Make git-add behave more sensibly in a case-insensitive environment
[git/git.git] / gitweb / gitweb.perl
1 #!/usr/bin/perl
2
3 # gitweb - simple web interface to track changes in git repositories
4 #
5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
6 # (C) 2005, Christian Gierke
7 #
8 # This program is licensed under the GPLv2
9
10 use strict;
11 use warnings;
12 use CGI qw(:standard :escapeHTML -nosticky);
13 use CGI::Util qw(unescape);
14 use CGI::Carp qw(fatalsToBrowser);
15 use Encode;
16 use Fcntl ':mode';
17 use File::Find qw();
18 use File::Basename qw(basename);
19 binmode STDOUT, ':utf8';
20
21 BEGIN {
22 CGI->compile() if $ENV{'MOD_PERL'};
23 }
24
25 our $cgi = new CGI;
26 our $version = "++GIT_VERSION++";
27 our $my_url = $cgi->url();
28 our $my_uri = $cgi->url(-absolute => 1);
29
30 # core git executable to use
31 # this can just be "git" if your webserver has a sensible PATH
32 our $GIT = "++GIT_BINDIR++/git";
33
34 # absolute fs-path which will be prepended to the project path
35 #our $projectroot = "/pub/scm";
36 our $projectroot = "++GITWEB_PROJECTROOT++";
37
38 # fs traversing limit for getting project list
39 # the number is relative to the projectroot
40 our $project_maxdepth = "++GITWEB_PROJECT_MAXDEPTH++";
41
42 # target of the home link on top of all pages
43 our $home_link = $my_uri || "/";
44
45 # string of the home link on top of all pages
46 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
47
48 # name of your site or organization to appear in page titles
49 # replace this with something more descriptive for clearer bookmarks
50 our $site_name = "++GITWEB_SITENAME++"
51 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
52
53 # filename of html text to include at top of each page
54 our $site_header = "++GITWEB_SITE_HEADER++";
55 # html text to include at home page
56 our $home_text = "++GITWEB_HOMETEXT++";
57 # filename of html text to include at bottom of each page
58 our $site_footer = "++GITWEB_SITE_FOOTER++";
59
60 # URI of stylesheets
61 our @stylesheets = ("++GITWEB_CSS++");
62 # URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
63 our $stylesheet = undef;
64 # URI of GIT logo (72x27 size)
65 our $logo = "++GITWEB_LOGO++";
66 # URI of GIT favicon, assumed to be image/png type
67 our $favicon = "++GITWEB_FAVICON++";
68
69 # URI and label (title) of GIT logo link
70 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
71 #our $logo_label = "git documentation";
72 our $logo_url = "http://git.or.cz/";
73 our $logo_label = "git homepage";
74
75 # source of projects list
76 our $projects_list = "++GITWEB_LIST++";
77
78 # the width (in characters) of the projects list "Description" column
79 our $projects_list_description_width = 25;
80
81 # default order of projects list
82 # valid values are none, project, descr, owner, and age
83 our $default_projects_order = "project";
84
85 # show repository only if this file exists
86 # (only effective if this variable evaluates to true)
87 our $export_ok = "++GITWEB_EXPORT_OK++";
88
89 # only allow viewing of repositories also shown on the overview page
90 our $strict_export = "++GITWEB_STRICT_EXPORT++";
91
92 # list of git base URLs used for URL to where fetch project from,
93 # i.e. full URL is "$git_base_url/$project"
94 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
95
96 # default blob_plain mimetype and default charset for text/plain blob
97 our $default_blob_plain_mimetype = 'text/plain';
98 our $default_text_plain_charset = undef;
99
100 # file to use for guessing MIME types before trying /etc/mime.types
101 # (relative to the current git repository)
102 our $mimetypes_file = undef;
103
104 # assume this charset if line contains non-UTF-8 characters;
105 # it should be valid encoding (see Encoding::Supported(3pm) for list),
106 # for which encoding all byte sequences are valid, for example
107 # 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
108 # could be even 'utf-8' for the old behavior)
109 our $fallback_encoding = 'latin1';
110
111 # rename detection options for git-diff and git-diff-tree
112 # - default is '-M', with the cost proportional to
113 # (number of removed files) * (number of new files).
114 # - more costly is '-C' (which implies '-M'), with the cost proportional to
115 # (number of changed files + number of removed files) * (number of new files)
116 # - even more costly is '-C', '--find-copies-harder' with cost
117 # (number of files in the original tree) * (number of new files)
118 # - one might want to include '-B' option, e.g. '-B', '-M'
119 our @diff_opts = ('-M'); # taken from git_commit
120
121 # information about snapshot formats that gitweb is capable of serving
122 our %known_snapshot_formats = (
123 # name => {
124 # 'display' => display name,
125 # 'type' => mime type,
126 # 'suffix' => filename suffix,
127 # 'format' => --format for git-archive,
128 # 'compressor' => [compressor command and arguments]
129 # (array reference, optional)}
130 #
131 'tgz' => {
132 'display' => 'tar.gz',
133 'type' => 'application/x-gzip',
134 'suffix' => '.tar.gz',
135 'format' => 'tar',
136 'compressor' => ['gzip']},
137
138 'tbz2' => {
139 'display' => 'tar.bz2',
140 'type' => 'application/x-bzip2',
141 'suffix' => '.tar.bz2',
142 'format' => 'tar',
143 'compressor' => ['bzip2']},
144
145 'zip' => {
146 'display' => 'zip',
147 'type' => 'application/x-zip',
148 'suffix' => '.zip',
149 'format' => 'zip'},
150 );
151
152 # Aliases so we understand old gitweb.snapshot values in repository
153 # configuration.
154 our %known_snapshot_format_aliases = (
155 'gzip' => 'tgz',
156 'bzip2' => 'tbz2',
157
158 # backward compatibility: legacy gitweb config support
159 'x-gzip' => undef, 'gz' => undef,
160 'x-bzip2' => undef, 'bz2' => undef,
161 'x-zip' => undef, '' => undef,
162 );
163
164 # You define site-wide feature defaults here; override them with
165 # $GITWEB_CONFIG as necessary.
166 our %feature = (
167 # feature => {
168 # 'sub' => feature-sub (subroutine),
169 # 'override' => allow-override (boolean),
170 # 'default' => [ default options...] (array reference)}
171 #
172 # if feature is overridable (it means that allow-override has true value),
173 # then feature-sub will be called with default options as parameters;
174 # return value of feature-sub indicates if to enable specified feature
175 #
176 # if there is no 'sub' key (no feature-sub), then feature cannot be
177 # overriden
178 #
179 # use gitweb_check_feature(<feature>) to check if <feature> is enabled
180
181 # Enable the 'blame' blob view, showing the last commit that modified
182 # each line in the file. This can be very CPU-intensive.
183
184 # To enable system wide have in $GITWEB_CONFIG
185 # $feature{'blame'}{'default'} = [1];
186 # To have project specific config enable override in $GITWEB_CONFIG
187 # $feature{'blame'}{'override'} = 1;
188 # and in project config gitweb.blame = 0|1;
189 'blame' => {
190 'sub' => \&feature_blame,
191 'override' => 0,
192 'default' => [0]},
193
194 # Enable the 'snapshot' link, providing a compressed archive of any
195 # tree. This can potentially generate high traffic if you have large
196 # project.
197
198 # Value is a list of formats defined in %known_snapshot_formats that
199 # you wish to offer.
200 # To disable system wide have in $GITWEB_CONFIG
201 # $feature{'snapshot'}{'default'} = [];
202 # To have project specific config enable override in $GITWEB_CONFIG
203 # $feature{'snapshot'}{'override'} = 1;
204 # and in project config, a comma-separated list of formats or "none"
205 # to disable. Example: gitweb.snapshot = tbz2,zip;
206 'snapshot' => {
207 'sub' => \&feature_snapshot,
208 'override' => 0,
209 'default' => ['tgz']},
210
211 # Enable text search, which will list the commits which match author,
212 # committer or commit text to a given string. Enabled by default.
213 # Project specific override is not supported.
214 'search' => {
215 'override' => 0,
216 'default' => [1]},
217
218 # Enable grep search, which will list the files in currently selected
219 # tree containing the given string. Enabled by default. This can be
220 # potentially CPU-intensive, of course.
221
222 # To enable system wide have in $GITWEB_CONFIG
223 # $feature{'grep'}{'default'} = [1];
224 # To have project specific config enable override in $GITWEB_CONFIG
225 # $feature{'grep'}{'override'} = 1;
226 # and in project config gitweb.grep = 0|1;
227 'grep' => {
228 'override' => 0,
229 'default' => [1]},
230
231 # Enable the pickaxe search, which will list the commits that modified
232 # a given string in a file. This can be practical and quite faster
233 # alternative to 'blame', but still potentially CPU-intensive.
234
235 # To enable system wide have in $GITWEB_CONFIG
236 # $feature{'pickaxe'}{'default'} = [1];
237 # To have project specific config enable override in $GITWEB_CONFIG
238 # $feature{'pickaxe'}{'override'} = 1;
239 # and in project config gitweb.pickaxe = 0|1;
240 'pickaxe' => {
241 'sub' => \&feature_pickaxe,
242 'override' => 0,
243 'default' => [1]},
244
245 # Make gitweb use an alternative format of the URLs which can be
246 # more readable and natural-looking: project name is embedded
247 # directly in the path and the query string contains other
248 # auxiliary information. All gitweb installations recognize
249 # URL in either format; this configures in which formats gitweb
250 # generates links.
251
252 # To enable system wide have in $GITWEB_CONFIG
253 # $feature{'pathinfo'}{'default'} = [1];
254 # Project specific override is not supported.
255
256 # Note that you will need to change the default location of CSS,
257 # favicon, logo and possibly other files to an absolute URL. Also,
258 # if gitweb.cgi serves as your indexfile, you will need to force
259 # $my_uri to contain the script name in your $GITWEB_CONFIG.
260 'pathinfo' => {
261 'override' => 0,
262 'default' => [0]},
263
264 # Make gitweb consider projects in project root subdirectories
265 # to be forks of existing projects. Given project $projname.git,
266 # projects matching $projname/*.git will not be shown in the main
267 # projects list, instead a '+' mark will be added to $projname
268 # there and a 'forks' view will be enabled for the project, listing
269 # all the forks. If project list is taken from a file, forks have
270 # to be listed after the main project.
271
272 # To enable system wide have in $GITWEB_CONFIG
273 # $feature{'forks'}{'default'} = [1];
274 # Project specific override is not supported.
275 'forks' => {
276 'override' => 0,
277 'default' => [0]},
278 );
279
280 sub gitweb_check_feature {
281 my ($name) = @_;
282 return unless exists $feature{$name};
283 my ($sub, $override, @defaults) = (
284 $feature{$name}{'sub'},
285 $feature{$name}{'override'},
286 @{$feature{$name}{'default'}});
287 if (!$override) { return @defaults; }
288 if (!defined $sub) {
289 warn "feature $name is not overrideable";
290 return @defaults;
291 }
292 return $sub->(@defaults);
293 }
294
295 sub feature_blame {
296 my ($val) = git_get_project_config('blame', '--bool');
297
298 if ($val eq 'true') {
299 return 1;
300 } elsif ($val eq 'false') {
301 return 0;
302 }
303
304 return $_[0];
305 }
306
307 sub feature_snapshot {
308 my (@fmts) = @_;
309
310 my ($val) = git_get_project_config('snapshot');
311
312 if ($val) {
313 @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
314 }
315
316 return @fmts;
317 }
318
319 sub feature_grep {
320 my ($val) = git_get_project_config('grep', '--bool');
321
322 if ($val eq 'true') {
323 return (1);
324 } elsif ($val eq 'false') {
325 return (0);
326 }
327
328 return ($_[0]);
329 }
330
331 sub feature_pickaxe {
332 my ($val) = git_get_project_config('pickaxe', '--bool');
333
334 if ($val eq 'true') {
335 return (1);
336 } elsif ($val eq 'false') {
337 return (0);
338 }
339
340 return ($_[0]);
341 }
342
343 # checking HEAD file with -e is fragile if the repository was
344 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
345 # and then pruned.
346 sub check_head_link {
347 my ($dir) = @_;
348 my $headfile = "$dir/HEAD";
349 return ((-e $headfile) ||
350 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
351 }
352
353 sub check_export_ok {
354 my ($dir) = @_;
355 return (check_head_link($dir) &&
356 (!$export_ok || -e "$dir/$export_ok"));
357 }
358
359 # process alternate names for backward compatibility
360 # filter out unsupported (unknown) snapshot formats
361 sub filter_snapshot_fmts {
362 my @fmts = @_;
363
364 @fmts = map {
365 exists $known_snapshot_format_aliases{$_} ?
366 $known_snapshot_format_aliases{$_} : $_} @fmts;
367 @fmts = grep(exists $known_snapshot_formats{$_}, @fmts);
368
369 }
370
371 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
372 if (-e $GITWEB_CONFIG) {
373 do $GITWEB_CONFIG;
374 } else {
375 our $GITWEB_CONFIG_SYSTEM = $ENV{'GITWEB_CONFIG_SYSTEM'} || "++GITWEB_CONFIG_SYSTEM++";
376 do $GITWEB_CONFIG_SYSTEM if -e $GITWEB_CONFIG_SYSTEM;
377 }
378
379 # version of the core git binary
380 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
381
382 $projects_list ||= $projectroot;
383
384 # ======================================================================
385 # input validation and dispatch
386 our $action = $cgi->param('a');
387 if (defined $action) {
388 if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
389 die_error(undef, "Invalid action parameter");
390 }
391 }
392
393 # parameters which are pathnames
394 our $project = $cgi->param('p');
395 if (defined $project) {
396 if (!validate_pathname($project) ||
397 !(-d "$projectroot/$project") ||
398 !check_head_link("$projectroot/$project") ||
399 ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
400 ($strict_export && !project_in_list($project))) {
401 undef $project;
402 die_error(undef, "No such project");
403 }
404 }
405
406 our $file_name = $cgi->param('f');
407 if (defined $file_name) {
408 if (!validate_pathname($file_name)) {
409 die_error(undef, "Invalid file parameter");
410 }
411 }
412
413 our $file_parent = $cgi->param('fp');
414 if (defined $file_parent) {
415 if (!validate_pathname($file_parent)) {
416 die_error(undef, "Invalid file parent parameter");
417 }
418 }
419
420 # parameters which are refnames
421 our $hash = $cgi->param('h');
422 if (defined $hash) {
423 if (!validate_refname($hash)) {
424 die_error(undef, "Invalid hash parameter");
425 }
426 }
427
428 our $hash_parent = $cgi->param('hp');
429 if (defined $hash_parent) {
430 if (!validate_refname($hash_parent)) {
431 die_error(undef, "Invalid hash parent parameter");
432 }
433 }
434
435 our $hash_base = $cgi->param('hb');
436 if (defined $hash_base) {
437 if (!validate_refname($hash_base)) {
438 die_error(undef, "Invalid hash base parameter");
439 }
440 }
441
442 my %allowed_options = (
443 "--no-merges" => [ qw(rss atom log shortlog history) ],
444 );
445
446 our @extra_options = $cgi->param('opt');
447 if (defined @extra_options) {
448 foreach my $opt (@extra_options) {
449 if (not exists $allowed_options{$opt}) {
450 die_error(undef, "Invalid option parameter");
451 }
452 if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
453 die_error(undef, "Invalid option parameter for this action");
454 }
455 }
456 }
457
458 our $hash_parent_base = $cgi->param('hpb');
459 if (defined $hash_parent_base) {
460 if (!validate_refname($hash_parent_base)) {
461 die_error(undef, "Invalid hash parent base parameter");
462 }
463 }
464
465 # other parameters
466 our $page = $cgi->param('pg');
467 if (defined $page) {
468 if ($page =~ m/[^0-9]/) {
469 die_error(undef, "Invalid page parameter");
470 }
471 }
472
473 our $searchtype = $cgi->param('st');
474 if (defined $searchtype) {
475 if ($searchtype =~ m/[^a-z]/) {
476 die_error(undef, "Invalid searchtype parameter");
477 }
478 }
479
480 our $search_use_regexp = $cgi->param('sr');
481
482 our $searchtext = $cgi->param('s');
483 our $search_regexp;
484 if (defined $searchtext) {
485 if (length($searchtext) < 2) {
486 die_error(undef, "At least two characters are required for search parameter");
487 }
488 $search_regexp = $search_use_regexp ? $searchtext : quotemeta $searchtext;
489 }
490
491 # now read PATH_INFO and use it as alternative to parameters
492 sub evaluate_path_info {
493 return if defined $project;
494 my $path_info = $ENV{"PATH_INFO"};
495 return if !$path_info;
496 $path_info =~ s,^/+,,;
497 return if !$path_info;
498 # find which part of PATH_INFO is project
499 $project = $path_info;
500 $project =~ s,/+$,,;
501 while ($project && !check_head_link("$projectroot/$project")) {
502 $project =~ s,/*[^/]*$,,;
503 }
504 # validate project
505 $project = validate_pathname($project);
506 if (!$project ||
507 ($export_ok && !-e "$projectroot/$project/$export_ok") ||
508 ($strict_export && !project_in_list($project))) {
509 undef $project;
510 return;
511 }
512 # do not change any parameters if an action is given using the query string
513 return if $action;
514 $path_info =~ s,^$project/*,,;
515 my ($refname, $pathname) = split(/:/, $path_info, 2);
516 if (defined $pathname) {
517 # we got "project.git/branch:filename" or "project.git/branch:dir/"
518 # we could use git_get_type(branch:pathname), but it needs $git_dir
519 $pathname =~ s,^/+,,;
520 if (!$pathname || substr($pathname, -1) eq "/") {
521 $action ||= "tree";
522 $pathname =~ s,/$,,;
523 } else {
524 $action ||= "blob_plain";
525 }
526 $hash_base ||= validate_refname($refname);
527 $file_name ||= validate_pathname($pathname);
528 } elsif (defined $refname) {
529 # we got "project.git/branch"
530 $action ||= "shortlog";
531 $hash ||= validate_refname($refname);
532 }
533 }
534 evaluate_path_info();
535
536 # path to the current git repository
537 our $git_dir;
538 $git_dir = "$projectroot/$project" if $project;
539
540 # dispatch
541 my %actions = (
542 "blame" => \&git_blame2,
543 "blobdiff" => \&git_blobdiff,
544 "blobdiff_plain" => \&git_blobdiff_plain,
545 "blob" => \&git_blob,
546 "blob_plain" => \&git_blob_plain,
547 "commitdiff" => \&git_commitdiff,
548 "commitdiff_plain" => \&git_commitdiff_plain,
549 "commit" => \&git_commit,
550 "forks" => \&git_forks,
551 "heads" => \&git_heads,
552 "history" => \&git_history,
553 "log" => \&git_log,
554 "rss" => \&git_rss,
555 "atom" => \&git_atom,
556 "search" => \&git_search,
557 "search_help" => \&git_search_help,
558 "shortlog" => \&git_shortlog,
559 "summary" => \&git_summary,
560 "tag" => \&git_tag,
561 "tags" => \&git_tags,
562 "tree" => \&git_tree,
563 "snapshot" => \&git_snapshot,
564 "object" => \&git_object,
565 # those below don't need $project
566 "opml" => \&git_opml,
567 "project_list" => \&git_project_list,
568 "project_index" => \&git_project_index,
569 );
570
571 if (!defined $action) {
572 if (defined $hash) {
573 $action = git_get_type($hash);
574 } elsif (defined $hash_base && defined $file_name) {
575 $action = git_get_type("$hash_base:$file_name");
576 } elsif (defined $project) {
577 $action = 'summary';
578 } else {
579 $action = 'project_list';
580 }
581 }
582 if (!defined($actions{$action})) {
583 die_error(undef, "Unknown action");
584 }
585 if ($action !~ m/^(opml|project_list|project_index)$/ &&
586 !$project) {
587 die_error(undef, "Project needed");
588 }
589 $actions{$action}->();
590 exit;
591
592 ## ======================================================================
593 ## action links
594
595 sub href(%) {
596 my %params = @_;
597 # default is to use -absolute url() i.e. $my_uri
598 my $href = $params{-full} ? $my_url : $my_uri;
599
600 # XXX: Warning: If you touch this, check the search form for updating,
601 # too.
602
603 my @mapping = (
604 project => "p",
605 action => "a",
606 file_name => "f",
607 file_parent => "fp",
608 hash => "h",
609 hash_parent => "hp",
610 hash_base => "hb",
611 hash_parent_base => "hpb",
612 page => "pg",
613 order => "o",
614 searchtext => "s",
615 searchtype => "st",
616 snapshot_format => "sf",
617 extra_options => "opt",
618 search_use_regexp => "sr",
619 );
620 my %mapping = @mapping;
621
622 $params{'project'} = $project unless exists $params{'project'};
623
624 if ($params{-replay}) {
625 while (my ($name, $symbol) = each %mapping) {
626 if (!exists $params{$name}) {
627 # to allow for multivalued params we use arrayref form
628 $params{$name} = [ $cgi->param($symbol) ];
629 }
630 }
631 }
632
633 my ($use_pathinfo) = gitweb_check_feature('pathinfo');
634 if ($use_pathinfo) {
635 # use PATH_INFO for project name
636 $href .= "/$params{'project'}" if defined $params{'project'};
637 delete $params{'project'};
638
639 # Summary just uses the project path URL
640 if (defined $params{'action'} && $params{'action'} eq 'summary') {
641 delete $params{'action'};
642 }
643 }
644
645 # now encode the parameters explicitly
646 my @result = ();
647 for (my $i = 0; $i < @mapping; $i += 2) {
648 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
649 if (defined $params{$name}) {
650 if (ref($params{$name}) eq "ARRAY") {
651 foreach my $par (@{$params{$name}}) {
652 push @result, $symbol . "=" . esc_param($par);
653 }
654 } else {
655 push @result, $symbol . "=" . esc_param($params{$name});
656 }
657 }
658 }
659 $href .= "?" . join(';', @result) if scalar @result;
660
661 return $href;
662 }
663
664
665 ## ======================================================================
666 ## validation, quoting/unquoting and escaping
667
668 sub validate_pathname {
669 my $input = shift || return undef;
670
671 # no '.' or '..' as elements of path, i.e. no '.' nor '..'
672 # at the beginning, at the end, and between slashes.
673 # also this catches doubled slashes
674 if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
675 return undef;
676 }
677 # no null characters
678 if ($input =~ m!\0!) {
679 return undef;
680 }
681 return $input;
682 }
683
684 sub validate_refname {
685 my $input = shift || return undef;
686
687 # textual hashes are O.K.
688 if ($input =~ m/^[0-9a-fA-F]{40}$/) {
689 return $input;
690 }
691 # it must be correct pathname
692 $input = validate_pathname($input)
693 or return undef;
694 # restrictions on ref name according to git-check-ref-format
695 if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
696 return undef;
697 }
698 return $input;
699 }
700
701 # decode sequences of octets in utf8 into Perl's internal form,
702 # which is utf-8 with utf8 flag set if needed. gitweb writes out
703 # in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
704 sub to_utf8 {
705 my $str = shift;
706 if (utf8::valid($str)) {
707 utf8::decode($str);
708 return $str;
709 } else {
710 return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
711 }
712 }
713
714 # quote unsafe chars, but keep the slash, even when it's not
715 # correct, but quoted slashes look too horrible in bookmarks
716 sub esc_param {
717 my $str = shift;
718 $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
719 $str =~ s/\+/%2B/g;
720 $str =~ s/ /\+/g;
721 return $str;
722 }
723
724 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
725 sub esc_url {
726 my $str = shift;
727 $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
728 $str =~ s/\+/%2B/g;
729 $str =~ s/ /\+/g;
730 return $str;
731 }
732
733 # replace invalid utf8 character with SUBSTITUTION sequence
734 sub esc_html ($;%) {
735 my $str = shift;
736 my %opts = @_;
737
738 $str = to_utf8($str);
739 $str = $cgi->escapeHTML($str);
740 if ($opts{'-nbsp'}) {
741 $str =~ s/ /&nbsp;/g;
742 }
743 $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
744 return $str;
745 }
746
747 # quote control characters and escape filename to HTML
748 sub esc_path {
749 my $str = shift;
750 my %opts = @_;
751
752 $str = to_utf8($str);
753 $str = $cgi->escapeHTML($str);
754 if ($opts{'-nbsp'}) {
755 $str =~ s/ /&nbsp;/g;
756 }
757 $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
758 return $str;
759 }
760
761 # Make control characters "printable", using character escape codes (CEC)
762 sub quot_cec {
763 my $cntrl = shift;
764 my %opts = @_;
765 my %es = ( # character escape codes, aka escape sequences
766 "\t" => '\t', # tab (HT)
767 "\n" => '\n', # line feed (LF)
768 "\r" => '\r', # carrige return (CR)
769 "\f" => '\f', # form feed (FF)
770 "\b" => '\b', # backspace (BS)
771 "\a" => '\a', # alarm (bell) (BEL)
772 "\e" => '\e', # escape (ESC)
773 "\013" => '\v', # vertical tab (VT)
774 "\000" => '\0', # nul character (NUL)
775 );
776 my $chr = ( (exists $es{$cntrl})
777 ? $es{$cntrl}
778 : sprintf('\%03o', ord($cntrl)) );
779 if ($opts{-nohtml}) {
780 return $chr;
781 } else {
782 return "<span class=\"cntrl\">$chr</span>";
783 }
784 }
785
786 # Alternatively use unicode control pictures codepoints,
787 # Unicode "printable representation" (PR)
788 sub quot_upr {
789 my $cntrl = shift;
790 my %opts = @_;
791
792 my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
793 if ($opts{-nohtml}) {
794 return $chr;
795 } else {
796 return "<span class=\"cntrl\">$chr</span>";
797 }
798 }
799
800 # git may return quoted and escaped filenames
801 sub unquote {
802 my $str = shift;
803
804 sub unq {
805 my $seq = shift;
806 my %es = ( # character escape codes, aka escape sequences
807 't' => "\t", # tab (HT, TAB)
808 'n' => "\n", # newline (NL)
809 'r' => "\r", # return (CR)
810 'f' => "\f", # form feed (FF)
811 'b' => "\b", # backspace (BS)
812 'a' => "\a", # alarm (bell) (BEL)
813 'e' => "\e", # escape (ESC)
814 'v' => "\013", # vertical tab (VT)
815 );
816
817 if ($seq =~ m/^[0-7]{1,3}$/) {
818 # octal char sequence
819 return chr(oct($seq));
820 } elsif (exists $es{$seq}) {
821 # C escape sequence, aka character escape code
822 return $es{$seq};
823 }
824 # quoted ordinary character
825 return $seq;
826 }
827
828 if ($str =~ m/^"(.*)"$/) {
829 # needs unquoting
830 $str = $1;
831 $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
832 }
833 return $str;
834 }
835
836 # escape tabs (convert tabs to spaces)
837 sub untabify {
838 my $line = shift;
839
840 while ((my $pos = index($line, "\t")) != -1) {
841 if (my $count = (8 - ($pos % 8))) {
842 my $spaces = ' ' x $count;
843 $line =~ s/\t/$spaces/;
844 }
845 }
846
847 return $line;
848 }
849
850 sub project_in_list {
851 my $project = shift;
852 my @list = git_get_projects_list();
853 return @list && scalar(grep { $_->{'path'} eq $project } @list);
854 }
855
856 ## ----------------------------------------------------------------------
857 ## HTML aware string manipulation
858
859 # Try to chop given string on a word boundary between position
860 # $len and $len+$add_len. If there is no word boundary there,
861 # chop at $len+$add_len. Do not chop if chopped part plus ellipsis
862 # (marking chopped part) would be longer than given string.
863 sub chop_str {
864 my $str = shift;
865 my $len = shift;
866 my $add_len = shift || 10;
867 my $where = shift || 'right'; # 'left' | 'center' | 'right'
868
869 # allow only $len chars, but don't cut a word if it would fit in $add_len
870 # if it doesn't fit, cut it if it's still longer than the dots we would add
871 # remove chopped character entities entirely
872
873 # when chopping in the middle, distribute $len into left and right part
874 # return early if chopping wouldn't make string shorter
875 if ($where eq 'center') {
876 return $str if ($len + 5 >= length($str)); # filler is length 5
877 $len = int($len/2);
878 } else {
879 return $str if ($len + 4 >= length($str)); # filler is length 4
880 }
881
882 # regexps: ending and beginning with word part up to $add_len
883 my $endre = qr/.{$len}\w{0,$add_len}/;
884 my $begre = qr/\w{0,$add_len}.{$len}/;
885
886 if ($where eq 'left') {
887 $str =~ m/^(.*?)($begre)$/;
888 my ($lead, $body) = ($1, $2);
889 if (length($lead) > 4) {
890 $body =~ s/^[^;]*;// if ($lead =~ m/&[^;]*$/);
891 $lead = " ...";
892 }
893 return "$lead$body";
894
895 } elsif ($where eq 'center') {
896 $str =~ m/^($endre)(.*)$/;
897 my ($left, $str) = ($1, $2);
898 $str =~ m/^(.*?)($begre)$/;
899 my ($mid, $right) = ($1, $2);
900 if (length($mid) > 5) {
901 $left =~ s/&[^;]*$//;
902 $right =~ s/^[^;]*;// if ($mid =~ m/&[^;]*$/);
903 $mid = " ... ";
904 }
905 return "$left$mid$right";
906
907 } else {
908 $str =~ m/^($endre)(.*)$/;
909 my $body = $1;
910 my $tail = $2;
911 if (length($tail) > 4) {
912 $body =~ s/&[^;]*$//;
913 $tail = "... ";
914 }
915 return "$body$tail";
916 }
917 }
918
919 # takes the same arguments as chop_str, but also wraps a <span> around the
920 # result with a title attribute if it does get chopped. Additionally, the
921 # string is HTML-escaped.
922 sub chop_and_escape_str {
923 my ($str) = @_;
924
925 my $chopped = chop_str(@_);
926 if ($chopped eq $str) {
927 return esc_html($chopped);
928 } else {
929 $str =~ s/([[:cntrl:]])/?/g;
930 return $cgi->span({-title=>$str}, esc_html($chopped));
931 }
932 }
933
934 ## ----------------------------------------------------------------------
935 ## functions returning short strings
936
937 # CSS class for given age value (in seconds)
938 sub age_class {
939 my $age = shift;
940
941 if (!defined $age) {
942 return "noage";
943 } elsif ($age < 60*60*2) {
944 return "age0";
945 } elsif ($age < 60*60*24*2) {
946 return "age1";
947 } else {
948 return "age2";
949 }
950 }
951
952 # convert age in seconds to "nn units ago" string
953 sub age_string {
954 my $age = shift;
955 my $age_str;
956
957 if ($age > 60*60*24*365*2) {
958 $age_str = (int $age/60/60/24/365);
959 $age_str .= " years ago";
960 } elsif ($age > 60*60*24*(365/12)*2) {
961 $age_str = int $age/60/60/24/(365/12);
962 $age_str .= " months ago";
963 } elsif ($age > 60*60*24*7*2) {
964 $age_str = int $age/60/60/24/7;
965 $age_str .= " weeks ago";
966 } elsif ($age > 60*60*24*2) {
967 $age_str = int $age/60/60/24;
968 $age_str .= " days ago";
969 } elsif ($age > 60*60*2) {
970 $age_str = int $age/60/60;
971 $age_str .= " hours ago";
972 } elsif ($age > 60*2) {
973 $age_str = int $age/60;
974 $age_str .= " min ago";
975 } elsif ($age > 2) {
976 $age_str = int $age;
977 $age_str .= " sec ago";
978 } else {
979 $age_str .= " right now";
980 }
981 return $age_str;
982 }
983
984 use constant {
985 S_IFINVALID => 0030000,
986 S_IFGITLINK => 0160000,
987 };
988
989 # submodule/subproject, a commit object reference
990 sub S_ISGITLINK($) {
991 my $mode = shift;
992
993 return (($mode & S_IFMT) == S_IFGITLINK)
994 }
995
996 # convert file mode in octal to symbolic file mode string
997 sub mode_str {
998 my $mode = oct shift;
999
1000 if (S_ISGITLINK($mode)) {
1001 return 'm---------';
1002 } elsif (S_ISDIR($mode & S_IFMT)) {
1003 return 'drwxr-xr-x';
1004 } elsif (S_ISLNK($mode)) {
1005 return 'lrwxrwxrwx';
1006 } elsif (S_ISREG($mode)) {
1007 # git cares only about the executable bit
1008 if ($mode & S_IXUSR) {
1009 return '-rwxr-xr-x';
1010 } else {
1011 return '-rw-r--r--';
1012 };
1013 } else {
1014 return '----------';
1015 }
1016 }
1017
1018 # convert file mode in octal to file type string
1019 sub file_type {
1020 my $mode = shift;
1021
1022 if ($mode !~ m/^[0-7]+$/) {
1023 return $mode;
1024 } else {
1025 $mode = oct $mode;
1026 }
1027
1028 if (S_ISGITLINK($mode)) {
1029 return "submodule";
1030 } elsif (S_ISDIR($mode & S_IFMT)) {
1031 return "directory";
1032 } elsif (S_ISLNK($mode)) {
1033 return "symlink";
1034 } elsif (S_ISREG($mode)) {
1035 return "file";
1036 } else {
1037 return "unknown";
1038 }
1039 }
1040
1041 # convert file mode in octal to file type description string
1042 sub file_type_long {
1043 my $mode = shift;
1044
1045 if ($mode !~ m/^[0-7]+$/) {
1046 return $mode;
1047 } else {
1048 $mode = oct $mode;
1049 }
1050
1051 if (S_ISGITLINK($mode)) {
1052 return "submodule";
1053 } elsif (S_ISDIR($mode & S_IFMT)) {
1054 return "directory";
1055 } elsif (S_ISLNK($mode)) {
1056 return "symlink";
1057 } elsif (S_ISREG($mode)) {
1058 if ($mode & S_IXUSR) {
1059 return "executable";
1060 } else {
1061 return "file";
1062 };
1063 } else {
1064 return "unknown";
1065 }
1066 }
1067
1068
1069 ## ----------------------------------------------------------------------
1070 ## functions returning short HTML fragments, or transforming HTML fragments
1071 ## which don't belong to other sections
1072
1073 # format line of commit message.
1074 sub format_log_line_html {
1075 my $line = shift;
1076
1077 $line = esc_html($line, -nbsp=>1);
1078 if ($line =~ m/([0-9a-fA-F]{8,40})/) {
1079 my $hash_text = $1;
1080 my $link =
1081 $cgi->a({-href => href(action=>"object", hash=>$hash_text),
1082 -class => "text"}, $hash_text);
1083 $line =~ s/$hash_text/$link/;
1084 }
1085 return $line;
1086 }
1087
1088 # format marker of refs pointing to given object
1089 sub format_ref_marker {
1090 my ($refs, $id) = @_;
1091 my $markers = '';
1092
1093 if (defined $refs->{$id}) {
1094 foreach my $ref (@{$refs->{$id}}) {
1095 my ($type, $name) = qw();
1096 # e.g. tags/v2.6.11 or heads/next
1097 if ($ref =~ m!^(.*?)s?/(.*)$!) {
1098 $type = $1;
1099 $name = $2;
1100 } else {
1101 $type = "ref";
1102 $name = $ref;
1103 }
1104
1105 $markers .= " <span class=\"$type\" title=\"$ref\">" .
1106 esc_html($name) . "</span>";
1107 }
1108 }
1109
1110 if ($markers) {
1111 return ' <span class="refs">'. $markers . '</span>';
1112 } else {
1113 return "";
1114 }
1115 }
1116
1117 # format, perhaps shortened and with markers, title line
1118 sub format_subject_html {
1119 my ($long, $short, $href, $extra) = @_;
1120 $extra = '' unless defined($extra);
1121
1122 if (length($short) < length($long)) {
1123 return $cgi->a({-href => $href, -class => "list subject",
1124 -title => to_utf8($long)},
1125 esc_html($short) . $extra);
1126 } else {
1127 return $cgi->a({-href => $href, -class => "list subject"},
1128 esc_html($long) . $extra);
1129 }
1130 }
1131
1132 # format git diff header line, i.e. "diff --(git|combined|cc) ..."
1133 sub format_git_diff_header_line {
1134 my $line = shift;
1135 my $diffinfo = shift;
1136 my ($from, $to) = @_;
1137
1138 if ($diffinfo->{'nparents'}) {
1139 # combined diff
1140 $line =~ s!^(diff (.*?) )"?.*$!$1!;
1141 if ($to->{'href'}) {
1142 $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1143 esc_path($to->{'file'}));
1144 } else { # file was deleted (no href)
1145 $line .= esc_path($to->{'file'});
1146 }
1147 } else {
1148 # "ordinary" diff
1149 $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
1150 if ($from->{'href'}) {
1151 $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
1152 'a/' . esc_path($from->{'file'}));
1153 } else { # file was added (no href)
1154 $line .= 'a/' . esc_path($from->{'file'});
1155 }
1156 $line .= ' ';
1157 if ($to->{'href'}) {
1158 $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1159 'b/' . esc_path($to->{'file'}));
1160 } else { # file was deleted
1161 $line .= 'b/' . esc_path($to->{'file'});
1162 }
1163 }
1164
1165 return "<div class=\"diff header\">$line</div>\n";
1166 }
1167
1168 # format extended diff header line, before patch itself
1169 sub format_extended_diff_header_line {
1170 my $line = shift;
1171 my $diffinfo = shift;
1172 my ($from, $to) = @_;
1173
1174 # match <path>
1175 if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
1176 $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1177 esc_path($from->{'file'}));
1178 }
1179 if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
1180 $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1181 esc_path($to->{'file'}));
1182 }
1183 # match single <mode>
1184 if ($line =~ m/\s(\d{6})$/) {
1185 $line .= '<span class="info"> (' .
1186 file_type_long($1) .
1187 ')</span>';
1188 }
1189 # match <hash>
1190 if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
1191 # can match only for combined diff
1192 $line = 'index ';
1193 for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1194 if ($from->{'href'}[$i]) {
1195 $line .= $cgi->a({-href=>$from->{'href'}[$i],
1196 -class=>"hash"},
1197 substr($diffinfo->{'from_id'}[$i],0,7));
1198 } else {
1199 $line .= '0' x 7;
1200 }
1201 # separator
1202 $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
1203 }
1204 $line .= '..';
1205 if ($to->{'href'}) {
1206 $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1207 substr($diffinfo->{'to_id'},0,7));
1208 } else {
1209 $line .= '0' x 7;
1210 }
1211
1212 } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
1213 # can match only for ordinary diff
1214 my ($from_link, $to_link);
1215 if ($from->{'href'}) {
1216 $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
1217 substr($diffinfo->{'from_id'},0,7));
1218 } else {
1219 $from_link = '0' x 7;
1220 }
1221 if ($to->{'href'}) {
1222 $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1223 substr($diffinfo->{'to_id'},0,7));
1224 } else {
1225 $to_link = '0' x 7;
1226 }
1227 my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
1228 $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
1229 }
1230
1231 return $line . "<br/>\n";
1232 }
1233
1234 # format from-file/to-file diff header
1235 sub format_diff_from_to_header {
1236 my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
1237 my $line;
1238 my $result = '';
1239
1240 $line = $from_line;
1241 #assert($line =~ m/^---/) if DEBUG;
1242 # no extra formatting for "^--- /dev/null"
1243 if (! $diffinfo->{'nparents'}) {
1244 # ordinary (single parent) diff
1245 if ($line =~ m!^--- "?a/!) {
1246 if ($from->{'href'}) {
1247 $line = '--- a/' .
1248 $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1249 esc_path($from->{'file'}));
1250 } else {
1251 $line = '--- a/' .
1252 esc_path($from->{'file'});
1253 }
1254 }
1255 $result .= qq!<div class="diff from_file">$line</div>\n!;
1256
1257 } else {
1258 # combined diff (merge commit)
1259 for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1260 if ($from->{'href'}[$i]) {
1261 $line = '--- ' .
1262 $cgi->a({-href=>href(action=>"blobdiff",
1263 hash_parent=>$diffinfo->{'from_id'}[$i],
1264 hash_parent_base=>$parents[$i],
1265 file_parent=>$from->{'file'}[$i],
1266 hash=>$diffinfo->{'to_id'},
1267 hash_base=>$hash,
1268 file_name=>$to->{'file'}),
1269 -class=>"path",
1270 -title=>"diff" . ($i+1)},
1271 $i+1) .
1272 '/' .
1273 $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
1274 esc_path($from->{'file'}[$i]));
1275 } else {
1276 $line = '--- /dev/null';
1277 }
1278 $result .= qq!<div class="diff from_file">$line</div>\n!;
1279 }
1280 }
1281
1282 $line = $to_line;
1283 #assert($line =~ m/^\+\+\+/) if DEBUG;
1284 # no extra formatting for "^+++ /dev/null"
1285 if ($line =~ m!^\+\+\+ "?b/!) {
1286 if ($to->{'href'}) {
1287 $line = '+++ b/' .
1288 $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1289 esc_path($to->{'file'}));
1290 } else {
1291 $line = '+++ b/' .
1292 esc_path($to->{'file'});
1293 }
1294 }
1295 $result .= qq!<div class="diff to_file">$line</div>\n!;
1296
1297 return $result;
1298 }
1299
1300 # create note for patch simplified by combined diff
1301 sub format_diff_cc_simplified {
1302 my ($diffinfo, @parents) = @_;
1303 my $result = '';
1304
1305 $result .= "<div class=\"diff header\">" .
1306 "diff --cc ";
1307 if (!is_deleted($diffinfo)) {
1308 $result .= $cgi->a({-href => href(action=>"blob",
1309 hash_base=>$hash,
1310 hash=>$diffinfo->{'to_id'},
1311 file_name=>$diffinfo->{'to_file'}),
1312 -class => "path"},
1313 esc_path($diffinfo->{'to_file'}));
1314 } else {
1315 $result .= esc_path($diffinfo->{'to_file'});
1316 }
1317 $result .= "</div>\n" . # class="diff header"
1318 "<div class=\"diff nodifferences\">" .
1319 "Simple merge" .
1320 "</div>\n"; # class="diff nodifferences"
1321
1322 return $result;
1323 }
1324
1325 # format patch (diff) line (not to be used for diff headers)
1326 sub format_diff_line {
1327 my $line = shift;
1328 my ($from, $to) = @_;
1329 my $diff_class = "";
1330
1331 chomp $line;
1332
1333 if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
1334 # combined diff
1335 my $prefix = substr($line, 0, scalar @{$from->{'href'}});
1336 if ($line =~ m/^\@{3}/) {
1337 $diff_class = " chunk_header";
1338 } elsif ($line =~ m/^\\/) {
1339 $diff_class = " incomplete";
1340 } elsif ($prefix =~ tr/+/+/) {
1341 $diff_class = " add";
1342 } elsif ($prefix =~ tr/-/-/) {
1343 $diff_class = " rem";
1344 }
1345 } else {
1346 # assume ordinary diff
1347 my $char = substr($line, 0, 1);
1348 if ($char eq '+') {
1349 $diff_class = " add";
1350 } elsif ($char eq '-') {
1351 $diff_class = " rem";
1352 } elsif ($char eq '@') {
1353 $diff_class = " chunk_header";
1354 } elsif ($char eq "\\") {
1355 $diff_class = " incomplete";
1356 }
1357 }
1358 $line = untabify($line);
1359 if ($from && $to && $line =~ m/^\@{2} /) {
1360 my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
1361 $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
1362
1363 $from_lines = 0 unless defined $from_lines;
1364 $to_lines = 0 unless defined $to_lines;
1365
1366 if ($from->{'href'}) {
1367 $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
1368 -class=>"list"}, $from_text);
1369 }
1370 if ($to->{'href'}) {
1371 $to_text = $cgi->a({-href=>"$to->{'href'}#l$to_start",
1372 -class=>"list"}, $to_text);
1373 }
1374 $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
1375 "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1376 return "<div class=\"diff$diff_class\">$line</div>\n";
1377 } elsif ($from && $to && $line =~ m/^\@{3}/) {
1378 my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
1379 my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
1380
1381 @from_text = split(' ', $ranges);
1382 for (my $i = 0; $i < @from_text; ++$i) {
1383 ($from_start[$i], $from_nlines[$i]) =
1384 (split(',', substr($from_text[$i], 1)), 0);
1385 }
1386
1387 $to_text = pop @from_text;
1388 $to_start = pop @from_start;
1389 $to_nlines = pop @from_nlines;
1390
1391 $line = "<span class=\"chunk_info\">$prefix ";
1392 for (my $i = 0; $i < @from_text; ++$i) {
1393 if ($from->{'href'}[$i]) {
1394 $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
1395 -class=>"list"}, $from_text[$i]);
1396 } else {
1397 $line .= $from_text[$i];
1398 }
1399 $line .= " ";
1400 }
1401 if ($to->{'href'}) {
1402 $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
1403 -class=>"list"}, $to_text);
1404 } else {
1405 $line .= $to_text;
1406 }
1407 $line .= " $prefix</span>" .
1408 "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1409 return "<div class=\"diff$diff_class\">$line</div>\n";
1410 }
1411 return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
1412 }
1413
1414 # Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
1415 # linked. Pass the hash of the tree/commit to snapshot.
1416 sub format_snapshot_links {
1417 my ($hash) = @_;
1418 my @snapshot_fmts = gitweb_check_feature('snapshot');
1419 @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
1420 my $num_fmts = @snapshot_fmts;
1421 if ($num_fmts > 1) {
1422 # A parenthesized list of links bearing format names.
1423 # e.g. "snapshot (_tar.gz_ _zip_)"
1424 return "snapshot (" . join(' ', map
1425 $cgi->a({
1426 -href => href(
1427 action=>"snapshot",
1428 hash=>$hash,
1429 snapshot_format=>$_
1430 )
1431 }, $known_snapshot_formats{$_}{'display'})
1432 , @snapshot_fmts) . ")";
1433 } elsif ($num_fmts == 1) {
1434 # A single "snapshot" link whose tooltip bears the format name.
1435 # i.e. "_snapshot_"
1436 my ($fmt) = @snapshot_fmts;
1437 return
1438 $cgi->a({
1439 -href => href(
1440 action=>"snapshot",
1441 hash=>$hash,
1442 snapshot_format=>$fmt
1443 ),
1444 -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
1445 }, "snapshot");
1446 } else { # $num_fmts == 0
1447 return undef;
1448 }
1449 }
1450
1451 ## ----------------------------------------------------------------------
1452 ## git utility subroutines, invoking git commands
1453
1454 # returns path to the core git executable and the --git-dir parameter as list
1455 sub git_cmd {
1456 return $GIT, '--git-dir='.$git_dir;
1457 }
1458
1459 # returns path to the core git executable and the --git-dir parameter as string
1460 sub git_cmd_str {
1461 return join(' ', git_cmd());
1462 }
1463
1464 # get HEAD ref of given project as hash
1465 sub git_get_head_hash {
1466 my $project = shift;
1467 my $o_git_dir = $git_dir;
1468 my $retval = undef;
1469 $git_dir = "$projectroot/$project";
1470 if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1471 my $head = <$fd>;
1472 close $fd;
1473 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1474 $retval = $1;
1475 }
1476 }
1477 if (defined $o_git_dir) {
1478 $git_dir = $o_git_dir;
1479 }
1480 return $retval;
1481 }
1482
1483 # get type of given object
1484 sub git_get_type {
1485 my $hash = shift;
1486
1487 open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1488 my $type = <$fd>;
1489 close $fd or return;
1490 chomp $type;
1491 return $type;
1492 }
1493
1494 # repository configuration
1495 our $config_file = '';
1496 our %config;
1497
1498 # store multiple values for single key as anonymous array reference
1499 # single values stored directly in the hash, not as [ <value> ]
1500 sub hash_set_multi {
1501 my ($hash, $key, $value) = @_;
1502
1503 if (!exists $hash->{$key}) {
1504 $hash->{$key} = $value;
1505 } elsif (!ref $hash->{$key}) {
1506 $hash->{$key} = [ $hash->{$key}, $value ];
1507 } else {
1508 push @{$hash->{$key}}, $value;
1509 }
1510 }
1511
1512 # return hash of git project configuration
1513 # optionally limited to some section, e.g. 'gitweb'
1514 sub git_parse_project_config {
1515 my $section_regexp = shift;
1516 my %config;
1517
1518 local $/ = "\0";
1519
1520 open my $fh, "-|", git_cmd(), "config", '-z', '-l',
1521 or return;
1522
1523 while (my $keyval = <$fh>) {
1524 chomp $keyval;
1525 my ($key, $value) = split(/\n/, $keyval, 2);
1526
1527 hash_set_multi(\%config, $key, $value)
1528 if (!defined $section_regexp || $key =~ /^(?:$section_regexp)\./o);
1529 }
1530 close $fh;
1531
1532 return %config;
1533 }
1534
1535 # convert config value to boolean, 'true' or 'false'
1536 # no value, number > 0, 'true' and 'yes' values are true
1537 # rest of values are treated as false (never as error)
1538 sub config_to_bool {
1539 my $val = shift;
1540
1541 # strip leading and trailing whitespace
1542 $val =~ s/^\s+//;
1543 $val =~ s/\s+$//;
1544
1545 return (!defined $val || # section.key
1546 ($val =~ /^\d+$/ && $val) || # section.key = 1
1547 ($val =~ /^(?:true|yes)$/i)); # section.key = true
1548 }
1549
1550 # convert config value to simple decimal number
1551 # an optional value suffix of 'k', 'm', or 'g' will cause the value
1552 # to be multiplied by 1024, 1048576, or 1073741824
1553 sub config_to_int {
1554 my $val = shift;
1555
1556 # strip leading and trailing whitespace
1557 $val =~ s/^\s+//;
1558 $val =~ s/\s+$//;
1559
1560 if (my ($num, $unit) = ($val =~ /^([0-9]*)([kmg])$/i)) {
1561 $unit = lc($unit);
1562 # unknown unit is treated as 1
1563 return $num * ($unit eq 'g' ? 1073741824 :
1564 $unit eq 'm' ? 1048576 :
1565 $unit eq 'k' ? 1024 : 1);
1566 }
1567 return $val;
1568 }
1569
1570 # convert config value to array reference, if needed
1571 sub config_to_multi {
1572 my $val = shift;
1573
1574 return ref($val) ? $val : (defined($val) ? [ $val ] : []);
1575 }
1576
1577 sub git_get_project_config {
1578 my ($key, $type) = @_;
1579
1580 # key sanity check
1581 return unless ($key);
1582 $key =~ s/^gitweb\.//;
1583 return if ($key =~ m/\W/);
1584
1585 # type sanity check
1586 if (defined $type) {
1587 $type =~ s/^--//;
1588 $type = undef
1589 unless ($type eq 'bool' || $type eq 'int');
1590 }
1591
1592 # get config
1593 if (!defined $config_file ||
1594 $config_file ne "$git_dir/config") {
1595 %config = git_parse_project_config('gitweb');
1596 $config_file = "$git_dir/config";
1597 }
1598
1599 # ensure given type
1600 if (!defined $type) {
1601 return $config{"gitweb.$key"};
1602 } elsif ($type eq 'bool') {
1603 # backward compatibility: 'git config --bool' returns true/false
1604 return config_to_bool($config{"gitweb.$key"}) ? 'true' : 'false';
1605 } elsif ($type eq 'int') {
1606 return config_to_int($config{"gitweb.$key"});
1607 }
1608 return $config{"gitweb.$key"};
1609 }
1610
1611 # get hash of given path at given ref
1612 sub git_get_hash_by_path {
1613 my $base = shift;
1614 my $path = shift || return undef;
1615 my $type = shift;
1616
1617 $path =~ s,/+$,,;
1618
1619 open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1620 or die_error(undef, "Open git-ls-tree failed");
1621 my $line = <$fd>;
1622 close $fd or return undef;
1623
1624 if (!defined $line) {
1625 # there is no tree or hash given by $path at $base
1626 return undef;
1627 }
1628
1629 #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c'
1630 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1631 if (defined $type && $type ne $2) {
1632 # type doesn't match
1633 return undef;
1634 }
1635 return $3;
1636 }
1637
1638 # get path of entry with given hash at given tree-ish (ref)
1639 # used to get 'from' filename for combined diff (merge commit) for renames
1640 sub git_get_path_by_hash {
1641 my $base = shift || return;
1642 my $hash = shift || return;
1643
1644 local $/ = "\0";
1645
1646 open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1647 or return undef;
1648 while (my $line = <$fd>) {
1649 chomp $line;
1650
1651 #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423 gitweb'
1652 #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f gitweb/README'
1653 if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1654 close $fd;
1655 return $1;
1656 }
1657 }
1658 close $fd;
1659 return undef;
1660 }
1661
1662 ## ......................................................................
1663 ## git utility functions, directly accessing git repository
1664
1665 sub git_get_project_description {
1666 my $path = shift;
1667
1668 $git_dir = "$projectroot/$path";
1669 open my $fd, "$git_dir/description"
1670 or return git_get_project_config('description');
1671 my $descr = <$fd>;
1672 close $fd;
1673 if (defined $descr) {
1674 chomp $descr;
1675 }
1676 return $descr;
1677 }
1678
1679 sub git_get_project_url_list {
1680 my $path = shift;
1681
1682 $git_dir = "$projectroot/$path";
1683 open my $fd, "$git_dir/cloneurl"
1684 or return wantarray ?
1685 @{ config_to_multi(git_get_project_config('url')) } :
1686 config_to_multi(git_get_project_config('url'));
1687 my @git_project_url_list = map { chomp; $_ } <$fd>;
1688 close $fd;
1689
1690 return wantarray ? @git_project_url_list : \@git_project_url_list;
1691 }
1692
1693 sub git_get_projects_list {
1694 my ($filter) = @_;
1695 my @list;
1696
1697 $filter ||= '';
1698 $filter =~ s/\.git$//;
1699
1700 my ($check_forks) = gitweb_check_feature('forks');
1701
1702 if (-d $projects_list) {
1703 # search in directory
1704 my $dir = $projects_list . ($filter ? "/$filter" : '');
1705 # remove the trailing "/"
1706 $dir =~ s!/+$!!;
1707 my $pfxlen = length("$dir");
1708 my $pfxdepth = ($dir =~ tr!/!!);
1709
1710 File::Find::find({
1711 follow_fast => 1, # follow symbolic links
1712 follow_skip => 2, # ignore duplicates
1713 dangling_symlinks => 0, # ignore dangling symlinks, silently
1714 wanted => sub {
1715 # skip project-list toplevel, if we get it.
1716 return if (m!^[/.]$!);
1717 # only directories can be git repositories
1718 return unless (-d $_);
1719 # don't traverse too deep (Find is super slow on os x)
1720 if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
1721 $File::Find::prune = 1;
1722 return;
1723 }
1724
1725 my $subdir = substr($File::Find::name, $pfxlen + 1);
1726 # we check related file in $projectroot
1727 if ($check_forks and $subdir =~ m#/.#) {
1728 $File::Find::prune = 1;
1729 } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1730 push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1731 $File::Find::prune = 1;
1732 }
1733 },
1734 }, "$dir");
1735
1736 } elsif (-f $projects_list) {
1737 # read from file(url-encoded):
1738 # 'git%2Fgit.git Linus+Torvalds'
1739 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1740 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1741 my %paths;
1742 open my ($fd), $projects_list or return;
1743 PROJECT:
1744 while (my $line = <$fd>) {
1745 chomp $line;
1746 my ($path, $owner) = split ' ', $line;
1747 $path = unescape($path);
1748 $owner = unescape($owner);
1749 if (!defined $path) {
1750 next;
1751 }
1752 if ($filter ne '') {
1753 # looking for forks;
1754 my $pfx = substr($path, 0, length($filter));
1755 if ($pfx ne $filter) {
1756 next PROJECT;
1757 }
1758 my $sfx = substr($path, length($filter));
1759 if ($sfx !~ /^\/.*\.git$/) {
1760 next PROJECT;
1761 }
1762 } elsif ($check_forks) {
1763 PATH:
1764 foreach my $filter (keys %paths) {
1765 # looking for forks;
1766 my $pfx = substr($path, 0, length($filter));
1767 if ($pfx ne $filter) {
1768 next PATH;
1769 }
1770 my $sfx = substr($path, length($filter));
1771 if ($sfx !~ /^\/.*\.git$/) {
1772 next PATH;
1773 }
1774 # is a fork, don't include it in
1775 # the list
1776 next PROJECT;
1777 }
1778 }
1779 if (check_export_ok("$projectroot/$path")) {
1780 my $pr = {
1781 path => $path,
1782 owner => to_utf8($owner),
1783 };
1784 push @list, $pr;
1785 (my $forks_path = $path) =~ s/\.git$//;
1786 $paths{$forks_path}++;
1787 }
1788 }
1789 close $fd;
1790 }
1791 return @list;
1792 }
1793
1794 our $gitweb_project_owner = undef;
1795 sub git_get_project_list_from_file {
1796
1797 return if (defined $gitweb_project_owner);
1798
1799 $gitweb_project_owner = {};
1800 # read from file (url-encoded):
1801 # 'git%2Fgit.git Linus+Torvalds'
1802 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1803 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1804 if (-f $projects_list) {
1805 open (my $fd , $projects_list);
1806 while (my $line = <$fd>) {
1807 chomp $line;
1808 my ($pr, $ow) = split ' ', $line;
1809 $pr = unescape($pr);
1810 $ow = unescape($ow);
1811 $gitweb_project_owner->{$pr} = to_utf8($ow);
1812 }
1813 close $fd;
1814 }
1815 }
1816
1817 sub git_get_project_owner {
1818 my $project = shift;
1819 my $owner;
1820
1821 return undef unless $project;
1822 $git_dir = "$projectroot/$project";
1823
1824 if (!defined $gitweb_project_owner) {
1825 git_get_project_list_from_file();
1826 }
1827
1828 if (exists $gitweb_project_owner->{$project}) {
1829 $owner = $gitweb_project_owner->{$project};
1830 }
1831 if (!defined $owner){
1832 $owner = git_get_project_config('owner');
1833 }
1834 if (!defined $owner) {
1835 $owner = get_file_owner("$git_dir");
1836 }
1837
1838 return $owner;
1839 }
1840
1841 sub git_get_last_activity {
1842 my ($path) = @_;
1843 my $fd;
1844
1845 $git_dir = "$projectroot/$path";
1846 open($fd, "-|", git_cmd(), 'for-each-ref',
1847 '--format=%(committer)',
1848 '--sort=-committerdate',
1849 '--count=1',
1850 'refs/heads') or return;
1851 my $most_recent = <$fd>;
1852 close $fd or return;
1853 if (defined $most_recent &&
1854 $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1855 my $timestamp = $1;
1856 my $age = time - $timestamp;
1857 return ($age, age_string($age));
1858 }
1859 return (undef, undef);
1860 }
1861
1862 sub git_get_references {
1863 my $type = shift || "";
1864 my %refs;
1865 # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1866 # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1867 open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1868 ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1869 or return;
1870
1871 while (my $line = <$fd>) {
1872 chomp $line;
1873 if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1874 if (defined $refs{$1}) {
1875 push @{$refs{$1}}, $2;
1876 } else {
1877 $refs{$1} = [ $2 ];
1878 }
1879 }
1880 }
1881 close $fd or return;
1882 return \%refs;
1883 }
1884
1885 sub git_get_rev_name_tags {
1886 my $hash = shift || return undef;
1887
1888 open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1889 or return;
1890 my $name_rev = <$fd>;
1891 close $fd;
1892
1893 if ($name_rev =~ m|^$hash tags/(.*)$|) {
1894 return $1;
1895 } else {
1896 # catches also '$hash undefined' output
1897 return undef;
1898 }
1899 }
1900
1901 ## ----------------------------------------------------------------------
1902 ## parse to hash functions
1903
1904 sub parse_date {
1905 my $epoch = shift;
1906 my $tz = shift || "-0000";
1907
1908 my %date;
1909 my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1910 my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1911 my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1912 $date{'hour'} = $hour;
1913 $date{'minute'} = $min;
1914 $date{'mday'} = $mday;
1915 $date{'day'} = $days[$wday];
1916 $date{'month'} = $months[$mon];
1917 $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1918 $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1919 $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1920 $mday, $months[$mon], $hour ,$min;
1921 $date{'iso-8601'} = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1922 1900+$year, 1+$mon, $mday, $hour ,$min, $sec;
1923
1924 $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1925 my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1926 ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1927 $date{'hour_local'} = $hour;
1928 $date{'minute_local'} = $min;
1929 $date{'tz_local'} = $tz;
1930 $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1931 1900+$year, $mon+1, $mday,
1932 $hour, $min, $sec, $tz);
1933 return %date;
1934 }
1935
1936 sub parse_tag {
1937 my $tag_id = shift;
1938 my %tag;
1939 my @comment;
1940
1941 open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1942 $tag{'id'} = $tag_id;
1943 while (my $line = <$fd>) {
1944 chomp $line;
1945 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1946 $tag{'object'} = $1;
1947 } elsif ($line =~ m/^type (.+)$/) {
1948 $tag{'type'} = $1;
1949 } elsif ($line =~ m/^tag (.+)$/) {
1950 $tag{'name'} = $1;
1951 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1952 $tag{'author'} = $1;
1953 $tag{'epoch'} = $2;
1954 $tag{'tz'} = $3;
1955 } elsif ($line =~ m/--BEGIN/) {
1956 push @comment, $line;
1957 last;
1958 } elsif ($line eq "") {
1959 last;
1960 }
1961 }
1962 push @comment, <$fd>;
1963 $tag{'comment'} = \@comment;
1964 close $fd or return;
1965 if (!defined $tag{'name'}) {
1966 return
1967 };
1968 return %tag
1969 }
1970
1971 sub parse_commit_text {
1972 my ($commit_text, $withparents) = @_;
1973 my @commit_lines = split '\n', $commit_text;
1974 my %co;
1975
1976 pop @commit_lines; # Remove '\0'
1977
1978 if (! @commit_lines) {
1979 return;
1980 }
1981
1982 my $header = shift @commit_lines;
1983 if ($header !~ m/^[0-9a-fA-F]{40}/) {
1984 return;
1985 }
1986 ($co{'id'}, my @parents) = split ' ', $header;
1987 while (my $line = shift @commit_lines) {
1988 last if $line eq "\n";
1989 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1990 $co{'tree'} = $1;
1991 } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1992 push @parents, $1;
1993 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1994 $co{'author'} = $1;
1995 $co{'author_epoch'} = $2;
1996 $co{'author_tz'} = $3;
1997 if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1998 $co{'author_name'} = $1;
1999 $co{'author_email'} = $2;
2000 } else {
2001 $co{'author_name'} = $co{'author'};
2002 }
2003 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
2004 $co{'committer'} = $1;
2005 $co{'committer_epoch'} = $2;
2006 $co{'committer_tz'} = $3;
2007 $co{'committer_name'} = $co{'committer'};
2008 if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
2009 $co{'committer_name'} = $1;
2010 $co{'committer_email'} = $2;
2011 } else {
2012 $co{'committer_name'} = $co{'committer'};
2013 }
2014 }
2015 }
2016 if (!defined $co{'tree'}) {
2017 return;
2018 };
2019 $co{'parents'} = \@parents;
2020 $co{'parent'} = $parents[0];
2021
2022 foreach my $title (@commit_lines) {
2023 $title =~ s/^ //;
2024 if ($title ne "") {
2025 $co{'title'} = chop_str($title, 80, 5);
2026 # remove leading stuff of merges to make the interesting part visible
2027 if (length($title) > 50) {
2028 $title =~ s/^Automatic //;
2029 $title =~ s/^merge (of|with) /Merge ... /i;
2030 if (length($title) > 50) {
2031 $title =~ s/(http|rsync):\/\///;
2032 }
2033 if (length($title) > 50) {
2034 $title =~ s/(master|www|rsync)\.//;
2035 }
2036 if (length($title) > 50) {
2037 $title =~ s/kernel.org:?//;
2038 }
2039 if (length($title) > 50) {
2040 $title =~ s/\/pub\/scm//;
2041 }
2042 }
2043 $co{'title_short'} = chop_str($title, 50, 5);
2044 last;
2045 }
2046 }
2047 if ($co{'title'} eq "") {
2048 $co{'title'} = $co{'title_short'} = '(no commit message)';
2049 }
2050 # remove added spaces
2051 foreach my $line (@commit_lines) {
2052 $line =~ s/^ //;
2053 }
2054 $co{'comment'} = \@commit_lines;
2055
2056 my $age = time - $co{'committer_epoch'};
2057 $co{'age'} = $age;
2058 $co{'age_string'} = age_string($age);
2059 my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
2060 if ($age > 60*60*24*7*2) {
2061 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
2062 $co{'age_string_age'} = $co{'age_string'};
2063 } else {
2064 $co{'age_string_date'} = $co{'age_string'};
2065 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
2066 }
2067 return %co;
2068 }
2069
2070 sub parse_commit {
2071 my ($commit_id) = @_;
2072 my %co;
2073
2074 local $/ = "\0";
2075
2076 open my $fd, "-|", git_cmd(), "rev-list",
2077 "--parents",
2078 "--header",
2079 "--max-count=1",
2080 $commit_id,
2081 "--",
2082 or die_error(undef, "Open git-rev-list failed");
2083 %co = parse_commit_text(<$fd>, 1);
2084 close $fd;
2085
2086 return %co;
2087 }
2088
2089 sub parse_commits {
2090 my ($commit_id, $maxcount, $skip, $filename, @args) = @_;
2091 my @cos;
2092
2093 $maxcount ||= 1;
2094 $skip ||= 0;
2095
2096 local $/ = "\0";
2097
2098 open my $fd, "-|", git_cmd(), "rev-list",
2099 "--header",
2100 @args,
2101 ("--max-count=" . $maxcount),
2102 ("--skip=" . $skip),
2103 @extra_options,
2104 $commit_id,
2105 "--",
2106 ($filename ? ($filename) : ())
2107 or die_error(undef, "Open git-rev-list failed");
2108 while (my $line = <$fd>) {
2109 my %co = parse_commit_text($line);
2110 push @cos, \%co;
2111 }
2112 close $fd;
2113
2114 return wantarray ? @cos : \@cos;
2115 }
2116
2117 # parse ref from ref_file, given by ref_id, with given type
2118 sub parse_ref {
2119 my $ref_file = shift;
2120 my $ref_id = shift;
2121 my $type = shift || git_get_type($ref_id);
2122 my %ref_item;
2123
2124 $ref_item{'type'} = $type;
2125 $ref_item{'id'} = $ref_id;
2126 $ref_item{'epoch'} = 0;
2127 $ref_item{'age'} = "unknown";
2128 if ($type eq "tag") {
2129 my %tag = parse_tag($ref_id);
2130 $ref_item{'comment'} = $tag{'comment'};
2131 if ($tag{'type'} eq "commit") {
2132 my %co = parse_commit($tag{'object'});
2133 $ref_item{'epoch'} = $co{'committer_epoch'};
2134 $ref_item{'age'} = $co{'age_string'};
2135 } elsif (defined($tag{'epoch'})) {
2136 my $age = time - $tag{'epoch'};
2137 $ref_item{'epoch'} = $tag{'epoch'};
2138 $ref_item{'age'} = age_string($age);
2139 }
2140 $ref_item{'reftype'} = $tag{'type'};
2141 $ref_item{'name'} = $tag{'name'};
2142 $ref_item{'refid'} = $tag{'object'};
2143 } elsif ($type eq "commit"){
2144 my %co = parse_commit($ref_id);
2145 $ref_item{'reftype'} = "commit";
2146 $ref_item{'name'} = $ref_file;
2147 $ref_item{'title'} = $co{'title'};
2148 $ref_item{'refid'} = $ref_id;
2149 $ref_item{'epoch'} = $co{'committer_epoch'};
2150 $ref_item{'age'} = $co{'age_string'};
2151 } else {
2152 $ref_item{'reftype'} = $type;
2153 $ref_item{'name'} = $ref_file;
2154 $ref_item{'refid'} = $ref_id;
2155 }
2156
2157 return %ref_item;
2158 }
2159
2160 # parse line of git-diff-tree "raw" output
2161 sub parse_difftree_raw_line {
2162 my $line = shift;
2163 my %res;
2164
2165 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M ls-files.c'
2166 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M rev-tree.c'
2167 if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
2168 $res{'from_mode'} = $1;
2169 $res{'to_mode'} = $2;
2170 $res{'from_id'} = $3;
2171 $res{'to_id'} = $4;
2172 $res{'status'} = $5;
2173 $res{'similarity'} = $6;
2174 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
2175 ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
2176 } else {
2177 $res{'from_file'} = $res{'to_file'} = $res{'file'} = unquote($7);
2178 }
2179 }
2180 # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
2181 # combined diff (for merge commit)
2182 elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
2183 $res{'nparents'} = length($1);
2184 $res{'from_mode'} = [ split(' ', $2) ];
2185 $res{'to_mode'} = pop @{$res{'from_mode'}};
2186 $res{'from_id'} = [ split(' ', $3) ];
2187 $res{'to_id'} = pop @{$res{'from_id'}};
2188 $res{'status'} = [ split('', $4) ];
2189 $res{'to_file'} = unquote($5);
2190 }
2191 # 'c512b523472485aef4fff9e57b229d9d243c967f'
2192 elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
2193 $res{'commit'} = $1;
2194 }
2195
2196 return wantarray ? %res : \%res;
2197 }
2198
2199 # wrapper: return parsed line of git-diff-tree "raw" output
2200 # (the argument might be raw line, or parsed info)
2201 sub parsed_difftree_line {
2202 my $line_or_ref = shift;
2203
2204 if (ref($line_or_ref) eq "HASH") {
2205 # pre-parsed (or generated by hand)
2206 return $line_or_ref;
2207 } else {
2208 return parse_difftree_raw_line($line_or_ref);
2209 }
2210 }
2211
2212 # parse line of git-ls-tree output
2213 sub parse_ls_tree_line ($;%) {
2214 my $line = shift;
2215 my %opts = @_;
2216 my %res;
2217
2218 #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c'
2219 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
2220
2221 $res{'mode'} = $1;
2222 $res{'type'} = $2;
2223 $res{'hash'} = $3;
2224 if ($opts{'-z'}) {
2225 $res{'name'} = $4;
2226 } else {
2227 $res{'name'} = unquote($4);
2228 }
2229
2230 return wantarray ? %res : \%res;
2231 }
2232
2233 # generates _two_ hashes, references to which are passed as 2 and 3 argument
2234 sub parse_from_to_diffinfo {
2235 my ($diffinfo, $from, $to, @parents) = @_;
2236
2237 if ($diffinfo->{'nparents'}) {
2238 # combined diff
2239 $from->{'file'} = [];
2240 $from->{'href'} = [];
2241 fill_from_file_info($diffinfo, @parents)
2242 unless exists $diffinfo->{'from_file'};
2243 for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2244 $from->{'file'}[$i] =
2245 defined $diffinfo->{'from_file'}[$i] ?
2246 $diffinfo->{'from_file'}[$i] :
2247 $diffinfo->{'to_file'};
2248 if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2249 $from->{'href'}[$i] = href(action=>"blob",
2250 hash_base=>$parents[$i],
2251 hash=>$diffinfo->{'from_id'}[$i],
2252 file_name=>$from->{'file'}[$i]);
2253 } else {
2254 $from->{'href'}[$i] = undef;
2255 }
2256 }
2257 } else {
2258 # ordinary (not combined) diff
2259 $from->{'file'} = $diffinfo->{'from_file'};
2260 if ($diffinfo->{'status'} ne "A") { # not new (added) file
2261 $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2262 hash=>$diffinfo->{'from_id'},
2263 file_name=>$from->{'file'});
2264 } else {
2265 delete $from->{'href'};
2266 }
2267 }
2268
2269 $to->{'file'} = $diffinfo->{'to_file'};
2270 if (!is_deleted($diffinfo)) { # file exists in result
2271 $to->{'href'} = href(action=>"blob", hash_base=>$hash,
2272 hash=>$diffinfo->{'to_id'},
2273 file_name=>$to->{'file'});
2274 } else {
2275 delete $to->{'href'};
2276 }
2277 }
2278
2279 ## ......................................................................
2280 ## parse to array of hashes functions
2281
2282 sub git_get_heads_list {
2283 my $limit = shift;
2284 my @headslist;
2285
2286 open my $fd, '-|', git_cmd(), 'for-each-ref',
2287 ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
2288 '--format=%(objectname) %(refname) %(subject)%00%(committer)',
2289 'refs/heads'
2290 or return;
2291 while (my $line = <$fd>) {
2292 my %ref_item;
2293
2294 chomp $line;
2295 my ($refinfo, $committerinfo) = split(/\0/, $line);
2296 my ($hash, $name, $title) = split(' ', $refinfo, 3);
2297 my ($committer, $epoch, $tz) =
2298 ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
2299 $ref_item{'fullname'} = $name;
2300 $name =~ s!^refs/heads/!!;
2301
2302 $ref_item{'name'} = $name;
2303 $ref_item{'id'} = $hash;
2304 $ref_item{'title'} = $title || '(no commit message)';
2305 $ref_item{'epoch'} = $epoch;
2306 if ($epoch) {
2307 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2308 } else {
2309 $ref_item{'age'} = "unknown";
2310 }
2311
2312 push @headslist, \%ref_item;
2313 }
2314 close $fd;
2315
2316 return wantarray ? @headslist : \@headslist;
2317 }
2318
2319 sub git_get_tags_list {
2320 my $limit = shift;
2321 my @tagslist;
2322
2323 open my $fd, '-|', git_cmd(), 'for-each-ref',
2324 ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
2325 '--format=%(objectname) %(objecttype) %(refname) '.
2326 '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
2327 'refs/tags'
2328 or return;
2329 while (my $line = <$fd>) {
2330 my %ref_item;
2331
2332 chomp $line;
2333 my ($refinfo, $creatorinfo) = split(/\0/, $line);
2334 my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
2335 my ($creator, $epoch, $tz) =
2336 ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
2337 $ref_item{'fullname'} = $name;
2338 $name =~ s!^refs/tags/!!;
2339
2340 $ref_item{'type'} = $type;
2341 $ref_item{'id'} = $id;
2342 $ref_item{'name'} = $name;
2343 if ($type eq "tag") {
2344 $ref_item{'subject'} = $title;
2345 $ref_item{'reftype'} = $reftype;
2346 $ref_item{'refid'} = $refid;
2347 } else {
2348 $ref_item{'reftype'} = $type;
2349 $ref_item{'refid'} = $id;
2350 }
2351
2352 if ($type eq "tag" || $type eq "commit") {
2353 $ref_item{'epoch'} = $epoch;
2354 if ($epoch) {
2355 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2356 } else {
2357 $ref_item{'age'} = "unknown";
2358 }
2359 }
2360
2361 push @tagslist, \%ref_item;
2362 }
2363 close $fd;
2364
2365 return wantarray ? @tagslist : \@tagslist;
2366 }
2367
2368 ## ----------------------------------------------------------------------
2369 ## filesystem-related functions
2370
2371 sub get_file_owner {
2372 my $path = shift;
2373
2374 my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
2375 my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
2376 if (!defined $gcos) {
2377 return undef;
2378 }
2379 my $owner = $gcos;
2380 $owner =~ s/[,;].*$//;
2381 return to_utf8($owner);
2382 }
2383
2384 ## ......................................................................
2385 ## mimetype related functions
2386
2387 sub mimetype_guess_file {
2388 my $filename = shift;
2389 my $mimemap = shift;
2390 -r $mimemap or return undef;
2391
2392 my %mimemap;
2393 open(MIME, $mimemap) or return undef;
2394 while (<MIME>) {
2395 next if m/^#/; # skip comments
2396 my ($mime, $exts) = split(/\t+/);
2397 if (defined $exts) {
2398 my @exts = split(/\s+/, $exts);
2399 foreach my $ext (@exts) {
2400 $mimemap{$ext} = $mime;
2401 }
2402 }
2403 }
2404 close(MIME);
2405
2406 $filename =~ /\.([^.]*)$/;
2407 return $mimemap{$1};
2408 }
2409
2410 sub mimetype_guess {
2411 my $filename = shift;
2412 my $mime;
2413 $filename =~ /\./ or return undef;
2414
2415 if ($mimetypes_file) {
2416 my $file = $mimetypes_file;
2417 if ($file !~ m!^/!) { # if it is relative path
2418 # it is relative to project
2419 $file = "$projectroot/$project/$file";
2420 }
2421 $mime = mimetype_guess_file($filename, $file);
2422 }
2423 $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2424 return $mime;
2425 }
2426
2427 sub blob_mimetype {
2428 my $fd = shift;
2429 my $filename = shift;
2430
2431 if ($filename) {
2432 my $mime = mimetype_guess($filename);
2433 $mime and return $mime;
2434 }
2435
2436 # just in case
2437 return $default_blob_plain_mimetype unless $fd;
2438
2439 if (-T $fd) {
2440 return 'text/plain' .
2441 ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2442 } elsif (! $filename) {
2443 return 'application/octet-stream';
2444 } elsif ($filename =~ m/\.png$/i) {
2445 return 'image/png';
2446 } elsif ($filename =~ m/\.gif$/i) {
2447 return 'image/gif';
2448 } elsif ($filename =~ m/\.jpe?g$/i) {
2449 return 'image/jpeg';
2450 } else {
2451 return 'application/octet-stream';
2452 }
2453 }
2454
2455 ## ======================================================================
2456 ## functions printing HTML: header, footer, error page
2457
2458 sub git_header_html {
2459 my $status = shift || "200 OK";
2460 my $expires = shift;
2461
2462 my $title = "$site_name";
2463 if (defined $project) {
2464 $title .= " - " . to_utf8($project);
2465 if (defined $action) {
2466 $title .= "/$action";
2467 if (defined $file_name) {
2468 $title .= " - " . esc_path($file_name);
2469 if ($action eq "tree" && $file_name !~ m|/$|) {
2470 $title .= "/";
2471 }
2472 }
2473 }
2474 }
2475 my $content_type;
2476 # require explicit support from the UA if we are to send the page as
2477 # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2478 # we have to do this because MSIE sometimes globs '*/*', pretending to
2479 # support xhtml+xml but choking when it gets what it asked for.
2480 if (defined $cgi->http('HTTP_ACCEPT') &&
2481 $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2482 $cgi->Accept('application/xhtml+xml') != 0) {
2483 $content_type = 'application/xhtml+xml';
2484 } else {
2485 $content_type = 'text/html';
2486 }
2487 print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2488 -status=> $status, -expires => $expires);
2489 my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2490 print <<EOF;
2491 <?xml version="1.0" encoding="utf-8"?>
2492 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2493 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2494 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2495 <!-- git core binaries version $git_version -->
2496 <head>
2497 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2498 <meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2499 <meta name="robots" content="index, nofollow"/>
2500 <title>$title</title>
2501 EOF
2502 # print out each stylesheet that exist
2503 if (defined $stylesheet) {
2504 #provides backwards capability for those people who define style sheet in a config file
2505 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2506 } else {
2507 foreach my $stylesheet (@stylesheets) {
2508 next unless $stylesheet;
2509 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2510 }
2511 }
2512 if (defined $project) {
2513 printf('<link rel="alternate" title="%s log RSS feed" '.
2514 'href="%s" type="application/rss+xml" />'."\n",
2515 esc_param($project), href(action=>"rss"));
2516 printf('<link rel="alternate" title="%s log RSS feed (no merges)" '.
2517 'href="%s" type="application/rss+xml" />'."\n",
2518 esc_param($project), href(action=>"rss",
2519 extra_options=>"--no-merges"));
2520 printf('<link rel="alternate" title="%s log Atom feed" '.
2521 'href="%s" type="application/atom+xml" />'."\n",
2522 esc_param($project), href(action=>"atom"));
2523 printf('<link rel="alternate" title="%s log Atom feed (no merges)" '.
2524 'href="%s" type="application/atom+xml" />'."\n",
2525 esc_param($project), href(action=>"atom",
2526 extra_options=>"--no-merges"));
2527 } else {
2528 printf('<link rel="alternate" title="%s projects list" '.
2529 'href="%s" type="text/plain; charset=utf-8"/>'."\n",
2530 $site_name, href(project=>undef, action=>"project_index"));
2531 printf('<link rel="alternate" title="%s projects feeds" '.
2532 'href="%s" type="text/x-opml"/>'."\n",
2533 $site_name, href(project=>undef, action=>"opml"));
2534 }
2535 if (defined $favicon) {
2536 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
2537 }
2538
2539 print "</head>\n" .
2540 "<body>\n";
2541
2542 if (-f $site_header) {
2543 open (my $fd, $site_header);
2544 print <$fd>;
2545 close $fd;
2546 }
2547
2548 print "<div class=\"page_header\">\n" .
2549 $cgi->a({-href => esc_url($logo_url),
2550 -title => $logo_label},
2551 qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2552 print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2553 if (defined $project) {
2554 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2555 if (defined $action) {
2556 print " / $action";
2557 }
2558 print "\n";
2559 }
2560 print "</div>\n";
2561
2562 my ($have_search) = gitweb_check_feature('search');
2563 if ((defined $project) && ($have_search)) {
2564 if (!defined $searchtext) {
2565 $searchtext = "";
2566 }
2567 my $search_hash;
2568 if (defined $hash_base) {
2569 $search_hash = $hash_base;
2570 } elsif (defined $hash) {
2571 $search_hash = $hash;
2572 } else {
2573 $search_hash = "HEAD";
2574 }
2575 my $action = $my_uri;
2576 my ($use_pathinfo) = gitweb_check_feature('pathinfo');
2577 if ($use_pathinfo) {
2578 $action .= "/$project";
2579 } else {
2580 $cgi->param("p", $project);
2581 }
2582 $cgi->param("a", "search");
2583 $cgi->param("h", $search_hash);
2584 print $cgi->startform(-method => "get", -action => $action) .
2585 "<div class=\"search\">\n" .
2586 (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
2587 $cgi->hidden(-name => "a") . "\n" .
2588 $cgi->hidden(-name => "h") . "\n" .
2589 $cgi->popup_menu(-name => 'st', -default => 'commit',
2590 -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2591 $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2592 " search:\n",
2593 $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2594 "<span title=\"Extended regular expression\">" .
2595 $cgi->checkbox(-name => 'sr', -value => 1, -label => 're',
2596 -checked => $search_use_regexp) .
2597 "</span>" .
2598 "</div>" .
2599 $cgi->end_form() . "\n";
2600 }
2601 }
2602
2603 sub git_footer_html {
2604 print "<div class=\"page_footer\">\n";
2605 if (defined $project) {
2606 my $descr = git_get_project_description($project);
2607 if (defined $descr) {
2608 print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2609 }
2610 print $cgi->a({-href => href(action=>"rss"),
2611 -class => "rss_logo"}, "RSS") . " ";
2612 print $cgi->a({-href => href(action=>"atom"),
2613 -class => "rss_logo"}, "Atom") . "\n";
2614 } else {
2615 print $cgi->a({-href => href(project=>undef, action=>"opml"),
2616 -class => "rss_logo"}, "OPML") . " ";
2617 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2618 -class => "rss_logo"}, "TXT") . "\n";
2619 }
2620 print "</div>\n" ;
2621
2622 if (-f $site_footer) {
2623 open (my $fd, $site_footer);
2624 print <$fd>;
2625 close $fd;
2626 }
2627
2628 print "</body>\n" .
2629 "</html>";
2630 }
2631
2632 sub die_error {
2633 my $status = shift || "403 Forbidden";
2634 my $error = shift || "Malformed query, file missing or permission denied";
2635
2636 git_header_html($status);
2637 print <<EOF;
2638 <div class="page_body">
2639 <br /><br />
2640 $status - $error
2641 <br />
2642 </div>
2643 EOF
2644 git_footer_html();
2645 exit;
2646 }
2647
2648 ## ----------------------------------------------------------------------
2649 ## functions printing or outputting HTML: navigation
2650
2651 sub git_print_page_nav {
2652 my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2653 $extra = '' if !defined $extra; # pager or formats
2654
2655 my @navs = qw(summary shortlog log commit commitdiff tree);
2656 if ($suppress) {
2657 @navs = grep { $_ ne $suppress } @navs;
2658 }
2659
2660 my %arg = map { $_ => {action=>$_} } @navs;
2661 if (defined $head) {
2662 for (qw(commit commitdiff)) {
2663 $arg{$_}{'hash'} = $head;
2664 }
2665 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2666 for (qw(shortlog log)) {
2667 $arg{$_}{'hash'} = $head;
2668 }
2669 }
2670 }
2671 $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2672 $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2673
2674 print "<div class=\"page_nav\">\n" .
2675 (join " | ",
2676 map { $_ eq $current ?
2677 $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2678 } @navs);
2679 print "<br/>\n$extra<br/>\n" .
2680 "</div>\n";
2681 }
2682
2683 sub format_paging_nav {
2684 my ($action, $hash, $head, $page, $nrevs) = @_;
2685 my $paging_nav;
2686
2687
2688 if ($hash ne $head || $page) {
2689 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2690 } else {
2691 $paging_nav .= "HEAD";
2692 }
2693
2694 if ($page > 0) {
2695 $paging_nav .= " &sdot; " .
2696 $cgi->a({-href => href(-replay=>1, page=>$page-1),
2697 -accesskey => "p", -title => "Alt-p"}, "prev");
2698 } else {
2699 $paging_nav .= " &sdot; prev";
2700 }
2701
2702 if ($nrevs >= (100 * ($page+1)-1)) {
2703 $paging_nav .= " &sdot; " .
2704 $cgi->a({-href => href(-replay=>1, page=>$page+1),
2705 -accesskey => "n", -title => "Alt-n"}, "next");
2706 } else {
2707 $paging_nav .= " &sdot; next";
2708 }
2709
2710 return $paging_nav;
2711 }
2712
2713 ## ......................................................................
2714 ## functions printing or outputting HTML: div
2715
2716 sub git_print_header_div {
2717 my ($action, $title, $hash, $hash_base) = @_;
2718 my %args = ();
2719
2720 $args{'action'} = $action;
2721 $args{'hash'} = $hash if $hash;
2722 $args{'hash_base'} = $hash_base if $hash_base;
2723
2724 print "<div class=\"header\">\n" .
2725 $cgi->a({-href => href(%args), -class => "title"},
2726 $title ? $title : $action) .
2727 "\n</div>\n";
2728 }
2729
2730 #sub git_print_authorship (\%) {
2731 sub git_print_authorship {
2732 my $co = shift;
2733
2734 my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2735 print "<div class=\"author_date\">" .
2736 esc_html($co->{'author_name'}) .
2737 " [$ad{'rfc2822'}";
2738 if ($ad{'hour_local'} < 6) {
2739 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2740 $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2741 } else {
2742 printf(" (%02d:%02d %s)",
2743 $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2744 }
2745 print "]</div>\n";
2746 }
2747
2748 sub git_print_page_path {
2749 my $name = shift;
2750 my $type = shift;
2751 my $hb = shift;
2752
2753
2754 print "<div class=\"page_path\">";
2755 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2756 -title => 'tree root'}, to_utf8("[$project]"));
2757 print " / ";
2758 if (defined $name) {
2759 my @dirname = split '/', $name;
2760 my $basename = pop @dirname;
2761 my $fullname = '';
2762
2763 foreach my $dir (@dirname) {
2764 $fullname .= ($fullname ? '/' : '') . $dir;
2765 print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2766 hash_base=>$hb),
2767 -title => $fullname}, esc_path($dir));
2768 print " / ";
2769 }
2770 if (defined $type && $type eq 'blob') {
2771 print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2772 hash_base=>$hb),
2773 -title => $name}, esc_path($basename));
2774 } elsif (defined $type && $type eq 'tree') {
2775 print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2776 hash_base=>$hb),
2777 -title => $name}, esc_path($basename));
2778 print " / ";
2779 } else {
2780 print esc_path($basename);
2781 }
2782 }
2783 print "<br/></div>\n";
2784 }
2785
2786 # sub git_print_log (\@;%) {
2787 sub git_print_log ($;%) {
2788 my $log = shift;
2789 my %opts = @_;
2790
2791 if ($opts{'-remove_title'}) {
2792 # remove title, i.e. first line of log
2793 shift @$log;
2794 }
2795 # remove leading empty lines
2796 while (defined $log->[0] && $log->[0] eq "") {
2797 shift @$log;
2798 }
2799
2800 # print log
2801 my $signoff = 0;
2802 my $empty = 0;
2803 foreach my $line (@$log) {
2804 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2805 $signoff = 1;
2806 $empty = 0;
2807 if (! $opts{'-remove_signoff'}) {
2808 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2809 next;
2810 } else {
2811 # remove signoff lines
2812 next;
2813 }
2814 } else {
2815 $signoff = 0;
2816 }
2817
2818 # print only one empty line
2819 # do not print empty line after signoff
2820 if ($line eq "") {
2821 next if ($empty || $signoff);
2822 $empty = 1;
2823 } else {
2824 $empty = 0;
2825 }
2826
2827 print format_log_line_html($line) . "<br/>\n";
2828 }
2829
2830 if ($opts{'-final_empty_line'}) {
2831 # end with single empty line
2832 print "<br/>\n" unless $empty;
2833 }
2834 }
2835
2836 # return link target (what link points to)
2837 sub git_get_link_target {
2838 my $hash = shift;
2839 my $link_target;
2840
2841 # read link
2842 open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2843 or return;
2844 {
2845 local $/;
2846 $link_target = <$fd>;
2847 }
2848 close $fd
2849 or return;
2850
2851 return $link_target;
2852 }
2853
2854 # given link target, and the directory (basedir) the link is in,
2855 # return target of link relative to top directory (top tree);
2856 # return undef if it is not possible (including absolute links).
2857 sub normalize_link_target {
2858 my ($link_target, $basedir, $hash_base) = @_;
2859
2860 # we can normalize symlink target only if $hash_base is provided
2861 return unless $hash_base;
2862
2863 # absolute symlinks (beginning with '/') cannot be normalized
2864 return if (substr($link_target, 0, 1) eq '/');
2865
2866 # normalize link target to path from top (root) tree (dir)
2867 my $path;
2868 if ($basedir) {
2869 $path = $basedir . '/' . $link_target;
2870 } else {
2871 # we are in top (root) tree (dir)
2872 $path = $link_target;
2873 }
2874
2875 # remove //, /./, and /../
2876 my @path_parts;
2877 foreach my $part (split('/', $path)) {
2878 # discard '.' and ''
2879 next if (!$part || $part eq '.');
2880 # handle '..'
2881 if ($part eq '..') {
2882 if (@path_parts) {
2883 pop @path_parts;
2884 } else {
2885 # link leads outside repository (outside top dir)
2886 return;
2887 }
2888 } else {
2889 push @path_parts, $part;
2890 }
2891 }
2892 $path = join('/', @path_parts);
2893
2894 return $path;
2895 }
2896
2897 # print tree entry (row of git_tree), but without encompassing <tr> element
2898 sub git_print_tree_entry {
2899 my ($t, $basedir, $hash_base, $have_blame) = @_;
2900
2901 my %base_key = ();
2902 $base_key{'hash_base'} = $hash_base if defined $hash_base;
2903
2904 # The format of a table row is: mode list link. Where mode is
2905 # the mode of the entry, list is the name of the entry, an href,
2906 # and link is the action links of the entry.
2907
2908 print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2909 if ($t->{'type'} eq "blob") {
2910 print "<td class=\"list\">" .
2911 $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2912 file_name=>"$basedir$t->{'name'}", %base_key),
2913 -class => "list"}, esc_path($t->{'name'}));
2914 if (S_ISLNK(oct $t->{'mode'})) {
2915 my $link_target = git_get_link_target($t->{'hash'});
2916 if ($link_target) {
2917 my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2918 if (defined $norm_target) {
2919 print " -> " .
2920 $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2921 file_name=>$norm_target),
2922 -title => $norm_target}, esc_path($link_target));
2923 } else {
2924 print " -> " . esc_path($link_target);
2925 }
2926 }
2927 }
2928 print "</td>\n";
2929 print "<td class=\"link\">";
2930 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2931 file_name=>"$basedir$t->{'name'}", %base_key)},
2932 "blob");
2933 if ($have_blame) {
2934 print " | " .
2935 $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2936 file_name=>"$basedir$t->{'name'}", %base_key)},
2937 "blame");
2938 }
2939 if (defined $hash_base) {
2940 print " | " .
2941 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2942 hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2943 "history");
2944 }
2945 print " | " .
2946 $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2947 file_name=>"$basedir$t->{'name'}")},
2948 "raw");
2949 print "</td>\n";
2950
2951 } elsif ($t->{'type'} eq "tree") {
2952 print "<td class=\"list\">";
2953 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2954 file_name=>"$basedir$t->{'name'}", %base_key)},
2955 esc_path($t->{'name'}));
2956 print "</td>\n";
2957 print "<td class=\"link\">";
2958 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2959 file_name=>"$basedir$t->{'name'}", %base_key)},
2960 "tree");
2961 if (defined $hash_base) {
2962 print " | " .
2963 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2964 file_name=>"$basedir$t->{'name'}")},
2965 "history");
2966 }
2967 print "</td>\n";
2968 } else {
2969 # unknown object: we can only present history for it
2970 # (this includes 'commit' object, i.e. submodule support)
2971 print "<td class=\"list\">" .
2972 esc_path($t->{'name'}) .
2973 "</td>\n";
2974 print "<td class=\"link\">";
2975 if (defined $hash_base) {
2976 print $cgi->a({-href => href(action=>"history",
2977 hash_base=>$hash_base,
2978 file_name=>"$basedir$t->{'name'}")},
2979 "history");
2980 }
2981 print "</td>\n";
2982 }
2983 }
2984
2985 ## ......................................................................
2986 ## functions printing large fragments of HTML
2987
2988 # get pre-image filenames for merge (combined) diff
2989 sub fill_from_file_info {
2990 my ($diff, @parents) = @_;
2991
2992 $diff->{'from_file'} = [ ];
2993 $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2994 for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2995 if ($diff->{'status'}[$i] eq 'R' ||
2996 $diff->{'status'}[$i] eq 'C') {
2997 $diff->{'from_file'}[$i] =
2998 git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2999 }
3000 }
3001
3002 return $diff;
3003 }
3004
3005 # is current raw difftree line of file deletion
3006 sub is_deleted {
3007 my $diffinfo = shift;
3008
3009 return $diffinfo->{'to_id'} eq ('0' x 40);
3010 }
3011
3012 # does patch correspond to [previous] difftree raw line
3013 # $diffinfo - hashref of parsed raw diff format
3014 # $patchinfo - hashref of parsed patch diff format
3015 # (the same keys as in $diffinfo)
3016 sub is_patch_split {
3017 my ($diffinfo, $patchinfo) = @_;
3018
3019 return defined $diffinfo && defined $patchinfo
3020 && $diffinfo->{'to_file'} eq $patchinfo->{'to_file'};
3021 }
3022
3023
3024 sub git_difftree_body {
3025 my ($difftree, $hash, @parents) = @_;
3026 my ($parent) = $parents[0];
3027 my ($have_blame) = gitweb_check_feature('blame');
3028 print "<div class=\"list_head\">\n";
3029 if ($#{$difftree} > 10) {
3030 print(($#{$difftree} + 1) . " files changed:\n");
3031 }
3032 print "</div>\n";
3033
3034 print "<table class=\"" .
3035 (@parents > 1 ? "combined " : "") .
3036 "diff_tree\">\n";
3037
3038 # header only for combined diff in 'commitdiff' view
3039 my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
3040 if ($has_header) {
3041 # table header
3042 print "<thead><tr>\n" .
3043 "<th></th><th></th>\n"; # filename, patchN link
3044 for (my $i = 0; $i < @parents; $i++) {
3045 my $par = $parents[$i];
3046 print "<th>" .
3047 $cgi->a({-href => href(action=>"commitdiff",
3048 hash=>$hash, hash_parent=>$par),
3049 -title => 'commitdiff to parent number ' .
3050 ($i+1) . ': ' . substr($par,0,7)},
3051 $i+1) .
3052 "&nbsp;</th>\n";
3053 }
3054 print "</tr></thead>\n<tbody>\n";
3055 }
3056
3057 my $alternate = 1;
3058 my $patchno = 0;
3059 foreach my $line (@{$difftree}) {
3060 my $diff = parsed_difftree_line($line);
3061
3062 if ($alternate) {
3063 print "<tr class=\"dark\">\n";
3064 } else {
3065 print "<tr class=\"light\">\n";
3066 }
3067 $alternate ^= 1;
3068
3069 if (exists $diff->{'nparents'}) { # combined diff
3070
3071 fill_from_file_info($diff, @parents)
3072 unless exists $diff->{'from_file'};
3073
3074 if (!is_deleted($diff)) {
3075 # file exists in the result (child) commit
3076 print "<td>" .
3077 $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3078 file_name=>$diff->{'to_file'},
3079 hash_base=>$hash),
3080 -class => "list"}, esc_path($diff->{'to_file'})) .
3081 "</td>\n";
3082 } else {
3083 print "<td>" .
3084 esc_path($diff->{'to_file'}) .
3085 "</td>\n";
3086 }
3087
3088 if ($action eq 'commitdiff') {
3089 # link to patch
3090 $patchno++;
3091 print "<td class=\"link\">" .
3092 $cgi->a({-href => "#patch$patchno"}, "patch") .
3093 " | " .
3094 "</td>\n";
3095 }
3096
3097 my $has_history = 0;
3098 my $not_deleted = 0;
3099 for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
3100 my $hash_parent = $parents[$i];
3101 my $from_hash = $diff->{'from_id'}[$i];
3102 my $from_path = $diff->{'from_file'}[$i];
3103 my $status = $diff->{'status'}[$i];
3104
3105 $has_history ||= ($status ne 'A');
3106 $not_deleted ||= ($status ne 'D');
3107
3108 if ($status eq 'A') {
3109 print "<td class=\"link\" align=\"right\"> | </td>\n";
3110 } elsif ($status eq 'D') {
3111 print "<td class=\"link\">" .
3112 $cgi->a({-href => href(action=>"blob",
3113 hash_base=>$hash,
3114 hash=>$from_hash,
3115 file_name=>$from_path)},
3116 "blob" . ($i+1)) .
3117 " | </td>\n";
3118 } else {
3119 if ($diff->{'to_id'} eq $from_hash) {
3120 print "<td class=\"link nochange\">";
3121 } else {
3122 print "<td class=\"link\">";
3123 }
3124 print $cgi->a({-href => href(action=>"blobdiff",
3125 hash=>$diff->{'to_id'},
3126 hash_parent=>$from_hash,
3127 hash_base=>$hash,
3128 hash_parent_base=>$hash_parent,
3129 file_name=>$diff->{'to_file'},
3130 file_parent=>$from_path)},
3131 "diff" . ($i+1)) .
3132 " | </td>\n";
3133 }
3134 }
3135
3136 print "<td class=\"link\">";
3137 if ($not_deleted) {
3138 print $cgi->a({-href => href(action=>"blob",
3139 hash=>$diff->{'to_id'},
3140 file_name=>$diff->{'to_file'},
3141 hash_base=>$hash)},
3142 "blob");
3143 print " | " if ($has_history);
3144 }
3145 if ($has_history) {
3146 print $cgi->a({-href => href(action=>"history",
3147 file_name=>$diff->{'to_file'},
3148 hash_base=>$hash)},
3149 "history");
3150 }
3151 print "</td>\n";
3152
3153 print "</tr>\n";
3154 next; # instead of 'else' clause, to avoid extra indent
3155 }
3156 # else ordinary diff
3157
3158 my ($to_mode_oct, $to_mode_str, $to_file_type);
3159 my ($from_mode_oct, $from_mode_str, $from_file_type);
3160 if ($diff->{'to_mode'} ne ('0' x 6)) {
3161 $to_mode_oct = oct $diff->{'to_mode'};
3162 if (S_ISREG($to_mode_oct)) { # only for regular file
3163 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
3164 }
3165 $to_file_type = file_type($diff->{'to_mode'});
3166 }
3167 if ($diff->{'from_mode'} ne ('0' x 6)) {
3168 $from_mode_oct = oct $diff->{'from_mode'};
3169 if (S_ISREG($to_mode_oct)) { # only for regular file
3170 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
3171 }
3172 $from_file_type = file_type($diff->{'from_mode'});
3173 }
3174
3175 if ($diff->{'status'} eq "A") { # created
3176 my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
3177 $mode_chng .= " with mode: $to_mode_str" if $to_mode_str;
3178 $mode_chng .= "]</span>";
3179 print "<td>";
3180 print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3181 hash_base=>$hash, file_name=>$diff->{'file'}),
3182 -class => "list"}, esc_path($diff->{'file'}));
3183 print "</td>\n";
3184 print "<td>$mode_chng</td>\n";
3185 print "<td class=\"link\">";
3186 if ($action eq 'commitdiff') {
3187 # link to patch
3188 $patchno++;
3189 print $cgi->a({-href => "#patch$patchno"}, "patch");
3190 print " | ";
3191 }
3192 print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3193 hash_base=>$hash, file_name=>$diff->{'file'})},
3194 "blob");
3195 print "</td>\n";
3196
3197 } elsif ($diff->{'status'} eq "D") { # deleted
3198 my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
3199 print "<td>";
3200 print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3201 hash_base=>$parent, file_name=>$diff->{'file'}),
3202 -class => "list"}, esc_path($diff->{'file'}));
3203 print "</td>\n";
3204 print "<td>$mode_chng</td>\n";
3205 print "<td class=\"link\">";
3206 if ($action eq 'commitdiff') {
3207 # link to patch
3208 $patchno++;
3209 print $cgi->a({-href => "#patch$patchno"}, "patch");
3210 print " | ";
3211 }
3212 print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3213 hash_base=>$parent, file_name=>$diff->{'file'})},
3214 "blob") . " | ";
3215 if ($have_blame) {
3216 print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
3217 file_name=>$diff->{'file'})},
3218 "blame") . " | ";
3219 }
3220 print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
3221 file_name=>$diff->{'file'})},
3222 "history");
3223 print "</td>\n";
3224
3225 } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
3226 my $mode_chnge = "";
3227 if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3228 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
3229 if ($from_file_type ne $to_file_type) {
3230 $mode_chnge .= " from $from_file_type to $to_file_type";
3231 }
3232 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
3233 if ($from_mode_str && $to_mode_str) {
3234 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
3235 } elsif ($to_mode_str) {
3236 $mode_chnge .= " mode: $to_mode_str";
3237 }
3238 }
3239 $mode_chnge .= "]</span>\n";
3240 }
3241 print "<td>";
3242 print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3243 hash_base=>$hash, file_name=>$diff->{'file'}),
3244 -class => "list"}, esc_path($diff->{'file'}));
3245 print "</td>\n";
3246 print "<td>$mode_chnge</td>\n";
3247 print "<td class=\"link\">";
3248 if ($action eq 'commitdiff') {
3249 # link to patch
3250 $patchno++;
3251 print $cgi->a({-href => "#patch$patchno"}, "patch") .
3252 " | ";
3253 } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3254 # "commit" view and modified file (not onlu mode changed)
3255 print $cgi->a({-href => href(action=>"blobdiff",
3256 hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3257 hash_base=>$hash, hash_parent_base=>$parent,
3258 file_name=>$diff->{'file'})},
3259 "diff") .
3260 " | ";
3261 }
3262 print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3263 hash_base=>$hash, file_name=>$diff->{'file'})},
3264 "blob") . " | ";
3265 if ($have_blame) {
3266 print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3267 file_name=>$diff->{'file'})},
3268 "blame") . " | ";
3269 }
3270 print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3271 file_name=>$diff->{'file'})},
3272 "history");
3273 print "</td>\n";
3274
3275 } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
3276 my %status_name = ('R' => 'moved', 'C' => 'copied');
3277 my $nstatus = $status_name{$diff->{'status'}};
3278 my $mode_chng = "";
3279 if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3280 # mode also for directories, so we cannot use $to_mode_str
3281 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
3282 }
3283 print "<td>" .
3284 $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
3285 hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
3286 -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
3287 "<td><span class=\"file_status $nstatus\">[$nstatus from " .
3288 $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
3289 hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
3290 -class => "list"}, esc_path($diff->{'from_file'})) .
3291 " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
3292 "<td class=\"link\">";
3293 if ($action eq 'commitdiff') {
3294 # link to patch
3295 $patchno++;
3296 print $cgi->a({-href => "#patch$patchno"}, "patch") .
3297 " | ";
3298 } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3299 # "commit" view and modified file (not only pure rename or copy)
3300 print $cgi->a({-href => href(action=>"blobdiff",
3301 hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3302 hash_base=>$hash, hash_parent_base=>$parent,
3303 file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
3304 "diff")