aboutsummaryrefslogtreecommitdiffstats
path: root/cgit.c
blob: 540200e01d93215910e7c759f0a169457f7e69ac (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
/* cgit.c: cgi for the git scm
 *
 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "cache.h"
#include "cmd.h"
#include "configfile.h"
#include "html.h"
#include "ui-shared.h"
#include "ui-stats.h"
#include "ui-blob.h"
#include "ui-summary.h"
#include "scan-tree.h"

const char *cgit_version = CGIT_VERSION;

static void add_mimetype(const char *name, const char *value)
{
	struct string_list_item *item;

	item = string_list_insert(&ctx.cfg.mimetypes, xstrdup(name));
	item->util = xstrdup(value);
}

static void process_cached_repolist(const char *path);

static void repo_config(struct cgit_repo *repo, const char *name, const char *value)
{
	struct string_list_item *item;

	if (!strcmp(name, "name"))
		repo->name = xstrdup(value);
	else if (!strcmp(name, "clone-url"))
		repo->clone_url = xstrdup(value);
	else if (!strcmp(name, "desc"))
		repo->desc = xstrdup(value);
	else if (!strcmp(name, "owner"))
		repo->owner = xstrdup(value);
	else if (!strcmp(name, "homepage"))
		repo->homepage = xstrdup(value);
	else if (!strcmp(name, "defbranch"))
		repo->defbranch = xstrdup(value);
	else if (!strcmp(name, "namespace"))
		repo->namespace = xstrdup(value);
	else if (!strcmp(name, "snapshots"))
		repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
	else if (!strcmp(name, "enable-commit-graph"))
		repo->enable_commit_graph = atoi(value);
	else if (!strcmp(name, "enable-log-filecount"))
		repo->enable_log_filecount = atoi(value);
	else if (!strcmp(name, "enable-log-linecount"))
		repo->enable_log_linecount = atoi(value);
	else if (!strcmp(name, "enable-remote-branches"))
		repo->enable_remote_branches = atoi(value);
	else if (!strcmp(name, "enable-subject-links"))
		repo->enable_subject_links = atoi(value);
	else if (!strcmp(name, "enable-html-serving"))
		repo->enable_html_serving = atoi(value);
	else if (!strcmp(name, "branch-sort")) {
		if (!strcmp(value, "age"))
			repo->branch_sort = 1;
		if (!strcmp(value, "name"))
			repo->branch_sort = 0;
	} else if (!strcmp(name, "commit-sort")) {
		if (!strcmp(value, "date"))
			repo->commit_sort = 1;
		if (!strcmp(value, "topo"))
			repo->commit_sort = 2;
	} else if (!strcmp(name, "max-stats"))
		repo->max_stats = cgit_find_stats_period(value, NULL);
	else if (!strcmp(name, "module-link"))
		repo->module_link= xstrdup(value);
	else if (starts_with(name, "module-link.")) {
		item = string_list_append(&repo->submodules, xstrdup(name + 12));
		item->util = xstrdup(value);
	} else if (!strcmp(name, "section"))
		repo->section = xstrdup(value);
	else if (!strcmp(name, "readme") && value != NULL) {
		if (repo->readme.items == ctx.cfg.readme.items)
			memset(&repo->readme, 0, sizeof(repo->readme));
		string_list_append(&repo->readme, xstrdup(value));
	} else if (!strcmp(name, "logo") && value != NULL)
		repo->logo = xstrdup(value);
	else if (!strcmp(name, "logo-link") && value != NULL)
		repo->logo_link = xstrdup(value);
	else if (!strcmp(name, "hide"))
		repo->hide = atoi(value);
	else if (!strcmp(name, "ignore"))
		repo->ignore = atoi(value);
	else if (ctx.cfg.enable_filter_overrides) {
		if (!strcmp(name, "about-filter"))
			repo->about_filter = cgit_new_filter(value, ABOUT);
		else if (!strcmp(name, "commit-filter"))
			repo->commit_filter = cgit_new_filter(value, COMMIT);
		else if (!strcmp(name, "source-filter"))
			repo->source_filter = cgit_new_filter(value, SOURCE);
		else if (!strcmp(name, "email-filter"))
			repo->email_filter = cgit_new_filter(value, EMAIL);
		else if (!strcmp(name, "owner-filter"))
			repo->owner_filter = cgit_new_filter(value, OWNER);
	}
}

static void config_cb(const char *name, const char *value)
{
	if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
		ctx.cfg.section = xstrdup(value);
	else if (!strcmp(name, "repo.url"))
		ctx.repo = cgit_add_repo(value);
	else if (ctx.repo && !strcmp(name, "repo.path"))
		ctx.repo->path = trim_end(value, '/');
	else if (ctx.repo && starts_with(name, "repo."))
		repo_config(ctx.repo, name + 5, value);
	else if (!strcmp(name, "readme"))
		string_list_append(&ctx.cfg.readme, xstrdup(value));
	else if (!strcmp(name, "root-title"))
		ctx.cfg.root_title = xstrdup(value);
	else if (!strcmp(name, "root-desc"))
		ctx.cfg.root_desc = xstrdup(value);
	else if (!strcmp(name, "root-readme"))
		ctx.cfg.root_readme = xstrdup(value);
	else if (!strcmp(name, "css"))
		ctx.cfg.css = xstrdup(value);
	else if (!strcmp(name, "favicon"))
		ctx.cfg.favicon = xstrdup(value);
	else if (!strcmp(name, "footer"))
		ctx.cfg.footer = xstrdup(value);
	else if (!strcmp(name, "head-include"))
		ctx.cfg.head_include = xstrdup(value);
	else if (!strcmp(name, "header"))
		ctx.cfg.header = xstrdup(value);
	else if (!strcmp(name, "logo"))
		ctx.cfg.logo = xstrdup(value);
	else if (!strcmp(name, "index-header"))
		ctx.cfg.index_header = xstrdup(value);
	else if (!strcmp(name, "index-info"))
		ctx.cfg.index_info = xstrdup(value);
	else if (!strcmp(name, "logo-link"))
		ctx.cfg.logo_link = xstrdup(value);
	else if (!strcmp(name, "module-link"))
		ctx.cfg.module_link = xstrdup(value);
	else if (!strcmp(name, "strict-export"))
		ctx.cfg.strict_export = xstrdup(value);
	else if (!strcmp(name, "virtual-root")) {
		ctx.cfg.virtual_root = ensure_end(value, '/');
	} else if (!strcmp(name, "nocache"))
		ctx.cfg.nocache = atoi(value);
	else if (!strcmp(name, "noplainemail"))
		ctx.cfg.noplainemail = atoi(value);
	else if (!strcmp(name, "noheader"))
		ctx.cfg.noheader = atoi(value);
	else if (!strcmp(name, "snapshots"))
		ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
	else if (!strcmp(name, "enable-filter-overrides"))
		ctx.cfg.enable_filter_overrides = atoi(value);
	else if (!strcmp(name, "enable-follow-links"))
		ctx.cfg.enable_follow_links = atoi(value);
	else if (!strcmp(name, "enable-http-clone"))
		ctx.cfg.enable_http_clone = atoi(value);
	else if (!strcmp(name, "enable-index-links"))
		ctx.cfg.enable_index_links = atoi(value);
	else if (!strcmp(name, "enable-index-owner"))
		ctx.cfg.enable_index_owner = atoi(value);
	else if (!strcmp(name, "enable-commit-graph"))
		ctx.cfg.enable_commit_graph = atoi(value);
	else if (!strcmp(name, "enable-log-filecount"))
		ctx.cfg.enable_log_filecount = atoi(value);
	else if (!strcmp(name, "enable-log-linecount"))
		ctx.cfg.enable_log_linecount = atoi(value);
	else if (!strcmp(name, "enable-remote-branches"))
		ctx.cfg.enable_remote_branches = atoi(value);
	else if (!strcmp(name, "enable-subject-links"))
		ctx.cfg.enable_subject_links = atoi(value);
	else if (!strcmp(name, "enable-html-serving"))
		ctx.cfg.enable_html_serving = atoi(value);
	else if (!strcmp(name, "enable-tree-linenumbers"))
		ctx.cfg.enable_tree_linenumbers = atoi(value);
	else if (!strcmp(name, "enable-git-config"))
		ctx.cfg.enable_git_config = atoi(value);
	else if (!strcmp(name, "max-stats"))
		ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
	else if (!strcmp(name, "cache-size"))
		ctx.cfg.cache_size = atoi(value);
	else if (!strcmp(name, "cache-root"))
		ctx.cfg.cache_root = xstrdup(expand_macros(value));
	else if (!strcmp(name, "cache-root-ttl"))
		ctx.cfg.cache_root_ttl = atoi(value);
	else if (!strcmp(name, "cache-repo-ttl"))
		ctx.cfg.cache_repo_ttl = atoi(value);
	else if (!strcmp(name, "cache-scanrc-ttl"))
		ctx.cfg.cache_scanrc_ttl = atoi(value);
	else if (!strcmp(name, "cache-static-ttl"))
		ctx.cfg.cache_static_ttl = atoi(value);
	else if (!strcmp(name, "cache-dynamic-ttl"))
		ctx.cfg.cache_dynamic_ttl = atoi(value);
	else if (!strcmp(name, "cache-about-ttl"))
		ctx.cfg.cache_about_ttl = atoi(value);
	else if (!strcmp(name, "cache-snapshot-ttl"))
		ctx.cfg.cache_snapshot_ttl = atoi(value);
	else if (!strcmp(name, "case-sensitive-sort"))
		ctx.cfg.case_sensitive_sort = atoi(value);
	else if (!strcmp(name, "about-filter"))
		ctx.cfg.about_filter = cgit_new_filter(value, ABOUT);
	else if (!strcmp(name, "commit-filter"))
		ctx.cfg.commit_filter = cgit_new_filter(value, COMMIT);
	else if (!strcmp(name, "email-filter"))
		ctx.cfg.email_filter = cgit_new_filter(value, EMAIL);
	else if (!strcmp(name, "owner-filter"))
		ctx.cfg.owner_filter = cgit_new_filter(value, OWNER);
	else if (!strcmp(name, "auth-filter"))
		ctx.cfg.auth_filter = cgit_new_filter(value, AUTH);
	else if (!strcmp(name, "embedded"))
		ctx.cfg.embedded = atoi(value);
	else if (!strcmp(name, "max-atom-items"))
		ctx.cfg.max_atom_items = atoi(value);
	else if (!strcmp(name, "max-message-length"))
		ctx.cfg.max_msg_len = atoi(value);
	else if (!strcmp(name, "max-repodesc-length"))
		ctx.cfg.max_repodesc_len = atoi(value);
	else if (!strcmp(name, "max-blob-size"))
		ctx.cfg.max_blob_size = atoi(value);
	else if (!strcmp(name, "max-repo-count"))
		ctx.cfg.max_repo_count = atoi(value);
	else if (!strcmp(name, "max-commit-count"))
		ctx.cfg.max_commit_count = atoi(value);
	else if (!strcmp(name, "project-list"))
		ctx.cfg.project_list = xstrdup(expand_macros(value));
	else if (!strcmp(name, "scan-path"))
		if (!ctx.cfg.nocache && ctx.cfg.cache_size)
			process_cached_repolist(expand_macros(value));
		else if (ctx.cfg.project_list)
			scan_projects(expand_macros(value),
				      ctx.cfg.project_list, repo_config);
		else
			scan_tree(expand_macros(value), repo_config);
	else if (!strcmp(name, "scan-hidden-path"))
		ctx.cfg.scan_hidden_path = atoi(value);
	else if (!strcmp(name, "section-from-path"))
		ctx.cfg.section_from_path = atoi(value);
	else if (!strcmp(name, "repository-sort"))
		ctx.cfg.repository_sort = xstrdup(value);
	else if (!strcmp(name, "section-sort"))
		ctx.cfg.section_sort = atoi(value);
	else if (!strcmp(name, "source-filter"))
		ctx.cfg.source_filter = cgit_new_filter(value, SOURCE);
	else if (!strcmp(name, "summary-log"))
		ctx.cfg.summary_log = atoi(value);
	else if (!strcmp(name, "summary-branches"))
		ctx.cfg.summary_branches = atoi(value);
	else if (!strcmp(name, "summary-tags"))
		ctx.cfg.summary_tags = atoi(value);
	else if (!strcmp(name, "side-by-side-diffs"))
		ctx.cfg.difftype = atoi(value) ? DIFF_SSDIFF : DIFF_UNIFIED;
	else if (!strcmp(name, "agefile"))
		ctx.cfg.agefile = xstrdup(value);
	else if (!strcmp(name, "mimetype-file"))
		ctx.cfg.mimetype_file = xstrdup(value);
	else if (!strcmp(name, "renamelimit"))
		ctx.cfg.renamelimit = atoi(value);
	else if (!strcmp(name, "remove-suffix"))
		ctx.cfg.remove_suffix = atoi(value);
	else if (!strcmp(name, "robots"))
		ctx.cfg.robots = xstrdup(value);
	else if (!strcmp(name, "clone-prefix"))
		ctx.cfg.clone_prefix = xstrdup(value);
	else if (!strcmp(name, "clone-url"))
		ctx.cfg.clone_url = xstrdup(value);
	else if (!strcmp(name, "local-time"))
		ctx.cfg.local_time = atoi(value);
	else if (!strcmp(name, "commit-sort")) {
		if (!strcmp(value, "date"))
			ctx.cfg.commit_sort = 1;
		if (!strcmp(value, "topo"))
			ctx.cfg.commit_sort = 2;
	} else if (!strcmp(name, "branch-sort")) {
		if (!strcmp(value, "age"))
			ctx.cfg.branch_sort = 1;
		if (!strcmp(value, "name"))
			ctx.cfg.branch_sort = 0;
	} else if (starts_with(name, "mimetype."))
		add_mimetype(name + 9, value);
	else if (!strcmp(name, "include"))
		parse_configfile(expand_macros(value), config_cb);
}

static void querystring_cb(const char *name, const char *value)
{
	if (!value)
		value = "";

	if (!strcmp(name,"r")) {
		ctx.qry.repo = xstrdup(value);
		ctx.repo = cgit_get_repoinfo(value);
	} else if (!strcmp(name, "p")) {
		ctx.qry.page = xstrdup(value);
	} else if (!strcmp(name, "url")) {
		if (*value == '/')
			value++;
		ctx.qry.url = xstrdup(value);
		cgit_parse_url(value);
	} else if (!strcmp(name, "qt")) {
		ctx.qry.grep = xstrdup(value);
	} else if (!strcmp(name, "q")) {
		ctx.qry.search = xstrdup(value);
	} else if (!strcmp(name, "h")) {
		ctx.qry.head = xstrdup(value);
		ctx.qry.has_symref = 1;
	} else if (!strcmp(name, "id")) {
		ctx.qry.sha1 = xstrdup(value);
		ctx.qry.has_sha1 = 1;
	} else if (!strcmp(name, "id2")) {
		ctx.qry.sha2 = xstrdup(value);
		ctx.qry.has_sha1 = 1;
	} else if (!strcmp(name, "ofs")) {
		ctx.qry.ofs = atoi(value);
	} else if (!strcmp(name, "path")) {
		ctx.qry.path = trim_end(value, '/');
	} else if (!strcmp(name, "name")) {
		ctx.qry.name = xstrdup(value);
	} else if (!strcmp(name, "s")) {
		ctx.qry.sort = xstrdup(value);
	} else if (!strcmp(name, "showmsg")) {
		ctx.qry.showmsg = atoi(value);
	} else if (!strcmp(name, "period")) {
		ctx.qry.period = xstrdup(value);
	} else if (!strcmp(name, "dt")) {
		ctx.qry.difftype = atoi(value);
		ctx.qry.has_difftype = 1;
	} else if (!strcmp(name, "ss")) {
		/* No longer generated, but there may be links out there. */
		ctx.qry.difftype = atoi(value) ? DIFF_SSDIFF : DIFF_UNIFIED;
		ctx.qry.has_difftype = 1;
	} else if (!strcmp(name, "all")) {
		ctx.qry.show_all = atoi(value);
	} else if (!strcmp(name, "context")) {
		ctx.qry.context = atoi(value);
	} else if (!strcmp(name, "ignorews")) {
		ctx.qry.ignorews = atoi(value);
	} else if (!strcmp(name, "follow")) {
		ctx.qry.follow = atoi(value);
	}
}

static void prepare_context(void)
{
	memset(&ctx, 0, sizeof(ctx));
	ctx.cfg.agefile = "info/web/last-modified";
	ctx.cfg.nocache = 0;
	ctx.cfg.cache_size = 0;
	ctx.cfg.cache_max_create_time = 5;
	ctx.cfg.cache_root = CGIT_CACHE_ROOT;
	ctx.cfg.cache_about_ttl = 15;
	ctx.cfg.cache_snapshot_ttl = 5;
	ctx.cfg.cache_repo_ttl = 5;
	ctx.cfg.cache_root_ttl = 5;
	ctx.cfg.cache_scanrc_ttl = 15;
	ctx.cfg.cache_dynamic_ttl = 5;
	ctx.cfg.cache_static_ttl = -1;
	ctx.cfg.case_sensitive_sort = 1;
	ctx.cfg.branch_sort = 0;
	ctx.cfg.commit_sort = 0;
	ctx.cfg.css = "/cgit.css";
	ctx.cfg.logo = "/cgit.png";
	ctx.cfg.favicon = "/favicon.ico";
	ctx.cfg.local_time = 0;
	ctx.cfg.enable_http_clone = 1;
	ctx.cfg.enable_index_owner = 1;
	ctx.cfg.enable_tree_linenumbers = 1;
	ctx.cfg.enable_git_config = 0;
	ctx.cfg.max_repo_count = 50;
	ctx.cfg.max_commit_count = 50;
	ctx.cfg.max_lock_attempts = 5;
	ctx.cfg.max_msg_len = 80;
	ctx.cfg.max_repodesc_len = 80;
	ctx.cfg.max_blob_size = 0;
	ctx.cfg.max_stats = 0;
	ctx.cfg.project_list = NULL;
	ctx.cfg.renamelimit = -1;
	ctx.cfg.remove_suffix = 0;
	ctx.cfg.robots = "index, nofollow";
	ctx.cfg.root_title = "Git repository browser";
	ctx.cfg.root_desc = "a fast webinterface for the git dscm";
	ctx.cfg.scan_hidden_path = 0;
	ctx.cfg.script_name = CGIT_SCRIPT_NAME;
	ctx.cfg.section = "";
	ctx.cfg.repository_sort = "name";
	ctx.cfg.section_sort = 1;
	ctx.cfg.summary_branches = 10;
	ctx.cfg.summary_log = 10;
	ctx.cfg.summary_tags = 10;
	ctx.cfg.max_atom_items = 10;
	ctx.cfg.difftype = DIFF_UNIFIED;
	ctx.env.cgit_config = getenv("CGIT_CONFIG");
	ctx.env.http_host = getenv("HTTP_HOST");
	ctx.env.https = getenv("HTTPS");
	ctx.env.no_http = getenv("NO_HTTP");
	ctx.env.path_info = getenv("PATH_INFO");
	ctx.env.query_string = getenv("QUERY_STRING");
	ctx.env.request_method = getenv("REQUEST_METHOD");
	ctx.env.script_name = getenv("SCRIPT_NAME");
	ctx.env.server_name = getenv("SERVER_NAME");
	ctx.env.server_port = getenv("SERVER_PORT");
	ctx.env.http_cookie = getenv("HTTP_COOKIE");
	ctx.env.http_referer = getenv("HTTP_REFERER");
	ctx.env.content_length = getenv("CONTENT_LENGTH") ? strtoul(getenv("CONTENT_LENGTH"), NULL, 10) : 0;
	ctx.env.authenticated = 0;
	ctx.page.mimetype = "text/html";
	ctx.page.charset = PAGE_ENCODING;
	ctx.page.filename = NULL;
	ctx.page.size = 0;
	ctx.page.modified = time(NULL);
	ctx.page.expires = ctx.page.modified;
	ctx.page.etag = NULL;
	memset(&ctx.cfg.mimetypes, 0, sizeof(struct string_list));
	if (ctx.env.script_name)
		ctx.cfg.script_name = xstrdup(ctx.env.script_name);
	if (ctx.env.query_string)
		ctx.qry.raw = xstrdup(ctx.env.query_string);
	if (!ctx.env.cgit_config)
		ctx.env.cgit_config = CGIT_CONFIG;
}

struct refmatch {
	char *req_ref;
	char *first_ref;
	int match;
};

static int find_current_ref(const char *refname, const struct object_id *oid,
			    int flags, void *cb_data)
{
	struct refmatch *info;

	info = (struct refmatch *)cb_data;
	if (!strcmp(refname, info->req_ref))
		info->match = 1;
	if (!info->first_ref)
		info->first_ref = xstrdup(refname);
	return info->match;
}

static void free_refmatch_inner(struct refmatch *info)
{
	if (info->first_ref)
		free(info->first_ref);
}

static char *find_default_branch(struct cgit_repo *repo)
{
	struct refmatch info;
	char *ref;

	info.req_ref = repo->defbranch;
	info.first_ref = NULL;
	info.match = 0;
	cgit_for_each_namespaced_ref_in("refs/heads/", find_current_ref, &info);
	if (info.match)
		ref = info.req_ref;
	else
		ref = info.first_ref;
	if (ref)
		ref = xstrdup(ref);
	free_refmatch_inner(&info);

	return ref;
}

static char *guess_defbranch(void)
{
	const char *ref;
	unsigned char sha1[20];
	char *namespaced_head = NULL;

	if (get_git_namespace())
		namespaced_head = mkpathdup("%sHEAD", get_git_namespace());
	/* NOTE: RESOLVE_REF_NO_RECURSE is required to prevent it resolving HEAD
	   into a ref outside of the namespace. */
	ref = resolve_ref_unsafe(namespaced_head ?: "HEAD", RESOLVE_REF_NO_RECURSE, sha1, NULL);
	free(namespaced_head);
	if (!ref || !starts_with(strip_namespace(ref), "refs/heads/"))
		return "master";
	return xstrdup(strip_namespace(ref) + 11);
}
/* The caller must free filename and ref after calling this. */
static inline void parse_readme(const char *readme, char **filename, char **ref, struct cgit_repo *repo)
{
	const char *colon;

	*filename = NULL;
	*ref = NULL;

	if (!readme || !readme[0])
		return;

	/* Check if the readme is tracked in the git repo. */
	colon = strchr(readme, ':');
	if (colon && strlen(colon) > 1) {
		/* If it starts with a colon, we want to use
		 * the default branch */
		if (colon == readme && repo->defbranch)
			*ref = xstrdup(repo->defbranch);
		else
			*ref = xstrndup(readme, colon - readme);
		readme = colon + 1;
	}

	/* Prepend repo path to relative readme path unless tracked. */
	if (!(*ref) && readme[0] != '/')
		*filename = fmtalloc("%s/%s", repo->path, readme);
	else
		*filename = xstrdup(readme);
}
static void choose_readme(struct cgit_repo *repo)
{
	int found;
	char *filename, *ref;
	struct string_list_item *entry;

	if (!repo->readme.nr)
		return;

	found = 0;
	for_each_string_list_item(entry, &repo->readme) {
		parse_readme(entry->string, &filename, &ref, repo);
		if (!filename) {
			free(filename);
			free(ref);
			continue;
		}
		if (ref) {
			if (cgit_ref_path_exists(filename, ref, 1)) {
				found = 1;
				break;
			}
		}
		else if (!access(filename, R_OK)) {
			found = 1;
			break;
		}
		free(filename);
		free(ref);
	}
	repo->readme.strdup_strings = 1;
	string_list_clear(&repo->readme, 0);
	repo->readme.strdup_strings = 0;
	if (found)
		string_list_append(&repo->readme, filename)->util = ref;
}

static void print_no_repo_clone_urls(const char *url)
{
        html("<tr><td><a rel='vcs-git' href='");
        html_url_path(url);
        html("' title='");
        html_attr(ctx.repo->name);
        html(" Git repository'>");
        html_txt(url);
        html("</a></td></tr>\n");
}

static int prepare_repo_cmd(void)
{
	unsigned char sha1[20];
	int nongit = 0;
	int rc;

	/* The path to the git repository. */
	setenv("GIT_DIR", ctx.repo->path, 1);

	/*  Set the namespace in the environment,
	 *  so it gets loaded on the first get_git_namespace() */
	if (ctx.repo->namespace)
		setenv("GIT_NAMESPACE", ctx.repo->namespace, 1);

	/* Do not look in /etc/ for gitconfig and gitattributes. */
	setenv("GIT_CONFIG_NOSYSTEM", "1", 1);
	setenv("GIT_ATTR_NOSYSTEM", "1", 1);
	unsetenv("HOME");
	unsetenv("XDG_CONFIG_HOME");

	/* Setup the git directory and initialize the notes system. Both of these
	 * load local configuration from the git repository, so we do them both while
	 * the HOME variables are unset. */
	setup_git_directory_gently(&nongit);
	init_display_notes(NULL);

	if (nongit) {
		const char *name = ctx.repo->name;
		rc = errno;
		ctx.page.title = fmtalloc("%s - %s", ctx.cfg.root_title,
						"config error");
		ctx.repo = NULL;
		cgit_print_http_headers();
		cgit_print_docstart();
		cgit_print_pageheader();
		cgit_print_error("Failed to open %s: %s", name,
				 rc ? strerror(rc) : "Not a valid git repository");
		cgit_print_docend();
		return 1;
	}
	ctx.page.title = fmtalloc("%s - %s", ctx.repo->name, ctx.repo->desc);

	if (!ctx.repo->defbranch)
		ctx.repo->defbranch = guess_defbranch();

	if (!ctx.qry.head) {
		ctx.qry.nohead = 1;
		ctx.qry.head = find_default_branch(ctx.repo);
	}

	if (!ctx.qry.head) {
		cgit_print_http_headers();
		cgit_print_docstart();
		cgit_print_pageheader();
		cgit_print_error("Repository seems to be empty");
		if (!strcmp(ctx.qry.page, "summary")) {
			html("<table class='list'><tr class='nohover'><td>&nbsp;</td></tr><tr class='nohover'><th class='left'>Clone</th></tr>\n");
			cgit_prepare_repo_env(ctx.repo);
			cgit_add_clone_urls(print_no_repo_clone_urls);
			html("</table>\n");
		}
		cgit_print_docend();
		return 1;
	}

	if (cgit_get_sha1(ctx.qry.head, sha1)) {
		char *old_head = ctx.qry.head;
		ctx.qry.head = xstrdup(ctx.repo->defbranch);
		cgit_print_error_page(404, "Not found",
				"Invalid branch: %s", old_head);
		free(old_head);
		return 1;
	}
	string_list_sort(&ctx.repo->submodules);
	cgit_prepare_repo_env(ctx.repo);
	choose_readme(ctx.repo);
	return 0;
}

static inline void open_auth_filter(const char *function)
{
	cgit_open_filter(ctx.cfg.auth_filter, function,
		ctx.env.http_cookie ? ctx.env.http_cookie : "",
		ctx.env.request_method ? ctx.env.request_method : "",
		ctx.env.query_string ? ctx.env.query_string : "",
		ctx.env.http_referer ? ctx.env.http_referer : "",
		ctx.env.path_info ? ctx.env.path_info : "",
		ctx.env.http_host ? ctx.env.http_host : "",
		ctx.env.https ? ctx.env.https : "",
		ctx.qry.repo ? ctx.qry.repo : "",
		ctx.qry.page ? ctx.qry.page : "",
		ctx.qry.url ? ctx.qry.url : "",
		cgit_loginurl());
}

/* We intentionally keep this rather small, instead of looping and
 * feeding it to the filter a couple bytes at a time. This way, the
 * filter itself does not need to handle any denial of service or
 * buffer bloat issues. If this winds up being too small, people
 * will complain on the mailing list, and we'll increase it as needed. */
#define MAX_AUTHENTICATION_POST_BYTES 4096
/* The filter is expected to spit out "Status: " and all headers. */
static inline void authenticate_post(void)
{
	char buffer[MAX_AUTHENTICATION_POST_BYTES];
	unsigned int len;

	open_auth_filter("authenticate-post");
	len = ctx.env.content_length;
	if (len > MAX_AUTHENTICATION_POST_BYTES)
		len = MAX_AUTHENTICATION_POST_BYTES;
	if (read(STDIN_FILENO, buffer, len) < 0)
		die_errno("Could not read POST from stdin");
	if (write(STDOUT_FILENO, buffer, len) < 0)
		die_errno("Could not write POST to stdout");
	cgit_close_filter(ctx.cfg.auth_filter);
	exit(0);
}

static inline void authenticate_cookie(void)
{
	/* If we don't have an auth_filter, consider all cookies valid, and thus return early. */
	if (!ctx.cfg.auth_filter) {
		ctx.env.authenticated = 1;
		return;
	}

	/* If we're having something POST'd to /login, we're authenticating POST,
	 * instead of the cookie, so call authenticate_post and bail out early.
	 * This pattern here should match /?p=login with POST. */
	if (ctx.env.request_method && ctx.qry.page && !ctx.repo && \
	    !strcmp(ctx.env.request_method, "POST") && !strcmp(ctx.qry.page, "login")) {
		authenticate_post();
		return;
	}

	/* If we've made it this far, we're authenticating the cookie for real, so do that. */
	open_auth_filter("authenticate-cookie");
	ctx.env.authenticated = cgit_close_filter(ctx.cfg.auth_filter);
}

static void process_request(void)
{
	struct cgit_cmd *cmd;

	/* If we're not yet authenticated, no matter what page we're on,
	 * display the authentication body from the auth_filter. This should
	 * never be cached. */
	if (!ctx.env.authenticated) {
		ctx.page.title = "Authentication Required";
		cgit_print_http_headers();
		cgit_print_docstart();
		cgit_print_pageheader();
		open_auth_filter("body");
		cgit_close_filter(ctx.cfg.auth_filter);
		cgit_print_docend();
		return;
	}

	cmd = cgit_get_cmd();
	if (!cmd) {
		ctx.page.title = "cgit error";
		cgit_print_error_page(404, "Not found", "Invalid request");
		return;
	}

	if (!ctx.cfg.enable_http_clone && cmd->is_clone) {
		ctx.page.title = "cgit error";
		cgit_print_error_page(404, "Not found", "Invalid request");
		return;
	}

	/* If cmd->want_vpath is set, assume ctx.qry.path contains a "virtual"
	 * in-project path limit to be made available at ctx.qry.vpath.
	 * Otherwise, no path limit is in effect (ctx.qry.vpath = NULL).
	 */
	ctx.qry.vpath = cmd->want_vpath ? ctx.qry.path : NULL;

	if (cmd->want_repo && !ctx.repo) {
		cgit_print_error_page(400, "Bad request",
				"No repository selected");
		return;
	}

	if (ctx.repo && prepare_repo_cmd())
		return;

	cmd->fn();
}

static int cmp_repos(const void *a, const void *b)
{
	const struct cgit_repo *ra = a, *rb = b;
	return strcmp(ra->url, rb->url);
}

static char *build_snapshot_setting(int bitmap)
{
	const struct cgit_snapshot_format *f;
	struct strbuf result = STRBUF_INIT;

	for (f = cgit_snapshot_formats; f->suffix; f++) {
		if (f->bit & bitmap) {
			if (result.len)
				strbuf_addch(&result, ' ');
			strbuf_addstr(&result, f->suffix);
		}
	}
	return strbuf_detach(&result, NULL);
}

static char *get_first_line(char *txt)
{
	char *t = xstrdup(txt);
	char *p = strchr(t, '\n');
	if (p)
		*p = '\0';
	return t;
}

static void print_repo(FILE *f, struct cgit_repo *repo)
{
	struct string_list_item *item;
	fprintf(f, "repo.url=%s\n", repo->url);
	fprintf(f, "repo.name=%s\n", repo->name);
	fprintf(f, "repo.path=%s\n", repo->path);
	if (repo->namespace)
		fprintf(f, "repo.namespace=%s\n", repo->namespace);
	if (repo->owner)
		fprintf(f, "repo.owner=%s\n", repo->owner);
	if (repo->desc) {
		char *tmp = get_first_line(repo->desc);
		fprintf(f, "repo.desc=%s\n", tmp);
		free(tmp);
	}
	for_each_string_list_item(item, &repo->readme) {
		if (item->util)
			fprintf(f, "repo.readme=%s:%s\n", (char *)item->util, item->string);
		else
			fprintf(f, "repo.readme=%s\n", item->string);
	}
	if (repo->defbranch)
		fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
	if (repo->module_link)
		fprintf(f, "repo.module-link=%s\n", repo->module_link);
	if (repo->section)
		fprintf(f, "repo.section=%s\n", repo->section);
	if (repo->homepage)
		fprintf(f, "repo.homepage=%s\n", repo->homepage);
	if (repo->clone_url)
		fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
	fprintf(f, "repo.enable-commit-graph=%d\n",
	        repo->enable_commit_graph);
	fprintf(f, "repo.enable-log-filecount=%d\n",
	        repo->enable_log_filecount);
	fprintf(f, "repo.enable-log-linecount=%d\n",
	        repo->enable_log_linecount);
	if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
		cgit_fprintf_filter(repo->about_filter, f, "repo.about-filter=");
	if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
		cgit_fprintf_filter(repo->commit_filter, f, "repo.commit-filter=");
	if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
		cgit_fprintf_filter(repo->source_filter, f, "repo.source-filter=");
	if (repo->email_filter && repo->email_filter != ctx.cfg.email_filter)
		cgit_fprintf_filter(repo->email_filter, f, "repo.email-filter=");
	if (repo->owner_filter && repo->owner_filter != ctx.cfg.owner_filter)
		cgit_fprintf_filter(repo->owner_filter, f, "repo.owner-filter=");
	if (repo->snapshots != ctx.cfg.snapshots) {
		char *tmp = build_snapshot_setting(repo->snapshots);
		fprintf(f, "repo.snapshots=%s\n", tmp ? tmp : "");
		free(tmp);
	}
	if (repo->max_stats != ctx.cfg.max_stats)
		fprintf(f, "repo.max-stats=%s\n",
		        cgit_find_stats_periodname(repo->max_stats));
	if (repo->logo)
		fprintf(f, "repo.logo=%s\n", repo->logo);
	if (repo->logo_link)
		fprintf(f, "repo.logo-link=%s\n", repo->logo_link);
	fprintf(f, "repo.enable-remote-branches=%d\n", repo->enable_remote_branches);
	fprintf(f, "repo.enable-subject-links=%d\n", repo->enable_subject_links);
	fprintf(f, "repo.enable-html-serving=%d\n", repo->enable_html_serving);
	if (repo->branch_sort == 1)
		fprintf(f, "repo.branch-sort=age\n");
	if (repo->commit_sort) {
		if (repo->commit_sort == 1)
			fprintf(f, "repo.commit-sort=date\n");
		else if (repo->commit_sort == 2)
			fprintf(f, "repo.commit-sort=topo\n");
	}
	fprintf(f, "repo.hide=%d\n", repo->hide);
	fprintf(f, "repo.ignore=%d\n", repo->ignore);
	fprintf(f, "\n");
}

static void print_repolist(FILE *f, struct cgit_repolist *list, int start)
{
	int i;

	for (i = start; i < list->count; i++)
		print_repo(f, &list->repos[i]);
}

/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
 * and return 0 on success.
 */
static int generate_cached_repolist(const char *path, const char *cached_rc)
{
	struct strbuf locked_rc = STRBUF_INIT;
	int result = 0;
	int idx;
	FILE *f;

	strbuf_addf(&locked_rc, "%s.lock", cached_rc);
	f = fopen(locked_rc.buf, "wx");
	if (!f) {
		/* Inform about the error unless the lockfile already existed,
		 * since that only means we've got concurrent requests.
		 */
		result = errno;
		if (result != EEXIST)
			fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
				locked_rc.buf, strerror(result), result);
		goto out;
	}
	idx = cgit_repolist.count;
	if (ctx.cfg.project_list)
		scan_projects(path, ctx.cfg.project_list, repo_config);
	else
		scan_tree(path, repo_config);
	print_repolist(f, &cgit_repolist, idx);
	if (rename(locked_rc.buf, cached_rc))
		fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
			locked_rc.buf, cached_rc, strerror(errno), errno);
	fclose(f);
out:
	strbuf_release(&locked_rc);
	return result;
}

static void process_cached_repolist(const char *path)
{
	struct stat st;
	struct strbuf cached_rc = STRBUF_INIT;
	time_t age;
	unsigned long hash;

	hash = hash_str(path);
	if (ctx.cfg.project_list)
		hash += hash_str(ctx.cfg.project_list);
	strbuf_addf(&cached_rc, "%s/rc-%8lx", ctx.cfg.cache_root, hash);

	if (stat(cached_rc.buf, &st)) {
		/* Nothing is cached, we need to scan without forking. And
		 * if we fail to generate a cached repolist, we need to
		 * invoke scan_tree manually.
		 */
		if (generate_cached_repolist(path, cached_rc.buf)) {
			if (ctx.cfg.project_list)
				scan_projects(path, ctx.cfg.project_list,
					      repo_config);
			else
				scan_tree(path, repo_config);
		}
		goto out;
	}

	parse_configfile(cached_rc.buf, config_cb);

	/* If the cached configfile hasn't expired, lets exit now */
	age = time(NULL) - st.st_mtime;
	if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
		goto out;

	/* The cached repolist has been parsed, but it was old. So lets
	 * rescan the specified path and generate a new cached repolist
	 * in a child-process to avoid latency for the current request.
	 */
	if (fork())
		goto out;

	exit(generate_cached_repolist(path, cached_rc.buf));
out:
	strbuf_release(&cached_rc);
}

static void cgit_parse_args(int argc, const char **argv)
{
	int i;
	int scan = 0;

	for (i = 1; i < argc; i++) {
		if (!strcmp(argv[i], "--version")) {
			printf("CGit %s | https://git.zx2c4.com/cgit/\n\nCompiled in features:\n", CGIT_VERSION);
#ifdef NO_LUA
			printf("[-] ");
#else
			printf("[+] ");
#endif
			printf("Lua scripting\n");
#ifndef HAVE_LINUX_SENDFILE
			printf("[-] ");
#else
			printf("[+] ");
#endif
			printf("Linux sendfile() usage\n");

			exit(0);
		}
		if (starts_with(argv[i], "--cache=")) {
			ctx.cfg.cache_root = xstrdup(argv[i] + 8);
		} else if (!strcmp(argv[i], "--nocache")) {
			ctx.cfg.nocache = 1;
		} else if (!strcmp(argv[i], "--nohttp")) {
			ctx.env.no_http = "1";
		} else if (starts_with(argv[i], "--query=")) {
			ctx.qry.raw = xstrdup(argv[i] + 8);
		} else if (starts_with(argv[i], "--repo=")) {
			ctx.qry.repo = xstrdup(argv[i] + 7);
		} else if (starts_with(argv[i], "--page=")) {
			ctx.qry.page = xstrdup(argv[i] + 7);
		} else if (starts_with(argv[i], "--head=")) {
			ctx.qry.head = xstrdup(argv[i] + 7);
			ctx.qry.has_symref = 1;
		} else if (starts_with(argv[i], "--sha1=")) {
			ctx.qry.sha1 = xstrdup(argv[i] + 7);
			ctx.qry.has_sha1 = 1;
		} else if (starts_with(argv[i], "--ofs=")) {
			ctx.qry.ofs = atoi(argv[i] + 6);
		} else if (starts_with(argv[i], "--scan-tree=") ||
		           starts_with(argv[i], "--scan-path=")) {
			/*
			 * HACK: The global snapshot bit mask defines the set
			 * of allowed snapshot formats, but the config file
			 * hasn't been parsed yet so the mask is currently 0.
			 * By setting all bits high before scanning we make
			 * sure that any in-repo cgitrc snapshot setting is
			 * respected by scan_tree().
			 *
			 * NOTE: We assume that there aren't more than 8
			 * different snapshot formats supported by cgit...
			 */
			ctx.cfg.snapshots = 0xFF;
			scan++;
			scan_tree(argv[i] + 12, repo_config);
		}
	}
	if (scan) {
		qsort(cgit_repolist.repos, cgit_repolist.count,
			sizeof(struct cgit_repo), cmp_repos);
		print_repolist(stdout, &cgit_repolist, 0);
		exit(0);
	}
}

static int calc_ttl(void)
{
	if (!ctx.repo)
		return ctx.cfg.cache_root_ttl;

	if (!ctx.qry.page)
		return ctx.cfg.cache_repo_ttl;

	if (!strcmp(ctx.qry.page, "about"))
		return ctx.cfg.cache_about_ttl;

	if (!strcmp(ctx.qry.page, "snapshot"))
		return ctx.cfg.cache_snapshot_ttl;

	if (ctx.qry.has_sha1)
		return ctx.cfg.cache_static_ttl;

	if (ctx.qry.has_symref)
		return ctx.cfg.cache_dynamic_ttl;

	return ctx.cfg.cache_repo_ttl;
}

int main(int argc, const char **argv)
{
	const char *path;
	int err, ttl;

	cgit_init_filters();
	atexit(cgit_cleanup_filters);

	prepare_context();
	cgit_repolist.length = 0;
	cgit_repolist.count = 0;
	cgit_repolist.repos = NULL;

	cgit_parse_args(argc, argv);
	parse_configfile(expand_macros(ctx.env.cgit_config), config_cb);
	ctx.repo = NULL;
	http_parse_querystring(ctx.qry.raw, querystring_cb);

	/* If virtual-root isn't specified in cgitrc, lets pretend
	 * that virtual-root equals SCRIPT_NAME, minus any possibly
	 * trailing slashes.
	 */
	if (!ctx.cfg.virtual_root && ctx.cfg.script_name)
		ctx.cfg.virtual_root = ensure_end(ctx.cfg.script_name, '/');

	/* If no url parameter is specified on the querystring, lets
	 * use PATH_INFO as url. This allows cgit to work with virtual
	 * urls without the need for rewriterules in the webserver (as
	 * long as PATH_INFO is included in the cache lookup key).
	 */
	path = ctx.env.path_info;
	if (!ctx.qry.url && path) {
		if (path[0] == '/')
			path++;
		ctx.qry.url = xstrdup(path);
		if (ctx.qry.raw) {
			char *newqry = fmtalloc("%s?%s", path, ctx.qry.raw);
			free(ctx.qry.raw);
			ctx.qry.raw = newqry;
		} else
			ctx.qry.raw = xstrdup(ctx.qry.url);
		cgit_parse_url(ctx.qry.url);
	}

	/* Before we go any further, we set ctx.env.authenticated by checking to see
	 * if the supplied cookie is valid. All cookies are valid if there is no
	 * auth_filter. If there is an auth_filter, the filter decides. */
	authenticate_cookie();

	ttl = calc_ttl();
	if (ttl < 0)
		ctx.page.expires += 10 * 365 * 24 * 60 * 60; /* 10 years */
	else
		ctx.page.expires += ttl * 60;
	if (!ctx.env.authenticated || (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD")))
		ctx.cfg.nocache = 1;
	if (ctx.cfg.nocache)
		ctx.cfg.cache_size = 0;
	err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
			    ctx.qry.raw, ttl, process_request);
	cgit_cleanup_filters();
	if (err)
		cgit_print_error("Error processing page: %s (%d)",
				 strerror(err), err);
	return err;
}