gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # filename of html text to include at top of each page
  45 our $site_header = "++GITWEB_SITE_HEADER++";
  46 # html text to include at home page
  47 our $home_text = "++GITWEB_HOMETEXT++";
  48 # filename of html text to include at bottom of each page
  49 our $site_footer = "++GITWEB_SITE_FOOTER++";
  50
  51 # URI of stylesheets
  52 our @stylesheets = ("++GITWEB_CSS++");
  53 our $stylesheet;
  54 # default is not to define style sheet, but it can be overwritten later
  55 undef $stylesheet;
  56
  57 # URI of 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 # source of projects list
  63 our $projects_list = "++GITWEB_LIST++";
  64
  65 # show repository only if this file exists
  66 # (only effective if this variable evaluates to true)
  67 our $export_ok = "++GITWEB_EXPORT_OK++";
  68
  69 # only allow viewing of repositories also shown on the overview page
  70 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  71
  72 # list of git base URLs used for URL to where fetch project from,
  73 # i.e. full URL is "$git_base_url/$project"
  74 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  75
  76 # default blob_plain mimetype and default charset for text/plain blob
  77 our $default_blob_plain_mimetype = 'text/plain';
  78 our $default_text_plain_charset  = undef;
  79
  80 # file to use for guessing MIME types before trying /etc/mime.types
  81 # (relative to the current git repository)
  82 our $mimetypes_file = undef;
  83
  84 # You define site-wide feature defaults here; override them with
  85 # $GITWEB_CONFIG as necessary.
  86 our %feature = (
  87         # feature => {
  88         #       'sub' => feature-sub (subroutine),
  89         #       'override' => allow-override (boolean),
  90         #       'default' => [ default options...] (array reference)}
  91         #
  92         # if feature is overridable (it means that allow-override has true value,
  93         # then feature-sub will be called with default options as parameters;
  94         # return value of feature-sub indicates if to enable specified feature
  95         #
  96         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  97
  98         'blame' => {
  99                 'sub' => \&feature_blame,
 100                 'override' => 0,
 101                 'default' => [0]},
 102
 103         'snapshot' => {
 104                 'sub' => \&feature_snapshot,
 105                 'override' => 0,
 106                 #         => [content-encoding, suffix, program]
 107                 'default' => ['x-gzip', 'gz', 'gzip']},
 108
 109         'pickaxe' => {
 110                 'sub' => \&feature_pickaxe,
 111                 'override' => 0,
 112                 'default' => [1]},
 113 );
 114
 115 sub gitweb_check_feature {
 116         my ($name) = @_;
 117         return unless exists $feature{$name};
 118         my ($sub, $override, @defaults) = (
 119                 $feature{$name}{'sub'},
 120                 $feature{$name}{'override'},
 121                 @{$feature{$name}{'default'}});
 122         if (!$override) { return @defaults; }
 123         return $sub->(@defaults);
 124 }
 125
 126 # To enable system wide have in $GITWEB_CONFIG
 127 # $feature{'blame'}{'default'} = [1];
 128 # To have project specific config enable override in $GITWEB_CONFIG
 129 # $feature{'blame'}{'override'} = 1;
 130 # and in project config gitweb.blame = 0|1;
 131
 132 sub feature_blame {
 133         my ($val) = git_get_project_config('blame', '--bool');
 134
 135         if ($val eq 'true') {
 136                 return 1;
 137         } elsif ($val eq 'false') {
 138                 return 0;
 139         }
 140
 141         return $_[0];
 142 }
 143
 144 # To disable system wide have in $GITWEB_CONFIG
 145 # $feature{'snapshot'}{'default'} = [undef];
 146 # To have project specific config enable override in $GITWEB_CONFIG
 147 # $feature{'blame'}{'override'} = 1;
 148 # and in project config  gitweb.snapshot = none|gzip|bzip2
 149
 150 sub feature_snapshot {
 151         my ($ctype, $suffix, $command) = @_;
 152
 153         my ($val) = git_get_project_config('snapshot');
 154
 155         if ($val eq 'gzip') {
 156                 return ('x-gzip', 'gz', 'gzip');
 157         } elsif ($val eq 'bzip2') {
 158                 return ('x-bzip2', 'bz2', 'bzip2');
 159         } elsif ($val eq 'none') {
 160                 return ();
 161         }
 162
 163         return ($ctype, $suffix, $command);
 164 }
 165
 166 sub gitweb_have_snapshot {
 167         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 168         my $have_snapshot = (defined $ctype && defined $suffix);
 169
 170         return $have_snapshot;
 171 }
 172
 173 # To enable system wide have in $GITWEB_CONFIG
 174 # $feature{'pickaxe'}{'default'} = [1];
 175 # To have project specific config enable override in $GITWEB_CONFIG
 176 # $feature{'pickaxe'}{'override'} = 1;
 177 # and in project config gitweb.pickaxe = 0|1;
 178
 179 sub feature_pickaxe {
 180         my ($val) = git_get_project_config('pickaxe', '--bool');
 181
 182         if ($val eq 'true') {
 183                 return (1);
 184         } elsif ($val eq 'false') {
 185                 return (0);
 186         }
 187
 188         return ($_[0]);
 189 }
 190
 191 # checking HEAD file with -e is fragile if the repository was
 192 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 193 # and then pruned.
 194 sub check_head_link {
 195         my ($dir) = @_;
 196         my $headfile = "$dir/HEAD";
 197         return ((-e $headfile) ||
 198                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 199 }
 200
 201 sub check_export_ok {
 202         my ($dir) = @_;
 203         return (check_head_link($dir) &&
 204                 (!$export_ok || -e "$dir/$export_ok"));
 205 }
 206
 207 # rename detection options for git-diff and git-diff-tree
 208 # - default is '-M', with the cost proportional to
 209 #   (number of removed files) * (number of new files).
 210 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 211 #   (number of changed files + number of removed files) * (number of new files)
 212 # - even more costly is '-C', '--find-copies-harder' with cost
 213 #   (number of files in the original tree) * (number of new files)
 214 # - one might want to include '-B' option, e.g. '-B', '-M'
 215 our @diff_opts = ('-M'); # taken from git_commit
 216
 217 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 218 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 219
 220 # version of the core git binary
 221 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 222
 223 $projects_list ||= $projectroot;
 224
 225 # ======================================================================
 226 # input validation and dispatch
 227 our $action = $cgi->param('a');
 228 if (defined $action) {
 229         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 230                 die_error(undef, "Invalid action parameter");
 231         }
 232 }
 233
 234 # parameters which are pathnames
 235 our $project = $cgi->param('p');
 236 if (defined $project) {
 237         if (!validate_pathname($project) ||
 238             !(-d "$projectroot/$project") ||
 239             !check_head_link("$projectroot/$project") ||
 240             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 241             ($strict_export && !project_in_list($project))) {
 242                 undef $project;
 243                 die_error(undef, "No such project");
 244         }
 245 }
 246
 247 our $file_name = $cgi->param('f');
 248 if (defined $file_name) {
 249         if (!validate_pathname($file_name)) {
 250                 die_error(undef, "Invalid file parameter");
 251         }
 252 }
 253
 254 our $file_parent = $cgi->param('fp');
 255 if (defined $file_parent) {
 256         if (!validate_pathname($file_parent)) {
 257                 die_error(undef, "Invalid file parent parameter");
 258         }
 259 }
 260
 261 # parameters which are refnames
 262 our $hash = $cgi->param('h');
 263 if (defined $hash) {
 264         if (!validate_refname($hash)) {
 265                 die_error(undef, "Invalid hash parameter");
 266         }
 267 }
 268
 269 our $hash_parent = $cgi->param('hp');
 270 if (defined $hash_parent) {
 271         if (!validate_refname($hash_parent)) {
 272                 die_error(undef, "Invalid hash parent parameter");
 273         }
 274 }
 275
 276 our $hash_base = $cgi->param('hb');
 277 if (defined $hash_base) {
 278         if (!validate_refname($hash_base)) {
 279                 die_error(undef, "Invalid hash base parameter");
 280         }
 281 }
 282
 283 our $hash_parent_base = $cgi->param('hpb');
 284 if (defined $hash_parent_base) {
 285         if (!validate_refname($hash_parent_base)) {
 286                 die_error(undef, "Invalid hash parent base parameter");
 287         }
 288 }
 289
 290 # other parameters
 291 our $page = $cgi->param('pg');
 292 if (defined $page) {
 293         if ($page =~ m/[^0-9]/) {
 294                 die_error(undef, "Invalid page parameter");
 295         }
 296 }
 297
 298 our $searchtext = $cgi->param('s');
 299 if (defined $searchtext) {
 300         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 301                 die_error(undef, "Invalid search parameter");
 302         }
 303         $searchtext = quotemeta $searchtext;
 304 }
 305
 306 # now read PATH_INFO and use it as alternative to parameters
 307 sub evaluate_path_info {
 308         return if defined $project;
 309         my $path_info = $ENV{"PATH_INFO"};
 310         return if !$path_info;
 311         $path_info =~ s,^/+,,;
 312         return if !$path_info;
 313         # find which part of PATH_INFO is project
 314         $project = $path_info;
 315         $project =~ s,/+$,,;
 316         while ($project && !check_head_link("$projectroot/$project")) {
 317                 $project =~ s,/*[^/]*$,,;
 318         }
 319         # validate project
 320         $project = validate_pathname($project);
 321         if (!$project ||
 322             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 323             ($strict_export && !project_in_list($project))) {
 324                 undef $project;
 325                 return;
 326         }
 327         # do not change any parameters if an action is given using the query string
 328         return if $action;
 329         $path_info =~ s,^$project/*,,;
 330         my ($refname, $pathname) = split(/:/, $path_info, 2);
 331         if (defined $pathname) {
 332                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 333                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 334                 $pathname =~ s,^/+,,;
 335                 if (!$pathname || substr($pathname, -1) eq "/") {
 336                         $action  ||= "tree";
 337                         $pathname =~ s,/$,,;
 338                 } else {
 339                         $action  ||= "blob_plain";
 340                 }
 341                 $hash_base ||= validate_refname($refname);
 342                 $file_name ||= validate_pathname($pathname);
 343         } elsif (defined $refname) {
 344                 # we got "project.git/branch"
 345                 $action ||= "shortlog";
 346                 $hash   ||= validate_refname($refname);
 347         }
 348 }
 349 evaluate_path_info();
 350
 351 # path to the current git repository
 352 our $git_dir;
 353 $git_dir = "$projectroot/$project" if $project;
 354
 355 # dispatch
 356 my %actions = (
 357         "blame" => \&git_blame2,
 358         "blobdiff" => \&git_blobdiff,
 359         "blobdiff_plain" => \&git_blobdiff_plain,
 360         "blob" => \&git_blob,
 361         "blob_plain" => \&git_blob_plain,
 362         "commitdiff" => \&git_commitdiff,
 363         "commitdiff_plain" => \&git_commitdiff_plain,
 364         "commit" => \&git_commit,
 365         "heads" => \&git_heads,
 366         "history" => \&git_history,
 367         "log" => \&git_log,
 368         "rss" => \&git_rss,
 369         "search" => \&git_search,
 370         "shortlog" => \&git_shortlog,
 371         "summary" => \&git_summary,
 372         "tag" => \&git_tag,
 373         "tags" => \&git_tags,
 374         "tree" => \&git_tree,
 375         "snapshot" => \&git_snapshot,
 376         # those below don't need $project
 377         "opml" => \&git_opml,
 378         "project_list" => \&git_project_list,
 379         "project_index" => \&git_project_index,
 380 );
 381
 382 if (defined $project) {
 383         $action ||= 'summary';
 384 } else {
 385         $action ||= 'project_list';
 386 }
 387 if (!defined($actions{$action})) {
 388         die_error(undef, "Unknown action");
 389 }
 390 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 391     !$project) {
 392         die_error(undef, "Project needed");
 393 }
 394 $actions{$action}->();
 395 exit;
 396
 397 ## ======================================================================
 398 ## action links
 399
 400 sub href(%) {
 401         my %params = @_;
 402
 403         my @mapping = (
 404                 project => "p",
 405                 action => "a",
 406                 file_name => "f",
 407                 file_parent => "fp",
 408                 hash => "h",
 409                 hash_parent => "hp",
 410                 hash_base => "hb",
 411                 hash_parent_base => "hpb",
 412                 page => "pg",
 413                 order => "o",
 414                 searchtext => "s",
 415         );
 416         my %mapping = @mapping;
 417
 418         $params{'project'} = $project unless exists $params{'project'};
 419
 420         my @result = ();
 421         for (my $i = 0; $i < @mapping; $i += 2) {
 422                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 423                 if (defined $params{$name}) {
 424                         push @result, $symbol . "=" . esc_param($params{$name});
 425                 }
 426         }
 427         return "$my_uri?" . join(';', @result);
 428 }
 429
 430
 431 ## ======================================================================
 432 ## validation, quoting/unquoting and escaping
 433
 434 sub validate_pathname {
 435         my $input = shift || return undef;
 436
 437         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 438         # at the beginning, at the end, and between slashes.
 439         # also this catches doubled slashes
 440         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 441                 return undef;
 442         }
 443         # no null characters
 444         if ($input =~ m!\0!) {
 445                 return undef;
 446         }
 447         return $input;
 448 }
 449
 450 sub validate_refname {
 451         my $input = shift || return undef;
 452
 453         # textual hashes are O.K.
 454         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 455                 return $input;
 456         }
 457         # it must be correct pathname
 458         $input = validate_pathname($input)
 459                 or return undef;
 460         # restrictions on ref name according to git-check-ref-format
 461         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 462                 return undef;
 463         }
 464         return $input;
 465 }
 466
 467 # quote unsafe chars, but keep the slash, even when it's not
 468 # correct, but quoted slashes look too horrible in bookmarks
 469 sub esc_param {
 470         my $str = shift;
 471         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 472         $str =~ s/\+/%2B/g;
 473         $str =~ s/ /\+/g;
 474         return $str;
 475 }
 476
 477 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 478 sub esc_url {
 479         my $str = shift;
 480         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 481         $str =~ s/\+/%2B/g;
 482         $str =~ s/ /\+/g;
 483         return $str;
 484 }
 485
 486 # replace invalid utf8 character with SUBSTITUTION sequence
 487 sub esc_html {
 488         my $str = shift;
 489         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 490         $str = escapeHTML($str);
 491         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 492         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 493         return $str;
 494 }
 495
 496 # git may return quoted and escaped filenames
 497 sub unquote {
 498         my $str = shift;
 499         if ($str =~ m/^"(.*)"$/) {
 500                 $str = $1;
 501                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 502         }
 503         return $str;
 504 }
 505
 506 # escape tabs (convert tabs to spaces)
 507 sub untabify {
 508         my $line = shift;
 509
 510         while ((my $pos = index($line, "\t")) != -1) {
 511                 if (my $count = (8 - ($pos % 8))) {
 512                         my $spaces = ' ' x $count;
 513                         $line =~ s/\t/$spaces/;
 514                 }
 515         }
 516
 517         return $line;
 518 }
 519
 520 sub project_in_list {
 521         my $project = shift;
 522         my @list = git_get_projects_list();
 523         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 524 }
 525
 526 ## ----------------------------------------------------------------------
 527 ## HTML aware string manipulation
 528
 529 sub chop_str {
 530         my $str = shift;
 531         my $len = shift;
 532         my $add_len = shift || 10;
 533
 534         # allow only $len chars, but don't cut a word if it would fit in $add_len
 535         # if it doesn't fit, cut it if it's still longer than the dots we would add
 536         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 537         my $body = $1;
 538         my $tail = $2;
 539         if (length($tail) > 4) {
 540                 $tail = " ...";
 541                 $body =~ s/&[^;]*$//; # remove chopped character entities
 542         }
 543         return "$body$tail";
 544 }
 545
 546 ## ----------------------------------------------------------------------
 547 ## functions returning short strings
 548
 549 # CSS class for given age value (in seconds)
 550 sub age_class {
 551         my $age = shift;
 552
 553         if ($age < 60*60*2) {
 554                 return "age0";
 555         } elsif ($age < 60*60*24*2) {
 556                 return "age1";
 557         } else {
 558                 return "age2";
 559         }
 560 }
 561
 562 # convert age in seconds to "nn units ago" string
 563 sub age_string {
 564         my $age = shift;
 565         my $age_str;
 566
 567         if ($age > 60*60*24*365*2) {
 568                 $age_str = (int $age/60/60/24/365);
 569                 $age_str .= " years ago";
 570         } elsif ($age > 60*60*24*(365/12)*2) {
 571                 $age_str = int $age/60/60/24/(365/12);
 572                 $age_str .= " months ago";
 573         } elsif ($age > 60*60*24*7*2) {
 574                 $age_str = int $age/60/60/24/7;
 575                 $age_str .= " weeks ago";
 576         } elsif ($age > 60*60*24*2) {
 577                 $age_str = int $age/60/60/24;
 578                 $age_str .= " days ago";
 579         } elsif ($age > 60*60*2) {
 580                 $age_str = int $age/60/60;
 581                 $age_str .= " hours ago";
 582         } elsif ($age > 60*2) {
 583                 $age_str = int $age/60;
 584                 $age_str .= " min ago";
 585         } elsif ($age > 2) {
 586                 $age_str = int $age;
 587                 $age_str .= " sec ago";
 588         } else {
 589                 $age_str .= " right now";
 590         }
 591         return $age_str;
 592 }
 593
 594 # convert file mode in octal to symbolic file mode string
 595 sub mode_str {
 596         my $mode = oct shift;
 597
 598         if (S_ISDIR($mode & S_IFMT)) {
 599                 return 'drwxr-xr-x';
 600         } elsif (S_ISLNK($mode)) {
 601                 return 'lrwxrwxrwx';
 602         } elsif (S_ISREG($mode)) {
 603                 # git cares only about the executable bit
 604                 if ($mode & S_IXUSR) {
 605                         return '-rwxr-xr-x';
 606                 } else {
 607                         return '-rw-r--r--';
 608                 };
 609         } else {
 610                 return '----------';
 611         }
 612 }
 613
 614 # convert file mode in octal to file type string
 615 sub file_type {
 616         my $mode = shift;
 617
 618         if ($mode !~ m/^[0-7]+$/) {
 619                 return $mode;
 620         } else {
 621                 $mode = oct $mode;
 622         }
 623
 624         if (S_ISDIR($mode & S_IFMT)) {
 625                 return "directory";
 626         } elsif (S_ISLNK($mode)) {
 627                 return "symlink";
 628         } elsif (S_ISREG($mode)) {
 629                 return "file";
 630         } else {
 631                 return "unknown";
 632         }
 633 }
 634
 635 ## ----------------------------------------------------------------------
 636 ## functions returning short HTML fragments, or transforming HTML fragments
 637 ## which don't beling to other sections
 638
 639 # format line of commit message or tag comment
 640 sub format_log_line_html {
 641         my $line = shift;
 642
 643         $line = esc_html($line);
 644         $line =~ s/ /&nbsp;/g;
 645         if ($line =~ m/([0-9a-fA-F]{40})/) {
 646                 my $hash_text = $1;
 647                 if (git_get_type($hash_text) eq "commit") {
 648                         my $link =
 649                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 650                                         -class => "text"}, $hash_text);
 651                         $line =~ s/$hash_text/$link/;
 652                 }
 653         }
 654         return $line;
 655 }
 656
 657 # format marker of refs pointing to given object
 658 sub format_ref_marker {
 659         my ($refs, $id) = @_;
 660         my $markers = '';
 661
 662         if (defined $refs->{$id}) {
 663                 foreach my $ref (@{$refs->{$id}}) {
 664                         my ($type, $name) = qw();
 665                         # e.g. tags/v2.6.11 or heads/next
 666                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 667                                 $type = $1;
 668                                 $name = $2;
 669                         } else {
 670                                 $type = "ref";
 671                                 $name = $ref;
 672                         }
 673
 674                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 675                 }
 676         }
 677
 678         if ($markers) {
 679                 return ' <span class="refs">'. $markers . '</span>';
 680         } else {
 681                 return "";
 682         }
 683 }
 684
 685 # format, perhaps shortened and with markers, title line
 686 sub format_subject_html {
 687         my ($long, $short, $href, $extra) = @_;
 688         $extra = '' unless defined($extra);
 689
 690         if (length($short) < length($long)) {
 691                 return $cgi->a({-href => $href, -class => "list subject",
 692                                 -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 693                        esc_html($short) . $extra);
 694         } else {
 695                 return $cgi->a({-href => $href, -class => "list subject"},
 696                        esc_html($long)  . $extra);
 697         }
 698 }
 699
 700 sub format_diff_line {
 701         my $line = shift;
 702         my $char = substr($line, 0, 1);
 703         my $diff_class = "";
 704
 705         chomp $line;
 706
 707         if ($char eq '+') {
 708                 $diff_class = " add";
 709         } elsif ($char eq "-") {
 710                 $diff_class = " rem";
 711         } elsif ($char eq "@") {
 712                 $diff_class = " chunk_header";
 713         } elsif ($char eq "\\") {
 714                 $diff_class = " incomplete";
 715         }
 716         $line = untabify($line);
 717         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 718 }
 719
 720 ## ----------------------------------------------------------------------
 721 ## git utility subroutines, invoking git commands
 722
 723 # returns path to the core git executable and the --git-dir parameter as list
 724 sub git_cmd {
 725         return $GIT, '--git-dir='.$git_dir;
 726 }
 727
 728 # returns path to the core git executable and the --git-dir parameter as string
 729 sub git_cmd_str {
 730         return join(' ', git_cmd());
 731 }
 732
 733 # get HEAD ref of given project as hash
 734 sub git_get_head_hash {
 735         my $project = shift;
 736         my $o_git_dir = $git_dir;
 737         my $retval = undef;
 738         $git_dir = "$projectroot/$project";
 739         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 740                 my $head = <$fd>;
 741                 close $fd;
 742                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 743                         $retval = $1;
 744                 }
 745         }
 746         if (defined $o_git_dir) {
 747                 $git_dir = $o_git_dir;
 748         }
 749         return $retval;
 750 }
 751
 752 # get type of given object
 753 sub git_get_type {
 754         my $hash = shift;
 755
 756         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 757         my $type = <$fd>;
 758         close $fd or return;
 759         chomp $type;
 760         return $type;
 761 }
 762
 763 sub git_get_project_config {
 764         my ($key, $type) = @_;
 765
 766         return unless ($key);
 767         $key =~ s/^gitweb\.//;
 768         return if ($key =~ m/\W/);
 769
 770         my @x = (git_cmd(), 'repo-config');
 771         if (defined $type) { push @x, $type; }
 772         push @x, "--get";
 773         push @x, "gitweb.$key";
 774         my $val = qx(@x);
 775         chomp $val;
 776         return ($val);
 777 }
 778
 779 # get hash of given path at given ref
 780 sub git_get_hash_by_path {
 781         my $base = shift;
 782         my $path = shift || return undef;
 783         my $type = shift;
 784
 785         $path =~ s,/+$,,;
 786
 787         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 788                 or die_error(undef, "Open git-ls-tree failed");
 789         my $line = <$fd>;
 790         close $fd or return undef;
 791
 792         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 793         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 794         if (defined $type && $type ne $2) {
 795                 # type doesn't match
 796                 return undef;
 797         }
 798         return $3;
 799 }
 800
 801 ## ......................................................................
 802 ## git utility functions, directly accessing git repository
 803
 804 sub git_get_project_description {
 805         my $path = shift;
 806
 807         open my $fd, "$projectroot/$path/description" or return undef;
 808         my $descr = <$fd>;
 809         close $fd;
 810         chomp $descr;
 811         return $descr;
 812 }
 813
 814 sub git_get_project_url_list {
 815         my $path = shift;
 816
 817         open my $fd, "$projectroot/$path/cloneurl" or return;
 818         my @git_project_url_list = map { chomp; $_ } <$fd>;
 819         close $fd;
 820
 821         return wantarray ? @git_project_url_list : \@git_project_url_list;
 822 }
 823
 824 sub git_get_projects_list {
 825         my @list;
 826
 827         if (-d $projects_list) {
 828                 # search in directory
 829                 my $dir = $projects_list;
 830                 my $pfxlen = length("$dir");
 831
 832                 File::Find::find({
 833                         follow_fast => 1, # follow symbolic links
 834                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 835                         wanted => sub {
 836                                 # skip project-list toplevel, if we get it.
 837                                 return if (m!^[/.]$!);
 838                                 # only directories can be git repositories
 839                                 return unless (-d $_);
 840
 841                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 842                                 # we check related file in $projectroot
 843                                 if (check_export_ok("$projectroot/$subdir")) {
 844                                         push @list, { path => $subdir };
 845                                         $File::Find::prune = 1;
 846                                 }
 847                         },
 848                 }, "$dir");
 849
 850         } elsif (-f $projects_list) {
 851                 # read from file(url-encoded):
 852                 # 'git%2Fgit.git Linus+Torvalds'
 853                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 854                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 855                 open my ($fd), $projects_list or return;
 856                 while (my $line = <$fd>) {
 857                         chomp $line;
 858                         my ($path, $owner) = split ' ', $line;
 859                         $path = unescape($path);
 860                         $owner = unescape($owner);
 861                         if (!defined $path) {
 862                                 next;
 863                         }
 864                         if (check_export_ok("$projectroot/$path")) {
 865                                 my $pr = {
 866                                         path => $path,
 867                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 868                                 };
 869                                 push @list, $pr
 870                         }
 871                 }
 872                 close $fd;
 873         }
 874         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 875         return @list;
 876 }
 877
 878 sub git_get_project_owner {
 879         my $project = shift;
 880         my $owner;
 881
 882         return undef unless $project;
 883
 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         if (-f $projects_list) {
 889                 open (my $fd , $projects_list);
 890                 while (my $line = <$fd>) {
 891                         chomp $line;
 892                         my ($pr, $ow) = split ' ', $line;
 893                         $pr = unescape($pr);
 894                         $ow = unescape($ow);
 895                         if ($pr eq $project) {
 896                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 897                                 last;
 898                         }
 899                 }
 900                 close $fd;
 901         }
 902         if (!defined $owner) {
 903                 $owner = get_file_owner("$projectroot/$project");
 904         }
 905
 906         return $owner;
 907 }
 908
 909 sub git_get_references {
 910         my $type = shift || "";
 911         my %refs;
 912         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 913         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 914         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 915                 or return;
 916
 917         while (my $line = <$fd>) {
 918                 chomp $line;
 919                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 920                         if (defined $refs{$1}) {
 921                                 push @{$refs{$1}}, $2;
 922                         } else {
 923                                 $refs{$1} = [ $2 ];
 924                         }
 925                 }
 926         }
 927         close $fd or return;
 928         return \%refs;
 929 }
 930
 931 sub git_get_rev_name_tags {
 932         my $hash = shift || return undef;
 933
 934         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 935                 or return;
 936         my $name_rev = <$fd>;
 937         close $fd;
 938
 939         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 940                 return $1;
 941         } else {
 942                 # catches also '$hash undefined' output
 943                 return undef;
 944         }
 945 }
 946
 947 ## ----------------------------------------------------------------------
 948 ## parse to hash functions
 949
 950 sub parse_date {
 951         my $epoch = shift;
 952         my $tz = shift || "-0000";
 953
 954         my %date;
 955         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 956         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 957         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 958         $date{'hour'} = $hour;
 959         $date{'minute'} = $min;
 960         $date{'mday'} = $mday;
 961         $date{'day'} = $days[$wday];
 962         $date{'month'} = $months[$mon];
 963         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 964                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 965         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 966                              $mday, $months[$mon], $hour ,$min;
 967
 968         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 969         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 970         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 971         $date{'hour_local'} = $hour;
 972         $date{'minute_local'} = $min;
 973         $date{'tz_local'} = $tz;
 974         return %date;
 975 }
 976
 977 sub parse_tag {
 978         my $tag_id = shift;
 979         my %tag;
 980         my @comment;
 981
 982         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 983         $tag{'id'} = $tag_id;
 984         while (my $line = <$fd>) {
 985                 chomp $line;
 986                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 987                         $tag{'object'} = $1;
 988                 } elsif ($line =~ m/^type (.+)$/) {
 989                         $tag{'type'} = $1;
 990                 } elsif ($line =~ m/^tag (.+)$/) {
 991                         $tag{'name'} = $1;
 992                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 993                         $tag{'author'} = $1;
 994                         $tag{'epoch'} = $2;
 995                         $tag{'tz'} = $3;
 996                 } elsif ($line =~ m/--BEGIN/) {
 997                         push @comment, $line;
 998                         last;
 999                 } elsif ($line eq "") {
1000                         last;
1001                 }
1002         }
1003         push @comment, <$fd>;
1004         $tag{'comment'} = \@comment;
1005         close $fd or return;
1006         if (!defined $tag{'name'}) {
1007                 return
1008         };
1009         return %tag
1010 }
1011
1012 sub parse_commit {
1013         my $commit_id = shift;
1014         my $commit_text = shift;
1015
1016         my @commit_lines;
1017         my %co;
1018
1019         if (defined $commit_text) {
1020                 @commit_lines = @$commit_text;
1021         } else {
1022                 $/ = "\0";
1023                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1024                         or return;
1025                 @commit_lines = split '\n', <$fd>;
1026                 close $fd or return;
1027                 $/ = "\n";
1028                 pop @commit_lines;
1029         }
1030         my $header = shift @commit_lines;
1031         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1032                 return;
1033         }
1034         ($co{'id'}, my @parents) = split ' ', $header;
1035         $co{'parents'} = \@parents;
1036         $co{'parent'} = $parents[0];
1037         while (my $line = shift @commit_lines) {
1038                 last if $line eq "\n";
1039                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1040                         $co{'tree'} = $1;
1041                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1042                         $co{'author'} = $1;
1043                         $co{'author_epoch'} = $2;
1044                         $co{'author_tz'} = $3;
1045                         if ($co{'author'} =~ m/^([^<]+) </) {
1046                                 $co{'author_name'} = $1;
1047                         } else {
1048                                 $co{'author_name'} = $co{'author'};
1049                         }
1050                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1051                         $co{'committer'} = $1;
1052                         $co{'committer_epoch'} = $2;
1053                         $co{'committer_tz'} = $3;
1054                         $co{'committer_name'} = $co{'committer'};
1055                         $co{'committer_name'} =~ s/ <.*//;
1056                 }
1057         }
1058         if (!defined $co{'tree'}) {
1059                 return;
1060         };
1061
1062         foreach my $title (@commit_lines) {
1063                 $title =~ s/^    //;
1064                 if ($title ne "") {
1065                         $co{'title'} = chop_str($title, 80, 5);
1066                         # remove leading stuff of merges to make the interesting part visible
1067                         if (length($title) > 50) {
1068                                 $title =~ s/^Automatic //;
1069                                 $title =~ s/^merge (of|with) /Merge ... /i;
1070                                 if (length($title) > 50) {
1071                                         $title =~ s/(http|rsync):\/\///;
1072                                 }
1073                                 if (length($title) > 50) {
1074                                         $title =~ s/(master|www|rsync)\.//;
1075                                 }
1076                                 if (length($title) > 50) {
1077                                         $title =~ s/kernel.org:?//;
1078                                 }
1079                                 if (length($title) > 50) {
1080                                         $title =~ s/\/pub\/scm//;
1081                                 }
1082                         }
1083                         $co{'title_short'} = chop_str($title, 50, 5);
1084                         last;
1085                 }
1086         }
1087         # remove added spaces
1088         foreach my $line (@commit_lines) {
1089                 $line =~ s/^    //;
1090         }
1091         $co{'comment'} = \@commit_lines;
1092
1093         my $age = time - $co{'committer_epoch'};
1094         $co{'age'} = $age;
1095         $co{'age_string'} = age_string($age);
1096         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1097         if ($age > 60*60*24*7*2) {
1098                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1099                 $co{'age_string_age'} = $co{'age_string'};
1100         } else {
1101                 $co{'age_string_date'} = $co{'age_string'};
1102                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1103         }
1104         return %co;
1105 }
1106
1107 # parse ref from ref_file, given by ref_id, with given type
1108 sub parse_ref {
1109         my $ref_file = shift;
1110         my $ref_id = shift;
1111         my $type = shift || git_get_type($ref_id);
1112         my %ref_item;
1113
1114         $ref_item{'type'} = $type;
1115         $ref_item{'id'} = $ref_id;
1116         $ref_item{'epoch'} = 0;
1117         $ref_item{'age'} = "unknown";
1118         if ($type eq "tag") {
1119                 my %tag = parse_tag($ref_id);
1120                 $ref_item{'comment'} = $tag{'comment'};
1121                 if ($tag{'type'} eq "commit") {
1122                         my %co = parse_commit($tag{'object'});
1123                         $ref_item{'epoch'} = $co{'committer_epoch'};
1124                         $ref_item{'age'} = $co{'age_string'};
1125                 } elsif (defined($tag{'epoch'})) {
1126                         my $age = time - $tag{'epoch'};
1127                         $ref_item{'epoch'} = $tag{'epoch'};
1128                         $ref_item{'age'} = age_string($age);
1129                 }
1130                 $ref_item{'reftype'} = $tag{'type'};
1131                 $ref_item{'name'} = $tag{'name'};
1132                 $ref_item{'refid'} = $tag{'object'};
1133         } elsif ($type eq "commit"){
1134                 my %co = parse_commit($ref_id);
1135                 $ref_item{'reftype'} = "commit";
1136                 $ref_item{'name'} = $ref_file;
1137                 $ref_item{'title'} = $co{'title'};
1138                 $ref_item{'refid'} = $ref_id;
1139                 $ref_item{'epoch'} = $co{'committer_epoch'};
1140                 $ref_item{'age'} = $co{'age_string'};
1141         } else {
1142                 $ref_item{'reftype'} = $type;
1143                 $ref_item{'name'} = $ref_file;
1144                 $ref_item{'refid'} = $ref_id;
1145         }
1146
1147         return %ref_item;
1148 }
1149
1150 # parse line of git-diff-tree "raw" output
1151 sub parse_difftree_raw_line {
1152         my $line = shift;
1153         my %res;
1154
1155         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1156         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1157         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1158                 $res{'from_mode'} = $1;
1159                 $res{'to_mode'} = $2;
1160                 $res{'from_id'} = $3;
1161                 $res{'to_id'} = $4;
1162                 $res{'status'} = $5;
1163                 $res{'similarity'} = $6;
1164                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1165                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1166                 } else {
1167                         $res{'file'} = unquote($7);
1168                 }
1169         }
1170         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1171         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1172                 $res{'commit'} = $1;
1173         }
1174
1175         return wantarray ? %res : \%res;
1176 }
1177
1178 # parse line of git-ls-tree output
1179 sub parse_ls_tree_line ($;%) {
1180         my $line = shift;
1181         my %opts = @_;
1182         my %res;
1183
1184         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1185         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1186
1187         $res{'mode'} = $1;
1188         $res{'type'} = $2;
1189         $res{'hash'} = $3;
1190         if ($opts{'-z'}) {
1191                 $res{'name'} = $4;
1192         } else {
1193                 $res{'name'} = unquote($4);
1194         }
1195
1196         return wantarray ? %res : \%res;
1197 }
1198
1199 ## ......................................................................
1200 ## parse to array of hashes functions
1201
1202 sub git_get_refs_list {
1203         my $type = shift || "";
1204         my %refs;
1205         my @reflist;
1206
1207         my @refs;
1208         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1209                 or return;
1210         while (my $line = <$fd>) {
1211                 chomp $line;
1212                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1213                         if (defined $refs{$1}) {
1214                                 push @{$refs{$1}}, $2;
1215                         } else {
1216                                 $refs{$1} = [ $2 ];
1217                         }
1218
1219                         if (! $4) { # unpeeled, direct reference
1220                                 push @refs, { hash => $1, name => $3 }; # without type
1221                         } elsif ($3 eq $refs[-1]{'name'}) {
1222                                 # most likely a tag is followed by its peeled
1223                                 # (deref) one, and when that happens we know the
1224                                 # previous one was of type 'tag'.
1225                                 $refs[-1]{'type'} = "tag";
1226                         }
1227                 }
1228         }
1229         close $fd;
1230
1231         foreach my $ref (@refs) {
1232                 my $ref_file = $ref->{'name'};
1233                 my $ref_id   = $ref->{'hash'};
1234
1235                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1236                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1237
1238                 push @reflist, \%ref_item;
1239         }
1240         # sort refs by age
1241         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1242         return (\@reflist, \%refs);
1243 }
1244
1245 ## ----------------------------------------------------------------------
1246 ## filesystem-related functions
1247
1248 sub get_file_owner {
1249         my $path = shift;
1250
1251         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1252         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1253         if (!defined $gcos) {
1254                 return undef;
1255         }
1256         my $owner = $gcos;
1257         $owner =~ s/[,;].*$//;
1258         return decode("utf8", $owner, Encode::FB_DEFAULT);
1259 }
1260
1261 ## ......................................................................
1262 ## mimetype related functions
1263
1264 sub mimetype_guess_file {
1265         my $filename = shift;
1266         my $mimemap = shift;
1267         -r $mimemap or return undef;
1268
1269         my %mimemap;
1270         open(MIME, $mimemap) or return undef;
1271         while (<MIME>) {
1272                 next if m/^#/; # skip comments
1273                 my ($mime, $exts) = split(/\t+/);
1274                 if (defined $exts) {
1275                         my @exts = split(/\s+/, $exts);
1276                         foreach my $ext (@exts) {
1277                                 $mimemap{$ext} = $mime;
1278                         }
1279                 }
1280         }
1281         close(MIME);
1282
1283         $filename =~ /\.([^.]*)$/;
1284         return $mimemap{$1};
1285 }
1286
1287 sub mimetype_guess {
1288         my $filename = shift;
1289         my $mime;
1290         $filename =~ /\./ or return undef;
1291
1292         if ($mimetypes_file) {
1293                 my $file = $mimetypes_file;
1294                 if ($file !~ m!^/!) { # if it is relative path
1295                         # it is relative to project
1296                         $file = "$projectroot/$project/$file";
1297                 }
1298                 $mime = mimetype_guess_file($filename, $file);
1299         }
1300         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1301         return $mime;
1302 }
1303
1304 sub blob_mimetype {
1305         my $fd = shift;
1306         my $filename = shift;
1307
1308         if ($filename) {
1309                 my $mime = mimetype_guess($filename);
1310                 $mime and return $mime;
1311         }
1312
1313         # just in case
1314         return $default_blob_plain_mimetype unless $fd;
1315
1316         if (-T $fd) {
1317                 return 'text/plain' .
1318                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1319         } elsif (! $filename) {
1320                 return 'application/octet-stream';
1321         } elsif ($filename =~ m/\.png$/i) {
1322                 return 'image/png';
1323         } elsif ($filename =~ m/\.gif$/i) {
1324                 return 'image/gif';
1325         } elsif ($filename =~ m/\.jpe?g$/i) {
1326                 return 'image/jpeg';
1327         } else {
1328                 return 'application/octet-stream';
1329         }
1330 }
1331
1332 ## ======================================================================
1333 ## functions printing HTML: header, footer, error page
1334
1335 sub git_header_html {
1336         my $status = shift || "200 OK";
1337         my $expires = shift;
1338
1339         my $title = "$site_name git";
1340         if (defined $project) {
1341                 $title .= " - $project";
1342                 if (defined $action) {
1343                         $title .= "/$action";
1344                         if (defined $file_name) {
1345                                 $title .= " - " . esc_html($file_name);
1346                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1347                                         $title .= "/";
1348                                 }
1349                         }
1350                 }
1351         }
1352         my $content_type;
1353         # require explicit support from the UA if we are to send the page as
1354         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1355         # we have to do this because MSIE sometimes globs '*/*', pretending to
1356         # support xhtml+xml but choking when it gets what it asked for.
1357         if (defined $cgi->http('HTTP_ACCEPT') &&
1358             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1359             $cgi->Accept('application/xhtml+xml') != 0) {
1360                 $content_type = 'application/xhtml+xml';
1361         } else {
1362                 $content_type = 'text/html';
1363         }
1364         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1365                            -status=> $status, -expires => $expires);
1366         print <<EOF;
1367 <?xml version="1.0" encoding="utf-8"?>
1368 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1369 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1370 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1371 <!-- git core binaries version $git_version -->
1372 <head>
1373 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1374 <meta name="generator" content="gitweb/$version git/$git_version"/>
1375 <meta name="robots" content="index, nofollow"/>
1376 <title>$title</title>
1377 EOF
1378 # print out each stylesheet that exist
1379         if (defined $stylesheet) {
1380 #provides backwards capability for those people who define style sheet in a config file
1381                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1382         } else {
1383                 foreach my $stylesheet (@stylesheets) {
1384                         next unless $stylesheet;
1385                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1386                 }
1387         }
1388         if (defined $project) {
1389                 printf('<link rel="alternate" title="%s log" '.
1390                        'href="%s" type="application/rss+xml"/>'."\n",
1391                        esc_param($project), href(action=>"rss"));
1392         } else {
1393                 printf('<link rel="alternate" title="%s projects list" '.
1394                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1395                        $site_name, href(project=>undef, action=>"project_index"));
1396                 printf('<link rel="alternate" title="%s projects logs" '.
1397                        'href="%s" type="text/x-opml"/>'."\n",
1398                        $site_name, href(project=>undef, action=>"opml"));
1399         }
1400         if (defined $favicon) {
1401                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1402         }
1403
1404         print "</head>\n" .
1405               "<body>\n";
1406
1407         if (-f $site_header) {
1408                 open (my $fd, $site_header);
1409                 print <$fd>;
1410                 close $fd;
1411         }
1412
1413         print "<div class=\"page_header\">\n" .
1414               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1415               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1416               "</a>\n";
1417         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1418         if (defined $project) {
1419                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1420                 if (defined $action) {
1421                         print " / $action";
1422                 }
1423                 print "\n";
1424                 if (!defined $searchtext) {
1425                         $searchtext = "";
1426                 }
1427                 my $search_hash;
1428                 if (defined $hash_base) {
1429                         $search_hash = $hash_base;
1430                 } elsif (defined $hash) {
1431                         $search_hash = $hash;
1432                 } else {
1433                         $search_hash = "HEAD";
1434                 }
1435                 $cgi->param("a", "search");
1436                 $cgi->param("h", $search_hash);
1437                 print $cgi->startform(-method => "get", -action => $my_uri) .
1438                       "<div class=\"search\">\n" .
1439                       $cgi->hidden(-name => "p") . "\n" .
1440                       $cgi->hidden(-name => "a") . "\n" .
1441                       $cgi->hidden(-name => "h") . "\n" .
1442                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1443                       "</div>" .
1444                       $cgi->end_form() . "\n";
1445         }
1446         print "</div>\n";
1447 }
1448
1449 sub git_footer_html {
1450         print "<div class=\"page_footer\">\n";
1451         if (defined $project) {
1452                 my $descr = git_get_project_description($project);
1453                 if (defined $descr) {
1454                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1455                 }
1456                 print $cgi->a({-href => href(action=>"rss"),
1457                               -class => "rss_logo"}, "RSS") . "\n";
1458         } else {
1459                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1460                               -class => "rss_logo"}, "OPML") . " ";
1461                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1462                               -class => "rss_logo"}, "TXT") . "\n";
1463         }
1464         print "</div>\n" ;
1465
1466         if (-f $site_footer) {
1467                 open (my $fd, $site_footer);
1468                 print <$fd>;
1469                 close $fd;
1470         }
1471
1472         print "</body>\n" .
1473               "</html>";
1474 }
1475
1476 sub die_error {
1477         my $status = shift || "403 Forbidden";
1478         my $error = shift || "Malformed query, file missing or permission denied";
1479
1480         git_header_html($status);
1481         print <<EOF;
1482 <div class="page_body">
1483 <br /><br />
1484 $status - $error
1485 <br />
1486 </div>
1487 EOF
1488         git_footer_html();
1489         exit;
1490 }
1491
1492 ## ----------------------------------------------------------------------
1493 ## functions printing or outputting HTML: navigation
1494
1495 sub git_print_page_nav {
1496         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1497         $extra = '' if !defined $extra; # pager or formats
1498
1499         my @navs = qw(summary shortlog log commit commitdiff tree);
1500         if ($suppress) {
1501                 @navs = grep { $_ ne $suppress } @navs;
1502         }
1503
1504         my %arg = map { $_ => {action=>$_} } @navs;
1505         if (defined $head) {
1506                 for (qw(commit commitdiff)) {
1507                         $arg{$_}{hash} = $head;
1508                 }
1509                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1510                         for (qw(shortlog log)) {
1511                                 $arg{$_}{hash} = $head;
1512                         }
1513                 }
1514         }
1515         $arg{tree}{hash} = $treehead if defined $treehead;
1516         $arg{tree}{hash_base} = $treebase if defined $treebase;
1517
1518         print "<div class=\"page_nav\">\n" .
1519                 (join " | ",
1520                  map { $_ eq $current ?
1521                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1522                  } @navs);
1523         print "<br/>\n$extra<br/>\n" .
1524               "</div>\n";
1525 }
1526
1527 sub format_paging_nav {
1528         my ($action, $hash, $head, $page, $nrevs) = @_;
1529         my $paging_nav;
1530
1531
1532         if ($hash ne $head || $page) {
1533                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1534         } else {
1535                 $paging_nav .= "HEAD";
1536         }
1537
1538         if ($page > 0) {
1539                 $paging_nav .= " &sdot; " .
1540                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1541                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1542         } else {
1543                 $paging_nav .= " &sdot; prev";
1544         }
1545
1546         if ($nrevs >= (100 * ($page+1)-1)) {
1547                 $paging_nav .= " &sdot; " .
1548                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1549                                  -accesskey => "n", -title => "Alt-n"}, "next");
1550         } else {
1551                 $paging_nav .= " &sdot; next";
1552         }
1553
1554         return $paging_nav;
1555 }
1556
1557 ## ......................................................................
1558 ## functions printing or outputting HTML: div
1559
1560 sub git_print_header_div {
1561         my ($action, $title, $hash, $hash_base) = @_;
1562         my %args = ();
1563
1564         $args{action} = $action;
1565         $args{hash} = $hash if $hash;
1566         $args{hash_base} = $hash_base if $hash_base;
1567
1568         print "<div class=\"header\">\n" .
1569               $cgi->a({-href => href(%args), -class => "title"},
1570               $title ? $title : $action) .
1571               "\n</div>\n";
1572 }
1573
1574 #sub git_print_authorship (\%) {
1575 sub git_print_authorship {
1576         my $co = shift;
1577
1578         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1579         print "<div class=\"author_date\">" .
1580               esc_html($co->{'author_name'}) .
1581               " [$ad{'rfc2822'}";
1582         if ($ad{'hour_local'} < 6) {
1583                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1584                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1585         } else {
1586                 printf(" (%02d:%02d %s)",
1587                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1588         }
1589         print "]</div>\n";
1590 }
1591
1592 sub git_print_page_path {
1593         my $name = shift;
1594         my $type = shift;
1595         my $hb = shift;
1596
1597         if (!defined $name) {
1598                 print "<div class=\"page_path\">/</div>\n";
1599         } else {
1600                 my @dirname = split '/', $name;
1601                 my $basename = pop @dirname;
1602                 my $fullname = '';
1603
1604                 print "<div class=\"page_path\">";
1605                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1606                               -title => 'tree root'}, "[$project]");
1607                 print " / ";
1608                 foreach my $dir (@dirname) {
1609                         $fullname .= ($fullname ? '/' : '') . $dir;
1610                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1611                                                      hash_base=>$hb),
1612                                       -title => $fullname}, esc_html($dir));
1613                         print " / ";
1614                 }
1615                 if (defined $type && $type eq 'blob') {
1616                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1617                                                      hash_base=>$hb),
1618                                       -title => $name}, esc_html($basename));
1619                 } elsif (defined $type && $type eq 'tree') {
1620                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1621                                                      hash_base=>$hb),
1622                                       -title => $name}, esc_html($basename));
1623                 } else {
1624                         print esc_html($basename);
1625                 }
1626                 print "<br/></div>\n";
1627         }
1628 }
1629
1630 # sub git_print_log (\@;%) {
1631 sub git_print_log ($;%) {
1632         my $log = shift;
1633         my %opts = @_;
1634
1635         if ($opts{'-remove_title'}) {
1636                 # remove title, i.e. first line of log
1637                 shift @$log;
1638         }
1639         # remove leading empty lines
1640         while (defined $log->[0] && $log->[0] eq "") {
1641                 shift @$log;
1642         }
1643
1644         # print log
1645         my $signoff = 0;
1646         my $empty = 0;
1647         foreach my $line (@$log) {
1648                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1649                         $signoff = 1;
1650                         $empty = 0;
1651                         if (! $opts{'-remove_signoff'}) {
1652                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1653                                 next;
1654                         } else {
1655                                 # remove signoff lines
1656                                 next;
1657                         }
1658                 } else {
1659                         $signoff = 0;
1660                 }
1661
1662                 # print only one empty line
1663                 # do not print empty line after signoff
1664                 if ($line eq "") {
1665                         next if ($empty || $signoff);
1666                         $empty = 1;
1667                 } else {
1668                         $empty = 0;
1669                 }
1670
1671                 print format_log_line_html($line) . "<br/>\n";
1672         }
1673
1674         if ($opts{'-final_empty_line'}) {
1675                 # end with single empty line
1676                 print "<br/>\n" unless $empty;
1677         }
1678 }
1679
1680 sub git_print_simplified_log {
1681         my $log = shift;
1682         my $remove_title = shift;
1683
1684         git_print_log($log,
1685                 -final_empty_line=> 1,
1686                 -remove_title => $remove_title);
1687 }
1688
1689 # print tree entry (row of git_tree), but without encompassing <tr> element
1690 sub git_print_tree_entry {
1691         my ($t, $basedir, $hash_base, $have_blame) = @_;
1692
1693         my %base_key = ();
1694         $base_key{hash_base} = $hash_base if defined $hash_base;
1695
1696         # The format of a table row is: mode list link.  Where mode is
1697         # the mode of the entry, list is the name of the entry, an href,
1698         # and link is the action links of the entry.
1699
1700         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1701         if ($t->{'type'} eq "blob") {
1702                 print "<td class=\"list\">" .
1703                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1704                                                file_name=>"$basedir$t->{'name'}", %base_key),
1705                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1706                 print "<td class=\"link\">";
1707                 if ($have_blame) {
1708                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1709                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1710                                       "blame");
1711                 }
1712                 if (defined $hash_base) {
1713                         if ($have_blame) {
1714                                 print " | ";
1715                         }
1716                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1717                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1718                                       "history");
1719                 }
1720                 print " | " .
1721                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1722                                                file_name=>"$basedir$t->{'name'}")},
1723                                 "raw");
1724                 print "</td>\n";
1725
1726         } elsif ($t->{'type'} eq "tree") {
1727                 print "<td class=\"list\">";
1728                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1729                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1730                               esc_html($t->{'name'}));
1731                 print "</td>\n";
1732                 print "<td class=\"link\">";
1733                 if (defined $hash_base) {
1734                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1735                                                      file_name=>"$basedir$t->{'name'}")},
1736                                       "history");
1737                 }
1738                 print "</td>\n";
1739         }
1740 }
1741
1742 ## ......................................................................
1743 ## functions printing large fragments of HTML
1744
1745 sub git_difftree_body {
1746         my ($difftree, $hash, $parent) = @_;
1747
1748         print "<div class=\"list_head\">\n";
1749         if ($#{$difftree} > 10) {
1750                 print(($#{$difftree} + 1) . " files changed:\n");
1751         }
1752         print "</div>\n";
1753
1754         print "<table class=\"diff_tree\">\n";
1755         my $alternate = 1;
1756         my $patchno = 0;
1757         foreach my $line (@{$difftree}) {
1758                 my %diff = parse_difftree_raw_line($line);
1759
1760                 if ($alternate) {
1761                         print "<tr class=\"dark\">\n";
1762                 } else {
1763                         print "<tr class=\"light\">\n";
1764                 }
1765                 $alternate ^= 1;
1766
1767                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1768                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1769                 if ($diff{'to_mode'} ne ('0' x 6)) {
1770                         $to_mode_oct = oct $diff{'to_mode'};
1771                         if (S_ISREG($to_mode_oct)) { # only for regular file
1772                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1773                         }
1774                         $to_file_type = file_type($diff{'to_mode'});
1775                 }
1776                 if ($diff{'from_mode'} ne ('0' x 6)) {
1777                         $from_mode_oct = oct $diff{'from_mode'};
1778                         if (S_ISREG($to_mode_oct)) { # only for regular file
1779                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1780                         }
1781                         $from_file_type = file_type($diff{'from_mode'});
1782                 }
1783
1784                 if ($diff{'status'} eq "A") { # created
1785                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1786                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1787                         $mode_chng   .= "]</span>";
1788                         print "<td>";
1789                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1790                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1791                                        -class => "list"}, esc_html($diff{'file'}));
1792                         print "</td>\n";
1793                         print "<td>$mode_chng</td>\n";
1794                         print "<td class=\"link\">";
1795                         if ($action eq 'commitdiff') {
1796                                 # link to patch
1797                                 $patchno++;
1798                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1799                         }
1800                         print "</td>\n";
1801
1802                 } elsif ($diff{'status'} eq "D") { # deleted
1803                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1804                         print "<td>";
1805                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1806                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1807                                        -class => "list"}, esc_html($diff{'file'}));
1808                         print "</td>\n";
1809                         print "<td>$mode_chng</td>\n";
1810                         print "<td class=\"link\">";
1811                         if ($action eq 'commitdiff') {
1812                                 # link to patch
1813                                 $patchno++;
1814                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1815                                 print " | ";
1816                         }
1817                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1818                                                      file_name=>$diff{'file'})},
1819                                       "blame") . " | ";
1820                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1821                                                      file_name=>$diff{'file'})},
1822                                       "history");
1823                         print "</td>\n";
1824
1825                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1826                         my $mode_chnge = "";
1827                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1828                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1829                                 if ($from_file_type != $to_file_type) {
1830                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1831                                 }
1832                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1833                                         if ($from_mode_str && $to_mode_str) {
1834                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1835                                         } elsif ($to_mode_str) {
1836                                                 $mode_chnge .= " mode: $to_mode_str";
1837                                         }
1838                                 }
1839                                 $mode_chnge .= "]</span>\n";
1840                         }
1841                         print "<td>";
1842                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1843                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1844                                        -class => "list"}, esc_html($diff{'file'}));
1845                         print "</td>\n";
1846                         print "<td>$mode_chnge</td>\n";
1847                         print "<td class=\"link\">";
1848                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1849                                 if ($action eq 'commitdiff') {
1850                                         # link to patch
1851                                         $patchno++;
1852                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1853                                 } else {
1854                                         print $cgi->a({-href => href(action=>"blobdiff",
1855                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1856                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1857                                                                      file_name=>$diff{'file'})},
1858                                                       "diff");
1859                                 }
1860                                 print " | ";
1861                         }
1862                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1863                                                      file_name=>$diff{'file'})},
1864                                       "blame") . " | ";
1865                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1866                                                      file_name=>$diff{'file'})},
1867                                       "history");
1868                         print "</td>\n";
1869
1870                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1871                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1872                         my $nstatus = $status_name{$diff{'status'}};
1873                         my $mode_chng = "";
1874                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1875                                 # mode also for directories, so we cannot use $to_mode_str
1876                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1877                         }
1878                         print "<td>" .
1879                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1880                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1881                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1882                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1883                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1884                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1885                                       -class => "list"}, esc_html($diff{'from_file'})) .
1886                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1887                               "<td class=\"link\">";
1888                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1889                                 if ($action eq 'commitdiff') {
1890                                         # link to patch
1891                                         $patchno++;
1892                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1893                                 } else {
1894                                         print $cgi->a({-href => href(action=>"blobdiff",
1895                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1896                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1897                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1898                                                       "diff");
1899                                 }
1900                                 print " | ";
1901                         }
1902                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1903                                                      file_name=>$diff{'from_file'})},
1904                                       "blame") . " | ";
1905                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1906                                                      file_name=>$diff{'from_file'})},
1907                                       "history");
1908                         print "</td>\n";
1909
1910                 } # we should not encounter Unmerged (U) or Unknown (X) status
1911                 print "</tr>\n";
1912         }
1913         print "</table>\n";
1914 }
1915
1916 sub git_patchset_body {
1917         my ($fd, $difftree, $hash, $hash_parent) = @_;
1918
1919         my $patch_idx = 0;
1920         my $in_header = 0;
1921         my $patch_found = 0;
1922         my $diffinfo;
1923
1924         print "<div class=\"patchset\">\n";
1925
1926         LINE:
1927         while (my $patch_line = <$fd>) {
1928                 chomp $patch_line;
1929
1930                 if ($patch_line =~ m/^diff /) { # "git diff" header
1931                         # beginning of patch (in patchset)
1932                         if ($patch_found) {
1933                                 # close previous patch
1934                                 print "</div>\n"; # class="patch"
1935                         } else {
1936                                 # first patch in patchset
1937                                 $patch_found = 1;
1938                         }
1939                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1940
1941                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1942                                 $diffinfo = $difftree->[$patch_idx];
1943                         } else {
1944                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1945                         }
1946                         $patch_idx++;
1947
1948                         # for now, no extended header, hence we skip empty patches
1949                         # companion to  next LINE if $in_header;
1950                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1951                                 $in_header = 1;
1952                                 next LINE;
1953                         }
1954
1955                         if ($diffinfo->{'status'} eq "A") { # added
1956                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1957                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1958                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1959                                               $diffinfo->{'to_id'}) . "(new)" .
1960                                       "</div>\n"; # class="diff_info"
1961
1962                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1963                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1964                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1965                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1966                                               $diffinfo->{'from_id'}) . "(deleted)" .
1967                                       "</div>\n"; # class="diff_info"
1968
1969                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1970                                  $diffinfo->{'status'} eq "C" || # copied
1971                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1972                                 print "<div class=\"diff_info\">" .
1973                                       file_type($diffinfo->{'from_mode'}) . ":" .
1974                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1975                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1976                                               $diffinfo->{'from_id'}) .
1977                                       " -> " .
1978                                       file_type($diffinfo->{'to_mode'}) . ":" .
1979                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1980                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1981                                               $diffinfo->{'to_id'});
1982                                 print "</div>\n"; # class="diff_info"
1983
1984                         } else { # modified, mode changed, ...
1985                                 print "<div class=\"diff_info\">" .
1986                                       file_type($diffinfo->{'from_mode'}) . ":" .
1987                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1988                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1989                                               $diffinfo->{'from_id'}) .
1990                                       " -> " .
1991                                       file_type($diffinfo->{'to_mode'}) . ":" .
1992                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1993                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1994                                               $diffinfo->{'to_id'});
1995                                 print "</div>\n"; # class="diff_info"
1996                         }
1997
1998                         #print "<div class=\"diff extended_header\">\n";
1999                         $in_header = 1;
2000                         next LINE;
2001                 } # start of patch in patchset
2002
2003
2004                 if ($in_header && $patch_line =~ m/^---/) {
2005                         #print "</div>\n"; # class="diff extended_header"
2006                         $in_header = 0;
2007
2008                         my $file = $diffinfo->{'from_file'};
2009                         $file  ||= $diffinfo->{'file'};
2010                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2011                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2012                                         -class => "list"}, esc_html($file));
2013                         $patch_line =~ s|a/.*$|a/$file|g;
2014                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2015
2016                         $patch_line = <$fd>;
2017                         chomp $patch_line;
2018
2019                         #$patch_line =~ m/^+++/;
2020                         $file    = $diffinfo->{'to_file'};
2021                         $file  ||= $diffinfo->{'file'};
2022                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2023                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2024                                         -class => "list"}, esc_html($file));
2025                         $patch_line =~ s|b/.*|b/$file|g;
2026                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2027
2028                         next LINE;
2029                 }
2030                 next LINE if $in_header;
2031
2032                 print format_diff_line($patch_line);
2033         }
2034         print "</div>\n" if $patch_found; # class="patch"
2035
2036         print "</div>\n"; # class="patchset"
2037 }
2038
2039 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2040
2041 sub git_shortlog_body {
2042         # uses global variable $project
2043         my ($revlist, $from, $to, $refs, $extra) = @_;
2044
2045         $from = 0 unless defined $from;
2046         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2047
2048         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2049         my $alternate = 1;
2050         for (my $i = $from; $i <= $to; $i++) {
2051                 my $commit = $revlist->[$i];
2052                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2053                 my $ref = format_ref_marker($refs, $commit);
2054                 my %co = parse_commit($commit);
2055                 if ($alternate) {
2056                         print "<tr class=\"dark\">\n";
2057                 } else {
2058                         print "<tr class=\"light\">\n";
2059                 }
2060                 $alternate ^= 1;
2061                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2062                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2063                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2064                       "<td>";
2065                 print format_subject_html($co{'title'}, $co{'title_short'},
2066                                           href(action=>"commit", hash=>$commit), $ref);
2067                 print "</td>\n" .
2068                       "<td class=\"link\">" .
2069                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2070                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2071                       $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2072                 print "</td>\n" .
2073                       "</tr>\n";
2074         }
2075         if (defined $extra) {
2076                 print "<tr>\n" .
2077                       "<td colspan=\"4\">$extra</td>\n" .
2078                       "</tr>\n";
2079         }
2080         print "</table>\n";
2081 }
2082
2083 sub git_history_body {
2084         # Warning: assumes constant type (blob or tree) during history
2085         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2086
2087         $from = 0 unless defined $from;
2088         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2089
2090         print "<table class=\"history\" cellspacing=\"0\">\n";
2091         my $alternate = 1;
2092         for (my $i = $from; $i <= $to; $i++) {
2093                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2094                         next;
2095                 }
2096
2097                 my $commit = $1;
2098                 my %co = parse_commit($commit);
2099                 if (!%co) {
2100                         next;
2101                 }
2102
2103                 my $ref = format_ref_marker($refs, $commit);
2104
2105                 if ($alternate) {
2106                         print "<tr class=\"dark\">\n";
2107                 } else {
2108                         print "<tr class=\"light\">\n";
2109                 }
2110                 $alternate ^= 1;
2111                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2112                       # shortlog uses      chop_str($co{'author_name'}, 10)
2113                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2114                       "<td>";
2115                 # originally git_history used chop_str($co{'title'}, 50)
2116                 print format_subject_html($co{'title'}, $co{'title_short'},
2117                                           href(action=>"commit", hash=>$commit), $ref);
2118                 print "</td>\n" .
2119                       "<td class=\"link\">" .
2120                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2121                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2122
2123                 if ($ftype eq 'blob') {
2124                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2125                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2126                         if (defined $blob_current && defined $blob_parent &&
2127                                         $blob_current ne $blob_parent) {
2128                                 print " | " .
2129                                         $cgi->a({-href => href(action=>"blobdiff",
2130                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2131                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2132                                                                file_name=>$file_name)},
2133                                                 "diff to current");
2134                         }
2135                 }
2136                 print "</td>\n" .
2137                       "</tr>\n";
2138         }
2139         if (defined $extra) {
2140                 print "<tr>\n" .
2141                       "<td colspan=\"4\">$extra</td>\n" .
2142                       "</tr>\n";
2143         }
2144         print "</table>\n";
2145 }
2146
2147 sub git_tags_body {
2148         # uses global variable $project
2149         my ($taglist, $from, $to, $extra) = @_;
2150         $from = 0 unless defined $from;
2151         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2152
2153         print "<table class=\"tags\" cellspacing=\"0\">\n";
2154         my $alternate = 1;
2155         for (my $i = $from; $i <= $to; $i++) {
2156                 my $entry = $taglist->[$i];
2157                 my %tag = %$entry;
2158                 my $comment_lines = $tag{'comment'};
2159                 my $comment = shift @$comment_lines;
2160                 my $comment_short;
2161                 if (defined $comment) {
2162                         $comment_short = chop_str($comment, 30, 5);
2163                 }
2164                 if ($alternate) {
2165                         print "<tr class=\"dark\">\n";
2166                 } else {
2167                         print "<tr class=\"light\">\n";
2168                 }
2169                 $alternate ^= 1;
2170                 print "<td><i>$tag{'age'}</i></td>\n" .
2171                       "<td>" .
2172                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2173                                -class => "list name"}, esc_html($tag{'name'})) .
2174                       "</td>\n" .
2175                       "<td>";
2176                 if (defined $comment) {
2177                         print format_subject_html($comment, $comment_short,
2178                                                   href(action=>"tag", hash=>$tag{'id'}));
2179                 }
2180                 print "</td>\n" .
2181                       "<td class=\"selflink\">";
2182                 if ($tag{'type'} eq "tag") {
2183                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2184                 } else {
2185                         print "&nbsp;";
2186                 }
2187                 print "</td>\n" .
2188                       "<td class=\"link\">" . " | " .
2189                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2190                 if ($tag{'reftype'} eq "commit") {
2191                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2192                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2193                 } elsif ($tag{'reftype'} eq "blob") {
2194                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2195                 }
2196                 print "</td>\n" .
2197                       "</tr>";
2198         }
2199         if (defined $extra) {
2200                 print "<tr>\n" .
2201                       "<td colspan=\"5\">$extra</td>\n" .
2202                       "</tr>\n";
2203         }
2204         print "</table>\n";
2205 }
2206
2207 sub git_heads_body {
2208         # uses global variable $project
2209         my ($headlist, $head, $from, $to, $extra) = @_;
2210         $from = 0 unless defined $from;
2211         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2212
2213         print "<table class=\"heads\" cellspacing=\"0\">\n";
2214         my $alternate = 1;
2215         for (my $i = $from; $i <= $to; $i++) {
2216                 my $entry = $headlist->[$i];
2217                 my %tag = %$entry;
2218                 my $curr = $tag{'id'} eq $head;
2219                 if ($alternate) {
2220                         print "<tr class=\"dark\">\n";
2221                 } else {
2222                         print "<tr class=\"light\">\n";
2223                 }
2224                 $alternate ^= 1;
2225                 print "<td><i>$tag{'age'}</i></td>\n" .
2226                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2227                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2228                                -class => "list name"},esc_html($tag{'name'})) .
2229                       "</td>\n" .
2230                       "<td class=\"link\">" .
2231                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2232                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2233                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2234                       "</td>\n" .
2235                       "</tr>";
2236         }
2237         if (defined $extra) {
2238                 print "<tr>\n" .
2239                       "<td colspan=\"3\">$extra</td>\n" .
2240                       "</tr>\n";
2241         }
2242         print "</table>\n";
2243 }
2244
2245 ## ======================================================================
2246 ## ======================================================================
2247 ## actions
2248
2249 sub git_project_list {
2250         my $order = $cgi->param('o');
2251         if (defined $order && $order !~ m/project|descr|owner|age/) {
2252                 die_error(undef, "Unknown order parameter");
2253         }
2254
2255         my @list = git_get_projects_list();
2256         my @projects;
2257         if (!@list) {
2258                 die_error(undef, "No projects found");
2259         }
2260         foreach my $pr (@list) {
2261                 my $head = git_get_head_hash($pr->{'path'});
2262                 if (!defined $head) {
2263                         next;
2264                 }
2265                 $git_dir = "$projectroot/$pr->{'path'}";
2266                 my %co = parse_commit($head);
2267                 if (!%co) {
2268                         next;
2269                 }
2270                 $pr->{'commit'} = \%co;
2271                 if (!defined $pr->{'descr'}) {
2272                         my $descr = git_get_project_description($pr->{'path'}) || "";
2273                         $pr->{'descr'} = chop_str($descr, 25, 5);
2274                 }
2275                 if (!defined $pr->{'owner'}) {
2276                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2277                 }
2278                 push @projects, $pr;
2279         }
2280
2281         git_header_html();
2282         if (-f $home_text) {
2283                 print "<div class=\"index_include\">\n";
2284                 open (my $fd, $home_text);
2285                 print <$fd>;
2286                 close $fd;
2287                 print "</div>\n";
2288         }
2289         print "<table class=\"project_list\">\n" .
2290               "<tr>\n";
2291         $order ||= "project";
2292         if ($order eq "project") {
2293                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2294                 print "<th>Project</th>\n";
2295         } else {
2296                 print "<th>" .
2297                       $cgi->a({-href => href(project=>undef, order=>'project'),
2298                                -class => "header"}, "Project") .
2299                       "</th>\n";
2300         }
2301         if ($order eq "descr") {
2302                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2303                 print "<th>Description</th>\n";
2304         } else {
2305                 print "<th>" .
2306                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2307                                -class => "header"}, "Description") .
2308                       "</th>\n";
2309         }
2310         if ($order eq "owner") {
2311                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2312                 print "<th>Owner</th>\n";
2313         } else {
2314                 print "<th>" .
2315                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2316                                -class => "header"}, "Owner") .
2317                       "</th>\n";
2318         }
2319         if ($order eq "age") {
2320                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2321                 print "<th>Last Change</th>\n";
2322         } else {
2323                 print "<th>" .
2324                       $cgi->a({-href => href(project=>undef, order=>'age'),
2325                                -class => "header"}, "Last Change") .
2326                       "</th>\n";
2327         }
2328         print "<th></th>\n" .
2329               "</tr>\n";
2330         my $alternate = 1;
2331         foreach my $pr (@projects) {
2332                 if ($alternate) {
2333                         print "<tr class=\"dark\">\n";
2334                 } else {
2335                         print "<tr class=\"light\">\n";
2336                 }
2337                 $alternate ^= 1;
2338                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2339                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2340                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2341                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2342                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2343                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2344                       "<td class=\"link\">" .
2345                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2346                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2347                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2348                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2349                       "</td>\n" .
2350                       "</tr>\n";
2351         }
2352         print "</table>\n";
2353         git_footer_html();
2354 }
2355
2356 sub git_project_index {
2357         my @projects = git_get_projects_list();
2358
2359         print $cgi->header(
2360                 -type => 'text/plain',
2361                 -charset => 'utf-8',
2362                 -content_disposition => 'inline; filename="index.aux"');
2363
2364         foreach my $pr (@projects) {
2365                 if (!exists $pr->{'owner'}) {
2366                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2367                 }
2368
2369                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2370                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2371                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2372                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2373                 $path  =~ s/ /\+/g;
2374                 $owner =~ s/ /\+/g;
2375
2376                 print "$path $owner\n";
2377         }
2378 }
2379
2380 sub git_summary {
2381         my $descr = git_get_project_description($project) || "none";
2382         my $head = git_get_head_hash($project);
2383         my %co = parse_commit($head);
2384         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2385
2386         my $owner = git_get_project_owner($project);
2387
2388         my ($reflist, $refs) = git_get_refs_list();
2389
2390         my @taglist;
2391         my @headlist;
2392         foreach my $ref (@$reflist) {
2393                 if ($ref->{'name'} =~ s!^heads/!!) {
2394                         push @headlist, $ref;
2395                 } else {
2396                         $ref->{'name'} =~ s!^tags/!!;
2397                         push @taglist, $ref;
2398                 }
2399         }
2400
2401         git_header_html();
2402         git_print_page_nav('summary','', $head);
2403
2404         print "<div class=\"title\">&nbsp;</div>\n";
2405         print "<table cellspacing=\"0\">\n" .
2406               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2407               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2408               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2409         # use per project git URL list in $projectroot/$project/cloneurl
2410         # or make project git URL from git base URL and project name
2411         my $url_tag = "URL";
2412         my @url_list = git_get_project_url_list($project);
2413         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2414         foreach my $git_url (@url_list) {
2415                 next unless $git_url;
2416                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2417                 $url_tag = "";
2418         }
2419         print "</table>\n";
2420
2421         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2422                 git_get_head_hash($project)
2423                 or die_error(undef, "Open git-rev-list failed");
2424         my @revlist = map { chomp; $_ } <$fd>;
2425         close $fd;
2426         git_print_header_div('shortlog');
2427         git_shortlog_body(\@revlist, 0, 15, $refs,
2428                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2429
2430         if (@taglist) {
2431                 git_print_header_div('tags');
2432                 git_tags_body(\@taglist, 0, 15,
2433                               $cgi->a({-href => href(action=>"tags")}, "..."));
2434         }
2435
2436         if (@headlist) {
2437                 git_print_header_div('heads');
2438                 git_heads_body(\@headlist, $head, 0, 15,
2439                                $cgi->a({-href => href(action=>"heads")}, "..."));
2440         }
2441
2442         git_footer_html();
2443 }
2444
2445 sub git_tag {
2446         my $head = git_get_head_hash($project);
2447         git_header_html();
2448         git_print_page_nav('','', $head,undef,$head);
2449         my %tag = parse_tag($hash);
2450         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2451         print "<div class=\"title_text\">\n" .
2452               "<table cellspacing=\"0\">\n" .
2453               "<tr>\n" .
2454               "<td>object</td>\n" .
2455               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2456                                $tag{'object'}) . "</td>\n" .
2457               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2458                                               $tag{'type'}) . "</td>\n" .
2459               "</tr>\n";
2460         if (defined($tag{'author'})) {
2461                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2462                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2463                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2464                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2465                         "</td></tr>\n";
2466         }
2467         print "</table>\n\n" .
2468               "</div>\n";
2469         print "<div class=\"page_body\">";
2470         my $comment = $tag{'comment'};
2471         foreach my $line (@$comment) {
2472                 print esc_html($line) . "<br/>\n";
2473         }
2474         print "</div>\n";
2475         git_footer_html();
2476 }
2477
2478 sub git_blame2 {
2479         my $fd;
2480         my $ftype;
2481
2482         my ($have_blame) = gitweb_check_feature('blame');
2483         if (!$have_blame) {
2484                 die_error('403 Permission denied', "Permission denied");
2485         }
2486         die_error('404 Not Found', "File name not defined") if (!$file_name);
2487         $hash_base ||= git_get_head_hash($project);
2488         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2489         my %co = parse_commit($hash_base)
2490                 or die_error(undef, "Reading commit failed");
2491         if (!defined $hash) {
2492                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2493                         or die_error(undef, "Error looking up file");
2494         }
2495         $ftype = git_get_type($hash);
2496         if ($ftype !~ "blob") {
2497                 die_error("400 Bad Request", "Object is not a blob");
2498         }
2499         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2500                 or die_error(undef, "Open git-blame failed");
2501         git_header_html();
2502         my $formats_nav =
2503                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2504                         "blob") .
2505                 " | " .
2506                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2507                         "history") .
2508                 " | " .
2509                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2510                         "HEAD");
2511         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2512         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2513         git_print_page_path($file_name, $ftype, $hash_base);
2514         my @rev_color = (qw(light2 dark2));
2515         my $num_colors = scalar(@rev_color);
2516         my $current_color = 0;
2517         my $last_rev;
2518         print <<HTML;
2519 <div class="page_body">
2520 <table class="blame">
2521 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2522 HTML
2523         while (<$fd>) {
2524                 my ($full_rev, $author, $date, $lineno, $data) =
2525                         /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2526                 my $rev = substr($full_rev, 0, 8);
2527                 my $print_c8 = 0;
2528
2529                 if (!defined $last_rev) {
2530                         $last_rev = $full_rev;
2531                         $print_c8 = 1;
2532                 } elsif ($last_rev ne $full_rev) {
2533                         $last_rev = $full_rev;
2534                         $current_color = ++$current_color % $num_colors;
2535                         $print_c8 = 1;
2536                 }
2537                 print "<tr class=\"$rev_color[$current_color]\">\n";
2538                 print "<td class=\"sha1\"";
2539                 if ($print_c8 == 1) {
2540                         print " title=\"$author, $date\"";
2541                 }
2542                 print ">";
2543                 if ($print_c8 == 1) {
2544                         print $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2545                                       esc_html($rev));
2546                 }
2547                 print "</td>\n";
2548                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2549                       esc_html($lineno) . "</a></td>\n";
2550                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2551                 print "</tr>\n";
2552         }
2553         print "</table>\n";
2554         print "</div>";
2555         close $fd
2556                 or print "Reading blob failed\n";
2557         git_footer_html();
2558 }
2559
2560 sub git_blame {
2561         my $fd;
2562
2563         my ($have_blame) = gitweb_check_feature('blame');
2564         if (!$have_blame) {
2565                 die_error('403 Permission denied', "Permission denied");
2566         }
2567         die_error('404 Not Found', "File name not defined") if (!$file_name);
2568         $hash_base ||= git_get_head_hash($project);
2569         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2570         my %co = parse_commit($hash_base)
2571                 or die_error(undef, "Reading commit failed");
2572         if (!defined $hash) {
2573                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2574                         or die_error(undef, "Error lookup file");
2575         }
2576         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2577                 or die_error(undef, "Open git-annotate failed");
2578         git_header_html();
2579         my $formats_nav =
2580                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2581                         "blob") .
2582                 " | " .
2583                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2584                         "history") .
2585                 " | " .
2586                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2587                         "HEAD");
2588         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2589         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2590         git_print_page_path($file_name, 'blob', $hash_base);
2591         print "<div class=\"page_body\">\n";
2592         print <<HTML;
2593 <table class="blame">
2594   <tr>
2595     <th>Commit</th>
2596     <th>Age</th>
2597     <th>Author</th>
2598     <th>Line</th>
2599     <th>Data</th>
2600   </tr>
2601 HTML
2602         my @line_class = (qw(light dark));
2603         my $line_class_len = scalar (@line_class);
2604         my $line_class_num = $#line_class;
2605         while (my $line = <$fd>) {
2606                 my $long_rev;
2607                 my $short_rev;
2608                 my $author;
2609                 my $time;
2610                 my $lineno;
2611                 my $data;
2612                 my $age;
2613                 my $age_str;
2614                 my $age_class;
2615
2616                 chomp $line;
2617                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2618
2619                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2620                         $long_rev = $1;
2621                         $author   = $2;
2622                         $time     = $3;
2623                         $lineno   = $4;
2624                         $data     = $5;
2625                 } else {
2626                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2627                         next;
2628                 }
2629                 $short_rev  = substr ($long_rev, 0, 8);
2630                 $age        = time () - $time;
2631                 $age_str    = age_string ($age);
2632                 $age_str    =~ s/ /&nbsp;/g;
2633                 $age_class  = age_class($age);
2634                 $author     = esc_html ($author);
2635                 $author     =~ s/ /&nbsp;/g;
2636
2637                 $data = untabify($data);
2638                 $data = esc_html ($data);
2639
2640                 print <<HTML;
2641   <tr class="$line_class[$line_class_num]">
2642     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2643     <td class="$age_class">$age_str</td>
2644     <td>$author</td>
2645     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2646     <td class="pre">$data</td>
2647   </tr>
2648 HTML
2649         } # while (my $line = <$fd>)
2650         print "</table>\n\n";
2651         close $fd
2652                 or print "Reading blob failed.\n";
2653         print "</div>";
2654         git_footer_html();
2655 }
2656
2657 sub git_tags {
2658         my $head = git_get_head_hash($project);
2659         git_header_html();
2660         git_print_page_nav('','', $head,undef,$head);
2661         git_print_header_div('summary', $project);
2662
2663         my ($taglist) = git_get_refs_list("tags");
2664         if (@$taglist) {
2665                 git_tags_body($taglist);
2666         }
2667         git_footer_html();
2668 }
2669
2670 sub git_heads {
2671         my $head = git_get_head_hash($project);
2672         git_header_html();
2673         git_print_page_nav('','', $head,undef,$head);
2674         git_print_header_div('summary', $project);
2675
2676         my ($headlist) = git_get_refs_list("heads");
2677         if (@$headlist) {
2678                 git_heads_body($headlist, $head);
2679         }
2680         git_footer_html();
2681 }
2682
2683 sub git_blob_plain {
2684         my $expires;
2685
2686         if (!defined $hash) {
2687                 if (defined $file_name) {
2688                         my $base = $hash_base || git_get_head_hash($project);
2689                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2690                                 or die_error(undef, "Error lookup file");
2691                 } else {
2692                         die_error(undef, "No file name defined");
2693                 }
2694         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2695                 # blobs defined by non-textual hash id's can be cached
2696                 $expires = "+1d";
2697         }
2698
2699         my $type = shift;
2700         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2701                 or die_error(undef, "Couldn't cat $file_name, $hash");
2702
2703         $type ||= blob_mimetype($fd, $file_name);
2704
2705         # save as filename, even when no $file_name is given
2706         my $save_as = "$hash";
2707         if (defined $file_name) {
2708                 $save_as = $file_name;
2709         } elsif ($type =~ m/^text\//) {
2710                 $save_as .= '.txt';
2711         }
2712
2713         print $cgi->header(
2714                 -type => "$type",
2715                 -expires=>$expires,
2716                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2717         undef $/;
2718         binmode STDOUT, ':raw';
2719         print <$fd>;
2720         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2721         $/ = "\n";
2722         close $fd;
2723 }
2724
2725 sub git_blob {
2726         my $expires;
2727
2728         if (!defined $hash) {
2729                 if (defined $file_name) {
2730                         my $base = $hash_base || git_get_head_hash($project);
2731                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2732                                 or die_error(undef, "Error lookup file");
2733                 } else {
2734                         die_error(undef, "No file name defined");
2735                 }
2736         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2737                 # blobs defined by non-textual hash id's can be cached
2738                 $expires = "+1d";
2739         }
2740
2741         my ($have_blame) = gitweb_check_feature('blame');
2742         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2743                 or die_error(undef, "Couldn't cat $file_name, $hash");
2744         my $mimetype = blob_mimetype($fd, $file_name);
2745         if ($mimetype !~ m/^text\//) {
2746                 close $fd;
2747                 return git_blob_plain($mimetype);
2748         }
2749         git_header_html(undef, $expires);
2750         my $formats_nav = '';
2751         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2752                 if (defined $file_name) {
2753                         if ($have_blame) {
2754                                 $formats_nav .=
2755                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2756                                                                hash=>$hash, file_name=>$file_name)},
2757                                                 "blame") .
2758                                         " | ";
2759                         }
2760                         $formats_nav .=
2761                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2762                                                        hash=>$hash, file_name=>$file_name)},
2763                                         "history") .
2764                                 " | " .
2765                                 $cgi->a({-href => href(action=>"blob_plain",
2766                                                        hash=>$hash, file_name=>$file_name)},
2767                                         "raw") .
2768                                 " | " .
2769                                 $cgi->a({-href => href(action=>"blob",
2770                                                        hash_base=>"HEAD", file_name=>$file_name)},
2771                                         "HEAD");
2772                 } else {
2773                         $formats_nav .=
2774                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2775                 }
2776                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2777                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2778         } else {
2779                 print "<div class=\"page_nav\">\n" .
2780                       "<br/><br/></div>\n" .
2781                       "<div class=\"title\">$hash</div>\n";
2782         }
2783         git_print_page_path($file_name, "blob", $hash_base);
2784         print "<div class=\"page_body\">\n";
2785         my $nr;
2786         while (my $line = <$fd>) {
2787                 chomp $line;
2788                 $nr++;
2789                 $line = untabify($line);
2790                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2791                        $nr, $nr, $nr, esc_html($line);
2792         }
2793         close $fd
2794                 or print "Reading blob failed.\n";
2795         print "</div>";
2796         git_footer_html();
2797 }
2798
2799 sub git_tree {
2800         my $have_snapshot = gitweb_have_snapshot();
2801
2802         if (!defined $hash_base) {
2803                 $hash_base = "HEAD";
2804         }
2805         if (!defined $hash) {
2806                 if (defined $file_name) {
2807                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2808                 } else {
2809                         $hash = $hash_base;
2810                 }
2811         }
2812         $/ = "\0";
2813         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2814                 or die_error(undef, "Open git-ls-tree failed");
2815         my @entries = map { chomp; $_ } <$fd>;
2816         close $fd or die_error(undef, "Reading tree failed");
2817         $/ = "\n";
2818
2819         my $refs = git_get_references();
2820         my $ref = format_ref_marker($refs, $hash_base);
2821         git_header_html();
2822         my $base = "";
2823         my ($have_blame) = gitweb_check_feature('blame');
2824         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2825                 my @views_nav = ();
2826                 if (defined $file_name) {
2827                         push @views_nav,
2828                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2829                                                        hash=>$hash, file_name=>$file_name)},
2830                                         "history"),
2831                                 $cgi->a({-href => href(action=>"tree",
2832                                                        hash_base=>"HEAD", file_name=>$file_name)},
2833                                         "HEAD"),
2834                 }
2835                 if ($have_snapshot) {
2836                         # FIXME: Should be available when we have no hash base as well.
2837                         push @views_nav,
2838                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2839                                         "snapshot");
2840                 }
2841                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2842                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2843         } else {
2844                 undef $hash_base;
2845                 print "<div class=\"page_nav\">\n";
2846                 print "<br/><br/></div>\n";
2847                 print "<div class=\"title\">$hash</div>\n";
2848         }
2849         if (defined $file_name) {
2850                 $base = esc_html("$file_name/");
2851         }
2852         git_print_page_path($file_name, 'tree', $hash_base);
2853         print "<div class=\"page_body\">\n";
2854         print "<table cellspacing=\"0\">\n";
2855         my $alternate = 1;
2856         foreach my $line (@entries) {
2857                 my %t = parse_ls_tree_line($line, -z => 1);
2858
2859                 if ($alternate) {
2860                         print "<tr class=\"dark\">\n";
2861                 } else {
2862                         print "<tr class=\"light\">\n";
2863                 }
2864                 $alternate ^= 1;
2865
2866                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2867
2868                 print "</tr>\n";
2869         }
2870         print "</table>\n" .
2871               "</div>";
2872         git_footer_html();
2873 }
2874
2875 sub git_snapshot {
2876         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2877         my $have_snapshot = (defined $ctype && defined $suffix);
2878         if (!$have_snapshot) {
2879                 die_error('403 Permission denied', "Permission denied");
2880         }
2881
2882         if (!defined $hash) {
2883                 $hash = git_get_head_hash($project);
2884         }
2885
2886         my $filename = basename($project) . "-$hash.tar.$suffix";
2887
2888         print $cgi->header(
2889                 -type => 'application/x-tar',
2890                 -content_encoding => $ctype,
2891                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2892                 -status => '200 OK');
2893
2894         my $git_command = git_cmd_str();
2895         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2896                 die_error(undef, "Execute git-tar-tree failed.");
2897         binmode STDOUT, ':raw';
2898         print <$fd>;
2899         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2900         close $fd;
2901
2902 }
2903
2904 sub git_log {
2905         my $head = git_get_head_hash($project);
2906         if (!defined $hash) {
2907                 $hash = $head;
2908         }
2909         if (!defined $page) {
2910                 $page = 0;
2911         }
2912         my $refs = git_get_references();
2913
2914         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2915         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2916                 or die_error(undef, "Open git-rev-list failed");
2917         my @revlist = map { chomp; $_ } <$fd>;
2918         close $fd;
2919
2920         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2921
2922         git_header_html();
2923         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2924
2925         if (!@revlist) {
2926                 my %co = parse_commit($hash);
2927
2928                 git_print_header_div('summary', $project);
2929                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2930         }
2931         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2932                 my $commit = $revlist[$i];
2933                 my $ref = format_ref_marker($refs, $commit);
2934                 my %co = parse_commit($commit);
2935                 next if !%co;
2936                 my %ad = parse_date($co{'author_epoch'});
2937                 git_print_header_div('commit',
2938                                "<span class=\"age\">$co{'age_string'}</span>" .
2939                                esc_html($co{'title'}) . $ref,
2940                                $commit);
2941                 print "<div class=\"title_text\">\n" .
2942                       "<div class=\"log_link\">\n" .
2943                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2944                       " | " .
2945                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2946                       " | " .
2947                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2948                       "<br/>\n" .
2949                       "</div>\n" .
2950                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2951                       "</div>\n";
2952
2953                 print "<div class=\"log_body\">\n";
2954                 git_print_simplified_log($co{'comment'});
2955                 print "</div>\n";
2956         }
2957         git_footer_html();
2958 }
2959
2960 sub git_commit {
2961         my %co = parse_commit($hash);
2962         if (!%co) {
2963                 die_error(undef, "Unknown commit object");
2964         }
2965         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2966         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2967
2968         my $parent = $co{'parent'};
2969         if (!defined $parent) {
2970                 $parent = "--root";
2971         }
2972         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2973                 or die_error(undef, "Open git-diff-tree failed");
2974         my @difftree = map { chomp; $_ } <$fd>;
2975         close $fd or die_error(undef, "Reading git-diff-tree failed");
2976
2977         # non-textual hash id's can be cached
2978         my $expires;
2979         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2980                 $expires = "+1d";
2981         }
2982         my $refs = git_get_references();
2983         my $ref = format_ref_marker($refs, $co{'id'});
2984
2985         my $have_snapshot = gitweb_have_snapshot();
2986
2987         my @views_nav = ();
2988         if (defined $file_name && defined $co{'parent'}) {
2989                 push @views_nav,
2990                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2991                                 "blame");
2992         }
2993         if (defined $co{'parent'}) {
2994                 push @views_nav,
2995                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
2996                         $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
2997         }
2998         git_header_html(undef, $expires);
2999         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3000                            $hash, $co{'tree'}, $hash,
3001                            join (' | ', @views_nav));
3002
3003         if (defined $co{'parent'}) {
3004                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3005         } else {
3006                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3007         }
3008         print "<div class=\"title_text\">\n" .
3009               "<table cellspacing=\"0\">\n";
3010         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3011               "<tr>" .
3012               "<td></td><td> $ad{'rfc2822'}";
3013         if ($ad{'hour_local'} < 6) {
3014                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3015                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3016         } else {
3017                 printf(" (%02d:%02d %s)",
3018                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3019         }
3020         print "</td>" .
3021               "</tr>\n";
3022         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3023         print "<tr><td></td><td> $cd{'rfc2822'}" .
3024               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3025               "</td></tr>\n";
3026         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3027         print "<tr>" .
3028               "<td>tree</td>" .
3029               "<td class=\"sha1\">" .
3030               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3031                        class => "list"}, $co{'tree'}) .
3032               "</td>" .
3033               "<td class=\"link\">" .
3034               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3035                       "tree");
3036         if ($have_snapshot) {
3037                 print " | " .
3038                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3039         }
3040         print "</td>" .
3041               "</tr>\n";
3042         my $parents = $co{'parents'};
3043         foreach my $par (@$parents) {
3044                 print "<tr>" .
3045                       "<td>parent</td>" .
3046                       "<td class=\"sha1\">" .
3047                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3048                                class => "list"}, $par) .
3049                       "</td>" .
3050                       "<td class=\"link\">" .
3051                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3052                       " | " .
3053                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3054                       "</td>" .
3055                       "</tr>\n";
3056         }
3057         print "</table>".
3058               "</div>\n";
3059
3060         print "<div class=\"page_body\">\n";
3061         git_print_log($co{'comment'});
3062         print "</div>\n";
3063
3064         git_difftree_body(\@difftree, $hash, $parent);
3065
3066         git_footer_html();
3067 }
3068
3069 sub git_blobdiff {
3070         my $format = shift || 'html';
3071
3072         my $fd;
3073         my @difftree;
3074         my %diffinfo;
3075         my $expires;
3076
3077         # preparing $fd and %diffinfo for git_patchset_body
3078         # new style URI
3079         if (defined $hash_base && defined $hash_parent_base) {
3080                 if (defined $file_name) {
3081                         # read raw output
3082                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3083                                 "--", $file_name
3084                                 or die_error(undef, "Open git-diff-tree failed");
3085                         @difftree = map { chomp; $_ } <$fd>;
3086                         close $fd
3087                                 or die_error(undef, "Reading git-diff-tree failed");
3088                         @difftree
3089                                 or die_error('404 Not Found', "Blob diff not found");
3090
3091                 } elsif (defined $hash &&
3092                          $hash =~ /[0-9a-fA-F]{40}/) {
3093                         # try to find filename from $hash
3094
3095                         # read filtered raw output
3096                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3097                                 or die_error(undef, "Open git-diff-tree failed");
3098                         @difftree =
3099                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3100                                 # $hash == to_id
3101                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3102                                 map { chomp; $_ } <$fd>;
3103                         close $fd
3104                                 or die_error(undef, "Reading git-diff-tree failed");
3105                         @difftree
3106                                 or die_error('404 Not Found', "Blob diff not found");
3107
3108                 } else {
3109                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3110                 }
3111
3112                 if (@difftree > 1) {
3113                         die_error('404 Not Found', "Ambiguous blob diff specification");
3114                 }
3115
3116                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3117                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3118                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3119
3120                 $hash_parent ||= $diffinfo{'from_id'};
3121                 $hash        ||= $diffinfo{'to_id'};
3122
3123                 # non-textual hash id's can be cached
3124                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3125                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3126                         $expires = '+1d';
3127                 }
3128
3129                 # open patch output
3130                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3131                         '-p', $hash_parent_base, $hash_base,
3132                         "--", $file_name
3133                         or die_error(undef, "Open git-diff-tree failed");
3134         }
3135
3136         # old/legacy style URI
3137         if (!%diffinfo && # if new style URI failed
3138             defined $hash && defined $hash_parent) {
3139                 # fake git-diff-tree raw output
3140                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3141                 $diffinfo{'from_id'} = $hash_parent;
3142                 $diffinfo{'to_id'}   = $hash;
3143                 if (defined $file_name) {
3144                         if (defined $file_parent) {
3145                                 $diffinfo{'status'} = '2';
3146                                 $diffinfo{'from_file'} = $file_parent;
3147                                 $diffinfo{'to_file'}   = $file_name;
3148                         } else { # assume not renamed
3149                                 $diffinfo{'status'} = '1';
3150                                 $diffinfo{'from_file'} = $file_name;
3151                                 $diffinfo{'to_file'}   = $file_name;
3152                         }
3153                 } else { # no filename given
3154                         $diffinfo{'status'} = '2';
3155                         $diffinfo{'from_file'} = $hash_parent;
3156                         $diffinfo{'to_file'}   = $hash;
3157                 }
3158
3159                 # non-textual hash id's can be cached
3160                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3161                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3162                         $expires = '+1d';
3163                 }
3164
3165                 # open patch output
3166                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3167                         or die_error(undef, "Open git-diff failed");
3168         } else  {
3169                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3170                         unless %diffinfo;
3171         }
3172
3173         # header
3174         if ($format eq 'html') {
3175                 my $formats_nav =
3176                         $cgi->a({-href => href(action=>"blobdiff_plain",
3177                                                hash=>$hash, hash_parent=>$hash_parent,
3178                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3179                                                file_name=>$file_name, file_parent=>$file_parent)},
3180                                 "raw");
3181                 git_header_html(undef, $expires);
3182                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3183                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3184                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3185                 } else {
3186                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3187                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3188                 }
3189                 if (defined $file_name) {
3190                         git_print_page_path($file_name, "blob", $hash_base);
3191                 } else {
3192                         print "<div class=\"page_path\"></div>\n";
3193                 }
3194
3195         } elsif ($format eq 'plain') {
3196                 print $cgi->header(
3197                         -type => 'text/plain',
3198                         -charset => 'utf-8',
3199                         -expires => $expires,
3200                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3201
3202                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3203
3204         } else {
3205                 die_error(undef, "Unknown blobdiff format");
3206         }
3207
3208         # patch
3209         if ($format eq 'html') {
3210                 print "<div class=\"page_body\">\n";
3211
3212                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3213                 close $fd;
3214
3215                 print "</div>\n"; # class="page_body"
3216                 git_footer_html();
3217
3218         } else {
3219                 while (my $line = <$fd>) {
3220                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3221                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3222
3223                         print $line;
3224
3225                         last if $line =~ m!^\+\+\+!;
3226                 }
3227                 local $/ = undef;
3228                 print <$fd>;
3229                 close $fd;
3230         }
3231 }
3232
3233 sub git_blobdiff_plain {
3234         git_blobdiff('plain');
3235 }
3236
3237 sub git_commitdiff {
3238         my $format = shift || 'html';
3239         my %co = parse_commit($hash);
3240         if (!%co) {
3241                 die_error(undef, "Unknown commit object");
3242         }
3243         if (!defined $hash_parent) {
3244                 $hash_parent = $co{'parent'} || '--root';
3245         }
3246
3247         # read commitdiff
3248         my $fd;
3249         my @difftree;
3250         if ($format eq 'html') {
3251                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3252                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3253                         or die_error(undef, "Open git-diff-tree failed");
3254
3255                 while (chomp(my $line = <$fd>)) {
3256                         # empty line ends raw part of diff-tree output
3257                         last unless $line;
3258                         push @difftree, $line;
3259                 }
3260
3261         } elsif ($format eq 'plain') {
3262                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3263                         '-p', $hash_parent, $hash
3264                         or die_error(undef, "Open git-diff-tree failed");
3265
3266         } else {
3267                 die_error(undef, "Unknown commitdiff format");
3268         }
3269
3270         # non-textual hash id's can be cached
3271         my $expires;
3272         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3273                 $expires = "+1d";
3274         }
3275
3276         # write commit message
3277         if ($format eq 'html') {
3278                 my $refs = git_get_references();
3279                 my $ref = format_ref_marker($refs, $co{'id'});
3280                 my $formats_nav =
3281                         $cgi->a({-href => href(action=>"commitdiff_plain",
3282                                                hash=>$hash, hash_parent=>$hash_parent)},
3283                                 "raw");
3284
3285                 git_header_html(undef, $expires);
3286                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3287                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3288                 git_print_authorship(\%co);
3289                 print "<div class=\"page_body\">\n";
3290                 print "<div class=\"log\">\n";
3291                 git_print_simplified_log($co{'comment'}, 1); # skip title
3292                 print "</div>\n"; # class="log"
3293
3294         } elsif ($format eq 'plain') {
3295                 my $refs = git_get_references("tags");
3296                 my $tagname = git_get_rev_name_tags($hash);
3297                 my $filename = basename($project) . "-$hash.patch";
3298
3299                 print $cgi->header(
3300                         -type => 'text/plain',
3301                         -charset => 'utf-8',
3302                         -expires => $expires,
3303                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3304                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3305                 print <<TEXT;
3306 From: $co{'author'}
3307 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3308 Subject: $co{'title'}
3309 TEXT
3310                 print "X-Git-Tag: $tagname\n" if $tagname;
3311                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3312
3313                 foreach my $line (@{$co{'comment'}}) {
3314                         print "$line\n";
3315                 }
3316                 print "---\n\n";
3317         }
3318
3319         # write patch
3320         if ($format eq 'html') {
3321                 git_difftree_body(\@difftree, $hash, $hash_parent);
3322                 print "<br/>\n";
3323
3324                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3325                 close $fd;
3326                 print "</div>\n"; # class="page_body"
3327                 git_footer_html();
3328
3329         } elsif ($format eq 'plain') {
3330                 local $/ = undef;
3331                 print <$fd>;
3332                 close $fd
3333                         or print "Reading git-diff-tree failed\n";
3334         }
3335 }
3336
3337 sub git_commitdiff_plain {
3338         git_commitdiff('plain');
3339 }
3340
3341 sub git_history {
3342         if (!defined $hash_base) {
3343                 $hash_base = git_get_head_hash($project);
3344         }
3345         if (!defined $page) {
3346                 $page = 0;
3347         }
3348         my $ftype;
3349         my %co = parse_commit($hash_base);
3350         if (!%co) {
3351                 die_error(undef, "Unknown commit object");
3352         }
3353
3354         my $refs = git_get_references();
3355         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3356
3357         if (!defined $hash && defined $file_name) {
3358                 $hash = git_get_hash_by_path($hash_base, $file_name);
3359         }
3360         if (defined $hash) {
3361                 $ftype = git_get_type($hash);
3362         }
3363
3364         open my $fd, "-|",
3365                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3366                         or die_error(undef, "Open git-rev-list-failed");
3367         my @revlist = map { chomp; $_ } <$fd>;
3368         close $fd
3369                 or die_error(undef, "Reading git-rev-list failed");
3370
3371         my $paging_nav = '';
3372         if ($page > 0) {
3373                 $paging_nav .=
3374                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3375                                                file_name=>$file_name)},
3376                                 "first");
3377                 $paging_nav .= " &sdot; " .
3378                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3379                                                file_name=>$file_name, page=>$page-1),
3380                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3381         } else {
3382                 $paging_nav .= "first";
3383                 $paging_nav .= " &sdot; prev";
3384         }
3385         if ($#revlist >= (100 * ($page+1)-1)) {
3386                 $paging_nav .= " &sdot; " .
3387                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3388                                                file_name=>$file_name, page=>$page+1),
3389                                  -accesskey => "n", -title => "Alt-n"}, "next");
3390         } else {
3391                 $paging_nav .= " &sdot; next";
3392         }
3393         my $next_link = '';
3394         if ($#revlist >= (100 * ($page+1)-1)) {
3395                 $next_link =
3396                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3397                                                file_name=>$file_name, page=>$page+1),
3398                                  -title => "Alt-n"}, "next");
3399         }
3400
3401         git_header_html();
3402         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3403         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3404         git_print_page_path($file_name, $ftype, $hash_base);
3405
3406         git_history_body(\@revlist, ($page * 100), $#revlist,
3407                          $refs, $hash_base, $ftype, $next_link);
3408
3409         git_footer_html();
3410 }
3411
3412 sub git_search {
3413         if (!defined $searchtext) {
3414                 die_error(undef, "Text field empty");
3415         }
3416         if (!defined $hash) {
3417                 $hash = git_get_head_hash($project);
3418         }
3419         my %co = parse_commit($hash);
3420         if (!%co) {
3421                 die_error(undef, "Unknown commit object");
3422         }
3423
3424         my $commit_search = 1;
3425         my $author_search = 0;
3426         my $committer_search = 0;
3427         my $pickaxe_search = 0;
3428         if ($searchtext =~ s/^author\\://i) {
3429                 $author_search = 1;
3430         } elsif ($searchtext =~ s/^committer\\://i) {
3431                 $committer_search = 1;
3432         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3433                 $commit_search = 0;
3434                 $pickaxe_search = 1;
3435
3436                 # pickaxe may take all resources of your box and run for several minutes
3437                 # with every query - so decide by yourself how public you make this feature
3438                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3439                 if (!$have_pickaxe) {
3440                         die_error('403 Permission denied', "Permission denied");
3441                 }
3442         }
3443         git_header_html();
3444         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3445         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3446
3447         print "<table cellspacing=\"0\">\n";
3448         my $alternate = 1;
3449         if ($commit_search) {
3450                 $/ = "\0";
3451                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3452                 while (my $commit_text = <$fd>) {
3453                         if (!grep m/$searchtext/i, $commit_text) {
3454                                 next;
3455                         }
3456                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3457                                 next;
3458                         }
3459                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3460                                 next;
3461                         }
3462                         my @commit_lines = split "\n", $commit_text;
3463                         my %co = parse_commit(undef, \@commit_lines);
3464                         if (!%co) {
3465                                 next;
3466                         }
3467                         if ($alternate) {
3468                                 print "<tr class=\"dark\">\n";
3469                         } else {
3470                                 print "<tr class=\"light\">\n";
3471                         }
3472                         $alternate ^= 1;
3473                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3474                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3475                               "<td>" .
3476                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3477                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3478                         my $comment = $co{'comment'};
3479                         foreach my $line (@$comment) {
3480                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3481                                         my $lead = esc_html($1) || "";
3482                                         $lead = chop_str($lead, 30, 10);
3483                                         my $match = esc_html($2) || "";
3484                                         my $trail = esc_html($3) || "";
3485                                         $trail = chop_str($trail, 30, 10);
3486                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3487                                         print chop_str($text, 80, 5) . "<br/>\n";
3488                                 }
3489                         }
3490                         print "</td>\n" .
3491                               "<td class=\"link\">" .
3492                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3493                               " | " .
3494                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3495                         print "</td>\n" .
3496                               "</tr>\n";
3497                 }
3498                 close $fd;
3499         }
3500
3501         if ($pickaxe_search) {
3502                 $/ = "\n";
3503                 my $git_command = git_cmd_str();
3504                 open my $fd, "-|", "$git_command rev-list $hash | " .
3505                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3506                 undef %co;
3507                 my @files;
3508                 while (my $line = <$fd>) {
3509                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3510                                 my %set;
3511                                 $set{'file'} = $6;
3512                                 $set{'from_id'} = $3;
3513                                 $set{'to_id'} = $4;
3514                                 $set{'id'} = $set{'to_id'};
3515                                 if ($set{'id'} =~ m/0{40}/) {
3516                                         $set{'id'} = $set{'from_id'};
3517                                 }
3518                                 if ($set{'id'} =~ m/0{40}/) {
3519                                         next;
3520                                 }
3521                                 push @files, \%set;
3522                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3523                                 if (%co) {
3524                                         if ($alternate) {
3525                                                 print "<tr class=\"dark\">\n";
3526                                         } else {
3527                                                 print "<tr class=\"light\">\n";
3528                                         }
3529                                         $alternate ^= 1;
3530                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3531                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3532                                               "<td>" .
3533                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3534                                                       -class => "list subject"},
3535                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3536                                         while (my $setref = shift @files) {
3537                                                 my %set = %$setref;
3538                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3539                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3540                                                               -class => "list"},
3541                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3542                                                       "<br/>\n";
3543                                         }
3544                                         print "</td>\n" .
3545                                               "<td class=\"link\">" .
3546                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3547                                               " | " .
3548                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3549                                         print "</td>\n" .
3550                                               "</tr>\n";
3551                                 }
3552                                 %co = parse_commit($1);
3553                         }
3554                 }
3555                 close $fd;
3556         }
3557         print "</table>\n";
3558         git_footer_html();
3559 }
3560
3561 sub git_shortlog {
3562         my $head = git_get_head_hash($project);
3563         if (!defined $hash) {
3564                 $hash = $head;
3565         }
3566         if (!defined $page) {
3567                 $page = 0;
3568         }
3569         my $refs = git_get_references();
3570
3571         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3572         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3573                 or die_error(undef, "Open git-rev-list failed");
3574         my @revlist = map { chomp; $_ } <$fd>;
3575         close $fd;
3576
3577         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3578         my $next_link = '';
3579         if ($#revlist >= (100 * ($page+1)-1)) {
3580                 $next_link =
3581                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3582                                  -title => "Alt-n"}, "next");
3583         }
3584
3585
3586         git_header_html();
3587         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3588         git_print_header_div('summary', $project);
3589
3590         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3591
3592         git_footer_html();
3593 }
3594
3595 ## ......................................................................
3596 ## feeds (RSS, OPML)
3597
3598 sub git_rss {
3599         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3600         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3601                 or die_error(undef, "Open git-rev-list failed");
3602         my @revlist = map { chomp; $_ } <$fd>;
3603         close $fd or die_error(undef, "Reading git-rev-list failed");
3604         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3605         print <<XML;
3606 <?xml version="1.0" encoding="utf-8"?>
3607 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3608 <channel>
3609 <title>$project $my_uri $my_url</title>
3610 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3611 <description>$project log</description>
3612 <language>en</language>
3613 XML
3614
3615         for (my $i = 0; $i <= $#revlist; $i++) {
3616                 my $commit = $revlist[$i];
3617                 my %co = parse_commit($commit);
3618                 # we read 150, we always show 30 and the ones more recent than 48 hours
3619                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3620                         last;
3621                 }
3622                 my %cd = parse_date($co{'committer_epoch'});
3623                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3624                         $co{'parent'}, $co{'id'}
3625                         or next;
3626                 my @difftree = map { chomp; $_ } <$fd>;
3627                 close $fd
3628                         or next;
3629                 print "<item>\n" .
3630                       "<title>" .
3631                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3632                       "</title>\n" .
3633                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3634                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3635                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3636                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3637                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3638                       "<content:encoded>" .
3639                       "<![CDATA[\n";
3640                 my $comment = $co{'comment'};
3641                 foreach my $line (@$comment) {
3642                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3643                         print "$line<br/>\n";
3644                 }
3645                 print "<br/>\n";
3646                 foreach my $line (@difftree) {
3647                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3648                                 next;
3649                         }
3650                         my $file = esc_html(unquote($7));
3651                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3652                         print "$file<br/>\n";
3653                 }
3654                 print "]]>\n" .
3655                       "</content:encoded>\n" .
3656                       "</item>\n";
3657         }
3658         print "</channel></rss>";
3659 }
3660
3661 sub git_opml {
3662         my @list = git_get_projects_list();
3663
3664         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3665         print <<XML;
3666 <?xml version="1.0" encoding="utf-8"?>
3667 <opml version="1.0">
3668 <head>
3669   <title>$site_name Git OPML Export</title>
3670 </head>
3671 <body>
3672 <outline text="git RSS feeds">
3673 XML
3674
3675         foreach my $pr (@list) {
3676                 my %proj = %$pr;
3677                 my $head = git_get_head_hash($proj{'path'});
3678                 if (!defined $head) {
3679                         next;
3680                 }
3681                 $git_dir = "$projectroot/$proj{'path'}";
3682                 my %co = parse_commit($head);
3683                 if (!%co) {
3684                         next;
3685                 }
3686
3687                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3688                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3689                 my $html = "$my_url?p=$proj{'path'};a=summary";
3690                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3691         }
3692         print <<XML;
3693 </outline>
3694 </body>
3695 </opml>
3696 XML
3697 }