]> asedeno.scripts.mit.edu Git - git.git/blob - gitweb/gitweb.cgi
Further clean-up: usage() vs die()
[git.git] / 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_get_type {
389         my $hash = shift;
390
391         open my $fd, "-|", "$GIT cat-file -t $hash" or return;
392         my $type = <$fd>;
393         close $fd or return;
394         chomp $type;
395         return $type;
396 }
397
398 sub git_read_head {
399         my $project = shift;
400         my $oENV = $ENV{'GIT_DIR'};
401         my $retval = undef;
402         $ENV{'GIT_DIR'} = "$projectroot/$project";
403         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
404                 my $head = <$fd>;
405                 close $fd;
406                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
407                         $retval = $1;
408                 }
409         }
410         if (defined $oENV) {
411                 $ENV{'GIT_DIR'} = $oENV;
412         }
413         return $retval;
414 }
415
416 sub git_read_hash {
417         my $path = shift;
418
419         open my $fd, "$projectroot/$path" or return undef;
420         my $head = <$fd>;
421         close $fd;
422         chomp $head;
423         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
424                 return $head;
425         }
426 }
427
428 sub git_read_description {
429         my $path = shift;
430
431         open my $fd, "$projectroot/$path/description" or return undef;
432         my $descr = <$fd>;
433         close $fd;
434         chomp $descr;
435         return $descr;
436 }
437
438 sub git_read_tag {
439         my $tag_id = shift;
440         my %tag;
441         my @comment;
442
443         open my $fd, "-|", "$GIT cat-file tag $tag_id" or return;
444         $tag{'id'} = $tag_id;
445         while (my $line = <$fd>) {
446                 chomp $line;
447                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
448                         $tag{'object'} = $1;
449                 } elsif ($line =~ m/^type (.+)$/) {
450                         $tag{'type'} = $1;
451                 } elsif ($line =~ m/^tag (.+)$/) {
452                         $tag{'name'} = $1;
453                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
454                         $tag{'author'} = $1;
455                         $tag{'epoch'} = $2;
456                         $tag{'tz'} = $3;
457                 } elsif ($line =~ m/--BEGIN/) {
458                         push @comment, $line;
459                         last;
460                 } elsif ($line eq "") {
461                         last;
462                 }
463         }
464         push @comment, <$fd>;
465         $tag{'comment'} = \@comment;
466         close $fd or return;
467         if (!defined $tag{'name'}) {
468                 return
469         };
470         return %tag
471 }
472
473 sub age_string {
474         my $age = shift;
475         my $age_str;
476
477         if ($age > 60*60*24*365*2) {
478                 $age_str = (int $age/60/60/24/365);
479                 $age_str .= " years ago";
480         } elsif ($age > 60*60*24*(365/12)*2) {
481                 $age_str = int $age/60/60/24/(365/12);
482                 $age_str .= " months ago";
483         } elsif ($age > 60*60*24*7*2) {
484                 $age_str = int $age/60/60/24/7;
485                 $age_str .= " weeks ago";
486         } elsif ($age > 60*60*24*2) {
487                 $age_str = int $age/60/60/24;
488                 $age_str .= " days ago";
489         } elsif ($age > 60*60*2) {
490                 $age_str = int $age/60/60;
491                 $age_str .= " hours ago";
492         } elsif ($age > 60*2) {
493                 $age_str = int $age/60;
494                 $age_str .= " min ago";
495         } elsif ($age > 2) {
496                 $age_str = int $age;
497                 $age_str .= " sec ago";
498         } else {
499                 $age_str .= " right now";
500         }
501         return $age_str;
502 }
503
504 sub git_read_commit {
505         my $commit_id = shift;
506         my $commit_text = shift;
507
508         my @commit_lines;
509         my %co;
510
511         if (defined $commit_text) {
512                 @commit_lines = @$commit_text;
513         } else {
514                 $/ = "\0";
515                 open my $fd, "-|", "$GIT rev-list --header --parents --max-count=1 $commit_id" or return;
516                 @commit_lines = split '\n', <$fd>;
517                 close $fd or return;
518                 $/ = "\n";
519                 pop @commit_lines;
520         }
521         my $header = shift @commit_lines;
522         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
523                 return;
524         }
525         ($co{'id'}, my @parents) = split ' ', $header;
526         $co{'parents'} = \@parents;
527         $co{'parent'} = $parents[0];
528         while (my $line = shift @commit_lines) {
529                 last if $line eq "\n";
530                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
531                         $co{'tree'} = $1;
532                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
533                         $co{'author'} = $1;
534                         $co{'author_epoch'} = $2;
535                         $co{'author_tz'} = $3;
536                         if ($co{'author'} =~ m/^([^<]+) </) {
537                                 $co{'author_name'} = $1;
538                         } else {
539                                 $co{'author_name'} = $co{'author'};
540                         }
541                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
542                         $co{'committer'} = $1;
543                         $co{'committer_epoch'} = $2;
544                         $co{'committer_tz'} = $3;
545                         $co{'committer_name'} = $co{'committer'};
546                         $co{'committer_name'} =~ s/ <.*//;
547                 }
548         }
549         if (!defined $co{'tree'}) {
550                 return;
551         };
552
553         foreach my $title (@commit_lines) {
554                 $title =~ s/^    //;
555                 if ($title ne "") {
556                         $co{'title'} = chop_str($title, 80, 5);
557                         # remove leading stuff of merges to make the interesting part visible
558                         if (length($title) > 50) {
559                                 $title =~ s/^Automatic //;
560                                 $title =~ s/^merge (of|with) /Merge ... /i;
561                                 if (length($title) > 50) {
562                                         $title =~ s/(http|rsync):\/\///;
563                                 }
564                                 if (length($title) > 50) {
565                                         $title =~ s/(master|www|rsync)\.//;
566                                 }
567                                 if (length($title) > 50) {
568                                         $title =~ s/kernel.org:?//;
569                                 }
570                                 if (length($title) > 50) {
571                                         $title =~ s/\/pub\/scm//;
572                                 }
573                         }
574                         $co{'title_short'} = chop_str($title, 50, 5);
575                         last;
576                 }
577         }
578         # remove added spaces
579         foreach my $line (@commit_lines) {
580                 $line =~ s/^    //;
581         }
582         $co{'comment'} = \@commit_lines;
583
584         my $age = time - $co{'committer_epoch'};
585         $co{'age'} = $age;
586         $co{'age_string'} = age_string($age);
587         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
588         if ($age > 60*60*24*7*2) {
589                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
590                 $co{'age_string_age'} = $co{'age_string'};
591         } else {
592                 $co{'age_string_date'} = $co{'age_string'};
593                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
594         }
595         return %co;
596 }
597
598 sub git_diff_print {
599         my $from = shift;
600         my $from_name = shift;
601         my $to = shift;
602         my $to_name = shift;
603         my $format = shift || "html";
604
605         my $from_tmp = "/dev/null";
606         my $to_tmp = "/dev/null";
607         my $pid = $$;
608
609         # create tmp from-file
610         if (defined $from) {
611                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
612                 open my $fd2, "> $from_tmp";
613                 open my $fd, "-|", "$GIT cat-file blob $from";
614                 my @file = <$fd>;
615                 print $fd2 @file;
616                 close $fd2;
617                 close $fd;
618         }
619
620         # create tmp to-file
621         if (defined $to) {
622                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
623                 open my $fd2, "> $to_tmp";
624                 open my $fd, "-|", "$GIT cat-file blob $to";
625                 my @file = <$fd>;
626                 print $fd2 @file;
627                 close $fd2;
628                 close $fd;
629         }
630
631         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
632         if ($format eq "plain") {
633                 undef $/;
634                 print <$fd>;
635                 $/ = "\n";
636         } else {
637                 while (my $line = <$fd>) {
638                         chomp($line);
639                         my $char = substr($line, 0, 1);
640                         my $diff_class = "";
641                         if ($char eq '+') {
642                                 $diff_class = " add";
643                         } elsif ($char eq "-") {
644                                 $diff_class = " rem";
645                         } elsif ($char eq "@") {
646                                 $diff_class = " chunk_header";
647                         } elsif ($char eq "\\") {
648                                 # skip errors
649                                 next;
650                         }
651                         while ((my $pos = index($line, "\t")) != -1) {
652                                 if (my $count = (8 - (($pos-1) % 8))) {
653                                         my $spaces = ' ' x $count;
654                                         $line =~ s/\t/$spaces/;
655                                 }
656                         }
657                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
658                 }
659         }
660         close $fd;
661
662         if (defined $from) {
663                 unlink($from_tmp);
664         }
665         if (defined $to) {
666                 unlink($to_tmp);
667         }
668 }
669
670 sub mode_str {
671         my $mode = oct shift;
672
673         if (S_ISDIR($mode & S_IFMT)) {
674                 return 'drwxr-xr-x';
675         } elsif (S_ISLNK($mode)) {
676                 return 'lrwxrwxrwx';
677         } elsif (S_ISREG($mode)) {
678                 # git cares only about the executable bit
679                 if ($mode & S_IXUSR) {
680                         return '-rwxr-xr-x';
681                 } else {
682                         return '-rw-r--r--';
683                 };
684         } else {
685                 return '----------';
686         }
687 }
688
689 sub chop_str {
690         my $str = shift;
691         my $len = shift;
692         my $add_len = shift || 10;
693
694         # allow only $len chars, but don't cut a word if it would fit in $add_len
695         # if it doesn't fit, cut it if it's still longer than the dots we would add
696         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
697         my $body = $1;
698         my $tail = $2;
699         if (length($tail) > 4) {
700                 $tail = " ...";
701         }
702         return "$body$tail";
703 }
704
705 sub file_type {
706         my $mode = oct shift;
707
708         if (S_ISDIR($mode & S_IFMT)) {
709                 return "directory";
710         } elsif (S_ISLNK($mode)) {
711                 return "symlink";
712         } elsif (S_ISREG($mode)) {
713                 return "file";
714         } else {
715                 return "unknown";
716         }
717 }
718
719 sub format_log_line_html {
720         my $line = shift;
721
722         $line = esc_html($line);
723         $line =~ s/ /&nbsp;/g;
724         if ($line =~ m/([0-9a-fA-F]{40})/) {
725                 my $hash_text = $1;
726                 if (git_get_type($hash_text) eq "commit") {
727                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
728                         $line =~ s/$hash_text/$link/;
729                 }
730         }
731         return $line;
732 }
733
734 sub date_str {
735         my $epoch = shift;
736         my $tz = shift || "-0000";
737
738         my %date;
739         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
740         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
741         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
742         $date{'hour'} = $hour;
743         $date{'minute'} = $min;
744         $date{'mday'} = $mday;
745         $date{'day'} = $days[$wday];
746         $date{'month'} = $months[$mon];
747         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
748         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
749
750         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
751         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
752         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
753         $date{'hour_local'} = $hour;
754         $date{'minute_local'} = $min;
755         $date{'tz_local'} = $tz;
756         return %date;
757 }
758
759 # git-logo (cached in browser for one day)
760 sub git_logo {
761         binmode STDOUT, ':raw';
762         print $cgi->header(-type => 'image/png', -expires => '+1d');
763         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
764         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
765                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
766                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
767                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
768                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
769                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
770                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
771                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
772                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
773                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
774                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
775                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
776                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
777 }
778
779 sub get_file_owner {
780         my $path = shift;
781
782         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
783         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
784         if (!defined $gcos) {
785                 return undef;
786         }
787         my $owner = $gcos;
788         $owner =~ s/[,;].*$//;
789         return decode("utf8", $owner, Encode::FB_DEFAULT);
790 }
791
792 sub git_read_projects {
793         my @list;
794
795         if (-d $projects_list) {
796                 # search in directory
797                 my $dir = $projects_list;
798                 opendir my ($dh), $dir or return undef;
799                 while (my $dir = readdir($dh)) {
800                         if (-e "$projectroot/$dir/HEAD") {
801                                 my $pr = {
802                                         path => $dir,
803                                 };
804                                 push @list, $pr
805                         }
806                 }
807                 closedir($dh);
808         } elsif (-f $projects_list) {
809                 # read from file(url-encoded):
810                 # 'git%2Fgit.git Linus+Torvalds'
811                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
812                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
813                 open my ($fd), $projects_list or return undef;
814                 while (my $line = <$fd>) {
815                         chomp $line;
816                         my ($path, $owner) = split ' ', $line;
817                         $path = unescape($path);
818                         $owner = unescape($owner);
819                         if (!defined $path) {
820                                 next;
821                         }
822                         if (-e "$projectroot/$path/HEAD") {
823                                 my $pr = {
824                                         path => $path,
825                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
826                                 };
827                                 push @list, $pr
828                         }
829                 }
830                 close $fd;
831         }
832         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
833         return @list;
834 }
835
836 sub git_get_project_config {
837         my $key = shift;
838
839         return unless ($key);
840         $key =~ s/^gitweb\.//;
841         return if ($key =~ m/\W/);
842
843         my $val = qx($GIT repo-config --get gitweb.$key);
844         return ($val);
845 }
846
847 sub git_get_project_config_bool {
848         my $val = git_get_project_config (@_);
849         if ($val and $val =~ m/true|yes|on/) {
850                 return (1);
851         }
852         return; # implicit false
853 }
854
855 sub git_project_list {
856         my @list = git_read_projects();
857         my @projects;
858         if (!@list) {
859                 die_error(undef, "No project found.");
860         }
861         foreach my $pr (@list) {
862                 my $head = git_read_head($pr->{'path'});
863                 if (!defined $head) {
864                         next;
865                 }
866                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
867                 my %co = git_read_commit($head);
868                 if (!%co) {
869                         next;
870                 }
871                 $pr->{'commit'} = \%co;
872                 if (!defined $pr->{'descr'}) {
873                         my $descr = git_read_description($pr->{'path'}) || "";
874                         $pr->{'descr'} = chop_str($descr, 25, 5);
875                 }
876                 if (!defined $pr->{'owner'}) {
877                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
878                 }
879                 push @projects, $pr;
880         }
881         git_header_html();
882         if (-f $home_text) {
883                 print "<div class=\"index_include\">\n";
884                 open (my $fd, $home_text);
885                 print <$fd>;
886                 close $fd;
887                 print "</div>\n";
888         }
889         print "<table class=\"project_list\">\n" .
890               "<tr>\n";
891         if (!defined($order) || (defined($order) && ($order eq "project"))) {
892                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
893                 print "<th>Project</th>\n";
894         } else {
895                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
896         }
897         if (defined($order) && ($order eq "descr")) {
898                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
899                 print "<th>Description</th>\n";
900         } else {
901                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
902         }
903         if (defined($order) && ($order eq "owner")) {
904                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
905                 print "<th>Owner</th>\n";
906         } else {
907                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
908         }
909         if (defined($order) && ($order eq "age")) {
910                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
911                 print "<th>Last Change</th>\n";
912         } else {
913                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
914         }
915         print "<th></th>\n" .
916               "</tr>\n";
917         my $alternate = 0;
918         foreach my $pr (@projects) {
919                 if ($alternate) {
920                         print "<tr class=\"dark\">\n";
921                 } else {
922                         print "<tr class=\"light\">\n";
923                 }
924                 $alternate ^= 1;
925                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
926                       "<td>$pr->{'descr'}</td>\n" .
927                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
928                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
929                       "<td class=\"link\">" .
930                       $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
931                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
932                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
933                       "</td>\n" .
934                       "</tr>\n";
935         }
936         print "</table>\n";
937         git_footer_html();
938 }
939
940 sub read_info_ref {
941         my $type = shift || "";
942         my %refs;
943         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
944         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
945         open my $fd, "$projectroot/$project/info/refs" or return;
946         while (my $line = <$fd>) {
947                 chomp($line);
948                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
949                         if (defined $refs{$1}) {
950                                 $refs{$1} .= " / $2";
951                         } else {
952                                 $refs{$1} = $2;
953                         }
954                 }
955         }
956         close $fd or return;
957         return \%refs;
958 }
959
960 sub git_read_refs {
961         my $ref_dir = shift;
962         my @reflist;
963
964         my @refs;
965         opendir my $dh, "$projectroot/$project/$ref_dir";
966         while (my $dir = readdir($dh)) {
967                 if ($dir =~ m/^\./) {
968                         next;
969                 }
970                 if (-d "$projectroot/$project/$ref_dir/$dir") {
971                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
972                         my @subdirs = grep !m/^\./, readdir $dh2;
973                         closedir($dh2);
974                         foreach my $subdir (@subdirs) {
975                                 push @refs, "$dir/$subdir"
976                         }
977                         next;
978                 }
979                 push @refs, $dir;
980         }
981         closedir($dh);
982         foreach my $ref_file (@refs) {
983                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
984                 my $type = git_get_type($ref_id) || next;
985                 my %ref_item;
986                 my %co;
987                 $ref_item{'type'} = $type;
988                 $ref_item{'id'} = $ref_id;
989                 $ref_item{'epoch'} = 0;
990                 $ref_item{'age'} = "unknown";
991                 if ($type eq "tag") {
992                         my %tag = git_read_tag($ref_id);
993                         $ref_item{'comment'} = $tag{'comment'};
994                         if ($tag{'type'} eq "commit") {
995                                 %co = git_read_commit($tag{'object'});
996                                 $ref_item{'epoch'} = $co{'committer_epoch'};
997                                 $ref_item{'age'} = $co{'age_string'};
998                         } elsif (defined($tag{'epoch'})) {
999                                 my $age = time - $tag{'epoch'};
1000                                 $ref_item{'epoch'} = $tag{'epoch'};
1001                                 $ref_item{'age'} = age_string($age);
1002                         }
1003                         $ref_item{'reftype'} = $tag{'type'};
1004                         $ref_item{'name'} = $tag{'name'};
1005                         $ref_item{'refid'} = $tag{'object'};
1006                 } elsif ($type eq "commit"){
1007                         %co = git_read_commit($ref_id);
1008                         $ref_item{'reftype'} = "commit";
1009                         $ref_item{'name'} = $ref_file;
1010                         $ref_item{'title'} = $co{'title'};
1011                         $ref_item{'refid'} = $ref_id;
1012                         $ref_item{'epoch'} = $co{'committer_epoch'};
1013                         $ref_item{'age'} = $co{'age_string'};
1014                 }
1015
1016                 push @reflist, \%ref_item;
1017         }
1018         # sort tags by age
1019         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1020         return \@reflist;
1021 }
1022
1023 sub git_summary {
1024         my $descr = git_read_description($project) || "none";
1025         my $head = git_read_head($project);
1026         my %co = git_read_commit($head);
1027         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1028
1029         my $owner;
1030         if (-f $projects_list) {
1031                 open (my $fd , $projects_list);
1032                 while (my $line = <$fd>) {
1033                         chomp $line;
1034                         my ($pr, $ow) = split ' ', $line;
1035                         $pr = unescape($pr);
1036                         $ow = unescape($ow);
1037                         if ($pr eq $project) {
1038                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
1039                                 last;
1040                         }
1041                 }
1042                 close $fd;
1043         }
1044         if (!defined $owner) {
1045                 $owner = get_file_owner("$projectroot/$project");
1046         }
1047
1048         my $refs = read_info_ref();
1049         git_header_html();
1050         print "<div class=\"page_nav\">\n" .
1051               "summary".
1052               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1053               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1054               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1055               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1056               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree") .
1057               "<br/><br/>\n" .
1058               "</div>\n";
1059         print "<div class=\"title\">&nbsp;</div>\n";
1060         print "<table cellspacing=\"0\">\n" .
1061               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1062               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1063               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1064               "</table>\n";
1065         open my $fd, "-|", "$GIT rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
1066         my (@revlist) = map { chomp; $_ } <$fd>;
1067         close $fd;
1068         print "<div>\n" .
1069               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1070               "</div>\n";
1071         my $i = 16;
1072         print "<table cellspacing=\"0\">\n";
1073         my $alternate = 0;
1074         foreach my $commit (@revlist) {
1075                 my %co = git_read_commit($commit);
1076                 my %ad = date_str($co{'author_epoch'});
1077                 if ($alternate) {
1078                         print "<tr class=\"dark\">\n";
1079                 } else {
1080                         print "<tr class=\"light\">\n";
1081                 }
1082                 $alternate ^= 1;
1083                 if ($i-- > 0) {
1084                         my $ref = "";
1085                         if (defined $refs->{$commit}) {
1086                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1087                         }
1088                         print "<td><i>$co{'age_string'}</i></td>\n" .
1089                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1090                               "<td>";
1091                         if (length($co{'title_short'}) < length($co{'title'})) {
1092                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1093                                       "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
1094                         } else {
1095                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1096                                       "<b>" . esc_html($co{'title'}) . "$ref</b>");
1097                         }
1098                         print "</td>\n" .
1099                               "<td class=\"link\">" .
1100                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1101                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1102                               "</td>\n" .
1103                               "</tr>";
1104                 } else {
1105                         print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1106                         "</tr>";
1107                         last;
1108                 }
1109         }
1110         print "</table\n>";
1111
1112         my $taglist = git_read_refs("refs/tags");
1113         if (defined @$taglist) {
1114                 print "<div>\n" .
1115                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1116                       "</div>\n";
1117                 my $i = 16;
1118                 print "<table cellspacing=\"0\">\n";
1119                 my $alternate = 0;
1120                 foreach my $entry (@$taglist) {
1121                         my %tag = %$entry;
1122                         my $comment_lines = $tag{'comment'};
1123                         my $comment = shift @$comment_lines;
1124                         if (defined($comment)) {
1125                                 $comment = chop_str($comment, 30, 5);
1126                         }
1127                         if ($alternate) {
1128                                 print "<tr class=\"dark\">\n";
1129                         } else {
1130                                 print "<tr class=\"light\">\n";
1131                         }
1132                         $alternate ^= 1;
1133                         if ($i-- > 0) {
1134                                 print "<td><i>$tag{'age'}</i></td>\n" .
1135                                       "<td>" .
1136                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1137                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1138                                       "</td>\n" .
1139                                       "<td>";
1140                                 if (defined($comment)) {
1141                                       print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, esc_html($comment));
1142                                 }
1143                                 print "</td>\n" .
1144                                       "<td class=\"link\">";
1145                                 if ($tag{'type'} eq "tag") {
1146                                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1147                                 }
1148                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1149                                 if ($tag{'reftype'} eq "commit") {
1150                                       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1151                                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1152                                 }
1153                                 print "</td>\n" .
1154                                       "</tr>";
1155                         } else {
1156                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1157                                 "</tr>";
1158                                 last;
1159                         }
1160                 }
1161                 print "</table\n>";
1162         }
1163
1164         my $headlist = git_read_refs("refs/heads");
1165         if (defined @$headlist) {
1166                 print "<div>\n" .
1167                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1168                       "</div>\n";
1169                 my $i = 16;
1170                 print "<table cellspacing=\"0\">\n";
1171                 my $alternate = 0;
1172                 foreach my $entry (@$headlist) {
1173                         my %tag = %$entry;
1174                         if ($alternate) {
1175                                 print "<tr class=\"dark\">\n";
1176                         } else {
1177                                 print "<tr class=\"light\">\n";
1178                         }
1179                         $alternate ^= 1;
1180                         if ($i-- > 0) {
1181                                 print "<td><i>$tag{'age'}</i></td>\n" .
1182                                       "<td>" .
1183                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1184                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1185                                       "</td>\n" .
1186                                       "<td class=\"link\">" .
1187                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1188                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1189                                       "</td>\n" .
1190                                       "</tr>";
1191                         } else {
1192                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1193                                 "</tr>";
1194                                 last;
1195                         }
1196                 }
1197                 print "</table\n>";
1198         }
1199         git_footer_html();
1200 }
1201
1202 sub git_print_page_path {
1203         my $name = shift;
1204         my $type = shift;
1205
1206         if (!defined $name) {
1207                 print "<div class=\"page_path\"><b>/</b></div>\n";
1208         } elsif ($type =~ "blob") {
1209                 print "<div class=\"page_path\"><b>" .
1210                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
1211         } else {
1212                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1213         }
1214 }
1215
1216 sub git_tag {
1217         my $head = git_read_head($project);
1218         git_header_html();
1219         print "<div class=\"page_nav\">\n" .
1220               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1221               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1222               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1223               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1224               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1225               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1226               "<br/>\n" .
1227               "</div>\n";
1228         my %tag = git_read_tag($hash);
1229         print "<div>\n" .
1230               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1231               "</div>\n";
1232         print "<div class=\"title_text\">\n" .
1233               "<table cellspacing=\"0\">\n" .
1234               "<tr>\n" .
1235               "<td>object</td>\n" .
1236               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1237               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1238               "</tr>\n";
1239         if (defined($tag{'author'})) {
1240                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1241                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1242                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1243         }
1244         print "</table>\n\n" .
1245               "</div>\n";
1246         print "<div class=\"page_body\">";
1247         my $comment = $tag{'comment'};
1248         foreach my $line (@$comment) {
1249                 print esc_html($line) . "<br/>\n";
1250         }
1251         print "</div>\n";
1252         git_footer_html();
1253 }
1254
1255 sub git_blame2 {
1256         my $fd;
1257         my $ftype;
1258         die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
1259         die_error('404 Not Found', "File name not defined") if (!$file_name);
1260         $hash_base ||= git_read_head($project);
1261         die_error(undef, "Reading commit failed") unless ($hash_base);
1262         my %co = git_read_commit($hash_base)
1263                 or die_error(undef, "Reading commit failed");
1264         if (!defined $hash) {
1265                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1266                         or die_error(undef, "Error looking up file");
1267         }
1268         $ftype = git_get_type($hash);
1269         if ($ftype !~ "blob") {
1270                 die_error("400 Bad Request", "object is not a blob");
1271         }
1272         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1273                 or die_error(undef, "Open failed");
1274         git_header_html();
1275         print "<div class=\"page_nav\">\n" .
1276                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1277                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1278                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1279                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1280                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1281                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1282         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1283                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
1284         print "</div>\n".
1285                 "<div>" .
1286                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1287                 "</div>\n";
1288         git_print_page_path($file_name, $ftype);
1289         my @rev_color = (qw(light dark));
1290         my $num_colors = scalar(@rev_color);
1291         my $current_color = 0;
1292         my $last_rev;
1293         print "<div class=\"page_body\">\n";
1294         print "<table class=\"blame\">\n";
1295         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1296         while (<$fd>) {
1297                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1298                 my $full_rev = $1;
1299                 my $rev = substr($full_rev, 0, 8);
1300                 my $lineno = $2;
1301                 my $data = $3;
1302
1303                 if (!defined $last_rev) {
1304                         $last_rev = $full_rev;
1305                 } elsif ($last_rev ne $full_rev) {
1306                         $last_rev = $full_rev;
1307                         $current_color = ++$current_color % $num_colors;
1308                 }
1309                 print "<tr class=\"$rev_color[$current_color]\">\n";
1310                 print "<td class=\"sha1\">" .
1311                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
1312                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1313                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1314                 print "</tr>\n";
1315         }
1316         print "</table>\n";
1317         print "</div>";
1318         close $fd or print "Reading blob failed\n";
1319         git_footer_html();
1320 }
1321
1322 sub git_blame {
1323         my $fd;
1324         die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
1325         die_error('404 Not Found', "What file will it be, master?") if (!$file_name);
1326         $hash_base ||= git_read_head($project);
1327         die_error(undef, "Reading commit failed.") unless ($hash_base);
1328         my %co = git_read_commit($hash_base)
1329                 or die_error(undef, "Reading commit failed.");
1330         if (!defined $hash) {
1331                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1332                         or die_error(undef, "Error lookup file.");
1333         }
1334         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1335                 or die_error(undef, "Open failed.");
1336         git_header_html();
1337         print "<div class=\"page_nav\">\n" .
1338                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1339                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1340                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1341                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1342                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1343                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1344         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1345                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
1346         print "</div>\n".
1347                 "<div>" .
1348                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1349                 "</div>\n";
1350         git_print_page_path($file_name);
1351         print "<div class=\"page_body\">\n";
1352         print <<HTML;
1353 <table class="blame">
1354   <tr>
1355     <th>Commit</th>
1356     <th>Age</th>
1357     <th>Author</th>
1358     <th>Line</th>
1359     <th>Data</th>
1360   </tr>
1361 HTML
1362         my @line_class = (qw(light dark));
1363         my $line_class_len = scalar (@line_class);
1364         my $line_class_num = $#line_class;
1365         while (my $line = <$fd>) {
1366                 my $long_rev;
1367                 my $short_rev;
1368                 my $author;
1369                 my $time;
1370                 my $lineno;
1371                 my $data;
1372                 my $age;
1373                 my $age_str;
1374                 my $age_class;
1375
1376                 chomp $line;
1377                 $line_class_num = ($line_class_num + 1) % $line_class_len;
1378
1379                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1380                         $long_rev = $1;
1381                         $author   = $2;
1382                         $time     = $3;
1383                         $lineno   = $4;
1384                         $data     = $5;
1385                 } else {
1386                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1387                         next;
1388                 }
1389                 $short_rev  = substr ($long_rev, 0, 8);
1390                 $age        = time () - $time;
1391                 $age_str    = age_string ($age);
1392                 $age_str    =~ s/ /&nbsp;/g;
1393                 $age_class  = age_class($age);
1394                 $author     = esc_html ($author);
1395                 $author     =~ s/ /&nbsp;/g;
1396                 # escape tabs
1397                 while ((my $pos = index($data, "\t")) != -1) {
1398                         if (my $count = (8 - ($pos % 8))) {
1399                                 my $spaces = ' ' x $count;
1400                                 $data =~ s/\t/$spaces/;
1401                         }
1402                 }
1403                 $data = esc_html ($data);
1404
1405                 print <<HTML;
1406   <tr class="$line_class[$line_class_num]">
1407     <td class="sha1"><a href="$my_uri?${\esc_param ("p=$project;a=commit;h=$long_rev")}" class="text">$short_rev..</a></td>
1408     <td class="$age_class">$age_str</td>
1409     <td>$author</td>
1410     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1411     <td class="pre">$data</td>
1412   </tr>
1413 HTML
1414         } # while (my $line = <$fd>)
1415         print "</table>\n\n";
1416         close $fd or print "Reading blob failed.\n";
1417         print "</div>";
1418         git_footer_html();
1419 }
1420
1421 sub git_tags {
1422         my $head = git_read_head($project);
1423         git_header_html();
1424         print "<div class=\"page_nav\">\n" .
1425               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1426               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1427               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1428               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1429               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1430               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1431               "<br/>\n" .
1432               "</div>\n";
1433         my $taglist = git_read_refs("refs/tags");
1434         print "<div>\n" .
1435               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1436               "</div>\n";
1437         print "<table cellspacing=\"0\">\n";
1438         my $alternate = 0;
1439         if (defined @$taglist) {
1440                 foreach my $entry (@$taglist) {
1441                         my %tag = %$entry;
1442                         my $comment_lines = $tag{'comment'};
1443                         my $comment = shift @$comment_lines;
1444                         if (defined($comment)) {
1445                                 $comment = chop_str($comment, 30, 5);
1446                         }
1447                         if ($alternate) {
1448                                 print "<tr class=\"dark\">\n";
1449                         } else {
1450                                 print "<tr class=\"light\">\n";
1451                         }
1452                         $alternate ^= 1;
1453                         print "<td><i>$tag{'age'}</i></td>\n" .
1454                               "<td>" .
1455                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1456                               "<b>" . esc_html($tag{'name'}) . "</b>") .
1457                               "</td>\n" .
1458                               "<td>";
1459                         if (defined($comment)) {
1460                               print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1461                         }
1462                         print "</td>\n" .
1463                               "<td class=\"link\">";
1464                         if ($tag{'type'} eq "tag") {
1465                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1466                         }
1467                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1468                         if ($tag{'reftype'} eq "commit") {
1469                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1470                                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1471                         }
1472                         print "</td>\n" .
1473                               "</tr>";
1474                 }
1475         }
1476         print "</table\n>";
1477         git_footer_html();
1478 }
1479
1480 sub git_heads {
1481         my $head = git_read_head($project);
1482         git_header_html();
1483         print "<div class=\"page_nav\">\n" .
1484               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1485               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1486               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1487               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1488               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1489               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1490               "<br/>\n" .
1491               "</div>\n";
1492         my $taglist = git_read_refs("refs/heads");
1493         print "<div>\n" .
1494               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1495               "</div>\n";
1496         print "<table cellspacing=\"0\">\n";
1497         my $alternate = 0;
1498         if (defined @$taglist) {
1499                 foreach my $entry (@$taglist) {
1500                         my %tag = %$entry;
1501                         if ($alternate) {
1502                                 print "<tr class=\"dark\">\n";
1503                         } else {
1504                                 print "<tr class=\"light\">\n";
1505                         }
1506                         $alternate ^= 1;
1507                         print "<td><i>$tag{'age'}</i></td>\n" .
1508                               "<td>" .
1509                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1510                               "</td>\n" .
1511                               "<td class=\"link\">" .
1512                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1513                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1514                               "</td>\n" .
1515                               "</tr>";
1516                 }
1517         }
1518         print "</table\n>";
1519         git_footer_html();
1520 }
1521
1522 sub git_get_hash_by_path {
1523         my $base = shift;
1524         my $path = shift || return undef;
1525
1526         my $tree = $base;
1527         my @parts = split '/', $path;
1528         while (my $part = shift @parts) {
1529                 open my $fd, "-|", "$GIT ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
1530                 my (@entries) = map { chomp; $_ } <$fd>;
1531                 close $fd or return undef;
1532                 foreach my $line (@entries) {
1533                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1534                         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1535                         my $t_mode = $1;
1536                         my $t_type = $2;
1537                         my $t_hash = $3;
1538                         my $t_name = validate_input(unquote($4));
1539                         if ($t_name eq $part) {
1540                                 if (!(@parts)) {
1541                                         return $t_hash;
1542                                 }
1543                                 if ($t_type eq "tree") {
1544                                         $tree = $t_hash;
1545                                 }
1546                                 last;
1547                         }
1548                 }
1549         }
1550 }
1551
1552 sub mimetype_guess_file {
1553         my $filename = shift;
1554         my $mimemap = shift;
1555         -r $mimemap or return undef;
1556
1557         my %mimemap;
1558         open(MIME, $mimemap) or return undef;
1559         while (<MIME>) {
1560                 my ($mime, $exts) = split(/\t+/);
1561                 my @exts = split(/\s+/, $exts);
1562                 foreach my $ext (@exts) {
1563                         $mimemap{$ext} = $mime;
1564                 }
1565         }
1566         close(MIME);
1567
1568         $filename =~ /\.(.*?)$/;
1569         return $mimemap{$1};
1570 }
1571
1572 sub mimetype_guess {
1573         my $filename = shift;
1574         my $mime;
1575         $filename =~ /\./ or return undef;
1576
1577         if ($mimetypes_file) {
1578                 my $file = $mimetypes_file;
1579                 #$file =~ m#^/# or $file = "$projectroot/$path/$file";
1580                 $mime = mimetype_guess_file($filename, $file);
1581         }
1582         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1583         return $mime;
1584 }
1585
1586 sub git_blob_plain_mimetype {
1587         my $fd = shift;
1588         my $filename = shift;
1589
1590         if ($filename) {
1591                 my $mime = mimetype_guess($filename);
1592                 $mime and return $mime;
1593         }
1594
1595         # just in case
1596         return $default_blob_plain_mimetype unless $fd;
1597
1598         if (-T $fd) {
1599                 return 'text/plain' .
1600                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1601         } elsif (! $filename) {
1602                 return 'application/octet-stream';
1603         } elsif ($filename =~ m/\.png$/i) {
1604                 return 'image/png';
1605         } elsif ($filename =~ m/\.gif$/i) {
1606                 return 'image/gif';
1607         } elsif ($filename =~ m/\.jpe?g$/i) {
1608                 return 'image/jpeg';
1609         } else {
1610                 return 'application/octet-stream';
1611         }
1612 }
1613
1614 sub git_blob_plain {
1615         if (!defined $hash) {
1616                 if (defined $file_name) {
1617                         my $base = $hash_base || git_read_head($project);
1618                         $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
1619                 } else {
1620                         die_error(undef, "No file name defined.");
1621                 }
1622         }
1623         my $type = shift;
1624         open my $fd, "-|", "$GIT cat-file blob $hash" or die_error("Couldn't cat $file_name, $hash");
1625
1626         $type ||= git_blob_plain_mimetype($fd, $file_name);
1627
1628         # save as filename, even when no $file_name is given
1629         my $save_as = "$hash";
1630         if (defined $file_name) {
1631                 $save_as = $file_name;
1632         } elsif ($type =~ m/^text\//) {
1633                 $save_as .= '.txt';
1634         }
1635
1636         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1637         undef $/;
1638         binmode STDOUT, ':raw';
1639         print <$fd>;
1640         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1641         $/ = "\n";
1642         close $fd;
1643 }
1644
1645 sub git_blob {
1646         if (!defined $hash) {
1647                 if (defined $file_name) {
1648                         my $base = $hash_base || git_read_head($project);
1649                         $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
1650                 } else {
1651                         die_error(undef, "No file name defined.");
1652                 }
1653         }
1654         my $have_blame = git_get_project_config_bool ('blame');
1655         open my $fd, "-|", "$GIT cat-file blob $hash" or die_error(undef, "Open failed.");
1656         my $mimetype = git_blob_plain_mimetype($fd, $file_name);
1657         if ($mimetype !~ m/^text\//) {
1658                 close $fd;
1659                 return git_blob_plain($mimetype);
1660         }
1661         git_header_html();
1662         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1663                 print "<div class=\"page_nav\">\n" .
1664                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1665                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1666                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1667                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1668                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1669                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1670                 if (defined $file_name) {
1671                         if ($have_blame) {
1672                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") .  " | ";
1673                         }
1674                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1675                         " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
1676                 } else {
1677                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
1678                 }
1679                 print "</div>\n".
1680                        "<div>" .
1681                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1682                       "</div>\n";
1683         } else {
1684                 print "<div class=\"page_nav\">\n" .
1685                       "<br/><br/></div>\n" .
1686                       "<div class=\"title\">$hash</div>\n";
1687         }
1688         git_print_page_path($file_name, "blob");
1689         print "<div class=\"page_body\">\n";
1690         my $nr;
1691         while (my $line = <$fd>) {
1692                 chomp $line;
1693                 $nr++;
1694                 while ((my $pos = index($line, "\t")) != -1) {
1695                         if (my $count = (8 - ($pos % 8))) {
1696                                 my $spaces = ' ' x $count;
1697                                 $line =~ s/\t/$spaces/;
1698                         }
1699                 }
1700                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1701         }
1702         close $fd or print "Reading blob failed.\n";
1703         print "</div>";
1704         git_footer_html();
1705 }
1706
1707 sub git_tree {
1708         if (!defined $hash) {
1709                 $hash = git_read_head($project);
1710                 if (defined $file_name) {
1711                         my $base = $hash_base || $hash;
1712                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1713                 }
1714                 if (!defined $hash_base) {
1715                         $hash_base = $hash;
1716                 }
1717         }
1718         $/ = "\0";
1719         open my $fd, "-|", "$GIT ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
1720         chomp (my (@entries) = <$fd>);
1721         close $fd or die_error(undef, "Reading tree failed.");
1722         $/ = "\n";
1723
1724         my $refs = read_info_ref();
1725         my $ref = "";
1726         if (defined $refs->{$hash_base}) {
1727                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
1728         }
1729         git_header_html();
1730         my $base_key = "";
1731         my $base = "";
1732         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1733                 $base_key = ";hb=$hash_base";
1734                 print "<div class=\"page_nav\">\n" .
1735                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1736                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash_base")}, "shortlog") .
1737                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash_base")}, "log") .
1738                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1739                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1740                       " | tree" .
1741                       "<br/><br/>\n" .
1742                       "</div>\n";
1743                 print "<div>\n" .
1744                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1745                       "</div>\n";
1746         } else {
1747                 print "<div class=\"page_nav\">\n";
1748                 print "<br/><br/></div>\n";
1749                 print "<div class=\"title\">$hash</div>\n";
1750         }
1751         if (defined $file_name) {
1752                 $base = esc_html("$file_name/");
1753         }
1754         git_print_page_path($file_name);
1755         print "<div class=\"page_body\">\n";
1756         print "<table cellspacing=\"0\">\n";
1757         my $alternate = 0;
1758         foreach my $line (@entries) {
1759                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1760                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1761                 my $t_mode = $1;
1762                 my $t_type = $2;
1763                 my $t_hash = $3;
1764                 my $t_name = validate_input($4);
1765                 if ($alternate) {
1766                         print "<tr class=\"dark\">\n";
1767                 } else {
1768                         print "<tr class=\"light\">\n";
1769                 }
1770                 $alternate ^= 1;
1771                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
1772                 if ($t_type eq "blob") {
1773                         print "<td class=\"list\">" .
1774                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1775                               "</td>\n" .
1776                               "<td class=\"link\">" .
1777                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1778 #                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
1779                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
1780                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
1781                               "</td>\n";
1782                 } elsif ($t_type eq "tree") {
1783                         print "<td class=\"list\">" .
1784                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1785                               "</td>\n" .
1786                               "<td class=\"link\">" .
1787                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1788                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
1789                               "</td>\n";
1790                 }
1791                 print "</tr>\n";
1792         }
1793         print "</table>\n" .
1794               "</div>";
1795         git_footer_html();
1796 }
1797
1798 sub git_rss {
1799         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1800         open my $fd, "-|", "$GIT rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
1801         my (@revlist) = map { chomp; $_ } <$fd>;
1802         close $fd or die_error(undef, "Reading rev-list failed.");
1803         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1804         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1805               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1806         print "<channel>\n";
1807         print "<title>$project</title>\n".
1808               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1809               "<description>$project log</description>\n".
1810               "<language>en</language>\n";
1811
1812         for (my $i = 0; $i <= $#revlist; $i++) {
1813                 my $commit = $revlist[$i];
1814                 my %co = git_read_commit($commit);
1815                 # we read 150, we always show 30 and the ones more recent than 48 hours
1816                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1817                         last;
1818                 }
1819                 my %cd = date_str($co{'committer_epoch'});
1820                 open $fd, "-|", "$GIT diff-tree -r $co{'parent'} $co{'id'}" or next;
1821                 my @difftree = map { chomp; $_ } <$fd>;
1822                 close $fd or next;
1823                 print "<item>\n" .
1824                       "<title>" .
1825                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1826                       "</title>\n" .
1827                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1828                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1829                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1830                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1831                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1832                       "<content:encoded>" .
1833                       "<![CDATA[\n";
1834                 my $comment = $co{'comment'};
1835                 foreach my $line (@$comment) {
1836                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1837                         print "$line<br/>\n";
1838                 }
1839                 print "<br/>\n";
1840                 foreach my $line (@difftree) {
1841                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1842                                 next;
1843                         }
1844                         my $file = validate_input(unquote($7));
1845                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1846                         print "$file<br/>\n";
1847                 }
1848                 print "]]>\n" .
1849                       "</content:encoded>\n" .
1850                       "</item>\n";
1851         }
1852         print "</channel></rss>";
1853 }
1854
1855 sub git_opml {
1856         my @list = git_read_projects();
1857
1858         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1859         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1860               "<opml version=\"1.0\">\n".
1861               "<head>".
1862               "  <title>$site_name Git OPML Export</title>\n".
1863               "</head>\n".
1864               "<body>\n".
1865               "<outline text=\"git RSS feeds\">\n";
1866
1867         foreach my $pr (@list) {
1868                 my %proj = %$pr;
1869                 my $head = git_read_head($proj{'path'});
1870                 if (!defined $head) {
1871                         next;
1872                 }
1873                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1874                 my %co = git_read_commit($head);
1875                 if (!%co) {
1876                         next;
1877                 }
1878
1879                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1880                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
1881                 my $html = "$my_url?p=$proj{'path'};a=summary";
1882                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1883         }
1884         print "</outline>\n".
1885               "</body>\n".
1886               "</opml>\n";
1887 }
1888
1889 sub git_log {
1890         my $head = git_read_head($project);
1891         if (!defined $hash) {
1892                 $hash = $head;
1893         }
1894         if (!defined $page) {
1895                 $page = 0;
1896         }
1897         my $refs = read_info_ref();
1898         git_header_html();
1899         print "<div class=\"page_nav\">\n";
1900         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1901               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1902               " | log" .
1903               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
1904               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
1905               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
1906
1907         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1908         open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
1909         my (@revlist) = map { chomp; $_ } <$fd>;
1910         close $fd;
1911
1912         if ($hash ne $head || $page) {
1913                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
1914         } else {
1915                 print "HEAD";
1916         }
1917         if ($page > 0) {
1918                 print " &sdot; " .
1919                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
1920         } else {
1921                 print " &sdot; prev";
1922         }
1923         if ($#revlist >= (100 * ($page+1)-1)) {
1924                 print " &sdot; " .
1925                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
1926         } else {
1927                 print " &sdot; next";
1928         }
1929         print "<br/>\n" .
1930               "</div>\n";
1931         if (!@revlist) {
1932                 print "<div>\n" .
1933                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1934                       "</div>\n";
1935                 my %co = git_read_commit($hash);
1936                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1937         }
1938         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1939                 my $commit = $revlist[$i];
1940                 my $ref = "";
1941                 if (defined $refs->{$commit}) {
1942                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1943                 }
1944                 my %co = git_read_commit($commit);
1945                 next if !%co;
1946                 my %ad = date_str($co{'author_epoch'});
1947                 print "<div>\n" .
1948                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1949                       "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1950                 print "</div>\n";
1951                 print "<div class=\"title_text\">\n" .
1952                       "<div class=\"log_link\">\n" .
1953                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1954                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1955                       "<br/>\n" .
1956                       "</div>\n" .
1957                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1958                       "</div>\n" .
1959                       "<div class=\"log_body\">\n";
1960                 my $comment = $co{'comment'};
1961                 my $empty = 0;
1962                 foreach my $line (@$comment) {
1963                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1964                                 next;
1965                         }
1966                         if ($line eq "") {
1967                                 if ($empty) {
1968                                         next;
1969                                 }
1970                                 $empty = 1;
1971                         } else {
1972                                 $empty = 0;
1973                         }
1974                         print format_log_line_html($line) . "<br/>\n";
1975                 }
1976                 if (!$empty) {
1977                         print "<br/>\n";
1978                 }
1979                 print "</div>\n";
1980         }
1981         git_footer_html();
1982 }
1983
1984 sub git_commit {
1985         my %co = git_read_commit($hash);
1986         if (!%co) {
1987                 die_error(undef, "Unknown commit object.");
1988         }
1989         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1990         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1991
1992         my @difftree;
1993         my $root = "";
1994         my $parent = $co{'parent'};
1995         if (!defined $parent) {
1996                 $root = " --root";
1997                 $parent = "";
1998         }
1999         open my $fd, "-|", "$GIT diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
2000         @difftree = map { chomp; $_ } <$fd>;
2001         close $fd or die_error(undef, "Reading diff-tree failed.");
2002
2003         # non-textual hash id's can be cached
2004         my $expires;
2005         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2006                 $expires = "+1d";
2007         }
2008         my $refs = read_info_ref();
2009         my $ref = "";
2010         if (defined $refs->{$co{'id'}}) {
2011                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2012         }
2013         git_header_html(undef, $expires);
2014         print "<div class=\"page_nav\">\n" .
2015               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2016               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
2017               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2018               " | commit";
2019         if (defined $co{'parent'}) {
2020                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
2021         }
2022         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
2023                 "<br/>\n";
2024         if (defined $file_name && defined $co{'parent'}) {
2025                 my $parent = $co{'parent'};
2026                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame") . "\n";
2027         }
2028         print "<br/></div>\n";
2029
2030         if (defined $co{'parent'}) {
2031                 print "<div>\n" .
2032                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2033                       "</div>\n";
2034         } else {
2035                 print "<div>\n" .
2036                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2037                       "</div>\n";
2038         }
2039         print "<div class=\"title_text\">\n" .
2040               "<table cellspacing=\"0\">\n";
2041         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2042               "<tr>" .
2043               "<td></td><td> $ad{'rfc2822'}";
2044         if ($ad{'hour_local'} < 6) {
2045                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2046         } else {
2047                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2048         }
2049         print "</td>" .
2050               "</tr>\n";
2051         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2052         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2053         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2054         print "<tr>" .
2055               "<td>tree</td>" .
2056               "<td class=\"sha1\">" .
2057               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
2058               "</td>" .
2059               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2060               "</td>" .
2061               "</tr>\n";
2062         my $parents = $co{'parents'};
2063         foreach my $par (@$parents) {
2064                 print "<tr>" .
2065                       "<td>parent</td>" .
2066                       "<td class=\"sha1\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
2067                       "<td class=\"link\">" .
2068                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
2069                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
2070                       "</td>" .
2071                       "</tr>\n";
2072         }
2073         print "</table>".
2074               "</div>\n";
2075         print "<div class=\"page_body\">\n";
2076         my $comment = $co{'comment'};
2077         my $empty = 0;
2078         my $signed = 0;
2079         foreach my $line (@$comment) {
2080                 # print only one empty line
2081                 if ($line eq "") {
2082                         if ($empty || $signed) {
2083                                 next;
2084                         }
2085                         $empty = 1;
2086                 } else {
2087                         $empty = 0;
2088                 }
2089                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2090                         $signed = 1;
2091                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2092                 } else {
2093                         $signed = 0;
2094                         print format_log_line_html($line) . "<br/>\n";
2095                 }
2096         }
2097         print "</div>\n";
2098         print "<div class=\"list_head\">\n";
2099         if ($#difftree > 10) {
2100                 print(($#difftree + 1) . " files changed:\n");
2101         }
2102         print "</div>\n";
2103         print "<table class=\"diff_tree\">\n";
2104         my $alternate = 0;
2105         foreach my $line (@difftree) {
2106                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2107                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2108                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2109                         next;
2110                 }
2111                 my $from_mode = $1;
2112                 my $to_mode = $2;
2113                 my $from_id = $3;
2114                 my $to_id = $4;
2115                 my $status = $5;
2116                 my $similarity = $6;
2117                 my $file = validate_input(unquote($7));
2118                 if ($alternate) {
2119                         print "<tr class=\"dark\">\n";
2120                 } else {
2121                         print "<tr class=\"light\">\n";
2122                 }
2123                 $alternate ^= 1;
2124                 if ($status eq "A") {
2125                         my $mode_chng = "";
2126                         if (S_ISREG(oct $to_mode)) {
2127                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
2128                         }
2129                         print "<td>" .
2130                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2131                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
2132                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
2133                 } elsif ($status eq "D") {
2134                         print "<td>" .
2135                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2136                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
2137                               "<td class=\"link\">" .
2138                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
2139                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
2140                               "</td>\n"
2141                 } elsif ($status eq "M" || $status eq "T") {
2142                         my $mode_chnge = "";
2143                         if ($from_mode != $to_mode) {
2144                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
2145                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
2146                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
2147                                 }
2148                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
2149                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
2150                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
2151                                         } elsif (S_ISREG($to_mode)) {
2152                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
2153                                         }
2154                                 }
2155                                 $mode_chnge .= "]</span>\n";
2156                         }
2157                         print "<td>";
2158                         if ($to_id ne $from_id) {
2159                                 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));
2160                         } else {
2161                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2162                         }
2163                         print "</td>\n" .
2164                               "<td>$mode_chnge</td>\n" .
2165                               "<td class=\"link\">";
2166                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
2167                         if ($to_id ne $from_id) {
2168                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
2169                         }
2170                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
2171                         print "</td>\n";
2172                 } elsif ($status eq "R") {
2173                         my ($from_file, $to_file) = split "\t", $file;
2174                         my $mode_chng = "";
2175                         if ($from_mode != $to_mode) {
2176                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
2177                         }
2178                         print "<td>" .
2179                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
2180                               "<td><span class=\"file_status moved\">[moved from " .
2181                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
2182                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
2183                               "<td class=\"link\">" .
2184                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
2185                         if ($to_id ne $from_id) {
2186                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
2187                         }
2188                         print "</td>\n";
2189                 }
2190                 print "</tr>\n";
2191         }
2192         print "</table>\n";
2193         git_footer_html();
2194 }
2195
2196 sub git_blobdiff {
2197         mkdir($git_temp, 0700);
2198         git_header_html();
2199         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
2200                 print "<div class=\"page_nav\">\n" .
2201                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2202                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2203                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
2204                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
2205                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
2206                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
2207                       "<br/>\n";
2208                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain") .
2209                       "</div>\n";
2210                 print "<div>\n" .
2211                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2212                       "</div>\n";
2213         } else {
2214                 print "<div class=\"page_nav\">\n" .
2215                       "<br/><br/></div>\n" .
2216                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2217         }
2218         git_print_page_path($file_name, "blob");
2219         print "<div class=\"page_body\">\n" .
2220               "<div class=\"diff_info\">blob:" .
2221               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2222               " -> blob:" .
2223               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2224               "</div>\n";
2225         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2226         print "</div>";
2227         git_footer_html();
2228 }
2229
2230 sub git_blobdiff_plain {
2231         mkdir($git_temp, 0700);
2232         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2233         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2234 }
2235
2236 sub git_commitdiff {
2237         mkdir($git_temp, 0700);
2238         my %co = git_read_commit($hash);
2239         if (!%co) {
2240                 die_error(undef, "Unknown commit object.");
2241         }
2242         if (!defined $hash_parent) {
2243                 $hash_parent = $co{'parent'};
2244         }
2245         open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
2246         my (@difftree) = map { chomp; $_ } <$fd>;
2247         close $fd or die_error(undef, "Reading diff-tree failed.");
2248
2249         # non-textual hash id's can be cached
2250         my $expires;
2251         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2252                 $expires = "+1d";
2253         }
2254         my $refs = read_info_ref();
2255         my $ref = "";
2256         if (defined $refs->{$co{'id'}}) {
2257                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2258         }
2259         git_header_html(undef, $expires);
2260         print "<div class=\"page_nav\">\n" .
2261               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2262               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
2263               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2264               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2265               " | commitdiff" .
2266               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "<br/>\n";
2267         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain") . "\n" .
2268               "</div>\n";
2269         print "<div>\n" .
2270               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2271               "</div>\n";
2272         print "<div class=\"page_body\">\n";
2273         my $comment = $co{'comment'};
2274         my $empty = 0;
2275         my $signed = 0;
2276         my @log = @$comment;
2277         # remove first and empty lines after that
2278         shift @log;
2279         while (defined $log[0] && $log[0] eq "") {
2280                 shift @log;
2281         }
2282         foreach my $line (@log) {
2283                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2284                         next;
2285                 }
2286                 if ($line eq "") {
2287                         if ($empty) {
2288                                 next;
2289                         }
2290                         $empty = 1;
2291                 } else {
2292                         $empty = 0;
2293                 }
2294                 print format_log_line_html($line) . "<br/>\n";
2295         }
2296         print "<br/>\n";
2297         foreach my $line (@difftree) {
2298                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2299                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2300                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2301                 my $from_mode = $1;
2302                 my $to_mode = $2;
2303                 my $from_id = $3;
2304                 my $to_id = $4;
2305                 my $status = $5;
2306                 my $file = validate_input(unquote($6));
2307                 if ($status eq "A") {
2308                         print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
2309                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2310                               "</div>\n";
2311                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2312                 } elsif ($status eq "D") {
2313                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2314                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2315                               "</div>\n";
2316                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2317                 } elsif ($status eq "M") {
2318                         if ($from_id ne $to_id) {
2319                                 print "<div class=\"diff_info\">" .
2320                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2321                                       " -> " .
2322                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2323                                 print "</div>\n";
2324                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2325                         }
2326                 }
2327         }
2328         print "<br/>\n" .
2329               "</div>";
2330         git_footer_html();
2331 }
2332
2333 sub git_commitdiff_plain {
2334         mkdir($git_temp, 0700);
2335         open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
2336         my (@difftree) = map { chomp; $_ } <$fd>;
2337         close $fd or die_error(undef, "Reading diff-tree failed.");
2338
2339         # try to figure out the next tag after this commit
2340         my $tagname;
2341         my $refs = read_info_ref("tags");
2342         open $fd, "-|", "$GIT rev-list HEAD";
2343         chomp (my (@commits) = <$fd>);
2344         close $fd;
2345         foreach my $commit (@commits) {
2346                 if (defined $refs->{$commit}) {
2347                         $tagname = $refs->{$commit}
2348                 }
2349                 if ($commit eq $hash) {
2350                         last;
2351                 }
2352         }
2353
2354         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2355         my %co = git_read_commit($hash);
2356         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2357         my $comment = $co{'comment'};
2358         print "From: $co{'author'}\n" .
2359               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2360               "Subject: $co{'title'}\n";
2361         if (defined $tagname) {
2362               print "X-Git-Tag: $tagname\n";
2363         }
2364         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2365               "\n";
2366
2367         foreach my $line (@$comment) {;
2368                 print "$line\n";
2369         }
2370         print "---\n\n";
2371
2372         foreach my $line (@difftree) {
2373                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2374                 my $from_id = $3;
2375                 my $to_id = $4;
2376                 my $status = $5;
2377                 my $file = $6;
2378                 if ($status eq "A") {
2379                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2380                 } elsif ($status eq "D") {
2381                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2382                 } elsif ($status eq "M") {
2383                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2384                 }
2385         }
2386 }
2387
2388 sub git_history {
2389         if (!defined $hash_base) {
2390                 $hash_base = git_read_head($project);
2391         }
2392         my $ftype;
2393         my %co = git_read_commit($hash_base);
2394         if (!%co) {
2395                 die_error(undef, "Unknown commit object.");
2396         }
2397         my $refs = read_info_ref();
2398         git_header_html();
2399         print "<div class=\"page_nav\">\n" .
2400               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2401               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2402               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
2403               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
2404               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
2405               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
2406               "<br/><br/>\n" .
2407               "</div>\n";
2408         print "<div>\n" .
2409               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2410               "</div>\n";
2411         if (!defined $hash && defined $file_name) {
2412                 $hash = git_get_hash_by_path($hash_base, $file_name);
2413         }
2414         if (defined $hash) {
2415                 $ftype = git_get_type($hash);
2416         }
2417         git_print_page_path($file_name, $ftype);
2418
2419         open my $fd, "-|",
2420                 "$GIT rev-list --full-history $hash_base -- \'$file_name\'";
2421         print "<table cellspacing=\"0\">\n";
2422         my $alternate = 0;
2423         while (my $line = <$fd>) {
2424                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2425                         my $commit = $1;
2426                         my %co = git_read_commit($commit);
2427                         if (!%co) {
2428                                 next;
2429                         }
2430                         my $ref = "";
2431                         if (defined $refs->{$commit}) {
2432                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2433                         }
2434                         if ($alternate) {
2435                                 print "<tr class=\"dark\">\n";
2436                         } else {
2437                                 print "<tr class=\"light\">\n";
2438                         }
2439                         $alternate ^= 1;
2440                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2441                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2442                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2443                               esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
2444                               "<td class=\"link\">" .
2445                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2446                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2447                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2448                         my $blob = git_get_hash_by_path($hash_base, $file_name);
2449                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2450                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2451                                 print " | " .
2452                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2453                                 "diff to current");
2454                         }
2455                         print "</td>\n" .
2456                               "</tr>\n";
2457                 }
2458         }
2459         print "</table>\n";
2460         close $fd;
2461         git_footer_html();
2462 }
2463
2464 sub git_search {
2465         if (!defined $searchtext) {
2466                 die_error("", "Text field empty.");
2467         }
2468         if (!defined $hash) {
2469                 $hash = git_read_head($project);
2470         }
2471         my %co = git_read_commit($hash);
2472         if (!%co) {
2473                 die_error(undef, "Unknown commit object.");
2474         }
2475         # pickaxe may take all resources of your box and run for several minutes
2476         # with every query - so decide by yourself how public you make this feature :)
2477         my $commit_search = 1;
2478         my $author_search = 0;
2479         my $committer_search = 0;
2480         my $pickaxe_search = 0;
2481         if ($searchtext =~ s/^author\\://i) {
2482                 $author_search = 1;
2483         } elsif ($searchtext =~ s/^committer\\://i) {
2484                 $committer_search = 1;
2485         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2486                 $commit_search = 0;
2487                 $pickaxe_search = 1;
2488         }
2489         git_header_html();
2490         print "<div class=\"page_nav\">\n" .
2491               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary;h=$hash")}, "summary") .
2492               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2493               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2494               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2495               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2496               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2497               "<br/><br/>\n" .
2498               "</div>\n";
2499
2500         print "<div>\n" .
2501               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2502               "</div>\n";
2503         print "<table cellspacing=\"0\">\n";
2504         my $alternate = 0;
2505         if ($commit_search) {
2506                 $/ = "\0";
2507                 open my $fd, "-|", "$GIT rev-list --header --parents $hash" or next;
2508                 while (my $commit_text = <$fd>) {
2509                         if (!grep m/$searchtext/i, $commit_text) {
2510                                 next;
2511                         }
2512                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2513                                 next;
2514                         }
2515                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2516                                 next;
2517                         }
2518                         my @commit_lines = split "\n", $commit_text;
2519                         my %co = git_read_commit(undef, \@commit_lines);
2520                         if (!%co) {
2521                                 next;
2522                         }
2523                         if ($alternate) {
2524                                 print "<tr class=\"dark\">\n";
2525                         } else {
2526                                 print "<tr class=\"light\">\n";
2527                         }
2528                         $alternate ^= 1;
2529                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2530                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2531                               "<td>" .
2532                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2533                         my $comment = $co{'comment'};
2534                         foreach my $line (@$comment) {
2535                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2536                                         my $lead = esc_html($1) || "";
2537                                         $lead = chop_str($lead, 30, 10);
2538                                         my $match = esc_html($2) || "";
2539                                         my $trail = esc_html($3) || "";
2540                                         $trail = chop_str($trail, 30, 10);
2541                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2542                                         print chop_str($text, 80, 5) . "<br/>\n";
2543                                 }
2544                         }
2545                         print "</td>\n" .
2546                               "<td class=\"link\">" .
2547                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2548                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2549                         print "</td>\n" .
2550                               "</tr>\n";
2551                 }
2552                 close $fd;
2553         }
2554
2555         if ($pickaxe_search) {
2556                 $/ = "\n";
2557                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2558                 undef %co;
2559                 my @files;
2560                 while (my $line = <$fd>) {
2561                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2562                                 my %set;
2563                                 $set{'file'} = $6;
2564                                 $set{'from_id'} = $3;
2565                                 $set{'to_id'} = $4;
2566                                 $set{'id'} = $set{'to_id'};
2567                                 if ($set{'id'} =~ m/0{40}/) {
2568                                         $set{'id'} = $set{'from_id'};
2569                                 }
2570                                 if ($set{'id'} =~ m/0{40}/) {
2571                                         next;
2572                                 }
2573                                 push @files, \%set;
2574                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2575                                 if (%co) {
2576                                         if ($alternate) {
2577                                                 print "<tr class=\"dark\">\n";
2578                                         } else {
2579                                                 print "<tr class=\"light\">\n";
2580                                         }
2581                                         $alternate ^= 1;
2582                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2583                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2584                                               "<td>" .
2585                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2586                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2587                                         while (my $setref = shift @files) {
2588                                                 my %set = %$setref;
2589                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2590                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2591                                                       "<br/>\n";
2592                                         }
2593                                         print "</td>\n" .
2594                                               "<td class=\"link\">" .
2595                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2596                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2597                                         print "</td>\n" .
2598                                               "</tr>\n";
2599                                 }
2600                                 %co = git_read_commit($1);
2601                         }
2602                 }
2603                 close $fd;
2604         }
2605         print "</table>\n";
2606         git_footer_html();
2607 }
2608
2609 sub git_shortlog {
2610         my $head = git_read_head($project);
2611         if (!defined $hash) {
2612                 $hash = $head;
2613         }
2614         if (!defined $page) {
2615                 $page = 0;
2616         }
2617         my $refs = read_info_ref();
2618         git_header_html();
2619         print "<div class=\"page_nav\">\n" .
2620               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2621               " | shortlog" .
2622               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2623               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2624               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2625               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
2626
2627         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2628         open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
2629         my (@revlist) = map { chomp; $_ } <$fd>;
2630         close $fd;
2631
2632         if ($hash ne $head || $page) {
2633                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
2634         } else {
2635                 print "HEAD";
2636         }
2637         if ($page > 0) {
2638                 print " &sdot; " .
2639                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
2640         } else {
2641                 print " &sdot; prev";
2642         }
2643         if ($#revlist >= (100 * ($page+1)-1)) {
2644                 print " &sdot; " .
2645                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
2646         } else {
2647                 print " &sdot; next";
2648         }
2649         print "<br/>\n" .
2650               "</div>\n";
2651         print "<div>\n" .
2652               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2653               "</div>\n";
2654         print "<table cellspacing=\"0\">\n";
2655         my $alternate = 0;
2656         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2657                 my $commit = $revlist[$i];
2658                 my $ref = "";
2659                 if (defined $refs->{$commit}) {
2660                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2661                 }
2662                 my %co = git_read_commit($commit);
2663                 my %ad = date_str($co{'author_epoch'});
2664                 if ($alternate) {
2665                         print "<tr class=\"dark\">\n";
2666                 } else {
2667                         print "<tr class=\"light\">\n";
2668                 }
2669                 $alternate ^= 1;
2670                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2671                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2672                       "<td>";
2673                 if (length($co{'title_short'}) < length($co{'title'})) {
2674                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2675                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2676                 } else {
2677                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2678                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2679                 }
2680                 print "</td>\n" .
2681                       "<td class=\"link\">" .
2682                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2683                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2684                       "</td>\n" .
2685                       "</tr>";
2686         }
2687         if ($#revlist >= (100 * ($page+1)-1)) {
2688                 print "<tr>\n" .
2689                       "<td>" .
2690                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2691                       "</td>\n" .
2692                       "</tr>\n";
2693         }
2694         print "</table\n>";
2695         git_footer_html();
2696 }