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, "enable-remote-branches"))
64 repo->enable_remote_branches = atoi(value);
65 else if (!strcmp(name, "max-stats"))
66 repo->max_stats = cgit_find_stats_period(value, NULL);
67 else if (!strcmp(name, "module-link"))
68 repo->module_link= xstrdup(value);
69 else if (!strcmp(name, "section"))
70 repo->section = xstrdup(value);
71 else if (!strcmp(name, "readme") && value != NULL) {
72 if (*value == '/')
73 ctx.repo->readme = xstrdup(value);
74 else
75 ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
76 } else if (ctx.cfg.enable_filter_overrides) {
77 if (!strcmp(name, "about-filter"))
78 repo->about_filter = new_filter(value, 0);
79 else if (!strcmp(name, "commit-filter"))
80 repo->commit_filter = new_filter(value, 0);
81 else if (!strcmp(name, "source-filter"))
82 repo->source_filter = new_filter(value, 1);
83 }
84}
85
86void config_cb(const char *name, const char *value)
87{
88 if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
89 ctx.cfg.section = xstrdup(value);
90 else if (!strcmp(name, "repo.url"))
91 ctx.repo = cgit_add_repo(value);
92 else if (ctx.repo && !strcmp(name, "repo.path"))
93 ctx.repo->path = trim_end(value, '/');
94 else if (ctx.repo && !prefixcmp(name, "repo."))
95 repo_config(ctx.repo, name + 5, value);
96 else if (!strcmp(name, "root-title"))
97 ctx.cfg.root_title = xstrdup(value);
98 else if (!strcmp(name, "root-desc"))
99 ctx.cfg.root_desc = xstrdup(value);
100 else if (!strcmp(name, "root-readme"))
101 ctx.cfg.root_readme = xstrdup(value);
102 else if (!strcmp(name, "css"))
103 ctx.cfg.css = xstrdup(value);
104 else if (!strcmp(name, "favicon"))
105 ctx.cfg.favicon = xstrdup(value);
106 else if (!strcmp(name, "footer"))
107 ctx.cfg.footer = xstrdup(value);
108 else if (!strcmp(name, "head-include"))
109 ctx.cfg.head_include = xstrdup(value);
110 else if (!strcmp(name, "header"))
111 ctx.cfg.header = xstrdup(value);
112 else if (!strcmp(name, "logo"))
113 ctx.cfg.logo = xstrdup(value);
114 else if (!strcmp(name, "index-header"))
115 ctx.cfg.index_header = xstrdup(value);
116 else if (!strcmp(name, "index-info"))
117 ctx.cfg.index_info = xstrdup(value);
118 else if (!strcmp(name, "logo-link"))
119 ctx.cfg.logo_link = xstrdup(value);
120 else if (!strcmp(name, "module-link"))
121 ctx.cfg.module_link = xstrdup(value);
122 else if (!strcmp(name, "virtual-root")) {
123 ctx.cfg.virtual_root = trim_end(value, '/');
124 if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
125 ctx.cfg.virtual_root = "";
126 } else if (!strcmp(name, "nocache"))
127 ctx.cfg.nocache = atoi(value);
128 else if (!strcmp(name, "noplainemail"))
129 ctx.cfg.noplainemail = atoi(value);
130 else if (!strcmp(name, "noheader"))
131 ctx.cfg.noheader = atoi(value);
132 else if (!strcmp(name, "snapshots"))
133 ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
134 else if (!strcmp(name, "enable-filter-overrides"))
135 ctx.cfg.enable_filter_overrides = atoi(value);
136 else if (!strcmp(name, "enable-index-links"))
137 ctx.cfg.enable_index_links = atoi(value);
138 else if (!strcmp(name, "enable-log-filecount"))
139 ctx.cfg.enable_log_filecount = atoi(value);
140 else if (!strcmp(name, "enable-log-linecount"))
141 ctx.cfg.enable_log_linecount = atoi(value);
142 else if (!strcmp(name, "enable-remote-branches"))
143 ctx.cfg.enable_remote_branches = atoi(value);
144 else if (!strcmp(name, "enable-tree-linenumbers"))
145 ctx.cfg.enable_tree_linenumbers = atoi(value);
146 else if (!strcmp(name, "max-stats"))
147 ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
148 else if (!strcmp(name, "cache-size"))
149 ctx.cfg.cache_size = atoi(value);
150 else if (!strcmp(name, "cache-root"))
151 ctx.cfg.cache_root = xstrdup(value);
152 else if (!strcmp(name, "cache-root-ttl"))
153 ctx.cfg.cache_root_ttl = atoi(value);
154 else if (!strcmp(name, "cache-repo-ttl"))
155 ctx.cfg.cache_repo_ttl = atoi(value);
156 else if (!strcmp(name, "cache-scanrc-ttl"))
157 ctx.cfg.cache_scanrc_ttl = atoi(value);
158 else if (!strcmp(name, "cache-static-ttl"))
159 ctx.cfg.cache_static_ttl = atoi(value);
160 else if (!strcmp(name, "cache-dynamic-ttl"))
161 ctx.cfg.cache_dynamic_ttl = atoi(value);
162 else if (!strcmp(name, "about-filter"))
163 ctx.cfg.about_filter = new_filter(value, 0);
164 else if (!strcmp(name, "commit-filter"))
165 ctx.cfg.commit_filter = new_filter(value, 0);
166 else if (!strcmp(name, "embedded"))
167 ctx.cfg.embedded = atoi(value);
168 else if (!strcmp(name, "max-message-length"))
169 ctx.cfg.max_msg_len = atoi(value);
170 else if (!strcmp(name, "max-repodesc-length"))
171 ctx.cfg.max_repodesc_len = atoi(value);
172 else if (!strcmp(name, "max-repo-count"))
173 ctx.cfg.max_repo_count = atoi(value);
174 else if (!strcmp(name, "max-commit-count"))
175 ctx.cfg.max_commit_count = atoi(value);
176 else if (!strcmp(name, "scan-path"))
177 if (!ctx.cfg.nocache && ctx.cfg.cache_size)
178 process_cached_repolist(value);
179 else
180 scan_tree(value, repo_config);
181 else if (!strcmp(name, "source-filter"))
182 ctx.cfg.source_filter = new_filter(value, 1);
183 else if (!strcmp(name, "summary-log"))
184 ctx.cfg.summary_log = atoi(value);
185 else if (!strcmp(name, "summary-branches"))
186 ctx.cfg.summary_branches = atoi(value);
187 else if (!strcmp(name, "summary-tags"))
188 ctx.cfg.summary_tags = atoi(value);
189 else if (!strcmp(name, "agefile"))
190 ctx.cfg.agefile = xstrdup(value);
191 else if (!strcmp(name, "renamelimit"))
192 ctx.cfg.renamelimit = atoi(value);
193 else if (!strcmp(name, "robots"))
194 ctx.cfg.robots = xstrdup(value);
195 else if (!strcmp(name, "clone-prefix"))
196 ctx.cfg.clone_prefix = xstrdup(value);
197 else if (!strcmp(name, "local-time"))
198 ctx.cfg.local_time = atoi(value);
199 else if (!prefixcmp(name, "mimetype."))
200 add_mimetype(name + 9, value);
201 else if (!strcmp(name, "include"))
202 parse_configfile(value, config_cb);
203}
204
205static void querystring_cb(const char *name, const char *value)
206{
207 if (!value)
208 value = "";
209
210 if (!strcmp(name,"r")) {
211 ctx.qry.repo = xstrdup(value);
212 ctx.repo = cgit_get_repoinfo(value);
213 } else if (!strcmp(name, "p")) {
214 ctx.qry.page = xstrdup(value);
215 } else if (!strcmp(name, "url")) {
216 if (*value == '/')
217 value++;
218 ctx.qry.url = xstrdup(value);
219 cgit_parse_url(value);
220 } else if (!strcmp(name, "qt")) {
221 ctx.qry.grep = xstrdup(value);
222 } else if (!strcmp(name, "q")) {
223 ctx.qry.search = xstrdup(value);
224 } else if (!strcmp(name, "h")) {
225 ctx.qry.head = xstrdup(value);
226 ctx.qry.has_symref = 1;
227 } else if (!strcmp(name, "id")) {
228 ctx.qry.sha1 = xstrdup(value);
229 ctx.qry.has_sha1 = 1;
230 } else if (!strcmp(name, "id2")) {
231 ctx.qry.sha2 = xstrdup(value);
232 ctx.qry.has_sha1 = 1;
233 } else if (!strcmp(name, "ofs")) {
234 ctx.qry.ofs = atoi(value);
235 } else if (!strcmp(name, "path")) {
236 ctx.qry.path = trim_end(value, '/');
237 } else if (!strcmp(name, "name")) {
238 ctx.qry.name = xstrdup(value);
239 } else if (!strcmp(name, "mimetype")) {
240 ctx.qry.mimetype = xstrdup(value);
241 } else if (!strcmp(name, "s")){
242 ctx.qry.sort = xstrdup(value);
243 } else if (!strcmp(name, "showmsg")) {
244 ctx.qry.showmsg = atoi(value);
245 } else if (!strcmp(name, "period")) {
246 ctx.qry.period = xstrdup(value);
247 }
248}
249
250char *xstrdupn(const char *str)
251{
252 return (str ? xstrdup(str) : NULL);
253}
254
255static void prepare_context(struct cgit_context *ctx)
256{
257 memset(ctx, 0, sizeof(ctx));
258 ctx->cfg.agefile = "info/web/last-modified";
259 ctx->cfg.nocache = 0;
260 ctx->cfg.cache_size = 0;
261 ctx->cfg.cache_dynamic_ttl = 5;
262 ctx->cfg.cache_max_create_time = 5;
263 ctx->cfg.cache_repo_ttl = 5;
264 ctx->cfg.cache_root = CGIT_CACHE_ROOT;
265 ctx->cfg.cache_root_ttl = 5;
266 ctx->cfg.cache_scanrc_ttl = 15;
267 ctx->cfg.cache_static_ttl = -1;
268 ctx->cfg.css = "/cgit.css";
269 ctx->cfg.logo = "/cgit.png";
270 ctx->cfg.local_time = 0;
271 ctx->cfg.enable_tree_linenumbers = 1;
272 ctx->cfg.max_repo_count = 50;
273 ctx->cfg.max_commit_count = 50;
274 ctx->cfg.max_lock_attempts = 5;
275 ctx->cfg.max_msg_len = 80;
276 ctx->cfg.max_repodesc_len = 80;
277 ctx->cfg.max_stats = 0;
278 ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
279 ctx->cfg.renamelimit = -1;
280 ctx->cfg.robots = "index, nofollow";
281 ctx->cfg.root_title = "Git repository browser";
282 ctx->cfg.root_desc = "a fast webinterface for the git dscm";
283 ctx->cfg.script_name = CGIT_SCRIPT_NAME;
284 ctx->cfg.section = "";
285 ctx->cfg.summary_branches = 10;
286 ctx->cfg.summary_log = 10;
287 ctx->cfg.summary_tags = 10;
288 ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
289 ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
290 ctx->env.https = xstrdupn(getenv("HTTPS"));
291 ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
292 ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
293 ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
294 ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
295 ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
296 ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
297 ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
298 ctx->page.mimetype = "text/html";
299 ctx->page.charset = PAGE_ENCODING;
300 ctx->page.filename = NULL;
301 ctx->page.size = 0;
302 ctx->page.modified = time(NULL);
303 ctx->page.expires = ctx->page.modified;
304 ctx->page.etag = NULL;
305 memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
306 if (ctx->env.script_name)
307 ctx->cfg.script_name = ctx->env.script_name;
308 if (ctx->env.query_string)
309 ctx->qry.raw = ctx->env.query_string;
310 if (!ctx->env.cgit_config)
311 ctx->env.cgit_config = CGIT_CONFIG;
312}
313
314struct refmatch {
315 char *req_ref;
316 char *first_ref;
317 int match;
318};
319
320int find_current_ref(const char *refname, const unsigned char *sha1,
321 int flags, void *cb_data)
322{
323 struct refmatch *info;
324
325 info = (struct refmatch *)cb_data;
326 if (!strcmp(refname, info->req_ref))
327 info->match = 1;
328 if (!info->first_ref)
329 info->first_ref = xstrdup(refname);
330 return info->match;
331}
332
333char *find_default_branch(struct cgit_repo *repo)
334{
335 struct refmatch info;
336 char *ref;
337
338 info.req_ref = repo->defbranch;
339 info.first_ref = NULL;
340 info.match = 0;
341 for_each_branch_ref(find_current_ref, &info);
342 if (info.match)
343 ref = info.req_ref;
344 else
345 ref = info.first_ref;
346 if (ref)
347 ref = xstrdup(ref);
348 return ref;
349}
350
351static int prepare_repo_cmd(struct cgit_context *ctx)
352{
353 char *tmp;
354 unsigned char sha1[20];
355 int nongit = 0;
356
357 setenv("GIT_DIR", ctx->repo->path, 1);
358 setup_git_directory_gently(&nongit);
359 if (nongit) {
360 ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
361 "config error");
362 tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
363 ctx->repo = NULL;
364 cgit_print_http_headers(ctx);
365 cgit_print_docstart(ctx);
366 cgit_print_pageheader(ctx);
367 cgit_print_error(tmp);
368 cgit_print_docend();
369 return 1;
370 }
371 ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
372
373 if (!ctx->qry.head) {
374 ctx->qry.nohead = 1;
375 ctx->qry.head = find_default_branch(ctx->repo);
376 ctx->repo->defbranch = ctx->qry.head;
377 }
378
379 if (!ctx->qry.head) {
380 cgit_print_http_headers(ctx);
381 cgit_print_docstart(ctx);
382 cgit_print_pageheader(ctx);
383 cgit_print_error("Repository seems to be empty");
384 cgit_print_docend();
385 return 1;
386 }
387
388 if (get_sha1(ctx->qry.head, sha1)) {
389 tmp = xstrdup(ctx->qry.head);
390 ctx->qry.head = ctx->repo->defbranch;
391 ctx->page.status = 404;
392 ctx->page.statusmsg = "not found";
393 cgit_print_http_headers(ctx);
394 cgit_print_docstart(ctx);
395 cgit_print_pageheader(ctx);
396 cgit_print_error(fmt("Invalid branch: %s", tmp));
397 cgit_print_docend();
398 return 1;
399 }
400 return 0;
401}
402
403static void process_request(void *cbdata)
404{
405 struct cgit_context *ctx = cbdata;
406 struct cgit_cmd *cmd;
407
408 cmd = cgit_get_cmd(ctx);
409 if (!cmd) {
410 ctx->page.title = "cgit error";
411 cgit_print_http_headers(ctx);
412 cgit_print_docstart(ctx);
413 cgit_print_pageheader(ctx);
414 cgit_print_error("Invalid request");
415 cgit_print_docend();
416 return;
417 }
418
419 if (cmd->want_repo && !ctx->repo) {
420 cgit_print_http_headers(ctx);
421 cgit_print_docstart(ctx);
422 cgit_print_pageheader(ctx);
423 cgit_print_error(fmt("No repository selected"));
424 cgit_print_docend();
425 return;
426 }
427
428 if (ctx->repo && prepare_repo_cmd(ctx))
429 return;
430
431 if (cmd->want_layout) {
432 cgit_print_http_headers(ctx);
433 cgit_print_docstart(ctx);
434 cgit_print_pageheader(ctx);
435 }
436
437 cmd->fn(ctx);
438
439 if (cmd->want_layout)
440 cgit_print_docend();
441}
442
443int cmp_repos(const void *a, const void *b)
444{
445 const struct cgit_repo *ra = a, *rb = b;
446 return strcmp(ra->url, rb->url);
447}
448
449char *build_snapshot_setting(int bitmap)
450{
451 const struct cgit_snapshot_format *f;
452 char *result = xstrdup("");
453 char *tmp;
454 int len;
455
456 for (f = cgit_snapshot_formats; f->suffix; f++) {
457 if (f->bit & bitmap) {
458 tmp = result;
459 result = xstrdup(fmt("%s%s ", tmp, f->suffix));
460 free(tmp);
461 }
462 }
463 len = strlen(result);
464 if (len)
465 result[len - 1] = '\0';
466 return result;
467}
468
469char *get_first_line(char *txt)
470{
471 char *t = xstrdup(txt);
472 char *p = strchr(t, '\n');
473 if (p)
474 *p = '\0';
475 return t;
476}
477
478void print_repo(FILE *f, struct cgit_repo *repo)
479{
480 fprintf(f, "repo.url=%s\n", repo->url);
481 fprintf(f, "repo.name=%s\n", repo->name);
482 fprintf(f, "repo.path=%s\n", repo->path);
483 if (repo->owner)
484 fprintf(f, "repo.owner=%s\n", repo->owner);
485 if (repo->desc) {
486 char *tmp = get_first_line(repo->desc);
487 fprintf(f, "repo.desc=%s\n", tmp);
488 free(tmp);
489 }
490 if (repo->readme)
491 fprintf(f, "repo.readme=%s\n", repo->readme);
492 if (repo->defbranch)
493 fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
494 if (repo->module_link)
495 fprintf(f, "repo.module-link=%s\n", repo->module_link);
496 if (repo->section)
497 fprintf(f, "repo.section=%s\n", repo->section);
498 if (repo->clone_url)
499 fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
500 fprintf(f, "repo.enable-log-filecount=%d\n",
501 repo->enable_log_filecount);
502 fprintf(f, "repo.enable-log-linecount=%d\n",
503 repo->enable_log_linecount);
504 if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
505 fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
506 if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
507 fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
508 if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
509 fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
510 if (repo->snapshots != ctx.cfg.snapshots) {
511 char *tmp = build_snapshot_setting(repo->snapshots);
512 fprintf(f, "repo.snapshots=%s\n", tmp);
513 free(tmp);
514 }
515 if (repo->max_stats != ctx.cfg.max_stats)
516 fprintf(f, "repo.max-stats=%s\n",
517 cgit_find_stats_periodname(repo->max_stats));
518 fprintf(f, "\n");
519}
520
521void print_repolist(FILE *f, struct cgit_repolist *list, int start)
522{
523 int i;
524
525 for(i = start; i < list->count; i++)
526 print_repo(f, &list->repos[i]);
527}
528
529/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
530 * and return 0 on success.
531 */
532static int generate_cached_repolist(const char *path, const char *cached_rc)
533{
534 char *locked_rc;
535 int idx;
536 FILE *f;
537
538 locked_rc = xstrdup(fmt("%s.lock", cached_rc));
539 f = fopen(locked_rc, "wx");
540 if (!f) {
541 /* Inform about the error unless the lockfile already existed,
542 * since that only means we've got concurrent requests.
543 */
544 if (errno != EEXIST)
545 fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
546 locked_rc, strerror(errno), errno);
547 return errno;
548 }
549 idx = cgit_repolist.count;
550 scan_tree(path, repo_config);
551 print_repolist(f, &cgit_repolist, idx);
552 if (rename(locked_rc, cached_rc))
553 fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
554 locked_rc, cached_rc, strerror(errno), errno);
555 fclose(f);
556 return 0;
557}
558
559static void process_cached_repolist(const char *path)
560{
561 struct stat st;
562 char *cached_rc;
563 time_t age;
564
565 cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
566 hash_str(path)));
567
568 if (stat(cached_rc, &st)) {
569 /* Nothing is cached, we need to scan without forking. And
570 * if we fail to generate a cached repolist, we need to
571 * invoke scan_tree manually.
572 */
573 if (generate_cached_repolist(path, cached_rc))
574 scan_tree(path, repo_config);
575 return;
576 }
577
578 parse_configfile(cached_rc, config_cb);
579
580 /* If the cached configfile hasn't expired, lets exit now */
581 age = time(NULL) - st.st_mtime;
582 if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
583 return;
584
585 /* The cached repolist has been parsed, but it was old. So lets
586 * rescan the specified path and generate a new cached repolist
587 * in a child-process to avoid latency for the current request.
588 */
589 if (fork())
590 return;
591
592 exit(generate_cached_repolist(path, cached_rc));
593}
594
595static void cgit_parse_args(int argc, const char **argv)
596{
597 int i;
598 int scan = 0;
599
600 for (i = 1; i < argc; i++) {
601 if (!strncmp(argv[i], "--cache=", 8)) {
602 ctx.cfg.cache_root = xstrdup(argv[i]+8);
603 }
604 if (!strcmp(argv[i], "--nocache")) {
605 ctx.cfg.nocache = 1;
606 }
607 if (!strcmp(argv[i], "--nohttp")) {
608 ctx.env.no_http = "1";
609 }
610 if (!strncmp(argv[i], "--query=", 8)) {
611 ctx.qry.raw = xstrdup(argv[i]+8);
612 }
613 if (!strncmp(argv[i], "--repo=", 7)) {
614 ctx.qry.repo = xstrdup(argv[i]+7);
615 }
616 if (!strncmp(argv[i], "--page=", 7)) {
617 ctx.qry.page = xstrdup(argv[i]+7);
618 }
619 if (!strncmp(argv[i], "--head=", 7)) {
620 ctx.qry.head = xstrdup(argv[i]+7);
621 ctx.qry.has_symref = 1;
622 }
623 if (!strncmp(argv[i], "--sha1=", 7)) {
624 ctx.qry.sha1 = xstrdup(argv[i]+7);
625 ctx.qry.has_sha1 = 1;
626 }
627 if (!strncmp(argv[i], "--ofs=", 6)) {
628 ctx.qry.ofs = atoi(argv[i]+6);
629 }
630 if (!strncmp(argv[i], "--scan-tree=", 12) ||
631 !strncmp(argv[i], "--scan-path=", 12)) {
632 /* HACK: the global snapshot bitmask defines the
633 * set of allowed snapshot formats, but the config
634 * file hasn't been parsed yet so the mask is
635 * currently 0. By setting all bits high before
636 * scanning we make sure that any in-repo cgitrc
637 * snapshot setting is respected by scan_tree().
638 * BTW: we assume that there'll never be more than
639 * 255 different snapshot formats supported by cgit...
640 */
641 ctx.cfg.snapshots = 0xFF;
642 scan++;
643 scan_tree(argv[i] + 12, repo_config);
644 }
645 }
646 if (scan) {
647 qsort(cgit_repolist.repos, cgit_repolist.count,
648 sizeof(struct cgit_repo), cmp_repos);
649 print_repolist(stdout, &cgit_repolist, 0);
650 exit(0);
651 }
652}
653
654static int calc_ttl()
655{
656 if (!ctx.repo)
657 return ctx.cfg.cache_root_ttl;
658
659 if (!ctx.qry.page)
660 return ctx.cfg.cache_repo_ttl;
661
662 if (ctx.qry.has_symref)
663 return ctx.cfg.cache_dynamic_ttl;
664
665 if (ctx.qry.has_sha1)
666 return ctx.cfg.cache_static_ttl;
667
668 return ctx.cfg.cache_repo_ttl;
669}
670
671int main(int argc, const char **argv)
672{
673 const char *path;
674 char *qry;
675 int err, ttl;
676
677 prepare_context(&ctx);
678 cgit_repolist.length = 0;
679 cgit_repolist.count = 0;
680 cgit_repolist.repos = NULL;
681
682 cgit_parse_args(argc, argv);
683 parse_configfile(ctx.env.cgit_config, config_cb);
684 ctx.repo = NULL;
685 http_parse_querystring(ctx.qry.raw, querystring_cb);
686
687 /* If virtual-root isn't specified in cgitrc, lets pretend
688 * that virtual-root equals SCRIPT_NAME.
689 */
690 if (!ctx.cfg.virtual_root)
691 ctx.cfg.virtual_root = ctx.cfg.script_name;
692
693 /* If no url parameter is specified on the querystring, lets
694 * use PATH_INFO as url. This allows cgit to work with virtual
695 * urls without the need for rewriterules in the webserver (as
696 * long as PATH_INFO is included in the cache lookup key).
697 */
698 path = ctx.env.path_info;
699 if (!ctx.qry.url && path) {
700 if (path[0] == '/')
701 path++;
702 ctx.qry.url = xstrdup(path);
703 if (ctx.qry.raw) {
704 qry = ctx.qry.raw;
705 ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
706 free(qry);
707 } else
708 ctx.qry.raw = xstrdup(ctx.qry.url);
709 cgit_parse_url(ctx.qry.url);
710 }
711
712 ttl = calc_ttl();
713 ctx.page.expires += ttl*60;
714 if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
715 ctx.cfg.nocache = 1;
716 if (ctx.cfg.nocache)
717 ctx.cfg.cache_size = 0;
718 err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
719 ctx.qry.raw, ttl, process_request, &ctx);
720 if (err)
721 cgit_print_error(fmt("Error processing page: %s (%d)",
722 strerror(err), err));
723 return err;
724}