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         # remove added spaces
1124         foreach my $line (@commit_lines) {
1125                 $line =~ s/^    //;
1126         }
1127         $co{'comment'} = \@commit_lines;
1128
1129         my $age = time - $co{'committer_epoch'};
1130         $co{'age'} = $age;
1131         $co{'age_string'} = age_string($age);
1132         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1133         if ($age > 60*60*24*7*2) {
1134                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1135                 $co{'age_string_age'} = $co{'age_string'};
1136         } else {
1137                 $co{'age_string_date'} = $co{'age_string'};
1138                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1139         }
1140         return %co;
1141 }
1142
1143 # parse ref from ref_file, given by ref_id, with given type
1144 sub parse_ref {
1145         my $ref_file = shift;
1146         my $ref_id = shift;
1147         my $type = shift || git_get_type($ref_id);
1148         my %ref_item;
1149
1150         $ref_item{'type'} = $type;
1151         $ref_item{'id'} = $ref_id;
1152         $ref_item{'epoch'} = 0;
1153         $ref_item{'age'} = "unknown";
1154         if ($type eq "tag") {
1155                 my %tag = parse_tag($ref_id);
1156                 $ref_item{'comment'} = $tag{'comment'};
1157                 if ($tag{'type'} eq "commit") {
1158                         my %co = parse_commit($tag{'object'});
1159                         $ref_item{'epoch'} = $co{'committer_epoch'};
1160                         $ref_item{'age'} = $co{'age_string'};
1161                 } elsif (defined($tag{'epoch'})) {
1162                         my $age = time - $tag{'epoch'};
1163                         $ref_item{'epoch'} = $tag{'epoch'};
1164                         $ref_item{'age'} = age_string($age);
1165                 }
1166                 $ref_item{'reftype'} = $tag{'type'};
1167                 $ref_item{'name'} = $tag{'name'};
1168                 $ref_item{'refid'} = $tag{'object'};
1169         } elsif ($type eq "commit"){
1170                 my %co = parse_commit($ref_id);
1171                 $ref_item{'reftype'} = "commit";
1172                 $ref_item{'name'} = $ref_file;
1173                 $ref_item{'title'} = $co{'title'};
1174                 $ref_item{'refid'} = $ref_id;
1175                 $ref_item{'epoch'} = $co{'committer_epoch'};
1176                 $ref_item{'age'} = $co{'age_string'};
1177         } else {
1178                 $ref_item{'reftype'} = $type;
1179                 $ref_item{'name'} = $ref_file;
1180                 $ref_item{'refid'} = $ref_id;
1181         }
1182
1183         return %ref_item;
1184 }
1185
1186 # parse line of git-diff-tree "raw" output
1187 sub parse_difftree_raw_line {
1188         my $line = shift;
1189         my %res;
1190
1191         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1192         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1193         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1194                 $res{'from_mode'} = $1;
1195                 $res{'to_mode'} = $2;
1196                 $res{'from_id'} = $3;
1197                 $res{'to_id'} = $4;
1198                 $res{'status'} = $5;
1199                 $res{'similarity'} = $6;
1200                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1201                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1202                 } else {
1203                         $res{'file'} = unquote($7);
1204                 }
1205         }
1206         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1207         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1208                 $res{'commit'} = $1;
1209         }
1210
1211         return wantarray ? %res : \%res;
1212 }
1213
1214 # parse line of git-ls-tree output
1215 sub parse_ls_tree_line ($;%) {
1216         my $line = shift;
1217         my %opts = @_;
1218         my %res;
1219
1220         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1221         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1222
1223         $res{'mode'} = $1;
1224         $res{'type'} = $2;
1225         $res{'hash'} = $3;
1226         if ($opts{'-z'}) {
1227                 $res{'name'} = $4;
1228         } else {
1229                 $res{'name'} = unquote($4);
1230         }
1231
1232         return wantarray ? %res : \%res;
1233 }
1234
1235 ## ......................................................................
1236 ## parse to array of hashes functions
1237
1238 sub git_get_refs_list {
1239         my $type = shift || "";
1240         my %refs;
1241         my @reflist;
1242
1243         my @refs;
1244         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1245                 or return;
1246         while (my $line = <$fd>) {
1247                 chomp $line;
1248                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1249                         if (defined $refs{$1}) {
1250                                 push @{$refs{$1}}, $2;
1251                         } else {
1252                                 $refs{$1} = [ $2 ];
1253                         }
1254
1255                         if (! $4) { # unpeeled, direct reference
1256                                 push @refs, { hash => $1, name => $3 }; # without type
1257                         } elsif ($3 eq $refs[-1]{'name'}) {
1258                                 # most likely a tag is followed by its peeled
1259                                 # (deref) one, and when that happens we know the
1260                                 # previous one was of type 'tag'.
1261                                 $refs[-1]{'type'} = "tag";
1262                         }
1263                 }
1264         }
1265         close $fd;
1266
1267         foreach my $ref (@refs) {
1268                 my $ref_file = $ref->{'name'};
1269                 my $ref_id   = $ref->{'hash'};
1270
1271                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1272                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1273
1274                 push @reflist, \%ref_item;
1275         }
1276         # sort refs by age
1277         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1278         return (\@reflist, \%refs);
1279 }
1280
1281 ## ----------------------------------------------------------------------
1282 ## filesystem-related functions
1283
1284 sub get_file_owner {
1285         my $path = shift;
1286
1287         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1288         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1289         if (!defined $gcos) {
1290                 return undef;
1291         }
1292         my $owner = $gcos;
1293         $owner =~ s/[,;].*$//;
1294         return to_utf8($owner);
1295 }
1296
1297 ## ......................................................................
1298 ## mimetype related functions
1299
1300 sub mimetype_guess_file {
1301         my $filename = shift;
1302         my $mimemap = shift;
1303         -r $mimemap or return undef;
1304
1305         my %mimemap;
1306         open(MIME, $mimemap) or return undef;
1307         while (<MIME>) {
1308                 next if m/^#/; # skip comments
1309                 my ($mime, $exts) = split(/\t+/);
1310                 if (defined $exts) {
1311                         my @exts = split(/\s+/, $exts);
1312                         foreach my $ext (@exts) {
1313                                 $mimemap{$ext} = $mime;
1314                         }
1315                 }
1316         }
1317         close(MIME);
1318
1319         $filename =~ /\.([^.]*)$/;
1320         return $mimemap{$1};
1321 }
1322
1323 sub mimetype_guess {
1324         my $filename = shift;
1325         my $mime;
1326         $filename =~ /\./ or return undef;
1327
1328         if ($mimetypes_file) {
1329                 my $file = $mimetypes_file;
1330                 if ($file !~ m!^/!) { # if it is relative path
1331                         # it is relative to project
1332                         $file = "$projectroot/$project/$file";
1333                 }
1334                 $mime = mimetype_guess_file($filename, $file);
1335         }
1336         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1337         return $mime;
1338 }
1339
1340 sub blob_mimetype {
1341         my $fd = shift;
1342         my $filename = shift;
1343
1344         if ($filename) {
1345                 my $mime = mimetype_guess($filename);
1346                 $mime and return $mime;
1347         }
1348
1349         # just in case
1350         return $default_blob_plain_mimetype unless $fd;
1351
1352         if (-T $fd) {
1353                 return 'text/plain' .
1354                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1355         } elsif (! $filename) {
1356                 return 'application/octet-stream';
1357         } elsif ($filename =~ m/\.png$/i) {
1358                 return 'image/png';
1359         } elsif ($filename =~ m/\.gif$/i) {
1360                 return 'image/gif';
1361         } elsif ($filename =~ m/\.jpe?g$/i) {
1362                 return 'image/jpeg';
1363         } else {
1364                 return 'application/octet-stream';
1365         }
1366 }
1367
1368 ## ======================================================================
1369 ## functions printing HTML: header, footer, error page
1370
1371 sub git_header_html {
1372         my $status = shift || "200 OK";
1373         my $expires = shift;
1374
1375         my $title = "$site_name git";
1376         if (defined $project) {
1377                 $title .= " - $project";
1378                 if (defined $action) {
1379                         $title .= "/$action";
1380                         if (defined $file_name) {
1381                                 $title .= " - " . esc_html($file_name);
1382                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1383                                         $title .= "/";
1384                                 }
1385                         }
1386                 }
1387         }
1388         my $content_type;
1389         # require explicit support from the UA if we are to send the page as
1390         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1391         # we have to do this because MSIE sometimes globs '*/*', pretending to
1392         # support xhtml+xml but choking when it gets what it asked for.
1393         if (defined $cgi->http('HTTP_ACCEPT') &&
1394             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1395             $cgi->Accept('application/xhtml+xml') != 0) {
1396                 $content_type = 'application/xhtml+xml';
1397         } else {
1398                 $content_type = 'text/html';
1399         }
1400         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1401                            -status=> $status, -expires => $expires);
1402         print <<EOF;
1403 <?xml version="1.0" encoding="utf-8"?>
1404 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1405 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1406 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1407 <!-- git core binaries version $git_version -->
1408 <head>
1409 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1410 <meta name="generator" content="gitweb/$version git/$git_version"/>
1411 <meta name="robots" content="index, nofollow"/>
1412 <title>$title</title>
1413 EOF
1414 # print out each stylesheet that exist
1415         if (defined $stylesheet) {
1416 #provides backwards capability for those people who define style sheet in a config file
1417                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1418         } else {
1419                 foreach my $stylesheet (@stylesheets) {
1420                         next unless $stylesheet;
1421                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1422                 }
1423         }
1424         if (defined $project) {
1425                 printf('<link rel="alternate" title="%s log" '.
1426                        'href="%s" type="application/rss+xml"/>'."\n",
1427                        esc_param($project), href(action=>"rss"));
1428         } else {
1429                 printf('<link rel="alternate" title="%s projects list" '.
1430                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1431                        $site_name, href(project=>undef, action=>"project_index"));
1432                 printf('<link rel="alternate" title="%s projects logs" '.
1433                        'href="%s" type="text/x-opml"/>'."\n",
1434                        $site_name, href(project=>undef, action=>"opml"));
1435         }
1436         if (defined $favicon) {
1437                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1438         }
1439
1440         print "</head>\n" .
1441               "<body>\n";
1442
1443         if (-f $site_header) {
1444                 open (my $fd, $site_header);
1445                 print <$fd>;
1446                 close $fd;
1447         }
1448
1449         print "<div class=\"page_header\">\n" .
1450               "<a href=\"" . esc_html($githelp_url) .
1451               "\" title=\"" . esc_html($githelp_label) .
1452               "\">" .
1453               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1454               "</a>\n";
1455         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1456         if (defined $project) {
1457                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1458                 if (defined $action) {
1459                         print " / $action";
1460                 }
1461                 print "\n";
1462                 if (!defined $searchtext) {
1463                         $searchtext = "";
1464                 }
1465                 my $search_hash;
1466                 if (defined $hash_base) {
1467                         $search_hash = $hash_base;
1468                 } elsif (defined $hash) {
1469                         $search_hash = $hash;
1470                 } else {
1471                         $search_hash = "HEAD";
1472                 }
1473                 $cgi->param("a", "search");
1474                 $cgi->param("h", $search_hash);
1475                 print $cgi->startform(-method => "get", -action => $my_uri) .
1476                       "<div class=\"search\">\n" .
1477                       $cgi->hidden(-name => "p") . "\n" .
1478                       $cgi->hidden(-name => "a") . "\n" .
1479                       $cgi->hidden(-name => "h") . "\n" .
1480                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1481                       "</div>" .
1482                       $cgi->end_form() . "\n";
1483         }
1484         print "</div>\n";
1485 }
1486
1487 sub git_footer_html {
1488         print "<div class=\"page_footer\">\n";
1489         if (defined $project) {
1490                 my $descr = git_get_project_description($project);
1491                 if (defined $descr) {
1492                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1493                 }
1494                 print $cgi->a({-href => href(action=>"rss"),
1495                               -class => "rss_logo"}, "RSS") . "\n";
1496         } else {
1497                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1498                               -class => "rss_logo"}, "OPML") . " ";
1499                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1500                               -class => "rss_logo"}, "TXT") . "\n";
1501         }
1502         print "</div>\n" ;
1503
1504         if (-f $site_footer) {
1505                 open (my $fd, $site_footer);
1506                 print <$fd>;
1507                 close $fd;
1508         }
1509
1510         print "</body>\n" .
1511               "</html>";
1512 }
1513
1514 sub die_error {
1515         my $status = shift || "403 Forbidden";
1516         my $error = shift || "Malformed query, file missing or permission denied";
1517
1518         git_header_html($status);
1519         print <<EOF;
1520 <div class="page_body">
1521 <br /><br />
1522 $status - $error
1523 <br />
1524 </div>
1525 EOF
1526         git_footer_html();
1527         exit;
1528 }
1529
1530 ## ----------------------------------------------------------------------
1531 ## functions printing or outputting HTML: navigation
1532
1533 sub git_print_page_nav {
1534         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1535         $extra = '' if !defined $extra; # pager or formats
1536
1537         my @navs = qw(summary shortlog log commit commitdiff tree);
1538         if ($suppress) {
1539                 @navs = grep { $_ ne $suppress } @navs;
1540         }
1541
1542         my %arg = map { $_ => {action=>$_} } @navs;
1543         if (defined $head) {
1544                 for (qw(commit commitdiff)) {
1545                         $arg{$_}{hash} = $head;
1546                 }
1547                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1548                         for (qw(shortlog log)) {
1549                                 $arg{$_}{hash} = $head;
1550                         }
1551                 }
1552         }
1553         $arg{tree}{hash} = $treehead if defined $treehead;
1554         $arg{tree}{hash_base} = $treebase if defined $treebase;
1555
1556         print "<div class=\"page_nav\">\n" .
1557                 (join " | ",
1558                  map { $_ eq $current ?
1559                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1560                  } @navs);
1561         print "<br/>\n$extra<br/>\n" .
1562               "</div>\n";
1563 }
1564
1565 sub format_paging_nav {
1566         my ($action, $hash, $head, $page, $nrevs) = @_;
1567         my $paging_nav;
1568
1569
1570         if ($hash ne $head || $page) {
1571                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1572         } else {
1573                 $paging_nav .= "HEAD";
1574         }
1575
1576         if ($page > 0) {
1577                 $paging_nav .= " &sdot; " .
1578                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1579                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1580         } else {
1581                 $paging_nav .= " &sdot; prev";
1582         }
1583
1584         if ($nrevs >= (100 * ($page+1)-1)) {
1585                 $paging_nav .= " &sdot; " .
1586                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1587                                  -accesskey => "n", -title => "Alt-n"}, "next");
1588         } else {
1589                 $paging_nav .= " &sdot; next";
1590         }
1591
1592         return $paging_nav;
1593 }
1594
1595 ## ......................................................................
1596 ## functions printing or outputting HTML: div
1597
1598 sub git_print_header_div {
1599         my ($action, $title, $hash, $hash_base) = @_;
1600         my %args = ();
1601
1602         $args{action} = $action;
1603         $args{hash} = $hash if $hash;
1604         $args{hash_base} = $hash_base if $hash_base;
1605
1606         print "<div class=\"header\">\n" .
1607               $cgi->a({-href => href(%args), -class => "title"},
1608               $title ? $title : $action) .
1609               "\n</div>\n";
1610 }
1611
1612 #sub git_print_authorship (\%) {
1613 sub git_print_authorship {
1614         my $co = shift;
1615
1616         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1617         print "<div class=\"author_date\">" .
1618               esc_html($co->{'author_name'}) .
1619               " [$ad{'rfc2822'}";
1620         if ($ad{'hour_local'} < 6) {
1621                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1622                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1623         } else {
1624                 printf(" (%02d:%02d %s)",
1625                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1626         }
1627         print "]</div>\n";
1628 }
1629
1630 sub git_print_page_path {
1631         my $name = shift;
1632         my $type = shift;
1633         my $hb = shift;
1634
1635         if (!defined $name) {
1636                 print "<div class=\"page_path\">/</div>\n";
1637         } else {
1638                 my @dirname = split '/', $name;
1639                 my $basename = pop @dirname;
1640                 my $fullname = '';
1641
1642                 print "<div class=\"page_path\">";
1643                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1644                               -title => 'tree root'}, "[$project]");
1645                 print " / ";
1646                 foreach my $dir (@dirname) {
1647                         $fullname .= ($fullname ? '/' : '') . $dir;
1648                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1649                                                      hash_base=>$hb),
1650                                       -title => $fullname}, esc_html($dir));
1651                         print " / ";
1652                 }
1653                 if (defined $type && $type eq 'blob') {
1654                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1655                                                      hash_base=>$hb),
1656                                       -title => $name}, esc_html($basename));
1657                 } elsif (defined $type && $type eq 'tree') {
1658                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1659                                                      hash_base=>$hb),
1660                                       -title => $name}, esc_html($basename));
1661                 } else {
1662                         print esc_html($basename);
1663                 }
1664                 print "<br/></div>\n";
1665         }
1666 }
1667
1668 # sub git_print_log (\@;%) {
1669 sub git_print_log ($;%) {
1670         my $log = shift;
1671         my %opts = @_;
1672
1673         if ($opts{'-remove_title'}) {
1674                 # remove title, i.e. first line of log
1675                 shift @$log;
1676         }
1677         # remove leading empty lines
1678         while (defined $log->[0] && $log->[0] eq "") {
1679                 shift @$log;
1680         }
1681
1682         # print log
1683         my $signoff = 0;
1684         my $empty = 0;
1685         foreach my $line (@$log) {
1686                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1687                         $signoff = 1;
1688                         $empty = 0;
1689                         if (! $opts{'-remove_signoff'}) {
1690                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1691                                 next;
1692                         } else {
1693                                 # remove signoff lines
1694                                 next;
1695                         }
1696                 } else {
1697                         $signoff = 0;
1698                 }
1699
1700                 # print only one empty line
1701                 # do not print empty line after signoff
1702                 if ($line eq "") {
1703                         next if ($empty || $signoff);
1704                         $empty = 1;
1705                 } else {
1706                         $empty = 0;
1707                 }
1708
1709                 print format_log_line_html($line) . "<br/>\n";
1710         }
1711
1712         if ($opts{'-final_empty_line'}) {
1713                 # end with single empty line
1714                 print "<br/>\n" unless $empty;
1715         }
1716 }
1717
1718 sub git_print_simplified_log {
1719         my $log = shift;
1720         my $remove_title = shift;
1721
1722         git_print_log($log,
1723                 -final_empty_line=> 1,
1724                 -remove_title => $remove_title);
1725 }
1726
1727 # print tree entry (row of git_tree), but without encompassing <tr> element
1728 sub git_print_tree_entry {
1729         my ($t, $basedir, $hash_base, $have_blame) = @_;
1730
1731         my %base_key = ();
1732         $base_key{hash_base} = $hash_base if defined $hash_base;
1733
1734         # The format of a table row is: mode list link.  Where mode is
1735         # the mode of the entry, list is the name of the entry, an href,
1736         # and link is the action links of the entry.
1737
1738         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1739         if ($t->{'type'} eq "blob") {
1740                 print "<td class=\"list\">" .
1741                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1742                                                file_name=>"$basedir$t->{'name'}", %base_key),
1743                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1744                 print "<td class=\"link\">";
1745                 if ($have_blame) {
1746                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1747                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1748                                       "blame");
1749                 }
1750                 if (defined $hash_base) {
1751                         if ($have_blame) {
1752                                 print " | ";
1753                         }
1754                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1755                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1756                                       "history");
1757                 }
1758                 print " | " .
1759                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1760                                                file_name=>"$basedir$t->{'name'}")},
1761                                 "raw");
1762                 print "</td>\n";
1763
1764         } elsif ($t->{'type'} eq "tree") {
1765                 print "<td class=\"list\">";
1766                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1767                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1768                               esc_html($t->{'name'}));
1769                 print "</td>\n";
1770                 print "<td class=\"link\">";
1771                 if (defined $hash_base) {
1772                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1773                                                      file_name=>"$basedir$t->{'name'}")},
1774                                       "history");
1775                 }
1776                 print "</td>\n";
1777         }
1778 }
1779
1780 ## ......................................................................
1781 ## functions printing large fragments of HTML
1782
1783 sub git_difftree_body {
1784         my ($difftree, $hash, $parent) = @_;
1785
1786         print "<div class=\"list_head\">\n";
1787         if ($#{$difftree} > 10) {
1788                 print(($#{$difftree} + 1) . " files changed:\n");
1789         }
1790         print "</div>\n";
1791
1792         print "<table class=\"diff_tree\">\n";
1793         my $alternate = 1;
1794         my $patchno = 0;
1795         foreach my $line (@{$difftree}) {
1796                 my %diff = parse_difftree_raw_line($line);
1797
1798                 if ($alternate) {
1799                         print "<tr class=\"dark\">\n";
1800                 } else {
1801                         print "<tr class=\"light\">\n";
1802                 }
1803                 $alternate ^= 1;
1804
1805                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1806                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1807                 if ($diff{'to_mode'} ne ('0' x 6)) {
1808                         $to_mode_oct = oct $diff{'to_mode'};
1809                         if (S_ISREG($to_mode_oct)) { # only for regular file
1810                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1811                         }
1812                         $to_file_type = file_type($diff{'to_mode'});
1813                 }
1814                 if ($diff{'from_mode'} ne ('0' x 6)) {
1815                         $from_mode_oct = oct $diff{'from_mode'};
1816                         if (S_ISREG($to_mode_oct)) { # only for regular file
1817                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1818                         }
1819                         $from_file_type = file_type($diff{'from_mode'});
1820                 }
1821
1822                 if ($diff{'status'} eq "A") { # created
1823                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1824                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1825                         $mode_chng   .= "]</span>";
1826                         print "<td>";
1827                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1828                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1829                                        -class => "list"}, esc_html($diff{'file'}));
1830                         print "</td>\n";
1831                         print "<td>$mode_chng</td>\n";
1832                         print "<td class=\"link\">";
1833                         if ($action eq 'commitdiff') {
1834                                 # link to patch
1835                                 $patchno++;
1836                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1837                         }
1838                         print "</td>\n";
1839
1840                 } elsif ($diff{'status'} eq "D") { # deleted
1841                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1842                         print "<td>";
1843                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1844                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1845                                        -class => "list"}, esc_html($diff{'file'}));
1846                         print "</td>\n";
1847                         print "<td>$mode_chng</td>\n";
1848                         print "<td class=\"link\">";
1849                         if ($action eq 'commitdiff') {
1850                                 # link to patch
1851                                 $patchno++;
1852                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1853                                 print " | ";
1854                         }
1855                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1856                                                      file_name=>$diff{'file'})},
1857                                       "blame") . " | ";
1858                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1859                                                      file_name=>$diff{'file'})},
1860                                       "history");
1861                         print "</td>\n";
1862
1863                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1864                         my $mode_chnge = "";
1865                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1866                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1867                                 if ($from_file_type != $to_file_type) {
1868                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1869                                 }
1870                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1871                                         if ($from_mode_str && $to_mode_str) {
1872                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1873                                         } elsif ($to_mode_str) {
1874                                                 $mode_chnge .= " mode: $to_mode_str";
1875                                         }
1876                                 }
1877                                 $mode_chnge .= "]</span>\n";
1878                         }
1879                         print "<td>";
1880                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1881                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1882                                        -class => "list"}, esc_html($diff{'file'}));
1883                         print "</td>\n";
1884                         print "<td>$mode_chnge</td>\n";
1885                         print "<td class=\"link\">";
1886                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1887                                 if ($action eq 'commitdiff') {
1888                                         # link to patch
1889                                         $patchno++;
1890                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1891                                 } else {
1892                                         print $cgi->a({-href => href(action=>"blobdiff",
1893                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1894                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1895                                                                      file_name=>$diff{'file'})},
1896                                                       "diff");
1897                                 }
1898                                 print " | ";
1899                         }
1900                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1901                                                      file_name=>$diff{'file'})},
1902                                       "blame") . " | ";
1903                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1904                                                      file_name=>$diff{'file'})},
1905                                       "history");
1906                         print "</td>\n";
1907
1908                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1909                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1910                         my $nstatus = $status_name{$diff{'status'}};
1911                         my $mode_chng = "";
1912                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1913                                 # mode also for directories, so we cannot use $to_mode_str
1914                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1915                         }
1916                         print "<td>" .
1917                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1918                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1919                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1920                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1921                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1922                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1923                                       -class => "list"}, esc_html($diff{'from_file'})) .
1924                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1925                               "<td class=\"link\">";
1926                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1927                                 if ($action eq 'commitdiff') {
1928                                         # link to patch
1929                                         $patchno++;
1930                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1931                                 } else {
1932                                         print $cgi->a({-href => href(action=>"blobdiff",
1933                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1934                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1935                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1936                                                       "diff");
1937                                 }
1938                                 print " | ";
1939                         }
1940                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1941                                                      file_name=>$diff{'from_file'})},
1942                                       "blame") . " | ";
1943                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1944                                                      file_name=>$diff{'from_file'})},
1945                                       "history");
1946                         print "</td>\n";
1947
1948                 } # we should not encounter Unmerged (U) or Unknown (X) status
1949                 print "</tr>\n";
1950         }
1951         print "</table>\n";
1952 }
1953
1954 sub git_patchset_body {
1955         my ($fd, $difftree, $hash, $hash_parent) = @_;
1956
1957         my $patch_idx = 0;
1958         my $in_header = 0;
1959         my $patch_found = 0;
1960         my $diffinfo;
1961
1962         print "<div class=\"patchset\">\n";
1963
1964         LINE:
1965         while (my $patch_line = <$fd>) {
1966                 chomp $patch_line;
1967
1968                 if ($patch_line =~ m/^diff /) { # "git diff" header
1969                         # beginning of patch (in patchset)
1970                         if ($patch_found) {
1971                                 # close previous patch
1972                                 print "</div>\n"; # class="patch"
1973                         } else {
1974                                 # first patch in patchset
1975                                 $patch_found = 1;
1976                         }
1977                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1978
1979                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1980                                 $diffinfo = $difftree->[$patch_idx];
1981                         } else {
1982                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1983                         }
1984                         $patch_idx++;
1985
1986                         # for now, no extended header, hence we skip empty patches
1987                         # companion to  next LINE if $in_header;
1988                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1989                                 $in_header = 1;
1990                                 next LINE;
1991                         }
1992
1993                         if ($diffinfo->{'status'} eq "A") { # added
1994                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1995                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1996                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1997                                               $diffinfo->{'to_id'}) . "(new)" .
1998                                       "</div>\n"; # class="diff_info"
1999
2000                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2001                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2002                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2003                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2004                                               $diffinfo->{'from_id'}) . "(deleted)" .
2005                                       "</div>\n"; # class="diff_info"
2006
2007                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2008                                  $diffinfo->{'status'} eq "C" || # copied
2009                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2010                                 print "<div class=\"diff_info\">" .
2011                                       file_type($diffinfo->{'from_mode'}) . ":" .
2012                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2013                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2014                                               $diffinfo->{'from_id'}) .
2015                                       " -> " .
2016                                       file_type($diffinfo->{'to_mode'}) . ":" .
2017                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2018                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2019                                               $diffinfo->{'to_id'});
2020                                 print "</div>\n"; # class="diff_info"
2021
2022                         } else { # modified, mode changed, ...
2023                                 print "<div class=\"diff_info\">" .
2024                                       file_type($diffinfo->{'from_mode'}) . ":" .
2025                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2026                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2027                                               $diffinfo->{'from_id'}) .
2028                                       " -> " .
2029                                       file_type($diffinfo->{'to_mode'}) . ":" .
2030                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2031                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2032                                               $diffinfo->{'to_id'});
2033                                 print "</div>\n"; # class="diff_info"
2034                         }
2035
2036                         #print "<div class=\"diff extended_header\">\n";
2037                         $in_header = 1;
2038                         next LINE;
2039                 } # start of patch in patchset
2040
2041
2042                 if ($in_header && $patch_line =~ m/^---/) {
2043                         #print "</div>\n"; # class="diff extended_header"
2044                         $in_header = 0;
2045
2046                         my $file = $diffinfo->{'from_file'};
2047                         $file  ||= $diffinfo->{'file'};
2048                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2049                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2050                                         -class => "list"}, esc_html($file));
2051                         $patch_line =~ s|a/.*$|a/$file|g;
2052                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2053
2054                         $patch_line = <$fd>;
2055                         chomp $patch_line;
2056
2057                         #$patch_line =~ m/^+++/;
2058                         $file    = $diffinfo->{'to_file'};
2059                         $file  ||= $diffinfo->{'file'};
2060                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2061                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2062                                         -class => "list"}, esc_html($file));
2063                         $patch_line =~ s|b/.*|b/$file|g;
2064                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2065
2066                         next LINE;
2067                 }
2068                 next LINE if $in_header;
2069
2070                 print format_diff_line($patch_line);
2071         }
2072         print "</div>\n" if $patch_found; # class="patch"
2073
2074         print "</div>\n"; # class="patchset"
2075 }
2076
2077 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2078
2079 sub git_shortlog_body {
2080         # uses global variable $project
2081         my ($revlist, $from, $to, $refs, $extra) = @_;
2082
2083         $from = 0 unless defined $from;
2084         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2085
2086         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2087         my $alternate = 1;
2088         for (my $i = $from; $i <= $to; $i++) {
2089                 my $commit = $revlist->[$i];
2090                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2091                 my $ref = format_ref_marker($refs, $commit);
2092                 my %co = parse_commit($commit);
2093                 if ($alternate) {
2094                         print "<tr class=\"dark\">\n";
2095                 } else {
2096                         print "<tr class=\"light\">\n";
2097                 }
2098                 $alternate ^= 1;
2099                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2100                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2101                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2102                       "<td>";
2103                 print format_subject_html($co{'title'}, $co{'title_short'},
2104                                           href(action=>"commit", hash=>$commit), $ref);
2105                 print "</td>\n" .
2106                       "<td class=\"link\">" .
2107                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2108                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2109                       $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2110                 print "</td>\n" .
2111                       "</tr>\n";
2112         }
2113         if (defined $extra) {
2114                 print "<tr>\n" .
2115                       "<td colspan=\"4\">$extra</td>\n" .
2116                       "</tr>\n";
2117         }
2118         print "</table>\n";
2119 }
2120
2121 sub git_history_body {
2122         # Warning: assumes constant type (blob or tree) during history
2123         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2124
2125         $from = 0 unless defined $from;
2126         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2127
2128         print "<table class=\"history\" cellspacing=\"0\">\n";
2129         my $alternate = 1;
2130         for (my $i = $from; $i <= $to; $i++) {
2131                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2132                         next;
2133                 }
2134
2135                 my $commit = $1;
2136                 my %co = parse_commit($commit);
2137                 if (!%co) {
2138                         next;
2139                 }
2140
2141                 my $ref = format_ref_marker($refs, $commit);
2142
2143                 if ($alternate) {
2144                         print "<tr class=\"dark\">\n";
2145                 } else {
2146                         print "<tr class=\"light\">\n";
2147                 }
2148                 $alternate ^= 1;
2149                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2150                       # shortlog uses      chop_str($co{'author_name'}, 10)
2151                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2152                       "<td>";
2153                 # originally git_history used chop_str($co{'title'}, 50)
2154                 print format_subject_html($co{'title'}, $co{'title_short'},
2155                                           href(action=>"commit", hash=>$commit), $ref);
2156                 print "</td>\n" .
2157                       "<td class=\"link\">" .
2158                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2159                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2160
2161                 if ($ftype eq 'blob') {
2162                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2163                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2164                         if (defined $blob_current && defined $blob_parent &&
2165                                         $blob_current ne $blob_parent) {
2166                                 print " | " .
2167                                         $cgi->a({-href => href(action=>"blobdiff",
2168                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2169                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2170                                                                file_name=>$file_name)},
2171                                                 "diff to current");
2172                         }
2173                 }
2174                 print "</td>\n" .
2175                       "</tr>\n";
2176         }
2177         if (defined $extra) {
2178                 print "<tr>\n" .
2179                       "<td colspan=\"4\">$extra</td>\n" .
2180                       "</tr>\n";
2181         }
2182         print "</table>\n";
2183 }
2184
2185 sub git_tags_body {
2186         # uses global variable $project
2187         my ($taglist, $from, $to, $extra) = @_;
2188         $from = 0 unless defined $from;
2189         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2190
2191         print "<table class=\"tags\" cellspacing=\"0\">\n";
2192         my $alternate = 1;
2193         for (my $i = $from; $i <= $to; $i++) {
2194                 my $entry = $taglist->[$i];
2195                 my %tag = %$entry;
2196                 my $comment_lines = $tag{'comment'};
2197                 my $comment = shift @$comment_lines;
2198                 my $comment_short;
2199                 if (defined $comment) {
2200                         $comment_short = chop_str($comment, 30, 5);
2201                 }
2202                 if ($alternate) {
2203                         print "<tr class=\"dark\">\n";
2204                 } else {
2205                         print "<tr class=\"light\">\n";
2206                 }
2207                 $alternate ^= 1;
2208                 print "<td><i>$tag{'age'}</i></td>\n" .
2209                       "<td>" .
2210                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2211                                -class => "list name"}, esc_html($tag{'name'})) .
2212                       "</td>\n" .
2213                       "<td>";
2214                 if (defined $comment) {
2215                         print format_subject_html($comment, $comment_short,
2216                                                   href(action=>"tag", hash=>$tag{'id'}));
2217                 }
2218                 print "</td>\n" .
2219                       "<td class=\"selflink\">";
2220                 if ($tag{'type'} eq "tag") {
2221                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2222                 } else {
2223                         print "&nbsp;";
2224                 }
2225                 print "</td>\n" .
2226                       "<td class=\"link\">" . " | " .
2227                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2228                 if ($tag{'reftype'} eq "commit") {
2229                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2230                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2231                 } elsif ($tag{'reftype'} eq "blob") {
2232                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2233                 }
2234                 print "</td>\n" .
2235                       "</tr>";
2236         }
2237         if (defined $extra) {
2238                 print "<tr>\n" .
2239                       "<td colspan=\"5\">$extra</td>\n" .
2240                       "</tr>\n";
2241         }
2242         print "</table>\n";
2243 }
2244
2245 sub git_heads_body {
2246         # uses global variable $project
2247         my ($headlist, $head, $from, $to, $extra) = @_;
2248         $from = 0 unless defined $from;
2249         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2250
2251         print "<table class=\"heads\" cellspacing=\"0\">\n";
2252         my $alternate = 1;
2253         for (my $i = $from; $i <= $to; $i++) {
2254                 my $entry = $headlist->[$i];
2255                 my %tag = %$entry;
2256                 my $curr = $tag{'id'} eq $head;
2257                 if ($alternate) {
2258                         print "<tr class=\"dark\">\n";
2259                 } else {
2260                         print "<tr class=\"light\">\n";
2261                 }
2262                 $alternate ^= 1;
2263                 print "<td><i>$tag{'age'}</i></td>\n" .
2264                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2265                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2266                                -class => "list name"},esc_html($tag{'name'})) .
2267                       "</td>\n" .
2268                       "<td class=\"link\">" .
2269                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2270                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2271                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2272                       "</td>\n" .
2273                       "</tr>";
2274         }
2275         if (defined $extra) {
2276                 print "<tr>\n" .
2277                       "<td colspan=\"3\">$extra</td>\n" .
2278                       "</tr>\n";
2279         }
2280         print "</table>\n";
2281 }
2282
2283 ## ======================================================================
2284 ## ======================================================================
2285 ## actions
2286
2287 sub git_project_list {
2288         my $order = $cgi->param('o');
2289         if (defined $order && $order !~ m/project|descr|owner|age/) {
2290                 die_error(undef, "Unknown order parameter");
2291         }
2292
2293         my @list = git_get_projects_list();
2294         my @projects;
2295         if (!@list) {
2296                 die_error(undef, "No projects found");
2297         }
2298         foreach my $pr (@list) {
2299                 my $head = git_get_head_hash($pr->{'path'});
2300                 if (!defined $head) {
2301                         next;
2302                 }
2303                 $git_dir = "$projectroot/$pr->{'path'}";
2304                 my %co = parse_commit($head);
2305                 if (!%co) {
2306                         next;
2307                 }
2308                 $pr->{'commit'} = \%co;
2309                 if (!defined $pr->{'descr'}) {
2310                         my $descr = git_get_project_description($pr->{'path'}) || "";
2311                         $pr->{'descr'} = chop_str($descr, 25, 5);
2312                 }
2313                 if (!defined $pr->{'owner'}) {
2314                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2315                 }
2316                 push @projects, $pr;
2317         }
2318
2319         git_header_html();
2320         if (-f $home_text) {
2321                 print "<div class=\"index_include\">\n";
2322                 open (my $fd, $home_text);
2323                 print <$fd>;
2324                 close $fd;
2325                 print "</div>\n";
2326         }
2327         print "<table class=\"project_list\">\n" .
2328               "<tr>\n";
2329         $order ||= "project";
2330         if ($order eq "project") {
2331                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2332                 print "<th>Project</th>\n";
2333         } else {
2334                 print "<th>" .
2335                       $cgi->a({-href => href(project=>undef, order=>'project'),
2336                                -class => "header"}, "Project") .
2337                       "</th>\n";
2338         }
2339         if ($order eq "descr") {
2340                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2341                 print "<th>Description</th>\n";
2342         } else {
2343                 print "<th>" .
2344                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2345                                -class => "header"}, "Description") .
2346                       "</th>\n";
2347         }
2348         if ($order eq "owner") {
2349                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2350                 print "<th>Owner</th>\n";
2351         } else {
2352                 print "<th>" .
2353                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2354                                -class => "header"}, "Owner") .
2355                       "</th>\n";
2356         }
2357         if ($order eq "age") {
2358                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2359                 print "<th>Last Change</th>\n";
2360         } else {
2361                 print "<th>" .
2362                       $cgi->a({-href => href(project=>undef, order=>'age'),
2363                                -class => "header"}, "Last Change") .
2364                       "</th>\n";
2365         }
2366         print "<th></th>\n" .
2367               "</tr>\n";
2368         my $alternate = 1;
2369         foreach my $pr (@projects) {
2370                 if ($alternate) {
2371                         print "<tr class=\"dark\">\n";
2372                 } else {
2373                         print "<tr class=\"light\">\n";
2374                 }
2375                 $alternate ^= 1;
2376                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2377                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2378                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2379                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2380                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2381                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2382                       "<td class=\"link\">" .
2383                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2384                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2385                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2386                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2387                       "</td>\n" .
2388                       "</tr>\n";
2389         }
2390         print "</table>\n";
2391         git_footer_html();
2392 }
2393
2394 sub git_project_index {
2395         my @projects = git_get_projects_list();
2396
2397         print $cgi->header(
2398                 -type => 'text/plain',
2399                 -charset => 'utf-8',
2400                 -content_disposition => 'inline; filename="index.aux"');
2401
2402         foreach my $pr (@projects) {
2403                 if (!exists $pr->{'owner'}) {
2404                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2405                 }
2406
2407                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2408                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2409                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2410                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2411                 $path  =~ s/ /\+/g;
2412                 $owner =~ s/ /\+/g;
2413
2414                 print "$path $owner\n";
2415         }
2416 }
2417
2418 sub git_summary {
2419         my $descr = git_get_project_description($project) || "none";
2420         my $head = git_get_head_hash($project);
2421         my %co = parse_commit($head);
2422         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2423
2424         my $owner = git_get_project_owner($project);
2425
2426         my ($reflist, $refs) = git_get_refs_list();
2427
2428         my @taglist;
2429         my @headlist;
2430         foreach my $ref (@$reflist) {
2431                 if ($ref->{'name'} =~ s!^heads/!!) {
2432                         push @headlist, $ref;
2433                 } else {
2434                         $ref->{'name'} =~ s!^tags/!!;
2435                         push @taglist, $ref;
2436                 }
2437         }
2438
2439         git_header_html();
2440         git_print_page_nav('summary','', $head);
2441
2442         print "<div class=\"title\">&nbsp;</div>\n";
2443         print "<table cellspacing=\"0\">\n" .
2444               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2445               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2446               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2447         # use per project git URL list in $projectroot/$project/cloneurl
2448         # or make project git URL from git base URL and project name
2449         my $url_tag = "URL";
2450         my @url_list = git_get_project_url_list($project);
2451         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2452         foreach my $git_url (@url_list) {
2453                 next unless $git_url;
2454                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2455                 $url_tag = "";
2456         }
2457         print "</table>\n";
2458
2459         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2460                 git_get_head_hash($project)
2461                 or die_error(undef, "Open git-rev-list failed");
2462         my @revlist = map { chomp; $_ } <$fd>;
2463         close $fd;
2464         git_print_header_div('shortlog');
2465         git_shortlog_body(\@revlist, 0, 15, $refs,
2466                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2467
2468         if (@taglist) {
2469                 git_print_header_div('tags');
2470                 git_tags_body(\@taglist, 0, 15,
2471                               $cgi->a({-href => href(action=>"tags")}, "..."));
2472         }
2473
2474         if (@headlist) {
2475                 git_print_header_div('heads');
2476                 git_heads_body(\@headlist, $head, 0, 15,
2477                                $cgi->a({-href => href(action=>"heads")}, "..."));
2478         }
2479
2480         git_footer_html();
2481 }
2482
2483 sub git_tag {
2484         my $head = git_get_head_hash($project);
2485         git_header_html();
2486         git_print_page_nav('','', $head,undef,$head);
2487         my %tag = parse_tag($hash);
2488         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2489         print "<div class=\"title_text\">\n" .
2490               "<table cellspacing=\"0\">\n" .
2491               "<tr>\n" .
2492               "<td>object</td>\n" .
2493               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2494                                $tag{'object'}) . "</td>\n" .
2495               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2496                                               $tag{'type'}) . "</td>\n" .
2497               "</tr>\n";
2498         if (defined($tag{'author'})) {
2499                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2500                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2501                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2502                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2503                         "</td></tr>\n";
2504         }
2505         print "</table>\n\n" .
2506               "</div>\n";
2507         print "<div class=\"page_body\">";
2508         my $comment = $tag{'comment'};
2509         foreach my $line (@$comment) {
2510                 print esc_html($line) . "<br/>\n";
2511         }
2512         print "</div>\n";
2513         git_footer_html();
2514 }
2515
2516 sub git_blame2 {
2517         my $fd;
2518         my $ftype;
2519
2520         my ($have_blame) = gitweb_check_feature('blame');
2521         if (!$have_blame) {
2522                 die_error('403 Permission denied', "Permission denied");
2523         }
2524         die_error('404 Not Found', "File name not defined") if (!$file_name);
2525         $hash_base ||= git_get_head_hash($project);
2526         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2527         my %co = parse_commit($hash_base)
2528                 or die_error(undef, "Reading commit failed");
2529         if (!defined $hash) {
2530                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2531                         or die_error(undef, "Error looking up file");
2532         }
2533         $ftype = git_get_type($hash);
2534         if ($ftype !~ "blob") {
2535                 die_error("400 Bad Request", "Object is not a blob");
2536         }
2537         open ($fd, "-|", git_cmd(), "blame", '--porcelain', '--',
2538               $file_name, $hash_base)
2539                 or die_error(undef, "Open git-blame failed");
2540         git_header_html();
2541         my $formats_nav =
2542                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2543                         "blob") .
2544                 " | " .
2545                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2546                         "history") .
2547                 " | " .
2548                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2549                         "HEAD");
2550         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2551         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2552         git_print_page_path($file_name, $ftype, $hash_base);
2553         my @rev_color = (qw(light2 dark2));
2554         my $num_colors = scalar(@rev_color);
2555         my $current_color = 0;
2556         my $last_rev;
2557         print <<HTML;
2558 <div class="page_body">
2559 <table class="blame">
2560 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2561 HTML
2562         my %metainfo = ();
2563         while (1) {
2564                 $_ = <$fd>;
2565                 last unless defined $_;
2566                 my ($full_rev, $lineno, $orig_lineno, $group_size) =
2567                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2568                 if (!exists $metainfo{$full_rev}) {
2569                         $metainfo{$full_rev} = {};
2570                 }
2571                 my $meta = $metainfo{$full_rev};
2572                 while (<$fd>) {
2573                         last if (s/^\t//);
2574                         if (/^(\S+) (.*)$/) {
2575                                 $meta->{$1} = $2;
2576                         }
2577                 }
2578                 my $data = $_;
2579                 my $rev = substr($full_rev, 0, 8);
2580                 my $author = $meta->{'author'};
2581                 my %date = parse_date($meta->{'author-time'},
2582                                       $meta->{'author-tz'});
2583                 my $date = $date{'iso-tz'};
2584                 if ($group_size) {
2585                         $current_color = ++$current_color % $num_colors;
2586                 }
2587                 print "<tr class=\"$rev_color[$current_color]\">\n";
2588                 if ($group_size) {
2589                         print "<td class=\"sha1\"";
2590                         print " title=\"$author, $date\"";
2591                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2592                         print ">";
2593                         print $cgi->a({-href => href(action=>"commit",
2594                                                      hash=>$full_rev,
2595                                                      file_name=>$file_name)},
2596                                       esc_html($rev));
2597                         print "</td>\n";
2598                 }
2599                 my $blamed = href(action => 'blame',
2600                                   file_name => $meta->{'filename'},
2601                                   hash_base => $full_rev);
2602                 print "<td class=\"linenr\">";
2603                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
2604                                 -id => "l$lineno",
2605                                 -class => "linenr" },
2606                               esc_html($lineno));
2607                 print "</td>";
2608                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2609                 print "</tr>\n";
2610         }
2611         print "</table>\n";
2612         print "</div>";
2613         close $fd
2614                 or print "Reading blob failed\n";
2615         git_footer_html();
2616 }
2617
2618 sub git_blame {
2619         my $fd;
2620
2621         my ($have_blame) = gitweb_check_feature('blame');
2622         if (!$have_blame) {
2623                 die_error('403 Permission denied', "Permission denied");
2624         }
2625         die_error('404 Not Found', "File name not defined") if (!$file_name);
2626         $hash_base ||= git_get_head_hash($project);
2627         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2628         my %co = parse_commit($hash_base)
2629                 or die_error(undef, "Reading commit failed");
2630         if (!defined $hash) {
2631                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2632                         or die_error(undef, "Error lookup file");
2633         }
2634         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2635                 or die_error(undef, "Open git-annotate failed");
2636         git_header_html();
2637         my $formats_nav =
2638                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2639                         "blob") .
2640                 " | " .
2641                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2642                         "history") .
2643                 " | " .
2644                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2645                         "HEAD");
2646         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2647         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2648         git_print_page_path($file_name, 'blob', $hash_base);
2649         print "<div class=\"page_body\">\n";
2650         print <<HTML;
2651 <table class="blame">
2652   <tr>
2653     <th>Commit</th>
2654     <th>Age</th>
2655     <th>Author</th>
2656     <th>Line</th>
2657     <th>Data</th>
2658   </tr>
2659 HTML
2660         my @line_class = (qw(light dark));
2661         my $line_class_len = scalar (@line_class);
2662         my $line_class_num = $#line_class;
2663         while (my $line = <$fd>) {
2664                 my $long_rev;
2665                 my $short_rev;
2666                 my $author;
2667                 my $time;
2668                 my $lineno;
2669                 my $data;
2670                 my $age;
2671                 my $age_str;
2672                 my $age_class;
2673
2674                 chomp $line;
2675                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2676
2677                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2678                         $long_rev = $1;
2679                         $author   = $2;
2680                         $time     = $3;
2681                         $lineno   = $4;
2682                         $data     = $5;
2683                 } else {
2684                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2685                         next;
2686                 }
2687                 $short_rev  = substr ($long_rev, 0, 8);
2688                 $age        = time () - $time;
2689                 $age_str    = age_string ($age);
2690                 $age_str    =~ s/ /&nbsp;/g;
2691                 $age_class  = age_class($age);
2692                 $author     = esc_html ($author);
2693                 $author     =~ s/ /&nbsp;/g;
2694
2695                 $data = untabify($data);
2696                 $data = esc_html ($data);
2697
2698                 print <<HTML;
2699   <tr class="$line_class[$line_class_num]">
2700     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2701     <td class="$age_class">$age_str</td>
2702     <td>$author</td>
2703     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2704     <td class="pre">$data</td>
2705   </tr>
2706 HTML
2707         } # while (my $line = <$fd>)
2708         print "</table>\n\n";
2709         close $fd
2710                 or print "Reading blob failed.\n";
2711         print "</div>";
2712         git_footer_html();
2713 }
2714
2715 sub git_tags {
2716         my $head = git_get_head_hash($project);
2717         git_header_html();
2718         git_print_page_nav('','', $head,undef,$head);
2719         git_print_header_div('summary', $project);
2720
2721         my ($taglist) = git_get_refs_list("tags");
2722         if (@$taglist) {
2723                 git_tags_body($taglist);
2724         }
2725         git_footer_html();
2726 }
2727
2728 sub git_heads {
2729         my $head = git_get_head_hash($project);
2730         git_header_html();
2731         git_print_page_nav('','', $head,undef,$head);
2732         git_print_header_div('summary', $project);
2733
2734         my ($headlist) = git_get_refs_list("heads");
2735         if (@$headlist) {
2736                 git_heads_body($headlist, $head);
2737         }
2738         git_footer_html();
2739 }
2740
2741 sub git_blob_plain {
2742         my $expires;
2743
2744         if (!defined $hash) {
2745                 if (defined $file_name) {
2746                         my $base = $hash_base || git_get_head_hash($project);
2747                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2748                                 or die_error(undef, "Error lookup file");
2749                 } else {
2750                         die_error(undef, "No file name defined");
2751                 }
2752         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2753                 # blobs defined by non-textual hash id's can be cached
2754                 $expires = "+1d";
2755         }
2756
2757         my $type = shift;
2758         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2759                 or die_error(undef, "Couldn't cat $file_name, $hash");
2760
2761         $type ||= blob_mimetype($fd, $file_name);
2762
2763         # save as filename, even when no $file_name is given
2764         my $save_as = "$hash";
2765         if (defined $file_name) {
2766                 $save_as = $file_name;
2767         } elsif ($type =~ m/^text\//) {
2768                 $save_as .= '.txt';
2769         }
2770
2771         print $cgi->header(
2772                 -type => "$type",
2773                 -expires=>$expires,
2774                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2775         undef $/;
2776         binmode STDOUT, ':raw';
2777         print <$fd>;
2778         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2779         $/ = "\n";
2780         close $fd;
2781 }
2782
2783 sub git_blob {
2784         my $expires;
2785
2786         if (!defined $hash) {
2787                 if (defined $file_name) {
2788                         my $base = $hash_base || git_get_head_hash($project);
2789                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2790                                 or die_error(undef, "Error lookup file");
2791                 } else {
2792                         die_error(undef, "No file name defined");
2793                 }
2794         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2795                 # blobs defined by non-textual hash id's can be cached
2796                 $expires = "+1d";
2797         }
2798
2799         my ($have_blame) = gitweb_check_feature('blame');
2800         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2801                 or die_error(undef, "Couldn't cat $file_name, $hash");
2802         my $mimetype = blob_mimetype($fd, $file_name);
2803         if ($mimetype !~ m/^text\//) {
2804                 close $fd;
2805                 return git_blob_plain($mimetype);
2806         }
2807         git_header_html(undef, $expires);
2808         my $formats_nav = '';
2809         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2810                 if (defined $file_name) {
2811                         if ($have_blame) {
2812                                 $formats_nav .=
2813                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2814                                                                hash=>$hash, file_name=>$file_name)},
2815                                                 "blame") .
2816                                         " | ";
2817                         }
2818                         $formats_nav .=
2819                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2820                                                        hash=>$hash, file_name=>$file_name)},
2821                                         "history") .
2822                                 " | " .
2823                                 $cgi->a({-href => href(action=>"blob_plain",
2824                                                        hash=>$hash, file_name=>$file_name)},
2825                                         "raw") .
2826                                 " | " .
2827                                 $cgi->a({-href => href(action=>"blob",
2828                                                        hash_base=>"HEAD", file_name=>$file_name)},
2829                                         "HEAD");
2830                 } else {
2831                         $formats_nav .=
2832                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2833                 }
2834                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2835                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2836         } else {
2837                 print "<div class=\"page_nav\">\n" .
2838                       "<br/><br/></div>\n" .
2839                       "<div class=\"title\">$hash</div>\n";
2840         }
2841         git_print_page_path($file_name, "blob", $hash_base);
2842         print "<div class=\"page_body\">\n";
2843         my $nr;
2844         while (my $line = <$fd>) {
2845                 chomp $line;
2846                 $nr++;
2847                 $line = untabify($line);
2848                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2849                        $nr, $nr, $nr, esc_html($line);
2850         }
2851         close $fd
2852                 or print "Reading blob failed.\n";
2853         print "</div>";
2854         git_footer_html();
2855 }
2856
2857 sub git_tree {
2858         my $have_snapshot = gitweb_have_snapshot();
2859
2860         if (!defined $hash_base) {
2861                 $hash_base = "HEAD";
2862         }
2863         if (!defined $hash) {
2864                 if (defined $file_name) {
2865                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2866                 } else {
2867                         $hash = $hash_base;
2868                 }
2869         }
2870         $/ = "\0";
2871         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2872                 or die_error(undef, "Open git-ls-tree failed");
2873         my @entries = map { chomp; $_ } <$fd>;
2874         close $fd or die_error(undef, "Reading tree failed");
2875         $/ = "\n";
2876
2877         my $refs = git_get_references();
2878         my $ref = format_ref_marker($refs, $hash_base);
2879         git_header_html();
2880         my $base = "";
2881         my ($have_blame) = gitweb_check_feature('blame');
2882         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2883                 my @views_nav = ();
2884                 if (defined $file_name) {
2885                         push @views_nav,
2886                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2887                                                        hash=>$hash, file_name=>$file_name)},
2888                                         "history"),
2889                                 $cgi->a({-href => href(action=>"tree",
2890                                                        hash_base=>"HEAD", file_name=>$file_name)},
2891                                         "HEAD"),
2892                 }
2893                 if ($have_snapshot) {
2894                         # FIXME: Should be available when we have no hash base as well.
2895                         push @views_nav,
2896                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2897                                         "snapshot");
2898                 }
2899                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2900                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2901         } else {
2902                 undef $hash_base;
2903                 print "<div class=\"page_nav\">\n";
2904                 print "<br/><br/></div>\n";
2905                 print "<div class=\"title\">$hash</div>\n";
2906         }
2907         if (defined $file_name) {
2908                 $base = esc_html("$file_name/");
2909         }
2910         git_print_page_path($file_name, 'tree', $hash_base);
2911         print "<div class=\"page_body\">\n";
2912         print "<table cellspacing=\"0\">\n";
2913         my $alternate = 1;
2914         foreach my $line (@entries) {
2915                 my %t = parse_ls_tree_line($line, -z => 1);
2916
2917                 if ($alternate) {
2918                         print "<tr class=\"dark\">\n";
2919                 } else {
2920                         print "<tr class=\"light\">\n";
2921                 }
2922                 $alternate ^= 1;
2923
2924                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2925
2926                 print "</tr>\n";
2927         }
2928         print "</table>\n" .
2929               "</div>";
2930         git_footer_html();
2931 }
2932
2933 sub git_snapshot {
2934         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2935         my $have_snapshot = (defined $ctype && defined $suffix);
2936         if (!$have_snapshot) {
2937                 die_error('403 Permission denied', "Permission denied");
2938         }
2939
2940         if (!defined $hash) {
2941                 $hash = git_get_head_hash($project);
2942         }
2943
2944         my $filename = basename($project) . "-$hash.tar.$suffix";
2945
2946         print $cgi->header(
2947                 -type => 'application/x-tar',
2948                 -content_encoding => $ctype,
2949                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2950                 -status => '200 OK');
2951
2952         my $git = git_cmd_str();
2953         my $name = $project;
2954         $name =~ s/\047/\047\\\047\047/g;
2955         open my $fd, "-|",
2956         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
2957                 or die_error(undef, "Execute git-tar-tree failed.");
2958         binmode STDOUT, ':raw';
2959         print <$fd>;
2960         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2961         close $fd;
2962
2963 }
2964
2965 sub git_log {
2966         my $head = git_get_head_hash($project);
2967         if (!defined $hash) {
2968                 $hash = $head;
2969         }
2970         if (!defined $page) {
2971                 $page = 0;
2972         }
2973         my $refs = git_get_references();
2974
2975         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2976         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2977                 or die_error(undef, "Open git-rev-list failed");
2978         my @revlist = map { chomp; $_ } <$fd>;
2979         close $fd;
2980
2981         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2982
2983         git_header_html();
2984         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2985
2986         if (!@revlist) {
2987                 my %co = parse_commit($hash);
2988
2989                 git_print_header_div('summary', $project);
2990                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2991         }
2992         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2993                 my $commit = $revlist[$i];
2994                 my $ref = format_ref_marker($refs, $commit);
2995                 my %co = parse_commit($commit);
2996                 next if !%co;
2997                 my %ad = parse_date($co{'author_epoch'});
2998                 git_print_header_div('commit',
2999                                "<span class=\"age\">$co{'age_string'}</span>" .
3000                                esc_html($co{'title'}) . $ref,
3001                                $commit);
3002                 print "<div class=\"title_text\">\n" .
3003                       "<div class=\"log_link\">\n" .
3004                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3005                       " | " .
3006                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3007                       " | " .
3008                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3009                       "<br/>\n" .
3010                       "</div>\n" .
3011                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3012                       "</div>\n";
3013
3014                 print "<div class=\"log_body\">\n";
3015                 git_print_simplified_log($co{'comment'});
3016                 print "</div>\n";
3017         }
3018         git_footer_html();
3019 }
3020
3021 sub git_commit {
3022         my %co = parse_commit($hash);
3023         if (!%co) {
3024                 die_error(undef, "Unknown commit object");
3025         }
3026         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3027         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3028
3029         my $parent = $co{'parent'};
3030         if (!defined $parent) {
3031                 $parent = "--root";
3032         }
3033         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3034                 or die_error(undef, "Open git-diff-tree failed");
3035         my @difftree = map { chomp; $_ } <$fd>;
3036         close $fd or die_error(undef, "Reading git-diff-tree failed");
3037
3038         # non-textual hash id's can be cached
3039         my $expires;
3040         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3041                 $expires = "+1d";
3042         }
3043         my $refs = git_get_references();
3044         my $ref = format_ref_marker($refs, $co{'id'});
3045
3046         my $have_snapshot = gitweb_have_snapshot();
3047
3048         my @views_nav = ();
3049         if (defined $file_name && defined $co{'parent'}) {
3050                 push @views_nav,
3051                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3052                                 "blame");
3053         }
3054         git_header_html(undef, $expires);
3055         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3056                            $hash, $co{'tree'}, $hash,
3057                            join (' | ', @views_nav));
3058
3059         if (defined $co{'parent'}) {
3060                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3061         } else {
3062                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3063         }
3064         print "<div class=\"title_text\">\n" .
3065               "<table cellspacing=\"0\">\n";
3066         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3067               "<tr>" .
3068               "<td></td><td> $ad{'rfc2822'}";
3069         if ($ad{'hour_local'} < 6) {
3070                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3071                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3072         } else {
3073                 printf(" (%02d:%02d %s)",
3074                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3075         }
3076         print "</td>" .
3077               "</tr>\n";
3078         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3079         print "<tr><td></td><td> $cd{'rfc2822'}" .
3080               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3081               "</td></tr>\n";
3082         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3083         print "<tr>" .
3084               "<td>tree</td>" .
3085               "<td class=\"sha1\">" .
3086               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3087                        class => "list"}, $co{'tree'}) .
3088               "</td>" .
3089               "<td class=\"link\">" .
3090               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3091                       "tree");
3092         if ($have_snapshot) {
3093                 print " | " .
3094                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3095         }
3096         print "</td>" .
3097               "</tr>\n";
3098         my $parents = $co{'parents'};
3099         foreach my $par (@$parents) {
3100                 print "<tr>" .
3101                       "<td>parent</td>" .
3102                       "<td class=\"sha1\">" .
3103                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3104                                class => "list"}, $par) .
3105                       "</td>" .
3106                       "<td class=\"link\">" .
3107                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3108                       " | " .
3109                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3110                       "</td>" .
3111                       "</tr>\n";
3112         }
3113         print "</table>".
3114               "</div>\n";
3115
3116         print "<div class=\"page_body\">\n";
3117         git_print_log($co{'comment'});
3118         print "</div>\n";
3119
3120         git_difftree_body(\@difftree, $hash, $parent);
3121
3122         git_footer_html();
3123 }
3124
3125 sub git_blobdiff {
3126         my $format = shift || 'html';
3127
3128         my $fd;
3129         my @difftree;
3130         my %diffinfo;
3131         my $expires;
3132
3133         # preparing $fd and %diffinfo for git_patchset_body
3134         # new style URI
3135         if (defined $hash_base && defined $hash_parent_base) {
3136                 if (defined $file_name) {
3137                         # read raw output
3138                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3139                                 "--", $file_name
3140                                 or die_error(undef, "Open git-diff-tree failed");
3141                         @difftree = map { chomp; $_ } <$fd>;
3142                         close $fd
3143                                 or die_error(undef, "Reading git-diff-tree failed");
3144                         @difftree
3145                                 or die_error('404 Not Found', "Blob diff not found");
3146
3147                 } elsif (defined $hash &&
3148                          $hash =~ /[0-9a-fA-F]{40}/) {
3149                         # try to find filename from $hash
3150
3151                         # read filtered raw output
3152                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3153                                 or die_error(undef, "Open git-diff-tree failed");
3154                         @difftree =
3155                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3156                                 # $hash == to_id
3157                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3158                                 map { chomp; $_ } <$fd>;
3159                         close $fd
3160                                 or die_error(undef, "Reading git-diff-tree failed");
3161                         @difftree
3162                                 or die_error('404 Not Found', "Blob diff not found");
3163
3164                 } else {
3165                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3166                 }
3167
3168                 if (@difftree > 1) {
3169                         die_error('404 Not Found', "Ambiguous blob diff specification");
3170                 }
3171
3172                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3173                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3174                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3175
3176                 $hash_parent ||= $diffinfo{'from_id'};
3177                 $hash        ||= $diffinfo{'to_id'};
3178
3179                 # non-textual hash id's can be cached
3180                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3181                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3182                         $expires = '+1d';
3183                 }
3184
3185                 # open patch output
3186                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3187                         '-p', $hash_parent_base, $hash_base,
3188                         "--", $file_name
3189                         or die_error(undef, "Open git-diff-tree failed");
3190         }
3191
3192         # old/legacy style URI
3193         if (!%diffinfo && # if new style URI failed
3194             defined $hash && defined $hash_parent) {
3195                 # fake git-diff-tree raw output
3196                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3197                 $diffinfo{'from_id'} = $hash_parent;
3198                 $diffinfo{'to_id'}   = $hash;
3199                 if (defined $file_name) {
3200                         if (defined $file_parent) {
3201                                 $diffinfo{'status'} = '2';
3202                                 $diffinfo{'from_file'} = $file_parent;
3203                                 $diffinfo{'to_file'}   = $file_name;
3204                         } else { # assume not renamed
3205                                 $diffinfo{'status'} = '1';
3206                                 $diffinfo{'from_file'} = $file_name;
3207                                 $diffinfo{'to_file'}   = $file_name;
3208                         }
3209                 } else { # no filename given
3210                         $diffinfo{'status'} = '2';
3211                         $diffinfo{'from_file'} = $hash_parent;
3212                         $diffinfo{'to_file'}   = $hash;
3213                 }
3214
3215                 # non-textual hash id's can be cached
3216                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3217                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3218                         $expires = '+1d';
3219                 }
3220
3221                 # open patch output
3222                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3223                         or die_error(undef, "Open git-diff failed");
3224         } else  {
3225                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3226                         unless %diffinfo;
3227         }
3228
3229         # header
3230         if ($format eq 'html') {
3231                 my $formats_nav =
3232                         $cgi->a({-href => href(action=>"blobdiff_plain",
3233                                                hash=>$hash, hash_parent=>$hash_parent,
3234                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3235                                                file_name=>$file_name, file_parent=>$file_parent)},
3236                                 "raw");
3237                 git_header_html(undef, $expires);
3238                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3239                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3240                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3241                 } else {
3242                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3243                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3244                 }
3245                 if (defined $file_name) {
3246                         git_print_page_path($file_name, "blob", $hash_base);
3247                 } else {
3248                         print "<div class=\"page_path\"></div>\n";
3249                 }
3250
3251         } elsif ($format eq 'plain') {
3252                 print $cgi->header(
3253                         -type => 'text/plain',
3254                         -charset => 'utf-8',
3255                         -expires => $expires,
3256                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3257
3258                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3259
3260         } else {
3261                 die_error(undef, "Unknown blobdiff format");
3262         }
3263
3264         # patch
3265         if ($format eq 'html') {
3266                 print "<div class=\"page_body\">\n";
3267
3268                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3269                 close $fd;
3270
3271                 print "</div>\n"; # class="page_body"
3272                 git_footer_html();
3273
3274         } else {
3275                 while (my $line = <$fd>) {
3276                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3277                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3278
3279                         print $line;
3280
3281                         last if $line =~ m!^\+\+\+!;
3282                 }
3283                 local $/ = undef;
3284                 print <$fd>;
3285                 close $fd;
3286         }
3287 }
3288
3289 sub git_blobdiff_plain {
3290         git_blobdiff('plain');
3291 }
3292
3293 sub git_commitdiff {
3294         my $format = shift || 'html';
3295         my %co = parse_commit($hash);
3296         if (!%co) {
3297                 die_error(undef, "Unknown commit object");
3298         }
3299         if (!defined $hash_parent) {
3300                 $hash_parent = $co{'parent'} || '--root';
3301         }
3302
3303         # read commitdiff
3304         my $fd;
3305         my @difftree;
3306         if ($format eq 'html') {
3307                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3308                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3309                         or die_error(undef, "Open git-diff-tree failed");
3310
3311                 while (chomp(my $line = <$fd>)) {
3312                         # empty line ends raw part of diff-tree output
3313                         last unless $line;
3314                         push @difftree, $line;
3315                 }
3316
3317         } elsif ($format eq 'plain') {
3318                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3319                         '-p', $hash_parent, $hash
3320                         or die_error(undef, "Open git-diff-tree failed");
3321
3322         } else {
3323                 die_error(undef, "Unknown commitdiff format");
3324         }
3325
3326         # non-textual hash id's can be cached
3327         my $expires;
3328         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3329                 $expires = "+1d";
3330         }
3331
3332         # write commit message
3333         if ($format eq 'html') {
3334                 my $refs = git_get_references();
3335                 my $ref = format_ref_marker($refs, $co{'id'});
3336                 my $formats_nav =
3337                         $cgi->a({-href => href(action=>"commitdiff_plain",
3338                                                hash=>$hash, hash_parent=>$hash_parent)},
3339                                 "raw");
3340
3341                 git_header_html(undef, $expires);
3342                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3343                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3344                 git_print_authorship(\%co);
3345                 print "<div class=\"page_body\">\n";
3346                 print "<div class=\"log\">\n";
3347                 git_print_simplified_log($co{'comment'}, 1); # skip title
3348                 print "</div>\n"; # class="log"
3349
3350         } elsif ($format eq 'plain') {
3351                 my $refs = git_get_references("tags");
3352                 my $tagname = git_get_rev_name_tags($hash);
3353                 my $filename = basename($project) . "-$hash.patch";
3354
3355                 print $cgi->header(
3356                         -type => 'text/plain',
3357                         -charset => 'utf-8',
3358                         -expires => $expires,
3359                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3360                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3361                 print <<TEXT;
3362 From: $co{'author'}
3363 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3364 Subject: $co{'title'}
3365 TEXT
3366                 print "X-Git-Tag: $tagname\n" if $tagname;
3367                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3368
3369                 foreach my $line (@{$co{'comment'}}) {
3370                         print "$line\n";
3371                 }
3372                 print "---\n\n";
3373         }
3374
3375         # write patch
3376         if ($format eq 'html') {
3377                 git_difftree_body(\@difftree, $hash, $hash_parent);
3378                 print "<br/>\n";
3379
3380                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3381                 close $fd;
3382                 print "</div>\n"; # class="page_body"
3383                 git_footer_html();
3384
3385         } elsif ($format eq 'plain') {
3386                 local $/ = undef;
3387                 print <$fd>;
3388                 close $fd
3389                         or print "Reading git-diff-tree failed\n";
3390         }
3391 }
3392
3393 sub git_commitdiff_plain {
3394         git_commitdiff('plain');
3395 }
3396
3397 sub git_history {
3398         if (!defined $hash_base) {
3399                 $hash_base = git_get_head_hash($project);
3400         }
3401         if (!defined $page) {
3402                 $page = 0;
3403         }
3404         my $ftype;
3405         my %co = parse_commit($hash_base);
3406         if (!%co) {
3407                 die_error(undef, "Unknown commit object");
3408         }
3409
3410         my $refs = git_get_references();
3411         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3412
3413         if (!defined $hash && defined $file_name) {
3414                 $hash = git_get_hash_by_path($hash_base, $file_name);
3415         }
3416         if (defined $hash) {
3417                 $ftype = git_get_type($hash);
3418         }
3419
3420         open my $fd, "-|",
3421                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3422                         or die_error(undef, "Open git-rev-list-failed");
3423         my @revlist = map { chomp; $_ } <$fd>;
3424         close $fd
3425                 or die_error(undef, "Reading git-rev-list failed");
3426
3427         my $paging_nav = '';
3428         if ($page > 0) {
3429                 $paging_nav .=
3430                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3431                                                file_name=>$file_name)},
3432                                 "first");
3433                 $paging_nav .= " &sdot; " .
3434                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3435                                                file_name=>$file_name, page=>$page-1),
3436                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3437         } else {
3438                 $paging_nav .= "first";
3439                 $paging_nav .= " &sdot; prev";
3440         }
3441         if ($#revlist >= (100 * ($page+1)-1)) {
3442                 $paging_nav .= " &sdot; " .
3443                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3444                                                file_name=>$file_name, page=>$page+1),
3445                                  -accesskey => "n", -title => "Alt-n"}, "next");
3446         } else {
3447                 $paging_nav .= " &sdot; next";
3448         }
3449         my $next_link = '';
3450         if ($#revlist >= (100 * ($page+1)-1)) {
3451                 $next_link =
3452                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3453                                                file_name=>$file_name, page=>$page+1),
3454                                  -title => "Alt-n"}, "next");
3455         }
3456
3457         git_header_html();
3458         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3459         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3460         git_print_page_path($file_name, $ftype, $hash_base);
3461
3462         git_history_body(\@revlist, ($page * 100), $#revlist,
3463                          $refs, $hash_base, $ftype, $next_link);
3464
3465         git_footer_html();
3466 }
3467
3468 sub git_search {
3469         if (!defined $searchtext) {
3470                 die_error(undef, "Text field empty");
3471         }
3472         if (!defined $hash) {
3473                 $hash = git_get_head_hash($project);
3474         }
3475         my %co = parse_commit($hash);
3476         if (!%co) {
3477                 die_error(undef, "Unknown commit object");
3478         }
3479
3480         my $commit_search = 1;
3481         my $author_search = 0;
3482         my $committer_search = 0;
3483         my $pickaxe_search = 0;
3484         if ($searchtext =~ s/^author\\://i) {
3485                 $author_search = 1;
3486         } elsif ($searchtext =~ s/^committer\\://i) {
3487                 $committer_search = 1;
3488         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3489                 $commit_search = 0;
3490                 $pickaxe_search = 1;
3491
3492                 # pickaxe may take all resources of your box and run for several minutes
3493                 # with every query - so decide by yourself how public you make this feature
3494                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3495                 if (!$have_pickaxe) {
3496                         die_error('403 Permission denied', "Permission denied");
3497                 }
3498         }
3499         git_header_html();
3500         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3501         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3502
3503         print "<table cellspacing=\"0\">\n";
3504         my $alternate = 1;
3505         if ($commit_search) {
3506                 $/ = "\0";
3507                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3508                 while (my $commit_text = <$fd>) {
3509                         if (!grep m/$searchtext/i, $commit_text) {
3510                                 next;
3511                         }
3512                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3513                                 next;
3514                         }
3515                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3516                                 next;
3517                         }
3518                         my @commit_lines = split "\n", $commit_text;
3519                         my %co = parse_commit(undef, \@commit_lines);
3520                         if (!%co) {
3521                                 next;
3522                         }
3523                         if ($alternate) {
3524                                 print "<tr class=\"dark\">\n";
3525                         } else {
3526                                 print "<tr class=\"light\">\n";
3527                         }
3528                         $alternate ^= 1;
3529                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3530                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3531                               "<td>" .
3532                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3533                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3534                         my $comment = $co{'comment'};
3535                         foreach my $line (@$comment) {
3536                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3537                                         my $lead = esc_html($1) || "";
3538                                         $lead = chop_str($lead, 30, 10);
3539                                         my $match = esc_html($2) || "";
3540                                         my $trail = esc_html($3) || "";
3541                                         $trail = chop_str($trail, 30, 10);
3542                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3543                                         print chop_str($text, 80, 5) . "<br/>\n";
3544                                 }
3545                         }
3546                         print "</td>\n" .
3547                               "<td class=\"link\">" .
3548                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3549                               " | " .
3550                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3551                         print "</td>\n" .
3552                               "</tr>\n";
3553                 }
3554                 close $fd;
3555         }
3556
3557         if ($pickaxe_search) {
3558                 $/ = "\n";
3559                 my $git_command = git_cmd_str();
3560                 open my $fd, "-|", "$git_command rev-list $hash | " .
3561                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3562                 undef %co;
3563                 my @files;
3564                 while (my $line = <$fd>) {
3565                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3566                                 my %set;
3567                                 $set{'file'} = $6;
3568                                 $set{'from_id'} = $3;
3569                                 $set{'to_id'} = $4;
3570                                 $set{'id'} = $set{'to_id'};
3571                                 if ($set{'id'} =~ m/0{40}/) {
3572                                         $set{'id'} = $set{'from_id'};
3573                                 }
3574                                 if ($set{'id'} =~ m/0{40}/) {
3575                                         next;
3576                                 }
3577                                 push @files, \%set;
3578                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3579                                 if (%co) {
3580                                         if ($alternate) {
3581                                                 print "<tr class=\"dark\">\n";
3582                                         } else {
3583                                                 print "<tr class=\"light\">\n";
3584                                         }
3585                                         $alternate ^= 1;
3586                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3587                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3588                                               "<td>" .
3589                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3590                                                       -class => "list subject"},
3591                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3592                                         while (my $setref = shift @files) {
3593                                                 my %set = %$setref;
3594                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3595                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3596                                                               -class => "list"},
3597                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3598                                                       "<br/>\n";
3599                                         }
3600                                         print "</td>\n" .
3601                                               "<td class=\"link\">" .
3602                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3603                                               " | " .
3604                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3605                                         print "</td>\n" .
3606                                               "</tr>\n";
3607                                 }
3608                                 %co = parse_commit($1);
3609                         }
3610                 }
3611                 close $fd;
3612         }
3613         print "</table>\n";
3614         git_footer_html();
3615 }
3616
3617 sub git_shortlog {
3618         my $head = git_get_head_hash($project);
3619         if (!defined $hash) {
3620                 $hash = $head;
3621         }
3622         if (!defined $page) {
3623                 $page = 0;
3624         }
3625         my $refs = git_get_references();
3626
3627         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3628         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3629                 or die_error(undef, "Open git-rev-list failed");
3630         my @revlist = map { chomp; $_ } <$fd>;
3631         close $fd;
3632
3633         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3634         my $next_link = '';
3635         if ($#revlist >= (100 * ($page+1)-1)) {
3636                 $next_link =
3637                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3638                                  -title => "Alt-n"}, "next");
3639         }
3640
3641
3642         git_header_html();
3643         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3644         git_print_header_div('summary', $project);
3645
3646         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3647
3648         git_footer_html();
3649 }
3650
3651 ## ......................................................................
3652 ## feeds (RSS, OPML)
3653
3654 sub git_rss {
3655         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3656         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3657                 or die_error(undef, "Open git-rev-list failed");
3658         my @revlist = map { chomp; $_ } <$fd>;
3659         close $fd or die_error(undef, "Reading git-rev-list failed");
3660         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3661         print <<XML;
3662 <?xml version="1.0" encoding="utf-8"?>
3663 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3664 <channel>
3665 <title>$project $my_uri $my_url</title>
3666 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3667 <description>$project log</description>
3668 <language>en</language>
3669 XML
3670
3671         for (my $i = 0; $i <= $#revlist; $i++) {
3672                 my $commit = $revlist[$i];
3673                 my %co = parse_commit($commit);
3674                 # we read 150, we always show 30 and the ones more recent than 48 hours
3675                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3676                         last;
3677                 }
3678                 my %cd = parse_date($co{'committer_epoch'});
3679                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3680                         $co{'parent'}, $co{'id'}
3681                         or next;
3682                 my @difftree = map { chomp; $_ } <$fd>;
3683                 close $fd
3684                         or next;
3685                 print "<item>\n" .
3686                       "<title>" .
3687                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3688                       "</title>\n" .
3689                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3690                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3691                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3692                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3693                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3694                       "<content:encoded>" .
3695                       "<![CDATA[\n";
3696                 my $comment = $co{'comment'};
3697                 foreach my $line (@$comment) {
3698                         $line = to_utf8($line);
3699                         print "$line<br/>\n";
3700                 }
3701                 print "<br/>\n";
3702                 foreach my $line (@difftree) {
3703                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3704                                 next;
3705                         }
3706                         my $file = esc_html(unquote($7));
3707                         $file = to_utf8($file);
3708                         print "$file<br/>\n";
3709                 }
3710                 print "]]>\n" .
3711                       "</content:encoded>\n" .
3712                       "</item>\n";
3713         }
3714         print "</channel></rss>";
3715 }
3716
3717 sub git_opml {
3718         my @list = git_get_projects_list();
3719
3720         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3721         print <<XML;
3722 <?xml version="1.0" encoding="utf-8"?>
3723 <opml version="1.0">
3724 <head>
3725   <title>$site_name Git OPML Export</title>
3726 </head>
3727 <body>
3728 <outline text="git RSS feeds">
3729 XML
3730
3731         foreach my $pr (@list) {
3732                 my %proj = %$pr;
3733                 my $head = git_get_head_hash($proj{'path'});
3734                 if (!defined $head) {
3735                         next;
3736                 }
3737                 $git_dir = "$projectroot/$proj{'path'}";
3738                 my %co = parse_commit($head);
3739                 if (!%co) {
3740                         next;
3741                 }
3742
3743                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3744                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3745                 my $html = "$my_url?p=$proj{'path'};a=summary";
3746                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3747         }
3748         print <<XML;
3749 </outline>
3750 </body>
3751 </opml>
3752 XML
3753 }