config.c@ 187

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Last change on this file since 187 was 187, checked in by Nishi, on Sep 28, 2024 at 9:07:34 AM
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1	/* $Id: config.c 187 2024-09-28 00:07:34Z nishi $ */
2
3	#define SOURCE
4
5	#include "tw_config.h"
6	#include "tw_module.h"
7
8	#include <stdio.h>
9	#include <stdint.h>
10	#include <stdlib.h>
11	#include <string.h>
12	#include <unistd.h>
13
14	#ifdef __MINGW32__
15	#include <winsock2.h>
16	#endif
17
18	#include <cm_string.h>
19	#include <cm_log.h>
20
21	struct tw_config config;
22
23	struct tw_config_entry* tw_vhost_match(const char* name, int port) {
24	int i;
25	for(i = 0; i < config.vhost_count; i++) {
26	if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
27	return &config.vhosts[i];
28	}
29	}
30	return &config.root;
31	}
32
33	bool tw_permission_allowed(const char* path, SOCKADDR addr, struct tw_http_request req, struct tw_config_entry* vhost) {
34	int i;
35	bool found = false;
36	bool pathstart = false;
37	bool perm = false;
38	again:
39	for(i = 0; i < vhost->dir_count; i++) {
40	struct tw_dir_entry* e = &vhost->dirs[i];
41	pathstart = false;
42	if(strlen(path) >= strlen(e->dir)) {
43	pathstart = true;
44	int j;
45	for(j = 0; path[j] != 0 && e->dir[j] != 0; j++) {
46	if(path[j] != e->dir[j]) {
47	pathstart = false;
48	break;
49	}
50	}
51	}
52	char* noslash = cm_strdup(e->dir);
53	noslash[strlen(noslash) - 1] = 0;
54	if(strcmp(e->dir, path) == 0 \|\| strcmp(noslash, path) == 0 \|\| pathstart) {
55	found = true;
56	if(strcmp(e->name, "all") == 0) {
57	perm = e->type == TW_DIR_ALLOW;
58	}
59	}
60	free(noslash);
61	}
62	if(!found && vhost != &config.root) {
63	vhost = &config.root;
64	goto again;
65	}
66	return perm;
67	}
68
69	void tw_config_init(void) {
70	int i;
71	for(i = 0; i < MAX_PORTS + 1; i++) {
72	config.ports[i] = -1;
73	}
74	for(i = 0; i < MAX_VHOSTS; i++) {
75	#ifndef NO_SSL
76	config.vhosts[i].sslkey = NULL;
77	config.vhosts[i].sslcert = NULL;
78	#endif
79	config.vhosts[i].root = NULL;
80	#ifdef HAS_CHROOT
81	config.vhosts[i].chroot_path = NULL;
82	#endif
83	}
84	#ifndef NO_SSL
85	config.root.sslkey = NULL;
86	config.root.sslcert = NULL;
87	#endif
88	config.root.root = NULL;
89	config.root.mime_count = 0;
90	config.root.dir_count = 0;
91	config.root.icon_count = 0;
92	config.root.index_count = 0;
93	config.root.readme_count = 0;
94	config.root.hideport = 0;
95	#ifdef HAS_CHROOT
96	config.root.chroot_path = NULL;
97	#endif
98	config.vhost_count = 0;
99	config.module_count = 0;
100	config.extension = NULL;
101	config.server_root = cm_strdup(PREFIX);
102	config.server_admin = cm_strdup(SERVER_ADMIN);
103	config.defined[0] = NULL;
104	#if defined(_PSP)
105	strcpy(config.hostname, "psp");
106	#elif defined(__PPU__)
107	strcpy(config.hostname, "ps3");
108	#else
109	gethostname(config.hostname, 1024);
110	#endif
111	#ifdef HAS_CHROOT
112	tw_add_define("HAS_CHROOT");
113	#endif
114	#ifndef NO_SSL
115	tw_add_define("HAS_SSL");
116	#endif
117	}
118
119	int tw_config_read(const char* path) {
120	cm_log("Config", "Reading %s", path);
121	char cbuf[2];
122	cbuf[1] = 0;
123	int ln = 0;
124	int ifbr = 0;
125	int ignore = -1;
126	FILE* f = fopen(path, "r");
127	if(f != NULL) {
128	char* line = malloc(1);
129	line[0] = 0;
130	int stop = 0;
131	struct tw_config_entry* current = &config.root;
132	char* vhost = NULL;
133	char* dir = NULL;
134	while(stop == 0) {
135	int c = fread(cbuf, 1, 1, f);
136	if(cbuf[0] == '\n' \|\| c <= 0) {
137	ln++;
138	char* l = cm_trim(line);
139	if(strlen(l) > 0 && l[0] != '#') {
140	char** r = cm_split(l, " \t");
141	int i;
142	if(ignore != -1 && ifbr >= ignore) {
143	if(cm_strcaseequ(r[0], "EndIf")) ifbr--;
144	if(ifbr == 0) {
145	ignore = -1;
146	}
147	} else if(cm_strcaseequ(r[0], "Include") \|\| cm_strcaseequ(r[0], "IncludeOptional")) {
148	for(i = 1; r[i] != NULL; i++) {
149	if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
150	stop = 1;
151	break;
152	}
153	}
154	} else if(cm_strcaseequ(r[0], "Define")) {
155	if(r[1] == NULL) {
156	cm_log("Config", "Missing name at line %d", ln);
157	stop = 1;
158	} else {
159	tw_add_define(r[1]);
160	}
161	} else if(cm_strcaseequ(r[0], "Undefine")) {
162	if(r[1] == NULL) {
163	cm_log("Config", "Missing name at line %d", ln);
164	stop = 1;
165	} else {
166	tw_delete_define(r[1]);
167	}
168	} else if(cm_strcaseequ(r[0], "BeginDirectory")) {
169	if(dir != NULL) {
170	cm_log("Config", "Already in directory section at line %d", ln);
171	stop = 1;
172	} else {
173	if(r[1] == NULL) {
174	cm_log("Config", "Missing directory at line %d", ln);
175	stop = 1;
176	} else {
177	dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
178	}
179	}
180	} else if(cm_strcaseequ(r[0], "EndDirectory")) {
181	if(dir == NULL) {
182	cm_log("Config", "Not in directory section at line %d", ln);
183	stop = 1;
184	} else {
185	free(dir);
186	dir = NULL;
187	}
188	} else if(cm_strcaseequ(r[0], "Allow")) {
189	if(dir == NULL) {
190	cm_log("Config", "Not in directory section at line %d", ln);
191	stop = 1;
192	} else {
193	if(r[1] == NULL) {
194	cm_log("Config", "Missing argument at line %d", ln);
195	stop = 1;
196	} else {
197	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
198	e->name = cm_strdup(r[1]);
199	e->dir = cm_strdup(dir);
200	e->type = TW_DIR_ALLOW;
201	}
202	}
203	} else if(cm_strcaseequ(r[0], "Deny")) {
204	if(dir == NULL) {
205	cm_log("Config", "Not in directory section at line %d", ln);
206	stop = 1;
207	} else {
208	if(r[1] == NULL) {
209	cm_log("Config", "Missing argument at line %d", ln);
210	stop = 1;
211	} else {
212	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
213	e->name = cm_strdup(r[1]);
214	e->dir = cm_strdup(dir);
215	e->type = TW_DIR_DENY;
216	}
217	}
218	} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
219	if(vhost != NULL) {
220	cm_log("Config", "Already in virtual host section at line %d", ln);
221	stop = 1;
222	} else {
223	if(r[1] == NULL) {
224	cm_log("Config", "Missing virtual host at line %d", ln);
225	stop = 1;
226	} else {
227	vhost = cm_strdup(r[1]);
228	current = &config.vhosts[config.vhost_count++];
229	current->dir_count = 0;
230	current->mime_count = 0;
231	current->icon_count = 0;
232	current->index_count = 0;
233	current->readme_count = 0;
234	current->hideport = -1;
235	int i;
236	current->name = cm_strdup(vhost);
237	current->port = -1;
238	for(i = 0; vhost[i] != 0; i++) {
239	if(vhost[i] == ':') {
240	current->name[i] = 0;
241	current->port = atoi(current->name + i + 1);
242	break;
243	}
244	}
245	}
246	}
247	} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
248	if(vhost == NULL) {
249	cm_log("Config", "Not in virtual host section at line %d", ln);
250	stop = 1;
251	} else {
252	free(vhost);
253	vhost = NULL;
254	current = &config.root;
255	}
256	} else if(cm_strcaseequ(r[0], "Listen")
257	#ifndef NO_SSL
258	\|\| cm_strcaseequ(r[0], "ListenSSL")
259	#endif
260	) {
261	for(i = 1; r[i] != NULL; i++) {
262	uint64_t port = atoi(r[i]);
263	cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
264	if(cm_strcaseequ(r[0], "ListenSSL")) port \|= (1ULL << 32);
265	int j;
266	for(j = 0; config.ports[j] != -1; j++)
267	;
268	config.ports[j] = port;
269	}
270	} else if(cm_strcaseequ(r[0], "HidePort")) {
271	current->hideport = 1;
272	} else if(cm_strcaseequ(r[0], "ShowPort")) {
273	current->hideport = 0;
274	#ifndef NO_SSL
275	} else if(cm_strcaseequ(r[0], "SSLKey")) {
276	if(r[1] == NULL) {
277	cm_log("Config", "Missing path at line %d", ln);
278	stop = 1;
279	} else {
280	if(current->sslkey != NULL) free(current->sslkey);
281	current->sslkey = cm_strdup(r[1]);
282	}
283	} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
284	if(r[1] == NULL) {
285	cm_log("Config", "Missing path at line %d", ln);
286	stop = 1;
287	} else {
288	if(current->sslcert != NULL) free(current->sslcert);
289	current->sslcert = cm_strdup(r[1]);
290	}
291	#endif
292	#ifdef HAS_CHROOT
293	} else if(cm_strcaseequ(r[0], "ChrootDirectory")) {
294	if(r[1] == NULL) {
295	cm_log("Config", "Missing path at line %d", ln);
296	stop = 1;
297	} else {
298	if(current->chroot_path != NULL) free(current->chroot_path);
299	current->chroot_path = cm_strdup(r[1]);
300	}
301	#endif
302	} else if(cm_strcaseequ(r[0], "ForceLog")) {
303	if(r[1] == NULL) {
304	cm_log("Config", "Missing log at line %d", ln);
305	stop = 1;
306	} else {
307	cm_force_log(r[1]);
308	}
309	} else if(cm_strcaseequ(r[0], "EndIf")) {
310	if(ifbr == 0) {
311	cm_log("Config", "Missing BeginIf at line %d", ln);
312	stop = 1;
313	}
314	ifbr--;
315	} else if(cm_strcaseequ(r[0], "BeginIf") \|\| cm_strcaseequ(r[0], "BeginIfNot")) {
316	if(r[1] == NULL) {
317	cm_log("Config", "Missing condition type at line %d", ln);
318	} else {
319	ifbr++;
320	bool ign = false;
321	if(cm_strcaseequ(r[1], "False")) {
322	ign = true;
323	} else if(cm_strcaseequ(r[1], "True")) {
324	} else if(cm_strcaseequ(r[1], "Defined")) {
325	if(r[2] == NULL) {
326	cm_log("Config", "Missing name at line %d", ln);
327	stop = 1;
328	} else {
329	int i;
330	bool fndit = false;
331	for(i = 0; config.defined[i] != NULL; i++) {
332	if(strcmp(config.defined[i], r[2]) == 0) {
333	fndit = true;
334	break;
335	}
336	}
337	if(!fndit) {
338	ign = true;
339	}
340	}
341	} else {
342	cm_log("Config", "Unknown condition type at line %d", ln);
343	stop = 1;
344	}
345	if(cm_strcaseequ(r[0], "BeginIfNot")) ign = !ign;
346	if(ign) {
347	ignore = ifbr - 1;
348	}
349	}
350	} else if(cm_strcaseequ(r[0], "ServerRoot")) {
351	if(r[1] == NULL) {
352	cm_log("Config", "Missing path at line %d", ln);
353	stop = 1;
354	} else {
355	chdir(r[1]);
356	free(config.server_root);
357	config.server_root = cm_strdup(r[1]);
358	}
359	} else if(cm_strcaseequ(r[0], "ServerAdmin")) {
360	if(r[1] == NULL) {
361	cm_log("Config", "Missing email at line %d", ln);
362	stop = 1;
363	} else {
364	free(config.server_admin);
365	config.server_admin = cm_strdup(r[1]);
366	}
367	} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
368	if(r[1] == NULL) {
369	cm_log("Config", "Missing path at line %d", ln);
370	stop = 1;
371	} else {
372	if(current->root != NULL) free(current->root);
373	current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
374	}
375	} else if(cm_strcaseequ(r[0], "MIMEType")) {
376	if(r[1] == NULL) {
377	cm_log("Config", "Missing extension at line %d", ln);
378	stop = 1;
379	} else if(r[2] == NULL) {
380	cm_log("Config", "Missing MIME at line %d", ln);
381	stop = 1;
382	} else {
383	struct tw_mime_entry* e = &current->mimes[current->mime_count++];
384	e->ext = cm_strdup(r[1]);
385	e->mime = cm_strdup(r[2]);
386	}
387	} else if(cm_strcaseequ(r[0], "Icon")) {
388	if(r[1] == NULL) {
389	cm_log("Config", "Missing MIME at line %d", ln);
390	stop = 1;
391	} else if(r[2] == NULL) {
392	cm_log("Config", "Missing path at line %d", ln);
393	stop = 1;
394	} else {
395	struct tw_icon_entry* e = &current->icons[current->icon_count++];
396	e->mime = cm_strdup(r[1]);
397	e->icon = cm_strdup(r[2]);
398	}
399	} else if(cm_strcaseequ(r[0], "LoadModule")) {
400	for(i = 1; r[i] != NULL; i++) {
401	void* mod = tw_module_load(r[i]);
402	if(mod != NULL) {
403	config.modules[config.module_count++] = mod;
404	if(tw_module_init(mod) != 0) {
405	stop = 1;
406	break;
407	}
408	} else {
409	cm_log("Config", "Could not load the module at line %d", ln);
410	stop = 1;
411	break;
412	}
413	}
414	} else if(cm_strcaseequ(r[0], "DirectoryIndex")) {
415	for(i = 1; r[i] != NULL; i++) {
416	current->indexes[current->index_count++] = cm_strdup(r[i]);
417	}
418	} else if(cm_strcaseequ(r[0], "ReadmeFile") \|\| cm_strcaseequ(r[0], "Readme")) {
419	if(cm_strcaseequ(r[0], "Readme")) {
420	cm_force_log("NOTE: Readme directive is deprecated.");
421	}
422	for(i = 1; r[i] != NULL; i++) {
423	current->readmes[current->readme_count++] = cm_strdup(r[i]);
424	}
425	} else {
426	stop = 1;
427	if(r[0] != NULL) {
428	int argc;
429	for(argc = 0; r[argc] != NULL; argc++)
430	;
431	stop = 0;
432	int i;
433	bool called = false;
434	struct tw_tool tools;
435	tw_init_tools(&tools);
436	for(i = 0; i < config.module_count; i++) {
437	tw_mod_config_t mod_config = (tw_mod_config_t)tw_module_symbol(config.modules[i], "mod_config");
438	int resp;
439	if(mod_config != NULL && (resp = mod_config(&tools, r, argc)) == TW_CONFIG_PARSED) {
440	called = true;
441	break;
442	}
443	if(resp == TW_CONFIG_ERROR) {
444	stop = 1;
445	called = true;
446	break;
447	}
448	}
449	if(!called) {
450	cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
451	stop = 1;
452	}
453	}
454	}
455	for(i = 0; r[i] != NULL; i++) free(r[i]);
456	free(r);
457	}
458	free(l);
459	free(line);
460	line = malloc(1);
461	line[0] = 0;
462	if(c <= 0) break;
463	} else if(cbuf[0] != '\r') {
464	char* tmp = line;
465	line = cm_strcat(tmp, cbuf);
466	free(tmp);
467	}
468	}
469	free(line);
470	fclose(f);
471	return stop;
472	} else {
473	cm_log("Config", "Could not open the file");
474	return 1;
475	}
476	}

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source: Main/trunk/Server/config.c@ 187

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