Lady’s Gitweb - Gitweb/blob - gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # filename of html text to include at top of each page
  45 our $site_header = "++GITWEB_SITE_HEADER++";
  46 # html text to include at home page
  47 our $home_text = "++GITWEB_HOMETEXT++";
  48 # filename of html text to include at bottom of each page
  49 our $site_footer = "++GITWEB_SITE_FOOTER++";
  50
  51 # URI of stylesheets
  52 our @stylesheets = ("++GITWEB_CSS++");
  53 our $stylesheet;
  54 # default is not to define style sheet, but it can be overwritten later
  55 undef $stylesheet;
  56
  57 # URI of GIT logo
  58 our $logo = "++GITWEB_LOGO++";
  59 # URI of GIT favicon, assumed to be image/png type
  60 our $favicon = "++GITWEB_FAVICON++";
  61
  62 # source of projects list
  63 our $projects_list = "++GITWEB_LIST++";
  64
  65 # show repository only if this file exists
  66 # (only effective if this variable evaluates to true)
  67 our $export_ok = "++GITWEB_EXPORT_OK++";
  68
  69 # only allow viewing of repositories also shown on the overview page
  70 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  71
  72 # list of git base URLs used for URL to where fetch project from,
  73 # i.e. full URL is "$git_base_url/$project"
  74 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  75
  76 # default blob_plain mimetype and default charset for text/plain blob
  77 our $default_blob_plain_mimetype = 'text/plain';
  78 our $default_text_plain_charset  = undef;
  79
  80 # file to use for guessing MIME types before trying /etc/mime.types
  81 # (relative to the current git repository)
  82 our $mimetypes_file = undef;
  83
  84 # You define site-wide feature defaults here; override them with
  85 # $GITWEB_CONFIG as necessary.
  86 our %feature = (
  87         # feature => {
  88         #       'sub' => feature-sub (subroutine),
  89         #       'override' => allow-override (boolean),
  90         #       'default' => [ default options...] (array reference)}
  91         #
  92         # if feature is overridable (it means that allow-override has true value,
  93         # then feature-sub will be called with default options as parameters;
  94         # return value of feature-sub indicates if to enable specified feature
  95         #
  96         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  97
  98         'blame' => {
  99                 'sub' => \&feature_blame,
 100                 'override' => 0,
 101                 'default' => [0]},
 102
 103         'snapshot' => {
 104                 'sub' => \&feature_snapshot,
 105                 'override' => 0,
 106                 #         => [content-encoding, suffix, program]
 107                 'default' => ['x-gzip', 'gz', 'gzip']},
 108
 109         'pickaxe' => {
 110                 'sub' => \&feature_pickaxe,
 111                 'override' => 0,
 112                 'default' => [1]},
 113
 114         'pathinfo' => {
 115                 'override' => 0,
 116                 'default' => [0]},
 117 );
 118
 119 sub gitweb_check_feature {
 120         my ($name) = @_;
 121         return unless exists $feature{$name};
 122         my ($sub, $override, @defaults) = (
 123                 $feature{$name}{'sub'},
 124                 $feature{$name}{'override'},
 125                 @{$feature{$name}{'default'}});
 126         if (!$override) { return @defaults; }
 127         if (!defined $sub) {
 128                 warn "feature $name is not overrideable";
 129                 return @defaults;
 130         }
 131         return $sub->(@defaults);
 132 }
 133
 134 # To enable system wide have in $GITWEB_CONFIG
 135 # $feature{'blame'}{'default'} = [1];
 136 # To have project specific config enable override in $GITWEB_CONFIG
 137 # $feature{'blame'}{'override'} = 1;
 138 # and in project config gitweb.blame = 0|1;
 139
 140 sub feature_blame {
 141         my ($val) = git_get_project_config('blame', '--bool');
 142
 143         if ($val eq 'true') {
 144                 return 1;
 145         } elsif ($val eq 'false') {
 146                 return 0;
 147         }
 148
 149         return $_[0];
 150 }
 151
 152 # To disable system wide have in $GITWEB_CONFIG
 153 # $feature{'snapshot'}{'default'} = [undef];
 154 # To have project specific config enable override in $GITWEB_CONFIG
 155 # $feature{'blame'}{'override'} = 1;
 156 # and in project config  gitweb.snapshot = none|gzip|bzip2
 157
 158 sub feature_snapshot {
 159         my ($ctype, $suffix, $command) = @_;
 160
 161         my ($val) = git_get_project_config('snapshot');
 162
 163         if ($val eq 'gzip') {
 164                 return ('x-gzip', 'gz', 'gzip');
 165         } elsif ($val eq 'bzip2') {
 166                 return ('x-bzip2', 'bz2', 'bzip2');
 167         } elsif ($val eq 'none') {
 168                 return ();
 169         }
 170
 171         return ($ctype, $suffix, $command);
 172 }
 173
 174 sub gitweb_have_snapshot {
 175         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 176         my $have_snapshot = (defined $ctype && defined $suffix);
 177
 178         return $have_snapshot;
 179 }
 180
 181 # To enable system wide have in $GITWEB_CONFIG
 182 # $feature{'pickaxe'}{'default'} = [1];
 183 # To have project specific config enable override in $GITWEB_CONFIG
 184 # $feature{'pickaxe'}{'override'} = 1;
 185 # and in project config gitweb.pickaxe = 0|1;
 186
 187 sub feature_pickaxe {
 188         my ($val) = git_get_project_config('pickaxe', '--bool');
 189
 190         if ($val eq 'true') {
 191                 return (1);
 192         } elsif ($val eq 'false') {
 193                 return (0);
 194         }
 195
 196         return ($_[0]);
 197 }
 198
 199 # checking HEAD file with -e is fragile if the repository was
 200 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 201 # and then pruned.
 202 sub check_head_link {
 203         my ($dir) = @_;
 204         my $headfile = "$dir/HEAD";
 205         return ((-e $headfile) ||
 206                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 207 }
 208
 209 sub check_export_ok {
 210         my ($dir) = @_;
 211         return (check_head_link($dir) &&
 212                 (!$export_ok || -e "$dir/$export_ok"));
 213 }
 214
 215 # rename detection options for git-diff and git-diff-tree
 216 # - default is '-M', with the cost proportional to
 217 #   (number of removed files) * (number of new files).
 218 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 219 #   (number of changed files + number of removed files) * (number of new files)
 220 # - even more costly is '-C', '--find-copies-harder' with cost
 221 #   (number of files in the original tree) * (number of new files)
 222 # - one might want to include '-B' option, e.g. '-B', '-M'
 223 our @diff_opts = ('-M'); # taken from git_commit
 224
 225 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 226 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 227
 228 # version of the core git binary
 229 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 230
 231 $projects_list ||= $projectroot;
 232
 233 # ======================================================================
 234 # input validation and dispatch
 235 our $action = $cgi->param('a');
 236 if (defined $action) {
 237         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 238                 die_error(undef, "Invalid action parameter");
 239         }
 240 }
 241
 242 # parameters which are pathnames
 243 our $project = $cgi->param('p');
 244 if (defined $project) {
 245         if (!validate_pathname($project) ||
 246             !(-d "$projectroot/$project") ||
 247             !check_head_link("$projectroot/$project") ||
 248             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 249             ($strict_export && !project_in_list($project))) {
 250                 undef $project;
 251                 die_error(undef, "No such project");
 252         }
 253 }
 254
 255 our $file_name = $cgi->param('f');
 256 if (defined $file_name) {
 257         if (!validate_pathname($file_name)) {
 258                 die_error(undef, "Invalid file parameter");
 259         }
 260 }
 261
 262 our $file_parent = $cgi->param('fp');
 263 if (defined $file_parent) {
 264         if (!validate_pathname($file_parent)) {
 265                 die_error(undef, "Invalid file parent parameter");
 266         }
 267 }
 268
 269 # parameters which are refnames
 270 our $hash = $cgi->param('h');
 271 if (defined $hash) {
 272         if (!validate_refname($hash)) {
 273                 die_error(undef, "Invalid hash parameter");
 274         }
 275 }
 276
 277 our $hash_parent = $cgi->param('hp');
 278 if (defined $hash_parent) {
 279         if (!validate_refname($hash_parent)) {
 280                 die_error(undef, "Invalid hash parent parameter");
 281         }
 282 }
 283
 284 our $hash_base = $cgi->param('hb');
 285 if (defined $hash_base) {
 286         if (!validate_refname($hash_base)) {
 287                 die_error(undef, "Invalid hash base parameter");
 288         }
 289 }
 290
 291 our $hash_parent_base = $cgi->param('hpb');
 292 if (defined $hash_parent_base) {
 293         if (!validate_refname($hash_parent_base)) {
 294                 die_error(undef, "Invalid hash parent base parameter");
 295         }
 296 }
 297
 298 # other parameters
 299 our $page = $cgi->param('pg');
 300 if (defined $page) {
 301         if ($page =~ m/[^0-9]/) {
 302                 die_error(undef, "Invalid page parameter");
 303         }
 304 }
 305
 306 our $searchtext = $cgi->param('s');
 307 if (defined $searchtext) {
 308         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 309                 die_error(undef, "Invalid search parameter");
 310         }
 311         $searchtext = quotemeta $searchtext;
 312 }
 313
 314 # now read PATH_INFO and use it as alternative to parameters
 315 sub evaluate_path_info {
 316         return if defined $project;
 317         my $path_info = $ENV{"PATH_INFO"};
 318         return if !$path_info;
 319         $path_info =~ s,^/+,,;
 320         return if !$path_info;
 321         # find which part of PATH_INFO is project
 322         $project = $path_info;
 323         $project =~ s,/+$,,;
 324         while ($project && !check_head_link("$projectroot/$project")) {
 325                 $project =~ s,/*[^/]*$,,;
 326         }
 327         # validate project
 328         $project = validate_pathname($project);
 329         if (!$project ||
 330             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 331             ($strict_export && !project_in_list($project))) {
 332                 undef $project;
 333                 return;
 334         }
 335         # do not change any parameters if an action is given using the query string
 336         return if $action;
 337         $path_info =~ s,^$project/*,,;
 338         my ($refname, $pathname) = split(/:/, $path_info, 2);
 339         if (defined $pathname) {
 340                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 341                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 342                 $pathname =~ s,^/+,,;
 343                 if (!$pathname || substr($pathname, -1) eq "/") {
 344                         $action  ||= "tree";
 345                         $pathname =~ s,/$,,;
 346                 } else {
 347                         $action  ||= "blob_plain";
 348                 }
 349                 $hash_base ||= validate_refname($refname);
 350                 $file_name ||= validate_pathname($pathname);
 351         } elsif (defined $refname) {
 352                 # we got "project.git/branch"
 353                 $action ||= "shortlog";
 354                 $hash   ||= validate_refname($refname);
 355         }
 356 }
 357 evaluate_path_info();
 358
 359 # path to the current git repository
 360 our $git_dir;
 361 $git_dir = "$projectroot/$project" if $project;
 362
 363 # dispatch
 364 my %actions = (
 365         "blame" => \&git_blame2,
 366         "blobdiff" => \&git_blobdiff,
 367         "blobdiff_plain" => \&git_blobdiff_plain,
 368         "blob" => \&git_blob,
 369         "blob_plain" => \&git_blob_plain,
 370         "commitdiff" => \&git_commitdiff,
 371         "commitdiff_plain" => \&git_commitdiff_plain,
 372         "commit" => \&git_commit,
 373         "heads" => \&git_heads,
 374         "history" => \&git_history,
 375         "log" => \&git_log,
 376         "rss" => \&git_rss,
 377         "search" => \&git_search,
 378         "shortlog" => \&git_shortlog,
 379         "summary" => \&git_summary,
 380         "tag" => \&git_tag,
 381         "tags" => \&git_tags,
 382         "tree" => \&git_tree,
 383         "snapshot" => \&git_snapshot,
 384         # those below don't need $project
 385         "opml" => \&git_opml,
 386         "project_list" => \&git_project_list,
 387         "project_index" => \&git_project_index,
 388 );
 389
 390 if (defined $project) {
 391         $action ||= 'summary';
 392 } else {
 393         $action ||= 'project_list';
 394 }
 395 if (!defined($actions{$action})) {
 396         die_error(undef, "Unknown action");
 397 }
 398 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 399     !$project) {
 400         die_error(undef, "Project needed");
 401 }
 402 $actions{$action}->();
 403 exit;
 404
 405 ## ======================================================================
 406 ## action links
 407
 408 sub href(%) {
 409         my %params = @_;
 410         my $href = $my_uri;
 411
 412         my @mapping = (
 413                 project => "p",
 414                 action => "a",
 415                 file_name => "f",
 416                 file_parent => "fp",
 417                 hash => "h",
 418                 hash_parent => "hp",
 419                 hash_base => "hb",
 420                 hash_parent_base => "hpb",
 421                 page => "pg",
 422                 order => "o",
 423                 searchtext => "s",
 424         );
 425         my %mapping = @mapping;
 426
 427         $params{'project'} = $project unless exists $params{'project'};
 428
 429         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 430         if ($use_pathinfo) {
 431                 # use PATH_INFO for project name
 432                 $href .= "/$params{'project'}" if defined $params{'project'};
 433                 delete $params{'project'};
 434
 435                 # Summary just uses the project path URL
 436                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 437                         delete $params{'action'};
 438                 }
 439         }
 440
 441         # now encode the parameters explicitly
 442         my @result = ();
 443         for (my $i = 0; $i < @mapping; $i += 2) {
 444                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 445                 if (defined $params{$name}) {
 446                         push @result, $symbol . "=" . esc_param($params{$name});
 447                 }
 448         }
 449         $href .= "?" . join(';', @result) if scalar @result;
 450
 451         return $href;
 452 }
 453
 454
 455 ## ======================================================================
 456 ## validation, quoting/unquoting and escaping
 457
 458 sub validate_pathname {
 459         my $input = shift || return undef;
 460
 461         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 462         # at the beginning, at the end, and between slashes.
 463         # also this catches doubled slashes
 464         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 465                 return undef;
 466         }
 467         # no null characters
 468         if ($input =~ m!\0!) {
 469                 return undef;
 470         }
 471         return $input;
 472 }
 473
 474 sub validate_refname {
 475         my $input = shift || return undef;
 476
 477         # textual hashes are O.K.
 478         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 479                 return $input;
 480         }
 481         # it must be correct pathname
 482         $input = validate_pathname($input)
 483                 or return undef;
 484         # restrictions on ref name according to git-check-ref-format
 485         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 486                 return undef;
 487         }
 488         return $input;
 489 }
 490
 491 # quote unsafe chars, but keep the slash, even when it's not
 492 # correct, but quoted slashes look too horrible in bookmarks
 493 sub esc_param {
 494         my $str = shift;
 495         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 496         $str =~ s/\+/%2B/g;
 497         $str =~ s/ /\+/g;
 498         return $str;
 499 }
 500
 501 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 502 sub esc_url {
 503         my $str = shift;
 504         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 505         $str =~ s/\+/%2B/g;
 506         $str =~ s/ /\+/g;
 507         return $str;
 508 }
 509
 510 # replace invalid utf8 character with SUBSTITUTION sequence
 511 sub esc_html {
 512         my $str = shift;
 513         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 514         $str = escapeHTML($str);
 515         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 516         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 517         return $str;
 518 }
 519
 520 # git may return quoted and escaped filenames
 521 sub unquote {
 522         my $str = shift;
 523         if ($str =~ m/^"(.*)"$/) {
 524                 $str = $1;
 525                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 526         }
 527         return $str;
 528 }
 529
 530 # escape tabs (convert tabs to spaces)
 531 sub untabify {
 532         my $line = shift;
 533
 534         while ((my $pos = index($line, "\t")) != -1) {
 535                 if (my $count = (8 - ($pos % 8))) {
 536                         my $spaces = ' ' x $count;
 537                         $line =~ s/\t/$spaces/;
 538                 }
 539         }
 540
 541         return $line;
 542 }
 543
 544 sub project_in_list {
 545         my $project = shift;
 546         my @list = git_get_projects_list();
 547         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 548 }
 549
 550 ## ----------------------------------------------------------------------
 551 ## HTML aware string manipulation
 552
 553 sub chop_str {
 554         my $str = shift;
 555         my $len = shift;
 556         my $add_len = shift || 10;
 557
 558         # allow only $len chars, but don't cut a word if it would fit in $add_len
 559         # if it doesn't fit, cut it if it's still longer than the dots we would add
 560         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 561         my $body = $1;
 562         my $tail = $2;
 563         if (length($tail) > 4) {
 564                 $tail = " ...";
 565                 $body =~ s/&[^;]*$//; # remove chopped character entities
 566         }
 567         return "$body$tail";
 568 }
 569
 570 ## ----------------------------------------------------------------------
 571 ## functions returning short strings
 572
 573 # CSS class for given age value (in seconds)
 574 sub age_class {
 575         my $age = shift;
 576
 577         if ($age < 60*60*2) {
 578                 return "age0";
 579         } elsif ($age < 60*60*24*2) {
 580                 return "age1";
 581         } else {
 582                 return "age2";
 583         }
 584 }
 585
 586 # convert age in seconds to "nn units ago" string
 587 sub age_string {
 588         my $age = shift;
 589         my $age_str;
 590
 591         if ($age > 60*60*24*365*2) {
 592                 $age_str = (int $age/60/60/24/365);
 593                 $age_str .= " years ago";
 594         } elsif ($age > 60*60*24*(365/12)*2) {
 595                 $age_str = int $age/60/60/24/(365/12);
 596                 $age_str .= " months ago";
 597         } elsif ($age > 60*60*24*7*2) {
 598                 $age_str = int $age/60/60/24/7;
 599                 $age_str .= " weeks ago";
 600         } elsif ($age > 60*60*24*2) {
 601                 $age_str = int $age/60/60/24;
 602                 $age_str .= " days ago";
 603         } elsif ($age > 60*60*2) {
 604                 $age_str = int $age/60/60;
 605                 $age_str .= " hours ago";
 606         } elsif ($age > 60*2) {
 607                 $age_str = int $age/60;
 608                 $age_str .= " min ago";
 609         } elsif ($age > 2) {
 610                 $age_str = int $age;
 611                 $age_str .= " sec ago";
 612         } else {
 613                 $age_str .= " right now";
 614         }
 615         return $age_str;
 616 }
 617
 618 # convert file mode in octal to symbolic file mode string
 619 sub mode_str {
 620         my $mode = oct shift;
 621
 622         if (S_ISDIR($mode & S_IFMT)) {
 623                 return 'drwxr-xr-x';
 624         } elsif (S_ISLNK($mode)) {
 625                 return 'lrwxrwxrwx';
 626         } elsif (S_ISREG($mode)) {
 627                 # git cares only about the executable bit
 628                 if ($mode & S_IXUSR) {
 629                         return '-rwxr-xr-x';
 630                 } else {
 631                         return '-rw-r--r--';
 632                 };
 633         } else {
 634                 return '----------';
 635         }
 636 }
 637
 638 # convert file mode in octal to file type string
 639 sub file_type {
 640         my $mode = shift;
 641
 642         if ($mode !~ m/^[0-7]+$/) {
 643                 return $mode;
 644         } else {
 645                 $mode = oct $mode;
 646         }
 647
 648         if (S_ISDIR($mode & S_IFMT)) {
 649                 return "directory";
 650         } elsif (S_ISLNK($mode)) {
 651                 return "symlink";
 652         } elsif (S_ISREG($mode)) {
 653                 return "file";
 654         } else {
 655                 return "unknown";
 656         }
 657 }
 658
 659 ## ----------------------------------------------------------------------
 660 ## functions returning short HTML fragments, or transforming HTML fragments
 661 ## which don't beling to other sections
 662
 663 # format line of commit message or tag comment
 664 sub format_log_line_html {
 665         my $line = shift;
 666
 667         $line = esc_html($line);
 668         $line =~ s/ /&nbsp;/g;
 669         if ($line =~ m/([0-9a-fA-F]{40})/) {
 670                 my $hash_text = $1;
 671                 if (git_get_type($hash_text) eq "commit") {
 672                         my $link =
 673                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 674                                         -class => "text"}, $hash_text);
 675                         $line =~ s/$hash_text/$link/;
 676                 }
 677         }
 678         return $line;
 679 }
 680
 681 # format marker of refs pointing to given object
 682 sub format_ref_marker {
 683         my ($refs, $id) = @_;
 684         my $markers = '';
 685
 686         if (defined $refs->{$id}) {
 687                 foreach my $ref (@{$refs->{$id}}) {
 688                         my ($type, $name) = qw();
 689                         # e.g. tags/v2.6.11 or heads/next
 690                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 691                                 $type = $1;
 692                                 $name = $2;
 693                         } else {
 694                                 $type = "ref";
 695                                 $name = $ref;
 696                         }
 697
 698                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 699                 }
 700         }
 701
 702         if ($markers) {
 703                 return ' <span class="refs">'. $markers . '</span>';
 704         } else {
 705                 return "";
 706         }
 707 }
 708
 709 # format, perhaps shortened and with markers, title line
 710 sub format_subject_html {
 711         my ($long, $short, $href, $extra) = @_;
 712         $extra = '' unless defined($extra);
 713
 714         if (length($short) < length($long)) {
 715                 return $cgi->a({-href => $href, -class => "list subject",
 716                                 -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 717                        esc_html($short) . $extra);
 718         } else {
 719                 return $cgi->a({-href => $href, -class => "list subject"},
 720                        esc_html($long)  . $extra);
 721         }
 722 }
 723
 724 sub format_diff_line {
 725         my $line = shift;
 726         my $char = substr($line, 0, 1);
 727         my $diff_class = "";
 728
 729         chomp $line;
 730
 731         if ($char eq '+') {
 732                 $diff_class = " add";
 733         } elsif ($char eq "-") {
 734                 $diff_class = " rem";
 735         } elsif ($char eq "@") {
 736                 $diff_class = " chunk_header";
 737         } elsif ($char eq "\\") {
 738                 $diff_class = " incomplete";
 739         }
 740         $line = untabify($line);
 741         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 742 }
 743
 744 ## ----------------------------------------------------------------------
 745 ## git utility subroutines, invoking git commands
 746
 747 # returns path to the core git executable and the --git-dir parameter as list
 748 sub git_cmd {
 749         return $GIT, '--git-dir='.$git_dir;
 750 }
 751
 752 # returns path to the core git executable and the --git-dir parameter as string
 753 sub git_cmd_str {
 754         return join(' ', git_cmd());
 755 }
 756
 757 # get HEAD ref of given project as hash
 758 sub git_get_head_hash {
 759         my $project = shift;
 760         my $o_git_dir = $git_dir;
 761         my $retval = undef;
 762         $git_dir = "$projectroot/$project";
 763         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 764                 my $head = <$fd>;
 765                 close $fd;
 766                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 767                         $retval = $1;
 768                 }
 769         }
 770         if (defined $o_git_dir) {
 771                 $git_dir = $o_git_dir;
 772         }
 773         return $retval;
 774 }
 775
 776 # get type of given object
 777 sub git_get_type {
 778         my $hash = shift;
 779
 780         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 781         my $type = <$fd>;
 782         close $fd or return;
 783         chomp $type;
 784         return $type;
 785 }
 786
 787 sub git_get_project_config {
 788         my ($key, $type) = @_;
 789
 790         return unless ($key);
 791         $key =~ s/^gitweb\.//;
 792         return if ($key =~ m/\W/);
 793
 794         my @x = (git_cmd(), 'repo-config');
 795         if (defined $type) { push @x, $type; }
 796         push @x, "--get";
 797         push @x, "gitweb.$key";
 798         my $val = qx(@x);
 799         chomp $val;
 800         return ($val);
 801 }
 802
 803 # get hash of given path at given ref
 804 sub git_get_hash_by_path {
 805         my $base = shift;
 806         my $path = shift || return undef;
 807         my $type = shift;
 808
 809         $path =~ s,/+$,,;
 810
 811         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 812                 or die_error(undef, "Open git-ls-tree failed");
 813         my $line = <$fd>;
 814         close $fd or return undef;
 815
 816         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 817         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 818         if (defined $type && $type ne $2) {
 819                 # type doesn't match
 820                 return undef;
 821         }
 822         return $3;
 823 }
 824
 825 ## ......................................................................
 826 ## git utility functions, directly accessing git repository
 827
 828 sub git_get_project_description {
 829         my $path = shift;
 830
 831         open my $fd, "$projectroot/$path/description" or return undef;
 832         my $descr = <$fd>;
 833         close $fd;
 834         chomp $descr;
 835         return $descr;
 836 }
 837
 838 sub git_get_project_url_list {
 839         my $path = shift;
 840
 841         open my $fd, "$projectroot/$path/cloneurl" or return;
 842         my @git_project_url_list = map { chomp; $_ } <$fd>;
 843         close $fd;
 844
 845         return wantarray ? @git_project_url_list : \@git_project_url_list;
 846 }
 847
 848 sub git_get_projects_list {
 849         my @list;
 850
 851         if (-d $projects_list) {
 852                 # search in directory
 853                 my $dir = $projects_list;
 854                 my $pfxlen = length("$dir");
 855
 856                 File::Find::find({
 857                         follow_fast => 1, # follow symbolic links
 858                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 859                         wanted => sub {
 860                                 # skip project-list toplevel, if we get it.
 861                                 return if (m!^[/.]$!);
 862                                 # only directories can be git repositories
 863                                 return unless (-d $_);
 864
 865                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 866                                 # we check related file in $projectroot
 867                                 if (check_export_ok("$projectroot/$subdir")) {
 868                                         push @list, { path => $subdir };
 869                                         $File::Find::prune = 1;
 870                                 }
 871                         },
 872                 }, "$dir");
 873
 874         } elsif (-f $projects_list) {
 875                 # read from file(url-encoded):
 876                 # 'git%2Fgit.git Linus+Torvalds'
 877                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 878                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 879                 open my ($fd), $projects_list or return;
 880                 while (my $line = <$fd>) {
 881                         chomp $line;
 882                         my ($path, $owner) = split ' ', $line;
 883                         $path = unescape($path);
 884                         $owner = unescape($owner);
 885                         if (!defined $path) {
 886                                 next;
 887                         }
 888                         if (check_export_ok("$projectroot/$path")) {
 889                                 my $pr = {
 890                                         path => $path,
 891                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 892                                 };
 893                                 push @list, $pr
 894                         }
 895                 }
 896                 close $fd;
 897         }
 898         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 899         return @list;
 900 }
 901
 902 sub git_get_project_owner {
 903         my $project = shift;
 904         my $owner;
 905
 906         return undef unless $project;
 907
 908         # read from file (url-encoded):
 909         # 'git%2Fgit.git Linus+Torvalds'
 910         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 911         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 912         if (-f $projects_list) {
 913                 open (my $fd , $projects_list);
 914                 while (my $line = <$fd>) {
 915                         chomp $line;
 916                         my ($pr, $ow) = split ' ', $line;
 917                         $pr = unescape($pr);
 918                         $ow = unescape($ow);
 919                         if ($pr eq $project) {
 920                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 921                                 last;
 922                         }
 923                 }
 924                 close $fd;
 925         }
 926         if (!defined $owner) {
 927                 $owner = get_file_owner("$projectroot/$project");
 928         }
 929
 930         return $owner;
 931 }
 932
 933 sub git_get_references {
 934         my $type = shift || "";
 935         my %refs;
 936         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 937         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 938         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 939                 or return;
 940
 941         while (my $line = <$fd>) {
 942                 chomp $line;
 943                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 944                         if (defined $refs{$1}) {
 945                                 push @{$refs{$1}}, $2;
 946                         } else {
 947                                 $refs{$1} = [ $2 ];
 948                         }
 949                 }
 950         }
 951         close $fd or return;
 952         return \%refs;
 953 }
 954
 955 sub git_get_rev_name_tags {
 956         my $hash = shift || return undef;
 957
 958         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 959                 or return;
 960         my $name_rev = <$fd>;
 961         close $fd;
 962
 963         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 964                 return $1;
 965         } else {
 966                 # catches also '$hash undefined' output
 967                 return undef;
 968         }
 969 }
 970
 971 ## ----------------------------------------------------------------------
 972 ## parse to hash functions
 973
 974 sub parse_date {
 975         my $epoch = shift;
 976         my $tz = shift || "-0000";
 977
 978         my %date;
 979         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 980         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 981         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 982         $date{'hour'} = $hour;
 983         $date{'minute'} = $min;
 984         $date{'mday'} = $mday;
 985         $date{'day'} = $days[$wday];
 986         $date{'month'} = $months[$mon];
 987         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 988                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 989         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 990                              $mday, $months[$mon], $hour ,$min;
 991
 992         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 993         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 994         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 995         $date{'hour_local'} = $hour;
 996         $date{'minute_local'} = $min;
 997         $date{'tz_local'} = $tz;
 998         return %date;
 999 }
1000
1001 sub parse_tag {
1002         my $tag_id = shift;
1003         my %tag;
1004         my @comment;
1005
1006         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1007         $tag{'id'} = $tag_id;
1008         while (my $line = <$fd>) {
1009                 chomp $line;
1010                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1011                         $tag{'object'} = $1;
1012                 } elsif ($line =~ m/^type (.+)$/) {
1013                         $tag{'type'} = $1;
1014                 } elsif ($line =~ m/^tag (.+)$/) {
1015                         $tag{'name'} = $1;
1016                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1017                         $tag{'author'} = $1;
1018                         $tag{'epoch'} = $2;
1019                         $tag{'tz'} = $3;
1020                 } elsif ($line =~ m/--BEGIN/) {
1021                         push @comment, $line;
1022                         last;
1023                 } elsif ($line eq "") {
1024                         last;
1025                 }
1026         }
1027         push @comment, <$fd>;
1028         $tag{'comment'} = \@comment;
1029         close $fd or return;
1030         if (!defined $tag{'name'}) {
1031                 return
1032         };
1033         return %tag
1034 }
1035
1036 sub parse_commit {
1037         my $commit_id = shift;
1038         my $commit_text = shift;
1039
1040         my @commit_lines;
1041         my %co;
1042
1043         if (defined $commit_text) {
1044                 @commit_lines = @$commit_text;
1045         } else {
1046                 $/ = "\0";
1047                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1048                         or return;
1049                 @commit_lines = split '\n', <$fd>;
1050                 close $fd or return;
1051                 $/ = "\n";
1052                 pop @commit_lines;
1053         }
1054         my $header = shift @commit_lines;
1055         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1056                 return;
1057         }
1058         ($co{'id'}, my @parents) = split ' ', $header;
1059         $co{'parents'} = \@parents;
1060         $co{'parent'} = $parents[0];
1061         while (my $line = shift @commit_lines) {
1062                 last if $line eq "\n";
1063                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1064                         $co{'tree'} = $1;
1065                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1066                         $co{'author'} = $1;
1067                         $co{'author_epoch'} = $2;
1068                         $co{'author_tz'} = $3;
1069                         if ($co{'author'} =~ m/^([^<]+) </) {
1070                                 $co{'author_name'} = $1;
1071                         } else {
1072                                 $co{'author_name'} = $co{'author'};
1073                         }
1074                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1075                         $co{'committer'} = $1;
1076                         $co{'committer_epoch'} = $2;
1077                         $co{'committer_tz'} = $3;
1078                         $co{'committer_name'} = $co{'committer'};
1079                         $co{'committer_name'} =~ s/ <.*//;
1080                 }
1081         }
1082         if (!defined $co{'tree'}) {
1083                 return;
1084         };
1085
1086         foreach my $title (@commit_lines) {
1087                 $title =~ s/^    //;
1088                 if ($title ne "") {
1089                         $co{'title'} = chop_str($title, 80, 5);
1090                         # remove leading stuff of merges to make the interesting part visible
1091                         if (length($title) > 50) {
1092                                 $title =~ s/^Automatic //;
1093                                 $title =~ s/^merge (of|with) /Merge ... /i;
1094                                 if (length($title) > 50) {
1095                                         $title =~ s/(http|rsync):\/\///;
1096                                 }
1097                                 if (length($title) > 50) {
1098                                         $title =~ s/(master|www|rsync)\.//;
1099                                 }
1100                                 if (length($title) > 50) {
1101                                         $title =~ s/kernel.org:?//;
1102                                 }
1103                                 if (length($title) > 50) {
1104                                         $title =~ s/\/pub\/scm//;
1105                                 }
1106                         }
1107                         $co{'title_short'} = chop_str($title, 50, 5);
1108                         last;
1109                 }
1110         }
1111         # remove added spaces
1112         foreach my $line (@commit_lines) {
1113                 $line =~ s/^    //;
1114         }
1115         $co{'comment'} = \@commit_lines;
1116
1117         my $age = time - $co{'committer_epoch'};
1118         $co{'age'} = $age;
1119         $co{'age_string'} = age_string($age);
1120         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1121         if ($age > 60*60*24*7*2) {
1122                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1123                 $co{'age_string_age'} = $co{'age_string'};
1124         } else {
1125                 $co{'age_string_date'} = $co{'age_string'};
1126                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1127         }
1128         return %co;
1129 }
1130
1131 # parse ref from ref_file, given by ref_id, with given type
1132 sub parse_ref {
1133         my $ref_file = shift;
1134         my $ref_id = shift;
1135         my $type = shift || git_get_type($ref_id);
1136         my %ref_item;
1137
1138         $ref_item{'type'} = $type;
1139         $ref_item{'id'} = $ref_id;
1140         $ref_item{'epoch'} = 0;
1141         $ref_item{'age'} = "unknown";
1142         if ($type eq "tag") {
1143                 my %tag = parse_tag($ref_id);
1144                 $ref_item{'comment'} = $tag{'comment'};
1145                 if ($tag{'type'} eq "commit") {
1146                         my %co = parse_commit($tag{'object'});
1147                         $ref_item{'epoch'} = $co{'committer_epoch'};
1148                         $ref_item{'age'} = $co{'age_string'};
1149                 } elsif (defined($tag{'epoch'})) {
1150                         my $age = time - $tag{'epoch'};
1151                         $ref_item{'epoch'} = $tag{'epoch'};
1152                         $ref_item{'age'} = age_string($age);
1153                 }
1154                 $ref_item{'reftype'} = $tag{'type'};
1155                 $ref_item{'name'} = $tag{'name'};
1156                 $ref_item{'refid'} = $tag{'object'};
1157         } elsif ($type eq "commit"){
1158                 my %co = parse_commit($ref_id);
1159                 $ref_item{'reftype'} = "commit";
1160                 $ref_item{'name'} = $ref_file;
1161                 $ref_item{'title'} = $co{'title'};
1162                 $ref_item{'refid'} = $ref_id;
1163                 $ref_item{'epoch'} = $co{'committer_epoch'};
1164                 $ref_item{'age'} = $co{'age_string'};
1165         } else {
1166                 $ref_item{'reftype'} = $type;
1167                 $ref_item{'name'} = $ref_file;
1168                 $ref_item{'refid'} = $ref_id;
1169         }
1170
1171         return %ref_item;
1172 }
1173
1174 # parse line of git-diff-tree "raw" output
1175 sub parse_difftree_raw_line {
1176         my $line = shift;
1177         my %res;
1178
1179         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1180         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1181         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1182                 $res{'from_mode'} = $1;
1183                 $res{'to_mode'} = $2;
1184                 $res{'from_id'} = $3;
1185                 $res{'to_id'} = $4;
1186                 $res{'status'} = $5;
1187                 $res{'similarity'} = $6;
1188                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1189                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1190                 } else {
1191                         $res{'file'} = unquote($7);
1192                 }
1193         }
1194         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1195         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1196                 $res{'commit'} = $1;
1197         }
1198
1199         return wantarray ? %res : \%res;
1200 }
1201
1202 # parse line of git-ls-tree output
1203 sub parse_ls_tree_line ($;%) {
1204         my $line = shift;
1205         my %opts = @_;
1206         my %res;
1207
1208         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1209         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1210
1211         $res{'mode'} = $1;
1212         $res{'type'} = $2;
1213         $res{'hash'} = $3;
1214         if ($opts{'-z'}) {
1215                 $res{'name'} = $4;
1216         } else {
1217                 $res{'name'} = unquote($4);
1218         }
1219
1220         return wantarray ? %res : \%res;
1221 }
1222
1223 ## ......................................................................
1224 ## parse to array of hashes functions
1225
1226 sub git_get_refs_list {
1227         my $type = shift || "";
1228         my %refs;
1229         my @reflist;
1230
1231         my @refs;
1232         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1233                 or return;
1234         while (my $line = <$fd>) {
1235                 chomp $line;
1236                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1237                         if (defined $refs{$1}) {
1238                                 push @{$refs{$1}}, $2;
1239                         } else {
1240                                 $refs{$1} = [ $2 ];
1241                         }
1242
1243                         if (! $4) { # unpeeled, direct reference
1244                                 push @refs, { hash => $1, name => $3 }; # without type
1245                         } elsif ($3 eq $refs[-1]{'name'}) {
1246                                 # most likely a tag is followed by its peeled
1247                                 # (deref) one, and when that happens we know the
1248                                 # previous one was of type 'tag'.
1249                                 $refs[-1]{'type'} = "tag";
1250                         }
1251                 }
1252         }
1253         close $fd;
1254
1255         foreach my $ref (@refs) {
1256                 my $ref_file = $ref->{'name'};
1257                 my $ref_id   = $ref->{'hash'};
1258
1259                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1260                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1261
1262                 push @reflist, \%ref_item;
1263         }
1264         # sort refs by age
1265         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1266         return (\@reflist, \%refs);
1267 }
1268
1269 ## ----------------------------------------------------------------------
1270 ## filesystem-related functions
1271
1272 sub get_file_owner {
1273         my $path = shift;
1274
1275         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1276         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1277         if (!defined $gcos) {
1278                 return undef;
1279         }
1280         my $owner = $gcos;
1281         $owner =~ s/[,;].*$//;
1282         return decode("utf8", $owner, Encode::FB_DEFAULT);
1283 }
1284
1285 ## ......................................................................
1286 ## mimetype related functions
1287
1288 sub mimetype_guess_file {
1289         my $filename = shift;
1290         my $mimemap = shift;
1291         -r $mimemap or return undef;
1292
1293         my %mimemap;
1294         open(MIME, $mimemap) or return undef;
1295         while (<MIME>) {
1296                 next if m/^#/; # skip comments
1297                 my ($mime, $exts) = split(/\t+/);
1298                 if (defined $exts) {
1299                         my @exts = split(/\s+/, $exts);
1300                         foreach my $ext (@exts) {
1301                                 $mimemap{$ext} = $mime;
1302                         }
1303                 }
1304         }
1305         close(MIME);
1306
1307         $filename =~ /\.([^.]*)$/;
1308         return $mimemap{$1};
1309 }
1310
1311 sub mimetype_guess {
1312         my $filename = shift;
1313         my $mime;
1314         $filename =~ /\./ or return undef;
1315
1316         if ($mimetypes_file) {
1317                 my $file = $mimetypes_file;
1318                 if ($file !~ m!^/!) { # if it is relative path
1319                         # it is relative to project
1320                         $file = "$projectroot/$project/$file";
1321                 }
1322                 $mime = mimetype_guess_file($filename, $file);
1323         }
1324         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1325         return $mime;
1326 }
1327
1328 sub blob_mimetype {
1329         my $fd = shift;
1330         my $filename = shift;
1331
1332         if ($filename) {
1333                 my $mime = mimetype_guess($filename);
1334                 $mime and return $mime;
1335         }
1336
1337         # just in case
1338         return $default_blob_plain_mimetype unless $fd;
1339
1340         if (-T $fd) {
1341                 return 'text/plain' .
1342                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1343         } elsif (! $filename) {
1344                 return 'application/octet-stream';
1345         } elsif ($filename =~ m/\.png$/i) {
1346                 return 'image/png';
1347         } elsif ($filename =~ m/\.gif$/i) {
1348                 return 'image/gif';
1349         } elsif ($filename =~ m/\.jpe?g$/i) {
1350                 return 'image/jpeg';
1351         } else {
1352                 return 'application/octet-stream';
1353         }
1354 }
1355
1356 ## ======================================================================
1357 ## functions printing HTML: header, footer, error page
1358
1359 sub git_header_html {
1360         my $status = shift || "200 OK";
1361         my $expires = shift;
1362
1363         my $title = "$site_name git";
1364         if (defined $project) {
1365                 $title .= " - $project";
1366                 if (defined $action) {
1367                         $title .= "/$action";
1368                         if (defined $file_name) {
1369                                 $title .= " - " . esc_html($file_name);
1370                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1371                                         $title .= "/";
1372                                 }
1373                         }
1374                 }
1375         }
1376         my $content_type;
1377         # require explicit support from the UA if we are to send the page as
1378         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1379         # we have to do this because MSIE sometimes globs '*/*', pretending to
1380         # support xhtml+xml but choking when it gets what it asked for.
1381         if (defined $cgi->http('HTTP_ACCEPT') &&
1382             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1383             $cgi->Accept('application/xhtml+xml') != 0) {
1384                 $content_type = 'application/xhtml+xml';
1385         } else {
1386                 $content_type = 'text/html';
1387         }
1388         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1389                            -status=> $status, -expires => $expires);
1390         print <<EOF;
1391 <?xml version="1.0" encoding="utf-8"?>
1392 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1393 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1394 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1395 <!-- git core binaries version $git_version -->
1396 <head>
1397 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1398 <meta name="generator" content="gitweb/$version git/$git_version"/>
1399 <meta name="robots" content="index, nofollow"/>
1400 <title>$title</title>
1401 EOF
1402 # print out each stylesheet that exist
1403         if (defined $stylesheet) {
1404 #provides backwards capability for those people who define style sheet in a config file
1405                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1406         } else {
1407                 foreach my $stylesheet (@stylesheets) {
1408                         next unless $stylesheet;
1409                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1410                 }
1411         }
1412         if (defined $project) {
1413                 printf('<link rel="alternate" title="%s log" '.
1414                        'href="%s" type="application/rss+xml"/>'."\n",
1415                        esc_param($project), href(action=>"rss"));
1416         } else {
1417                 printf('<link rel="alternate" title="%s projects list" '.
1418                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1419                        $site_name, href(project=>undef, action=>"project_index"));
1420                 printf('<link rel="alternate" title="%s projects logs" '.
1421                        'href="%s" type="text/x-opml"/>'."\n",
1422                        $site_name, href(project=>undef, action=>"opml"));
1423         }
1424         if (defined $favicon) {
1425                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1426         }
1427
1428         print "</head>\n" .
1429               "<body>\n";
1430
1431         if (-f $site_header) {
1432                 open (my $fd, $site_header);
1433                 print <$fd>;
1434                 close $fd;
1435         }
1436
1437         print "<div class=\"page_header\">\n" .
1438               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1439               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1440               "</a>\n";
1441         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1442         if (defined $project) {
1443                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1444                 if (defined $action) {
1445                         print " / $action";
1446                 }
1447                 print "\n";
1448                 if (!defined $searchtext) {
1449                         $searchtext = "";
1450                 }
1451                 my $search_hash;
1452                 if (defined $hash_base) {
1453                         $search_hash = $hash_base;
1454                 } elsif (defined $hash) {
1455                         $search_hash = $hash;
1456                 } else {
1457                         $search_hash = "HEAD";
1458                 }
1459                 $cgi->param("a", "search");
1460                 $cgi->param("h", $search_hash);
1461                 print $cgi->startform(-method => "get", -action => $my_uri) .
1462                       "<div class=\"search\">\n" .
1463                       $cgi->hidden(-name => "p") . "\n" .
1464                       $cgi->hidden(-name => "a") . "\n" .
1465                       $cgi->hidden(-name => "h") . "\n" .
1466                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1467                       "</div>" .
1468                       $cgi->end_form() . "\n";
1469         }
1470         print "</div>\n";
1471 }
1472
1473 sub git_footer_html {
1474         print "<div class=\"page_footer\">\n";
1475         if (defined $project) {
1476                 my $descr = git_get_project_description($project);
1477                 if (defined $descr) {
1478                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1479                 }
1480                 print $cgi->a({-href => href(action=>"rss"),
1481                               -class => "rss_logo"}, "RSS") . "\n";
1482         } else {
1483                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1484                               -class => "rss_logo"}, "OPML") . " ";
1485                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1486                               -class => "rss_logo"}, "TXT") . "\n";
1487         }
1488         print "</div>\n" ;
1489
1490         if (-f $site_footer) {
1491                 open (my $fd, $site_footer);
1492                 print <$fd>;
1493                 close $fd;
1494         }
1495
1496         print "</body>\n" .
1497               "</html>";
1498 }
1499
1500 sub die_error {
1501         my $status = shift || "403 Forbidden";
1502         my $error = shift || "Malformed query, file missing or permission denied";
1503
1504         git_header_html($status);
1505         print <<EOF;
1506 <div class="page_body">
1507 <br /><br />
1508 $status - $error
1509 <br />
1510 </div>
1511 EOF
1512         git_footer_html();
1513         exit;
1514 }
1515
1516 ## ----------------------------------------------------------------------
1517 ## functions printing or outputting HTML: navigation
1518
1519 sub git_print_page_nav {
1520         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1521         $extra = '' if !defined $extra; # pager or formats
1522
1523         my @navs = qw(summary shortlog log commit commitdiff tree);
1524         if ($suppress) {
1525                 @navs = grep { $_ ne $suppress } @navs;
1526         }
1527
1528         my %arg = map { $_ => {action=>$_} } @navs;
1529         if (defined $head) {
1530                 for (qw(commit commitdiff)) {
1531                         $arg{$_}{hash} = $head;
1532                 }
1533                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1534                         for (qw(shortlog log)) {
1535                                 $arg{$_}{hash} = $head;
1536                         }
1537                 }
1538         }
1539         $arg{tree}{hash} = $treehead if defined $treehead;
1540         $arg{tree}{hash_base} = $treebase if defined $treebase;
1541
1542         print "<div class=\"page_nav\">\n" .
1543                 (join " | ",
1544                  map { $_ eq $current ?
1545                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1546                  } @navs);
1547         print "<br/>\n$extra<br/>\n" .
1548               "</div>\n";
1549 }
1550
1551 sub format_paging_nav {
1552         my ($action, $hash, $head, $page, $nrevs) = @_;
1553         my $paging_nav;
1554
1555
1556         if ($hash ne $head || $page) {
1557                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1558         } else {
1559                 $paging_nav .= "HEAD";
1560         }
1561
1562         if ($page > 0) {
1563                 $paging_nav .= " &sdot; " .
1564                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1565                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1566         } else {
1567                 $paging_nav .= " &sdot; prev";
1568         }
1569
1570         if ($nrevs >= (100 * ($page+1)-1)) {
1571                 $paging_nav .= " &sdot; " .
1572                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1573                                  -accesskey => "n", -title => "Alt-n"}, "next");
1574         } else {
1575                 $paging_nav .= " &sdot; next";
1576         }
1577
1578         return $paging_nav;
1579 }
1580
1581 ## ......................................................................
1582 ## functions printing or outputting HTML: div
1583
1584 sub git_print_header_div {
1585         my ($action, $title, $hash, $hash_base) = @_;
1586         my %args = ();
1587
1588         $args{action} = $action;
1589         $args{hash} = $hash if $hash;
1590         $args{hash_base} = $hash_base if $hash_base;
1591
1592         print "<div class=\"header\">\n" .
1593               $cgi->a({-href => href(%args), -class => "title"},
1594               $title ? $title : $action) .
1595               "\n</div>\n";
1596 }
1597
1598 #sub git_print_authorship (\%) {
1599 sub git_print_authorship {
1600         my $co = shift;
1601
1602         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1603         print "<div class=\"author_date\">" .
1604               esc_html($co->{'author_name'}) .
1605               " [$ad{'rfc2822'}";
1606         if ($ad{'hour_local'} < 6) {
1607                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1608                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1609         } else {
1610                 printf(" (%02d:%02d %s)",
1611                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1612         }
1613         print "]</div>\n";
1614 }
1615
1616 sub git_print_page_path {
1617         my $name = shift;
1618         my $type = shift;
1619         my $hb = shift;
1620
1621         if (!defined $name) {
1622                 print "<div class=\"page_path\">/</div>\n";
1623         } else {
1624                 my @dirname = split '/', $name;
1625                 my $basename = pop @dirname;
1626                 my $fullname = '';
1627
1628                 print "<div class=\"page_path\">";
1629                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1630                               -title => 'tree root'}, "[$project]");
1631                 print " / ";
1632                 foreach my $dir (@dirname) {
1633                         $fullname .= ($fullname ? '/' : '') . $dir;
1634                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1635                                                      hash_base=>$hb),
1636                                       -title => $fullname}, esc_html($dir));
1637                         print " / ";
1638                 }
1639                 if (defined $type && $type eq 'blob') {
1640                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1641                                                      hash_base=>$hb),
1642                                       -title => $name}, esc_html($basename));
1643                 } elsif (defined $type && $type eq 'tree') {
1644                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1645                                                      hash_base=>$hb),
1646                                       -title => $name}, esc_html($basename));
1647                 } else {
1648                         print esc_html($basename);
1649                 }
1650                 print "<br/></div>\n";
1651         }
1652 }
1653
1654 # sub git_print_log (\@;%) {
1655 sub git_print_log ($;%) {
1656         my $log = shift;
1657         my %opts = @_;
1658
1659         if ($opts{'-remove_title'}) {
1660                 # remove title, i.e. first line of log
1661                 shift @$log;
1662         }
1663         # remove leading empty lines
1664         while (defined $log->[0] && $log->[0] eq "") {
1665                 shift @$log;
1666         }
1667
1668         # print log
1669         my $signoff = 0;
1670         my $empty = 0;
1671         foreach my $line (@$log) {
1672                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1673                         $signoff = 1;
1674                         $empty = 0;
1675                         if (! $opts{'-remove_signoff'}) {
1676                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1677                                 next;
1678                         } else {
1679                                 # remove signoff lines
1680                                 next;
1681                         }
1682                 } else {
1683                         $signoff = 0;
1684                 }
1685
1686                 # print only one empty line
1687                 # do not print empty line after signoff
1688                 if ($line eq "") {
1689                         next if ($empty || $signoff);
1690                         $empty = 1;
1691                 } else {
1692                         $empty = 0;
1693                 }
1694
1695                 print format_log_line_html($line) . "<br/>\n";
1696         }
1697
1698         if ($opts{'-final_empty_line'}) {
1699                 # end with single empty line
1700                 print "<br/>\n" unless $empty;
1701         }
1702 }
1703
1704 sub git_print_simplified_log {
1705         my $log = shift;
1706         my $remove_title = shift;
1707
1708         git_print_log($log,
1709                 -final_empty_line=> 1,
1710                 -remove_title => $remove_title);
1711 }
1712
1713 # print tree entry (row of git_tree), but without encompassing <tr> element
1714 sub git_print_tree_entry {
1715         my ($t, $basedir, $hash_base, $have_blame) = @_;
1716
1717         my %base_key = ();
1718         $base_key{hash_base} = $hash_base if defined $hash_base;
1719
1720         # The format of a table row is: mode list link.  Where mode is
1721         # the mode of the entry, list is the name of the entry, an href,
1722         # and link is the action links of the entry.
1723
1724         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1725         if ($t->{'type'} eq "blob") {
1726                 print "<td class=\"list\">" .
1727                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1728                                                file_name=>"$basedir$t->{'name'}", %base_key),
1729                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1730                 print "<td class=\"link\">";
1731                 if ($have_blame) {
1732                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1733                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1734                                       "blame");
1735                 }
1736                 if (defined $hash_base) {
1737                         if ($have_blame) {
1738                                 print " | ";
1739                         }
1740                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1741                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1742                                       "history");
1743                 }
1744                 print " | " .
1745                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1746                                                file_name=>"$basedir$t->{'name'}")},
1747                                 "raw");
1748                 print "</td>\n";
1749
1750         } elsif ($t->{'type'} eq "tree") {
1751                 print "<td class=\"list\">";
1752                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1753                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1754                               esc_html($t->{'name'}));
1755                 print "</td>\n";
1756                 print "<td class=\"link\">";
1757                 if (defined $hash_base) {
1758                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1759                                                      file_name=>"$basedir$t->{'name'}")},
1760                                       "history");
1761                 }
1762                 print "</td>\n";
1763         }
1764 }
1765
1766 ## ......................................................................
1767 ## functions printing large fragments of HTML
1768
1769 sub git_difftree_body {
1770         my ($difftree, $hash, $parent) = @_;
1771
1772         print "<div class=\"list_head\">\n";
1773         if ($#{$difftree} > 10) {
1774                 print(($#{$difftree} + 1) . " files changed:\n");
1775         }
1776         print "</div>\n";
1777
1778         print "<table class=\"diff_tree\">\n";
1779         my $alternate = 1;
1780         my $patchno = 0;
1781         foreach my $line (@{$difftree}) {
1782                 my %diff = parse_difftree_raw_line($line);
1783
1784                 if ($alternate) {
1785                         print "<tr class=\"dark\">\n";
1786                 } else {
1787                         print "<tr class=\"light\">\n";
1788                 }
1789                 $alternate ^= 1;
1790
1791                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1792                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1793                 if ($diff{'to_mode'} ne ('0' x 6)) {
1794                         $to_mode_oct = oct $diff{'to_mode'};
1795                         if (S_ISREG($to_mode_oct)) { # only for regular file
1796                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1797                         }
1798                         $to_file_type = file_type($diff{'to_mode'});
1799                 }
1800                 if ($diff{'from_mode'} ne ('0' x 6)) {
1801                         $from_mode_oct = oct $diff{'from_mode'};
1802                         if (S_ISREG($to_mode_oct)) { # only for regular file
1803                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1804                         }
1805                         $from_file_type = file_type($diff{'from_mode'});
1806                 }
1807
1808                 if ($diff{'status'} eq "A") { # created
1809                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1810                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1811                         $mode_chng   .= "]</span>";
1812                         print "<td>";
1813                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1814                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1815                                        -class => "list"}, esc_html($diff{'file'}));
1816                         print "</td>\n";
1817                         print "<td>$mode_chng</td>\n";
1818                         print "<td class=\"link\">";
1819                         if ($action eq 'commitdiff') {
1820                                 # link to patch
1821                                 $patchno++;
1822                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1823                         }
1824                         print "</td>\n";
1825
1826                 } elsif ($diff{'status'} eq "D") { # deleted
1827                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1828                         print "<td>";
1829                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1830                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1831                                        -class => "list"}, esc_html($diff{'file'}));
1832                         print "</td>\n";
1833                         print "<td>$mode_chng</td>\n";
1834                         print "<td class=\"link\">";
1835                         if ($action eq 'commitdiff') {
1836                                 # link to patch
1837                                 $patchno++;
1838                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1839                                 print " | ";
1840                         }
1841                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1842                                                      file_name=>$diff{'file'})},
1843                                       "blame") . " | ";
1844                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1845                                                      file_name=>$diff{'file'})},
1846                                       "history");
1847                         print "</td>\n";
1848
1849                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1850                         my $mode_chnge = "";
1851                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1852                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1853                                 if ($from_file_type != $to_file_type) {
1854                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1855                                 }
1856                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1857                                         if ($from_mode_str && $to_mode_str) {
1858                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1859                                         } elsif ($to_mode_str) {
1860                                                 $mode_chnge .= " mode: $to_mode_str";
1861                                         }
1862                                 }
1863                                 $mode_chnge .= "]</span>\n";
1864                         }
1865                         print "<td>";
1866                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1867                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1868                                        -class => "list"}, esc_html($diff{'file'}));
1869                         print "</td>\n";
1870                         print "<td>$mode_chnge</td>\n";
1871                         print "<td class=\"link\">";
1872                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1873                                 if ($action eq 'commitdiff') {
1874                                         # link to patch
1875                                         $patchno++;
1876                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1877                                 } else {
1878                                         print $cgi->a({-href => href(action=>"blobdiff",
1879                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1880                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1881                                                                      file_name=>$diff{'file'})},
1882                                                       "diff");
1883                                 }
1884                                 print " | ";
1885                         }
1886                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1887                                                      file_name=>$diff{'file'})},
1888                                       "blame") . " | ";
1889                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1890                                                      file_name=>$diff{'file'})},
1891                                       "history");
1892                         print "</td>\n";
1893
1894                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1895                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1896                         my $nstatus = $status_name{$diff{'status'}};
1897                         my $mode_chng = "";
1898                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1899                                 # mode also for directories, so we cannot use $to_mode_str
1900                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1901                         }
1902                         print "<td>" .
1903                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1904                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1905                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1906                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1907                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1908                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1909                                       -class => "list"}, esc_html($diff{'from_file'})) .
1910                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1911                               "<td class=\"link\">";
1912                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1913                                 if ($action eq 'commitdiff') {
1914                                         # link to patch
1915                                         $patchno++;
1916                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1917                                 } else {
1918                                         print $cgi->a({-href => href(action=>"blobdiff",
1919                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1920                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1921                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1922                                                       "diff");
1923                                 }
1924                                 print " | ";
1925                         }
1926                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1927                                                      file_name=>$diff{'from_file'})},
1928                                       "blame") . " | ";
1929                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1930                                                      file_name=>$diff{'from_file'})},
1931                                       "history");
1932                         print "</td>\n";
1933
1934                 } # we should not encounter Unmerged (U) or Unknown (X) status
1935                 print "</tr>\n";
1936         }
1937         print "</table>\n";
1938 }
1939
1940 sub git_patchset_body {
1941         my ($fd, $difftree, $hash, $hash_parent) = @_;
1942
1943         my $patch_idx = 0;
1944         my $in_header = 0;
1945         my $patch_found = 0;
1946         my $diffinfo;
1947
1948         print "<div class=\"patchset\">\n";
1949
1950         LINE:
1951         while (my $patch_line = <$fd>) {
1952                 chomp $patch_line;
1953
1954                 if ($patch_line =~ m/^diff /) { # "git diff" header
1955                         # beginning of patch (in patchset)
1956                         if ($patch_found) {
1957                                 # close previous patch
1958                                 print "</div>\n"; # class="patch"
1959                         } else {
1960                                 # first patch in patchset
1961                                 $patch_found = 1;
1962                         }
1963                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1964
1965                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1966                                 $diffinfo = $difftree->[$patch_idx];
1967                         } else {
1968                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1969                         }
1970                         $patch_idx++;
1971
1972                         # for now, no extended header, hence we skip empty patches
1973                         # companion to  next LINE if $in_header;
1974                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1975                                 $in_header = 1;
1976                                 next LINE;
1977                         }
1978
1979                         if ($diffinfo->{'status'} eq "A") { # added
1980                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1981                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1982                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1983                                               $diffinfo->{'to_id'}) . "(new)" .
1984                                       "</div>\n"; # class="diff_info"
1985
1986                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1987                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1988                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1989                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1990                                               $diffinfo->{'from_id'}) . "(deleted)" .
1991                                       "</div>\n"; # class="diff_info"
1992
1993                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1994                                  $diffinfo->{'status'} eq "C" || # copied
1995                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1996                                 print "<div class=\"diff_info\">" .
1997                                       file_type($diffinfo->{'from_mode'}) . ":" .
1998                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1999                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2000                                               $diffinfo->{'from_id'}) .
2001                                       " -> " .
2002                                       file_type($diffinfo->{'to_mode'}) . ":" .
2003                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2004                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2005                                               $diffinfo->{'to_id'});
2006                                 print "</div>\n"; # class="diff_info"
2007
2008                         } else { # modified, mode changed, ...
2009                                 print "<div class=\"diff_info\">" .
2010                                       file_type($diffinfo->{'from_mode'}) . ":" .
2011                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2012                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2013                                               $diffinfo->{'from_id'}) .
2014                                       " -> " .
2015                                       file_type($diffinfo->{'to_mode'}) . ":" .
2016                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2017                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2018                                               $diffinfo->{'to_id'});
2019                                 print "</div>\n"; # class="diff_info"
2020                         }
2021
2022                         #print "<div class=\"diff extended_header\">\n";
2023                         $in_header = 1;
2024                         next LINE;
2025                 } # start of patch in patchset
2026
2027
2028                 if ($in_header && $patch_line =~ m/^---/) {
2029                         #print "</div>\n"; # class="diff extended_header"
2030                         $in_header = 0;
2031
2032                         my $file = $diffinfo->{'from_file'};
2033                         $file  ||= $diffinfo->{'file'};
2034                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2035                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2036                                         -class => "list"}, esc_html($file));
2037                         $patch_line =~ s|a/.*$|a/$file|g;
2038                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2039
2040                         $patch_line = <$fd>;
2041                         chomp $patch_line;
2042
2043                         #$patch_line =~ m/^+++/;
2044                         $file    = $diffinfo->{'to_file'};
2045                         $file  ||= $diffinfo->{'file'};
2046                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2047                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2048                                         -class => "list"}, esc_html($file));
2049                         $patch_line =~ s|b/.*|b/$file|g;
2050                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2051
2052                         next LINE;
2053                 }
2054                 next LINE if $in_header;
2055
2056                 print format_diff_line($patch_line);
2057         }
2058         print "</div>\n" if $patch_found; # class="patch"
2059
2060         print "</div>\n"; # class="patchset"
2061 }
2062
2063 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2064
2065 sub git_shortlog_body {
2066         # uses global variable $project
2067         my ($revlist, $from, $to, $refs, $extra) = @_;
2068
2069         $from = 0 unless defined $from;
2070         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2071
2072         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2073         my $alternate = 1;
2074         for (my $i = $from; $i <= $to; $i++) {
2075                 my $commit = $revlist->[$i];
2076                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2077                 my $ref = format_ref_marker($refs, $commit);
2078                 my %co = parse_commit($commit);
2079                 if ($alternate) {
2080                         print "<tr class=\"dark\">\n";
2081                 } else {
2082                         print "<tr class=\"light\">\n";
2083                 }
2084                 $alternate ^= 1;
2085                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2086                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2087                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2088                       "<td>";
2089                 print format_subject_html($co{'title'}, $co{'title_short'},
2090                                           href(action=>"commit", hash=>$commit), $ref);
2091                 print "</td>\n" .
2092                       "<td class=\"link\">" .
2093                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2094                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2095                       $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2096                 print "</td>\n" .
2097                       "</tr>\n";
2098         }
2099         if (defined $extra) {
2100                 print "<tr>\n" .
2101                       "<td colspan=\"4\">$extra</td>\n" .
2102                       "</tr>\n";
2103         }
2104         print "</table>\n";
2105 }
2106
2107 sub git_history_body {
2108         # Warning: assumes constant type (blob or tree) during history
2109         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2110
2111         $from = 0 unless defined $from;
2112         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2113
2114         print "<table class=\"history\" cellspacing=\"0\">\n";
2115         my $alternate = 1;
2116         for (my $i = $from; $i <= $to; $i++) {
2117                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2118                         next;
2119                 }
2120
2121                 my $commit = $1;
2122                 my %co = parse_commit($commit);
2123                 if (!%co) {
2124                         next;
2125                 }
2126
2127                 my $ref = format_ref_marker($refs, $commit);
2128
2129                 if ($alternate) {
2130                         print "<tr class=\"dark\">\n";
2131                 } else {
2132                         print "<tr class=\"light\">\n";
2133                 }
2134                 $alternate ^= 1;
2135                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2136                       # shortlog uses      chop_str($co{'author_name'}, 10)
2137                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2138                       "<td>";
2139                 # originally git_history used chop_str($co{'title'}, 50)
2140                 print format_subject_html($co{'title'}, $co{'title_short'},
2141                                           href(action=>"commit", hash=>$commit), $ref);
2142                 print "</td>\n" .
2143                       "<td class=\"link\">" .
2144                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2145                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2146
2147                 if ($ftype eq 'blob') {
2148                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2149                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2150                         if (defined $blob_current && defined $blob_parent &&
2151                                         $blob_current ne $blob_parent) {
2152                                 print " | " .
2153                                         $cgi->a({-href => href(action=>"blobdiff",
2154                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2155                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2156                                                                file_name=>$file_name)},
2157                                                 "diff to current");
2158                         }
2159                 }
2160                 print "</td>\n" .
2161                       "</tr>\n";
2162         }
2163         if (defined $extra) {
2164                 print "<tr>\n" .
2165                       "<td colspan=\"4\">$extra</td>\n" .
2166                       "</tr>\n";
2167         }
2168         print "</table>\n";
2169 }
2170
2171 sub git_tags_body {
2172         # uses global variable $project
2173         my ($taglist, $from, $to, $extra) = @_;
2174         $from = 0 unless defined $from;
2175         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2176
2177         print "<table class=\"tags\" cellspacing=\"0\">\n";
2178         my $alternate = 1;
2179         for (my $i = $from; $i <= $to; $i++) {
2180                 my $entry = $taglist->[$i];
2181                 my %tag = %$entry;
2182                 my $comment_lines = $tag{'comment'};
2183                 my $comment = shift @$comment_lines;
2184                 my $comment_short;
2185                 if (defined $comment) {
2186                         $comment_short = chop_str($comment, 30, 5);
2187                 }
2188                 if ($alternate) {
2189                         print "<tr class=\"dark\">\n";
2190                 } else {
2191                         print "<tr class=\"light\">\n";
2192                 }
2193                 $alternate ^= 1;
2194                 print "<td><i>$tag{'age'}</i></td>\n" .
2195                       "<td>" .
2196                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2197                                -class => "list name"}, esc_html($tag{'name'})) .
2198                       "</td>\n" .
2199                       "<td>";
2200                 if (defined $comment) {
2201                         print format_subject_html($comment, $comment_short,
2202                                                   href(action=>"tag", hash=>$tag{'id'}));
2203                 }
2204                 print "</td>\n" .
2205                       "<td class=\"selflink\">";
2206                 if ($tag{'type'} eq "tag") {
2207                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2208                 } else {
2209                         print "&nbsp;";
2210                 }
2211                 print "</td>\n" .
2212                       "<td class=\"link\">" . " | " .
2213                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2214                 if ($tag{'reftype'} eq "commit") {
2215                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2216                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2217                 } elsif ($tag{'reftype'} eq "blob") {
2218                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2219                 }
2220                 print "</td>\n" .
2221                       "</tr>";
2222         }
2223         if (defined $extra) {
2224                 print "<tr>\n" .
2225                       "<td colspan=\"5\">$extra</td>\n" .
2226                       "</tr>\n";
2227         }
2228         print "</table>\n";
2229 }
2230
2231 sub git_heads_body {
2232         # uses global variable $project
2233         my ($headlist, $head, $from, $to, $extra) = @_;
2234         $from = 0 unless defined $from;
2235         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2236
2237         print "<table class=\"heads\" cellspacing=\"0\">\n";
2238         my $alternate = 1;
2239         for (my $i = $from; $i <= $to; $i++) {
2240                 my $entry = $headlist->[$i];
2241                 my %tag = %$entry;
2242                 my $curr = $tag{'id'} eq $head;
2243                 if ($alternate) {
2244                         print "<tr class=\"dark\">\n";
2245                 } else {
2246                         print "<tr class=\"light\">\n";
2247                 }
2248                 $alternate ^= 1;
2249                 print "<td><i>$tag{'age'}</i></td>\n" .
2250                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2251                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2252                                -class => "list name"},esc_html($tag{'name'})) .
2253                       "</td>\n" .
2254                       "<td class=\"link\">" .
2255                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2256                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2257                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2258                       "</td>\n" .
2259                       "</tr>";
2260         }
2261         if (defined $extra) {
2262                 print "<tr>\n" .
2263                       "<td colspan=\"3\">$extra</td>\n" .
2264                       "</tr>\n";
2265         }
2266         print "</table>\n";
2267 }
2268
2269 ## ======================================================================
2270 ## ======================================================================
2271 ## actions
2272
2273 sub git_project_list {
2274         my $order = $cgi->param('o');
2275         if (defined $order && $order !~ m/project|descr|owner|age/) {
2276                 die_error(undef, "Unknown order parameter");
2277         }
2278
2279         my @list = git_get_projects_list();
2280         my @projects;
2281         if (!@list) {
2282                 die_error(undef, "No projects found");
2283         }
2284         foreach my $pr (@list) {
2285                 my $head = git_get_head_hash($pr->{'path'});
2286                 if (!defined $head) {
2287                         next;
2288                 }
2289                 $git_dir = "$projectroot/$pr->{'path'}";
2290                 my %co = parse_commit($head);
2291                 if (!%co) {
2292                         next;
2293                 }
2294                 $pr->{'commit'} = \%co;
2295                 if (!defined $pr->{'descr'}) {
2296                         my $descr = git_get_project_description($pr->{'path'}) || "";
2297                         $pr->{'descr'} = chop_str($descr, 25, 5);
2298                 }
2299                 if (!defined $pr->{'owner'}) {
2300                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2301                 }
2302                 push @projects, $pr;
2303         }
2304
2305         git_header_html();
2306         if (-f $home_text) {
2307                 print "<div class=\"index_include\">\n";
2308                 open (my $fd, $home_text);
2309                 print <$fd>;
2310                 close $fd;
2311                 print "</div>\n";
2312         }
2313         print "<table class=\"project_list\">\n" .
2314               "<tr>\n";
2315         $order ||= "project";
2316         if ($order eq "project") {
2317                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2318                 print "<th>Project</th>\n";
2319         } else {
2320                 print "<th>" .
2321                       $cgi->a({-href => href(project=>undef, order=>'project'),
2322                                -class => "header"}, "Project") .
2323                       "</th>\n";
2324         }
2325         if ($order eq "descr") {
2326                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2327                 print "<th>Description</th>\n";
2328         } else {
2329                 print "<th>" .
2330                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2331                                -class => "header"}, "Description") .
2332                       "</th>\n";
2333         }
2334         if ($order eq "owner") {
2335                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2336                 print "<th>Owner</th>\n";
2337         } else {
2338                 print "<th>" .
2339                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2340                                -class => "header"}, "Owner") .
2341                       "</th>\n";
2342         }
2343         if ($order eq "age") {
2344                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2345                 print "<th>Last Change</th>\n";
2346         } else {
2347                 print "<th>" .
2348                       $cgi->a({-href => href(project=>undef, order=>'age'),
2349                                -class => "header"}, "Last Change") .
2350                       "</th>\n";
2351         }
2352         print "<th></th>\n" .
2353               "</tr>\n";
2354         my $alternate = 1;
2355         foreach my $pr (@projects) {
2356                 if ($alternate) {
2357                         print "<tr class=\"dark\">\n";
2358                 } else {
2359                         print "<tr class=\"light\">\n";
2360                 }
2361                 $alternate ^= 1;
2362                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2363                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2364                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2365                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2366                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2367                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2368                       "<td class=\"link\">" .
2369                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2370                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2371                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2372                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2373                       "</td>\n" .
2374                       "</tr>\n";
2375         }
2376         print "</table>\n";
2377         git_footer_html();
2378 }
2379
2380 sub git_project_index {
2381         my @projects = git_get_projects_list();
2382
2383         print $cgi->header(
2384                 -type => 'text/plain',
2385                 -charset => 'utf-8',
2386                 -content_disposition => 'inline; filename="index.aux"');
2387
2388         foreach my $pr (@projects) {
2389                 if (!exists $pr->{'owner'}) {
2390                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2391                 }
2392
2393                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2394                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2395                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2396                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2397                 $path  =~ s/ /\+/g;
2398                 $owner =~ s/ /\+/g;
2399
2400                 print "$path $owner\n";
2401         }
2402 }
2403
2404 sub git_summary {
2405         my $descr = git_get_project_description($project) || "none";
2406         my $head = git_get_head_hash($project);
2407         my %co = parse_commit($head);
2408         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2409
2410         my $owner = git_get_project_owner($project);
2411
2412         my ($reflist, $refs) = git_get_refs_list();
2413
2414         my @taglist;
2415         my @headlist;
2416         foreach my $ref (@$reflist) {
2417                 if ($ref->{'name'} =~ s!^heads/!!) {
2418                         push @headlist, $ref;
2419                 } else {
2420                         $ref->{'name'} =~ s!^tags/!!;
2421                         push @taglist, $ref;
2422                 }
2423         }
2424
2425         git_header_html();
2426         git_print_page_nav('summary','', $head);
2427
2428         print "<div class=\"title\">&nbsp;</div>\n";
2429         print "<table cellspacing=\"0\">\n" .
2430               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2431               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2432               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2433         # use per project git URL list in $projectroot/$project/cloneurl
2434         # or make project git URL from git base URL and project name
2435         my $url_tag = "URL";
2436         my @url_list = git_get_project_url_list($project);
2437         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2438         foreach my $git_url (@url_list) {
2439                 next unless $git_url;
2440                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2441                 $url_tag = "";
2442         }
2443         print "</table>\n";
2444
2445         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2446                 git_get_head_hash($project)
2447                 or die_error(undef, "Open git-rev-list failed");
2448         my @revlist = map { chomp; $_ } <$fd>;
2449         close $fd;
2450         git_print_header_div('shortlog');
2451         git_shortlog_body(\@revlist, 0, 15, $refs,
2452                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2453
2454         if (@taglist) {
2455                 git_print_header_div('tags');
2456                 git_tags_body(\@taglist, 0, 15,
2457                               $cgi->a({-href => href(action=>"tags")}, "..."));
2458         }
2459
2460         if (@headlist) {
2461                 git_print_header_div('heads');
2462                 git_heads_body(\@headlist, $head, 0, 15,
2463                                $cgi->a({-href => href(action=>"heads")}, "..."));
2464         }
2465
2466         git_footer_html();
2467 }
2468
2469 sub git_tag {
2470         my $head = git_get_head_hash($project);
2471         git_header_html();
2472         git_print_page_nav('','', $head,undef,$head);
2473         my %tag = parse_tag($hash);
2474         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2475         print "<div class=\"title_text\">\n" .
2476               "<table cellspacing=\"0\">\n" .
2477               "<tr>\n" .
2478               "<td>object</td>\n" .
2479               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2480                                $tag{'object'}) . "</td>\n" .
2481               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2482                                               $tag{'type'}) . "</td>\n" .
2483               "</tr>\n";
2484         if (defined($tag{'author'})) {
2485                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2486                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2487                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2488                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2489                         "</td></tr>\n";
2490         }
2491         print "</table>\n\n" .
2492               "</div>\n";
2493         print "<div class=\"page_body\">";
2494         my $comment = $tag{'comment'};
2495         foreach my $line (@$comment) {
2496                 print esc_html($line) . "<br/>\n";
2497         }
2498         print "</div>\n";
2499         git_footer_html();
2500 }
2501
2502 sub git_blame2 {
2503         my $fd;
2504         my $ftype;
2505
2506         my ($have_blame) = gitweb_check_feature('blame');
2507         if (!$have_blame) {
2508                 die_error('403 Permission denied', "Permission denied");
2509         }
2510         die_error('404 Not Found', "File name not defined") if (!$file_name);
2511         $hash_base ||= git_get_head_hash($project);
2512         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2513         my %co = parse_commit($hash_base)
2514                 or die_error(undef, "Reading commit failed");
2515         if (!defined $hash) {
2516                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2517                         or die_error(undef, "Error looking up file");
2518         }
2519         $ftype = git_get_type($hash);
2520         if ($ftype !~ "blob") {
2521                 die_error("400 Bad Request", "Object is not a blob");
2522         }
2523         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2524                 or die_error(undef, "Open git-blame failed");
2525         git_header_html();
2526         my $formats_nav =
2527                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2528                         "blob") .
2529                 " | " .
2530                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2531                         "history") .
2532                 " | " .
2533                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2534                         "HEAD");
2535         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2536         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2537         git_print_page_path($file_name, $ftype, $hash_base);
2538         my @rev_color = (qw(light2 dark2));
2539         my $num_colors = scalar(@rev_color);
2540         my $current_color = 0;
2541         my $last_rev;
2542         print <<HTML;
2543 <div class="page_body">
2544 <table class="blame">
2545 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2546 HTML
2547         while (<$fd>) {
2548                 my ($full_rev, $author, $date, $lineno, $data) =
2549                         /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2550                 my $rev = substr($full_rev, 0, 8);
2551                 my $print_c8 = 0;
2552
2553                 if (!defined $last_rev) {
2554                         $last_rev = $full_rev;
2555                         $print_c8 = 1;
2556                 } elsif ($last_rev ne $full_rev) {
2557                         $last_rev = $full_rev;
2558                         $current_color = ++$current_color % $num_colors;
2559                         $print_c8 = 1;
2560                 }
2561                 print "<tr class=\"$rev_color[$current_color]\">\n";
2562                 print "<td class=\"sha1\"";
2563                 if ($print_c8 == 1) {
2564                         print " title=\"$author, $date\"";
2565                 }
2566                 print ">";
2567                 if ($print_c8 == 1) {
2568                         print $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2569                                       esc_html($rev));
2570                 }
2571                 print "</td>\n";
2572                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2573                       esc_html($lineno) . "</a></td>\n";
2574                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2575                 print "</tr>\n";
2576         }
2577         print "</table>\n";
2578         print "</div>";
2579         close $fd
2580                 or print "Reading blob failed\n";
2581         git_footer_html();
2582 }
2583
2584 sub git_blame {
2585         my $fd;
2586
2587         my ($have_blame) = gitweb_check_feature('blame');
2588         if (!$have_blame) {
2589                 die_error('403 Permission denied', "Permission denied");
2590         }
2591         die_error('404 Not Found', "File name not defined") if (!$file_name);
2592         $hash_base ||= git_get_head_hash($project);
2593         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2594         my %co = parse_commit($hash_base)
2595                 or die_error(undef, "Reading commit failed");
2596         if (!defined $hash) {
2597                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2598                         or die_error(undef, "Error lookup file");
2599         }
2600         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2601                 or die_error(undef, "Open git-annotate failed");
2602         git_header_html();
2603         my $formats_nav =
2604                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2605                         "blob") .
2606                 " | " .
2607                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2608                         "history") .
2609                 " | " .
2610                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2611                         "HEAD");
2612         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2613         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2614         git_print_page_path($file_name, 'blob', $hash_base);
2615         print "<div class=\"page_body\">\n";
2616         print <<HTML;
2617 <table class="blame">
2618   <tr>
2619     <th>Commit</th>
2620     <th>Age</th>
2621     <th>Author</th>
2622     <th>Line</th>
2623     <th>Data</th>
2624   </tr>
2625 HTML
2626         my @line_class = (qw(light dark));
2627         my $line_class_len = scalar (@line_class);
2628         my $line_class_num = $#line_class;
2629         while (my $line = <$fd>) {
2630                 my $long_rev;
2631                 my $short_rev;
2632                 my $author;
2633                 my $time;
2634                 my $lineno;
2635                 my $data;
2636                 my $age;
2637                 my $age_str;
2638                 my $age_class;
2639
2640                 chomp $line;
2641                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2642
2643                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2644                         $long_rev = $1;
2645                         $author   = $2;
2646                         $time     = $3;
2647                         $lineno   = $4;
2648                         $data     = $5;
2649                 } else {
2650                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2651                         next;
2652                 }
2653                 $short_rev  = substr ($long_rev, 0, 8);
2654                 $age        = time () - $time;
2655                 $age_str    = age_string ($age);
2656                 $age_str    =~ s/ /&nbsp;/g;
2657                 $age_class  = age_class($age);
2658                 $author     = esc_html ($author);
2659                 $author     =~ s/ /&nbsp;/g;
2660
2661                 $data = untabify($data);
2662                 $data = esc_html ($data);
2663
2664                 print <<HTML;
2665   <tr class="$line_class[$line_class_num]">
2666     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2667     <td class="$age_class">$age_str</td>
2668     <td>$author</td>
2669     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2670     <td class="pre">$data</td>
2671   </tr>
2672 HTML
2673         } # while (my $line = <$fd>)
2674         print "</table>\n\n";
2675         close $fd
2676                 or print "Reading blob failed.\n";
2677         print "</div>";
2678         git_footer_html();
2679 }
2680
2681 sub git_tags {
2682         my $head = git_get_head_hash($project);
2683         git_header_html();
2684         git_print_page_nav('','', $head,undef,$head);
2685         git_print_header_div('summary', $project);
2686
2687         my ($taglist) = git_get_refs_list("tags");
2688         if (@$taglist) {
2689                 git_tags_body($taglist);
2690         }
2691         git_footer_html();
2692 }
2693
2694 sub git_heads {
2695         my $head = git_get_head_hash($project);
2696         git_header_html();
2697         git_print_page_nav('','', $head,undef,$head);
2698         git_print_header_div('summary', $project);
2699
2700         my ($headlist) = git_get_refs_list("heads");
2701         if (@$headlist) {
2702                 git_heads_body($headlist, $head);
2703         }
2704         git_footer_html();
2705 }
2706
2707 sub git_blob_plain {
2708         my $expires;
2709
2710         if (!defined $hash) {
2711                 if (defined $file_name) {
2712                         my $base = $hash_base || git_get_head_hash($project);
2713                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2714                                 or die_error(undef, "Error lookup file");
2715                 } else {
2716                         die_error(undef, "No file name defined");
2717                 }
2718         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2719                 # blobs defined by non-textual hash id's can be cached
2720                 $expires = "+1d";
2721         }
2722
2723         my $type = shift;
2724         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2725                 or die_error(undef, "Couldn't cat $file_name, $hash");
2726
2727         $type ||= blob_mimetype($fd, $file_name);
2728
2729         # save as filename, even when no $file_name is given
2730         my $save_as = "$hash";
2731         if (defined $file_name) {
2732                 $save_as = $file_name;
2733         } elsif ($type =~ m/^text\//) {
2734                 $save_as .= '.txt';
2735         }
2736
2737         print $cgi->header(
2738                 -type => "$type",
2739                 -expires=>$expires,
2740                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2741         undef $/;
2742         binmode STDOUT, ':raw';
2743         print <$fd>;
2744         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2745         $/ = "\n";
2746         close $fd;
2747 }
2748
2749 sub git_blob {
2750         my $expires;
2751
2752         if (!defined $hash) {
2753                 if (defined $file_name) {
2754                         my $base = $hash_base || git_get_head_hash($project);
2755                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2756                                 or die_error(undef, "Error lookup file");
2757                 } else {
2758                         die_error(undef, "No file name defined");
2759                 }
2760         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2761                 # blobs defined by non-textual hash id's can be cached
2762                 $expires = "+1d";
2763         }
2764
2765         my ($have_blame) = gitweb_check_feature('blame');
2766         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2767                 or die_error(undef, "Couldn't cat $file_name, $hash");
2768         my $mimetype = blob_mimetype($fd, $file_name);
2769         if ($mimetype !~ m/^text\//) {
2770                 close $fd;
2771                 return git_blob_plain($mimetype);
2772         }
2773         git_header_html(undef, $expires);
2774         my $formats_nav = '';
2775         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2776                 if (defined $file_name) {
2777                         if ($have_blame) {
2778                                 $formats_nav .=
2779                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2780                                                                hash=>$hash, file_name=>$file_name)},
2781                                                 "blame") .
2782                                         " | ";
2783                         }
2784                         $formats_nav .=
2785                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2786                                                        hash=>$hash, file_name=>$file_name)},
2787                                         "history") .
2788                                 " | " .
2789                                 $cgi->a({-href => href(action=>"blob_plain",
2790                                                        hash=>$hash, file_name=>$file_name)},
2791                                         "raw") .
2792                                 " | " .
2793                                 $cgi->a({-href => href(action=>"blob",
2794                                                        hash_base=>"HEAD", file_name=>$file_name)},
2795                                         "HEAD");
2796                 } else {
2797                         $formats_nav .=
2798                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2799                 }
2800                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2801                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2802         } else {
2803                 print "<div class=\"page_nav\">\n" .
2804                       "<br/><br/></div>\n" .
2805                       "<div class=\"title\">$hash</div>\n";
2806         }
2807         git_print_page_path($file_name, "blob", $hash_base);
2808         print "<div class=\"page_body\">\n";
2809         my $nr;
2810         while (my $line = <$fd>) {
2811                 chomp $line;
2812                 $nr++;
2813                 $line = untabify($line);
2814                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2815                        $nr, $nr, $nr, esc_html($line);
2816         }
2817         close $fd
2818                 or print "Reading blob failed.\n";
2819         print "</div>";
2820         git_footer_html();
2821 }
2822
2823 sub git_tree {
2824         my $have_snapshot = gitweb_have_snapshot();
2825
2826         if (!defined $hash_base) {
2827                 $hash_base = "HEAD";
2828         }
2829         if (!defined $hash) {
2830                 if (defined $file_name) {
2831                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2832                 } else {
2833                         $hash = $hash_base;
2834                 }
2835         }
2836         $/ = "\0";
2837         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2838                 or die_error(undef, "Open git-ls-tree failed");
2839         my @entries = map { chomp; $_ } <$fd>;
2840         close $fd or die_error(undef, "Reading tree failed");
2841         $/ = "\n";
2842
2843         my $refs = git_get_references();
2844         my $ref = format_ref_marker($refs, $hash_base);
2845         git_header_html();
2846         my $base = "";
2847         my ($have_blame) = gitweb_check_feature('blame');
2848         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2849                 my @views_nav = ();
2850                 if (defined $file_name) {
2851                         push @views_nav,
2852                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2853                                                        hash=>$hash, file_name=>$file_name)},
2854                                         "history"),
2855                                 $cgi->a({-href => href(action=>"tree",
2856                                                        hash_base=>"HEAD", file_name=>$file_name)},
2857                                         "HEAD"),
2858                 }
2859                 if ($have_snapshot) {
2860                         # FIXME: Should be available when we have no hash base as well.
2861                         push @views_nav,
2862                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2863                                         "snapshot");
2864                 }
2865                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2866                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2867         } else {
2868                 undef $hash_base;
2869                 print "<div class=\"page_nav\">\n";
2870                 print "<br/><br/></div>\n";
2871                 print "<div class=\"title\">$hash</div>\n";
2872         }
2873         if (defined $file_name) {
2874                 $base = esc_html("$file_name/");
2875         }
2876         git_print_page_path($file_name, 'tree', $hash_base);
2877         print "<div class=\"page_body\">\n";
2878         print "<table cellspacing=\"0\">\n";
2879         my $alternate = 1;
2880         foreach my $line (@entries) {
2881                 my %t = parse_ls_tree_line($line, -z => 1);
2882
2883                 if ($alternate) {
2884                         print "<tr class=\"dark\">\n";
2885                 } else {
2886                         print "<tr class=\"light\">\n";
2887                 }
2888                 $alternate ^= 1;
2889
2890                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2891
2892                 print "</tr>\n";
2893         }
2894         print "</table>\n" .
2895               "</div>";
2896         git_footer_html();
2897 }
2898
2899 sub git_snapshot {
2900         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2901         my $have_snapshot = (defined $ctype && defined $suffix);
2902         if (!$have_snapshot) {
2903                 die_error('403 Permission denied', "Permission denied");
2904         }
2905
2906         if (!defined $hash) {
2907                 $hash = git_get_head_hash($project);
2908         }
2909
2910         my $filename = basename($project) . "-$hash.tar.$suffix";
2911
2912         print $cgi->header(
2913                 -type => 'application/x-tar',
2914                 -content_encoding => $ctype,
2915                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2916                 -status => '200 OK');
2917
2918         my $git = git_cmd_str();
2919         my $name = $project;
2920         $name =~ s/\047/\047\\\047\047/g;
2921         open my $fd, "-|",
2922         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
2923                 or die_error(undef, "Execute git-tar-tree failed.");
2924         binmode STDOUT, ':raw';
2925         print <$fd>;
2926         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2927         close $fd;
2928
2929 }
2930
2931 sub git_log {
2932         my $head = git_get_head_hash($project);
2933         if (!defined $hash) {
2934                 $hash = $head;
2935         }
2936         if (!defined $page) {
2937                 $page = 0;
2938         }
2939         my $refs = git_get_references();
2940
2941         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2942         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2943                 or die_error(undef, "Open git-rev-list failed");
2944         my @revlist = map { chomp; $_ } <$fd>;
2945         close $fd;
2946
2947         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2948
2949         git_header_html();
2950         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2951
2952         if (!@revlist) {
2953                 my %co = parse_commit($hash);
2954
2955                 git_print_header_div('summary', $project);
2956                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2957         }
2958         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2959                 my $commit = $revlist[$i];
2960                 my $ref = format_ref_marker($refs, $commit);
2961                 my %co = parse_commit($commit);
2962                 next if !%co;
2963                 my %ad = parse_date($co{'author_epoch'});
2964                 git_print_header_div('commit',
2965                                "<span class=\"age\">$co{'age_string'}</span>" .
2966                                esc_html($co{'title'}) . $ref,
2967                                $commit);
2968                 print "<div class=\"title_text\">\n" .
2969                       "<div class=\"log_link\">\n" .
2970                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2971                       " | " .
2972                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2973                       " | " .
2974                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2975                       "<br/>\n" .
2976                       "</div>\n" .
2977                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2978                       "</div>\n";
2979
2980                 print "<div class=\"log_body\">\n";
2981                 git_print_simplified_log($co{'comment'});
2982                 print "</div>\n";
2983         }
2984         git_footer_html();
2985 }
2986
2987 sub git_commit {
2988         my %co = parse_commit($hash);
2989         if (!%co) {
2990                 die_error(undef, "Unknown commit object");
2991         }
2992         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2993         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2994
2995         my $parent = $co{'parent'};
2996         if (!defined $parent) {
2997                 $parent = "--root";
2998         }
2999         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3000                 or die_error(undef, "Open git-diff-tree failed");
3001         my @difftree = map { chomp; $_ } <$fd>;
3002         close $fd or die_error(undef, "Reading git-diff-tree failed");
3003
3004         # non-textual hash id's can be cached
3005         my $expires;
3006         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3007                 $expires = "+1d";
3008         }
3009         my $refs = git_get_references();
3010         my $ref = format_ref_marker($refs, $co{'id'});
3011
3012         my $have_snapshot = gitweb_have_snapshot();
3013
3014         my @views_nav = ();
3015         if (defined $file_name && defined $co{'parent'}) {
3016                 push @views_nav,
3017                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3018                                 "blame");
3019         }
3020         if (defined $co{'parent'}) {
3021                 push @views_nav,
3022                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
3023                         $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
3024         }
3025         git_header_html(undef, $expires);
3026         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3027                            $hash, $co{'tree'}, $hash,
3028                            join (' | ', @views_nav));
3029
3030         if (defined $co{'parent'}) {
3031                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3032         } else {
3033                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3034         }
3035         print "<div class=\"title_text\">\n" .
3036               "<table cellspacing=\"0\">\n";
3037         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3038               "<tr>" .
3039               "<td></td><td> $ad{'rfc2822'}";
3040         if ($ad{'hour_local'} < 6) {
3041                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3042                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3043         } else {
3044                 printf(" (%02d:%02d %s)",
3045                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3046         }
3047         print "</td>" .
3048               "</tr>\n";
3049         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3050         print "<tr><td></td><td> $cd{'rfc2822'}" .
3051               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3052               "</td></tr>\n";
3053         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3054         print "<tr>" .
3055               "<td>tree</td>" .
3056               "<td class=\"sha1\">" .
3057               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3058                        class => "list"}, $co{'tree'}) .
3059               "</td>" .
3060               "<td class=\"link\">" .
3061               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3062                       "tree");
3063         if ($have_snapshot) {
3064                 print " | " .
3065                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3066         }
3067         print "</td>" .
3068               "</tr>\n";
3069         my $parents = $co{'parents'};
3070         foreach my $par (@$parents) {
3071                 print "<tr>" .
3072                       "<td>parent</td>" .
3073                       "<td class=\"sha1\">" .
3074                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3075                                class => "list"}, $par) .
3076                       "</td>" .
3077                       "<td class=\"link\">" .
3078                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3079                       " | " .
3080                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3081                       "</td>" .
3082                       "</tr>\n";
3083         }
3084         print "</table>".
3085               "</div>\n";
3086
3087         print "<div class=\"page_body\">\n";
3088         git_print_log($co{'comment'});
3089         print "</div>\n";
3090
3091         git_difftree_body(\@difftree, $hash, $parent);
3092
3093         git_footer_html();
3094 }
3095
3096 sub git_blobdiff {
3097         my $format = shift || 'html';
3098
3099         my $fd;
3100         my @difftree;
3101         my %diffinfo;
3102         my $expires;
3103
3104         # preparing $fd and %diffinfo for git_patchset_body
3105         # new style URI
3106         if (defined $hash_base && defined $hash_parent_base) {
3107                 if (defined $file_name) {
3108                         # read raw output
3109                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3110                                 "--", $file_name
3111                                 or die_error(undef, "Open git-diff-tree failed");
3112                         @difftree = map { chomp; $_ } <$fd>;
3113                         close $fd
3114                                 or die_error(undef, "Reading git-diff-tree failed");
3115                         @difftree
3116                                 or die_error('404 Not Found', "Blob diff not found");
3117
3118                 } elsif (defined $hash &&
3119                          $hash =~ /[0-9a-fA-F]{40}/) {
3120                         # try to find filename from $hash
3121
3122                         # read filtered raw output
3123                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3124                                 or die_error(undef, "Open git-diff-tree failed");
3125                         @difftree =
3126                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3127                                 # $hash == to_id
3128                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3129                                 map { chomp; $_ } <$fd>;
3130                         close $fd
3131                                 or die_error(undef, "Reading git-diff-tree failed");
3132                         @difftree
3133                                 or die_error('404 Not Found', "Blob diff not found");
3134
3135                 } else {
3136                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3137                 }
3138
3139                 if (@difftree > 1) {
3140                         die_error('404 Not Found', "Ambiguous blob diff specification");
3141                 }
3142
3143                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3144                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3145                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3146
3147                 $hash_parent ||= $diffinfo{'from_id'};
3148                 $hash        ||= $diffinfo{'to_id'};
3149
3150                 # non-textual hash id's can be cached
3151                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3152                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3153                         $expires = '+1d';
3154                 }
3155
3156                 # open patch output
3157                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3158                         '-p', $hash_parent_base, $hash_base,
3159                         "--", $file_name
3160                         or die_error(undef, "Open git-diff-tree failed");
3161         }
3162
3163         # old/legacy style URI
3164         if (!%diffinfo && # if new style URI failed
3165             defined $hash && defined $hash_parent) {
3166                 # fake git-diff-tree raw output
3167                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3168                 $diffinfo{'from_id'} = $hash_parent;
3169                 $diffinfo{'to_id'}   = $hash;
3170                 if (defined $file_name) {
3171                         if (defined $file_parent) {
3172                                 $diffinfo{'status'} = '2';
3173                                 $diffinfo{'from_file'} = $file_parent;
3174                                 $diffinfo{'to_file'}   = $file_name;
3175                         } else { # assume not renamed
3176                                 $diffinfo{'status'} = '1';
3177                                 $diffinfo{'from_file'} = $file_name;
3178                                 $diffinfo{'to_file'}   = $file_name;
3179                         }
3180                 } else { # no filename given
3181                         $diffinfo{'status'} = '2';
3182                         $diffinfo{'from_file'} = $hash_parent;
3183                         $diffinfo{'to_file'}   = $hash;
3184                 }
3185
3186                 # non-textual hash id's can be cached
3187                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3188                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3189                         $expires = '+1d';
3190                 }
3191
3192                 # open patch output
3193                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3194                         or die_error(undef, "Open git-diff failed");
3195         } else  {
3196                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3197                         unless %diffinfo;
3198         }
3199
3200         # header
3201         if ($format eq 'html') {
3202                 my $formats_nav =
3203                         $cgi->a({-href => href(action=>"blobdiff_plain",
3204                                                hash=>$hash, hash_parent=>$hash_parent,
3205                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3206                                                file_name=>$file_name, file_parent=>$file_parent)},
3207                                 "raw");
3208                 git_header_html(undef, $expires);
3209                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3210                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3211                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3212                 } else {
3213                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3214                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3215                 }
3216                 if (defined $file_name) {
3217                         git_print_page_path($file_name, "blob", $hash_base);
3218                 } else {
3219                         print "<div class=\"page_path\"></div>\n";
3220                 }
3221
3222         } elsif ($format eq 'plain') {
3223                 print $cgi->header(
3224                         -type => 'text/plain',
3225                         -charset => 'utf-8',
3226                         -expires => $expires,
3227                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3228
3229                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3230
3231         } else {
3232                 die_error(undef, "Unknown blobdiff format");
3233         }
3234
3235         # patch
3236         if ($format eq 'html') {
3237                 print "<div class=\"page_body\">\n";
3238
3239                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3240                 close $fd;
3241
3242                 print "</div>\n"; # class="page_body"
3243                 git_footer_html();
3244
3245         } else {
3246                 while (my $line = <$fd>) {
3247                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3248                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3249
3250                         print $line;
3251
3252                         last if $line =~ m!^\+\+\+!;
3253                 }
3254                 local $/ = undef;
3255                 print <$fd>;
3256                 close $fd;
3257         }
3258 }
3259
3260 sub git_blobdiff_plain {
3261         git_blobdiff('plain');
3262 }
3263
3264 sub git_commitdiff {
3265         my $format = shift || 'html';
3266         my %co = parse_commit($hash);
3267         if (!%co) {
3268                 die_error(undef, "Unknown commit object");
3269         }
3270         if (!defined $hash_parent) {
3271                 $hash_parent = $co{'parent'} || '--root';
3272         }
3273
3274         # read commitdiff
3275         my $fd;
3276         my @difftree;
3277         if ($format eq 'html') {
3278                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3279                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3280                         or die_error(undef, "Open git-diff-tree failed");
3281
3282                 while (chomp(my $line = <$fd>)) {
3283                         # empty line ends raw part of diff-tree output
3284                         last unless $line;
3285                         push @difftree, $line;
3286                 }
3287
3288         } elsif ($format eq 'plain') {
3289                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3290                         '-p', $hash_parent, $hash
3291                         or die_error(undef, "Open git-diff-tree failed");
3292
3293         } else {
3294                 die_error(undef, "Unknown commitdiff format");
3295         }
3296
3297         # non-textual hash id's can be cached
3298         my $expires;
3299         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3300                 $expires = "+1d";
3301         }
3302
3303         # write commit message
3304         if ($format eq 'html') {
3305                 my $refs = git_get_references();
3306                 my $ref = format_ref_marker($refs, $co{'id'});
3307                 my $formats_nav =
3308                         $cgi->a({-href => href(action=>"commitdiff_plain",
3309                                                hash=>$hash, hash_parent=>$hash_parent)},
3310                                 "raw");
3311
3312                 git_header_html(undef, $expires);
3313                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3314                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3315                 git_print_authorship(\%co);
3316                 print "<div class=\"page_body\">\n";
3317                 print "<div class=\"log\">\n";
3318                 git_print_simplified_log($co{'comment'}, 1); # skip title
3319                 print "</div>\n"; # class="log"
3320
3321         } elsif ($format eq 'plain') {
3322                 my $refs = git_get_references("tags");
3323                 my $tagname = git_get_rev_name_tags($hash);
3324                 my $filename = basename($project) . "-$hash.patch";
3325
3326                 print $cgi->header(
3327                         -type => 'text/plain',
3328                         -charset => 'utf-8',
3329                         -expires => $expires,
3330                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3331                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3332                 print <<TEXT;
3333 From: $co{'author'}
3334 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3335 Subject: $co{'title'}
3336 TEXT
3337                 print "X-Git-Tag: $tagname\n" if $tagname;
3338                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3339
3340                 foreach my $line (@{$co{'comment'}}) {
3341                         print "$line\n";
3342                 }
3343                 print "---\n\n";
3344         }
3345
3346         # write patch
3347         if ($format eq 'html') {
3348                 git_difftree_body(\@difftree, $hash, $hash_parent);
3349                 print "<br/>\n";
3350
3351                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3352                 close $fd;
3353                 print "</div>\n"; # class="page_body"
3354                 git_footer_html();
3355
3356         } elsif ($format eq 'plain') {
3357                 local $/ = undef;
3358                 print <$fd>;
3359                 close $fd
3360                         or print "Reading git-diff-tree failed\n";
3361         }
3362 }
3363
3364 sub git_commitdiff_plain {
3365         git_commitdiff('plain');
3366 }
3367
3368 sub git_history {
3369         if (!defined $hash_base) {
3370                 $hash_base = git_get_head_hash($project);
3371         }
3372         if (!defined $page) {
3373                 $page = 0;
3374         }
3375         my $ftype;
3376         my %co = parse_commit($hash_base);
3377         if (!%co) {
3378                 die_error(undef, "Unknown commit object");
3379         }
3380
3381         my $refs = git_get_references();
3382         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3383
3384         if (!defined $hash && defined $file_name) {
3385                 $hash = git_get_hash_by_path($hash_base, $file_name);
3386         }
3387         if (defined $hash) {
3388                 $ftype = git_get_type($hash);
3389         }
3390
3391         open my $fd, "-|",
3392                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3393                         or die_error(undef, "Open git-rev-list-failed");
3394         my @revlist = map { chomp; $_ } <$fd>;
3395         close $fd
3396                 or die_error(undef, "Reading git-rev-list failed");
3397
3398         my $paging_nav = '';
3399         if ($page > 0) {
3400                 $paging_nav .=
3401                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3402                                                file_name=>$file_name)},
3403                                 "first");
3404                 $paging_nav .= " &sdot; " .
3405                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3406                                                file_name=>$file_name, page=>$page-1),
3407                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3408         } else {
3409                 $paging_nav .= "first";
3410                 $paging_nav .= " &sdot; prev";
3411         }
3412         if ($#revlist >= (100 * ($page+1)-1)) {
3413                 $paging_nav .= " &sdot; " .
3414                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3415                                                file_name=>$file_name, page=>$page+1),
3416                                  -accesskey => "n", -title => "Alt-n"}, "next");
3417         } else {
3418                 $paging_nav .= " &sdot; next";
3419         }
3420         my $next_link = '';
3421         if ($#revlist >= (100 * ($page+1)-1)) {
3422                 $next_link =
3423                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3424                                                file_name=>$file_name, page=>$page+1),
3425                                  -title => "Alt-n"}, "next");
3426         }
3427
3428         git_header_html();
3429         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3430         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3431         git_print_page_path($file_name, $ftype, $hash_base);
3432
3433         git_history_body(\@revlist, ($page * 100), $#revlist,
3434                          $refs, $hash_base, $ftype, $next_link);
3435
3436         git_footer_html();
3437 }
3438
3439 sub git_search {
3440         if (!defined $searchtext) {
3441                 die_error(undef, "Text field empty");
3442         }
3443         if (!defined $hash) {
3444                 $hash = git_get_head_hash($project);
3445         }
3446         my %co = parse_commit($hash);
3447         if (!%co) {
3448                 die_error(undef, "Unknown commit object");
3449         }
3450
3451         my $commit_search = 1;
3452         my $author_search = 0;
3453         my $committer_search = 0;
3454         my $pickaxe_search = 0;
3455         if ($searchtext =~ s/^author\\://i) {
3456                 $author_search = 1;
3457         } elsif ($searchtext =~ s/^committer\\://i) {
3458                 $committer_search = 1;
3459         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3460                 $commit_search = 0;
3461                 $pickaxe_search = 1;
3462
3463                 # pickaxe may take all resources of your box and run for several minutes
3464                 # with every query - so decide by yourself how public you make this feature
3465                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3466                 if (!$have_pickaxe) {
3467                         die_error('403 Permission denied', "Permission denied");
3468                 }
3469         }
3470         git_header_html();
3471         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3472         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3473
3474         print "<table cellspacing=\"0\">\n";
3475         my $alternate = 1;
3476         if ($commit_search) {
3477                 $/ = "\0";
3478                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3479                 while (my $commit_text = <$fd>) {
3480                         if (!grep m/$searchtext/i, $commit_text) {
3481                                 next;
3482                         }
3483                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3484                                 next;
3485                         }
3486                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3487                                 next;
3488                         }
3489                         my @commit_lines = split "\n", $commit_text;
3490                         my %co = parse_commit(undef, \@commit_lines);
3491                         if (!%co) {
3492                                 next;
3493                         }
3494                         if ($alternate) {
3495                                 print "<tr class=\"dark\">\n";
3496                         } else {
3497                                 print "<tr class=\"light\">\n";
3498                         }
3499                         $alternate ^= 1;
3500                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3501                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3502                               "<td>" .
3503                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3504                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3505                         my $comment = $co{'comment'};
3506                         foreach my $line (@$comment) {
3507                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3508                                         my $lead = esc_html($1) || "";
3509                                         $lead = chop_str($lead, 30, 10);
3510                                         my $match = esc_html($2) || "";
3511                                         my $trail = esc_html($3) || "";
3512                                         $trail = chop_str($trail, 30, 10);
3513                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3514                                         print chop_str($text, 80, 5) . "<br/>\n";
3515                                 }
3516                         }
3517                         print "</td>\n" .
3518                               "<td class=\"link\">" .
3519                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3520                               " | " .
3521                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3522                         print "</td>\n" .
3523                               "</tr>\n";
3524                 }
3525                 close $fd;
3526         }
3527
3528         if ($pickaxe_search) {
3529                 $/ = "\n";
3530                 my $git_command = git_cmd_str();
3531                 open my $fd, "-|", "$git_command rev-list $hash | " .
3532                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3533                 undef %co;
3534                 my @files;
3535                 while (my $line = <$fd>) {
3536                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3537                                 my %set;
3538                                 $set{'file'} = $6;
3539                                 $set{'from_id'} = $3;
3540                                 $set{'to_id'} = $4;
3541                                 $set{'id'} = $set{'to_id'};
3542                                 if ($set{'id'} =~ m/0{40}/) {
3543                                         $set{'id'} = $set{'from_id'};
3544                                 }
3545                                 if ($set{'id'} =~ m/0{40}/) {
3546                                         next;
3547                                 }
3548                                 push @files, \%set;
3549                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3550                                 if (%co) {
3551                                         if ($alternate) {
3552                                                 print "<tr class=\"dark\">\n";
3553                                         } else {
3554                                                 print "<tr class=\"light\">\n";
3555                                         }
3556                                         $alternate ^= 1;
3557                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3558                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3559                                               "<td>" .
3560                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3561                                                       -class => "list subject"},
3562                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3563                                         while (my $setref = shift @files) {
3564                                                 my %set = %$setref;
3565                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3566                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3567                                                               -class => "list"},
3568                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3569                                                       "<br/>\n";
3570                                         }
3571                                         print "</td>\n" .
3572                                               "<td class=\"link\">" .
3573                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3574                                               " | " .
3575                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3576                                         print "</td>\n" .
3577                                               "</tr>\n";
3578                                 }
3579                                 %co = parse_commit($1);
3580                         }
3581                 }
3582                 close $fd;
3583         }
3584         print "</table>\n";
3585         git_footer_html();
3586 }
3587
3588 sub git_shortlog {
3589         my $head = git_get_head_hash($project);
3590         if (!defined $hash) {
3591                 $hash = $head;
3592         }
3593         if (!defined $page) {
3594                 $page = 0;
3595         }
3596         my $refs = git_get_references();
3597
3598         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3599         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3600                 or die_error(undef, "Open git-rev-list failed");
3601         my @revlist = map { chomp; $_ } <$fd>;
3602         close $fd;
3603
3604         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3605         my $next_link = '';
3606         if ($#revlist >= (100 * ($page+1)-1)) {
3607                 $next_link =
3608                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3609                                  -title => "Alt-n"}, "next");
3610         }
3611
3612
3613         git_header_html();
3614         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3615         git_print_header_div('summary', $project);
3616
3617         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3618
3619         git_footer_html();
3620 }
3621
3622 ## ......................................................................
3623 ## feeds (RSS, OPML)
3624
3625 sub git_rss {
3626         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3627         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3628                 or die_error(undef, "Open git-rev-list failed");
3629         my @revlist = map { chomp; $_ } <$fd>;
3630         close $fd or die_error(undef, "Reading git-rev-list failed");
3631         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3632         print <<XML;
3633 <?xml version="1.0" encoding="utf-8"?>
3634 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3635 <channel>
3636 <title>$project $my_uri $my_url</title>
3637 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3638 <description>$project log</description>
3639 <language>en</language>
3640 XML
3641
3642         for (my $i = 0; $i <= $#revlist; $i++) {
3643                 my $commit = $revlist[$i];
3644                 my %co = parse_commit($commit);
3645                 # we read 150, we always show 30 and the ones more recent than 48 hours
3646                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3647                         last;
3648                 }
3649                 my %cd = parse_date($co{'committer_epoch'});
3650                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3651                         $co{'parent'}, $co{'id'}
3652                         or next;
3653                 my @difftree = map { chomp; $_ } <$fd>;
3654                 close $fd
3655                         or next;
3656                 print "<item>\n" .
3657                       "<title>" .
3658                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3659                       "</title>\n" .
3660                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3661                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3662                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3663                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3664                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3665                       "<content:encoded>" .
3666                       "<![CDATA[\n";
3667                 my $comment = $co{'comment'};
3668                 foreach my $line (@$comment) {
3669                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3670                         print "$line<br/>\n";
3671                 }
3672                 print "<br/>\n";
3673                 foreach my $line (@difftree) {
3674                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3675                                 next;
3676                         }
3677                         my $file = esc_html(unquote($7));
3678                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3679                         print "$file<br/>\n";
3680                 }
3681                 print "]]>\n" .
3682                       "</content:encoded>\n" .
3683                       "</item>\n";
3684         }
3685         print "</channel></rss>";
3686 }
3687
3688 sub git_opml {
3689         my @list = git_get_projects_list();
3690
3691         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3692         print <<XML;
3693 <?xml version="1.0" encoding="utf-8"?>
3694 <opml version="1.0">
3695 <head>
3696   <title>$site_name Git OPML Export</title>
3697 </head>
3698 <body>
3699 <outline text="git RSS feeds">
3700 XML
3701
3702         foreach my $pr (@list) {
3703                 my %proj = %$pr;
3704                 my $head = git_get_head_hash($proj{'path'});
3705                 if (!defined $head) {
3706                         next;
3707                 }
3708                 $git_dir = "$projectroot/$proj{'path'}";
3709                 my %co = parse_commit($head);
3710                 if (!%co) {
3711                         next;
3712                 }
3713
3714                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3715                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3716                 my $html = "$my_url?p=$proj{'path'};a=summary";
3717                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3718         }
3719         print <<XML;
3720 </outline>
3721 </body>
3722 </opml>
3723 XML
3724 }