Andrew's git - gitweb.git/blob - gitweb/gitweb.perl

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44# filename of html text to include at top of each page
  45our $site_header = "++GITWEB_SITE_HEADER++";
  46# html text to include at home page
  47our $home_text = "++GITWEB_HOMETEXT++";
  48# filename of html text to include at bottom of each page
  49our $site_footer = "++GITWEB_SITE_FOOTER++";
  50
  51# URI of stylesheets
  52our @stylesheets = ("++GITWEB_CSS++");
  53our $stylesheet;
  54# default is not to define style sheet, but it can be overwritten later
  55undef $stylesheet;
  56
  57# URI of GIT logo
  58our $logo = "++GITWEB_LOGO++";
  59# URI of GIT favicon, assumed to be image/png type
  60our $favicon = "++GITWEB_FAVICON++";
  61
  62our $githelp_url = "http://git.or.cz/";
  63our $githelp_label = "git homepage";
  64
  65# source of projects list
  66our $projects_list = "++GITWEB_LIST++";
  67
  68# show repository only if this file exists
  69# (only effective if this variable evaluates to true)
  70our $export_ok = "++GITWEB_EXPORT_OK++";
  71
  72# only allow viewing of repositories also shown on the overview page
  73our $strict_export = "++GITWEB_STRICT_EXPORT++";
  74
  75# list of git base URLs used for URL to where fetch project from,
  76# i.e. full URL is "$git_base_url/$project"
  77our @git_base_url_list = ("++GITWEB_BASE_URL++");
  78
  79# default blob_plain mimetype and default charset for text/plain blob
  80our $default_blob_plain_mimetype = 'text/plain';
  81our $default_text_plain_charset  = undef;
  82
  83# file to use for guessing MIME types before trying /etc/mime.types
  84# (relative to the current git repository)
  85our $mimetypes_file = undef;
  86
  87# You define site-wide feature defaults here; override them with
  88# $GITWEB_CONFIG as necessary.
  89our %feature = (
  90        # feature => {
  91        #       'sub' => feature-sub (subroutine),
  92        #       'override' => allow-override (boolean),
  93        #       'default' => [ default options...] (array reference)}
  94        #
  95        # if feature is overridable (it means that allow-override has true value,
  96        # then feature-sub will be called with default options as parameters;
  97        # return value of feature-sub indicates if to enable specified feature
  98        #
  99        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 100
 101        'blame' => {
 102                'sub' => \&feature_blame,
 103                'override' => 0,
 104                'default' => [0]},
 105
 106        'snapshot' => {
 107                'sub' => \&feature_snapshot,
 108                'override' => 0,
 109                #         => [content-encoding, suffix, program]
 110                'default' => ['x-gzip', 'gz', 'gzip']},
 111
 112        'pickaxe' => {
 113                'sub' => \&feature_pickaxe,
 114                'override' => 0,
 115                'default' => [1]},
 116);
 117
 118sub gitweb_check_feature {
 119        my ($name) = @_;
 120        return unless exists $feature{$name};
 121        my ($sub, $override, @defaults) = (
 122                $feature{$name}{'sub'},
 123                $feature{$name}{'override'},
 124                @{$feature{$name}{'default'}});
 125        if (!$override) { return @defaults; }
 126        return $sub->(@defaults);
 127}
 128
 129# To enable system wide have in $GITWEB_CONFIG
 130# $feature{'blame'}{'default'} = [1];
 131# To have project specific config enable override in $GITWEB_CONFIG
 132# $feature{'blame'}{'override'} = 1;
 133# and in project config gitweb.blame = 0|1;
 134
 135sub feature_blame {
 136        my ($val) = git_get_project_config('blame', '--bool');
 137
 138        if ($val eq 'true') {
 139                return 1;
 140        } elsif ($val eq 'false') {
 141                return 0;
 142        }
 143
 144        return $_[0];
 145}
 146
 147# To disable system wide have in $GITWEB_CONFIG
 148# $feature{'snapshot'}{'default'} = [undef];
 149# To have project specific config enable override in $GITWEB_CONFIG
 150# $feature{'blame'}{'override'} = 1;
 151# and in project config  gitweb.snapshot = none|gzip|bzip2
 152
 153sub feature_snapshot {
 154        my ($ctype, $suffix, $command) = @_;
 155
 156        my ($val) = git_get_project_config('snapshot');
 157
 158        if ($val eq 'gzip') {
 159                return ('x-gzip', 'gz', 'gzip');
 160        } elsif ($val eq 'bzip2') {
 161                return ('x-bzip2', 'bz2', 'bzip2');
 162        } elsif ($val eq 'none') {
 163                return ();
 164        }
 165
 166        return ($ctype, $suffix, $command);
 167}
 168
 169sub gitweb_have_snapshot {
 170        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 171        my $have_snapshot = (defined $ctype && defined $suffix);
 172
 173        return $have_snapshot;
 174}
 175
 176# To enable system wide have in $GITWEB_CONFIG
 177# $feature{'pickaxe'}{'default'} = [1];
 178# To have project specific config enable override in $GITWEB_CONFIG
 179# $feature{'pickaxe'}{'override'} = 1;
 180# and in project config gitweb.pickaxe = 0|1;
 181
 182sub feature_pickaxe {
 183        my ($val) = git_get_project_config('pickaxe', '--bool');
 184
 185        if ($val eq 'true') {
 186                return (1);
 187        } elsif ($val eq 'false') {
 188                return (0);
 189        }
 190
 191        return ($_[0]);
 192}
 193
 194# checking HEAD file with -e is fragile if the repository was
 195# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 196# and then pruned.
 197sub check_head_link {
 198        my ($dir) = @_;
 199        my $headfile = "$dir/HEAD";
 200        return ((-e $headfile) ||
 201                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 202}
 203
 204sub check_export_ok {
 205        my ($dir) = @_;
 206        return (check_head_link($dir) &&
 207                (!$export_ok || -e "$dir/$export_ok"));
 208}
 209
 210# rename detection options for git-diff and git-diff-tree
 211# - default is '-M', with the cost proportional to
 212#   (number of removed files) * (number of new files).
 213# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 214#   (number of changed files + number of removed files) * (number of new files)
 215# - even more costly is '-C', '--find-copies-harder' with cost
 216#   (number of files in the original tree) * (number of new files)
 217# - one might want to include '-B' option, e.g. '-B', '-M'
 218our @diff_opts = ('-M'); # taken from git_commit
 219
 220our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 221do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 222
 223# version of the core git binary
 224our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 225
 226$projects_list ||= $projectroot;
 227
 228# ======================================================================
 229# input validation and dispatch
 230our $action = $cgi->param('a');
 231if (defined $action) {
 232        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 233                die_error(undef, "Invalid action parameter");
 234        }
 235}
 236
 237# parameters which are pathnames
 238our $project = $cgi->param('p');
 239if (defined $project) {
 240        if (!validate_pathname($project) ||
 241            !(-d "$projectroot/$project") ||
 242            !check_head_link("$projectroot/$project") ||
 243            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 244            ($strict_export && !project_in_list($project))) {
 245                undef $project;
 246                die_error(undef, "No such project");
 247        }
 248}
 249
 250our $file_name = $cgi->param('f');
 251if (defined $file_name) {
 252        if (!validate_pathname($file_name)) {
 253                die_error(undef, "Invalid file parameter");
 254        }
 255}
 256
 257our $file_parent = $cgi->param('fp');
 258if (defined $file_parent) {
 259        if (!validate_pathname($file_parent)) {
 260                die_error(undef, "Invalid file parent parameter");
 261        }
 262}
 263
 264# parameters which are refnames
 265our $hash = $cgi->param('h');
 266if (defined $hash) {
 267        if (!validate_refname($hash)) {
 268                die_error(undef, "Invalid hash parameter");
 269        }
 270}
 271
 272our $hash_parent = $cgi->param('hp');
 273if (defined $hash_parent) {
 274        if (!validate_refname($hash_parent)) {
 275                die_error(undef, "Invalid hash parent parameter");
 276        }
 277}
 278
 279our $hash_base = $cgi->param('hb');
 280if (defined $hash_base) {
 281        if (!validate_refname($hash_base)) {
 282                die_error(undef, "Invalid hash base parameter");
 283        }
 284}
 285
 286our $hash_parent_base = $cgi->param('hpb');
 287if (defined $hash_parent_base) {
 288        if (!validate_refname($hash_parent_base)) {
 289                die_error(undef, "Invalid hash parent base parameter");
 290        }
 291}
 292
 293# other parameters
 294our $page = $cgi->param('pg');
 295if (defined $page) {
 296        if ($page =~ m/[^0-9]/) {
 297                die_error(undef, "Invalid page parameter");
 298        }
 299}
 300
 301our $searchtext = $cgi->param('s');
 302if (defined $searchtext) {
 303        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 304                die_error(undef, "Invalid search parameter");
 305        }
 306        $searchtext = quotemeta $searchtext;
 307}
 308
 309# now read PATH_INFO and use it as alternative to parameters
 310sub evaluate_path_info {
 311        return if defined $project;
 312        my $path_info = $ENV{"PATH_INFO"};
 313        return if !$path_info;
 314        $path_info =~ s,^/+,,;
 315        return if !$path_info;
 316        # find which part of PATH_INFO is project
 317        $project = $path_info;
 318        $project =~ s,/+$,,;
 319        while ($project && !check_head_link("$projectroot/$project")) {
 320                $project =~ s,/*[^/]*$,,;
 321        }
 322        # validate project
 323        $project = validate_pathname($project);
 324        if (!$project ||
 325            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 326            ($strict_export && !project_in_list($project))) {
 327                undef $project;
 328                return;
 329        }
 330        # do not change any parameters if an action is given using the query string
 331        return if $action;
 332        $path_info =~ s,^$project/*,,;
 333        my ($refname, $pathname) = split(/:/, $path_info, 2);
 334        if (defined $pathname) {
 335                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 336                # we could use git_get_type(branch:pathname), but it needs $git_dir
 337                $pathname =~ s,^/+,,;
 338                if (!$pathname || substr($pathname, -1) eq "/") {
 339                        $action  ||= "tree";
 340                        $pathname =~ s,/$,,;
 341                } else {
 342                        $action  ||= "blob_plain";
 343                }
 344                $hash_base ||= validate_refname($refname);
 345                $file_name ||= validate_pathname($pathname);
 346        } elsif (defined $refname) {
 347                # we got "project.git/branch"
 348                $action ||= "shortlog";
 349                $hash   ||= validate_refname($refname);
 350        }
 351}
 352evaluate_path_info();
 353
 354# path to the current git repository
 355our $git_dir;
 356$git_dir = "$projectroot/$project" if $project;
 357
 358# dispatch
 359my %actions = (
 360        "blame" => \&git_blame2,
 361        "blobdiff" => \&git_blobdiff,
 362        "blobdiff_plain" => \&git_blobdiff_plain,
 363        "blob" => \&git_blob,
 364        "blob_plain" => \&git_blob_plain,
 365        "commitdiff" => \&git_commitdiff,
 366        "commitdiff_plain" => \&git_commitdiff_plain,
 367        "commit" => \&git_commit,
 368        "heads" => \&git_heads,
 369        "history" => \&git_history,
 370        "log" => \&git_log,
 371        "rss" => \&git_rss,
 372        "search" => \&git_search,
 373        "shortlog" => \&git_shortlog,
 374        "summary" => \&git_summary,
 375        "tag" => \&git_tag,
 376        "tags" => \&git_tags,
 377        "tree" => \&git_tree,
 378        "snapshot" => \&git_snapshot,
 379        # those below don't need $project
 380        "opml" => \&git_opml,
 381        "project_list" => \&git_project_list,
 382        "project_index" => \&git_project_index,
 383);
 384
 385if (defined $project) {
 386        $action ||= 'summary';
 387} else {
 388        $action ||= 'project_list';
 389}
 390if (!defined($actions{$action})) {
 391        die_error(undef, "Unknown action");
 392}
 393if ($action !~ m/^(opml|project_list|project_index)$/ &&
 394    !$project) {
 395        die_error(undef, "Project needed");
 396}
 397$actions{$action}->();
 398exit;
 399
 400## ======================================================================
 401## action links
 402
 403sub href(%) {
 404        my %params = @_;
 405
 406        my @mapping = (
 407                project => "p",
 408                action => "a",
 409                file_name => "f",
 410                file_parent => "fp",
 411                hash => "h",
 412                hash_parent => "hp",
 413                hash_base => "hb",
 414                hash_parent_base => "hpb",
 415                page => "pg",
 416                order => "o",
 417                searchtext => "s",
 418        );
 419        my %mapping = @mapping;
 420
 421        $params{'project'} = $project unless exists $params{'project'};
 422
 423        my @result = ();
 424        for (my $i = 0; $i < @mapping; $i += 2) {
 425                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 426                if (defined $params{$name}) {
 427                        push @result, $symbol . "=" . esc_param($params{$name});
 428                }
 429        }
 430        return "$my_uri?" . join(';', @result);
 431}
 432
 433
 434## ======================================================================
 435## validation, quoting/unquoting and escaping
 436
 437sub validate_pathname {
 438        my $input = shift || return undef;
 439
 440        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 441        # at the beginning, at the end, and between slashes.
 442        # also this catches doubled slashes
 443        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 444                return undef;
 445        }
 446        # no null characters
 447        if ($input =~ m!\0!) {
 448                return undef;
 449        }
 450        return $input;
 451}
 452
 453sub validate_refname {
 454        my $input = shift || return undef;
 455
 456        # textual hashes are O.K.
 457        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 458                return $input;
 459        }
 460        # it must be correct pathname
 461        $input = validate_pathname($input)
 462                or return undef;
 463        # restrictions on ref name according to git-check-ref-format
 464        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 465                return undef;
 466        }
 467        return $input;
 468}
 469
 470# quote unsafe chars, but keep the slash, even when it's not
 471# correct, but quoted slashes look too horrible in bookmarks
 472sub esc_param {
 473        my $str = shift;
 474        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 475        $str =~ s/\+/%2B/g;
 476        $str =~ s/ /\+/g;
 477        return $str;
 478}
 479
 480# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 481sub esc_url {
 482        my $str = shift;
 483        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 484        $str =~ s/\+/%2B/g;
 485        $str =~ s/ /\+/g;
 486        return $str;
 487}
 488
 489# replace invalid utf8 character with SUBSTITUTION sequence
 490sub esc_html {
 491        my $str = shift;
 492        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 493        $str = escapeHTML($str);
 494        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 495        $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 496        return $str;
 497}
 498
 499# git may return quoted and escaped filenames
 500sub unquote {
 501        my $str = shift;
 502        if ($str =~ m/^"(.*)"$/) {
 503                $str = $1;
 504                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 505        }
 506        return $str;
 507}
 508
 509# escape tabs (convert tabs to spaces)
 510sub untabify {
 511        my $line = shift;
 512
 513        while ((my $pos = index($line, "\t")) != -1) {
 514                if (my $count = (8 - ($pos % 8))) {
 515                        my $spaces = ' ' x $count;
 516                        $line =~ s/\t/$spaces/;
 517                }
 518        }
 519
 520        return $line;
 521}
 522
 523sub project_in_list {
 524        my $project = shift;
 525        my @list = git_get_projects_list();
 526        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 527}
 528
 529## ----------------------------------------------------------------------
 530## HTML aware string manipulation
 531
 532sub chop_str {
 533        my $str = shift;
 534        my $len = shift;
 535        my $add_len = shift || 10;
 536
 537        # allow only $len chars, but don't cut a word if it would fit in $add_len
 538        # if it doesn't fit, cut it if it's still longer than the dots we would add
 539        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 540        my $body = $1;
 541        my $tail = $2;
 542        if (length($tail) > 4) {
 543                $tail = " ...";
 544                $body =~ s/&[^;]*$//; # remove chopped character entities
 545        }
 546        return "$body$tail";
 547}
 548
 549## ----------------------------------------------------------------------
 550## functions returning short strings
 551
 552# CSS class for given age value (in seconds)
 553sub age_class {
 554        my $age = shift;
 555
 556        if ($age < 60*60*2) {
 557                return "age0";
 558        } elsif ($age < 60*60*24*2) {
 559                return "age1";
 560        } else {
 561                return "age2";
 562        }
 563}
 564
 565# convert age in seconds to "nn units ago" string
 566sub age_string {
 567        my $age = shift;
 568        my $age_str;
 569
 570        if ($age > 60*60*24*365*2) {
 571                $age_str = (int $age/60/60/24/365);
 572                $age_str .= " years ago";
 573        } elsif ($age > 60*60*24*(365/12)*2) {
 574                $age_str = int $age/60/60/24/(365/12);
 575                $age_str .= " months ago";
 576        } elsif ($age > 60*60*24*7*2) {
 577                $age_str = int $age/60/60/24/7;
 578                $age_str .= " weeks ago";
 579        } elsif ($age > 60*60*24*2) {
 580                $age_str = int $age/60/60/24;
 581                $age_str .= " days ago";
 582        } elsif ($age > 60*60*2) {
 583                $age_str = int $age/60/60;
 584                $age_str .= " hours ago";
 585        } elsif ($age > 60*2) {
 586                $age_str = int $age/60;
 587                $age_str .= " min ago";
 588        } elsif ($age > 2) {
 589                $age_str = int $age;
 590                $age_str .= " sec ago";
 591        } else {
 592                $age_str .= " right now";
 593        }
 594        return $age_str;
 595}
 596
 597# convert file mode in octal to symbolic file mode string
 598sub mode_str {
 599        my $mode = oct shift;
 600
 601        if (S_ISDIR($mode & S_IFMT)) {
 602                return 'drwxr-xr-x';
 603        } elsif (S_ISLNK($mode)) {
 604                return 'lrwxrwxrwx';
 605        } elsif (S_ISREG($mode)) {
 606                # git cares only about the executable bit
 607                if ($mode & S_IXUSR) {
 608                        return '-rwxr-xr-x';
 609                } else {
 610                        return '-rw-r--r--';
 611                };
 612        } else {
 613                return '----------';
 614        }
 615}
 616
 617# convert file mode in octal to file type string
 618sub file_type {
 619        my $mode = shift;
 620
 621        if ($mode !~ m/^[0-7]+$/) {
 622                return $mode;
 623        } else {
 624                $mode = oct $mode;
 625        }
 626
 627        if (S_ISDIR($mode & S_IFMT)) {
 628                return "directory";
 629        } elsif (S_ISLNK($mode)) {
 630                return "symlink";
 631        } elsif (S_ISREG($mode)) {
 632                return "file";
 633        } else {
 634                return "unknown";
 635        }
 636}
 637
 638## ----------------------------------------------------------------------
 639## functions returning short HTML fragments, or transforming HTML fragments
 640## which don't beling to other sections
 641
 642# format line of commit message or tag comment
 643sub format_log_line_html {
 644        my $line = shift;
 645
 646        $line = esc_html($line);
 647        $line =~ s/ /&nbsp;/g;
 648        if ($line =~ m/([0-9a-fA-F]{40})/) {
 649                my $hash_text = $1;
 650                if (git_get_type($hash_text) eq "commit") {
 651                        my $link =
 652                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 653                                        -class => "text"}, $hash_text);
 654                        $line =~ s/$hash_text/$link/;
 655                }
 656        }
 657        return $line;
 658}
 659
 660# format marker of refs pointing to given object
 661sub format_ref_marker {
 662        my ($refs, $id) = @_;
 663        my $markers = '';
 664
 665        if (defined $refs->{$id}) {
 666                foreach my $ref (@{$refs->{$id}}) {
 667                        my ($type, $name) = qw();
 668                        # e.g. tags/v2.6.11 or heads/next
 669                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 670                                $type = $1;
 671                                $name = $2;
 672                        } else {
 673                                $type = "ref";
 674                                $name = $ref;
 675                        }
 676
 677                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 678                }
 679        }
 680
 681        if ($markers) {
 682                return ' <span class="refs">'. $markers . '</span>';
 683        } else {
 684                return "";
 685        }
 686}
 687
 688# format, perhaps shortened and with markers, title line
 689sub format_subject_html {
 690        my ($long, $short, $href, $extra) = @_;
 691        $extra = '' unless defined($extra);
 692
 693        if (length($short) < length($long)) {
 694                return $cgi->a({-href => $href, -class => "list subject",
 695                                -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 696                       esc_html($short) . $extra);
 697        } else {
 698                return $cgi->a({-href => $href, -class => "list subject"},
 699                       esc_html($long)  . $extra);
 700        }
 701}
 702
 703sub format_diff_line {
 704        my $line = shift;
 705        my $char = substr($line, 0, 1);
 706        my $diff_class = "";
 707
 708        chomp $line;
 709
 710        if ($char eq '+') {
 711                $diff_class = " add";
 712        } elsif ($char eq "-") {
 713                $diff_class = " rem";
 714        } elsif ($char eq "@") {
 715                $diff_class = " chunk_header";
 716        } elsif ($char eq "\\") {
 717                $diff_class = " incomplete";
 718        }
 719        $line = untabify($line);
 720        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 721}
 722
 723## ----------------------------------------------------------------------
 724## git utility subroutines, invoking git commands
 725
 726# returns path to the core git executable and the --git-dir parameter as list
 727sub git_cmd {
 728        return $GIT, '--git-dir='.$git_dir;
 729}
 730
 731# returns path to the core git executable and the --git-dir parameter as string
 732sub git_cmd_str {
 733        return join(' ', git_cmd());
 734}
 735
 736# get HEAD ref of given project as hash
 737sub git_get_head_hash {
 738        my $project = shift;
 739        my $o_git_dir = $git_dir;
 740        my $retval = undef;
 741        $git_dir = "$projectroot/$project";
 742        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 743                my $head = <$fd>;
 744                close $fd;
 745                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 746                        $retval = $1;
 747                }
 748        }
 749        if (defined $o_git_dir) {
 750                $git_dir = $o_git_dir;
 751        }
 752        return $retval;
 753}
 754
 755# get type of given object
 756sub git_get_type {
 757        my $hash = shift;
 758
 759        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 760        my $type = <$fd>;
 761        close $fd or return;
 762        chomp $type;
 763        return $type;
 764}
 765
 766sub git_get_project_config {
 767        my ($key, $type) = @_;
 768
 769        return unless ($key);
 770        $key =~ s/^gitweb\.//;
 771        return if ($key =~ m/\W/);
 772
 773        my @x = (git_cmd(), 'repo-config');
 774        if (defined $type) { push @x, $type; }
 775        push @x, "--get";
 776        push @x, "gitweb.$key";
 777        my $val = qx(@x);
 778        chomp $val;
 779        return ($val);
 780}
 781
 782# get hash of given path at given ref
 783sub git_get_hash_by_path {
 784        my $base = shift;
 785        my $path = shift || return undef;
 786        my $type = shift;
 787
 788        $path =~ s,/+$,,;
 789
 790        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 791                or die_error(undef, "Open git-ls-tree failed");
 792        my $line = <$fd>;
 793        close $fd or return undef;
 794
 795        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 796        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 797        if (defined $type && $type ne $2) {
 798                # type doesn't match
 799                return undef;
 800        }
 801        return $3;
 802}
 803
 804## ......................................................................
 805## git utility functions, directly accessing git repository
 806
 807sub git_get_project_description {
 808        my $path = shift;
 809
 810        open my $fd, "$projectroot/$path/description" or return undef;
 811        my $descr = <$fd>;
 812        close $fd;
 813        chomp $descr;
 814        return $descr;
 815}
 816
 817sub git_get_project_url_list {
 818        my $path = shift;
 819
 820        open my $fd, "$projectroot/$path/cloneurl" or return;
 821        my @git_project_url_list = map { chomp; $_ } <$fd>;
 822        close $fd;
 823
 824        return wantarray ? @git_project_url_list : \@git_project_url_list;
 825}
 826
 827sub git_get_projects_list {
 828        my @list;
 829
 830        if (-d $projects_list) {
 831                # search in directory
 832                my $dir = $projects_list;
 833                my $pfxlen = length("$dir");
 834
 835                File::Find::find({
 836                        follow_fast => 1, # follow symbolic links
 837                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 838                        wanted => sub {
 839                                # skip project-list toplevel, if we get it.
 840                                return if (m!^[/.]$!);
 841                                # only directories can be git repositories
 842                                return unless (-d $_);
 843
 844                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 845                                # we check related file in $projectroot
 846                                if (check_export_ok("$projectroot/$subdir")) {
 847                                        push @list, { path => $subdir };
 848                                        $File::Find::prune = 1;
 849                                }
 850                        },
 851                }, "$dir");
 852
 853        } elsif (-f $projects_list) {
 854                # read from file(url-encoded):
 855                # 'git%2Fgit.git Linus+Torvalds'
 856                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 857                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 858                open my ($fd), $projects_list or return;
 859                while (my $line = <$fd>) {
 860                        chomp $line;
 861                        my ($path, $owner) = split ' ', $line;
 862                        $path = unescape($path);
 863                        $owner = unescape($owner);
 864                        if (!defined $path) {
 865                                next;
 866                        }
 867                        if (check_export_ok("$projectroot/$path")) {
 868                                my $pr = {
 869                                        path => $path,
 870                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 871                                };
 872                                push @list, $pr
 873                        }
 874                }
 875                close $fd;
 876        }
 877        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 878        return @list;
 879}
 880
 881sub git_get_project_owner {
 882        my $project = shift;
 883        my $owner;
 884
 885        return undef unless $project;
 886
 887        # read from file (url-encoded):
 888        # 'git%2Fgit.git Linus+Torvalds'
 889        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 890        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 891        if (-f $projects_list) {
 892                open (my $fd , $projects_list);
 893                while (my $line = <$fd>) {
 894                        chomp $line;
 895                        my ($pr, $ow) = split ' ', $line;
 896                        $pr = unescape($pr);
 897                        $ow = unescape($ow);
 898                        if ($pr eq $project) {
 899                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 900                                last;
 901                        }
 902                }
 903                close $fd;
 904        }
 905        if (!defined $owner) {
 906                $owner = get_file_owner("$projectroot/$project");
 907        }
 908
 909        return $owner;
 910}
 911
 912sub git_get_references {
 913        my $type = shift || "";
 914        my %refs;
 915        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 916        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 917        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 918                or return;
 919
 920        while (my $line = <$fd>) {
 921                chomp $line;
 922                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 923                        if (defined $refs{$1}) {
 924                                push @{$refs{$1}}, $2;
 925                        } else {
 926                                $refs{$1} = [ $2 ];
 927                        }
 928                }
 929        }
 930        close $fd or return;
 931        return \%refs;
 932}
 933
 934sub git_get_rev_name_tags {
 935        my $hash = shift || return undef;
 936
 937        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 938                or return;
 939        my $name_rev = <$fd>;
 940        close $fd;
 941
 942        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 943                return $1;
 944        } else {
 945                # catches also '$hash undefined' output
 946                return undef;
 947        }
 948}
 949
 950## ----------------------------------------------------------------------
 951## parse to hash functions
 952
 953sub parse_date {
 954        my $epoch = shift;
 955        my $tz = shift || "-0000";
 956
 957        my %date;
 958        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 959        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 960        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 961        $date{'hour'} = $hour;
 962        $date{'minute'} = $min;
 963        $date{'mday'} = $mday;
 964        $date{'day'} = $days[$wday];
 965        $date{'month'} = $months[$mon];
 966        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 967                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 968        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 969                             $mday, $months[$mon], $hour ,$min;
 970
 971        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 972        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 973        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 974        $date{'hour_local'} = $hour;
 975        $date{'minute_local'} = $min;
 976        $date{'tz_local'} = $tz;
 977        $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
 978                                   1900+$year, $mon+1, $mday,
 979                                   $hour, $min, $sec, $tz);
 980        return %date;
 981}
 982
 983sub parse_tag {
 984        my $tag_id = shift;
 985        my %tag;
 986        my @comment;
 987
 988        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 989        $tag{'id'} = $tag_id;
 990        while (my $line = <$fd>) {
 991                chomp $line;
 992                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 993                        $tag{'object'} = $1;
 994                } elsif ($line =~ m/^type (.+)$/) {
 995                        $tag{'type'} = $1;
 996                } elsif ($line =~ m/^tag (.+)$/) {
 997                        $tag{'name'} = $1;
 998                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 999                        $tag{'author'} = $1;
1000                        $tag{'epoch'} = $2;
1001                        $tag{'tz'} = $3;
1002                } elsif ($line =~ m/--BEGIN/) {
1003                        push @comment, $line;
1004                        last;
1005                } elsif ($line eq "") {
1006                        last;
1007                }
1008        }
1009        push @comment, <$fd>;
1010        $tag{'comment'} = \@comment;
1011        close $fd or return;
1012        if (!defined $tag{'name'}) {
1013                return
1014        };
1015        return %tag
1016}
1017
1018sub parse_commit {
1019        my $commit_id = shift;
1020        my $commit_text = shift;
1021
1022        my @commit_lines;
1023        my %co;
1024
1025        if (defined $commit_text) {
1026                @commit_lines = @$commit_text;
1027        } else {
1028                $/ = "\0";
1029                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1030                        or return;
1031                @commit_lines = split '\n', <$fd>;
1032                close $fd or return;
1033                $/ = "\n";
1034                pop @commit_lines;
1035        }
1036        my $header = shift @commit_lines;
1037        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1038                return;
1039        }
1040        ($co{'id'}, my @parents) = split ' ', $header;
1041        $co{'parents'} = \@parents;
1042        $co{'parent'} = $parents[0];
1043        while (my $line = shift @commit_lines) {
1044                last if $line eq "\n";
1045                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1046                        $co{'tree'} = $1;
1047                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1048                        $co{'author'} = $1;
1049                        $co{'author_epoch'} = $2;
1050                        $co{'author_tz'} = $3;
1051                        if ($co{'author'} =~ m/^([^<]+) </) {
1052                                $co{'author_name'} = $1;
1053                        } else {
1054                                $co{'author_name'} = $co{'author'};
1055                        }
1056                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1057                        $co{'committer'} = $1;
1058                        $co{'committer_epoch'} = $2;
1059                        $co{'committer_tz'} = $3;
1060                        $co{'committer_name'} = $co{'committer'};
1061                        $co{'committer_name'} =~ s/ <.*//;
1062                }
1063        }
1064        if (!defined $co{'tree'}) {
1065                return;
1066        };
1067
1068        foreach my $title (@commit_lines) {
1069                $title =~ s/^    //;
1070                if ($title ne "") {
1071                        $co{'title'} = chop_str($title, 80, 5);
1072                        # remove leading stuff of merges to make the interesting part visible
1073                        if (length($title) > 50) {
1074                                $title =~ s/^Automatic //;
1075                                $title =~ s/^merge (of|with) /Merge ... /i;
1076                                if (length($title) > 50) {
1077                                        $title =~ s/(http|rsync):\/\///;
1078                                }
1079                                if (length($title) > 50) {
1080                                        $title =~ s/(master|www|rsync)\.//;
1081                                }
1082                                if (length($title) > 50) {
1083                                        $title =~ s/kernel.org:?//;
1084                                }
1085                                if (length($title) > 50) {
1086                                        $title =~ s/\/pub\/scm//;
1087                                }
1088                        }
1089                        $co{'title_short'} = chop_str($title, 50, 5);
1090                        last;
1091                }
1092        }
1093        # remove added spaces
1094        foreach my $line (@commit_lines) {
1095                $line =~ s/^    //;
1096        }
1097        $co{'comment'} = \@commit_lines;
1098
1099        my $age = time - $co{'committer_epoch'};
1100        $co{'age'} = $age;
1101        $co{'age_string'} = age_string($age);
1102        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1103        if ($age > 60*60*24*7*2) {
1104                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1105                $co{'age_string_age'} = $co{'age_string'};
1106        } else {
1107                $co{'age_string_date'} = $co{'age_string'};
1108                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1109        }
1110        return %co;
1111}
1112
1113# parse ref from ref_file, given by ref_id, with given type
1114sub parse_ref {
1115        my $ref_file = shift;
1116        my $ref_id = shift;
1117        my $type = shift || git_get_type($ref_id);
1118        my %ref_item;
1119
1120        $ref_item{'type'} = $type;
1121        $ref_item{'id'} = $ref_id;
1122        $ref_item{'epoch'} = 0;
1123        $ref_item{'age'} = "unknown";
1124        if ($type eq "tag") {
1125                my %tag = parse_tag($ref_id);
1126                $ref_item{'comment'} = $tag{'comment'};
1127                if ($tag{'type'} eq "commit") {
1128                        my %co = parse_commit($tag{'object'});
1129                        $ref_item{'epoch'} = $co{'committer_epoch'};
1130                        $ref_item{'age'} = $co{'age_string'};
1131                } elsif (defined($tag{'epoch'})) {
1132                        my $age = time - $tag{'epoch'};
1133                        $ref_item{'epoch'} = $tag{'epoch'};
1134                        $ref_item{'age'} = age_string($age);
1135                }
1136                $ref_item{'reftype'} = $tag{'type'};
1137                $ref_item{'name'} = $tag{'name'};
1138                $ref_item{'refid'} = $tag{'object'};
1139        } elsif ($type eq "commit"){
1140                my %co = parse_commit($ref_id);
1141                $ref_item{'reftype'} = "commit";
1142                $ref_item{'name'} = $ref_file;
1143                $ref_item{'title'} = $co{'title'};
1144                $ref_item{'refid'} = $ref_id;
1145                $ref_item{'epoch'} = $co{'committer_epoch'};
1146                $ref_item{'age'} = $co{'age_string'};
1147        } else {
1148                $ref_item{'reftype'} = $type;
1149                $ref_item{'name'} = $ref_file;
1150                $ref_item{'refid'} = $ref_id;
1151        }
1152
1153        return %ref_item;
1154}
1155
1156# parse line of git-diff-tree "raw" output
1157sub parse_difftree_raw_line {
1158        my $line = shift;
1159        my %res;
1160
1161        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1162        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1163        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1164                $res{'from_mode'} = $1;
1165                $res{'to_mode'} = $2;
1166                $res{'from_id'} = $3;
1167                $res{'to_id'} = $4;
1168                $res{'status'} = $5;
1169                $res{'similarity'} = $6;
1170                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1171                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1172                } else {
1173                        $res{'file'} = unquote($7);
1174                }
1175        }
1176        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1177        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1178                $res{'commit'} = $1;
1179        }
1180
1181        return wantarray ? %res : \%res;
1182}
1183
1184# parse line of git-ls-tree output
1185sub parse_ls_tree_line ($;%) {
1186        my $line = shift;
1187        my %opts = @_;
1188        my %res;
1189
1190        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1191        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1192
1193        $res{'mode'} = $1;
1194        $res{'type'} = $2;
1195        $res{'hash'} = $3;
1196        if ($opts{'-z'}) {
1197                $res{'name'} = $4;
1198        } else {
1199                $res{'name'} = unquote($4);
1200        }
1201
1202        return wantarray ? %res : \%res;
1203}
1204
1205## ......................................................................
1206## parse to array of hashes functions
1207
1208sub git_get_refs_list {
1209        my $type = shift || "";
1210        my %refs;
1211        my @reflist;
1212
1213        my @refs;
1214        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1215                or return;
1216        while (my $line = <$fd>) {
1217                chomp $line;
1218                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1219                        if (defined $refs{$1}) {
1220                                push @{$refs{$1}}, $2;
1221                        } else {
1222                                $refs{$1} = [ $2 ];
1223                        }
1224
1225                        if (! $4) { # unpeeled, direct reference
1226                                push @refs, { hash => $1, name => $3 }; # without type
1227                        } elsif ($3 eq $refs[-1]{'name'}) {
1228                                # most likely a tag is followed by its peeled
1229                                # (deref) one, and when that happens we know the
1230                                # previous one was of type 'tag'.
1231                                $refs[-1]{'type'} = "tag";
1232                        }
1233                }
1234        }
1235        close $fd;
1236
1237        foreach my $ref (@refs) {
1238                my $ref_file = $ref->{'name'};
1239                my $ref_id   = $ref->{'hash'};
1240
1241                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1242                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1243
1244                push @reflist, \%ref_item;
1245        }
1246        # sort refs by age
1247        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1248        return (\@reflist, \%refs);
1249}
1250
1251## ----------------------------------------------------------------------
1252## filesystem-related functions
1253
1254sub get_file_owner {
1255        my $path = shift;
1256
1257        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1258        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1259        if (!defined $gcos) {
1260                return undef;
1261        }
1262        my $owner = $gcos;
1263        $owner =~ s/[,;].*$//;
1264        return decode("utf8", $owner, Encode::FB_DEFAULT);
1265}
1266
1267## ......................................................................
1268## mimetype related functions
1269
1270sub mimetype_guess_file {
1271        my $filename = shift;
1272        my $mimemap = shift;
1273        -r $mimemap or return undef;
1274
1275        my %mimemap;
1276        open(MIME, $mimemap) or return undef;
1277        while (<MIME>) {
1278                next if m/^#/; # skip comments
1279                my ($mime, $exts) = split(/\t+/);
1280                if (defined $exts) {
1281                        my @exts = split(/\s+/, $exts);
1282                        foreach my $ext (@exts) {
1283                                $mimemap{$ext} = $mime;
1284                        }
1285                }
1286        }
1287        close(MIME);
1288
1289        $filename =~ /\.([^.]*)$/;
1290        return $mimemap{$1};
1291}
1292
1293sub mimetype_guess {
1294        my $filename = shift;
1295        my $mime;
1296        $filename =~ /\./ or return undef;
1297
1298        if ($mimetypes_file) {
1299                my $file = $mimetypes_file;
1300                if ($file !~ m!^/!) { # if it is relative path
1301                        # it is relative to project
1302                        $file = "$projectroot/$project/$file";
1303                }
1304                $mime = mimetype_guess_file($filename, $file);
1305        }
1306        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1307        return $mime;
1308}
1309
1310sub blob_mimetype {
1311        my $fd = shift;
1312        my $filename = shift;
1313
1314        if ($filename) {
1315                my $mime = mimetype_guess($filename);
1316                $mime and return $mime;
1317        }
1318
1319        # just in case
1320        return $default_blob_plain_mimetype unless $fd;
1321
1322        if (-T $fd) {
1323                return 'text/plain' .
1324                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1325        } elsif (! $filename) {
1326                return 'application/octet-stream';
1327        } elsif ($filename =~ m/\.png$/i) {
1328                return 'image/png';
1329        } elsif ($filename =~ m/\.gif$/i) {
1330                return 'image/gif';
1331        } elsif ($filename =~ m/\.jpe?g$/i) {
1332                return 'image/jpeg';
1333        } else {
1334                return 'application/octet-stream';
1335        }
1336}
1337
1338## ======================================================================
1339## functions printing HTML: header, footer, error page
1340
1341sub git_header_html {
1342        my $status = shift || "200 OK";
1343        my $expires = shift;
1344
1345        my $title = "$site_name git";
1346        if (defined $project) {
1347                $title .= " - $project";
1348                if (defined $action) {
1349                        $title .= "/$action";
1350                        if (defined $file_name) {
1351                                $title .= " - " . esc_html($file_name);
1352                                if ($action eq "tree" && $file_name !~ m|/$|) {
1353                                        $title .= "/";
1354                                }
1355                        }
1356                }
1357        }
1358        my $content_type;
1359        # require explicit support from the UA if we are to send the page as
1360        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1361        # we have to do this because MSIE sometimes globs '*/*', pretending to
1362        # support xhtml+xml but choking when it gets what it asked for.
1363        if (defined $cgi->http('HTTP_ACCEPT') &&
1364            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1365            $cgi->Accept('application/xhtml+xml') != 0) {
1366                $content_type = 'application/xhtml+xml';
1367        } else {
1368                $content_type = 'text/html';
1369        }
1370        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1371                           -status=> $status, -expires => $expires);
1372        print <<EOF;
1373<?xml version="1.0" encoding="utf-8"?>
1374<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1375<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1376<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1377<!-- git core binaries version $git_version -->
1378<head>
1379<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1380<meta name="generator" content="gitweb/$version git/$git_version"/>
1381<meta name="robots" content="index, nofollow"/>
1382<title>$title</title>
1383EOF
1384# print out each stylesheet that exist
1385        if (defined $stylesheet) {
1386#provides backwards capability for those people who define style sheet in a config file
1387                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1388        } else {
1389                foreach my $stylesheet (@stylesheets) {
1390                        next unless $stylesheet;
1391                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1392                }
1393        }
1394        if (defined $project) {
1395                printf('<link rel="alternate" title="%s log" '.
1396                       'href="%s" type="application/rss+xml"/>'."\n",
1397                       esc_param($project), href(action=>"rss"));
1398        } else {
1399                printf('<link rel="alternate" title="%s projects list" '.
1400                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1401                       $site_name, href(project=>undef, action=>"project_index"));
1402                printf('<link rel="alternate" title="%s projects logs" '.
1403                       'href="%s" type="text/x-opml"/>'."\n",
1404                       $site_name, href(project=>undef, action=>"opml"));
1405        }
1406        if (defined $favicon) {
1407                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1408        }
1409
1410        print "</head>\n" .
1411              "<body>\n";
1412
1413        if (-f $site_header) {
1414                open (my $fd, $site_header);
1415                print <$fd>;
1416                close $fd;
1417        }
1418
1419        print "<div class=\"page_header\">\n" .
1420              "<a href=\"" . esc_html($githelp_url) .
1421              "\" title=\"" . esc_html($githelp_label) .
1422              "\">" .
1423              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1424              "</a>\n";
1425        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1426        if (defined $project) {
1427                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1428                if (defined $action) {
1429                        print " / $action";
1430                }
1431                print "\n";
1432                if (!defined $searchtext) {
1433                        $searchtext = "";
1434                }
1435                my $search_hash;
1436                if (defined $hash_base) {
1437                        $search_hash = $hash_base;
1438                } elsif (defined $hash) {
1439                        $search_hash = $hash;
1440                } else {
1441                        $search_hash = "HEAD";
1442                }
1443                $cgi->param("a", "search");
1444                $cgi->param("h", $search_hash);
1445                print $cgi->startform(-method => "get", -action => $my_uri) .
1446                      "<div class=\"search\">\n" .
1447                      $cgi->hidden(-name => "p") . "\n" .
1448                      $cgi->hidden(-name => "a") . "\n" .
1449                      $cgi->hidden(-name => "h") . "\n" .
1450                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1451                      "</div>" .
1452                      $cgi->end_form() . "\n";
1453        }
1454        print "</div>\n";
1455}
1456
1457sub git_footer_html {
1458        print "<div class=\"page_footer\">\n";
1459        if (defined $project) {
1460                my $descr = git_get_project_description($project);
1461                if (defined $descr) {
1462                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1463                }
1464                print $cgi->a({-href => href(action=>"rss"),
1465                              -class => "rss_logo"}, "RSS") . "\n";
1466        } else {
1467                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1468                              -class => "rss_logo"}, "OPML") . " ";
1469                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1470                              -class => "rss_logo"}, "TXT") . "\n";
1471        }
1472        print "</div>\n" ;
1473
1474        if (-f $site_footer) {
1475                open (my $fd, $site_footer);
1476                print <$fd>;
1477                close $fd;
1478        }
1479
1480        print "</body>\n" .
1481              "</html>";
1482}
1483
1484sub die_error {
1485        my $status = shift || "403 Forbidden";
1486        my $error = shift || "Malformed query, file missing or permission denied";
1487
1488        git_header_html($status);
1489        print <<EOF;
1490<div class="page_body">
1491<br /><br />
1492$status - $error
1493<br />
1494</div>
1495EOF
1496        git_footer_html();
1497        exit;
1498}
1499
1500## ----------------------------------------------------------------------
1501## functions printing or outputting HTML: navigation
1502
1503sub git_print_page_nav {
1504        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1505        $extra = '' if !defined $extra; # pager or formats
1506
1507        my @navs = qw(summary shortlog log commit commitdiff tree);
1508        if ($suppress) {
1509                @navs = grep { $_ ne $suppress } @navs;
1510        }
1511
1512        my %arg = map { $_ => {action=>$_} } @navs;
1513        if (defined $head) {
1514                for (qw(commit commitdiff)) {
1515                        $arg{$_}{hash} = $head;
1516                }
1517                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1518                        for (qw(shortlog log)) {
1519                                $arg{$_}{hash} = $head;
1520                        }
1521                }
1522        }
1523        $arg{tree}{hash} = $treehead if defined $treehead;
1524        $arg{tree}{hash_base} = $treebase if defined $treebase;
1525
1526        print "<div class=\"page_nav\">\n" .
1527                (join " | ",
1528                 map { $_ eq $current ?
1529                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1530                 } @navs);
1531        print "<br/>\n$extra<br/>\n" .
1532              "</div>\n";
1533}
1534
1535sub format_paging_nav {
1536        my ($action, $hash, $head, $page, $nrevs) = @_;
1537        my $paging_nav;
1538
1539
1540        if ($hash ne $head || $page) {
1541                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1542        } else {
1543                $paging_nav .= "HEAD";
1544        }
1545
1546        if ($page > 0) {
1547                $paging_nav .= " &sdot; " .
1548                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1549                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1550        } else {
1551                $paging_nav .= " &sdot; prev";
1552        }
1553
1554        if ($nrevs >= (100 * ($page+1)-1)) {
1555                $paging_nav .= " &sdot; " .
1556                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1557                                 -accesskey => "n", -title => "Alt-n"}, "next");
1558        } else {
1559                $paging_nav .= " &sdot; next";
1560        }
1561
1562        return $paging_nav;
1563}
1564
1565## ......................................................................
1566## functions printing or outputting HTML: div
1567
1568sub git_print_header_div {
1569        my ($action, $title, $hash, $hash_base) = @_;
1570        my %args = ();
1571
1572        $args{action} = $action;
1573        $args{hash} = $hash if $hash;
1574        $args{hash_base} = $hash_base if $hash_base;
1575
1576        print "<div class=\"header\">\n" .
1577              $cgi->a({-href => href(%args), -class => "title"},
1578              $title ? $title : $action) .
1579              "\n</div>\n";
1580}
1581
1582#sub git_print_authorship (\%) {
1583sub git_print_authorship {
1584        my $co = shift;
1585
1586        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1587        print "<div class=\"author_date\">" .
1588              esc_html($co->{'author_name'}) .
1589              " [$ad{'rfc2822'}";
1590        if ($ad{'hour_local'} < 6) {
1591                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1592                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1593        } else {
1594                printf(" (%02d:%02d %s)",
1595                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1596        }
1597        print "]</div>\n";
1598}
1599
1600sub git_print_page_path {
1601        my $name = shift;
1602        my $type = shift;
1603        my $hb = shift;
1604
1605        if (!defined $name) {
1606                print "<div class=\"page_path\">/</div>\n";
1607        } else {
1608                my @dirname = split '/', $name;
1609                my $basename = pop @dirname;
1610                my $fullname = '';
1611
1612                print "<div class=\"page_path\">";
1613                print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1614                              -title => 'tree root'}, "[$project]");
1615                print " / ";
1616                foreach my $dir (@dirname) {
1617                        $fullname .= ($fullname ? '/' : '') . $dir;
1618                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1619                                                     hash_base=>$hb),
1620                                      -title => $fullname}, esc_html($dir));
1621                        print " / ";
1622                }
1623                if (defined $type && $type eq 'blob') {
1624                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1625                                                     hash_base=>$hb),
1626                                      -title => $name}, esc_html($basename));
1627                } elsif (defined $type && $type eq 'tree') {
1628                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1629                                                     hash_base=>$hb),
1630                                      -title => $name}, esc_html($basename));
1631                } else {
1632                        print esc_html($basename);
1633                }
1634                print "<br/></div>\n";
1635        }
1636}
1637
1638# sub git_print_log (\@;%) {
1639sub git_print_log ($;%) {
1640        my $log = shift;
1641        my %opts = @_;
1642
1643        if ($opts{'-remove_title'}) {
1644                # remove title, i.e. first line of log
1645                shift @$log;
1646        }
1647        # remove leading empty lines
1648        while (defined $log->[0] && $log->[0] eq "") {
1649                shift @$log;
1650        }
1651
1652        # print log
1653        my $signoff = 0;
1654        my $empty = 0;
1655        foreach my $line (@$log) {
1656                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1657                        $signoff = 1;
1658                        $empty = 0;
1659                        if (! $opts{'-remove_signoff'}) {
1660                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1661                                next;
1662                        } else {
1663                                # remove signoff lines
1664                                next;
1665                        }
1666                } else {
1667                        $signoff = 0;
1668                }
1669
1670                # print only one empty line
1671                # do not print empty line after signoff
1672                if ($line eq "") {
1673                        next if ($empty || $signoff);
1674                        $empty = 1;
1675                } else {
1676                        $empty = 0;
1677                }
1678
1679                print format_log_line_html($line) . "<br/>\n";
1680        }
1681
1682        if ($opts{'-final_empty_line'}) {
1683                # end with single empty line
1684                print "<br/>\n" unless $empty;
1685        }
1686}
1687
1688sub git_print_simplified_log {
1689        my $log = shift;
1690        my $remove_title = shift;
1691
1692        git_print_log($log,
1693                -final_empty_line=> 1,
1694                -remove_title => $remove_title);
1695}
1696
1697# print tree entry (row of git_tree), but without encompassing <tr> element
1698sub git_print_tree_entry {
1699        my ($t, $basedir, $hash_base, $have_blame) = @_;
1700
1701        my %base_key = ();
1702        $base_key{hash_base} = $hash_base if defined $hash_base;
1703
1704        # The format of a table row is: mode list link.  Where mode is
1705        # the mode of the entry, list is the name of the entry, an href,
1706        # and link is the action links of the entry.
1707
1708        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1709        if ($t->{'type'} eq "blob") {
1710                print "<td class=\"list\">" .
1711                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1712                                               file_name=>"$basedir$t->{'name'}", %base_key),
1713                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1714                print "<td class=\"link\">";
1715                if ($have_blame) {
1716                        print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1717                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
1718                                      "blame");
1719                }
1720                if (defined $hash_base) {
1721                        if ($have_blame) {
1722                                print " | ";
1723                        }
1724                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1725                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1726                                      "history");
1727                }
1728                print " | " .
1729                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1730                                               file_name=>"$basedir$t->{'name'}")},
1731                                "raw");
1732                print "</td>\n";
1733
1734        } elsif ($t->{'type'} eq "tree") {
1735                print "<td class=\"list\">";
1736                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1737                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1738                              esc_html($t->{'name'}));
1739                print "</td>\n";
1740                print "<td class=\"link\">";
1741                if (defined $hash_base) {
1742                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1743                                                     file_name=>"$basedir$t->{'name'}")},
1744                                      "history");
1745                }
1746                print "</td>\n";
1747        }
1748}
1749
1750## ......................................................................
1751## functions printing large fragments of HTML
1752
1753sub git_difftree_body {
1754        my ($difftree, $hash, $parent) = @_;
1755
1756        print "<div class=\"list_head\">\n";
1757        if ($#{$difftree} > 10) {
1758                print(($#{$difftree} + 1) . " files changed:\n");
1759        }
1760        print "</div>\n";
1761
1762        print "<table class=\"diff_tree\">\n";
1763        my $alternate = 1;
1764        my $patchno = 0;
1765        foreach my $line (@{$difftree}) {
1766                my %diff = parse_difftree_raw_line($line);
1767
1768                if ($alternate) {
1769                        print "<tr class=\"dark\">\n";
1770                } else {
1771                        print "<tr class=\"light\">\n";
1772                }
1773                $alternate ^= 1;
1774
1775                my ($to_mode_oct, $to_mode_str, $to_file_type);
1776                my ($from_mode_oct, $from_mode_str, $from_file_type);
1777                if ($diff{'to_mode'} ne ('0' x 6)) {
1778                        $to_mode_oct = oct $diff{'to_mode'};
1779                        if (S_ISREG($to_mode_oct)) { # only for regular file
1780                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1781                        }
1782                        $to_file_type = file_type($diff{'to_mode'});
1783                }
1784                if ($diff{'from_mode'} ne ('0' x 6)) {
1785                        $from_mode_oct = oct $diff{'from_mode'};
1786                        if (S_ISREG($to_mode_oct)) { # only for regular file
1787                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1788                        }
1789                        $from_file_type = file_type($diff{'from_mode'});
1790                }
1791
1792                if ($diff{'status'} eq "A") { # created
1793                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1794                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1795                        $mode_chng   .= "]</span>";
1796                        print "<td>";
1797                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1798                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1799                                       -class => "list"}, esc_html($diff{'file'}));
1800                        print "</td>\n";
1801                        print "<td>$mode_chng</td>\n";
1802                        print "<td class=\"link\">";
1803                        if ($action eq 'commitdiff') {
1804                                # link to patch
1805                                $patchno++;
1806                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1807                        }
1808                        print "</td>\n";
1809
1810                } elsif ($diff{'status'} eq "D") { # deleted
1811                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1812                        print "<td>";
1813                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1814                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1815                                       -class => "list"}, esc_html($diff{'file'}));
1816                        print "</td>\n";
1817                        print "<td>$mode_chng</td>\n";
1818                        print "<td class=\"link\">";
1819                        if ($action eq 'commitdiff') {
1820                                # link to patch
1821                                $patchno++;
1822                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1823                                print " | ";
1824                        }
1825                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1826                                                     file_name=>$diff{'file'})},
1827                                      "blame") . " | ";
1828                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1829                                                     file_name=>$diff{'file'})},
1830                                      "history");
1831                        print "</td>\n";
1832
1833                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1834                        my $mode_chnge = "";
1835                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1836                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1837                                if ($from_file_type != $to_file_type) {
1838                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1839                                }
1840                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1841                                        if ($from_mode_str && $to_mode_str) {
1842                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1843                                        } elsif ($to_mode_str) {
1844                                                $mode_chnge .= " mode: $to_mode_str";
1845                                        }
1846                                }
1847                                $mode_chnge .= "]</span>\n";
1848                        }
1849                        print "<td>";
1850                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1851                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1852                                       -class => "list"}, esc_html($diff{'file'}));
1853                        print "</td>\n";
1854                        print "<td>$mode_chnge</td>\n";
1855                        print "<td class=\"link\">";
1856                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1857                                if ($action eq 'commitdiff') {
1858                                        # link to patch
1859                                        $patchno++;
1860                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1861                                } else {
1862                                        print $cgi->a({-href => href(action=>"blobdiff",
1863                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1864                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1865                                                                     file_name=>$diff{'file'})},
1866                                                      "diff");
1867                                }
1868                                print " | ";
1869                        }
1870                        print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1871                                                     file_name=>$diff{'file'})},
1872                                      "blame") . " | ";
1873                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1874                                                     file_name=>$diff{'file'})},
1875                                      "history");
1876                        print "</td>\n";
1877
1878                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1879                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1880                        my $nstatus = $status_name{$diff{'status'}};
1881                        my $mode_chng = "";
1882                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1883                                # mode also for directories, so we cannot use $to_mode_str
1884                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1885                        }
1886                        print "<td>" .
1887                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1888                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1889                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1890                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1891                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1892                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1893                                      -class => "list"}, esc_html($diff{'from_file'})) .
1894                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1895                              "<td class=\"link\">";
1896                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1897                                if ($action eq 'commitdiff') {
1898                                        # link to patch
1899                                        $patchno++;
1900                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1901                                } else {
1902                                        print $cgi->a({-href => href(action=>"blobdiff",
1903                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1904                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1905                                                                     file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1906                                                      "diff");
1907                                }
1908                                print " | ";
1909                        }
1910                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1911                                                     file_name=>$diff{'from_file'})},
1912                                      "blame") . " | ";
1913                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1914                                                     file_name=>$diff{'from_file'})},
1915                                      "history");
1916                        print "</td>\n";
1917
1918                } # we should not encounter Unmerged (U) or Unknown (X) status
1919                print "</tr>\n";
1920        }
1921        print "</table>\n";
1922}
1923
1924sub git_patchset_body {
1925        my ($fd, $difftree, $hash, $hash_parent) = @_;
1926
1927        my $patch_idx = 0;
1928        my $in_header = 0;
1929        my $patch_found = 0;
1930        my $diffinfo;
1931
1932        print "<div class=\"patchset\">\n";
1933
1934        LINE:
1935        while (my $patch_line = <$fd>) {
1936                chomp $patch_line;
1937
1938                if ($patch_line =~ m/^diff /) { # "git diff" header
1939                        # beginning of patch (in patchset)
1940                        if ($patch_found) {
1941                                # close previous patch
1942                                print "</div>\n"; # class="patch"
1943                        } else {
1944                                # first patch in patchset
1945                                $patch_found = 1;
1946                        }
1947                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1948
1949                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1950                                $diffinfo = $difftree->[$patch_idx];
1951                        } else {
1952                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1953                        }
1954                        $patch_idx++;
1955
1956                        # for now, no extended header, hence we skip empty patches
1957                        # companion to  next LINE if $in_header;
1958                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1959                                $in_header = 1;
1960                                next LINE;
1961                        }
1962
1963                        if ($diffinfo->{'status'} eq "A") { # added
1964                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1965                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1966                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1967                                              $diffinfo->{'to_id'}) . "(new)" .
1968                                      "</div>\n"; # class="diff_info"
1969
1970                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1971                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1972                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1973                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1974                                              $diffinfo->{'from_id'}) . "(deleted)" .
1975                                      "</div>\n"; # class="diff_info"
1976
1977                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1978                                 $diffinfo->{'status'} eq "C" || # copied
1979                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1980                                print "<div class=\"diff_info\">" .
1981                                      file_type($diffinfo->{'from_mode'}) . ":" .
1982                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1983                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1984                                              $diffinfo->{'from_id'}) .
1985                                      " -> " .
1986                                      file_type($diffinfo->{'to_mode'}) . ":" .
1987                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1988                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1989                                              $diffinfo->{'to_id'});
1990                                print "</div>\n"; # class="diff_info"
1991
1992                        } else { # modified, mode changed, ...
1993                                print "<div class=\"diff_info\">" .
1994                                      file_type($diffinfo->{'from_mode'}) . ":" .
1995                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1996                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1997                                              $diffinfo->{'from_id'}) .
1998                                      " -> " .
1999                                      file_type($diffinfo->{'to_mode'}) . ":" .
2000                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2001                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2002                                              $diffinfo->{'to_id'});
2003                                print "</div>\n"; # class="diff_info"
2004                        }
2005
2006                        #print "<div class=\"diff extended_header\">\n";
2007                        $in_header = 1;
2008                        next LINE;
2009                } # start of patch in patchset
2010
2011
2012                if ($in_header && $patch_line =~ m/^---/) {
2013                        #print "</div>\n"; # class="diff extended_header"
2014                        $in_header = 0;
2015
2016                        my $file = $diffinfo->{'from_file'};
2017                        $file  ||= $diffinfo->{'file'};
2018                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2019                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
2020                                        -class => "list"}, esc_html($file));
2021                        $patch_line =~ s|a/.*$|a/$file|g;
2022                        print "<div class=\"diff from_file\">$patch_line</div>\n";
2023
2024                        $patch_line = <$fd>;
2025                        chomp $patch_line;
2026
2027                        #$patch_line =~ m/^+++/;
2028                        $file    = $diffinfo->{'to_file'};
2029                        $file  ||= $diffinfo->{'file'};
2030                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2031                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
2032                                        -class => "list"}, esc_html($file));
2033                        $patch_line =~ s|b/.*|b/$file|g;
2034                        print "<div class=\"diff to_file\">$patch_line</div>\n";
2035
2036                        next LINE;
2037                }
2038                next LINE if $in_header;
2039
2040                print format_diff_line($patch_line);
2041        }
2042        print "</div>\n" if $patch_found; # class="patch"
2043
2044        print "</div>\n"; # class="patchset"
2045}
2046
2047# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2048
2049sub git_shortlog_body {
2050        # uses global variable $project
2051        my ($revlist, $from, $to, $refs, $extra) = @_;
2052
2053        $from = 0 unless defined $from;
2054        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2055
2056        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2057        my $alternate = 1;
2058        for (my $i = $from; $i <= $to; $i++) {
2059                my $commit = $revlist->[$i];
2060                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2061                my $ref = format_ref_marker($refs, $commit);
2062                my %co = parse_commit($commit);
2063                if ($alternate) {
2064                        print "<tr class=\"dark\">\n";
2065                } else {
2066                        print "<tr class=\"light\">\n";
2067                }
2068                $alternate ^= 1;
2069                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2070                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2071                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2072                      "<td>";
2073                print format_subject_html($co{'title'}, $co{'title_short'},
2074                                          href(action=>"commit", hash=>$commit), $ref);
2075                print "</td>\n" .
2076                      "<td class=\"link\">" .
2077                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2078                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2079                      $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2080                print "</td>\n" .
2081                      "</tr>\n";
2082        }
2083        if (defined $extra) {
2084                print "<tr>\n" .
2085                      "<td colspan=\"4\">$extra</td>\n" .
2086                      "</tr>\n";
2087        }
2088        print "</table>\n";
2089}
2090
2091sub git_history_body {
2092        # Warning: assumes constant type (blob or tree) during history
2093        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2094
2095        $from = 0 unless defined $from;
2096        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2097
2098        print "<table class=\"history\" cellspacing=\"0\">\n";
2099        my $alternate = 1;
2100        for (my $i = $from; $i <= $to; $i++) {
2101                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2102                        next;
2103                }
2104
2105                my $commit = $1;
2106                my %co = parse_commit($commit);
2107                if (!%co) {
2108                        next;
2109                }
2110
2111                my $ref = format_ref_marker($refs, $commit);
2112
2113                if ($alternate) {
2114                        print "<tr class=\"dark\">\n";
2115                } else {
2116                        print "<tr class=\"light\">\n";
2117                }
2118                $alternate ^= 1;
2119                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2120                      # shortlog uses      chop_str($co{'author_name'}, 10)
2121                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2122                      "<td>";
2123                # originally git_history used chop_str($co{'title'}, 50)
2124                print format_subject_html($co{'title'}, $co{'title_short'},
2125                                          href(action=>"commit", hash=>$commit), $ref);
2126                print "</td>\n" .
2127                      "<td class=\"link\">" .
2128                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2129                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2130
2131                if ($ftype eq 'blob') {
2132                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2133                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2134                        if (defined $blob_current && defined $blob_parent &&
2135                                        $blob_current ne $blob_parent) {
2136                                print " | " .
2137                                        $cgi->a({-href => href(action=>"blobdiff",
2138                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2139                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2140                                                               file_name=>$file_name)},
2141                                                "diff to current");
2142                        }
2143                }
2144                print "</td>\n" .
2145                      "</tr>\n";
2146        }
2147        if (defined $extra) {
2148                print "<tr>\n" .
2149                      "<td colspan=\"4\">$extra</td>\n" .
2150                      "</tr>\n";
2151        }
2152        print "</table>\n";
2153}
2154
2155sub git_tags_body {
2156        # uses global variable $project
2157        my ($taglist, $from, $to, $extra) = @_;
2158        $from = 0 unless defined $from;
2159        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2160
2161        print "<table class=\"tags\" cellspacing=\"0\">\n";
2162        my $alternate = 1;
2163        for (my $i = $from; $i <= $to; $i++) {
2164                my $entry = $taglist->[$i];
2165                my %tag = %$entry;
2166                my $comment_lines = $tag{'comment'};
2167                my $comment = shift @$comment_lines;
2168                my $comment_short;
2169                if (defined $comment) {
2170                        $comment_short = chop_str($comment, 30, 5);
2171                }
2172                if ($alternate) {
2173                        print "<tr class=\"dark\">\n";
2174                } else {
2175                        print "<tr class=\"light\">\n";
2176                }
2177                $alternate ^= 1;
2178                print "<td><i>$tag{'age'}</i></td>\n" .
2179                      "<td>" .
2180                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2181                               -class => "list name"}, esc_html($tag{'name'})) .
2182                      "</td>\n" .
2183                      "<td>";
2184                if (defined $comment) {
2185                        print format_subject_html($comment, $comment_short,
2186                                                  href(action=>"tag", hash=>$tag{'id'}));
2187                }
2188                print "</td>\n" .
2189                      "<td class=\"selflink\">";
2190                if ($tag{'type'} eq "tag") {
2191                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2192                } else {
2193                        print "&nbsp;";
2194                }
2195                print "</td>\n" .
2196                      "<td class=\"link\">" . " | " .
2197                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2198                if ($tag{'reftype'} eq "commit") {
2199                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2200                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2201                } elsif ($tag{'reftype'} eq "blob") {
2202                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2203                }
2204                print "</td>\n" .
2205                      "</tr>";
2206        }
2207        if (defined $extra) {
2208                print "<tr>\n" .
2209                      "<td colspan=\"5\">$extra</td>\n" .
2210                      "</tr>\n";
2211        }
2212        print "</table>\n";
2213}
2214
2215sub git_heads_body {
2216        # uses global variable $project
2217        my ($headlist, $head, $from, $to, $extra) = @_;
2218        $from = 0 unless defined $from;
2219        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2220
2221        print "<table class=\"heads\" cellspacing=\"0\">\n";
2222        my $alternate = 1;
2223        for (my $i = $from; $i <= $to; $i++) {
2224                my $entry = $headlist->[$i];
2225                my %tag = %$entry;
2226                my $curr = $tag{'id'} eq $head;
2227                if ($alternate) {
2228                        print "<tr class=\"dark\">\n";
2229                } else {
2230                        print "<tr class=\"light\">\n";
2231                }
2232                $alternate ^= 1;
2233                print "<td><i>$tag{'age'}</i></td>\n" .
2234                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2235                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2236                               -class => "list name"},esc_html($tag{'name'})) .
2237                      "</td>\n" .
2238                      "<td class=\"link\">" .
2239                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2240                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2241                      $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2242                      "</td>\n" .
2243                      "</tr>";
2244        }
2245        if (defined $extra) {
2246                print "<tr>\n" .
2247                      "<td colspan=\"3\">$extra</td>\n" .
2248                      "</tr>\n";
2249        }
2250        print "</table>\n";
2251}
2252
2253## ======================================================================
2254## ======================================================================
2255## actions
2256
2257sub git_project_list {
2258        my $order = $cgi->param('o');
2259        if (defined $order && $order !~ m/project|descr|owner|age/) {
2260                die_error(undef, "Unknown order parameter");
2261        }
2262
2263        my @list = git_get_projects_list();
2264        my @projects;
2265        if (!@list) {
2266                die_error(undef, "No projects found");
2267        }
2268        foreach my $pr (@list) {
2269                my $head = git_get_head_hash($pr->{'path'});
2270                if (!defined $head) {
2271                        next;
2272                }
2273                $git_dir = "$projectroot/$pr->{'path'}";
2274                my %co = parse_commit($head);
2275                if (!%co) {
2276                        next;
2277                }
2278                $pr->{'commit'} = \%co;
2279                if (!defined $pr->{'descr'}) {
2280                        my $descr = git_get_project_description($pr->{'path'}) || "";
2281                        $pr->{'descr'} = chop_str($descr, 25, 5);
2282                }
2283                if (!defined $pr->{'owner'}) {
2284                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2285                }
2286                push @projects, $pr;
2287        }
2288
2289        git_header_html();
2290        if (-f $home_text) {
2291                print "<div class=\"index_include\">\n";
2292                open (my $fd, $home_text);
2293                print <$fd>;
2294                close $fd;
2295                print "</div>\n";
2296        }
2297        print "<table class=\"project_list\">\n" .
2298              "<tr>\n";
2299        $order ||= "project";
2300        if ($order eq "project") {
2301                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2302                print "<th>Project</th>\n";
2303        } else {
2304                print "<th>" .
2305                      $cgi->a({-href => href(project=>undef, order=>'project'),
2306                               -class => "header"}, "Project") .
2307                      "</th>\n";
2308        }
2309        if ($order eq "descr") {
2310                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2311                print "<th>Description</th>\n";
2312        } else {
2313                print "<th>" .
2314                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2315                               -class => "header"}, "Description") .
2316                      "</th>\n";
2317        }
2318        if ($order eq "owner") {
2319                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2320                print "<th>Owner</th>\n";
2321        } else {
2322                print "<th>" .
2323                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2324                               -class => "header"}, "Owner") .
2325                      "</th>\n";
2326        }
2327        if ($order eq "age") {
2328                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2329                print "<th>Last Change</th>\n";
2330        } else {
2331                print "<th>" .
2332                      $cgi->a({-href => href(project=>undef, order=>'age'),
2333                               -class => "header"}, "Last Change") .
2334                      "</th>\n";
2335        }
2336        print "<th></th>\n" .
2337              "</tr>\n";
2338        my $alternate = 1;
2339        foreach my $pr (@projects) {
2340                if ($alternate) {
2341                        print "<tr class=\"dark\">\n";
2342                } else {
2343                        print "<tr class=\"light\">\n";
2344                }
2345                $alternate ^= 1;
2346                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2347                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2348                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2349                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2350                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2351                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2352                      "<td class=\"link\">" .
2353                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2354                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2355                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2356                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2357                      "</td>\n" .
2358                      "</tr>\n";
2359        }
2360        print "</table>\n";
2361        git_footer_html();
2362}
2363
2364sub git_project_index {
2365        my @projects = git_get_projects_list();
2366
2367        print $cgi->header(
2368                -type => 'text/plain',
2369                -charset => 'utf-8',
2370                -content_disposition => 'inline; filename="index.aux"');
2371
2372        foreach my $pr (@projects) {
2373                if (!exists $pr->{'owner'}) {
2374                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2375                }
2376
2377                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2378                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2379                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2380                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2381                $path  =~ s/ /\+/g;
2382                $owner =~ s/ /\+/g;
2383
2384                print "$path $owner\n";
2385        }
2386}
2387
2388sub git_summary {
2389        my $descr = git_get_project_description($project) || "none";
2390        my $head = git_get_head_hash($project);
2391        my %co = parse_commit($head);
2392        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2393
2394        my $owner = git_get_project_owner($project);
2395
2396        my ($reflist, $refs) = git_get_refs_list();
2397
2398        my @taglist;
2399        my @headlist;
2400        foreach my $ref (@$reflist) {
2401                if ($ref->{'name'} =~ s!^heads/!!) {
2402                        push @headlist, $ref;
2403                } else {
2404                        $ref->{'name'} =~ s!^tags/!!;
2405                        push @taglist, $ref;
2406                }
2407        }
2408
2409        git_header_html();
2410        git_print_page_nav('summary','', $head);
2411
2412        print "<div class=\"title\">&nbsp;</div>\n";
2413        print "<table cellspacing=\"0\">\n" .
2414              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2415              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2416              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2417        # use per project git URL list in $projectroot/$project/cloneurl
2418        # or make project git URL from git base URL and project name
2419        my $url_tag = "URL";
2420        my @url_list = git_get_project_url_list($project);
2421        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2422        foreach my $git_url (@url_list) {
2423                next unless $git_url;
2424                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2425                $url_tag = "";
2426        }
2427        print "</table>\n";
2428
2429        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2430                git_get_head_hash($project)
2431                or die_error(undef, "Open git-rev-list failed");
2432        my @revlist = map { chomp; $_ } <$fd>;
2433        close $fd;
2434        git_print_header_div('shortlog');
2435        git_shortlog_body(\@revlist, 0, 15, $refs,
2436                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2437
2438        if (@taglist) {
2439                git_print_header_div('tags');
2440                git_tags_body(\@taglist, 0, 15,
2441                              $cgi->a({-href => href(action=>"tags")}, "..."));
2442        }
2443
2444        if (@headlist) {
2445                git_print_header_div('heads');
2446                git_heads_body(\@headlist, $head, 0, 15,
2447                               $cgi->a({-href => href(action=>"heads")}, "..."));
2448        }
2449
2450        git_footer_html();
2451}
2452
2453sub git_tag {
2454        my $head = git_get_head_hash($project);
2455        git_header_html();
2456        git_print_page_nav('','', $head,undef,$head);
2457        my %tag = parse_tag($hash);
2458        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2459        print "<div class=\"title_text\">\n" .
2460              "<table cellspacing=\"0\">\n" .
2461              "<tr>\n" .
2462              "<td>object</td>\n" .
2463              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2464                               $tag{'object'}) . "</td>\n" .
2465              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2466                                              $tag{'type'}) . "</td>\n" .
2467              "</tr>\n";
2468        if (defined($tag{'author'})) {
2469                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2470                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2471                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2472                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2473                        "</td></tr>\n";
2474        }
2475        print "</table>\n\n" .
2476              "</div>\n";
2477        print "<div class=\"page_body\">";
2478        my $comment = $tag{'comment'};
2479        foreach my $line (@$comment) {
2480                print esc_html($line) . "<br/>\n";
2481        }
2482        print "</div>\n";
2483        git_footer_html();
2484}
2485
2486sub git_blame2 {
2487        my $fd;
2488        my $ftype;
2489
2490        my ($have_blame) = gitweb_check_feature('blame');
2491        if (!$have_blame) {
2492                die_error('403 Permission denied', "Permission denied");
2493        }
2494        die_error('404 Not Found', "File name not defined") if (!$file_name);
2495        $hash_base ||= git_get_head_hash($project);
2496        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2497        my %co = parse_commit($hash_base)
2498                or die_error(undef, "Reading commit failed");
2499        if (!defined $hash) {
2500                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2501                        or die_error(undef, "Error looking up file");
2502        }
2503        $ftype = git_get_type($hash);
2504        if ($ftype !~ "blob") {
2505                die_error("400 Bad Request", "Object is not a blob");
2506        }
2507        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2508              $file_name, $hash_base)
2509                or die_error(undef, "Open git-blame failed");
2510        git_header_html();
2511        my $formats_nav =
2512                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2513                        "blob") .
2514                " | " .
2515                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2516                        "history") .
2517                " | " .
2518                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2519                        "HEAD");
2520        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2521        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2522        git_print_page_path($file_name, $ftype, $hash_base);
2523        my @rev_color = (qw(light2 dark2));
2524        my $num_colors = scalar(@rev_color);
2525        my $current_color = 0;
2526        my $last_rev;
2527        print <<HTML;
2528<div class="page_body">
2529<table class="blame">
2530<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2531HTML
2532        my %metainfo = ();
2533        while (1) {
2534                $_ = <$fd>;
2535                last unless defined $_;
2536                my ($full_rev, $orig_lineno, $lineno, $group_size) =
2537                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2538                if (!exists $metainfo{$full_rev}) {
2539                        $metainfo{$full_rev} = {};
2540                }
2541                my $meta = $metainfo{$full_rev};
2542                while (<$fd>) {
2543                        last if (s/^\t//);
2544                        if (/^(\S+) (.*)$/) {
2545                                $meta->{$1} = $2;
2546                        }
2547                }
2548                my $data = $_;
2549                my $rev = substr($full_rev, 0, 8);
2550                my $author = $meta->{'author'};
2551                my %date = parse_date($meta->{'author-time'},
2552                                      $meta->{'author-tz'});
2553                my $date = $date{'iso-tz'};
2554                if ($group_size) {
2555                        $current_color = ++$current_color % $num_colors;
2556                }
2557                print "<tr class=\"$rev_color[$current_color]\">\n";
2558                if ($group_size) {
2559                        print "<td class=\"sha1\"";
2560                        print " title=\"$author, $date\"";
2561                        print " rowspan=\"$group_size\"" if ($group_size > 1);
2562                        print ">";
2563                        print $cgi->a({-href => href(action=>"commit",
2564                                                     hash=>$full_rev,
2565                                                     file_name=>$file_name)},
2566                                      esc_html($rev));
2567                        print "</td>\n";
2568                }
2569                my $blamed = href(action => 'blame',
2570                                  file_name => $meta->{'filename'},
2571                                  hash_base => $full_rev);
2572                print "<td class=\"linenr\">";
2573                print $cgi->a({ -href => "$blamed#l$orig_lineno",
2574                                -id => "l$lineno",
2575                                -class => "linenr" },
2576                              esc_html($lineno));
2577                print "</td>";
2578                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2579                print "</tr>\n";
2580        }
2581        print "</table>\n";
2582        print "</div>";
2583        close $fd
2584                or print "Reading blob failed\n";
2585        git_footer_html();
2586}
2587
2588sub git_blame {
2589        my $fd;
2590
2591        my ($have_blame) = gitweb_check_feature('blame');
2592        if (!$have_blame) {
2593                die_error('403 Permission denied', "Permission denied");
2594        }
2595        die_error('404 Not Found', "File name not defined") if (!$file_name);
2596        $hash_base ||= git_get_head_hash($project);
2597        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2598        my %co = parse_commit($hash_base)
2599                or die_error(undef, "Reading commit failed");
2600        if (!defined $hash) {
2601                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2602                        or die_error(undef, "Error lookup file");
2603        }
2604        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2605                or die_error(undef, "Open git-annotate failed");
2606        git_header_html();
2607        my $formats_nav =
2608                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2609                        "blob") .
2610                " | " .
2611                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2612                        "history") .
2613                " | " .
2614                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2615                        "HEAD");
2616        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2617        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2618        git_print_page_path($file_name, 'blob', $hash_base);
2619        print "<div class=\"page_body\">\n";
2620        print <<HTML;
2621<table class="blame">
2622  <tr>
2623    <th>Commit</th>
2624    <th>Age</th>
2625    <th>Author</th>
2626    <th>Line</th>
2627    <th>Data</th>
2628  </tr>
2629HTML
2630        my @line_class = (qw(light dark));
2631        my $line_class_len = scalar (@line_class);
2632        my $line_class_num = $#line_class;
2633        while (my $line = <$fd>) {
2634                my $long_rev;
2635                my $short_rev;
2636                my $author;
2637                my $time;
2638                my $lineno;
2639                my $data;
2640                my $age;
2641                my $age_str;
2642                my $age_class;
2643
2644                chomp $line;
2645                $line_class_num = ($line_class_num + 1) % $line_class_len;
2646
2647                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2648                        $long_rev = $1;
2649                        $author   = $2;
2650                        $time     = $3;
2651                        $lineno   = $4;
2652                        $data     = $5;
2653                } else {
2654                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2655                        next;
2656                }
2657                $short_rev  = substr ($long_rev, 0, 8);
2658                $age        = time () - $time;
2659                $age_str    = age_string ($age);
2660                $age_str    =~ s/ /&nbsp;/g;
2661                $age_class  = age_class($age);
2662                $author     = esc_html ($author);
2663                $author     =~ s/ /&nbsp;/g;
2664
2665                $data = untabify($data);
2666                $data = esc_html ($data);
2667
2668                print <<HTML;
2669  <tr class="$line_class[$line_class_num]">
2670    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2671    <td class="$age_class">$age_str</td>
2672    <td>$author</td>
2673    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2674    <td class="pre">$data</td>
2675  </tr>
2676HTML
2677        } # while (my $line = <$fd>)
2678        print "</table>\n\n";
2679        close $fd
2680                or print "Reading blob failed.\n";
2681        print "</div>";
2682        git_footer_html();
2683}
2684
2685sub git_tags {
2686        my $head = git_get_head_hash($project);
2687        git_header_html();
2688        git_print_page_nav('','', $head,undef,$head);
2689        git_print_header_div('summary', $project);
2690
2691        my ($taglist) = git_get_refs_list("tags");
2692        if (@$taglist) {
2693                git_tags_body($taglist);
2694        }
2695        git_footer_html();
2696}
2697
2698sub git_heads {
2699        my $head = git_get_head_hash($project);
2700        git_header_html();
2701        git_print_page_nav('','', $head,undef,$head);
2702        git_print_header_div('summary', $project);
2703
2704        my ($headlist) = git_get_refs_list("heads");
2705        if (@$headlist) {
2706                git_heads_body($headlist, $head);
2707        }
2708        git_footer_html();
2709}
2710
2711sub git_blob_plain {
2712        my $expires;
2713
2714        if (!defined $hash) {
2715                if (defined $file_name) {
2716                        my $base = $hash_base || git_get_head_hash($project);
2717                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2718                                or die_error(undef, "Error lookup file");
2719                } else {
2720                        die_error(undef, "No file name defined");
2721                }
2722        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2723                # blobs defined by non-textual hash id's can be cached
2724                $expires = "+1d";
2725        }
2726
2727        my $type = shift;
2728        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2729                or die_error(undef, "Couldn't cat $file_name, $hash");
2730
2731        $type ||= blob_mimetype($fd, $file_name);
2732
2733        # save as filename, even when no $file_name is given
2734        my $save_as = "$hash";
2735        if (defined $file_name) {
2736                $save_as = $file_name;
2737        } elsif ($type =~ m/^text\//) {
2738                $save_as .= '.txt';
2739        }
2740
2741        print $cgi->header(
2742                -type => "$type",
2743                -expires=>$expires,
2744                -content_disposition => 'inline; filename="' . "$save_as" . '"');
2745        undef $/;
2746        binmode STDOUT, ':raw';
2747        print <$fd>;
2748        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2749        $/ = "\n";
2750        close $fd;
2751}
2752
2753sub git_blob {
2754        my $expires;
2755
2756        if (!defined $hash) {
2757                if (defined $file_name) {
2758                        my $base = $hash_base || git_get_head_hash($project);
2759                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2760                                or die_error(undef, "Error lookup file");
2761                } else {
2762                        die_error(undef, "No file name defined");
2763                }
2764        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2765                # blobs defined by non-textual hash id's can be cached
2766                $expires = "+1d";
2767        }
2768
2769        my ($have_blame) = gitweb_check_feature('blame');
2770        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2771                or die_error(undef, "Couldn't cat $file_name, $hash");
2772        my $mimetype = blob_mimetype($fd, $file_name);
2773        if ($mimetype !~ m/^text\//) {
2774                close $fd;
2775                return git_blob_plain($mimetype);
2776        }
2777        git_header_html(undef, $expires);
2778        my $formats_nav = '';
2779        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2780                if (defined $file_name) {
2781                        if ($have_blame) {
2782                                $formats_nav .=
2783                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2784                                                               hash=>$hash, file_name=>$file_name)},
2785                                                "blame") .
2786                                        " | ";
2787                        }
2788                        $formats_nav .=
2789                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2790                                                       hash=>$hash, file_name=>$file_name)},
2791                                        "history") .
2792                                " | " .
2793                                $cgi->a({-href => href(action=>"blob_plain",
2794                                                       hash=>$hash, file_name=>$file_name)},
2795                                        "raw") .
2796                                " | " .
2797                                $cgi->a({-href => href(action=>"blob",
2798                                                       hash_base=>"HEAD", file_name=>$file_name)},
2799                                        "HEAD");
2800                } else {
2801                        $formats_nav .=
2802                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2803                }
2804                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2805                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2806        } else {
2807                print "<div class=\"page_nav\">\n" .
2808                      "<br/><br/></div>\n" .
2809                      "<div class=\"title\">$hash</div>\n";
2810        }
2811        git_print_page_path($file_name, "blob", $hash_base);
2812        print "<div class=\"page_body\">\n";
2813        my $nr;
2814        while (my $line = <$fd>) {
2815                chomp $line;
2816                $nr++;
2817                $line = untabify($line);
2818                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2819                       $nr, $nr, $nr, esc_html($line);
2820        }
2821        close $fd
2822                or print "Reading blob failed.\n";
2823        print "</div>";
2824        git_footer_html();
2825}
2826
2827sub git_tree {
2828        my $have_snapshot = gitweb_have_snapshot();
2829
2830        if (!defined $hash_base) {
2831                $hash_base = "HEAD";
2832        }
2833        if (!defined $hash) {
2834                if (defined $file_name) {
2835                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2836                } else {
2837                        $hash = $hash_base;
2838                }
2839        }
2840        $/ = "\0";
2841        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2842                or die_error(undef, "Open git-ls-tree failed");
2843        my @entries = map { chomp; $_ } <$fd>;
2844        close $fd or die_error(undef, "Reading tree failed");
2845        $/ = "\n";
2846
2847        my $refs = git_get_references();
2848        my $ref = format_ref_marker($refs, $hash_base);
2849        git_header_html();
2850        my $base = "";
2851        my ($have_blame) = gitweb_check_feature('blame');
2852        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2853                my @views_nav = ();
2854                if (defined $file_name) {
2855                        push @views_nav,
2856                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2857                                                       hash=>$hash, file_name=>$file_name)},
2858                                        "history"),
2859                                $cgi->a({-href => href(action=>"tree",
2860                                                       hash_base=>"HEAD", file_name=>$file_name)},
2861                                        "HEAD"),
2862                }
2863                if ($have_snapshot) {
2864                        # FIXME: Should be available when we have no hash base as well.
2865                        push @views_nav,
2866                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2867                                        "snapshot");
2868                }
2869                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2870                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2871        } else {
2872                undef $hash_base;
2873                print "<div class=\"page_nav\">\n";
2874                print "<br/><br/></div>\n";
2875                print "<div class=\"title\">$hash</div>\n";
2876        }
2877        if (defined $file_name) {
2878                $base = esc_html("$file_name/");
2879        }
2880        git_print_page_path($file_name, 'tree', $hash_base);
2881        print "<div class=\"page_body\">\n";
2882        print "<table cellspacing=\"0\">\n";
2883        my $alternate = 1;
2884        foreach my $line (@entries) {
2885                my %t = parse_ls_tree_line($line, -z => 1);
2886
2887                if ($alternate) {
2888                        print "<tr class=\"dark\">\n";
2889                } else {
2890                        print "<tr class=\"light\">\n";
2891                }
2892                $alternate ^= 1;
2893
2894                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2895
2896                print "</tr>\n";
2897        }
2898        print "</table>\n" .
2899              "</div>";
2900        git_footer_html();
2901}
2902
2903sub git_snapshot {
2904        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2905        my $have_snapshot = (defined $ctype && defined $suffix);
2906        if (!$have_snapshot) {
2907                die_error('403 Permission denied', "Permission denied");
2908        }
2909
2910        if (!defined $hash) {
2911                $hash = git_get_head_hash($project);
2912        }
2913
2914        my $filename = basename($project) . "-$hash.tar.$suffix";
2915
2916        print $cgi->header(
2917                -type => 'application/x-tar',
2918                -content_encoding => $ctype,
2919                -content_disposition => 'inline; filename="' . "$filename" . '"',
2920                -status => '200 OK');
2921
2922        my $git = git_cmd_str();
2923        my $name = $project;
2924        $name =~ s/\047/\047\\\047\047/g;
2925        open my $fd, "-|",
2926        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
2927                or die_error(undef, "Execute git-tar-tree failed.");
2928        binmode STDOUT, ':raw';
2929        print <$fd>;
2930        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2931        close $fd;
2932
2933}
2934
2935sub git_log {
2936        my $head = git_get_head_hash($project);
2937        if (!defined $hash) {
2938                $hash = $head;
2939        }
2940        if (!defined $page) {
2941                $page = 0;
2942        }
2943        my $refs = git_get_references();
2944
2945        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2946        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2947                or die_error(undef, "Open git-rev-list failed");
2948        my @revlist = map { chomp; $_ } <$fd>;
2949        close $fd;
2950
2951        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2952
2953        git_header_html();
2954        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2955
2956        if (!@revlist) {
2957                my %co = parse_commit($hash);
2958
2959                git_print_header_div('summary', $project);
2960                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2961        }
2962        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2963                my $commit = $revlist[$i];
2964                my $ref = format_ref_marker($refs, $commit);
2965                my %co = parse_commit($commit);
2966                next if !%co;
2967                my %ad = parse_date($co{'author_epoch'});
2968                git_print_header_div('commit',
2969                               "<span class=\"age\">$co{'age_string'}</span>" .
2970                               esc_html($co{'title'}) . $ref,
2971                               $commit);
2972                print "<div class=\"title_text\">\n" .
2973                      "<div class=\"log_link\">\n" .
2974                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2975                      " | " .
2976                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2977                      " | " .
2978                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2979                      "<br/>\n" .
2980                      "</div>\n" .
2981                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2982                      "</div>\n";
2983
2984                print "<div class=\"log_body\">\n";
2985                git_print_simplified_log($co{'comment'});
2986                print "</div>\n";
2987        }
2988        git_footer_html();
2989}
2990
2991sub git_commit {
2992        my %co = parse_commit($hash);
2993        if (!%co) {
2994                die_error(undef, "Unknown commit object");
2995        }
2996        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2997        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2998
2999        my $parent = $co{'parent'};
3000        if (!defined $parent) {
3001                $parent = "--root";
3002        }
3003        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3004                or die_error(undef, "Open git-diff-tree failed");
3005        my @difftree = map { chomp; $_ } <$fd>;
3006        close $fd or die_error(undef, "Reading git-diff-tree failed");
3007
3008        # non-textual hash id's can be cached
3009        my $expires;
3010        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3011                $expires = "+1d";
3012        }
3013        my $refs = git_get_references();
3014        my $ref = format_ref_marker($refs, $co{'id'});
3015
3016        my $have_snapshot = gitweb_have_snapshot();
3017
3018        my @views_nav = ();
3019        if (defined $file_name && defined $co{'parent'}) {
3020                push @views_nav,
3021                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3022                                "blame");
3023        }
3024        git_header_html(undef, $expires);
3025        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3026                           $hash, $co{'tree'}, $hash,
3027                           join (' | ', @views_nav));
3028
3029        if (defined $co{'parent'}) {
3030                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3031        } else {
3032                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3033        }
3034        print "<div class=\"title_text\">\n" .
3035              "<table cellspacing=\"0\">\n";
3036        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3037              "<tr>" .
3038              "<td></td><td> $ad{'rfc2822'}";
3039        if ($ad{'hour_local'} < 6) {
3040                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3041                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3042        } else {
3043                printf(" (%02d:%02d %s)",
3044                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3045        }
3046        print "</td>" .
3047              "</tr>\n";
3048        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3049        print "<tr><td></td><td> $cd{'rfc2822'}" .
3050              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3051              "</td></tr>\n";
3052        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3053        print "<tr>" .
3054              "<td>tree</td>" .
3055              "<td class=\"sha1\">" .
3056              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3057                       class => "list"}, $co{'tree'}) .
3058              "</td>" .
3059              "<td class=\"link\">" .
3060              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3061                      "tree");
3062        if ($have_snapshot) {
3063                print " | " .
3064                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3065        }
3066        print "</td>" .
3067              "</tr>\n";
3068        my $parents = $co{'parents'};
3069        foreach my $par (@$parents) {
3070                print "<tr>" .
3071                      "<td>parent</td>" .
3072                      "<td class=\"sha1\">" .
3073                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3074                               class => "list"}, $par) .
3075                      "</td>" .
3076                      "<td class=\"link\">" .
3077                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3078                      " | " .
3079                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3080                      "</td>" .
3081                      "</tr>\n";
3082        }
3083        print "</table>".
3084              "</div>\n";
3085
3086        print "<div class=\"page_body\">\n";
3087        git_print_log($co{'comment'});
3088        print "</div>\n";
3089
3090        git_difftree_body(\@difftree, $hash, $parent);
3091
3092        git_footer_html();
3093}
3094
3095sub git_blobdiff {
3096        my $format = shift || 'html';
3097
3098        my $fd;
3099        my @difftree;
3100        my %diffinfo;
3101        my $expires;
3102
3103        # preparing $fd and %diffinfo for git_patchset_body
3104        # new style URI
3105        if (defined $hash_base && defined $hash_parent_base) {
3106                if (defined $file_name) {
3107                        # read raw output
3108                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3109                                "--", $file_name
3110                                or die_error(undef, "Open git-diff-tree failed");
3111                        @difftree = map { chomp; $_ } <$fd>;
3112                        close $fd
3113                                or die_error(undef, "Reading git-diff-tree failed");
3114                        @difftree
3115                                or die_error('404 Not Found', "Blob diff not found");
3116
3117                } elsif (defined $hash &&
3118                         $hash =~ /[0-9a-fA-F]{40}/) {
3119                        # try to find filename from $hash
3120
3121                        # read filtered raw output
3122                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3123                                or die_error(undef, "Open git-diff-tree failed");
3124                        @difftree =
3125                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3126                                # $hash == to_id
3127                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3128                                map { chomp; $_ } <$fd>;
3129                        close $fd
3130                                or die_error(undef, "Reading git-diff-tree failed");
3131                        @difftree
3132                                or die_error('404 Not Found', "Blob diff not found");
3133
3134                } else {
3135                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3136                }
3137
3138                if (@difftree > 1) {
3139                        die_error('404 Not Found', "Ambiguous blob diff specification");
3140                }
3141
3142                %diffinfo = parse_difftree_raw_line($difftree[0]);
3143                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3144                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3145
3146                $hash_parent ||= $diffinfo{'from_id'};
3147                $hash        ||= $diffinfo{'to_id'};
3148
3149                # non-textual hash id's can be cached
3150                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3151                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3152                        $expires = '+1d';
3153                }
3154
3155                # open patch output
3156                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3157                        '-p', $hash_parent_base, $hash_base,
3158                        "--", $file_name
3159                        or die_error(undef, "Open git-diff-tree failed");
3160        }
3161
3162        # old/legacy style URI
3163        if (!%diffinfo && # if new style URI failed
3164            defined $hash && defined $hash_parent) {
3165                # fake git-diff-tree raw output
3166                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3167                $diffinfo{'from_id'} = $hash_parent;
3168                $diffinfo{'to_id'}   = $hash;
3169                if (defined $file_name) {
3170                        if (defined $file_parent) {
3171                                $diffinfo{'status'} = '2';
3172                                $diffinfo{'from_file'} = $file_parent;
3173                                $diffinfo{'to_file'}   = $file_name;
3174                        } else { # assume not renamed
3175                                $diffinfo{'status'} = '1';
3176                                $diffinfo{'from_file'} = $file_name;
3177                                $diffinfo{'to_file'}   = $file_name;
3178                        }
3179                } else { # no filename given
3180                        $diffinfo{'status'} = '2';
3181                        $diffinfo{'from_file'} = $hash_parent;
3182                        $diffinfo{'to_file'}   = $hash;
3183                }
3184
3185                # non-textual hash id's can be cached
3186                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3187                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3188                        $expires = '+1d';
3189                }
3190
3191                # open patch output
3192                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3193                        or die_error(undef, "Open git-diff failed");
3194        } else  {
3195                die_error('404 Not Found', "Missing one of the blob diff parameters")
3196                        unless %diffinfo;
3197        }
3198
3199        # header
3200        if ($format eq 'html') {
3201                my $formats_nav =
3202                        $cgi->a({-href => href(action=>"blobdiff_plain",
3203                                               hash=>$hash, hash_parent=>$hash_parent,
3204                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3205                                               file_name=>$file_name, file_parent=>$file_parent)},
3206                                "raw");
3207                git_header_html(undef, $expires);
3208                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3209                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3210                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3211                } else {
3212                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3213                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3214                }
3215                if (defined $file_name) {
3216                        git_print_page_path($file_name, "blob", $hash_base);
3217                } else {
3218                        print "<div class=\"page_path\"></div>\n";
3219                }
3220
3221        } elsif ($format eq 'plain') {
3222                print $cgi->header(
3223                        -type => 'text/plain',
3224                        -charset => 'utf-8',
3225                        -expires => $expires,
3226                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3227
3228                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3229
3230        } else {
3231                die_error(undef, "Unknown blobdiff format");
3232        }
3233
3234        # patch
3235        if ($format eq 'html') {
3236                print "<div class=\"page_body\">\n";
3237
3238                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3239                close $fd;
3240
3241                print "</div>\n"; # class="page_body"
3242                git_footer_html();
3243
3244        } else {
3245                while (my $line = <$fd>) {
3246                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3247                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3248
3249                        print $line;
3250
3251                        last if $line =~ m!^\+\+\+!;
3252                }
3253                local $/ = undef;
3254                print <$fd>;
3255                close $fd;
3256        }
3257}
3258
3259sub git_blobdiff_plain {
3260        git_blobdiff('plain');
3261}
3262
3263sub git_commitdiff {
3264        my $format = shift || 'html';
3265        my %co = parse_commit($hash);
3266        if (!%co) {
3267                die_error(undef, "Unknown commit object");
3268        }
3269        if (!defined $hash_parent) {
3270                $hash_parent = $co{'parent'} || '--root';
3271        }
3272
3273        # read commitdiff
3274        my $fd;
3275        my @difftree;
3276        if ($format eq 'html') {
3277                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3278                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3279                        or die_error(undef, "Open git-diff-tree failed");
3280
3281                while (chomp(my $line = <$fd>)) {
3282                        # empty line ends raw part of diff-tree output
3283                        last unless $line;
3284                        push @difftree, $line;
3285                }
3286
3287        } elsif ($format eq 'plain') {
3288                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3289                        '-p', $hash_parent, $hash
3290                        or die_error(undef, "Open git-diff-tree failed");
3291
3292        } else {
3293                die_error(undef, "Unknown commitdiff format");
3294        }
3295
3296        # non-textual hash id's can be cached
3297        my $expires;
3298        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3299                $expires = "+1d";
3300        }
3301
3302        # write commit message
3303        if ($format eq 'html') {
3304                my $refs = git_get_references();
3305                my $ref = format_ref_marker($refs, $co{'id'});
3306                my $formats_nav =
3307                        $cgi->a({-href => href(action=>"commitdiff_plain",
3308                                               hash=>$hash, hash_parent=>$hash_parent)},
3309                                "raw");
3310
3311                git_header_html(undef, $expires);
3312                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3313                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3314                git_print_authorship(\%co);
3315                print "<div class=\"page_body\">\n";
3316                print "<div class=\"log\">\n";
3317                git_print_simplified_log($co{'comment'}, 1); # skip title
3318                print "</div>\n"; # class="log"
3319
3320        } elsif ($format eq 'plain') {
3321                my $refs = git_get_references("tags");
3322                my $tagname = git_get_rev_name_tags($hash);
3323                my $filename = basename($project) . "-$hash.patch";
3324
3325                print $cgi->header(
3326                        -type => 'text/plain',
3327                        -charset => 'utf-8',
3328                        -expires => $expires,
3329                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3330                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3331                print <<TEXT;
3332From: $co{'author'}
3333Date: $ad{'rfc2822'} ($ad{'tz_local'})
3334Subject: $co{'title'}
3335TEXT
3336                print "X-Git-Tag: $tagname\n" if $tagname;
3337                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3338
3339                foreach my $line (@{$co{'comment'}}) {
3340                        print "$line\n";
3341                }
3342                print "---\n\n";
3343        }
3344
3345        # write patch
3346        if ($format eq 'html') {
3347                git_difftree_body(\@difftree, $hash, $hash_parent);
3348                print "<br/>\n";
3349
3350                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3351                close $fd;
3352                print "</div>\n"; # class="page_body"
3353                git_footer_html();
3354
3355        } elsif ($format eq 'plain') {
3356                local $/ = undef;
3357                print <$fd>;
3358                close $fd
3359                        or print "Reading git-diff-tree failed\n";
3360        }
3361}
3362
3363sub git_commitdiff_plain {
3364        git_commitdiff('plain');
3365}
3366
3367sub git_history {
3368        if (!defined $hash_base) {
3369                $hash_base = git_get_head_hash($project);
3370        }
3371        if (!defined $page) {
3372                $page = 0;
3373        }
3374        my $ftype;
3375        my %co = parse_commit($hash_base);
3376        if (!%co) {
3377                die_error(undef, "Unknown commit object");
3378        }
3379
3380        my $refs = git_get_references();
3381        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3382
3383        if (!defined $hash && defined $file_name) {
3384                $hash = git_get_hash_by_path($hash_base, $file_name);
3385        }
3386        if (defined $hash) {
3387                $ftype = git_get_type($hash);
3388        }
3389
3390        open my $fd, "-|",
3391                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3392                        or die_error(undef, "Open git-rev-list-failed");
3393        my @revlist = map { chomp; $_ } <$fd>;
3394        close $fd
3395                or die_error(undef, "Reading git-rev-list failed");
3396
3397        my $paging_nav = '';
3398        if ($page > 0) {
3399                $paging_nav .=
3400                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3401                                               file_name=>$file_name)},
3402                                "first");
3403                $paging_nav .= " &sdot; " .
3404                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3405                                               file_name=>$file_name, page=>$page-1),
3406                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3407        } else {
3408                $paging_nav .= "first";
3409                $paging_nav .= " &sdot; prev";
3410        }
3411        if ($#revlist >= (100 * ($page+1)-1)) {
3412                $paging_nav .= " &sdot; " .
3413                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3414                                               file_name=>$file_name, page=>$page+1),
3415                                 -accesskey => "n", -title => "Alt-n"}, "next");
3416        } else {
3417                $paging_nav .= " &sdot; next";
3418        }
3419        my $next_link = '';
3420        if ($#revlist >= (100 * ($page+1)-1)) {
3421                $next_link =
3422                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3423                                               file_name=>$file_name, page=>$page+1),
3424                                 -title => "Alt-n"}, "next");
3425        }
3426
3427        git_header_html();
3428        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3429        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3430        git_print_page_path($file_name, $ftype, $hash_base);
3431
3432        git_history_body(\@revlist, ($page * 100), $#revlist,
3433                         $refs, $hash_base, $ftype, $next_link);
3434
3435        git_footer_html();
3436}
3437
3438sub git_search {
3439        if (!defined $searchtext) {
3440                die_error(undef, "Text field empty");
3441        }
3442        if (!defined $hash) {
3443                $hash = git_get_head_hash($project);
3444        }
3445        my %co = parse_commit($hash);
3446        if (!%co) {
3447                die_error(undef, "Unknown commit object");
3448        }
3449
3450        my $commit_search = 1;
3451        my $author_search = 0;
3452        my $committer_search = 0;
3453        my $pickaxe_search = 0;
3454        if ($searchtext =~ s/^author\\://i) {
3455                $author_search = 1;
3456        } elsif ($searchtext =~ s/^committer\\://i) {
3457                $committer_search = 1;
3458        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3459                $commit_search = 0;
3460                $pickaxe_search = 1;
3461
3462                # pickaxe may take all resources of your box and run for several minutes
3463                # with every query - so decide by yourself how public you make this feature
3464                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3465                if (!$have_pickaxe) {
3466                        die_error('403 Permission denied', "Permission denied");
3467                }
3468        }
3469        git_header_html();
3470        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3471        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3472
3473        print "<table cellspacing=\"0\">\n";
3474        my $alternate = 1;
3475        if ($commit_search) {
3476                $/ = "\0";
3477                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3478                while (my $commit_text = <$fd>) {
3479                        if (!grep m/$searchtext/i, $commit_text) {
3480                                next;
3481                        }
3482                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3483                                next;
3484                        }
3485                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3486                                next;
3487                        }
3488                        my @commit_lines = split "\n", $commit_text;
3489                        my %co = parse_commit(undef, \@commit_lines);
3490                        if (!%co) {
3491                                next;
3492                        }
3493                        if ($alternate) {
3494                                print "<tr class=\"dark\">\n";
3495                        } else {
3496                                print "<tr class=\"light\">\n";
3497                        }
3498                        $alternate ^= 1;
3499                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3500                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3501                              "<td>" .
3502                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3503                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3504                        my $comment = $co{'comment'};
3505                        foreach my $line (@$comment) {
3506                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3507                                        my $lead = esc_html($1) || "";
3508                                        $lead = chop_str($lead, 30, 10);
3509                                        my $match = esc_html($2) || "";
3510                                        my $trail = esc_html($3) || "";
3511                                        $trail = chop_str($trail, 30, 10);
3512                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3513                                        print chop_str($text, 80, 5) . "<br/>\n";
3514                                }
3515                        }
3516                        print "</td>\n" .
3517                              "<td class=\"link\">" .
3518                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3519                              " | " .
3520                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3521                        print "</td>\n" .
3522                              "</tr>\n";
3523                }
3524                close $fd;
3525        }
3526
3527        if ($pickaxe_search) {
3528                $/ = "\n";
3529                my $git_command = git_cmd_str();
3530                open my $fd, "-|", "$git_command rev-list $hash | " .
3531                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3532                undef %co;
3533                my @files;
3534                while (my $line = <$fd>) {
3535                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3536                                my %set;
3537                                $set{'file'} = $6;
3538                                $set{'from_id'} = $3;
3539                                $set{'to_id'} = $4;
3540                                $set{'id'} = $set{'to_id'};
3541                                if ($set{'id'} =~ m/0{40}/) {
3542                                        $set{'id'} = $set{'from_id'};
3543                                }
3544                                if ($set{'id'} =~ m/0{40}/) {
3545                                        next;
3546                                }
3547                                push @files, \%set;
3548                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3549                                if (%co) {
3550                                        if ($alternate) {
3551                                                print "<tr class=\"dark\">\n";
3552                                        } else {
3553                                                print "<tr class=\"light\">\n";
3554                                        }
3555                                        $alternate ^= 1;
3556                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3557                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3558                                              "<td>" .
3559                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3560                                                      -class => "list subject"},
3561                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3562                                        while (my $setref = shift @files) {
3563                                                my %set = %$setref;
3564                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3565                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3566                                                              -class => "list"},
3567                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3568                                                      "<br/>\n";
3569                                        }
3570                                        print "</td>\n" .
3571                                              "<td class=\"link\">" .
3572                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3573                                              " | " .
3574                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3575                                        print "</td>\n" .
3576                                              "</tr>\n";
3577                                }
3578                                %co = parse_commit($1);
3579                        }
3580                }
3581                close $fd;
3582        }
3583        print "</table>\n";
3584        git_footer_html();
3585}
3586
3587sub git_shortlog {
3588        my $head = git_get_head_hash($project);
3589        if (!defined $hash) {
3590                $hash = $head;
3591        }
3592        if (!defined $page) {
3593                $page = 0;
3594        }
3595        my $refs = git_get_references();
3596
3597        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3598        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3599                or die_error(undef, "Open git-rev-list failed");
3600        my @revlist = map { chomp; $_ } <$fd>;
3601        close $fd;
3602
3603        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3604        my $next_link = '';
3605        if ($#revlist >= (100 * ($page+1)-1)) {
3606                $next_link =
3607                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3608                                 -title => "Alt-n"}, "next");
3609        }
3610
3611
3612        git_header_html();
3613        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3614        git_print_header_div('summary', $project);
3615
3616        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3617
3618        git_footer_html();
3619}
3620
3621## ......................................................................
3622## feeds (RSS, OPML)
3623
3624sub git_rss {
3625        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3626        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3627                or die_error(undef, "Open git-rev-list failed");
3628        my @revlist = map { chomp; $_ } <$fd>;
3629        close $fd or die_error(undef, "Reading git-rev-list failed");
3630        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3631        print <<XML;
3632<?xml version="1.0" encoding="utf-8"?>
3633<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3634<channel>
3635<title>$project $my_uri $my_url</title>
3636<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3637<description>$project log</description>
3638<language>en</language>
3639XML
3640
3641        for (my $i = 0; $i <= $#revlist; $i++) {
3642                my $commit = $revlist[$i];
3643                my %co = parse_commit($commit);
3644                # we read 150, we always show 30 and the ones more recent than 48 hours
3645                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3646                        last;
3647                }
3648                my %cd = parse_date($co{'committer_epoch'});
3649                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3650                        $co{'parent'}, $co{'id'}
3651                        or next;
3652                my @difftree = map { chomp; $_ } <$fd>;
3653                close $fd
3654                        or next;
3655                print "<item>\n" .
3656                      "<title>" .
3657                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3658                      "</title>\n" .
3659                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3660                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3661                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3662                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3663                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3664                      "<content:encoded>" .
3665                      "<![CDATA[\n";
3666                my $comment = $co{'comment'};
3667                foreach my $line (@$comment) {
3668                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3669                        print "$line<br/>\n";
3670                }
3671                print "<br/>\n";
3672                foreach my $line (@difftree) {
3673                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3674                                next;
3675                        }
3676                        my $file = esc_html(unquote($7));
3677                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3678                        print "$file<br/>\n";
3679                }
3680                print "]]>\n" .
3681                      "</content:encoded>\n" .
3682                      "</item>\n";
3683        }
3684        print "</channel></rss>";
3685}
3686
3687sub git_opml {
3688        my @list = git_get_projects_list();
3689
3690        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3691        print <<XML;
3692<?xml version="1.0" encoding="utf-8"?>
3693<opml version="1.0">
3694<head>
3695  <title>$site_name Git OPML Export</title>
3696</head>
3697<body>
3698<outline text="git RSS feeds">
3699XML
3700
3701        foreach my $pr (@list) {
3702                my %proj = %$pr;
3703                my $head = git_get_head_hash($proj{'path'});
3704                if (!defined $head) {
3705                        next;
3706                }
3707                $git_dir = "$projectroot/$proj{'path'}";
3708                my %co = parse_commit($head);
3709                if (!%co) {
3710                        next;
3711                }
3712
3713                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3714                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3715                my $html = "$my_url?p=$proj{'path'};a=summary";
3716                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3717        }
3718        print <<XML;
3719</outline>
3720</body>
3721</opml>
3722XML
3723}