cgit.c (view raw)
1/* cgit.c: cgi for the git scm
2 *
3 * Copyright (C) 2006 Lars Hjemli
4 *
5 * Licensed under GNU General Public License v2
6 * (see COPYING for full license text)
7 */
8
9#include "cgit.h"
10#include "cache.h"
11#include "cmd.h"
12#include "configfile.h"
13#include "html.h"
14#include "ui-shared.h"
15#include "ui-stats.h"
16#include "scan-tree.h"
17
18const char *cgit_version = CGIT_VERSION;
19
20void add_mimetype(const char *name, const char *value)
21{
22 struct string_list_item *item;
23
24 item = string_list_insert(xstrdup(name), &ctx.cfg.mimetypes);
25 item->util = xstrdup(value);
26}
27
28struct cgit_filter *new_filter(const char *cmd, int extra_args)
29{
30 struct cgit_filter *f;
31
32 if (!cmd || !cmd[0])
33 return NULL;
34
35 f = xmalloc(sizeof(struct cgit_filter));
36 f->cmd = xstrdup(cmd);
37 f->argv = xmalloc((2 + extra_args) * sizeof(char *));
38 f->argv[0] = f->cmd;
39 f->argv[1] = NULL;
40 return f;
41}
42
43static void process_cached_repolist(const char *path);
44
45void repo_config(struct cgit_repo *repo, const char *name, const char *value)
46{
47 if (!strcmp(name, "name"))
48 repo->name = xstrdup(value);
49 else if (!strcmp(name, "clone-url"))
50 repo->clone_url = xstrdup(value);
51 else if (!strcmp(name, "desc"))
52 repo->desc = xstrdup(value);
53 else if (!strcmp(name, "owner"))
54 repo->owner = xstrdup(value);
55 else if (!strcmp(name, "defbranch"))
56 repo->defbranch = xstrdup(value);
57 else if (!strcmp(name, "snapshots"))
58 repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
59 else if (!strcmp(name, "enable-log-filecount"))
60 repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
61 else if (!strcmp(name, "enable-log-linecount"))
62 repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
63 else if (!strcmp(name, "max-stats"))
64 repo->max_stats = cgit_find_stats_period(value, NULL);
65 else if (!strcmp(name, "module-link"))
66 repo->module_link= xstrdup(value);
67 else if (!strcmp(name, "section"))
68 repo->section = xstrdup(value);
69 else if (!strcmp(name, "readme") && value != NULL) {
70 if (*value == '/')
71 ctx.repo->readme = xstrdup(value);
72 else
73 ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
74 } else if (ctx.cfg.enable_filter_overrides) {
75 if (!strcmp(name, "about-filter"))
76 repo->about_filter = new_filter(value, 0);
77 else if (!strcmp(name, "commit-filter"))
78 repo->commit_filter = new_filter(value, 0);
79 else if (!strcmp(name, "source-filter"))
80 repo->source_filter = new_filter(value, 1);
81 }
82}
83
84void config_cb(const char *name, const char *value)
85{
86 if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
87 ctx.cfg.section = xstrdup(value);
88 else if (!strcmp(name, "repo.url"))
89 ctx.repo = cgit_add_repo(value);
90 else if (ctx.repo && !strcmp(name, "repo.path"))
91 ctx.repo->path = trim_end(value, '/');
92 else if (ctx.repo && !prefixcmp(name, "repo."))
93 repo_config(ctx.repo, name + 5, value);
94 else if (!strcmp(name, "root-title"))
95 ctx.cfg.root_title = xstrdup(value);
96 else if (!strcmp(name, "root-desc"))
97 ctx.cfg.root_desc = xstrdup(value);
98 else if (!strcmp(name, "root-readme"))
99 ctx.cfg.root_readme = xstrdup(value);
100 else if (!strcmp(name, "css"))
101 ctx.cfg.css = xstrdup(value);
102 else if (!strcmp(name, "favicon"))
103 ctx.cfg.favicon = xstrdup(value);
104 else if (!strcmp(name, "footer"))
105 ctx.cfg.footer = xstrdup(value);
106 else if (!strcmp(name, "head-include"))
107 ctx.cfg.head_include = xstrdup(value);
108 else if (!strcmp(name, "header"))
109 ctx.cfg.header = xstrdup(value);
110 else if (!strcmp(name, "logo"))
111 ctx.cfg.logo = xstrdup(value);
112 else if (!strcmp(name, "index-header"))
113 ctx.cfg.index_header = xstrdup(value);
114 else if (!strcmp(name, "index-info"))
115 ctx.cfg.index_info = xstrdup(value);
116 else if (!strcmp(name, "logo-link"))
117 ctx.cfg.logo_link = xstrdup(value);
118 else if (!strcmp(name, "module-link"))
119 ctx.cfg.module_link = xstrdup(value);
120 else if (!strcmp(name, "virtual-root")) {
121 ctx.cfg.virtual_root = trim_end(value, '/');
122 if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
123 ctx.cfg.virtual_root = "";
124 } else if (!strcmp(name, "nocache"))
125 ctx.cfg.nocache = atoi(value);
126 else if (!strcmp(name, "noplainemail"))
127 ctx.cfg.noplainemail = atoi(value);
128 else if (!strcmp(name, "noheader"))
129 ctx.cfg.noheader = atoi(value);
130 else if (!strcmp(name, "snapshots"))
131 ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
132 else if (!strcmp(name, "enable-filter-overrides"))
133 ctx.cfg.enable_filter_overrides = atoi(value);
134 else if (!strcmp(name, "enable-index-links"))
135 ctx.cfg.enable_index_links = atoi(value);
136 else if (!strcmp(name, "enable-log-filecount"))
137 ctx.cfg.enable_log_filecount = atoi(value);
138 else if (!strcmp(name, "enable-log-linecount"))
139 ctx.cfg.enable_log_linecount = atoi(value);
140 else if (!strcmp(name, "max-stats"))
141 ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
142 else if (!strcmp(name, "cache-size"))
143 ctx.cfg.cache_size = atoi(value);
144 else if (!strcmp(name, "cache-root"))
145 ctx.cfg.cache_root = xstrdup(value);
146 else if (!strcmp(name, "cache-root-ttl"))
147 ctx.cfg.cache_root_ttl = atoi(value);
148 else if (!strcmp(name, "cache-repo-ttl"))
149 ctx.cfg.cache_repo_ttl = atoi(value);
150 else if (!strcmp(name, "cache-scanrc-ttl"))
151 ctx.cfg.cache_scanrc_ttl = atoi(value);
152 else if (!strcmp(name, "cache-static-ttl"))
153 ctx.cfg.cache_static_ttl = atoi(value);
154 else if (!strcmp(name, "cache-dynamic-ttl"))
155 ctx.cfg.cache_dynamic_ttl = atoi(value);
156 else if (!strcmp(name, "about-filter"))
157 ctx.cfg.about_filter = new_filter(value, 0);
158 else if (!strcmp(name, "commit-filter"))
159 ctx.cfg.commit_filter = new_filter(value, 0);
160 else if (!strcmp(name, "embedded"))
161 ctx.cfg.embedded = atoi(value);
162 else if (!strcmp(name, "max-message-length"))
163 ctx.cfg.max_msg_len = atoi(value);
164 else if (!strcmp(name, "max-repodesc-length"))
165 ctx.cfg.max_repodesc_len = atoi(value);
166 else if (!strcmp(name, "max-repo-count"))
167 ctx.cfg.max_repo_count = atoi(value);
168 else if (!strcmp(name, "max-commit-count"))
169 ctx.cfg.max_commit_count = atoi(value);
170 else if (!strcmp(name, "scan-path"))
171 if (!ctx.cfg.nocache && ctx.cfg.cache_size)
172 process_cached_repolist(value);
173 else
174 scan_tree(value, repo_config);
175 else if (!strcmp(name, "source-filter"))
176 ctx.cfg.source_filter = new_filter(value, 1);
177 else if (!strcmp(name, "summary-log"))
178 ctx.cfg.summary_log = atoi(value);
179 else if (!strcmp(name, "summary-branches"))
180 ctx.cfg.summary_branches = atoi(value);
181 else if (!strcmp(name, "summary-tags"))
182 ctx.cfg.summary_tags = atoi(value);
183 else if (!strcmp(name, "agefile"))
184 ctx.cfg.agefile = xstrdup(value);
185 else if (!strcmp(name, "renamelimit"))
186 ctx.cfg.renamelimit = atoi(value);
187 else if (!strcmp(name, "robots"))
188 ctx.cfg.robots = xstrdup(value);
189 else if (!strcmp(name, "clone-prefix"))
190 ctx.cfg.clone_prefix = xstrdup(value);
191 else if (!strcmp(name, "local-time"))
192 ctx.cfg.local_time = atoi(value);
193 else if (!prefixcmp(name, "mimetype."))
194 add_mimetype(name + 9, value);
195 else if (!strcmp(name, "include"))
196 parse_configfile(value, config_cb);
197}
198
199static void querystring_cb(const char *name, const char *value)
200{
201 if (!value)
202 value = "";
203
204 if (!strcmp(name,"r")) {
205 ctx.qry.repo = xstrdup(value);
206 ctx.repo = cgit_get_repoinfo(value);
207 } else if (!strcmp(name, "p")) {
208 ctx.qry.page = xstrdup(value);
209 } else if (!strcmp(name, "url")) {
210 ctx.qry.url = xstrdup(value);
211 cgit_parse_url(value);
212 } else if (!strcmp(name, "qt")) {
213 ctx.qry.grep = xstrdup(value);
214 } else if (!strcmp(name, "q")) {
215 ctx.qry.search = xstrdup(value);
216 } else if (!strcmp(name, "h")) {
217 ctx.qry.head = xstrdup(value);
218 ctx.qry.has_symref = 1;
219 } else if (!strcmp(name, "id")) {
220 ctx.qry.sha1 = xstrdup(value);
221 ctx.qry.has_sha1 = 1;
222 } else if (!strcmp(name, "id2")) {
223 ctx.qry.sha2 = xstrdup(value);
224 ctx.qry.has_sha1 = 1;
225 } else if (!strcmp(name, "ofs")) {
226 ctx.qry.ofs = atoi(value);
227 } else if (!strcmp(name, "path")) {
228 ctx.qry.path = trim_end(value, '/');
229 } else if (!strcmp(name, "name")) {
230 ctx.qry.name = xstrdup(value);
231 } else if (!strcmp(name, "mimetype")) {
232 ctx.qry.mimetype = xstrdup(value);
233 } else if (!strcmp(name, "s")){
234 ctx.qry.sort = xstrdup(value);
235 } else if (!strcmp(name, "showmsg")) {
236 ctx.qry.showmsg = atoi(value);
237 } else if (!strcmp(name, "period")) {
238 ctx.qry.period = xstrdup(value);
239 }
240}
241
242char *xstrdupn(const char *str)
243{
244 return (str ? xstrdup(str) : NULL);
245}
246
247static void prepare_context(struct cgit_context *ctx)
248{
249 memset(ctx, 0, sizeof(ctx));
250 ctx->cfg.agefile = "info/web/last-modified";
251 ctx->cfg.nocache = 0;
252 ctx->cfg.cache_size = 0;
253 ctx->cfg.cache_dynamic_ttl = 5;
254 ctx->cfg.cache_max_create_time = 5;
255 ctx->cfg.cache_repo_ttl = 5;
256 ctx->cfg.cache_root = CGIT_CACHE_ROOT;
257 ctx->cfg.cache_root_ttl = 5;
258 ctx->cfg.cache_scanrc_ttl = 15;
259 ctx->cfg.cache_static_ttl = -1;
260 ctx->cfg.css = "/cgit.css";
261 ctx->cfg.logo = "/cgit.png";
262 ctx->cfg.local_time = 0;
263 ctx->cfg.max_repo_count = 50;
264 ctx->cfg.max_commit_count = 50;
265 ctx->cfg.max_lock_attempts = 5;
266 ctx->cfg.max_msg_len = 80;
267 ctx->cfg.max_repodesc_len = 80;
268 ctx->cfg.max_stats = 0;
269 ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
270 ctx->cfg.renamelimit = -1;
271 ctx->cfg.robots = "index, nofollow";
272 ctx->cfg.root_title = "Git repository browser";
273 ctx->cfg.root_desc = "a fast webinterface for the git dscm";
274 ctx->cfg.script_name = CGIT_SCRIPT_NAME;
275 ctx->cfg.section = "";
276 ctx->cfg.summary_branches = 10;
277 ctx->cfg.summary_log = 10;
278 ctx->cfg.summary_tags = 10;
279 ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
280 ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
281 ctx->env.https = xstrdupn(getenv("HTTPS"));
282 ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
283 ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
284 ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
285 ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
286 ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
287 ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
288 ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
289 ctx->page.mimetype = "text/html";
290 ctx->page.charset = PAGE_ENCODING;
291 ctx->page.filename = NULL;
292 ctx->page.size = 0;
293 ctx->page.modified = time(NULL);
294 ctx->page.expires = ctx->page.modified;
295 ctx->page.etag = NULL;
296 memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
297 if (ctx->env.script_name)
298 ctx->cfg.script_name = ctx->env.script_name;
299 if (ctx->env.query_string)
300 ctx->qry.raw = ctx->env.query_string;
301 if (!ctx->env.cgit_config)
302 ctx->env.cgit_config = CGIT_CONFIG;
303}
304
305struct refmatch {
306 char *req_ref;
307 char *first_ref;
308 int match;
309};
310
311int find_current_ref(const char *refname, const unsigned char *sha1,
312 int flags, void *cb_data)
313{
314 struct refmatch *info;
315
316 info = (struct refmatch *)cb_data;
317 if (!strcmp(refname, info->req_ref))
318 info->match = 1;
319 if (!info->first_ref)
320 info->first_ref = xstrdup(refname);
321 return info->match;
322}
323
324char *find_default_branch(struct cgit_repo *repo)
325{
326 struct refmatch info;
327 char *ref;
328
329 info.req_ref = repo->defbranch;
330 info.first_ref = NULL;
331 info.match = 0;
332 for_each_branch_ref(find_current_ref, &info);
333 if (info.match)
334 ref = info.req_ref;
335 else
336 ref = info.first_ref;
337 if (ref)
338 ref = xstrdup(ref);
339 return ref;
340}
341
342static int prepare_repo_cmd(struct cgit_context *ctx)
343{
344 char *tmp;
345 unsigned char sha1[20];
346 int nongit = 0;
347
348 setenv("GIT_DIR", ctx->repo->path, 1);
349 setup_git_directory_gently(&nongit);
350 if (nongit) {
351 ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
352 "config error");
353 tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
354 ctx->repo = NULL;
355 cgit_print_http_headers(ctx);
356 cgit_print_docstart(ctx);
357 cgit_print_pageheader(ctx);
358 cgit_print_error(tmp);
359 cgit_print_docend();
360 return 1;
361 }
362 ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
363
364 if (!ctx->qry.head) {
365 ctx->qry.nohead = 1;
366 ctx->qry.head = find_default_branch(ctx->repo);
367 ctx->repo->defbranch = ctx->qry.head;
368 }
369
370 if (!ctx->qry.head) {
371 cgit_print_http_headers(ctx);
372 cgit_print_docstart(ctx);
373 cgit_print_pageheader(ctx);
374 cgit_print_error("Repository seems to be empty");
375 cgit_print_docend();
376 return 1;
377 }
378
379 if (get_sha1(ctx->qry.head, sha1)) {
380 tmp = xstrdup(ctx->qry.head);
381 ctx->qry.head = ctx->repo->defbranch;
382 ctx->page.status = 404;
383 ctx->page.statusmsg = "not found";
384 cgit_print_http_headers(ctx);
385 cgit_print_docstart(ctx);
386 cgit_print_pageheader(ctx);
387 cgit_print_error(fmt("Invalid branch: %s", tmp));
388 cgit_print_docend();
389 return 1;
390 }
391 return 0;
392}
393
394static void process_request(void *cbdata)
395{
396 struct cgit_context *ctx = cbdata;
397 struct cgit_cmd *cmd;
398
399 cmd = cgit_get_cmd(ctx);
400 if (!cmd) {
401 ctx->page.title = "cgit error";
402 cgit_print_http_headers(ctx);
403 cgit_print_docstart(ctx);
404 cgit_print_pageheader(ctx);
405 cgit_print_error("Invalid request");
406 cgit_print_docend();
407 return;
408 }
409
410 if (cmd->want_repo && !ctx->repo) {
411 cgit_print_http_headers(ctx);
412 cgit_print_docstart(ctx);
413 cgit_print_pageheader(ctx);
414 cgit_print_error(fmt("No repository selected"));
415 cgit_print_docend();
416 return;
417 }
418
419 if (ctx->repo && prepare_repo_cmd(ctx))
420 return;
421
422 if (cmd->want_layout) {
423 cgit_print_http_headers(ctx);
424 cgit_print_docstart(ctx);
425 cgit_print_pageheader(ctx);
426 }
427
428 cmd->fn(ctx);
429
430 if (cmd->want_layout)
431 cgit_print_docend();
432}
433
434int cmp_repos(const void *a, const void *b)
435{
436 const struct cgit_repo *ra = a, *rb = b;
437 return strcmp(ra->url, rb->url);
438}
439
440char *build_snapshot_setting(int bitmap)
441{
442 const struct cgit_snapshot_format *f;
443 char *result = xstrdup("");
444 char *tmp;
445 int len;
446
447 for (f = cgit_snapshot_formats; f->suffix; f++) {
448 if (f->bit & bitmap) {
449 tmp = result;
450 result = xstrdup(fmt("%s%s ", tmp, f->suffix));
451 free(tmp);
452 }
453 }
454 len = strlen(result);
455 if (len)
456 result[len - 1] = '\0';
457 return result;
458}
459
460void print_repo(FILE *f, struct cgit_repo *repo)
461{
462 fprintf(f, "repo.url=%s\n", repo->url);
463 fprintf(f, "repo.name=%s\n", repo->name);
464 fprintf(f, "repo.path=%s\n", repo->path);
465 if (repo->owner)
466 fprintf(f, "repo.owner=%s\n", repo->owner);
467 if (repo->desc)
468 fprintf(f, "repo.desc=%s\n", repo->desc);
469 if (repo->readme)
470 fprintf(f, "repo.readme=%s\n", repo->readme);
471 if (repo->defbranch)
472 fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
473 if (repo->module_link)
474 fprintf(f, "repo.module-link=%s\n", repo->module_link);
475 if (repo->section)
476 fprintf(f, "repo.section=%s\n", repo->section);
477 if (repo->clone_url)
478 fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
479 fprintf(f, "repo.enable-log-filecount=%d\n",
480 repo->enable_log_filecount);
481 fprintf(f, "repo.enable-log-linecount=%d\n",
482 repo->enable_log_linecount);
483 if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
484 fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
485 if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
486 fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
487 if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
488 fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
489 if (repo->snapshots != ctx.cfg.snapshots) {
490 char *tmp = build_snapshot_setting(repo->snapshots);
491 fprintf(f, "repo.snapshots=%s\n", tmp);
492 free(tmp);
493 }
494 if (repo->max_stats != ctx.cfg.max_stats)
495 fprintf(f, "repo.max-stats=%s\n",
496 cgit_find_stats_periodname(repo->max_stats));
497 fprintf(f, "\n");
498}
499
500void print_repolist(FILE *f, struct cgit_repolist *list, int start)
501{
502 int i;
503
504 for(i = start; i < list->count; i++)
505 print_repo(f, &list->repos[i]);
506}
507
508/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
509 * and return 0 on success.
510 */
511static int generate_cached_repolist(const char *path, const char *cached_rc)
512{
513 char *locked_rc;
514 int idx;
515 FILE *f;
516
517 locked_rc = xstrdup(fmt("%s.lock", cached_rc));
518 f = fopen(locked_rc, "wx");
519 if (!f) {
520 /* Inform about the error unless the lockfile already existed,
521 * since that only means we've got concurrent requests.
522 */
523 if (errno != EEXIST)
524 fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
525 locked_rc, strerror(errno), errno);
526 return errno;
527 }
528 idx = cgit_repolist.count;
529 scan_tree(path, repo_config);
530 print_repolist(f, &cgit_repolist, idx);
531 if (rename(locked_rc, cached_rc))
532 fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
533 locked_rc, cached_rc, strerror(errno), errno);
534 fclose(f);
535 return 0;
536}
537
538static void process_cached_repolist(const char *path)
539{
540 struct stat st;
541 char *cached_rc;
542 time_t age;
543
544 cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
545 hash_str(path)));
546
547 if (stat(cached_rc, &st)) {
548 /* Nothing is cached, we need to scan without forking. And
549 * if we fail to generate a cached repolist, we need to
550 * invoke scan_tree manually.
551 */
552 if (generate_cached_repolist(path, cached_rc))
553 scan_tree(path, repo_config);
554 return;
555 }
556
557 parse_configfile(cached_rc, config_cb);
558
559 /* If the cached configfile hasn't expired, lets exit now */
560 age = time(NULL) - st.st_mtime;
561 if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
562 return;
563
564 /* The cached repolist has been parsed, but it was old. So lets
565 * rescan the specified path and generate a new cached repolist
566 * in a child-process to avoid latency for the current request.
567 */
568 if (fork())
569 return;
570
571 exit(generate_cached_repolist(path, cached_rc));
572}
573
574static void cgit_parse_args(int argc, const char **argv)
575{
576 int i;
577 int scan = 0;
578
579 for (i = 1; i < argc; i++) {
580 if (!strncmp(argv[i], "--cache=", 8)) {
581 ctx.cfg.cache_root = xstrdup(argv[i]+8);
582 }
583 if (!strcmp(argv[i], "--nocache")) {
584 ctx.cfg.nocache = 1;
585 }
586 if (!strcmp(argv[i], "--nohttp")) {
587 ctx.env.no_http = "1";
588 }
589 if (!strncmp(argv[i], "--query=", 8)) {
590 ctx.qry.raw = xstrdup(argv[i]+8);
591 }
592 if (!strncmp(argv[i], "--repo=", 7)) {
593 ctx.qry.repo = xstrdup(argv[i]+7);
594 }
595 if (!strncmp(argv[i], "--page=", 7)) {
596 ctx.qry.page = xstrdup(argv[i]+7);
597 }
598 if (!strncmp(argv[i], "--head=", 7)) {
599 ctx.qry.head = xstrdup(argv[i]+7);
600 ctx.qry.has_symref = 1;
601 }
602 if (!strncmp(argv[i], "--sha1=", 7)) {
603 ctx.qry.sha1 = xstrdup(argv[i]+7);
604 ctx.qry.has_sha1 = 1;
605 }
606 if (!strncmp(argv[i], "--ofs=", 6)) {
607 ctx.qry.ofs = atoi(argv[i]+6);
608 }
609 if (!strncmp(argv[i], "--scan-tree=", 12) ||
610 !strncmp(argv[i], "--scan-path=", 12)) {
611 scan++;
612 scan_tree(argv[i] + 12, repo_config);
613 }
614 }
615 if (scan) {
616 qsort(cgit_repolist.repos, cgit_repolist.count,
617 sizeof(struct cgit_repo), cmp_repos);
618 print_repolist(stdout, &cgit_repolist, 0);
619 exit(0);
620 }
621}
622
623static int calc_ttl()
624{
625 if (!ctx.repo)
626 return ctx.cfg.cache_root_ttl;
627
628 if (!ctx.qry.page)
629 return ctx.cfg.cache_repo_ttl;
630
631 if (ctx.qry.has_symref)
632 return ctx.cfg.cache_dynamic_ttl;
633
634 if (ctx.qry.has_sha1)
635 return ctx.cfg.cache_static_ttl;
636
637 return ctx.cfg.cache_repo_ttl;
638}
639
640int main(int argc, const char **argv)
641{
642 const char *path;
643 char *qry;
644 int err, ttl;
645
646 prepare_context(&ctx);
647 cgit_repolist.length = 0;
648 cgit_repolist.count = 0;
649 cgit_repolist.repos = NULL;
650
651 cgit_parse_args(argc, argv);
652 parse_configfile(ctx.env.cgit_config, config_cb);
653 ctx.repo = NULL;
654 http_parse_querystring(ctx.qry.raw, querystring_cb);
655
656 /* If virtual-root isn't specified in cgitrc, lets pretend
657 * that virtual-root equals SCRIPT_NAME.
658 */
659 if (!ctx.cfg.virtual_root)
660 ctx.cfg.virtual_root = ctx.cfg.script_name;
661
662 /* If no url parameter is specified on the querystring, lets
663 * use PATH_INFO as url. This allows cgit to work with virtual
664 * urls without the need for rewriterules in the webserver (as
665 * long as PATH_INFO is included in the cache lookup key).
666 */
667 path = ctx.env.path_info;
668 if (!ctx.qry.url && path) {
669 if (path[0] == '/')
670 path++;
671 ctx.qry.url = xstrdup(path);
672 if (ctx.qry.raw) {
673 qry = ctx.qry.raw;
674 ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
675 free(qry);
676 } else
677 ctx.qry.raw = xstrdup(ctx.qry.url);
678 cgit_parse_url(ctx.qry.url);
679 }
680
681 ttl = calc_ttl();
682 ctx.page.expires += ttl*60;
683 if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
684 ctx.cfg.nocache = 1;
685 if (ctx.cfg.nocache)
686 ctx.cfg.cache_size = 0;
687 err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
688 ctx.qry.raw, ttl, process_request, &ctx);
689 if (err)
690 cgit_print_error(fmt("Error processing page: %s (%d)",
691 strerror(err), err));
692 return err;
693}