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