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4 nishi 1 
/* $Id: config.c 212 2024-10-02 17:44:55Z nishi $ */
2 
 
16 nishi 3 
#define SOURCE
4 
 
4 nishi 5 
#include "tw_config.h"
17 nishi 6 
#include "tw_module.h"
4 nishi 7 
 
8 
#include <stdio.h>
7 nishi 9 
#include <stdint.h>
4 nishi 10 
#include <stdlib.h>
11 
#include <string.h>
212 nishi 12 
 
13 
#ifndef _MSC_VER
12 nishi 14 
#include <unistd.h>
212 nishi 15 
#endif
4 nishi 16 
 
212 nishi 17 
#if defined(__MINGW32__) || defined(_MSC_VER)
20 nishi 18 
#include <winsock2.h>
19 
#endif
20 
 
4 nishi 21 
#include <cm_string.h>
22 
#include <cm_log.h>
23 
 
6 nishi 24 
struct tw_config config;
25 
 
12 nishi 26 
struct tw_config_entry* tw_vhost_match(const char* name, int port) {
27 
	int i;
28 
	for(i = 0; i < config.vhost_count; i++) {
13 nishi 29 
		if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
12 nishi 30 
			return &config.vhosts[i];
31 
		}
32 
	}
33 
	return &config.root;
34 
}
35 
 
22 nishi 36 
bool tw_permission_allowed(const char* path, SOCKADDR addr, struct tw_http_request req, struct tw_config_entry* vhost) {
21 nishi 37 
	int i;
38 
	bool found = false;
39 
	bool pathstart = false;
40 
	bool perm = false;
41 
again:
22 nishi 42 
	for(i = 0; i < vhost->dir_count; i++) {
212 nishi 43 
		char* noslash;
21 nishi 44 
		struct tw_dir_entry* e = &vhost->dirs[i];
45 
		pathstart = false;
22 nishi 46 
		if(strlen(path) >= strlen(e->dir)) {
212 nishi 47 
			int j;
21 nishi 48 
			pathstart = true;
22 nishi 49 
			for(j = 0; path[j] != 0 && e->dir[j] != 0; j++) {
50 
				if(path[j] != e->dir[j]) {
21 nishi 51 
					pathstart = false;
52 
					break;
53 
				}
54 
			}
55 
		}
212 nishi 56 
		noslash = cm_strdup(e->dir);
21 nishi 57 
		noslash[strlen(noslash) - 1] = 0;
22 nishi 58 
		if(strcmp(e->dir, path) == 0 || strcmp(noslash, path) == 0 || pathstart) {
21 nishi 59 
			found = true;
22 nishi 60 
			if(strcmp(e->name, "all") == 0) {
21 nishi 61 
				perm = e->type == TW_DIR_ALLOW;
62 
			}
63 
		}
64 
		free(noslash);
65 
	}
22 nishi 66 
	if(!found && vhost != &config.root) {
21 nishi 67 
		vhost = &config.root;
68 
		goto again;
69 
	}
70 
	return perm;
71 
}
72 
 
7 nishi 73 
void tw_config_init(void) {
74 
	int i;
75 
	for(i = 0; i < MAX_PORTS + 1; i++) {
76 
		config.ports[i] = -1;
77 
	}
12 nishi 78 
	for(i = 0; i < MAX_VHOSTS; i++) {
156 nishi 79 
#ifndef NO_SSL
12 nishi 80 
		config.vhosts[i].sslkey = NULL;
81 
		config.vhosts[i].sslcert = NULL;
156 nishi 82 
#endif
19 nishi 83 
		config.vhosts[i].root = NULL;
156 nishi 84 
#ifdef HAS_CHROOT
85 
		config.vhosts[i].chroot_path = NULL;
86 
#endif
12 nishi 87 
	}
156 nishi 88 
#ifndef NO_SSL
12 nishi 89 
	config.root.sslkey = NULL;
90 
	config.root.sslcert = NULL;
156 nishi 91 
#endif
19 nishi 92 
	config.root.root = NULL;
21 nishi 93 
	config.root.mime_count = 0;
94 
	config.root.dir_count = 0;
22 nishi 95 
	config.root.icon_count = 0;
24 nishi 96 
	config.root.index_count = 0;
33 nishi 97 
	config.root.readme_count = 0;
123 nishi 98 
	config.root.hideport = 0;
156 nishi 99 
#ifdef HAS_CHROOT
100 
	config.root.chroot_path = NULL;
101 
#endif
12 nishi 102 
	config.vhost_count = 0;
18 nishi 103 
	config.module_count = 0;
104 
	config.extension = NULL;
17 nishi 105 
	config.server_root = cm_strdup(PREFIX);
128 nishi 106 
	config.server_admin = cm_strdup(SERVER_ADMIN);
156 nishi 107 
	config.defined[0] = NULL;
187 nishi 108 
#if defined(_PSP)
182 nishi 109 
	strcpy(config.hostname, "psp");
187 nishi 110 
#elif defined(__PPU__)
111 
	strcpy(config.hostname, "ps3");
189 nishi 112 
#elif defined(__ps2sdk__)
113 
	strcpy(config.hostname, "ps2");
182 nishi 114 
#else
12 nishi 115 
	gethostname(config.hostname, 1024);
182 nishi 116 
#endif
161 nishi 117 
#ifdef HAS_CHROOT
118 
	tw_add_define("HAS_CHROOT");
119 
#endif
174 nishi 120 
#ifndef NO_SSL
121 
	tw_add_define("HAS_SSL");
122 
#endif
7 nishi 123 
}
6 nishi 124 
 
125 
int tw_config_read(const char* path) {
4 nishi 126 
	char cbuf[2];
6 nishi 127 
	int ln = 0;
156 nishi 128 
	int ifbr = 0;
129 
	int ignore = -1;
212 nishi 130 
	FILE* f;
131 
	cm_log("Config", "Reading %s", path);
132 
	f = fopen(path, "r");
133 
	cbuf[1] = 0;
6 nishi 134 
	if(f != NULL) {
4 nishi 135 
		char* line = malloc(1);
6 nishi 136 
		int stop = 0;
12 nishi 137 
		struct tw_config_entry* current = &config.root;
6 nishi 138 
		char* vhost = NULL;
21 nishi 139 
		char* dir = NULL;
212 nishi 140 
		line[0] = 0;
6 nishi 141 
		while(stop == 0) {
4 nishi 142 
			int c = fread(cbuf, 1, 1, f);
6 nishi 143 
			if(cbuf[0] == '\n' || c <= 0) {
212 nishi 144 
				char* l = cm_trim(line);
6 nishi 145 
				ln++;
146 
				if(strlen(l) > 0 && l[0] != '#') {
5 nishi 147 
					char** r = cm_split(l, " \t");
148 
					int i;
156 nishi 149 
					if(ignore != -1 && ifbr >= ignore) {
150 
						if(cm_strcaseequ(r[0], "EndIf")) ifbr--;
151 
						if(ifbr == 0) {
152 
							ignore = -1;
153 
						}
154 
					} else if(cm_strcaseequ(r[0], "Include") || cm_strcaseequ(r[0], "IncludeOptional")) {
6 nishi 155 
						for(i = 1; r[i] != NULL; i++) {
156 
							if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
157 
								stop = 1;
158 
								break;
5 nishi 159 
							}
160 
						}
156 nishi 161 
					} else if(cm_strcaseequ(r[0], "Define")) {
162 
						if(r[1] == NULL) {
163 
							cm_log("Config", "Missing name at line %d", ln);
164 
							stop = 1;
165 
						} else {
166 
							tw_add_define(r[1]);
167 
						}
168 
					} else if(cm_strcaseequ(r[0], "Undefine")) {
169 
						if(r[1] == NULL) {
170 
							cm_log("Config", "Missing name at line %d", ln);
171 
							stop = 1;
172 
						} else {
173 
							tw_delete_define(r[1]);
174 
						}
21 nishi 175 
					} else if(cm_strcaseequ(r[0], "BeginDirectory")) {
176 
						if(dir != NULL) {
177 
							cm_log("Config", "Already in directory section at line %d", ln);
178 
							stop = 1;
179 
						} else {
180 
							if(r[1] == NULL) {
181 
								cm_log("Config", "Missing directory at line %d", ln);
182 
								stop = 1;
183 
							} else {
184 
								dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
185 
							}
186 
						}
187 
					} else if(cm_strcaseequ(r[0], "EndDirectory")) {
188 
						if(dir == NULL) {
189 
							cm_log("Config", "Not in directory section at line %d", ln);
190 
							stop = 1;
191 
						} else {
192 
							free(dir);
193 
							dir = NULL;
194 
						}
195 
					} else if(cm_strcaseequ(r[0], "Allow")) {
196 
						if(dir == NULL) {
197 
							cm_log("Config", "Not in directory section at line %d", ln);
198 
							stop = 1;
199 
						} else {
200 
							if(r[1] == NULL) {
201 
								cm_log("Config", "Missing argument at line %d", ln);
202 
								stop = 1;
203 
							} else {
204 
								struct tw_dir_entry* e = &current->dirs[current->dir_count++];
205 
								e->name = cm_strdup(r[1]);
206 
								e->dir = cm_strdup(dir);
207 
								e->type = TW_DIR_ALLOW;
208 
							}
209 
						}
210 
					} else if(cm_strcaseequ(r[0], "Deny")) {
211 
						if(dir == NULL) {
212 
							cm_log("Config", "Not in directory section at line %d", ln);
213 
							stop = 1;
214 
						} else {
215 
							if(r[1] == NULL) {
216 
								cm_log("Config", "Missing argument at line %d", ln);
217 
								stop = 1;
218 
							} else {
219 
								struct tw_dir_entry* e = &current->dirs[current->dir_count++];
220 
								e->name = cm_strdup(r[1]);
221 
								e->dir = cm_strdup(dir);
222 
								e->type = TW_DIR_DENY;
223 
							}
224 
						}
6 nishi 225 
					} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
226 
						if(vhost != NULL) {
12 nishi 227 
							cm_log("Config", "Already in virtual host section at line %d", ln);
6 nishi 228 
							stop = 1;
229 
						} else {
230 
							if(r[1] == NULL) {
12 nishi 231 
								cm_log("Config", "Missing virtual host at line %d", ln);
6 nishi 232 
								stop = 1;
233 
							} else {
212 nishi 234 
								int i;
6 nishi 235 
								vhost = cm_strdup(r[1]);
12 nishi 236 
								current = &config.vhosts[config.vhost_count++];
21 nishi 237 
								current->dir_count = 0;
238 
								current->mime_count = 0;
22 nishi 239 
								current->icon_count = 0;
24 nishi 240 
								current->index_count = 0;
33 nishi 241 
								current->readme_count = 0;
123 nishi 242 
								current->hideport = -1;
12 nishi 243 
								current->name = cm_strdup(vhost);
13 nishi 244 
								current->port = -1;
12 nishi 245 
								for(i = 0; vhost[i] != 0; i++) {
246 
									if(vhost[i] == ':') {
247 
										current->name[i] = 0;
248 
										current->port = atoi(current->name + i + 1);
249 
										break;
250 
									}
251 
								}
6 nishi 252 
							}
253 
						}
254 
					} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
255 
						if(vhost == NULL) {
12 nishi 256 
							cm_log("Config", "Not in virtual host section at line %d", ln);
6 nishi 257 
							stop = 1;
258 
						} else {
259 
							free(vhost);
260 
							vhost = NULL;
12 nishi 261 
							current = &config.root;
6 nishi 262 
						}
174 nishi 263 
					} else if(cm_strcaseequ(r[0], "Listen")
264 
#ifndef NO_SSL
265 
						  || cm_strcaseequ(r[0], "ListenSSL")
266 
#endif
267 
					) {
7 nishi 268 
						for(i = 1; r[i] != NULL; i++) {
212 nishi 269 
#ifdef _MSC_VER
270 
							uint32_t port = atoi(r[i]);
271 
#else
7 nishi 272 
							uint64_t port = atoi(r[i]);
212 nishi 273 
#endif
274 
							int j;
7 nishi 275 
							cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
212 nishi 276 
#ifdef _MSC_VER
277 
							if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1UL << 31);
278 
#else
279 
							if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1ULL << 31);
280 
#endif
7 nishi 281 
							for(j = 0; config.ports[j] != -1; j++)
282 
								;
283 
							config.ports[j] = port;
284 
						}
123 nishi 285 
					} else if(cm_strcaseequ(r[0], "HidePort")) {
286 
						current->hideport = 1;
287 
					} else if(cm_strcaseequ(r[0], "ShowPort")) {
288 
						current->hideport = 0;
156 nishi 289 
#ifndef NO_SSL
12 nishi 290 
					} else if(cm_strcaseequ(r[0], "SSLKey")) {
291 
						if(r[1] == NULL) {
292 
							cm_log("Config", "Missing path at line %d", ln);
293 
							stop = 1;
294 
						} else {
295 
							if(current->sslkey != NULL) free(current->sslkey);
296 
							current->sslkey = cm_strdup(r[1]);
297 
						}
298 
					} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
299 
						if(r[1] == NULL) {
300 
							cm_log("Config", "Missing path at line %d", ln);
301 
							stop = 1;
302 
						} else {
303 
							if(current->sslcert != NULL) free(current->sslcert);
304 
							current->sslcert = cm_strdup(r[1]);
305 
						}
156 nishi 306 
#endif
161 nishi 307 
#ifdef HAS_CHROOT
308 
					} else if(cm_strcaseequ(r[0], "ChrootDirectory")) {
309 
						if(r[1] == NULL) {
310 
							cm_log("Config", "Missing path at line %d", ln);
311 
							stop = 1;
312 
						} else {
313 
							if(current->chroot_path != NULL) free(current->chroot_path);
314 
							current->chroot_path = cm_strdup(r[1]);
315 
						}
316 
#endif
156 nishi 317 
					} else if(cm_strcaseequ(r[0], "ForceLog")) {
318 
						if(r[1] == NULL) {
319 
							cm_log("Config", "Missing log at line %d", ln);
320 
							stop = 1;
321 
						} else {
322 
							cm_force_log(r[1]);
323 
						}
324 
					} else if(cm_strcaseequ(r[0], "EndIf")) {
325 
						if(ifbr == 0) {
326 
							cm_log("Config", "Missing BeginIf at line %d", ln);
327 
							stop = 1;
328 
						}
329 
						ifbr--;
330 
					} else if(cm_strcaseequ(r[0], "BeginIf") || cm_strcaseequ(r[0], "BeginIfNot")) {
331 
						if(r[1] == NULL) {
332 
							cm_log("Config", "Missing condition type at line %d", ln);
333 
						} else {
212 nishi 334 
							bool ign = false;
156 nishi 335 
							ifbr++;
336 
							if(cm_strcaseequ(r[1], "False")) {
337 
								ign = true;
338 
							} else if(cm_strcaseequ(r[1], "True")) {
339 
							} else if(cm_strcaseequ(r[1], "Defined")) {
340 
								if(r[2] == NULL) {
341 
									cm_log("Config", "Missing name at line %d", ln);
342 
									stop = 1;
343 
								} else {
344 
									int i;
345 
									bool fndit = false;
346 
									for(i = 0; config.defined[i] != NULL; i++) {
347 
										if(strcmp(config.defined[i], r[2]) == 0) {
348 
											fndit = true;
349 
											break;
350 
										}
351 
									}
352 
									if(!fndit) {
353 
										ign = true;
354 
									}
355 
								}
356 
							} else {
357 
								cm_log("Config", "Unknown condition type at line %d", ln);
358 
								stop = 1;
359 
							}
360 
							if(cm_strcaseequ(r[0], "BeginIfNot")) ign = !ign;
361 
							if(ign) {
362 
								ignore = ifbr - 1;
363 
							}
364 
						}
61 nishi 365 
					} else if(cm_strcaseequ(r[0], "ServerRoot")) {
366 
						if(r[1] == NULL) {
367 
							cm_log("Config", "Missing path at line %d", ln);
368 
							stop = 1;
369 
						} else {
370 
							chdir(r[1]);
127 nishi 371 
							free(config.server_root);
372 
							config.server_root = cm_strdup(r[1]);
61 nishi 373 
						}
128 nishi 374 
					} else if(cm_strcaseequ(r[0], "ServerAdmin")) {
375 
						if(r[1] == NULL) {
376 
							cm_log("Config", "Missing email at line %d", ln);
377 
							stop = 1;
378 
						} else {
379 
							free(config.server_admin);
380 
							config.server_admin = cm_strdup(r[1]);
381 
						}
19 nishi 382 
					} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
383 
						if(r[1] == NULL) {
384 
							cm_log("Config", "Missing path at line %d", ln);
385 
							stop = 1;
386 
						} else {
387 
							if(current->root != NULL) free(current->root);
21 nishi 388 
							current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
19 nishi 389 
						}
21 nishi 390 
					} else if(cm_strcaseequ(r[0], "MIMEType")) {
391 
						if(r[1] == NULL) {
392 
							cm_log("Config", "Missing extension at line %d", ln);
393 
							stop = 1;
22 nishi 394 
						} else if(r[2] == NULL) {
21 nishi 395 
							cm_log("Config", "Missing MIME at line %d", ln);
396 
							stop = 1;
397 
						} else {
398 
							struct tw_mime_entry* e = &current->mimes[current->mime_count++];
399 
							e->ext = cm_strdup(r[1]);
400 
							e->mime = cm_strdup(r[2]);
401 
						}
22 nishi 402 
					} else if(cm_strcaseequ(r[0], "Icon")) {
403 
						if(r[1] == NULL) {
404 
							cm_log("Config", "Missing MIME at line %d", ln);
405 
							stop = 1;
406 
						} else if(r[2] == NULL) {
407 
							cm_log("Config", "Missing path at line %d", ln);
408 
							stop = 1;
409 
						} else {
410 
							struct tw_icon_entry* e = &current->icons[current->icon_count++];
411 
							e->mime = cm_strdup(r[1]);
412 
							e->icon = cm_strdup(r[2]);
413 
						}
17 nishi 414 
					} else if(cm_strcaseequ(r[0], "LoadModule")) {
415 
						for(i = 1; r[i] != NULL; i++) {
416 
							void* mod = tw_module_load(r[i]);
417 
							if(mod != NULL) {
18 nishi 418 
								config.modules[config.module_count++] = mod;
17 nishi 419 
								if(tw_module_init(mod) != 0) {
420 
									stop = 1;
421 
									break;
422 
								}
423 
							} else {
127 nishi 424 
								cm_log("Config", "Could not load the module at line %d", ln);
17 nishi 425 
								stop = 1;
426 
								break;
427 
							}
428 
						}
24 nishi 429 
					} else if(cm_strcaseequ(r[0], "DirectoryIndex")) {
430 
						for(i = 1; r[i] != NULL; i++) {
431 
							current->indexes[current->index_count++] = cm_strdup(r[i]);
432 
						}
178 nishi 433 
					} else if(cm_strcaseequ(r[0], "ReadmeFile") || cm_strcaseequ(r[0], "Readme")) {
182 nishi 434 
						if(cm_strcaseequ(r[0], "Readme")) {
178 nishi 435 
							cm_force_log("NOTE: Readme directive is deprecated.");
436 
						}
33 nishi 437 
						for(i = 1; r[i] != NULL; i++) {
438 
							current->readmes[current->readme_count++] = cm_strdup(r[i]);
439 
						}
6 nishi 440 
					} else {
39 nishi 441 
						stop = 1;
6 nishi 442 
						if(r[0] != NULL) {
39 nishi 443 
							int argc;
212 nishi 444 
							int i;
445 
							bool called = false;
446 
							struct tw_tool tools;
39 nishi 447 
							for(argc = 0; r[argc] != NULL; argc++)
448 
								;
449 
							stop = 0;
450 
							tw_init_tools(&tools);
451 
							for(i = 0; i < config.module_count; i++) {
452 
								tw_mod_config_t mod_config = (tw_mod_config_t)tw_module_symbol(config.modules[i], "mod_config");
453 
								int resp;
454 
								if(mod_config != NULL && (resp = mod_config(&tools, r, argc)) == TW_CONFIG_PARSED) {
455 
									called = true;
456 
									break;
457 
								}
458 
								if(resp == TW_CONFIG_ERROR) {
459 
									stop = 1;
460 
									called = true;
461 
									break;
462 
								}
463 
							}
464 
							if(!called) {
465 
								cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
466 
								stop = 1;
467 
							}
6 nishi 468 
						}
5 nishi 469 
					}
470 
					for(i = 0; r[i] != NULL; i++) free(r[i]);
471 
					free(r);
4 nishi 472 
				}
473 
				free(l);
474 
				free(line);
475 
				line = malloc(1);
476 
				line[0] = 0;
477 
				if(c <= 0) break;
6 nishi 478 
			} else if(cbuf[0] != '\r') {
4 nishi 479 
				char* tmp = line;
480 
				line = cm_strcat(tmp, cbuf);
481 
				free(tmp);
482 
			}
483 
		}
484 
		free(line);
485 
		fclose(f);
6 nishi 486 
		return stop;
487 
	} else {
5 nishi 488 
		cm_log("Config", "Could not open the file");
4 nishi 489 
		return 1;
490 
	}
491 
}