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