gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # location for temporary files needed for diffs
  35 our $git_temp = "/tmp/gitweb";
  36
  37 # target of the home link on top of all pages
  38 our $home_link = $my_uri || "/";
  39
  40 # string of the home link on top of all pages
  41 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  42
  43 # name of your site or organization to appear in page titles
  44 # replace this with something more descriptive for clearer bookmarks
  45 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  46
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49
  50 # URI of default stylesheet
  51 our $stylesheet = "++GITWEB_CSS++";
  52 # URI of GIT logo
  53 our $logo = "++GITWEB_LOGO++";
  54
  55 # source of projects list
  56 our $projects_list = "++GITWEB_LIST++";
  57
  58 # list of git base URLs used for URL to where fetch project from,
  59 # i.e. full URL is "$git_base_url/$project"
  60 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  61
  62 # default blob_plain mimetype and default charset for text/plain blob
  63 our $default_blob_plain_mimetype = 'text/plain';
  64 our $default_text_plain_charset  = undef;
  65
  66 # file to use for guessing MIME types before trying /etc/mime.types
  67 # (relative to the current git repository)
  68 our $mimetypes_file = undef;
  69
  70 # You define site-wide feature defaults here; override them with
  71 # $GITWEB_CONFIG as necessary.
  72 our %feature = (
  73         # feature => {'sub' => feature-sub, 'override' => allow-override, 'default' => [ default options...]
  74         # if feature is overridable, feature-sub will be called with default options;
  75         # return value indicates if to enable specified feature
  76
  77         'blame' => {
  78                 'sub' => \&feature_blame,
  79                 'override' => 0,
  80                 'default' => [0]},
  81
  82         'snapshot' => {
  83                 'sub' => \&feature_snapshot,
  84                 'override' => 0,
  85                 #         => [content-encoding, suffix, program]
  86                 'default' => ['x-gzip', 'gz', 'gzip']},
  87 );
  88
  89 sub gitweb_check_feature {
  90         my ($name) = @_;
  91         return undef unless exists $feature{$name};
  92         my ($sub, $override, @defaults) = (
  93                 $feature{$name}{'sub'},
  94                 $feature{$name}{'override'},
  95                 @{$feature{$name}{'default'}});
  96         if (!$override) { return @defaults; }
  97         return $sub->(@defaults);
  98 }
  99
 100 # To enable system wide have in $GITWEB_CONFIG
 101 # $feature{'blame'}{'default'} =  [1];
 102 # To have project specific config enable override in  $GITWEB_CONFIG
 103 # $feature{'blame'}{'override'} =  1;
 104 # and in project config gitweb.blame = 0|1;
 105
 106 sub feature_blame {
 107         my ($val) = git_get_project_config('blame', '--bool');
 108
 109         if ($val eq 'true') {
 110                 return 1;
 111         } elsif ($val eq 'false') {
 112                 return 0;
 113         }
 114
 115         return $_[0];
 116 }
 117
 118 # To disable system wide have in $GITWEB_CONFIG
 119 # $feature{'snapshot'}{'default'} =  [undef];
 120 # To have project specific config enable override in  $GITWEB_CONFIG
 121 # $feature{'blame'}{'override'} =  1;
 122 # and in project config  gitweb.snapshot = none|gzip|bzip2
 123
 124 sub feature_snapshot {
 125         my ($ctype, $suffix, $command) = @_;
 126
 127         my ($val) = git_get_project_config('snapshot');
 128
 129         if ($val eq 'gzip') {
 130                 return ('x-gzip', 'gz', 'gzip');
 131         } elsif ($val eq 'bzip2') {
 132                 return ('x-bzip2', 'bz2', 'bzip2');
 133         } elsif ($val eq 'none') {
 134                 return ();
 135         }
 136
 137         return ($ctype, $suffix, $command);
 138 }
 139
 140 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 141 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 142
 143 # version of the core git binary
 144 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 145
 146 $projects_list ||= $projectroot;
 147 if (! -d $git_temp) {
 148         mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
 149 }
 150
 151 # ======================================================================
 152 # input validation and dispatch
 153 our $action = $cgi->param('a');
 154 if (defined $action) {
 155         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 156                 die_error(undef, "Invalid action parameter");
 157         }
 158 }
 159
 160 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 161 if (defined $project) {
 162         $project =~ s|^/||;
 163         $project =~ s|/$||;
 164         $project = undef unless $project;
 165 }
 166 if (defined $project) {
 167         if (!validate_input($project)) {
 168                 die_error(undef, "Invalid project parameter");
 169         }
 170         if (!(-d "$projectroot/$project")) {
 171                 die_error(undef, "No such directory");
 172         }
 173         if (!(-e "$projectroot/$project/HEAD")) {
 174                 die_error(undef, "No such project");
 175         }
 176         $ENV{'GIT_DIR'} = "$projectroot/$project";
 177 }
 178
 179 our $file_name = $cgi->param('f');
 180 if (defined $file_name) {
 181         if (!validate_input($file_name)) {
 182                 die_error(undef, "Invalid file parameter");
 183         }
 184 }
 185
 186 our $file_parent = $cgi->param('fp');
 187 if (defined $file_parent) {
 188         if (!validate_input($file_parent)) {
 189                 die_error(undef, "Invalid file parent parameter");
 190         }
 191 }
 192
 193 our $hash = $cgi->param('h');
 194 if (defined $hash) {
 195         if (!validate_input($hash)) {
 196                 die_error(undef, "Invalid hash parameter");
 197         }
 198 }
 199
 200 our $hash_parent = $cgi->param('hp');
 201 if (defined $hash_parent) {
 202         if (!validate_input($hash_parent)) {
 203                 die_error(undef, "Invalid hash parent parameter");
 204         }
 205 }
 206
 207 our $hash_base = $cgi->param('hb');
 208 if (defined $hash_base) {
 209         if (!validate_input($hash_base)) {
 210                 die_error(undef, "Invalid hash base parameter");
 211         }
 212 }
 213
 214 our $page = $cgi->param('pg');
 215 if (defined $page) {
 216         if ($page =~ m/[^0-9]$/) {
 217                 die_error(undef, "Invalid page parameter");
 218         }
 219 }
 220
 221 our $searchtext = $cgi->param('s');
 222 if (defined $searchtext) {
 223         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 224                 die_error(undef, "Invalid search parameter");
 225         }
 226         $searchtext = quotemeta $searchtext;
 227 }
 228
 229 # dispatch
 230 my %actions = (
 231         "blame" => \&git_blame2,
 232         "blobdiff" => \&git_blobdiff,
 233         "blobdiff_plain" => \&git_blobdiff_plain,
 234         "blob" => \&git_blob,
 235         "blob_plain" => \&git_blob_plain,
 236         "commitdiff" => \&git_commitdiff,
 237         "commitdiff_plain" => \&git_commitdiff_plain,
 238         "commit" => \&git_commit,
 239         "heads" => \&git_heads,
 240         "history" => \&git_history,
 241         "log" => \&git_log,
 242         "rss" => \&git_rss,
 243         "search" => \&git_search,
 244         "shortlog" => \&git_shortlog,
 245         "summary" => \&git_summary,
 246         "tag" => \&git_tag,
 247         "tags" => \&git_tags,
 248         "tree" => \&git_tree,
 249         "snapshot" => \&git_snapshot,
 250         # those below don't need $project
 251         "opml" => \&git_opml,
 252         "project_list" => \&git_project_list,
 253 );
 254
 255 if (defined $project) {
 256         $action ||= 'summary';
 257 } else {
 258         $action ||= 'project_list';
 259 }
 260 if (!defined($actions{$action})) {
 261         die_error(undef, "Unknown action");
 262 }
 263 $actions{$action}->();
 264 exit;
 265
 266 ## ======================================================================
 267 ## action links
 268
 269 sub href(%) {
 270         my %params = @_;
 271
 272         my @mapping = (
 273                 action => "a",
 274                 project => "p",
 275                 file_name => "f",
 276                 file_parent => "fp",
 277                 hash => "h",
 278                 hash_parent => "hp",
 279                 hash_base => "hb",
 280                 page => "pg",
 281                 searchtext => "s",
 282         );
 283         my %mapping = @mapping;
 284
 285         $params{"project"} ||= $project;
 286
 287         my @result = ();
 288         for (my $i = 0; $i < @mapping; $i += 2) {
 289                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 290                 if (defined $params{$name}) {
 291                         push @result, $symbol . "=" . esc_param($params{$name});
 292                 }
 293         }
 294         return "$my_uri?" . join(';', @result);
 295 }
 296
 297
 298 ## ======================================================================
 299 ## validation, quoting/unquoting and escaping
 300
 301 sub validate_input {
 302         my $input = shift;
 303
 304         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 305                 return $input;
 306         }
 307         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 308                 return undef;
 309         }
 310         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 311                 return undef;
 312         }
 313         return $input;
 314 }
 315
 316 # quote unsafe chars, but keep the slash, even when it's not
 317 # correct, but quoted slashes look too horrible in bookmarks
 318 sub esc_param {
 319         my $str = shift;
 320         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 321         $str =~ s/\+/%2B/g;
 322         $str =~ s/ /\+/g;
 323         return $str;
 324 }
 325
 326 # replace invalid utf8 character with SUBSTITUTION sequence
 327 sub esc_html {
 328         my $str = shift;
 329         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 330         $str = escapeHTML($str);
 331         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 332         return $str;
 333 }
 334
 335 # git may return quoted and escaped filenames
 336 sub unquote {
 337         my $str = shift;
 338         if ($str =~ m/^"(.*)"$/) {
 339                 $str = $1;
 340                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 341         }
 342         return $str;
 343 }
 344
 345 # escape tabs (convert tabs to spaces)
 346 sub untabify {
 347         my $line = shift;
 348
 349         while ((my $pos = index($line, "\t")) != -1) {
 350                 if (my $count = (8 - ($pos % 8))) {
 351                         my $spaces = ' ' x $count;
 352                         $line =~ s/\t/$spaces/;
 353                 }
 354         }
 355
 356         return $line;
 357 }
 358
 359 ## ----------------------------------------------------------------------
 360 ## HTML aware string manipulation
 361
 362 sub chop_str {
 363         my $str = shift;
 364         my $len = shift;
 365         my $add_len = shift || 10;
 366
 367         # allow only $len chars, but don't cut a word if it would fit in $add_len
 368         # if it doesn't fit, cut it if it's still longer than the dots we would add
 369         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 370         my $body = $1;
 371         my $tail = $2;
 372         if (length($tail) > 4) {
 373                 $tail = " ...";
 374                 $body =~ s/&[^;]*$//; # remove chopped character entities
 375         }
 376         return "$body$tail";
 377 }
 378
 379 ## ----------------------------------------------------------------------
 380 ## functions returning short strings
 381
 382 # CSS class for given age value (in seconds)
 383 sub age_class {
 384         my $age = shift;
 385
 386         if ($age < 60*60*2) {
 387                 return "age0";
 388         } elsif ($age < 60*60*24*2) {
 389                 return "age1";
 390         } else {
 391                 return "age2";
 392         }
 393 }
 394
 395 # convert age in seconds to "nn units ago" string
 396 sub age_string {
 397         my $age = shift;
 398         my $age_str;
 399
 400         if ($age > 60*60*24*365*2) {
 401                 $age_str = (int $age/60/60/24/365);
 402                 $age_str .= " years ago";
 403         } elsif ($age > 60*60*24*(365/12)*2) {
 404                 $age_str = int $age/60/60/24/(365/12);
 405                 $age_str .= " months ago";
 406         } elsif ($age > 60*60*24*7*2) {
 407                 $age_str = int $age/60/60/24/7;
 408                 $age_str .= " weeks ago";
 409         } elsif ($age > 60*60*24*2) {
 410                 $age_str = int $age/60/60/24;
 411                 $age_str .= " days ago";
 412         } elsif ($age > 60*60*2) {
 413                 $age_str = int $age/60/60;
 414                 $age_str .= " hours ago";
 415         } elsif ($age > 60*2) {
 416                 $age_str = int $age/60;
 417                 $age_str .= " min ago";
 418         } elsif ($age > 2) {
 419                 $age_str = int $age;
 420                 $age_str .= " sec ago";
 421         } else {
 422                 $age_str .= " right now";
 423         }
 424         return $age_str;
 425 }
 426
 427 # convert file mode in octal to symbolic file mode string
 428 sub mode_str {
 429         my $mode = oct shift;
 430
 431         if (S_ISDIR($mode & S_IFMT)) {
 432                 return 'drwxr-xr-x';
 433         } elsif (S_ISLNK($mode)) {
 434                 return 'lrwxrwxrwx';
 435         } elsif (S_ISREG($mode)) {
 436                 # git cares only about the executable bit
 437                 if ($mode & S_IXUSR) {
 438                         return '-rwxr-xr-x';
 439                 } else {
 440                         return '-rw-r--r--';
 441                 };
 442         } else {
 443                 return '----------';
 444         }
 445 }
 446
 447 # convert file mode in octal to file type string
 448 sub file_type {
 449         my $mode = oct shift;
 450
 451         if (S_ISDIR($mode & S_IFMT)) {
 452                 return "directory";
 453         } elsif (S_ISLNK($mode)) {
 454                 return "symlink";
 455         } elsif (S_ISREG($mode)) {
 456                 return "file";
 457         } else {
 458                 return "unknown";
 459         }
 460 }
 461
 462 ## ----------------------------------------------------------------------
 463 ## functions returning short HTML fragments, or transforming HTML fragments
 464 ## which don't beling to other sections
 465
 466 # format line of commit message or tag comment
 467 sub format_log_line_html {
 468         my $line = shift;
 469
 470         $line = esc_html($line);
 471         $line =~ s/ /&nbsp;/g;
 472         if ($line =~ m/([0-9a-fA-F]{40})/) {
 473                 my $hash_text = $1;
 474                 if (git_get_type($hash_text) eq "commit") {
 475                         my $link =
 476                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 477                                         -class => "text"}, $hash_text);
 478                         $line =~ s/$hash_text/$link/;
 479                 }
 480         }
 481         return $line;
 482 }
 483
 484 # format marker of refs pointing to given object
 485 sub format_ref_marker {
 486         my ($refs, $id) = @_;
 487         my $markers = '';
 488
 489         if (defined $refs->{$id}) {
 490                 foreach my $ref (@{$refs->{$id}}) {
 491                         my ($type, $name) = qw();
 492                         # e.g. tags/v2.6.11 or heads/next
 493                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 494                                 $type = $1;
 495                                 $name = $2;
 496                         } else {
 497                                 $type = "ref";
 498                                 $name = $ref;
 499                         }
 500
 501                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 502                 }
 503         }
 504
 505         if ($markers) {
 506                 return ' <span class="refs">'. $markers . '</span>';
 507         } else {
 508                 return "";
 509         }
 510 }
 511
 512 # format, perhaps shortened and with markers, title line
 513 sub format_subject_html {
 514         my ($long, $short, $href, $extra) = @_;
 515         $extra = '' unless defined($extra);
 516
 517         if (length($short) < length($long)) {
 518                 return $cgi->a({-href => $href, -class => "list subject",
 519                                 -title => $long},
 520                        esc_html($short) . $extra);
 521         } else {
 522                 return $cgi->a({-href => $href, -class => "list subject"},
 523                        esc_html($long)  . $extra);
 524         }
 525 }
 526
 527 sub format_diff_line {
 528         my $line = shift;
 529         my $char = substr($line, 0, 1);
 530         my $diff_class = "";
 531
 532         chomp $line;
 533
 534         if ($char eq '+') {
 535                 $diff_class = " add";
 536         } elsif ($char eq "-") {
 537                 $diff_class = " rem";
 538         } elsif ($char eq "@") {
 539                 $diff_class = " chunk_header";
 540         } elsif ($char eq "\\") {
 541                 $diff_class = " incomplete";
 542         }
 543         $line = untabify($line);
 544         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 545 }
 546
 547 ## ----------------------------------------------------------------------
 548 ## git utility subroutines, invoking git commands
 549
 550 # get HEAD ref of given project as hash
 551 sub git_get_head_hash {
 552         my $project = shift;
 553         my $oENV = $ENV{'GIT_DIR'};
 554         my $retval = undef;
 555         $ENV{'GIT_DIR'} = "$projectroot/$project";
 556         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 557                 my $head = <$fd>;
 558                 close $fd;
 559                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 560                         $retval = $1;
 561                 }
 562         }
 563         if (defined $oENV) {
 564                 $ENV{'GIT_DIR'} = $oENV;
 565         }
 566         return $retval;
 567 }
 568
 569 # get type of given object
 570 sub git_get_type {
 571         my $hash = shift;
 572
 573         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 574         my $type = <$fd>;
 575         close $fd or return;
 576         chomp $type;
 577         return $type;
 578 }
 579
 580 sub git_get_project_config {
 581         my ($key, $type) = @_;
 582
 583         return unless ($key);
 584         $key =~ s/^gitweb\.//;
 585         return if ($key =~ m/\W/);
 586
 587         my @x = ($GIT, 'repo-config');
 588         if (defined $type) { push @x, $type; }
 589         push @x, "--get";
 590         push @x, "gitweb.$key";
 591         my $val = qx(@x);
 592         chomp $val;
 593         return ($val);
 594 }
 595
 596 # get hash of given path at given ref
 597 sub git_get_hash_by_path {
 598         my $base = shift;
 599         my $path = shift || return undef;
 600
 601         my $tree = $base;
 602
 603         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 604                 or die_error(undef, "Open git-ls-tree failed");
 605         my $line = <$fd>;
 606         close $fd or return undef;
 607
 608         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 609         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 610         return $3;
 611 }
 612
 613 ## ......................................................................
 614 ## git utility functions, directly accessing git repository
 615
 616 # assumes that PATH is not symref
 617 sub git_get_hash_by_ref {
 618         my $path = shift;
 619
 620         open my $fd, "$projectroot/$path" or return undef;
 621         my $head = <$fd>;
 622         close $fd;
 623         chomp $head;
 624         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 625                 return $head;
 626         }
 627 }
 628
 629 sub git_get_project_description {
 630         my $path = shift;
 631
 632         open my $fd, "$projectroot/$path/description" or return undef;
 633         my $descr = <$fd>;
 634         close $fd;
 635         chomp $descr;
 636         return $descr;
 637 }
 638
 639 sub git_get_project_url_list {
 640         my $path = shift;
 641
 642         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 643         my @git_project_url_list = map { chomp; $_ } <$fd>;
 644         close $fd;
 645
 646         return wantarray ? @git_project_url_list : \@git_project_url_list;
 647 }
 648
 649 sub git_get_projects_list {
 650         my @list;
 651
 652         if (-d $projects_list) {
 653                 # search in directory
 654                 my $dir = $projects_list;
 655                 opendir my ($dh), $dir or return undef;
 656                 while (my $dir = readdir($dh)) {
 657                         if (-e "$projectroot/$dir/HEAD") {
 658                                 my $pr = {
 659                                         path => $dir,
 660                                 };
 661                                 push @list, $pr
 662                         }
 663                 }
 664                 closedir($dh);
 665         } elsif (-f $projects_list) {
 666                 # read from file(url-encoded):
 667                 # 'git%2Fgit.git Linus+Torvalds'
 668                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 669                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 670                 open my ($fd), $projects_list or return undef;
 671                 while (my $line = <$fd>) {
 672                         chomp $line;
 673                         my ($path, $owner) = split ' ', $line;
 674                         $path = unescape($path);
 675                         $owner = unescape($owner);
 676                         if (!defined $path) {
 677                                 next;
 678                         }
 679                         if (-e "$projectroot/$path/HEAD") {
 680                                 my $pr = {
 681                                         path => $path,
 682                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 683                                 };
 684                                 push @list, $pr
 685                         }
 686                 }
 687                 close $fd;
 688         }
 689         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 690         return @list;
 691 }
 692
 693 sub git_get_project_owner {
 694         my $project = shift;
 695         my $owner;
 696
 697         return undef unless $project;
 698
 699         # read from file (url-encoded):
 700         # 'git%2Fgit.git Linus+Torvalds'
 701         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 702         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 703         if (-f $projects_list) {
 704                 open (my $fd , $projects_list);
 705                 while (my $line = <$fd>) {
 706                         chomp $line;
 707                         my ($pr, $ow) = split ' ', $line;
 708                         $pr = unescape($pr);
 709                         $ow = unescape($ow);
 710                         if ($pr eq $project) {
 711                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 712                                 last;
 713                         }
 714                 }
 715                 close $fd;
 716         }
 717         if (!defined $owner) {
 718                 $owner = get_file_owner("$projectroot/$project");
 719         }
 720
 721         return $owner;
 722 }
 723
 724 sub git_get_references {
 725         my $type = shift || "";
 726         my %refs;
 727         my $fd;
 728         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 729         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 730         if (-f "$projectroot/$project/info/refs") {
 731                 open $fd, "$projectroot/$project/info/refs"
 732                         or return;
 733         } else {
 734                 open $fd, "-|", $GIT, "ls-remote", "."
 735                         or return;
 736         }
 737
 738         while (my $line = <$fd>) {
 739                 chomp $line;
 740                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 741                         if (defined $refs{$1}) {
 742                                 push @{$refs{$1}}, $2;
 743                         } else {
 744                                 $refs{$1} = [ $2 ];
 745                         }
 746                 }
 747         }
 748         close $fd or return;
 749         return \%refs;
 750 }
 751
 752 ## ----------------------------------------------------------------------
 753 ## parse to hash functions
 754
 755 sub parse_date {
 756         my $epoch = shift;
 757         my $tz = shift || "-0000";
 758
 759         my %date;
 760         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 761         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 762         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 763         $date{'hour'} = $hour;
 764         $date{'minute'} = $min;
 765         $date{'mday'} = $mday;
 766         $date{'day'} = $days[$wday];
 767         $date{'month'} = $months[$mon];
 768         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 769                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 770         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 771                              $mday, $months[$mon], $hour ,$min;
 772
 773         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 774         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 775         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 776         $date{'hour_local'} = $hour;
 777         $date{'minute_local'} = $min;
 778         $date{'tz_local'} = $tz;
 779         return %date;
 780 }
 781
 782 sub parse_tag {
 783         my $tag_id = shift;
 784         my %tag;
 785         my @comment;
 786
 787         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 788         $tag{'id'} = $tag_id;
 789         while (my $line = <$fd>) {
 790                 chomp $line;
 791                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 792                         $tag{'object'} = $1;
 793                 } elsif ($line =~ m/^type (.+)$/) {
 794                         $tag{'type'} = $1;
 795                 } elsif ($line =~ m/^tag (.+)$/) {
 796                         $tag{'name'} = $1;
 797                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 798                         $tag{'author'} = $1;
 799                         $tag{'epoch'} = $2;
 800                         $tag{'tz'} = $3;
 801                 } elsif ($line =~ m/--BEGIN/) {
 802                         push @comment, $line;
 803                         last;
 804                 } elsif ($line eq "") {
 805                         last;
 806                 }
 807         }
 808         push @comment, <$fd>;
 809         $tag{'comment'} = \@comment;
 810         close $fd or return;
 811         if (!defined $tag{'name'}) {
 812                 return
 813         };
 814         return %tag
 815 }
 816
 817 sub parse_commit {
 818         my $commit_id = shift;
 819         my $commit_text = shift;
 820
 821         my @commit_lines;
 822         my %co;
 823
 824         if (defined $commit_text) {
 825                 @commit_lines = @$commit_text;
 826         } else {
 827                 $/ = "\0";
 828                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 829                         or return;
 830                 @commit_lines = split '\n', <$fd>;
 831                 close $fd or return;
 832                 $/ = "\n";
 833                 pop @commit_lines;
 834         }
 835         my $header = shift @commit_lines;
 836         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 837                 return;
 838         }
 839         ($co{'id'}, my @parents) = split ' ', $header;
 840         $co{'parents'} = \@parents;
 841         $co{'parent'} = $parents[0];
 842         while (my $line = shift @commit_lines) {
 843                 last if $line eq "\n";
 844                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 845                         $co{'tree'} = $1;
 846                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 847                         $co{'author'} = $1;
 848                         $co{'author_epoch'} = $2;
 849                         $co{'author_tz'} = $3;
 850                         if ($co{'author'} =~ m/^([^<]+) </) {
 851                                 $co{'author_name'} = $1;
 852                         } else {
 853                                 $co{'author_name'} = $co{'author'};
 854                         }
 855                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 856                         $co{'committer'} = $1;
 857                         $co{'committer_epoch'} = $2;
 858                         $co{'committer_tz'} = $3;
 859                         $co{'committer_name'} = $co{'committer'};
 860                         $co{'committer_name'} =~ s/ <.*//;
 861                 }
 862         }
 863         if (!defined $co{'tree'}) {
 864                 return;
 865         };
 866
 867         foreach my $title (@commit_lines) {
 868                 $title =~ s/^    //;
 869                 if ($title ne "") {
 870                         $co{'title'} = chop_str($title, 80, 5);
 871                         # remove leading stuff of merges to make the interesting part visible
 872                         if (length($title) > 50) {
 873                                 $title =~ s/^Automatic //;
 874                                 $title =~ s/^merge (of|with) /Merge ... /i;
 875                                 if (length($title) > 50) {
 876                                         $title =~ s/(http|rsync):\/\///;
 877                                 }
 878                                 if (length($title) > 50) {
 879                                         $title =~ s/(master|www|rsync)\.//;
 880                                 }
 881                                 if (length($title) > 50) {
 882                                         $title =~ s/kernel.org:?//;
 883                                 }
 884                                 if (length($title) > 50) {
 885                                         $title =~ s/\/pub\/scm//;
 886                                 }
 887                         }
 888                         $co{'title_short'} = chop_str($title, 50, 5);
 889                         last;
 890                 }
 891         }
 892         # remove added spaces
 893         foreach my $line (@commit_lines) {
 894                 $line =~ s/^    //;
 895         }
 896         $co{'comment'} = \@commit_lines;
 897
 898         my $age = time - $co{'committer_epoch'};
 899         $co{'age'} = $age;
 900         $co{'age_string'} = age_string($age);
 901         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 902         if ($age > 60*60*24*7*2) {
 903                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 904                 $co{'age_string_age'} = $co{'age_string'};
 905         } else {
 906                 $co{'age_string_date'} = $co{'age_string'};
 907                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 908         }
 909         return %co;
 910 }
 911
 912 # parse ref from ref_file, given by ref_id, with given type
 913 sub parse_ref {
 914         my $ref_file = shift;
 915         my $ref_id = shift;
 916         my $type = shift || git_get_type($ref_id);
 917         my %ref_item;
 918
 919         $ref_item{'type'} = $type;
 920         $ref_item{'id'} = $ref_id;
 921         $ref_item{'epoch'} = 0;
 922         $ref_item{'age'} = "unknown";
 923         if ($type eq "tag") {
 924                 my %tag = parse_tag($ref_id);
 925                 $ref_item{'comment'} = $tag{'comment'};
 926                 if ($tag{'type'} eq "commit") {
 927                         my %co = parse_commit($tag{'object'});
 928                         $ref_item{'epoch'} = $co{'committer_epoch'};
 929                         $ref_item{'age'} = $co{'age_string'};
 930                 } elsif (defined($tag{'epoch'})) {
 931                         my $age = time - $tag{'epoch'};
 932                         $ref_item{'epoch'} = $tag{'epoch'};
 933                         $ref_item{'age'} = age_string($age);
 934                 }
 935                 $ref_item{'reftype'} = $tag{'type'};
 936                 $ref_item{'name'} = $tag{'name'};
 937                 $ref_item{'refid'} = $tag{'object'};
 938         } elsif ($type eq "commit"){
 939                 my %co = parse_commit($ref_id);
 940                 $ref_item{'reftype'} = "commit";
 941                 $ref_item{'name'} = $ref_file;
 942                 $ref_item{'title'} = $co{'title'};
 943                 $ref_item{'refid'} = $ref_id;
 944                 $ref_item{'epoch'} = $co{'committer_epoch'};
 945                 $ref_item{'age'} = $co{'age_string'};
 946         } else {
 947                 $ref_item{'reftype'} = $type;
 948                 $ref_item{'name'} = $ref_file;
 949                 $ref_item{'refid'} = $ref_id;
 950         }
 951
 952         return %ref_item;
 953 }
 954
 955 # parse line of git-diff-tree "raw" output
 956 sub parse_difftree_raw_line {
 957         my $line = shift;
 958         my %res;
 959
 960         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
 961         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
 962         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
 963                 $res{'from_mode'} = $1;
 964                 $res{'to_mode'} = $2;
 965                 $res{'from_id'} = $3;
 966                 $res{'to_id'} = $4;
 967                 $res{'status'} = $5;
 968                 $res{'similarity'} = $6;
 969                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
 970                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
 971                 } else {
 972                         $res{'file'} = unquote($7);
 973                 }
 974         }
 975         # 'c512b523472485aef4fff9e57b229d9d243c967f'
 976         #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
 977         #       $res{'commit'} = $1;
 978         #}
 979
 980         return wantarray ? %res : \%res;
 981 }
 982
 983 ## ......................................................................
 984 ## parse to array of hashes functions
 985
 986 sub git_get_refs_list {
 987         my $ref_dir = shift;
 988         my @reflist;
 989
 990         my @refs;
 991         my $pfxlen = length("$projectroot/$project/$ref_dir");
 992         File::Find::find(sub {
 993                 return if (/^\./);
 994                 if (-f $_) {
 995                         push @refs, substr($File::Find::name, $pfxlen + 1);
 996                 }
 997         }, "$projectroot/$project/$ref_dir");
 998
 999         foreach my $ref_file (@refs) {
1000                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
1001                 my $type = git_get_type($ref_id) || next;
1002                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1003
1004                 push @reflist, \%ref_item;
1005         }
1006         # sort refs by age
1007         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1008         return \@reflist;
1009 }
1010
1011 ## ----------------------------------------------------------------------
1012 ## filesystem-related functions
1013
1014 sub get_file_owner {
1015         my $path = shift;
1016
1017         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1018         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1019         if (!defined $gcos) {
1020                 return undef;
1021         }
1022         my $owner = $gcos;
1023         $owner =~ s/[,;].*$//;
1024         return decode("utf8", $owner, Encode::FB_DEFAULT);
1025 }
1026
1027 ## ......................................................................
1028 ## mimetype related functions
1029
1030 sub mimetype_guess_file {
1031         my $filename = shift;
1032         my $mimemap = shift;
1033         -r $mimemap or return undef;
1034
1035         my %mimemap;
1036         open(MIME, $mimemap) or return undef;
1037         while (<MIME>) {
1038                 next if m/^#/; # skip comments
1039                 my ($mime, $exts) = split(/\t+/);
1040                 if (defined $exts) {
1041                         my @exts = split(/\s+/, $exts);
1042                         foreach my $ext (@exts) {
1043                                 $mimemap{$ext} = $mime;
1044                         }
1045                 }
1046         }
1047         close(MIME);
1048
1049         $filename =~ /\.(.*?)$/;
1050         return $mimemap{$1};
1051 }
1052
1053 sub mimetype_guess {
1054         my $filename = shift;
1055         my $mime;
1056         $filename =~ /\./ or return undef;
1057
1058         if ($mimetypes_file) {
1059                 my $file = $mimetypes_file;
1060                 if ($file !~ m!^/!) { # if it is relative path
1061                         # it is relative to project
1062                         $file = "$projectroot/$project/$file";
1063                 }
1064                 $mime = mimetype_guess_file($filename, $file);
1065         }
1066         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1067         return $mime;
1068 }
1069
1070 sub blob_mimetype {
1071         my $fd = shift;
1072         my $filename = shift;
1073
1074         if ($filename) {
1075                 my $mime = mimetype_guess($filename);
1076                 $mime and return $mime;
1077         }
1078
1079         # just in case
1080         return $default_blob_plain_mimetype unless $fd;
1081
1082         if (-T $fd) {
1083                 return 'text/plain' .
1084                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1085         } elsif (! $filename) {
1086                 return 'application/octet-stream';
1087         } elsif ($filename =~ m/\.png$/i) {
1088                 return 'image/png';
1089         } elsif ($filename =~ m/\.gif$/i) {
1090                 return 'image/gif';
1091         } elsif ($filename =~ m/\.jpe?g$/i) {
1092                 return 'image/jpeg';
1093         } else {
1094                 return 'application/octet-stream';
1095         }
1096 }
1097
1098 ## ======================================================================
1099 ## functions printing HTML: header, footer, error page
1100
1101 sub git_header_html {
1102         my $status = shift || "200 OK";
1103         my $expires = shift;
1104
1105         my $title = "$site_name git";
1106         if (defined $project) {
1107                 $title .= " - $project";
1108                 if (defined $action) {
1109                         $title .= "/$action";
1110                         if (defined $file_name) {
1111                                 $title .= " - $file_name";
1112                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1113                                         $title .= "/";
1114                                 }
1115                         }
1116                 }
1117         }
1118         my $content_type;
1119         # require explicit support from the UA if we are to send the page as
1120         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1121         # we have to do this because MSIE sometimes globs '*/*', pretending to
1122         # support xhtml+xml but choking when it gets what it asked for.
1123         if (defined $cgi->http('HTTP_ACCEPT') &&
1124             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1125             $cgi->Accept('application/xhtml+xml') != 0) {
1126                 $content_type = 'application/xhtml+xml';
1127         } else {
1128                 $content_type = 'text/html';
1129         }
1130         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1131                            -status=> $status, -expires => $expires);
1132         print <<EOF;
1133 <?xml version="1.0" encoding="utf-8"?>
1134 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1135 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1136 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1137 <!-- git core binaries version $git_version -->
1138 <head>
1139 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1140 <meta name="generator" content="gitweb/$version git/$git_version"/>
1141 <meta name="robots" content="index, nofollow"/>
1142 <title>$title</title>
1143 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1144 EOF
1145         if (defined $project) {
1146                 printf('<link rel="alternate" title="%s log" '.
1147                        'href="%s" type="application/rss+xml"/>'."\n",
1148                        esc_param($project), href(action=>"rss"));
1149         }
1150
1151         print "</head>\n" .
1152               "<body>\n" .
1153               "<div class=\"page_header\">\n" .
1154               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1155               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1156               "</a>\n";
1157         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1158         if (defined $project) {
1159                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1160                 if (defined $action) {
1161                         print " / $action";
1162                 }
1163                 print "\n";
1164                 if (!defined $searchtext) {
1165                         $searchtext = "";
1166                 }
1167                 my $search_hash;
1168                 if (defined $hash_base) {
1169                         $search_hash = $hash_base;
1170                 } elsif (defined $hash) {
1171                         $search_hash = $hash;
1172                 } else {
1173                         $search_hash = "HEAD";
1174                 }
1175                 $cgi->param("a", "search");
1176                 $cgi->param("h", $search_hash);
1177                 print $cgi->startform(-method => "get", -action => $my_uri) .
1178                       "<div class=\"search\">\n" .
1179                       $cgi->hidden(-name => "p") . "\n" .
1180                       $cgi->hidden(-name => "a") . "\n" .
1181                       $cgi->hidden(-name => "h") . "\n" .
1182                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1183                       "</div>" .
1184                       $cgi->end_form() . "\n";
1185         }
1186         print "</div>\n";
1187 }
1188
1189 sub git_footer_html {
1190         print "<div class=\"page_footer\">\n";
1191         if (defined $project) {
1192                 my $descr = git_get_project_description($project);
1193                 if (defined $descr) {
1194                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1195                 }
1196                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1197         } else {
1198                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1199         }
1200         print "</div>\n" .
1201               "</body>\n" .
1202               "</html>";
1203 }
1204
1205 sub die_error {
1206         my $status = shift || "403 Forbidden";
1207         my $error = shift || "Malformed query, file missing or permission denied";
1208
1209         git_header_html($status);
1210         print <<EOF;
1211 <div class="page_body">
1212 <br /><br />
1213 $status - $error
1214 <br />
1215 </div>
1216 EOF
1217         git_footer_html();
1218         exit;
1219 }
1220
1221 ## ----------------------------------------------------------------------
1222 ## functions printing or outputting HTML: navigation
1223
1224 sub git_print_page_nav {
1225         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1226         $extra = '' if !defined $extra; # pager or formats
1227
1228         my @navs = qw(summary shortlog log commit commitdiff tree);
1229         if ($suppress) {
1230                 @navs = grep { $_ ne $suppress } @navs;
1231         }
1232
1233         my %arg = map { $_ => {action=>$_} } @navs;
1234         if (defined $head) {
1235                 for (qw(commit commitdiff)) {
1236                         $arg{$_}{hash} = $head;
1237                 }
1238                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1239                         for (qw(shortlog log)) {
1240                                 $arg{$_}{hash} = $head;
1241                         }
1242                 }
1243         }
1244         $arg{tree}{hash} = $treehead if defined $treehead;
1245         $arg{tree}{hash_base} = $treebase if defined $treebase;
1246
1247         print "<div class=\"page_nav\">\n" .
1248                 (join " | ",
1249                  map { $_ eq $current ?
1250                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1251                  } @navs);
1252         print "<br/>\n$extra<br/>\n" .
1253               "</div>\n";
1254 }
1255
1256 sub format_paging_nav {
1257         my ($action, $hash, $head, $page, $nrevs) = @_;
1258         my $paging_nav;
1259
1260
1261         if ($hash ne $head || $page) {
1262                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1263         } else {
1264                 $paging_nav .= "HEAD";
1265         }
1266
1267         if ($page > 0) {
1268                 $paging_nav .= " &sdot; " .
1269                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1270                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1271         } else {
1272                 $paging_nav .= " &sdot; prev";
1273         }
1274
1275         if ($nrevs >= (100 * ($page+1)-1)) {
1276                 $paging_nav .= " &sdot; " .
1277                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1278                                  -accesskey => "n", -title => "Alt-n"}, "next");
1279         } else {
1280                 $paging_nav .= " &sdot; next";
1281         }
1282
1283         return $paging_nav;
1284 }
1285
1286 ## ......................................................................
1287 ## functions printing or outputting HTML: div
1288
1289 sub git_print_header_div {
1290         my ($action, $title, $hash, $hash_base) = @_;
1291         my %args = ();
1292
1293         $args{action} = $action;
1294         $args{hash} = $hash if $hash;
1295         $args{hash_base} = $hash_base if $hash_base;
1296
1297         print "<div class=\"header\">\n" .
1298               $cgi->a({-href => href(%args), -class => "title"},
1299               $title ? $title : $action) .
1300               "\n</div>\n";
1301 }
1302
1303 sub git_print_page_path {
1304         my $name = shift;
1305         my $type = shift;
1306         my $hb = shift;
1307
1308         if (!defined $name) {
1309                 print "<div class=\"page_path\">/</div>\n";
1310         } elsif (defined $type && $type eq 'blob') {
1311                 print "<div class=\"page_path\">";
1312                 if (defined $hb) {
1313                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1314                                                      hash_base=>$hb)},
1315                                       esc_html($name));
1316                 } else {
1317                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
1318                                       esc_html($name));
1319                 }
1320                 print "<br/></div>\n";
1321         } else {
1322                 print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
1323         }
1324 }
1325
1326 sub git_print_log {
1327         my $log = shift;
1328
1329         # remove leading empty lines
1330         while (defined $log->[0] && $log->[0] eq "") {
1331                 shift @$log;
1332         }
1333
1334         # print log
1335         my $signoff = 0;
1336         my $empty = 0;
1337         foreach my $line (@$log) {
1338                 # print only one empty line
1339                 # do not print empty line after signoff
1340                 if ($line eq "") {
1341                         next if ($empty || $signoff);
1342                         $empty = 1;
1343                 } else {
1344                         $empty = 0;
1345                 }
1346                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1347                         $signoff = 1;
1348                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1349                 } else {
1350                         $signoff = 0;
1351                         print format_log_line_html($line) . "<br/>\n";
1352                 }
1353         }
1354 }
1355
1356 sub git_print_simplified_log {
1357         my $log = shift;
1358         my $remove_title = shift;
1359
1360         shift @$log if $remove_title;
1361         # remove leading empty lines
1362         while (defined $log->[0] && $log->[0] eq "") {
1363                 shift @$log;
1364         }
1365
1366         # simplify and print log
1367         my $empty = 0;
1368         foreach my $line (@$log) {
1369                 # remove signoff lines
1370                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1371                         next;
1372                 }
1373                 # print only one empty line
1374                 if ($line eq "") {
1375                         next if $empty;
1376                         $empty = 1;
1377                 } else {
1378                         $empty = 0;
1379                 }
1380                 print format_log_line_html($line) . "<br/>\n";
1381         }
1382         # end with single empty line
1383         print "<br/>\n" unless $empty;
1384 }
1385
1386 ## ......................................................................
1387 ## functions printing large fragments of HTML
1388
1389 sub git_difftree_body {
1390         my ($difftree, $hash, $parent) = @_;
1391
1392         print "<div class=\"list_head\">\n";
1393         if ($#{$difftree} > 10) {
1394                 print(($#{$difftree} + 1) . " files changed:\n");
1395         }
1396         print "</div>\n";
1397
1398         print "<table class=\"diff_tree\">\n";
1399         my $alternate = 0;
1400         foreach my $line (@{$difftree}) {
1401                 my %diff = parse_difftree_raw_line($line);
1402
1403                 if ($alternate) {
1404                         print "<tr class=\"dark\">\n";
1405                 } else {
1406                         print "<tr class=\"light\">\n";
1407                 }
1408                 $alternate ^= 1;
1409
1410                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1411                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1412                 if ($diff{'to_mode'} ne ('0' x 6)) {
1413                         $to_mode_oct = oct $diff{'to_mode'};
1414                         if (S_ISREG($to_mode_oct)) { # only for regular file
1415                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1416                         }
1417                         $to_file_type = file_type($diff{'to_mode'});
1418                 }
1419                 if ($diff{'from_mode'} ne ('0' x 6)) {
1420                         $from_mode_oct = oct $diff{'from_mode'};
1421                         if (S_ISREG($to_mode_oct)) { # only for regular file
1422                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1423                         }
1424                         $from_file_type = file_type($diff{'from_mode'});
1425                 }
1426
1427                 if ($diff{'status'} eq "A") { # created
1428                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1429                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1430                         $mode_chng   .= "]</span>";
1431                         print "<td>" .
1432                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1433                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1434                                       -class => "list"}, esc_html($diff{'file'})) .
1435                               "</td>\n" .
1436                               "<td>$mode_chng</td>\n" .
1437                               "<td class=\"link\">" .
1438                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1439                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1440                                       "blob") .
1441                               "</td>\n";
1442
1443                 } elsif ($diff{'status'} eq "D") { # deleted
1444                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1445                         print "<td>" .
1446                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1447                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1448                                        -class => "list"}, esc_html($diff{'file'})) .
1449                               "</td>\n" .
1450                               "<td>$mode_chng</td>\n" .
1451                               "<td class=\"link\">" .
1452                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1453                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1454                                       "blob") .
1455                               " | " .
1456                               $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1457                                                      file_name=>$diff{'file'})},\
1458                                       "history") .
1459                               "</td>\n";
1460
1461                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1462                         my $mode_chnge = "";
1463                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1464                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1465                                 if ($from_file_type != $to_file_type) {
1466                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1467                                 }
1468                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1469                                         if ($from_mode_str && $to_mode_str) {
1470                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1471                                         } elsif ($to_mode_str) {
1472                                                 $mode_chnge .= " mode: $to_mode_str";
1473                                         }
1474                                 }
1475                                 $mode_chnge .= "]</span>\n";
1476                         }
1477                         print "<td>";
1478                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1479                                 print $cgi->a({-href => href(action=>"blobdiff", hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1480                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1481                                               -class => "list"}, esc_html($diff{'file'}));
1482                         } else { # only mode changed
1483                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1484                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1485                                               -class => "list"}, esc_html($diff{'file'}));
1486                         }
1487                         print "</td>\n" .
1488                               "<td>$mode_chnge</td>\n" .
1489                               "<td class=\"link\">" .
1490                                 $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1491                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1492                                         "blob");
1493                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1494                                 print " | " .
1495                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1496                                                                hash_base=>$hash, file_name=>$diff{'file'})},
1497                                                 "diff");
1498                         }
1499                         print " | " .
1500                                 $cgi->a({-href => href(action=>"history",
1501                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1502                                         "history");
1503                         print "</td>\n";
1504
1505                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1506                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1507                         my $nstatus = $status_name{$diff{'status'}};
1508                         my $mode_chng = "";
1509                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1510                                 # mode also for directories, so we cannot use $to_mode_str
1511                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1512                         }
1513                         print "<td>" .
1514                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1515                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1516                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1517                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1518                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1519                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1520                                       -class => "list"}, esc_html($diff{'from_file'})) .
1521                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1522                               "<td class=\"link\">" .
1523                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1524                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1525                                       "blob");
1526                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1527                                 print " | " .
1528                                         $cgi->a({-href => href(action=>"blobdiff", hash_base=>$hash,
1529                                                                hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1530                                                                file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1531                                                 "diff");
1532                         }
1533                         print "</td>\n";
1534
1535                 } # we should not encounter Unmerged (U) or Unknown (X) status
1536                 print "</tr>\n";
1537         }
1538         print "</table>\n";
1539 }
1540
1541 sub git_patchset_body {
1542         my ($patchset, $difftree, $hash, $hash_parent) = @_;
1543
1544         my $patch_idx = 0;
1545         my $in_header = 0;
1546         my $patch_found = 0;
1547         my %diffinfo;
1548
1549         print "<div class=\"patchset\">\n";
1550
1551         LINE: foreach my $patch_line (@$patchset) {
1552
1553                 if ($patch_line =~ m/^diff /) { # "git diff" header
1554                         # beginning of patch (in patchset)
1555                         if ($patch_found) {
1556                                 # close previous patch
1557                                 print "</div>\n"; # class="patch"
1558                         } else {
1559                                 # first patch in patchset
1560                                 $patch_found = 1;
1561                         }
1562                         print "<div class=\"patch\">\n";
1563
1564                         %diffinfo = parse_difftree_raw_line($difftree->[$patch_idx++]);
1565
1566                         # for now, no extended header, hence we skip empty patches
1567                         # companion to  next LINE if $in_header;
1568                         if ($diffinfo{'from_id'} eq $diffinfo{'to_id'}) { # no change
1569                                 $in_header = 1;
1570                                 next LINE;
1571                         }
1572
1573                         if ($diffinfo{'status'} eq "A") { # added
1574                                 print "<div class=\"diff_info\">" . file_type($diffinfo{'to_mode'}) . ":" .
1575                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1576                                                              hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'file'})},
1577                                               $diffinfo{'to_id'}) . "(new)" .
1578                                       "</div>\n"; # class="diff_info"
1579
1580                         } elsif ($diffinfo{'status'} eq "D") { # deleted
1581                                 print "<div class=\"diff_info\">" . file_type($diffinfo{'from_mode'}) . ":" .
1582                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1583                                                              hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'file'})},
1584                                               $diffinfo{'from_id'}) . "(deleted)" .
1585                                       "</div>\n"; # class="diff_info"
1586
1587                         } elsif ($diffinfo{'status'} eq "R" || # renamed
1588                                  $diffinfo{'status'} eq "C") { # copied
1589                                 print "<div class=\"diff_info\">" .
1590                                       file_type($diffinfo{'from_mode'}) . ":" .
1591                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1592                                                              hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'from_file'})},
1593                                               $diffinfo{'from_id'}) .
1594                                       " -> " .
1595                                       file_type($diffinfo{'to_mode'}) . ":" .
1596                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1597                                                              hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'to_file'})},
1598                                               $diffinfo{'to_id'});
1599                                 print "</div>\n"; # class="diff_info"
1600
1601                         } else { # modified, mode changed, ...
1602                                 print "<div class=\"diff_info\">" .
1603                                       file_type($diffinfo{'from_mode'}) . ":" .
1604                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1605                                                              hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'file'})},
1606                                               $diffinfo{'from_id'}) .
1607                                       " -> " .
1608                                       file_type($diffinfo{'to_mode'}) . ":" .
1609                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1610                                                              hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'file'})},
1611                                               $diffinfo{'to_id'});
1612                                 print "</div>\n"; # class="diff_info"
1613                         }
1614
1615                         #print "<div class=\"diff extended_header\">\n";
1616                         $in_header = 1;
1617                         next LINE;
1618                 } # start of patch in patchset
1619
1620
1621                 if ($in_header && $patch_line =~ m/^---/) {
1622                         #print "</div>\n"
1623                         $in_header = 0;
1624                 }
1625                 next LINE if $in_header;
1626
1627                 print format_diff_line($patch_line);
1628         }
1629         print "</div>\n" if $patch_found; # class="patch"
1630
1631         print "</div>\n"; # class="patchset"
1632 }
1633
1634 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1635
1636 sub git_shortlog_body {
1637         # uses global variable $project
1638         my ($revlist, $from, $to, $refs, $extra) = @_;
1639
1640         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1641         my $have_snapshot = (defined $ctype && defined $suffix);
1642
1643         $from = 0 unless defined $from;
1644         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1645
1646         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1647         my $alternate = 0;
1648         for (my $i = $from; $i <= $to; $i++) {
1649                 my $commit = $revlist->[$i];
1650                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1651                 my $ref = format_ref_marker($refs, $commit);
1652                 my %co = parse_commit($commit);
1653                 if ($alternate) {
1654                         print "<tr class=\"dark\">\n";
1655                 } else {
1656                         print "<tr class=\"light\">\n";
1657                 }
1658                 $alternate ^= 1;
1659                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1660                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1661                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1662                       "<td>";
1663                 print format_subject_html($co{'title'}, $co{'title_short'},
1664                                           href(action=>"commit", hash=>$commit), $ref);
1665                 print "</td>\n" .
1666                       "<td class=\"link\">" .
1667                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1668                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1669                 if ($have_snapshot) {
1670                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1671                 }
1672                 print "</td>\n" .
1673                       "</tr>\n";
1674         }
1675         if (defined $extra) {
1676                 print "<tr>\n" .
1677                       "<td colspan=\"4\">$extra</td>\n" .
1678                       "</tr>\n";
1679         }
1680         print "</table>\n";
1681 }
1682
1683 sub git_history_body {
1684         # Warning: assumes constant type (blob or tree) during history
1685         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1686
1687         print "<table class=\"history\" cellspacing=\"0\">\n";
1688         my $alternate = 0;
1689         while (my $line = <$fd>) {
1690                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1691                         next;
1692                 }
1693
1694                 my $commit = $1;
1695                 my %co = parse_commit($commit);
1696                 if (!%co) {
1697                         next;
1698                 }
1699
1700                 my $ref = format_ref_marker($refs, $commit);
1701
1702                 if ($alternate) {
1703                         print "<tr class=\"dark\">\n";
1704                 } else {
1705                         print "<tr class=\"light\">\n";
1706                 }
1707                 $alternate ^= 1;
1708                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1709                       # shortlog uses      chop_str($co{'author_name'}, 10)
1710                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1711                       "<td>";
1712                 # originally git_history used chop_str($co{'title'}, 50)
1713                 print format_subject_html($co{'title'}, $co{'title_short'},
1714                                           href(action=>"commit", hash=>$commit), $ref);
1715                 print "</td>\n" .
1716                       "<td class=\"link\">" .
1717                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1718                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1719                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1720
1721                 if ($ftype eq 'blob') {
1722                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1723                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1724                         if (defined $blob_current && defined $blob_parent &&
1725                                         $blob_current ne $blob_parent) {
1726                                 print " | " .
1727                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent,
1728                                                                hash_base=>$commit, file_name=>$file_name)},
1729                                                 "diff to current");
1730                         }
1731                 }
1732                 print "</td>\n" .
1733                       "</tr>\n";
1734         }
1735         if (defined $extra) {
1736                 print "<tr>\n" .
1737                       "<td colspan=\"4\">$extra</td>\n" .
1738                       "</tr>\n";
1739         }
1740         print "</table>\n";
1741 }
1742
1743 sub git_tags_body {
1744         # uses global variable $project
1745         my ($taglist, $from, $to, $extra) = @_;
1746         $from = 0 unless defined $from;
1747         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1748
1749         print "<table class=\"tags\" cellspacing=\"0\">\n";
1750         my $alternate = 0;
1751         for (my $i = $from; $i <= $to; $i++) {
1752                 my $entry = $taglist->[$i];
1753                 my %tag = %$entry;
1754                 my $comment_lines = $tag{'comment'};
1755                 my $comment = shift @$comment_lines;
1756                 my $comment_short;
1757                 if (defined $comment) {
1758                         $comment_short = chop_str($comment, 30, 5);
1759                 }
1760                 if ($alternate) {
1761                         print "<tr class=\"dark\">\n";
1762                 } else {
1763                         print "<tr class=\"light\">\n";
1764                 }
1765                 $alternate ^= 1;
1766                 print "<td><i>$tag{'age'}</i></td>\n" .
1767                       "<td>" .
1768                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1769                                -class => "list name"}, esc_html($tag{'name'})) .
1770                       "</td>\n" .
1771                       "<td>";
1772                 if (defined $comment) {
1773                         print format_subject_html($comment, $comment_short,
1774                                                   href(action=>"tag", hash=>$tag{'id'}));
1775                 }
1776                 print "</td>\n" .
1777                       "<td class=\"selflink\">";
1778                 if ($tag{'type'} eq "tag") {
1779                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1780                 } else {
1781                         print "&nbsp;";
1782                 }
1783                 print "</td>\n" .
1784                       "<td class=\"link\">" . " | " .
1785                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1786                 if ($tag{'reftype'} eq "commit") {
1787                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1788                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1789                 } elsif ($tag{'reftype'} eq "blob") {
1790                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1791                 }
1792                 print "</td>\n" .
1793                       "</tr>";
1794         }
1795         if (defined $extra) {
1796                 print "<tr>\n" .
1797                       "<td colspan=\"5\">$extra</td>\n" .
1798                       "</tr>\n";
1799         }
1800         print "</table>\n";
1801 }
1802
1803 sub git_heads_body {
1804         # uses global variable $project
1805         my ($taglist, $head, $from, $to, $extra) = @_;
1806         $from = 0 unless defined $from;
1807         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1808
1809         print "<table class=\"heads\" cellspacing=\"0\">\n";
1810         my $alternate = 0;
1811         for (my $i = $from; $i <= $to; $i++) {
1812                 my $entry = $taglist->[$i];
1813                 my %tag = %$entry;
1814                 my $curr = $tag{'id'} eq $head;
1815                 if ($alternate) {
1816                         print "<tr class=\"dark\">\n";
1817                 } else {
1818                         print "<tr class=\"light\">\n";
1819                 }
1820                 $alternate ^= 1;
1821                 print "<td><i>$tag{'age'}</i></td>\n" .
1822                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1823                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1824                                -class => "list name"},esc_html($tag{'name'})) .
1825                       "</td>\n" .
1826                       "<td class=\"link\">" .
1827                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1828                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1829                       "</td>\n" .
1830                       "</tr>";
1831         }
1832         if (defined $extra) {
1833                 print "<tr>\n" .
1834                       "<td colspan=\"3\">$extra</td>\n" .
1835                       "</tr>\n";
1836         }
1837         print "</table>\n";
1838 }
1839
1840 ## ----------------------------------------------------------------------
1841 ## functions printing large fragments, format as one of arguments
1842
1843 sub git_diff_print {
1844         my $from = shift;
1845         my $from_name = shift;
1846         my $to = shift;
1847         my $to_name = shift;
1848         my $format = shift || "html";
1849
1850         my $from_tmp = "/dev/null";
1851         my $to_tmp = "/dev/null";
1852         my $pid = $$;
1853
1854         # create tmp from-file
1855         if (defined $from) {
1856                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1857                 open my $fd2, "> $from_tmp";
1858                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1859                 my @file = <$fd>;
1860                 print $fd2 @file;
1861                 close $fd2;
1862                 close $fd;
1863         }
1864
1865         # create tmp to-file
1866         if (defined $to) {
1867                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1868                 open my $fd2, "> $to_tmp";
1869                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1870                 my @file = <$fd>;
1871                 print $fd2 @file;
1872                 close $fd2;
1873                 close $fd;
1874         }
1875
1876         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1877         if ($format eq "plain") {
1878                 undef $/;
1879                 print <$fd>;
1880                 $/ = "\n";
1881         } else {
1882                 while (my $line = <$fd>) {
1883                         chomp $line;
1884                         my $char = substr($line, 0, 1);
1885                         my $diff_class = "";
1886                         if ($char eq '+') {
1887                                 $diff_class = " add";
1888                         } elsif ($char eq "-") {
1889                                 $diff_class = " rem";
1890                         } elsif ($char eq "@") {
1891                                 $diff_class = " chunk_header";
1892                         } elsif ($char eq "\\") {
1893                                 # skip errors
1894                                 next;
1895                         }
1896                         $line = untabify($line);
1897                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1898                 }
1899         }
1900         close $fd;
1901
1902         if (defined $from) {
1903                 unlink($from_tmp);
1904         }
1905         if (defined $to) {
1906                 unlink($to_tmp);
1907         }
1908 }
1909
1910
1911 ## ======================================================================
1912 ## ======================================================================
1913 ## actions
1914
1915 sub git_project_list {
1916         my $order = $cgi->param('o');
1917         if (defined $order && $order !~ m/project|descr|owner|age/) {
1918                 die_error(undef, "Unknown order parameter");
1919         }
1920
1921         my @list = git_get_projects_list();
1922         my @projects;
1923         if (!@list) {
1924                 die_error(undef, "No projects found");
1925         }
1926         foreach my $pr (@list) {
1927                 my $head = git_get_head_hash($pr->{'path'});
1928                 if (!defined $head) {
1929                         next;
1930                 }
1931                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1932                 my %co = parse_commit($head);
1933                 if (!%co) {
1934                         next;
1935                 }
1936                 $pr->{'commit'} = \%co;
1937                 if (!defined $pr->{'descr'}) {
1938                         my $descr = git_get_project_description($pr->{'path'}) || "";
1939                         $pr->{'descr'} = chop_str($descr, 25, 5);
1940                 }
1941                 if (!defined $pr->{'owner'}) {
1942                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1943                 }
1944                 push @projects, $pr;
1945         }
1946
1947         git_header_html();
1948         if (-f $home_text) {
1949                 print "<div class=\"index_include\">\n";
1950                 open (my $fd, $home_text);
1951                 print <$fd>;
1952                 close $fd;
1953                 print "</div>\n";
1954         }
1955         print "<table class=\"project_list\">\n" .
1956               "<tr>\n";
1957         $order ||= "project";
1958         if ($order eq "project") {
1959                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1960                 print "<th>Project</th>\n";
1961         } else {
1962                 print "<th>" .
1963                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1964                                -class => "header"}, "Project") .
1965                       "</th>\n";
1966         }
1967         if ($order eq "descr") {
1968                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1969                 print "<th>Description</th>\n";
1970         } else {
1971                 print "<th>" .
1972                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1973                                -class => "header"}, "Description") .
1974                       "</th>\n";
1975         }
1976         if ($order eq "owner") {
1977                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1978                 print "<th>Owner</th>\n";
1979         } else {
1980                 print "<th>" .
1981                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1982                                -class => "header"}, "Owner") .
1983                       "</th>\n";
1984         }
1985         if ($order eq "age") {
1986                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1987                 print "<th>Last Change</th>\n";
1988         } else {
1989                 print "<th>" .
1990                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1991                                -class => "header"}, "Last Change") .
1992                       "</th>\n";
1993         }
1994         print "<th></th>\n" .
1995               "</tr>\n";
1996         my $alternate = 0;
1997         foreach my $pr (@projects) {
1998                 if ($alternate) {
1999                         print "<tr class=\"dark\">\n";
2000                 } else {
2001                         print "<tr class=\"light\">\n";
2002                 }
2003                 $alternate ^= 1;
2004                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2005                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2006                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2007                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2008                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2009                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2010                       "<td class=\"link\">" .
2011                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2012                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2013                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2014                       "</td>\n" .
2015                       "</tr>\n";
2016         }
2017         print "</table>\n";
2018         git_footer_html();
2019 }
2020
2021 sub git_summary {
2022         my $descr = git_get_project_description($project) || "none";
2023         my $head = git_get_head_hash($project);
2024         my %co = parse_commit($head);
2025         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2026
2027         my $owner = git_get_project_owner($project);
2028
2029         my $refs = git_get_references();
2030         git_header_html();
2031         git_print_page_nav('summary','', $head);
2032
2033         print "<div class=\"title\">&nbsp;</div>\n";
2034         print "<table cellspacing=\"0\">\n" .
2035               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2036               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2037               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2038         # use per project git URL list in $projectroot/$project/cloneurl
2039         # or make project git URL from git base URL and project name
2040         my $url_tag = "URL";
2041         my @url_list = git_get_project_url_list($project);
2042         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2043         foreach my $git_url (@url_list) {
2044                 next unless $git_url;
2045                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2046                 $url_tag = "";
2047         }
2048         print "</table>\n";
2049
2050         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
2051                 or die_error(undef, "Open git-rev-list failed");
2052         my @revlist = map { chomp; $_ } <$fd>;
2053         close $fd;
2054         git_print_header_div('shortlog');
2055         git_shortlog_body(\@revlist, 0, 15, $refs,
2056                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2057
2058         my $taglist = git_get_refs_list("refs/tags");
2059         if (defined @$taglist) {
2060                 git_print_header_div('tags');
2061                 git_tags_body($taglist, 0, 15,
2062                               $cgi->a({-href => href(action=>"tags")}, "..."));
2063         }
2064
2065         my $headlist = git_get_refs_list("refs/heads");
2066         if (defined @$headlist) {
2067                 git_print_header_div('heads');
2068                 git_heads_body($headlist, $head, 0, 15,
2069                                $cgi->a({-href => href(action=>"heads")}, "..."));
2070         }
2071
2072         git_footer_html();
2073 }
2074
2075 sub git_tag {
2076         my $head = git_get_head_hash($project);
2077         git_header_html();
2078         git_print_page_nav('','', $head,undef,$head);
2079         my %tag = parse_tag($hash);
2080         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2081         print "<div class=\"title_text\">\n" .
2082               "<table cellspacing=\"0\">\n" .
2083               "<tr>\n" .
2084               "<td>object</td>\n" .
2085               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2086                                $tag{'object'}) . "</td>\n" .
2087               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2088                                               $tag{'type'}) . "</td>\n" .
2089               "</tr>\n";
2090         if (defined($tag{'author'})) {
2091                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2092                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2093                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2094                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2095                         "</td></tr>\n";
2096         }
2097         print "</table>\n\n" .
2098               "</div>\n";
2099         print "<div class=\"page_body\">";
2100         my $comment = $tag{'comment'};
2101         foreach my $line (@$comment) {
2102                 print esc_html($line) . "<br/>\n";
2103         }
2104         print "</div>\n";
2105         git_footer_html();
2106 }
2107
2108 sub git_blame2 {
2109         my $fd;
2110         my $ftype;
2111
2112         if (!gitweb_check_feature('blame')) {
2113                 die_error('403 Permission denied', "Permission denied");
2114         }
2115         die_error('404 Not Found', "File name not defined") if (!$file_name);
2116         $hash_base ||= git_get_head_hash($project);
2117         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2118         my %co = parse_commit($hash_base)
2119                 or die_error(undef, "Reading commit failed");
2120         if (!defined $hash) {
2121                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2122                         or die_error(undef, "Error looking up file");
2123         }
2124         $ftype = git_get_type($hash);
2125         if ($ftype !~ "blob") {
2126                 die_error("400 Bad Request", "Object is not a blob");
2127         }
2128         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
2129                 or die_error(undef, "Open git-blame failed");
2130         git_header_html();
2131         my $formats_nav =
2132                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2133                         "blob") .
2134                 " | " .
2135                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2136                         "head");
2137         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2138         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2139         git_print_page_path($file_name, $ftype, $hash_base);
2140         my @rev_color = (qw(light2 dark2));
2141         my $num_colors = scalar(@rev_color);
2142         my $current_color = 0;
2143         my $last_rev;
2144         print <<HTML;
2145 <div class="page_body">
2146 <table class="blame">
2147 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2148 HTML
2149         while (<$fd>) {
2150                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2151                 my $full_rev = $1;
2152                 my $rev = substr($full_rev, 0, 8);
2153                 my $lineno = $2;
2154                 my $data = $3;
2155
2156                 if (!defined $last_rev) {
2157                         $last_rev = $full_rev;
2158                 } elsif ($last_rev ne $full_rev) {
2159                         $last_rev = $full_rev;
2160                         $current_color = ++$current_color % $num_colors;
2161                 }
2162                 print "<tr class=\"$rev_color[$current_color]\">\n";
2163                 print "<td class=\"sha1\">" .
2164                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2165                                 esc_html($rev)) . "</td>\n";
2166                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2167                       esc_html($lineno) . "</a></td>\n";
2168                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2169                 print "</tr>\n";
2170         }
2171         print "</table>\n";
2172         print "</div>";
2173         close $fd
2174                 or print "Reading blob failed\n";
2175         git_footer_html();
2176 }
2177
2178 sub git_blame {
2179         my $fd;
2180
2181         if (!gitweb_check_feature('blame')) {
2182                 die_error('403 Permission denied', "Permission denied");
2183         }
2184         die_error('404 Not Found', "File name not defined") if (!$file_name);
2185         $hash_base ||= git_get_head_hash($project);
2186         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2187         my %co = parse_commit($hash_base)
2188                 or die_error(undef, "Reading commit failed");
2189         if (!defined $hash) {
2190                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2191                         or die_error(undef, "Error lookup file");
2192         }
2193         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2194                 or die_error(undef, "Open git-annotate failed");
2195         git_header_html();
2196         my $formats_nav =
2197                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2198                         "blob") .
2199                 " | " .
2200                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2201                         "head");
2202         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2203         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2204         git_print_page_path($file_name, 'blob', $hash_base);
2205         print "<div class=\"page_body\">\n";
2206         print <<HTML;
2207 <table class="blame">
2208   <tr>
2209     <th>Commit</th>
2210     <th>Age</th>
2211     <th>Author</th>
2212     <th>Line</th>
2213     <th>Data</th>
2214   </tr>
2215 HTML
2216         my @line_class = (qw(light dark));
2217         my $line_class_len = scalar (@line_class);
2218         my $line_class_num = $#line_class;
2219         while (my $line = <$fd>) {
2220                 my $long_rev;
2221                 my $short_rev;
2222                 my $author;
2223                 my $time;
2224                 my $lineno;
2225                 my $data;
2226                 my $age;
2227                 my $age_str;
2228                 my $age_class;
2229
2230                 chomp $line;
2231                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2232
2233                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
2234                         $long_rev = $1;
2235                         $author   = $2;
2236                         $time     = $3;
2237                         $lineno   = $4;
2238                         $data     = $5;
2239                 } else {
2240                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2241                         next;
2242                 }
2243                 $short_rev  = substr ($long_rev, 0, 8);
2244                 $age        = time () - $time;
2245                 $age_str    = age_string ($age);
2246                 $age_str    =~ s/ /&nbsp;/g;
2247                 $age_class  = age_class($age);
2248                 $author     = esc_html ($author);
2249                 $author     =~ s/ /&nbsp;/g;
2250
2251                 $data = untabify($data);
2252                 $data = esc_html ($data);
2253
2254                 print <<HTML;
2255   <tr class="$line_class[$line_class_num]">
2256     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2257     <td class="$age_class">$age_str</td>
2258     <td>$author</td>
2259     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2260     <td class="pre">$data</td>
2261   </tr>
2262 HTML
2263         } # while (my $line = <$fd>)
2264         print "</table>\n\n";
2265         close $fd
2266                 or print "Reading blob failed.\n";
2267         print "</div>";
2268         git_footer_html();
2269 }
2270
2271 sub git_tags {
2272         my $head = git_get_head_hash($project);
2273         git_header_html();
2274         git_print_page_nav('','', $head,undef,$head);
2275         git_print_header_div('summary', $project);
2276
2277         my $taglist = git_get_refs_list("refs/tags");
2278         if (defined @$taglist) {
2279                 git_tags_body($taglist);
2280         }
2281         git_footer_html();
2282 }
2283
2284 sub git_heads {
2285         my $head = git_get_head_hash($project);
2286         git_header_html();
2287         git_print_page_nav('','', $head,undef,$head);
2288         git_print_header_div('summary', $project);
2289
2290         my $taglist = git_get_refs_list("refs/heads");
2291         if (defined @$taglist) {
2292                 git_heads_body($taglist, $head);
2293         }
2294         git_footer_html();
2295 }
2296
2297 sub git_blob_plain {
2298         if (!defined $hash) {
2299                 if (defined $file_name) {
2300                         my $base = $hash_base || git_get_head_hash($project);
2301                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2302                                 or die_error(undef, "Error lookup file");
2303                 } else {
2304                         die_error(undef, "No file name defined");
2305                 }
2306         }
2307         my $type = shift;
2308         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2309                 or die_error(undef, "Couldn't cat $file_name, $hash");
2310
2311         $type ||= blob_mimetype($fd, $file_name);
2312
2313         # save as filename, even when no $file_name is given
2314         my $save_as = "$hash";
2315         if (defined $file_name) {
2316                 $save_as = $file_name;
2317         } elsif ($type =~ m/^text\//) {
2318                 $save_as .= '.txt';
2319         }
2320
2321         print $cgi->header(-type => "$type",
2322                            -content_disposition => "inline; filename=\"$save_as\"");
2323         undef $/;
2324         binmode STDOUT, ':raw';
2325         print <$fd>;
2326         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2327         $/ = "\n";
2328         close $fd;
2329 }
2330
2331 sub git_blob {
2332         if (!defined $hash) {
2333                 if (defined $file_name) {
2334                         my $base = $hash_base || git_get_head_hash($project);
2335                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2336                                 or die_error(undef, "Error lookup file");
2337                 } else {
2338                         die_error(undef, "No file name defined");
2339                 }
2340         }
2341         my $have_blame = gitweb_check_feature('blame');
2342         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2343                 or die_error(undef, "Couldn't cat $file_name, $hash");
2344         my $mimetype = blob_mimetype($fd, $file_name);
2345         if ($mimetype !~ m/^text\//) {
2346                 close $fd;
2347                 return git_blob_plain($mimetype);
2348         }
2349         git_header_html();
2350         my $formats_nav = '';
2351         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2352                 if (defined $file_name) {
2353                         if ($have_blame) {
2354                                 $formats_nav .=
2355                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2356                                                                hash=>$hash, file_name=>$file_name)},
2357                                                 "blame") .
2358                                         " | ";
2359                         }
2360                         $formats_nav .=
2361                                 $cgi->a({-href => href(action=>"blob_plain",
2362                                                        hash=>$hash, file_name=>$file_name)},
2363                                         "plain") .
2364                                 " | " .
2365                                 $cgi->a({-href => href(action=>"blob",
2366                                                        hash_base=>"HEAD", file_name=>$file_name)},
2367                                         "head");
2368                 } else {
2369                         $formats_nav .=
2370                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2371                 }
2372                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2373                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2374         } else {
2375                 print "<div class=\"page_nav\">\n" .
2376                       "<br/><br/></div>\n" .
2377                       "<div class=\"title\">$hash</div>\n";
2378         }
2379         git_print_page_path($file_name, "blob", $hash_base);
2380         print "<div class=\"page_body\">\n";
2381         my $nr;
2382         while (my $line = <$fd>) {
2383                 chomp $line;
2384                 $nr++;
2385                 $line = untabify($line);
2386                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2387                        $nr, $nr, $nr, esc_html($line);
2388         }
2389         close $fd
2390                 or print "Reading blob failed.\n";
2391         print "</div>";
2392         git_footer_html();
2393 }
2394
2395 sub git_tree {
2396         if (!defined $hash) {
2397                 $hash = git_get_head_hash($project);
2398                 if (defined $file_name) {
2399                         my $base = $hash_base || $hash;
2400                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2401                 }
2402                 if (!defined $hash_base) {
2403                         $hash_base = $hash;
2404                 }
2405         }
2406         $/ = "\0";
2407         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2408                 or die_error(undef, "Open git-ls-tree failed");
2409         my @entries = map { chomp; $_ } <$fd>;
2410         close $fd or die_error(undef, "Reading tree failed");
2411         $/ = "\n";
2412
2413         my $refs = git_get_references();
2414         my $ref = format_ref_marker($refs, $hash_base);
2415         git_header_html();
2416         my %base_key = ();
2417         my $base = "";
2418         my $have_blame = gitweb_check_feature('blame');
2419         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2420                 $base_key{hash_base} = $hash_base;
2421                 git_print_page_nav('tree','', $hash_base);
2422                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2423         } else {
2424                 print "<div class=\"page_nav\">\n";
2425                 print "<br/><br/></div>\n";
2426                 print "<div class=\"title\">$hash</div>\n";
2427         }
2428         if (defined $file_name) {
2429                 $base = esc_html("$file_name/");
2430         }
2431         git_print_page_path($file_name, 'tree', $hash_base);
2432         print "<div class=\"page_body\">\n";
2433         print "<table cellspacing=\"0\">\n";
2434         my $alternate = 0;
2435         foreach my $line (@entries) {
2436                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2437                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2438                 my $t_mode = $1;
2439                 my $t_type = $2;
2440                 my $t_hash = $3;
2441                 my $t_name = validate_input($4);
2442                 if ($alternate) {
2443                         print "<tr class=\"dark\">\n";
2444                 } else {
2445                         print "<tr class=\"light\">\n";
2446                 }
2447                 $alternate ^= 1;
2448                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2449                 if ($t_type eq "blob") {
2450                         print "<td class=\"list\">" .
2451                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key),
2452                                       -class => "list"}, esc_html($t_name)) .
2453                               "</td>\n" .
2454                               "<td class=\"link\">" .
2455                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2456                                       "blob");
2457                         if ($have_blame) {
2458                                 print " | " .
2459                                         $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2460                                                 "blame");
2461                         }
2462                         print " | " .
2463                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2464                                                      hash=>$t_hash, file_name=>"$base$t_name")},
2465                                       "history") .
2466                               " | " .
2467                               $cgi->a({-href => href(action=>"blob_plain",
2468                                                      hash=>$t_hash, file_name=>"$base$t_name")},
2469                                       "raw") .
2470                               "</td>\n";
2471                 } elsif ($t_type eq "tree") {
2472                         print "<td class=\"list\">" .
2473                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2474                                       esc_html($t_name)) .
2475                               "</td>\n" .
2476                               "<td class=\"link\">" .
2477                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2478                                       "tree") .
2479                               " | " .
2480                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")},
2481                                       "history") .
2482                               "</td>\n";
2483                 }
2484                 print "</tr>\n";
2485         }
2486         print "</table>\n" .
2487               "</div>";
2488         git_footer_html();
2489 }
2490
2491 sub git_snapshot {
2492
2493         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2494         my $have_snapshot = (defined $ctype && defined $suffix);
2495         if (!$have_snapshot) {
2496                 die_error('403 Permission denied', "Permission denied");
2497         }
2498
2499         if (!defined $hash) {
2500                 $hash = git_get_head_hash($project);
2501         }
2502
2503         my $filename = basename($project) . "-$hash.tar.$suffix";
2504
2505         print $cgi->header(-type => 'application/x-tar',
2506                            -content_encoding => $ctype,
2507                            -content_disposition => "inline; filename=\"$filename\"",
2508                            -status => '200 OK');
2509
2510         open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
2511                 die_error(undef, "Execute git-tar-tree failed.");
2512         binmode STDOUT, ':raw';
2513         print <$fd>;
2514         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2515         close $fd;
2516
2517 }
2518
2519 sub git_log {
2520         my $head = git_get_head_hash($project);
2521         if (!defined $hash) {
2522                 $hash = $head;
2523         }
2524         if (!defined $page) {
2525                 $page = 0;
2526         }
2527         my $refs = git_get_references();
2528
2529         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2530         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2531                 or die_error(undef, "Open git-rev-list failed");
2532         my @revlist = map { chomp; $_ } <$fd>;
2533         close $fd;
2534
2535         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2536
2537         git_header_html();
2538         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2539
2540         if (!@revlist) {
2541                 my %co = parse_commit($hash);
2542
2543                 git_print_header_div('summary', $project);
2544                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2545         }
2546         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2547                 my $commit = $revlist[$i];
2548                 my $ref = format_ref_marker($refs, $commit);
2549                 my %co = parse_commit($commit);
2550                 next if !%co;
2551                 my %ad = parse_date($co{'author_epoch'});
2552                 git_print_header_div('commit',
2553                                "<span class=\"age\">$co{'age_string'}</span>" .
2554                                esc_html($co{'title'}) . $ref,
2555                                $commit);
2556                 print "<div class=\"title_text\">\n" .
2557                       "<div class=\"log_link\">\n" .
2558                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2559                       " | " .
2560                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2561                       "<br/>\n" .
2562                       "</div>\n" .
2563                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2564                       "</div>\n";
2565
2566                 print "<div class=\"log_body\">\n";
2567                 git_print_simplified_log($co{'comment'});
2568                 print "</div>\n";
2569         }
2570         git_footer_html();
2571 }
2572
2573 sub git_commit {
2574         my %co = parse_commit($hash);
2575         if (!%co) {
2576                 die_error(undef, "Unknown commit object");
2577         }
2578         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2579         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2580
2581         my $parent = $co{'parent'};
2582         if (!defined $parent) {
2583                 $parent = "--root";
2584         }
2585         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2586                 or die_error(undef, "Open git-diff-tree failed");
2587         my @difftree = map { chomp; $_ } <$fd>;
2588         close $fd or die_error(undef, "Reading git-diff-tree failed");
2589
2590         # non-textual hash id's can be cached
2591         my $expires;
2592         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2593                 $expires = "+1d";
2594         }
2595         my $refs = git_get_references();
2596         my $ref = format_ref_marker($refs, $co{'id'});
2597
2598         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2599         my $have_snapshot = (defined $ctype && defined $suffix);
2600
2601         my $formats_nav = '';
2602         if (defined $file_name && defined $co{'parent'}) {
2603                 my $parent = $co{'parent'};
2604                 $formats_nav .=
2605                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2606                                 "blame");
2607         }
2608         git_header_html(undef, $expires);
2609         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2610                            $hash, $co{'tree'}, $hash,
2611                            $formats_nav);
2612
2613         if (defined $co{'parent'}) {
2614                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2615         } else {
2616                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2617         }
2618         print "<div class=\"title_text\">\n" .
2619               "<table cellspacing=\"0\">\n";
2620         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2621               "<tr>" .
2622               "<td></td><td> $ad{'rfc2822'}";
2623         if ($ad{'hour_local'} < 6) {
2624                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2625                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2626         } else {
2627                 printf(" (%02d:%02d %s)",
2628                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2629         }
2630         print "</td>" .
2631               "</tr>\n";
2632         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2633         print "<tr><td></td><td> $cd{'rfc2822'}" .
2634               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2635               "</td></tr>\n";
2636         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2637         print "<tr>" .
2638               "<td>tree</td>" .
2639               "<td class=\"sha1\">" .
2640               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2641                        class => "list"}, $co{'tree'}) .
2642               "</td>" .
2643               "<td class=\"link\">" .
2644               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2645                       "tree");
2646         if ($have_snapshot) {
2647                 print " | " .
2648                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2649         }
2650         print "</td>" .
2651               "</tr>\n";
2652         my $parents = $co{'parents'};
2653         foreach my $par (@$parents) {
2654                 print "<tr>" .
2655                       "<td>parent</td>" .
2656                       "<td class=\"sha1\">" .
2657                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2658                                class => "list"}, $par) .
2659                       "</td>" .
2660                       "<td class=\"link\">" .
2661                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2662                       " | " .
2663                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2664                       "</td>" .
2665                       "</tr>\n";
2666         }
2667         print "</table>".
2668               "</div>\n";
2669
2670         print "<div class=\"page_body\">\n";
2671         git_print_log($co{'comment'});
2672         print "</div>\n";
2673
2674         git_difftree_body(\@difftree, $hash, $parent);
2675
2676         git_footer_html();
2677 }
2678
2679 sub git_blobdiff {
2680         mkdir($git_temp, 0700);
2681         git_header_html();
2682         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2683                 my $formats_nav =
2684                         $cgi->a({-href => href(action=>"blobdiff_plain",
2685                                                hash=>$hash, hash_parent=>$hash_parent)},
2686                                 "plain");
2687                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2688                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2689         } else {
2690                 print <<HTML;
2691 <div class="page_nav"><br/><br/></div>
2692 <div class="title">$hash vs $hash_parent</div>
2693 HTML
2694         }
2695         git_print_page_path($file_name, "blob", $hash_base);
2696         print "<div class=\"page_body\">\n" .
2697               "<div class=\"diff_info\">blob:" .
2698               $cgi->a({-href => href(action=>"blob", hash=>$hash_parent,
2699                                      hash_base=>$hash_base, file_name=>($file_parent || $file_name))},
2700                       $hash_parent) .
2701               " -> blob:" .
2702               $cgi->a({-href => href(action=>"blob", hash=>$hash,
2703                                      hash_base=>$hash_base, file_name=>$file_name)},
2704                       $hash) .
2705               "</div>\n";
2706         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2707         print "</div>"; # page_body
2708         git_footer_html();
2709 }
2710
2711 sub git_blobdiff_plain {
2712         mkdir($git_temp, 0700);
2713         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2714         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2715 }
2716
2717 sub git_commitdiff {
2718         my $format = shift || 'html';
2719         my %co = parse_commit($hash);
2720         if (!%co) {
2721                 die_error(undef, "Unknown commit object");
2722         }
2723         if (!defined $hash_parent) {
2724                 $hash_parent = $co{'parent'} || '--root';
2725         }
2726
2727         # read commitdiff
2728         my $fd;
2729         my @difftree;
2730         my @patchset;
2731         if ($format eq 'html') {
2732                 open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C',
2733                         "--patch-with-raw", "--full-index", $hash_parent, $hash
2734                         or die_error(undef, "Open git-diff-tree failed");
2735
2736                 while (chomp(my $line = <$fd>)) {
2737                         # empty line ends raw part of diff-tree output
2738                         last unless $line;
2739                         push @difftree, $line;
2740                 }
2741                 @patchset = map { chomp; $_ } <$fd>;
2742
2743                 close $fd
2744                         or die_error(undef, "Reading git-diff-tree failed");
2745         } elsif ($format eq 'plain') {
2746                 open $fd, "-|", $GIT, "diff-tree", '-r', '-p', '-B', $hash_parent, $hash
2747                         or die_error(undef, "Open git-diff-tree failed");
2748         } else {
2749                 die_error(undef, "Unknown commitdiff format");
2750         }
2751
2752         # non-textual hash id's can be cached
2753         my $expires;
2754         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2755                 $expires = "+1d";
2756         }
2757
2758         # write commit message
2759         if ($format eq 'html') {
2760                 my $refs = git_get_references();
2761                 my $ref = format_ref_marker($refs, $co{'id'});
2762                 my $formats_nav =
2763                         $cgi->a({-href => href(action=>"commitdiff_plain",
2764                                                hash=>$hash, hash_parent=>$hash_parent)},
2765                                 "plain");
2766
2767                 git_header_html(undef, $expires);
2768                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2769                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2770                 print "<div class=\"page_body\">\n";
2771                 print "<div class=\"log\">\n";
2772                 git_print_simplified_log($co{'comment'}, 1); # skip title
2773                 print "</div>\n"; # class="log"
2774
2775         } elsif ($format eq 'plain') {
2776                 my $refs = git_get_references("tags");
2777                 my @tagnames;
2778                 if (exists $refs->{$hash}) {
2779                         @tagnames = map { s|^tags/|| } $refs->{$hash};
2780                 }
2781                 my $filename = basename($project) . "-$hash.patch";
2782
2783                 print $cgi->header(
2784                         -type => 'text/plain',
2785                         -charset => 'utf-8',
2786                         -expires => $expires,
2787                         -content_disposition => qq(inline; filename="$filename"));
2788                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2789                 print <<TEXT;
2790 From: $co{'author'}
2791 Date: $ad{'rfc2822'} ($ad{'tz_local'})
2792 Subject: $co{'title'}
2793 TEXT
2794                 foreach my $tag (@tagnames) {
2795                         print "X-Git-Tag: $tag\n";
2796                 }
2797                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
2798                 foreach my $line (@{$co{'comment'}}) {
2799                         print "$line\n";
2800                 }
2801                 print "---\n\n";
2802         }
2803
2804         # write patch
2805         if ($format eq 'html') {
2806                 #git_difftree_body(\@difftree, $hash, $hash_parent);
2807                 #print "<br/>\n";
2808
2809                 git_patchset_body(\@patchset, \@difftree, $hash, $hash_parent);
2810
2811                 print "</div>\n"; # class="page_body"
2812                 git_footer_html();
2813
2814         } elsif ($format eq 'plain') {
2815                 local $/ = undef;
2816                 print <$fd>;
2817                 close $fd
2818                         or print "Reading git-diff-tree failed\n";
2819         }
2820 }
2821
2822 sub git_commitdiff_plain {
2823         git_commitdiff('plain');
2824 }
2825
2826 sub git_history {
2827         if (!defined $hash_base) {
2828                 $hash_base = git_get_head_hash($project);
2829         }
2830         my $ftype;
2831         my %co = parse_commit($hash_base);
2832         if (!%co) {
2833                 die_error(undef, "Unknown commit object");
2834         }
2835         my $refs = git_get_references();
2836         git_header_html();
2837         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2838         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2839         if (!defined $hash && defined $file_name) {
2840                 $hash = git_get_hash_by_path($hash_base, $file_name);
2841         }
2842         if (defined $hash) {
2843                 $ftype = git_get_type($hash);
2844         }
2845         git_print_page_path($file_name, $ftype, $hash_base);
2846
2847         open my $fd, "-|",
2848                 $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2849         git_history_body($fd, $refs, $hash_base, $ftype);
2850
2851         close $fd;
2852         git_footer_html();
2853 }
2854
2855 sub git_search {
2856         if (!defined $searchtext) {
2857                 die_error(undef, "Text field empty");
2858         }
2859         if (!defined $hash) {
2860                 $hash = git_get_head_hash($project);
2861         }
2862         my %co = parse_commit($hash);
2863         if (!%co) {
2864                 die_error(undef, "Unknown commit object");
2865         }
2866         # pickaxe may take all resources of your box and run for several minutes
2867         # with every query - so decide by yourself how public you make this feature :)
2868         my $commit_search = 1;
2869         my $author_search = 0;
2870         my $committer_search = 0;
2871         my $pickaxe_search = 0;
2872         if ($searchtext =~ s/^author\\://i) {
2873                 $author_search = 1;
2874         } elsif ($searchtext =~ s/^committer\\://i) {
2875                 $committer_search = 1;
2876         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2877                 $commit_search = 0;
2878                 $pickaxe_search = 1;
2879         }
2880         git_header_html();
2881         git_print_page_nav('','', $hash,$co{'tree'},$hash);
2882         git_print_header_div('commit', esc_html($co{'title'}), $hash);
2883
2884         print "<table cellspacing=\"0\">\n";
2885         my $alternate = 0;
2886         if ($commit_search) {
2887                 $/ = "\0";
2888                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2889                 while (my $commit_text = <$fd>) {
2890                         if (!grep m/$searchtext/i, $commit_text) {
2891                                 next;
2892                         }
2893                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2894                                 next;
2895                         }
2896                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2897                                 next;
2898                         }
2899                         my @commit_lines = split "\n", $commit_text;
2900                         my %co = parse_commit(undef, \@commit_lines);
2901                         if (!%co) {
2902                                 next;
2903                         }
2904                         if ($alternate) {
2905                                 print "<tr class=\"dark\">\n";
2906                         } else {
2907                                 print "<tr class=\"light\">\n";
2908                         }
2909                         $alternate ^= 1;
2910                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2911                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2912                               "<td>" .
2913                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
2914                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
2915                         my $comment = $co{'comment'};
2916                         foreach my $line (@$comment) {
2917                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2918                                         my $lead = esc_html($1) || "";
2919                                         $lead = chop_str($lead, 30, 10);
2920                                         my $match = esc_html($2) || "";
2921                                         my $trail = esc_html($3) || "";
2922                                         $trail = chop_str($trail, 30, 10);
2923                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2924                                         print chop_str($text, 80, 5) . "<br/>\n";
2925                                 }
2926                         }
2927                         print "</td>\n" .
2928                               "<td class=\"link\">" .
2929                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2930                               " | " .
2931                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2932                         print "</td>\n" .
2933                               "</tr>\n";
2934                 }
2935                 close $fd;
2936         }
2937
2938         if ($pickaxe_search) {
2939                 $/ = "\n";
2940                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2941                 undef %co;
2942                 my @files;
2943                 while (my $line = <$fd>) {
2944                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2945                                 my %set;
2946                                 $set{'file'} = $6;
2947                                 $set{'from_id'} = $3;
2948                                 $set{'to_id'} = $4;
2949                                 $set{'id'} = $set{'to_id'};
2950                                 if ($set{'id'} =~ m/0{40}/) {
2951                                         $set{'id'} = $set{'from_id'};
2952                                 }
2953                                 if ($set{'id'} =~ m/0{40}/) {
2954                                         next;
2955                                 }
2956                                 push @files, \%set;
2957                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2958                                 if (%co) {
2959                                         if ($alternate) {
2960                                                 print "<tr class=\"dark\">\n";
2961                                         } else {
2962                                                 print "<tr class=\"light\">\n";
2963                                         }
2964                                         $alternate ^= 1;
2965                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2966                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2967                                               "<td>" .
2968                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
2969                                                       -class => "list subject"},
2970                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
2971                                         while (my $setref = shift @files) {
2972                                                 my %set = %$setref;
2973                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
2974                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
2975                                                               -class => "list"},
2976                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2977                                                       "<br/>\n";
2978                                         }
2979                                         print "</td>\n" .
2980                                               "<td class=\"link\">" .
2981                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2982                                               " | " .
2983                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2984                                         print "</td>\n" .
2985                                               "</tr>\n";
2986                                 }
2987                                 %co = parse_commit($1);
2988                         }
2989                 }
2990                 close $fd;
2991         }
2992         print "</table>\n";
2993         git_footer_html();
2994 }
2995
2996 sub git_shortlog {
2997         my $head = git_get_head_hash($project);
2998         if (!defined $hash) {
2999                 $hash = $head;
3000         }
3001         if (!defined $page) {
3002                 $page = 0;
3003         }
3004         my $refs = git_get_references();
3005
3006         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3007         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
3008                 or die_error(undef, "Open git-rev-list failed");
3009         my @revlist = map { chomp; $_ } <$fd>;
3010         close $fd;
3011
3012         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3013         my $next_link = '';
3014         if ($#revlist >= (100 * ($page+1)-1)) {
3015                 $next_link =
3016                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3017                                  -title => "Alt-n"}, "next");
3018         }
3019
3020
3021         git_header_html();
3022         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3023         git_print_header_div('summary', $project);
3024
3025         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3026
3027         git_footer_html();
3028 }
3029
3030 ## ......................................................................
3031 ## feeds (RSS, OPML)
3032
3033 sub git_rss {
3034         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3035         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
3036                 or die_error(undef, "Open git-rev-list failed");
3037         my @revlist = map { chomp; $_ } <$fd>;
3038         close $fd or die_error(undef, "Reading git-rev-list failed");
3039         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3040         print <<XML;
3041 <?xml version="1.0" encoding="utf-8"?>
3042 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3043 <channel>
3044 <title>$project $my_uri $my_url</title>
3045 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3046 <description>$project log</description>
3047 <language>en</language>
3048 XML
3049
3050         for (my $i = 0; $i <= $#revlist; $i++) {
3051                 my $commit = $revlist[$i];
3052                 my %co = parse_commit($commit);
3053                 # we read 150, we always show 30 and the ones more recent than 48 hours
3054                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3055                         last;
3056                 }
3057                 my %cd = parse_date($co{'committer_epoch'});
3058                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
3059                 my @difftree = map { chomp; $_ } <$fd>;
3060                 close $fd or next;
3061                 print "<item>\n" .
3062                       "<title>" .
3063                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3064                       "</title>\n" .
3065                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3066                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3067                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3068                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3069                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3070                       "<content:encoded>" .
3071                       "<![CDATA[\n";
3072                 my $comment = $co{'comment'};
3073                 foreach my $line (@$comment) {
3074                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3075                         print "$line<br/>\n";
3076                 }
3077                 print "<br/>\n";
3078                 foreach my $line (@difftree) {
3079                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3080                                 next;
3081                         }
3082                         my $file = validate_input(unquote($7));
3083                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3084                         print "$file<br/>\n";
3085                 }
3086                 print "]]>\n" .
3087                       "</content:encoded>\n" .
3088                       "</item>\n";
3089         }
3090         print "</channel></rss>";
3091 }
3092
3093 sub git_opml {
3094         my @list = git_get_projects_list();
3095
3096         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3097         print <<XML;
3098 <?xml version="1.0" encoding="utf-8"?>
3099 <opml version="1.0">
3100 <head>
3101   <title>$site_name Git OPML Export</title>
3102 </head>
3103 <body>
3104 <outline text="git RSS feeds">
3105 XML
3106
3107         foreach my $pr (@list) {
3108                 my %proj = %$pr;
3109                 my $head = git_get_head_hash($proj{'path'});
3110                 if (!defined $head) {
3111                         next;
3112                 }
3113                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
3114                 my %co = parse_commit($head);
3115                 if (!%co) {
3116                         next;
3117                 }
3118
3119                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3120                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3121                 my $html = "$my_url?p=$proj{'path'};a=summary";
3122                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3123         }
3124         print <<XML;
3125 </outline>
3126 </body>
3127 </opml>
3128 XML
3129 }