git.oblomov.eu Git - 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
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $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
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $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
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # filename of html text to include at top of each page
  45 our $site_header = "++GITWEB_SITE_HEADER++";
  46 # html text to include at home page
  47 our $home_text = "++GITWEB_HOMETEXT++";
  48 # filename of html text to include at bottom of each page
  49 our $site_footer = "++GITWEB_SITE_FOOTER++";
  50
  51 # URI of stylesheets
  52 our @stylesheets = ("++GITWEB_CSS++");
  53 our $stylesheet;
  54 # default is not to define style sheet, but it can be overwritten later
  55 undef $stylesheet;
  56
  57 # URI of default stylesheet
  58 our $stylesheet = "++GITWEB_CSS++";
  59 # URI of GIT logo (72x27 size)
  60 our $logo = "++GITWEB_LOGO++";
  61 # URI of GIT favicon, assumed to be image/png type
  62 our $favicon = "++GITWEB_FAVICON++";
  63
  64 # URI and label (title) of GIT logo link
  65 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  66 #our $logo_label = "git documentation";
  67 our $logo_url = "http://git.or.cz/";
  68 our $logo_label = "git homepage";
  69
  70 # source of projects list
  71 our $projects_list = "++GITWEB_LIST++";
  72
  73 # show repository only if this file exists
  74 # (only effective if this variable evaluates to true)
  75 our $export_ok = "++GITWEB_EXPORT_OK++";
  76
  77 # only allow viewing of repositories also shown on the overview page
  78 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  79
  80 # list of git base URLs used for URL to where fetch project from,
  81 # i.e. full URL is "$git_base_url/$project"
  82 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  83
  84 # default blob_plain mimetype and default charset for text/plain blob
  85 our $default_blob_plain_mimetype = 'text/plain';
  86 our $default_text_plain_charset  = undef;
  87
  88 # file to use for guessing MIME types before trying /etc/mime.types
  89 # (relative to the current git repository)
  90 our $mimetypes_file = undef;
  91
  92 # You define site-wide feature defaults here; override them with
  93 # $GITWEB_CONFIG as necessary.
  94 our %feature = (
  95         # feature => {
  96         #       'sub' => feature-sub (subroutine),
  97         #       'override' => allow-override (boolean),
  98         #       'default' => [ default options...] (array reference)}
  99         #
 100         # if feature is overridable (it means that allow-override has true value,
 101         # then feature-sub will be called with default options as parameters;
 102         # return value of feature-sub indicates if to enable specified feature
 103         #
 104         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 105
 106         # Enable the 'blame' blob view, showing the last commit that modified
 107         # each line in the file. This can be very CPU-intensive.
 108
 109         # To enable system wide have in $GITWEB_CONFIG
 110         # $feature{'blame'}{'default'} = [1];
 111         # To have project specific config enable override in $GITWEB_CONFIG
 112         # $feature{'blame'}{'override'} = 1;
 113         # and in project config gitweb.blame = 0|1;
 114         'blame' => {
 115                 'sub' => \&feature_blame,
 116                 'override' => 0,
 117                 'default' => [0]},
 118
 119         # Enable the 'snapshot' link, providing a compressed tarball of any
 120         # tree. This can potentially generate high traffic if you have large
 121         # project.
 122
 123         # To disable system wide have in $GITWEB_CONFIG
 124         # $feature{'snapshot'}{'default'} = [undef];
 125         # To have project specific config enable override in $GITWEB_CONFIG
 126         # $feature{'blame'}{'override'} = 1;
 127         # and in project config gitweb.snapshot = none|gzip|bzip2;
 128         'snapshot' => {
 129                 'sub' => \&feature_snapshot,
 130                 'override' => 0,
 131                 #         => [content-encoding, suffix, program]
 132                 'default' => ['x-gzip', 'gz', 'gzip']},
 133
 134         # Enable the pickaxe search, which will list the commits that modified
 135         # a given string in a file. This can be practical and quite faster
 136         # alternative to 'blame', but still potentially CPU-intensive.
 137
 138         # To enable system wide have in $GITWEB_CONFIG
 139         # $feature{'pickaxe'}{'default'} = [1];
 140         # To have project specific config enable override in $GITWEB_CONFIG
 141         # $feature{'pickaxe'}{'override'} = 1;
 142         # and in project config gitweb.pickaxe = 0|1;
 143         'pickaxe' => {
 144                 'sub' => \&feature_pickaxe,
 145                 'override' => 0,
 146                 'default' => [1]},
 147
 148         # Make gitweb use an alternative format of the URLs which can be
 149         # more readable and natural-looking: project name is embedded
 150         # directly in the path and the query string contains other
 151         # auxiliary information. All gitweb installations recognize
 152         # URL in either format; this configures in which formats gitweb
 153         # generates links.
 154
 155         # To enable system wide have in $GITWEB_CONFIG
 156         # $feature{'pathinfo'}{'default'} = [1];
 157         # Project specific override is not supported.
 158
 159         # Note that you will need to change the default location of CSS,
 160         # favicon, logo and possibly other files to an absolute URL. Also,
 161         # if gitweb.cgi serves as your indexfile, you will need to force
 162         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 163         'pathinfo' => {
 164                 'override' => 0,
 165                 'default' => [0]},
 166 );
 167
 168 sub gitweb_check_feature {
 169         my ($name) = @_;
 170         return unless exists $feature{$name};
 171         my ($sub, $override, @defaults) = (
 172                 $feature{$name}{'sub'},
 173                 $feature{$name}{'override'},
 174                 @{$feature{$name}{'default'}});
 175         if (!$override) { return @defaults; }
 176         if (!defined $sub) {
 177                 warn "feature $name is not overrideable";
 178                 return @defaults;
 179         }
 180         return $sub->(@defaults);
 181 }
 182
 183 sub feature_blame {
 184         my ($val) = git_get_project_config('blame', '--bool');
 185
 186         if ($val eq 'true') {
 187                 return 1;
 188         } elsif ($val eq 'false') {
 189                 return 0;
 190         }
 191
 192         return $_[0];
 193 }
 194
 195 sub feature_snapshot {
 196         my ($ctype, $suffix, $command) = @_;
 197
 198         my ($val) = git_get_project_config('snapshot');
 199
 200         if ($val eq 'gzip') {
 201                 return ('x-gzip', 'gz', 'gzip');
 202         } elsif ($val eq 'bzip2') {
 203                 return ('x-bzip2', 'bz2', 'bzip2');
 204         } elsif ($val eq 'none') {
 205                 return ();
 206         }
 207
 208         return ($ctype, $suffix, $command);
 209 }
 210
 211 sub gitweb_have_snapshot {
 212         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 213         my $have_snapshot = (defined $ctype && defined $suffix);
 214
 215         return $have_snapshot;
 216 }
 217
 218 sub feature_pickaxe {
 219         my ($val) = git_get_project_config('pickaxe', '--bool');
 220
 221         if ($val eq 'true') {
 222                 return (1);
 223         } elsif ($val eq 'false') {
 224                 return (0);
 225         }
 226
 227         return ($_[0]);
 228 }
 229
 230 # checking HEAD file with -e is fragile if the repository was
 231 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 232 # and then pruned.
 233 sub check_head_link {
 234         my ($dir) = @_;
 235         my $headfile = "$dir/HEAD";
 236         return ((-e $headfile) ||
 237                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 238 }
 239
 240 sub check_export_ok {
 241         my ($dir) = @_;
 242         return (check_head_link($dir) &&
 243                 (!$export_ok || -e "$dir/$export_ok"));
 244 }
 245
 246 # rename detection options for git-diff and git-diff-tree
 247 # - default is '-M', with the cost proportional to
 248 #   (number of removed files) * (number of new files).
 249 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 250 #   (number of changed files + number of removed files) * (number of new files)
 251 # - even more costly is '-C', '--find-copies-harder' with cost
 252 #   (number of files in the original tree) * (number of new files)
 253 # - one might want to include '-B' option, e.g. '-B', '-M'
 254 our @diff_opts = ('-M'); # taken from git_commit
 255
 256 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 257 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 258
 259 # version of the core git binary
 260 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 261
 262 $projects_list ||= $projectroot;
 263
 264 # ======================================================================
 265 # input validation and dispatch
 266 our $action = $cgi->param('a');
 267 if (defined $action) {
 268         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 269                 die_error(undef, "Invalid action parameter");
 270         }
 271 }
 272
 273 # parameters which are pathnames
 274 our $project = $cgi->param('p');
 275 if (defined $project) {
 276         if (!validate_pathname($project) ||
 277             !(-d "$projectroot/$project") ||
 278             !check_head_link("$projectroot/$project") ||
 279             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 280             ($strict_export && !project_in_list($project))) {
 281                 undef $project;
 282                 die_error(undef, "No such project");
 283         }
 284 }
 285
 286 our $file_name = $cgi->param('f');
 287 if (defined $file_name) {
 288         if (!validate_pathname($file_name)) {
 289                 die_error(undef, "Invalid file parameter");
 290         }
 291 }
 292
 293 our $file_parent = $cgi->param('fp');
 294 if (defined $file_parent) {
 295         if (!validate_pathname($file_parent)) {
 296                 die_error(undef, "Invalid file parent parameter");
 297         }
 298 }
 299
 300 # parameters which are refnames
 301 our $hash = $cgi->param('h');
 302 if (defined $hash) {
 303         if (!validate_refname($hash)) {
 304                 die_error(undef, "Invalid hash parameter");
 305         }
 306 }
 307
 308 our $hash_parent = $cgi->param('hp');
 309 if (defined $hash_parent) {
 310         if (!validate_refname($hash_parent)) {
 311                 die_error(undef, "Invalid hash parent parameter");
 312         }
 313 }
 314
 315 our $hash_base = $cgi->param('hb');
 316 if (defined $hash_base) {
 317         if (!validate_refname($hash_base)) {
 318                 die_error(undef, "Invalid hash base parameter");
 319         }
 320 }
 321
 322 our $hash_parent_base = $cgi->param('hpb');
 323 if (defined $hash_parent_base) {
 324         if (!validate_refname($hash_parent_base)) {
 325                 die_error(undef, "Invalid hash parent base parameter");
 326         }
 327 }
 328
 329 # other parameters
 330 our $page = $cgi->param('pg');
 331 if (defined $page) {
 332         if ($page =~ m/[^0-9]/) {
 333                 die_error(undef, "Invalid page parameter");
 334         }
 335 }
 336
 337 our $searchtext = $cgi->param('s');
 338 if (defined $searchtext) {
 339         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 340                 die_error(undef, "Invalid search parameter");
 341         }
 342         $searchtext = quotemeta $searchtext;
 343 }
 344
 345 # now read PATH_INFO and use it as alternative to parameters
 346 sub evaluate_path_info {
 347         return if defined $project;
 348         my $path_info = $ENV{"PATH_INFO"};
 349         return if !$path_info;
 350         $path_info =~ s,^/+,,;
 351         return if !$path_info;
 352         # find which part of PATH_INFO is project
 353         $project = $path_info;
 354         $project =~ s,/+$,,;
 355         while ($project && !check_head_link("$projectroot/$project")) {
 356                 $project =~ s,/*[^/]*$,,;
 357         }
 358         # validate project
 359         $project = validate_pathname($project);
 360         if (!$project ||
 361             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 362             ($strict_export && !project_in_list($project))) {
 363                 undef $project;
 364                 return;
 365         }
 366         # do not change any parameters if an action is given using the query string
 367         return if $action;
 368         $path_info =~ s,^$project/*,,;
 369         my ($refname, $pathname) = split(/:/, $path_info, 2);
 370         if (defined $pathname) {
 371                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 372                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 373                 $pathname =~ s,^/+,,;
 374                 if (!$pathname || substr($pathname, -1) eq "/") {
 375                         $action  ||= "tree";
 376                         $pathname =~ s,/$,,;
 377                 } else {
 378                         $action  ||= "blob_plain";
 379                 }
 380                 $hash_base ||= validate_refname($refname);
 381                 $file_name ||= validate_pathname($pathname);
 382         } elsif (defined $refname) {
 383                 # we got "project.git/branch"
 384                 $action ||= "shortlog";
 385                 $hash   ||= validate_refname($refname);
 386         }
 387 }
 388 evaluate_path_info();
 389
 390 # path to the current git repository
 391 our $git_dir;
 392 $git_dir = "$projectroot/$project" if $project;
 393
 394 # dispatch
 395 my %actions = (
 396         "blame" => \&git_blame2,
 397         "blobdiff" => \&git_blobdiff,
 398         "blobdiff_plain" => \&git_blobdiff_plain,
 399         "blob" => \&git_blob,
 400         "blob_plain" => \&git_blob_plain,
 401         "commitdiff" => \&git_commitdiff,
 402         "commitdiff_plain" => \&git_commitdiff_plain,
 403         "commit" => \&git_commit,
 404         "heads" => \&git_heads,
 405         "history" => \&git_history,
 406         "log" => \&git_log,
 407         "rss" => \&git_rss,
 408         "search" => \&git_search,
 409         "shortlog" => \&git_shortlog,
 410         "summary" => \&git_summary,
 411         "tag" => \&git_tag,
 412         "tags" => \&git_tags,
 413         "tree" => \&git_tree,
 414         "snapshot" => \&git_snapshot,
 415         # those below don't need $project
 416         "opml" => \&git_opml,
 417         "project_list" => \&git_project_list,
 418         "project_index" => \&git_project_index,
 419 );
 420
 421 if (defined $project) {
 422         $action ||= 'summary';
 423 } else {
 424         $action ||= 'project_list';
 425 }
 426 if (!defined($actions{$action})) {
 427         die_error(undef, "Unknown action");
 428 }
 429 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 430     !$project) {
 431         die_error(undef, "Project needed");
 432 }
 433 $actions{$action}->();
 434 exit;
 435
 436 ## ======================================================================
 437 ## action links
 438
 439 sub href(%) {
 440         my %params = @_;
 441         my $href = $my_uri;
 442
 443         # XXX: Warning: If you touch this, check the search form for updating,
 444         # too.
 445
 446         my @mapping = (
 447                 project => "p",
 448                 action => "a",
 449                 file_name => "f",
 450                 file_parent => "fp",
 451                 hash => "h",
 452                 hash_parent => "hp",
 453                 hash_base => "hb",
 454                 hash_parent_base => "hpb",
 455                 page => "pg",
 456                 order => "o",
 457                 searchtext => "s",
 458         );
 459         my %mapping = @mapping;
 460
 461         $params{'project'} = $project unless exists $params{'project'};
 462
 463         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 464         if ($use_pathinfo) {
 465                 # use PATH_INFO for project name
 466                 $href .= "/$params{'project'}" if defined $params{'project'};
 467                 delete $params{'project'};
 468
 469                 # Summary just uses the project path URL
 470                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 471                         delete $params{'action'};
 472                 }
 473         }
 474
 475         # now encode the parameters explicitly
 476         my @result = ();
 477         for (my $i = 0; $i < @mapping; $i += 2) {
 478                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 479                 if (defined $params{$name}) {
 480                         push @result, $symbol . "=" . esc_param($params{$name});
 481                 }
 482         }
 483         $href .= "?" . join(';', @result) if scalar @result;
 484
 485         return $href;
 486 }
 487
 488
 489 ## ======================================================================
 490 ## validation, quoting/unquoting and escaping
 491
 492 sub validate_pathname {
 493         my $input = shift || return undef;
 494
 495         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 496         # at the beginning, at the end, and between slashes.
 497         # also this catches doubled slashes
 498         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 499                 return undef;
 500         }
 501         # no null characters
 502         if ($input =~ m!\0!) {
 503                 return undef;
 504         }
 505         return $input;
 506 }
 507
 508 sub validate_refname {
 509         my $input = shift || return undef;
 510
 511         # textual hashes are O.K.
 512         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 513                 return $input;
 514         }
 515         # it must be correct pathname
 516         $input = validate_pathname($input)
 517                 or return undef;
 518         # restrictions on ref name according to git-check-ref-format
 519         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 520                 return undef;
 521         }
 522         return $input;
 523 }
 524
 525 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 526 sub to_utf8 {
 527         my $str = shift;
 528         return decode("utf8", $str, Encode::FB_DEFAULT);
 529 }
 530
 531 # quote unsafe chars, but keep the slash, even when it's not
 532 # correct, but quoted slashes look too horrible in bookmarks
 533 sub esc_param {
 534         my $str = shift;
 535         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 536         $str =~ s/\+/%2B/g;
 537         $str =~ s/ /\+/g;
 538         return $str;
 539 }
 540
 541 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 542 sub esc_url {
 543         my $str = shift;
 544         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 545         $str =~ s/\+/%2B/g;
 546         $str =~ s/ /\+/g;
 547         return $str;
 548 }
 549
 550 # replace invalid utf8 character with SUBSTITUTION sequence
 551 sub esc_html {
 552         my $str = shift;
 553         $str = to_utf8($str);
 554         $str = escapeHTML($str);
 555         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 556         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 557         return $str;
 558 }
 559
 560 # git may return quoted and escaped filenames
 561 sub unquote {
 562         my $str = shift;
 563         if ($str =~ m/^"(.*)"$/) {
 564                 $str = $1;
 565                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 566         }
 567         return $str;
 568 }
 569
 570 # escape tabs (convert tabs to spaces)
 571 sub untabify {
 572         my $line = shift;
 573
 574         while ((my $pos = index($line, "\t")) != -1) {
 575                 if (my $count = (8 - ($pos % 8))) {
 576                         my $spaces = ' ' x $count;
 577                         $line =~ s/\t/$spaces/;
 578                 }
 579         }
 580
 581         return $line;
 582 }
 583
 584 sub project_in_list {
 585         my $project = shift;
 586         my @list = git_get_projects_list();
 587         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 588 }
 589
 590 ## ----------------------------------------------------------------------
 591 ## HTML aware string manipulation
 592
 593 sub chop_str {
 594         my $str = shift;
 595         my $len = shift;
 596         my $add_len = shift || 10;
 597
 598         # allow only $len chars, but don't cut a word if it would fit in $add_len
 599         # if it doesn't fit, cut it if it's still longer than the dots we would add
 600         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 601         my $body = $1;
 602         my $tail = $2;
 603         if (length($tail) > 4) {
 604                 $tail = " ...";
 605                 $body =~ s/&[^;]*$//; # remove chopped character entities
 606         }
 607         return "$body$tail";
 608 }
 609
 610 ## ----------------------------------------------------------------------
 611 ## functions returning short strings
 612
 613 # CSS class for given age value (in seconds)
 614 sub age_class {
 615         my $age = shift;
 616
 617         if ($age < 60*60*2) {
 618                 return "age0";
 619         } elsif ($age < 60*60*24*2) {
 620                 return "age1";
 621         } else {
 622                 return "age2";
 623         }
 624 }
 625
 626 # convert age in seconds to "nn units ago" string
 627 sub age_string {
 628         my $age = shift;
 629         my $age_str;
 630
 631         if ($age > 60*60*24*365*2) {
 632                 $age_str = (int $age/60/60/24/365);
 633                 $age_str .= " years ago";
 634         } elsif ($age > 60*60*24*(365/12)*2) {
 635                 $age_str = int $age/60/60/24/(365/12);
 636                 $age_str .= " months ago";
 637         } elsif ($age > 60*60*24*7*2) {
 638                 $age_str = int $age/60/60/24/7;
 639                 $age_str .= " weeks ago";
 640         } elsif ($age > 60*60*24*2) {
 641                 $age_str = int $age/60/60/24;
 642                 $age_str .= " days ago";
 643         } elsif ($age > 60*60*2) {
 644                 $age_str = int $age/60/60;
 645                 $age_str .= " hours ago";
 646         } elsif ($age > 60*2) {
 647                 $age_str = int $age/60;
 648                 $age_str .= " min ago";
 649         } elsif ($age > 2) {
 650                 $age_str = int $age;
 651                 $age_str .= " sec ago";
 652         } else {
 653                 $age_str .= " right now";
 654         }
 655         return $age_str;
 656 }
 657
 658 # convert file mode in octal to symbolic file mode string
 659 sub mode_str {
 660         my $mode = oct shift;
 661
 662         if (S_ISDIR($mode & S_IFMT)) {
 663                 return 'drwxr-xr-x';
 664         } elsif (S_ISLNK($mode)) {
 665                 return 'lrwxrwxrwx';
 666         } elsif (S_ISREG($mode)) {
 667                 # git cares only about the executable bit
 668                 if ($mode & S_IXUSR) {
 669                         return '-rwxr-xr-x';
 670                 } else {
 671                         return '-rw-r--r--';
 672                 };
 673         } else {
 674                 return '----------';
 675         }
 676 }
 677
 678 # convert file mode in octal to file type string
 679 sub file_type {
 680         my $mode = shift;
 681
 682         if ($mode !~ m/^[0-7]+$/) {
 683                 return $mode;
 684         } else {
 685                 $mode = oct $mode;
 686         }
 687
 688         if (S_ISDIR($mode & S_IFMT)) {
 689                 return "directory";
 690         } elsif (S_ISLNK($mode)) {
 691                 return "symlink";
 692         } elsif (S_ISREG($mode)) {
 693                 return "file";
 694         } else {
 695                 return "unknown";
 696         }
 697 }
 698
 699 ## ----------------------------------------------------------------------
 700 ## functions returning short HTML fragments, or transforming HTML fragments
 701 ## which don't beling to other sections
 702
 703 # format line of commit message or tag comment
 704 sub format_log_line_html {
 705         my $line = shift;
 706
 707         $line = esc_html($line);
 708         $line =~ s/ /&nbsp;/g;
 709         if ($line =~ m/([0-9a-fA-F]{40})/) {
 710                 my $hash_text = $1;
 711                 if (git_get_type($hash_text) eq "commit") {
 712                         my $link =
 713                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 714                                         -class => "text"}, $hash_text);
 715                         $line =~ s/$hash_text/$link/;
 716                 }
 717         }
 718         return $line;
 719 }
 720
 721 # format marker of refs pointing to given object
 722 sub format_ref_marker {
 723         my ($refs, $id) = @_;
 724         my $markers = '';
 725
 726         if (defined $refs->{$id}) {
 727                 foreach my $ref (@{$refs->{$id}}) {
 728                         my ($type, $name) = qw();
 729                         # e.g. tags/v2.6.11 or heads/next
 730                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 731                                 $type = $1;
 732                                 $name = $2;
 733                         } else {
 734                                 $type = "ref";
 735                                 $name = $ref;
 736                         }
 737
 738                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 739                 }
 740         }
 741
 742         if ($markers) {
 743                 return ' <span class="refs">'. $markers . '</span>';
 744         } else {
 745                 return "";
 746         }
 747 }
 748
 749 # format, perhaps shortened and with markers, title line
 750 sub format_subject_html {
 751         my ($long, $short, $href, $extra) = @_;
 752         $extra = '' unless defined($extra);
 753
 754         if (length($short) < length($long)) {
 755                 return $cgi->a({-href => $href, -class => "list subject",
 756                                 -title => to_utf8($long)},
 757                        esc_html($short) . $extra);
 758         } else {
 759                 return $cgi->a({-href => $href, -class => "list subject"},
 760                        esc_html($long)  . $extra);
 761         }
 762 }
 763
 764 sub format_diff_line {
 765         my $line = shift;
 766         my $char = substr($line, 0, 1);
 767         my $diff_class = "";
 768
 769         chomp $line;
 770
 771         if ($char eq '+') {
 772                 $diff_class = " add";
 773         } elsif ($char eq "-") {
 774                 $diff_class = " rem";
 775         } elsif ($char eq "@") {
 776                 $diff_class = " chunk_header";
 777         } elsif ($char eq "\\") {
 778                 $diff_class = " incomplete";
 779         }
 780         $line = untabify($line);
 781         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 782 }
 783
 784 ## ----------------------------------------------------------------------
 785 ## git utility subroutines, invoking git commands
 786
 787 # returns path to the core git executable and the --git-dir parameter as list
 788 sub git_cmd {
 789         return $GIT, '--git-dir='.$git_dir;
 790 }
 791
 792 # returns path to the core git executable and the --git-dir parameter as string
 793 sub git_cmd_str {
 794         return join(' ', git_cmd());
 795 }
 796
 797 # get HEAD ref of given project as hash
 798 sub git_get_head_hash {
 799         my $project = shift;
 800         my $o_git_dir = $git_dir;
 801         my $retval = undef;
 802         $git_dir = "$projectroot/$project";
 803         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 804                 my $head = <$fd>;
 805                 close $fd;
 806                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 807                         $retval = $1;
 808                 }
 809         }
 810         if (defined $o_git_dir) {
 811                 $git_dir = $o_git_dir;
 812         }
 813         return $retval;
 814 }
 815
 816 # get type of given object
 817 sub git_get_type {
 818         my $hash = shift;
 819
 820         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 821         my $type = <$fd>;
 822         close $fd or return;
 823         chomp $type;
 824         return $type;
 825 }
 826
 827 sub git_get_project_config {
 828         my ($key, $type) = @_;
 829
 830         return unless ($key);
 831         $key =~ s/^gitweb\.//;
 832         return if ($key =~ m/\W/);
 833
 834         my @x = (git_cmd(), 'repo-config');
 835         if (defined $type) { push @x, $type; }
 836         push @x, "--get";
 837         push @x, "gitweb.$key";
 838         my $val = qx(@x);
 839         chomp $val;
 840         return ($val);
 841 }
 842
 843 # get hash of given path at given ref
 844 sub git_get_hash_by_path {
 845         my $base = shift;
 846         my $path = shift || return undef;
 847         my $type = shift;
 848
 849         $path =~ s,/+$,,;
 850
 851         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 852                 or die_error(undef, "Open git-ls-tree failed");
 853         my $line = <$fd>;
 854         close $fd or return undef;
 855
 856         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 857         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 858         if (defined $type && $type ne $2) {
 859                 # type doesn't match
 860                 return undef;
 861         }
 862         return $3;
 863 }
 864
 865 ## ......................................................................
 866 ## git utility functions, directly accessing git repository
 867
 868 sub git_get_project_description {
 869         my $path = shift;
 870
 871         open my $fd, "$projectroot/$path/description" or return undef;
 872         my $descr = <$fd>;
 873         close $fd;
 874         chomp $descr;
 875         return $descr;
 876 }
 877
 878 sub git_get_project_url_list {
 879         my $path = shift;
 880
 881         open my $fd, "$projectroot/$path/cloneurl" or return;
 882         my @git_project_url_list = map { chomp; $_ } <$fd>;
 883         close $fd;
 884
 885         return wantarray ? @git_project_url_list : \@git_project_url_list;
 886 }
 887
 888 sub git_get_projects_list {
 889         my @list;
 890
 891         if (-d $projects_list) {
 892                 # search in directory
 893                 my $dir = $projects_list;
 894                 my $pfxlen = length("$dir");
 895
 896                 File::Find::find({
 897                         follow_fast => 1, # follow symbolic links
 898                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 899                         wanted => sub {
 900                                 # skip project-list toplevel, if we get it.
 901                                 return if (m!^[/.]$!);
 902                                 # only directories can be git repositories
 903                                 return unless (-d $_);
 904
 905                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 906                                 # we check related file in $projectroot
 907                                 if (check_export_ok("$projectroot/$subdir")) {
 908                                         push @list, { path => $subdir };
 909                                         $File::Find::prune = 1;
 910                                 }
 911                         },
 912                 }, "$dir");
 913
 914         } elsif (-f $projects_list) {
 915                 # read from file(url-encoded):
 916                 # 'git%2Fgit.git Linus+Torvalds'
 917                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 918                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 919                 open my ($fd), $projects_list or return;
 920                 while (my $line = <$fd>) {
 921                         chomp $line;
 922                         my ($path, $owner) = split ' ', $line;
 923                         $path = unescape($path);
 924                         $owner = unescape($owner);
 925                         if (!defined $path) {
 926                                 next;
 927                         }
 928                         if (check_export_ok("$projectroot/$path")) {
 929                                 my $pr = {
 930                                         path => $path,
 931                                         owner => to_utf8($owner),
 932                                 };
 933                                 push @list, $pr
 934                         }
 935                 }
 936                 close $fd;
 937         }
 938         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 939         return @list;
 940 }
 941
 942 sub git_get_project_owner {
 943         my $project = shift;
 944         my $owner;
 945
 946         return undef unless $project;
 947
 948         # read from file (url-encoded):
 949         # 'git%2Fgit.git Linus+Torvalds'
 950         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 951         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 952         if (-f $projects_list) {
 953                 open (my $fd , $projects_list);
 954                 while (my $line = <$fd>) {
 955                         chomp $line;
 956                         my ($pr, $ow) = split ' ', $line;
 957                         $pr = unescape($pr);
 958                         $ow = unescape($ow);
 959                         if ($pr eq $project) {
 960                                 $owner = to_utf8($ow);
 961                                 last;
 962                         }
 963                 }
 964                 close $fd;
 965         }
 966         if (!defined $owner) {
 967                 $owner = get_file_owner("$projectroot/$project");
 968         }
 969
 970         return $owner;
 971 }
 972
 973 sub git_get_references {
 974         my $type = shift || "";
 975         my %refs;
 976         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 977         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 978         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 979                 or return;
 980
 981         while (my $line = <$fd>) {
 982                 chomp $line;
 983                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 984                         if (defined $refs{$1}) {
 985                                 push @{$refs{$1}}, $2;
 986                         } else {
 987                                 $refs{$1} = [ $2 ];
 988                         }
 989                 }
 990         }
 991         close $fd or return;
 992         return \%refs;
 993 }
 994
 995 sub git_get_rev_name_tags {
 996         my $hash = shift || return undef;
 997
 998         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 999                 or return;
1000         my $name_rev = <$fd>;
1001         close $fd;
1002
1003         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1004                 return $1;
1005         } else {
1006                 # catches also '$hash undefined' output
1007                 return undef;
1008         }
1009 }
1010
1011 ## ----------------------------------------------------------------------
1012 ## parse to hash functions
1013
1014 sub parse_date {
1015         my $epoch = shift;
1016         my $tz = shift || "-0000";
1017
1018         my %date;
1019         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1020         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1021         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1022         $date{'hour'} = $hour;
1023         $date{'minute'} = $min;
1024         $date{'mday'} = $mday;
1025         $date{'day'} = $days[$wday];
1026         $date{'month'} = $months[$mon];
1027         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1028                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1029         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1030                              $mday, $months[$mon], $hour ,$min;
1031
1032         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1033         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1034         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1035         $date{'hour_local'} = $hour;
1036         $date{'minute_local'} = $min;
1037         $date{'tz_local'} = $tz;
1038         return %date;
1039 }
1040
1041 sub parse_tag {
1042         my $tag_id = shift;
1043         my %tag;
1044         my @comment;
1045
1046         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1047         $tag{'id'} = $tag_id;
1048         while (my $line = <$fd>) {
1049                 chomp $line;
1050                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1051                         $tag{'object'} = $1;
1052                 } elsif ($line =~ m/^type (.+)$/) {
1053                         $tag{'type'} = $1;
1054                 } elsif ($line =~ m/^tag (.+)$/) {
1055                         $tag{'name'} = $1;
1056                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1057                         $tag{'author'} = $1;
1058                         $tag{'epoch'} = $2;
1059                         $tag{'tz'} = $3;
1060                 } elsif ($line =~ m/--BEGIN/) {
1061                         push @comment, $line;
1062                         last;
1063                 } elsif ($line eq "") {
1064                         last;
1065                 }
1066         }
1067         push @comment, <$fd>;
1068         $tag{'comment'} = \@comment;
1069         close $fd or return;
1070         if (!defined $tag{'name'}) {
1071                 return
1072         };
1073         return %tag
1074 }
1075
1076 sub git_get_last_activity {
1077         my ($path) = @_;
1078         my $fd;
1079
1080         $git_dir = "$projectroot/$path";
1081         open($fd, "-|", git_cmd(), 'for-each-ref',
1082              '--format=%(refname) %(committer)',
1083              '--sort=-committerdate',
1084              'refs/heads') or return;
1085         my $most_recent = <$fd>;
1086         close $fd or return;
1087         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1088                 my $timestamp = $1;
1089                 my $age = time - $timestamp;
1090                 return ($age, age_string($age));
1091         }
1092 }
1093
1094 sub parse_commit {
1095         my $commit_id = shift;
1096         my $commit_text = shift;
1097
1098         my @commit_lines;
1099         my %co;
1100
1101         if (defined $commit_text) {
1102                 @commit_lines = @$commit_text;
1103         } else {
1104                 local $/ = "\0";
1105                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1106                         or return;
1107                 @commit_lines = split '\n', <$fd>;
1108                 close $fd or return;
1109                 pop @commit_lines;
1110         }
1111         my $header = shift @commit_lines;
1112         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1113                 return;
1114         }
1115         ($co{'id'}, my @parents) = split ' ', $header;
1116         $co{'parents'} = \@parents;
1117         $co{'parent'} = $parents[0];
1118         while (my $line = shift @commit_lines) {
1119                 last if $line eq "\n";
1120                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1121                         $co{'tree'} = $1;
1122                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1123                         $co{'author'} = $1;
1124                         $co{'author_epoch'} = $2;
1125                         $co{'author_tz'} = $3;
1126                         if ($co{'author'} =~ m/^([^<]+) </) {
1127                                 $co{'author_name'} = $1;
1128                         } else {
1129                                 $co{'author_name'} = $co{'author'};
1130                         }
1131                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1132                         $co{'committer'} = $1;
1133                         $co{'committer_epoch'} = $2;
1134                         $co{'committer_tz'} = $3;
1135                         $co{'committer_name'} = $co{'committer'};
1136                         $co{'committer_name'} =~ s/ <.*//;
1137                 }
1138         }
1139         if (!defined $co{'tree'}) {
1140                 return;
1141         };
1142
1143         foreach my $title (@commit_lines) {
1144                 $title =~ s/^    //;
1145                 if ($title ne "") {
1146                         $co{'title'} = chop_str($title, 80, 5);
1147                         # remove leading stuff of merges to make the interesting part visible
1148                         if (length($title) > 50) {
1149                                 $title =~ s/^Automatic //;
1150                                 $title =~ s/^merge (of|with) /Merge ... /i;
1151                                 if (length($title) > 50) {
1152                                         $title =~ s/(http|rsync):\/\///;
1153                                 }
1154                                 if (length($title) > 50) {
1155                                         $title =~ s/(master|www|rsync)\.//;
1156                                 }
1157                                 if (length($title) > 50) {
1158                                         $title =~ s/kernel.org:?//;
1159                                 }
1160                                 if (length($title) > 50) {
1161                                         $title =~ s/\/pub\/scm//;
1162                                 }
1163                         }
1164                         $co{'title_short'} = chop_str($title, 50, 5);
1165                         last;
1166                 }
1167         }
1168         if ($co{'title'} eq "") {
1169                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1170         }
1171         # remove added spaces
1172         foreach my $line (@commit_lines) {
1173                 $line =~ s/^    //;
1174         }
1175         $co{'comment'} = \@commit_lines;
1176
1177         my $age = time - $co{'committer_epoch'};
1178         $co{'age'} = $age;
1179         $co{'age_string'} = age_string($age);
1180         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1181         if ($age > 60*60*24*7*2) {
1182                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1183                 $co{'age_string_age'} = $co{'age_string'};
1184         } else {
1185                 $co{'age_string_date'} = $co{'age_string'};
1186                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1187         }
1188         return %co;
1189 }
1190
1191 # parse ref from ref_file, given by ref_id, with given type
1192 sub parse_ref {
1193         my $ref_file = shift;
1194         my $ref_id = shift;
1195         my $type = shift || git_get_type($ref_id);
1196         my %ref_item;
1197
1198         $ref_item{'type'} = $type;
1199         $ref_item{'id'} = $ref_id;
1200         $ref_item{'epoch'} = 0;
1201         $ref_item{'age'} = "unknown";
1202         if ($type eq "tag") {
1203                 my %tag = parse_tag($ref_id);
1204                 $ref_item{'comment'} = $tag{'comment'};
1205                 if ($tag{'type'} eq "commit") {
1206                         my %co = parse_commit($tag{'object'});
1207                         $ref_item{'epoch'} = $co{'committer_epoch'};
1208                         $ref_item{'age'} = $co{'age_string'};
1209                 } elsif (defined($tag{'epoch'})) {
1210                         my $age = time - $tag{'epoch'};
1211                         $ref_item{'epoch'} = $tag{'epoch'};
1212                         $ref_item{'age'} = age_string($age);
1213                 }
1214                 $ref_item{'reftype'} = $tag{'type'};
1215                 $ref_item{'name'} = $tag{'name'};
1216                 $ref_item{'refid'} = $tag{'object'};
1217         } elsif ($type eq "commit"){
1218                 my %co = parse_commit($ref_id);
1219                 $ref_item{'reftype'} = "commit";
1220                 $ref_item{'name'} = $ref_file;
1221                 $ref_item{'title'} = $co{'title'};
1222                 $ref_item{'refid'} = $ref_id;
1223                 $ref_item{'epoch'} = $co{'committer_epoch'};
1224                 $ref_item{'age'} = $co{'age_string'};
1225         } else {
1226                 $ref_item{'reftype'} = $type;
1227                 $ref_item{'name'} = $ref_file;
1228                 $ref_item{'refid'} = $ref_id;
1229         }
1230
1231         return %ref_item;
1232 }
1233
1234 # parse line of git-diff-tree "raw" output
1235 sub parse_difftree_raw_line {
1236         my $line = shift;
1237         my %res;
1238
1239         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1240         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1241         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1242                 $res{'from_mode'} = $1;
1243                 $res{'to_mode'} = $2;
1244                 $res{'from_id'} = $3;
1245                 $res{'to_id'} = $4;
1246                 $res{'status'} = $5;
1247                 $res{'similarity'} = $6;
1248                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1249                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1250                 } else {
1251                         $res{'file'} = unquote($7);
1252                 }
1253         }
1254         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1255         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1256                 $res{'commit'} = $1;
1257         }
1258
1259         return wantarray ? %res : \%res;
1260 }
1261
1262 # parse line of git-ls-tree output
1263 sub parse_ls_tree_line ($;%) {
1264         my $line = shift;
1265         my %opts = @_;
1266         my %res;
1267
1268         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1269         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1270
1271         $res{'mode'} = $1;
1272         $res{'type'} = $2;
1273         $res{'hash'} = $3;
1274         if ($opts{'-z'}) {
1275                 $res{'name'} = $4;
1276         } else {
1277                 $res{'name'} = unquote($4);
1278         }
1279
1280         return wantarray ? %res : \%res;
1281 }
1282
1283 ## ......................................................................
1284 ## parse to array of hashes functions
1285
1286 sub git_get_refs_list {
1287         my $type = shift || "";
1288         my %refs;
1289         my @reflist;
1290
1291         my @refs;
1292         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1293                 or return;
1294         while (my $line = <$fd>) {
1295                 chomp $line;
1296                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1297                         if (defined $refs{$1}) {
1298                                 push @{$refs{$1}}, $2;
1299                         } else {
1300                                 $refs{$1} = [ $2 ];
1301                         }
1302
1303                         if (! $4) { # unpeeled, direct reference
1304                                 push @refs, { hash => $1, name => $3 }; # without type
1305                         } elsif ($3 eq $refs[-1]{'name'}) {
1306                                 # most likely a tag is followed by its peeled
1307                                 # (deref) one, and when that happens we know the
1308                                 # previous one was of type 'tag'.
1309                                 $refs[-1]{'type'} = "tag";
1310                         }
1311                 }
1312         }
1313         close $fd;
1314
1315         foreach my $ref (@refs) {
1316                 my $ref_file = $ref->{'name'};
1317                 my $ref_id   = $ref->{'hash'};
1318
1319                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1320                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1321
1322                 push @reflist, \%ref_item;
1323         }
1324         # sort refs by age
1325         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1326         return (\@reflist, \%refs);
1327 }
1328
1329 ## ----------------------------------------------------------------------
1330 ## filesystem-related functions
1331
1332 sub get_file_owner {
1333         my $path = shift;
1334
1335         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1336         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1337         if (!defined $gcos) {
1338                 return undef;
1339         }
1340         my $owner = $gcos;
1341         $owner =~ s/[,;].*$//;
1342         return to_utf8($owner);
1343 }
1344
1345 ## ......................................................................
1346 ## mimetype related functions
1347
1348 sub mimetype_guess_file {
1349         my $filename = shift;
1350         my $mimemap = shift;
1351         -r $mimemap or return undef;
1352
1353         my %mimemap;
1354         open(MIME, $mimemap) or return undef;
1355         while (<MIME>) {
1356                 next if m/^#/; # skip comments
1357                 my ($mime, $exts) = split(/\t+/);
1358                 if (defined $exts) {
1359                         my @exts = split(/\s+/, $exts);
1360                         foreach my $ext (@exts) {
1361                                 $mimemap{$ext} = $mime;
1362                         }
1363                 }
1364         }
1365         close(MIME);
1366
1367         $filename =~ /\.([^.]*)$/;
1368         return $mimemap{$1};
1369 }
1370
1371 sub mimetype_guess {
1372         my $filename = shift;
1373         my $mime;
1374         $filename =~ /\./ or return undef;
1375
1376         if ($mimetypes_file) {
1377                 my $file = $mimetypes_file;
1378                 if ($file !~ m!^/!) { # if it is relative path
1379                         # it is relative to project
1380                         $file = "$projectroot/$project/$file";
1381                 }
1382                 $mime = mimetype_guess_file($filename, $file);
1383         }
1384         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1385         return $mime;
1386 }
1387
1388 sub blob_mimetype {
1389         my $fd = shift;
1390         my $filename = shift;
1391
1392         if ($filename) {
1393                 my $mime = mimetype_guess($filename);
1394                 $mime and return $mime;
1395         }
1396
1397         # just in case
1398         return $default_blob_plain_mimetype unless $fd;
1399
1400         if (-T $fd) {
1401                 return 'text/plain' .
1402                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1403         } elsif (! $filename) {
1404                 return 'application/octet-stream';
1405         } elsif ($filename =~ m/\.png$/i) {
1406                 return 'image/png';
1407         } elsif ($filename =~ m/\.gif$/i) {
1408                 return 'image/gif';
1409         } elsif ($filename =~ m/\.jpe?g$/i) {
1410                 return 'image/jpeg';
1411         } else {
1412                 return 'application/octet-stream';
1413         }
1414 }
1415
1416 ## ======================================================================
1417 ## functions printing HTML: header, footer, error page
1418
1419 sub git_header_html {
1420         my $status = shift || "200 OK";
1421         my $expires = shift;
1422
1423         my $title = "$site_name git";
1424         if (defined $project) {
1425                 $title .= " - $project";
1426                 if (defined $action) {
1427                         $title .= "/$action";
1428                         if (defined $file_name) {
1429                                 $title .= " - " . esc_html($file_name);
1430                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1431                                         $title .= "/";
1432                                 }
1433                         }
1434                 }
1435         }
1436         my $content_type;
1437         # require explicit support from the UA if we are to send the page as
1438         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1439         # we have to do this because MSIE sometimes globs '*/*', pretending to
1440         # support xhtml+xml but choking when it gets what it asked for.
1441         if (defined $cgi->http('HTTP_ACCEPT') &&
1442             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1443             $cgi->Accept('application/xhtml+xml') != 0) {
1444                 $content_type = 'application/xhtml+xml';
1445         } else {
1446                 $content_type = 'text/html';
1447         }
1448         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1449                            -status=> $status, -expires => $expires);
1450         print <<EOF;
1451 <?xml version="1.0" encoding="utf-8"?>
1452 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1453 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1454 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1455 <!-- git core binaries version $git_version -->
1456 <head>
1457 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1458 <meta name="generator" content="gitweb/$version git/$git_version"/>
1459 <meta name="robots" content="index, nofollow"/>
1460 <title>$title</title>
1461 EOF
1462 # print out each stylesheet that exist
1463         if (defined $stylesheet) {
1464 #provides backwards capability for those people who define style sheet in a config file
1465                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1466         } else {
1467                 foreach my $stylesheet (@stylesheets) {
1468                         next unless $stylesheet;
1469                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1470                 }
1471         }
1472         if (defined $project) {
1473                 printf('<link rel="alternate" title="%s log" '.
1474                        'href="%s" type="application/rss+xml"/>'."\n",
1475                        esc_param($project), href(action=>"rss"));
1476         } else {
1477                 printf('<link rel="alternate" title="%s projects list" '.
1478                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1479                        $site_name, href(project=>undef, action=>"project_index"));
1480                 printf('<link rel="alternate" title="%s projects logs" '.
1481                        'href="%s" type="text/x-opml"/>'."\n",
1482                        $site_name, href(project=>undef, action=>"opml"));
1483         }
1484         if (defined $favicon) {
1485                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1486         }
1487
1488         print "</head>\n" .
1489               "<body>\n";
1490
1491         if (-f $site_header) {
1492                 open (my $fd, $site_header);
1493                 print <$fd>;
1494                 close $fd;
1495         }
1496
1497         print "<div class=\"page_header\">\n" .
1498               $cgi->a({-href => esc_url($logo_url),
1499                        -title => $logo_label},
1500                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1501         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1502         if (defined $project) {
1503                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1504                 if (defined $action) {
1505                         print " / $action";
1506                 }
1507                 print "\n";
1508                 if (!defined $searchtext) {
1509                         $searchtext = "";
1510                 }
1511                 my $search_hash;
1512                 if (defined $hash_base) {
1513                         $search_hash = $hash_base;
1514                 } elsif (defined $hash) {
1515                         $search_hash = $hash;
1516                 } else {
1517                         $search_hash = "HEAD";
1518                 }
1519                 $cgi->param("a", "search");
1520                 $cgi->param("h", $search_hash);
1521                 $cgi->param("p", $project);
1522                 print $cgi->startform(-method => "get", -action => $my_uri) .
1523                       "<div class=\"search\">\n" .
1524                       $cgi->hidden(-name => "p") . "\n" .
1525                       $cgi->hidden(-name => "a") . "\n" .
1526                       $cgi->hidden(-name => "h") . "\n" .
1527                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1528                       "</div>" .
1529                       $cgi->end_form() . "\n";
1530         }
1531         print "</div>\n";
1532 }
1533
1534 sub git_footer_html {
1535         print "<div class=\"page_footer\">\n";
1536         if (defined $project) {
1537                 my $descr = git_get_project_description($project);
1538                 if (defined $descr) {
1539                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1540                 }
1541                 print $cgi->a({-href => href(action=>"rss"),
1542                               -class => "rss_logo"}, "RSS") . "\n";
1543         } else {
1544                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1545                               -class => "rss_logo"}, "OPML") . " ";
1546                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1547                               -class => "rss_logo"}, "TXT") . "\n";
1548         }
1549         print "</div>\n" ;
1550
1551         if (-f $site_footer) {
1552                 open (my $fd, $site_footer);
1553                 print <$fd>;
1554                 close $fd;
1555         }
1556
1557         print "</body>\n" .
1558               "</html>";
1559 }
1560
1561 sub die_error {
1562         my $status = shift || "403 Forbidden";
1563         my $error = shift || "Malformed query, file missing or permission denied";
1564
1565         git_header_html($status);
1566         print <<EOF;
1567 <div class="page_body">
1568 <br /><br />
1569 $status - $error
1570 <br />
1571 </div>
1572 EOF
1573         git_footer_html();
1574         exit;
1575 }
1576
1577 ## ----------------------------------------------------------------------
1578 ## functions printing or outputting HTML: navigation
1579
1580 sub git_print_page_nav {
1581         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1582         $extra = '' if !defined $extra; # pager or formats
1583
1584         my @navs = qw(summary shortlog log commit commitdiff tree);
1585         if ($suppress) {
1586                 @navs = grep { $_ ne $suppress } @navs;
1587         }
1588
1589         my %arg = map { $_ => {action=>$_} } @navs;
1590         if (defined $head) {
1591                 for (qw(commit commitdiff)) {
1592                         $arg{$_}{hash} = $head;
1593                 }
1594                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1595                         for (qw(shortlog log)) {
1596                                 $arg{$_}{hash} = $head;
1597                         }
1598                 }
1599         }
1600         $arg{tree}{hash} = $treehead if defined $treehead;
1601         $arg{tree}{hash_base} = $treebase if defined $treebase;
1602
1603         print "<div class=\"page_nav\">\n" .
1604                 (join " | ",
1605                  map { $_ eq $current ?
1606                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1607                  } @navs);
1608         print "<br/>\n$extra<br/>\n" .
1609               "</div>\n";
1610 }
1611
1612 sub format_paging_nav {
1613         my ($action, $hash, $head, $page, $nrevs) = @_;
1614         my $paging_nav;
1615
1616
1617         if ($hash ne $head || $page) {
1618                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1619         } else {
1620                 $paging_nav .= "HEAD";
1621         }
1622
1623         if ($page > 0) {
1624                 $paging_nav .= " &sdot; " .
1625                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1626                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1627         } else {
1628                 $paging_nav .= " &sdot; prev";
1629         }
1630
1631         if ($nrevs >= (100 * ($page+1)-1)) {
1632                 $paging_nav .= " &sdot; " .
1633                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1634                                  -accesskey => "n", -title => "Alt-n"}, "next");
1635         } else {
1636                 $paging_nav .= " &sdot; next";
1637         }
1638
1639         return $paging_nav;
1640 }
1641
1642 ## ......................................................................
1643 ## functions printing or outputting HTML: div
1644
1645 sub git_print_header_div {
1646         my ($action, $title, $hash, $hash_base) = @_;
1647         my %args = ();
1648
1649         $args{action} = $action;
1650         $args{hash} = $hash if $hash;
1651         $args{hash_base} = $hash_base if $hash_base;
1652
1653         print "<div class=\"header\">\n" .
1654               $cgi->a({-href => href(%args), -class => "title"},
1655               $title ? $title : $action) .
1656               "\n</div>\n";
1657 }
1658
1659 #sub git_print_authorship (\%) {
1660 sub git_print_authorship {
1661         my $co = shift;
1662
1663         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1664         print "<div class=\"author_date\">" .
1665               esc_html($co->{'author_name'}) .
1666               " [$ad{'rfc2822'}";
1667         if ($ad{'hour_local'} < 6) {
1668                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1669                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1670         } else {
1671                 printf(" (%02d:%02d %s)",
1672                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1673         }
1674         print "]</div>\n";
1675 }
1676
1677 sub git_print_page_path {
1678         my $name = shift;
1679         my $type = shift;
1680         my $hb = shift;
1681
1682
1683         print "<div class=\"page_path\">";
1684         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1685                       -title => 'tree root'}, "[$project]");
1686         print " / ";
1687         if (defined $name) {
1688                 my @dirname = split '/', $name;
1689                 my $basename = pop @dirname;
1690                 my $fullname = '';
1691
1692                 foreach my $dir (@dirname) {
1693                         $fullname .= ($fullname ? '/' : '') . $dir;
1694                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1695                                                      hash_base=>$hb),
1696                                       -title => $fullname}, esc_html($dir));
1697                         print " / ";
1698                 }
1699                 if (defined $type && $type eq 'blob') {
1700                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1701                                                      hash_base=>$hb),
1702                                       -title => $name}, esc_html($basename));
1703                 } elsif (defined $type && $type eq 'tree') {
1704                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1705                                                      hash_base=>$hb),
1706                                       -title => $name}, esc_html($basename));
1707                         print " / ";
1708                 } else {
1709                         print esc_html($basename);
1710                 }
1711         }
1712         print "<br/></div>\n";
1713 }
1714
1715 # sub git_print_log (\@;%) {
1716 sub git_print_log ($;%) {
1717         my $log = shift;
1718         my %opts = @_;
1719
1720         if ($opts{'-remove_title'}) {
1721                 # remove title, i.e. first line of log
1722                 shift @$log;
1723         }
1724         # remove leading empty lines
1725         while (defined $log->[0] && $log->[0] eq "") {
1726                 shift @$log;
1727         }
1728
1729         # print log
1730         my $signoff = 0;
1731         my $empty = 0;
1732         foreach my $line (@$log) {
1733                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1734                         $signoff = 1;
1735                         $empty = 0;
1736                         if (! $opts{'-remove_signoff'}) {
1737                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1738                                 next;
1739                         } else {
1740                                 # remove signoff lines
1741                                 next;
1742                         }
1743                 } else {
1744                         $signoff = 0;
1745                 }
1746
1747                 # print only one empty line
1748                 # do not print empty line after signoff
1749                 if ($line eq "") {
1750                         next if ($empty || $signoff);
1751                         $empty = 1;
1752                 } else {
1753                         $empty = 0;
1754                 }
1755
1756                 print format_log_line_html($line) . "<br/>\n";
1757         }
1758
1759         if ($opts{'-final_empty_line'}) {
1760                 # end with single empty line
1761                 print "<br/>\n" unless $empty;
1762         }
1763 }
1764
1765 sub git_print_simplified_log {
1766         my $log = shift;
1767         my $remove_title = shift;
1768
1769         git_print_log($log,
1770                 -final_empty_line=> 1,
1771                 -remove_title => $remove_title);
1772 }
1773
1774 # print tree entry (row of git_tree), but without encompassing <tr> element
1775 sub git_print_tree_entry {
1776         my ($t, $basedir, $hash_base, $have_blame) = @_;
1777
1778         my %base_key = ();
1779         $base_key{hash_base} = $hash_base if defined $hash_base;
1780
1781         # The format of a table row is: mode list link.  Where mode is
1782         # the mode of the entry, list is the name of the entry, an href,
1783         # and link is the action links of the entry.
1784
1785         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1786         if ($t->{'type'} eq "blob") {
1787                 print "<td class=\"list\">" .
1788                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1789                                                file_name=>"$basedir$t->{'name'}", %base_key),
1790                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1791                 print "<td class=\"link\">";
1792                 if ($have_blame) {
1793                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1794                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1795                                             "blame");
1796                 }
1797                 if (defined $hash_base) {
1798                         if ($have_blame) {
1799                                 print " | ";
1800                         }
1801                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1802                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1803                                       "history");
1804                 }
1805                 print " | " .
1806                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1807                                                file_name=>"$basedir$t->{'name'}")},
1808                                 "raw");
1809                 print "</td>\n";
1810
1811         } elsif ($t->{'type'} eq "tree") {
1812                 print "<td class=\"list\">";
1813                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1814                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1815                               esc_html($t->{'name'}));
1816                 print "</td>\n";
1817                 print "<td class=\"link\">";
1818                 if (defined $hash_base) {
1819                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1820                                                      file_name=>"$basedir$t->{'name'}")},
1821                                       "history");
1822                 }
1823                 print "</td>\n";
1824         }
1825 }
1826
1827 ## ......................................................................
1828 ## functions printing large fragments of HTML
1829
1830 sub git_difftree_body {
1831         my ($difftree, $hash, $parent) = @_;
1832
1833         print "<div class=\"list_head\">\n";
1834         if ($#{$difftree} > 10) {
1835                 print(($#{$difftree} + 1) . " files changed:\n");
1836         }
1837         print "</div>\n";
1838
1839         print "<table class=\"diff_tree\">\n";
1840         my $alternate = 1;
1841         my $patchno = 0;
1842         foreach my $line (@{$difftree}) {
1843                 my %diff = parse_difftree_raw_line($line);
1844
1845                 if ($alternate) {
1846                         print "<tr class=\"dark\">\n";
1847                 } else {
1848                         print "<tr class=\"light\">\n";
1849                 }
1850                 $alternate ^= 1;
1851
1852                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1853                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1854                 if ($diff{'to_mode'} ne ('0' x 6)) {
1855                         $to_mode_oct = oct $diff{'to_mode'};
1856                         if (S_ISREG($to_mode_oct)) { # only for regular file
1857                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1858                         }
1859                         $to_file_type = file_type($diff{'to_mode'});
1860                 }
1861                 if ($diff{'from_mode'} ne ('0' x 6)) {
1862                         $from_mode_oct = oct $diff{'from_mode'};
1863                         if (S_ISREG($to_mode_oct)) { # only for regular file
1864                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1865                         }
1866                         $from_file_type = file_type($diff{'from_mode'});
1867                 }
1868
1869                 if ($diff{'status'} eq "A") { # created
1870                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1871                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1872                         $mode_chng   .= "]</span>";
1873                         print "<td>";
1874                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1875                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1876                                       -class => "list"}, esc_html($diff{'file'}));
1877                         print "</td>\n";
1878                         print "<td>$mode_chng</td>\n";
1879                         print "<td class=\"link\">";
1880                         if ($action eq 'commitdiff') {
1881                                 # link to patch
1882                                 $patchno++;
1883                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1884                         }
1885                         print "</td>\n";
1886
1887                 } elsif ($diff{'status'} eq "D") { # deleted
1888                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1889                         print "<td>";
1890                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1891                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1892                                        -class => "list"}, esc_html($diff{'file'}));
1893                         print "</td>\n";
1894                         print "<td>$mode_chng</td>\n";
1895                         print "<td class=\"link\">";
1896                         if ($action eq 'commitdiff') {
1897                                 # link to patch
1898                                 $patchno++;
1899                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1900                                 print " | ";
1901                         }
1902                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1903                                                      file_name=>$diff{'file'})},
1904                                       "blame") . " | ";
1905                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1906                                                      file_name=>$diff{'file'})},
1907                                       "history");
1908                         print "</td>\n";
1909
1910                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1911                         my $mode_chnge = "";
1912                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1913                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1914                                 if ($from_file_type != $to_file_type) {
1915                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1916                                 }
1917                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1918                                         if ($from_mode_str && $to_mode_str) {
1919                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1920                                         } elsif ($to_mode_str) {
1921                                                 $mode_chnge .= " mode: $to_mode_str";
1922                                         }
1923                                 }
1924                                 $mode_chnge .= "]</span>\n";
1925                         }
1926                         print "<td>";
1927                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1928                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1929                                       -class => "list"}, esc_html($diff{'file'}));
1930                         print "</td>\n";
1931                         print "<td>$mode_chnge</td>\n";
1932                         print "<td class=\"link\">";
1933                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1934                                 if ($action eq 'commitdiff') {
1935                                         # link to patch
1936                                         $patchno++;
1937                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1938                                 } else {
1939                                         print $cgi->a({-href => href(action=>"blobdiff",
1940                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1941                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1942                                                                      file_name=>$diff{'file'})},
1943                                                       "diff");
1944                                 }
1945                                 print " | ";
1946                         }
1947                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1948                                                      file_name=>$diff{'file'})},
1949                                       "blame") . " | ";
1950                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1951                                                      file_name=>$diff{'file'})},
1952                                       "history");
1953                         print "</td>\n";
1954
1955                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1956                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1957                         my $nstatus = $status_name{$diff{'status'}};
1958                         my $mode_chng = "";
1959                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1960                                 # mode also for directories, so we cannot use $to_mode_str
1961                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1962                         }
1963                         print "<td>" .
1964                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1965                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1966                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1967                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1968                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1969                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1970                                       -class => "list"}, esc_html($diff{'from_file'})) .
1971                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1972                               "<td class=\"link\">";
1973                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1974                                 if ($action eq 'commitdiff') {
1975                                         # link to patch
1976                                         $patchno++;
1977                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1978                                 } else {
1979                                         print $cgi->a({-href => href(action=>"blobdiff",
1980                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1981                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1982                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1983                                                       "diff");
1984                                 }
1985                                 print " | ";
1986                         }
1987                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1988                                                      file_name=>$diff{'from_file'})},
1989                                       "blame") . " | ";
1990                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1991                                                     file_name=>$diff{'from_file'})},
1992                                       "history");
1993                         print "</td>\n";
1994
1995                 } # we should not encounter Unmerged (U) or Unknown (X) status
1996                 print "</tr>\n";
1997         }
1998         print "</table>\n";
1999 }
2000
2001 sub git_patchset_body {
2002         my ($fd, $difftree, $hash, $hash_parent) = @_;
2003
2004         my $patch_idx = 0;
2005         my $in_header = 0;
2006         my $patch_found = 0;
2007         my $diffinfo;
2008
2009         print "<div class=\"patchset\">\n";
2010
2011         LINE:
2012         while (my $patch_line = <$fd>) {
2013                 chomp $patch_line;
2014
2015                 if ($patch_line =~ m/^diff /) { # "git diff" header
2016                         # beginning of patch (in patchset)
2017                         if ($patch_found) {
2018                                 # close previous patch
2019                                 print "</div>\n"; # class="patch"
2020                         } else {
2021                                 # first patch in patchset
2022                                 $patch_found = 1;
2023                         }
2024                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2025
2026                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2027                                 $diffinfo = $difftree->[$patch_idx];
2028                         } else {
2029                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2030                         }
2031                         $patch_idx++;
2032
2033                         # for now, no extended header, hence we skip empty patches
2034                         # companion to  next LINE if $in_header;
2035                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
2036                                 $in_header = 1;
2037                                 next LINE;
2038                         }
2039
2040                         if ($diffinfo->{'status'} eq "A") { # added
2041                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2042                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2043                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2044                                               $diffinfo->{'to_id'}) . " (new)" .
2045                                       "</div>\n"; # class="diff_info"
2046
2047                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2048                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2049                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2050                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2051                                               $diffinfo->{'from_id'}) . " (deleted)" .
2052                                       "</div>\n"; # class="diff_info"
2053
2054                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2055                                  $diffinfo->{'status'} eq "C" || # copied
2056                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2057                                 print "<div class=\"diff_info\">" .
2058                                       file_type($diffinfo->{'from_mode'}) . ":" .
2059                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2060                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2061                                               $diffinfo->{'from_id'}) .
2062                                       " -> " .
2063                                       file_type($diffinfo->{'to_mode'}) . ":" .
2064                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2065                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2066                                               $diffinfo->{'to_id'});
2067                                 print "</div>\n"; # class="diff_info"
2068
2069                         } else { # modified, mode changed, ...
2070                                 print "<div class=\"diff_info\">" .
2071                                       file_type($diffinfo->{'from_mode'}) . ":" .
2072                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2073                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2074                                               $diffinfo->{'from_id'}) .
2075                                       " -> " .
2076                                       file_type($diffinfo->{'to_mode'}) . ":" .
2077                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2078                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2079                                               $diffinfo->{'to_id'});
2080                                 print "</div>\n"; # class="diff_info"
2081                         }
2082
2083                         #print "<div class=\"diff extended_header\">\n";
2084                         $in_header = 1;
2085                         next LINE;
2086                 } # start of patch in patchset
2087
2088
2089                 if ($in_header && $patch_line =~ m/^---/) {
2090                         #print "</div>\n"; # class="diff extended_header"
2091                         $in_header = 0;
2092
2093                         my $file = $diffinfo->{'from_file'};
2094                         $file  ||= $diffinfo->{'file'};
2095                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2096                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2097                                         -class => "list"}, esc_html($file));
2098                         $patch_line =~ s|a/.*$|a/$file|g;
2099                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2100
2101                         $patch_line = <$fd>;
2102                         chomp $patch_line;
2103
2104                         #$patch_line =~ m/^+++/;
2105                         $file    = $diffinfo->{'to_file'};
2106                         $file  ||= $diffinfo->{'file'};
2107                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2108                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2109                                         -class => "list"}, esc_html($file));
2110                         $patch_line =~ s|b/.*|b/$file|g;
2111                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2112
2113                         next LINE;
2114                 }
2115                 next LINE if $in_header;
2116
2117                 print format_diff_line($patch_line);
2118         }
2119         print "</div>\n" if $patch_found; # class="patch"
2120
2121         print "</div>\n"; # class="patchset"
2122 }
2123
2124 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2125
2126 sub git_shortlog_body {
2127         # uses global variable $project
2128         my ($revlist, $from, $to, $refs, $extra) = @_;
2129
2130         $from = 0 unless defined $from;
2131         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2132
2133         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2134         my $alternate = 1;
2135         for (my $i = $from; $i <= $to; $i++) {
2136                 my $commit = $revlist->[$i];
2137                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2138                 my $ref = format_ref_marker($refs, $commit);
2139                 my %co = parse_commit($commit);
2140                 if ($alternate) {
2141                         print "<tr class=\"dark\">\n";
2142                 } else {
2143                         print "<tr class=\"light\">\n";
2144                 }
2145                 $alternate ^= 1;
2146                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2147                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2148                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2149                       "<td>";
2150                 print format_subject_html($co{'title'}, $co{'title_short'},
2151                                           href(action=>"commit", hash=>$commit), $ref);
2152                 print "</td>\n" .
2153                       "<td class=\"link\">" .
2154                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2155                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2156                 if (gitweb_have_snapshot()) {
2157                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2158                 }
2159                 print "</td>\n" .
2160                       "</tr>\n";
2161         }
2162         if (defined $extra) {
2163                 print "<tr>\n" .
2164                       "<td colspan=\"4\">$extra</td>\n" .
2165                       "</tr>\n";
2166         }
2167         print "</table>\n";
2168 }
2169
2170 sub git_history_body {
2171         # Warning: assumes constant type (blob or tree) during history
2172         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2173
2174         $from = 0 unless defined $from;
2175         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2176
2177         print "<table class=\"history\" cellspacing=\"0\">\n";
2178         my $alternate = 1;
2179         for (my $i = $from; $i <= $to; $i++) {
2180                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2181                         next;
2182                 }
2183
2184                 my $commit = $1;
2185                 my %co = parse_commit($commit);
2186                 if (!%co) {
2187                         next;
2188                 }
2189
2190                 my $ref = format_ref_marker($refs, $commit);
2191
2192                 if ($alternate) {
2193                         print "<tr class=\"dark\">\n";
2194                 } else {
2195                         print "<tr class=\"light\">\n";
2196                 }
2197                 $alternate ^= 1;
2198                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2199                       # shortlog uses      chop_str($co{'author_name'}, 10)
2200                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2201                       "<td>";
2202                 # originally git_history used chop_str($co{'title'}, 50)
2203                 print format_subject_html($co{'title'}, $co{'title_short'},
2204                                           href(action=>"commit", hash=>$commit), $ref);
2205                 print "</td>\n" .
2206                       "<td class=\"link\">" .
2207                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2208                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2209
2210                 if ($ftype eq 'blob') {
2211                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2212                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2213                         if (defined $blob_current && defined $blob_parent &&
2214                                         $blob_current ne $blob_parent) {
2215                                 print " | " .
2216                                         $cgi->a({-href => href(action=>"blobdiff",
2217                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2218                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2219                                                                file_name=>$file_name)},
2220                                                 "diff to current");
2221                         }
2222                 }
2223                 print "</td>\n" .
2224                       "</tr>\n";
2225         }
2226         if (defined $extra) {
2227                 print "<tr>\n" .
2228                       "<td colspan=\"4\">$extra</td>\n" .
2229                       "</tr>\n";
2230         }
2231         print "</table>\n";
2232 }
2233
2234 sub git_tags_body {
2235         # uses global variable $project
2236         my ($taglist, $from, $to, $extra) = @_;
2237         $from = 0 unless defined $from;
2238         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2239
2240         print "<table class=\"tags\" cellspacing=\"0\">\n";
2241         my $alternate = 1;
2242         for (my $i = $from; $i <= $to; $i++) {
2243                 my $entry = $taglist->[$i];
2244                 my %tag = %$entry;
2245                 my $comment_lines = $tag{'comment'};
2246                 my $comment = shift @$comment_lines;
2247                 my $comment_short;
2248                 if (defined $comment) {
2249                         $comment_short = chop_str($comment, 30, 5);
2250                 }
2251                 if ($alternate) {
2252                         print "<tr class=\"dark\">\n";
2253                 } else {
2254                         print "<tr class=\"light\">\n";
2255                 }
2256                 $alternate ^= 1;
2257                 print "<td><i>$tag{'age'}</i></td>\n" .
2258                       "<td>" .
2259                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2260                                -class => "list name"}, esc_html($tag{'name'})) .
2261                       "</td>\n" .
2262                       "<td>";
2263                 if (defined $comment) {
2264                         print format_subject_html($comment, $comment_short,
2265                                                   href(action=>"tag", hash=>$tag{'id'}));
2266                 }
2267                 print "</td>\n" .
2268                       "<td class=\"selflink\">";
2269                 if ($tag{'type'} eq "tag") {
2270                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2271                 } else {
2272                         print "&nbsp;";
2273                 }
2274                 print "</td>\n" .
2275                       "<td class=\"link\">" . " | " .
2276                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2277                 if ($tag{'reftype'} eq "commit") {
2278                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2279                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2280                 } elsif ($tag{'reftype'} eq "blob") {
2281                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2282                 }
2283                 print "</td>\n" .
2284                       "</tr>";
2285         }
2286         if (defined $extra) {
2287                 print "<tr>\n" .
2288                       "<td colspan=\"5\">$extra</td>\n" .
2289                       "</tr>\n";
2290         }
2291         print "</table>\n";
2292 }
2293
2294 sub git_heads_body {
2295         # uses global variable $project
2296         my ($headlist, $head, $from, $to, $extra) = @_;
2297         $from = 0 unless defined $from;
2298         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2299
2300         print "<table class=\"heads\" cellspacing=\"0\">\n";
2301         my $alternate = 1;
2302         for (my $i = $from; $i <= $to; $i++) {
2303                 my $entry = $headlist->[$i];
2304                 my %tag = %$entry;
2305                 my $curr = $tag{'id'} eq $head;
2306                 if ($alternate) {
2307                         print "<tr class=\"dark\">\n";
2308                 } else {
2309                         print "<tr class=\"light\">\n";
2310                 }
2311                 $alternate ^= 1;
2312                 print "<td><i>$tag{'age'}</i></td>\n" .
2313                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2314                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2315                                -class => "list name"},esc_html($tag{'name'})) .
2316                       "</td>\n" .
2317                       "<td class=\"link\">" .
2318                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2319                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2320                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2321                       "</td>\n" .
2322                       "</tr>";
2323         }
2324         if (defined $extra) {
2325                 print "<tr>\n" .
2326                       "<td colspan=\"3\">$extra</td>\n" .
2327                       "</tr>\n";
2328         }
2329         print "</table>\n";
2330 }
2331
2332 ## ======================================================================
2333 ## ======================================================================
2334 ## actions
2335
2336 sub git_project_list {
2337         my $order = $cgi->param('o');
2338         if (defined $order && $order !~ m/project|descr|owner|age/) {
2339                 die_error(undef, "Unknown order parameter");
2340         }
2341
2342         my @list = git_get_projects_list();
2343         my @projects;
2344         if (!@list) {
2345                 die_error(undef, "No projects found");
2346         }
2347         foreach my $pr (@list) {
2348                 my (@aa) = git_get_last_activity($pr->{'path'});
2349                 unless (@aa) {
2350                         next;
2351                 }
2352                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2353                 if (!defined $pr->{'descr'}) {
2354                         my $descr = git_get_project_description($pr->{'path'}) || "";
2355                         $pr->{'descr'} = chop_str($descr, 25, 5);
2356                 }
2357                 if (!defined $pr->{'owner'}) {
2358                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2359                 }
2360                 push @projects, $pr;
2361         }
2362
2363         git_header_html();
2364         if (-f $home_text) {
2365                 print "<div class=\"index_include\">\n";
2366                 open (my $fd, $home_text);
2367                 print <$fd>;
2368                 close $fd;
2369                 print "</div>\n";
2370         }
2371         print "<table class=\"project_list\">\n" .
2372               "<tr>\n";
2373         $order ||= "project";
2374         if ($order eq "project") {
2375                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2376                 print "<th>Project</th>\n";
2377         } else {
2378                 print "<th>" .
2379                       $cgi->a({-href => href(project=>undef, order=>'project'),
2380                                -class => "header"}, "Project") .
2381                       "</th>\n";
2382         }
2383         if ($order eq "descr") {
2384                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2385                 print "<th>Description</th>\n";
2386         } else {
2387                 print "<th>" .
2388                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2389                                -class => "header"}, "Description") .
2390                       "</th>\n";
2391         }
2392         if ($order eq "owner") {
2393                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2394                 print "<th>Owner</th>\n";
2395         } else {
2396                 print "<th>" .
2397                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2398                                -class => "header"}, "Owner") .
2399                       "</th>\n";
2400         }
2401         if ($order eq "age") {
2402                 @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2403                 print "<th>Last Change</th>\n";
2404         } else {
2405                 print "<th>" .
2406                       $cgi->a({-href => href(project=>undef, order=>'age'),
2407                                -class => "header"}, "Last Change") .
2408                       "</th>\n";
2409         }
2410         print "<th></th>\n" .
2411               "</tr>\n";
2412         my $alternate = 1;
2413         foreach my $pr (@projects) {
2414                 if ($alternate) {
2415                         print "<tr class=\"dark\">\n";
2416                 } else {
2417                         print "<tr class=\"light\">\n";
2418                 }
2419                 $alternate ^= 1;
2420                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2421                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2422                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2423                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2424                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2425                       $pr->{'age_string'} . "</td>\n" .
2426                       "<td class=\"link\">" .
2427                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2428                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2429                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2430                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2431                       "</td>\n" .
2432                       "</tr>\n";
2433         }
2434         print "</table>\n";
2435         git_footer_html();
2436 }
2437
2438 sub git_project_index {
2439         my @projects = git_get_projects_list();
2440
2441         print $cgi->header(
2442                 -type => 'text/plain',
2443                 -charset => 'utf-8',
2444                 -content_disposition => 'inline; filename="index.aux"');
2445
2446         foreach my $pr (@projects) {
2447                 if (!exists $pr->{'owner'}) {
2448                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2449                 }
2450
2451                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2452                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2453                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2454                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2455                 $path  =~ s/ /\+/g;
2456                 $owner =~ s/ /\+/g;
2457
2458                 print "$path $owner\n";
2459         }
2460 }
2461
2462 sub git_summary {
2463         my $descr = git_get_project_description($project) || "none";
2464         my $head = git_get_head_hash($project);
2465         my %co = parse_commit($head);
2466         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2467
2468         my $owner = git_get_project_owner($project);
2469
2470         my ($reflist, $refs) = git_get_refs_list();
2471
2472         my @taglist;
2473         my @headlist;
2474         foreach my $ref (@$reflist) {
2475                 if ($ref->{'name'} =~ s!^heads/!!) {
2476                         push @headlist, $ref;
2477                 } else {
2478                         $ref->{'name'} =~ s!^tags/!!;
2479                         push @taglist, $ref;
2480                 }
2481         }
2482
2483         git_header_html();
2484         git_print_page_nav('summary','', $head);
2485
2486         print "<div class=\"title\">&nbsp;</div>\n";
2487         print "<table cellspacing=\"0\">\n" .
2488               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2489               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2490               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2491         # use per project git URL list in $projectroot/$project/cloneurl
2492         # or make project git URL from git base URL and project name
2493         my $url_tag = "URL";
2494         my @url_list = git_get_project_url_list($project);
2495         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2496         foreach my $git_url (@url_list) {
2497                 next unless $git_url;
2498                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2499                 $url_tag = "";
2500         }
2501         print "</table>\n";
2502
2503         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2504                 git_get_head_hash($project)
2505                 or die_error(undef, "Open git-rev-list failed");
2506         my @revlist = map { chomp; $_ } <$fd>;
2507         close $fd;
2508         git_print_header_div('shortlog');
2509         git_shortlog_body(\@revlist, 0, 15, $refs,
2510                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2511
2512         if (@taglist) {
2513                 git_print_header_div('tags');
2514                 git_tags_body(\@taglist, 0, 15,
2515                               $cgi->a({-href => href(action=>"tags")}, "..."));
2516         }
2517
2518         if (@headlist) {
2519                 git_print_header_div('heads');
2520                 git_heads_body(\@headlist, $head, 0, 15,
2521                                $cgi->a({-href => href(action=>"heads")}, "..."));
2522         }
2523
2524         git_footer_html();
2525 }
2526
2527 sub git_tag {
2528         my $head = git_get_head_hash($project);
2529         git_header_html();
2530         git_print_page_nav('','', $head,undef,$head);
2531         my %tag = parse_tag($hash);
2532         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2533         print "<div class=\"title_text\">\n" .
2534               "<table cellspacing=\"0\">\n" .
2535               "<tr>\n" .
2536               "<td>object</td>\n" .
2537               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2538                                $tag{'object'}) . "</td>\n" .
2539               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2540                                               $tag{'type'}) . "</td>\n" .
2541               "</tr>\n";
2542         if (defined($tag{'author'})) {
2543                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2544                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2545                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2546                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2547                         "</td></tr>\n";
2548         }
2549         print "</table>\n\n" .
2550               "</div>\n";
2551         print "<div class=\"page_body\">";
2552         my $comment = $tag{'comment'};
2553         foreach my $line (@$comment) {
2554                 print esc_html($line) . "<br/>\n";
2555         }
2556         print "</div>\n";
2557         git_footer_html();
2558 }
2559
2560 sub git_blame2 {
2561         my $fd;
2562         my $ftype;
2563
2564         my ($have_blame) = gitweb_check_feature('blame');
2565         if (!$have_blame) {
2566                 die_error('403 Permission denied', "Permission denied");
2567         }
2568         die_error('404 Not Found', "File name not defined") if (!$file_name);
2569         $hash_base ||= git_get_head_hash($project);
2570         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2571         my %co = parse_commit($hash_base)
2572                 or die_error(undef, "Reading commit failed");
2573         if (!defined $hash) {
2574                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2575                         or die_error(undef, "Error looking up file");
2576         }
2577         $ftype = git_get_type($hash);
2578         if ($ftype !~ "blob") {
2579                 die_error("400 Bad Request", "Object is not a blob");
2580         }
2581         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2582                 or die_error(undef, "Open git-blame failed");
2583         git_header_html();
2584         my $formats_nav =
2585                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2586                         "blob") .
2587                 " | " .
2588                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2589                         "history") .
2590                 " | " .
2591                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2592                         "HEAD");
2593         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2594         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2595         git_print_page_path($file_name, $ftype, $hash_base);
2596         my @rev_color = (qw(light2 dark2));
2597         my $num_colors = scalar(@rev_color);
2598         my $current_color = 0;
2599         my $last_rev;
2600         print <<HTML;
2601 <div class="page_body">
2602 <table class="blame">
2603 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2604 HTML
2605         while (<$fd>) {
2606                 my ($full_rev, $author, $date, $lineno, $data) =
2607                         /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2608                 my $rev = substr($full_rev, 0, 8);
2609                 my $print_c8 = 0;
2610
2611                 if (!defined $last_rev) {
2612                         $last_rev = $full_rev;
2613                         $print_c8 = 1;
2614                 } elsif ($last_rev ne $full_rev) {
2615                         $last_rev = $full_rev;
2616                         $current_color = ++$current_color % $num_colors;
2617                         $print_c8 = 1;
2618                 }
2619                 print "<tr class=\"$rev_color[$current_color]\">\n";
2620                 print "<td class=\"sha1\"";
2621                 if ($print_c8 == 1) {
2622                         print " title=\"$author, $date\"";
2623                 }
2624                 print ">";
2625                 if ($print_c8 == 1) {
2626                         print $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2627                                       esc_html($rev));
2628                 }
2629                 print "</td>\n";
2630                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2631                       esc_html($lineno) . "</a></td>\n";
2632                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2633                 print "</tr>\n";
2634         }
2635         print "</table>\n";
2636         print "</div>";
2637         close $fd
2638                 or print "Reading blob failed\n";
2639         git_footer_html();
2640 }
2641
2642 sub git_blame {
2643         my $fd;
2644
2645         my ($have_blame) = gitweb_check_feature('blame');
2646         if (!$have_blame) {
2647                 die_error('403 Permission denied', "Permission denied");
2648         }
2649         die_error('404 Not Found', "File name not defined") if (!$file_name);
2650         $hash_base ||= git_get_head_hash($project);
2651         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2652         my %co = parse_commit($hash_base)
2653                 or die_error(undef, "Reading commit failed");
2654         if (!defined $hash) {
2655                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2656                         or die_error(undef, "Error lookup file");
2657         }
2658         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2659                 or die_error(undef, "Open git-annotate failed");
2660         git_header_html();
2661         my $formats_nav =
2662                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2663                         "blob") .
2664                 " | " .
2665                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2666                         "history") .
2667                 " | " .
2668                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2669                         "HEAD");
2670         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2671         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2672         git_print_page_path($file_name, 'blob', $hash_base);
2673         print "<div class=\"page_body\">\n";
2674         print <<HTML;
2675 <table class="blame">
2676   <tr>
2677     <th>Commit</th>
2678     <th>Age</th>
2679     <th>Author</th>
2680     <th>Line</th>
2681     <th>Data</th>
2682   </tr>
2683 HTML
2684         my @line_class = (qw(light dark));
2685         my $line_class_len = scalar (@line_class);
2686         my $line_class_num = $#line_class;
2687         while (my $line = <$fd>) {
2688                 my $long_rev;
2689                 my $short_rev;
2690                 my $author;
2691                 my $time;
2692                 my $lineno;
2693                 my $data;
2694                 my $age;
2695                 my $age_str;
2696                 my $age_class;
2697
2698                 chomp $line;
2699                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2700
2701                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2702                         $long_rev = $1;
2703                         $author   = $2;
2704                         $time     = $3;
2705                         $lineno   = $4;
2706                         $data     = $5;
2707                 } else {
2708                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2709                         next;
2710                 }
2711                 $short_rev  = substr ($long_rev, 0, 8);
2712                 $age        = time () - $time;
2713                 $age_str    = age_string ($age);
2714                 $age_str    =~ s/ /&nbsp;/g;
2715                 $age_class  = age_class($age);
2716                 $author     = esc_html ($author);
2717                 $author     =~ s/ /&nbsp;/g;
2718
2719                 $data = untabify($data);
2720                 $data = esc_html ($data);
2721
2722                 print <<HTML;
2723   <tr class="$line_class[$line_class_num]">
2724     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2725     <td class="$age_class">$age_str</td>
2726     <td>$author</td>
2727     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2728     <td class="pre">$data</td>
2729   </tr>
2730 HTML
2731         } # while (my $line = <$fd>)
2732         print "</table>\n\n";
2733         close $fd
2734                 or print "Reading blob failed.\n";
2735         print "</div>";
2736         git_footer_html();
2737 }
2738
2739 sub git_tags {
2740         my $head = git_get_head_hash($project);
2741         git_header_html();
2742         git_print_page_nav('','', $head,undef,$head);
2743         git_print_header_div('summary', $project);
2744
2745         my ($taglist) = git_get_refs_list("tags");
2746         if (@$taglist) {
2747                 git_tags_body($taglist);
2748         }
2749         git_footer_html();
2750 }
2751
2752 sub git_heads {
2753         my $head = git_get_head_hash($project);
2754         git_header_html();
2755         git_print_page_nav('','', $head,undef,$head);
2756         git_print_header_div('summary', $project);
2757
2758         my ($headlist) = git_get_refs_list("heads");
2759         if (@$headlist) {
2760                 git_heads_body($headlist, $head);
2761         }
2762         git_footer_html();
2763 }
2764
2765 sub git_blob_plain {
2766         my $expires;
2767
2768         if (!defined $hash) {
2769                 if (defined $file_name) {
2770                         my $base = $hash_base || git_get_head_hash($project);
2771                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2772                                 or die_error(undef, "Error lookup file");
2773                 } else {
2774                         die_error(undef, "No file name defined");
2775                 }
2776         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2777                 # blobs defined by non-textual hash id's can be cached
2778                 $expires = "+1d";
2779         }
2780
2781         my $type = shift;
2782         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2783                 or die_error(undef, "Couldn't cat $file_name, $hash");
2784
2785         $type ||= blob_mimetype($fd, $file_name);
2786
2787         # save as filename, even when no $file_name is given
2788         my $save_as = "$hash";
2789         if (defined $file_name) {
2790                 $save_as = $file_name;
2791         } elsif ($type =~ m/^text\//) {
2792                 $save_as .= '.txt';
2793         }
2794
2795         print $cgi->header(
2796                 -type => "$type",
2797                 -expires=>$expires,
2798                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2799         undef $/;
2800         binmode STDOUT, ':raw';
2801         print <$fd>;
2802         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2803         $/ = "\n";
2804         close $fd;
2805 }
2806
2807 sub git_blob {
2808         my $expires;
2809
2810         if (!defined $hash) {
2811                 if (defined $file_name) {
2812                         my $base = $hash_base || git_get_head_hash($project);
2813                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2814                                 or die_error(undef, "Error lookup file");
2815                 } else {
2816                         die_error(undef, "No file name defined");
2817                 }
2818         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2819                 # blobs defined by non-textual hash id's can be cached
2820                 $expires = "+1d";
2821         }
2822
2823         my ($have_blame) = gitweb_check_feature('blame');
2824         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2825                 or die_error(undef, "Couldn't cat $file_name, $hash");
2826         my $mimetype = blob_mimetype($fd, $file_name);
2827         if ($mimetype !~ m/^text\//) {
2828                 close $fd;
2829                 return git_blob_plain($mimetype);
2830         }
2831         git_header_html(undef, $expires);
2832         my $formats_nav = '';
2833         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2834                 if (defined $file_name) {
2835                         if ($have_blame) {
2836                                 $formats_nav .=
2837                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2838                                                                hash=>$hash, file_name=>$file_name)},
2839                                                 "blame") .
2840                                         " | ";
2841                         }
2842                         $formats_nav .=
2843                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2844                                                        hash=>$hash, file_name=>$file_name)},
2845                                         "history") .
2846                                 " | " .
2847                                 $cgi->a({-href => href(action=>"blob_plain",
2848                                                        hash=>$hash, file_name=>$file_name)},
2849                                         "raw") .
2850                                 " | " .
2851                                 $cgi->a({-href => href(action=>"blob",
2852                                                        hash_base=>"HEAD", file_name=>$file_name)},
2853                                         "HEAD");
2854                 } else {
2855                         $formats_nav .=
2856                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2857                 }
2858                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2859                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2860         } else {
2861                 print "<div class=\"page_nav\">\n" .
2862                       "<br/><br/></div>\n" .
2863                       "<div class=\"title\">$hash</div>\n";
2864         }
2865         git_print_page_path($file_name, "blob", $hash_base);
2866         print "<div class=\"page_body\">\n";
2867         my $nr;
2868         while (my $line = <$fd>) {
2869                 chomp $line;
2870                 $nr++;
2871                 $line = untabify($line);
2872                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2873                        $nr, $nr, $nr, esc_html($line);
2874         }
2875         close $fd
2876                 or print "Reading blob failed.\n";
2877         print "</div>";
2878         git_footer_html();
2879 }
2880
2881 sub git_tree {
2882         my $have_snapshot = gitweb_have_snapshot();
2883
2884         if (!defined $hash_base) {
2885                 $hash_base = "HEAD";
2886         }
2887         if (!defined $hash) {
2888                 if (defined $file_name) {
2889                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2890                 } else {
2891                         $hash = $hash_base;
2892                 }
2893         }
2894         $/ = "\0";
2895         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2896                 or die_error(undef, "Open git-ls-tree failed");
2897         my @entries = map { chomp; $_ } <$fd>;
2898         close $fd or die_error(undef, "Reading tree failed");
2899         $/ = "\n";
2900
2901         my $refs = git_get_references();
2902         my $ref = format_ref_marker($refs, $hash_base);
2903         git_header_html();
2904         my $basedir = '';
2905         my ($have_blame) = gitweb_check_feature('blame');
2906         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2907                 my @views_nav = ();
2908                 if (defined $file_name) {
2909                         push @views_nav,
2910                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2911                                                        hash=>$hash, file_name=>$file_name)},
2912                                         "history"),
2913                                 $cgi->a({-href => href(action=>"tree",
2914                                                        hash_base=>"HEAD", file_name=>$file_name)},
2915                                         "HEAD"),
2916                 }
2917                 if ($have_snapshot) {
2918                         # FIXME: Should be available when we have no hash base as well.
2919                         push @views_nav,
2920                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2921                                         "snapshot");
2922                 }
2923                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2924                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2925         } else {
2926                 undef $hash_base;
2927                 print "<div class=\"page_nav\">\n";
2928                 print "<br/><br/></div>\n";
2929                 print "<div class=\"title\">$hash</div>\n";
2930         }
2931         if (defined $file_name) {
2932                 $basedir = $file_name;
2933                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
2934                         $basedir .= '/';
2935                 }
2936         }
2937         git_print_page_path($file_name, 'tree', $hash_base);
2938         print "<div class=\"page_body\">\n";
2939         print "<table cellspacing=\"0\">\n";
2940         my $alternate = 1;
2941         # '..' (top directory) link if possible
2942         if (defined $hash_base &&
2943             defined $file_name && $file_name =~ m![^/]+$!) {
2944                 if ($alternate) {
2945                         print "<tr class=\"dark\">\n";
2946                 } else {
2947                         print "<tr class=\"light\">\n";
2948                 }
2949                 $alternate ^= 1;
2950
2951                 my $up = $file_name;
2952                 $up =~ s!/?[^/]+$!!;
2953                 undef $up unless $up;
2954                 # based on git_print_tree_entry
2955                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
2956                 print '<td class="list">';
2957                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
2958                                              file_name=>$up)},
2959                               "..");
2960                 print "</td>\n";
2961                 print "<td class=\"link\"></td>\n";
2962
2963                 print "</tr>\n";
2964         }
2965         foreach my $line (@entries) {
2966                 my %t = parse_ls_tree_line($line, -z => 1);
2967
2968                 if ($alternate) {
2969                         print "<tr class=\"dark\">\n";
2970                 } else {
2971                         print "<tr class=\"light\">\n";
2972                 }
2973                 $alternate ^= 1;
2974
2975                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
2976
2977                 print "</tr>\n";
2978         }
2979         print "</table>\n" .
2980               "</div>";
2981         git_footer_html();
2982 }
2983
2984 sub git_snapshot {
2985         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2986         my $have_snapshot = (defined $ctype && defined $suffix);
2987         if (!$have_snapshot) {
2988                 die_error('403 Permission denied', "Permission denied");
2989         }
2990
2991         if (!defined $hash) {
2992                 $hash = git_get_head_hash($project);
2993         }
2994
2995         my $filename = basename($project) . "-$hash.tar.$suffix";
2996
2997         print $cgi->header(
2998                 -type => 'application/x-tar',
2999                 -content_encoding => $ctype,
3000                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3001                 -status => '200 OK');
3002
3003         my $git = git_cmd_str();
3004         my $name = $project;
3005         $name =~ s/\047/\047\\\047\047/g;
3006         open my $fd, "-|",
3007         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3008                 or die_error(undef, "Execute git-tar-tree failed.");
3009         binmode STDOUT, ':raw';
3010         print <$fd>;
3011         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3012         close $fd;
3013
3014 }
3015
3016 sub git_log {
3017         my $head = git_get_head_hash($project);
3018         if (!defined $hash) {
3019                 $hash = $head;
3020         }
3021         if (!defined $page) {
3022                 $page = 0;
3023         }
3024         my $refs = git_get_references();
3025
3026         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3027         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3028                 or die_error(undef, "Open git-rev-list failed");
3029         my @revlist = map { chomp; $_ } <$fd>;
3030         close $fd;
3031
3032         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3033
3034         git_header_html();
3035         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3036
3037         if (!@revlist) {
3038                 my %co = parse_commit($hash);
3039
3040                 git_print_header_div('summary', $project);
3041                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3042         }
3043         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3044                 my $commit = $revlist[$i];
3045                 my $ref = format_ref_marker($refs, $commit);
3046                 my %co = parse_commit($commit);
3047                 next if !%co;
3048                 my %ad = parse_date($co{'author_epoch'});
3049                 git_print_header_div('commit',
3050                                "<span class=\"age\">$co{'age_string'}</span>" .
3051                                esc_html($co{'title'}) . $ref,
3052                                $commit);
3053                 print "<div class=\"title_text\">\n" .
3054                       "<div class=\"log_link\">\n" .
3055                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3056                       " | " .
3057                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3058                       " | " .
3059                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3060                       "<br/>\n" .
3061                       "</div>\n" .
3062                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3063                       "</div>\n";
3064
3065                 print "<div class=\"log_body\">\n";
3066                 git_print_simplified_log($co{'comment'});
3067                 print "</div>\n";
3068         }
3069         git_footer_html();
3070 }
3071
3072 sub git_commit {
3073         my %co = parse_commit($hash);
3074         if (!%co) {
3075                 die_error(undef, "Unknown commit object");
3076         }
3077         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3078         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3079
3080         my $parent = $co{'parent'};
3081         if (!defined $parent) {
3082                 $parent = "--root";
3083         }
3084         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3085                 or die_error(undef, "Open git-diff-tree failed");
3086         my @difftree = map { chomp; $_ } <$fd>;
3087         close $fd or die_error(undef, "Reading git-diff-tree failed");
3088
3089         # non-textual hash id's can be cached
3090         my $expires;
3091         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3092                 $expires = "+1d";
3093         }
3094         my $refs = git_get_references();
3095         my $ref = format_ref_marker($refs, $co{'id'});
3096
3097         my $have_snapshot = gitweb_have_snapshot();
3098
3099         my @views_nav = ();
3100         if (defined $file_name && defined $co{'parent'}) {
3101                 push @views_nav,
3102                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3103                                 "blame");
3104         }
3105         git_header_html(undef, $expires);
3106         git_print_page_nav('commit', '',
3107                            $hash, $co{'tree'}, $hash,
3108                            join (' | ', @views_nav));
3109
3110         if (defined $co{'parent'}) {
3111                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3112         } else {
3113                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3114         }
3115         print "<div class=\"title_text\">\n" .
3116               "<table cellspacing=\"0\">\n";
3117         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3118               "<tr>" .
3119               "<td></td><td> $ad{'rfc2822'}";
3120         if ($ad{'hour_local'} < 6) {
3121                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3122                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3123         } else {
3124                 printf(" (%02d:%02d %s)",
3125                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3126         }
3127         print "</td>" .
3128               "</tr>\n";
3129         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3130         print "<tr><td></td><td> $cd{'rfc2822'}" .
3131               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3132               "</td></tr>\n";
3133         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3134         print "<tr>" .
3135               "<td>tree</td>" .
3136               "<td class=\"sha1\">" .
3137               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3138                        class => "list"}, $co{'tree'}) .
3139               "</td>" .
3140               "<td class=\"link\">" .
3141               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3142                       "tree");
3143         if ($have_snapshot) {
3144                 print " | " .
3145                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3146         }
3147         print "</td>" .
3148               "</tr>\n";
3149         my $parents = $co{'parents'};
3150         foreach my $par (@$parents) {
3151                 print "<tr>" .
3152                       "<td>parent</td>" .
3153                       "<td class=\"sha1\">" .
3154                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3155                                class => "list"}, $par) .
3156                       "</td>" .
3157                       "<td class=\"link\">" .
3158                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3159                       " | " .
3160                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3161                       "</td>" .
3162                       "</tr>\n";
3163         }
3164         print "</table>".
3165               "</div>\n";
3166
3167         print "<div class=\"page_body\">\n";
3168         git_print_log($co{'comment'});
3169         print "</div>\n";
3170
3171         git_difftree_body(\@difftree, $hash, $parent);
3172
3173         git_footer_html();
3174 }
3175
3176 sub git_blobdiff {
3177         my $format = shift || 'html';
3178
3179         my $fd;
3180         my @difftree;
3181         my %diffinfo;
3182         my $expires;
3183
3184         # preparing $fd and %diffinfo for git_patchset_body
3185         # new style URI
3186         if (defined $hash_base && defined $hash_parent_base) {
3187                 if (defined $file_name) {
3188                         # read raw output
3189                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3190                                 "--", $file_name
3191                                 or die_error(undef, "Open git-diff-tree failed");
3192                         @difftree = map { chomp; $_ } <$fd>;
3193                         close $fd
3194                                 or die_error(undef, "Reading git-diff-tree failed");
3195                         @difftree
3196                                 or die_error('404 Not Found', "Blob diff not found");
3197
3198                 } elsif (defined $hash &&
3199                          $hash =~ /[0-9a-fA-F]{40}/) {
3200                         # try to find filename from $hash
3201
3202                         # read filtered raw output
3203                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3204                                 or die_error(undef, "Open git-diff-tree failed");
3205                         @difftree =
3206                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3207                                 # $hash == to_id
3208                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3209                                 map { chomp; $_ } <$fd>;
3210                         close $fd
3211                                 or die_error(undef, "Reading git-diff-tree failed");
3212                         @difftree
3213                                 or die_error('404 Not Found', "Blob diff not found");
3214
3215                 } else {
3216                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3217                 }
3218
3219                 if (@difftree > 1) {
3220                         die_error('404 Not Found', "Ambiguous blob diff specification");
3221                 }
3222
3223                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3224                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3225                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3226
3227                 $hash_parent ||= $diffinfo{'from_id'};
3228                 $hash        ||= $diffinfo{'to_id'};
3229
3230                 # non-textual hash id's can be cached
3231                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3232                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3233                         $expires = '+1d';
3234                 }
3235
3236                 # open patch output
3237                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3238                         '-p', $hash_parent_base, $hash_base,
3239                         "--", $file_name
3240                         or die_error(undef, "Open git-diff-tree failed");
3241         }
3242
3243         # old/legacy style URI
3244         if (!%diffinfo && # if new style URI failed
3245             defined $hash && defined $hash_parent) {
3246                 # fake git-diff-tree raw output
3247                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3248                 $diffinfo{'from_id'} = $hash_parent;
3249                 $diffinfo{'to_id'}   = $hash;
3250                 if (defined $file_name) {
3251                         if (defined $file_parent) {
3252                                 $diffinfo{'status'} = '2';
3253                                 $diffinfo{'from_file'} = $file_parent;
3254                                 $diffinfo{'to_file'}   = $file_name;
3255                         } else { # assume not renamed
3256                                 $diffinfo{'status'} = '1';
3257                                 $diffinfo{'from_file'} = $file_name;
3258                                 $diffinfo{'to_file'}   = $file_name;
3259                         }
3260                 } else { # no filename given
3261                         $diffinfo{'status'} = '2';
3262                         $diffinfo{'from_file'} = $hash_parent;
3263                         $diffinfo{'to_file'}   = $hash;
3264                 }
3265
3266                 # non-textual hash id's can be cached
3267                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3268                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3269                         $expires = '+1d';
3270                 }
3271
3272                 # open patch output
3273                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3274                         or die_error(undef, "Open git-diff failed");
3275         } else  {
3276                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3277                         unless %diffinfo;
3278         }
3279
3280         # header
3281         if ($format eq 'html') {
3282                 my $formats_nav =
3283                         $cgi->a({-href => href(action=>"blobdiff_plain",
3284                                                hash=>$hash, hash_parent=>$hash_parent,
3285                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3286                                                file_name=>$file_name, file_parent=>$file_parent)},
3287                                 "raw");
3288                 git_header_html(undef, $expires);
3289                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3290                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3291                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3292                 } else {
3293                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3294                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3295                 }
3296                 if (defined $file_name) {
3297                         git_print_page_path($file_name, "blob", $hash_base);
3298                 } else {
3299                         print "<div class=\"page_path\"></div>\n";
3300                 }
3301
3302         } elsif ($format eq 'plain') {
3303                 print $cgi->header(
3304                         -type => 'text/plain',
3305                         -charset => 'utf-8',
3306                         -expires => $expires,
3307                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3308
3309                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3310
3311         } else {
3312                 die_error(undef, "Unknown blobdiff format");
3313         }
3314
3315         # patch
3316         if ($format eq 'html') {
3317                 print "<div class=\"page_body\">\n";
3318
3319                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3320                 close $fd;
3321
3322                 print "</div>\n"; # class="page_body"
3323                 git_footer_html();
3324
3325         } else {
3326                 while (my $line = <$fd>) {
3327                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3328                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3329
3330                         print $line;
3331
3332                         last if $line =~ m!^\+\+\+!;
3333                 }
3334                 local $/ = undef;
3335                 print <$fd>;
3336                 close $fd;
3337         }
3338 }
3339
3340 sub git_blobdiff_plain {
3341         git_blobdiff('plain');
3342 }
3343
3344 sub git_commitdiff {
3345         my $format = shift || 'html';
3346         my %co = parse_commit($hash);
3347         if (!%co) {
3348                 die_error(undef, "Unknown commit object");
3349         }
3350         if (!defined $hash_parent) {
3351                 $hash_parent = $co{'parent'} || '--root';
3352         }
3353
3354         # read commitdiff
3355         my $fd;
3356         my @difftree;
3357         if ($format eq 'html') {
3358                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3359                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3360                         or die_error(undef, "Open git-diff-tree failed");
3361
3362                 while (chomp(my $line = <$fd>)) {
3363                         # empty line ends raw part of diff-tree output
3364                         last unless $line;
3365                         push @difftree, $line;
3366                 }
3367
3368         } elsif ($format eq 'plain') {
3369                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3370                         '-p', $hash_parent, $hash
3371                         or die_error(undef, "Open git-diff-tree failed");
3372
3373         } else {
3374                 die_error(undef, "Unknown commitdiff format");
3375         }
3376
3377         # non-textual hash id's can be cached
3378         my $expires;
3379         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3380                 $expires = "+1d";
3381         }
3382
3383         # write commit message
3384         if ($format eq 'html') {
3385                 my $refs = git_get_references();
3386                 my $ref = format_ref_marker($refs, $co{'id'});
3387                 my $formats_nav =
3388                         $cgi->a({-href => href(action=>"commitdiff_plain",
3389                                                hash=>$hash, hash_parent=>$hash_parent)},
3390                                 "raw");
3391
3392                 git_header_html(undef, $expires);
3393                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3394                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3395                 git_print_authorship(\%co);
3396                 print "<div class=\"page_body\">\n";
3397                 print "<div class=\"log\">\n";
3398                 git_print_simplified_log($co{'comment'}, 1); # skip title
3399                 print "</div>\n"; # class="log"
3400
3401         } elsif ($format eq 'plain') {
3402                 my $refs = git_get_references("tags");
3403                 my $tagname = git_get_rev_name_tags($hash);
3404                 my $filename = basename($project) . "-$hash.patch";
3405
3406                 print $cgi->header(
3407                         -type => 'text/plain',
3408                         -charset => 'utf-8',
3409                         -expires => $expires,
3410                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3411                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3412                 print <<TEXT;
3413 From: $co{'author'}
3414 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3415 Subject: $co{'title'}
3416 TEXT
3417                 print "X-Git-Tag: $tagname\n" if $tagname;
3418                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3419
3420                 foreach my $line (@{$co{'comment'}}) {
3421                         print "$line\n";
3422                 }
3423                 print "---\n\n";
3424         }
3425
3426         # write patch
3427         if ($format eq 'html') {
3428                 git_difftree_body(\@difftree, $hash, $hash_parent);
3429                 print "<br/>\n";
3430
3431                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3432                 close $fd;
3433                 print "</div>\n"; # class="page_body"
3434                 git_footer_html();
3435
3436         } elsif ($format eq 'plain') {
3437                 local $/ = undef;
3438                 print <$fd>;
3439                 close $fd
3440                         or print "Reading git-diff-tree failed\n";
3441         }
3442 }
3443
3444 sub git_commitdiff_plain {
3445         git_commitdiff('plain');
3446 }
3447
3448 sub git_history {
3449         if (!defined $hash_base) {
3450                 $hash_base = git_get_head_hash($project);
3451         }
3452         if (!defined $page) {
3453                 $page = 0;
3454         }
3455         my $ftype;
3456         my %co = parse_commit($hash_base);
3457         if (!%co) {
3458                 die_error(undef, "Unknown commit object");
3459         }
3460
3461         my $refs = git_get_references();
3462         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3463
3464         if (!defined $hash && defined $file_name) {
3465                 $hash = git_get_hash_by_path($hash_base, $file_name);
3466         }
3467         if (defined $hash) {
3468                 $ftype = git_get_type($hash);
3469         }
3470
3471         open my $fd, "-|",
3472                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3473                         or die_error(undef, "Open git-rev-list-failed");
3474         my @revlist = map { chomp; $_ } <$fd>;
3475         close $fd
3476                 or die_error(undef, "Reading git-rev-list failed");
3477
3478         my $paging_nav = '';
3479         if ($page > 0) {
3480                 $paging_nav .=
3481                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3482                                                file_name=>$file_name)},
3483                                 "first");
3484                 $paging_nav .= " &sdot; " .
3485                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3486                                                file_name=>$file_name, page=>$page-1),
3487                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3488         } else {
3489                 $paging_nav .= "first";
3490                 $paging_nav .= " &sdot; prev";
3491         }
3492         if ($#revlist >= (100 * ($page+1)-1)) {
3493                 $paging_nav .= " &sdot; " .
3494                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3495                                                file_name=>$file_name, page=>$page+1),
3496                                  -accesskey => "n", -title => "Alt-n"}, "next");
3497         } else {
3498                 $paging_nav .= " &sdot; next";
3499         }
3500         my $next_link = '';
3501         if ($#revlist >= (100 * ($page+1)-1)) {
3502                 $next_link =
3503                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3504                                                file_name=>$file_name, page=>$page+1),
3505                                  -title => "Alt-n"}, "next");
3506         }
3507
3508         git_header_html();
3509         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3510         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3511         git_print_page_path($file_name, $ftype, $hash_base);
3512
3513         git_history_body(\@revlist, ($page * 100), $#revlist,
3514                          $refs, $hash_base, $ftype, $next_link);
3515
3516         git_footer_html();
3517 }
3518
3519 sub git_search {
3520         if (!defined $searchtext) {
3521                 die_error(undef, "Text field empty");
3522         }
3523         if (!defined $hash) {
3524                 $hash = git_get_head_hash($project);
3525         }
3526         my %co = parse_commit($hash);
3527         if (!%co) {
3528                 die_error(undef, "Unknown commit object");
3529         }
3530
3531         my $commit_search = 1;
3532         my $author_search = 0;
3533         my $committer_search = 0;
3534         my $pickaxe_search = 0;
3535         if ($searchtext =~ s/^author\\://i) {
3536                 $author_search = 1;
3537         } elsif ($searchtext =~ s/^committer\\://i) {
3538                 $committer_search = 1;
3539         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3540                 $commit_search = 0;
3541                 $pickaxe_search = 1;
3542
3543                 # pickaxe may take all resources of your box and run for several minutes
3544                 # with every query - so decide by yourself how public you make this feature
3545                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3546                 if (!$have_pickaxe) {
3547                         die_error('403 Permission denied', "Permission denied");
3548                 }
3549         }
3550         git_header_html();
3551         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3552         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3553
3554         print "<table cellspacing=\"0\">\n";
3555         my $alternate = 1;
3556         if ($commit_search) {
3557                 $/ = "\0";
3558                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3559                 while (my $commit_text = <$fd>) {
3560                         if (!grep m/$searchtext/i, $commit_text) {
3561                                 next;
3562                         }
3563                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3564                                 next;
3565                         }
3566                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3567                                 next;
3568                         }
3569                         my @commit_lines = split "\n", $commit_text;
3570                         my %co = parse_commit(undef, \@commit_lines);
3571                         if (!%co) {
3572                                 next;
3573                         }
3574                         if ($alternate) {
3575                                 print "<tr class=\"dark\">\n";
3576                         } else {
3577                                 print "<tr class=\"light\">\n";
3578                         }
3579                         $alternate ^= 1;
3580                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3581                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3582                               "<td>" .
3583                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3584                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3585                         my $comment = $co{'comment'};
3586                         foreach my $line (@$comment) {
3587                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3588                                         my $lead = esc_html($1) || "";
3589                                         $lead = chop_str($lead, 30, 10);
3590                                         my $match = esc_html($2) || "";
3591                                         my $trail = esc_html($3) || "";
3592                                         $trail = chop_str($trail, 30, 10);
3593                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3594                                         print chop_str($text, 80, 5) . "<br/>\n";
3595                                 }
3596                         }
3597                         print "</td>\n" .
3598                               "<td class=\"link\">" .
3599                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3600                               " | " .
3601                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3602                         print "</td>\n" .
3603                               "</tr>\n";
3604                 }
3605                 close $fd;
3606         }
3607
3608         if ($pickaxe_search) {
3609                 $/ = "\n";
3610                 my $git_command = git_cmd_str();
3611                 open my $fd, "-|", "$git_command rev-list $hash | " .
3612                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3613                 undef %co;
3614                 my @files;
3615                 while (my $line = <$fd>) {
3616                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3617                                 my %set;
3618                                 $set{'file'} = $6;
3619                                 $set{'from_id'} = $3;
3620                                 $set{'to_id'} = $4;
3621                                 $set{'id'} = $set{'to_id'};
3622                                 if ($set{'id'} =~ m/0{40}/) {
3623                                         $set{'id'} = $set{'from_id'};
3624                                 }
3625                                 if ($set{'id'} =~ m/0{40}/) {
3626                                         next;
3627                                 }
3628                                 push @files, \%set;
3629                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3630                                 if (%co) {
3631                                         if ($alternate) {
3632                                                 print "<tr class=\"dark\">\n";
3633                                         } else {
3634                                                 print "<tr class=\"light\">\n";
3635                                         }
3636                                         $alternate ^= 1;
3637                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3638                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3639                                               "<td>" .
3640                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3641                                                       -class => "list subject"},
3642                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3643                                         while (my $setref = shift @files) {
3644                                                 my %set = %$setref;
3645                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3646                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3647                                                               -class => "list"},
3648                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3649                                                       "<br/>\n";
3650                                         }
3651                                         print "</td>\n" .
3652                                               "<td class=\"link\">" .
3653                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3654                                               " | " .
3655                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3656                                         print "</td>\n" .
3657                                               "</tr>\n";
3658                                 }
3659                                 %co = parse_commit($1);
3660                         }
3661                 }
3662                 close $fd;
3663         }
3664         print "</table>\n";
3665         git_footer_html();
3666 }
3667
3668 sub git_shortlog {
3669         my $head = git_get_head_hash($project);
3670         if (!defined $hash) {
3671                 $hash = $head;
3672         }
3673         if (!defined $page) {
3674                 $page = 0;
3675         }
3676         my $refs = git_get_references();
3677
3678         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3679         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3680                 or die_error(undef, "Open git-rev-list failed");
3681         my @revlist = map { chomp; $_ } <$fd>;
3682         close $fd;
3683
3684         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3685         my $next_link = '';
3686         if ($#revlist >= (100 * ($page+1)-1)) {
3687                 $next_link =
3688                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3689                                  -title => "Alt-n"}, "next");
3690         }
3691
3692
3693         git_header_html();
3694         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3695         git_print_header_div('summary', $project);
3696
3697         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3698
3699         git_footer_html();
3700 }
3701
3702 ## ......................................................................
3703 ## feeds (RSS, OPML)
3704
3705 sub git_rss {
3706         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3707         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3708                 or die_error(undef, "Open git-rev-list failed");
3709         my @revlist = map { chomp; $_ } <$fd>;
3710         close $fd or die_error(undef, "Reading git-rev-list failed");
3711         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3712         print <<XML;
3713 <?xml version="1.0" encoding="utf-8"?>
3714 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3715 <channel>
3716 <title>$project $my_uri $my_url</title>
3717 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3718 <description>$project log</description>
3719 <language>en</language>
3720 XML
3721
3722         for (my $i = 0; $i <= $#revlist; $i++) {
3723                 my $commit = $revlist[$i];
3724                 my %co = parse_commit($commit);
3725                 # we read 150, we always show 30 and the ones more recent than 48 hours
3726                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3727                         last;
3728                 }
3729                 my %cd = parse_date($co{'committer_epoch'});
3730                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3731                         $co{'parent'}, $co{'id'}
3732                         or next;
3733                 my @difftree = map { chomp; $_ } <$fd>;
3734                 close $fd
3735                         or next;
3736                 print "<item>\n" .
3737                       "<title>" .
3738                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3739                       "</title>\n" .
3740                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3741                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3742                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3743                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3744                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3745                       "<content:encoded>" .
3746                       "<![CDATA[\n";
3747                 my $comment = $co{'comment'};
3748                 foreach my $line (@$comment) {
3749                         $line = to_utf8($line);
3750                         print "$line<br/>\n";
3751                 }
3752                 print "<br/>\n";
3753                 foreach my $line (@difftree) {
3754                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3755                                 next;
3756                         }
3757                         my $file = esc_html(unquote($7));
3758                         $file = to_utf8($file);
3759                         print "$file<br/>\n";
3760                 }
3761                 print "]]>\n" .
3762                       "</content:encoded>\n" .
3763                       "</item>\n";
3764         }
3765         print "</channel></rss>";
3766 }
3767
3768 sub git_opml {
3769         my @list = git_get_projects_list();
3770
3771         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3772         print <<XML;
3773 <?xml version="1.0" encoding="utf-8"?>
3774 <opml version="1.0">
3775 <head>
3776   <title>$site_name Git OPML Export</title>
3777 </head>
3778 <body>
3779 <outline text="git RSS feeds">
3780 XML
3781
3782         foreach my $pr (@list) {
3783                 my %proj = %$pr;
3784                 my $head = git_get_head_hash($proj{'path'});
3785                 if (!defined $head) {
3786                         next;
3787                 }
3788                 $git_dir = "$projectroot/$proj{'path'}";
3789                 my %co = parse_commit($head);
3790                 if (!%co) {
3791                         next;
3792                 }
3793
3794                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3795                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3796                 my $html = "$my_url?p=$proj{'path'};a=summary";
3797                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3798         }
3799         print <<XML;
3800 </outline>
3801 </body>
3802 </opml>
3803 XML
3804 }