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 (72x27 size)
  58 our $logo = "++GITWEB_LOGO++";
  59 # URI of GIT favicon, assumed to be image/png type
  60 our $favicon = "++GITWEB_FAVICON++";
  61
  62 # URI and label (title) of GIT logo link
  63 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  64 #our $logo_label = "git documentation";
  65 our $logo_url = "http://git.or.cz/";
  66 our $logo_label = "git homepage";
  67
  68 # source of projects list
  69 our $projects_list = "++GITWEB_LIST++";
  70
  71 # show repository only if this file exists
  72 # (only effective if this variable evaluates to true)
  73 our $export_ok = "++GITWEB_EXPORT_OK++";
  74
  75 # only allow viewing of repositories also shown on the overview page
  76 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  77
  78 # list of git base URLs used for URL to where fetch project from,
  79 # i.e. full URL is "$git_base_url/$project"
  80 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  81
  82 # default blob_plain mimetype and default charset for text/plain blob
  83 our $default_blob_plain_mimetype = 'text/plain';
  84 our $default_text_plain_charset  = undef;
  85
  86 # file to use for guessing MIME types before trying /etc/mime.types
  87 # (relative to the current git repository)
  88 our $mimetypes_file = undef;
  89
  90 # You define site-wide feature defaults here; override them with
  91 # $GITWEB_CONFIG as necessary.
  92 our %feature = (
  93         # feature => {
  94         #       'sub' => feature-sub (subroutine),
  95         #       'override' => allow-override (boolean),
  96         #       'default' => [ default options...] (array reference)}
  97         #
  98         # if feature is overridable (it means that allow-override has true value,
  99         # then feature-sub will be called with default options as parameters;
 100         # return value of feature-sub indicates if to enable specified feature
 101         #
 102         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 103
 104         # Enable the 'blame' blob view, showing the last commit that modified
 105         # each line in the file. This can be very CPU-intensive.
 106
 107         # To enable system wide have in $GITWEB_CONFIG
 108         # $feature{'blame'}{'default'} = [1];
 109         # To have project specific config enable override in $GITWEB_CONFIG
 110         # $feature{'blame'}{'override'} = 1;
 111         # and in project config gitweb.blame = 0|1;
 112         'blame' => {
 113                 'sub' => \&feature_blame,
 114                 'override' => 0,
 115                 'default' => [0]},
 116
 117         # Enable the 'snapshot' link, providing a compressed tarball of any
 118         # tree. This can potentially generate high traffic if you have large
 119         # project.
 120
 121         # To disable system wide have in $GITWEB_CONFIG
 122         # $feature{'snapshot'}{'default'} = [undef];
 123         # To have project specific config enable override in $GITWEB_CONFIG
 124         # $feature{'blame'}{'override'} = 1;
 125         # and in project config gitweb.snapshot = none|gzip|bzip2;
 126         'snapshot' => {
 127                 'sub' => \&feature_snapshot,
 128                 'override' => 0,
 129                 #         => [content-encoding, suffix, program]
 130                 'default' => ['x-gzip', 'gz', 'gzip']},
 131
 132         # Enable the pickaxe search, which will list the commits that modified
 133         # a given string in a file. This can be practical and quite faster
 134         # alternative to 'blame', but still potentially CPU-intensive.
 135
 136         # To enable system wide have in $GITWEB_CONFIG
 137         # $feature{'pickaxe'}{'default'} = [1];
 138         # To have project specific config enable override in $GITWEB_CONFIG
 139         # $feature{'pickaxe'}{'override'} = 1;
 140         # and in project config gitweb.pickaxe = 0|1;
 141         'pickaxe' => {
 142                 'sub' => \&feature_pickaxe,
 143                 'override' => 0,
 144                 'default' => [1]},
 145
 146         # Make gitweb use an alternative format of the URLs which can be
 147         # more readable and natural-looking: project name is embedded
 148         # directly in the path and the query string contains other
 149         # auxiliary information. All gitweb installations recognize
 150         # URL in either format; this configures in which formats gitweb
 151         # generates links.
 152
 153         # To enable system wide have in $GITWEB_CONFIG
 154         # $feature{'pathinfo'}{'default'} = [1];
 155         # Project specific override is not supported.
 156
 157         # Note that you will need to change the default location of CSS,
 158         # favicon, logo and possibly other files to an absolute URL. Also,
 159         # if gitweb.cgi serves as your indexfile, you will need to force
 160         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 161         'pathinfo' => {
 162                 'override' => 0,
 163                 'default' => [0]},
 164 );
 165
 166 sub gitweb_check_feature {
 167         my ($name) = @_;
 168         return unless exists $feature{$name};
 169         my ($sub, $override, @defaults) = (
 170                 $feature{$name}{'sub'},
 171                 $feature{$name}{'override'},
 172                 @{$feature{$name}{'default'}});
 173         if (!$override) { return @defaults; }
 174         if (!defined $sub) {
 175                 warn "feature $name is not overrideable";
 176                 return @defaults;
 177         }
 178         return $sub->(@defaults);
 179 }
 180
 181 sub feature_blame {
 182         my ($val) = git_get_project_config('blame', '--bool');
 183
 184         if ($val eq 'true') {
 185                 return 1;
 186         } elsif ($val eq 'false') {
 187                 return 0;
 188         }
 189
 190         return $_[0];
 191 }
 192
 193 sub feature_snapshot {
 194         my ($ctype, $suffix, $command) = @_;
 195
 196         my ($val) = git_get_project_config('snapshot');
 197
 198         if ($val eq 'gzip') {
 199                 return ('x-gzip', 'gz', 'gzip');
 200         } elsif ($val eq 'bzip2') {
 201                 return ('x-bzip2', 'bz2', 'bzip2');
 202         } elsif ($val eq 'none') {
 203                 return ();
 204         }
 205
 206         return ($ctype, $suffix, $command);
 207 }
 208
 209 sub gitweb_have_snapshot {
 210         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 211         my $have_snapshot = (defined $ctype && defined $suffix);
 212
 213         return $have_snapshot;
 214 }
 215
 216 sub feature_pickaxe {
 217         my ($val) = git_get_project_config('pickaxe', '--bool');
 218
 219         if ($val eq 'true') {
 220                 return (1);
 221         } elsif ($val eq 'false') {
 222                 return (0);
 223         }
 224
 225         return ($_[0]);
 226 }
 227
 228 # checking HEAD file with -e is fragile if the repository was
 229 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 230 # and then pruned.
 231 sub check_head_link {
 232         my ($dir) = @_;
 233         my $headfile = "$dir/HEAD";
 234         return ((-e $headfile) ||
 235                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 236 }
 237
 238 sub check_export_ok {
 239         my ($dir) = @_;
 240         return (check_head_link($dir) &&
 241                 (!$export_ok || -e "$dir/$export_ok"));
 242 }
 243
 244 # rename detection options for git-diff and git-diff-tree
 245 # - default is '-M', with the cost proportional to
 246 #   (number of removed files) * (number of new files).
 247 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 248 #   (number of changed files + number of removed files) * (number of new files)
 249 # - even more costly is '-C', '--find-copies-harder' with cost
 250 #   (number of files in the original tree) * (number of new files)
 251 # - one might want to include '-B' option, e.g. '-B', '-M'
 252 our @diff_opts = ('-M'); # taken from git_commit
 253
 254 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 255 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 256
 257 # version of the core git binary
 258 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 259
 260 $projects_list ||= $projectroot;
 261
 262 # ======================================================================
 263 # input validation and dispatch
 264 our $action = $cgi->param('a');
 265 if (defined $action) {
 266         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 267                 die_error(undef, "Invalid action parameter");
 268         }
 269 }
 270
 271 # parameters which are pathnames
 272 our $project = $cgi->param('p');
 273 if (defined $project) {
 274         if (!validate_pathname($project) ||
 275             !(-d "$projectroot/$project") ||
 276             !check_head_link("$projectroot/$project") ||
 277             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 278             ($strict_export && !project_in_list($project))) {
 279                 undef $project;
 280                 die_error(undef, "No such project");
 281         }
 282 }
 283
 284 our $file_name = $cgi->param('f');
 285 if (defined $file_name) {
 286         if (!validate_pathname($file_name)) {
 287                 die_error(undef, "Invalid file parameter");
 288         }
 289 }
 290
 291 our $file_parent = $cgi->param('fp');
 292 if (defined $file_parent) {
 293         if (!validate_pathname($file_parent)) {
 294                 die_error(undef, "Invalid file parent parameter");
 295         }
 296 }
 297
 298 # parameters which are refnames
 299 our $hash = $cgi->param('h');
 300 if (defined $hash) {
 301         if (!validate_refname($hash)) {
 302                 die_error(undef, "Invalid hash parameter");
 303         }
 304 }
 305
 306 our $hash_parent = $cgi->param('hp');
 307 if (defined $hash_parent) {
 308         if (!validate_refname($hash_parent)) {
 309                 die_error(undef, "Invalid hash parent parameter");
 310         }
 311 }
 312
 313 our $hash_base = $cgi->param('hb');
 314 if (defined $hash_base) {
 315         if (!validate_refname($hash_base)) {
 316                 die_error(undef, "Invalid hash base parameter");
 317         }
 318 }
 319
 320 our $hash_parent_base = $cgi->param('hpb');
 321 if (defined $hash_parent_base) {
 322         if (!validate_refname($hash_parent_base)) {
 323                 die_error(undef, "Invalid hash parent base parameter");
 324         }
 325 }
 326
 327 # other parameters
 328 our $page = $cgi->param('pg');
 329 if (defined $page) {
 330         if ($page =~ m/[^0-9]/) {
 331                 die_error(undef, "Invalid page parameter");
 332         }
 333 }
 334
 335 our $searchtext = $cgi->param('s');
 336 if (defined $searchtext) {
 337         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 338                 die_error(undef, "Invalid search parameter");
 339         }
 340         $searchtext = quotemeta $searchtext;
 341 }
 342
 343 # now read PATH_INFO and use it as alternative to parameters
 344 sub evaluate_path_info {
 345         return if defined $project;
 346         my $path_info = $ENV{"PATH_INFO"};
 347         return if !$path_info;
 348         $path_info =~ s,^/+,,;
 349         return if !$path_info;
 350         # find which part of PATH_INFO is project
 351         $project = $path_info;
 352         $project =~ s,/+$,,;
 353         while ($project && !check_head_link("$projectroot/$project")) {
 354                 $project =~ s,/*[^/]*$,,;
 355         }
 356         # validate project
 357         $project = validate_pathname($project);
 358         if (!$project ||
 359             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 360             ($strict_export && !project_in_list($project))) {
 361                 undef $project;
 362                 return;
 363         }
 364         # do not change any parameters if an action is given using the query string
 365         return if $action;
 366         $path_info =~ s,^$project/*,,;
 367         my ($refname, $pathname) = split(/:/, $path_info, 2);
 368         if (defined $pathname) {
 369                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 370                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 371                 $pathname =~ s,^/+,,;
 372                 if (!$pathname || substr($pathname, -1) eq "/") {
 373                         $action  ||= "tree";
 374                         $pathname =~ s,/$,,;
 375                 } else {
 376                         $action  ||= "blob_plain";
 377                 }
 378                 $hash_base ||= validate_refname($refname);
 379                 $file_name ||= validate_pathname($pathname);
 380         } elsif (defined $refname) {
 381                 # we got "project.git/branch"
 382                 $action ||= "shortlog";
 383                 $hash   ||= validate_refname($refname);
 384         }
 385 }
 386 evaluate_path_info();
 387
 388 # path to the current git repository
 389 our $git_dir;
 390 $git_dir = "$projectroot/$project" if $project;
 391
 392 # dispatch
 393 my %actions = (
 394         "blame" => \&git_blame2,
 395         "blobdiff" => \&git_blobdiff,
 396         "blobdiff_plain" => \&git_blobdiff_plain,
 397         "blob" => \&git_blob,
 398         "blob_plain" => \&git_blob_plain,
 399         "commitdiff" => \&git_commitdiff,
 400         "commitdiff_plain" => \&git_commitdiff_plain,
 401         "commit" => \&git_commit,
 402         "heads" => \&git_heads,
 403         "history" => \&git_history,
 404         "log" => \&git_log,
 405         "rss" => \&git_rss,
 406         "search" => \&git_search,
 407         "shortlog" => \&git_shortlog,
 408         "summary" => \&git_summary,
 409         "tag" => \&git_tag,
 410         "tags" => \&git_tags,
 411         "tree" => \&git_tree,
 412         "snapshot" => \&git_snapshot,
 413         # those below don't need $project
 414         "opml" => \&git_opml,
 415         "project_list" => \&git_project_list,
 416         "project_index" => \&git_project_index,
 417 );
 418
 419 if (defined $project) {
 420         $action ||= 'summary';
 421 } else {
 422         $action ||= 'project_list';
 423 }
 424 if (!defined($actions{$action})) {
 425         die_error(undef, "Unknown action");
 426 }
 427 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 428     !$project) {
 429         die_error(undef, "Project needed");
 430 }
 431 $actions{$action}->();
 432 exit;
 433
 434 ## ======================================================================
 435 ## action links
 436
 437 sub href(%) {
 438         my %params = @_;
 439         my $href = $my_uri;
 440
 441         # XXX: Warning: If you touch this, check the search form for updating,
 442         # too.
 443
 444         my @mapping = (
 445                 project => "p",
 446                 action => "a",
 447                 file_name => "f",
 448                 file_parent => "fp",
 449                 hash => "h",
 450                 hash_parent => "hp",
 451                 hash_base => "hb",
 452                 hash_parent_base => "hpb",
 453                 page => "pg",
 454                 order => "o",
 455                 searchtext => "s",
 456         );
 457         my %mapping = @mapping;
 458
 459         $params{'project'} = $project unless exists $params{'project'};
 460
 461         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 462         if ($use_pathinfo) {
 463                 # use PATH_INFO for project name
 464                 $href .= "/$params{'project'}" if defined $params{'project'};
 465                 delete $params{'project'};
 466
 467                 # Summary just uses the project path URL
 468                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 469                         delete $params{'action'};
 470                 }
 471         }
 472
 473         # now encode the parameters explicitly
 474         my @result = ();
 475         for (my $i = 0; $i < @mapping; $i += 2) {
 476                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 477                 if (defined $params{$name}) {
 478                         push @result, $symbol . "=" . esc_param($params{$name});
 479                 }
 480         }
 481         $href .= "?" . join(';', @result) if scalar @result;
 482
 483         return $href;
 484 }
 485
 486
 487 ## ======================================================================
 488 ## validation, quoting/unquoting and escaping
 489
 490 sub validate_pathname {
 491         my $input = shift || return undef;
 492
 493         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 494         # at the beginning, at the end, and between slashes.
 495         # also this catches doubled slashes
 496         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 497                 return undef;
 498         }
 499         # no null characters
 500         if ($input =~ m!\0!) {
 501                 return undef;
 502         }
 503         return $input;
 504 }
 505
 506 sub validate_refname {
 507         my $input = shift || return undef;
 508
 509         # textual hashes are O.K.
 510         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 511                 return $input;
 512         }
 513         # it must be correct pathname
 514         $input = validate_pathname($input)
 515                 or return undef;
 516         # restrictions on ref name according to git-check-ref-format
 517         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 518                 return undef;
 519         }
 520         return $input;
 521 }
 522
 523 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 524 sub to_utf8 {
 525         my $str = shift;
 526         return decode("utf8", $str, Encode::FB_DEFAULT);
 527 }
 528
 529 # quote unsafe chars, but keep the slash, even when it's not
 530 # correct, but quoted slashes look too horrible in bookmarks
 531 sub esc_param {
 532         my $str = shift;
 533         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 534         $str =~ s/\+/%2B/g;
 535         $str =~ s/ /\+/g;
 536         return $str;
 537 }
 538
 539 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 540 sub esc_url {
 541         my $str = shift;
 542         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 543         $str =~ s/\+/%2B/g;
 544         $str =~ s/ /\+/g;
 545         return $str;
 546 }
 547
 548 # replace invalid utf8 character with SUBSTITUTION sequence
 549 sub esc_html {
 550         my $str = shift;
 551         $str = to_utf8($str);
 552         $str = escapeHTML($str);
 553         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 554         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 555         return $str;
 556 }
 557
 558 # git may return quoted and escaped filenames
 559 sub unquote {
 560         my $str = shift;
 561         if ($str =~ m/^"(.*)"$/) {
 562                 $str = $1;
 563                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 564         }
 565         return $str;
 566 }
 567
 568 # escape tabs (convert tabs to spaces)
 569 sub untabify {
 570         my $line = shift;
 571
 572         while ((my $pos = index($line, "\t")) != -1) {
 573                 if (my $count = (8 - ($pos % 8))) {
 574                         my $spaces = ' ' x $count;
 575                         $line =~ s/\t/$spaces/;
 576                 }
 577         }
 578
 579         return $line;
 580 }
 581
 582 sub project_in_list {
 583         my $project = shift;
 584         my @list = git_get_projects_list();
 585         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 586 }
 587
 588 ## ----------------------------------------------------------------------
 589 ## HTML aware string manipulation
 590
 591 sub chop_str {
 592         my $str = shift;
 593         my $len = shift;
 594         my $add_len = shift || 10;
 595
 596         # allow only $len chars, but don't cut a word if it would fit in $add_len
 597         # if it doesn't fit, cut it if it's still longer than the dots we would add
 598         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 599         my $body = $1;
 600         my $tail = $2;
 601         if (length($tail) > 4) {
 602                 $tail = " ...";
 603                 $body =~ s/&[^;]*$//; # remove chopped character entities
 604         }
 605         return "$body$tail";
 606 }
 607
 608 ## ----------------------------------------------------------------------
 609 ## functions returning short strings
 610
 611 # CSS class for given age value (in seconds)
 612 sub age_class {
 613         my $age = shift;
 614
 615         if ($age < 60*60*2) {
 616                 return "age0";
 617         } elsif ($age < 60*60*24*2) {
 618                 return "age1";
 619         } else {
 620                 return "age2";
 621         }
 622 }
 623
 624 # convert age in seconds to "nn units ago" string
 625 sub age_string {
 626         my $age = shift;
 627         my $age_str;
 628
 629         if ($age > 60*60*24*365*2) {
 630                 $age_str = (int $age/60/60/24/365);
 631                 $age_str .= " years ago";
 632         } elsif ($age > 60*60*24*(365/12)*2) {
 633                 $age_str = int $age/60/60/24/(365/12);
 634                 $age_str .= " months ago";
 635         } elsif ($age > 60*60*24*7*2) {
 636                 $age_str = int $age/60/60/24/7;
 637                 $age_str .= " weeks ago";
 638         } elsif ($age > 60*60*24*2) {
 639                 $age_str = int $age/60/60/24;
 640                 $age_str .= " days ago";
 641         } elsif ($age > 60*60*2) {
 642                 $age_str = int $age/60/60;
 643                 $age_str .= " hours ago";
 644         } elsif ($age > 60*2) {
 645                 $age_str = int $age/60;
 646                 $age_str .= " min ago";
 647         } elsif ($age > 2) {
 648                 $age_str = int $age;
 649                 $age_str .= " sec ago";
 650         } else {
 651                 $age_str .= " right now";
 652         }
 653         return $age_str;
 654 }
 655
 656 # convert file mode in octal to symbolic file mode string
 657 sub mode_str {
 658         my $mode = oct shift;
 659
 660         if (S_ISDIR($mode & S_IFMT)) {
 661                 return 'drwxr-xr-x';
 662         } elsif (S_ISLNK($mode)) {
 663                 return 'lrwxrwxrwx';
 664         } elsif (S_ISREG($mode)) {
 665                 # git cares only about the executable bit
 666                 if ($mode & S_IXUSR) {
 667                         return '-rwxr-xr-x';
 668                 } else {
 669                         return '-rw-r--r--';
 670                 };
 671         } else {
 672                 return '----------';
 673         }
 674 }
 675
 676 # convert file mode in octal to file type string
 677 sub file_type {
 678         my $mode = shift;
 679
 680         if ($mode !~ m/^[0-7]+$/) {
 681                 return $mode;
 682         } else {
 683                 $mode = oct $mode;
 684         }
 685
 686         if (S_ISDIR($mode & S_IFMT)) {
 687                 return "directory";
 688         } elsif (S_ISLNK($mode)) {
 689                 return "symlink";
 690         } elsif (S_ISREG($mode)) {
 691                 return "file";
 692         } else {
 693                 return "unknown";
 694         }
 695 }
 696
 697 ## ----------------------------------------------------------------------
 698 ## functions returning short HTML fragments, or transforming HTML fragments
 699 ## which don't beling to other sections
 700
 701 # format line of commit message or tag comment
 702 sub format_log_line_html {
 703         my $line = shift;
 704
 705         $line = esc_html($line);
 706         $line =~ s/ /&nbsp;/g;
 707         if ($line =~ m/([0-9a-fA-F]{40})/) {
 708                 my $hash_text = $1;
 709                 if (git_get_type($hash_text) eq "commit") {
 710                         my $link =
 711                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 712                                         -class => "text"}, $hash_text);
 713                         $line =~ s/$hash_text/$link/;
 714                 }
 715         }
 716         return $line;
 717 }
 718
 719 # format marker of refs pointing to given object
 720 sub format_ref_marker {
 721         my ($refs, $id) = @_;
 722         my $markers = '';
 723
 724         if (defined $refs->{$id}) {
 725                 foreach my $ref (@{$refs->{$id}}) {
 726                         my ($type, $name) = qw();
 727                         # e.g. tags/v2.6.11 or heads/next
 728                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 729                                 $type = $1;
 730                                 $name = $2;
 731                         } else {
 732                                 $type = "ref";
 733                                 $name = $ref;
 734                         }
 735
 736                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 737                 }
 738         }
 739
 740         if ($markers) {
 741                 return ' <span class="refs">'. $markers . '</span>';
 742         } else {
 743                 return "";
 744         }
 745 }
 746
 747 # format, perhaps shortened and with markers, title line
 748 sub format_subject_html {
 749         my ($long, $short, $href, $extra) = @_;
 750         $extra = '' unless defined($extra);
 751
 752         if (length($short) < length($long)) {
 753                 return $cgi->a({-href => $href, -class => "list subject",
 754                                 -title => to_utf8($long)},
 755                        esc_html($short) . $extra);
 756         } else {
 757                 return $cgi->a({-href => $href, -class => "list subject"},
 758                        esc_html($long)  . $extra);
 759         }
 760 }
 761
 762 sub format_diff_line {
 763         my $line = shift;
 764         my $char = substr($line, 0, 1);
 765         my $diff_class = "";
 766
 767         chomp $line;
 768
 769         if ($char eq '+') {
 770                 $diff_class = " add";
 771         } elsif ($char eq "-") {
 772                 $diff_class = " rem";
 773         } elsif ($char eq "@") {
 774                 $diff_class = " chunk_header";
 775         } elsif ($char eq "\\") {
 776                 $diff_class = " incomplete";
 777         }
 778         $line = untabify($line);
 779         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 780 }
 781
 782 ## ----------------------------------------------------------------------
 783 ## git utility subroutines, invoking git commands
 784
 785 # returns path to the core git executable and the --git-dir parameter as list
 786 sub git_cmd {
 787         return $GIT, '--git-dir='.$git_dir;
 788 }
 789
 790 # returns path to the core git executable and the --git-dir parameter as string
 791 sub git_cmd_str {
 792         return join(' ', git_cmd());
 793 }
 794
 795 # get HEAD ref of given project as hash
 796 sub git_get_head_hash {
 797         my $project = shift;
 798         my $o_git_dir = $git_dir;
 799         my $retval = undef;
 800         $git_dir = "$projectroot/$project";
 801         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 802                 my $head = <$fd>;
 803                 close $fd;
 804                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 805                         $retval = $1;
 806                 }
 807         }
 808         if (defined $o_git_dir) {
 809                 $git_dir = $o_git_dir;
 810         }
 811         return $retval;
 812 }
 813
 814 # get type of given object
 815 sub git_get_type {
 816         my $hash = shift;
 817
 818         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 819         my $type = <$fd>;
 820         close $fd or return;
 821         chomp $type;
 822         return $type;
 823 }
 824
 825 sub git_get_project_config {
 826         my ($key, $type) = @_;
 827
 828         return unless ($key);
 829         $key =~ s/^gitweb\.//;
 830         return if ($key =~ m/\W/);
 831
 832         my @x = (git_cmd(), 'repo-config');
 833         if (defined $type) { push @x, $type; }
 834         push @x, "--get";
 835         push @x, "gitweb.$key";
 836         my $val = qx(@x);
 837         chomp $val;
 838         return ($val);
 839 }
 840
 841 # get hash of given path at given ref
 842 sub git_get_hash_by_path {
 843         my $base = shift;
 844         my $path = shift || return undef;
 845         my $type = shift;
 846
 847         $path =~ s,/+$,,;
 848
 849         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 850                 or die_error(undef, "Open git-ls-tree failed");
 851         my $line = <$fd>;
 852         close $fd or return undef;
 853
 854         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 855         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 856         if (defined $type && $type ne $2) {
 857                 # type doesn't match
 858                 return undef;
 859         }
 860         return $3;
 861 }
 862
 863 ## ......................................................................
 864 ## git utility functions, directly accessing git repository
 865
 866 sub git_get_project_description {
 867         my $path = shift;
 868
 869         open my $fd, "$projectroot/$path/description" or return undef;
 870         my $descr = <$fd>;
 871         close $fd;
 872         chomp $descr;
 873         return $descr;
 874 }
 875
 876 sub git_get_project_url_list {
 877         my $path = shift;
 878
 879         open my $fd, "$projectroot/$path/cloneurl" or return;
 880         my @git_project_url_list = map { chomp; $_ } <$fd>;
 881         close $fd;
 882
 883         return wantarray ? @git_project_url_list : \@git_project_url_list;
 884 }
 885
 886 sub git_get_projects_list {
 887         my @list;
 888
 889         if (-d $projects_list) {
 890                 # search in directory
 891                 my $dir = $projects_list;
 892                 my $pfxlen = length("$dir");
 893
 894                 File::Find::find({
 895                         follow_fast => 1, # follow symbolic links
 896                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 897                         wanted => sub {
 898                                 # skip project-list toplevel, if we get it.
 899                                 return if (m!^[/.]$!);
 900                                 # only directories can be git repositories
 901                                 return unless (-d $_);
 902
 903                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 904                                 # we check related file in $projectroot
 905                                 if (check_export_ok("$projectroot/$subdir")) {
 906                                         push @list, { path => $subdir };
 907                                         $File::Find::prune = 1;
 908                                 }
 909                         },
 910                 }, "$dir");
 911
 912         } elsif (-f $projects_list) {
 913                 # read from file(url-encoded):
 914                 # 'git%2Fgit.git Linus+Torvalds'
 915                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 916                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 917                 open my ($fd), $projects_list or return;
 918                 while (my $line = <$fd>) {
 919                         chomp $line;
 920                         my ($path, $owner) = split ' ', $line;
 921                         $path = unescape($path);
 922                         $owner = unescape($owner);
 923                         if (!defined $path) {
 924                                 next;
 925                         }
 926                         if (check_export_ok("$projectroot/$path")) {
 927                                 my $pr = {
 928                                         path => $path,
 929                                         owner => to_utf8($owner),
 930                                 };
 931                                 push @list, $pr
 932                         }
 933                 }
 934                 close $fd;
 935         }
 936         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 937         return @list;
 938 }
 939
 940 sub git_get_project_owner {
 941         my $project = shift;
 942         my $owner;
 943
 944         return undef unless $project;
 945
 946         # read from file (url-encoded):
 947         # 'git%2Fgit.git Linus+Torvalds'
 948         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 949         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 950         if (-f $projects_list) {
 951                 open (my $fd , $projects_list);
 952                 while (my $line = <$fd>) {
 953                         chomp $line;
 954                         my ($pr, $ow) = split ' ', $line;
 955                         $pr = unescape($pr);
 956                         $ow = unescape($ow);
 957                         if ($pr eq $project) {
 958                                 $owner = to_utf8($ow);
 959                                 last;
 960                         }
 961                 }
 962                 close $fd;
 963         }
 964         if (!defined $owner) {
 965                 $owner = get_file_owner("$projectroot/$project");
 966         }
 967
 968         return $owner;
 969 }
 970
 971 sub git_get_references {
 972         my $type = shift || "";
 973         my %refs;
 974         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 975         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 976         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 977                 or return;
 978
 979         while (my $line = <$fd>) {
 980                 chomp $line;
 981                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 982                         if (defined $refs{$1}) {
 983                                 push @{$refs{$1}}, $2;
 984                         } else {
 985                                 $refs{$1} = [ $2 ];
 986                         }
 987                 }
 988         }
 989         close $fd or return;
 990         return \%refs;
 991 }
 992
 993 sub git_get_rev_name_tags {
 994         my $hash = shift || return undef;
 995
 996         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 997                 or return;
 998         my $name_rev = <$fd>;
 999         close $fd;
1000
1001         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1002                 return $1;
1003         } else {
1004                 # catches also '$hash undefined' output
1005                 return undef;
1006         }
1007 }
1008
1009 ## ----------------------------------------------------------------------
1010 ## parse to hash functions
1011
1012 sub parse_date {
1013         my $epoch = shift;
1014         my $tz = shift || "-0000";
1015
1016         my %date;
1017         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1018         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1019         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1020         $date{'hour'} = $hour;
1021         $date{'minute'} = $min;
1022         $date{'mday'} = $mday;
1023         $date{'day'} = $days[$wday];
1024         $date{'month'} = $months[$mon];
1025         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1026                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1027         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1028                              $mday, $months[$mon], $hour ,$min;
1029
1030         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1031         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1032         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1033         $date{'hour_local'} = $hour;
1034         $date{'minute_local'} = $min;
1035         $date{'tz_local'} = $tz;
1036         $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1037                                    1900+$year, $mon+1, $mday,
1038                                    $hour, $min, $sec, $tz);
1039         return %date;
1040 }
1041
1042 sub parse_tag {
1043         my $tag_id = shift;
1044         my %tag;
1045         my @comment;
1046
1047         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1048         $tag{'id'} = $tag_id;
1049         while (my $line = <$fd>) {
1050                 chomp $line;
1051                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1052                         $tag{'object'} = $1;
1053                 } elsif ($line =~ m/^type (.+)$/) {
1054                         $tag{'type'} = $1;
1055                 } elsif ($line =~ m/^tag (.+)$/) {
1056                         $tag{'name'} = $1;
1057                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1058                         $tag{'author'} = $1;
1059                         $tag{'epoch'} = $2;
1060                         $tag{'tz'} = $3;
1061                 } elsif ($line =~ m/--BEGIN/) {
1062                         push @comment, $line;
1063                         last;
1064                 } elsif ($line eq "") {
1065                         last;
1066                 }
1067         }
1068         push @comment, <$fd>;
1069         $tag{'comment'} = \@comment;
1070         close $fd or return;
1071         if (!defined $tag{'name'}) {
1072                 return
1073         };
1074         return %tag
1075 }
1076
1077 sub git_get_last_activity {
1078         my ($path) = @_;
1079         my $fd;
1080
1081         $git_dir = "$projectroot/$path";
1082         open($fd, "-|", git_cmd(), 'for-each-ref',
1083              '--format=%(refname) %(committer)',
1084              '--sort=-committerdate',
1085              'refs/heads') or return;
1086         my $most_recent = <$fd>;
1087         close $fd or return;
1088         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1089                 my $timestamp = $1;
1090                 my $age = time - $timestamp;
1091                 return ($age, age_string($age));
1092         }
1093 }
1094
1095 sub parse_commit {
1096         my $commit_id = shift;
1097         my $commit_text = shift;
1098
1099         my @commit_lines;
1100         my %co;
1101
1102         if (defined $commit_text) {
1103                 @commit_lines = @$commit_text;
1104         } else {
1105                 local $/ = "\0";
1106                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1107                         or return;
1108                 @commit_lines = split '\n', <$fd>;
1109                 close $fd or return;
1110                 pop @commit_lines;
1111         }
1112         my $header = shift @commit_lines;
1113         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1114                 return;
1115         }
1116         ($co{'id'}, my @parents) = split ' ', $header;
1117         $co{'parents'} = \@parents;
1118         $co{'parent'} = $parents[0];
1119         while (my $line = shift @commit_lines) {
1120                 last if $line eq "\n";
1121                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1122                         $co{'tree'} = $1;
1123                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1124                         $co{'author'} = $1;
1125                         $co{'author_epoch'} = $2;
1126                         $co{'author_tz'} = $3;
1127                         if ($co{'author'} =~ m/^([^<]+) </) {
1128                                 $co{'author_name'} = $1;
1129                         } else {
1130                                 $co{'author_name'} = $co{'author'};
1131                         }
1132                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1133                         $co{'committer'} = $1;
1134                         $co{'committer_epoch'} = $2;
1135                         $co{'committer_tz'} = $3;
1136                         $co{'committer_name'} = $co{'committer'};
1137                         $co{'committer_name'} =~ s/ <.*//;
1138                 }
1139         }
1140         if (!defined $co{'tree'}) {
1141                 return;
1142         };
1143
1144         foreach my $title (@commit_lines) {
1145                 $title =~ s/^    //;
1146                 if ($title ne "") {
1147                         $co{'title'} = chop_str($title, 80, 5);
1148                         # remove leading stuff of merges to make the interesting part visible
1149                         if (length($title) > 50) {
1150                                 $title =~ s/^Automatic //;
1151                                 $title =~ s/^merge (of|with) /Merge ... /i;
1152                                 if (length($title) > 50) {
1153                                         $title =~ s/(http|rsync):\/\///;
1154                                 }
1155                                 if (length($title) > 50) {
1156                                         $title =~ s/(master|www|rsync)\.//;
1157                                 }
1158                                 if (length($title) > 50) {
1159                                         $title =~ s/kernel.org:?//;
1160                                 }
1161                                 if (length($title) > 50) {
1162                                         $title =~ s/\/pub\/scm//;
1163                                 }
1164                         }
1165                         $co{'title_short'} = chop_str($title, 50, 5);
1166                         last;
1167                 }
1168         }
1169         if ($co{'title'} eq "") {
1170                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1171         }
1172         # remove added spaces
1173         foreach my $line (@commit_lines) {
1174                 $line =~ s/^    //;
1175         }
1176         $co{'comment'} = \@commit_lines;
1177
1178         my $age = time - $co{'committer_epoch'};
1179         $co{'age'} = $age;
1180         $co{'age_string'} = age_string($age);
1181         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1182         if ($age > 60*60*24*7*2) {
1183                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1184                 $co{'age_string_age'} = $co{'age_string'};
1185         } else {
1186                 $co{'age_string_date'} = $co{'age_string'};
1187                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1188         }
1189         return %co;
1190 }
1191
1192 # parse ref from ref_file, given by ref_id, with given type
1193 sub parse_ref {
1194         my $ref_file = shift;
1195         my $ref_id = shift;
1196         my $type = shift || git_get_type($ref_id);
1197         my %ref_item;
1198
1199         $ref_item{'type'} = $type;
1200         $ref_item{'id'} = $ref_id;
1201         $ref_item{'epoch'} = 0;
1202         $ref_item{'age'} = "unknown";
1203         if ($type eq "tag") {
1204                 my %tag = parse_tag($ref_id);
1205                 $ref_item{'comment'} = $tag{'comment'};
1206                 if ($tag{'type'} eq "commit") {
1207                         my %co = parse_commit($tag{'object'});
1208                         $ref_item{'epoch'} = $co{'committer_epoch'};
1209                         $ref_item{'age'} = $co{'age_string'};
1210                 } elsif (defined($tag{'epoch'})) {
1211                         my $age = time - $tag{'epoch'};
1212                         $ref_item{'epoch'} = $tag{'epoch'};
1213                         $ref_item{'age'} = age_string($age);
1214                 }
1215                 $ref_item{'reftype'} = $tag{'type'};
1216                 $ref_item{'name'} = $tag{'name'};
1217                 $ref_item{'refid'} = $tag{'object'};
1218         } elsif ($type eq "commit"){
1219                 my %co = parse_commit($ref_id);
1220                 $ref_item{'reftype'} = "commit";
1221                 $ref_item{'name'} = $ref_file;
1222                 $ref_item{'title'} = $co{'title'};
1223                 $ref_item{'refid'} = $ref_id;
1224                 $ref_item{'epoch'} = $co{'committer_epoch'};
1225                 $ref_item{'age'} = $co{'age_string'};
1226         } else {
1227                 $ref_item{'reftype'} = $type;
1228                 $ref_item{'name'} = $ref_file;
1229                 $ref_item{'refid'} = $ref_id;
1230         }
1231
1232         return %ref_item;
1233 }
1234
1235 # parse line of git-diff-tree "raw" output
1236 sub parse_difftree_raw_line {
1237         my $line = shift;
1238         my %res;
1239
1240         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1241         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1242         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1243                 $res{'from_mode'} = $1;
1244                 $res{'to_mode'} = $2;
1245                 $res{'from_id'} = $3;
1246                 $res{'to_id'} = $4;
1247                 $res{'status'} = $5;
1248                 $res{'similarity'} = $6;
1249                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1250                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1251                 } else {
1252                         $res{'file'} = unquote($7);
1253                 }
1254         }
1255         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1256         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1257                 $res{'commit'} = $1;
1258         }
1259
1260         return wantarray ? %res : \%res;
1261 }
1262
1263 # parse line of git-ls-tree output
1264 sub parse_ls_tree_line ($;%) {
1265         my $line = shift;
1266         my %opts = @_;
1267         my %res;
1268
1269         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1270         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1271
1272         $res{'mode'} = $1;
1273         $res{'type'} = $2;
1274         $res{'hash'} = $3;
1275         if ($opts{'-z'}) {
1276                 $res{'name'} = $4;
1277         } else {
1278                 $res{'name'} = unquote($4);
1279         }
1280
1281         return wantarray ? %res : \%res;
1282 }
1283
1284 ## ......................................................................
1285 ## parse to array of hashes functions
1286
1287 sub git_get_refs_list {
1288         my $type = shift || "";
1289         my %refs;
1290         my @reflist;
1291
1292         my @refs;
1293         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1294                 or return;
1295         while (my $line = <$fd>) {
1296                 chomp $line;
1297                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1298                         if (defined $refs{$1}) {
1299                                 push @{$refs{$1}}, $2;
1300                         } else {
1301                                 $refs{$1} = [ $2 ];
1302                         }
1303
1304                         if (! $4) { # unpeeled, direct reference
1305                                 push @refs, { hash => $1, name => $3 }; # without type
1306                         } elsif ($3 eq $refs[-1]{'name'}) {
1307                                 # most likely a tag is followed by its peeled
1308                                 # (deref) one, and when that happens we know the
1309                                 # previous one was of type 'tag'.
1310                                 $refs[-1]{'type'} = "tag";
1311                         }
1312                 }
1313         }
1314         close $fd;
1315
1316         foreach my $ref (@refs) {
1317                 my $ref_file = $ref->{'name'};
1318                 my $ref_id   = $ref->{'hash'};
1319
1320                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1321                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1322
1323                 push @reflist, \%ref_item;
1324         }
1325         # sort refs by age
1326         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1327         return (\@reflist, \%refs);
1328 }
1329
1330 ## ----------------------------------------------------------------------
1331 ## filesystem-related functions
1332
1333 sub get_file_owner {
1334         my $path = shift;
1335
1336         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1337         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1338         if (!defined $gcos) {
1339                 return undef;
1340         }
1341         my $owner = $gcos;
1342         $owner =~ s/[,;].*$//;
1343         return to_utf8($owner);
1344 }
1345
1346 ## ......................................................................
1347 ## mimetype related functions
1348
1349 sub mimetype_guess_file {
1350         my $filename = shift;
1351         my $mimemap = shift;
1352         -r $mimemap or return undef;
1353
1354         my %mimemap;
1355         open(MIME, $mimemap) or return undef;
1356         while (<MIME>) {
1357                 next if m/^#/; # skip comments
1358                 my ($mime, $exts) = split(/\t+/);
1359                 if (defined $exts) {
1360                         my @exts = split(/\s+/, $exts);
1361                         foreach my $ext (@exts) {
1362                                 $mimemap{$ext} = $mime;
1363                         }
1364                 }
1365         }
1366         close(MIME);
1367
1368         $filename =~ /\.([^.]*)$/;
1369         return $mimemap{$1};
1370 }
1371
1372 sub mimetype_guess {
1373         my $filename = shift;
1374         my $mime;
1375         $filename =~ /\./ or return undef;
1376
1377         if ($mimetypes_file) {
1378                 my $file = $mimetypes_file;
1379                 if ($file !~ m!^/!) { # if it is relative path
1380                         # it is relative to project
1381                         $file = "$projectroot/$project/$file";
1382                 }
1383                 $mime = mimetype_guess_file($filename, $file);
1384         }
1385         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1386         return $mime;
1387 }
1388
1389 sub blob_mimetype {
1390         my $fd = shift;
1391         my $filename = shift;
1392
1393         if ($filename) {
1394                 my $mime = mimetype_guess($filename);
1395                 $mime and return $mime;
1396         }
1397
1398         # just in case
1399         return $default_blob_plain_mimetype unless $fd;
1400
1401         if (-T $fd) {
1402                 return 'text/plain' .
1403                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1404         } elsif (! $filename) {
1405                 return 'application/octet-stream';
1406         } elsif ($filename =~ m/\.png$/i) {
1407                 return 'image/png';
1408         } elsif ($filename =~ m/\.gif$/i) {
1409                 return 'image/gif';
1410         } elsif ($filename =~ m/\.jpe?g$/i) {
1411                 return 'image/jpeg';
1412         } else {
1413                 return 'application/octet-stream';
1414         }
1415 }
1416
1417 ## ======================================================================
1418 ## functions printing HTML: header, footer, error page
1419
1420 sub git_header_html {
1421         my $status = shift || "200 OK";
1422         my $expires = shift;
1423
1424         my $title = "$site_name git";
1425         if (defined $project) {
1426                 $title .= " - $project";
1427                 if (defined $action) {
1428                         $title .= "/$action";
1429                         if (defined $file_name) {
1430                                 $title .= " - " . esc_html($file_name);
1431                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1432                                         $title .= "/";
1433                                 }
1434                         }
1435                 }
1436         }
1437         my $content_type;
1438         # require explicit support from the UA if we are to send the page as
1439         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1440         # we have to do this because MSIE sometimes globs '*/*', pretending to
1441         # support xhtml+xml but choking when it gets what it asked for.
1442         if (defined $cgi->http('HTTP_ACCEPT') &&
1443             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1444             $cgi->Accept('application/xhtml+xml') != 0) {
1445                 $content_type = 'application/xhtml+xml';
1446         } else {
1447                 $content_type = 'text/html';
1448         }
1449         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1450                            -status=> $status, -expires => $expires);
1451         print <<EOF;
1452 <?xml version="1.0" encoding="utf-8"?>
1453 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1454 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1455 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1456 <!-- git core binaries version $git_version -->
1457 <head>
1458 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1459 <meta name="generator" content="gitweb/$version git/$git_version"/>
1460 <meta name="robots" content="index, nofollow"/>
1461 <title>$title</title>
1462 EOF
1463 # print out each stylesheet that exist
1464         if (defined $stylesheet) {
1465 #provides backwards capability for those people who define style sheet in a config file
1466                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1467         } else {
1468                 foreach my $stylesheet (@stylesheets) {
1469                         next unless $stylesheet;
1470                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1471                 }
1472         }
1473         if (defined $project) {
1474                 printf('<link rel="alternate" title="%s log" '.
1475                        'href="%s" type="application/rss+xml"/>'."\n",
1476                        esc_param($project), href(action=>"rss"));
1477         } else {
1478                 printf('<link rel="alternate" title="%s projects list" '.
1479                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1480                        $site_name, href(project=>undef, action=>"project_index"));
1481                 printf('<link rel="alternate" title="%s projects logs" '.
1482                        'href="%s" type="text/x-opml"/>'."\n",
1483                        $site_name, href(project=>undef, action=>"opml"));
1484         }
1485         if (defined $favicon) {
1486                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1487         }
1488
1489         print "</head>\n" .
1490               "<body>\n";
1491
1492         if (-f $site_header) {
1493                 open (my $fd, $site_header);
1494                 print <$fd>;
1495                 close $fd;
1496         }
1497
1498         print "<div class=\"page_header\">\n" .
1499               $cgi->a({-href => esc_url($logo_url),
1500                        -title => $logo_label},
1501                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1502         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1503         if (defined $project) {
1504                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1505                 if (defined $action) {
1506                         print " / $action";
1507                 }
1508                 print "\n";
1509                 if (!defined $searchtext) {
1510                         $searchtext = "";
1511                 }
1512                 my $search_hash;
1513                 if (defined $hash_base) {
1514                         $search_hash = $hash_base;
1515                 } elsif (defined $hash) {
1516                         $search_hash = $hash;
1517                 } else {
1518                         $search_hash = "HEAD";
1519                 }
1520                 $cgi->param("a", "search");
1521                 $cgi->param("h", $search_hash);
1522                 $cgi->param("p", $project);
1523                 print $cgi->startform(-method => "get", -action => $my_uri) .
1524                       "<div class=\"search\">\n" .
1525                       $cgi->hidden(-name => "p") . "\n" .
1526                       $cgi->hidden(-name => "a") . "\n" .
1527                       $cgi->hidden(-name => "h") . "\n" .
1528                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1529                       "</div>" .
1530                       $cgi->end_form() . "\n";
1531         }
1532         print "</div>\n";
1533 }
1534
1535 sub git_footer_html {
1536         print "<div class=\"page_footer\">\n";
1537         if (defined $project) {
1538                 my $descr = git_get_project_description($project);
1539                 if (defined $descr) {
1540                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1541                 }
1542                 print $cgi->a({-href => href(action=>"rss"),
1543                               -class => "rss_logo"}, "RSS") . "\n";
1544         } else {
1545                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1546                               -class => "rss_logo"}, "OPML") . " ";
1547                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1548                               -class => "rss_logo"}, "TXT") . "\n";
1549         }
1550         print "</div>\n" ;
1551
1552         if (-f $site_footer) {
1553                 open (my $fd, $site_footer);
1554                 print <$fd>;
1555                 close $fd;
1556         }
1557
1558         print "</body>\n" .
1559               "</html>";
1560 }
1561
1562 sub die_error {
1563         my $status = shift || "403 Forbidden";
1564         my $error = shift || "Malformed query, file missing or permission denied";
1565
1566         git_header_html($status);
1567         print <<EOF;
1568 <div class="page_body">
1569 <br /><br />
1570 $status - $error
1571 <br />
1572 </div>
1573 EOF
1574         git_footer_html();
1575         exit;
1576 }
1577
1578 ## ----------------------------------------------------------------------
1579 ## functions printing or outputting HTML: navigation
1580
1581 sub git_print_page_nav {
1582         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1583         $extra = '' if !defined $extra; # pager or formats
1584
1585         my @navs = qw(summary shortlog log commit commitdiff tree);
1586         if ($suppress) {
1587                 @navs = grep { $_ ne $suppress } @navs;
1588         }
1589
1590         my %arg = map { $_ => {action=>$_} } @navs;
1591         if (defined $head) {
1592                 for (qw(commit commitdiff)) {
1593                         $arg{$_}{hash} = $head;
1594                 }
1595                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1596                         for (qw(shortlog log)) {
1597                                 $arg{$_}{hash} = $head;
1598                         }
1599                 }
1600         }
1601         $arg{tree}{hash} = $treehead if defined $treehead;
1602         $arg{tree}{hash_base} = $treebase if defined $treebase;
1603
1604         print "<div class=\"page_nav\">\n" .
1605                 (join " | ",
1606                  map { $_ eq $current ?
1607                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1608                  } @navs);
1609         print "<br/>\n$extra<br/>\n" .
1610               "</div>\n";
1611 }
1612
1613 sub format_paging_nav {
1614         my ($action, $hash, $head, $page, $nrevs) = @_;
1615         my $paging_nav;
1616
1617
1618         if ($hash ne $head || $page) {
1619                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1620         } else {
1621                 $paging_nav .= "HEAD";
1622         }
1623
1624         if ($page > 0) {
1625                 $paging_nav .= " &sdot; " .
1626                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1627                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1628         } else {
1629                 $paging_nav .= " &sdot; prev";
1630         }
1631
1632         if ($nrevs >= (100 * ($page+1)-1)) {
1633                 $paging_nav .= " &sdot; " .
1634                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1635                                  -accesskey => "n", -title => "Alt-n"}, "next");
1636         } else {
1637                 $paging_nav .= " &sdot; next";
1638         }
1639
1640         return $paging_nav;
1641 }
1642
1643 ## ......................................................................
1644 ## functions printing or outputting HTML: div
1645
1646 sub git_print_header_div {
1647         my ($action, $title, $hash, $hash_base) = @_;
1648         my %args = ();
1649
1650         $args{action} = $action;
1651         $args{hash} = $hash if $hash;
1652         $args{hash_base} = $hash_base if $hash_base;
1653
1654         print "<div class=\"header\">\n" .
1655               $cgi->a({-href => href(%args), -class => "title"},
1656               $title ? $title : $action) .
1657               "\n</div>\n";
1658 }
1659
1660 #sub git_print_authorship (\%) {
1661 sub git_print_authorship {
1662         my $co = shift;
1663
1664         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1665         print "<div class=\"author_date\">" .
1666               esc_html($co->{'author_name'}) .
1667               " [$ad{'rfc2822'}";
1668         if ($ad{'hour_local'} < 6) {
1669                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1670                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1671         } else {
1672                 printf(" (%02d:%02d %s)",
1673                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1674         }
1675         print "]</div>\n";
1676 }
1677
1678 sub git_print_page_path {
1679         my $name = shift;
1680         my $type = shift;
1681         my $hb = shift;
1682
1683
1684         print "<div class=\"page_path\">";
1685         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1686                       -title => 'tree root'}, "[$project]");
1687         print " / ";
1688         if (defined $name) {
1689                 my @dirname = split '/', $name;
1690                 my $basename = pop @dirname;
1691                 my $fullname = '';
1692
1693                 foreach my $dir (@dirname) {
1694                         $fullname .= ($fullname ? '/' : '') . $dir;
1695                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1696                                                      hash_base=>$hb),
1697                                       -title => $fullname}, esc_html($dir));
1698                         print " / ";
1699                 }
1700                 if (defined $type && $type eq 'blob') {
1701                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1702                                                      hash_base=>$hb),
1703                                       -title => $name}, esc_html($basename));
1704                 } elsif (defined $type && $type eq 'tree') {
1705                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1706                                                      hash_base=>$hb),
1707                                       -title => $name}, esc_html($basename));
1708                         print " / ";
1709                 } else {
1710                         print esc_html($basename);
1711                 }
1712         }
1713         print "<br/></div>\n";
1714 }
1715
1716 # sub git_print_log (\@;%) {
1717 sub git_print_log ($;%) {
1718         my $log = shift;
1719         my %opts = @_;
1720
1721         if ($opts{'-remove_title'}) {
1722                 # remove title, i.e. first line of log
1723                 shift @$log;
1724         }
1725         # remove leading empty lines
1726         while (defined $log->[0] && $log->[0] eq "") {
1727                 shift @$log;
1728         }
1729
1730         # print log
1731         my $signoff = 0;
1732         my $empty = 0;
1733         foreach my $line (@$log) {
1734                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1735                         $signoff = 1;
1736                         $empty = 0;
1737                         if (! $opts{'-remove_signoff'}) {
1738                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1739                                 next;
1740                         } else {
1741                                 # remove signoff lines
1742                                 next;
1743                         }
1744                 } else {
1745                         $signoff = 0;
1746                 }
1747
1748                 # print only one empty line
1749                 # do not print empty line after signoff
1750                 if ($line eq "") {
1751                         next if ($empty || $signoff);
1752                         $empty = 1;
1753                 } else {
1754                         $empty = 0;
1755                 }
1756
1757                 print format_log_line_html($line) . "<br/>\n";
1758         }
1759
1760         if ($opts{'-final_empty_line'}) {
1761                 # end with single empty line
1762                 print "<br/>\n" unless $empty;
1763         }
1764 }
1765
1766 sub git_print_simplified_log {
1767         my $log = shift;
1768         my $remove_title = shift;
1769
1770         git_print_log($log,
1771                 -final_empty_line=> 1,
1772                 -remove_title => $remove_title);
1773 }
1774
1775 # print tree entry (row of git_tree), but without encompassing <tr> element
1776 sub git_print_tree_entry {
1777         my ($t, $basedir, $hash_base, $have_blame) = @_;
1778
1779         my %base_key = ();
1780         $base_key{hash_base} = $hash_base if defined $hash_base;
1781
1782         # The format of a table row is: mode list link.  Where mode is
1783         # the mode of the entry, list is the name of the entry, an href,
1784         # and link is the action links of the entry.
1785
1786         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1787         if ($t->{'type'} eq "blob") {
1788                 print "<td class=\"list\">" .
1789                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1790                                                file_name=>"$basedir$t->{'name'}", %base_key),
1791                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1792                 print "<td class=\"link\">";
1793                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1794                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1795                               "blob");
1796                 if ($have_blame) {
1797                         print " | " .
1798                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1799                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1800                                             "blame");
1801                 }
1802                 if (defined $hash_base) {
1803                         print " | " .
1804                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1805                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1806                                       "history");
1807                 }
1808                 print " | " .
1809                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1810                                                file_name=>"$basedir$t->{'name'}")},
1811                                 "raw");
1812                 print "</td>\n";
1813
1814         } elsif ($t->{'type'} eq "tree") {
1815                 print "<td class=\"list\">";
1816                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1817                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1818                               esc_html($t->{'name'}));
1819                 print "</td>\n";
1820                 print "<td class=\"link\">";
1821                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1822                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1823                               "tree");
1824                 if (defined $hash_base) {
1825                         print " | " .
1826                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1827                                                      file_name=>"$basedir$t->{'name'}")},
1828                                       "history");
1829                 }
1830                 print "</td>\n";
1831         }
1832 }
1833
1834 ## ......................................................................
1835 ## functions printing large fragments of HTML
1836
1837 sub git_difftree_body {
1838         my ($difftree, $hash, $parent) = @_;
1839
1840         print "<div class=\"list_head\">\n";
1841         if ($#{$difftree} > 10) {
1842                 print(($#{$difftree} + 1) . " files changed:\n");
1843         }
1844         print "</div>\n";
1845
1846         print "<table class=\"diff_tree\">\n";
1847         my $alternate = 1;
1848         my $patchno = 0;
1849         foreach my $line (@{$difftree}) {
1850                 my %diff = parse_difftree_raw_line($line);
1851
1852                 if ($alternate) {
1853                         print "<tr class=\"dark\">\n";
1854                 } else {
1855                         print "<tr class=\"light\">\n";
1856                 }
1857                 $alternate ^= 1;
1858
1859                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1860                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1861                 if ($diff{'to_mode'} ne ('0' x 6)) {
1862                         $to_mode_oct = oct $diff{'to_mode'};
1863                         if (S_ISREG($to_mode_oct)) { # only for regular file
1864                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1865                         }
1866                         $to_file_type = file_type($diff{'to_mode'});
1867                 }
1868                 if ($diff{'from_mode'} ne ('0' x 6)) {
1869                         $from_mode_oct = oct $diff{'from_mode'};
1870                         if (S_ISREG($to_mode_oct)) { # only for regular file
1871                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1872                         }
1873                         $from_file_type = file_type($diff{'from_mode'});
1874                 }
1875
1876                 if ($diff{'status'} eq "A") { # created
1877                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1878                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1879                         $mode_chng   .= "]</span>";
1880                         print "<td>";
1881                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1882                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1883                                       -class => "list"}, esc_html($diff{'file'}));
1884                         print "</td>\n";
1885                         print "<td>$mode_chng</td>\n";
1886                         print "<td class=\"link\">";
1887                         if ($action eq 'commitdiff') {
1888                                 # link to patch
1889                                 $patchno++;
1890                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1891                         }
1892                         print "</td>\n";
1893
1894                 } elsif ($diff{'status'} eq "D") { # deleted
1895                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1896                         print "<td>";
1897                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1898                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1899                                        -class => "list"}, esc_html($diff{'file'}));
1900                         print "</td>\n";
1901                         print "<td>$mode_chng</td>\n";
1902                         print "<td class=\"link\">";
1903                         if ($action eq 'commitdiff') {
1904                                 # link to patch
1905                                 $patchno++;
1906                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1907                                 print " | ";
1908                         }
1909                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1910                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1911                                       "blob") . " | ";
1912                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1913                                                      file_name=>$diff{'file'})},
1914                                       "blame") . " | ";
1915                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1916                                                      file_name=>$diff{'file'})},
1917                                       "history");
1918                         print "</td>\n";
1919
1920                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1921                         my $mode_chnge = "";
1922                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1923                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1924                                 if ($from_file_type != $to_file_type) {
1925                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1926                                 }
1927                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1928                                         if ($from_mode_str && $to_mode_str) {
1929                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1930                                         } elsif ($to_mode_str) {
1931                                                 $mode_chnge .= " mode: $to_mode_str";
1932                                         }
1933                                 }
1934                                 $mode_chnge .= "]</span>\n";
1935                         }
1936                         print "<td>";
1937                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1938                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1939                                       -class => "list"}, esc_html($diff{'file'}));
1940                         print "</td>\n";
1941                         print "<td>$mode_chnge</td>\n";
1942                         print "<td class=\"link\">";
1943                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1944                                 if ($action eq 'commitdiff') {
1945                                         # link to patch
1946                                         $patchno++;
1947                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1948                                 } else {
1949                                         print $cgi->a({-href => href(action=>"blobdiff",
1950                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1951                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1952                                                                      file_name=>$diff{'file'})},
1953                                                       "diff");
1954                                 }
1955                                 print " | ";
1956                         }
1957                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1958                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1959                                       "blob") . " | ";
1960                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1961                                                      file_name=>$diff{'file'})},
1962                                       "blame") . " | ";
1963                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1964                                                      file_name=>$diff{'file'})},
1965                                       "history");
1966                         print "</td>\n";
1967
1968                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1969                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1970                         my $nstatus = $status_name{$diff{'status'}};
1971                         my $mode_chng = "";
1972                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1973                                 # mode also for directories, so we cannot use $to_mode_str
1974                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1975                         }
1976                         print "<td>" .
1977                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1978                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1979                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1980                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1981                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1982                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1983                                       -class => "list"}, esc_html($diff{'from_file'})) .
1984                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1985                               "<td class=\"link\">";
1986                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1987                                 if ($action eq 'commitdiff') {
1988                                         # link to patch
1989                                         $patchno++;
1990                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1991                                 } else {
1992                                         print $cgi->a({-href => href(action=>"blobdiff",
1993                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1994                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1995                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1996                                                       "diff");
1997                                 }
1998                                 print " | ";
1999                         }
2000                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2001                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2002                                       "blob") . " | ";
2003                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2004                                                      file_name=>$diff{'from_file'})},
2005                                       "blame") . " | ";
2006                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2007                                                     file_name=>$diff{'from_file'})},
2008                                       "history");
2009                         print "</td>\n";
2010
2011                 } # we should not encounter Unmerged (U) or Unknown (X) status
2012                 print "</tr>\n";
2013         }
2014         print "</table>\n";
2015 }
2016
2017 sub git_patchset_body {
2018         my ($fd, $difftree, $hash, $hash_parent) = @_;
2019
2020         my $patch_idx = 0;
2021         my $in_header = 0;
2022         my $patch_found = 0;
2023         my $diffinfo;
2024
2025         print "<div class=\"patchset\">\n";
2026
2027         LINE:
2028         while (my $patch_line = <$fd>) {
2029                 chomp $patch_line;
2030
2031                 if ($patch_line =~ m/^diff /) { # "git diff" header
2032                         # beginning of patch (in patchset)
2033                         if ($patch_found) {
2034                                 # close previous patch
2035                                 print "</div>\n"; # class="patch"
2036                         } else {
2037                                 # first patch in patchset
2038                                 $patch_found = 1;
2039                         }
2040                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2041
2042                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2043                                 $diffinfo = $difftree->[$patch_idx];
2044                         } else {
2045                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2046                         }
2047                         $patch_idx++;
2048
2049                         # for now, no extended header, hence we skip empty patches
2050                         # companion to  next LINE if $in_header;
2051                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
2052                                 $in_header = 1;
2053                                 next LINE;
2054                         }
2055
2056                         if ($diffinfo->{'status'} eq "A") { # added
2057                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2058                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2059                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2060                                               $diffinfo->{'to_id'}) . " (new)" .
2061                                       "</div>\n"; # class="diff_info"
2062
2063                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2064                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2065                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2066                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2067                                               $diffinfo->{'from_id'}) . " (deleted)" .
2068                                       "</div>\n"; # class="diff_info"
2069
2070                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2071                                  $diffinfo->{'status'} eq "C" || # copied
2072                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2073                                 print "<div class=\"diff_info\">" .
2074                                       file_type($diffinfo->{'from_mode'}) . ":" .
2075                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2076                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2077                                               $diffinfo->{'from_id'}) .
2078                                       " -> " .
2079                                       file_type($diffinfo->{'to_mode'}) . ":" .
2080                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2081                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2082                                               $diffinfo->{'to_id'});
2083                                 print "</div>\n"; # class="diff_info"
2084
2085                         } else { # modified, mode changed, ...
2086                                 print "<div class=\"diff_info\">" .
2087                                       file_type($diffinfo->{'from_mode'}) . ":" .
2088                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2089                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2090                                               $diffinfo->{'from_id'}) .
2091                                       " -> " .
2092                                       file_type($diffinfo->{'to_mode'}) . ":" .
2093                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2094                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2095                                               $diffinfo->{'to_id'});
2096                                 print "</div>\n"; # class="diff_info"
2097                         }
2098
2099                         #print "<div class=\"diff extended_header\">\n";
2100                         $in_header = 1;
2101                         next LINE;
2102                 } # start of patch in patchset
2103
2104
2105                 if ($in_header && $patch_line =~ m/^---/) {
2106                         #print "</div>\n"; # class="diff extended_header"
2107                         $in_header = 0;
2108
2109                         my $file = $diffinfo->{'from_file'};
2110                         $file  ||= $diffinfo->{'file'};
2111                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2112                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2113                                         -class => "list"}, esc_html($file));
2114                         $patch_line =~ s|a/.*$|a/$file|g;
2115                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2116
2117                         $patch_line = <$fd>;
2118                         chomp $patch_line;
2119
2120                         #$patch_line =~ m/^+++/;
2121                         $file    = $diffinfo->{'to_file'};
2122                         $file  ||= $diffinfo->{'file'};
2123                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2124                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2125                                         -class => "list"}, esc_html($file));
2126                         $patch_line =~ s|b/.*|b/$file|g;
2127                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2128
2129                         next LINE;
2130                 }
2131                 next LINE if $in_header;
2132
2133                 print format_diff_line($patch_line);
2134         }
2135         print "</div>\n" if $patch_found; # class="patch"
2136
2137         print "</div>\n"; # class="patchset"
2138 }
2139
2140 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2141
2142 sub git_shortlog_body {
2143         # uses global variable $project
2144         my ($revlist, $from, $to, $refs, $extra) = @_;
2145
2146         $from = 0 unless defined $from;
2147         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2148
2149         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2150         my $alternate = 1;
2151         for (my $i = $from; $i <= $to; $i++) {
2152                 my $commit = $revlist->[$i];
2153                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2154                 my $ref = format_ref_marker($refs, $commit);
2155                 my %co = parse_commit($commit);
2156                 if ($alternate) {
2157                         print "<tr class=\"dark\">\n";
2158                 } else {
2159                         print "<tr class=\"light\">\n";
2160                 }
2161                 $alternate ^= 1;
2162                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2163                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2164                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2165                       "<td>";
2166                 print format_subject_html($co{'title'}, $co{'title_short'},
2167                                           href(action=>"commit", hash=>$commit), $ref);
2168                 print "</td>\n" .
2169                       "<td class=\"link\">" .
2170                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2171                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2172                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2173                 if (gitweb_have_snapshot()) {
2174                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2175                 }
2176                 print "</td>\n" .
2177                       "</tr>\n";
2178         }
2179         if (defined $extra) {
2180                 print "<tr>\n" .
2181                       "<td colspan=\"4\">$extra</td>\n" .
2182                       "</tr>\n";
2183         }
2184         print "</table>\n";
2185 }
2186
2187 sub git_history_body {
2188         # Warning: assumes constant type (blob or tree) during history
2189         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2190
2191         $from = 0 unless defined $from;
2192         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2193
2194         print "<table class=\"history\" cellspacing=\"0\">\n";
2195         my $alternate = 1;
2196         for (my $i = $from; $i <= $to; $i++) {
2197                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2198                         next;
2199                 }
2200
2201                 my $commit = $1;
2202                 my %co = parse_commit($commit);
2203                 if (!%co) {
2204                         next;
2205                 }
2206
2207                 my $ref = format_ref_marker($refs, $commit);
2208
2209                 if ($alternate) {
2210                         print "<tr class=\"dark\">\n";
2211                 } else {
2212                         print "<tr class=\"light\">\n";
2213                 }
2214                 $alternate ^= 1;
2215                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2216                       # shortlog uses      chop_str($co{'author_name'}, 10)
2217                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2218                       "<td>";
2219                 # originally git_history used chop_str($co{'title'}, 50)
2220                 print format_subject_html($co{'title'}, $co{'title_short'},
2221                                           href(action=>"commit", hash=>$commit), $ref);
2222                 print "</td>\n" .
2223                       "<td class=\"link\">" .
2224                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2225                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2226
2227                 if ($ftype eq 'blob') {
2228                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2229                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2230                         if (defined $blob_current && defined $blob_parent &&
2231                                         $blob_current ne $blob_parent) {
2232                                 print " | " .
2233                                         $cgi->a({-href => href(action=>"blobdiff",
2234                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2235                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2236                                                                file_name=>$file_name)},
2237                                                 "diff to current");
2238                         }
2239                 }
2240                 print "</td>\n" .
2241                       "</tr>\n";
2242         }
2243         if (defined $extra) {
2244                 print "<tr>\n" .
2245                       "<td colspan=\"4\">$extra</td>\n" .
2246                       "</tr>\n";
2247         }
2248         print "</table>\n";
2249 }
2250
2251 sub git_tags_body {
2252         # uses global variable $project
2253         my ($taglist, $from, $to, $extra) = @_;
2254         $from = 0 unless defined $from;
2255         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2256
2257         print "<table class=\"tags\" cellspacing=\"0\">\n";
2258         my $alternate = 1;
2259         for (my $i = $from; $i <= $to; $i++) {
2260                 my $entry = $taglist->[$i];
2261                 my %tag = %$entry;
2262                 my $comment_lines = $tag{'comment'};
2263                 my $comment = shift @$comment_lines;
2264                 my $comment_short;
2265                 if (defined $comment) {
2266                         $comment_short = chop_str($comment, 30, 5);
2267                 }
2268                 if ($alternate) {
2269                         print "<tr class=\"dark\">\n";
2270                 } else {
2271                         print "<tr class=\"light\">\n";
2272                 }
2273                 $alternate ^= 1;
2274                 print "<td><i>$tag{'age'}</i></td>\n" .
2275                       "<td>" .
2276                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2277                                -class => "list name"}, esc_html($tag{'name'})) .
2278                       "</td>\n" .
2279                       "<td>";
2280                 if (defined $comment) {
2281                         print format_subject_html($comment, $comment_short,
2282                                                   href(action=>"tag", hash=>$tag{'id'}));
2283                 }
2284                 print "</td>\n" .
2285                       "<td class=\"selflink\">";
2286                 if ($tag{'type'} eq "tag") {
2287                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2288                 } else {
2289                         print "&nbsp;";
2290                 }
2291                 print "</td>\n" .
2292                       "<td class=\"link\">" . " | " .
2293                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2294                 if ($tag{'reftype'} eq "commit") {
2295                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2296                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2297                 } elsif ($tag{'reftype'} eq "blob") {
2298                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2299                 }
2300                 print "</td>\n" .
2301                       "</tr>";
2302         }
2303         if (defined $extra) {
2304                 print "<tr>\n" .
2305                       "<td colspan=\"5\">$extra</td>\n" .
2306                       "</tr>\n";
2307         }
2308         print "</table>\n";
2309 }
2310
2311 sub git_heads_body {
2312         # uses global variable $project
2313         my ($headlist, $head, $from, $to, $extra) = @_;
2314         $from = 0 unless defined $from;
2315         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2316
2317         print "<table class=\"heads\" cellspacing=\"0\">\n";
2318         my $alternate = 1;
2319         for (my $i = $from; $i <= $to; $i++) {
2320                 my $entry = $headlist->[$i];
2321                 my %tag = %$entry;
2322                 my $curr = $tag{'id'} eq $head;
2323                 if ($alternate) {
2324                         print "<tr class=\"dark\">\n";
2325                 } else {
2326                         print "<tr class=\"light\">\n";
2327                 }
2328                 $alternate ^= 1;
2329                 print "<td><i>$tag{'age'}</i></td>\n" .
2330                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2331                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2332                                -class => "list name"},esc_html($tag{'name'})) .
2333                       "</td>\n" .
2334                       "<td class=\"link\">" .
2335                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2336                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2337                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2338                       "</td>\n" .
2339                       "</tr>";
2340         }
2341         if (defined $extra) {
2342                 print "<tr>\n" .
2343                       "<td colspan=\"3\">$extra</td>\n" .
2344                       "</tr>\n";
2345         }
2346         print "</table>\n";
2347 }
2348
2349 ## ======================================================================
2350 ## ======================================================================
2351 ## actions
2352
2353 sub git_project_list {
2354         my $order = $cgi->param('o');
2355         if (defined $order && $order !~ m/project|descr|owner|age/) {
2356                 die_error(undef, "Unknown order parameter");
2357         }
2358
2359         my @list = git_get_projects_list();
2360         my @projects;
2361         if (!@list) {
2362                 die_error(undef, "No projects found");
2363         }
2364         foreach my $pr (@list) {
2365                 my (@aa) = git_get_last_activity($pr->{'path'});
2366                 unless (@aa) {
2367                         next;
2368                 }
2369                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2370                 if (!defined $pr->{'descr'}) {
2371                         my $descr = git_get_project_description($pr->{'path'}) || "";
2372                         $pr->{'descr'} = chop_str($descr, 25, 5);
2373                 }
2374                 if (!defined $pr->{'owner'}) {
2375                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2376                 }
2377                 push @projects, $pr;
2378         }
2379
2380         git_header_html();
2381         if (-f $home_text) {
2382                 print "<div class=\"index_include\">\n";
2383                 open (my $fd, $home_text);
2384                 print <$fd>;
2385                 close $fd;
2386                 print "</div>\n";
2387         }
2388         print "<table class=\"project_list\">\n" .
2389               "<tr>\n";
2390         $order ||= "project";
2391         if ($order eq "project") {
2392                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2393                 print "<th>Project</th>\n";
2394         } else {
2395                 print "<th>" .
2396                       $cgi->a({-href => href(project=>undef, order=>'project'),
2397                                -class => "header"}, "Project") .
2398                       "</th>\n";
2399         }
2400         if ($order eq "descr") {
2401                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2402                 print "<th>Description</th>\n";
2403         } else {
2404                 print "<th>" .
2405                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2406                                -class => "header"}, "Description") .
2407                       "</th>\n";
2408         }
2409         if ($order eq "owner") {
2410                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2411                 print "<th>Owner</th>\n";
2412         } else {
2413                 print "<th>" .
2414                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2415                                -class => "header"}, "Owner") .
2416                       "</th>\n";
2417         }
2418         if ($order eq "age") {
2419                 @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2420                 print "<th>Last Change</th>\n";
2421         } else {
2422                 print "<th>" .
2423                       $cgi->a({-href => href(project=>undef, order=>'age'),
2424                                -class => "header"}, "Last Change") .
2425                       "</th>\n";
2426         }
2427         print "<th></th>\n" .
2428               "</tr>\n";
2429         my $alternate = 1;
2430         foreach my $pr (@projects) {
2431                 if ($alternate) {
2432                         print "<tr class=\"dark\">\n";
2433                 } else {
2434                         print "<tr class=\"light\">\n";
2435                 }
2436                 $alternate ^= 1;
2437                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2438                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2439                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2440                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2441                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2442                       $pr->{'age_string'} . "</td>\n" .
2443                       "<td class=\"link\">" .
2444                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2445                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2446                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2447                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2448                       "</td>\n" .
2449                       "</tr>\n";
2450         }
2451         print "</table>\n";
2452         git_footer_html();
2453 }
2454
2455 sub git_project_index {
2456         my @projects = git_get_projects_list();
2457
2458         print $cgi->header(
2459                 -type => 'text/plain',
2460                 -charset => 'utf-8',
2461                 -content_disposition => 'inline; filename="index.aux"');
2462
2463         foreach my $pr (@projects) {
2464                 if (!exists $pr->{'owner'}) {
2465                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2466                 }
2467
2468                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2469                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2470                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2471                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2472                 $path  =~ s/ /\+/g;
2473                 $owner =~ s/ /\+/g;
2474
2475                 print "$path $owner\n";
2476         }
2477 }
2478
2479 sub git_summary {
2480         my $descr = git_get_project_description($project) || "none";
2481         my $head = git_get_head_hash($project);
2482         my %co = parse_commit($head);
2483         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2484
2485         my $owner = git_get_project_owner($project);
2486
2487         my ($reflist, $refs) = git_get_refs_list();
2488
2489         my @taglist;
2490         my @headlist;
2491         foreach my $ref (@$reflist) {
2492                 if ($ref->{'name'} =~ s!^heads/!!) {
2493                         push @headlist, $ref;
2494                 } else {
2495                         $ref->{'name'} =~ s!^tags/!!;
2496                         push @taglist, $ref;
2497                 }
2498         }
2499
2500         git_header_html();
2501         git_print_page_nav('summary','', $head);
2502
2503         print "<div class=\"title\">&nbsp;</div>\n";
2504         print "<table cellspacing=\"0\">\n" .
2505               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2506               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2507               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2508         # use per project git URL list in $projectroot/$project/cloneurl
2509         # or make project git URL from git base URL and project name
2510         my $url_tag = "URL";
2511         my @url_list = git_get_project_url_list($project);
2512         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2513         foreach my $git_url (@url_list) {
2514                 next unless $git_url;
2515                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2516                 $url_tag = "";
2517         }
2518         print "</table>\n";
2519
2520         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2521                 git_get_head_hash($project)
2522                 or die_error(undef, "Open git-rev-list failed");
2523         my @revlist = map { chomp; $_ } <$fd>;
2524         close $fd;
2525         git_print_header_div('shortlog');
2526         git_shortlog_body(\@revlist, 0, 15, $refs,
2527                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2528
2529         if (@taglist) {
2530                 git_print_header_div('tags');
2531                 git_tags_body(\@taglist, 0, 15,
2532                               $cgi->a({-href => href(action=>"tags")}, "..."));
2533         }
2534
2535         if (@headlist) {
2536                 git_print_header_div('heads');
2537                 git_heads_body(\@headlist, $head, 0, 15,
2538                                $cgi->a({-href => href(action=>"heads")}, "..."));
2539         }
2540
2541         git_footer_html();
2542 }
2543
2544 sub git_tag {
2545         my $head = git_get_head_hash($project);
2546         git_header_html();
2547         git_print_page_nav('','', $head,undef,$head);
2548         my %tag = parse_tag($hash);
2549         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2550         print "<div class=\"title_text\">\n" .
2551               "<table cellspacing=\"0\">\n" .
2552               "<tr>\n" .
2553               "<td>object</td>\n" .
2554               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2555                                $tag{'object'}) . "</td>\n" .
2556               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2557                                               $tag{'type'}) . "</td>\n" .
2558               "</tr>\n";
2559         if (defined($tag{'author'})) {
2560                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2561                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2562                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2563                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2564                         "</td></tr>\n";
2565         }
2566         print "</table>\n\n" .
2567               "</div>\n";
2568         print "<div class=\"page_body\">";
2569         my $comment = $tag{'comment'};
2570         foreach my $line (@$comment) {
2571                 print esc_html($line) . "<br/>\n";
2572         }
2573         print "</div>\n";
2574         git_footer_html();
2575 }
2576
2577 sub git_blame2 {
2578         my $fd;
2579         my $ftype;
2580
2581         my ($have_blame) = gitweb_check_feature('blame');
2582         if (!$have_blame) {
2583                 die_error('403 Permission denied', "Permission denied");
2584         }
2585         die_error('404 Not Found', "File name not defined") if (!$file_name);
2586         $hash_base ||= git_get_head_hash($project);
2587         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2588         my %co = parse_commit($hash_base)
2589                 or die_error(undef, "Reading commit failed");
2590         if (!defined $hash) {
2591                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2592                         or die_error(undef, "Error looking up file");
2593         }
2594         $ftype = git_get_type($hash);
2595         if ($ftype !~ "blob") {
2596                 die_error("400 Bad Request", "Object is not a blob");
2597         }
2598         open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2599               $file_name, $hash_base)
2600                 or die_error(undef, "Open git-blame failed");
2601         git_header_html();
2602         my $formats_nav =
2603                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2604                         "blob") .
2605                 " | " .
2606                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2607                         "history") .
2608                 " | " .
2609                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2610                         "HEAD");
2611         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2612         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2613         git_print_page_path($file_name, $ftype, $hash_base);
2614         my @rev_color = (qw(light2 dark2));
2615         my $num_colors = scalar(@rev_color);
2616         my $current_color = 0;
2617         my $last_rev;
2618         print <<HTML;
2619 <div class="page_body">
2620 <table class="blame">
2621 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2622 HTML
2623         my %metainfo = ();
2624         while (1) {
2625                 $_ = <$fd>;
2626                 last unless defined $_;
2627                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
2628                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2629                 if (!exists $metainfo{$full_rev}) {
2630                         $metainfo{$full_rev} = {};
2631                 }
2632                 my $meta = $metainfo{$full_rev};
2633                 while (<$fd>) {
2634                         last if (s/^\t//);
2635                         if (/^(\S+) (.*)$/) {
2636                                 $meta->{$1} = $2;
2637                         }
2638                 }
2639                 my $data = $_;
2640                 my $rev = substr($full_rev, 0, 8);
2641                 my $author = $meta->{'author'};
2642                 my %date = parse_date($meta->{'author-time'},
2643                                       $meta->{'author-tz'});
2644                 my $date = $date{'iso-tz'};
2645                 if ($group_size) {
2646                         $current_color = ++$current_color % $num_colors;
2647                 }
2648                 print "<tr class=\"$rev_color[$current_color]\">\n";
2649                 if ($group_size) {
2650                         print "<td class=\"sha1\"";
2651                         print " title=\"$author, $date\"";
2652                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2653                         print ">";
2654                         print $cgi->a({-href => href(action=>"commit",
2655                                                      hash=>$full_rev,
2656                                                      file_name=>$file_name)},
2657                                       esc_html($rev));
2658                         print "</td>\n";
2659                 }
2660                 my $blamed = href(action => 'blame',
2661                                   file_name => $meta->{'filename'},
2662                                   hash_base => $full_rev);
2663                 print "<td class=\"linenr\">";
2664                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
2665                                 -id => "l$lineno",
2666                                 -class => "linenr" },
2667                               esc_html($lineno));
2668                 print "</td>";
2669                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2670                 print "</tr>\n";
2671         }
2672         print "</table>\n";
2673         print "</div>";
2674         close $fd
2675                 or print "Reading blob failed\n";
2676         git_footer_html();
2677 }
2678
2679 sub git_blame {
2680         my $fd;
2681
2682         my ($have_blame) = gitweb_check_feature('blame');
2683         if (!$have_blame) {
2684                 die_error('403 Permission denied', "Permission denied");
2685         }
2686         die_error('404 Not Found', "File name not defined") if (!$file_name);
2687         $hash_base ||= git_get_head_hash($project);
2688         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2689         my %co = parse_commit($hash_base)
2690                 or die_error(undef, "Reading commit failed");
2691         if (!defined $hash) {
2692                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2693                         or die_error(undef, "Error lookup file");
2694         }
2695         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2696                 or die_error(undef, "Open git-annotate failed");
2697         git_header_html();
2698         my $formats_nav =
2699                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2700                         "blob") .
2701                 " | " .
2702                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2703                         "history") .
2704                 " | " .
2705                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2706                         "HEAD");
2707         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2708         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2709         git_print_page_path($file_name, 'blob', $hash_base);
2710         print "<div class=\"page_body\">\n";
2711         print <<HTML;
2712 <table class="blame">
2713   <tr>
2714     <th>Commit</th>
2715     <th>Age</th>
2716     <th>Author</th>
2717     <th>Line</th>
2718     <th>Data</th>
2719   </tr>
2720 HTML
2721         my @line_class = (qw(light dark));
2722         my $line_class_len = scalar (@line_class);
2723         my $line_class_num = $#line_class;
2724         while (my $line = <$fd>) {
2725                 my $long_rev;
2726                 my $short_rev;
2727                 my $author;
2728                 my $time;
2729                 my $lineno;
2730                 my $data;
2731                 my $age;
2732                 my $age_str;
2733                 my $age_class;
2734
2735                 chomp $line;
2736                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2737
2738                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2739                         $long_rev = $1;
2740                         $author   = $2;
2741                         $time     = $3;
2742                         $lineno   = $4;
2743                         $data     = $5;
2744                 } else {
2745                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2746                         next;
2747                 }
2748                 $short_rev  = substr ($long_rev, 0, 8);
2749                 $age        = time () - $time;
2750                 $age_str    = age_string ($age);
2751                 $age_str    =~ s/ /&nbsp;/g;
2752                 $age_class  = age_class($age);
2753                 $author     = esc_html ($author);
2754                 $author     =~ s/ /&nbsp;/g;
2755
2756                 $data = untabify($data);
2757                 $data = esc_html ($data);
2758
2759                 print <<HTML;
2760   <tr class="$line_class[$line_class_num]">
2761     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2762     <td class="$age_class">$age_str</td>
2763     <td>$author</td>
2764     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2765     <td class="pre">$data</td>
2766   </tr>
2767 HTML
2768         } # while (my $line = <$fd>)
2769         print "</table>\n\n";
2770         close $fd
2771                 or print "Reading blob failed.\n";
2772         print "</div>";
2773         git_footer_html();
2774 }
2775
2776 sub git_tags {
2777         my $head = git_get_head_hash($project);
2778         git_header_html();
2779         git_print_page_nav('','', $head,undef,$head);
2780         git_print_header_div('summary', $project);
2781
2782         my ($taglist) = git_get_refs_list("tags");
2783         if (@$taglist) {
2784                 git_tags_body($taglist);
2785         }
2786         git_footer_html();
2787 }
2788
2789 sub git_heads {
2790         my $head = git_get_head_hash($project);
2791         git_header_html();
2792         git_print_page_nav('','', $head,undef,$head);
2793         git_print_header_div('summary', $project);
2794
2795         my ($headlist) = git_get_refs_list("heads");
2796         if (@$headlist) {
2797                 git_heads_body($headlist, $head);
2798         }
2799         git_footer_html();
2800 }
2801
2802 sub git_blob_plain {
2803         my $expires;
2804
2805         if (!defined $hash) {
2806                 if (defined $file_name) {
2807                         my $base = $hash_base || git_get_head_hash($project);
2808                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2809                                 or die_error(undef, "Error lookup file");
2810                 } else {
2811                         die_error(undef, "No file name defined");
2812                 }
2813         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2814                 # blobs defined by non-textual hash id's can be cached
2815                 $expires = "+1d";
2816         }
2817
2818         my $type = shift;
2819         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2820                 or die_error(undef, "Couldn't cat $file_name, $hash");
2821
2822         $type ||= blob_mimetype($fd, $file_name);
2823
2824         # save as filename, even when no $file_name is given
2825         my $save_as = "$hash";
2826         if (defined $file_name) {
2827                 $save_as = $file_name;
2828         } elsif ($type =~ m/^text\//) {
2829                 $save_as .= '.txt';
2830         }
2831
2832         print $cgi->header(
2833                 -type => "$type",
2834                 -expires=>$expires,
2835                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2836         undef $/;
2837         binmode STDOUT, ':raw';
2838         print <$fd>;
2839         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2840         $/ = "\n";
2841         close $fd;
2842 }
2843
2844 sub git_blob {
2845         my $expires;
2846
2847         if (!defined $hash) {
2848                 if (defined $file_name) {
2849                         my $base = $hash_base || git_get_head_hash($project);
2850                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2851                                 or die_error(undef, "Error lookup file");
2852                 } else {
2853                         die_error(undef, "No file name defined");
2854                 }
2855         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2856                 # blobs defined by non-textual hash id's can be cached
2857                 $expires = "+1d";
2858         }
2859
2860         my ($have_blame) = gitweb_check_feature('blame');
2861         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2862                 or die_error(undef, "Couldn't cat $file_name, $hash");
2863         my $mimetype = blob_mimetype($fd, $file_name);
2864         if ($mimetype !~ m/^text\//) {
2865                 close $fd;
2866                 return git_blob_plain($mimetype);
2867         }
2868         git_header_html(undef, $expires);
2869         my $formats_nav = '';
2870         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2871                 if (defined $file_name) {
2872                         if ($have_blame) {
2873                                 $formats_nav .=
2874                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2875                                                                hash=>$hash, file_name=>$file_name)},
2876                                                 "blame") .
2877                                         " | ";
2878                         }
2879                         $formats_nav .=
2880                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2881                                                        hash=>$hash, file_name=>$file_name)},
2882                                         "history") .
2883                                 " | " .
2884                                 $cgi->a({-href => href(action=>"blob_plain",
2885                                                        hash=>$hash, file_name=>$file_name)},
2886                                         "raw") .
2887                                 " | " .
2888                                 $cgi->a({-href => href(action=>"blob",
2889                                                        hash_base=>"HEAD", file_name=>$file_name)},
2890                                         "HEAD");
2891                 } else {
2892                         $formats_nav .=
2893                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2894                 }
2895                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2896                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2897         } else {
2898                 print "<div class=\"page_nav\">\n" .
2899                       "<br/><br/></div>\n" .
2900                       "<div class=\"title\">$hash</div>\n";
2901         }
2902         git_print_page_path($file_name, "blob", $hash_base);
2903         print "<div class=\"page_body\">\n";
2904         my $nr;
2905         while (my $line = <$fd>) {
2906                 chomp $line;
2907                 $nr++;
2908                 $line = untabify($line);
2909                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2910                        $nr, $nr, $nr, esc_html($line);
2911         }
2912         close $fd
2913                 or print "Reading blob failed.\n";
2914         print "</div>";
2915         git_footer_html();
2916 }
2917
2918 sub git_tree {
2919         my $have_snapshot = gitweb_have_snapshot();
2920
2921         if (!defined $hash_base) {
2922                 $hash_base = "HEAD";
2923         }
2924         if (!defined $hash) {
2925                 if (defined $file_name) {
2926                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2927                 } else {
2928                         $hash = $hash_base;
2929                 }
2930         }
2931         $/ = "\0";
2932         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2933                 or die_error(undef, "Open git-ls-tree failed");
2934         my @entries = map { chomp; $_ } <$fd>;
2935         close $fd or die_error(undef, "Reading tree failed");
2936         $/ = "\n";
2937
2938         my $refs = git_get_references();
2939         my $ref = format_ref_marker($refs, $hash_base);
2940         git_header_html();
2941         my $basedir = '';
2942         my ($have_blame) = gitweb_check_feature('blame');
2943         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2944                 my @views_nav = ();
2945                 if (defined $file_name) {
2946                         push @views_nav,
2947                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2948                                                        hash=>$hash, file_name=>$file_name)},
2949                                         "history"),
2950                                 $cgi->a({-href => href(action=>"tree",
2951                                                        hash_base=>"HEAD", file_name=>$file_name)},
2952                                         "HEAD"),
2953                 }
2954                 if ($have_snapshot) {
2955                         # FIXME: Should be available when we have no hash base as well.
2956                         push @views_nav,
2957                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2958                                         "snapshot");
2959                 }
2960                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2961                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2962         } else {
2963                 undef $hash_base;
2964                 print "<div class=\"page_nav\">\n";
2965                 print "<br/><br/></div>\n";
2966                 print "<div class=\"title\">$hash</div>\n";
2967         }
2968         if (defined $file_name) {
2969                 $basedir = $file_name;
2970                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
2971                         $basedir .= '/';
2972                 }
2973         }
2974         git_print_page_path($file_name, 'tree', $hash_base);
2975         print "<div class=\"page_body\">\n";
2976         print "<table cellspacing=\"0\">\n";
2977         my $alternate = 1;
2978         # '..' (top directory) link if possible
2979         if (defined $hash_base &&
2980             defined $file_name && $file_name =~ m![^/]+$!) {
2981                 if ($alternate) {
2982                         print "<tr class=\"dark\">\n";
2983                 } else {
2984                         print "<tr class=\"light\">\n";
2985                 }
2986                 $alternate ^= 1;
2987
2988                 my $up = $file_name;
2989                 $up =~ s!/?[^/]+$!!;
2990                 undef $up unless $up;
2991                 # based on git_print_tree_entry
2992                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
2993                 print '<td class="list">';
2994                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
2995                                              file_name=>$up)},
2996                               "..");
2997                 print "</td>\n";
2998                 print "<td class=\"link\"></td>\n";
2999
3000                 print "</tr>\n";
3001         }
3002         foreach my $line (@entries) {
3003                 my %t = parse_ls_tree_line($line, -z => 1);
3004
3005                 if ($alternate) {
3006                         print "<tr class=\"dark\">\n";
3007                 } else {
3008                         print "<tr class=\"light\">\n";
3009                 }
3010                 $alternate ^= 1;
3011
3012                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3013
3014                 print "</tr>\n";
3015         }
3016         print "</table>\n" .
3017               "</div>";
3018         git_footer_html();
3019 }
3020
3021 sub git_snapshot {
3022         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3023         my $have_snapshot = (defined $ctype && defined $suffix);
3024         if (!$have_snapshot) {
3025                 die_error('403 Permission denied', "Permission denied");
3026         }
3027
3028         if (!defined $hash) {
3029                 $hash = git_get_head_hash($project);
3030         }
3031
3032         my $filename = basename($project) . "-$hash.tar.$suffix";
3033
3034         print $cgi->header(
3035                 -type => 'application/x-tar',
3036                 -content_encoding => $ctype,
3037                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3038                 -status => '200 OK');
3039
3040         my $git = git_cmd_str();
3041         my $name = $project;
3042         $name =~ s/\047/\047\\\047\047/g;
3043         open my $fd, "-|",
3044         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3045                 or die_error(undef, "Execute git-tar-tree failed.");
3046         binmode STDOUT, ':raw';
3047         print <$fd>;
3048         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3049         close $fd;
3050
3051 }
3052
3053 sub git_log {
3054         my $head = git_get_head_hash($project);
3055         if (!defined $hash) {
3056                 $hash = $head;
3057         }
3058         if (!defined $page) {
3059                 $page = 0;
3060         }
3061         my $refs = git_get_references();
3062
3063         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3064         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3065                 or die_error(undef, "Open git-rev-list failed");
3066         my @revlist = map { chomp; $_ } <$fd>;
3067         close $fd;
3068
3069         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3070
3071         git_header_html();
3072         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3073
3074         if (!@revlist) {
3075                 my %co = parse_commit($hash);
3076
3077                 git_print_header_div('summary', $project);
3078                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3079         }
3080         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3081                 my $commit = $revlist[$i];
3082                 my $ref = format_ref_marker($refs, $commit);
3083                 my %co = parse_commit($commit);
3084                 next if !%co;
3085                 my %ad = parse_date($co{'author_epoch'});
3086                 git_print_header_div('commit',
3087                                "<span class=\"age\">$co{'age_string'}</span>" .
3088                                esc_html($co{'title'}) . $ref,
3089                                $commit);
3090                 print "<div class=\"title_text\">\n" .
3091                       "<div class=\"log_link\">\n" .
3092                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3093                       " | " .
3094                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3095                       " | " .
3096                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3097                       "<br/>\n" .
3098                       "</div>\n" .
3099                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3100                       "</div>\n";
3101
3102                 print "<div class=\"log_body\">\n";
3103                 git_print_simplified_log($co{'comment'});
3104                 print "</div>\n";
3105         }
3106         git_footer_html();
3107 }
3108
3109 sub git_commit {
3110         my %co = parse_commit($hash);
3111         if (!%co) {
3112                 die_error(undef, "Unknown commit object");
3113         }
3114         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3115         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3116
3117         my $parent = $co{'parent'};
3118         if (!defined $parent) {
3119                 $parent = "--root";
3120         }
3121         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3122                 or die_error(undef, "Open git-diff-tree failed");
3123         my @difftree = map { chomp; $_ } <$fd>;
3124         close $fd or die_error(undef, "Reading git-diff-tree failed");
3125
3126         # non-textual hash id's can be cached
3127         my $expires;
3128         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3129                 $expires = "+1d";
3130         }
3131         my $refs = git_get_references();
3132         my $ref = format_ref_marker($refs, $co{'id'});
3133
3134         my $have_snapshot = gitweb_have_snapshot();
3135
3136         my @views_nav = ();
3137         if (defined $file_name && defined $co{'parent'}) {
3138                 push @views_nav,
3139                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3140                                 "blame");
3141         }
3142         git_header_html(undef, $expires);
3143         git_print_page_nav('commit', '',
3144                            $hash, $co{'tree'}, $hash,
3145                            join (' | ', @views_nav));
3146
3147         if (defined $co{'parent'}) {
3148                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3149         } else {
3150                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3151         }
3152         print "<div class=\"title_text\">\n" .
3153               "<table cellspacing=\"0\">\n";
3154         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3155               "<tr>" .
3156               "<td></td><td> $ad{'rfc2822'}";
3157         if ($ad{'hour_local'} < 6) {
3158                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3159                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3160         } else {
3161                 printf(" (%02d:%02d %s)",
3162                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3163         }
3164         print "</td>" .
3165               "</tr>\n";
3166         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3167         print "<tr><td></td><td> $cd{'rfc2822'}" .
3168               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3169               "</td></tr>\n";
3170         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3171         print "<tr>" .
3172               "<td>tree</td>" .
3173               "<td class=\"sha1\">" .
3174               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3175                        class => "list"}, $co{'tree'}) .
3176               "</td>" .
3177               "<td class=\"link\">" .
3178               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3179                       "tree");
3180         if ($have_snapshot) {
3181                 print " | " .
3182                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3183         }
3184         print "</td>" .
3185               "</tr>\n";
3186         my $parents = $co{'parents'};
3187         foreach my $par (@$parents) {
3188                 print "<tr>" .
3189                       "<td>parent</td>" .
3190                       "<td class=\"sha1\">" .
3191                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3192                                class => "list"}, $par) .
3193                       "</td>" .
3194                       "<td class=\"link\">" .
3195                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3196                       " | " .
3197                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3198                       "</td>" .
3199                       "</tr>\n";
3200         }
3201         print "</table>".
3202               "</div>\n";
3203
3204         print "<div class=\"page_body\">\n";
3205         git_print_log($co{'comment'});
3206         print "</div>\n";
3207
3208         git_difftree_body(\@difftree, $hash, $parent);
3209
3210         git_footer_html();
3211 }
3212
3213 sub git_blobdiff {
3214         my $format = shift || 'html';
3215
3216         my $fd;
3217         my @difftree;
3218         my %diffinfo;
3219         my $expires;
3220
3221         # preparing $fd and %diffinfo for git_patchset_body
3222         # new style URI
3223         if (defined $hash_base && defined $hash_parent_base) {
3224                 if (defined $file_name) {
3225                         # read raw output
3226                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3227                                 "--", $file_name
3228                                 or die_error(undef, "Open git-diff-tree failed");
3229                         @difftree = map { chomp; $_ } <$fd>;
3230                         close $fd
3231                                 or die_error(undef, "Reading git-diff-tree failed");
3232                         @difftree
3233                                 or die_error('404 Not Found', "Blob diff not found");
3234
3235                 } elsif (defined $hash &&
3236                          $hash =~ /[0-9a-fA-F]{40}/) {
3237                         # try to find filename from $hash
3238
3239                         # read filtered raw output
3240                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3241                                 or die_error(undef, "Open git-diff-tree failed");
3242                         @difftree =
3243                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3244                                 # $hash == to_id
3245                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3246                                 map { chomp; $_ } <$fd>;
3247                         close $fd
3248                                 or die_error(undef, "Reading git-diff-tree failed");
3249                         @difftree
3250                                 or die_error('404 Not Found', "Blob diff not found");
3251
3252                 } else {
3253                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3254                 }
3255
3256                 if (@difftree > 1) {
3257                         die_error('404 Not Found', "Ambiguous blob diff specification");
3258                 }
3259
3260                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3261                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3262                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3263
3264                 $hash_parent ||= $diffinfo{'from_id'};
3265                 $hash        ||= $diffinfo{'to_id'};
3266
3267                 # non-textual hash id's can be cached
3268                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3269                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3270                         $expires = '+1d';
3271                 }
3272
3273                 # open patch output
3274                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3275                         '-p', $hash_parent_base, $hash_base,
3276                         "--", $file_name
3277                         or die_error(undef, "Open git-diff-tree failed");
3278         }
3279
3280         # old/legacy style URI
3281         if (!%diffinfo && # if new style URI failed
3282             defined $hash && defined $hash_parent) {
3283                 # fake git-diff-tree raw output
3284                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3285                 $diffinfo{'from_id'} = $hash_parent;
3286                 $diffinfo{'to_id'}   = $hash;
3287                 if (defined $file_name) {
3288                         if (defined $file_parent) {
3289                                 $diffinfo{'status'} = '2';
3290                                 $diffinfo{'from_file'} = $file_parent;
3291                                 $diffinfo{'to_file'}   = $file_name;
3292                         } else { # assume not renamed
3293                                 $diffinfo{'status'} = '1';
3294                                 $diffinfo{'from_file'} = $file_name;
3295                                 $diffinfo{'to_file'}   = $file_name;
3296                         }
3297                 } else { # no filename given
3298                         $diffinfo{'status'} = '2';
3299                         $diffinfo{'from_file'} = $hash_parent;
3300                         $diffinfo{'to_file'}   = $hash;
3301                 }
3302
3303                 # non-textual hash id's can be cached
3304                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3305                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3306                         $expires = '+1d';
3307                 }
3308
3309                 # open patch output
3310                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3311                         or die_error(undef, "Open git-diff failed");
3312         } else  {
3313                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3314                         unless %diffinfo;
3315         }
3316
3317         # header
3318         if ($format eq 'html') {
3319                 my $formats_nav =
3320                         $cgi->a({-href => href(action=>"blobdiff_plain",
3321                                                hash=>$hash, hash_parent=>$hash_parent,
3322                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3323                                                file_name=>$file_name, file_parent=>$file_parent)},
3324                                 "raw");
3325                 git_header_html(undef, $expires);
3326                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3327                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3328                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3329                 } else {
3330                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3331                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3332                 }
3333                 if (defined $file_name) {
3334                         git_print_page_path($file_name, "blob", $hash_base);
3335                 } else {
3336                         print "<div class=\"page_path\"></div>\n";
3337                 }
3338
3339         } elsif ($format eq 'plain') {
3340                 print $cgi->header(
3341                         -type => 'text/plain',
3342                         -charset => 'utf-8',
3343                         -expires => $expires,
3344                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3345
3346                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3347
3348         } else {
3349                 die_error(undef, "Unknown blobdiff format");
3350         }
3351
3352         # patch
3353         if ($format eq 'html') {
3354                 print "<div class=\"page_body\">\n";
3355
3356                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3357                 close $fd;
3358
3359                 print "</div>\n"; # class="page_body"
3360                 git_footer_html();
3361
3362         } else {
3363                 while (my $line = <$fd>) {
3364                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3365                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3366
3367                         print $line;
3368
3369                         last if $line =~ m!^\+\+\+!;
3370                 }
3371                 local $/ = undef;
3372                 print <$fd>;
3373                 close $fd;
3374         }
3375 }
3376
3377 sub git_blobdiff_plain {
3378         git_blobdiff('plain');
3379 }
3380
3381 sub git_commitdiff {
3382         my $format = shift || 'html';
3383         my %co = parse_commit($hash);
3384         if (!%co) {
3385                 die_error(undef, "Unknown commit object");
3386         }
3387         if (!defined $hash_parent) {
3388                 $hash_parent = $co{'parent'} || '--root';
3389         }
3390
3391         # read commitdiff
3392         my $fd;
3393         my @difftree;
3394         if ($format eq 'html') {
3395                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3396                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3397                         or die_error(undef, "Open git-diff-tree failed");
3398
3399                 while (chomp(my $line = <$fd>)) {
3400                         # empty line ends raw part of diff-tree output
3401                         last unless $line;
3402                         push @difftree, $line;
3403                 }
3404
3405         } elsif ($format eq 'plain') {
3406                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3407                         '-p', $hash_parent, $hash
3408                         or die_error(undef, "Open git-diff-tree failed");
3409
3410         } else {
3411                 die_error(undef, "Unknown commitdiff format");
3412         }
3413
3414         # non-textual hash id's can be cached
3415         my $expires;
3416         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3417                 $expires = "+1d";
3418         }
3419
3420         # write commit message
3421         if ($format eq 'html') {
3422                 my $refs = git_get_references();
3423                 my $ref = format_ref_marker($refs, $co{'id'});
3424                 my $formats_nav =
3425                         $cgi->a({-href => href(action=>"commitdiff_plain",
3426                                                hash=>$hash, hash_parent=>$hash_parent)},
3427                                 "raw");
3428
3429                 git_header_html(undef, $expires);
3430                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3431                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3432                 git_print_authorship(\%co);
3433                 print "<div class=\"page_body\">\n";
3434                 print "<div class=\"log\">\n";
3435                 git_print_simplified_log($co{'comment'}, 1); # skip title
3436                 print "</div>\n"; # class="log"
3437
3438         } elsif ($format eq 'plain') {
3439                 my $refs = git_get_references("tags");
3440                 my $tagname = git_get_rev_name_tags($hash);
3441                 my $filename = basename($project) . "-$hash.patch";
3442
3443                 print $cgi->header(
3444                         -type => 'text/plain',
3445                         -charset => 'utf-8',
3446                         -expires => $expires,
3447                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3448                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3449                 print <<TEXT;
3450 From: $co{'author'}
3451 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3452 Subject: $co{'title'}
3453 TEXT
3454                 print "X-Git-Tag: $tagname\n" if $tagname;
3455                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3456
3457                 foreach my $line (@{$co{'comment'}}) {
3458                         print "$line\n";
3459                 }
3460                 print "---\n\n";
3461         }
3462
3463         # write patch
3464         if ($format eq 'html') {
3465                 git_difftree_body(\@difftree, $hash, $hash_parent);
3466                 print "<br/>\n";
3467
3468                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3469                 close $fd;
3470                 print "</div>\n"; # class="page_body"
3471                 git_footer_html();
3472
3473         } elsif ($format eq 'plain') {
3474                 local $/ = undef;
3475                 print <$fd>;
3476                 close $fd
3477                         or print "Reading git-diff-tree failed\n";
3478         }
3479 }
3480
3481 sub git_commitdiff_plain {
3482         git_commitdiff('plain');
3483 }
3484
3485 sub git_history {
3486         if (!defined $hash_base) {
3487                 $hash_base = git_get_head_hash($project);
3488         }
3489         if (!defined $page) {
3490                 $page = 0;
3491         }
3492         my $ftype;
3493         my %co = parse_commit($hash_base);
3494         if (!%co) {
3495                 die_error(undef, "Unknown commit object");
3496         }
3497
3498         my $refs = git_get_references();
3499         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3500
3501         if (!defined $hash && defined $file_name) {
3502                 $hash = git_get_hash_by_path($hash_base, $file_name);
3503         }
3504         if (defined $hash) {
3505                 $ftype = git_get_type($hash);
3506         }
3507
3508         open my $fd, "-|",
3509                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3510                         or die_error(undef, "Open git-rev-list-failed");
3511         my @revlist = map { chomp; $_ } <$fd>;
3512         close $fd
3513                 or die_error(undef, "Reading git-rev-list failed");
3514
3515         my $paging_nav = '';
3516         if ($page > 0) {
3517                 $paging_nav .=
3518                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3519                                                file_name=>$file_name)},
3520                                 "first");
3521                 $paging_nav .= " &sdot; " .
3522                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3523                                                file_name=>$file_name, page=>$page-1),
3524                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3525         } else {
3526                 $paging_nav .= "first";
3527                 $paging_nav .= " &sdot; prev";
3528         }
3529         if ($#revlist >= (100 * ($page+1)-1)) {
3530                 $paging_nav .= " &sdot; " .
3531                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3532                                                file_name=>$file_name, page=>$page+1),
3533                                  -accesskey => "n", -title => "Alt-n"}, "next");
3534         } else {
3535                 $paging_nav .= " &sdot; next";
3536         }
3537         my $next_link = '';
3538         if ($#revlist >= (100 * ($page+1)-1)) {
3539                 $next_link =
3540                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3541                                                file_name=>$file_name, page=>$page+1),
3542                                  -title => "Alt-n"}, "next");
3543         }
3544
3545         git_header_html();
3546         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3547         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3548         git_print_page_path($file_name, $ftype, $hash_base);
3549
3550         git_history_body(\@revlist, ($page * 100), $#revlist,
3551                          $refs, $hash_base, $ftype, $next_link);
3552
3553         git_footer_html();
3554 }
3555
3556 sub git_search {
3557         if (!defined $searchtext) {
3558                 die_error(undef, "Text field empty");
3559         }
3560         if (!defined $hash) {
3561                 $hash = git_get_head_hash($project);
3562         }
3563         my %co = parse_commit($hash);
3564         if (!%co) {
3565                 die_error(undef, "Unknown commit object");
3566         }
3567
3568         my $commit_search = 1;
3569         my $author_search = 0;
3570         my $committer_search = 0;
3571         my $pickaxe_search = 0;
3572         if ($searchtext =~ s/^author\\://i) {
3573                 $author_search = 1;
3574         } elsif ($searchtext =~ s/^committer\\://i) {
3575                 $committer_search = 1;
3576         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3577                 $commit_search = 0;
3578                 $pickaxe_search = 1;
3579
3580                 # pickaxe may take all resources of your box and run for several minutes
3581                 # with every query - so decide by yourself how public you make this feature
3582                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3583                 if (!$have_pickaxe) {
3584                         die_error('403 Permission denied', "Permission denied");
3585                 }
3586         }
3587         git_header_html();
3588         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3589         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3590
3591         print "<table cellspacing=\"0\">\n";
3592         my $alternate = 1;
3593         if ($commit_search) {
3594                 $/ = "\0";
3595                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3596                 while (my $commit_text = <$fd>) {
3597                         if (!grep m/$searchtext/i, $commit_text) {
3598                                 next;
3599                         }
3600                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3601                                 next;
3602                         }
3603                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3604                                 next;
3605                         }
3606                         my @commit_lines = split "\n", $commit_text;
3607                         my %co = parse_commit(undef, \@commit_lines);
3608                         if (!%co) {
3609                                 next;
3610                         }
3611                         if ($alternate) {
3612                                 print "<tr class=\"dark\">\n";
3613                         } else {
3614                                 print "<tr class=\"light\">\n";
3615                         }
3616                         $alternate ^= 1;
3617                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3618                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3619                               "<td>" .
3620                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3621                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3622                         my $comment = $co{'comment'};
3623                         foreach my $line (@$comment) {
3624                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3625                                         my $lead = esc_html($1) || "";
3626                                         $lead = chop_str($lead, 30, 10);
3627                                         my $match = esc_html($2) || "";
3628                                         my $trail = esc_html($3) || "";
3629                                         $trail = chop_str($trail, 30, 10);
3630                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3631                                         print chop_str($text, 80, 5) . "<br/>\n";
3632                                 }
3633                         }
3634                         print "</td>\n" .
3635                               "<td class=\"link\">" .
3636                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3637                               " | " .
3638                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3639                         print "</td>\n" .
3640                               "</tr>\n";
3641                 }
3642                 close $fd;
3643         }
3644
3645         if ($pickaxe_search) {
3646                 $/ = "\n";
3647                 my $git_command = git_cmd_str();
3648                 open my $fd, "-|", "$git_command rev-list $hash | " .
3649                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3650                 undef %co;
3651                 my @files;
3652                 while (my $line = <$fd>) {
3653                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3654                                 my %set;
3655                                 $set{'file'} = $6;
3656                                 $set{'from_id'} = $3;
3657                                 $set{'to_id'} = $4;
3658                                 $set{'id'} = $set{'to_id'};
3659                                 if ($set{'id'} =~ m/0{40}/) {
3660                                         $set{'id'} = $set{'from_id'};
3661                                 }
3662                                 if ($set{'id'} =~ m/0{40}/) {
3663                                         next;
3664                                 }
3665                                 push @files, \%set;
3666                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3667                                 if (%co) {
3668                                         if ($alternate) {
3669                                                 print "<tr class=\"dark\">\n";
3670                                         } else {
3671                                                 print "<tr class=\"light\">\n";
3672                                         }
3673                                         $alternate ^= 1;
3674                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3675                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3676                                               "<td>" .
3677                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3678                                                       -class => "list subject"},
3679                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3680                                         while (my $setref = shift @files) {
3681                                                 my %set = %$setref;
3682                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3683                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3684                                                               -class => "list"},
3685                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3686                                                       "<br/>\n";
3687                                         }
3688                                         print "</td>\n" .
3689                                               "<td class=\"link\">" .
3690                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3691                                               " | " .
3692                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3693                                         print "</td>\n" .
3694                                               "</tr>\n";
3695                                 }
3696                                 %co = parse_commit($1);
3697                         }
3698                 }
3699                 close $fd;
3700         }
3701         print "</table>\n";
3702         git_footer_html();
3703 }
3704
3705 sub git_shortlog {
3706         my $head = git_get_head_hash($project);
3707         if (!defined $hash) {
3708                 $hash = $head;
3709         }
3710         if (!defined $page) {
3711                 $page = 0;
3712         }
3713         my $refs = git_get_references();
3714
3715         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3716         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3717                 or die_error(undef, "Open git-rev-list failed");
3718         my @revlist = map { chomp; $_ } <$fd>;
3719         close $fd;
3720
3721         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3722         my $next_link = '';
3723         if ($#revlist >= (100 * ($page+1)-1)) {
3724                 $next_link =
3725                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3726                                  -title => "Alt-n"}, "next");
3727         }
3728
3729
3730         git_header_html();
3731         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3732         git_print_header_div('summary', $project);
3733
3734         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3735
3736         git_footer_html();
3737 }
3738
3739 ## ......................................................................
3740 ## feeds (RSS, OPML)
3741
3742 sub git_rss {
3743         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3744         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3745                 or die_error(undef, "Open git-rev-list failed");
3746         my @revlist = map { chomp; $_ } <$fd>;
3747         close $fd or die_error(undef, "Reading git-rev-list failed");
3748         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3749         print <<XML;
3750 <?xml version="1.0" encoding="utf-8"?>
3751 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3752 <channel>
3753 <title>$project $my_uri $my_url</title>
3754 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3755 <description>$project log</description>
3756 <language>en</language>
3757 XML
3758
3759         for (my $i = 0; $i <= $#revlist; $i++) {
3760                 my $commit = $revlist[$i];
3761                 my %co = parse_commit($commit);
3762                 # we read 150, we always show 30 and the ones more recent than 48 hours
3763                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3764                         last;
3765                 }
3766                 my %cd = parse_date($co{'committer_epoch'});
3767                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3768                         $co{'parent'}, $co{'id'}
3769                         or next;
3770                 my @difftree = map { chomp; $_ } <$fd>;
3771                 close $fd
3772                         or next;
3773                 print "<item>\n" .
3774                       "<title>" .
3775                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3776                       "</title>\n" .
3777                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3778                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3779                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3780                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3781                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3782                       "<content:encoded>" .
3783                       "<![CDATA[\n";
3784                 my $comment = $co{'comment'};
3785                 foreach my $line (@$comment) {
3786                         $line = to_utf8($line);
3787                         print "$line<br/>\n";
3788                 }
3789                 print "<br/>\n";
3790                 foreach my $line (@difftree) {
3791                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3792                                 next;
3793                         }
3794                         my $file = esc_html(unquote($7));
3795                         $file = to_utf8($file);
3796                         print "$file<br/>\n";
3797                 }
3798                 print "]]>\n" .
3799                       "</content:encoded>\n" .
3800                       "</item>\n";
3801         }
3802         print "</channel></rss>";
3803 }
3804
3805 sub git_opml {
3806         my @list = git_get_projects_list();
3807
3808         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3809         print <<XML;
3810 <?xml version="1.0" encoding="utf-8"?>
3811 <opml version="1.0">
3812 <head>
3813   <title>$site_name Git OPML Export</title>
3814 </head>
3815 <body>
3816 <outline text="git RSS feeds">
3817 XML
3818
3819         foreach my $pr (@list) {
3820                 my %proj = %$pr;
3821                 my $head = git_get_head_hash($proj{'path'});
3822                 if (!defined $head) {
3823                         next;
3824                 }
3825                 $git_dir = "$projectroot/$proj{'path'}";
3826                 my %co = parse_commit($head);
3827                 if (!%co) {
3828                         next;
3829                 }
3830
3831                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3832                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3833                 my $html = "$my_url?p=$proj{'path'};a=summary";
3834                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3835         }
3836         print <<XML;
3837 </outline>
3838 </body>
3839 </opml>
3840 XML
3841 }