gitweb / gitweb.perlon commit gitweb: Use the config file to set repository owner's name. (b59012e)
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21BEGIN {
  22        CGI->compile() if $ENV{'MOD_PERL'};
  23}
  24
  25our $cgi = new CGI;
  26our $version = "++GIT_VERSION++";
  27our $my_url = $cgi->url();
  28our $my_uri = $cgi->url(-absolute => 1);
  29
  30# core git executable to use
  31# this can just be "git" if your webserver has a sensible PATH
  32our $GIT = "++GIT_BINDIR++/git";
  33
  34# absolute fs-path which will be prepended to the project path
  35#our $projectroot = "/pub/scm";
  36our $projectroot = "++GITWEB_PROJECTROOT++";
  37
  38# fs traversing limit for getting project list
  39# the number is relative to the projectroot
  40our $project_maxdepth = "++GITWEB_PROJECT_MAXDEPTH++";
  41
  42# target of the home link on top of all pages
  43our $home_link = $my_uri || "/";
  44
  45# string of the home link on top of all pages
  46our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  47
  48# name of your site or organization to appear in page titles
  49# replace this with something more descriptive for clearer bookmarks
  50our $site_name = "++GITWEB_SITENAME++"
  51                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  52
  53# filename of html text to include at top of each page
  54our $site_header = "++GITWEB_SITE_HEADER++";
  55# html text to include at home page
  56our $home_text = "++GITWEB_HOMETEXT++";
  57# filename of html text to include at bottom of each page
  58our $site_footer = "++GITWEB_SITE_FOOTER++";
  59
  60# URI of stylesheets
  61our @stylesheets = ("++GITWEB_CSS++");
  62# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  63our $stylesheet = undef;
  64# URI of GIT logo (72x27 size)
  65our $logo = "++GITWEB_LOGO++";
  66# URI of GIT favicon, assumed to be image/png type
  67our $favicon = "++GITWEB_FAVICON++";
  68
  69# URI and label (title) of GIT logo link
  70#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  71#our $logo_label = "git documentation";
  72our $logo_url = "http://git.or.cz/";
  73our $logo_label = "git homepage";
  74
  75# source of projects list
  76our $projects_list = "++GITWEB_LIST++";
  77
  78# the width (in characters) of the projects list "Description" column
  79our $projects_list_description_width = 25;
  80
  81# default order of projects list
  82# valid values are none, project, descr, owner, and age
  83our $default_projects_order = "project";
  84
  85# show repository only if this file exists
  86# (only effective if this variable evaluates to true)
  87our $export_ok = "++GITWEB_EXPORT_OK++";
  88
  89# only allow viewing of repositories also shown on the overview page
  90our $strict_export = "++GITWEB_STRICT_EXPORT++";
  91
  92# list of git base URLs used for URL to where fetch project from,
  93# i.e. full URL is "$git_base_url/$project"
  94our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  95
  96# default blob_plain mimetype and default charset for text/plain blob
  97our $default_blob_plain_mimetype = 'text/plain';
  98our $default_text_plain_charset  = undef;
  99
 100# file to use for guessing MIME types before trying /etc/mime.types
 101# (relative to the current git repository)
 102our $mimetypes_file = undef;
 103
 104# assume this charset if line contains non-UTF-8 characters;
 105# it should be valid encoding (see Encoding::Supported(3pm) for list),
 106# for which encoding all byte sequences are valid, for example
 107# 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
 108# could be even 'utf-8' for the old behavior)
 109our $fallback_encoding = 'latin1';
 110
 111# rename detection options for git-diff and git-diff-tree
 112# - default is '-M', with the cost proportional to
 113#   (number of removed files) * (number of new files).
 114# - more costly is '-C' (which implies '-M'), with the cost proportional to
 115#   (number of changed files + number of removed files) * (number of new files)
 116# - even more costly is '-C', '--find-copies-harder' with cost
 117#   (number of files in the original tree) * (number of new files)
 118# - one might want to include '-B' option, e.g. '-B', '-M'
 119our @diff_opts = ('-M'); # taken from git_commit
 120
 121# information about snapshot formats that gitweb is capable of serving
 122our %known_snapshot_formats = (
 123        # name => {
 124        #       'display' => display name,
 125        #       'type' => mime type,
 126        #       'suffix' => filename suffix,
 127        #       'format' => --format for git-archive,
 128        #       'compressor' => [compressor command and arguments]
 129        #                       (array reference, optional)}
 130        #
 131        'tgz' => {
 132                'display' => 'tar.gz',
 133                'type' => 'application/x-gzip',
 134                'suffix' => '.tar.gz',
 135                'format' => 'tar',
 136                'compressor' => ['gzip']},
 137
 138        'tbz2' => {
 139                'display' => 'tar.bz2',
 140                'type' => 'application/x-bzip2',
 141                'suffix' => '.tar.bz2',
 142                'format' => 'tar',
 143                'compressor' => ['bzip2']},
 144
 145        'zip' => {
 146                'display' => 'zip',
 147                'type' => 'application/x-zip',
 148                'suffix' => '.zip',
 149                'format' => 'zip'},
 150);
 151
 152# Aliases so we understand old gitweb.snapshot values in repository
 153# configuration.
 154our %known_snapshot_format_aliases = (
 155        'gzip'  => 'tgz',
 156        'bzip2' => 'tbz2',
 157
 158        # backward compatibility: legacy gitweb config support
 159        'x-gzip' => undef, 'gz' => undef,
 160        'x-bzip2' => undef, 'bz2' => undef,
 161        'x-zip' => undef, '' => undef,
 162);
 163
 164# You define site-wide feature defaults here; override them with
 165# $GITWEB_CONFIG as necessary.
 166our %feature = (
 167        # feature => {
 168        #       'sub' => feature-sub (subroutine),
 169        #       'override' => allow-override (boolean),
 170        #       'default' => [ default options...] (array reference)}
 171        #
 172        # if feature is overridable (it means that allow-override has true value),
 173        # then feature-sub will be called with default options as parameters;
 174        # return value of feature-sub indicates if to enable specified feature
 175        #
 176        # if there is no 'sub' key (no feature-sub), then feature cannot be
 177        # overriden
 178        #
 179        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 180
 181        # Enable the 'blame' blob view, showing the last commit that modified
 182        # each line in the file. This can be very CPU-intensive.
 183
 184        # To enable system wide have in $GITWEB_CONFIG
 185        # $feature{'blame'}{'default'} = [1];
 186        # To have project specific config enable override in $GITWEB_CONFIG
 187        # $feature{'blame'}{'override'} = 1;
 188        # and in project config gitweb.blame = 0|1;
 189        'blame' => {
 190                'sub' => \&feature_blame,
 191                'override' => 0,
 192                'default' => [0]},
 193
 194        # Enable the 'snapshot' link, providing a compressed archive of any
 195        # tree. This can potentially generate high traffic if you have large
 196        # project.
 197
 198        # Value is a list of formats defined in %known_snapshot_formats that
 199        # you wish to offer.
 200        # To disable system wide have in $GITWEB_CONFIG
 201        # $feature{'snapshot'}{'default'} = [];
 202        # To have project specific config enable override in $GITWEB_CONFIG
 203        # $feature{'snapshot'}{'override'} = 1;
 204        # and in project config, a comma-separated list of formats or "none"
 205        # to disable.  Example: gitweb.snapshot = tbz2,zip;
 206        'snapshot' => {
 207                'sub' => \&feature_snapshot,
 208                'override' => 0,
 209                'default' => ['tgz']},
 210
 211        # Enable text search, which will list the commits which match author,
 212        # committer or commit text to a given string.  Enabled by default.
 213        # Project specific override is not supported.
 214        'search' => {
 215                'override' => 0,
 216                'default' => [1]},
 217
 218        # Enable grep search, which will list the files in currently selected
 219        # tree containing the given string. Enabled by default. This can be
 220        # potentially CPU-intensive, of course.
 221
 222        # To enable system wide have in $GITWEB_CONFIG
 223        # $feature{'grep'}{'default'} = [1];
 224        # To have project specific config enable override in $GITWEB_CONFIG
 225        # $feature{'grep'}{'override'} = 1;
 226        # and in project config gitweb.grep = 0|1;
 227        'grep' => {
 228                'override' => 0,
 229                'default' => [1]},
 230
 231        # Enable the pickaxe search, which will list the commits that modified
 232        # a given string in a file. This can be practical and quite faster
 233        # alternative to 'blame', but still potentially CPU-intensive.
 234
 235        # To enable system wide have in $GITWEB_CONFIG
 236        # $feature{'pickaxe'}{'default'} = [1];
 237        # To have project specific config enable override in $GITWEB_CONFIG
 238        # $feature{'pickaxe'}{'override'} = 1;
 239        # and in project config gitweb.pickaxe = 0|1;
 240        'pickaxe' => {
 241                'sub' => \&feature_pickaxe,
 242                'override' => 0,
 243                'default' => [1]},
 244
 245        # Make gitweb use an alternative format of the URLs which can be
 246        # more readable and natural-looking: project name is embedded
 247        # directly in the path and the query string contains other
 248        # auxiliary information. All gitweb installations recognize
 249        # URL in either format; this configures in which formats gitweb
 250        # generates links.
 251
 252        # To enable system wide have in $GITWEB_CONFIG
 253        # $feature{'pathinfo'}{'default'} = [1];
 254        # Project specific override is not supported.
 255
 256        # Note that you will need to change the default location of CSS,
 257        # favicon, logo and possibly other files to an absolute URL. Also,
 258        # if gitweb.cgi serves as your indexfile, you will need to force
 259        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 260        'pathinfo' => {
 261                'override' => 0,
 262                'default' => [0]},
 263
 264        # Make gitweb consider projects in project root subdirectories
 265        # to be forks of existing projects. Given project $projname.git,
 266        # projects matching $projname/*.git will not be shown in the main
 267        # projects list, instead a '+' mark will be added to $projname
 268        # there and a 'forks' view will be enabled for the project, listing
 269        # all the forks. If project list is taken from a file, forks have
 270        # to be listed after the main project.
 271
 272        # To enable system wide have in $GITWEB_CONFIG
 273        # $feature{'forks'}{'default'} = [1];
 274        # Project specific override is not supported.
 275        'forks' => {
 276                'override' => 0,
 277                'default' => [0]},
 278);
 279
 280sub gitweb_check_feature {
 281        my ($name) = @_;
 282        return unless exists $feature{$name};
 283        my ($sub, $override, @defaults) = (
 284                $feature{$name}{'sub'},
 285                $feature{$name}{'override'},
 286                @{$feature{$name}{'default'}});
 287        if (!$override) { return @defaults; }
 288        if (!defined $sub) {
 289                warn "feature $name is not overrideable";
 290                return @defaults;
 291        }
 292        return $sub->(@defaults);
 293}
 294
 295sub feature_blame {
 296        my ($val) = git_get_project_config('blame', '--bool');
 297
 298        if ($val eq 'true') {
 299                return 1;
 300        } elsif ($val eq 'false') {
 301                return 0;
 302        }
 303
 304        return $_[0];
 305}
 306
 307sub feature_snapshot {
 308        my (@fmts) = @_;
 309
 310        my ($val) = git_get_project_config('snapshot');
 311
 312        if ($val) {
 313                @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
 314        }
 315
 316        return @fmts;
 317}
 318
 319sub feature_grep {
 320        my ($val) = git_get_project_config('grep', '--bool');
 321
 322        if ($val eq 'true') {
 323                return (1);
 324        } elsif ($val eq 'false') {
 325                return (0);
 326        }
 327
 328        return ($_[0]);
 329}
 330
 331sub feature_pickaxe {
 332        my ($val) = git_get_project_config('pickaxe', '--bool');
 333
 334        if ($val eq 'true') {
 335                return (1);
 336        } elsif ($val eq 'false') {
 337                return (0);
 338        }
 339
 340        return ($_[0]);
 341}
 342
 343# checking HEAD file with -e is fragile if the repository was
 344# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 345# and then pruned.
 346sub check_head_link {
 347        my ($dir) = @_;
 348        my $headfile = "$dir/HEAD";
 349        return ((-e $headfile) ||
 350                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 351}
 352
 353sub check_export_ok {
 354        my ($dir) = @_;
 355        return (check_head_link($dir) &&
 356                (!$export_ok || -e "$dir/$export_ok"));
 357}
 358
 359# process alternate names for backward compatibility
 360# filter out unsupported (unknown) snapshot formats
 361sub filter_snapshot_fmts {
 362        my @fmts = @_;
 363
 364        @fmts = map {
 365                exists $known_snapshot_format_aliases{$_} ?
 366                       $known_snapshot_format_aliases{$_} : $_} @fmts;
 367        @fmts = grep(exists $known_snapshot_formats{$_}, @fmts);
 368
 369}
 370
 371our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 372do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 373
 374# version of the core git binary
 375our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 376
 377$projects_list ||= $projectroot;
 378
 379# ======================================================================
 380# input validation and dispatch
 381our $action = $cgi->param('a');
 382if (defined $action) {
 383        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 384                die_error(undef, "Invalid action parameter");
 385        }
 386}
 387
 388# parameters which are pathnames
 389our $project = $cgi->param('p');
 390if (defined $project) {
 391        if (!validate_pathname($project) ||
 392            !(-d "$projectroot/$project") ||
 393            !check_head_link("$projectroot/$project") ||
 394            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 395            ($strict_export && !project_in_list($project))) {
 396                undef $project;
 397                die_error(undef, "No such project");
 398        }
 399}
 400
 401our $file_name = $cgi->param('f');
 402if (defined $file_name) {
 403        if (!validate_pathname($file_name)) {
 404                die_error(undef, "Invalid file parameter");
 405        }
 406}
 407
 408our $file_parent = $cgi->param('fp');
 409if (defined $file_parent) {
 410        if (!validate_pathname($file_parent)) {
 411                die_error(undef, "Invalid file parent parameter");
 412        }
 413}
 414
 415# parameters which are refnames
 416our $hash = $cgi->param('h');
 417if (defined $hash) {
 418        if (!validate_refname($hash)) {
 419                die_error(undef, "Invalid hash parameter");
 420        }
 421}
 422
 423our $hash_parent = $cgi->param('hp');
 424if (defined $hash_parent) {
 425        if (!validate_refname($hash_parent)) {
 426                die_error(undef, "Invalid hash parent parameter");
 427        }
 428}
 429
 430our $hash_base = $cgi->param('hb');
 431if (defined $hash_base) {
 432        if (!validate_refname($hash_base)) {
 433                die_error(undef, "Invalid hash base parameter");
 434        }
 435}
 436
 437my %allowed_options = (
 438        "--no-merges" => [ qw(rss atom log shortlog history) ],
 439);
 440
 441our @extra_options = $cgi->param('opt');
 442if (defined @extra_options) {
 443        foreach my $opt (@extra_options) {
 444                if (not exists $allowed_options{$opt}) {
 445                        die_error(undef, "Invalid option parameter");
 446                }
 447                if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
 448                        die_error(undef, "Invalid option parameter for this action");
 449                }
 450        }
 451}
 452
 453our $hash_parent_base = $cgi->param('hpb');
 454if (defined $hash_parent_base) {
 455        if (!validate_refname($hash_parent_base)) {
 456                die_error(undef, "Invalid hash parent base parameter");
 457        }
 458}
 459
 460# other parameters
 461our $page = $cgi->param('pg');
 462if (defined $page) {
 463        if ($page =~ m/[^0-9]/) {
 464                die_error(undef, "Invalid page parameter");
 465        }
 466}
 467
 468our $searchtype = $cgi->param('st');
 469if (defined $searchtype) {
 470        if ($searchtype =~ m/[^a-z]/) {
 471                die_error(undef, "Invalid searchtype parameter");
 472        }
 473}
 474
 475our $searchtext = $cgi->param('s');
 476our $search_regexp;
 477if (defined $searchtext) {
 478        if (length($searchtext) < 2) {
 479                die_error(undef, "At least two characters are required for search parameter");
 480        }
 481        $search_regexp = quotemeta $searchtext;
 482}
 483
 484# now read PATH_INFO and use it as alternative to parameters
 485sub evaluate_path_info {
 486        return if defined $project;
 487        my $path_info = $ENV{"PATH_INFO"};
 488        return if !$path_info;
 489        $path_info =~ s,^/+,,;
 490        return if !$path_info;
 491        # find which part of PATH_INFO is project
 492        $project = $path_info;
 493        $project =~ s,/+$,,;
 494        while ($project && !check_head_link("$projectroot/$project")) {
 495                $project =~ s,/*[^/]*$,,;
 496        }
 497        # validate project
 498        $project = validate_pathname($project);
 499        if (!$project ||
 500            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 501            ($strict_export && !project_in_list($project))) {
 502                undef $project;
 503                return;
 504        }
 505        # do not change any parameters if an action is given using the query string
 506        return if $action;
 507        $path_info =~ s,^$project/*,,;
 508        my ($refname, $pathname) = split(/:/, $path_info, 2);
 509        if (defined $pathname) {
 510                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 511                # we could use git_get_type(branch:pathname), but it needs $git_dir
 512                $pathname =~ s,^/+,,;
 513                if (!$pathname || substr($pathname, -1) eq "/") {
 514                        $action  ||= "tree";
 515                        $pathname =~ s,/$,,;
 516                } else {
 517                        $action  ||= "blob_plain";
 518                }
 519                $hash_base ||= validate_refname($refname);
 520                $file_name ||= validate_pathname($pathname);
 521        } elsif (defined $refname) {
 522                # we got "project.git/branch"
 523                $action ||= "shortlog";
 524                $hash   ||= validate_refname($refname);
 525        }
 526}
 527evaluate_path_info();
 528
 529# path to the current git repository
 530our $git_dir;
 531$git_dir = "$projectroot/$project" if $project;
 532
 533# dispatch
 534my %actions = (
 535        "blame" => \&git_blame2,
 536        "blobdiff" => \&git_blobdiff,
 537        "blobdiff_plain" => \&git_blobdiff_plain,
 538        "blob" => \&git_blob,
 539        "blob_plain" => \&git_blob_plain,
 540        "commitdiff" => \&git_commitdiff,
 541        "commitdiff_plain" => \&git_commitdiff_plain,
 542        "commit" => \&git_commit,
 543        "forks" => \&git_forks,
 544        "heads" => \&git_heads,
 545        "history" => \&git_history,
 546        "log" => \&git_log,
 547        "rss" => \&git_rss,
 548        "atom" => \&git_atom,
 549        "search" => \&git_search,
 550        "search_help" => \&git_search_help,
 551        "shortlog" => \&git_shortlog,
 552        "summary" => \&git_summary,
 553        "tag" => \&git_tag,
 554        "tags" => \&git_tags,
 555        "tree" => \&git_tree,
 556        "snapshot" => \&git_snapshot,
 557        "object" => \&git_object,
 558        # those below don't need $project
 559        "opml" => \&git_opml,
 560        "project_list" => \&git_project_list,
 561        "project_index" => \&git_project_index,
 562);
 563
 564if (!defined $action) {
 565        if (defined $hash) {
 566                $action = git_get_type($hash);
 567        } elsif (defined $hash_base && defined $file_name) {
 568                $action = git_get_type("$hash_base:$file_name");
 569        } elsif (defined $project) {
 570                $action = 'summary';
 571        } else {
 572                $action = 'project_list';
 573        }
 574}
 575if (!defined($actions{$action})) {
 576        die_error(undef, "Unknown action");
 577}
 578if ($action !~ m/^(opml|project_list|project_index)$/ &&
 579    !$project) {
 580        die_error(undef, "Project needed");
 581}
 582$actions{$action}->();
 583exit;
 584
 585## ======================================================================
 586## action links
 587
 588sub href(%) {
 589        my %params = @_;
 590        # default is to use -absolute url() i.e. $my_uri
 591        my $href = $params{-full} ? $my_url : $my_uri;
 592
 593        # XXX: Warning: If you touch this, check the search form for updating,
 594        # too.
 595
 596        my @mapping = (
 597                project => "p",
 598                action => "a",
 599                file_name => "f",
 600                file_parent => "fp",
 601                hash => "h",
 602                hash_parent => "hp",
 603                hash_base => "hb",
 604                hash_parent_base => "hpb",
 605                page => "pg",
 606                order => "o",
 607                searchtext => "s",
 608                searchtype => "st",
 609                snapshot_format => "sf",
 610                extra_options => "opt",
 611        );
 612        my %mapping = @mapping;
 613
 614        if ($params{-replay}) {
 615                while (my ($name, $symbol) = each %mapping) {
 616                        if (!exists $params{$name}) {
 617                                # to allow for multivalued params we use arrayref form
 618                                $params{$name} = [ $cgi->param($symbol) ];
 619                        }
 620                }
 621        }
 622
 623        $params{'project'} = $project unless exists $params{'project'};
 624
 625        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 626        if ($use_pathinfo) {
 627                # use PATH_INFO for project name
 628                $href .= "/$params{'project'}" if defined $params{'project'};
 629                delete $params{'project'};
 630
 631                # Summary just uses the project path URL
 632                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 633                        delete $params{'action'};
 634                }
 635        }
 636
 637        # now encode the parameters explicitly
 638        my @result = ();
 639        for (my $i = 0; $i < @mapping; $i += 2) {
 640                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 641                if (defined $params{$name}) {
 642                        if (ref($params{$name}) eq "ARRAY") {
 643                                foreach my $par (@{$params{$name}}) {
 644                                        push @result, $symbol . "=" . esc_param($par);
 645                                }
 646                        } else {
 647                                push @result, $symbol . "=" . esc_param($params{$name});
 648                        }
 649                }
 650        }
 651        $href .= "?" . join(';', @result) if scalar @result;
 652
 653        return $href;
 654}
 655
 656
 657## ======================================================================
 658## validation, quoting/unquoting and escaping
 659
 660sub validate_pathname {
 661        my $input = shift || return undef;
 662
 663        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 664        # at the beginning, at the end, and between slashes.
 665        # also this catches doubled slashes
 666        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 667                return undef;
 668        }
 669        # no null characters
 670        if ($input =~ m!\0!) {
 671                return undef;
 672        }
 673        return $input;
 674}
 675
 676sub validate_refname {
 677        my $input = shift || return undef;
 678
 679        # textual hashes are O.K.
 680        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 681                return $input;
 682        }
 683        # it must be correct pathname
 684        $input = validate_pathname($input)
 685                or return undef;
 686        # restrictions on ref name according to git-check-ref-format
 687        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 688                return undef;
 689        }
 690        return $input;
 691}
 692
 693# decode sequences of octets in utf8 into Perl's internal form,
 694# which is utf-8 with utf8 flag set if needed.  gitweb writes out
 695# in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
 696sub to_utf8 {
 697        my $str = shift;
 698        if (utf8::valid($str)) {
 699                utf8::decode($str);
 700                return $str;
 701        } else {
 702                return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
 703        }
 704}
 705
 706# quote unsafe chars, but keep the slash, even when it's not
 707# correct, but quoted slashes look too horrible in bookmarks
 708sub esc_param {
 709        my $str = shift;
 710        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 711        $str =~ s/\+/%2B/g;
 712        $str =~ s/ /\+/g;
 713        return $str;
 714}
 715
 716# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 717sub esc_url {
 718        my $str = shift;
 719        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 720        $str =~ s/\+/%2B/g;
 721        $str =~ s/ /\+/g;
 722        return $str;
 723}
 724
 725# replace invalid utf8 character with SUBSTITUTION sequence
 726sub esc_html ($;%) {
 727        my $str = shift;
 728        my %opts = @_;
 729
 730        $str = to_utf8($str);
 731        $str = $cgi->escapeHTML($str);
 732        if ($opts{'-nbsp'}) {
 733                $str =~ s/ /&nbsp;/g;
 734        }
 735        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 736        return $str;
 737}
 738
 739# quote control characters and escape filename to HTML
 740sub esc_path {
 741        my $str = shift;
 742        my %opts = @_;
 743
 744        $str = to_utf8($str);
 745        $str = $cgi->escapeHTML($str);
 746        if ($opts{'-nbsp'}) {
 747                $str =~ s/ /&nbsp;/g;
 748        }
 749        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 750        return $str;
 751}
 752
 753# Make control characters "printable", using character escape codes (CEC)
 754sub quot_cec {
 755        my $cntrl = shift;
 756        my %es = ( # character escape codes, aka escape sequences
 757                   "\t" => '\t',   # tab            (HT)
 758                   "\n" => '\n',   # line feed      (LF)
 759                   "\r" => '\r',   # carrige return (CR)
 760                   "\f" => '\f',   # form feed      (FF)
 761                   "\b" => '\b',   # backspace      (BS)
 762                   "\a" => '\a',   # alarm (bell)   (BEL)
 763                   "\e" => '\e',   # escape         (ESC)
 764                   "\013" => '\v', # vertical tab   (VT)
 765                   "\000" => '\0', # nul character  (NUL)
 766                   );
 767        my $chr = ( (exists $es{$cntrl})
 768                    ? $es{$cntrl}
 769                    : sprintf('\%03o', ord($cntrl)) );
 770        return "<span class=\"cntrl\">$chr</span>";
 771}
 772
 773# Alternatively use unicode control pictures codepoints,
 774# Unicode "printable representation" (PR)
 775sub quot_upr {
 776        my $cntrl = shift;
 777        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 778        return "<span class=\"cntrl\">$chr</span>";
 779}
 780
 781# git may return quoted and escaped filenames
 782sub unquote {
 783        my $str = shift;
 784
 785        sub unq {
 786                my $seq = shift;
 787                my %es = ( # character escape codes, aka escape sequences
 788                        't' => "\t",   # tab            (HT, TAB)
 789                        'n' => "\n",   # newline        (NL)
 790                        'r' => "\r",   # return         (CR)
 791                        'f' => "\f",   # form feed      (FF)
 792                        'b' => "\b",   # backspace      (BS)
 793                        'a' => "\a",   # alarm (bell)   (BEL)
 794                        'e' => "\e",   # escape         (ESC)
 795                        'v' => "\013", # vertical tab   (VT)
 796                );
 797
 798                if ($seq =~ m/^[0-7]{1,3}$/) {
 799                        # octal char sequence
 800                        return chr(oct($seq));
 801                } elsif (exists $es{$seq}) {
 802                        # C escape sequence, aka character escape code
 803                        return $es{$seq}
 804                }
 805                # quoted ordinary character
 806                return $seq;
 807        }
 808
 809        if ($str =~ m/^"(.*)"$/) {
 810                # needs unquoting
 811                $str = $1;
 812                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 813        }
 814        return $str;
 815}
 816
 817# escape tabs (convert tabs to spaces)
 818sub untabify {
 819        my $line = shift;
 820
 821        while ((my $pos = index($line, "\t")) != -1) {
 822                if (my $count = (8 - ($pos % 8))) {
 823                        my $spaces = ' ' x $count;
 824                        $line =~ s/\t/$spaces/;
 825                }
 826        }
 827
 828        return $line;
 829}
 830
 831sub project_in_list {
 832        my $project = shift;
 833        my @list = git_get_projects_list();
 834        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 835}
 836
 837## ----------------------------------------------------------------------
 838## HTML aware string manipulation
 839
 840sub chop_str {
 841        my $str = shift;
 842        my $len = shift;
 843        my $add_len = shift || 10;
 844
 845        # allow only $len chars, but don't cut a word if it would fit in $add_len
 846        # if it doesn't fit, cut it if it's still longer than the dots we would add
 847        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 848        my $body = $1;
 849        my $tail = $2;
 850        if (length($tail) > 4) {
 851                $tail = " ...";
 852                $body =~ s/&[^;]*$//; # remove chopped character entities
 853        }
 854        return "$body$tail";
 855}
 856
 857# takes the same arguments as chop_str, but also wraps a <span> around the
 858# result with a title attribute if it does get chopped. Additionally, the
 859# string is HTML-escaped.
 860sub chop_and_escape_str {
 861        my $str = shift;
 862        my $len = shift;
 863        my $add_len = shift || 10;
 864
 865        my $chopped = chop_str($str, $len, $add_len);
 866        if ($chopped eq $str) {
 867                return esc_html($chopped);
 868        } else {
 869                return qq{<span title="} . esc_html($str) . qq{">} .
 870                        esc_html($chopped) . qq{</span>};
 871        }
 872}
 873
 874## ----------------------------------------------------------------------
 875## functions returning short strings
 876
 877# CSS class for given age value (in seconds)
 878sub age_class {
 879        my $age = shift;
 880
 881        if (!defined $age) {
 882                return "noage";
 883        } elsif ($age < 60*60*2) {
 884                return "age0";
 885        } elsif ($age < 60*60*24*2) {
 886                return "age1";
 887        } else {
 888                return "age2";
 889        }
 890}
 891
 892# convert age in seconds to "nn units ago" string
 893sub age_string {
 894        my $age = shift;
 895        my $age_str;
 896
 897        if ($age > 60*60*24*365*2) {
 898                $age_str = (int $age/60/60/24/365);
 899                $age_str .= " years ago";
 900        } elsif ($age > 60*60*24*(365/12)*2) {
 901                $age_str = int $age/60/60/24/(365/12);
 902                $age_str .= " months ago";
 903        } elsif ($age > 60*60*24*7*2) {
 904                $age_str = int $age/60/60/24/7;
 905                $age_str .= " weeks ago";
 906        } elsif ($age > 60*60*24*2) {
 907                $age_str = int $age/60/60/24;
 908                $age_str .= " days ago";
 909        } elsif ($age > 60*60*2) {
 910                $age_str = int $age/60/60;
 911                $age_str .= " hours ago";
 912        } elsif ($age > 60*2) {
 913                $age_str = int $age/60;
 914                $age_str .= " min ago";
 915        } elsif ($age > 2) {
 916                $age_str = int $age;
 917                $age_str .= " sec ago";
 918        } else {
 919                $age_str .= " right now";
 920        }
 921        return $age_str;
 922}
 923
 924use constant {
 925        S_IFINVALID => 0030000,
 926        S_IFGITLINK => 0160000,
 927};
 928
 929# submodule/subproject, a commit object reference
 930sub S_ISGITLINK($) {
 931        my $mode = shift;
 932
 933        return (($mode & S_IFMT) == S_IFGITLINK)
 934}
 935
 936# convert file mode in octal to symbolic file mode string
 937sub mode_str {
 938        my $mode = oct shift;
 939
 940        if (S_ISGITLINK($mode)) {
 941                return 'm---------';
 942        } elsif (S_ISDIR($mode & S_IFMT)) {
 943                return 'drwxr-xr-x';
 944        } elsif (S_ISLNK($mode)) {
 945                return 'lrwxrwxrwx';
 946        } elsif (S_ISREG($mode)) {
 947                # git cares only about the executable bit
 948                if ($mode & S_IXUSR) {
 949                        return '-rwxr-xr-x';
 950                } else {
 951                        return '-rw-r--r--';
 952                };
 953        } else {
 954                return '----------';
 955        }
 956}
 957
 958# convert file mode in octal to file type string
 959sub file_type {
 960        my $mode = shift;
 961
 962        if ($mode !~ m/^[0-7]+$/) {
 963                return $mode;
 964        } else {
 965                $mode = oct $mode;
 966        }
 967
 968        if (S_ISGITLINK($mode)) {
 969                return "submodule";
 970        } elsif (S_ISDIR($mode & S_IFMT)) {
 971                return "directory";
 972        } elsif (S_ISLNK($mode)) {
 973                return "symlink";
 974        } elsif (S_ISREG($mode)) {
 975                return "file";
 976        } else {
 977                return "unknown";
 978        }
 979}
 980
 981# convert file mode in octal to file type description string
 982sub file_type_long {
 983        my $mode = shift;
 984
 985        if ($mode !~ m/^[0-7]+$/) {
 986                return $mode;
 987        } else {
 988                $mode = oct $mode;
 989        }
 990
 991        if (S_ISGITLINK($mode)) {
 992                return "submodule";
 993        } elsif (S_ISDIR($mode & S_IFMT)) {
 994                return "directory";
 995        } elsif (S_ISLNK($mode)) {
 996                return "symlink";
 997        } elsif (S_ISREG($mode)) {
 998                if ($mode & S_IXUSR) {
 999                        return "executable";
1000                } else {
1001                        return "file";
1002                };
1003        } else {
1004                return "unknown";
1005        }
1006}
1007
1008
1009## ----------------------------------------------------------------------
1010## functions returning short HTML fragments, or transforming HTML fragments
1011## which don't belong to other sections
1012
1013# format line of commit message.
1014sub format_log_line_html {
1015        my $line = shift;
1016
1017        $line = esc_html($line, -nbsp=>1);
1018        if ($line =~ m/([0-9a-fA-F]{8,40})/) {
1019                my $hash_text = $1;
1020                my $link =
1021                        $cgi->a({-href => href(action=>"object", hash=>$hash_text),
1022                                -class => "text"}, $hash_text);
1023                $line =~ s/$hash_text/$link/;
1024        }
1025        return $line;
1026}
1027
1028# format marker of refs pointing to given object
1029sub format_ref_marker {
1030        my ($refs, $id) = @_;
1031        my $markers = '';
1032
1033        if (defined $refs->{$id}) {
1034                foreach my $ref (@{$refs->{$id}}) {
1035                        my ($type, $name) = qw();
1036                        # e.g. tags/v2.6.11 or heads/next
1037                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
1038                                $type = $1;
1039                                $name = $2;
1040                        } else {
1041                                $type = "ref";
1042                                $name = $ref;
1043                        }
1044
1045                        $markers .= " <span class=\"$type\" title=\"$ref\">" .
1046                                    esc_html($name) . "</span>";
1047                }
1048        }
1049
1050        if ($markers) {
1051                return ' <span class="refs">'. $markers . '</span>';
1052        } else {
1053                return "";
1054        }
1055}
1056
1057# format, perhaps shortened and with markers, title line
1058sub format_subject_html {
1059        my ($long, $short, $href, $extra) = @_;
1060        $extra = '' unless defined($extra);
1061
1062        if (length($short) < length($long)) {
1063                return $cgi->a({-href => $href, -class => "list subject",
1064                                -title => to_utf8($long)},
1065                       esc_html($short) . $extra);
1066        } else {
1067                return $cgi->a({-href => $href, -class => "list subject"},
1068                       esc_html($long)  . $extra);
1069        }
1070}
1071
1072# format git diff header line, i.e. "diff --(git|combined|cc) ..."
1073sub format_git_diff_header_line {
1074        my $line = shift;
1075        my $diffinfo = shift;
1076        my ($from, $to) = @_;
1077
1078        if ($diffinfo->{'nparents'}) {
1079                # combined diff
1080                $line =~ s!^(diff (.*?) )"?.*$!$1!;
1081                if ($to->{'href'}) {
1082                        $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1083                                         esc_path($to->{'file'}));
1084                } else { # file was deleted (no href)
1085                        $line .= esc_path($to->{'file'});
1086                }
1087        } else {
1088                # "ordinary" diff
1089                $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
1090                if ($from->{'href'}) {
1091                        $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
1092                                         'a/' . esc_path($from->{'file'}));
1093                } else { # file was added (no href)
1094                        $line .= 'a/' . esc_path($from->{'file'});
1095                }
1096                $line .= ' ';
1097                if ($to->{'href'}) {
1098                        $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1099                                         'b/' . esc_path($to->{'file'}));
1100                } else { # file was deleted
1101                        $line .= 'b/' . esc_path($to->{'file'});
1102                }
1103        }
1104
1105        return "<div class=\"diff header\">$line</div>\n";
1106}
1107
1108# format extended diff header line, before patch itself
1109sub format_extended_diff_header_line {
1110        my $line = shift;
1111        my $diffinfo = shift;
1112        my ($from, $to) = @_;
1113
1114        # match <path>
1115        if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
1116                $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1117                                       esc_path($from->{'file'}));
1118        }
1119        if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
1120                $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1121                                 esc_path($to->{'file'}));
1122        }
1123        # match single <mode>
1124        if ($line =~ m/\s(\d{6})$/) {
1125                $line .= '<span class="info"> (' .
1126                         file_type_long($1) .
1127                         ')</span>';
1128        }
1129        # match <hash>
1130        if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
1131                # can match only for combined diff
1132                $line = 'index ';
1133                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1134                        if ($from->{'href'}[$i]) {
1135                                $line .= $cgi->a({-href=>$from->{'href'}[$i],
1136                                                  -class=>"hash"},
1137                                                 substr($diffinfo->{'from_id'}[$i],0,7));
1138                        } else {
1139                                $line .= '0' x 7;
1140                        }
1141                        # separator
1142                        $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
1143                }
1144                $line .= '..';
1145                if ($to->{'href'}) {
1146                        $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1147                                         substr($diffinfo->{'to_id'},0,7));
1148                } else {
1149                        $line .= '0' x 7;
1150                }
1151
1152        } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
1153                # can match only for ordinary diff
1154                my ($from_link, $to_link);
1155                if ($from->{'href'}) {
1156                        $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
1157                                             substr($diffinfo->{'from_id'},0,7));
1158                } else {
1159                        $from_link = '0' x 7;
1160                }
1161                if ($to->{'href'}) {
1162                        $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1163                                           substr($diffinfo->{'to_id'},0,7));
1164                } else {
1165                        $to_link = '0' x 7;
1166                }
1167                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
1168                $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
1169        }
1170
1171        return $line . "<br/>\n";
1172}
1173
1174# format from-file/to-file diff header
1175sub format_diff_from_to_header {
1176        my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
1177        my $line;
1178        my $result = '';
1179
1180        $line = $from_line;
1181        #assert($line =~ m/^---/) if DEBUG;
1182        # no extra formatting for "^--- /dev/null"
1183        if (! $diffinfo->{'nparents'}) {
1184                # ordinary (single parent) diff
1185                if ($line =~ m!^--- "?a/!) {
1186                        if ($from->{'href'}) {
1187                                $line = '--- a/' .
1188                                        $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1189                                                esc_path($from->{'file'}));
1190                        } else {
1191                                $line = '--- a/' .
1192                                        esc_path($from->{'file'});
1193                        }
1194                }
1195                $result .= qq!<div class="diff from_file">$line</div>\n!;
1196
1197        } else {
1198                # combined diff (merge commit)
1199                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1200                        if ($from->{'href'}[$i]) {
1201                                $line = '--- ' .
1202                                        $cgi->a({-href=>href(action=>"blobdiff",
1203                                                             hash_parent=>$diffinfo->{'from_id'}[$i],
1204                                                             hash_parent_base=>$parents[$i],
1205                                                             file_parent=>$from->{'file'}[$i],
1206                                                             hash=>$diffinfo->{'to_id'},
1207                                                             hash_base=>$hash,
1208                                                             file_name=>$to->{'file'}),
1209                                                 -class=>"path",
1210                                                 -title=>"diff" . ($i+1)},
1211                                                $i+1) .
1212                                        '/' .
1213                                        $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
1214                                                esc_path($from->{'file'}[$i]));
1215                        } else {
1216                                $line = '--- /dev/null';
1217                        }
1218                        $result .= qq!<div class="diff from_file">$line</div>\n!;
1219                }
1220        }
1221
1222        $line = $to_line;
1223        #assert($line =~ m/^\+\+\+/) if DEBUG;
1224        # no extra formatting for "^+++ /dev/null"
1225        if ($line =~ m!^\+\+\+ "?b/!) {
1226                if ($to->{'href'}) {
1227                        $line = '+++ b/' .
1228                                $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1229                                        esc_path($to->{'file'}));
1230                } else {
1231                        $line = '+++ b/' .
1232                                esc_path($to->{'file'});
1233                }
1234        }
1235        $result .= qq!<div class="diff to_file">$line</div>\n!;
1236
1237        return $result;
1238}
1239
1240# create note for patch simplified by combined diff
1241sub format_diff_cc_simplified {
1242        my ($diffinfo, @parents) = @_;
1243        my $result = '';
1244
1245        $result .= "<div class=\"diff header\">" .
1246                   "diff --cc ";
1247        if (!is_deleted($diffinfo)) {
1248                $result .= $cgi->a({-href => href(action=>"blob",
1249                                                  hash_base=>$hash,
1250                                                  hash=>$diffinfo->{'to_id'},
1251                                                  file_name=>$diffinfo->{'to_file'}),
1252                                    -class => "path"},
1253                                   esc_path($diffinfo->{'to_file'}));
1254        } else {
1255                $result .= esc_path($diffinfo->{'to_file'});
1256        }
1257        $result .= "</div>\n" . # class="diff header"
1258                   "<div class=\"diff nodifferences\">" .
1259                   "Simple merge" .
1260                   "</div>\n"; # class="diff nodifferences"
1261
1262        return $result;
1263}
1264
1265# format patch (diff) line (not to be used for diff headers)
1266sub format_diff_line {
1267        my $line = shift;
1268        my ($from, $to) = @_;
1269        my $diff_class = "";
1270
1271        chomp $line;
1272
1273        if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
1274                # combined diff
1275                my $prefix = substr($line, 0, scalar @{$from->{'href'}});
1276                if ($line =~ m/^\@{3}/) {
1277                        $diff_class = " chunk_header";
1278                } elsif ($line =~ m/^\\/) {
1279                        $diff_class = " incomplete";
1280                } elsif ($prefix =~ tr/+/+/) {
1281                        $diff_class = " add";
1282                } elsif ($prefix =~ tr/-/-/) {
1283                        $diff_class = " rem";
1284                }
1285        } else {
1286                # assume ordinary diff
1287                my $char = substr($line, 0, 1);
1288                if ($char eq '+') {
1289                        $diff_class = " add";
1290                } elsif ($char eq '-') {
1291                        $diff_class = " rem";
1292                } elsif ($char eq '@') {
1293                        $diff_class = " chunk_header";
1294                } elsif ($char eq "\\") {
1295                        $diff_class = " incomplete";
1296                }
1297        }
1298        $line = untabify($line);
1299        if ($from && $to && $line =~ m/^\@{2} /) {
1300                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
1301                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
1302
1303                $from_lines = 0 unless defined $from_lines;
1304                $to_lines   = 0 unless defined $to_lines;
1305
1306                if ($from->{'href'}) {
1307                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
1308                                             -class=>"list"}, $from_text);
1309                }
1310                if ($to->{'href'}) {
1311                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
1312                                             -class=>"list"}, $to_text);
1313                }
1314                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
1315                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1316                return "<div class=\"diff$diff_class\">$line</div>\n";
1317        } elsif ($from && $to && $line =~ m/^\@{3}/) {
1318                my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
1319                my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
1320
1321                @from_text = split(' ', $ranges);
1322                for (my $i = 0; $i < @from_text; ++$i) {
1323                        ($from_start[$i], $from_nlines[$i]) =
1324                                (split(',', substr($from_text[$i], 1)), 0);
1325                }
1326
1327                $to_text   = pop @from_text;
1328                $to_start  = pop @from_start;
1329                $to_nlines = pop @from_nlines;
1330
1331                $line = "<span class=\"chunk_info\">$prefix ";
1332                for (my $i = 0; $i < @from_text; ++$i) {
1333                        if ($from->{'href'}[$i]) {
1334                                $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
1335                                                  -class=>"list"}, $from_text[$i]);
1336                        } else {
1337                                $line .= $from_text[$i];
1338                        }
1339                        $line .= " ";
1340                }
1341                if ($to->{'href'}) {
1342                        $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
1343                                          -class=>"list"}, $to_text);
1344                } else {
1345                        $line .= $to_text;
1346                }
1347                $line .= " $prefix</span>" .
1348                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1349                return "<div class=\"diff$diff_class\">$line</div>\n";
1350        }
1351        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
1352}
1353
1354# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
1355# linked.  Pass the hash of the tree/commit to snapshot.
1356sub format_snapshot_links {
1357        my ($hash) = @_;
1358        my @snapshot_fmts = gitweb_check_feature('snapshot');
1359        @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
1360        my $num_fmts = @snapshot_fmts;
1361        if ($num_fmts > 1) {
1362                # A parenthesized list of links bearing format names.
1363                # e.g. "snapshot (_tar.gz_ _zip_)"
1364                return "snapshot (" . join(' ', map
1365                        $cgi->a({
1366                                -href => href(
1367                                        action=>"snapshot",
1368                                        hash=>$hash,
1369                                        snapshot_format=>$_
1370                                )
1371                        }, $known_snapshot_formats{$_}{'display'})
1372                , @snapshot_fmts) . ")";
1373        } elsif ($num_fmts == 1) {
1374                # A single "snapshot" link whose tooltip bears the format name.
1375                # i.e. "_snapshot_"
1376                my ($fmt) = @snapshot_fmts;
1377                return
1378                        $cgi->a({
1379                                -href => href(
1380                                        action=>"snapshot",
1381                                        hash=>$hash,
1382                                        snapshot_format=>$fmt
1383                                ),
1384                                -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
1385                        }, "snapshot");
1386        } else { # $num_fmts == 0
1387                return undef;
1388        }
1389}
1390
1391## ----------------------------------------------------------------------
1392## git utility subroutines, invoking git commands
1393
1394# returns path to the core git executable and the --git-dir parameter as list
1395sub git_cmd {
1396        return $GIT, '--git-dir='.$git_dir;
1397}
1398
1399# returns path to the core git executable and the --git-dir parameter as string
1400sub git_cmd_str {
1401        return join(' ', git_cmd());
1402}
1403
1404# get HEAD ref of given project as hash
1405sub git_get_head_hash {
1406        my $project = shift;
1407        my $o_git_dir = $git_dir;
1408        my $retval = undef;
1409        $git_dir = "$projectroot/$project";
1410        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1411                my $head = <$fd>;
1412                close $fd;
1413                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1414                        $retval = $1;
1415                }
1416        }
1417        if (defined $o_git_dir) {
1418                $git_dir = $o_git_dir;
1419        }
1420        return $retval;
1421}
1422
1423# get type of given object
1424sub git_get_type {
1425        my $hash = shift;
1426
1427        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1428        my $type = <$fd>;
1429        close $fd or return;
1430        chomp $type;
1431        return $type;
1432}
1433
1434# repository configuration
1435our $config_file = '';
1436our %config;
1437
1438# store multiple values for single key as anonymous array reference
1439# single values stored directly in the hash, not as [ <value> ]
1440sub hash_set_multi {
1441        my ($hash, $key, $value) = @_;
1442
1443        if (!exists $hash->{$key}) {
1444                $hash->{$key} = $value;
1445        } elsif (!ref $hash->{$key}) {
1446                $hash->{$key} = [ $hash->{$key}, $value ];
1447        } else {
1448                push @{$hash->{$key}}, $value;
1449        }
1450}
1451
1452# return hash of git project configuration
1453# optionally limited to some section, e.g. 'gitweb'
1454sub git_parse_project_config {
1455        my $section_regexp = shift;
1456        my %config;
1457
1458        local $/ = "\0";
1459
1460        open my $fh, "-|", git_cmd(), "config", '-z', '-l',
1461                or return;
1462
1463        while (my $keyval = <$fh>) {
1464                chomp $keyval;
1465                my ($key, $value) = split(/\n/, $keyval, 2);
1466
1467                hash_set_multi(\%config, $key, $value)
1468                        if (!defined $section_regexp || $key =~ /^(?:$section_regexp)\./o);
1469        }
1470        close $fh;
1471
1472        return %config;
1473}
1474
1475# convert config value to boolean, 'true' or 'false'
1476# no value, number > 0, 'true' and 'yes' values are true
1477# rest of values are treated as false (never as error)
1478sub config_to_bool {
1479        my $val = shift;
1480
1481        # strip leading and trailing whitespace
1482        $val =~ s/^\s+//;
1483        $val =~ s/\s+$//;
1484
1485        return (!defined $val ||               # section.key
1486                ($val =~ /^\d+$/ && $val) ||   # section.key = 1
1487                ($val =~ /^(?:true|yes)$/i));  # section.key = true
1488}
1489
1490# convert config value to simple decimal number
1491# an optional value suffix of 'k', 'm', or 'g' will cause the value
1492# to be multiplied by 1024, 1048576, or 1073741824
1493sub config_to_int {
1494        my $val = shift;
1495
1496        # strip leading and trailing whitespace
1497        $val =~ s/^\s+//;
1498        $val =~ s/\s+$//;
1499
1500        if (my ($num, $unit) = ($val =~ /^([0-9]*)([kmg])$/i)) {
1501                $unit = lc($unit);
1502                # unknown unit is treated as 1
1503                return $num * ($unit eq 'g' ? 1073741824 :
1504                               $unit eq 'm' ?    1048576 :
1505                               $unit eq 'k' ?       1024 : 1);
1506        }
1507        return $val;
1508}
1509
1510# convert config value to array reference, if needed
1511sub config_to_multi {
1512        my $val = shift;
1513
1514        return ref($val) ? $val : (defined($val) ? [ $val ] : []);
1515}
1516
1517sub git_get_project_config {
1518        my ($key, $type) = @_;
1519
1520        # key sanity check
1521        return unless ($key);
1522        $key =~ s/^gitweb\.//;
1523        return if ($key =~ m/\W/);
1524
1525        # type sanity check
1526        if (defined $type) {
1527                $type =~ s/^--//;
1528                $type = undef
1529                        unless ($type eq 'bool' || $type eq 'int');
1530        }
1531
1532        # get config
1533        if (!defined $config_file ||
1534            $config_file ne "$git_dir/config") {
1535                %config = git_parse_project_config('gitweb');
1536                $config_file = "$git_dir/config";
1537        }
1538
1539        # ensure given type
1540        if (!defined $type) {
1541                return $config{"gitweb.$key"};
1542        } elsif ($type eq 'bool') {
1543                # backward compatibility: 'git config --bool' returns true/false
1544                return config_to_bool($config{"gitweb.$key"}) ? 'true' : 'false';
1545        } elsif ($type eq 'int') {
1546                return config_to_int($config{"gitweb.$key"});
1547        }
1548        return $config{"gitweb.$key"};
1549}
1550
1551# get hash of given path at given ref
1552sub git_get_hash_by_path {
1553        my $base = shift;
1554        my $path = shift || return undef;
1555        my $type = shift;
1556
1557        $path =~ s,/+$,,;
1558
1559        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1560                or die_error(undef, "Open git-ls-tree failed");
1561        my $line = <$fd>;
1562        close $fd or return undef;
1563
1564        if (!defined $line) {
1565                # there is no tree or hash given by $path at $base
1566                return undef;
1567        }
1568
1569        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1570        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1571        if (defined $type && $type ne $2) {
1572                # type doesn't match
1573                return undef;
1574        }
1575        return $3;
1576}
1577
1578# get path of entry with given hash at given tree-ish (ref)
1579# used to get 'from' filename for combined diff (merge commit) for renames
1580sub git_get_path_by_hash {
1581        my $base = shift || return;
1582        my $hash = shift || return;
1583
1584        local $/ = "\0";
1585
1586        open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1587                or return undef;
1588        while (my $line = <$fd>) {
1589                chomp $line;
1590
1591                #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1592                #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1593                if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1594                        close $fd;
1595                        return $1;
1596                }
1597        }
1598        close $fd;
1599        return undef;
1600}
1601
1602## ......................................................................
1603## git utility functions, directly accessing git repository
1604
1605sub git_get_project_description {
1606        my $path = shift;
1607
1608        $git_dir = "$projectroot/$path";
1609        open my $fd, "$git_dir/description"
1610                or return git_get_project_config('description');
1611        my $descr = <$fd>;
1612        close $fd;
1613        if (defined $descr) {
1614                chomp $descr;
1615        }
1616        return $descr;
1617}
1618
1619sub git_get_project_url_list {
1620        my $path = shift;
1621
1622        $git_dir = "$projectroot/$path";
1623        open my $fd, "$projectroot/$path/cloneurl"
1624                or return wantarray ?
1625                @{ config_to_multi(git_get_project_config('url')) } :
1626                   config_to_multi(git_get_project_config('url'));
1627        my @git_project_url_list = map { chomp; $_ } <$fd>;
1628        close $fd;
1629
1630        return wantarray ? @git_project_url_list : \@git_project_url_list;
1631}
1632
1633sub git_get_projects_list {
1634        my ($filter) = @_;
1635        my @list;
1636
1637        $filter ||= '';
1638        $filter =~ s/\.git$//;
1639
1640        my ($check_forks) = gitweb_check_feature('forks');
1641
1642        if (-d $projects_list) {
1643                # search in directory
1644                my $dir = $projects_list . ($filter ? "/$filter" : '');
1645                # remove the trailing "/"
1646                $dir =~ s!/+$!!;
1647                my $pfxlen = length("$dir");
1648                my $pfxdepth = ($dir =~ tr!/!!);
1649
1650                File::Find::find({
1651                        follow_fast => 1, # follow symbolic links
1652                        follow_skip => 2, # ignore duplicates
1653                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1654                        wanted => sub {
1655                                # skip project-list toplevel, if we get it.
1656                                return if (m!^[/.]$!);
1657                                # only directories can be git repositories
1658                                return unless (-d $_);
1659                                # don't traverse too deep (Find is super slow on os x)
1660                                if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
1661                                        $File::Find::prune = 1;
1662                                        return;
1663                                }
1664
1665                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1666                                # we check related file in $projectroot
1667                                if ($check_forks and $subdir =~ m#/.#) {
1668                                        $File::Find::prune = 1;
1669                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1670                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1671                                        $File::Find::prune = 1;
1672                                }
1673                        },
1674                }, "$dir");
1675
1676        } elsif (-f $projects_list) {
1677                # read from file(url-encoded):
1678                # 'git%2Fgit.git Linus+Torvalds'
1679                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1680                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1681                my %paths;
1682                open my ($fd), $projects_list or return;
1683        PROJECT:
1684                while (my $line = <$fd>) {
1685                        chomp $line;
1686                        my ($path, $owner) = split ' ', $line;
1687                        $path = unescape($path);
1688                        $owner = unescape($owner);
1689                        if (!defined $path) {
1690                                next;
1691                        }
1692                        if ($filter ne '') {
1693                                # looking for forks;
1694                                my $pfx = substr($path, 0, length($filter));
1695                                if ($pfx ne $filter) {
1696                                        next PROJECT;
1697                                }
1698                                my $sfx = substr($path, length($filter));
1699                                if ($sfx !~ /^\/.*\.git$/) {
1700                                        next PROJECT;
1701                                }
1702                        } elsif ($check_forks) {
1703                        PATH:
1704                                foreach my $filter (keys %paths) {
1705                                        # looking for forks;
1706                                        my $pfx = substr($path, 0, length($filter));
1707                                        if ($pfx ne $filter) {
1708                                                next PATH;
1709                                        }
1710                                        my $sfx = substr($path, length($filter));
1711                                        if ($sfx !~ /^\/.*\.git$/) {
1712                                                next PATH;
1713                                        }
1714                                        # is a fork, don't include it in
1715                                        # the list
1716                                        next PROJECT;
1717                                }
1718                        }
1719                        if (check_export_ok("$projectroot/$path")) {
1720                                my $pr = {
1721                                        path => $path,
1722                                        owner => to_utf8($owner),
1723                                };
1724                                push @list, $pr;
1725                                (my $forks_path = $path) =~ s/\.git$//;
1726                                $paths{$forks_path}++;
1727                        }
1728                }
1729                close $fd;
1730        }
1731        return @list;
1732}
1733
1734our $gitweb_project_owner = undef;
1735sub git_get_project_list_from_file {
1736
1737        return if (defined $gitweb_project_owner);
1738
1739        $gitweb_project_owner = {};
1740        # read from file (url-encoded):
1741        # 'git%2Fgit.git Linus+Torvalds'
1742        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1743        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1744        if (-f $projects_list) {
1745                open (my $fd , $projects_list);
1746                while (my $line = <$fd>) {
1747                        chomp $line;
1748                        my ($pr, $ow) = split ' ', $line;
1749                        $pr = unescape($pr);
1750                        $ow = unescape($ow);
1751                        $gitweb_project_owner->{$pr} = to_utf8($ow);
1752                }
1753                close $fd;
1754        }
1755}
1756
1757sub git_get_project_owner {
1758        my $project = shift;
1759        my $owner;
1760
1761        return undef unless $project;
1762        $git_dir = "$projectroot/$project";
1763
1764        if (!defined $gitweb_project_owner) {
1765                git_get_project_list_from_file();
1766        }
1767
1768        if (exists $gitweb_project_owner->{$project}) {
1769                $owner = $gitweb_project_owner->{$project};
1770        }
1771        if (!defined $owner){
1772                $owner = git_get_project_config('owner');
1773        }
1774        if (!defined $owner) {
1775                $owner = get_file_owner("$git_dir");
1776        }
1777
1778        return $owner;
1779}
1780
1781sub git_get_last_activity {
1782        my ($path) = @_;
1783        my $fd;
1784
1785        $git_dir = "$projectroot/$path";
1786        open($fd, "-|", git_cmd(), 'for-each-ref',
1787             '--format=%(committer)',
1788             '--sort=-committerdate',
1789             '--count=1',
1790             'refs/heads') or return;
1791        my $most_recent = <$fd>;
1792        close $fd or return;
1793        if (defined $most_recent &&
1794            $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1795                my $timestamp = $1;
1796                my $age = time - $timestamp;
1797                return ($age, age_string($age));
1798        }
1799        return (undef, undef);
1800}
1801
1802sub git_get_references {
1803        my $type = shift || "";
1804        my %refs;
1805        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1806        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1807        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1808                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1809                or return;
1810
1811        while (my $line = <$fd>) {
1812                chomp $line;
1813                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1814                        if (defined $refs{$1}) {
1815                                push @{$refs{$1}}, $2;
1816                        } else {
1817                                $refs{$1} = [ $2 ];
1818                        }
1819                }
1820        }
1821        close $fd or return;
1822        return \%refs;
1823}
1824
1825sub git_get_rev_name_tags {
1826        my $hash = shift || return undef;
1827
1828        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1829                or return;
1830        my $name_rev = <$fd>;
1831        close $fd;
1832
1833        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1834                return $1;
1835        } else {
1836                # catches also '$hash undefined' output
1837                return undef;
1838        }
1839}
1840
1841## ----------------------------------------------------------------------
1842## parse to hash functions
1843
1844sub parse_date {
1845        my $epoch = shift;
1846        my $tz = shift || "-0000";
1847
1848        my %date;
1849        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1850        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1851        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1852        $date{'hour'} = $hour;
1853        $date{'minute'} = $min;
1854        $date{'mday'} = $mday;
1855        $date{'day'} = $days[$wday];
1856        $date{'month'} = $months[$mon];
1857        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1858                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1859        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1860                             $mday, $months[$mon], $hour ,$min;
1861        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1862                             1900+$year, 1+$mon, $mday, $hour ,$min, $sec;
1863
1864        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1865        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1866        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1867        $date{'hour_local'} = $hour;
1868        $date{'minute_local'} = $min;
1869        $date{'tz_local'} = $tz;
1870        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1871                                  1900+$year, $mon+1, $mday,
1872                                  $hour, $min, $sec, $tz);
1873        return %date;
1874}
1875
1876sub parse_tag {
1877        my $tag_id = shift;
1878        my %tag;
1879        my @comment;
1880
1881        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1882        $tag{'id'} = $tag_id;
1883        while (my $line = <$fd>) {
1884                chomp $line;
1885                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1886                        $tag{'object'} = $1;
1887                } elsif ($line =~ m/^type (.+)$/) {
1888                        $tag{'type'} = $1;
1889                } elsif ($line =~ m/^tag (.+)$/) {
1890                        $tag{'name'} = $1;
1891                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1892                        $tag{'author'} = $1;
1893                        $tag{'epoch'} = $2;
1894                        $tag{'tz'} = $3;
1895                } elsif ($line =~ m/--BEGIN/) {
1896                        push @comment, $line;
1897                        last;
1898                } elsif ($line eq "") {
1899                        last;
1900                }
1901        }
1902        push @comment, <$fd>;
1903        $tag{'comment'} = \@comment;
1904        close $fd or return;
1905        if (!defined $tag{'name'}) {
1906                return
1907        };
1908        return %tag
1909}
1910
1911sub parse_commit_text {
1912        my ($commit_text, $withparents) = @_;
1913        my @commit_lines = split '\n', $commit_text;
1914        my %co;
1915
1916        pop @commit_lines; # Remove '\0'
1917
1918        if (! @commit_lines) {
1919                return;
1920        }
1921
1922        my $header = shift @commit_lines;
1923        if ($header !~ m/^[0-9a-fA-F]{40}/) {
1924                return;
1925        }
1926        ($co{'id'}, my @parents) = split ' ', $header;
1927        while (my $line = shift @commit_lines) {
1928                last if $line eq "\n";
1929                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1930                        $co{'tree'} = $1;
1931                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1932                        push @parents, $1;
1933                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1934                        $co{'author'} = $1;
1935                        $co{'author_epoch'} = $2;
1936                        $co{'author_tz'} = $3;
1937                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1938                                $co{'author_name'}  = $1;
1939                                $co{'author_email'} = $2;
1940                        } else {
1941                                $co{'author_name'} = $co{'author'};
1942                        }
1943                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1944                        $co{'committer'} = $1;
1945                        $co{'committer_epoch'} = $2;
1946                        $co{'committer_tz'} = $3;
1947                        $co{'committer_name'} = $co{'committer'};
1948                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1949                                $co{'committer_name'}  = $1;
1950                                $co{'committer_email'} = $2;
1951                        } else {
1952                                $co{'committer_name'} = $co{'committer'};
1953                        }
1954                }
1955        }
1956        if (!defined $co{'tree'}) {
1957                return;
1958        };
1959        $co{'parents'} = \@parents;
1960        $co{'parent'} = $parents[0];
1961
1962        foreach my $title (@commit_lines) {
1963                $title =~ s/^    //;
1964                if ($title ne "") {
1965                        $co{'title'} = chop_str($title, 80, 5);
1966                        # remove leading stuff of merges to make the interesting part visible
1967                        if (length($title) > 50) {
1968                                $title =~ s/^Automatic //;
1969                                $title =~ s/^merge (of|with) /Merge ... /i;
1970                                if (length($title) > 50) {
1971                                        $title =~ s/(http|rsync):\/\///;
1972                                }
1973                                if (length($title) > 50) {
1974                                        $title =~ s/(master|www|rsync)\.//;
1975                                }
1976                                if (length($title) > 50) {
1977                                        $title =~ s/kernel.org:?//;
1978                                }
1979                                if (length($title) > 50) {
1980                                        $title =~ s/\/pub\/scm//;
1981                                }
1982                        }
1983                        $co{'title_short'} = chop_str($title, 50, 5);
1984                        last;
1985                }
1986        }
1987        if ($co{'title'} eq "") {
1988                $co{'title'} = $co{'title_short'} = '(no commit message)';
1989        }
1990        # remove added spaces
1991        foreach my $line (@commit_lines) {
1992                $line =~ s/^    //;
1993        }
1994        $co{'comment'} = \@commit_lines;
1995
1996        my $age = time - $co{'committer_epoch'};
1997        $co{'age'} = $age;
1998        $co{'age_string'} = age_string($age);
1999        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
2000        if ($age > 60*60*24*7*2) {
2001                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
2002                $co{'age_string_age'} = $co{'age_string'};
2003        } else {
2004                $co{'age_string_date'} = $co{'age_string'};
2005                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
2006        }
2007        return %co;
2008}
2009
2010sub parse_commit {
2011        my ($commit_id) = @_;
2012        my %co;
2013
2014        local $/ = "\0";
2015
2016        open my $fd, "-|", git_cmd(), "rev-list",
2017                "--parents",
2018                "--header",
2019                "--max-count=1",
2020                $commit_id,
2021                "--",
2022                or die_error(undef, "Open git-rev-list failed");
2023        %co = parse_commit_text(<$fd>, 1);
2024        close $fd;
2025
2026        return %co;
2027}
2028
2029sub parse_commits {
2030        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
2031        my @cos;
2032
2033        $maxcount ||= 1;
2034        $skip ||= 0;
2035
2036        local $/ = "\0";
2037
2038        open my $fd, "-|", git_cmd(), "rev-list",
2039                "--header",
2040                ($arg ? ($arg) : ()),
2041                ("--max-count=" . $maxcount),
2042                ("--skip=" . $skip),
2043                @extra_options,
2044                $commit_id,
2045                "--",
2046                ($filename ? ($filename) : ())
2047                or die_error(undef, "Open git-rev-list failed");
2048        while (my $line = <$fd>) {
2049                my %co = parse_commit_text($line);
2050                push @cos, \%co;
2051        }
2052        close $fd;
2053
2054        return wantarray ? @cos : \@cos;
2055}
2056
2057# parse ref from ref_file, given by ref_id, with given type
2058sub parse_ref {
2059        my $ref_file = shift;
2060        my $ref_id = shift;
2061        my $type = shift || git_get_type($ref_id);
2062        my %ref_item;
2063
2064        $ref_item{'type'} = $type;
2065        $ref_item{'id'} = $ref_id;
2066        $ref_item{'epoch'} = 0;
2067        $ref_item{'age'} = "unknown";
2068        if ($type eq "tag") {
2069                my %tag = parse_tag($ref_id);
2070                $ref_item{'comment'} = $tag{'comment'};
2071                if ($tag{'type'} eq "commit") {
2072                        my %co = parse_commit($tag{'object'});
2073                        $ref_item{'epoch'} = $co{'committer_epoch'};
2074                        $ref_item{'age'} = $co{'age_string'};
2075                } elsif (defined($tag{'epoch'})) {
2076                        my $age = time - $tag{'epoch'};
2077                        $ref_item{'epoch'} = $tag{'epoch'};
2078                        $ref_item{'age'} = age_string($age);
2079                }
2080                $ref_item{'reftype'} = $tag{'type'};
2081                $ref_item{'name'} = $tag{'name'};
2082                $ref_item{'refid'} = $tag{'object'};
2083        } elsif ($type eq "commit"){
2084                my %co = parse_commit($ref_id);
2085                $ref_item{'reftype'} = "commit";
2086                $ref_item{'name'} = $ref_file;
2087                $ref_item{'title'} = $co{'title'};
2088                $ref_item{'refid'} = $ref_id;
2089                $ref_item{'epoch'} = $co{'committer_epoch'};
2090                $ref_item{'age'} = $co{'age_string'};
2091        } else {
2092                $ref_item{'reftype'} = $type;
2093                $ref_item{'name'} = $ref_file;
2094                $ref_item{'refid'} = $ref_id;
2095        }
2096
2097        return %ref_item;
2098}
2099
2100# parse line of git-diff-tree "raw" output
2101sub parse_difftree_raw_line {
2102        my $line = shift;
2103        my %res;
2104
2105        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
2106        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
2107        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
2108                $res{'from_mode'} = $1;
2109                $res{'to_mode'} = $2;
2110                $res{'from_id'} = $3;
2111                $res{'to_id'} = $4;
2112                $res{'status'} = $res{'status_str'} = $5;
2113                $res{'similarity'} = $6;
2114                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
2115                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
2116                } else {
2117                        $res{'from_file'} = $res{'to_file'} = $res{'file'} = unquote($7);
2118                }
2119        }
2120        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
2121        # combined diff (for merge commit)
2122        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
2123                $res{'nparents'}  = length($1);
2124                $res{'from_mode'} = [ split(' ', $2) ];
2125                $res{'to_mode'} = pop @{$res{'from_mode'}};
2126                $res{'from_id'} = [ split(' ', $3) ];
2127                $res{'to_id'} = pop @{$res{'from_id'}};
2128                $res{'status_str'} = $4;
2129                $res{'status'} = [ split('', $4) ];
2130                $res{'to_file'} = unquote($5);
2131        }
2132        # 'c512b523472485aef4fff9e57b229d9d243c967f'
2133        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
2134                $res{'commit'} = $1;
2135        }
2136
2137        return wantarray ? %res : \%res;
2138}
2139
2140# wrapper: return parsed line of git-diff-tree "raw" output
2141# (the argument might be raw line, or parsed info)
2142sub parsed_difftree_line {
2143        my $line_or_ref = shift;
2144
2145        if (ref($line_or_ref) eq "HASH") {
2146                # pre-parsed (or generated by hand)
2147                return $line_or_ref;
2148        } else {
2149                return parse_difftree_raw_line($line_or_ref);
2150        }
2151}
2152
2153# parse line of git-ls-tree output
2154sub parse_ls_tree_line ($;%) {
2155        my $line = shift;
2156        my %opts = @_;
2157        my %res;
2158
2159        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
2160        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
2161
2162        $res{'mode'} = $1;
2163        $res{'type'} = $2;
2164        $res{'hash'} = $3;
2165        if ($opts{'-z'}) {
2166                $res{'name'} = $4;
2167        } else {
2168                $res{'name'} = unquote($4);
2169        }
2170
2171        return wantarray ? %res : \%res;
2172}
2173
2174# generates _two_ hashes, references to which are passed as 2 and 3 argument
2175sub parse_from_to_diffinfo {
2176        my ($diffinfo, $from, $to, @parents) = @_;
2177
2178        if ($diffinfo->{'nparents'}) {
2179                # combined diff
2180                $from->{'file'} = [];
2181                $from->{'href'} = [];
2182                fill_from_file_info($diffinfo, @parents)
2183                        unless exists $diffinfo->{'from_file'};
2184                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2185                        $from->{'file'}[$i] =
2186                                defined $diffinfo->{'from_file'}[$i] ?
2187                                        $diffinfo->{'from_file'}[$i] :
2188                                        $diffinfo->{'to_file'};
2189                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2190                                $from->{'href'}[$i] = href(action=>"blob",
2191                                                           hash_base=>$parents[$i],
2192                                                           hash=>$diffinfo->{'from_id'}[$i],
2193                                                           file_name=>$from->{'file'}[$i]);
2194                        } else {
2195                                $from->{'href'}[$i] = undef;
2196                        }
2197                }
2198        } else {
2199                # ordinary (not combined) diff
2200                $from->{'file'} = $diffinfo->{'from_file'};
2201                if ($diffinfo->{'status'} ne "A") { # not new (added) file
2202                        $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2203                                               hash=>$diffinfo->{'from_id'},
2204                                               file_name=>$from->{'file'});
2205                } else {
2206                        delete $from->{'href'};
2207                }
2208        }
2209
2210        $to->{'file'} = $diffinfo->{'to_file'};
2211        if (!is_deleted($diffinfo)) { # file exists in result
2212                $to->{'href'} = href(action=>"blob", hash_base=>$hash,
2213                                     hash=>$diffinfo->{'to_id'},
2214                                     file_name=>$to->{'file'});
2215        } else {
2216                delete $to->{'href'};
2217        }
2218}
2219
2220## ......................................................................
2221## parse to array of hashes functions
2222
2223sub git_get_heads_list {
2224        my $limit = shift;
2225        my @headslist;
2226
2227        open my $fd, '-|', git_cmd(), 'for-each-ref',
2228                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
2229                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
2230                'refs/heads'
2231                or return;
2232        while (my $line = <$fd>) {
2233                my %ref_item;
2234
2235                chomp $line;
2236                my ($refinfo, $committerinfo) = split(/\0/, $line);
2237                my ($hash, $name, $title) = split(' ', $refinfo, 3);
2238                my ($committer, $epoch, $tz) =
2239                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
2240                $ref_item{'fullname'}  = $name;
2241                $name =~ s!^refs/heads/!!;
2242
2243                $ref_item{'name'}  = $name;
2244                $ref_item{'id'}    = $hash;
2245                $ref_item{'title'} = $title || '(no commit message)';
2246                $ref_item{'epoch'} = $epoch;
2247                if ($epoch) {
2248                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2249                } else {
2250                        $ref_item{'age'} = "unknown";
2251                }
2252
2253                push @headslist, \%ref_item;
2254        }
2255        close $fd;
2256
2257        return wantarray ? @headslist : \@headslist;
2258}
2259
2260sub git_get_tags_list {
2261        my $limit = shift;
2262        my @tagslist;
2263
2264        open my $fd, '-|', git_cmd(), 'for-each-ref',
2265                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
2266                '--format=%(objectname) %(objecttype) %(refname) '.
2267                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
2268                'refs/tags'
2269                or return;
2270        while (my $line = <$fd>) {
2271                my %ref_item;
2272
2273                chomp $line;
2274                my ($refinfo, $creatorinfo) = split(/\0/, $line);
2275                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
2276                my ($creator, $epoch, $tz) =
2277                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
2278                $ref_item{'fullname'} = $name;
2279                $name =~ s!^refs/tags/!!;
2280
2281                $ref_item{'type'} = $type;
2282                $ref_item{'id'} = $id;
2283                $ref_item{'name'} = $name;
2284                if ($type eq "tag") {
2285                        $ref_item{'subject'} = $title;
2286                        $ref_item{'reftype'} = $reftype;
2287                        $ref_item{'refid'}   = $refid;
2288                } else {
2289                        $ref_item{'reftype'} = $type;
2290                        $ref_item{'refid'}   = $id;
2291                }
2292
2293                if ($type eq "tag" || $type eq "commit") {
2294                        $ref_item{'epoch'} = $epoch;
2295                        if ($epoch) {
2296                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2297                        } else {
2298                                $ref_item{'age'} = "unknown";
2299                        }
2300                }
2301
2302                push @tagslist, \%ref_item;
2303        }
2304        close $fd;
2305
2306        return wantarray ? @tagslist : \@tagslist;
2307}
2308
2309## ----------------------------------------------------------------------
2310## filesystem-related functions
2311
2312sub get_file_owner {
2313        my $path = shift;
2314
2315        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
2316        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
2317        if (!defined $gcos) {
2318                return undef;
2319        }
2320        my $owner = $gcos;
2321        $owner =~ s/[,;].*$//;
2322        return to_utf8($owner);
2323}
2324
2325## ......................................................................
2326## mimetype related functions
2327
2328sub mimetype_guess_file {
2329        my $filename = shift;
2330        my $mimemap = shift;
2331        -r $mimemap or return undef;
2332
2333        my %mimemap;
2334        open(MIME, $mimemap) or return undef;
2335        while (<MIME>) {
2336                next if m/^#/; # skip comments
2337                my ($mime, $exts) = split(/\t+/);
2338                if (defined $exts) {
2339                        my @exts = split(/\s+/, $exts);
2340                        foreach my $ext (@exts) {
2341                                $mimemap{$ext} = $mime;
2342                        }
2343                }
2344        }
2345        close(MIME);
2346
2347        $filename =~ /\.([^.]*)$/;
2348        return $mimemap{$1};
2349}
2350
2351sub mimetype_guess {
2352        my $filename = shift;
2353        my $mime;
2354        $filename =~ /\./ or return undef;
2355
2356        if ($mimetypes_file) {
2357                my $file = $mimetypes_file;
2358                if ($file !~ m!^/!) { # if it is relative path
2359                        # it is relative to project
2360                        $file = "$projectroot/$project/$file";
2361                }
2362                $mime = mimetype_guess_file($filename, $file);
2363        }
2364        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2365        return $mime;
2366}
2367
2368sub blob_mimetype {
2369        my $fd = shift;
2370        my $filename = shift;
2371
2372        if ($filename) {
2373                my $mime = mimetype_guess($filename);
2374                $mime and return $mime;
2375        }
2376
2377        # just in case
2378        return $default_blob_plain_mimetype unless $fd;
2379
2380        if (-T $fd) {
2381                return 'text/plain' .
2382                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2383        } elsif (! $filename) {
2384                return 'application/octet-stream';
2385        } elsif ($filename =~ m/\.png$/i) {
2386                return 'image/png';
2387        } elsif ($filename =~ m/\.gif$/i) {
2388                return 'image/gif';
2389        } elsif ($filename =~ m/\.jpe?g$/i) {
2390                return 'image/jpeg';
2391        } else {
2392                return 'application/octet-stream';
2393        }
2394}
2395
2396## ======================================================================
2397## functions printing HTML: header, footer, error page
2398
2399sub git_header_html {
2400        my $status = shift || "200 OK";
2401        my $expires = shift;
2402
2403        my $title = "$site_name";
2404        if (defined $project) {
2405                $title .= " - " . to_utf8($project);
2406                if (defined $action) {
2407                        $title .= "/$action";
2408                        if (defined $file_name) {
2409                                $title .= " - " . esc_path($file_name);
2410                                if ($action eq "tree" && $file_name !~ m|/$|) {
2411                                        $title .= "/";
2412                                }
2413                        }
2414                }
2415        }
2416        my $content_type;
2417        # require explicit support from the UA if we are to send the page as
2418        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2419        # we have to do this because MSIE sometimes globs '*/*', pretending to
2420        # support xhtml+xml but choking when it gets what it asked for.
2421        if (defined $cgi->http('HTTP_ACCEPT') &&
2422            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2423            $cgi->Accept('application/xhtml+xml') != 0) {
2424                $content_type = 'application/xhtml+xml';
2425        } else {
2426                $content_type = 'text/html';
2427        }
2428        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2429                           -status=> $status, -expires => $expires);
2430        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2431        print <<EOF;
2432<?xml version="1.0" encoding="utf-8"?>
2433<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2434<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2435<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2436<!-- git core binaries version $git_version -->
2437<head>
2438<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2439<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2440<meta name="robots" content="index, nofollow"/>
2441<title>$title</title>
2442EOF
2443# print out each stylesheet that exist
2444        if (defined $stylesheet) {
2445#provides backwards capability for those people who define style sheet in a config file
2446                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2447        } else {
2448                foreach my $stylesheet (@stylesheets) {
2449                        next unless $stylesheet;
2450                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2451                }
2452        }
2453        if (defined $project) {
2454                printf('<link rel="alternate" title="%s log RSS feed" '.
2455                       'href="%s" type="application/rss+xml" />'."\n",
2456                       esc_param($project), href(action=>"rss"));
2457                printf('<link rel="alternate" title="%s log RSS feed (no merges)" '.
2458                       'href="%s" type="application/rss+xml" />'."\n",
2459                       esc_param($project), href(action=>"rss",
2460                                                 extra_options=>"--no-merges"));
2461                printf('<link rel="alternate" title="%s log Atom feed" '.
2462                       'href="%s" type="application/atom+xml" />'."\n",
2463                       esc_param($project), href(action=>"atom"));
2464                printf('<link rel="alternate" title="%s log Atom feed (no merges)" '.
2465                       'href="%s" type="application/atom+xml" />'."\n",
2466                       esc_param($project), href(action=>"atom",
2467                                                 extra_options=>"--no-merges"));
2468        } else {
2469                printf('<link rel="alternate" title="%s projects list" '.
2470                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
2471                       $site_name, href(project=>undef, action=>"project_index"));
2472                printf('<link rel="alternate" title="%s projects feeds" '.
2473                       'href="%s" type="text/x-opml"/>'."\n",
2474                       $site_name, href(project=>undef, action=>"opml"));
2475        }
2476        if (defined $favicon) {
2477                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
2478        }
2479
2480        print "</head>\n" .
2481              "<body>\n";
2482
2483        if (-f $site_header) {
2484                open (my $fd, $site_header);
2485                print <$fd>;
2486                close $fd;
2487        }
2488
2489        print "<div class=\"page_header\">\n" .
2490              $cgi->a({-href => esc_url($logo_url),
2491                       -title => $logo_label},
2492                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2493        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2494        if (defined $project) {
2495                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2496                if (defined $action) {
2497                        print " / $action";
2498                }
2499                print "\n";
2500        }
2501        print "</div>\n";
2502
2503        my ($have_search) = gitweb_check_feature('search');
2504        if ((defined $project) && ($have_search)) {
2505                if (!defined $searchtext) {
2506                        $searchtext = "";
2507                }
2508                my $search_hash;
2509                if (defined $hash_base) {
2510                        $search_hash = $hash_base;
2511                } elsif (defined $hash) {
2512                        $search_hash = $hash;
2513                } else {
2514                        $search_hash = "HEAD";
2515                }
2516                my $action = $my_uri;
2517                my ($use_pathinfo) = gitweb_check_feature('pathinfo');
2518                if ($use_pathinfo) {
2519                        $action .= "/$project";
2520                } else {
2521                        $cgi->param("p", $project);
2522                }
2523                $cgi->param("a", "search");
2524                $cgi->param("h", $search_hash);
2525                print $cgi->startform(-method => "get", -action => $action) .
2526                      "<div class=\"search\">\n" .
2527                      (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
2528                      $cgi->hidden(-name => "a") . "\n" .
2529                      $cgi->hidden(-name => "h") . "\n" .
2530                      $cgi->popup_menu(-name => 'st', -default => 'commit',
2531                                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2532                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2533                      " search:\n",
2534                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2535                      "</div>" .
2536                      $cgi->end_form() . "\n";
2537        }
2538}
2539
2540sub git_footer_html {
2541        print "<div class=\"page_footer\">\n";
2542        if (defined $project) {
2543                my $descr = git_get_project_description($project);
2544                if (defined $descr) {
2545                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2546                }
2547                print $cgi->a({-href => href(action=>"rss"),
2548                              -class => "rss_logo"}, "RSS") . " ";
2549                print $cgi->a({-href => href(action=>"atom"),
2550                              -class => "rss_logo"}, "Atom") . "\n";
2551        } else {
2552                print $cgi->a({-href => href(project=>undef, action=>"opml"),
2553                              -class => "rss_logo"}, "OPML") . " ";
2554                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2555                              -class => "rss_logo"}, "TXT") . "\n";
2556        }
2557        print "</div>\n" ;
2558
2559        if (-f $site_footer) {
2560                open (my $fd, $site_footer);
2561                print <$fd>;
2562                close $fd;
2563        }
2564
2565        print "</body>\n" .
2566              "</html>";
2567}
2568
2569sub die_error {
2570        my $status = shift || "403 Forbidden";
2571        my $error = shift || "Malformed query, file missing or permission denied";
2572
2573        git_header_html($status);
2574        print <<EOF;
2575<div class="page_body">
2576<br /><br />
2577$status - $error
2578<br />
2579</div>
2580EOF
2581        git_footer_html();
2582        exit;
2583}
2584
2585## ----------------------------------------------------------------------
2586## functions printing or outputting HTML: navigation
2587
2588sub git_print_page_nav {
2589        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2590        $extra = '' if !defined $extra; # pager or formats
2591
2592        my @navs = qw(summary shortlog log commit commitdiff tree);
2593        if ($suppress) {
2594                @navs = grep { $_ ne $suppress } @navs;
2595        }
2596
2597        my %arg = map { $_ => {action=>$_} } @navs;
2598        if (defined $head) {
2599                for (qw(commit commitdiff)) {
2600                        $arg{$_}{'hash'} = $head;
2601                }
2602                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2603                        for (qw(shortlog log)) {
2604                                $arg{$_}{'hash'} = $head;
2605                        }
2606                }
2607        }
2608        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2609        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2610
2611        print "<div class=\"page_nav\">\n" .
2612                (join " | ",
2613                 map { $_ eq $current ?
2614                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2615                 } @navs);
2616        print "<br/>\n$extra<br/>\n" .
2617              "</div>\n";
2618}
2619
2620sub format_paging_nav {
2621        my ($action, $hash, $head, $page, $nrevs) = @_;
2622        my $paging_nav;
2623
2624
2625        if ($hash ne $head || $page) {
2626                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2627        } else {
2628                $paging_nav .= "HEAD";
2629        }
2630
2631        if ($page > 0) {
2632                $paging_nav .= " &sdot; " .
2633                        $cgi->a({-href => href(-replay=>1, page=>$page-1),
2634                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2635        } else {
2636                $paging_nav .= " &sdot; prev";
2637        }
2638
2639        if ($nrevs >= (100 * ($page+1)-1)) {
2640                $paging_nav .= " &sdot; " .
2641                        $cgi->a({-href => href(-replay=>1, page=>$page+1),
2642                                 -accesskey => "n", -title => "Alt-n"}, "next");
2643        } else {
2644                $paging_nav .= " &sdot; next";
2645        }
2646
2647        return $paging_nav;
2648}
2649
2650## ......................................................................
2651## functions printing or outputting HTML: div
2652
2653sub git_print_header_div {
2654        my ($action, $title, $hash, $hash_base) = @_;
2655        my %args = ();
2656
2657        $args{'action'} = $action;
2658        $args{'hash'} = $hash if $hash;
2659        $args{'hash_base'} = $hash_base if $hash_base;
2660
2661        print "<div class=\"header\">\n" .
2662              $cgi->a({-href => href(%args), -class => "title"},
2663              $title ? $title : $action) .
2664              "\n</div>\n";
2665}
2666
2667#sub git_print_authorship (\%) {
2668sub git_print_authorship {
2669        my $co = shift;
2670
2671        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2672        print "<div class=\"author_date\">" .
2673              esc_html($co->{'author_name'}) .
2674              " [$ad{'rfc2822'}";
2675        if ($ad{'hour_local'} < 6) {
2676                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2677                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2678        } else {
2679                printf(" (%02d:%02d %s)",
2680                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2681        }
2682        print "]</div>\n";
2683}
2684
2685sub git_print_page_path {
2686        my $name = shift;
2687        my $type = shift;
2688        my $hb = shift;
2689
2690
2691        print "<div class=\"page_path\">";
2692        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2693                      -title => 'tree root'}, to_utf8("[$project]"));
2694        print " / ";
2695        if (defined $name) {
2696                my @dirname = split '/', $name;
2697                my $basename = pop @dirname;
2698                my $fullname = '';
2699
2700                foreach my $dir (@dirname) {
2701                        $fullname .= ($fullname ? '/' : '') . $dir;
2702                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2703                                                     hash_base=>$hb),
2704                                      -title => $fullname}, esc_path($dir));
2705                        print " / ";
2706                }
2707                if (defined $type && $type eq 'blob') {
2708                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2709                                                     hash_base=>$hb),
2710                                      -title => $name}, esc_path($basename));
2711                } elsif (defined $type && $type eq 'tree') {
2712                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2713                                                     hash_base=>$hb),
2714                                      -title => $name}, esc_path($basename));
2715                        print " / ";
2716                } else {
2717                        print esc_path($basename);
2718                }
2719        }
2720        print "<br/></div>\n";
2721}
2722
2723# sub git_print_log (\@;%) {
2724sub git_print_log ($;%) {
2725        my $log = shift;
2726        my %opts = @_;
2727
2728        if ($opts{'-remove_title'}) {
2729                # remove title, i.e. first line of log
2730                shift @$log;
2731        }
2732        # remove leading empty lines
2733        while (defined $log->[0] && $log->[0] eq "") {
2734                shift @$log;
2735        }
2736
2737        # print log
2738        my $signoff = 0;
2739        my $empty = 0;
2740        foreach my $line (@$log) {
2741                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2742                        $signoff = 1;
2743                        $empty = 0;
2744                        if (! $opts{'-remove_signoff'}) {
2745                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2746                                next;
2747                        } else {
2748                                # remove signoff lines
2749                                next;
2750                        }
2751                } else {
2752                        $signoff = 0;
2753                }
2754
2755                # print only one empty line
2756                # do not print empty line after signoff
2757                if ($line eq "") {
2758                        next if ($empty || $signoff);
2759                        $empty = 1;
2760                } else {
2761                        $empty = 0;
2762                }
2763
2764                print format_log_line_html($line) . "<br/>\n";
2765        }
2766
2767        if ($opts{'-final_empty_line'}) {
2768                # end with single empty line
2769                print "<br/>\n" unless $empty;
2770        }
2771}
2772
2773# return link target (what link points to)
2774sub git_get_link_target {
2775        my $hash = shift;
2776        my $link_target;
2777
2778        # read link
2779        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2780                or return;
2781        {
2782                local $/;
2783                $link_target = <$fd>;
2784        }
2785        close $fd
2786                or return;
2787
2788        return $link_target;
2789}
2790
2791# given link target, and the directory (basedir) the link is in,
2792# return target of link relative to top directory (top tree);
2793# return undef if it is not possible (including absolute links).
2794sub normalize_link_target {
2795        my ($link_target, $basedir, $hash_base) = @_;
2796
2797        # we can normalize symlink target only if $hash_base is provided
2798        return unless $hash_base;
2799
2800        # absolute symlinks (beginning with '/') cannot be normalized
2801        return if (substr($link_target, 0, 1) eq '/');
2802
2803        # normalize link target to path from top (root) tree (dir)
2804        my $path;
2805        if ($basedir) {
2806                $path = $basedir . '/' . $link_target;
2807        } else {
2808                # we are in top (root) tree (dir)
2809                $path = $link_target;
2810        }
2811
2812        # remove //, /./, and /../
2813        my @path_parts;
2814        foreach my $part (split('/', $path)) {
2815                # discard '.' and ''
2816                next if (!$part || $part eq '.');
2817                # handle '..'
2818                if ($part eq '..') {
2819                        if (@path_parts) {
2820                                pop @path_parts;
2821                        } else {
2822                                # link leads outside repository (outside top dir)
2823                                return;
2824                        }
2825                } else {
2826                        push @path_parts, $part;
2827                }
2828        }
2829        $path = join('/', @path_parts);
2830
2831        return $path;
2832}
2833
2834# print tree entry (row of git_tree), but without encompassing <tr> element
2835sub git_print_tree_entry {
2836        my ($t, $basedir, $hash_base, $have_blame) = @_;
2837
2838        my %base_key = ();
2839        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2840
2841        # The format of a table row is: mode list link.  Where mode is
2842        # the mode of the entry, list is the name of the entry, an href,
2843        # and link is the action links of the entry.
2844
2845        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2846        if ($t->{'type'} eq "blob") {
2847                print "<td class=\"list\">" .
2848                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2849                                               file_name=>"$basedir$t->{'name'}", %base_key),
2850                                -class => "list"}, esc_path($t->{'name'}));
2851                if (S_ISLNK(oct $t->{'mode'})) {
2852                        my $link_target = git_get_link_target($t->{'hash'});
2853                        if ($link_target) {
2854                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2855                                if (defined $norm_target) {
2856                                        print " -> " .
2857                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2858                                                                     file_name=>$norm_target),
2859                                                       -title => $norm_target}, esc_path($link_target));
2860                                } else {
2861                                        print " -> " . esc_path($link_target);
2862                                }
2863                        }
2864                }
2865                print "</td>\n";
2866                print "<td class=\"link\">";
2867                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2868                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2869                              "blob");
2870                if ($have_blame) {
2871                        print " | " .
2872                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2873                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2874                                      "blame");
2875                }
2876                if (defined $hash_base) {
2877                        print " | " .
2878                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2879                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2880                                      "history");
2881                }
2882                print " | " .
2883                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2884                                               file_name=>"$basedir$t->{'name'}")},
2885                                "raw");
2886                print "</td>\n";
2887
2888        } elsif ($t->{'type'} eq "tree") {
2889                print "<td class=\"list\">";
2890                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2891                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2892                              esc_path($t->{'name'}));
2893                print "</td>\n";
2894                print "<td class=\"link\">";
2895                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2896                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2897                              "tree");
2898                if (defined $hash_base) {
2899                        print " | " .
2900                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2901                                                     file_name=>"$basedir$t->{'name'}")},
2902                                      "history");
2903                }
2904                print "</td>\n";
2905        } else {
2906                # unknown object: we can only present history for it
2907                # (this includes 'commit' object, i.e. submodule support)
2908                print "<td class=\"list\">" .
2909                      esc_path($t->{'name'}) .
2910                      "</td>\n";
2911                print "<td class=\"link\">";
2912                if (defined $hash_base) {
2913                        print $cgi->a({-href => href(action=>"history",
2914                                                     hash_base=>$hash_base,
2915                                                     file_name=>"$basedir$t->{'name'}")},
2916                                      "history");
2917                }
2918                print "</td>\n";
2919        }
2920}
2921
2922## ......................................................................
2923## functions printing large fragments of HTML
2924
2925# get pre-image filenames for merge (combined) diff
2926sub fill_from_file_info {
2927        my ($diff, @parents) = @_;
2928
2929        $diff->{'from_file'} = [ ];
2930        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2931        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2932                if ($diff->{'status'}[$i] eq 'R' ||
2933                    $diff->{'status'}[$i] eq 'C') {
2934                        $diff->{'from_file'}[$i] =
2935                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2936                }
2937        }
2938
2939        return $diff;
2940}
2941
2942# is current raw difftree line of file deletion
2943sub is_deleted {
2944        my $diffinfo = shift;
2945
2946        return $diffinfo->{'status_str'} =~ /D/;
2947}
2948
2949# does patch correspond to [previous] difftree raw line
2950# $diffinfo  - hashref of parsed raw diff format
2951# $patchinfo - hashref of parsed patch diff format
2952#              (the same keys as in $diffinfo)
2953sub is_patch_split {
2954        my ($diffinfo, $patchinfo) = @_;
2955
2956        return defined $diffinfo && defined $patchinfo
2957                && $diffinfo->{'to_file'} eq $patchinfo->{'to_file'};
2958}
2959
2960
2961sub git_difftree_body {
2962        my ($difftree, $hash, @parents) = @_;
2963        my ($parent) = $parents[0];
2964        my ($have_blame) = gitweb_check_feature('blame');
2965        print "<div class=\"list_head\">\n";
2966        if ($#{$difftree} > 10) {
2967                print(($#{$difftree} + 1) . " files changed:\n");
2968        }
2969        print "</div>\n";
2970
2971        print "<table class=\"" .
2972              (@parents > 1 ? "combined " : "") .
2973              "diff_tree\">\n";
2974
2975        # header only for combined diff in 'commitdiff' view
2976        my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
2977        if ($has_header) {
2978                # table header
2979                print "<thead><tr>\n" .
2980                       "<th></th><th></th>\n"; # filename, patchN link
2981                for (my $i = 0; $i < @parents; $i++) {
2982                        my $par = $parents[$i];
2983                        print "<th>" .
2984                              $cgi->a({-href => href(action=>"commitdiff",
2985                                                     hash=>$hash, hash_parent=>$par),
2986                                       -title => 'commitdiff to parent number ' .
2987                                                  ($i+1) . ': ' . substr($par,0,7)},
2988                                      $i+1) .
2989                              "&nbsp;</th>\n";
2990                }
2991                print "</tr></thead>\n<tbody>\n";
2992        }
2993
2994        my $alternate = 1;
2995        my $patchno = 0;
2996        foreach my $line (@{$difftree}) {
2997                my $diff = parsed_difftree_line($line);
2998
2999                if ($alternate) {
3000                        print "<tr class=\"dark\">\n";
3001                } else {
3002                        print "<tr class=\"light\">\n";
3003                }
3004                $alternate ^= 1;
3005
3006                if (exists $diff->{'nparents'}) { # combined diff
3007
3008                        fill_from_file_info($diff, @parents)
3009                                unless exists $diff->{'from_file'};
3010
3011                        if (!is_deleted($diff)) {
3012                                # file exists in the result (child) commit
3013                                print "<td>" .
3014                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3015                                                             file_name=>$diff->{'to_file'},
3016                                                             hash_base=>$hash),
3017                                              -class => "list"}, esc_path($diff->{'to_file'})) .
3018                                      "</td>\n";
3019                        } else {
3020                                print "<td>" .
3021                                      esc_path($diff->{'to_file'}) .
3022                                      "</td>\n";
3023                        }
3024
3025                        if ($action eq 'commitdiff') {
3026                                # link to patch
3027                                $patchno++;
3028                                print "<td class=\"link\">" .
3029                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
3030                                      " | " .
3031                                      "</td>\n";
3032                        }
3033
3034                        my $has_history = 0;
3035                        my $not_deleted = 0;
3036                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
3037                                my $hash_parent = $parents[$i];
3038                                my $from_hash = $diff->{'from_id'}[$i];
3039                                my $from_path = $diff->{'from_file'}[$i];
3040                                my $status = $diff->{'status'}[$i];
3041
3042                                $has_history ||= ($status ne 'A');
3043                                $not_deleted ||= ($status ne 'D');
3044
3045                                if ($status eq 'A') {
3046                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
3047                                } elsif ($status eq 'D') {
3048                                        print "<td class=\"link\">" .
3049                                              $cgi->a({-href => href(action=>"blob",
3050                                                                     hash_base=>$hash,
3051                                                                     hash=>$from_hash,
3052                                                                     file_name=>$from_path)},
3053                                                      "blob" . ($i+1)) .
3054                                              " | </td>\n";
3055                                } else {
3056                                        if ($diff->{'to_id'} eq $from_hash) {
3057                                                print "<td class=\"link nochange\">";
3058                                        } else {
3059                                                print "<td class=\"link\">";
3060                                        }
3061                                        print $cgi->a({-href => href(action=>"blobdiff",
3062                                                                     hash=>$diff->{'to_id'},
3063                                                                     hash_parent=>$from_hash,
3064                                                                     hash_base=>$hash,
3065                                                                     hash_parent_base=>$hash_parent,
3066                                                                     file_name=>$diff->{'to_file'},
3067                                                                     file_parent=>$from_path)},
3068                                                      "diff" . ($i+1)) .
3069                                              " | </td>\n";
3070                                }
3071                        }
3072
3073                        print "<td class=\"link\">";
3074                        if ($not_deleted) {
3075                                print $cgi->a({-href => href(action=>"blob",
3076                                                             hash=>$diff->{'to_id'},
3077                                                             file_name=>$diff->{'to_file'},
3078                                                             hash_base=>$hash)},
3079                                              "blob");
3080                                print " | " if ($has_history);
3081                        }
3082                        if ($has_history) {
3083                                print $cgi->a({-href => href(action=>"history",
3084                                                             file_name=>$diff->{'to_file'},
3085                                                             hash_base=>$hash)},
3086                                              "history");
3087                        }
3088                        print "</td>\n";
3089
3090                        print "</tr>\n";
3091                        next; # instead of 'else' clause, to avoid extra indent
3092                }
3093                # else ordinary diff
3094
3095                my ($to_mode_oct, $to_mode_str, $to_file_type);
3096                my ($from_mode_oct, $from_mode_str, $from_file_type);
3097                if ($diff->{'to_mode'} ne ('0' x 6)) {
3098                        $to_mode_oct = oct $diff->{'to_mode'};
3099                        if (S_ISREG($to_mode_oct)) { # only for regular file
3100                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
3101                        }
3102                        $to_file_type = file_type($diff->{'to_mode'});
3103                }
3104                if ($diff->{'from_mode'} ne ('0' x 6)) {
3105                        $from_mode_oct = oct $diff->{'from_mode'};
3106                        if (S_ISREG($to_mode_oct)) { # only for regular file
3107                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
3108                        }
3109                        $from_file_type = file_type($diff->{'from_mode'});
3110                }
3111
3112                if ($diff->{'status'} eq "A") { # created
3113                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
3114                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
3115                        $mode_chng   .= "]</span>";
3116                        print "<td>";
3117                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3118                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
3119                                      -class => "list"}, esc_path($diff->{'file'}));
3120                        print "</td>\n";
3121                        print "<td>$mode_chng</td>\n";
3122                        print "<td class=\"link\">";
3123                        if ($action eq 'commitdiff') {
3124                                # link to patch
3125                                $patchno++;
3126                                print $cgi->a({-href => "#patch$patchno"}, "patch");
3127                                print " | ";
3128                        }
3129                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3130                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
3131                                      "blob");
3132                        print "</td>\n";
3133
3134                } elsif ($diff->{'status'} eq "D") { # deleted
3135                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
3136                        print "<td>";
3137                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3138                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
3139                                       -class => "list"}, esc_path($diff->{'file'}));
3140                        print "</td>\n";
3141                        print "<td>$mode_chng</td>\n";
3142                        print "<td class=\"link\">";
3143                        if ($action eq 'commitdiff') {
3144                                # link to patch
3145                                $patchno++;
3146                                print $cgi->a({-href => "#patch$patchno"}, "patch");
3147                                print " | ";
3148                        }
3149                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3150                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
3151                                      "blob") . " | ";
3152                        if ($have_blame) {
3153                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
3154                                                             file_name=>$diff->{'file'})},
3155                                              "blame") . " | ";
3156                        }
3157                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
3158                                                     file_name=>$diff->{'file'})},
3159                                      "history");
3160                        print "</td>\n";
3161
3162                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
3163                        my $mode_chnge = "";
3164                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3165                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
3166                                if ($from_file_type ne $to_file_type) {
3167                                        $mode_chnge .= " from $from_file_type to $to_file_type";
3168                                }
3169                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
3170                                        if ($from_mode_str && $to_mode_str) {
3171                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
3172                                        } elsif ($to_mode_str) {
3173                                                $mode_chnge .= " mode: $to_mode_str";
3174                                        }
3175                                }
3176                                $mode_chnge .= "]</span>\n";
3177                        }
3178                        print "<td>";
3179                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3180                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
3181                                      -class => "list"}, esc_path($diff->{'file'}));
3182                        print "</td>\n";
3183                        print "<td>$mode_chnge</td>\n";
3184                        print "<td class=\"link\">";
3185                        if ($action eq 'commitdiff') {
3186                                # link to patch
3187                                $patchno++;
3188                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3189                                      " | ";
3190                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3191                                # "commit" view and modified file (not onlu mode changed)
3192                                print $cgi->a({-href => href(action=>"blobdiff",
3193                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3194                                                             hash_base=>$hash, hash_parent_base=>$parent,
3195                                                             file_name=>$diff->{'file'})},
3196                                              "diff") .
3197                                      " | ";
3198                        }
3199                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3200                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
3201                                       "blob") . " | ";
3202                        if ($have_blame) {
3203                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3204                                                             file_name=>$diff->{'file'})},
3205                                              "blame") . " | ";
3206                        }
3207                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3208                                                     file_name=>$diff->{'file'})},
3209                                      "history");
3210                        print "</td>\n";
3211
3212                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
3213                        my %status_name = ('R' => 'moved', 'C' => 'copied');
3214                        my $nstatus = $status_name{$diff->{'status'}};
3215                        my $mode_chng = "";
3216                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3217                                # mode also for directories, so we cannot use $to_mode_str
3218                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
3219                        }
3220                        print "<td>" .
3221                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
3222                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
3223                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
3224                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
3225                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
3226                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
3227                                      -class => "list"}, esc_path($diff->{'from_file'})) .
3228                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
3229                              "<td class=\"link\">";
3230                        if ($action eq 'commitdiff') {
3231                                # link to patch
3232                                $patchno++;
3233                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3234                                      " | ";
3235                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3236                                # "commit" view and modified file (not only pure rename or copy)
3237                                print $cgi->a({-href => href(action=>"blobdiff",
3238                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3239                                                             hash_base=>$hash, hash_parent_base=>$parent,
3240                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
3241                                              "diff") .
3242                                      " | ";
3243                        }
3244                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3245                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
3246                                      "blob") . " | ";
3247                        if ($have_blame) {
3248                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3249                                                             file_name=>$diff->{'to_file'})},
3250                                              "blame") . " | ";
3251                        }
3252                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3253                                                    file_name=>$diff->{'to_file'})},
3254                                      "history");
3255                        print "</td>\n";
3256
3257                } # we should not encounter Unmerged (U) or Unknown (X) status
3258                print "</tr>\n";
3259        }
3260        print "</tbody>" if $has_header;
3261        print "</table>\n";
3262}
3263
3264sub git_patchset_body {
3265        my ($fd, $difftree, $hash, @hash_parents) = @_;
3266        my ($hash_parent) = $hash_parents[0];
3267
3268        my $is_combined = (@hash_parents > 1);
3269        my $patch_idx = 0;
3270        my $patch_number = 0;
3271        my $patch_line;
3272        my $diffinfo;
3273        my $to_name;
3274        my (%from, %to);
3275
3276        print "<div class=\"patchset\">\n";
3277
3278        # skip to first patch
3279        while ($patch_line = <$fd>) {
3280                chomp $patch_line;
3281
3282                last if ($patch_line =~ m/^diff /);
3283        }
3284
3285 PATCH:
3286        while ($patch_line) {
3287
3288                # parse "git diff" header line
3289                if ($patch_line =~ m/^diff --git (\"(?:[^\\\"]*(?:\\.[^\\\"]*)*)\"|[^ "]*) (.*)$/) {
3290                        # $1 is from_name, which we do not use
3291                        $to_name = unquote($2);
3292                        $to_name =~ s!^b/!!;
3293                } elsif ($patch_line =~ m/^diff --(cc|combined) ("?.*"?)$/) {
3294                        # $1 is 'cc' or 'combined', which we do not use
3295                        $to_name = unquote($2);
3296                } else {
3297                        $to_name = undef;
3298                }
3299
3300                # check if current patch belong to current raw line
3301                # and parse raw git-diff line if needed
3302                if (is_patch_split($diffinfo, { 'to_file' => $to_name })) {
3303                        # this is continuation of a split patch
3304                        print "<div class=\"patch cont\">\n";
3305                } else {
3306                        # advance raw git-diff output if needed
3307                        $patch_idx++ if defined $diffinfo;
3308
3309                        # read and prepare patch information
3310                        $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3311
3312                        # compact combined diff output can have some patches skipped
3313                        # find which patch (using pathname of result) we are at now;
3314                        if ($is_combined) {
3315                                while ($to_name ne $diffinfo->{'to_file'}) {
3316                                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3317                                              format_diff_cc_simplified($diffinfo, @hash_parents) .
3318                                              "</div>\n";  # class="patch"
3319
3320                                        $patch_idx++;
3321                                        $patch_number++;
3322
3323                                        last if $patch_idx > $#$difftree;
3324                                        $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3325                                }
3326                        }
3327
3328                        # modifies %from, %to hashes
3329                        parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
3330
3331                        # this is first patch for raw difftree line with $patch_idx index
3332                        # we index @$difftree array from 0, but number patches from 1
3333                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
3334                }
3335
3336                # git diff header
3337                #assert($patch_line =~ m/^diff /) if DEBUG;
3338                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
3339                $patch_number++;
3340                # print "git diff" header
3341                print format_git_diff_header_line($patch_line, $diffinfo,
3342                                                  \%from, \%to);
3343
3344                # print extended diff header
3345                print "<div class=\"diff extended_header\">\n";
3346        EXTENDED_HEADER:
3347                while ($patch_line = <$fd>) {
3348                        chomp $patch_line;
3349
3350                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
3351
3352                        print format_extended_diff_header_line($patch_line, $diffinfo,
3353                                                               \%from, \%to);
3354                }
3355                print "</div>\n"; # class="diff extended_header"
3356
3357                # from-file/to-file diff header
3358                if (! $patch_line) {
3359                        print "</div>\n"; # class="patch"
3360                        last PATCH;
3361                }
3362                next PATCH if ($patch_line =~ m/^diff /);
3363                #assert($patch_line =~ m/^---/) if DEBUG;
3364
3365                my $last_patch_line = $patch_line;
3366                $patch_line = <$fd>;
3367                chomp $patch_line;
3368                #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
3369
3370                print format_diff_from_to_header($last_patch_line, $patch_line,
3371                                                 $diffinfo, \%from, \%to,
3372                                                 @hash_parents);
3373
3374                # the patch itself
3375        LINE:
3376                while ($patch_line = <$fd>) {
3377                        chomp $patch_line;
3378
3379                        next PATCH if ($patch_line =~ m/^diff /);
3380
3381                        print format_diff_line($patch_line, \%from, \%to);
3382                }
3383
3384        } continue {
3385                print "</div>\n"; # class="patch"
3386        }
3387
3388        # for compact combined (--cc) format, with chunk and patch simpliciaction
3389        # patchset might be empty, but there might be unprocessed raw lines
3390        for (++$patch_idx if $patch_number > 0;
3391             $patch_idx < @$difftree;
3392             ++$patch_idx) {
3393                # read and prepare patch information
3394                $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3395
3396                # generate anchor for "patch" links in difftree / whatchanged part
3397                print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3398                      format_diff_cc_simplified($diffinfo, @hash_parents) .
3399                      "</div>\n";  # class="patch"
3400
3401                $patch_number++;
3402        }
3403
3404        if ($patch_number == 0) {
3405                if (@hash_parents > 1) {
3406                        print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
3407                } else {
3408                        print "<div class=\"diff nodifferences\">No differences found</div>\n";
3409                }
3410        }
3411
3412        print "</div>\n"; # class="patchset"
3413}
3414
3415# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3416
3417sub git_project_list_body {
3418        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
3419
3420        my ($check_forks) = gitweb_check_feature('forks');
3421
3422        my @projects;
3423        foreach my $pr (@$projlist) {
3424                my (@aa) = git_get_last_activity($pr->{'path'});
3425                unless (@aa) {
3426                        next;
3427                }
3428                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
3429                if (!defined $pr->{'descr'}) {
3430                        my $descr = git_get_project_description($pr->{'path'}) || "";
3431                        $pr->{'descr_long'} = to_utf8($descr);
3432                        $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
3433                }
3434                if (!defined $pr->{'owner'}) {
3435                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
3436                }
3437                if ($check_forks) {
3438                        my $pname = $pr->{'path'};
3439                        if (($pname =~ s/\.git$//) &&
3440                            ($pname !~ /\/$/) &&
3441                            (-d "$projectroot/$pname")) {
3442                                $pr->{'forks'} = "-d $projectroot/$pname";
3443                        }
3444                        else {
3445                                $pr->{'forks'} = 0;
3446                        }
3447                }
3448                push @projects, $pr;
3449        }
3450
3451        $order ||= $default_projects_order;
3452        $from = 0 unless defined $from;
3453        $to = $#projects if (!defined $to || $#projects < $to);
3454
3455        print "<table class=\"project_list\">\n";
3456        unless ($no_header) {
3457                print "<tr>\n";
3458                if ($check_forks) {
3459                        print "<th></th>\n";
3460                }
3461                if ($order eq "project") {
3462                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
3463                        print "<th>Project</th>\n";
3464                } else {
3465                        print "<th>" .
3466                              $cgi->a({-href => href(project=>undef, order=>'project'),
3467                                       -class => "header"}, "Project") .
3468                              "</th>\n";
3469                }
3470                if ($order eq "descr") {
3471                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
3472                        print "<th>Description</th>\n";
3473                } else {
3474                        print "<th>" .
3475                              $cgi->a({-href => href(project=>undef, order=>'descr'),
3476                                       -class => "header"}, "Description") .
3477                              "</th>\n";
3478                }
3479                if ($order eq "owner") {
3480                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
3481                        print "<th>Owner</th>\n";
3482                } else {
3483                        print "<th>" .
3484                              $cgi->a({-href => href(project=>undef, order=>'owner'),
3485                                       -class => "header"}, "Owner") .
3486                              "</th>\n";
3487                }
3488                if ($order eq "age") {
3489                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
3490                        print "<th>Last Change</th>\n";
3491                } else {
3492                        print "<th>" .
3493                              $cgi->a({-href => href(project=>undef, order=>'age'),
3494                                       -class => "header"}, "Last Change") .
3495                              "</th>\n";
3496                }
3497                print "<th></th>\n" .
3498                      "</tr>\n";
3499        }
3500        my $alternate = 1;
3501        for (my $i = $from; $i <= $to; $i++) {
3502                my $pr = $projects[$i];
3503                if ($alternate) {
3504                        print "<tr class=\"dark\">\n";
3505                } else {
3506                        print "<tr class=\"light\">\n";
3507                }
3508                $alternate ^= 1;
3509                if ($check_forks) {
3510                        print "<td>";
3511                        if ($pr->{'forks'}) {
3512                                print "<!-- $pr->{'forks'} -->\n";
3513                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
3514                        }
3515                        print "</td>\n";
3516                }
3517                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3518                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
3519                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3520                                        -class => "list", -title => $pr->{'descr_long'}},
3521                                        esc_html($pr->{'descr'})) . "</td>\n" .
3522                      "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
3523                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3524                      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3525                      "<td class=\"link\">" .
3526                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3527                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3528                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3529                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3530                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3531                      "</td>\n" .
3532                      "</tr>\n";
3533        }
3534        if (defined $extra) {
3535                print "<tr>\n";
3536                if ($check_forks) {
3537                        print "<td></td>\n";
3538                }
3539                print "<td colspan=\"5\">$extra</td>\n" .
3540                      "</tr>\n";
3541        }
3542        print "</table>\n";
3543}
3544
3545sub git_shortlog_body {
3546        # uses global variable $project
3547        my ($commitlist, $from, $to, $refs, $extra) = @_;
3548
3549        $from = 0 unless defined $from;
3550        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3551
3552        print "<table class=\"shortlog\">\n";
3553        my $alternate = 1;
3554        for (my $i = $from; $i <= $to; $i++) {
3555                my %co = %{$commitlist->[$i]};
3556                my $commit = $co{'id'};
3557                my $ref = format_ref_marker($refs, $commit);
3558                if ($alternate) {
3559                        print "<tr class=\"dark\">\n";
3560                } else {
3561                        print "<tr class=\"light\">\n";
3562                }
3563                $alternate ^= 1;
3564                my $author = chop_and_escape_str($co{'author_name'}, 10);
3565                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3566                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3567                      "<td><i>" . $author . "</i></td>\n" .
3568                      "<td>";
3569                print format_subject_html($co{'title'}, $co{'title_short'},
3570                                          href(action=>"commit", hash=>$commit), $ref);
3571                print "</td>\n" .
3572                      "<td class=\"link\">" .
3573                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3574                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3575                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3576                my $snapshot_links = format_snapshot_links($commit);
3577                if (defined $snapshot_links) {
3578                        print " | " . $snapshot_links;
3579                }
3580                print "</td>\n" .
3581                      "</tr>\n";
3582        }
3583        if (defined $extra) {
3584                print "<tr>\n" .
3585                      "<td colspan=\"4\">$extra</td>\n" .
3586                      "</tr>\n";
3587        }
3588        print "</table>\n";
3589}
3590
3591sub git_history_body {
3592        # Warning: assumes constant type (blob or tree) during history
3593        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3594
3595        $from = 0 unless defined $from;
3596        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3597
3598        print "<table class=\"history\">\n";
3599        my $alternate = 1;
3600        for (my $i = $from; $i <= $to; $i++) {
3601                my %co = %{$commitlist->[$i]};
3602                if (!%co) {
3603                        next;
3604                }
3605                my $commit = $co{'id'};
3606
3607                my $ref = format_ref_marker($refs, $commit);
3608
3609                if ($alternate) {
3610                        print "<tr class=\"dark\">\n";
3611                } else {
3612                        print "<tr class=\"light\">\n";
3613                }
3614                $alternate ^= 1;
3615        # shortlog uses      chop_str($co{'author_name'}, 10)
3616                my $author = chop_and_escape_str($co{'author_name'}, 15, 3);
3617                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3618                      "<td><i>" . $author . "</i></td>\n" .
3619                      "<td>";
3620                # originally git_history used chop_str($co{'title'}, 50)
3621                print format_subject_html($co{'title'}, $co{'title_short'},
3622                                          href(action=>"commit", hash=>$commit), $ref);
3623                print "</td>\n" .
3624                      "<td class=\"link\">" .
3625                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3626                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3627
3628                if ($ftype eq 'blob') {
3629                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3630                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3631                        if (defined $blob_current && defined $blob_parent &&
3632                                        $blob_current ne $blob_parent) {
3633                                print " | " .
3634                                        $cgi->a({-href => href(action=>"blobdiff",
3635                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3636                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3637                                                               file_name=>$file_name)},
3638                                                "diff to current");
3639                        }
3640                }
3641                print "</td>\n" .
3642                      "</tr>\n";
3643        }
3644        if (defined $extra) {
3645                print "<tr>\n" .
3646                      "<td colspan=\"4\">$extra</td>\n" .
3647                      "</tr>\n";
3648        }
3649        print "</table>\n";
3650}
3651
3652sub git_tags_body {
3653        # uses global variable $project
3654        my ($taglist, $from, $to, $extra) = @_;
3655        $from = 0 unless defined $from;
3656        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3657
3658        print "<table class=\"tags\">\n";
3659        my $alternate = 1;
3660        for (my $i = $from; $i <= $to; $i++) {
3661                my $entry = $taglist->[$i];
3662                my %tag = %$entry;
3663                my $comment = $tag{'subject'};
3664                my $comment_short;
3665                if (defined $comment) {
3666                        $comment_short = chop_str($comment, 30, 5);
3667                }
3668                if ($alternate) {
3669                        print "<tr class=\"dark\">\n";
3670                } else {
3671                        print "<tr class=\"light\">\n";
3672                }
3673                $alternate ^= 1;
3674                if (defined $tag{'age'}) {
3675                        print "<td><i>$tag{'age'}</i></td>\n";
3676                } else {
3677                        print "<td></td>\n";
3678                }
3679                print "<td>" .
3680                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3681                               -class => "list name"}, esc_html($tag{'name'})) .
3682                      "</td>\n" .
3683                      "<td>";
3684                if (defined $comment) {
3685                        print format_subject_html($comment, $comment_short,
3686                                                  href(action=>"tag", hash=>$tag{'id'}));
3687                }
3688                print "</td>\n" .
3689                      "<td class=\"selflink\">";
3690                if ($tag{'type'} eq "tag") {
3691                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3692                } else {
3693                        print "&nbsp;";
3694                }
3695                print "</td>\n" .
3696                      "<td class=\"link\">" . " | " .
3697                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3698                if ($tag{'reftype'} eq "commit") {
3699                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'fullname'})}, "shortlog") .
3700                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'fullname'})}, "log");
3701                } elsif ($tag{'reftype'} eq "blob") {
3702                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3703                }
3704                print "</td>\n" .
3705                      "</tr>";
3706        }
3707        if (defined $extra) {
3708                print "<tr>\n" .
3709                      "<td colspan=\"5\">$extra</td>\n" .
3710                      "</tr>\n";
3711        }
3712        print "</table>\n";
3713}
3714
3715sub git_heads_body {
3716        # uses global variable $project
3717        my ($headlist, $head, $from, $to, $extra) = @_;
3718        $from = 0 unless defined $from;
3719        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3720
3721        print "<table class=\"heads\">\n";
3722        my $alternate = 1;
3723        for (my $i = $from; $i <= $to; $i++) {
3724                my $entry = $headlist->[$i];
3725                my %ref = %$entry;
3726                my $curr = $ref{'id'} eq $head;
3727                if ($alternate) {
3728                        print "<tr class=\"dark\">\n";
3729                } else {
3730                        print "<tr class=\"light\">\n";
3731                }
3732                $alternate ^= 1;
3733                print "<td><i>$ref{'age'}</i></td>\n" .
3734                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3735                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'}),
3736                               -class => "list name"},esc_html($ref{'name'})) .
3737                      "</td>\n" .
3738                      "<td class=\"link\">" .
3739                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'})}, "shortlog") . " | " .
3740                      $cgi->a({-href => href(action=>"log", hash=>$ref{'fullname'})}, "log") . " | " .
3741                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'fullname'}, hash_base=>$ref{'name'})}, "tree") .
3742                      "</td>\n" .
3743                      "</tr>";
3744        }
3745        if (defined $extra) {
3746                print "<tr>\n" .
3747                      "<td colspan=\"3\">$extra</td>\n" .
3748                      "</tr>\n";
3749        }
3750        print "</table>\n";
3751}
3752
3753sub git_search_grep_body {
3754        my ($commitlist, $from, $to, $extra) = @_;
3755        $from = 0 unless defined $from;
3756        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3757
3758        print "<table class=\"commit_search\">\n";
3759        my $alternate = 1;
3760        for (my $i = $from; $i <= $to; $i++) {
3761                my %co = %{$commitlist->[$i]};
3762                if (!%co) {
3763                        next;
3764                }
3765                my $commit = $co{'id'};
3766                if ($alternate) {
3767                        print "<tr class=\"dark\">\n";
3768                } else {
3769                        print "<tr class=\"light\">\n";
3770                }
3771                $alternate ^= 1;
3772                my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
3773                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3774                      "<td><i>" . $author . "</i></td>\n" .
3775                      "<td>" .
3776                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3777                               chop_and_escape_str($co{'title'}, 50) . "<br/>");
3778                my $comment = $co{'comment'};
3779                foreach my $line (@$comment) {
3780                        if ($line =~ m/^(.*)($search_regexp)(.*)$/i) {
3781                                my $lead = esc_html($1) || "";
3782                                $lead = chop_str($lead, 30, 10);
3783                                my $match = esc_html($2) || "";
3784                                my $trail = esc_html($3) || "";
3785                                $trail = chop_str($trail, 30, 10);
3786                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3787                                print chop_str($text, 80, 5) . "<br/>\n";
3788                        }
3789                }
3790                print "</td>\n" .
3791                      "<td class=\"link\">" .
3792                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3793                      " | " .
3794                      $cgi->a({-href => href(action=>"commitdiff", hash=>$co{'id'})}, "commitdiff") .
3795                      " | " .
3796                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3797                print "</td>\n" .
3798                      "</tr>\n";
3799        }
3800        if (defined $extra) {
3801                print "<tr>\n" .
3802                      "<td colspan=\"3\">$extra</td>\n" .
3803                      "</tr>\n";
3804        }
3805        print "</table>\n";
3806}
3807
3808## ======================================================================
3809## ======================================================================
3810## actions
3811
3812sub git_project_list {
3813        my $order = $cgi->param('o');
3814        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3815                die_error(undef, "Unknown order parameter");
3816        }
3817
3818        my @list = git_get_projects_list();
3819        if (!@list) {
3820                die_error(undef, "No projects found");
3821        }
3822
3823        git_header_html();
3824        if (-f $home_text) {
3825                print "<div class=\"index_include\">\n";
3826                open (my $fd, $home_text);
3827                print <$fd>;
3828                close $fd;
3829                print "</div>\n";
3830        }
3831        git_project_list_body(\@list, $order);
3832        git_footer_html();
3833}
3834
3835sub git_forks {
3836        my $order = $cgi->param('o');
3837        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3838                die_error(undef, "Unknown order parameter");
3839        }
3840
3841        my @list = git_get_projects_list($project);
3842        if (!@list) {
3843                die_error(undef, "No forks found");
3844        }
3845
3846        git_header_html();
3847        git_print_page_nav('','');
3848        git_print_header_div('summary', "$project forks");
3849        git_project_list_body(\@list, $order);
3850        git_footer_html();
3851}
3852
3853sub git_project_index {
3854        my @projects = git_get_projects_list($project);
3855
3856        print $cgi->header(
3857                -type => 'text/plain',
3858                -charset => 'utf-8',
3859                -content_disposition => 'inline; filename="index.aux"');
3860
3861        foreach my $pr (@projects) {
3862                if (!exists $pr->{'owner'}) {
3863                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
3864                }
3865
3866                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3867                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3868                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3869                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3870                $path  =~ s/ /\+/g;
3871                $owner =~ s/ /\+/g;
3872
3873                print "$path $owner\n";
3874        }
3875}
3876
3877sub git_summary {
3878        my $descr = git_get_project_description($project) || "none";
3879        my %co = parse_commit("HEAD");
3880        my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
3881        my $head = $co{'id'};
3882
3883        my $owner = git_get_project_owner($project);
3884
3885        my $refs = git_get_references();
3886        # These get_*_list functions return one more to allow us to see if
3887        # there are more ...
3888        my @taglist  = git_get_tags_list(16);
3889        my @headlist = git_get_heads_list(16);
3890        my @forklist;
3891        my ($check_forks) = gitweb_check_feature('forks');
3892
3893        if ($check_forks) {
3894                @forklist = git_get_projects_list($project);
3895        }
3896
3897        git_header_html();
3898        git_print_page_nav('summary','', $head);
3899
3900        print "<div class=\"title\">&nbsp;</div>\n";
3901        print "<table class=\"projects_list\">\n" .
3902              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3903              "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
3904        if (defined $cd{'rfc2822'}) {
3905                print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3906        }
3907
3908        # use per project git URL list in $projectroot/$project/cloneurl
3909        # or make project git URL from git base URL and project name
3910        my $url_tag = "URL";
3911        my @url_list = git_get_project_url_list($project);
3912        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3913        foreach my $git_url (@url_list) {
3914                next unless $git_url;
3915                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3916                $url_tag = "";
3917        }
3918        print "</table>\n";
3919
3920        if (-s "$projectroot/$project/README.html") {
3921                if (open my $fd, "$projectroot/$project/README.html") {
3922                        print "<div class=\"title\">readme</div>\n" .
3923                              "<div class=\"readme\">\n";
3924                        print $_ while (<$fd>);
3925                        print "\n</div>\n"; # class="readme"
3926                        close $fd;
3927                }
3928        }
3929
3930        # we need to request one more than 16 (0..15) to check if
3931        # those 16 are all
3932        my @commitlist = $head ? parse_commits($head, 17) : ();
3933        if (@commitlist) {
3934                git_print_header_div('shortlog');
3935                git_shortlog_body(\@commitlist, 0, 15, $refs,
3936                                  $#commitlist <=  15 ? undef :
3937                                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
3938        }
3939
3940        if (@taglist) {
3941                git_print_header_div('tags');
3942                git_tags_body(\@taglist, 0, 15,
3943                              $#taglist <=  15 ? undef :
3944                              $cgi->a({-href => href(action=>"tags")}, "..."));
3945        }
3946
3947        if (@headlist) {
3948                git_print_header_div('heads');
3949                git_heads_body(\@headlist, $head, 0, 15,
3950                               $#headlist <= 15 ? undef :
3951                               $cgi->a({-href => href(action=>"heads")}, "..."));
3952        }
3953
3954        if (@forklist) {
3955                git_print_header_div('forks');
3956                git_project_list_body(\@forklist, undef, 0, 15,
3957                                      $#forklist <= 15 ? undef :
3958                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3959                                      'noheader');
3960        }
3961
3962        git_footer_html();
3963}
3964
3965sub git_tag {
3966        my $head = git_get_head_hash($project);
3967        git_header_html();
3968        git_print_page_nav('','', $head,undef,$head);
3969        my %tag = parse_tag($hash);
3970
3971        if (! %tag) {
3972                die_error(undef, "Unknown tag object");
3973        }
3974
3975        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3976        print "<div class=\"title_text\">\n" .
3977              "<table class=\"object_header\">\n" .
3978              "<tr>\n" .
3979              "<td>object</td>\n" .
3980              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3981                               $tag{'object'}) . "</td>\n" .
3982              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3983                                              $tag{'type'}) . "</td>\n" .
3984              "</tr>\n";
3985        if (defined($tag{'author'})) {
3986                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3987                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3988                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3989                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3990                        "</td></tr>\n";
3991        }
3992        print "</table>\n\n" .
3993              "</div>\n";
3994        print "<div class=\"page_body\">";
3995        my $comment = $tag{'comment'};
3996        foreach my $line (@$comment) {
3997                chomp $line;
3998                print esc_html($line, -nbsp=>1) . "<br/>\n";
3999        }
4000        print "</div>\n";
4001        git_footer_html();
4002}
4003
4004sub git_blame2 {
4005        my $fd;
4006        my $ftype;
4007
4008        my ($have_blame) = gitweb_check_feature('blame');
4009        if (!$have_blame) {
4010                die_error('403 Permission denied', "Permission denied");
4011        }
4012        die_error('404 Not Found', "File name not defined") if (!$file_name);
4013        $hash_base ||= git_get_head_hash($project);
4014        die_error(undef, "Couldn't find base commit") unless ($hash_base);
4015        my %co = parse_commit($hash_base)
4016                or die_error(undef, "Reading commit failed");
4017        if (!defined $hash) {
4018                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
4019                        or die_error(undef, "Error looking up file");
4020        }
4021        $ftype = git_get_type($hash);
4022        if ($ftype !~ "blob") {
4023                die_error('400 Bad Request', "Object is not a blob");
4024        }
4025        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
4026              $file_name, $hash_base)
4027                or die_error(undef, "Open git-blame failed");
4028        git_header_html();
4029        my $formats_nav =
4030                $cgi->a({-href => href(action=>"blob", -replay=>1)},
4031                        "blob") .
4032                " | " .
4033                $cgi->a({-href => href(action=>"history", -replay=>1)},
4034                        "history") .
4035                " | " .
4036                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4037                        "HEAD");
4038        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4039        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4040        git_print_page_path($file_name, $ftype, $hash_base);
4041        my @rev_color = (qw(light2 dark2));
4042        my $num_colors = scalar(@rev_color);
4043        my $current_color = 0;
4044        my $last_rev;
4045        print <<HTML;
4046<div class="page_body">
4047<table class="blame">
4048<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
4049HTML
4050        my %metainfo = ();
4051        while (1) {
4052                $_ = <$fd>;
4053                last unless defined $_;
4054                my ($full_rev, $orig_lineno, $lineno, $group_size) =
4055                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
4056                if (!exists $metainfo{$full_rev}) {
4057                        $metainfo{$full_rev} = {};
4058                }
4059                my $meta = $metainfo{$full_rev};
4060                while (<$fd>) {
4061                        last if (s/^\t//);
4062                        if (/^(\S+) (.*)$/) {
4063                                $meta->{$1} = $2;
4064                        }
4065                }
4066                my $data = $_;
4067                chomp $data;
4068                my $rev = substr($full_rev, 0, 8);
4069                my $author = $meta->{'author'};
4070                my %date = parse_date($meta->{'author-time'},
4071                                      $meta->{'author-tz'});
4072                my $date = $date{'iso-tz'};
4073                if ($group_size) {
4074                        $current_color = ++$current_color % $num_colors;
4075                }
4076                print "<tr class=\"$rev_color[$current_color]\">\n";
4077                if ($group_size) {
4078                        print "<td class=\"sha1\"";
4079                        print " title=\"". esc_html($author) . ", $date\"";
4080                        print " rowspan=\"$group_size\"" if ($group_size > 1);
4081                        print ">";
4082                        print $cgi->a({-href => href(action=>"commit",
4083                                                     hash=>$full_rev,
4084                                                     file_name=>$file_name)},
4085                                      esc_html($rev));
4086                        print "</td>\n";
4087                }
4088                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
4089                        or die_error(undef, "Open git-rev-parse failed");
4090                my $parent_commit = <$dd>;
4091                close $dd;
4092                chomp($parent_commit);
4093                my $blamed = href(action => 'blame',
4094                                  file_name => $meta->{'filename'},
4095                                  hash_base => $parent_commit);
4096                print "<td class=\"linenr\">";
4097                print $cgi->a({ -href => "$blamed#l$orig_lineno",
4098                                -id => "l$lineno",
4099                                -class => "linenr" },
4100                              esc_html($lineno));
4101                print "</td>";
4102                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
4103                print "</tr>\n";
4104        }
4105        print "</table>\n";
4106        print "</div>";
4107        close $fd
4108                or print "Reading blob failed\n";
4109        git_footer_html();
4110}
4111
4112sub git_blame {
4113        my $fd;
4114
4115        my ($have_blame) = gitweb_check_feature('blame');
4116        if (!$have_blame) {
4117                die_error('403 Permission denied', "Permission denied");
4118        }
4119        die_error('404 Not Found', "File name not defined") if (!$file_name);
4120        $hash_base ||= git_get_head_hash($project);
4121        die_error(undef, "Couldn't find base commit") unless ($hash_base);
4122        my %co = parse_commit($hash_base)
4123                or die_error(undef, "Reading commit failed");
4124        if (!defined $hash) {
4125                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
4126                        or die_error(undef, "Error lookup file");
4127        }
4128        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
4129                or die_error(undef, "Open git-annotate failed");
4130        git_header_html();
4131        my $formats_nav =
4132                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4133                        "blob") .
4134                " | " .
4135                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4136                        "history") .
4137                " | " .
4138                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4139                        "HEAD");
4140        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4141        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4142        git_print_page_path($file_name, 'blob', $hash_base);
4143        print "<div class=\"page_body\">\n";
4144        print <<HTML;
4145<table class="blame">
4146  <tr>
4147    <th>Commit</th>
4148    <th>Age</th>
4149    <th>Author</th>
4150    <th>Line</th>
4151    <th>Data</th>
4152  </tr>
4153HTML
4154        my @line_class = (qw(light dark));
4155        my $line_class_len = scalar (@line_class);
4156        my $line_class_num = $#line_class;
4157        while (my $line = <$fd>) {
4158                my $long_rev;
4159                my $short_rev;
4160                my $author;
4161                my $time;
4162                my $lineno;
4163                my $data;
4164                my $age;
4165                my $age_str;
4166                my $age_class;
4167
4168                chomp $line;
4169                $line_class_num = ($line_class_num + 1) % $line_class_len;
4170
4171                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
4172                        $long_rev = $1;
4173                        $author   = $2;
4174                        $time     = $3;
4175                        $lineno   = $4;
4176                        $data     = $5;
4177                } else {
4178                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
4179                        next;
4180                }
4181                $short_rev  = substr ($long_rev, 0, 8);
4182                $age        = time () - $time;
4183                $age_str    = age_string ($age);
4184                $age_str    =~ s/ /&nbsp;/g;
4185                $age_class  = age_class($age);
4186                $author     = esc_html ($author);
4187                $author     =~ s/ /&nbsp;/g;
4188
4189                $data = untabify($data);
4190                $data = esc_html ($data);
4191
4192                print <<HTML;
4193  <tr class="$line_class[$line_class_num]">
4194    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
4195    <td class="$age_class">$age_str</td>
4196    <td>$author</td>
4197    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
4198    <td class="pre">$data</td>
4199  </tr>
4200HTML
4201        } # while (my $line = <$fd>)
4202        print "</table>\n\n";
4203        close $fd
4204                or print "Reading blob failed.\n";
4205        print "</div>";
4206        git_footer_html();
4207}
4208
4209sub git_tags {
4210        my $head = git_get_head_hash($project);
4211        git_header_html();
4212        git_print_page_nav('','', $head,undef,$head);
4213        git_print_header_div('summary', $project);
4214
4215        my @tagslist = git_get_tags_list();
4216        if (@tagslist) {
4217                git_tags_body(\@tagslist);
4218        }
4219        git_footer_html();
4220}
4221
4222sub git_heads {
4223        my $head = git_get_head_hash($project);
4224        git_header_html();
4225        git_print_page_nav('','', $head,undef,$head);
4226        git_print_header_div('summary', $project);
4227
4228        my @headslist = git_get_heads_list();
4229        if (@headslist) {
4230                git_heads_body(\@headslist, $head);
4231        }
4232        git_footer_html();
4233}
4234
4235sub git_blob_plain {
4236        my $expires;
4237
4238        if (!defined $hash) {
4239                if (defined $file_name) {
4240                        my $base = $hash_base || git_get_head_hash($project);
4241                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4242                                or die_error(undef, "Error lookup file");
4243                } else {
4244                        die_error(undef, "No file name defined");
4245                }
4246        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4247                # blobs defined by non-textual hash id's can be cached
4248                $expires = "+1d";
4249        }
4250
4251        my $type = shift;
4252        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4253                or die_error(undef, "Couldn't cat $file_name, $hash");
4254
4255        $type ||= blob_mimetype($fd, $file_name);
4256
4257        # save as filename, even when no $file_name is given
4258        my $save_as = "$hash";
4259        if (defined $file_name) {
4260                $save_as = $file_name;
4261        } elsif ($type =~ m/^text\//) {
4262                $save_as .= '.txt';
4263        }
4264
4265        print $cgi->header(
4266                -type => "$type",
4267                -expires=>$expires,
4268                -content_disposition => 'inline; filename="' . "$save_as" . '"');
4269        undef $/;
4270        binmode STDOUT, ':raw';
4271        print <$fd>;
4272        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4273        $/ = "\n";
4274        close $fd;
4275}
4276
4277sub git_blob {
4278        my $expires;
4279
4280        if (!defined $hash) {
4281                if (defined $file_name) {
4282                        my $base = $hash_base || git_get_head_hash($project);
4283                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4284                                or die_error(undef, "Error lookup file");
4285                } else {
4286                        die_error(undef, "No file name defined");
4287                }
4288        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4289                # blobs defined by non-textual hash id's can be cached
4290                $expires = "+1d";
4291        }
4292
4293        my ($have_blame) = gitweb_check_feature('blame');
4294        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4295                or die_error(undef, "Couldn't cat $file_name, $hash");
4296        my $mimetype = blob_mimetype($fd, $file_name);
4297        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)! && -B $fd) {
4298                close $fd;
4299                return git_blob_plain($mimetype);
4300        }
4301        # we can have blame only for text/* mimetype
4302        $have_blame &&= ($mimetype =~ m!^text/!);
4303
4304        git_header_html(undef, $expires);
4305        my $formats_nav = '';
4306        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4307                if (defined $file_name) {
4308                        if ($have_blame) {
4309                                $formats_nav .=
4310                                        $cgi->a({-href => href(action=>"blame", -replay=>1)},
4311                                                "blame") .
4312                                        " | ";
4313                        }
4314                        $formats_nav .=
4315                                $cgi->a({-href => href(action=>"history", -replay=>1)},
4316                                        "history") .
4317                                " | " .
4318                                $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
4319                                        "raw") .
4320                                " | " .
4321                                $cgi->a({-href => href(action=>"blob",
4322                                                       hash_base=>"HEAD", file_name=>$file_name)},
4323                                        "HEAD");
4324                } else {
4325                        $formats_nav .=
4326                                $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
4327                                        "raw");
4328                }
4329                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4330                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4331        } else {
4332                print "<div class=\"page_nav\">\n" .
4333                      "<br/><br/></div>\n" .
4334                      "<div class=\"title\">$hash</div>\n";
4335        }
4336        git_print_page_path($file_name, "blob", $hash_base);
4337        print "<div class=\"page_body\">\n";
4338        if ($mimetype =~ m!^image/!) {
4339                print qq!<img type="$mimetype"!;
4340                if ($file_name) {
4341                        print qq! alt="$file_name" title="$file_name"!;
4342                }
4343                print qq! src="! .
4344                      href(action=>"blob_plain", hash=>$hash,
4345                           hash_base=>$hash_base, file_name=>$file_name) .
4346                      qq!" />\n!;
4347        } else {
4348                my $nr;
4349                while (my $line = <$fd>) {
4350                        chomp $line;
4351                        $nr++;
4352                        $line = untabify($line);
4353                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
4354                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
4355                }
4356        }
4357        close $fd
4358                or print "Reading blob failed.\n";
4359        print "</div>";
4360        git_footer_html();
4361}
4362
4363sub git_tree {
4364        if (!defined $hash_base) {
4365                $hash_base = "HEAD";
4366        }
4367        if (!defined $hash) {
4368                if (defined $file_name) {
4369                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
4370                } else {
4371                        $hash = $hash_base;
4372                }
4373        }
4374        $/ = "\0";
4375        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
4376                or die_error(undef, "Open git-ls-tree failed");
4377        my @entries = map { chomp; $_ } <$fd>;
4378        close $fd or die_error(undef, "Reading tree failed");
4379        $/ = "\n";
4380
4381        my $refs = git_get_references();
4382        my $ref = format_ref_marker($refs, $hash_base);
4383        git_header_html();
4384        my $basedir = '';
4385        my ($have_blame) = gitweb_check_feature('blame');
4386        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4387                my @views_nav = ();
4388                if (defined $file_name) {
4389                        push @views_nav,
4390                                $cgi->a({-href => href(action=>"history", -replay=>1)},
4391                                        "history"),
4392                                $cgi->a({-href => href(action=>"tree",
4393                                                       hash_base=>"HEAD", file_name=>$file_name)},
4394                                        "HEAD"),
4395                }
4396                my $snapshot_links = format_snapshot_links($hash);
4397                if (defined $snapshot_links) {
4398                        # FIXME: Should be available when we have no hash base as well.
4399                        push @views_nav, $snapshot_links;
4400                }
4401                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
4402                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
4403        } else {
4404                undef $hash_base;
4405                print "<div class=\"page_nav\">\n";
4406                print "<br/><br/></div>\n";
4407                print "<div class=\"title\">$hash</div>\n";
4408        }
4409        if (defined $file_name) {
4410                $basedir = $file_name;
4411                if ($basedir ne '' && substr($basedir, -1) ne '/') {
4412                        $basedir .= '/';
4413                }
4414        }
4415        git_print_page_path($file_name, 'tree', $hash_base);
4416        print "<div class=\"page_body\">\n";
4417        print "<table class=\"tree\">\n";
4418        my $alternate = 1;
4419        # '..' (top directory) link if possible
4420        if (defined $hash_base &&
4421            defined $file_name && $file_name =~ m![^/]+$!) {
4422                if ($alternate) {
4423                        print "<tr class=\"dark\">\n";
4424                } else {
4425                        print "<tr class=\"light\">\n";
4426                }
4427                $alternate ^= 1;
4428
4429                my $up = $file_name;
4430                $up =~ s!/?[^/]+$!!;
4431                undef $up unless $up;
4432                # based on git_print_tree_entry
4433                print '<td class="mode">' . mode_str('040000') . "</td>\n";
4434                print '<td class="list">';
4435                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
4436                                             file_name=>$up)},
4437                              "..");
4438                print "</td>\n";
4439                print "<td class=\"link\"></td>\n";
4440
4441                print "</tr>\n";
4442        }
4443        foreach my $line (@entries) {
4444                my %t = parse_ls_tree_line($line, -z => 1);
4445
4446                if ($alternate) {
4447                        print "<tr class=\"dark\">\n";
4448                } else {
4449                        print "<tr class=\"light\">\n";
4450                }
4451                $alternate ^= 1;
4452
4453                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
4454
4455                print "</tr>\n";
4456        }
4457        print "</table>\n" .
4458              "</div>";
4459        git_footer_html();
4460}
4461
4462sub git_snapshot {
4463        my @supported_fmts = gitweb_check_feature('snapshot');
4464        @supported_fmts = filter_snapshot_fmts(@supported_fmts);
4465
4466        my $format = $cgi->param('sf');
4467        if (!@supported_fmts) {
4468                die_error('403 Permission denied', "Permission denied");
4469        }
4470        # default to first supported snapshot format
4471        $format ||= $supported_fmts[0];
4472        if ($format !~ m/^[a-z0-9]+$/) {
4473                die_error(undef, "Invalid snapshot format parameter");
4474        } elsif (!exists($known_snapshot_formats{$format})) {
4475                die_error(undef, "Unknown snapshot format");
4476        } elsif (!grep($_ eq $format, @supported_fmts)) {
4477                die_error(undef, "Unsupported snapshot format");
4478        }
4479
4480        if (!defined $hash) {
4481                $hash = git_get_head_hash($project);
4482        }
4483
4484        my $git_command = git_cmd_str();
4485        my $name = $project;
4486        $name =~ s,([^/])/*\.git$,$1,;
4487        $name = basename($name);
4488        my $filename = to_utf8($name);
4489        $name =~ s/\047/\047\\\047\047/g;
4490        my $cmd;
4491        $filename .= "-$hash$known_snapshot_formats{$format}{'suffix'}";
4492        $cmd = "$git_command archive " .
4493                "--format=$known_snapshot_formats{$format}{'format'} " .
4494                "--prefix=\'$name\'/ $hash";
4495        if (exists $known_snapshot_formats{$format}{'compressor'}) {
4496                $cmd .= ' | ' . join ' ', @{$known_snapshot_formats{$format}{'compressor'}};
4497        }
4498
4499        print $cgi->header(
4500                -type => $known_snapshot_formats{$format}{'type'},
4501                -content_disposition => 'inline; filename="' . "$filename" . '"',
4502                -status => '200 OK');
4503
4504        open my $fd, "-|", $cmd
4505                or die_error(undef, "Execute git-archive failed");
4506        binmode STDOUT, ':raw';
4507        print <$fd>;
4508        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4509        close $fd;
4510}
4511
4512sub git_log {
4513        my $head = git_get_head_hash($project);
4514        if (!defined $hash) {
4515                $hash = $head;
4516        }
4517        if (!defined $page) {
4518                $page = 0;
4519        }
4520        my $refs = git_get_references();
4521
4522        my @commitlist = parse_commits($hash, 101, (100 * $page));
4523
4524        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
4525
4526        git_header_html();
4527        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
4528
4529        if (!@commitlist) {
4530                my %co = parse_commit($hash);
4531
4532                git_print_header_div('summary', $project);
4533                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
4534        }
4535        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
4536        for (my $i = 0; $i <= $to; $i++) {
4537                my %co = %{$commitlist[$i]};
4538                next if !%co;
4539                my $commit = $co{'id'};
4540                my $ref = format_ref_marker($refs, $commit);
4541                my %ad = parse_date($co{'author_epoch'});
4542                git_print_header_div('commit',
4543                               "<span class=\"age\">$co{'age_string'}</span>" .
4544                               esc_html($co{'title'}) . $ref,
4545                               $commit);
4546                print "<div class=\"title_text\">\n" .
4547                      "<div class=\"log_link\">\n" .
4548                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4549                      " | " .
4550                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4551                      " | " .
4552                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4553                      "<br/>\n" .
4554                      "</div>\n" .
4555                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4556                      "</div>\n";
4557
4558                print "<div class=\"log_body\">\n";
4559                git_print_log($co{'comment'}, -final_empty_line=> 1);
4560                print "</div>\n";
4561        }
4562        if ($#commitlist >= 100) {
4563                print "<div class=\"page_nav\">\n";
4564                print $cgi->a({-href => href(-replay=>1, page=>$page+1),
4565                               -accesskey => "n", -title => "Alt-n"}, "next");
4566                print "</div>\n";
4567        }
4568        git_footer_html();
4569}
4570
4571sub git_commit {
4572        $hash ||= $hash_base || "HEAD";
4573        my %co = parse_commit($hash);
4574        if (!%co) {
4575                die_error(undef, "Unknown commit object");
4576        }
4577        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4578        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4579
4580        my $parent  = $co{'parent'};
4581        my $parents = $co{'parents'}; # listref
4582
4583        # we need to prepare $formats_nav before any parameter munging
4584        my $formats_nav;
4585        if (!defined $parent) {
4586                # --root commitdiff
4587                $formats_nav .= '(initial)';
4588        } elsif (@$parents == 1) {
4589                # single parent commit
4590                $formats_nav .=
4591                        '(parent: ' .
4592                        $cgi->a({-href => href(action=>"commit",
4593                                               hash=>$parent)},
4594                                esc_html(substr($parent, 0, 7))) .
4595                        ')';
4596        } else {
4597                # merge commit
4598                $formats_nav .=
4599                        '(merge: ' .
4600                        join(' ', map {
4601                                $cgi->a({-href => href(action=>"commit",
4602                                                       hash=>$_)},
4603                                        esc_html(substr($_, 0, 7)));
4604                        } @$parents ) .
4605                        ')';
4606        }
4607
4608        if (!defined $parent) {
4609                $parent = "--root";
4610        }
4611        my @difftree;
4612        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4613                @diff_opts,
4614                (@$parents <= 1 ? $parent : '-c'),
4615                $hash, "--"
4616                or die_error(undef, "Open git-diff-tree failed");
4617        @difftree = map { chomp; $_ } <$fd>;
4618        close $fd or die_error(undef, "Reading git-diff-tree failed");
4619
4620        # non-textual hash id's can be cached
4621        my $expires;
4622        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4623                $expires = "+1d";
4624        }
4625        my $refs = git_get_references();
4626        my $ref = format_ref_marker($refs, $co{'id'});
4627
4628        git_header_html(undef, $expires);
4629        git_print_page_nav('commit', '',
4630                           $hash, $co{'tree'}, $hash,
4631                           $formats_nav);
4632
4633        if (defined $co{'parent'}) {
4634                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4635        } else {
4636                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4637        }
4638        print "<div class=\"title_text\">\n" .
4639              "<table class=\"object_header\">\n";
4640        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4641              "<tr>" .
4642              "<td></td><td> $ad{'rfc2822'}";
4643        if ($ad{'hour_local'} < 6) {
4644                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4645                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4646        } else {
4647                printf(" (%02d:%02d %s)",
4648                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4649        }
4650        print "</td>" .
4651              "</tr>\n";
4652        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4653        print "<tr><td></td><td> $cd{'rfc2822'}" .
4654              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4655              "</td></tr>\n";
4656        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4657        print "<tr>" .
4658              "<td>tree</td>" .
4659              "<td class=\"sha1\">" .
4660              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4661                       class => "list"}, $co{'tree'}) .
4662              "</td>" .
4663              "<td class=\"link\">" .
4664              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4665                      "tree");
4666        my $snapshot_links = format_snapshot_links($hash);
4667        if (defined $snapshot_links) {
4668                print " | " . $snapshot_links;
4669        }
4670        print "</td>" .
4671              "</tr>\n";
4672
4673        foreach my $par (@$parents) {
4674                print "<tr>" .
4675                      "<td>parent</td>" .
4676                      "<td class=\"sha1\">" .
4677                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4678                               class => "list"}, $par) .
4679                      "</td>" .
4680                      "<td class=\"link\">" .
4681                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4682                      " | " .
4683                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4684                      "</td>" .
4685                      "</tr>\n";
4686        }
4687        print "</table>".
4688              "</div>\n";
4689
4690        print "<div class=\"page_body\">\n";
4691        git_print_log($co{'comment'});
4692        print "</div>\n";
4693
4694        git_difftree_body(\@difftree, $hash, @$parents);
4695
4696        git_footer_html();
4697}
4698
4699sub git_object {
4700        # object is defined by:
4701        # - hash or hash_base alone
4702        # - hash_base and file_name
4703        my $type;
4704
4705        # - hash or hash_base alone
4706        if ($hash || ($hash_base && !defined $file_name)) {
4707                my $object_id = $hash || $hash_base;
4708
4709                my $git_command = git_cmd_str();
4710                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4711                        or die_error('404 Not Found', "Object does not exist");
4712                $type = <$fd>;
4713                chomp $type;
4714                close $fd
4715                        or die_error('404 Not Found', "Object does not exist");
4716
4717        # - hash_base and file_name
4718        } elsif ($hash_base && defined $file_name) {
4719                $file_name =~ s,/+$,,;
4720
4721                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4722                        or die_error('404 Not Found', "Base object does not exist");
4723
4724                # here errors should not hapen
4725                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4726                        or die_error(undef, "Open git-ls-tree failed");
4727                my $line = <$fd>;
4728                close $fd;
4729
4730                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4731                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4732                        die_error('404 Not Found', "File or directory for given base does not exist");
4733                }
4734                $type = $2;
4735                $hash = $3;
4736        } else {
4737                die_error('404 Not Found', "Not enough information to find object");
4738        }
4739
4740        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4741                                          hash=>$hash, hash_base=>$hash_base,
4742                                          file_name=>$file_name),
4743                             -status => '302 Found');
4744}
4745
4746sub git_blobdiff {
4747        my $format = shift || 'html';
4748
4749        my $fd;
4750        my @difftree;
4751        my %diffinfo;
4752        my $expires;
4753
4754        # preparing $fd and %diffinfo for git_patchset_body
4755        # new style URI
4756        if (defined $hash_base && defined $hash_parent_base) {
4757                if (defined $file_name) {
4758                        # read raw output
4759                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4760                                $hash_parent_base, $hash_base,
4761                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4762                                or die_error(undef, "Open git-diff-tree failed");
4763                        @difftree = map { chomp; $_ } <$fd>;
4764                        close $fd
4765                                or die_error(undef, "Reading git-diff-tree failed");
4766                        @difftree
4767                                or die_error('404 Not Found', "Blob diff not found");
4768
4769                } elsif (defined $hash &&
4770                         $hash =~ /[0-9a-fA-F]{40}/) {
4771                        # try to find filename from $hash
4772
4773                        # read filtered raw output
4774                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4775                                $hash_parent_base, $hash_base, "--"
4776                                or die_error(undef, "Open git-diff-tree failed");
4777                        @difftree =
4778                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4779                                # $hash == to_id
4780                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4781                                map { chomp; $_ } <$fd>;
4782                        close $fd
4783                                or die_error(undef, "Reading git-diff-tree failed");
4784                        @difftree
4785                                or die_error('404 Not Found', "Blob diff not found");
4786
4787                } else {
4788                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4789                }
4790
4791                if (@difftree > 1) {
4792                        die_error('404 Not Found', "Ambiguous blob diff specification");
4793                }
4794
4795                %diffinfo = parse_difftree_raw_line($difftree[0]);
4796                $file_parent ||= $diffinfo{'from_file'} || $file_name;
4797                $file_name   ||= $diffinfo{'to_file'};
4798
4799                $hash_parent ||= $diffinfo{'from_id'};
4800                $hash        ||= $diffinfo{'to_id'};
4801
4802                # non-textual hash id's can be cached
4803                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4804                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4805                        $expires = '+1d';
4806                }
4807
4808                # open patch output
4809                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4810                        '-p', ($format eq 'html' ? "--full-index" : ()),
4811                        $hash_parent_base, $hash_base,
4812                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4813                        or die_error(undef, "Open git-diff-tree failed");
4814        }
4815
4816        # old/legacy style URI
4817        if (!%diffinfo && # if new style URI failed
4818            defined $hash && defined $hash_parent) {
4819                # fake git-diff-tree raw output
4820                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4821                $diffinfo{'from_id'} = $hash_parent;
4822                $diffinfo{'to_id'}   = $hash;
4823                if (defined $file_name) {
4824                        if (defined $file_parent) {
4825                                $diffinfo{'status'} = '2';
4826                                $diffinfo{'from_file'} = $file_parent;
4827                                $diffinfo{'to_file'}   = $file_name;
4828                        } else { # assume not renamed
4829                                $diffinfo{'status'} = '1';
4830                                $diffinfo{'from_file'} = $file_name;
4831                                $diffinfo{'to_file'}   = $file_name;
4832                        }
4833                } else { # no filename given
4834                        $diffinfo{'status'} = '2';
4835                        $diffinfo{'from_file'} = $hash_parent;
4836                        $diffinfo{'to_file'}   = $hash;
4837                }
4838
4839                # non-textual hash id's can be cached
4840                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4841                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4842                        $expires = '+1d';
4843                }
4844
4845                # open patch output
4846                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4847                        '-p', ($format eq 'html' ? "--full-index" : ()),
4848                        $hash_parent, $hash, "--"
4849                        or die_error(undef, "Open git-diff failed");
4850        } else  {
4851                die_error('404 Not Found', "Missing one of the blob diff parameters")
4852                        unless %diffinfo;
4853        }
4854
4855        # header
4856        if ($format eq 'html') {
4857                my $formats_nav =
4858                        $cgi->a({-href => href(action=>"blobdiff_plain", -replay=>1)},
4859                                "raw");
4860                git_header_html(undef, $expires);
4861                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4862                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4863                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4864                } else {
4865                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4866                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4867                }
4868                if (defined $file_name) {
4869                        git_print_page_path($file_name, "blob", $hash_base);
4870                } else {
4871                        print "<div class=\"page_path\"></div>\n";
4872                }
4873
4874        } elsif ($format eq 'plain') {
4875                print $cgi->header(
4876                        -type => 'text/plain',
4877                        -charset => 'utf-8',
4878                        -expires => $expires,
4879                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4880
4881                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4882
4883        } else {
4884                die_error(undef, "Unknown blobdiff format");
4885        }
4886
4887        # patch
4888        if ($format eq 'html') {
4889                print "<div class=\"page_body\">\n";
4890
4891                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4892                close $fd;
4893
4894                print "</div>\n"; # class="page_body"
4895                git_footer_html();
4896
4897        } else {
4898                while (my $line = <$fd>) {
4899                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4900                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4901
4902                        print $line;
4903
4904                        last if $line =~ m!^\+\+\+!;
4905                }
4906                local $/ = undef;
4907                print <$fd>;
4908                close $fd;
4909        }
4910}
4911
4912sub git_blobdiff_plain {
4913        git_blobdiff('plain');
4914}
4915
4916sub git_commitdiff {
4917        my $format = shift || 'html';
4918        $hash ||= $hash_base || "HEAD";
4919        my %co = parse_commit($hash);
4920        if (!%co) {
4921                die_error(undef, "Unknown commit object");
4922        }
4923
4924        # choose format for commitdiff for merge
4925        if (! defined $hash_parent && @{$co{'parents'}} > 1) {
4926                $hash_parent = '--cc';
4927        }
4928        # we need to prepare $formats_nav before almost any parameter munging
4929        my $formats_nav;
4930        if ($format eq 'html') {
4931                $formats_nav =
4932                        $cgi->a({-href => href(action=>"commitdiff_plain", -replay=>1)},
4933                                "raw");
4934
4935                if (defined $hash_parent &&
4936                    $hash_parent ne '-c' && $hash_parent ne '--cc') {
4937                        # commitdiff with two commits given
4938                        my $hash_parent_short = $hash_parent;
4939                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4940                                $hash_parent_short = substr($hash_parent, 0, 7);
4941                        }
4942                        $formats_nav .=
4943                                ' (from';
4944                        for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
4945                                if ($co{'parents'}[$i] eq $hash_parent) {
4946                                        $formats_nav .= ' parent ' . ($i+1);
4947                                        last;
4948                                }
4949                        }
4950                        $formats_nav .= ': ' .
4951                                $cgi->a({-href => href(action=>"commitdiff",
4952                                                       hash=>$hash_parent)},
4953                                        esc_html($hash_parent_short)) .
4954                                ')';
4955                } elsif (!$co{'parent'}) {
4956                        # --root commitdiff
4957                        $formats_nav .= ' (initial)';
4958                } elsif (scalar @{$co{'parents'}} == 1) {
4959                        # single parent commit
4960                        $formats_nav .=
4961                                ' (parent: ' .
4962                                $cgi->a({-href => href(action=>"commitdiff",
4963                                                       hash=>$co{'parent'})},
4964                                        esc_html(substr($co{'parent'}, 0, 7))) .
4965                                ')';
4966                } else {
4967                        # merge commit
4968                        if ($hash_parent eq '--cc') {
4969                                $formats_nav .= ' | ' .
4970                                        $cgi->a({-href => href(action=>"commitdiff",
4971                                                               hash=>$hash, hash_parent=>'-c')},
4972                                                'combined');
4973                        } else { # $hash_parent eq '-c'
4974                                $formats_nav .= ' | ' .
4975                                        $cgi->a({-href => href(action=>"commitdiff",
4976                                                               hash=>$hash, hash_parent=>'--cc')},
4977                                                'compact');
4978                        }
4979                        $formats_nav .=
4980                                ' (merge: ' .
4981                                join(' ', map {
4982                                        $cgi->a({-href => href(action=>"commitdiff",
4983                                                               hash=>$_)},
4984                                                esc_html(substr($_, 0, 7)));
4985                                } @{$co{'parents'}} ) .
4986                                ')';
4987                }
4988        }
4989
4990        my $hash_parent_param = $hash_parent;
4991        if (!defined $hash_parent_param) {
4992                # --cc for multiple parents, --root for parentless
4993                $hash_parent_param =
4994                        @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
4995        }
4996
4997        # read commitdiff
4998        my $fd;
4999        my @difftree;
5000        if ($format eq 'html') {
5001                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5002                        "--no-commit-id", "--patch-with-raw", "--full-index",
5003                        $hash_parent_param, $hash, "--"
5004                        or die_error(undef, "Open git-diff-tree failed");
5005
5006                while (my $line = <$fd>) {
5007                        chomp $line;
5008                        # empty line ends raw part of diff-tree output
5009                        last unless $line;
5010                        push @difftree, scalar parse_difftree_raw_line($line);
5011                }
5012
5013        } elsif ($format eq 'plain') {
5014                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5015                        '-p', $hash_parent_param, $hash, "--"
5016                        or die_error(undef, "Open git-diff-tree failed");
5017
5018        } else {
5019                die_error(undef, "Unknown commitdiff format");
5020        }
5021
5022        # non-textual hash id's can be cached
5023        my $expires;
5024        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
5025                $expires = "+1d";
5026        }
5027
5028        # write commit message
5029        if ($format eq 'html') {
5030                my $refs = git_get_references();
5031                my $ref = format_ref_marker($refs, $co{'id'});
5032
5033                git_header_html(undef, $expires);
5034                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
5035                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
5036                git_print_authorship(\%co);
5037                print "<div class=\"page_body\">\n";
5038                if (@{$co{'comment'}} > 1) {
5039                        print "<div class=\"log\">\n";
5040                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
5041                        print "</div>\n"; # class="log"
5042                }
5043
5044        } elsif ($format eq 'plain') {
5045                my $refs = git_get_references("tags");
5046                my $tagname = git_get_rev_name_tags($hash);
5047                my $filename = basename($project) . "-$hash.patch";
5048
5049                print $cgi->header(
5050                        -type => 'text/plain',
5051                        -charset => 'utf-8',
5052                        -expires => $expires,
5053                        -content_disposition => 'inline; filename="' . "$filename" . '"');
5054                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
5055                print "From: " . to_utf8($co{'author'}) . "\n";
5056                print "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n";
5057                print "Subject: " . to_utf8($co{'title'}) . "\n";
5058
5059                print "X-Git-Tag: $tagname\n" if $tagname;
5060                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
5061
5062                foreach my $line (@{$co{'comment'}}) {
5063                        print to_utf8($line) . "\n";
5064                }
5065                print "---\n\n";
5066        }
5067
5068        # write patch
5069        if ($format eq 'html') {
5070                my $use_parents = !defined $hash_parent ||
5071                        $hash_parent eq '-c' || $hash_parent eq '--cc';
5072                git_difftree_body(\@difftree, $hash,
5073                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
5074                print "<br/>\n";
5075
5076                git_patchset_body($fd, \@difftree, $hash,
5077                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
5078                close $fd;
5079                print "</div>\n"; # class="page_body"
5080                git_footer_html();
5081
5082        } elsif ($format eq 'plain') {
5083                local $/ = undef;
5084                print <$fd>;
5085                close $fd
5086                        or print "Reading git-diff-tree failed\n";
5087        }
5088}
5089
5090sub git_commitdiff_plain {
5091        git_commitdiff('plain');
5092}
5093
5094sub git_history {
5095        if (!defined $hash_base) {
5096                $hash_base = git_get_head_hash($project);
5097        }
5098        if (!defined $page) {
5099                $page = 0;
5100        }
5101        my $ftype;
5102        my %co = parse_commit($hash_base);
5103        if (!%co) {
5104                die_error(undef, "Unknown commit object");
5105        }
5106
5107        my $refs = git_get_references();
5108        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
5109
5110        if (!defined $hash && defined $file_name) {
5111                $hash = git_get_hash_by_path($hash_base, $file_name);
5112        }
5113        if (defined $hash) {
5114                $ftype = git_get_type($hash);
5115        }
5116
5117        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
5118
5119        my $paging_nav = '';
5120        if ($page > 0) {
5121                $paging_nav .=
5122                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5123                                               file_name=>$file_name)},
5124                                "first");
5125                $paging_nav .= " &sdot; " .
5126                        $cgi->a({-href => href(-replay=>1, page=>$page-1),
5127                                 -accesskey => "p", -title => "Alt-p"}, "prev");
5128        } else {
5129                $paging_nav .= "first";
5130                $paging_nav .= " &sdot; prev";
5131        }
5132        my $next_link = '';
5133        if ($#commitlist >= 100) {
5134                $next_link =
5135                        $cgi->a({-href => href(-replay=>1, page=>$page+1),
5136                                 -accesskey => "n", -title => "Alt-n"}, "next");
5137                $paging_nav .= " &sdot; $next_link";
5138        } else {
5139                $paging_nav .= " &sdot; next";
5140        }
5141
5142        git_header_html();
5143        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
5144        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
5145        git_print_page_path($file_name, $ftype, $hash_base);
5146
5147        git_history_body(\@commitlist, 0, 99,
5148                         $refs, $hash_base, $ftype, $next_link);
5149
5150        git_footer_html();
5151}
5152
5153sub git_search {
5154        my ($have_search) = gitweb_check_feature('search');
5155        if (!$have_search) {
5156                die_error('403 Permission denied', "Permission denied");
5157        }
5158        if (!defined $searchtext) {
5159                die_error(undef, "Text field empty");
5160        }
5161        if (!defined $hash) {
5162                $hash = git_get_head_hash($project);
5163        }
5164        my %co = parse_commit($hash);
5165        if (!%co) {
5166                die_error(undef, "Unknown commit object");
5167        }
5168        if (!defined $page) {
5169                $page = 0;
5170        }
5171
5172        $searchtype ||= 'commit';
5173        if ($searchtype eq 'pickaxe') {
5174                # pickaxe may take all resources of your box and run for several minutes
5175                # with every query - so decide by yourself how public you make this feature
5176                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5177                if (!$have_pickaxe) {
5178                        die_error('403 Permission denied', "Permission denied");
5179                }
5180        }
5181        if ($searchtype eq 'grep') {
5182                my ($have_grep) = gitweb_check_feature('grep');
5183                if (!$have_grep) {
5184                        die_error('403 Permission denied', "Permission denied");
5185                }
5186        }
5187
5188        git_header_html();
5189
5190        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
5191                my $greptype;
5192                if ($searchtype eq 'commit') {
5193                        $greptype = "--grep=";
5194                } elsif ($searchtype eq 'author') {
5195                        $greptype = "--author=";
5196                } elsif ($searchtype eq 'committer') {
5197                        $greptype = "--committer=";
5198                }
5199                $greptype .= $search_regexp;
5200                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
5201
5202                my $paging_nav = '';
5203                if ($page > 0) {
5204                        $paging_nav .=
5205                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5206                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
5207                                        "first");
5208                        $paging_nav .= " &sdot; " .
5209                                $cgi->a({-href => href(-replay=>1, page=>$page-1),
5210                                         -accesskey => "p", -title => "Alt-p"}, "prev");
5211                } else {
5212                        $paging_nav .= "first";
5213                        $paging_nav .= " &sdot; prev";
5214                }
5215                my $next_link = '';
5216                if ($#commitlist >= 100) {
5217                        $next_link =
5218                                $cgi->a({-href => href(-replay=>1, page=>$page+1),
5219                                         -accesskey => "n", -title => "Alt-n"}, "next");
5220                        $paging_nav .= " &sdot; $next_link";
5221                } else {
5222                        $paging_nav .= " &sdot; next";
5223                }
5224
5225                if ($#commitlist >= 100) {
5226                }
5227
5228                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
5229                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5230                git_search_grep_body(\@commitlist, 0, 99, $next_link);
5231        }
5232
5233        if ($searchtype eq 'pickaxe') {
5234                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5235                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5236
5237                print "<table class=\"pickaxe search\">\n";
5238                my $alternate = 1;
5239                $/ = "\n";
5240                my $git_command = git_cmd_str();
5241                my $searchqtext = $searchtext;
5242                $searchqtext =~ s/'/'\\''/;
5243                open my $fd, "-|", "$git_command rev-list $hash | " .
5244                        "$git_command diff-tree -r --stdin -S\'$searchqtext\'";
5245                undef %co;
5246                my @files;
5247                while (my $line = <$fd>) {
5248                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
5249                                my %set;
5250                                $set{'file'} = $6;
5251                                $set{'from_id'} = $3;
5252                                $set{'to_id'} = $4;
5253                                $set{'id'} = $set{'to_id'};
5254                                if ($set{'id'} =~ m/0{40}/) {
5255                                        $set{'id'} = $set{'from_id'};
5256                                }
5257                                if ($set{'id'} =~ m/0{40}/) {
5258                                        next;
5259                                }
5260                                push @files, \%set;
5261                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
5262                                if (%co) {
5263                                        if ($alternate) {
5264                                                print "<tr class=\"dark\">\n";
5265                                        } else {
5266                                                print "<tr class=\"light\">\n";
5267                                        }
5268                                        $alternate ^= 1;
5269                                        my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
5270                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
5271                                              "<td><i>" . $author . "</i></td>\n" .
5272                                              "<td>" .
5273                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
5274                                                      -class => "list subject"},
5275                                                      chop_and_escape_str($co{'title'}, 50) . "<br/>");
5276                                        while (my $setref = shift @files) {
5277                                                my %set = %$setref;
5278                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
5279                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
5280                                                              -class => "list"},
5281                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
5282                                                      "<br/>\n";
5283                                        }
5284                                        print "</td>\n" .
5285                                              "<td class=\"link\">" .
5286                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
5287                                              " | " .
5288                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
5289                                        print "</td>\n" .
5290                                              "</tr>\n";
5291                                }
5292                                %co = parse_commit($1);
5293                        }
5294                }
5295                close $fd;
5296
5297                print "</table>\n";
5298        }
5299
5300        if ($searchtype eq 'grep') {
5301                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5302                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5303
5304                print "<table class=\"grep_search\">\n";
5305                my $alternate = 1;
5306                my $matches = 0;
5307                $/ = "\n";
5308                open my $fd, "-|", git_cmd(), 'grep', '-n', '-i', '-E', $searchtext, $co{'tree'};
5309                my $lastfile = '';
5310                while (my $line = <$fd>) {
5311                        chomp $line;
5312                        my ($file, $lno, $ltext, $binary);
5313                        last if ($matches++ > 1000);
5314                        if ($line =~ /^Binary file (.+) matches$/) {
5315                                $file = $1;
5316                                $binary = 1;
5317                        } else {
5318                                (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
5319                        }
5320                        if ($file ne $lastfile) {
5321                                $lastfile and print "</td></tr>\n";
5322                                if ($alternate++) {
5323                                        print "<tr class=\"dark\">\n";
5324                                } else {
5325                                        print "<tr class=\"light\">\n";
5326                                }
5327                                print "<td class=\"list\">".
5328                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5329                                                               file_name=>"$file"),
5330                                                -class => "list"}, esc_path($file));
5331                                print "</td><td>\n";
5332                                $lastfile = $file;
5333                        }
5334                        if ($binary) {
5335                                print "<div class=\"binary\">Binary file</div>\n";
5336                        } else {
5337                                $ltext = untabify($ltext);
5338                                if ($ltext =~ m/^(.*)($searchtext)(.*)$/i) {
5339                                        $ltext = esc_html($1, -nbsp=>1);
5340                                        $ltext .= '<span class="match">';
5341                                        $ltext .= esc_html($2, -nbsp=>1);
5342                                        $ltext .= '</span>';
5343                                        $ltext .= esc_html($3, -nbsp=>1);
5344                                } else {
5345                                        $ltext = esc_html($ltext, -nbsp=>1);
5346                                }
5347                                print "<div class=\"pre\">" .
5348                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5349                                                               file_name=>"$file").'#l'.$lno,
5350                                                -class => "linenr"}, sprintf('%4i', $lno))
5351                                        . ' ' .  $ltext . "</div>\n";
5352                        }
5353                }
5354                if ($lastfile) {
5355                        print "</td></tr>\n";
5356                        if ($matches > 1000) {
5357                                print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
5358                        }
5359                } else {
5360                        print "<div class=\"diff nodifferences\">No matches found</div>\n";
5361                }
5362                close $fd;
5363
5364                print "</table>\n";
5365        }
5366        git_footer_html();
5367}
5368
5369sub git_search_help {
5370        git_header_html();
5371        git_print_page_nav('','', $hash,$hash,$hash);
5372        print <<EOT;
5373<dl>
5374<dt><b>commit</b></dt>
5375<dd>The commit messages and authorship information will be scanned for the given string.</dd>
5376EOT
5377        my ($have_grep) = gitweb_check_feature('grep');
5378        if ($have_grep) {
5379                print <<EOT;
5380<dt><b>grep</b></dt>
5381<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
5382    a different one) are searched for the given
5383<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a>
5384(POSIX extended) and the matches are listed. On large
5385trees, this search can take a while and put some strain on the server, so please use it with
5386some consideration.</dd>
5387EOT
5388        }
5389        print <<EOT;
5390<dt><b>author</b></dt>
5391<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
5392<dt><b>committer</b></dt>
5393<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
5394EOT
5395        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5396        if ($have_pickaxe) {
5397                print <<EOT;
5398<dt><b>pickaxe</b></dt>
5399<dd>All commits that caused the string to appear or disappear from any file (changes that
5400added, removed or "modified" the string) will be listed. This search can take a while and
5401takes a lot of strain on the server, so please use it wisely.</dd>
5402EOT
5403        }
5404        print "</dl>\n";
5405        git_footer_html();
5406}
5407
5408sub git_shortlog {
5409        my $head = git_get_head_hash($project);
5410        if (!defined $hash) {
5411                $hash = $head;
5412        }
5413        if (!defined $page) {
5414                $page = 0;
5415        }
5416        my $refs = git_get_references();
5417
5418        my @commitlist = parse_commits($hash, 101, (100 * $page));
5419
5420        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
5421        my $next_link = '';
5422        if ($#commitlist >= 100) {
5423                $next_link =
5424                        $cgi->a({-href => href(-replay=>1, page=>$page+1),
5425                                 -accesskey => "n", -title => "Alt-n"}, "next");
5426        }
5427
5428        git_header_html();
5429        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
5430        git_print_header_div('summary', $project);
5431
5432        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
5433
5434        git_footer_html();
5435}
5436
5437## ......................................................................
5438## feeds (RSS, Atom; OPML)
5439
5440sub git_feed {
5441        my $format = shift || 'atom';
5442        my ($have_blame) = gitweb_check_feature('blame');
5443
5444        # Atom: http://www.atomenabled.org/developers/syndication/
5445        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
5446        if ($format ne 'rss' && $format ne 'atom') {
5447                die_error(undef, "Unknown web feed format");
5448        }
5449
5450        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
5451        my $head = $hash || 'HEAD';
5452        my @commitlist = parse_commits($head, 150, 0, undef, $file_name);
5453
5454        my %latest_commit;
5455        my %latest_date;
5456        my $content_type = "application/$format+xml";
5457        if (defined $cgi->http('HTTP_ACCEPT') &&
5458                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
5459                # browser (feed reader) prefers text/xml
5460                $content_type = 'text/xml';
5461        }
5462        if (defined($commitlist[0])) {
5463                %latest_commit = %{$commitlist[0]};
5464                %latest_date   = parse_date($latest_commit{'author_epoch'});
5465                print $cgi->header(
5466                        -type => $content_type,
5467                        -charset => 'utf-8',
5468                        -last_modified => $latest_date{'rfc2822'});
5469        } else {
5470                print $cgi->header(
5471                        -type => $content_type,
5472                        -charset => 'utf-8');
5473        }
5474
5475        # Optimization: skip generating the body if client asks only
5476        # for Last-Modified date.
5477        return if ($cgi->request_method() eq 'HEAD');
5478
5479        # header variables
5480        my $title = "$site_name - $project/$action";
5481        my $feed_type = 'log';
5482        if (defined $hash) {
5483                $title .= " - '$hash'";
5484                $feed_type = 'branch log';
5485                if (defined $file_name) {
5486                        $title .= " :: $file_name";
5487                        $feed_type = 'history';
5488                }
5489        } elsif (defined $file_name) {
5490                $title .= " - $file_name";
5491                $feed_type = 'history';
5492        }
5493        $title .= " $feed_type";
5494        my $descr = git_get_project_description($project);
5495        if (defined $descr) {
5496                $descr = esc_html($descr);
5497        } else {
5498                $descr = "$project " .
5499                         ($format eq 'rss' ? 'RSS' : 'Atom') .
5500                         " feed";
5501        }
5502        my $owner = git_get_project_owner($project);
5503        $owner = esc_html($owner);
5504
5505        #header
5506        my $alt_url;
5507        if (defined $file_name) {
5508                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
5509        } elsif (defined $hash) {
5510                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
5511        } else {
5512                $alt_url = href(-full=>1, action=>"summary");
5513        }
5514        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
5515        if ($format eq 'rss') {
5516                print <<XML;
5517<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
5518<channel>
5519XML
5520                print "<title>$title</title>\n" .
5521                      "<link>$alt_url</link>\n" .
5522                      "<description>$descr</description>\n" .
5523                      "<language>en</language>\n";
5524        } elsif ($format eq 'atom') {
5525                print <<XML;
5526<feed xmlns="http://www.w3.org/2005/Atom">
5527XML
5528                print "<title>$title</title>\n" .
5529                      "<subtitle>$descr</subtitle>\n" .
5530                      '<link rel="alternate" type="text/html" href="' .
5531                      $alt_url . '" />' . "\n" .
5532                      '<link rel="self" type="' . $content_type . '" href="' .
5533                      $cgi->self_url() . '" />' . "\n" .
5534                      "<id>" . href(-full=>1) . "</id>\n" .
5535                      # use project owner for feed author
5536                      "<author><name>$owner</name></author>\n";
5537                if (defined $favicon) {
5538                        print "<icon>" . esc_url($favicon) . "</icon>\n";
5539                }
5540                if (defined $logo_url) {
5541                        # not twice as wide as tall: 72 x 27 pixels
5542                        print "<logo>" . esc_url($logo) . "</logo>\n";
5543                }
5544                if (! %latest_date) {
5545                        # dummy date to keep the feed valid until commits trickle in:
5546                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
5547                } else {
5548                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
5549                }
5550        }
5551
5552        # contents
5553        for (my $i = 0; $i <= $#commitlist; $i++) {
5554                my %co = %{$commitlist[$i]};
5555                my $commit = $co{'id'};
5556                # we read 150, we always show 30 and the ones more recent than 48 hours
5557                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
5558                        last;
5559                }
5560                my %cd = parse_date($co{'author_epoch'});
5561
5562                # get list of changed files
5563                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5564                        $co{'parent'} || "--root",
5565                        $co{'id'}, "--", (defined $file_name ? $file_name : ())
5566                        or next;
5567                my @difftree = map { chomp; $_ } <$fd>;
5568                close $fd
5569                        or next;
5570
5571                # print element (entry, item)
5572                my $co_url = href(-full=>1, action=>"commitdiff", hash=>$commit);
5573                if ($format eq 'rss') {
5574                        print "<item>\n" .
5575                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
5576                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
5577                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
5578                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
5579                              "<link>$co_url</link>\n" .
5580                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
5581                              "<content:encoded>" .
5582                              "<![CDATA[\n";
5583                } elsif ($format eq 'atom') {
5584                        print "<entry>\n" .
5585                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
5586                              "<updated>$cd{'iso-8601'}</updated>\n" .
5587                              "<author>\n" .
5588                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
5589                        if ($co{'author_email'}) {
5590                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
5591                        }
5592                        print "</author>\n" .
5593                              # use committer for contributor
5594                              "<contributor>\n" .
5595                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
5596                        if ($co{'committer_email'}) {
5597                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
5598                        }
5599                        print "</contributor>\n" .
5600                              "<published>$cd{'iso-8601'}</published>\n" .
5601                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
5602                              "<id>$co_url</id>\n" .
5603                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
5604                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
5605                }
5606                my $comment = $co{'comment'};
5607                print "<pre>\n";
5608                foreach my $line (@$comment) {
5609                        $line = esc_html($line);
5610                        print "$line\n";
5611                }
5612                print "</pre><ul>\n";
5613                foreach my $difftree_line (@difftree) {
5614                        my %difftree = parse_difftree_raw_line($difftree_line);
5615                        next if !$difftree{'from_id'};
5616
5617                        my $file = $difftree{'file'} || $difftree{'to_file'};
5618
5619                        print "<li>" .
5620                              "[" .
5621                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
5622                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
5623                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
5624                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
5625                                      -title => "diff"}, 'D');
5626                        if ($have_blame) {
5627                                print $cgi->a({-href => href(-full=>1, action=>"blame",
5628                                                             file_name=>$file, hash_base=>$commit),
5629                                              -title => "blame"}, 'B');
5630                        }
5631                        # if this is not a feed of a file history
5632                        if (!defined $file_name || $file_name ne $file) {
5633                                print $cgi->a({-href => href(-full=>1, action=>"history",
5634                                                             file_name=>$file, hash=>$commit),
5635                                              -title => "history"}, 'H');
5636                        }
5637                        $file = esc_path($file);
5638                        print "] ".
5639                              "$file</li>\n";
5640                }
5641                if ($format eq 'rss') {
5642                        print "</ul>]]>\n" .
5643                              "</content:encoded>\n" .
5644                              "</item>\n";
5645                } elsif ($format eq 'atom') {
5646                        print "</ul>\n</div>\n" .
5647                              "</content>\n" .
5648                              "</entry>\n";
5649                }
5650        }
5651
5652        # end of feed
5653        if ($format eq 'rss') {
5654                print "</channel>\n</rss>\n";
5655        }       elsif ($format eq 'atom') {
5656                print "</feed>\n";
5657        }
5658}
5659
5660sub git_rss {
5661        git_feed('rss');
5662}
5663
5664sub git_atom {
5665        git_feed('atom');
5666}
5667
5668sub git_opml {
5669        my @list = git_get_projects_list();
5670
5671        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5672        print <<XML;
5673<?xml version="1.0" encoding="utf-8"?>
5674<opml version="1.0">
5675<head>
5676  <title>$site_name OPML Export</title>
5677</head>
5678<body>
5679<outline text="git RSS feeds">
5680XML
5681
5682        foreach my $pr (@list) {
5683                my %proj = %$pr;
5684                my $head = git_get_head_hash($proj{'path'});
5685                if (!defined $head) {
5686                        next;
5687                }
5688                $git_dir = "$projectroot/$proj{'path'}";
5689                my %co = parse_commit($head);
5690                if (!%co) {
5691                        next;
5692                }
5693
5694                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5695                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5696                my $html = "$my_url?p=$proj{'path'};a=summary";
5697                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5698        }
5699        print <<XML;
5700</outline>
5701</body>
5702</opml>
5703XML
5704}