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