2 ashd - A Sane HTTP Daemon
3 Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
37 static struct config *cflist;
38 struct config *gconfig, *lconfig;
40 static void freerule(struct rule *rule)
42 freeca(rule->patterns);
46 static void freepattern(struct pattern *pat)
51 for(rule = pat->rules; *rule; rule++)
53 while((head = pat->headers) != NULL) {
54 pat->headers = head->next;
59 if(pat->childnm != NULL)
65 static void freeconfig(struct config *cf)
67 struct child *ch, *nch;
68 struct pattern *pat, *npat;
71 cf->prev->next = cf->next;
73 cf->next->prev = cf->prev;
78 for(ch = cf->children; ch != NULL; ch = nch) {
82 for(pat = cf->patterns; pat != NULL; pat = npat) {
87 if(cf->capture != NULL)
89 if(cf->reparse != NULL)
94 struct child *getchild(struct config *cf, char *name)
98 for(ch = cf->children; ch; ch = ch->next) {
99 if(!strcmp(ch->name, name))
105 static struct rule *newrule(struct pattern *pat)
110 for(i = 0; pat->rules[i]; i++);
111 pat->rules = srealloc(pat->rules, sizeof(*pat->rules) * (i + 2));
112 rule = pat->rules[i] = szmalloc(sizeof(*rule));
113 pat->rules[i + 1] = NULL;
117 static struct pattern *newpattern(void)
122 pat->rules = szmalloc(sizeof(*pat->rules));
126 static char **cadup(char **w)
132 ret = smalloc(sizeof(*ret) * (l + 1));
133 for(i = 0; i < l; i++)
134 ret[i] = sstrdup(w[i]);
139 static struct pattern *parsepattern(struct cfstate *s)
143 struct headmod *head;
146 if(!strcmp(s->argv[0], "match")) {
153 if((s->argc > 1) && !strcmp(s->argv[1], "directory"))
155 else if((s->argc > 1) && !strcmp(s->argv[1], "notfound"))
156 pat->type = PT_NOTFOUND;
162 if(!strcmp(s->argv[0], "filename")) {
164 flog(LOG_WARNING, "%s:%i: missing pattern for `filename' match", s->file, s->lno);
168 rule->type = PAT_BASENAME;
169 rule->patterns = cadup(s->argv + 1);
170 } else if(!strcmp(s->argv[0], "pathname")) {
172 flog(LOG_WARNING, "%s:%i: missing pattern for `pathname' match", s->file, s->lno);
176 rule->type = PAT_PATHNAME;
177 rule->patterns = cadup(s->argv + 1);
178 } else if(!strcmp(s->argv[0], "all")) {
179 newrule(pat)->type = PAT_ALL;
180 } else if(!strcmp(s->argv[0], "default")) {
181 newrule(pat)->type = PAT_DEFAULT;
182 } else if(!strcmp(s->argv[0], "local")) {
183 newrule(pat)->type = PAT_LOCAL;
184 } else if(!strcmp(s->argv[0], "handler")) {
186 flog(LOG_WARNING, "%s:%i: missing child name for `handler' directive", s->file, s->lno);
189 if(pat->childnm != NULL)
191 pat->childnm = sstrdup(s->argv[1]);
192 } else if(!strcmp(s->argv[0], "fork")) {
193 pat->fchild = cadup(s->argv + 1);
194 } else if(!strcmp(s->argv[0], "set") || !strcmp(s->argv[0], "xset")) {
196 flog(LOG_WARNING, "%s:%i: missing header name or pattern for `%s' directive", s->file, s->lno, s->argv[0]);
200 if(!strcmp(s->argv[0], "xset"))
201 head->name = sprintf2("X-Ash-%s", s->argv[1]);
203 head->name = sstrdup(s->argv[1]);
204 head->value = sstrdup(s->argv[2]);
205 head->next = pat->headers;
207 } else if(!strcmp(s->argv[0], "end") || !strcmp(s->argv[0], "eof")) {
210 flog(LOG_WARNING, "%s:%i: unknown directive `%s' in pattern declaration", s->file, s->lno, s->argv[0]);
214 if(pat->rules[0] == NULL) {
215 flog(LOG_WARNING, "%s:%i: missing rules in match declaration", s->file, sl);
219 if((pat->childnm == NULL) && (pat->fchild == NULL)) {
220 flog(LOG_WARNING, "%s:%i: missing handler in match declaration", s->file, sl);
227 static struct config *emptyconfig(void)
235 struct config *readconfig(char *file)
243 if((in = fopen(file, "r")) == NULL) {
244 flog(LOG_WARNING, "%s: %s", file, strerror(errno));
247 s = mkcfparser(in, file);
252 if((child = parsechild(s)) != NULL) {
253 child->next = cf->children;
254 cf->children = child;
255 } else if((pat = parsepattern(s)) != NULL) {
256 pat->next = cf->patterns;
258 } else if(!strcmp(s->argv[0], "index-file")) {
260 cf->index = cadup(s->argv + 1);
261 } else if(!strcmp(s->argv[0], "capture")) {
263 flog(LOG_WARNING, "%s:%i: missing argument to capture declaration", s->file, s->lno);
266 if(cf->capture != NULL)
268 cf->capture = sstrdup(s->argv[1]);
270 if((s->argc > 2) && strchr(s->argv[2], 'D'))
272 } else if(!strcmp(s->argv[0], "reparse")) {
274 flog(LOG_WARNING, "%s:%i: missing argument to reparse declaration", s->file, s->lno);
277 if(cf->reparse != NULL)
279 cf->reparse = sstrdup(s->argv[1]);
281 if((s->argc > 2) && strchr(s->argv[2], 'c'))
283 } else if(!strcmp(s->argv[0], "eof")) {
286 flog(LOG_WARNING, "%s:%i: unknown directive `%s'", s->file, s->lno, s->argv[0]);
295 struct config *getconfig(char *path)
297 struct config *cf, *ocf;
302 fn = sprintf3("%s/.htrc", path);
303 for(cf = cflist; cf != NULL; cf = cf->next) {
304 if(!strcmp(cf->path, path)) {
305 if(now - cf->lastck > 5) {
307 if(stat(fn, &sb) || (sb.st_mtime != cf->mtime))
314 if(access(fn, R_OK) || stat(fn, &sb)) {
318 if((cf = readconfig(fn)) == NULL)
323 mergechildren(cf->children, ocf->children);
326 cf->path = sstrdup(path);
337 struct config **getconfigs(char *file)
339 static struct config **ret = NULL;
350 if(!strncmp(file, "./", 2))
354 if((p = strrchr(tmp, '/')) == NULL)
357 if((cf = getconfig(tmp)) != NULL)
361 if((cf = getconfig(".")) != NULL)
364 bufadd(buf, lconfig);
366 bufadd(buf, gconfig);
371 struct child *findchild(char *file, char *name, struct config **cf)
379 cfs = getconfigs(file);
380 for(i = 0; cfs[i] != NULL; i++) {
381 if((ch = getchild(cfs[i], name)) != NULL) {
387 if(!strcmp(name, ".notfound"))
392 struct pattern *findmatch(char *file, int trydefault, int type)
401 if((bn = strrchr(file, '/')) != NULL)
405 cfs = getconfigs(file);
406 for(c = 0; cfs[c] != NULL; c++) {
407 if(cfs[c]->path == NULL) {
410 pl = strlen(cfs[c]->path);
411 if((strlen(file) > pl) && !strncmp(file, cfs[c]->path, pl) && (file[pl] == '/'))
414 ln = file; /* This should only happen in the base directory. */
416 for(pat = cfs[c]->patterns; pat != NULL; pat = pat->next) {
417 if(pat->type != type)
419 for(i = 0; (rule = pat->rules[i]) != NULL; i++) {
420 if(rule->type == PAT_BASENAME) {
421 for(o = 0; rule->patterns[o] != NULL; o++) {
422 if(!fnmatch(rule->patterns[o], bn, 0))
425 if(rule->patterns[o] == NULL)
427 } else if(rule->type == PAT_PATHNAME) {
428 for(o = 0; rule->patterns[o] != NULL; o++) {
429 if(!fnmatch(rule->patterns[o], ln, FNM_PATHNAME))
432 if(rule->patterns[o] == NULL)
434 } else if(rule->type == PAT_ALL) {
435 } else if(rule->type == PAT_DEFAULT) {
438 } else if(rule->type == PAT_LOCAL) {
448 return(findmatch(file, 1, type));
452 static int donotfound(struct child *ch, struct hthead *req, int fd, void (*chinit)(void *), void *idata)
454 simpleerror(fd, 404, "Not Found", "The requested URL has no corresponding resource.");
458 static struct chandler i_notfound = {
459 .handle = donotfound,
462 static struct child s_notfound = {
464 .iface = &i_notfound,
466 struct child *notfound = &s_notfound;