forked from git/git
-
Notifications
You must be signed in to change notification settings - Fork 175
Expand file tree
/
Copy pathgitweb.perl
More file actions
executable file
·8491 lines (7456 loc) · 248 KB
/
gitweb.perl
File metadata and controls
executable file
·8491 lines (7456 loc) · 248 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/usr/bin/perl
# gitweb - simple web interface to track changes in git repositories
#
# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
# (C) 2005, Christian Gierke
#
# This program is licensed under the GPLv2
require v5.26;
use strict;
use warnings;
# handle ACL in file access tests
use filetest 'access';
use CGI qw(:standard :escapeHTML -nosticky);
use CGI::Util qw(unescape);
use CGI::Carp qw(fatalsToBrowser set_message);
use Encode;
use Fcntl ':mode';
use File::Find qw();
use File::Basename qw(basename);
use Time::HiRes qw(gettimeofday tv_interval);
use Digest::MD5 qw(md5_hex);
binmode STDOUT, ':utf8';
if (!defined($CGI::VERSION) || $CGI::VERSION < 4.08) {
eval 'sub CGI::multi_param { CGI::param(@_) }'
}
our $t0 = [ gettimeofday() ];
our $number_of_git_cmds = 0;
BEGIN {
CGI->compile() if $ENV{'MOD_PERL'};
}
our $version = "@GIT_VERSION@";
our ($my_url, $my_uri, $base_url, $path_info, $home_link);
sub evaluate_uri {
our $cgi;
our $my_url = $cgi->url();
our $my_uri = $cgi->url(-absolute => 1);
# Base URL for relative URLs in gitweb ($logo, $favicon, ...),
# needed and used only for URLs with nonempty PATH_INFO
our $base_url = $my_url;
# When the script is used as DirectoryIndex, the URL does not contain the name
# of the script file itself, and $cgi->url() fails to strip PATH_INFO, so we
# have to do it ourselves. We make $path_info global because it's also used
# later on.
#
# Another issue with the script being the DirectoryIndex is that the resulting
# $my_url data is not the full script URL: this is good, because we want
# generated links to keep implying the script name if it wasn't explicitly
# indicated in the URL we're handling, but it means that $my_url cannot be used
# as base URL.
# Therefore, if we needed to strip PATH_INFO, then we know that we have
# to build the base URL ourselves:
our $path_info = decode_utf8($ENV{"PATH_INFO"});
if ($path_info) {
# $path_info has already been URL-decoded by the web server, but
# $my_url and $my_uri have not. URL-decode them so we can properly
# strip $path_info.
$my_url = unescape($my_url);
$my_uri = unescape($my_uri);
if ($my_url =~ s,\Q$path_info\E$,, &&
$my_uri =~ s,\Q$path_info\E$,, &&
defined $ENV{'SCRIPT_NAME'}) {
$base_url = $cgi->url(-base => 1) . $ENV{'SCRIPT_NAME'};
}
}
# target of the home link on top of all pages
our $home_link = $my_uri || "/";
}
# core git executable to use
# this can just be "git" if your webserver has a sensible PATH
our $GIT = "@GIT_BINDIR@/git";
# absolute fs-path which will be prepended to the project path
#our $projectroot = "/pub/scm";
our $projectroot = "@GITWEB_PROJECTROOT@";
# fs traversing limit for getting project list
# the number is relative to the projectroot
our $project_maxdepth = @GITWEB_PROJECT_MAXDEPTH@;
# string of the home link on top of all pages
our $home_link_str = "@GITWEB_HOME_LINK_STR@";
# extra breadcrumbs preceding the home link
our @extra_breadcrumbs = ();
# name of your site or organization to appear in page titles
# replace this with something more descriptive for clearer bookmarks
our $site_name = "@GITWEB_SITENAME@"
|| ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
# html snippet to include in the <head> section of each page
our $site_html_head_string = "@GITWEB_SITE_HTML_HEAD_STRING@";
# filename of html text to include at top of each page
our $site_header = "@GITWEB_SITE_HEADER@";
# html text to include at home page
our $home_text = "@GITWEB_HOMETEXT@";
# filename of html text to include at bottom of each page
our $site_footer = "@GITWEB_SITE_FOOTER@";
# URI of stylesheets
our @stylesheets = ("@GITWEB_CSS@");
# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
our $stylesheet = undef;
# URI of GIT logo (72x27 size)
our $logo = "@GITWEB_LOGO@";
# URI of GIT favicon, assumed to be image/png type
our $favicon = "@GITWEB_FAVICON@";
# URI of gitweb.js (JavaScript code for gitweb)
our $javascript = "@GITWEB_JS@";
# URI and label (title) of GIT logo link
#our $logo_url = "https://www.kernel.org/pub/software/scm/git/docs/";
#our $logo_label = "git documentation";
our $logo_url = "https://git-scm.com/";
our $logo_label = "git homepage";
# source of projects list
our $projects_list = "@GITWEB_LIST@";
# the width (in characters) of the projects list "Description" column
our $projects_list_description_width = 25;
# group projects by category on the projects list
# (enabled if this variable evaluates to true)
our $projects_list_group_categories = 0;
# default category if none specified
# (leave the empty string for no category)
our $project_list_default_category = "";
# default order of projects list
# valid values are none, project, descr, owner, and age
our $default_projects_order = "project";
# show repository only if this file exists
# (only effective if this variable evaluates to true)
our $export_ok = "@GITWEB_EXPORT_OK@";
# don't generate age column on the projects list page
our $omit_age_column = 0;
# don't generate information about owners of repositories
our $omit_owner=0;
# show repository only if this subroutine returns true
# when given the path to the project, for example:
# sub { return -e "$_[0]/git-daemon-export-ok"; }
our $export_auth_hook = undef;
# only allow viewing of repositories also shown on the overview page
our $strict_export = "@GITWEB_STRICT_EXPORT@";
# list of git base URLs used for URL to where fetch project from,
# i.e. full URL is "$git_base_url/$project"
our @git_base_url_list = grep { $_ ne '' } ("@GITWEB_BASE_URL@");
# default blob_plain mimetype and default charset for text/plain blob
our $default_blob_plain_mimetype = 'text/plain';
our $default_text_plain_charset = undef;
# file to use for guessing MIME types before trying /etc/mime.types
# (relative to the current git repository)
our $mimetypes_file = undef;
# assume this charset if line contains non-UTF-8 characters;
# it should be valid encoding (see Encoding::Supported(3pm) for list),
# for which encoding all byte sequences are valid, for example
# 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
# could be even 'utf-8' for the old behavior)
our $fallback_encoding = 'latin1';
# rename detection options for git-diff and git-diff-tree
# - default is '-M', with the cost proportional to
# (number of removed files) * (number of new files).
# - more costly is '-C' (which implies '-M'), with the cost proportional to
# (number of changed files + number of removed files) * (number of new files)
# - even more costly is '-C', '--find-copies-harder' with cost
# (number of files in the original tree) * (number of new files)
# - one might want to include '-B' option, e.g. '-B', '-M'
our @diff_opts = ('-M'); # taken from git_commit
# Disables features that would allow repository owners to inject script into
# the gitweb domain.
our $prevent_xss = 0;
# Path to the highlight executable to use (must be the one from
# http://andre-simon.de/zip/download.php due to assumptions about parameters and output).
# Useful if highlight is not installed on your webserver's PATH.
# [Default: highlight]
our $highlight_bin = "@HIGHLIGHT_BIN@";
# information about snapshot formats that gitweb is capable of serving
our %known_snapshot_formats = (
# name => {
# 'display' => display name,
# 'type' => mime type,
# 'suffix' => filename suffix,
# 'format' => --format for git-archive,
# 'compressor' => [compressor command and arguments]
# (array reference, optional)
# 'disabled' => boolean (optional)}
#
'tgz' => {
'display' => 'tar.gz',
'type' => 'application/x-gzip',
'suffix' => '.tar.gz',
'format' => 'tar',
'compressor' => ['gzip', '-n']},
'tbz2' => {
'display' => 'tar.bz2',
'type' => 'application/x-bzip2',
'suffix' => '.tar.bz2',
'format' => 'tar',
'compressor' => ['bzip2']},
'txz' => {
'display' => 'tar.xz',
'type' => 'application/x-xz',
'suffix' => '.tar.xz',
'format' => 'tar',
'compressor' => ['xz'],
'disabled' => 1},
'zip' => {
'display' => 'zip',
'type' => 'application/x-zip',
'suffix' => '.zip',
'format' => 'zip'},
);
# Aliases so we understand old gitweb.snapshot values in repository
# configuration.
our %known_snapshot_format_aliases = (
'gzip' => 'tgz',
'bzip2' => 'tbz2',
'xz' => 'txz',
# backward compatibility: legacy gitweb config support
'x-gzip' => undef, 'gz' => undef,
'x-bzip2' => undef, 'bz2' => undef,
'x-zip' => undef, '' => undef,
);
# Pixel sizes for icons and avatars. If the default font sizes or lineheights
# are changed, it may be appropriate to change these values too via
# $GITWEB_CONFIG.
our %avatar_size = (
'default' => 16,
'double' => 32
);
# Used to set the maximum load that we will still respond to gitweb queries.
# If server load exceed this value then return "503 server busy" error.
# If gitweb cannot determined server load, it is taken to be 0.
# Leave it undefined (or set to 'undef') to turn off load checking.
our $maxload = 300;
# configuration for 'highlight' (http://andre-simon.de/doku/highlight/en/highlight.php)
# match by basename
our %highlight_basename = (
#'Program' => 'py',
#'Library' => 'py',
'SConstruct' => 'py', # SCons equivalent of Makefile
'Makefile' => 'make',
);
# match by extension
our %highlight_ext = (
# main extensions, defining name of syntax;
# see files in /usr/share/highlight/langDefs/ directory
(map { $_ => $_ } qw(py rb java css js tex bib xml awk bat ini spec tcl sql)),
# alternate extensions, see /etc/highlight/filetypes.conf
(map { $_ => 'c' } qw(c h)),
(map { $_ => 'sh' } qw(sh bash zsh ksh)),
(map { $_ => 'cpp' } qw(cpp cxx c++ cc)),
(map { $_ => 'php' } qw(php php3 php4 php5 phps)),
(map { $_ => 'pl' } qw(pl perl pm)), # perhaps also 'cgi'
(map { $_ => 'make'} qw(make mak mk)),
(map { $_ => 'xml' } qw(xml xhtml html htm)),
);
# You define site-wide feature defaults here; override them with
# $GITWEB_CONFIG as necessary.
our %feature = (
# feature => {
# 'sub' => feature-sub (subroutine),
# 'override' => allow-override (boolean),
# 'default' => [ default options...] (array reference)}
#
# if feature is overridable (it means that allow-override has true value),
# then feature-sub will be called with default options as parameters;
# return value of feature-sub indicates if to enable specified feature
#
# if there is no 'sub' key (no feature-sub), then feature cannot be
# overridden
#
# use gitweb_get_feature(<feature>) to retrieve the <feature> value
# (an array) or gitweb_check_feature(<feature>) to check if <feature>
# is enabled
# Enable the 'blame' blob view, showing the last commit that modified
# each line in the file. This can be very CPU-intensive.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'blame'}{'default'} = [1];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'blame'}{'override'} = 1;
# and in project config gitweb.blame = 0|1;
'blame' => {
'sub' => sub { feature_bool('blame', @_) },
'override' => 0,
'default' => [0]},
# Enable the 'snapshot' link, providing a compressed archive of any
# tree. This can potentially generate high traffic if you have large
# project.
# Value is a list of formats defined in %known_snapshot_formats that
# you wish to offer.
# To disable system wide have in $GITWEB_CONFIG
# $feature{'snapshot'}{'default'} = [];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'snapshot'}{'override'} = 1;
# and in project config, a comma-separated list of formats or "none"
# to disable. Example: gitweb.snapshot = tbz2,zip;
'snapshot' => {
'sub' => \&feature_snapshot,
'override' => 0,
'default' => ['tgz']},
# Enable text search, which will list the commits which match author,
# committer or commit text to a given string. Enabled by default.
# Project specific override is not supported.
#
# Note that this controls all search features, which means that if
# it is disabled, then 'grep' and 'pickaxe' search would also be
# disabled.
'search' => {
'override' => 0,
'default' => [1]},
# Enable grep search, which will list the files in currently selected
# tree containing the given string. Enabled by default. This can be
# potentially CPU-intensive, of course.
# Note that you need to have 'search' feature enabled too.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'grep'}{'default'} = [1];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'grep'}{'override'} = 1;
# and in project config gitweb.grep = 0|1;
'grep' => {
'sub' => sub { feature_bool('grep', @_) },
'override' => 0,
'default' => [1]},
# Enable the pickaxe search, which will list the commits that modified
# a given string in a file. This can be practical and quite faster
# alternative to 'blame', but still potentially CPU-intensive.
# Note that you need to have 'search' feature enabled too.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'pickaxe'}{'default'} = [1];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'pickaxe'}{'override'} = 1;
# and in project config gitweb.pickaxe = 0|1;
'pickaxe' => {
'sub' => sub { feature_bool('pickaxe', @_) },
'override' => 0,
'default' => [1]},
# Enable showing size of blobs in a 'tree' view, in a separate
# column, similar to what 'ls -l' does. This cost a bit of IO.
# To disable system wide have in $GITWEB_CONFIG
# $feature{'show-sizes'}{'default'} = [0];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'show-sizes'}{'override'} = 1;
# and in project config gitweb.showsizes = 0|1;
'show-sizes' => {
'sub' => sub { feature_bool('showsizes', @_) },
'override' => 0,
'default' => [1]},
# Make gitweb use an alternative format of the URLs which can be
# more readable and natural-looking: project name is embedded
# directly in the path and the query string contains other
# auxiliary information. All gitweb installations recognize
# URL in either format; this configures in which formats gitweb
# generates links.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'pathinfo'}{'default'} = [1];
# Project specific override is not supported.
# Note that you will need to change the default location of CSS,
# favicon, logo and possibly other files to an absolute URL. Also,
# if gitweb.cgi serves as your indexfile, you will need to force
# $my_uri to contain the script name in your $GITWEB_CONFIG.
'pathinfo' => {
'override' => 0,
'default' => [0]},
# Make gitweb consider projects in project root subdirectories
# to be forks of existing projects. Given project $projname.git,
# projects matching $projname/*.git will not be shown in the main
# projects list, instead a '+' mark will be added to $projname
# there and a 'forks' view will be enabled for the project, listing
# all the forks. If project list is taken from a file, forks have
# to be listed after the main project.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'forks'}{'default'} = [1];
# Project specific override is not supported.
'forks' => {
'override' => 0,
'default' => [0]},
# Insert custom links to the action bar of all project pages.
# This enables you mainly to link to third-party scripts integrating
# into gitweb; e.g. git-browser for graphical history representation
# or custom web-based repository administration interface.
# The 'default' value consists of a list of triplets in the form
# (label, link, position) where position is the label after which
# to insert the link and link is a format string where %n expands
# to the project name, %f to the project path within the filesystem,
# %h to the current hash (h gitweb parameter) and %b to the current
# hash base (hb gitweb parameter); %% expands to %.
# To enable system wide have in $GITWEB_CONFIG e.g.
# $feature{'actions'}{'default'} = [('graphiclog',
# '/git-browser/by-commit.html?r=%n', 'summary')];
# Project specific override is not supported.
'actions' => {
'override' => 0,
'default' => []},
# Allow gitweb scan project content tags of project repository,
# and display the popular Web 2.0-ish "tag cloud" near the projects
# list. Note that this is something COMPLETELY different from the
# normal Git tags.
# gitweb by itself can show existing tags, but it does not handle
# tagging itself; you need to do it externally, outside gitweb.
# The format is described in git_get_project_ctags() subroutine.
# You may want to install the HTML::TagCloud Perl module to get
# a pretty tag cloud instead of just a list of tags.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'ctags'}{'default'} = [1];
# Project specific override is not supported.
# In the future whether ctags editing is enabled might depend
# on the value, but using 1 should always mean no editing of ctags.
'ctags' => {
'override' => 0,
'default' => [0]},
# The maximum number of patches in a patchset generated in patch
# view. Set this to 0 or undef to disable patch view, or to a
# negative number to remove any limit.
# To disable system wide have in $GITWEB_CONFIG
# $feature{'patches'}{'default'} = [0];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'patches'}{'override'} = 1;
# and in project config gitweb.patches = 0|n;
# where n is the maximum number of patches allowed in a patchset.
'patches' => {
'sub' => \&feature_patches,
'override' => 0,
'default' => [16]},
# Avatar support. When this feature is enabled, views such as
# shortlog or commit will display an avatar associated with
# the email of the committer(s) and/or author(s).
# Currently available providers are gravatar and picon.
# If an unknown provider is specified, the feature is disabled.
# Picon currently relies on the indiana.edu database.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'avatar'}{'default'} = ['<provider>'];
# where <provider> is either gravatar or picon.
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'avatar'}{'override'} = 1;
# and in project config gitweb.avatar = <provider>;
'avatar' => {
'sub' => \&feature_avatar,
'override' => 0,
'default' => ['']},
# Enable displaying how much time and how many git commands
# it took to generate and display page. Disabled by default.
# Project specific override is not supported.
'timed' => {
'override' => 0,
'default' => [0]},
# Enable turning some links into links to actions which require
# JavaScript to run (like 'blame_incremental'). Not enabled by
# default. Project specific override is currently not supported.
'javascript-actions' => {
'override' => 0,
'default' => [0]},
# Enable and configure ability to change common timezone for dates
# in gitweb output via JavaScript. Enabled by default.
# Project specific override is not supported.
'javascript-timezone' => {
'override' => 0,
'default' => [
'local', # default timezone: 'utc', 'local', or '(-|+)HHMM' format,
# or undef to turn off this feature
'gitweb_tz', # name of cookie where to store selected timezone
'datetime', # CSS class used to mark up dates for manipulation
]},
# Syntax highlighting support. This is based on Daniel Svensson's
# and Sham Chukoury's work in gitweb-xmms2.git.
# It requires the 'highlight' program present in $PATH,
# and therefore is disabled by default.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'highlight'}{'default'} = [1];
'highlight' => {
'sub' => sub { feature_bool('highlight', @_) },
'override' => 0,
'default' => [0]},
# Enable displaying of remote heads in the heads list
# To enable system wide have in $GITWEB_CONFIG
# $feature{'remote_heads'}{'default'} = [1];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'remote_heads'}{'override'} = 1;
# and in project config gitweb.remoteheads = 0|1;
'remote_heads' => {
'sub' => sub { feature_bool('remote_heads', @_) },
'override' => 0,
'default' => [0]},
# Enable showing branches under other refs in addition to heads
# To set system wide extra branch refs have in $GITWEB_CONFIG
# $feature{'extra-branch-refs'}{'default'} = ['dirs', 'of', 'choice'];
# To have project specific config enable override in $GITWEB_CONFIG
# $feature{'extra-branch-refs'}{'override'} = 1;
# and in project config gitweb.extrabranchrefs = dirs of choice
# Every directory is separated with whitespace.
'extra-branch-refs' => {
'sub' => \&feature_extra_branch_refs,
'override' => 0,
'default' => []},
# Redact e-mail addresses.
# To enable system wide have in $GITWEB_CONFIG
# $feature{'email-privacy'}{'default'} = [1];
'email-privacy' => {
'sub' => sub { feature_bool('email-privacy', @_) },
'override' => 1,
'default' => [0]},
);
sub gitweb_get_feature {
my ($name) = @_;
return unless exists $feature{$name};
my ($sub, $override, @defaults) = (
$feature{$name}{'sub'},
$feature{$name}{'override'},
@{$feature{$name}{'default'}});
# project specific override is possible only if we have project
our $git_dir; # global variable, declared later
if (!$override || !defined $git_dir) {
return @defaults;
}
if (!defined $sub) {
warn "feature $name is not overridable";
return @defaults;
}
return $sub->(@defaults);
}
# A wrapper to check if a given feature is enabled.
# With this, you can say
#
# my $bool_feat = gitweb_check_feature('bool_feat');
# gitweb_check_feature('bool_feat') or somecode;
#
# instead of
#
# my ($bool_feat) = gitweb_get_feature('bool_feat');
# (gitweb_get_feature('bool_feat'))[0] or somecode;
#
sub gitweb_check_feature {
return (gitweb_get_feature(@_))[0];
}
sub feature_bool {
my $key = shift;
my ($val) = git_get_project_config($key, '--bool');
if (!defined $val) {
return ($_[0]);
} elsif ($val eq 'true') {
return (1);
} elsif ($val eq 'false') {
return (0);
}
}
sub feature_snapshot {
my (@fmts) = @_;
my ($val) = git_get_project_config('snapshot');
if ($val) {
@fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
}
return @fmts;
}
sub feature_patches {
my @val = (git_get_project_config('patches', '--int'));
if (@val) {
return @val;
}
return ($_[0]);
}
sub feature_avatar {
my @val = (git_get_project_config('avatar'));
return @val ? @val : @_;
}
sub feature_extra_branch_refs {
my (@branch_refs) = @_;
my $values = git_get_project_config('extrabranchrefs');
if ($values) {
$values = config_to_multi ($values);
@branch_refs = ();
foreach my $value (@{$values}) {
push @branch_refs, split /\s+/, $value;
}
}
return @branch_refs;
}
# checking HEAD file with -e is fragile if the repository was
# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
# and then pruned.
sub check_head_link {
my ($dir) = @_;
my $headfile = "$dir/HEAD";
return ((-e $headfile) ||
(-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
}
sub check_export_ok {
my ($dir) = @_;
return (check_head_link($dir) &&
(!$export_ok || -e "$dir/$export_ok") &&
(!$export_auth_hook || $export_auth_hook->($dir)));
}
# process alternate names for backward compatibility
# filter out unsupported (unknown) snapshot formats
sub filter_snapshot_fmts {
my @fmts = @_;
@fmts = map {
exists $known_snapshot_format_aliases{$_} ?
$known_snapshot_format_aliases{$_} : $_} @fmts;
@fmts = grep {
exists $known_snapshot_formats{$_} &&
!$known_snapshot_formats{$_}{'disabled'}} @fmts;
}
sub filter_and_validate_refs {
my @refs = @_;
my %unique_refs = ();
foreach my $ref (@refs) {
die_error(500, "Invalid ref '$ref' in 'extra-branch-refs' feature") unless (is_valid_ref_format($ref));
# 'heads' are added implicitly in get_branch_refs().
$unique_refs{$ref} = 1 if ($ref ne 'heads');
}
return sort keys %unique_refs;
}
# If it is set to code reference, it is code that it is to be run once per
# request, allowing updating configurations that change with each request,
# while running other code in config file only once.
#
# Otherwise, if it is false then gitweb would process config file only once;
# if it is true then gitweb config would be run for each request.
our $per_request_config = 1;
# read and parse gitweb config file given by its parameter.
# returns true on success, false on recoverable error, allowing
# to chain this subroutine, using first file that exists.
# dies on errors during parsing config file, as it is unrecoverable.
sub read_config_file {
my $filename = shift;
return unless defined $filename;
if (-e $filename) {
do $filename;
# die if there is a problem accessing the file
die $! if $!;
# die if there are errors parsing config file
die $@ if $@;
return 1;
}
return;
}
our ($GITWEB_CONFIG, $GITWEB_CONFIG_SYSTEM, $GITWEB_CONFIG_COMMON);
sub evaluate_gitweb_config {
our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "@GITWEB_CONFIG@";
our $GITWEB_CONFIG_SYSTEM = $ENV{'GITWEB_CONFIG_SYSTEM'} || "@GITWEB_CONFIG_SYSTEM@";
our $GITWEB_CONFIG_COMMON = $ENV{'GITWEB_CONFIG_COMMON'} || "@GITWEB_CONFIG_COMMON@";
# Protect against duplications of file names, to not read config twice.
# Only one of $GITWEB_CONFIG and $GITWEB_CONFIG_SYSTEM is used, so
# there possibility of duplication of filename there doesn't matter.
$GITWEB_CONFIG = "" if ($GITWEB_CONFIG eq $GITWEB_CONFIG_COMMON);
$GITWEB_CONFIG_SYSTEM = "" if ($GITWEB_CONFIG_SYSTEM eq $GITWEB_CONFIG_COMMON);
# Common system-wide settings for convenience.
# Those settings can be overridden by GITWEB_CONFIG or GITWEB_CONFIG_SYSTEM.
read_config_file($GITWEB_CONFIG_COMMON);
# Use first config file that exists. This means use the per-instance
# GITWEB_CONFIG if exists, otherwise use GITWEB_SYSTEM_CONFIG.
read_config_file($GITWEB_CONFIG) and return;
read_config_file($GITWEB_CONFIG_SYSTEM);
}
# Get loadavg of system, to compare against $maxload.
# Currently it requires '/proc/loadavg' present to get loadavg;
# if it is not present it returns 0, which means no load checking.
sub get_loadavg {
if( -e '/proc/loadavg' ){
open my $fd, '<', '/proc/loadavg'
or return 0;
my @load = split(/\s+/, scalar <$fd>);
close $fd;
# The first three columns measure CPU and IO utilization of the last one,
# five, and 10 minute periods. The fourth column shows the number of
# currently running processes and the total number of processes in the m/n
# format. The last column displays the last process ID used.
return $load[0] || 0;
}
# additional checks for load average should go here for things that don't export
# /proc/loadavg
return 0;
}
# version of the core git binary
our $git_version;
sub evaluate_git_version {
our $git_version = qx("$GIT" --version) =~ m/git version (.*)$/ ? $1 : "unknown";
$number_of_git_cmds++;
}
sub check_loadavg {
if (defined $maxload && get_loadavg() > $maxload) {
die_error(503, "The load average on the server is too high");
}
}
# ======================================================================
# input validation and dispatch
# Various hash size-related values.
my $sha1_len = 40;
my $sha256_extra_len = 24;
my $sha256_len = $sha1_len + $sha256_extra_len;
# A regex matching $len hex characters. $len may be a range (e.g. 7,64).
sub oid_nlen_regex {
my $len = shift;
my $hchr = qr/[0-9a-fA-F]/;
return qr/(?:(?:$hchr){$len})/;
}
# A regex matching two sets of $nlen hex characters, prefixed by the literal
# string $prefix and with the literal string $infix between them.
sub oid_nlen_prefix_infix_regex {
my $nlen = shift;
my $prefix = shift;
my $infix = shift;
my $rx = oid_nlen_regex($nlen);
return qr/^\Q$prefix\E$rx\Q$infix\E$rx$/;
}
# A regex matching a valid object ID.
our $oid_regex;
{
my $x = oid_nlen_regex($sha1_len);
my $y = oid_nlen_regex($sha256_extra_len);
$oid_regex = qr/(?:$x(?:$y)?)/;
}
# input parameters can be collected from a variety of sources (presently, CGI
# and PATH_INFO), so we define an %input_params hash that collects them all
# together during validation: this allows subsequent uses (e.g. href()) to be
# agnostic of the parameter origin
our %input_params = ();
# input parameters are stored with the long parameter name as key. This will
# also be used in the href subroutine to convert parameters to their CGI
# equivalent, and since the href() usage is the most frequent one, we store
# the name -> CGI key mapping here, instead of the reverse.
#
# XXX: Warning: If you touch this, check the search form for updating,
# too.
our @cgi_param_mapping = (
project => "p",
action => "a",
file_name => "f",
file_parent => "fp",
hash => "h",
hash_parent => "hp",
hash_base => "hb",
hash_parent_base => "hpb",
page => "pg",
order => "o",
searchtext => "s",
searchtype => "st",
snapshot_format => "sf",
extra_options => "opt",
search_use_regexp => "sr",
ctag => "by_tag",
diff_style => "ds",
project_filter => "pf",
# this must be last entry (for manipulation from JavaScript)
javascript => "js"
);
our %cgi_param_mapping = @cgi_param_mapping;
# we will also need to know the possible actions, for validation
our %actions = (
"blame" => \&git_blame,
"blame_incremental" => \&git_blame_incremental,
"blame_data" => \&git_blame_data,
"blobdiff" => \&git_blobdiff,
"blobdiff_plain" => \&git_blobdiff_plain,
"blob" => \&git_blob,
"blob_plain" => \&git_blob_plain,
"commitdiff" => \&git_commitdiff,
"commitdiff_plain" => \&git_commitdiff_plain,
"commit" => \&git_commit,
"forks" => \&git_forks,
"heads" => \&git_heads,
"history" => \&git_history,
"log" => \&git_log,
"patch" => \&git_patch,
"patches" => \&git_patches,
"remotes" => \&git_remotes,
"rss" => \&git_rss,
"atom" => \&git_atom,
"search" => \&git_search,
"search_help" => \&git_search_help,
"shortlog" => \&git_shortlog,
"summary" => \&git_summary,
"tag" => \&git_tag,
"tags" => \&git_tags,
"tree" => \&git_tree,
"snapshot" => \&git_snapshot,
"object" => \&git_object,
# those below don't need $project
"opml" => \&git_opml,
"project_list" => \&git_project_list,
"project_index" => \&git_project_index,
);
# finally, we have the hash of allowed extra_options for the commands that
# allow them
our %allowed_options = (
"--no-merges" => [ qw(rss atom log shortlog history) ],
);
# fill %input_params with the CGI parameters. All values except for 'opt'
# should be single values, but opt can be an array. We should probably
# build an array of parameters that can be multi-valued, but since for the time
# being it's only this one, we just single it out
sub evaluate_query_params {
our $cgi;
while (my ($name, $symbol) = each %cgi_param_mapping) {
if ($symbol eq 'opt') {
$input_params{$name} = [ map { decode_utf8($_) } $cgi->multi_param($symbol) ];
} else {
$input_params{$name} = decode_utf8($cgi->param($symbol));
}
}
}
# now read PATH_INFO and update the parameter list for missing parameters
sub evaluate_path_info {
return if defined $input_params{'project'};
return if !$path_info;
$path_info =~ s,^/+,,;
return if !$path_info;
# find which part of PATH_INFO is project
my $project = $path_info;
$project =~ s,/+$,,;
while ($project && !check_head_link("$projectroot/$project")) {
$project =~ s,/*[^/]*$,,;
}
return unless $project;
$input_params{'project'} = $project;
# do not change any parameters if an action is given using the query string
return if $input_params{'action'};
$path_info =~ s,^\Q$project\E/*,,;
# next, check if we have an action
my $action = $path_info;
$action =~ s,/.*$,,;
if (exists $actions{$action}) {
$path_info =~ s,^$action/*,,;
$input_params{'action'} = $action;
}
# list of actions that want hash_base instead of hash, but can have no
# pathname (f) parameter
my @wants_base = (
'tree',
'history',
);
# we want to catch, among others
# [$hash_parent_base[:$file_parent]..]$hash_parent[:$file_name]
my ($parentrefname, $parentpathname, $refname, $pathname) =
($path_info =~ /^(?:(.+?)(?::(.+))?\.\.)?([^:]+?)?(?::(.+))?$/);
# first, analyze the 'current' part
if (defined $pathname) {
# we got "branch:filename" or "branch:dir/"
# we could use git_get_type(branch:pathname), but:
# - it needs $git_dir
# - it does a git() call
# - the convention of terminating directories with a slash
# makes it superfluous
# - embedding the action in the PATH_INFO would make it even
# more superfluous
$pathname =~ s,^/+,,;
if (!$pathname || substr($pathname, -1) eq "/") {
$input_params{'action'} ||= "tree";
$pathname =~ s,/$,,;
} else {
# the default action depends on whether we had parent info
# or not
if ($parentrefname) {
$input_params{'action'} ||= "blobdiff_plain";
} else {
$input_params{'action'} ||= "blob_plain";
}
}
$input_params{'hash_base'} ||= $refname;
$input_params{'file_name'} ||= $pathname;
} elsif (defined $refname) {
# we got "branch". In this case we have to choose if we have to
# set hash or hash_base.
#
# Most of the actions without a pathname only want hash to be