Andrew's git / gitweb.git / gitweb/gitweb.perl
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gitweb / gitweb.perlon commit gitweb: continue consolidation of URL generation. (756d2f0)
   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();
  18binmode STDOUT, ':utf8';
  19
  20our $cgi = new CGI;
  21our $version = "++GIT_VERSION++";
  22our $my_url = $cgi->url();
  23our $my_uri = $cgi->url(-absolute => 1);
  24
  25# core git executable to use
  26# this can just be "git" if your webserver has a sensible PATH
  27our $GIT = "++GIT_BINDIR++/git";
  28
  29# absolute fs-path which will be prepended to the project path
  30#our $projectroot = "/pub/scm";
  31our $projectroot = "++GITWEB_PROJECTROOT++";
  32
  33# location for temporary files needed for diffs
  34our $git_temp = "/tmp/gitweb";
  35
  36# target of the home link on top of all pages
  37our $home_link = $my_uri;
  38
  39# string of the home link on top of all pages
  40our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  41
  42# name of your site or organization to appear in page titles
  43# replace this with something more descriptive for clearer bookmarks
  44our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  45
  46# html text to include at home page
  47our $home_text = "++GITWEB_HOMETEXT++";
  48
  49# URI of default stylesheet
  50our $stylesheet = "++GITWEB_CSS++";
  51# URI of GIT logo
  52our $logo = "++GITWEB_LOGO++";
  53
  54# source of projects list
  55our $projects_list = "++GITWEB_LIST++";
  56
  57# list of git base URLs used for URL to where fetch project from,
  58# i.e. full URL is "$git_base_url/$project"
  59our @git_base_url_list = ("++GITWEB_BASE_URL++");
  60
  61# default blob_plain mimetype and default charset for text/plain blob
  62our $default_blob_plain_mimetype = 'text/plain';
  63our $default_text_plain_charset  = undef;
  64
  65# file to use for guessing MIME types before trying /etc/mime.types
  66# (relative to the current git repository)
  67our $mimetypes_file = undef;
  68
  69our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
  70require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
  71
  72# version of the core git binary
  73our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
  74
  75$projects_list ||= $projectroot;
  76if (! -d $git_temp) {
  77        mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
  78}
  79
  80# ======================================================================
  81# input validation and dispatch
  82our $action = $cgi->param('a');
  83if (defined $action) {
  84        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  85                die_error(undef, "Invalid action parameter");
  86        }
  87        # action which does not check rest of parameters
  88        if ($action eq "opml") {
  89                git_opml();
  90                exit;
  91        }
  92}
  93
  94our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
  95if (defined $project) {
  96        $project =~ s|^/||;
  97        $project =~ s|/$||;
  98}
  99if (defined $project && $project) {
 100        if (!validate_input($project)) {
 101                die_error(undef, "Invalid project parameter");
 102        }
 103        if (!(-d "$projectroot/$project")) {
 104                die_error(undef, "No such directory");
 105        }
 106        if (!(-e "$projectroot/$project/HEAD")) {
 107                die_error(undef, "No such project");
 108        }
 109        $ENV{'GIT_DIR'} = "$projectroot/$project";
 110} else {
 111        git_project_list();
 112        exit;
 113}
 114
 115our $file_name = $cgi->param('f');
 116if (defined $file_name) {
 117        if (!validate_input($file_name)) {
 118                die_error(undef, "Invalid file parameter");
 119        }
 120}
 121
 122our $hash = $cgi->param('h');
 123if (defined $hash) {
 124        if (!validate_input($hash)) {
 125                die_error(undef, "Invalid hash parameter");
 126        }
 127}
 128
 129our $hash_parent = $cgi->param('hp');
 130if (defined $hash_parent) {
 131        if (!validate_input($hash_parent)) {
 132                die_error(undef, "Invalid hash parent parameter");
 133        }
 134}
 135
 136our $hash_base = $cgi->param('hb');
 137if (defined $hash_base) {
 138        if (!validate_input($hash_base)) {
 139                die_error(undef, "Invalid hash base parameter");
 140        }
 141}
 142
 143our $page = $cgi->param('pg');
 144if (defined $page) {
 145        if ($page =~ m/[^0-9]$/) {
 146                die_error(undef, "Invalid page parameter");
 147        }
 148}
 149
 150our $searchtext = $cgi->param('s');
 151if (defined $searchtext) {
 152        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 153                die_error(undef, "Invalid search parameter");
 154        }
 155        $searchtext = quotemeta $searchtext;
 156}
 157
 158# dispatch
 159my %actions = (
 160        "blame" => \&git_blame2,
 161        "blobdiff" => \&git_blobdiff,
 162        "blobdiff_plain" => \&git_blobdiff_plain,
 163        "blob" => \&git_blob,
 164        "blob_plain" => \&git_blob_plain,
 165        "commitdiff" => \&git_commitdiff,
 166        "commitdiff_plain" => \&git_commitdiff_plain,
 167        "commit" => \&git_commit,
 168        "heads" => \&git_heads,
 169        "history" => \&git_history,
 170        "log" => \&git_log,
 171        "rss" => \&git_rss,
 172        "search" => \&git_search,
 173        "shortlog" => \&git_shortlog,
 174        "summary" => \&git_summary,
 175        "tag" => \&git_tag,
 176        "tags" => \&git_tags,
 177        "tree" => \&git_tree,
 178);
 179
 180$action = 'summary' if (!defined($action));
 181if (!defined($actions{$action})) {
 182        die_error(undef, "Unknown action");
 183}
 184$actions{$action}->();
 185exit;
 186
 187## ======================================================================
 188## action links
 189
 190sub href(%) {
 191        my %mapping = (
 192                action => "a",
 193                project => "p",
 194                file_name => "f",
 195                hash => "h",
 196                hash_parent => "hp",
 197                hash_base => "hb",
 198                page => "pg",
 199                searchtext => "s",
 200        );
 201
 202        my %params = @_;
 203        $params{"project"} ||= $project;
 204
 205        my $href = "$my_uri?";
 206        $href .= esc_param( join(";",
 207                map {
 208                        "$mapping{$_}=$params{$_}" if defined $params{$_}
 209                } keys %params
 210        ) );
 211
 212        return $href;
 213}
 214
 215
 216## ======================================================================
 217## validation, quoting/unquoting and escaping
 218
 219sub validate_input {
 220        my $input = shift;
 221
 222        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 223                return $input;
 224        }
 225        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 226                return undef;
 227        }
 228        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 229                return undef;
 230        }
 231        return $input;
 232}
 233
 234# quote unsafe chars, but keep the slash, even when it's not
 235# correct, but quoted slashes look too horrible in bookmarks
 236sub esc_param {
 237        my $str = shift;
 238        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 239        $str =~ s/\+/%2B/g;
 240        $str =~ s/ /\+/g;
 241        return $str;
 242}
 243
 244# replace invalid utf8 character with SUBSTITUTION sequence
 245sub esc_html {
 246        my $str = shift;
 247        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 248        $str = escapeHTML($str);
 249        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 250        return $str;
 251}
 252
 253# git may return quoted and escaped filenames
 254sub unquote {
 255        my $str = shift;
 256        if ($str =~ m/^"(.*)"$/) {
 257                $str = $1;
 258                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 259        }
 260        return $str;
 261}
 262
 263# escape tabs (convert tabs to spaces)
 264sub untabify {
 265        my $line = shift;
 266
 267        while ((my $pos = index($line, "\t")) != -1) {
 268                if (my $count = (8 - ($pos % 8))) {
 269                        my $spaces = ' ' x $count;
 270                        $line =~ s/\t/$spaces/;
 271                }
 272        }
 273
 274        return $line;
 275}
 276
 277## ----------------------------------------------------------------------
 278## HTML aware string manipulation
 279
 280sub chop_str {
 281        my $str = shift;
 282        my $len = shift;
 283        my $add_len = shift || 10;
 284
 285        # allow only $len chars, but don't cut a word if it would fit in $add_len
 286        # if it doesn't fit, cut it if it's still longer than the dots we would add
 287        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 288        my $body = $1;
 289        my $tail = $2;
 290        if (length($tail) > 4) {
 291                $tail = " ...";
 292                $body =~ s/&[^;]*$//; # remove chopped character entities
 293        }
 294        return "$body$tail";
 295}
 296
 297## ----------------------------------------------------------------------
 298## functions returning short strings
 299
 300# CSS class for given age value (in seconds)
 301sub age_class {
 302        my $age = shift;
 303
 304        if ($age < 60*60*2) {
 305                return "age0";
 306        } elsif ($age < 60*60*24*2) {
 307                return "age1";
 308        } else {
 309                return "age2";
 310        }
 311}
 312
 313# convert age in seconds to "nn units ago" string
 314sub age_string {
 315        my $age = shift;
 316        my $age_str;
 317
 318        if ($age > 60*60*24*365*2) {
 319                $age_str = (int $age/60/60/24/365);
 320                $age_str .= " years ago";
 321        } elsif ($age > 60*60*24*(365/12)*2) {
 322                $age_str = int $age/60/60/24/(365/12);
 323                $age_str .= " months ago";
 324        } elsif ($age > 60*60*24*7*2) {
 325                $age_str = int $age/60/60/24/7;
 326                $age_str .= " weeks ago";
 327        } elsif ($age > 60*60*24*2) {
 328                $age_str = int $age/60/60/24;
 329                $age_str .= " days ago";
 330        } elsif ($age > 60*60*2) {
 331                $age_str = int $age/60/60;
 332                $age_str .= " hours ago";
 333        } elsif ($age > 60*2) {
 334                $age_str = int $age/60;
 335                $age_str .= " min ago";
 336        } elsif ($age > 2) {
 337                $age_str = int $age;
 338                $age_str .= " sec ago";
 339        } else {
 340                $age_str .= " right now";
 341        }
 342        return $age_str;
 343}
 344
 345# convert file mode in octal to symbolic file mode string
 346sub mode_str {
 347        my $mode = oct shift;
 348
 349        if (S_ISDIR($mode & S_IFMT)) {
 350                return 'drwxr-xr-x';
 351        } elsif (S_ISLNK($mode)) {
 352                return 'lrwxrwxrwx';
 353        } elsif (S_ISREG($mode)) {
 354                # git cares only about the executable bit
 355                if ($mode & S_IXUSR) {
 356                        return '-rwxr-xr-x';
 357                } else {
 358                        return '-rw-r--r--';
 359                };
 360        } else {
 361                return '----------';
 362        }
 363}
 364
 365# convert file mode in octal to file type string
 366sub file_type {
 367        my $mode = oct shift;
 368
 369        if (S_ISDIR($mode & S_IFMT)) {
 370                return "directory";
 371        } elsif (S_ISLNK($mode)) {
 372                return "symlink";
 373        } elsif (S_ISREG($mode)) {
 374                return "file";
 375        } else {
 376                return "unknown";
 377        }
 378}
 379
 380## ----------------------------------------------------------------------
 381## functions returning short HTML fragments, or transforming HTML fragments
 382## which don't beling to other sections
 383
 384# format line of commit message or tag comment
 385sub format_log_line_html {
 386        my $line = shift;
 387
 388        $line = esc_html($line);
 389        $line =~ s/ /&nbsp;/g;
 390        if ($line =~ m/([0-9a-fA-F]{40})/) {
 391                my $hash_text = $1;
 392                if (git_get_type($hash_text) eq "commit") {
 393                        my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
 394                        $line =~ s/$hash_text/$link/;
 395                }
 396        }
 397        return $line;
 398}
 399
 400# format marker of refs pointing to given object
 401sub format_ref_marker {
 402        my ($refs, $id) = @_;
 403        my $markers = '';
 404
 405        if (defined $refs->{$id}) {
 406                foreach my $ref (@{$refs->{$id}}) {
 407                        my ($type, $name) = qw();
 408                        # e.g. tags/v2.6.11 or heads/next
 409                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 410                                $type = $1;
 411                                $name = $2;
 412                        } else {
 413                                $type = "ref";
 414                                $name = $ref;
 415                        }
 416
 417                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 418                }
 419        }
 420
 421        if ($markers) {
 422                return ' <span class="refs">'. $markers . '</span>';
 423        } else {
 424                return "";
 425        }
 426}
 427
 428# format, perhaps shortened and with markers, title line
 429sub format_subject_html {
 430        my ($long, $short, $href, $extra) = @_;
 431        $extra = '' unless defined($extra);
 432
 433        if (length($short) < length($long)) {
 434                return $cgi->a({-href => $href, -class => "list",
 435                                -title => $long},
 436                       esc_html($short) . $extra);
 437        } else {
 438                return $cgi->a({-href => $href, -class => "list"},
 439                       esc_html($long)  . $extra);
 440        }
 441}
 442
 443## ----------------------------------------------------------------------
 444## git utility subroutines, invoking git commands
 445
 446# get HEAD ref of given project as hash
 447sub git_get_head_hash {
 448        my $project = shift;
 449        my $oENV = $ENV{'GIT_DIR'};
 450        my $retval = undef;
 451        $ENV{'GIT_DIR'} = "$projectroot/$project";
 452        if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 453                my $head = <$fd>;
 454                close $fd;
 455                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 456                        $retval = $1;
 457                }
 458        }
 459        if (defined $oENV) {
 460                $ENV{'GIT_DIR'} = $oENV;
 461        }
 462        return $retval;
 463}
 464
 465# get type of given object
 466sub git_get_type {
 467        my $hash = shift;
 468
 469        open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 470        my $type = <$fd>;
 471        close $fd or return;
 472        chomp $type;
 473        return $type;
 474}
 475
 476sub git_get_project_config {
 477        my $key = shift;
 478
 479        return unless ($key);
 480        $key =~ s/^gitweb\.//;
 481        return if ($key =~ m/\W/);
 482
 483        my $val = qx($GIT repo-config --get gitweb.$key);
 484        return ($val);
 485}
 486
 487sub git_get_project_config_bool {
 488        my $val = git_get_project_config (@_);
 489        if ($val and $val =~ m/true|yes|on/) {
 490                return (1);
 491        }
 492        return; # implicit false
 493}
 494
 495# get hash of given path at given ref
 496sub git_get_hash_by_path {
 497        my $base = shift;
 498        my $path = shift || return undef;
 499
 500        my $tree = $base;
 501
 502        open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 503                or die_error(undef, "Open git-ls-tree failed");
 504        my $line = <$fd>;
 505        close $fd or return undef;
 506
 507        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 508        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 509        return $3;
 510}
 511
 512## ......................................................................
 513## git utility functions, directly accessing git repository
 514
 515# assumes that PATH is not symref
 516sub git_get_hash_by_ref {
 517        my $path = shift;
 518
 519        open my $fd, "$projectroot/$path" or return undef;
 520        my $head = <$fd>;
 521        close $fd;
 522        chomp $head;
 523        if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 524                return $head;
 525        }
 526}
 527
 528sub git_get_project_description {
 529        my $path = shift;
 530
 531        open my $fd, "$projectroot/$path/description" or return undef;
 532        my $descr = <$fd>;
 533        close $fd;
 534        chomp $descr;
 535        return $descr;
 536}
 537
 538sub git_get_project_url_list {
 539        my $path = shift;
 540
 541        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 542        my @git_project_url_list = map { chomp; $_ } <$fd>;
 543        close $fd;
 544
 545        return wantarray ? @git_project_url_list : \@git_project_url_list;
 546}
 547
 548sub git_get_projects_list {
 549        my @list;
 550
 551        if (-d $projects_list) {
 552                # search in directory
 553                my $dir = $projects_list;
 554                opendir my ($dh), $dir or return undef;
 555                while (my $dir = readdir($dh)) {
 556                        if (-e "$projectroot/$dir/HEAD") {
 557                                my $pr = {
 558                                        path => $dir,
 559                                };
 560                                push @list, $pr
 561                        }
 562                }
 563                closedir($dh);
 564        } elsif (-f $projects_list) {
 565                # read from file(url-encoded):
 566                # 'git%2Fgit.git Linus+Torvalds'
 567                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 568                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 569                open my ($fd), $projects_list or return undef;
 570                while (my $line = <$fd>) {
 571                        chomp $line;
 572                        my ($path, $owner) = split ' ', $line;
 573                        $path = unescape($path);
 574                        $owner = unescape($owner);
 575                        if (!defined $path) {
 576                                next;
 577                        }
 578                        if (-e "$projectroot/$path/HEAD") {
 579                                my $pr = {
 580                                        path => $path,
 581                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 582                                };
 583                                push @list, $pr
 584                        }
 585                }
 586                close $fd;
 587        }
 588        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 589        return @list;
 590}
 591
 592sub git_get_project_owner {
 593        my $project = shift;
 594        my $owner;
 595
 596        return undef unless $project;
 597
 598        # read from file (url-encoded):
 599        # 'git%2Fgit.git Linus+Torvalds'
 600        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 601        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 602        if (-f $projects_list) {
 603                open (my $fd , $projects_list);
 604                while (my $line = <$fd>) {
 605                        chomp $line;
 606                        my ($pr, $ow) = split ' ', $line;
 607                        $pr = unescape($pr);
 608                        $ow = unescape($ow);
 609                        if ($pr eq $project) {
 610                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 611                                last;
 612                        }
 613                }
 614                close $fd;
 615        }
 616        if (!defined $owner) {
 617                $owner = get_file_owner("$projectroot/$project");
 618        }
 619
 620        return $owner;
 621}
 622
 623sub git_get_references {
 624        my $type = shift || "";
 625        my %refs;
 626        my $fd;
 627        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 628        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 629        if (-f "$projectroot/$project/info/refs") {
 630                open $fd, "$projectroot/$project/info/refs"
 631                        or return;
 632        } else {
 633                open $fd, "-|", $GIT, "ls-remote", "."
 634                        or return;
 635        }
 636
 637        while (my $line = <$fd>) {
 638                chomp $line;
 639                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 640                        if (defined $refs{$1}) {
 641                                push @{$refs{$1}}, $2;
 642                        } else {
 643                                $refs{$1} = [ $2 ];
 644                        }
 645                }
 646        }
 647        close $fd or return;
 648        return \%refs;
 649}
 650
 651## ----------------------------------------------------------------------
 652## parse to hash functions
 653
 654sub parse_date {
 655        my $epoch = shift;
 656        my $tz = shift || "-0000";
 657
 658        my %date;
 659        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 660        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 661        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 662        $date{'hour'} = $hour;
 663        $date{'minute'} = $min;
 664        $date{'mday'} = $mday;
 665        $date{'day'} = $days[$wday];
 666        $date{'month'} = $months[$mon];
 667        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 668        $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 669
 670        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 671        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 672        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 673        $date{'hour_local'} = $hour;
 674        $date{'minute_local'} = $min;
 675        $date{'tz_local'} = $tz;
 676        return %date;
 677}
 678
 679sub parse_tag {
 680        my $tag_id = shift;
 681        my %tag;
 682        my @comment;
 683
 684        open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 685        $tag{'id'} = $tag_id;
 686        while (my $line = <$fd>) {
 687                chomp $line;
 688                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 689                        $tag{'object'} = $1;
 690                } elsif ($line =~ m/^type (.+)$/) {
 691                        $tag{'type'} = $1;
 692                } elsif ($line =~ m/^tag (.+)$/) {
 693                        $tag{'name'} = $1;
 694                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 695                        $tag{'author'} = $1;
 696                        $tag{'epoch'} = $2;
 697                        $tag{'tz'} = $3;
 698                } elsif ($line =~ m/--BEGIN/) {
 699                        push @comment, $line;
 700                        last;
 701                } elsif ($line eq "") {
 702                        last;
 703                }
 704        }
 705        push @comment, <$fd>;
 706        $tag{'comment'} = \@comment;
 707        close $fd or return;
 708        if (!defined $tag{'name'}) {
 709                return
 710        };
 711        return %tag
 712}
 713
 714sub parse_commit {
 715        my $commit_id = shift;
 716        my $commit_text = shift;
 717
 718        my @commit_lines;
 719        my %co;
 720
 721        if (defined $commit_text) {
 722                @commit_lines = @$commit_text;
 723        } else {
 724                $/ = "\0";
 725                open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 726                @commit_lines = split '\n', <$fd>;
 727                close $fd or return;
 728                $/ = "\n";
 729                pop @commit_lines;
 730        }
 731        my $header = shift @commit_lines;
 732        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 733                return;
 734        }
 735        ($co{'id'}, my @parents) = split ' ', $header;
 736        $co{'parents'} = \@parents;
 737        $co{'parent'} = $parents[0];
 738        while (my $line = shift @commit_lines) {
 739                last if $line eq "\n";
 740                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 741                        $co{'tree'} = $1;
 742                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 743                        $co{'author'} = $1;
 744                        $co{'author_epoch'} = $2;
 745                        $co{'author_tz'} = $3;
 746                        if ($co{'author'} =~ m/^([^<]+) </) {
 747                                $co{'author_name'} = $1;
 748                        } else {
 749                                $co{'author_name'} = $co{'author'};
 750                        }
 751                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 752                        $co{'committer'} = $1;
 753                        $co{'committer_epoch'} = $2;
 754                        $co{'committer_tz'} = $3;
 755                        $co{'committer_name'} = $co{'committer'};
 756                        $co{'committer_name'} =~ s/ <.*//;
 757                }
 758        }
 759        if (!defined $co{'tree'}) {
 760                return;
 761        };
 762
 763        foreach my $title (@commit_lines) {
 764                $title =~ s/^    //;
 765                if ($title ne "") {
 766                        $co{'title'} = chop_str($title, 80, 5);
 767                        # remove leading stuff of merges to make the interesting part visible
 768                        if (length($title) > 50) {
 769                                $title =~ s/^Automatic //;
 770                                $title =~ s/^merge (of|with) /Merge ... /i;
 771                                if (length($title) > 50) {
 772                                        $title =~ s/(http|rsync):\/\///;
 773                                }
 774                                if (length($title) > 50) {
 775                                        $title =~ s/(master|www|rsync)\.//;
 776                                }
 777                                if (length($title) > 50) {
 778                                        $title =~ s/kernel.org:?//;
 779                                }
 780                                if (length($title) > 50) {
 781                                        $title =~ s/\/pub\/scm//;
 782                                }
 783                        }
 784                        $co{'title_short'} = chop_str($title, 50, 5);
 785                        last;
 786                }
 787        }
 788        # remove added spaces
 789        foreach my $line (@commit_lines) {
 790                $line =~ s/^    //;
 791        }
 792        $co{'comment'} = \@commit_lines;
 793
 794        my $age = time - $co{'committer_epoch'};
 795        $co{'age'} = $age;
 796        $co{'age_string'} = age_string($age);
 797        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 798        if ($age > 60*60*24*7*2) {
 799                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 800                $co{'age_string_age'} = $co{'age_string'};
 801        } else {
 802                $co{'age_string_date'} = $co{'age_string'};
 803                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 804        }
 805        return %co;
 806}
 807
 808# parse ref from ref_file, given by ref_id, with given type
 809sub parse_ref {
 810        my $ref_file = shift;
 811        my $ref_id = shift;
 812        my $type = shift || git_get_type($ref_id);
 813        my %ref_item;
 814
 815        $ref_item{'type'} = $type;
 816        $ref_item{'id'} = $ref_id;
 817        $ref_item{'epoch'} = 0;
 818        $ref_item{'age'} = "unknown";
 819        if ($type eq "tag") {
 820                my %tag = parse_tag($ref_id);
 821                $ref_item{'comment'} = $tag{'comment'};
 822                if ($tag{'type'} eq "commit") {
 823                        my %co = parse_commit($tag{'object'});
 824                        $ref_item{'epoch'} = $co{'committer_epoch'};
 825                        $ref_item{'age'} = $co{'age_string'};
 826                } elsif (defined($tag{'epoch'})) {
 827                        my $age = time - $tag{'epoch'};
 828                        $ref_item{'epoch'} = $tag{'epoch'};
 829                        $ref_item{'age'} = age_string($age);
 830                }
 831                $ref_item{'reftype'} = $tag{'type'};
 832                $ref_item{'name'} = $tag{'name'};
 833                $ref_item{'refid'} = $tag{'object'};
 834        } elsif ($type eq "commit"){
 835                my %co = parse_commit($ref_id);
 836                $ref_item{'reftype'} = "commit";
 837                $ref_item{'name'} = $ref_file;
 838                $ref_item{'title'} = $co{'title'};
 839                $ref_item{'refid'} = $ref_id;
 840                $ref_item{'epoch'} = $co{'committer_epoch'};
 841                $ref_item{'age'} = $co{'age_string'};
 842        } else {
 843                $ref_item{'reftype'} = $type;
 844                $ref_item{'name'} = $ref_file;
 845                $ref_item{'refid'} = $ref_id;
 846        }
 847
 848        return %ref_item;
 849}
 850
 851## ......................................................................
 852## parse to array of hashes functions
 853
 854sub git_get_refs_list {
 855        my $ref_dir = shift;
 856        my @reflist;
 857
 858        my @refs;
 859        my $pfxlen = length("$projectroot/$project/$ref_dir");
 860        File::Find::find(sub {
 861                return if (/^\./);
 862                if (-f $_) {
 863                        push @refs, substr($File::Find::name, $pfxlen + 1);
 864                }
 865        }, "$projectroot/$project/$ref_dir");
 866
 867        foreach my $ref_file (@refs) {
 868                my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
 869                my $type = git_get_type($ref_id) || next;
 870                my %ref_item = parse_ref($ref_file, $ref_id, $type);
 871
 872                push @reflist, \%ref_item;
 873        }
 874        # sort refs by age
 875        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 876        return \@reflist;
 877}
 878
 879## ----------------------------------------------------------------------
 880## filesystem-related functions
 881
 882sub get_file_owner {
 883        my $path = shift;
 884
 885        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 886        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 887        if (!defined $gcos) {
 888                return undef;
 889        }
 890        my $owner = $gcos;
 891        $owner =~ s/[,;].*$//;
 892        return decode("utf8", $owner, Encode::FB_DEFAULT);
 893}
 894
 895## ......................................................................
 896## mimetype related functions
 897
 898sub mimetype_guess_file {
 899        my $filename = shift;
 900        my $mimemap = shift;
 901        -r $mimemap or return undef;
 902
 903        my %mimemap;
 904        open(MIME, $mimemap) or return undef;
 905        while (<MIME>) {
 906                next if m/^#/; # skip comments
 907                my ($mime, $exts) = split(/\t+/);
 908                if (defined $exts) {
 909                        my @exts = split(/\s+/, $exts);
 910                        foreach my $ext (@exts) {
 911                                $mimemap{$ext} = $mime;
 912                        }
 913                }
 914        }
 915        close(MIME);
 916
 917        $filename =~ /\.(.*?)$/;
 918        return $mimemap{$1};
 919}
 920
 921sub mimetype_guess {
 922        my $filename = shift;
 923        my $mime;
 924        $filename =~ /\./ or return undef;
 925
 926        if ($mimetypes_file) {
 927                my $file = $mimetypes_file;
 928                if ($file !~ m!^/!) { # if it is relative path
 929                        # it is relative to project
 930                        $file = "$projectroot/$project/$file";
 931                }
 932                $mime = mimetype_guess_file($filename, $file);
 933        }
 934        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
 935        return $mime;
 936}
 937
 938sub blob_mimetype {
 939        my $fd = shift;
 940        my $filename = shift;
 941
 942        if ($filename) {
 943                my $mime = mimetype_guess($filename);
 944                $mime and return $mime;
 945        }
 946
 947        # just in case
 948        return $default_blob_plain_mimetype unless $fd;
 949
 950        if (-T $fd) {
 951                return 'text/plain' .
 952                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
 953        } elsif (! $filename) {
 954                return 'application/octet-stream';
 955        } elsif ($filename =~ m/\.png$/i) {
 956                return 'image/png';
 957        } elsif ($filename =~ m/\.gif$/i) {
 958                return 'image/gif';
 959        } elsif ($filename =~ m/\.jpe?g$/i) {
 960                return 'image/jpeg';
 961        } else {
 962                return 'application/octet-stream';
 963        }
 964}
 965
 966## ======================================================================
 967## functions printing HTML: header, footer, error page
 968
 969sub git_header_html {
 970        my $status = shift || "200 OK";
 971        my $expires = shift;
 972
 973        my $title = "$site_name git";
 974        if (defined $project) {
 975                $title .= " - $project";
 976                if (defined $action) {
 977                        $title .= "/$action";
 978                        if (defined $file_name) {
 979                                $title .= " - $file_name";
 980                                if ($action eq "tree" && $file_name !~ m|/$|) {
 981                                        $title .= "/";
 982                                }
 983                        }
 984                }
 985        }
 986        my $content_type;
 987        # require explicit support from the UA if we are to send the page as
 988        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 989        # we have to do this because MSIE sometimes globs '*/*', pretending to
 990        # support xhtml+xml but choking when it gets what it asked for.
 991        if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
 992                $content_type = 'application/xhtml+xml';
 993        } else {
 994                $content_type = 'text/html';
 995        }
 996        print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
 997        print <<EOF;
 998<?xml version="1.0" encoding="utf-8"?>
 999<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1000<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1001<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1002<!-- git core binaries version $git_version -->
1003<head>
1004<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1005<meta name="generator" content="gitweb/$version git/$git_version"/>
1006<meta name="robots" content="index, nofollow"/>
1007<title>$title</title>
1008<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1009EOF
1010        if (defined $project) {
1011                printf('<link rel="alternate" title="%s log" '.
1012                       'href="%s" type="application/rss+xml"/>'."\n",
1013                       esc_param($project), href(action=>"rss"));
1014        }
1015
1016        print "</head>\n" .
1017              "<body>\n" .
1018              "<div class=\"page_header\">\n" .
1019              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1020              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1021              "</a>\n";
1022        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1023        if (defined $project) {
1024                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1025                if (defined $action) {
1026                        print " / $action";
1027                }
1028                print "\n";
1029                if (!defined $searchtext) {
1030                        $searchtext = "";
1031                }
1032                my $search_hash;
1033                if (defined $hash_base) {
1034                        $search_hash = $hash_base;
1035                } elsif (defined $hash) {
1036                        $search_hash = $hash;
1037                } else {
1038                        $search_hash = "HEAD";
1039                }
1040                $cgi->param("a", "search");
1041                $cgi->param("h", $search_hash);
1042                print $cgi->startform(-method => "get", -action => $my_uri) .
1043                      "<div class=\"search\">\n" .
1044                      $cgi->hidden(-name => "p") . "\n" .
1045                      $cgi->hidden(-name => "a") . "\n" .
1046                      $cgi->hidden(-name => "h") . "\n" .
1047                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1048                      "</div>" .
1049                      $cgi->end_form() . "\n";
1050        }
1051        print "</div>\n";
1052}
1053
1054sub git_footer_html {
1055        print "<div class=\"page_footer\">\n";
1056        if (defined $project) {
1057                my $descr = git_get_project_description($project);
1058                if (defined $descr) {
1059                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1060                }
1061                print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1062        } else {
1063                print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1064        }
1065        print "</div>\n" .
1066              "</body>\n" .
1067              "</html>";
1068}
1069
1070sub die_error {
1071        my $status = shift || "403 Forbidden";
1072        my $error = shift || "Malformed query, file missing or permission denied";
1073
1074        git_header_html($status);
1075        print "<div class=\"page_body\">\n" .
1076              "<br/><br/>\n" .
1077              "$status - $error\n" .
1078              "<br/>\n" .
1079              "</div>\n";
1080        git_footer_html();
1081        exit;
1082}
1083
1084## ----------------------------------------------------------------------
1085## functions printing or outputting HTML: navigation
1086
1087sub git_print_page_nav {
1088        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1089        $extra = '' if !defined $extra; # pager or formats
1090
1091        my @navs = qw(summary shortlog log commit commitdiff tree);
1092        if ($suppress) {
1093                @navs = grep { $_ ne $suppress } @navs;
1094        }
1095
1096        my %arg = map { $_ => {action=>$_} } @navs;
1097        if (defined $head) {
1098                for (qw(commit commitdiff)) {
1099                        $arg{$_}{hash} = $head;
1100                }
1101                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1102                        for (qw(shortlog log)) {
1103                                $arg{$_}{hash} = $head;
1104                        }
1105                }
1106        }
1107        $arg{tree}{hash} = $treehead if defined $treehead;
1108        $arg{tree}{hash_base} = $treebase if defined $treebase;
1109
1110        print "<div class=\"page_nav\">\n" .
1111                (join " | ",
1112                 map { $_ eq $current ?
1113                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1114                 } @navs);
1115        print "<br/>\n$extra<br/>\n" .
1116              "</div>\n";
1117}
1118
1119sub format_paging_nav {
1120        my ($action, $hash, $head, $page, $nrevs) = @_;
1121        my $paging_nav;
1122
1123
1124        if ($hash ne $head || $page) {
1125                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1126        } else {
1127                $paging_nav .= "HEAD";
1128        }
1129
1130        if ($page > 0) {
1131                $paging_nav .= " &sdot; " .
1132                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1133                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1134        } else {
1135                $paging_nav .= " &sdot; prev";
1136        }
1137
1138        if ($nrevs >= (100 * ($page+1)-1)) {
1139                $paging_nav .= " &sdot; " .
1140                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1141                                 -accesskey => "n", -title => "Alt-n"}, "next");
1142        } else {
1143                $paging_nav .= " &sdot; next";
1144        }
1145
1146        return $paging_nav;
1147}
1148
1149## ......................................................................
1150## functions printing or outputting HTML: div
1151
1152sub git_print_header_div {
1153        my ($action, $title, $hash, $hash_base) = @_;
1154        my %args = ();
1155
1156        $args{action} = $action;
1157        $args{hash} = $hash if $hash;
1158        $args{hash_base} = $hash_base if $hash_base;
1159
1160        print "<div class=\"header\">\n" .
1161              $cgi->a({-href => href(%args), -class => "title"},
1162              $title ? $title : $action) .
1163              "\n</div>\n";
1164}
1165
1166sub git_print_page_path {
1167        my $name = shift;
1168        my $type = shift;
1169
1170        if (!defined $name) {
1171                print "<div class=\"page_path\"><b>/</b></div>\n";
1172        } elsif (defined $type && $type eq 'blob') {
1173                print "<div class=\"page_path\"><b>" .
1174                        $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name)) . "</b><br/></div>\n";
1175        } else {
1176                print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1177        }
1178}
1179
1180## ......................................................................
1181## functions printing large fragments of HTML
1182
1183sub git_difftree_body {
1184        my ($difftree, $parent) = @_;
1185
1186        print "<div class=\"list_head\">\n";
1187        if ($#{$difftree} > 10) {
1188                print(($#{$difftree} + 1) . " files changed:\n");
1189        }
1190        print "</div>\n";
1191
1192        print "<table class=\"diff_tree\">\n";
1193        my $alternate = 0;
1194        foreach my $line (@{$difftree}) {
1195                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1196                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1197                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1198                        next;
1199                }
1200                my $from_mode = $1;
1201                my $to_mode = $2;
1202                my $from_id = $3;
1203                my $to_id = $4;
1204                my $status = $5;
1205                my $similarity = $6; # score
1206                my $file = validate_input(unquote($7));
1207
1208                if ($alternate) {
1209                        print "<tr class=\"dark\">\n";
1210                } else {
1211                        print "<tr class=\"light\">\n";
1212                }
1213                $alternate ^= 1;
1214
1215                if ($status eq "A") { # created
1216                        my $mode_chng = "";
1217                        if (S_ISREG(oct $to_mode)) {
1218                                $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1219                        }
1220                        print "<td>" .
1221                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1222                                      -class => "list"}, esc_html($file)) .
1223                              "</td>\n" .
1224                              "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1225                              "<td class=\"link\">" .
1226                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
1227                              "</td>\n";
1228
1229                } elsif ($status eq "D") { # deleted
1230                        print "<td>" .
1231                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
1232                                       -class => "list"}, esc_html($file)) . "</td>\n" .
1233                              "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1234                              "<td class=\"link\">" .
1235                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
1236                              $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
1237                              "</td>\n"
1238
1239                } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
1240                        my $mode_chnge = "";
1241                        if ($from_mode != $to_mode) {
1242                                $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
1243                                if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1244                                        $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1245                                }
1246                                if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1247                                        if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1248                                                $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1249                                        } elsif (S_ISREG($to_mode)) {
1250                                                $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1251                                        }
1252                                }
1253                                $mode_chnge .= "]</span>\n";
1254                        }
1255                        print "<td>";
1256                        if ($to_id ne $from_id) { # modified
1257                                print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
1258                                              -class => "list"}, esc_html($file));
1259                        } else { # mode changed
1260                                print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1261                                              -class => "list"}, esc_html($file));
1262                        }
1263                        print "</td>\n" .
1264                              "<td>$mode_chnge</td>\n" .
1265                              "<td class=\"link\">" .
1266                                $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
1267                        if ($to_id ne $from_id) { # modified
1268                                print " | " . $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file)}, "diff");
1269                        }
1270                        print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
1271                        print "</td>\n";
1272
1273                } elsif ($status eq "R") { # renamed
1274                        my ($from_file, $to_file) = split "\t", $file;
1275                        my $mode_chng = "";
1276                        if ($from_mode != $to_mode) {
1277                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1278                        }
1279                        print "<td>" .
1280                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1281                                      -class => "list"}, esc_html($to_file)) . "</td>\n" .
1282                              "<td><span class=\"file_status moved\">[moved from " .
1283                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1284                                      -class => "list"}, esc_html($from_file)) .
1285                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1286                              "<td class=\"link\">" .
1287                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1288                        if ($to_id ne $from_id) {
1289                                print " | " .
1290                                      $cgi->a({-href => "$my_uri?" .
1291                                              esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
1292                        }
1293                        print "</td>\n";
1294
1295                } elsif ($status eq "C") { # copied
1296                        my ($from_file, $to_file) = split "\t", $file;
1297                        my $mode_chng = "";
1298                        if ($from_mode != $to_mode) {
1299                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1300                        }
1301                        print "<td>" .
1302                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1303                                      -class => "list"}, esc_html($to_file)) . "</td>\n" .
1304                              "<td><span class=\"file_status copied\">[copied from " .
1305                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1306                                      -class => "list"}, esc_html($from_file)) .
1307                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1308                              "<td class=\"link\">" .
1309                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1310                        if ($to_id ne $from_id) {
1311                                print " | " .
1312                                      $cgi->a({-href => "$my_uri?" .
1313                                              esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
1314                        }
1315                        print "</td>\n";
1316                } # we should not encounter Unmerged (U) or Unknown (X) status
1317                print "</tr>\n";
1318        }
1319        print "</table>\n";
1320}
1321
1322sub git_shortlog_body {
1323        # uses global variable $project
1324        my ($revlist, $from, $to, $refs, $extra) = @_;
1325        $from = 0 unless defined $from;
1326        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1327
1328        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1329        my $alternate = 0;
1330        for (my $i = $from; $i <= $to; $i++) {
1331                my $commit = $revlist->[$i];
1332                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1333                my $ref = format_ref_marker($refs, $commit);
1334                my %co = parse_commit($commit);
1335                if ($alternate) {
1336                        print "<tr class=\"dark\">\n";
1337                } else {
1338                        print "<tr class=\"light\">\n";
1339                }
1340                $alternate ^= 1;
1341                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1342                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1343                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1344                      "<td>";
1345                print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1346                print "</td>\n" .
1347                      "<td class=\"link\">" .
1348                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1349                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
1350                      "</td>\n" .
1351                      "</tr>\n";
1352        }
1353        if (defined $extra) {
1354                print "<tr>\n" .
1355                      "<td colspan=\"4\">$extra</td>\n" .
1356                      "</tr>\n";
1357        }
1358        print "</table>\n";
1359}
1360
1361sub git_history_body {
1362        # Warning: assumes constant type (blob or tree) during history
1363        my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1364
1365        print "<table class=\"history\" cellspacing=\"0\">\n";
1366        my $alternate = 0;
1367        while (my $line = <$fd>) {
1368                if ($line !~ m/^([0-9a-fA-F]{40})/) {
1369                        next;
1370                }
1371
1372                my $commit = $1;
1373                my %co = parse_commit($commit);
1374                if (!%co) {
1375                        next;
1376                }
1377
1378                my $ref = format_ref_marker($refs, $commit);
1379
1380                if ($alternate) {
1381                        print "<tr class=\"dark\">\n";
1382                } else {
1383                        print "<tr class=\"light\">\n";
1384                }
1385                $alternate ^= 1;
1386                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1387                      # shortlog uses      chop_str($co{'author_name'}, 10)
1388                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1389                      "<td>";
1390                # originally git_history used chop_str($co{'title'}, 50)
1391                print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1392                print "</td>\n" .
1393                      "<td class=\"link\">" .
1394                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1395                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1396                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1397
1398                if ($ftype eq 'blob') {
1399                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1400                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1401                        if (defined $blob_current && defined $blob_parent &&
1402                                        $blob_current ne $blob_parent) {
1403                                print " | " .
1404                                        $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
1405                                                "diff to current");
1406                        }
1407                }
1408                print "</td>\n" .
1409                      "</tr>\n";
1410        }
1411        if (defined $extra) {
1412                print "<tr>\n" .
1413                      "<td colspan=\"4\">$extra</td>\n" .
1414                      "</tr>\n";
1415        }
1416        print "</table>\n";
1417}
1418
1419sub git_tags_body {
1420        # uses global variable $project
1421        my ($taglist, $from, $to, $extra) = @_;
1422        $from = 0 unless defined $from;
1423        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1424
1425        print "<table class=\"tags\" cellspacing=\"0\">\n";
1426        my $alternate = 0;
1427        for (my $i = $from; $i <= $to; $i++) {
1428                my $entry = $taglist->[$i];
1429                my %tag = %$entry;
1430                my $comment_lines = $tag{'comment'};
1431                my $comment = shift @$comment_lines;
1432                my $comment_short;
1433                if (defined $comment) {
1434                        $comment_short = chop_str($comment, 30, 5);
1435                }
1436                if ($alternate) {
1437                        print "<tr class=\"dark\">\n";
1438                } else {
1439                        print "<tr class=\"light\">\n";
1440                }
1441                $alternate ^= 1;
1442                print "<td><i>$tag{'age'}</i></td>\n" .
1443                      "<td>" .
1444                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1445                               -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1446                      "</td>\n" .
1447                      "<td>";
1448                if (defined $comment) {
1449                        print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
1450                }
1451                print "</td>\n" .
1452                      "<td class=\"selflink\">";
1453                if ($tag{'type'} eq "tag") {
1454                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1455                } else {
1456                        print "&nbsp;";
1457                }
1458                print "</td>\n" .
1459                      "<td class=\"link\">" . " | " .
1460                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1461                if ($tag{'reftype'} eq "commit") {
1462                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1463                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1464                } elsif ($tag{'reftype'} eq "blob") {
1465                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1466                }
1467                print "</td>\n" .
1468                      "</tr>";
1469        }
1470        if (defined $extra) {
1471                print "<tr>\n" .
1472                      "<td colspan=\"5\">$extra</td>\n" .
1473                      "</tr>\n";
1474        }
1475        print "</table>\n";
1476}
1477
1478sub git_heads_body {
1479        # uses global variable $project
1480        my ($taglist, $head, $from, $to, $extra) = @_;
1481        $from = 0 unless defined $from;
1482        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1483
1484        print "<table class=\"heads\" cellspacing=\"0\">\n";
1485        my $alternate = 0;
1486        for (my $i = $from; $i <= $to; $i++) {
1487                my $entry = $taglist->[$i];
1488                my %tag = %$entry;
1489                my $curr = $tag{'id'} eq $head;
1490                if ($alternate) {
1491                        print "<tr class=\"dark\">\n";
1492                } else {
1493                        print "<tr class=\"light\">\n";
1494                }
1495                $alternate ^= 1;
1496                print "<td><i>$tag{'age'}</i></td>\n" .
1497                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1498                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1499                               -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1500                      "</td>\n" .
1501                      "<td class=\"link\">" .
1502                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1503                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1504                      "</td>\n" .
1505                      "</tr>";
1506        }
1507        if (defined $extra) {
1508                print "<tr>\n" .
1509                      "<td colspan=\"3\">$extra</td>\n" .
1510                      "</tr>\n";
1511        }
1512        print "</table>\n";
1513}
1514
1515## ----------------------------------------------------------------------
1516## functions printing large fragments, format as one of arguments
1517
1518sub git_diff_print {
1519        my $from = shift;
1520        my $from_name = shift;
1521        my $to = shift;
1522        my $to_name = shift;
1523        my $format = shift || "html";
1524
1525        my $from_tmp = "/dev/null";
1526        my $to_tmp = "/dev/null";
1527        my $pid = $$;
1528
1529        # create tmp from-file
1530        if (defined $from) {
1531                $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1532                open my $fd2, "> $from_tmp";
1533                open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1534                my @file = <$fd>;
1535                print $fd2 @file;
1536                close $fd2;
1537                close $fd;
1538        }
1539
1540        # create tmp to-file
1541        if (defined $to) {
1542                $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1543                open my $fd2, "> $to_tmp";
1544                open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1545                my @file = <$fd>;
1546                print $fd2 @file;
1547                close $fd2;
1548                close $fd;
1549        }
1550
1551        open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1552        if ($format eq "plain") {
1553                undef $/;
1554                print <$fd>;
1555                $/ = "\n";
1556        } else {
1557                while (my $line = <$fd>) {
1558                        chomp $line;
1559                        my $char = substr($line, 0, 1);
1560                        my $diff_class = "";
1561                        if ($char eq '+') {
1562                                $diff_class = " add";
1563                        } elsif ($char eq "-") {
1564                                $diff_class = " rem";
1565                        } elsif ($char eq "@") {
1566                                $diff_class = " chunk_header";
1567                        } elsif ($char eq "\\") {
1568                                # skip errors
1569                                next;
1570                        }
1571                        $line = untabify($line);
1572                        print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1573                }
1574        }
1575        close $fd;
1576
1577        if (defined $from) {
1578                unlink($from_tmp);
1579        }
1580        if (defined $to) {
1581                unlink($to_tmp);
1582        }
1583}
1584
1585
1586## ======================================================================
1587## ======================================================================
1588## actions
1589
1590sub git_project_list {
1591        my $order = $cgi->param('o');
1592        if (defined $order && $order !~ m/project|descr|owner|age/) {
1593                die_error(undef, "Unknown order parameter");
1594        }
1595
1596        my @list = git_get_projects_list();
1597        my @projects;
1598        if (!@list) {
1599                die_error(undef, "No projects found");
1600        }
1601        foreach my $pr (@list) {
1602                my $head = git_get_head_hash($pr->{'path'});
1603                if (!defined $head) {
1604                        next;
1605                }
1606                $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1607                my %co = parse_commit($head);
1608                if (!%co) {
1609                        next;
1610                }
1611                $pr->{'commit'} = \%co;
1612                if (!defined $pr->{'descr'}) {
1613                        my $descr = git_get_project_description($pr->{'path'}) || "";
1614                        $pr->{'descr'} = chop_str($descr, 25, 5);
1615                }
1616                if (!defined $pr->{'owner'}) {
1617                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1618                }
1619                push @projects, $pr;
1620        }
1621
1622        git_header_html();
1623        if (-f $home_text) {
1624                print "<div class=\"index_include\">\n";
1625                open (my $fd, $home_text);
1626                print <$fd>;
1627                close $fd;
1628                print "</div>\n";
1629        }
1630        print "<table class=\"project_list\">\n" .
1631              "<tr>\n";
1632        $order ||= "project";
1633        if ($order eq "project") {
1634                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1635                print "<th>Project</th>\n";
1636        } else {
1637                print "<th>" .
1638                      $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1639                               -class => "header"}, "Project") .
1640                      "</th>\n";
1641        }
1642        if ($order eq "descr") {
1643                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1644                print "<th>Description</th>\n";
1645        } else {
1646                print "<th>" .
1647                      $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1648                               -class => "header"}, "Description") .
1649                      "</th>\n";
1650        }
1651        if ($order eq "owner") {
1652                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1653                print "<th>Owner</th>\n";
1654        } else {
1655                print "<th>" .
1656                      $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1657                               -class => "header"}, "Owner") .
1658                      "</th>\n";
1659        }
1660        if ($order eq "age") {
1661                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1662                print "<th>Last Change</th>\n";
1663        } else {
1664                print "<th>" .
1665                      $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1666                               -class => "header"}, "Last Change") .
1667                      "</th>\n";
1668        }
1669        print "<th></th>\n" .
1670              "</tr>\n";
1671        my $alternate = 0;
1672        foreach my $pr (@projects) {
1673                if ($alternate) {
1674                        print "<tr class=\"dark\">\n";
1675                } else {
1676                        print "<tr class=\"light\">\n";
1677                }
1678                $alternate ^= 1;
1679                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
1680                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1681                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1682                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1683                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
1684                      $pr->{'commit'}{'age_string'} . "</td>\n" .
1685                      "<td class=\"link\">" .
1686                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
1687                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
1688                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
1689                      "</td>\n" .
1690                      "</tr>\n";
1691        }
1692        print "</table>\n";
1693        git_footer_html();
1694}
1695
1696sub git_summary {
1697        my $descr = git_get_project_description($project) || "none";
1698        my $head = git_get_head_hash($project);
1699        my %co = parse_commit($head);
1700        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
1701
1702        my $owner = git_get_project_owner($project);
1703
1704        my $refs = git_get_references();
1705        git_header_html();
1706        git_print_page_nav('summary','', $head);
1707
1708        print "<div class=\"title\">&nbsp;</div>\n";
1709        print "<table cellspacing=\"0\">\n" .
1710              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1711              "<tr><td>owner</td><td>$owner</td></tr>\n" .
1712              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
1713        # use per project git URL list in $projectroot/$project/cloneurl
1714        # or make project git URL from git base URL and project name
1715        my $url_tag = "URL";
1716        my @url_list = git_get_project_url_list($project);
1717        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
1718        foreach my $git_url (@url_list) {
1719                next unless $git_url;
1720                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
1721                $url_tag = "";
1722        }
1723        print "</table>\n";
1724
1725        open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
1726                or die_error(undef, "Open git-rev-list failed");
1727        my @revlist = map { chomp; $_ } <$fd>;
1728        close $fd;
1729        git_print_header_div('shortlog');
1730        git_shortlog_body(\@revlist, 0, 15, $refs,
1731                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
1732
1733        my $taglist = git_get_refs_list("refs/tags");
1734        if (defined @$taglist) {
1735                git_print_header_div('tags');
1736                git_tags_body($taglist, 0, 15,
1737                              $cgi->a({-href => href(action=>"tags")}, "..."));
1738        }
1739
1740        my $headlist = git_get_refs_list("refs/heads");
1741        if (defined @$headlist) {
1742                git_print_header_div('heads');
1743                git_heads_body($headlist, $head, 0, 15,
1744                               $cgi->a({-href => href(action=>"heads")}, "..."));
1745        }
1746
1747        git_footer_html();
1748}
1749
1750sub git_tag {
1751        my $head = git_get_head_hash($project);
1752        git_header_html();
1753        git_print_page_nav('','', $head,undef,$head);
1754        my %tag = parse_tag($hash);
1755        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
1756        print "<div class=\"title_text\">\n" .
1757              "<table cellspacing=\"0\">\n" .
1758              "<tr>\n" .
1759              "<td>object</td>\n" .
1760              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
1761              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
1762              "</tr>\n";
1763        if (defined($tag{'author'})) {
1764                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
1765                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1766                print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1767        }
1768        print "</table>\n\n" .
1769              "</div>\n";
1770        print "<div class=\"page_body\">";
1771        my $comment = $tag{'comment'};
1772        foreach my $line (@$comment) {
1773                print esc_html($line) . "<br/>\n";
1774        }
1775        print "</div>\n";
1776        git_footer_html();
1777}
1778
1779sub git_blame2 {
1780        my $fd;
1781        my $ftype;
1782        die_error(undef, "Permission denied") if (!git_get_project_config_bool ('blame'));
1783        die_error('404 Not Found', "File name not defined") if (!$file_name);
1784        $hash_base ||= git_get_head_hash($project);
1785        die_error(undef, "Couldn't find base commit") unless ($hash_base);
1786        my %co = parse_commit($hash_base)
1787                or die_error(undef, "Reading commit failed");
1788        if (!defined $hash) {
1789                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1790                        or die_error(undef, "Error looking up file");
1791        }
1792        $ftype = git_get_type($hash);
1793        if ($ftype !~ "blob") {
1794                die_error("400 Bad Request", "Object is not a blob");
1795        }
1796        open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1797                or die_error(undef, "Open git-blame failed");
1798        git_header_html();
1799        my $formats_nav =
1800                $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1801                " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1802        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1803        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1804        git_print_page_path($file_name, $ftype);
1805        my @rev_color = (qw(light2 dark2));
1806        my $num_colors = scalar(@rev_color);
1807        my $current_color = 0;
1808        my $last_rev;
1809        print "<div class=\"page_body\">\n";
1810        print "<table class=\"blame\">\n";
1811        print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1812        while (<$fd>) {
1813                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1814                my $full_rev = $1;
1815                my $rev = substr($full_rev, 0, 8);
1816                my $lineno = $2;
1817                my $data = $3;
1818
1819                if (!defined $last_rev) {
1820                        $last_rev = $full_rev;
1821                } elsif ($last_rev ne $full_rev) {
1822                        $last_rev = $full_rev;
1823                        $current_color = ++$current_color % $num_colors;
1824                }
1825                print "<tr class=\"$rev_color[$current_color]\">\n";
1826                print "<td class=\"sha1\">" .
1827                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
1828                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1829                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1830                print "</tr>\n";
1831        }
1832        print "</table>\n";
1833        print "</div>";
1834        close $fd or print "Reading blob failed\n";
1835        git_footer_html();
1836}
1837
1838sub git_blame {
1839        my $fd;
1840        die_error('403 Permission denied', "Permission denied") if (!git_get_project_config_bool ('blame'));
1841        die_error('404 Not Found', "File name not defined") if (!$file_name);
1842        $hash_base ||= git_get_head_hash($project);
1843        die_error(undef, "Couldn't find base commit") unless ($hash_base);
1844        my %co = parse_commit($hash_base)
1845                or die_error(undef, "Reading commit failed");
1846        if (!defined $hash) {
1847                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1848                        or die_error(undef, "Error lookup file");
1849        }
1850        open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1851                or die_error(undef, "Open git-annotate failed");
1852        git_header_html();
1853        my $formats_nav =
1854                $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1855                " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1856        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1857        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1858        git_print_page_path($file_name, 'blob');
1859        print "<div class=\"page_body\">\n";
1860        print <<HTML;
1861<table class="blame">
1862  <tr>
1863    <th>Commit</th>
1864    <th>Age</th>
1865    <th>Author</th>
1866    <th>Line</th>
1867    <th>Data</th>
1868  </tr>
1869HTML
1870        my @line_class = (qw(light dark));
1871        my $line_class_len = scalar (@line_class);
1872        my $line_class_num = $#line_class;
1873        while (my $line = <$fd>) {
1874                my $long_rev;
1875                my $short_rev;
1876                my $author;
1877                my $time;
1878                my $lineno;
1879                my $data;
1880                my $age;
1881                my $age_str;
1882                my $age_class;
1883
1884                chomp $line;
1885                $line_class_num = ($line_class_num + 1) % $line_class_len;
1886
1887                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1888                        $long_rev = $1;
1889                        $author   = $2;
1890                        $time     = $3;
1891                        $lineno   = $4;
1892                        $data     = $5;
1893                } else {
1894                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1895                        next;
1896                }
1897                $short_rev  = substr ($long_rev, 0, 8);
1898                $age        = time () - $time;
1899                $age_str    = age_string ($age);
1900                $age_str    =~ s/ /&nbsp;/g;
1901                $age_class  = age_class($age);
1902                $author     = esc_html ($author);
1903                $author     =~ s/ /&nbsp;/g;
1904
1905                $data = untabify($data);
1906                $data = esc_html ($data);
1907
1908                print <<HTML;
1909  <tr class="$line_class[$line_class_num]">
1910    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
1911    <td class="$age_class">$age_str</td>
1912    <td>$author</td>
1913    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1914    <td class="pre">$data</td>
1915  </tr>
1916HTML
1917        } # while (my $line = <$fd>)
1918        print "</table>\n\n";
1919        close $fd or print "Reading blob failed.\n";
1920        print "</div>";
1921        git_footer_html();
1922}
1923
1924sub git_tags {
1925        my $head = git_get_head_hash($project);
1926        git_header_html();
1927        git_print_page_nav('','', $head,undef,$head);
1928        git_print_header_div('summary', $project);
1929
1930        my $taglist = git_get_refs_list("refs/tags");
1931        if (defined @$taglist) {
1932                git_tags_body($taglist);
1933        }
1934        git_footer_html();
1935}
1936
1937sub git_heads {
1938        my $head = git_get_head_hash($project);
1939        git_header_html();
1940        git_print_page_nav('','', $head,undef,$head);
1941        git_print_header_div('summary', $project);
1942
1943        my $taglist = git_get_refs_list("refs/heads");
1944        if (defined @$taglist) {
1945                git_heads_body($taglist, $head);
1946        }
1947        git_footer_html();
1948}
1949
1950sub git_blob_plain {
1951        if (!defined $hash) {
1952                if (defined $file_name) {
1953                        my $base = $hash_base || git_get_head_hash($project);
1954                        $hash = git_get_hash_by_path($base, $file_name, "blob")
1955                                or die_error(undef, "Error lookup file");
1956                } else {
1957                        die_error(undef, "No file name defined");
1958                }
1959        }
1960        my $type = shift;
1961        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1962                or die_error(undef, "Couldn't cat $file_name, $hash");
1963
1964        $type ||= blob_mimetype($fd, $file_name);
1965
1966        # save as filename, even when no $file_name is given
1967        my $save_as = "$hash";
1968        if (defined $file_name) {
1969                $save_as = $file_name;
1970        } elsif ($type =~ m/^text\//) {
1971                $save_as .= '.txt';
1972        }
1973
1974        print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1975        undef $/;
1976        binmode STDOUT, ':raw';
1977        print <$fd>;
1978        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1979        $/ = "\n";
1980        close $fd;
1981}
1982
1983sub git_blob {
1984        if (!defined $hash) {
1985                if (defined $file_name) {
1986                        my $base = $hash_base || git_get_head_hash($project);
1987                        $hash = git_get_hash_by_path($base, $file_name, "blob")
1988                                or die_error(undef, "Error lookup file");
1989                } else {
1990                        die_error(undef, "No file name defined");
1991                }
1992        }
1993        my $have_blame = git_get_project_config_bool ('blame');
1994        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1995                or die_error(undef, "Couldn't cat $file_name, $hash");
1996        my $mimetype = blob_mimetype($fd, $file_name);
1997        if ($mimetype !~ m/^text\//) {
1998                close $fd;
1999                return git_blob_plain($mimetype);
2000        }
2001        git_header_html();
2002        my $formats_nav = '';
2003        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2004                if (defined $file_name) {
2005                        if ($have_blame) {
2006                                $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
2007                        }
2008                        $formats_nav .=
2009                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
2010                                " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
2011                } else {
2012                        $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2013                }
2014                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2015                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2016        } else {
2017                print "<div class=\"page_nav\">\n" .
2018                      "<br/><br/></div>\n" .
2019                      "<div class=\"title\">$hash</div>\n";
2020        }
2021        git_print_page_path($file_name, "blob");
2022        print "<div class=\"page_body\">\n";
2023        my $nr;
2024        while (my $line = <$fd>) {
2025                chomp $line;
2026                $nr++;
2027                $line = untabify($line);
2028                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
2029        }
2030        close $fd or print "Reading blob failed.\n";
2031        print "</div>";
2032        git_footer_html();
2033}
2034
2035sub git_tree {
2036        if (!defined $hash) {
2037                $hash = git_get_head_hash($project);
2038                if (defined $file_name) {
2039                        my $base = $hash_base || $hash;
2040                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2041                }
2042                if (!defined $hash_base) {
2043                        $hash_base = $hash;
2044                }
2045        }
2046        $/ = "\0";
2047        open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2048                or die_error(undef, "Open git-ls-tree failed");
2049        my @entries = map { chomp; $_ } <$fd>;
2050        close $fd or die_error(undef, "Reading tree failed");
2051        $/ = "\n";
2052
2053        my $refs = git_get_references();
2054        my $ref = format_ref_marker($refs, $hash_base);
2055        git_header_html();
2056        my %base_key = ();
2057        my $base = "";
2058        my $have_blame = git_get_project_config_bool ('blame');
2059        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2060                $base_key{hash_base} = $hash_base;
2061                git_print_page_nav('tree','', $hash_base);
2062                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2063        } else {
2064                print "<div class=\"page_nav\">\n";
2065                print "<br/><br/></div>\n";
2066                print "<div class=\"title\">$hash</div>\n";
2067        }
2068        if (defined $file_name) {
2069                $base = esc_html("$file_name/");
2070        }
2071        git_print_page_path($file_name, 'tree');
2072        print "<div class=\"page_body\">\n";
2073        print "<table cellspacing=\"0\">\n";
2074        my $alternate = 0;
2075        foreach my $line (@entries) {
2076                #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2077                $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2078                my $t_mode = $1;
2079                my $t_type = $2;
2080                my $t_hash = $3;
2081                my $t_name = validate_input($4);
2082                if ($alternate) {
2083                        print "<tr class=\"dark\">\n";
2084                } else {
2085                        print "<tr class=\"light\">\n";
2086                }
2087                $alternate ^= 1;
2088                print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2089                if ($t_type eq "blob") {
2090                        print "<td class=\"list\">" .
2091                              $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key), -class => "list"}, esc_html($t_name)) .
2092                              "</td>\n" .
2093                              "<td class=\"link\">" .
2094                              $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blob");
2095                        if ($have_blame) {
2096                                print " | " . $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blame");
2097                        }
2098                        print " | " . $cgi->a({-href => href(action=>"history", hash=>$t_hash, hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2099                              " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$t_hash, file_name=>"$base$t_name")}, "raw") .
2100                              "</td>\n";
2101                } elsif ($t_type eq "tree") {
2102                        print "<td class=\"list\">" .
2103                              $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, esc_html($t_name)) .
2104                              "</td>\n" .
2105                              "<td class=\"link\">" .
2106                              $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "tree") .
2107                              " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2108                              "</td>\n";
2109                }
2110                print "</tr>\n";
2111        }
2112        print "</table>\n" .
2113              "</div>";
2114        git_footer_html();
2115}
2116
2117sub git_log {
2118        my $head = git_get_head_hash($project);
2119        if (!defined $hash) {
2120                $hash = $head;
2121        }
2122        if (!defined $page) {
2123                $page = 0;
2124        }
2125        my $refs = git_get_references();
2126
2127        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2128        open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2129                or die_error(undef, "Open git-rev-list failed");
2130        my @revlist = map { chomp; $_ } <$fd>;
2131        close $fd;
2132
2133        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2134
2135        git_header_html();
2136        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2137
2138        if (!@revlist) {
2139                my %co = parse_commit($hash);
2140
2141                git_print_header_div('summary', $project);
2142                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2143        }
2144        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2145                my $commit = $revlist[$i];
2146                my $ref = format_ref_marker($refs, $commit);
2147                my %co = parse_commit($commit);
2148                next if !%co;
2149                my %ad = parse_date($co{'author_epoch'});
2150                git_print_header_div('commit',
2151                               "<span class=\"age\">$co{'age_string'}</span>" .
2152                               esc_html($co{'title'}) . $ref,
2153                               $commit);
2154                print "<div class=\"title_text\">\n" .
2155                      "<div class=\"log_link\">\n" .
2156                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2157                      " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2158                      "<br/>\n" .
2159                      "</div>\n" .
2160                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2161                      "</div>\n" .
2162                      "<div class=\"log_body\">\n";
2163                my $comment = $co{'comment'};
2164                my $empty = 0;
2165                foreach my $line (@$comment) {
2166                        if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2167                                next;
2168                        }
2169                        if ($line eq "") {
2170                                if ($empty) {
2171                                        next;
2172                                }
2173                                $empty = 1;
2174                        } else {
2175                                $empty = 0;
2176                        }
2177                        print format_log_line_html($line) . "<br/>\n";
2178                }
2179                if (!$empty) {
2180                        print "<br/>\n";
2181                }
2182                print "</div>\n";
2183        }
2184        git_footer_html();
2185}
2186
2187sub git_commit {
2188        my %co = parse_commit($hash);
2189        if (!%co) {
2190                die_error(undef, "Unknown commit object");
2191        }
2192        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2193        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2194
2195        my $parent = $co{'parent'};
2196        if (!defined $parent) {
2197                $parent = "--root";
2198        }
2199        open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2200                or die_error(undef, "Open git-diff-tree failed");
2201        my @difftree = map { chomp; $_ } <$fd>;
2202        close $fd or die_error(undef, "Reading git-diff-tree failed");
2203
2204        # non-textual hash id's can be cached
2205        my $expires;
2206        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2207                $expires = "+1d";
2208        }
2209        my $refs = git_get_references();
2210        my $ref = format_ref_marker($refs, $co{'id'});
2211        my $formats_nav = '';
2212        if (defined $file_name && defined $co{'parent'}) {
2213                my $parent = $co{'parent'};
2214                $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
2215        }
2216        git_header_html(undef, $expires);
2217        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2218                     $hash, $co{'tree'}, $hash,
2219                     $formats_nav);
2220
2221        if (defined $co{'parent'}) {
2222                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2223        } else {
2224                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2225        }
2226        print "<div class=\"title_text\">\n" .
2227              "<table cellspacing=\"0\">\n";
2228        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2229              "<tr>" .
2230              "<td></td><td> $ad{'rfc2822'}";
2231        if ($ad{'hour_local'} < 6) {
2232                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2233        } else {
2234                printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2235        }
2236        print "</td>" .
2237              "</tr>\n";
2238        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2239        print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2240        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2241        print "<tr>" .
2242              "<td>tree</td>" .
2243              "<td class=\"sha1\">" .
2244              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
2245              "</td>" .
2246              "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree") .
2247              "</td>" .
2248              "</tr>\n";
2249        my $parents = $co{'parents'};
2250        foreach my $par (@$parents) {
2251                print "<tr>" .
2252                      "<td>parent</td>" .
2253                      "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
2254                      "<td class=\"link\">" .
2255                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2256                      " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2257                      "</td>" .
2258                      "</tr>\n";
2259        }
2260        print "</table>".
2261              "</div>\n";
2262        print "<div class=\"page_body\">\n";
2263        my $comment = $co{'comment'};
2264        my $empty = 0;
2265        my $signed = 0;
2266        foreach my $line (@$comment) {
2267                # print only one empty line
2268                if ($line eq "") {
2269                        if ($empty || $signed) {
2270                                next;
2271                        }
2272                        $empty = 1;
2273                } else {
2274                        $empty = 0;
2275                }
2276                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2277                        $signed = 1;
2278                        print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2279                } else {
2280                        $signed = 0;
2281                        print format_log_line_html($line) . "<br/>\n";
2282                }
2283        }
2284        print "</div>\n";
2285
2286        git_difftree_body(\@difftree, $parent);
2287
2288        git_footer_html();
2289}
2290
2291sub git_blobdiff {
2292        mkdir($git_temp, 0700);
2293        git_header_html();
2294        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2295                my $formats_nav =
2296                        $cgi->a({-href => href(action=>"blobdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2297                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2298                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2299        } else {
2300                print "<div class=\"page_nav\">\n" .
2301                      "<br/><br/></div>\n" .
2302                      "<div class=\"title\">$hash vs $hash_parent</div>\n";
2303        }
2304        git_print_page_path($file_name, "blob");
2305        print "<div class=\"page_body\">\n" .
2306              "<div class=\"diff_info\">blob:" .
2307              $cgi->a({-href => href(action=>"blob", hash=>$hash_parent, hash_base=>$hash_base, file_name=>$file_name)}, $hash_parent) .
2308              " -> blob:" .
2309              $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, $hash) .
2310              "</div>\n";
2311        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2312        print "</div>";
2313        git_footer_html();
2314}
2315
2316sub git_blobdiff_plain {
2317        mkdir($git_temp, 0700);
2318        print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2319        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2320}
2321
2322sub git_commitdiff {
2323        mkdir($git_temp, 0700);
2324        my %co = parse_commit($hash);
2325        if (!%co) {
2326                die_error(undef, "Unknown commit object");
2327        }
2328        if (!defined $hash_parent) {
2329                $hash_parent = $co{'parent'} || '--root';
2330        }
2331        open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2332                or die_error(undef, "Open git-diff-tree failed");
2333        my @difftree = map { chomp; $_ } <$fd>;
2334        close $fd or die_error(undef, "Reading git-diff-tree failed");
2335
2336        # non-textual hash id's can be cached
2337        my $expires;
2338        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2339                $expires = "+1d";
2340        }
2341        my $refs = git_get_references();
2342        my $ref = format_ref_marker($refs, $co{'id'});
2343        my $formats_nav =
2344                $cgi->a({-href => href(action=>"commitdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2345        git_header_html(undef, $expires);
2346        git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2347        git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2348        print "<div class=\"page_body\">\n";
2349        my $comment = $co{'comment'};
2350        my $empty = 0;
2351        my $signed = 0;
2352        my @log = @$comment;
2353        # remove first and empty lines after that
2354        shift @log;
2355        while (defined $log[0] && $log[0] eq "") {
2356                shift @log;
2357        }
2358        foreach my $line (@log) {
2359                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2360                        next;
2361                }
2362                if ($line eq "") {
2363                        if ($empty) {
2364                                next;
2365                        }
2366                        $empty = 1;
2367                } else {
2368                        $empty = 0;
2369                }
2370                print format_log_line_html($line) . "<br/>\n";
2371        }
2372        print "<br/>\n";
2373        foreach my $line (@difftree) {
2374                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2375                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2376                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2377                        next;
2378                }
2379                my $from_mode = $1;
2380                my $to_mode = $2;
2381                my $from_id = $3;
2382                my $to_id = $4;
2383                my $status = $5;
2384                my $file = validate_input(unquote($6));
2385                if ($status eq "A") {
2386                        print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2387                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) . "(new)" .
2388                              "</div>\n";
2389                        git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2390                } elsif ($status eq "D") {
2391                        print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2392                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) . "(deleted)" .
2393                              "</div>\n";
2394                        git_diff_print($from_id, "a/$file", undef, "/dev/null");
2395                } elsif ($status eq "M") {
2396                        if ($from_id ne $to_id) {
2397                                print "<div class=\"diff_info\">" .
2398                                      file_type($from_mode) . ":" .
2399                                      $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) .
2400                                      " -> " .
2401                                      file_type($to_mode) . ":" .
2402                                      $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) .
2403                                print "</div>\n";
2404                                git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2405                        }
2406                }
2407        }
2408        print "<br/>\n" .
2409              "</div>";
2410        git_footer_html();
2411}
2412
2413sub git_commitdiff_plain {
2414        mkdir($git_temp, 0700);
2415        my %co = parse_commit($hash);
2416        if (!%co) {
2417                die_error(undef, "Unknown commit object");
2418        }
2419        if (!defined $hash_parent) {
2420                $hash_parent = $co{'parent'} || '--root';
2421        }
2422        open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2423                or die_error(undef, "Open git-diff-tree failed");
2424        my @difftree = map { chomp; $_ } <$fd>;
2425        close $fd or die_error(undef, "Reading diff-tree failed");
2426
2427        # try to figure out the next tag after this commit
2428        my $tagname;
2429        my $refs = git_get_references("tags");
2430        open $fd, "-|", $GIT, "rev-list", "HEAD";
2431        my @commits = map { chomp; $_ } <$fd>;
2432        close $fd;
2433        foreach my $commit (@commits) {
2434                if (defined $refs->{$commit}) {
2435                        $tagname = $refs->{$commit}
2436                }
2437                if ($commit eq $hash) {
2438                        last;
2439                }
2440        }
2441
2442        print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2443        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2444        my $comment = $co{'comment'};
2445        print "From: $co{'author'}\n" .
2446              "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2447              "Subject: $co{'title'}\n";
2448        if (defined $tagname) {
2449                print "X-Git-Tag: $tagname\n";
2450        }
2451        print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2452              "\n";
2453
2454        foreach my $line (@$comment) {;
2455                print "$line\n";
2456        }
2457        print "---\n\n";
2458
2459        foreach my $line (@difftree) {
2460                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2461                        next;
2462                }
2463                my $from_id = $3;
2464                my $to_id = $4;
2465                my $status = $5;
2466                my $file = $6;
2467                if ($status eq "A") {
2468                        git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2469                } elsif ($status eq "D") {
2470                        git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2471                } elsif ($status eq "M") {
2472                        git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2473                }
2474        }
2475}
2476
2477sub git_history {
2478        if (!defined $hash_base) {
2479                $hash_base = git_get_head_hash($project);
2480        }
2481        my $ftype;
2482        my %co = parse_commit($hash_base);
2483        if (!%co) {
2484                die_error(undef, "Unknown commit object");
2485        }
2486        my $refs = git_get_references();
2487        git_header_html();
2488        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2489        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2490        if (!defined $hash && defined $file_name) {
2491                $hash = git_get_hash_by_path($hash_base, $file_name);
2492        }
2493        if (defined $hash) {
2494                $ftype = git_get_type($hash);
2495        }
2496        git_print_page_path($file_name, $ftype);
2497
2498        open my $fd, "-|",
2499                $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2500        git_history_body($fd, $refs, $hash_base, $ftype);
2501
2502        close $fd;
2503        git_footer_html();
2504}
2505
2506sub git_search {
2507        if (!defined $searchtext) {
2508                die_error(undef, "Text field empty");
2509        }
2510        if (!defined $hash) {
2511                $hash = git_get_head_hash($project);
2512        }
2513        my %co = parse_commit($hash);
2514        if (!%co) {
2515                die_error(undef, "Unknown commit object");
2516        }
2517        # pickaxe may take all resources of your box and run for several minutes
2518        # with every query - so decide by yourself how public you make this feature :)
2519        my $commit_search = 1;
2520        my $author_search = 0;
2521        my $committer_search = 0;
2522        my $pickaxe_search = 0;
2523        if ($searchtext =~ s/^author\\://i) {
2524                $author_search = 1;
2525        } elsif ($searchtext =~ s/^committer\\://i) {
2526                $committer_search = 1;
2527        } elsif ($searchtext =~ s/^pickaxe\\://i) {
2528                $commit_search = 0;
2529                $pickaxe_search = 1;
2530        }
2531        git_header_html();
2532        git_print_page_nav('','', $hash,$co{'tree'},$hash);
2533        git_print_header_div('commit', esc_html($co{'title'}), $hash);
2534
2535        print "<table cellspacing=\"0\">\n";
2536        my $alternate = 0;
2537        if ($commit_search) {
2538                $/ = "\0";
2539                open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2540                while (my $commit_text = <$fd>) {
2541                        if (!grep m/$searchtext/i, $commit_text) {
2542                                next;
2543                        }
2544                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2545                                next;
2546                        }
2547                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2548                                next;
2549                        }
2550                        my @commit_lines = split "\n", $commit_text;
2551                        my %co = parse_commit(undef, \@commit_lines);
2552                        if (!%co) {
2553                                next;
2554                        }
2555                        if ($alternate) {
2556                                print "<tr class=\"dark\">\n";
2557                        } else {
2558                                print "<tr class=\"light\">\n";
2559                        }
2560                        $alternate ^= 1;
2561                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2562                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2563                              "<td>" .
2564                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}) -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2565                        my $comment = $co{'comment'};
2566                        foreach my $line (@$comment) {
2567                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2568                                        my $lead = esc_html($1) || "";
2569                                        $lead = chop_str($lead, 30, 10);
2570                                        my $match = esc_html($2) || "";
2571                                        my $trail = esc_html($3) || "";
2572                                        $trail = chop_str($trail, 30, 10);
2573                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
2574                                        print chop_str($text, 80, 5) . "<br/>\n";
2575                                }
2576                        }
2577                        print "</td>\n" .
2578                              "<td class=\"link\">" .
2579                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2580                              " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2581                        print "</td>\n" .
2582                              "</tr>\n";
2583                }
2584                close $fd;
2585        }
2586
2587        if ($pickaxe_search) {
2588                $/ = "\n";
2589                open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2590                undef %co;
2591                my @files;
2592                while (my $line = <$fd>) {
2593                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2594                                my %set;
2595                                $set{'file'} = $6;
2596                                $set{'from_id'} = $3;
2597                                $set{'to_id'} = $4;
2598                                $set{'id'} = $set{'to_id'};
2599                                if ($set{'id'} =~ m/0{40}/) {
2600                                        $set{'id'} = $set{'from_id'};
2601                                }
2602                                if ($set{'id'} =~ m/0{40}/) {
2603                                        next;
2604                                }
2605                                push @files, \%set;
2606                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2607                                if (%co) {
2608                                        if ($alternate) {
2609                                                print "<tr class=\"dark\">\n";
2610                                        } else {
2611                                                print "<tr class=\"light\">\n";
2612                                        }
2613                                        $alternate ^= 1;
2614                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2615                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2616                                              "<td>" .
2617                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list"}, "<b>" .
2618                                              esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2619                                        while (my $setref = shift @files) {
2620                                                my %set = %$setref;
2621                                                print $cgi->a({-href => href(action=>"blob", hash=>$set{'id'}, hash_base=>$co{'id'}, file_name=>$set{'file'}), class => "list"},
2622                                                      "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2623                                                      "<br/>\n";
2624                                        }
2625                                        print "</td>\n" .
2626                                              "<td class=\"link\">" .
2627                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2628                                              " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2629                                        print "</td>\n" .
2630                                              "</tr>\n";
2631                                }
2632                                %co = parse_commit($1);
2633                        }
2634                }
2635                close $fd;
2636        }
2637        print "</table>\n";
2638        git_footer_html();
2639}
2640
2641sub git_shortlog {
2642        my $head = git_get_head_hash($project);
2643        if (!defined $hash) {
2644                $hash = $head;
2645        }
2646        if (!defined $page) {
2647                $page = 0;
2648        }
2649        my $refs = git_get_references();
2650
2651        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2652        open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2653                or die_error(undef, "Open git-rev-list failed");
2654        my @revlist = map { chomp; $_ } <$fd>;
2655        close $fd;
2656
2657        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2658        my $next_link = '';
2659        if ($#revlist >= (100 * ($page+1)-1)) {
2660                $next_link =
2661                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
2662                                 -title => "Alt-n"}, "next");
2663        }
2664
2665
2666        git_header_html();
2667        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2668        git_print_header_div('summary', $project);
2669
2670        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2671
2672        git_footer_html();
2673}
2674
2675## ......................................................................
2676## feeds (RSS, OPML)
2677
2678sub git_rss {
2679        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
2680        open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
2681                or die_error(undef, "Open git-rev-list failed");
2682        my @revlist = map { chomp; $_ } <$fd>;
2683        close $fd or die_error(undef, "Reading git-rev-list failed");
2684        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2685        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2686              "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
2687        print "<channel>\n";
2688        print "<title>$project</title>\n".
2689              "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
2690              "<description>$project log</description>\n".
2691              "<language>en</language>\n";
2692
2693        for (my $i = 0; $i <= $#revlist; $i++) {
2694                my $commit = $revlist[$i];
2695                my %co = parse_commit($commit);
2696                # we read 150, we always show 30 and the ones more recent than 48 hours
2697                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
2698                        last;
2699                }
2700                my %cd = parse_date($co{'committer_epoch'});
2701                open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
2702                my @difftree = map { chomp; $_ } <$fd>;
2703                close $fd or next;
2704                print "<item>\n" .
2705                      "<title>" .
2706                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
2707                      "</title>\n" .
2708                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
2709                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
2710                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
2711                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
2712                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
2713                      "<content:encoded>" .
2714                      "<![CDATA[\n";
2715                my $comment = $co{'comment'};
2716                foreach my $line (@$comment) {
2717                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
2718                        print "$line<br/>\n";
2719                }
2720                print "<br/>\n";
2721                foreach my $line (@difftree) {
2722                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2723                                next;
2724                        }
2725                        my $file = validate_input(unquote($7));
2726                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
2727                        print "$file<br/>\n";
2728                }
2729                print "]]>\n" .
2730                      "</content:encoded>\n" .
2731                      "</item>\n";
2732        }
2733        print "</channel></rss>";
2734}
2735
2736sub git_opml {
2737        my @list = git_get_projects_list();
2738
2739        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2740        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2741              "<opml version=\"1.0\">\n".
2742              "<head>".
2743              "  <title>$site_name Git OPML Export</title>\n".
2744              "</head>\n".
2745              "<body>\n".
2746              "<outline text=\"git RSS feeds\">\n";
2747
2748        foreach my $pr (@list) {
2749                my %proj = %$pr;
2750                my $head = git_get_head_hash($proj{'path'});
2751                if (!defined $head) {
2752                        next;
2753                }
2754                $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
2755                my %co = parse_commit($head);
2756                if (!%co) {
2757                        next;
2758                }
2759
2760                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
2761                my $rss  = "$my_url?p=$proj{'path'};a=rss";
2762                my $html = "$my_url?p=$proj{'path'};a=summary";
2763                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
2764        }
2765        print "</outline>\n".
2766              "</body>\n".
2767              "</opml>\n";
2768}