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