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 repo->readme = xstrdup(value);
72 else
73 repo->readme = xstrdup(fmt("%s/%s", 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-blob-size"))
169 ctx.cfg.max_blob_size = atoi(value);
170 else if (!strcmp(name, "max-repo-count"))
171 ctx.cfg.max_repo_count = atoi(value);
172 else if (!strcmp(name, "max-commit-count"))
173 ctx.cfg.max_commit_count = atoi(value);
174 else if (!strcmp(name, "scan-path"))
175 if (!ctx.cfg.nocache && ctx.cfg.cache_size)
176 process_cached_repolist(value);
177 else
178 scan_tree(value, repo_config);
179 else if (!strcmp(name, "source-filter"))
180 ctx.cfg.source_filter = new_filter(value, 1);
181 else if (!strcmp(name, "summary-log"))
182 ctx.cfg.summary_log = atoi(value);
183 else if (!strcmp(name, "summary-branches"))
184 ctx.cfg.summary_branches = atoi(value);
185 else if (!strcmp(name, "summary-tags"))
186 ctx.cfg.summary_tags = atoi(value);
187 else if (!strcmp(name, "side-by-side-diffs"))
188 ctx.cfg.ssdiff = 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 } else if (!strcmp(name, "ss")) {
248 ctx.qry.ssdiff = atoi(value);
249 }
250}
251
252char *xstrdupn(const char *str)
253{
254 return (str ? xstrdup(str) : NULL);
255}
256
257static void prepare_context(struct cgit_context *ctx)
258{
259 memset(ctx, 0, sizeof(ctx));
260 ctx->cfg.agefile = "info/web/last-modified";
261 ctx->cfg.nocache = 0;
262 ctx->cfg.cache_size = 0;
263 ctx->cfg.cache_dynamic_ttl = 5;
264 ctx->cfg.cache_max_create_time = 5;
265 ctx->cfg.cache_repo_ttl = 5;
266 ctx->cfg.cache_root = CGIT_CACHE_ROOT;
267 ctx->cfg.cache_root_ttl = 5;
268 ctx->cfg.cache_scanrc_ttl = 15;
269 ctx->cfg.cache_static_ttl = -1;
270 ctx->cfg.css = "/cgit.css";
271 ctx->cfg.logo = "/cgit.png";
272 ctx->cfg.local_time = 0;
273 ctx->cfg.enable_tree_linenumbers = 1;
274 ctx->cfg.max_repo_count = 50;
275 ctx->cfg.max_commit_count = 50;
276 ctx->cfg.max_lock_attempts = 5;
277 ctx->cfg.max_msg_len = 80;
278 ctx->cfg.max_repodesc_len = 80;
279 ctx->cfg.max_blob_size = 0;
280 ctx->cfg.max_stats = 0;
281 ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
282 ctx->cfg.renamelimit = -1;
283 ctx->cfg.robots = "index, nofollow";
284 ctx->cfg.root_title = "Git repository browser";
285 ctx->cfg.root_desc = "a fast webinterface for the git dscm";
286 ctx->cfg.script_name = CGIT_SCRIPT_NAME;
287 ctx->cfg.section = "";
288 ctx->cfg.summary_branches = 10;
289 ctx->cfg.summary_log = 10;
290 ctx->cfg.summary_tags = 10;
291 ctx->cfg.ssdiff = 0;
292 ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
293 ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
294 ctx->env.https = xstrdupn(getenv("HTTPS"));
295 ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
296 ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
297 ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
298 ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
299 ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
300 ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
301 ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
302 ctx->page.mimetype = "text/html";
303 ctx->page.charset = PAGE_ENCODING;
304 ctx->page.filename = NULL;
305 ctx->page.size = 0;
306 ctx->page.modified = time(NULL);
307 ctx->page.expires = ctx->page.modified;
308 ctx->page.etag = NULL;
309 memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
310 if (ctx->env.script_name)
311 ctx->cfg.script_name = ctx->env.script_name;
312 if (ctx->env.query_string)
313 ctx->qry.raw = ctx->env.query_string;
314 if (!ctx->env.cgit_config)
315 ctx->env.cgit_config = CGIT_CONFIG;
316}
317
318struct refmatch {
319 char *req_ref;
320 char *first_ref;
321 int match;
322};
323
324int find_current_ref(const char *refname, const unsigned char *sha1,
325 int flags, void *cb_data)
326{
327 struct refmatch *info;
328
329 info = (struct refmatch *)cb_data;
330 if (!strcmp(refname, info->req_ref))
331 info->match = 1;
332 if (!info->first_ref)
333 info->first_ref = xstrdup(refname);
334 return info->match;
335}
336
337char *find_default_branch(struct cgit_repo *repo)
338{
339 struct refmatch info;
340 char *ref;
341
342 info.req_ref = repo->defbranch;
343 info.first_ref = NULL;
344 info.match = 0;
345 for_each_branch_ref(find_current_ref, &info);
346 if (info.match)
347 ref = info.req_ref;
348 else
349 ref = info.first_ref;
350 if (ref)
351 ref = xstrdup(ref);
352 return ref;
353}
354
355static int prepare_repo_cmd(struct cgit_context *ctx)
356{
357 char *tmp;
358 unsigned char sha1[20];
359 int nongit = 0;
360
361 setenv("GIT_DIR", ctx->repo->path, 1);
362 setup_git_directory_gently(&nongit);
363 if (nongit) {
364 ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
365 "config error");
366 tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
367 ctx->repo = NULL;
368 cgit_print_http_headers(ctx);
369 cgit_print_docstart(ctx);
370 cgit_print_pageheader(ctx);
371 cgit_print_error(tmp);
372 cgit_print_docend();
373 return 1;
374 }
375 ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
376
377 if (!ctx->qry.head) {
378 ctx->qry.nohead = 1;
379 ctx->qry.head = find_default_branch(ctx->repo);
380 ctx->repo->defbranch = ctx->qry.head;
381 }
382
383 if (!ctx->qry.head) {
384 cgit_print_http_headers(ctx);
385 cgit_print_docstart(ctx);
386 cgit_print_pageheader(ctx);
387 cgit_print_error("Repository seems to be empty");
388 cgit_print_docend();
389 return 1;
390 }
391
392 if (get_sha1(ctx->qry.head, sha1)) {
393 tmp = xstrdup(ctx->qry.head);
394 ctx->qry.head = ctx->repo->defbranch;
395 ctx->page.status = 404;
396 ctx->page.statusmsg = "not found";
397 cgit_print_http_headers(ctx);
398 cgit_print_docstart(ctx);
399 cgit_print_pageheader(ctx);
400 cgit_print_error(fmt("Invalid branch: %s", tmp));
401 cgit_print_docend();
402 return 1;
403 }
404 return 0;
405}
406
407static void process_request(void *cbdata)
408{
409 struct cgit_context *ctx = cbdata;
410 struct cgit_cmd *cmd;
411
412 cmd = cgit_get_cmd(ctx);
413 if (!cmd) {
414 ctx->page.title = "cgit error";
415 cgit_print_http_headers(ctx);
416 cgit_print_docstart(ctx);
417 cgit_print_pageheader(ctx);
418 cgit_print_error("Invalid request");
419 cgit_print_docend();
420 return;
421 }
422
423 if (cmd->want_repo && !ctx->repo) {
424 cgit_print_http_headers(ctx);
425 cgit_print_docstart(ctx);
426 cgit_print_pageheader(ctx);
427 cgit_print_error(fmt("No repository selected"));
428 cgit_print_docend();
429 return;
430 }
431
432 if (ctx->repo && prepare_repo_cmd(ctx))
433 return;
434
435 if (cmd->want_layout) {
436 cgit_print_http_headers(ctx);
437 cgit_print_docstart(ctx);
438 cgit_print_pageheader(ctx);
439 }
440
441 cmd->fn(ctx);
442
443 if (cmd->want_layout)
444 cgit_print_docend();
445}
446
447int cmp_repos(const void *a, const void *b)
448{
449 const struct cgit_repo *ra = a, *rb = b;
450 return strcmp(ra->url, rb->url);
451}
452
453char *build_snapshot_setting(int bitmap)
454{
455 const struct cgit_snapshot_format *f;
456 char *result = xstrdup("");
457 char *tmp;
458 int len;
459
460 for (f = cgit_snapshot_formats; f->suffix; f++) {
461 if (f->bit & bitmap) {
462 tmp = result;
463 result = xstrdup(fmt("%s%s ", tmp, f->suffix));
464 free(tmp);
465 }
466 }
467 len = strlen(result);
468 if (len)
469 result[len - 1] = '\0';
470 return result;
471}
472
473char *get_first_line(char *txt)
474{
475 char *t = xstrdup(txt);
476 char *p = strchr(t, '\n');
477 if (p)
478 *p = '\0';
479 return t;
480}
481
482void print_repo(FILE *f, struct cgit_repo *repo)
483{
484 fprintf(f, "repo.url=%s\n", repo->url);
485 fprintf(f, "repo.name=%s\n", repo->name);
486 fprintf(f, "repo.path=%s\n", repo->path);
487 if (repo->owner)
488 fprintf(f, "repo.owner=%s\n", repo->owner);
489 if (repo->desc) {
490 char *tmp = get_first_line(repo->desc);
491 fprintf(f, "repo.desc=%s\n", tmp);
492 free(tmp);
493 }
494 if (repo->readme)
495 fprintf(f, "repo.readme=%s\n", repo->readme);
496 if (repo->defbranch)
497 fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
498 if (repo->module_link)
499 fprintf(f, "repo.module-link=%s\n", repo->module_link);
500 if (repo->section)
501 fprintf(f, "repo.section=%s\n", repo->section);
502 if (repo->clone_url)
503 fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
504 fprintf(f, "repo.enable-log-filecount=%d\n",
505 repo->enable_log_filecount);
506 fprintf(f, "repo.enable-log-linecount=%d\n",
507 repo->enable_log_linecount);
508 if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
509 fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
510 if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
511 fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
512 if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
513 fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
514 if (repo->snapshots != ctx.cfg.snapshots) {
515 char *tmp = build_snapshot_setting(repo->snapshots);
516 fprintf(f, "repo.snapshots=%s\n", tmp);
517 free(tmp);
518 }
519 if (repo->max_stats != ctx.cfg.max_stats)
520 fprintf(f, "repo.max-stats=%s\n",
521 cgit_find_stats_periodname(repo->max_stats));
522 fprintf(f, "\n");
523}
524
525void print_repolist(FILE *f, struct cgit_repolist *list, int start)
526{
527 int i;
528
529 for(i = start; i < list->count; i++)
530 print_repo(f, &list->repos[i]);
531}
532
533/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
534 * and return 0 on success.
535 */
536static int generate_cached_repolist(const char *path, const char *cached_rc)
537{
538 char *locked_rc;
539 int idx;
540 FILE *f;
541
542 locked_rc = xstrdup(fmt("%s.lock", cached_rc));
543 f = fopen(locked_rc, "wx");
544 if (!f) {
545 /* Inform about the error unless the lockfile already existed,
546 * since that only means we've got concurrent requests.
547 */
548 if (errno != EEXIST)
549 fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
550 locked_rc, strerror(errno), errno);
551 return errno;
552 }
553 idx = cgit_repolist.count;
554 scan_tree(path, repo_config);
555 print_repolist(f, &cgit_repolist, idx);
556 if (rename(locked_rc, cached_rc))
557 fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
558 locked_rc, cached_rc, strerror(errno), errno);
559 fclose(f);
560 return 0;
561}
562
563static void process_cached_repolist(const char *path)
564{
565 struct stat st;
566 char *cached_rc;
567 time_t age;
568
569 cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
570 hash_str(path)));
571
572 if (stat(cached_rc, &st)) {
573 /* Nothing is cached, we need to scan without forking. And
574 * if we fail to generate a cached repolist, we need to
575 * invoke scan_tree manually.
576 */
577 if (generate_cached_repolist(path, cached_rc))
578 scan_tree(path, repo_config);
579 return;
580 }
581
582 parse_configfile(cached_rc, config_cb);
583
584 /* If the cached configfile hasn't expired, lets exit now */
585 age = time(NULL) - st.st_mtime;
586 if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
587 return;
588
589 /* The cached repolist has been parsed, but it was old. So lets
590 * rescan the specified path and generate a new cached repolist
591 * in a child-process to avoid latency for the current request.
592 */
593 if (fork())
594 return;
595
596 exit(generate_cached_repolist(path, cached_rc));
597}
598
599static void cgit_parse_args(int argc, const char **argv)
600{
601 int i;
602 int scan = 0;
603
604 for (i = 1; i < argc; i++) {
605 if (!strncmp(argv[i], "--cache=", 8)) {
606 ctx.cfg.cache_root = xstrdup(argv[i]+8);
607 }
608 if (!strcmp(argv[i], "--nocache")) {
609 ctx.cfg.nocache = 1;
610 }
611 if (!strcmp(argv[i], "--nohttp")) {
612 ctx.env.no_http = "1";
613 }
614 if (!strncmp(argv[i], "--query=", 8)) {
615 ctx.qry.raw = xstrdup(argv[i]+8);
616 }
617 if (!strncmp(argv[i], "--repo=", 7)) {
618 ctx.qry.repo = xstrdup(argv[i]+7);
619 }
620 if (!strncmp(argv[i], "--page=", 7)) {
621 ctx.qry.page = xstrdup(argv[i]+7);
622 }
623 if (!strncmp(argv[i], "--head=", 7)) {
624 ctx.qry.head = xstrdup(argv[i]+7);
625 ctx.qry.has_symref = 1;
626 }
627 if (!strncmp(argv[i], "--sha1=", 7)) {
628 ctx.qry.sha1 = xstrdup(argv[i]+7);
629 ctx.qry.has_sha1 = 1;
630 }
631 if (!strncmp(argv[i], "--ofs=", 6)) {
632 ctx.qry.ofs = atoi(argv[i]+6);
633 }
634 if (!strncmp(argv[i], "--scan-tree=", 12) ||
635 !strncmp(argv[i], "--scan-path=", 12)) {
636 /* HACK: the global snapshot bitmask defines the
637 * set of allowed snapshot formats, but the config
638 * file hasn't been parsed yet so the mask is
639 * currently 0. By setting all bits high before
640 * scanning we make sure that any in-repo cgitrc
641 * snapshot setting is respected by scan_tree().
642 * BTW: we assume that there'll never be more than
643 * 255 different snapshot formats supported by cgit...
644 */
645 ctx.cfg.snapshots = 0xFF;
646 scan++;
647 scan_tree(argv[i] + 12, repo_config);
648 }
649 }
650 if (scan) {
651 qsort(cgit_repolist.repos, cgit_repolist.count,
652 sizeof(struct cgit_repo), cmp_repos);
653 print_repolist(stdout, &cgit_repolist, 0);
654 exit(0);
655 }
656}
657
658static int calc_ttl()
659{
660 if (!ctx.repo)
661 return ctx.cfg.cache_root_ttl;
662
663 if (!ctx.qry.page)
664 return ctx.cfg.cache_repo_ttl;
665
666 if (ctx.qry.has_symref)
667 return ctx.cfg.cache_dynamic_ttl;
668
669 if (ctx.qry.has_sha1)
670 return ctx.cfg.cache_static_ttl;
671
672 return ctx.cfg.cache_repo_ttl;
673}
674
675int main(int argc, const char **argv)
676{
677 const char *path;
678 char *qry;
679 int err, ttl;
680
681 prepare_context(&ctx);
682 cgit_repolist.length = 0;
683 cgit_repolist.count = 0;
684 cgit_repolist.repos = NULL;
685
686 cgit_parse_args(argc, argv);
687 parse_configfile(ctx.env.cgit_config, config_cb);
688 ctx.repo = NULL;
689 http_parse_querystring(ctx.qry.raw, querystring_cb);
690
691 /* If virtual-root isn't specified in cgitrc, lets pretend
692 * that virtual-root equals SCRIPT_NAME.
693 */
694 if (!ctx.cfg.virtual_root)
695 ctx.cfg.virtual_root = ctx.cfg.script_name;
696
697 /* If no url parameter is specified on the querystring, lets
698 * use PATH_INFO as url. This allows cgit to work with virtual
699 * urls without the need for rewriterules in the webserver (as
700 * long as PATH_INFO is included in the cache lookup key).
701 */
702 path = ctx.env.path_info;
703 if (!ctx.qry.url && path) {
704 if (path[0] == '/')
705 path++;
706 ctx.qry.url = xstrdup(path);
707 if (ctx.qry.raw) {
708 qry = ctx.qry.raw;
709 ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
710 free(qry);
711 } else
712 ctx.qry.raw = xstrdup(ctx.qry.url);
713 cgit_parse_url(ctx.qry.url);
714 }
715
716 ttl = calc_ttl();
717 ctx.page.expires += ttl*60;
718 if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
719 ctx.cfg.nocache = 1;
720 if (ctx.cfg.nocache)
721 ctx.cfg.cache_size = 0;
722 err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
723 ctx.qry.raw, ttl, process_request, &ctx);
724 if (err)
725 cgit_print_error(fmt("Error processing page: %s (%d)",
726 strerror(err), err));
727 return err;
728}