gitweb/gitweb.cgi

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 binmode STDOUT, ':utf8';
  18
  19 our $cgi = new CGI;
  20 our $version = "267";
  21 our $my_url = $cgi->url();
  22 our $my_uri = $cgi->url(-absolute => 1);
  23 our $rss_link = "";
  24
  25 # core git executable to use
  26 # this can just be "git" if your webserver has a sensible PATH
  27 our $GIT = "/usr/bin/git";
  28
  29 # absolute fs-path which will be prepended to the project path
  30 #our $projectroot = "/pub/scm";
  31 our $projectroot = "/home/kay/public_html/pub/scm";
  32
  33 # version of the core git binary
  34 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
  35
  36 # location for temporary files needed for diffs
  37 our $git_temp = "/tmp/gitweb";
  38 if (! -d $git_temp) {
  39         mkdir($git_temp, 0700) || die_error("Couldn't mkdir $git_temp");
  40 }
  41
  42 # target of the home link on top of all pages
  43 our $home_link = $my_uri;
  44
  45 # name of your site or organization to appear in page titles
  46 # replace this with something more descriptive for clearer bookmarks
  47 our $site_name = $ENV{'SERVER_NAME'} || "Untitled";
  48
  49 # html text to include at home page
  50 our $home_text = "indextext.html";
  51
  52 # URI of default stylesheet
  53 our $stylesheet = "gitweb.css";
  54
  55 # source of projects list
  56 #our $projects_list = $projectroot;
  57 our $projects_list = "index/index.aux";
  58
  59 # default blob_plain mimetype and default charset for text/plain blob
  60 our $default_blob_plain_mimetype = 'text/plain';
  61 our $default_text_plain_charset  = undef;
  62
  63 # file to use for guessing MIME types before trying /etc/mime.types
  64 # (relative to the current git repository)
  65 our $mimetypes_file = undef;
  66
  67 # input validation and dispatch
  68 our $action = $cgi->param('a');
  69 if (defined $action) {
  70         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  71                 undef $action;
  72                 die_error(undef, "Invalid action parameter.");
  73         }
  74         if ($action eq "git-logo.png") {
  75                 git_logo();
  76                 exit;
  77         } elsif ($action eq "opml") {
  78                 git_opml();
  79                 exit;
  80         }
  81 }
  82
  83 our $order = $cgi->param('o');
  84 if (defined $order) {
  85         if ($order =~ m/[^0-9a-zA-Z_]/) {
  86                 undef $order;
  87                 die_error(undef, "Invalid order parameter.");
  88         }
  89 }
  90
  91 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
  92 if (defined $project) {
  93         $project =~ s|^/||; $project =~ s|/$||;
  94         $project = validate_input($project);
  95         if (!defined($project)) {
  96                 die_error(undef, "Invalid project parameter.");
  97         }
  98         if (!(-d "$projectroot/$project")) {
  99                 undef $project;
 100                 die_error(undef, "No such directory.");
 101         }
 102         if (!(-e "$projectroot/$project/HEAD")) {
 103                 undef $project;
 104                 die_error(undef, "No such project.");
 105         }
 106         $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
 107                     "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
 108         $ENV{'GIT_DIR'} = "$projectroot/$project";
 109 } else {
 110         git_project_list();
 111         exit;
 112 }
 113
 114 our $file_name = $cgi->param('f');
 115 if (defined $file_name) {
 116         $file_name = validate_input($file_name);
 117         if (!defined($file_name)) {
 118                 die_error(undef, "Invalid file parameter.");
 119         }
 120 }
 121
 122 our $hash = $cgi->param('h');
 123 if (defined $hash) {
 124         $hash = validate_input($hash);
 125         if (!defined($hash)) {
 126                 die_error(undef, "Invalid hash parameter.");
 127         }
 128 }
 129
 130 our $hash_parent = $cgi->param('hp');
 131 if (defined $hash_parent) {
 132         $hash_parent = validate_input($hash_parent);
 133         if (!defined($hash_parent)) {
 134                 die_error(undef, "Invalid hash parent parameter.");
 135         }
 136 }
 137
 138 our $hash_base = $cgi->param('hb');
 139 if (defined $hash_base) {
 140         $hash_base = validate_input($hash_base);
 141         if (!defined($hash_base)) {
 142                 die_error(undef, "Invalid hash base parameter.");
 143         }
 144 }
 145
 146 our $page = $cgi->param('pg');
 147 if (defined $page) {
 148         if ($page =~ m/[^0-9]$/) {
 149                 undef $page;
 150                 die_error(undef, "Invalid page parameter.");
 151         }
 152 }
 153
 154 our $searchtext = $cgi->param('s');
 155 if (defined $searchtext) {
 156         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 157                 undef $searchtext;
 158                 die_error(undef, "Invalid search parameter.");
 159         }
 160         $searchtext = quotemeta $searchtext;
 161 }
 162
 163 sub validate_input {
 164         my $input = shift;
 165
 166         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 167                 return $input;
 168         }
 169         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 170                 return undef;
 171         }
 172         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 173                 return undef;
 174         }
 175         return $input;
 176 }
 177
 178 if (!defined $action || $action eq "summary") {
 179         git_summary();
 180         exit;
 181 } elsif ($action eq "heads") {
 182         git_heads();
 183         exit;
 184 } elsif ($action eq "tags") {
 185         git_tags();
 186         exit;
 187 } elsif ($action eq "blob") {
 188         git_blob();
 189         exit;
 190 } elsif ($action eq "blob_plain") {
 191         git_blob_plain();
 192         exit;
 193 } elsif ($action eq "tree") {
 194         git_tree();
 195         exit;
 196 } elsif ($action eq "rss") {
 197         git_rss();
 198         exit;
 199 } elsif ($action eq "commit") {
 200         git_commit();
 201         exit;
 202 } elsif ($action eq "log") {
 203         git_log();
 204         exit;
 205 } elsif ($action eq "blobdiff") {
 206         git_blobdiff();
 207         exit;
 208 } elsif ($action eq "blobdiff_plain") {
 209         git_blobdiff_plain();
 210         exit;
 211 } elsif ($action eq "commitdiff") {
 212         git_commitdiff();
 213         exit;
 214 } elsif ($action eq "commitdiff_plain") {
 215         git_commitdiff_plain();
 216         exit;
 217 } elsif ($action eq "history") {
 218         git_history();
 219         exit;
 220 } elsif ($action eq "search") {
 221         git_search();
 222         exit;
 223 } elsif ($action eq "shortlog") {
 224         git_shortlog();
 225         exit;
 226 } elsif ($action eq "tag") {
 227         git_tag();
 228         exit;
 229 } elsif ($action eq "blame") {
 230         git_blame2();
 231         exit;
 232 } else {
 233         undef $action;
 234         die_error(undef, "Unknown action.");
 235         exit;
 236 }
 237
 238 # quote unsafe chars, but keep the slash, even when it's not
 239 # correct, but quoted slashes look too horrible in bookmarks
 240 sub esc_param {
 241         my $str = shift;
 242         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 243         $str =~ s/\+/%2B/g;
 244         $str =~ s/ /\+/g;
 245         return $str;
 246 }
 247
 248 # replace invalid utf8 character with SUBSTITUTION sequence
 249 sub esc_html {
 250         my $str = shift;
 251         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 252         $str = escapeHTML($str);
 253         return $str;
 254 }
 255
 256 # git may return quoted and escaped filenames
 257 sub unquote {
 258         my $str = shift;
 259         if ($str =~ m/^"(.*)"$/) {
 260                 $str = $1;
 261                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 262         }
 263         return $str;
 264 }
 265
 266 # CSS class for given age value (in seconds)
 267 sub age_class {
 268         my $age = shift;
 269
 270         if ($age < 60*60*2) {
 271                 return "age0";
 272         } elsif ($age < 60*60*24*2) {
 273                 return "age1";
 274         } else {
 275                 return "age2";
 276         }
 277 }
 278
 279 sub git_header_html {
 280         my $status = shift || "200 OK";
 281         my $expires = shift;
 282
 283         my $title = "$site_name git";
 284         if (defined $project) {
 285                 $title .= " - $project";
 286                 if (defined $action) {
 287                         $title .= "/$action";
 288                         if (defined $file_name) {
 289                                 $title .= " - $file_name";
 290                                 if ($action eq "tree" && $file_name !~ m|/$|) {
 291                                         $title .= "/";
 292                                 }
 293                         }
 294                 }
 295         }
 296         my $content_type;
 297         # require explicit support from the UA if we are to send the page as
 298         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 299         # we have to do this because MSIE sometimes globs '*/*', pretending to
 300         # support xhtml+xml but choking when it gets what it asked for.
 301         if ($cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
 302                 $content_type = 'application/xhtml+xml';
 303         } else {
 304                 $content_type = 'text/html';
 305         }
 306         print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
 307         print <<EOF;
 308 <?xml version="1.0" encoding="utf-8"?>
 309 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 310 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 311 <!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
 312 <!-- git core binaries version $git_version -->
 313 <head>
 314 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
 315 <meta name="robots" content="index, nofollow"/>
 316 <title>$title</title>
 317 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
 318 $rss_link
 319 </head>
 320 <body>
 321 EOF
 322         print "<div class=\"page_header\">\n" .
 323               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 324               "<img src=\"$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_base) {
 338                         $search_hash = $hash_base;
 339                 } elsif (defined $hash) {
 340                         $search_hash = $hash;
 341                 } else {
 342                         $search_hash = "HEAD";
 343                 }
 344                 $cgi->param("a", "search");
 345                 $cgi->param("h", $search_hash);
 346                 print $cgi->startform(-method => "get", -action => $my_uri) .
 347                       "<div class=\"search\">\n" .
 348                       $cgi->hidden(-name => "p") . "\n" .
 349                       $cgi->hidden(-name => "a") . "\n" .
 350                       $cgi->hidden(-name => "h") . "\n" .
 351                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 352                       "</div>" .
 353                       $cgi->end_form() . "\n";
 354         }
 355         print "</div>\n";
 356 }
 357
 358 sub git_footer_html {
 359         print "<div class=\"page_footer\">\n";
 360         if (defined $project) {
 361                 my $descr = git_read_description($project);
 362                 if (defined $descr) {
 363                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 364                 }
 365                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
 366         } else {
 367                 print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
 368         }
 369         print "</div>\n" .
 370               "</body>\n" .
 371               "</html>";
 372 }
 373
 374 sub die_error {
 375         my $status = shift || "403 Forbidden";
 376         my $error = shift || "Malformed query, file missing or permission denied";
 377
 378         git_header_html($status);
 379         print "<div class=\"page_body\">\n" .
 380               "<br/><br/>\n" .
 381               "$status - $error\n" .
 382               "<br/>\n" .
 383               "</div>\n";
 384         git_footer_html();
 385         exit;
 386 }
 387
 388 sub git_page_nav {
 389         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
 390         $extra = '' if !defined $extra; # pager or formats
 391
 392         my @navs = qw(summary shortlog log commit commitdiff tree);
 393         if ($suppress) {
 394                 @navs = grep { $_ ne $suppress } @navs;
 395         }
 396
 397         my %arg = map { $_, ''} @navs;
 398         if (defined $head) {
 399                 for (qw(commit commitdiff)) {
 400                         $arg{$_} = ";h=$head";
 401                 }
 402                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
 403                         for (qw(shortlog log)) {
 404                                 $arg{$_} = ";h=$head";
 405                         }
 406                 }
 407         }
 408         $arg{tree} .= ";h=$treehead" if defined $treehead;
 409         $arg{tree} .= ";hb=$treebase" if defined $treebase;
 410
 411         print "<div class=\"page_nav\">\n" .
 412                 (join " | ",
 413                  map { $_ eq $current
 414                                          ? $_
 415                                          : $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$_$arg{$_}")}, "$_")
 416                                  }
 417                  @navs);
 418         print "<br/>$extra<br/>\n" .
 419               "</div>\n";
 420 }
 421
 422 sub git_get_type {
 423         my $hash = shift;
 424
 425         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 426         my $type = <$fd>;
 427         close $fd or return;
 428         chomp $type;
 429         return $type;
 430 }
 431
 432 sub git_read_head {
 433         my $project = shift;
 434         my $oENV = $ENV{'GIT_DIR'};
 435         my $retval = undef;
 436         $ENV{'GIT_DIR'} = "$projectroot/$project";
 437         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 438                 my $head = <$fd>;
 439                 close $fd;
 440                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 441                         $retval = $1;
 442                 }
 443         }
 444         if (defined $oENV) {
 445                 $ENV{'GIT_DIR'} = $oENV;
 446         }
 447         return $retval;
 448 }
 449
 450 sub git_read_hash {
 451         my $path = shift;
 452
 453         open my $fd, "$projectroot/$path" or return undef;
 454         my $head = <$fd>;
 455         close $fd;
 456         chomp $head;
 457         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 458                 return $head;
 459         }
 460 }
 461
 462 sub git_read_description {
 463         my $path = shift;
 464
 465         open my $fd, "$projectroot/$path/description" or return undef;
 466         my $descr = <$fd>;
 467         close $fd;
 468         chomp $descr;
 469         return $descr;
 470 }
 471
 472 sub git_read_tag {
 473         my $tag_id = shift;
 474         my %tag;
 475         my @comment;
 476
 477         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 478         $tag{'id'} = $tag_id;
 479         while (my $line = <$fd>) {
 480                 chomp $line;
 481                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 482                         $tag{'object'} = $1;
 483                 } elsif ($line =~ m/^type (.+)$/) {
 484                         $tag{'type'} = $1;
 485                 } elsif ($line =~ m/^tag (.+)$/) {
 486                         $tag{'name'} = $1;
 487                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 488                         $tag{'author'} = $1;
 489                         $tag{'epoch'} = $2;
 490                         $tag{'tz'} = $3;
 491                 } elsif ($line =~ m/--BEGIN/) {
 492                         push @comment, $line;
 493                         last;
 494                 } elsif ($line eq "") {
 495                         last;
 496                 }
 497         }
 498         push @comment, <$fd>;
 499         $tag{'comment'} = \@comment;
 500         close $fd or return;
 501         if (!defined $tag{'name'}) {
 502                 return
 503         };
 504         return %tag
 505 }
 506
 507 sub age_string {
 508         my $age = shift;
 509         my $age_str;
 510
 511         if ($age > 60*60*24*365*2) {
 512                 $age_str = (int $age/60/60/24/365);
 513                 $age_str .= " years ago";
 514         } elsif ($age > 60*60*24*(365/12)*2) {
 515                 $age_str = int $age/60/60/24/(365/12);
 516                 $age_str .= " months ago";
 517         } elsif ($age > 60*60*24*7*2) {
 518                 $age_str = int $age/60/60/24/7;
 519                 $age_str .= " weeks ago";
 520         } elsif ($age > 60*60*24*2) {
 521                 $age_str = int $age/60/60/24;
 522                 $age_str .= " days ago";
 523         } elsif ($age > 60*60*2) {
 524                 $age_str = int $age/60/60;
 525                 $age_str .= " hours ago";
 526         } elsif ($age > 60*2) {
 527                 $age_str = int $age/60;
 528                 $age_str .= " min ago";
 529         } elsif ($age > 2) {
 530                 $age_str = int $age;
 531                 $age_str .= " sec ago";
 532         } else {
 533                 $age_str .= " right now";
 534         }
 535         return $age_str;
 536 }
 537
 538 sub git_read_commit {
 539         my $commit_id = shift;
 540         my $commit_text = shift;
 541
 542         my @commit_lines;
 543         my %co;
 544
 545         if (defined $commit_text) {
 546                 @commit_lines = @$commit_text;
 547         } else {
 548                 $/ = "\0";
 549                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 550                 @commit_lines = split '\n', <$fd>;
 551                 close $fd or return;
 552                 $/ = "\n";
 553                 pop @commit_lines;
 554         }
 555         my $header = shift @commit_lines;
 556         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 557                 return;
 558         }
 559         ($co{'id'}, my @parents) = split ' ', $header;
 560         $co{'parents'} = \@parents;
 561         $co{'parent'} = $parents[0];
 562         while (my $line = shift @commit_lines) {
 563                 last if $line eq "\n";
 564                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 565                         $co{'tree'} = $1;
 566                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 567                         $co{'author'} = $1;
 568                         $co{'author_epoch'} = $2;
 569                         $co{'author_tz'} = $3;
 570                         if ($co{'author'} =~ m/^([^<]+) </) {
 571                                 $co{'author_name'} = $1;
 572                         } else {
 573                                 $co{'author_name'} = $co{'author'};
 574                         }
 575                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 576                         $co{'committer'} = $1;
 577                         $co{'committer_epoch'} = $2;
 578                         $co{'committer_tz'} = $3;
 579                         $co{'committer_name'} = $co{'committer'};
 580                         $co{'committer_name'} =~ s/ <.*//;
 581                 }
 582         }
 583         if (!defined $co{'tree'}) {
 584                 return;
 585         };
 586
 587         foreach my $title (@commit_lines) {
 588                 $title =~ s/^    //;
 589                 if ($title ne "") {
 590                         $co{'title'} = chop_str($title, 80, 5);
 591                         # remove leading stuff of merges to make the interesting part visible
 592                         if (length($title) > 50) {
 593                                 $title =~ s/^Automatic //;
 594                                 $title =~ s/^merge (of|with) /Merge ... /i;
 595                                 if (length($title) > 50) {
 596                                         $title =~ s/(http|rsync):\/\///;
 597                                 }
 598                                 if (length($title) > 50) {
 599                                         $title =~ s/(master|www|rsync)\.//;
 600                                 }
 601                                 if (length($title) > 50) {
 602                                         $title =~ s/kernel.org:?//;
 603                                 }
 604                                 if (length($title) > 50) {
 605                                         $title =~ s/\/pub\/scm//;
 606                                 }
 607                         }
 608                         $co{'title_short'} = chop_str($title, 50, 5);
 609                         last;
 610                 }
 611         }
 612         # remove added spaces
 613         foreach my $line (@commit_lines) {
 614                 $line =~ s/^    //;
 615         }
 616         $co{'comment'} = \@commit_lines;
 617
 618         my $age = time - $co{'committer_epoch'};
 619         $co{'age'} = $age;
 620         $co{'age_string'} = age_string($age);
 621         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 622         if ($age > 60*60*24*7*2) {
 623                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 624                 $co{'age_string_age'} = $co{'age_string'};
 625         } else {
 626                 $co{'age_string_date'} = $co{'age_string'};
 627                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 628         }
 629         return %co;
 630 }
 631
 632 sub git_diff_print {
 633         my $from = shift;
 634         my $from_name = shift;
 635         my $to = shift;
 636         my $to_name = shift;
 637         my $format = shift || "html";
 638
 639         my $from_tmp = "/dev/null";
 640         my $to_tmp = "/dev/null";
 641         my $pid = $$;
 642
 643         # create tmp from-file
 644         if (defined $from) {
 645                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 646                 open my $fd2, "> $from_tmp";
 647                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
 648                 my @file = <$fd>;
 649                 print $fd2 @file;
 650                 close $fd2;
 651                 close $fd;
 652         }
 653
 654         # create tmp to-file
 655         if (defined $to) {
 656                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 657                 open my $fd2, "> $to_tmp";
 658                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
 659                 my @file = <$fd>;
 660                 print $fd2 @file;
 661                 close $fd2;
 662                 close $fd;
 663         }
 664
 665         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 666         if ($format eq "plain") {
 667                 undef $/;
 668                 print <$fd>;
 669                 $/ = "\n";
 670         } else {
 671                 while (my $line = <$fd>) {
 672                         chomp $line;
 673                         my $char = substr($line, 0, 1);
 674                         my $diff_class = "";
 675                         if ($char eq '+') {
 676                                 $diff_class = " add";
 677                         } elsif ($char eq "-") {
 678                                 $diff_class = " rem";
 679                         } elsif ($char eq "@") {
 680                                 $diff_class = " chunk_header";
 681                         } elsif ($char eq "\\") {
 682                                 # skip errors
 683                                 next;
 684                         }
 685                         while ((my $pos = index($line, "\t")) != -1) {
 686                                 if (my $count = (8 - (($pos-1) % 8))) {
 687                                         my $spaces = ' ' x $count;
 688                                         $line =~ s/\t/$spaces/;
 689                                 }
 690                         }
 691                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 692                 }
 693         }
 694         close $fd;
 695
 696         if (defined $from) {
 697                 unlink($from_tmp);
 698         }
 699         if (defined $to) {
 700                 unlink($to_tmp);
 701         }
 702 }
 703
 704 sub mode_str {
 705         my $mode = oct shift;
 706
 707         if (S_ISDIR($mode & S_IFMT)) {
 708                 return 'drwxr-xr-x';
 709         } elsif (S_ISLNK($mode)) {
 710                 return 'lrwxrwxrwx';
 711         } elsif (S_ISREG($mode)) {
 712                 # git cares only about the executable bit
 713                 if ($mode & S_IXUSR) {
 714                         return '-rwxr-xr-x';
 715                 } else {
 716                         return '-rw-r--r--';
 717                 };
 718         } else {
 719                 return '----------';
 720         }
 721 }
 722
 723 sub chop_str {
 724         my $str = shift;
 725         my $len = shift;
 726         my $add_len = shift || 10;
 727
 728         # allow only $len chars, but don't cut a word if it would fit in $add_len
 729         # if it doesn't fit, cut it if it's still longer than the dots we would add
 730         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 731         my $body = $1;
 732         my $tail = $2;
 733         if (length($tail) > 4) {
 734                 $tail = " ...";
 735         }
 736         return "$body$tail";
 737 }
 738
 739 sub file_type {
 740         my $mode = oct shift;
 741
 742         if (S_ISDIR($mode & S_IFMT)) {
 743                 return "directory";
 744         } elsif (S_ISLNK($mode)) {
 745                 return "symlink";
 746         } elsif (S_ISREG($mode)) {
 747                 return "file";
 748         } else {
 749                 return "unknown";
 750         }
 751 }
 752
 753 sub format_log_line_html {
 754         my $line = shift;
 755
 756         $line = esc_html($line);
 757         $line =~ s/ /&nbsp;/g;
 758         if ($line =~ m/([0-9a-fA-F]{40})/) {
 759                 my $hash_text = $1;
 760                 if (git_get_type($hash_text) eq "commit") {
 761                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 762                         $line =~ s/$hash_text/$link/;
 763                 }
 764         }
 765         return $line;
 766 }
 767
 768 sub date_str {
 769         my $epoch = shift;
 770         my $tz = shift || "-0000";
 771
 772         my %date;
 773         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 774         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 775         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 776         $date{'hour'} = $hour;
 777         $date{'minute'} = $min;
 778         $date{'mday'} = $mday;
 779         $date{'day'} = $days[$wday];
 780         $date{'month'} = $months[$mon];
 781         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 782         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 783
 784         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 785         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 786         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 787         $date{'hour_local'} = $hour;
 788         $date{'minute_local'} = $min;
 789         $date{'tz_local'} = $tz;
 790         return %date;
 791 }
 792
 793 # git-logo (cached in browser for one day)
 794 sub git_logo {
 795         binmode STDOUT, ':raw';
 796         print $cgi->header(-type => 'image/png', -expires => '+1d');
 797         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 798         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 799                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 800                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 801                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 802                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 803                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 804                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 805                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 806                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 807                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 808                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 809                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 810                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 811 }
 812
 813 sub get_file_owner {
 814         my $path = shift;
 815
 816         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 817         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 818         if (!defined $gcos) {
 819                 return undef;
 820         }
 821         my $owner = $gcos;
 822         $owner =~ s/[,;].*$//;
 823         return decode("utf8", $owner, Encode::FB_DEFAULT);
 824 }
 825
 826 sub git_read_projects {
 827         my @list;
 828
 829         if (-d $projects_list) {
 830                 # search in directory
 831                 my $dir = $projects_list;
 832                 opendir my ($dh), $dir or return undef;
 833                 while (my $dir = readdir($dh)) {
 834                         if (-e "$projectroot/$dir/HEAD") {
 835                                 my $pr = {
 836                                         path => $dir,
 837                                 };
 838                                 push @list, $pr
 839                         }
 840                 }
 841                 closedir($dh);
 842         } elsif (-f $projects_list) {
 843                 # read from file(url-encoded):
 844                 # 'git%2Fgit.git Linus+Torvalds'
 845                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 846                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 847                 open my ($fd), $projects_list or return undef;
 848                 while (my $line = <$fd>) {
 849                         chomp $line;
 850                         my ($path, $owner) = split ' ', $line;
 851                         $path = unescape($path);
 852                         $owner = unescape($owner);
 853                         if (!defined $path) {
 854                                 next;
 855                         }
 856                         if (-e "$projectroot/$path/HEAD") {
 857                                 my $pr = {
 858                                         path => $path,
 859                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 860                                 };
 861                                 push @list, $pr
 862                         }
 863                 }
 864                 close $fd;
 865         }
 866         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 867         return @list;
 868 }
 869
 870 sub git_get_project_config {
 871         my $key = shift;
 872
 873         return unless ($key);
 874         $key =~ s/^gitweb\.//;
 875         return if ($key =~ m/\W/);
 876
 877         my $val = qx($GIT repo-config --get gitweb.$key);
 878         return ($val);
 879 }
 880
 881 sub git_get_project_config_bool {
 882         my $val = git_get_project_config (@_);
 883         if ($val and $val =~ m/true|yes|on/) {
 884                 return (1);
 885         }
 886         return; # implicit false
 887 }
 888
 889 sub git_project_list {
 890         my @list = git_read_projects();
 891         my @projects;
 892         if (!@list) {
 893                 die_error(undef, "No project found.");
 894         }
 895         foreach my $pr (@list) {
 896                 my $head = git_read_head($pr->{'path'});
 897                 if (!defined $head) {
 898                         next;
 899                 }
 900                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 901                 my %co = git_read_commit($head);
 902                 if (!%co) {
 903                         next;
 904                 }
 905                 $pr->{'commit'} = \%co;
 906                 if (!defined $pr->{'descr'}) {
 907                         my $descr = git_read_description($pr->{'path'}) || "";
 908                         $pr->{'descr'} = chop_str($descr, 25, 5);
 909                 }
 910                 if (!defined $pr->{'owner'}) {
 911                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 912                 }
 913                 push @projects, $pr;
 914         }
 915         git_header_html();
 916         if (-f $home_text) {
 917                 print "<div class=\"index_include\">\n";
 918                 open (my $fd, $home_text);
 919                 print <$fd>;
 920                 close $fd;
 921                 print "</div>\n";
 922         }
 923         print "<table class=\"project_list\">\n" .
 924               "<tr>\n";
 925         if (!defined($order) || (defined($order) && ($order eq "project"))) {
 926                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 927                 print "<th>Project</th>\n";
 928         } else {
 929                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 930         }
 931         if (defined($order) && ($order eq "descr")) {
 932                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 933                 print "<th>Description</th>\n";
 934         } else {
 935                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 936         }
 937         if (defined($order) && ($order eq "owner")) {
 938                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 939                 print "<th>Owner</th>\n";
 940         } else {
 941                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 942         }
 943         if (defined($order) && ($order eq "age")) {
 944                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 945                 print "<th>Last Change</th>\n";
 946         } else {
 947                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 948         }
 949         print "<th></th>\n" .
 950               "</tr>\n";
 951         my $alternate = 0;
 952         foreach my $pr (@projects) {
 953                 if ($alternate) {
 954                         print "<tr class=\"dark\">\n";
 955                 } else {
 956                         print "<tr class=\"light\">\n";
 957                 }
 958                 $alternate ^= 1;
 959                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
 960                       "<td>$pr->{'descr'}</td>\n" .
 961                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 962                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
 963                       "<td class=\"link\">" .
 964                       $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
 965                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
 966                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
 967                       "</td>\n" .
 968                       "</tr>\n";
 969         }
 970         print "</table>\n";
 971         git_footer_html();
 972 }
 973
 974 sub read_info_ref {
 975         my $type = shift || "";
 976         my %refs;
 977         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 978         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 979         open my $fd, "$projectroot/$project/info/refs" or return;
 980         while (my $line = <$fd>) {
 981                 chomp $line;
 982                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
 983                         if (defined $refs{$1}) {
 984                                 $refs{$1} .= " / $2";
 985                         } else {
 986                                 $refs{$1} = $2;
 987                         }
 988                 }
 989         }
 990         close $fd or return;
 991         return \%refs;
 992 }
 993
 994 sub git_read_refs {
 995         my $ref_dir = shift;
 996         my @reflist;
 997
 998         my @refs;
 999         opendir my $dh, "$projectroot/$project/$ref_dir";
1000         while (my $dir = readdir($dh)) {
1001                 if ($dir =~ m/^\./) {
1002                         next;
1003                 }
1004                 if (-d "$projectroot/$project/$ref_dir/$dir") {
1005                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
1006                         my @subdirs = grep !m/^\./, readdir $dh2;
1007                         closedir($dh2);
1008                         foreach my $subdir (@subdirs) {
1009                                 push @refs, "$dir/$subdir"
1010                         }
1011                         next;
1012                 }
1013                 push @refs, $dir;
1014         }
1015         closedir($dh);
1016         foreach my $ref_file (@refs) {
1017                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
1018                 my $type = git_get_type($ref_id) || next;
1019                 my %ref_item;
1020                 my %co;
1021                 $ref_item{'type'} = $type;
1022                 $ref_item{'id'} = $ref_id;
1023                 $ref_item{'epoch'} = 0;
1024                 $ref_item{'age'} = "unknown";
1025                 if ($type eq "tag") {
1026                         my %tag = git_read_tag($ref_id);
1027                         $ref_item{'comment'} = $tag{'comment'};
1028                         if ($tag{'type'} eq "commit") {
1029                                 %co = git_read_commit($tag{'object'});
1030                                 $ref_item{'epoch'} = $co{'committer_epoch'};
1031                                 $ref_item{'age'} = $co{'age_string'};
1032                         } elsif (defined($tag{'epoch'})) {
1033                                 my $age = time - $tag{'epoch'};
1034                                 $ref_item{'epoch'} = $tag{'epoch'};
1035                                 $ref_item{'age'} = age_string($age);
1036                         }
1037                         $ref_item{'reftype'} = $tag{'type'};
1038                         $ref_item{'name'} = $tag{'name'};
1039                         $ref_item{'refid'} = $tag{'object'};
1040                 } elsif ($type eq "commit"){
1041                         %co = git_read_commit($ref_id);
1042                         $ref_item{'reftype'} = "commit";
1043                         $ref_item{'name'} = $ref_file;
1044                         $ref_item{'title'} = $co{'title'};
1045                         $ref_item{'refid'} = $ref_id;
1046                         $ref_item{'epoch'} = $co{'committer_epoch'};
1047                         $ref_item{'age'} = $co{'age_string'};
1048                 }
1049
1050                 push @reflist, \%ref_item;
1051         }
1052         # sort tags by age
1053         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1054         return \@reflist;
1055 }
1056
1057 sub git_summary {
1058         my $descr = git_read_description($project) || "none";
1059         my $head = git_read_head($project);
1060         my %co = git_read_commit($head);
1061         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1062
1063         my $owner;
1064         if (-f $projects_list) {
1065                 open (my $fd , $projects_list);
1066                 while (my $line = <$fd>) {
1067                         chomp $line;
1068                         my ($pr, $ow) = split ' ', $line;
1069                         $pr = unescape($pr);
1070                         $ow = unescape($ow);
1071                         if ($pr eq $project) {
1072                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
1073                                 last;
1074                         }
1075                 }
1076                 close $fd;
1077         }
1078         if (!defined $owner) {
1079                 $owner = get_file_owner("$projectroot/$project");
1080         }
1081
1082         my $refs = read_info_ref();
1083         git_header_html();
1084         git_page_nav('summary','', $head);
1085         print "<div class=\"title\">&nbsp;</div>\n";
1086         print "<table cellspacing=\"0\">\n" .
1087               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1088               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1089               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1090               "</table>\n";
1091         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_read_head($project)
1092                 or die_error(undef, "Open git-rev-list failed.");
1093         my @revlist = map { chomp; $_ } <$fd>;
1094         close $fd;
1095         print "<div>\n" .
1096               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1097               "</div>\n";
1098         my $i = 16;
1099         print "<table cellspacing=\"0\">\n";
1100         my $alternate = 0;
1101         foreach my $commit (@revlist) {
1102                 my %co = git_read_commit($commit);
1103                 my %ad = date_str($co{'author_epoch'});
1104                 if ($alternate) {
1105                         print "<tr class=\"dark\">\n";
1106                 } else {
1107                         print "<tr class=\"light\">\n";
1108                 }
1109                 $alternate ^= 1;
1110                 if ($i-- > 0) {
1111                         my $ref = "";
1112                         if (defined $refs->{$commit}) {
1113                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1114                         }
1115                         print "<td><i>$co{'age_string'}</i></td>\n" .
1116                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1117                               "<td>";
1118                         if (length($co{'title_short'}) < length($co{'title'})) {
1119                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1120                                       "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
1121                         } else {
1122                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1123                                       "<b>" . esc_html($co{'title'}) . "$ref</b>");
1124                         }
1125                         print "</td>\n" .
1126                               "<td class=\"link\">" .
1127                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1128                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1129                               "</td>\n" .
1130                               "</tr>";
1131                 } else {
1132                         print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1133                         "</tr>";
1134                         last;
1135                 }
1136         }
1137         print "</table\n>";
1138
1139         my $taglist = git_read_refs("refs/tags");
1140         if (defined @$taglist) {
1141                 print "<div>\n" .
1142                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1143                       "</div>\n";
1144                 my $i = 16;
1145                 print "<table cellspacing=\"0\">\n";
1146                 my $alternate = 0;
1147                 foreach my $entry (@$taglist) {
1148                         my %tag = %$entry;
1149                         my $comment_lines = $tag{'comment'};
1150                         my $comment = shift @$comment_lines;
1151                         if (defined($comment)) {
1152                                 $comment = chop_str($comment, 30, 5);
1153                         }
1154                         if ($alternate) {
1155                                 print "<tr class=\"dark\">\n";
1156                         } else {
1157                                 print "<tr class=\"light\">\n";
1158                         }
1159                         $alternate ^= 1;
1160                         if ($i-- > 0) {
1161                                 print "<td><i>$tag{'age'}</i></td>\n" .
1162                                       "<td>" .
1163                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1164                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1165                                       "</td>\n" .
1166                                       "<td>";
1167                                 if (defined($comment)) {
1168                                         print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, esc_html($comment));
1169                                 }
1170                                 print "</td>\n" .
1171                                       "<td class=\"link\">";
1172                                 if ($tag{'type'} eq "tag") {
1173                                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1174                                 }
1175                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1176                                 if ($tag{'reftype'} eq "commit") {
1177                                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1178                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1179                                 }
1180                                 print "</td>\n" .
1181                                       "</tr>";
1182                         } else {
1183                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1184                                 "</tr>";
1185                                 last;
1186                         }
1187                 }
1188                 print "</table\n>";
1189         }
1190
1191         my $headlist = git_read_refs("refs/heads");
1192         if (defined @$headlist) {
1193                 print "<div>\n" .
1194                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1195                       "</div>\n";
1196                 my $i = 16;
1197                 print "<table cellspacing=\"0\">\n";
1198                 my $alternate = 0;
1199                 foreach my $entry (@$headlist) {
1200                         my %tag = %$entry;
1201                         if ($alternate) {
1202                                 print "<tr class=\"dark\">\n";
1203                         } else {
1204                                 print "<tr class=\"light\">\n";
1205                         }
1206                         $alternate ^= 1;
1207                         if ($i-- > 0) {
1208                                 print "<td><i>$tag{'age'}</i></td>\n" .
1209                                       "<td>" .
1210                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1211                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1212                                       "</td>\n" .
1213                                       "<td class=\"link\">" .
1214                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1215                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1216                                       "</td>\n" .
1217                                       "</tr>";
1218                         } else {
1219                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1220                                 "</tr>";
1221                                 last;
1222                         }
1223                 }
1224                 print "</table\n>";
1225         }
1226         git_footer_html();
1227 }
1228
1229 sub git_print_page_path {
1230         my $name = shift;
1231         my $type = shift;
1232
1233         if (!defined $name) {
1234                 print "<div class=\"page_path\"><b>/</b></div>\n";
1235         } elsif ($type =~ "blob") {
1236                 print "<div class=\"page_path\"><b>" .
1237                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
1238         } else {
1239                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1240         }
1241 }
1242
1243 sub git_tag {
1244         my $head = git_read_head($project);
1245         git_header_html();
1246         git_page_nav('','', $head,undef,$head);
1247         my %tag = git_read_tag($hash);
1248         print "<div>\n" .
1249               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1250               "</div>\n";
1251         print "<div class=\"title_text\">\n" .
1252               "<table cellspacing=\"0\">\n" .
1253               "<tr>\n" .
1254               "<td>object</td>\n" .
1255               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1256               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1257               "</tr>\n";
1258         if (defined($tag{'author'})) {
1259                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1260                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1261                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1262         }
1263         print "</table>\n\n" .
1264               "</div>\n";
1265         print "<div class=\"page_body\">";
1266         my $comment = $tag{'comment'};
1267         foreach my $line (@$comment) {
1268                 print esc_html($line) . "<br/>\n";
1269         }
1270         print "</div>\n";
1271         git_footer_html();
1272 }
1273
1274 sub git_blame2 {
1275         my $fd;
1276         my $ftype;
1277         die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
1278         die_error('404 Not Found', "File name not defined") if (!$file_name);
1279         $hash_base ||= git_read_head($project);
1280         die_error(undef, "Reading commit failed") unless ($hash_base);
1281         my %co = git_read_commit($hash_base)
1282                 or die_error(undef, "Reading commit failed");
1283         if (!defined $hash) {
1284                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1285                         or die_error(undef, "Error looking up file");
1286         }
1287         $ftype = git_get_type($hash);
1288         if ($ftype !~ "blob") {
1289                 die_error("400 Bad Request", "object is not a blob");
1290         }
1291         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1292                 or die_error(undef, "Open git-blame failed.");
1293         git_header_html();
1294         my $formats_nav =
1295                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1296                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
1297         git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1298         print "<div>" .
1299               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1300               "</div>\n";
1301         git_print_page_path($file_name, $ftype);
1302         my @rev_color = (qw(light dark));
1303         my $num_colors = scalar(@rev_color);
1304         my $current_color = 0;
1305         my $last_rev;
1306         print "<div class=\"page_body\">\n";
1307         print "<table class=\"blame\">\n";
1308         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1309         while (<$fd>) {
1310                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1311                 my $full_rev = $1;
1312                 my $rev = substr($full_rev, 0, 8);
1313                 my $lineno = $2;
1314                 my $data = $3;
1315
1316                 if (!defined $last_rev) {
1317                         $last_rev = $full_rev;
1318                 } elsif ($last_rev ne $full_rev) {
1319                         $last_rev = $full_rev;
1320                         $current_color = ++$current_color % $num_colors;
1321                 }
1322                 print "<tr class=\"$rev_color[$current_color]\">\n";
1323                 print "<td class=\"sha1\">" .
1324                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
1325                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1326                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1327                 print "</tr>\n";
1328         }
1329         print "</table>\n";
1330         print "</div>";
1331         close $fd or print "Reading blob failed\n";
1332         git_footer_html();
1333 }
1334
1335 sub git_blame {
1336         my $fd;
1337         die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
1338         die_error('404 Not Found', "What file will it be, master?") if (!$file_name);
1339         $hash_base ||= git_read_head($project);
1340         die_error(undef, "Reading commit failed.") unless ($hash_base);
1341         my %co = git_read_commit($hash_base)
1342                 or die_error(undef, "Reading commit failed.");
1343         if (!defined $hash) {
1344                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1345                         or die_error(undef, "Error lookup file.");
1346         }
1347         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1348                 or die_error(undef, "Open git-annotate failed.");
1349         git_header_html();
1350         my $formats_nav =
1351                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1352                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
1353         git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1354         print "<div>" .
1355               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1356               "</div>\n";
1357         git_print_page_path($file_name);
1358         print "<div class=\"page_body\">\n";
1359         print <<HTML;
1360 <table class="blame">
1361   <tr>
1362     <th>Commit</th>
1363     <th>Age</th>
1364     <th>Author</th>
1365     <th>Line</th>
1366     <th>Data</th>
1367   </tr>
1368 HTML
1369         my @line_class = (qw(light dark));
1370         my $line_class_len = scalar (@line_class);
1371         my $line_class_num = $#line_class;
1372         while (my $line = <$fd>) {
1373                 my $long_rev;
1374                 my $short_rev;
1375                 my $author;
1376                 my $time;
1377                 my $lineno;
1378                 my $data;
1379                 my $age;
1380                 my $age_str;
1381                 my $age_class;
1382
1383                 chomp $line;
1384                 $line_class_num = ($line_class_num + 1) % $line_class_len;
1385
1386                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1387                         $long_rev = $1;
1388                         $author   = $2;
1389                         $time     = $3;
1390                         $lineno   = $4;
1391                         $data     = $5;
1392                 } else {
1393                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1394                         next;
1395                 }
1396                 $short_rev  = substr ($long_rev, 0, 8);
1397                 $age        = time () - $time;
1398                 $age_str    = age_string ($age);
1399                 $age_str    =~ s/ /&nbsp;/g;
1400                 $age_class  = age_class($age);
1401                 $author     = esc_html ($author);
1402                 $author     =~ s/ /&nbsp;/g;
1403                 # escape tabs
1404                 while ((my $pos = index($data, "\t")) != -1) {
1405                         if (my $count = (8 - ($pos % 8))) {
1406                                 my $spaces = ' ' x $count;
1407                                 $data =~ s/\t/$spaces/;
1408                         }
1409                 }
1410                 $data = esc_html ($data);
1411
1412                 print <<HTML;
1413   <tr class="$line_class[$line_class_num]">
1414     <td class="sha1"><a href="$my_uri?${\esc_param ("p=$project;a=commit;h=$long_rev")}" class="text">$short_rev..</a></td>
1415     <td class="$age_class">$age_str</td>
1416     <td>$author</td>
1417     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1418     <td class="pre">$data</td>
1419   </tr>
1420 HTML
1421         } # while (my $line = <$fd>)
1422         print "</table>\n\n";
1423         close $fd or print "Reading blob failed.\n";
1424         print "</div>";
1425         git_footer_html();
1426 }
1427
1428 sub git_tags {
1429         my $head = git_read_head($project);
1430         git_header_html();
1431         git_page_nav('','', $head,undef,$head);
1432         my $taglist = git_read_refs("refs/tags");
1433         print "<div>\n" .
1434               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1435               "</div>\n";
1436         print "<table cellspacing=\"0\">\n";
1437         my $alternate = 0;
1438         if (defined @$taglist) {
1439                 foreach my $entry (@$taglist) {
1440                         my %tag = %$entry;
1441                         my $comment_lines = $tag{'comment'};
1442                         my $comment = shift @$comment_lines;
1443                         if (defined($comment)) {
1444                                 $comment = chop_str($comment, 30, 5);
1445                         }
1446                         if ($alternate) {
1447                                 print "<tr class=\"dark\">\n";
1448                         } else {
1449                                 print "<tr class=\"light\">\n";
1450                         }
1451                         $alternate ^= 1;
1452                         print "<td><i>$tag{'age'}</i></td>\n" .
1453                               "<td>" .
1454                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1455                               "<b>" . esc_html($tag{'name'}) . "</b>") .
1456                               "</td>\n" .
1457                               "<td>";
1458                         if (defined($comment)) {
1459                                 print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1460                         }
1461                         print "</td>\n" .
1462                               "<td class=\"link\">";
1463                         if ($tag{'type'} eq "tag") {
1464                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1465                         }
1466                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1467                         if ($tag{'reftype'} eq "commit") {
1468                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1469                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1470                         }
1471                         print "</td>\n" .
1472                               "</tr>";
1473                 }
1474         }
1475         print "</table\n>";
1476         git_footer_html();
1477 }
1478
1479 sub git_heads {
1480         my $head = git_read_head($project);
1481         git_header_html();
1482         git_page_nav('','', $head,undef,$head);
1483         my $taglist = git_read_refs("refs/heads");
1484         print "<div>\n" .
1485               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1486               "</div>\n";
1487         print "<table cellspacing=\"0\">\n";
1488         my $alternate = 0;
1489         if (defined @$taglist) {
1490                 foreach my $entry (@$taglist) {
1491                         my %tag = %$entry;
1492                         if ($alternate) {
1493                                 print "<tr class=\"dark\">\n";
1494                         } else {
1495                                 print "<tr class=\"light\">\n";
1496                         }
1497                         $alternate ^= 1;
1498                         print "<td><i>$tag{'age'}</i></td>\n" .
1499                               "<td>" .
1500                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1501                               "</td>\n" .
1502                               "<td class=\"link\">" .
1503                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1504                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1505                               "</td>\n" .
1506                               "</tr>";
1507                 }
1508         }
1509         print "</table\n>";
1510         git_footer_html();
1511 }
1512
1513 sub git_get_hash_by_path {
1514         my $base = shift;
1515         my $path = shift || return undef;
1516
1517         my $tree = $base;
1518
1519         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
1520                 or die_error(undef, "Open git-ls-tree failed.");
1521         my $line = <$fd>;
1522         close $fd or return undef;
1523
1524         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1525         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1526         return $3;
1527 }
1528
1529 sub mimetype_guess_file {
1530         my $filename = shift;
1531         my $mimemap = shift;
1532         -r $mimemap or return undef;
1533
1534         my %mimemap;
1535         open(MIME, $mimemap) or return undef;
1536         while (<MIME>) {
1537                 my ($mime, $exts) = split(/\t+/);
1538                 my @exts = split(/\s+/, $exts);
1539                 foreach my $ext (@exts) {
1540                         $mimemap{$ext} = $mime;
1541                 }
1542         }
1543         close(MIME);
1544
1545         $filename =~ /\.(.*?)$/;
1546         return $mimemap{$1};
1547 }
1548
1549 sub mimetype_guess {
1550         my $filename = shift;
1551         my $mime;
1552         $filename =~ /\./ or return undef;
1553
1554         if ($mimetypes_file) {
1555                 my $file = $mimetypes_file;
1556                 #$file =~ m#^/# or $file = "$projectroot/$path/$file";
1557                 $mime = mimetype_guess_file($filename, $file);
1558         }
1559         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1560         return $mime;
1561 }
1562
1563 sub git_blob_plain_mimetype {
1564         my $fd = shift;
1565         my $filename = shift;
1566
1567         if ($filename) {
1568                 my $mime = mimetype_guess($filename);
1569                 $mime and return $mime;
1570         }
1571
1572         # just in case
1573         return $default_blob_plain_mimetype unless $fd;
1574
1575         if (-T $fd) {
1576                 return 'text/plain' .
1577                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1578         } elsif (! $filename) {
1579                 return 'application/octet-stream';
1580         } elsif ($filename =~ m/\.png$/i) {
1581                 return 'image/png';
1582         } elsif ($filename =~ m/\.gif$/i) {
1583                 return 'image/gif';
1584         } elsif ($filename =~ m/\.jpe?g$/i) {
1585                 return 'image/jpeg';
1586         } else {
1587                 return 'application/octet-stream';
1588         }
1589 }
1590
1591 sub git_blob_plain {
1592         if (!defined $hash) {
1593                 if (defined $file_name) {
1594                         my $base = $hash_base || git_read_head($project);
1595                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1596                                 or die_error(undef, "Error lookup file.");
1597                 } else {
1598                         die_error(undef, "No file name defined.");
1599                 }
1600         }
1601         my $type = shift;
1602         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1603                 or die_error("Couldn't cat $file_name, $hash");
1604
1605         $type ||= git_blob_plain_mimetype($fd, $file_name);
1606
1607         # save as filename, even when no $file_name is given
1608         my $save_as = "$hash";
1609         if (defined $file_name) {
1610                 $save_as = $file_name;
1611         } elsif ($type =~ m/^text\//) {
1612                 $save_as .= '.txt';
1613         }
1614
1615         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1616         undef $/;
1617         binmode STDOUT, ':raw';
1618         print <$fd>;
1619         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1620         $/ = "\n";
1621         close $fd;
1622 }
1623
1624 sub git_blob {
1625         if (!defined $hash) {
1626                 if (defined $file_name) {
1627                         my $base = $hash_base || git_read_head($project);
1628                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1629                                 or die_error(undef, "Error lookup file.");
1630                 } else {
1631                         die_error(undef, "No file name defined.");
1632                 }
1633         }
1634         my $have_blame = git_get_project_config_bool ('blame');
1635         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1636                 or die_error(undef, "Couldn't cat $file_name, $hash.");
1637         my $mimetype = git_blob_plain_mimetype($fd, $file_name);
1638         if ($mimetype !~ m/^text\//) {
1639                 close $fd;
1640                 return git_blob_plain($mimetype);
1641         }
1642         git_header_html();
1643         my $formats_nav = '';
1644         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1645                 if (defined $file_name) {
1646                         if ($have_blame) {
1647                                 $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") . " | ";
1648                         }
1649                         $formats_nav .=
1650                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1651                                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head");
1652                 } else {
1653                         $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain");
1654                 }
1655                 git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1656                 print "<div>" .
1657                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1658                       "</div>\n";
1659         } else {
1660                 print "<div class=\"page_nav\">\n" .
1661                       "<br/><br/></div>\n" .
1662                       "<div class=\"title\">$hash</div>\n";
1663         }
1664         git_print_page_path($file_name, "blob");
1665         print "<div class=\"page_body\">\n";
1666         my $nr;
1667         while (my $line = <$fd>) {
1668                 chomp $line;
1669                 $nr++;
1670                 while ((my $pos = index($line, "\t")) != -1) {
1671                         if (my $count = (8 - ($pos % 8))) {
1672                                 my $spaces = ' ' x $count;
1673                                 $line =~ s/\t/$spaces/;
1674                         }
1675                 }
1676                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1677         }
1678         close $fd or print "Reading blob failed.\n";
1679         print "</div>";
1680         git_footer_html();
1681 }
1682
1683 sub git_tree {
1684         if (!defined $hash) {
1685                 $hash = git_read_head($project);
1686                 if (defined $file_name) {
1687                         my $base = $hash_base || $hash;
1688                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1689                 }
1690                 if (!defined $hash_base) {
1691                         $hash_base = $hash;
1692                 }
1693         }
1694         $/ = "\0";
1695         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
1696                 or die_error(undef, "Open git-ls-tree failed.");
1697         my @entries = map { chomp; $_ } <$fd>;
1698         close $fd or die_error(undef, "Reading tree failed.");
1699         $/ = "\n";
1700
1701         my $refs = read_info_ref();
1702         my $ref = "";
1703         if (defined $refs->{$hash_base}) {
1704                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
1705         }
1706         git_header_html();
1707         my $base_key = "";
1708         my $base = "";
1709         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1710                 $base_key = ";hb=$hash_base";
1711                 git_page_nav('tree','', $hash_base);
1712                 print "<div>\n" .
1713                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1714                       "</div>\n";
1715         } else {
1716                 print "<div class=\"page_nav\">\n";
1717                 print "<br/><br/></div>\n";
1718                 print "<div class=\"title\">$hash</div>\n";
1719         }
1720         if (defined $file_name) {
1721                 $base = esc_html("$file_name/");
1722         }
1723         git_print_page_path($file_name);
1724         print "<div class=\"page_body\">\n";
1725         print "<table cellspacing=\"0\">\n";
1726         my $alternate = 0;
1727         foreach my $line (@entries) {
1728                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1729                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1730                 my $t_mode = $1;
1731                 my $t_type = $2;
1732                 my $t_hash = $3;
1733                 my $t_name = validate_input($4);
1734                 if ($alternate) {
1735                         print "<tr class=\"dark\">\n";
1736                 } else {
1737                         print "<tr class=\"light\">\n";
1738                 }
1739                 $alternate ^= 1;
1740                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
1741                 if ($t_type eq "blob") {
1742                         print "<td class=\"list\">" .
1743                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1744                               "</td>\n" .
1745                               "<td class=\"link\">" .
1746                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1747 #                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
1748                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
1749                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
1750                               "</td>\n";
1751                 } elsif ($t_type eq "tree") {
1752                         print "<td class=\"list\">" .
1753                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1754                               "</td>\n" .
1755                               "<td class=\"link\">" .
1756                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1757                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
1758                               "</td>\n";
1759                 }
1760                 print "</tr>\n";
1761         }
1762         print "</table>\n" .
1763               "</div>";
1764         git_footer_html();
1765 }
1766
1767 sub git_rss {
1768         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1769         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_read_head($project)
1770                 or die_error(undef, "Open git-rev-list failed.");
1771         my @revlist = map { chomp; $_ } <$fd>;
1772         close $fd or die_error(undef, "Reading rev-list failed.");
1773         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1774         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1775               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1776         print "<channel>\n";
1777         print "<title>$project</title>\n".
1778               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1779               "<description>$project log</description>\n".
1780               "<language>en</language>\n";
1781
1782         for (my $i = 0; $i <= $#revlist; $i++) {
1783                 my $commit = $revlist[$i];
1784                 my %co = git_read_commit($commit);
1785                 # we read 150, we always show 30 and the ones more recent than 48 hours
1786                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1787                         last;
1788                 }
1789                 my %cd = date_str($co{'committer_epoch'});
1790                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
1791                 my @difftree = map { chomp; $_ } <$fd>;
1792                 close $fd or next;
1793                 print "<item>\n" .
1794                       "<title>" .
1795                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1796                       "</title>\n" .
1797                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1798                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1799                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1800                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1801                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1802                       "<content:encoded>" .
1803                       "<![CDATA[\n";
1804                 my $comment = $co{'comment'};
1805                 foreach my $line (@$comment) {
1806                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1807                         print "$line<br/>\n";
1808                 }
1809                 print "<br/>\n";
1810                 foreach my $line (@difftree) {
1811                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1812                                 next;
1813                         }
1814                         my $file = validate_input(unquote($7));
1815                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1816                         print "$file<br/>\n";
1817                 }
1818                 print "]]>\n" .
1819                       "</content:encoded>\n" .
1820                       "</item>\n";
1821         }
1822         print "</channel></rss>";
1823 }
1824
1825 sub git_opml {
1826         my @list = git_read_projects();
1827
1828         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1829         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1830               "<opml version=\"1.0\">\n".
1831               "<head>".
1832               "  <title>$site_name Git OPML Export</title>\n".
1833               "</head>\n".
1834               "<body>\n".
1835               "<outline text=\"git RSS feeds\">\n";
1836
1837         foreach my $pr (@list) {
1838                 my %proj = %$pr;
1839                 my $head = git_read_head($proj{'path'});
1840                 if (!defined $head) {
1841                         next;
1842                 }
1843                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1844                 my %co = git_read_commit($head);
1845                 if (!%co) {
1846                         next;
1847                 }
1848
1849                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1850                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
1851                 my $html = "$my_url?p=$proj{'path'};a=summary";
1852                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1853         }
1854         print "</outline>\n".
1855               "</body>\n".
1856               "</opml>\n";
1857 }
1858
1859 sub git_log {
1860         my $head = git_read_head($project);
1861         if (!defined $hash) {
1862                 $hash = $head;
1863         }
1864         if (!defined $page) {
1865                 $page = 0;
1866         }
1867         my $refs = read_info_ref();
1868
1869         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1870         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
1871                 or die_error(undef, "Open git-rev-list failed.");
1872         my @revlist = map { chomp; $_ } <$fd>;
1873         close $fd;
1874
1875         my $paging_nav = '';
1876         if ($hash ne $head || $page) {
1877                 $paging_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
1878         } else {
1879                 $paging_nav .= "HEAD";
1880         }
1881         if ($page > 0) {
1882                 $paging_nav .= " &sdot; " .
1883                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
1884         } else {
1885                 $paging_nav .= " &sdot; prev";
1886         }
1887         if ($#revlist >= (100 * ($page+1)-1)) {
1888                 $paging_nav .= " &sdot; " .
1889                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
1890         } else {
1891                 $paging_nav .= " &sdot; next";
1892         }
1893
1894         git_header_html();
1895         git_page_nav('log','', $hash,undef,undef, $paging_nav);
1896
1897         if (!@revlist) {
1898                 print "<div>\n" .
1899                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1900                       "</div>\n";
1901                 my %co = git_read_commit($hash);
1902                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1903         }
1904         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1905                 my $commit = $revlist[$i];
1906                 my $ref = "";
1907                 if (defined $refs->{$commit}) {
1908                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1909                 }
1910                 my %co = git_read_commit($commit);
1911                 next if !%co;
1912                 my %ad = date_str($co{'author_epoch'});
1913                 print "<div>\n" .
1914                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1915                       "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1916                 print "</div>\n";
1917                 print "<div class=\"title_text\">\n" .
1918                       "<div class=\"log_link\">\n" .
1919                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1920                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1921                       "<br/>\n" .
1922                       "</div>\n" .
1923                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1924                       "</div>\n" .
1925                       "<div class=\"log_body\">\n";
1926                 my $comment = $co{'comment'};
1927                 my $empty = 0;
1928                 foreach my $line (@$comment) {
1929                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1930                                 next;
1931                         }
1932                         if ($line eq "") {
1933                                 if ($empty) {
1934                                         next;
1935                                 }
1936                                 $empty = 1;
1937                         } else {
1938                                 $empty = 0;
1939                         }
1940                         print format_log_line_html($line) . "<br/>\n";
1941                 }
1942                 if (!$empty) {
1943                         print "<br/>\n";
1944                 }
1945                 print "</div>\n";
1946         }
1947         git_footer_html();
1948 }
1949
1950 sub git_commit {
1951         my %co = git_read_commit($hash);
1952         if (!%co) {
1953                 die_error(undef, "Unknown commit object.");
1954         }
1955         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1956         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1957
1958         my $parent = $co{'parent'};
1959         if (!defined $parent) {
1960                 $parent = "--root";
1961         }
1962         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
1963                 or die_error(undef, "Open git-diff-tree failed.");
1964         my @difftree = map { chomp; $_ } <$fd>;
1965         close $fd or die_error(undef, "Reading git-diff-tree failed.");
1966
1967         # non-textual hash id's can be cached
1968         my $expires;
1969         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1970                 $expires = "+1d";
1971         }
1972         my $refs = read_info_ref();
1973         my $ref = "";
1974         if (defined $refs->{$co{'id'}}) {
1975                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
1976         }
1977         git_header_html(undef, $expires);
1978         my $formats_nav = '';
1979         if (defined $file_name && defined $co{'parent'}) {
1980                 my $parent = $co{'parent'};
1981                 $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame");
1982         }
1983         git_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
1984                                                          $hash, $co{'tree'}, $hash,
1985                                                          $formats_nav);
1986
1987         if (defined $co{'parent'}) {
1988                 print "<div>\n" .
1989                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1990                       "</div>\n";
1991         } else {
1992                 print "<div>\n" .
1993                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1994                       "</div>\n";
1995         }
1996         print "<div class=\"title_text\">\n" .
1997               "<table cellspacing=\"0\">\n";
1998         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
1999               "<tr>" .
2000               "<td></td><td> $ad{'rfc2822'}";
2001         if ($ad{'hour_local'} < 6) {
2002                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2003         } else {
2004                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2005         }
2006         print "</td>" .
2007               "</tr>\n";
2008         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2009         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2010         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2011         print "<tr>" .
2012               "<td>tree</td>" .
2013               "<td class=\"sha1\">" .
2014               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
2015               "</td>" .
2016               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2017               "</td>" .
2018               "</tr>\n";
2019         my $parents = $co{'parents'};
2020         foreach my $par (@$parents) {
2021                 print "<tr>" .
2022                       "<td>parent</td>" .
2023                       "<td class=\"sha1\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
2024                       "<td class=\"link\">" .
2025                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
2026                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
2027                       "</td>" .
2028                       "</tr>\n";
2029         }
2030         print "</table>".
2031               "</div>\n";
2032         print "<div class=\"page_body\">\n";
2033         my $comment = $co{'comment'};
2034         my $empty = 0;
2035         my $signed = 0;
2036         foreach my $line (@$comment) {
2037                 # print only one empty line
2038                 if ($line eq "") {
2039                         if ($empty || $signed) {
2040                                 next;
2041                         }
2042                         $empty = 1;
2043                 } else {
2044                         $empty = 0;
2045                 }
2046                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2047                         $signed = 1;
2048                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2049                 } else {
2050                         $signed = 0;
2051                         print format_log_line_html($line) . "<br/>\n";
2052                 }
2053         }
2054         print "</div>\n";
2055         print "<div class=\"list_head\">\n";
2056         if ($#difftree > 10) {
2057                 print(($#difftree + 1) . " files changed:\n");
2058         }
2059         print "</div>\n";
2060         print "<table class=\"diff_tree\">\n";
2061         my $alternate = 0;
2062         foreach my $line (@difftree) {
2063                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2064                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2065                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2066                         next;
2067                 }
2068                 my $from_mode = $1;
2069                 my $to_mode = $2;
2070                 my $from_id = $3;
2071                 my $to_id = $4;
2072                 my $status = $5;
2073                 my $similarity = $6;
2074                 my $file = validate_input(unquote($7));
2075                 if ($alternate) {
2076                         print "<tr class=\"dark\">\n";
2077                 } else {
2078                         print "<tr class=\"light\">\n";
2079                 }
2080                 $alternate ^= 1;
2081                 if ($status eq "A") {
2082                         my $mode_chng = "";
2083                         if (S_ISREG(oct $to_mode)) {
2084                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
2085                         }
2086                         print "<td>" .
2087                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2088                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
2089                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
2090                 } elsif ($status eq "D") {
2091                         print "<td>" .
2092                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2093                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
2094                               "<td class=\"link\">" .
2095                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
2096                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
2097                               "</td>\n"
2098                 } elsif ($status eq "M" || $status eq "T") {
2099                         my $mode_chnge = "";
2100                         if ($from_mode != $to_mode) {
2101                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
2102                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
2103                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
2104                                 }
2105                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
2106                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
2107                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
2108                                         } elsif (S_ISREG($to_mode)) {
2109                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
2110                                         }
2111                                 }
2112                                 $mode_chnge .= "]</span>\n";
2113                         }
2114                         print "<td>";
2115                         if ($to_id ne $from_id) {
2116                                 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));
2117                         } else {
2118                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2119                         }
2120                         print "</td>\n" .
2121                               "<td>$mode_chnge</td>\n" .
2122                               "<td class=\"link\">";
2123                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
2124                         if ($to_id ne $from_id) {
2125                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
2126                         }
2127                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
2128                         print "</td>\n";
2129                 } elsif ($status eq "R") {
2130                         my ($from_file, $to_file) = split "\t", $file;
2131                         my $mode_chng = "";
2132                         if ($from_mode != $to_mode) {
2133                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
2134                         }
2135                         print "<td>" .
2136                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
2137                               "<td><span class=\"file_status moved\">[moved from " .
2138                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
2139                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
2140                               "<td class=\"link\">" .
2141                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
2142                         if ($to_id ne $from_id) {
2143                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
2144                         }
2145                         print "</td>\n";
2146                 }
2147                 print "</tr>\n";
2148         }
2149         print "</table>\n";
2150         git_footer_html();
2151 }
2152
2153 sub git_blobdiff {
2154         mkdir($git_temp, 0700);
2155         git_header_html();
2156         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
2157                 my $formats_nav =
2158                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2159                 git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2160                 print "<div>\n" .
2161                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2162                       "</div>\n";
2163         } else {
2164                 print "<div class=\"page_nav\">\n" .
2165                       "<br/><br/></div>\n" .
2166                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2167         }
2168         git_print_page_path($file_name, "blob");
2169         print "<div class=\"page_body\">\n" .
2170               "<div class=\"diff_info\">blob:" .
2171               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2172               " -> blob:" .
2173               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2174               "</div>\n";
2175         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2176         print "</div>";
2177         git_footer_html();
2178 }
2179
2180 sub git_blobdiff_plain {
2181         mkdir($git_temp, 0700);
2182         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2183         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2184 }
2185
2186 sub git_commitdiff {
2187         mkdir($git_temp, 0700);
2188         my %co = git_read_commit($hash);
2189         if (!%co) {
2190                 die_error(undef, "Unknown commit object.");
2191         }
2192         if (!defined $hash_parent) {
2193                 $hash_parent = $co{'parent'};
2194         }
2195         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2196                 or die_error(undef, "Open git-diff-tree failed.");
2197         my @difftree = map { chomp; $_ } <$fd>;
2198         close $fd or die_error(undef, "Reading diff-tree failed.");
2199
2200         # non-textual hash id's can be cached
2201         my $expires;
2202         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2203                 $expires = "+1d";
2204         }
2205         my $refs = read_info_ref();
2206         my $ref = "";
2207         if (defined $refs->{$co{'id'}}) {
2208                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2209         }
2210         git_header_html(undef, $expires);
2211         my $formats_nav =
2212                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2213         git_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2214         print "<div>\n" .
2215               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2216               "</div>\n";
2217         print "<div class=\"page_body\">\n";
2218         my $comment = $co{'comment'};
2219         my $empty = 0;
2220         my $signed = 0;
2221         my @log = @$comment;
2222         # remove first and empty lines after that
2223         shift @log;
2224         while (defined $log[0] && $log[0] eq "") {
2225                 shift @log;
2226         }
2227         foreach my $line (@log) {
2228                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2229                         next;
2230                 }
2231                 if ($line eq "") {
2232                         if ($empty) {
2233                                 next;
2234                         }
2235                         $empty = 1;
2236                 } else {
2237                         $empty = 0;
2238                 }
2239                 print format_log_line_html($line) . "<br/>\n";
2240         }
2241         print "<br/>\n";
2242         foreach my $line (@difftree) {
2243                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2244                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2245                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2246                 my $from_mode = $1;
2247                 my $to_mode = $2;
2248                 my $from_id = $3;
2249                 my $to_id = $4;
2250                 my $status = $5;
2251                 my $file = validate_input(unquote($6));
2252                 if ($status eq "A") {
2253                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2254                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2255                               "</div>\n";
2256                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2257                 } elsif ($status eq "D") {
2258                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2259                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2260                               "</div>\n";
2261                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2262                 } elsif ($status eq "M") {
2263                         if ($from_id ne $to_id) {
2264                                 print "<div class=\"diff_info\">" .
2265                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2266                                       " -> " .
2267                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2268                                 print "</div>\n";
2269                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2270                         }
2271                 }
2272         }
2273         print "<br/>\n" .
2274               "</div>";
2275         git_footer_html();
2276 }
2277
2278 sub git_commitdiff_plain {
2279         mkdir($git_temp, 0700);
2280         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2281                 or die_error(undef, "Open git-diff-tree failed.");
2282         my @difftree = map { chomp; $_ } <$fd>;
2283         close $fd or die_error(undef, "Reading diff-tree failed.");
2284
2285         # try to figure out the next tag after this commit
2286         my $tagname;
2287         my $refs = read_info_ref("tags");
2288         open $fd, "-|", $GIT, "rev-list", "HEAD";
2289         my @commits = map { chomp; $_ } <$fd>;
2290         close $fd;
2291         foreach my $commit (@commits) {
2292                 if (defined $refs->{$commit}) {
2293                         $tagname = $refs->{$commit}
2294                 }
2295                 if ($commit eq $hash) {
2296                         last;
2297                 }
2298         }
2299
2300         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2301         my %co = git_read_commit($hash);
2302         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2303         my $comment = $co{'comment'};
2304         print "From: $co{'author'}\n" .
2305               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2306               "Subject: $co{'title'}\n";
2307         if (defined $tagname) {
2308                 print "X-Git-Tag: $tagname\n";
2309         }
2310         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2311               "\n";
2312
2313         foreach my $line (@$comment) {;
2314                 print "$line\n";
2315         }
2316         print "---\n\n";
2317
2318         foreach my $line (@difftree) {
2319                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2320                 my $from_id = $3;
2321                 my $to_id = $4;
2322                 my $status = $5;
2323                 my $file = $6;
2324                 if ($status eq "A") {
2325                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2326                 } elsif ($status eq "D") {
2327                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2328                 } elsif ($status eq "M") {
2329                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2330                 }
2331         }
2332 }
2333
2334 sub git_history {
2335         if (!defined $hash_base) {
2336                 $hash_base = git_read_head($project);
2337         }
2338         my $ftype;
2339         my %co = git_read_commit($hash_base);
2340         if (!%co) {
2341                 die_error(undef, "Unknown commit object.");
2342         }
2343         my $refs = read_info_ref();
2344         git_header_html();
2345         git_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2346         print "<div>\n" .
2347               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2348               "</div>\n";
2349         if (!defined $hash && defined $file_name) {
2350                 $hash = git_get_hash_by_path($hash_base, $file_name);
2351         }
2352         if (defined $hash) {
2353                 $ftype = git_get_type($hash);
2354         }
2355         git_print_page_path($file_name, $ftype);
2356
2357         open my $fd, "-|",
2358                 $GIT, "rev-list", "--full-history", $hash_base, "--", "\'$file_name\'";
2359         print "<table cellspacing=\"0\">\n";
2360         my $alternate = 0;
2361         while (my $line = <$fd>) {
2362                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2363                         my $commit = $1;
2364                         my %co = git_read_commit($commit);
2365                         if (!%co) {
2366                                 next;
2367                         }
2368                         my $ref = "";
2369                         if (defined $refs->{$commit}) {
2370                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2371                         }
2372                         if ($alternate) {
2373                                 print "<tr class=\"dark\">\n";
2374                         } else {
2375                                 print "<tr class=\"light\">\n";
2376                         }
2377                         $alternate ^= 1;
2378                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2379                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2380                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2381                               esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
2382                               "<td class=\"link\">" .
2383                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2384                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2385                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2386                         my $blob = git_get_hash_by_path($hash_base, $file_name);
2387                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2388                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2389                                 print " | " .
2390                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2391                                 "diff to current");
2392                         }
2393                         print "</td>\n" .
2394                               "</tr>\n";
2395                 }
2396         }
2397         print "</table>\n";
2398         close $fd;
2399         git_footer_html();
2400 }
2401
2402 sub git_search {
2403         if (!defined $searchtext) {
2404                 die_error("", "Text field empty.");
2405         }
2406         if (!defined $hash) {
2407                 $hash = git_read_head($project);
2408         }
2409         my %co = git_read_commit($hash);
2410         if (!%co) {
2411                 die_error(undef, "Unknown commit object.");
2412         }
2413         # pickaxe may take all resources of your box and run for several minutes
2414         # with every query - so decide by yourself how public you make this feature :)
2415         my $commit_search = 1;
2416         my $author_search = 0;
2417         my $committer_search = 0;
2418         my $pickaxe_search = 0;
2419         if ($searchtext =~ s/^author\\://i) {
2420                 $author_search = 1;
2421         } elsif ($searchtext =~ s/^committer\\://i) {
2422                 $committer_search = 1;
2423         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2424                 $commit_search = 0;
2425                 $pickaxe_search = 1;
2426         }
2427         git_header_html();
2428         git_page_nav('','', $hash,$co{'tree'},$hash);
2429
2430         print "<div>\n" .
2431               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2432               "</div>\n";
2433         print "<table cellspacing=\"0\">\n";
2434         my $alternate = 0;
2435         if ($commit_search) {
2436                 $/ = "\0";
2437                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2438                 while (my $commit_text = <$fd>) {
2439                         if (!grep m/$searchtext/i, $commit_text) {
2440                                 next;
2441                         }
2442                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2443                                 next;
2444                         }
2445                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2446                                 next;
2447                         }
2448                         my @commit_lines = split "\n", $commit_text;
2449                         my %co = git_read_commit(undef, \@commit_lines);
2450                         if (!%co) {
2451                                 next;
2452                         }
2453                         if ($alternate) {
2454                                 print "<tr class=\"dark\">\n";
2455                         } else {
2456                                 print "<tr class=\"light\">\n";
2457                         }
2458                         $alternate ^= 1;
2459                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2460                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2461                               "<td>" .
2462                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2463                         my $comment = $co{'comment'};
2464                         foreach my $line (@$comment) {
2465                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2466                                         my $lead = esc_html($1) || "";
2467                                         $lead = chop_str($lead, 30, 10);
2468                                         my $match = esc_html($2) || "";
2469                                         my $trail = esc_html($3) || "";
2470                                         $trail = chop_str($trail, 30, 10);
2471                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2472                                         print chop_str($text, 80, 5) . "<br/>\n";
2473                                 }
2474                         }
2475                         print "</td>\n" .
2476                               "<td class=\"link\">" .
2477                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2478                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2479                         print "</td>\n" .
2480                               "</tr>\n";
2481                 }
2482                 close $fd;
2483         }
2484
2485         if ($pickaxe_search) {
2486                 $/ = "\n";
2487                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2488                 undef %co;
2489                 my @files;
2490                 while (my $line = <$fd>) {
2491                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2492                                 my %set;
2493                                 $set{'file'} = $6;
2494                                 $set{'from_id'} = $3;
2495                                 $set{'to_id'} = $4;
2496                                 $set{'id'} = $set{'to_id'};
2497                                 if ($set{'id'} =~ m/0{40}/) {
2498                                         $set{'id'} = $set{'from_id'};
2499                                 }
2500                                 if ($set{'id'} =~ m/0{40}/) {
2501                                         next;
2502                                 }
2503                                 push @files, \%set;
2504                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2505                                 if (%co) {
2506                                         if ($alternate) {
2507                                                 print "<tr class=\"dark\">\n";
2508                                         } else {
2509                                                 print "<tr class=\"light\">\n";
2510                                         }
2511                                         $alternate ^= 1;
2512                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2513                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2514                                               "<td>" .
2515                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2516                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2517                                         while (my $setref = shift @files) {
2518                                                 my %set = %$setref;
2519                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2520                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2521                                                       "<br/>\n";
2522                                         }
2523                                         print "</td>\n" .
2524                                               "<td class=\"link\">" .
2525                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2526                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2527                                         print "</td>\n" .
2528                                               "</tr>\n";
2529                                 }
2530                                 %co = git_read_commit($1);
2531                         }
2532                 }
2533                 close $fd;
2534         }
2535         print "</table>\n";
2536         git_footer_html();
2537 }
2538
2539 sub git_shortlog {
2540         my $head = git_read_head($project);
2541         if (!defined $hash) {
2542                 $hash = $head;
2543         }
2544         if (!defined $page) {
2545                 $page = 0;
2546         }
2547         my $refs = read_info_ref();
2548
2549         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2550         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2551                 or die_error(undef, "Open git-rev-list failed.");
2552         my @revlist = map { chomp; $_ } <$fd>;
2553         close $fd;
2554
2555         my $paging_nav = '';
2556         if ($hash ne $head || $page) {
2557                 $paging_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
2558         } else {
2559                 $paging_nav .= "HEAD";
2560         }
2561         if ($page > 0) {
2562                 $paging_nav .= " &sdot; " .
2563                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
2564         } else {
2565                 $paging_nav .= " &sdot; prev";
2566         }
2567         if ($#revlist >= (100 * ($page+1)-1)) {
2568                 $paging_nav .= " &sdot; " .
2569                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
2570         } else {
2571                 $paging_nav .= " &sdot; next";
2572         }
2573
2574         git_header_html();
2575         git_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2576
2577         print "<div>\n" .
2578               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2579               "</div>\n";
2580         print "<table cellspacing=\"0\">\n";
2581         my $alternate = 0;
2582         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2583                 my $commit = $revlist[$i];
2584                 my $ref = "";
2585                 if (defined $refs->{$commit}) {
2586                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2587                 }
2588                 my %co = git_read_commit($commit);
2589                 my %ad = date_str($co{'author_epoch'});
2590                 if ($alternate) {
2591                         print "<tr class=\"dark\">\n";
2592                 } else {
2593                         print "<tr class=\"light\">\n";
2594                 }
2595                 $alternate ^= 1;
2596                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2597                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2598                       "<td>";
2599                 if (length($co{'title_short'}) < length($co{'title'})) {
2600                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2601                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2602                 } else {
2603                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2604                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2605                 }
2606                 print "</td>\n" .
2607                       "<td class=\"link\">" .
2608                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2609                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2610                       "</td>\n" .
2611                       "</tr>";
2612         }
2613         if ($#revlist >= (100 * ($page+1)-1)) {
2614                 print "<tr>\n" .
2615                       "<td>" .
2616                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2617                       "</td>\n" .
2618                       "</tr>\n";
2619         }
2620         print "</table\n>";
2621         git_footer_html();
2622 }