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