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

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke <ch@gierke.de>
   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 binmode STDOUT, ':utf8';
  18
  19 my $cgi = new CGI;
  20 my $version =           "261";
  21 my $my_url =            $cgi->url();
  22 my $my_uri =            $cgi->url(-absolute => 1);
  23 my $rss_link =          "";
  24
  25 # absolute fs-path which will be prepended to the project path
  26 #my $projectroot =      "/pub/scm";
  27 my $projectroot =       "/home/kay/public_html/pub/scm";
  28
  29 # location of the git-core binaries
  30 my $gitbin =            "/usr/bin";
  31
  32 # location for temporary files needed for diffs
  33 my $git_temp =          "/tmp/gitweb";
  34
  35 # target of the home link on top of all pages
  36 my $home_link =         $my_uri;
  37
  38 # html text to include at home page
  39 my $home_text =         "indextext.html";
  40
  41 # source of projects list
  42 #my $projects_list =    $projectroot;
  43 my $projects_list =     "index/index.aux";
  44
  45 # input validation and dispatch
  46 my $action = $cgi->param('a');
  47 if (defined $action) {
  48         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  49                 undef $action;
  50                 die_error(undef, "Invalid action parameter.");
  51         }
  52         if ($action eq "git-logo.png") {
  53                 git_logo();
  54                 exit;
  55         } elsif ($action eq "opml") {
  56                 git_opml();
  57                 exit;
  58         }
  59 }
  60
  61 my $order = $cgi->param('o');
  62 if (defined $order) {
  63         if ($order =~ m/[^0-9a-zA-Z_]/) {
  64                 undef $order;
  65                 die_error(undef, "Invalid order parameter.");
  66         }
  67 }
  68
  69 my $project = $cgi->param('p');
  70 if (defined $project) {
  71         $project = validate_input($project);
  72         if (!defined($project)) {
  73                 die_error(undef, "Invalid project parameter.");
  74         }
  75         if (!(-d "$projectroot/$project")) {
  76                 undef $project;
  77                 die_error(undef, "No such directory.");
  78         }
  79         if (!(-e "$projectroot/$project/HEAD")) {
  80                 undef $project;
  81                 die_error(undef, "No such project.");
  82         }
  83         $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
  84                     "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
  85         $ENV{'GIT_DIR'} = "$projectroot/$project";
  86 } else {
  87         git_project_list();
  88         exit;
  89 }
  90
  91 my $file_name = $cgi->param('f');
  92 if (defined $file_name) {
  93         $file_name = validate_input($file_name);
  94         if (!defined($file_name)) {
  95                 die_error(undef, "Invalid file parameter.");
  96         }
  97 }
  98
  99 my $hash = $cgi->param('h');
 100 if (defined $hash) {
 101         $hash = validate_input($hash);
 102         if (!defined($hash)) {
 103                 die_error(undef, "Invalid hash parameter.");
 104         }
 105 }
 106
 107 my $hash_parent = $cgi->param('hp');
 108 if (defined $hash_parent) {
 109         $hash_parent = validate_input($hash_parent);
 110         if (!defined($hash_parent)) {
 111                 die_error(undef, "Invalid hash parent parameter.");
 112         }
 113 }
 114
 115 my $hash_base = $cgi->param('hb');
 116 if (defined $hash_base) {
 117         $hash_base = validate_input($hash_base);
 118         if (!defined($hash_base)) {
 119                 die_error(undef, "Invalid hash base parameter.");
 120         }
 121 }
 122
 123 my $page = $cgi->param('pg');
 124 if (defined $page) {
 125         if ($page =~ m/[^0-9]$/) {
 126                 undef $page;
 127                 die_error(undef, "Invalid page parameter.");
 128         }
 129 }
 130
 131 my $searchtext = $cgi->param('s');
 132 if (defined $searchtext) {
 133         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 134                 undef $searchtext;
 135                 die_error(undef, "Invalid search parameter.");
 136         }
 137         $searchtext = quotemeta $searchtext;
 138 }
 139
 140 sub validate_input {
 141         my $input = shift;
 142
 143         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 144                 return $input;
 145         }
 146         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 147                 return undef;
 148         }
 149         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 150                 return undef;
 151         }
 152         return $input;
 153 }
 154
 155 if (!defined $action || $action eq "summary") {
 156         git_summary();
 157         exit;
 158 } elsif ($action eq "heads") {
 159         git_heads();
 160         exit;
 161 } elsif ($action eq "tags") {
 162         git_tags();
 163         exit;
 164 } elsif ($action eq "blob") {
 165         git_blob();
 166         exit;
 167 } elsif ($action eq "blob_plain") {
 168         git_blob_plain();
 169         exit;
 170 } elsif ($action eq "tree") {
 171         git_tree();
 172         exit;
 173 } elsif ($action eq "rss") {
 174         git_rss();
 175         exit;
 176 } elsif ($action eq "commit") {
 177         git_commit();
 178         exit;
 179 } elsif ($action eq "log") {
 180         git_log();
 181         exit;
 182 } elsif ($action eq "blobdiff") {
 183         git_blobdiff();
 184         exit;
 185 } elsif ($action eq "blobdiff_plain") {
 186         git_blobdiff_plain();
 187         exit;
 188 } elsif ($action eq "commitdiff") {
 189         git_commitdiff();
 190         exit;
 191 } elsif ($action eq "commitdiff_plain") {
 192         git_commitdiff_plain();
 193         exit;
 194 } elsif ($action eq "history") {
 195         git_history();
 196         exit;
 197 } elsif ($action eq "search") {
 198         git_search();
 199         exit;
 200 } elsif ($action eq "shortlog") {
 201         git_shortlog();
 202         exit;
 203 } elsif ($action eq "tag") {
 204         git_tag();
 205         exit;
 206 } else {
 207         undef $action;
 208         die_error(undef, "Unknown action.");
 209         exit;
 210 }
 211
 212 # quote unsafe chars, but keep the slash, even when it's not
 213 # correct, but quoted slashes look too horrible in bookmarks
 214 sub esc_param {
 215         my $str = shift;
 216         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 217         $str =~ s/\+/%2B/g;
 218         $str =~ s/ /\+/g;
 219         return $str;
 220 }
 221
 222 # replace invalid utf8 character with SUBSTITUTION sequence
 223 sub esc_html {
 224         my $str = shift;
 225         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 226         $str = escapeHTML($str);
 227         return $str;
 228 }
 229
 230 # git may return quoted and escaped filenames
 231 sub unquote {
 232         my $str = shift;
 233         if ($str =~ m/^"(.*)"$/) {
 234                 $str = $1;
 235                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 236         }
 237         return $str;
 238 }
 239
 240 sub git_header_html {
 241         my $status = shift || "200 OK";
 242         my $expires = shift;
 243
 244         my $title = "git";
 245         if (defined $project) {
 246                 $title .= " - $project";
 247                 if (defined $action) {
 248                         $title .= "/$action";
 249                 }
 250         }
 251         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status, -expires => $expires);
 252         print <<EOF;
 253 <?xml version="1.0" encoding="utf-8"?>
 254 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 255 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 256 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 257 <head>
 258 <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
 259 <meta name="robots" content="index, nofollow"/>
 260 <title>$title</title>
 261 $rss_link
 262 <style type="text/css">
 263 body { font-family: sans-serif; font-size: 12px; margin:0px; border:solid #d9d8d1; border-width:1px; margin:10px; }
 264 a { color:#0000cc; }
 265 a:hover, a:visited, a:active { color:#880000; }
 266 div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
 267 div.page_header a:visited, a.header { color:#0000cc; }
 268 div.page_header a:hover { color:#880000; }
 269 div.page_nav { padding:8px; }
 270 div.page_nav a:visited { color:#0000cc; }
 271 div.page_path { padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
 272 div.page_footer { height:17px; padding:4px 8px; background-color: #d9d8d1; }
 273 div.page_footer_text { float:left; color:#555555; font-style:italic; }
 274 div.page_body { padding:8px; }
 275 div.title, a.title {
 276         display:block; padding:6px 8px;
 277         font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 278 }
 279 a.title:hover { background-color: #d9d8d1; }
 280 div.title_text { padding:6px 0px; border: solid #d9d8d1; border-width:0px 0px 1px; }
 281 div.log_body { padding:8px 8px 8px 150px; }
 282 span.age { position:relative; float:left; width:142px; font-style:italic; }
 283 div.log_link {
 284         padding:0px 8px;
 285         font-size:10px; font-family:sans-serif; font-style:normal;
 286         position:relative; float:left; width:136px;
 287 }
 288 div.list_head { padding:6px 8px 4px; border:solid #d9d8d1; border-width:1px 0px 0px; font-style:italic; }
 289 a.list { text-decoration:none; color:#000000; }
 290 a.list:hover { text-decoration:underline; color:#880000; }
 291 a.text { text-decoration:none; color:#0000cc; }
 292 a.text:visited { text-decoration:none; color:#880000; }
 293 a.text:hover { text-decoration:underline; color:#880000; }
 294 table { padding:8px 4px; }
 295 th { padding:2px 5px; font-size:12px; text-align:left; }
 296 tr.light:hover { background-color:#edece6; }
 297 tr.dark { background-color:#f6f6f0; }
 298 tr.dark:hover { background-color:#edece6; }
 299 td { padding:2px 5px; font-size:12px; vertical-align:top; }
 300 td.link { padding:2px 5px; font-family:sans-serif; font-size:10px; }
 301 div.pre { font-family:monospace; font-size:12px; white-space:pre; }
 302 div.diff_info { font-family:monospace; color:#000099; background-color:#edece6; font-style:italic; }
 303 div.index_include { border:solid #d9d8d1; border-width:0px 0px 1px; padding:12px 8px; }
 304 div.search { margin:4px 8px; position:absolute; top:56px; right:12px }
 305 a.linenr { color:#999999; text-decoration:none }
 306 a.rss_logo {
 307         float:right; padding:3px 0px; width:35px; line-height:10px;
 308         border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
 309         color:#ffffff; background-color:#ff6600;
 310         font-weight:bold; font-family:sans-serif; font-size:10px;
 311         text-align:center; text-decoration:none;
 312 }
 313 a.rss_logo:hover { background-color:#ee5500; }
 314 span.tag {
 315         padding:0px 4px; font-size:10px; font-weight:normal;
 316         background-color:#ffffaa; border:1px solid; border-color:#ffffcc #ffee00 #ffee00 #ffffcc;
 317 }
 318 </style>
 319 </head>
 320 <body>
 321 EOF
 322         print "<div class=\"page_header\">\n" .
 323               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 324               "<img src=\"$my_uri?" . esc_param("a=git-logo.png") . "\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
 325               "</a>\n";
 326         print $cgi->a({-href => esc_param($home_link)}, "projects") . " / ";
 327         if (defined $project) {
 328                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, esc_html($project));
 329                 if (defined $action) {
 330                         print " / $action";
 331                 }
 332                 print "\n";
 333                 if (!defined $searchtext) {
 334                         $searchtext = "";
 335                 }
 336                 my $search_hash;
 337                 if (defined $hash) {
 338                         $search_hash = $hash;
 339                 } else {
 340                         $search_hash  = "HEAD";
 341                 }
 342                 $cgi->param("a", "search");
 343                 $cgi->param("h", $search_hash);
 344                 print $cgi->startform(-method => "get", -action => $my_uri) .
 345                       "<div class=\"search\">\n" .
 346                       $cgi->hidden(-name => "p") . "\n" .
 347                       $cgi->hidden(-name => "a") . "\n" .
 348                       $cgi->hidden(-name => "h") . "\n" .
 349                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 350                       "</div>" .
 351                       $cgi->end_form() . "\n";
 352         }
 353         print "</div>\n";
 354 }
 355
 356 sub git_footer_html {
 357         print "<div class=\"page_footer\">\n";
 358         if (defined $project) {
 359                 my $descr = git_read_description($project);
 360                 if (defined $descr) {
 361                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 362                 }
 363                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
 364         } else {
 365                 print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
 366         }
 367         print "</div>\n" .
 368               "</body>\n" .
 369               "</html>";
 370 }
 371
 372 sub die_error {
 373         my $status = shift || "403 Forbidden";
 374         my $error = shift || "Malformed query, file missing or permission denied";
 375
 376         git_header_html($status);
 377         print "<div class=\"page_body\">\n" .
 378               "<br/><br/>\n" .
 379               "$status - $error\n" .
 380               "<br/>\n" .
 381               "</div>\n";
 382         git_footer_html();
 383         exit;
 384 }
 385
 386 sub git_get_type {
 387         my $hash = shift;
 388
 389         open my $fd, "-|", "$gitbin/git-cat-file -t $hash" or return;
 390         my $type = <$fd>;
 391         close $fd or return;
 392         chomp $type;
 393         return $type;
 394 }
 395
 396 sub git_read_hash {
 397         my $path = shift;
 398
 399         open my $fd, "$projectroot/$path" or return undef;
 400         my $head = <$fd>;
 401         close $fd;
 402         chomp $head;
 403         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 404                 return $head;
 405         }
 406 }
 407
 408 sub git_read_description {
 409         my $path = shift;
 410
 411         open my $fd, "$projectroot/$path/description" or return undef;
 412         my $descr = <$fd>;
 413         close $fd;
 414         chomp $descr;
 415         return $descr;
 416 }
 417
 418 sub git_read_tag {
 419         my $tag_id = shift;
 420         my %tag;
 421         my @comment;
 422
 423         open my $fd, "-|", "$gitbin/git-cat-file tag $tag_id" or return;
 424         $tag{'id'} = $tag_id;
 425         while (my $line = <$fd>) {
 426                 chomp $line;
 427                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 428                         $tag{'object'} = $1;
 429                 } elsif ($line =~ m/^type (.+)$/) {
 430                         $tag{'type'} = $1;
 431                 } elsif ($line =~ m/^tag (.+)$/) {
 432                         $tag{'name'} = $1;
 433                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 434                         $tag{'author'} = $1;
 435                         $tag{'epoch'} = $2;
 436                         $tag{'tz'} = $3;
 437                 } elsif ($line =~ m/--BEGIN/) {
 438                         push @comment, $line;
 439                         last;
 440                 } elsif ($line eq "") {
 441                         last;
 442                 }
 443         }
 444         push @comment, <$fd>;
 445         $tag{'comment'} = \@comment;
 446         close $fd or return;
 447         if (!defined $tag{'name'}) {
 448                 return
 449         };
 450         return %tag
 451 }
 452
 453 sub age_string {
 454         my $age = shift;
 455         my $age_str;
 456
 457         if ($age > 60*60*24*365*2) {
 458                 $age_str = (int $age/60/60/24/365);
 459                 $age_str .= " years ago";
 460         } elsif ($age > 60*60*24*(365/12)*2) {
 461                 $age_str = int $age/60/60/24/(365/12);
 462                 $age_str .= " months ago";
 463         } elsif ($age > 60*60*24*7*2) {
 464                 $age_str = int $age/60/60/24/7;
 465                 $age_str .= " weeks ago";
 466         } elsif ($age > 60*60*24*2) {
 467                 $age_str = int $age/60/60/24;
 468                 $age_str .= " days ago";
 469         } elsif ($age > 60*60*2) {
 470                 $age_str = int $age/60/60;
 471                 $age_str .= " hours ago";
 472         } elsif ($age > 60*2) {
 473                 $age_str = int $age/60;
 474                 $age_str .= " min ago";
 475         } elsif ($age > 2) {
 476                 $age_str = int $age;
 477                 $age_str .= " sec ago";
 478         } else {
 479                 $age_str .= " right now";
 480         }
 481         return $age_str;
 482 }
 483
 484 sub git_read_commit {
 485         my $commit_id = shift;
 486         my $commit_text = shift;
 487
 488         my @commit_lines;
 489         my %co;
 490
 491         if (defined $commit_text) {
 492                 @commit_lines = @$commit_text;
 493         } else {
 494                 $/ = "\0";
 495                 open my $fd, "-|", "$gitbin/git-rev-list --header --parents --max-count=1 $commit_id" or return;
 496                 @commit_lines = split '\n', <$fd>;
 497                 close $fd or return;
 498                 $/ = "\n";
 499                 pop @commit_lines;
 500         }
 501         my $header = shift @commit_lines;
 502         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 503                 return;
 504         }
 505         ($co{'id'}, my @parents) = split ' ', $header;
 506         $co{'parents'} = \@parents;
 507         $co{'parent'} = $parents[0];
 508         while (my $line = shift @commit_lines) {
 509                 last if $line eq "\n";
 510                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 511                         $co{'tree'} = $1;
 512                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 513                         $co{'author'} = $1;
 514                         $co{'author_epoch'} = $2;
 515                         $co{'author_tz'} = $3;
 516                         if ($co{'author'} =~ m/^([^<]+) </) {
 517                                 $co{'author_name'} = $1;
 518                         } else {
 519                                 $co{'author_name'} = $co{'author'};
 520                         }
 521                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 522                         $co{'committer'} = $1;
 523                         $co{'committer_epoch'} = $2;
 524                         $co{'committer_tz'} = $3;
 525                         $co{'committer_name'} = $co{'committer'};
 526                         $co{'committer_name'} =~ s/ <.*//;
 527                 }
 528         }
 529         if (!defined $co{'tree'}) {
 530                 return;
 531         };
 532
 533         foreach my $title (@commit_lines) {
 534                 $title =~ s/^    //;
 535                 if ($title ne "") {
 536                         $co{'title'} = chop_str($title, 80, 5);
 537                         # remove leading stuff of merges to make the interesting part visible
 538                         if (length($title) > 50) {
 539                                 $title =~ s/^Automatic //;
 540                                 $title =~ s/^merge (of|with) /Merge ... /i;
 541                                 if (length($title) > 50) {
 542                                         $title =~ s/(http|rsync):\/\///;
 543                                 }
 544                                 if (length($title) > 50) {
 545                                         $title =~ s/(master|www|rsync)\.//;
 546                                 }
 547                                 if (length($title) > 50) {
 548                                         $title =~ s/kernel.org:?//;
 549                                 }
 550                                 if (length($title) > 50) {
 551                                         $title =~ s/\/pub\/scm//;
 552                                 }
 553                         }
 554                         $co{'title_short'} = chop_str($title, 50, 5);
 555                         last;
 556                 }
 557         }
 558         # remove added spaces
 559         foreach my $line (@commit_lines) {
 560                 $line =~ s/^    //;
 561         }
 562         $co{'comment'} = \@commit_lines;
 563
 564         my $age = time - $co{'committer_epoch'};
 565         $co{'age'} = $age;
 566         $co{'age_string'} = age_string($age);
 567         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 568         if ($age > 60*60*24*7*2) {
 569                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 570                 $co{'age_string_age'} = $co{'age_string'};
 571         } else {
 572                 $co{'age_string_date'} = $co{'age_string'};
 573                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 574         }
 575         return %co;
 576 }
 577
 578 sub git_diff_print {
 579         my $from = shift;
 580         my $from_name = shift;
 581         my $to = shift;
 582         my $to_name = shift;
 583         my $format = shift || "html";
 584
 585         my $from_tmp = "/dev/null";
 586         my $to_tmp = "/dev/null";
 587         my $pid = $$;
 588
 589         # create tmp from-file
 590         if (defined $from) {
 591                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 592                 open my $fd2, "> $from_tmp";
 593                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 594                 my @file = <$fd>;
 595                 print $fd2 @file;
 596                 close $fd2;
 597                 close $fd;
 598         }
 599
 600         # create tmp to-file
 601         if (defined $to) {
 602                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 603                 open my $fd2, "> $to_tmp";
 604                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 605                 my @file = <$fd>;
 606                 print $fd2 @file;
 607                 close $fd2;
 608                 close $fd;
 609         }
 610
 611         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 612         if ($format eq "plain") {
 613                 undef $/;
 614                 print <$fd>;
 615                 $/ = "\n";
 616         } else {
 617                 while (my $line = <$fd>) {
 618                         chomp($line);
 619                         my $char = substr($line, 0, 1);
 620                         my $color = "";
 621                         if ($char eq '+') {
 622                                 $color = " style=\"color:#008800;\"";
 623                         } elsif ($char eq "-") {
 624                                 $color = " style=\"color:#cc0000;\"";
 625                         } elsif ($char eq "@") {
 626                                 $color = " style=\"color:#990099;\"";
 627                         } elsif ($char eq "\\") {
 628                                 # skip errors
 629                                 next;
 630                         }
 631                         while ((my $pos = index($line, "\t")) != -1) {
 632                                 if (my $count = (8 - (($pos-1) % 8))) {
 633                                         my $spaces = ' ' x $count;
 634                                         $line =~ s/\t/$spaces/;
 635                                 }
 636                         }
 637                         print "<div class=\"pre\"$color>" . esc_html($line) . "</div>\n";
 638                 }
 639         }
 640         close $fd;
 641
 642         if (defined $from) {
 643                 unlink($from_tmp);
 644         }
 645         if (defined $to) {
 646                 unlink($to_tmp);
 647         }
 648 }
 649
 650 sub mode_str {
 651         my $mode = oct shift;
 652
 653         if (S_ISDIR($mode & S_IFMT)) {
 654                 return 'drwxr-xr-x';
 655         } elsif (S_ISLNK($mode)) {
 656                 return 'lrwxrwxrwx';
 657         } elsif (S_ISREG($mode)) {
 658                 # git cares only about the executable bit
 659                 if ($mode & S_IXUSR) {
 660                         return '-rwxr-xr-x';
 661                 } else {
 662                         return '-rw-r--r--';
 663                 };
 664         } else {
 665                 return '----------';
 666         }
 667 }
 668
 669 sub chop_str {
 670         my $str = shift;
 671         my $len = shift;
 672         my $add_len = shift || 10;
 673
 674         # allow only $len chars, but don't cut a word if it would fit in $add_len
 675         # if it doesn't fit, cut it if it's still longer than the dots we would add
 676         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 677         my $body = $1;
 678         my $tail = $2;
 679         if (length($tail) > 4) {
 680                 $tail = " ...";
 681         }
 682         return "$body$tail";
 683 }
 684
 685 sub file_type {
 686         my $mode = oct shift;
 687
 688         if (S_ISDIR($mode & S_IFMT)) {
 689                 return "directory";
 690         } elsif (S_ISLNK($mode)) {
 691                 return "symlink";
 692         } elsif (S_ISREG($mode)) {
 693                 return "file";
 694         } else {
 695                 return "unknown";
 696         }
 697 }
 698
 699 sub format_log_line_html {
 700         my $line = shift;
 701
 702         $line = esc_html($line);
 703         $line =~ s/ /&nbsp;/g;
 704         if ($line =~ m/([0-9a-fA-F]{40})/) {
 705                 my $hash_text = $1;
 706                 if (git_get_type($hash_text) eq "commit") {
 707                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 708                         $line =~ s/$hash_text/$link/;
 709                 }
 710         }
 711         return $line;
 712 }
 713
 714 sub date_str {
 715         my $epoch = shift;
 716         my $tz = shift || "-0000";
 717
 718         my %date;
 719         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 720         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 721         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 722         $date{'hour'} = $hour;
 723         $date{'minute'} = $min;
 724         $date{'mday'} = $mday;
 725         $date{'day'} = $days[$wday];
 726         $date{'month'} = $months[$mon];
 727         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 728         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 729
 730         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 731         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 732         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 733         $date{'hour_local'} = $hour;
 734         $date{'minute_local'} = $min;
 735         $date{'tz_local'} = $tz;
 736         return %date;
 737 }
 738
 739 # git-logo (cached in browser for one day)
 740 sub git_logo {
 741         binmode STDOUT, ':raw';
 742         print $cgi->header(-type => 'image/png', -expires => '+1d');
 743         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 744         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 745                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 746                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 747                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 748                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 749                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 750                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 751                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 752                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 753                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 754                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 755                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 756                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 757 }
 758
 759 sub get_file_owner {
 760         my $path = shift;
 761
 762         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 763         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 764         if (!defined $gcos) {
 765                 return undef;
 766         }
 767         my $owner = $gcos;
 768         $owner =~ s/[,;].*$//;
 769         return $owner;
 770 }
 771
 772 sub git_read_projects {
 773         my @list;
 774
 775         if (-d $projects_list) {
 776                 # search in directory
 777                 my $dir = $projects_list;
 778                 opendir my $dh, $dir or return undef;
 779                 while (my $dir = readdir($dh)) {
 780                         if (-e "$projectroot/$dir/HEAD") {
 781                                 my $pr = {
 782                                         path => $dir,
 783                                 };
 784                                 push @list, $pr
 785                         }
 786                 }
 787                 closedir($dh);
 788         } elsif (-f $projects_list) {
 789                 # read from file(url-encoded):
 790                 # 'git%2Fgit.git Linus+Torvalds'
 791                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 792                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 793                 open my $fd , $projects_list or return undef;
 794                 while (my $line = <$fd>) {
 795                         chomp $line;
 796                         my ($path, $owner) = split ' ', $line;
 797                         $path = unescape($path);
 798                         $owner = unescape($owner);
 799                         if (!defined $path) {
 800                                 next;
 801                         }
 802                         if (-e "$projectroot/$path/HEAD") {
 803                                 my $pr = {
 804                                         path => $path,
 805                                         owner => $owner,
 806                                 };
 807                                 push @list, $pr
 808                         }
 809                 }
 810                 close $fd;
 811         }
 812         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 813         return @list;
 814 }
 815
 816 sub git_project_list {
 817         my @list = git_read_projects();
 818         my @projects;
 819         if (!@list) {
 820                 die_error(undef, "No project found.");
 821         }
 822         foreach my $pr (@list) {
 823                 my $head = git_read_hash("$pr->{'path'}/HEAD");
 824                 if (!defined $head) {
 825                         next;
 826                 }
 827                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 828                 my %co = git_read_commit($head);
 829                 if (!%co) {
 830                         next;
 831                 }
 832                 $pr->{'commit'} = \%co;
 833                 if (!defined $pr->{'descr'}) {
 834                         my $descr = git_read_description($pr->{'path'}) || "";
 835                         $pr->{'descr'} = chop_str($descr, 25, 5);
 836                 }
 837                 if (!defined $pr->{'owner'}) {
 838                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 839                 }
 840                 push @projects, $pr;
 841         }
 842         git_header_html();
 843         if (-f $home_text) {
 844                 print "<div class=\"index_include\">\n";
 845                 open (my $fd, $home_text);
 846                 print <$fd>;
 847                 close $fd;
 848                 print "</div>\n";
 849         }
 850         print "<table cellspacing=\"0\">\n" .
 851               "<tr>\n";
 852         if (!defined($order) || (defined($order) && ($order eq "project"))) {
 853                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 854                 print "<th>Project</th>\n";
 855         } else {
 856                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 857         }
 858         if (defined($order) && ($order eq "descr")) {
 859                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 860                 print "<th>Description</th>\n";
 861         } else {
 862                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 863         }
 864         if (defined($order) && ($order eq "owner")) {
 865                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 866                 print "<th>Owner</th>\n";
 867         } else {
 868                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 869         }
 870         if (defined($order) && ($order eq "age")) {
 871                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 872                 print "<th>Last Change</th>\n";
 873         } else {
 874                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 875         }
 876         print "<th></th>\n" .
 877               "</tr>\n";
 878         my $alternate = 0;
 879         foreach my $pr (@projects) {
 880                 if ($alternate) {
 881                         print "<tr class=\"dark\">\n";
 882                 } else {
 883                         print "<tr class=\"light\">\n";
 884                 }
 885                 $alternate ^= 1;
 886                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
 887                       "<td>$pr->{'descr'}</td>\n" .
 888                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 889                 my $colored_age;
 890                 if ($pr->{'commit'}{'age'} < 60*60*2) {
 891                         $colored_age = "<span style =\"color: #009900;\"><b><i>$pr->{'commit'}{'age_string'}</i></b></span>";
 892                 } elsif ($pr->{'commit'}{'age'} < 60*60*24*2) {
 893                         $colored_age = "<span style =\"color: #009900;\"><i>$pr->{'commit'}{'age_string'}</i></span>";
 894                 } else {
 895                         $colored_age = "<i>$pr->{'commit'}{'age_string'}</i>";
 896                 }
 897                 print "<td>$colored_age</td>\n" .
 898                       "<td class=\"link\">" .
 899                       $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
 900                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
 901                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
 902                       "</td>\n" .
 903                       "</tr>\n";
 904         }
 905         print "</table>\n";
 906         git_footer_html();
 907 }
 908
 909 sub read_info_ref {
 910         my $type = shift || "";
 911         my %refs;
 912         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 913         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 914         open my $fd, "$projectroot/$project/info/refs" or return;
 915         while (my $line = <$fd>) {
 916                 chomp($line);
 917                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
 918                         if (defined $refs{$1}) {
 919                                 $refs{$1} .= " / $2";
 920                         } else {
 921                                 $refs{$1} = $2;
 922                         }
 923                 }
 924         }
 925         close $fd or return;
 926         return \%refs;
 927 }
 928
 929 sub git_read_refs {
 930         my $ref_dir = shift;
 931         my @reflist;
 932
 933         my @refs;
 934         opendir my $dh, "$projectroot/$project/$ref_dir";
 935         while (my $dir = readdir($dh)) {
 936                 if ($dir =~ m/^\./) {
 937                         next;
 938                 }
 939                 if (-d "$projectroot/$project/$ref_dir/$dir") {
 940                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
 941                         my @subdirs = grep !m/^\./, readdir $dh2;
 942                         closedir($dh2);
 943                         foreach my $subdir (@subdirs) {
 944                                 push @refs, "$dir/$subdir"
 945                         }
 946                         next;
 947                 }
 948                 push @refs, $dir;
 949         }
 950         closedir($dh);
 951         foreach my $ref_file (@refs) {
 952                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
 953                 my $type = git_get_type($ref_id) || next;
 954                 my %ref_item;
 955                 my %co;
 956                 $ref_item{'type'} = $type;
 957                 $ref_item{'id'} = $ref_id;
 958                 $ref_item{'epoch'} = 0;
 959                 $ref_item{'age'} = "unknown";
 960                 if ($type eq "tag") {
 961                         my %tag = git_read_tag($ref_id);
 962                         $ref_item{'comment'} = $tag{'comment'};
 963                         if ($tag{'type'} eq "commit") {
 964                                 %co = git_read_commit($tag{'object'});
 965                                 $ref_item{'epoch'} = $co{'committer_epoch'};
 966                                 $ref_item{'age'} = $co{'age_string'};
 967                         } elsif (defined($tag{'epoch'})) {
 968                                 my $age = time - $tag{'epoch'};
 969                                 $ref_item{'epoch'} = $tag{'epoch'};
 970                                 $ref_item{'age'} = age_string($age);
 971                         }
 972                         $ref_item{'reftype'} = $tag{'type'};
 973                         $ref_item{'name'} = $tag{'name'};
 974                         $ref_item{'refid'} = $tag{'object'};
 975                 } elsif ($type eq "commit"){
 976                         %co = git_read_commit($ref_id);
 977                         $ref_item{'reftype'} = "commit";
 978                         $ref_item{'name'} = $ref_file;
 979                         $ref_item{'title'} = $co{'title'};
 980                         $ref_item{'refid'} = $ref_id;
 981                         $ref_item{'epoch'} = $co{'committer_epoch'};
 982                         $ref_item{'age'} = $co{'age_string'};
 983                 }
 984
 985                 push @reflist, \%ref_item;
 986         }
 987         # sort tags by age
 988         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 989         return \@reflist;
 990 }
 991
 992 sub git_summary {
 993         my $descr = git_read_description($project) || "none";
 994         my $head = git_read_hash("$project/HEAD");
 995         my %co = git_read_commit($head);
 996         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 997
 998         my $owner;
 999         if (-f $projects_list) {
1000                 open (my $fd , $projects_list);
1001                 while (my $line = <$fd>) {
1002                         chomp $line;
1003                         my ($pr, $ow) = split ' ', $line;
1004                         $pr = unescape($pr);
1005                         $ow = unescape($ow);
1006                         if ($pr eq $project) {
1007                                 $owner = $ow;
1008                                 last;
1009                         }
1010                 }
1011                 close $fd;
1012         }
1013         if (!defined $owner) {
1014                 $owner = get_file_owner("$projectroot/$project");
1015         }
1016
1017         my $refs = read_info_ref();
1018         git_header_html();
1019         print "<div class=\"page_nav\">\n" .
1020               "summary".
1021               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1022               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1023               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1024               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1025               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree") .
1026               "<br/><br/>\n" .
1027               "</div>\n";
1028         print "<div class=\"title\">&nbsp;</div>\n";
1029         print "<table cellspacing=\"0\">\n" .
1030               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1031               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1032               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1033               "</table>\n";
1034         open my $fd, "-|", "$gitbin/git-rev-list --max-count=17 " . git_read_hash("$project/HEAD") or die_error(undef, "Open failed.");
1035         my (@revlist) = map { chomp; $_ } <$fd>;
1036         close $fd;
1037         print "<div>\n" .
1038               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1039               "</div>\n";
1040         my $i = 16;
1041         print "<table cellspacing=\"0\">\n";
1042         my $alternate = 0;
1043         foreach my $commit (@revlist) {
1044                 my %co = git_read_commit($commit);
1045                 my %ad = date_str($co{'author_epoch'});
1046                 if ($alternate) {
1047                         print "<tr class=\"dark\">\n";
1048                 } else {
1049                         print "<tr class=\"light\">\n";
1050                 }
1051                 $alternate ^= 1;
1052                 if ($i-- > 0) {
1053                         my $ref = "";
1054                         if (defined $refs->{$commit}) {
1055                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1056                         }
1057                         print "<td><i>$co{'age_string'}</i></td>\n" .
1058                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1059                               "<td>";
1060                         if (length($co{'title_short'}) < length($co{'title'})) {
1061                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1062                                       "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
1063                         } else {
1064                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1065                                       "<b>" . esc_html($co{'title'}) . "$ref</b>");
1066                         }
1067                         print "</td>\n" .
1068                               "<td class=\"link\">" .
1069                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1070                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1071                               "</td>\n" .
1072                               "</tr>";
1073                 } else {
1074                         print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1075                         "</tr>";
1076                         last;
1077                 }
1078         }
1079         print "</table\n>";
1080
1081         my $taglist = git_read_refs("refs/tags");
1082         if (defined @$taglist) {
1083                 print "<div>\n" .
1084                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1085                       "</div>\n";
1086                 my $i = 16;
1087                 print "<table cellspacing=\"0\">\n";
1088                 my $alternate = 0;
1089                 foreach my $entry (@$taglist) {
1090                         my %tag = %$entry;
1091                         my $comment_lines = $tag{'comment'};
1092                         my $comment = shift @$comment_lines;
1093                         if (defined($comment)) {
1094                                 $comment = chop_str($comment, 30, 5);
1095                         }
1096                         if ($alternate) {
1097                                 print "<tr class=\"dark\">\n";
1098                         } else {
1099                                 print "<tr class=\"light\">\n";
1100                         }
1101                         $alternate ^= 1;
1102                         if ($i-- > 0) {
1103                                 print "<td><i>$tag{'age'}</i></td>\n" .
1104                                       "<td>" .
1105                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1106                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1107                                       "</td>\n" .
1108                                       "<td>";
1109                                 if (defined($comment)) {
1110                                       print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1111                                 }
1112                                 print "</td>\n" .
1113                                       "<td class=\"link\">";
1114                                 if ($tag{'type'} eq "tag") {
1115                                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1116                                 }
1117                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1118                                 if ($tag{'reftype'} eq "commit") {
1119                                       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1120                                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1121                                 }
1122                                 print "</td>\n" .
1123                                       "</tr>";
1124                         } else {
1125                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1126                                 "</tr>";
1127                                 last;
1128                         }
1129                 }
1130                 print "</table\n>";
1131         }
1132
1133         my $headlist = git_read_refs("refs/heads");
1134         if (defined @$headlist) {
1135                 print "<div>\n" .
1136                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1137                       "</div>\n";
1138                 my $i = 16;
1139                 print "<table cellspacing=\"0\">\n";
1140                 my $alternate = 0;
1141                 foreach my $entry (@$headlist) {
1142                         my %tag = %$entry;
1143                         if ($alternate) {
1144                                 print "<tr class=\"dark\">\n";
1145                         } else {
1146                                 print "<tr class=\"light\">\n";
1147                         }
1148                         $alternate ^= 1;
1149                         if ($i-- > 0) {
1150                                 print "<td><i>$tag{'age'}</i></td>\n" .
1151                                       "<td>" .
1152                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1153                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1154                                       "</td>\n" .
1155                                       "<td class=\"link\">" .
1156                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1157                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1158                                       "</td>\n" .
1159                                       "</tr>";
1160                         } else {
1161                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1162                                 "</tr>";
1163                                 last;
1164                         }
1165                 }
1166                 print "</table\n>";
1167         }
1168         git_footer_html();
1169 }
1170
1171 sub git_tag {
1172         my $head = git_read_hash("$project/HEAD");
1173         git_header_html();
1174         print "<div class=\"page_nav\">\n" .
1175               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1176               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1177               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1178               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1179               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1180               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1181               "<br/>\n" .
1182               "</div>\n";
1183         my %tag = git_read_tag($hash);
1184         print "<div>\n" .
1185               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1186               "</div>\n";
1187         print "<div class=\"title_text\">\n" .
1188               "<table cellspacing=\"0\">\n" .
1189               "<tr>\n" .
1190               "<td>object</td>\n" .
1191               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1192               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1193               "</tr>\n";
1194         if (defined($tag{'author'})) {
1195                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1196                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1197                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1198         }
1199         print "</table>\n\n" .
1200               "</div>\n";
1201         print "<div class=\"page_body\">";
1202         my $comment = $tag{'comment'};
1203         foreach my $line (@$comment) {
1204                 print esc_html($line) . "<br/>\n";
1205         }
1206         print "</div>\n";
1207         git_footer_html();
1208 }
1209
1210 sub git_tags {
1211         my $head = git_read_hash("$project/HEAD");
1212         git_header_html();
1213         print "<div class=\"page_nav\">\n" .
1214               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1215               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1216               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1217               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1218               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1219               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1220               "<br/>\n" .
1221               "</div>\n";
1222         my $taglist = git_read_refs("refs/tags");
1223         print "<div>\n" .
1224               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1225               "</div>\n";
1226         print "<table cellspacing=\"0\">\n";
1227         my $alternate = 0;
1228         if (defined @$taglist) {
1229                 foreach my $entry (@$taglist) {
1230                         my %tag = %$entry;
1231                         my $comment_lines = $tag{'comment'};
1232                         my $comment = shift @$comment_lines;
1233                         if (defined($comment)) {
1234                                 $comment = chop_str($comment, 30, 5);
1235                         }
1236                         if ($alternate) {
1237                                 print "<tr class=\"dark\">\n";
1238                         } else {
1239                                 print "<tr class=\"light\">\n";
1240                         }
1241                         $alternate ^= 1;
1242                         print "<td><i>$tag{'age'}</i></td>\n" .
1243                               "<td>" .
1244                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1245                               "<b>" . esc_html($tag{'name'}) . "</b>") .
1246                               "</td>\n" .
1247                               "<td>";
1248                         if (defined($comment)) {
1249                               print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1250                         }
1251                         print "</td>\n" .
1252                               "<td class=\"link\">";
1253                         if ($tag{'type'} eq "tag") {
1254                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1255                         }
1256                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1257                         if ($tag{'reftype'} eq "commit") {
1258                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1259                                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1260                         }
1261                         print "</td>\n" .
1262                               "</tr>";
1263                 }
1264         }
1265         print "</table\n>";
1266         git_footer_html();
1267 }
1268
1269 sub git_heads {
1270         my $head = git_read_hash("$project/HEAD");
1271         git_header_html();
1272         print "<div class=\"page_nav\">\n" .
1273               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1274               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1275               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1276               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1277               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1278               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1279               "<br/>\n" .
1280               "</div>\n";
1281         my $taglist = git_read_refs("refs/heads");
1282         print "<div>\n" .
1283               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1284               "</div>\n";
1285         print "<table cellspacing=\"0\">\n";
1286         my $alternate = 0;
1287         if (defined @$taglist) {
1288                 foreach my $entry (@$taglist) {
1289                         my %tag = %$entry;
1290                         if ($alternate) {
1291                                 print "<tr class=\"dark\">\n";
1292                         } else {
1293                                 print "<tr class=\"light\">\n";
1294                         }
1295                         $alternate ^= 1;
1296                         print "<td><i>$tag{'age'}</i></td>\n" .
1297                               "<td>" .
1298                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1299                               "</td>\n" .
1300                               "<td class=\"link\">" .
1301                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1302                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1303                               "</td>\n" .
1304                               "</tr>";
1305                 }
1306         }
1307         print "</table\n>";
1308         git_footer_html();
1309 }
1310
1311 sub git_get_hash_by_path {
1312         my $base = shift;
1313         my $path = shift || return undef;
1314
1315         my $tree = $base;
1316         my @parts = split '/', $path;
1317         while (my $part = shift @parts) {
1318                 open my $fd, "-|", "$gitbin/git-ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
1319                 my (@entries) = map { chomp; $_ } <$fd>;
1320                 close $fd or return undef;
1321                 foreach my $line (@entries) {
1322                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1323                         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1324                         my $t_mode = $1;
1325                         my $t_type = $2;
1326                         my $t_hash = $3;
1327                         my $t_name = validate_input(unquote($4));
1328                         if ($t_name eq $part) {
1329                                 if (!(@parts)) {
1330                                         return $t_hash;
1331                                 }
1332                                 if ($t_type eq "tree") {
1333                                         $tree = $t_hash;
1334                                 }
1335                                 last;
1336                         }
1337                 }
1338         }
1339 }
1340
1341 sub git_blob {
1342         if (!defined $hash && defined $file_name) {
1343                 my $base = $hash_base || git_read_hash("$project/HEAD");
1344                 $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
1345         }
1346         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or die_error(undef, "Open failed.");
1347         git_header_html();
1348         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1349                 print "<div class=\"page_nav\">\n" .
1350                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1351                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1352                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1353                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1354                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1355                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1356                 if (defined $file_name) {
1357                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1358                         " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
1359                 } else {
1360                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
1361                 }
1362                 print "</div>\n".
1363                        "<div>" .
1364                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1365                       "</div>\n";
1366         } else {
1367                 print "<div class=\"page_nav\">\n" .
1368                       "<br/><br/></div>\n" .
1369                       "<div class=\"title\">$hash</div>\n";
1370         }
1371         if (defined $file_name) {
1372                 print "<div class=\"page_path\"><b>" . esc_html($file_name) . "</b></div>\n";
1373         }
1374         print "<div class=\"page_body\">\n";
1375         my $nr;
1376         while (my $line = <$fd>) {
1377                 chomp $line;
1378                 $nr++;
1379                 while ((my $pos = index($line, "\t")) != -1) {
1380                         if (my $count = (8 - ($pos % 8))) {
1381                                 my $spaces = ' ' x $count;
1382                                 $line =~ s/\t/$spaces/;
1383                         }
1384                 }
1385                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1386         }
1387         close $fd or print "Reading blob failed.\n";
1388         print "</div>";
1389         git_footer_html();
1390 }
1391
1392 sub git_blob_plain {
1393         my $save_as = "$hash.txt";
1394         if (defined $file_name) {
1395                 $save_as = $file_name;
1396         }
1397         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"$save_as\"");
1398         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or return;
1399         undef $/;
1400         print <$fd>;
1401         $/ = "\n";
1402         close $fd;
1403 }
1404
1405 sub git_tree {
1406         if (!defined $hash) {
1407                 $hash = git_read_hash("$project/HEAD");
1408                 if (defined $file_name) {
1409                         my $base = $hash_base || git_read_hash("$project/HEAD");
1410                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1411                 }
1412                 if (!defined $hash_base) {
1413                         $hash_base = git_read_hash("$project/HEAD");
1414                 }
1415         }
1416         $/ = "\0";
1417         open my $fd, "-|", "$gitbin/git-ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
1418         chomp (my (@entries) = <$fd>);
1419         close $fd or die_error(undef, "Reading tree failed.");
1420         $/ = "\n";
1421
1422         my $refs = read_info_ref();
1423         my $ref = "";
1424         if (defined $refs->{$hash_base}) {
1425                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
1426         }
1427         git_header_html();
1428         my $base_key = "";
1429         my $base = "";
1430         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1431                 $base_key = ";hb=$hash_base";
1432                 print "<div class=\"page_nav\">\n" .
1433                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1434                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash_base")}, "shortlog") .
1435                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash_base")}, "log") .
1436                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1437                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1438                       " | tree" .
1439                       "<br/><br/>\n" .
1440                       "</div>\n";
1441                 print "<div>\n" .
1442                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1443                       "</div>\n";
1444         } else {
1445                 print "<div class=\"page_nav\">\n";
1446                 print "<br/><br/></div>\n";
1447                 print "<div class=\"title\">$hash</div>\n";
1448         }
1449         if (defined $file_name) {
1450                 $base = esc_html("$file_name/");
1451                 print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
1452         } else {
1453                 print "<div class=\"page_path\"><b>/</b></div>\n";
1454         }
1455         print "<div class=\"page_body\">\n";
1456         print "<table cellspacing=\"0\">\n";
1457         my $alternate = 0;
1458         foreach my $line (@entries) {
1459                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1460                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1461                 my $t_mode = $1;
1462                 my $t_type = $2;
1463                 my $t_hash = $3;
1464                 my $t_name = validate_input($4);
1465                 if ($alternate) {
1466                         print "<tr class=\"dark\">\n";
1467                 } else {
1468                         print "<tr class=\"light\">\n";
1469                 }
1470                 $alternate ^= 1;
1471                 print "<td style=\"font-family:monospace\">" . mode_str($t_mode) . "</td>\n";
1472                 if ($t_type eq "blob") {
1473                         print "<td class=\"list\">" .
1474                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1475                               "</td>\n" .
1476                               "<td class=\"link\">" .
1477                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1478                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash_base;f=$base$t_name")}, "history") .
1479                               "</td>\n";
1480                 } elsif ($t_type eq "tree") {
1481                         print "<td class=\"list\">" .
1482                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1483                               "</td>\n" .
1484                               "<td class=\"link\">" .
1485                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1486                               "</td>\n";
1487                 }
1488                 print "</tr>\n";
1489         }
1490         print "</table>\n" .
1491               "</div>";
1492         git_footer_html();
1493 }
1494
1495 sub git_rss {
1496         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1497         open my $fd, "-|", "$gitbin/git-rev-list --max-count=150 " . git_read_hash("$project/HEAD") or die_error(undef, "Open failed.");
1498         my (@revlist) = map { chomp; $_ } <$fd>;
1499         close $fd or die_error(undef, "Reading rev-list failed.");
1500         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1501         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1502               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1503         print "<channel>\n";
1504         print "<title>$project</title>\n".
1505               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1506               "<description>$project log</description>\n".
1507               "<language>en</language>\n";
1508
1509         for (my $i = 0; $i <= $#revlist; $i++) {
1510                 my $commit = $revlist[$i];
1511                 my %co = git_read_commit($commit);
1512                 # we read 150, we always show 30 and the ones more recent than 48 hours
1513                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1514                         last;
1515                 }
1516                 my %cd = date_str($co{'committer_epoch'});
1517                 open $fd, "-|", "$gitbin/git-diff-tree -r $co{'parent'} $co{'id'}" or next;
1518                 my @difftree = map { chomp; $_ } <$fd>;
1519                 close $fd or next;
1520                 print "<item>\n" .
1521                       "<title>" .
1522                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1523                       "</title>\n" .
1524                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1525                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1526                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1527                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1528                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1529                       "<content:encoded>" .
1530                       "<![CDATA[\n";
1531                 my $comment = $co{'comment'};
1532                 foreach my $line (@$comment) {
1533                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1534                         print "$line<br/>\n";
1535                 }
1536                 print "<br/>\n";
1537                 foreach my $line (@difftree) {
1538                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1539                                 next;
1540                         }
1541                         my $file = validate_input(unquote($7));
1542                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1543                         print "$file<br/>\n";
1544                 }
1545                 print "]]>\n" .
1546                       "</content:encoded>\n" .
1547                       "</item>\n";
1548         }
1549         print "</channel></rss>";
1550 }
1551
1552 sub git_opml {
1553         my @list = git_read_projects();
1554
1555         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1556         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1557               "<opml version=\"1.0\">\n".
1558               "<head>".
1559               "  <title>Git OPML Export</title>\n".
1560               "</head>\n".
1561               "<body>\n".
1562               "<outline text=\"git RSS feeds\">\n";
1563
1564         foreach my $pr (@list) {
1565                 my %proj = %$pr;
1566                 my $head = git_read_hash("$proj{'path'}/HEAD");
1567                 if (!defined $head) {
1568                         next;
1569                 }
1570                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1571                 my %co = git_read_commit($head);
1572                 if (!%co) {
1573                         next;
1574                 }
1575
1576                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1577                 my $rss =  "$my_url?p=$proj{'path'};a=rss";
1578                 my $html =  "$my_url?p=$proj{'path'};a=summary";
1579                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1580         }
1581         print "</outline>\n".
1582               "</body>\n".
1583               "</opml>\n";
1584 }
1585
1586 sub git_log {
1587         my $head = git_read_hash("$project/HEAD");
1588         if (!defined $hash) {
1589                 $hash = $head;
1590         }
1591         if (!defined $page) {
1592                 $page = 0;
1593         }
1594         my $refs = read_info_ref();
1595         git_header_html();
1596         print "<div class=\"page_nav\">\n";
1597         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1598               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1599               " | log" .
1600               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
1601               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
1602               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
1603
1604         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1605         open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
1606         my (@revlist) = map { chomp; $_ } <$fd>;
1607         close $fd;
1608
1609         if ($hash ne $head || $page) {
1610                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
1611         } else {
1612                 print "HEAD";
1613         }
1614         if ($page > 0) {
1615                 print " &sdot; " .
1616                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
1617         } else {
1618                 print " &sdot; prev";
1619         }
1620         if ($#revlist >= (100 * ($page+1)-1)) {
1621                 print " &sdot; " .
1622                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
1623         } else {
1624                 print " &sdot; next";
1625         }
1626         print "<br/>\n" .
1627               "</div>\n";
1628         if (!@revlist) {
1629                 print "<div>\n" .
1630                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1631                       "</div>\n";
1632                 my %co = git_read_commit($hash);
1633                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1634         }
1635         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1636                 my $commit = $revlist[$i];
1637                 my $ref = "";
1638                 if (defined $refs->{$commit}) {
1639                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1640                 }
1641                 my %co = git_read_commit($commit);
1642                 next if !%co;
1643                 my %ad = date_str($co{'author_epoch'});
1644                 print "<div>\n" .
1645                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1646                       "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1647                 print "</div>\n";
1648                 print "<div class=\"title_text\">\n" .
1649                       "<div class=\"log_link\">\n" .
1650                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1651                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1652                       "<br/>\n" .
1653                       "</div>\n" .
1654                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1655                       "</div>\n" .
1656                       "<div class=\"log_body\">\n";
1657                 my $comment = $co{'comment'};
1658                 my $empty = 0;
1659                 foreach my $line (@$comment) {
1660                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1661                                 next;
1662                         }
1663                         if ($line eq "") {
1664                                 if ($empty) {
1665                                         next;
1666                                 }
1667                                 $empty = 1;
1668                         } else {
1669                                 $empty = 0;
1670                         }
1671                         print format_log_line_html($line) . "<br/>\n";
1672                 }
1673                 if (!$empty) {
1674                         print "<br/>\n";
1675                 }
1676                 print "</div>\n";
1677         }
1678         git_footer_html();
1679 }
1680
1681 sub git_commit {
1682         my %co = git_read_commit($hash);
1683         if (!%co) {
1684                 die_error(undef, "Unknown commit object.");
1685         }
1686         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1687         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1688
1689         my @difftree;
1690         my $root = "";
1691         my $parent = $co{'parent'};
1692         if (!defined $parent) {
1693                 $root = " --root";
1694                 $parent = "";
1695         }
1696         open my $fd, "-|", "$gitbin/git-diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
1697         @difftree = map { chomp; $_ } <$fd>;
1698         close $fd or die_error(undef, "Reading diff-tree failed.");
1699
1700         # non-textual hash id's can be cached
1701         my $expires;
1702         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1703                 $expires = "+1d";
1704         }
1705         my $refs = read_info_ref();
1706         my $ref = "";
1707         if (defined $refs->{$hash}) {
1708                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash}) . "</span>";
1709         }
1710         git_header_html(undef, $expires);
1711         print "<div class=\"page_nav\">\n" .
1712               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1713               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1714               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
1715               " | commit";
1716         if (defined $co{'parent'}) {
1717                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
1718         }
1719         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
1720               "<br/><br/></div>\n";
1721         if (defined $co{'parent'}) {
1722                 print "<div>\n" .
1723                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1724                       "</div>\n";
1725         } else {
1726                 print "<div>\n" .
1727                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1728                       "</div>\n";
1729         }
1730         print "<div class=\"title_text\">\n" .
1731               "<table cellspacing=\"0\">\n";
1732         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
1733               "<tr>" .
1734               "<td></td><td> $ad{'rfc2822'}";
1735         if ($ad{'hour_local'} < 6) {
1736                 printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1737         } else {
1738                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1739         }
1740         print "</td>" .
1741               "</tr>\n";
1742         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
1743         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
1744         print "<tr><td>commit</td><td style=\"font-family:monospace\">$co{'id'}</td></tr>\n";
1745         print "<tr>" .
1746               "<td>tree</td>" .
1747               "<td style=\"font-family:monospace\">" .
1748               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
1749               "</td>" .
1750               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
1751               "</td>" .
1752               "</tr>\n";
1753         my $parents  = $co{'parents'};
1754         foreach my $par (@$parents) {
1755                 print "<tr>" .
1756                       "<td>parent</td>" .
1757                       "<td style=\"font-family:monospace\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
1758                       "<td class=\"link\">" .
1759                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
1760                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
1761                       "</td>" .
1762                       "</tr>\n";
1763         }
1764         print "</table>".
1765               "</div>\n";
1766         print "<div class=\"page_body\">\n";
1767         my $comment = $co{'comment'};
1768         my $empty = 0;
1769         my $signed = 0;
1770         foreach my $line (@$comment) {
1771                 # print only one empty line
1772                 if ($line eq "") {
1773                         if ($empty || $signed) {
1774                                 next;
1775                         }
1776                         $empty = 1;
1777                 } else {
1778                         $empty = 0;
1779                 }
1780                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1781                         $signed = 1;
1782                         print "<span style=\"color: #888888\">" . esc_html($line) . "</span><br/>\n";
1783                 } else {
1784                         $signed = 0;
1785                         print format_log_line_html($line) . "<br/>\n";
1786                 }
1787         }
1788         print "</div>\n";
1789         print "<div class=\"list_head\">\n";
1790         if ($#difftree > 10) {
1791                 print(($#difftree + 1) . " files changed:\n");
1792         }
1793         print "</div>\n";
1794         print "<table cellspacing=\"0\">\n";
1795         my $alternate = 0;
1796         foreach my $line (@difftree) {
1797                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1798                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1799                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1800                         next;
1801                 }
1802                 my $from_mode = $1;
1803                 my $to_mode = $2;
1804                 my $from_id = $3;
1805                 my $to_id = $4;
1806                 my $status = $5;
1807                 my $similarity = $6;
1808                 my $file = validate_input(unquote($7));
1809                 if ($alternate) {
1810                         print "<tr class=\"dark\">\n";
1811                 } else {
1812                         print "<tr class=\"light\">\n";
1813                 }
1814                 $alternate ^= 1;
1815                 if ($status eq "A") {
1816                         my $mode_chng = "";
1817                         if (S_ISREG(oct $to_mode)) {
1818                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1819                         }
1820                         print "<td>" .
1821                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
1822                               "<td><span style=\"color: #008000;\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1823                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
1824                 } elsif ($status eq "D") {
1825                         print "<td>" .
1826                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
1827                               "<td><span style=\"color: #c00000;\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1828                               "<td class=\"link\">" .
1829                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
1830                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") .
1831                               "</td>\n"
1832                 } elsif ($status eq "M" || $status eq "T") {
1833                         my $mode_chnge = "";
1834                         if ($from_mode != $to_mode) {
1835                                 $mode_chnge = " <span style=\"color: #777777;\">[changed";
1836                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1837                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1838                                 }
1839                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1840                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1841                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1842                                         } elsif (S_ISREG($to_mode)) {
1843                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1844                                         }
1845                                 }
1846                                 $mode_chnge .= "]</span>\n";
1847                         }
1848                         print "<td>";
1849                         if ($to_id ne $from_id) {
1850                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
1851                         } else {
1852                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
1853                         }
1854                         print "</td>\n" .
1855                               "<td>$mode_chnge</td>\n" .
1856                               "<td class=\"link\">";
1857                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
1858                         if ($to_id ne $from_id) {
1859                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
1860                         }
1861                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") . "\n";
1862                         print "</td>\n";
1863                 } elsif ($status eq "R") {
1864                         my ($from_file, $to_file) = split "\t", $file;
1865                         my $mode_chng = "";
1866                         if ($from_mode != $to_mode) {
1867                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1868                         }
1869                         print "<td>" .
1870                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
1871                               "<td><span style=\"color: #777777;\">[moved from " .
1872                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
1873                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1874                               "<td class=\"link\">" .
1875                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
1876                         if ($to_id ne $from_id) {
1877                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
1878                         }
1879                         print "</td>\n";
1880                 }
1881                 print "</tr>\n";
1882         }
1883         print "</table>\n";
1884         git_footer_html();
1885 }
1886
1887 sub git_blobdiff {
1888         mkdir($git_temp, 0700);
1889         git_header_html();
1890         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1891                 print "<div class=\"page_nav\">\n" .
1892                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1893                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1894                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1895                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1896                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1897                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
1898                       "<br/>\n";
1899                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain") .
1900                       "</div>\n";
1901                 print "<div>\n" .
1902                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1903                       "</div>\n";
1904         } else {
1905                 print "<div class=\"page_nav\">\n" .
1906                       "<br/><br/></div>\n" .
1907                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
1908         }
1909         if (defined $file_name) {
1910                 print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
1911         }
1912         print "<div class=\"page_body\">\n" .
1913               "<div class=\"diff_info\">blob:" .
1914               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
1915               " -> blob:" .
1916               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
1917               "</div>\n";
1918         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
1919         print "</div>";
1920         git_footer_html();
1921 }
1922
1923 sub git_blobdiff_plain {
1924         mkdir($git_temp, 0700);
1925         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
1926         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
1927 }
1928
1929 sub git_commitdiff {
1930         mkdir($git_temp, 0700);
1931         my %co = git_read_commit($hash);
1932         if (!%co) {
1933                 die_error(undef, "Unknown commit object.");
1934         }
1935         if (!defined $hash_parent) {
1936                 $hash_parent = $co{'parent'};
1937         }
1938         open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
1939         my (@difftree) = map { chomp; $_ } <$fd>;
1940         close $fd or die_error(undef, "Reading diff-tree failed.");
1941
1942         # non-textual hash id's can be cached
1943         my $expires;
1944         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1945                 $expires = "+1d";
1946         }
1947         my $refs = read_info_ref();
1948         my $ref = "";
1949         if (defined $refs->{$hash}) {
1950                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash}) . "</span>";
1951         }
1952         git_header_html(undef, $expires);
1953         print "<div class=\"page_nav\">\n" .
1954               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1955               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1956               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
1957               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
1958               " | commitdiff" .
1959               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "<br/>\n";
1960         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain") . "\n" .
1961               "</div>\n";
1962         print "<div>\n" .
1963               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1964               "</div>\n";
1965         print "<div class=\"page_body\">\n";
1966         my $comment = $co{'comment'};
1967         my $empty = 0;
1968         my $signed = 0;
1969         my @log = @$comment;
1970         # remove first and empty lines after that
1971         shift @log;
1972         while (defined $log[0] && $log[0] eq "") {
1973                 shift @log;
1974         }
1975         foreach my $line (@log) {
1976                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1977                         next;
1978                 }
1979                 if ($line eq "") {
1980                         if ($empty) {
1981                                 next;
1982                         }
1983                         $empty = 1;
1984                 } else {
1985                         $empty = 0;
1986                 }
1987                 print format_log_line_html($line) . "<br/>\n";
1988         }
1989         print "<br/>\n";
1990         foreach my $line (@difftree) {
1991                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1992                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1993                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
1994                 my $from_mode = $1;
1995                 my $to_mode = $2;
1996                 my $from_id = $3;
1997                 my $to_id = $4;
1998                 my $status = $5;
1999                 my $file = validate_input(unquote($6));
2000                 if ($status eq "A") {
2001                         print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
2002                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2003                               "</div>\n";
2004                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2005                 } elsif ($status eq "D") {
2006                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2007                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2008                               "</div>\n";
2009                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2010                 } elsif ($status eq "M") {
2011                         if ($from_id ne $to_id) {
2012                                 print "<div class=\"diff_info\">" .
2013                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2014                                       " -> " .
2015                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2016                                 print "</div>\n";
2017                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2018                         }
2019                 }
2020         }
2021         print "<br/>\n" .
2022               "</div>";
2023         git_footer_html();
2024 }
2025
2026 sub git_commitdiff_plain {
2027         mkdir($git_temp, 0700);
2028         open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
2029         my (@difftree) = map { chomp; $_ } <$fd>;
2030         close $fd or die_error(undef, "Reading diff-tree failed.");
2031
2032         # try to figure out the next tag after this commit
2033         my $tagname;
2034         my $refs = read_info_ref("tags");
2035         open $fd, "-|", "$gitbin/git-rev-list HEAD";
2036         chomp (my (@commits) = <$fd>);
2037         close $fd;
2038         foreach my $commit (@commits) {
2039                 if (defined $refs->{$commit}) {
2040                         $tagname = $refs->{$commit}
2041                 }
2042                 if ($commit eq $hash) {
2043                         last;
2044                 }
2045         }
2046
2047         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2048         my %co = git_read_commit($hash);
2049         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2050         my $comment = $co{'comment'};
2051         print "From: $co{'author'}\n" .
2052               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2053               "Subject: $co{'title'}\n";
2054         if (defined $tagname) {
2055               print "X-Git-Tag: $tagname\n";
2056         }
2057         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2058               "\n";
2059
2060         foreach my $line (@$comment) {;
2061                 print "$line\n";
2062         }
2063         print "---\n\n";
2064
2065         foreach my $line (@difftree) {
2066                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2067                 my $from_id = $3;
2068                 my $to_id = $4;
2069                 my $status = $5;
2070                 my $file = $6;
2071                 if ($status eq "A") {
2072                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2073                 } elsif ($status eq "D") {
2074                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2075                 } elsif ($status eq "M") {
2076                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2077                 }
2078         }
2079 }
2080
2081 sub git_history {
2082         if (!defined $hash) {
2083                 $hash = git_read_hash("$project/HEAD");
2084         }
2085         my %co = git_read_commit($hash);
2086         if (!%co) {
2087                 die_error(undef, "Unknown commit object.");
2088         }
2089         my $refs = read_info_ref();
2090         git_header_html();
2091         print "<div class=\"page_nav\">\n" .
2092               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2093               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2094               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
2095               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2096               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2097               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2098               "<br/><br/>\n" .
2099               "</div>\n";
2100         print "<div>\n" .
2101               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2102               "</div>\n";
2103         print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b><br/></div>\n";
2104
2105         open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin \'$file_name\'";
2106         my $commit;
2107         print "<table cellspacing=\"0\">\n";
2108         my $alternate = 0;
2109         while (my $line = <$fd>) {
2110                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2111                         $commit = $1;
2112                         next;
2113                 }
2114                 if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/ && (defined $commit)) {
2115                         my %co = git_read_commit($commit);
2116                         if (!%co) {
2117                                 next;
2118                         }
2119                         my $ref = "";
2120                         if (defined $refs->{$commit}) {
2121                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2122                         }
2123                         if ($alternate) {
2124                                 print "<tr class=\"dark\">\n";
2125                         } else {
2126                                 print "<tr class=\"light\">\n";
2127                         }
2128                         $alternate ^= 1;
2129                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2130                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2131                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2132                               esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
2133                               "<td class=\"link\">" .
2134                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2135                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2136                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2137                         my $blob = git_get_hash_by_path($hash, $file_name);
2138                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2139                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2140                                 print " | " .
2141                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2142                                 "diff to current");
2143                         }
2144                         print "</td>\n" .
2145                               "</tr>\n";
2146                         undef $commit;
2147                 }
2148         }
2149         print "</table>\n";
2150         close $fd;
2151         git_footer_html();
2152 }
2153
2154 sub git_search {
2155         if (!defined $searchtext) {
2156                 die_error("", "Text field empty.");
2157         }
2158         if (!defined $hash) {
2159                 $hash = git_read_hash("$project/HEAD");
2160         }
2161         my %co = git_read_commit($hash);
2162         if (!%co) {
2163                 die_error(undef, "Unknown commit object.");
2164         }
2165         # pickaxe may take all resources of your box and run for several minutes
2166         # with every query - so decide by yourself how public you make this feature :)
2167         my $commit_search = 1;
2168         my $author_search = 0;
2169         my $committer_search = 0;
2170         my $pickaxe_search = 0;
2171         if ($searchtext =~ s/^author\\://i) {
2172                 $author_search = 1;
2173         } elsif ($searchtext =~ s/^committer\\://i) {
2174                 $committer_search = 1;
2175         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2176                 $commit_search = 0;
2177                 $pickaxe_search = 1;
2178         }
2179         git_header_html();
2180         print "<div class=\"page_nav\">\n" .
2181               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary;h=$hash")}, "summary") .
2182               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2183               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2184               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2185               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2186               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2187               "<br/><br/>\n" .
2188               "</div>\n";
2189
2190         print "<div>\n" .
2191               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2192               "</div>\n";
2193         print "<table cellspacing=\"0\">\n";
2194         my $alternate = 0;
2195         if ($commit_search) {
2196                 $/ = "\0";
2197                 open my $fd, "-|", "$gitbin/git-rev-list --header --parents $hash" or next;
2198                 while (my $commit_text = <$fd>) {
2199                         if (!grep m/$searchtext/i, $commit_text) {
2200                                 next;
2201                         }
2202                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2203                                 next;
2204                         }
2205                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2206                                 next;
2207                         }
2208                         my @commit_lines = split "\n", $commit_text;
2209                         my %co = git_read_commit(undef, \@commit_lines);
2210                         if (!%co) {
2211                                 next;
2212                         }
2213                         if ($alternate) {
2214                                 print "<tr class=\"dark\">\n";
2215                         } else {
2216                                 print "<tr class=\"light\">\n";
2217                         }
2218                         $alternate ^= 1;
2219                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2220                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2221                               "<td>" .
2222                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2223                         my $comment = $co{'comment'};
2224                         foreach my $line (@$comment) {
2225                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2226                                         my $lead = esc_html($1) || "";
2227                                         $lead = chop_str($lead, 30, 10);
2228                                         my $match = esc_html($2) || "";
2229                                         my $trail = esc_html($3) || "";
2230                                         $trail = chop_str($trail, 30, 10);
2231                                         my $text = "$lead<span style=\"color:#e00000\">$match</span>$trail";
2232                                         print chop_str($text, 80, 5) . "<br/>\n";
2233                                 }
2234                         }
2235                         print "</td>\n" .
2236                               "<td class=\"link\">" .
2237                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2238                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2239                         print "</td>\n" .
2240                               "</tr>\n";
2241                 }
2242                 close $fd;
2243         }
2244
2245         if ($pickaxe_search) {
2246                 $/ = "\n";
2247                 open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -S\'$searchtext\'";
2248                 undef %co;
2249                 my @files;
2250                 while (my $line = <$fd>) {
2251                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2252                                 my %set;
2253                                 $set{'file'} = $6;
2254                                 $set{'from_id'} = $3;
2255                                 $set{'to_id'} = $4;
2256                                 $set{'id'} = $set{'to_id'};
2257                                 if ($set{'id'} =~ m/0{40}/) {
2258                                         $set{'id'} = $set{'from_id'};
2259                                 }
2260                                 if ($set{'id'} =~ m/0{40}/) {
2261                                         next;
2262                                 }
2263                                 push @files, \%set;
2264                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2265                                 if (%co) {
2266                                         if ($alternate) {
2267                                                 print "<tr class=\"dark\">\n";
2268                                         } else {
2269                                                 print "<tr class=\"light\">\n";
2270                                         }
2271                                         $alternate ^= 1;
2272                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2273                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2274                                               "<td>" .
2275                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2276                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2277                                         while (my $setref = shift @files) {
2278                                                 my %set = %$setref;
2279                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2280                                                       "<span style=\"color:#e00000\">" . esc_html($set{'file'}) . "</span>") .
2281                                                       "<br/>\n";
2282                                         }
2283                                         print "</td>\n" .
2284                                               "<td class=\"link\">" .
2285                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2286                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2287                                         print "</td>\n" .
2288                                               "</tr>\n";
2289                                 }
2290                                 %co = git_read_commit($1);
2291                         }
2292                 }
2293                 close $fd;
2294         }
2295         print "</table>\n";
2296         git_footer_html();
2297 }
2298
2299 sub git_shortlog {
2300         my $head = git_read_hash("$project/HEAD");
2301         if (!defined $hash) {
2302                 $hash = $head;
2303         }
2304         if (!defined $page) {
2305                 $page = 0;
2306         }
2307         my $refs = read_info_ref();
2308         git_header_html();
2309         print "<div class=\"page_nav\">\n" .
2310               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2311               " | shortlog" .
2312               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2313               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2314               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2315               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
2316
2317         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2318         open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
2319         my (@revlist) = map { chomp; $_ } <$fd>;
2320         close $fd;
2321
2322         if ($hash ne $head || $page) {
2323                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
2324         } else {
2325                 print "HEAD";
2326         }
2327         if ($page > 0) {
2328                 print " &sdot; " .
2329                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
2330         } else {
2331                 print " &sdot; prev";
2332         }
2333         if ($#revlist >= (100 * ($page+1)-1)) {
2334                 print " &sdot; " .
2335                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
2336         } else {
2337                 print " &sdot; next";
2338         }
2339         print "<br/>\n" .
2340               "</div>\n";
2341         print "<div>\n" .
2342               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2343               "</div>\n";
2344         print "<table cellspacing=\"0\">\n";
2345         my $alternate = 0;
2346         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2347                 my $commit = $revlist[$i];
2348                 my $ref = "";
2349                 if (defined $refs->{$commit}) {
2350                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2351                 }
2352                 my %co = git_read_commit($commit);
2353                 my %ad = date_str($co{'author_epoch'});
2354                 if ($alternate) {
2355                         print "<tr class=\"dark\">\n";
2356                 } else {
2357                         print "<tr class=\"light\">\n";
2358                 }
2359                 $alternate ^= 1;
2360                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2361                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2362                       "<td>";
2363                 if (length($co{'title_short'}) < length($co{'title'})) {
2364                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2365                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2366                 } else {
2367                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2368                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2369                 }
2370                 print "</td>\n" .
2371                       "<td class=\"link\">" .
2372                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2373                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2374                       "</td>\n" .
2375                       "</tr>";
2376         }
2377         if ($#revlist >= (100 * ($page+1)-1)) {
2378                 print "<tr>\n" .
2379                       "<td>" .
2380                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2381                       "</td>\n" .
2382                       "</tr>\n";
2383         }
2384         print "</table\n>";
2385         git_footer_html();
2386 }