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4 nishi 1 
/* $Id: config.c 240 2024-10-03 05:54:55Z 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 
 
215 nishi 13 
#if !defined(_MSC_VER) && !defined(__BORLANDC__)
12 nishi 14 
#include <unistd.h>
212 nishi 15 
#endif
4 nishi 16 
 
215 nishi 17 
#if defined(__MINGW32__) || defined(_MSC_VER) || defined(__BORLANDC__)
240 nishi 18 
#ifdef USE_WINSOCK1
19 
#include <winsock.h>
20 
#else
20 nishi 21 
#include <winsock2.h>
22 
#endif
240 nishi 23 
#endif
20 nishi 24 
 
4 nishi 25 
#include <cm_string.h>
26 
#include <cm_log.h>
27 
 
6 nishi 28 
struct tw_config config;
29 
 
12 nishi 30 
struct tw_config_entry* tw_vhost_match(const char* name, int port) {
31 
	int i;
32 
	for(i = 0; i < config.vhost_count; i++) {
13 nishi 33 
		if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
12 nishi 34 
			return &config.vhosts[i];
35 
		}
36 
	}
37 
	return &config.root;
38 
}
39 
 
22 nishi 40 
bool tw_permission_allowed(const char* path, SOCKADDR addr, struct tw_http_request req, struct tw_config_entry* vhost) {
21 nishi 41 
	int i;
42 
	bool found = false;
43 
	bool pathstart = false;
44 
	bool perm = false;
45 
again:
22 nishi 46 
	for(i = 0; i < vhost->dir_count; i++) {
212 nishi 47 
		char* noslash;
21 nishi 48 
		struct tw_dir_entry* e = &vhost->dirs[i];
49 
		pathstart = false;
22 nishi 50 
		if(strlen(path) >= strlen(e->dir)) {
212 nishi 51 
			int j;
21 nishi 52 
			pathstart = true;
22 nishi 53 
			for(j = 0; path[j] != 0 && e->dir[j] != 0; j++) {
54 
				if(path[j] != e->dir[j]) {
21 nishi 55 
					pathstart = false;
56 
					break;
57 
				}
58 
			}
59 
		}
212 nishi 60 
		noslash = cm_strdup(e->dir);
21 nishi 61 
		noslash[strlen(noslash) - 1] = 0;
22 nishi 62 
		if(strcmp(e->dir, path) == 0 || strcmp(noslash, path) == 0 || pathstart) {
21 nishi 63 
			found = true;
22 nishi 64 
			if(strcmp(e->name, "all") == 0) {
21 nishi 65 
				perm = e->type == TW_DIR_ALLOW;
66 
			}
67 
		}
68 
		free(noslash);
69 
	}
22 nishi 70 
	if(!found && vhost != &config.root) {
21 nishi 71 
		vhost = &config.root;
72 
		goto again;
73 
	}
74 
	return perm;
75 
}
76 
 
7 nishi 77 
void tw_config_init(void) {
78 
	int i;
79 
	for(i = 0; i < MAX_PORTS + 1; i++) {
80 
		config.ports[i] = -1;
81 
	}
12 nishi 82 
	for(i = 0; i < MAX_VHOSTS; i++) {
156 nishi 83 
#ifndef NO_SSL
12 nishi 84 
		config.vhosts[i].sslkey = NULL;
85 
		config.vhosts[i].sslcert = NULL;
156 nishi 86 
#endif
19 nishi 87 
		config.vhosts[i].root = NULL;
156 nishi 88 
#ifdef HAS_CHROOT
89 
		config.vhosts[i].chroot_path = NULL;
90 
#endif
12 nishi 91 
	}
156 nishi 92 
#ifndef NO_SSL
12 nishi 93 
	config.root.sslkey = NULL;
94 
	config.root.sslcert = NULL;
156 nishi 95 
#endif
19 nishi 96 
	config.root.root = NULL;
21 nishi 97 
	config.root.mime_count = 0;
98 
	config.root.dir_count = 0;
22 nishi 99 
	config.root.icon_count = 0;
24 nishi 100 
	config.root.index_count = 0;
33 nishi 101 
	config.root.readme_count = 0;
123 nishi 102 
	config.root.hideport = 0;
156 nishi 103 
#ifdef HAS_CHROOT
104 
	config.root.chroot_path = NULL;
105 
#endif
12 nishi 106 
	config.vhost_count = 0;
18 nishi 107 
	config.module_count = 0;
108 
	config.extension = NULL;
17 nishi 109 
	config.server_root = cm_strdup(PREFIX);
128 nishi 110 
	config.server_admin = cm_strdup(SERVER_ADMIN);
156 nishi 111 
	config.defined[0] = NULL;
187 nishi 112 
#if defined(_PSP)
182 nishi 113 
	strcpy(config.hostname, "psp");
187 nishi 114 
#elif defined(__PPU__)
115 
	strcpy(config.hostname, "ps3");
189 nishi 116 
#elif defined(__ps2sdk__)
117 
	strcpy(config.hostname, "ps2");
182 nishi 118 
#else
12 nishi 119 
	gethostname(config.hostname, 1024);
182 nishi 120 
#endif
161 nishi 121 
#ifdef HAS_CHROOT
122 
	tw_add_define("HAS_CHROOT");
123 
#endif
174 nishi 124 
#ifndef NO_SSL
125 
	tw_add_define("HAS_SSL");
126 
#endif
7 nishi 127 
}
6 nishi 128 
 
129 
int tw_config_read(const char* path) {
4 nishi 130 
	char cbuf[2];
6 nishi 131 
	int ln = 0;
156 nishi 132 
	int ifbr = 0;
133 
	int ignore = -1;
212 nishi 134 
	FILE* f;
135 
	cm_log("Config", "Reading %s", path);
136 
	f = fopen(path, "r");
137 
	cbuf[1] = 0;
6 nishi 138 
	if(f != NULL) {
4 nishi 139 
		char* line = malloc(1);
6 nishi 140 
		int stop = 0;
12 nishi 141 
		struct tw_config_entry* current = &config.root;
6 nishi 142 
		char* vhost = NULL;
21 nishi 143 
		char* dir = NULL;
212 nishi 144 
		line[0] = 0;
6 nishi 145 
		while(stop == 0) {
4 nishi 146 
			int c = fread(cbuf, 1, 1, f);
6 nishi 147 
			if(cbuf[0] == '\n' || c <= 0) {
212 nishi 148 
				char* l = cm_trim(line);
6 nishi 149 
				ln++;
150 
				if(strlen(l) > 0 && l[0] != '#') {
5 nishi 151 
					char** r = cm_split(l, " \t");
152 
					int i;
156 nishi 153 
					if(ignore != -1 && ifbr >= ignore) {
154 
						if(cm_strcaseequ(r[0], "EndIf")) ifbr--;
155 
						if(ifbr == 0) {
156 
							ignore = -1;
157 
						}
158 
					} else if(cm_strcaseequ(r[0], "Include") || cm_strcaseequ(r[0], "IncludeOptional")) {
6 nishi 159 
						for(i = 1; r[i] != NULL; i++) {
160 
							if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
161 
								stop = 1;
162 
								break;
5 nishi 163 
							}
164 
						}
156 nishi 165 
					} else if(cm_strcaseequ(r[0], "Define")) {
166 
						if(r[1] == NULL) {
167 
							cm_log("Config", "Missing name at line %d", ln);
168 
							stop = 1;
169 
						} else {
170 
							tw_add_define(r[1]);
171 
						}
172 
					} else if(cm_strcaseequ(r[0], "Undefine")) {
173 
						if(r[1] == NULL) {
174 
							cm_log("Config", "Missing name at line %d", ln);
175 
							stop = 1;
176 
						} else {
177 
							tw_delete_define(r[1]);
178 
						}
21 nishi 179 
					} else if(cm_strcaseequ(r[0], "BeginDirectory")) {
180 
						if(dir != NULL) {
181 
							cm_log("Config", "Already in directory section at line %d", ln);
182 
							stop = 1;
183 
						} else {
184 
							if(r[1] == NULL) {
185 
								cm_log("Config", "Missing directory at line %d", ln);
186 
								stop = 1;
187 
							} else {
188 
								dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
189 
							}
190 
						}
191 
					} else if(cm_strcaseequ(r[0], "EndDirectory")) {
192 
						if(dir == NULL) {
193 
							cm_log("Config", "Not in directory section at line %d", ln);
194 
							stop = 1;
195 
						} else {
196 
							free(dir);
197 
							dir = NULL;
198 
						}
199 
					} else if(cm_strcaseequ(r[0], "Allow")) {
200 
						if(dir == NULL) {
201 
							cm_log("Config", "Not in directory section at line %d", ln);
202 
							stop = 1;
203 
						} else {
204 
							if(r[1] == NULL) {
205 
								cm_log("Config", "Missing argument at line %d", ln);
206 
								stop = 1;
207 
							} else {
208 
								struct tw_dir_entry* e = &current->dirs[current->dir_count++];
209 
								e->name = cm_strdup(r[1]);
210 
								e->dir = cm_strdup(dir);
211 
								e->type = TW_DIR_ALLOW;
212 
							}
213 
						}
214 
					} else if(cm_strcaseequ(r[0], "Deny")) {
215 
						if(dir == NULL) {
216 
							cm_log("Config", "Not in directory section at line %d", ln);
217 
							stop = 1;
218 
						} else {
219 
							if(r[1] == NULL) {
220 
								cm_log("Config", "Missing argument at line %d", ln);
221 
								stop = 1;
222 
							} else {
223 
								struct tw_dir_entry* e = &current->dirs[current->dir_count++];
224 
								e->name = cm_strdup(r[1]);
225 
								e->dir = cm_strdup(dir);
226 
								e->type = TW_DIR_DENY;
227 
							}
228 
						}
6 nishi 229 
					} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
230 
						if(vhost != NULL) {
12 nishi 231 
							cm_log("Config", "Already in virtual host section at line %d", ln);
6 nishi 232 
							stop = 1;
233 
						} else {
234 
							if(r[1] == NULL) {
12 nishi 235 
								cm_log("Config", "Missing virtual host at line %d", ln);
6 nishi 236 
								stop = 1;
237 
							} else {
212 nishi 238 
								int i;
6 nishi 239 
								vhost = cm_strdup(r[1]);
12 nishi 240 
								current = &config.vhosts[config.vhost_count++];
21 nishi 241 
								current->dir_count = 0;
242 
								current->mime_count = 0;
22 nishi 243 
								current->icon_count = 0;
24 nishi 244 
								current->index_count = 0;
33 nishi 245 
								current->readme_count = 0;
123 nishi 246 
								current->hideport = -1;
12 nishi 247 
								current->name = cm_strdup(vhost);
13 nishi 248 
								current->port = -1;
12 nishi 249 
								for(i = 0; vhost[i] != 0; i++) {
250 
									if(vhost[i] == ':') {
251 
										current->name[i] = 0;
252 
										current->port = atoi(current->name + i + 1);
253 
										break;
254 
									}
255 
								}
6 nishi 256 
							}
257 
						}
258 
					} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
259 
						if(vhost == NULL) {
12 nishi 260 
							cm_log("Config", "Not in virtual host section at line %d", ln);
6 nishi 261 
							stop = 1;
262 
						} else {
263 
							free(vhost);
264 
							vhost = NULL;
12 nishi 265 
							current = &config.root;
6 nishi 266 
						}
174 nishi 267 
					} else if(cm_strcaseequ(r[0], "Listen")
268 
#ifndef NO_SSL
269 
						  || cm_strcaseequ(r[0], "ListenSSL")
270 
#endif
271 
					) {
7 nishi 272 
						for(i = 1; r[i] != NULL; i++) {
215 nishi 273 
#if defined(_MSC_VER) || defined(__BORLANDC__)
212 nishi 274 
							uint32_t port = atoi(r[i]);
275 
#else
7 nishi 276 
							uint64_t port = atoi(r[i]);
212 nishi 277 
#endif
278 
							int j;
7 nishi 279 
							cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
215 nishi 280 
#if defined(_MSC_VER) || defined(__BORLANDC__)
212 nishi 281 
							if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1UL << 31);
282 
#else
283 
							if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1ULL << 31);
284 
#endif
7 nishi 285 
							for(j = 0; config.ports[j] != -1; j++)
286 
								;
287 
							config.ports[j] = port;
288 
						}
123 nishi 289 
					} else if(cm_strcaseequ(r[0], "HidePort")) {
290 
						current->hideport = 1;
291 
					} else if(cm_strcaseequ(r[0], "ShowPort")) {
292 
						current->hideport = 0;
156 nishi 293 
#ifndef NO_SSL
12 nishi 294 
					} else if(cm_strcaseequ(r[0], "SSLKey")) {
295 
						if(r[1] == NULL) {
296 
							cm_log("Config", "Missing path at line %d", ln);
297 
							stop = 1;
298 
						} else {
299 
							if(current->sslkey != NULL) free(current->sslkey);
300 
							current->sslkey = cm_strdup(r[1]);
301 
						}
302 
					} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
303 
						if(r[1] == NULL) {
304 
							cm_log("Config", "Missing path at line %d", ln);
305 
							stop = 1;
306 
						} else {
307 
							if(current->sslcert != NULL) free(current->sslcert);
308 
							current->sslcert = cm_strdup(r[1]);
309 
						}
156 nishi 310 
#endif
161 nishi 311 
#ifdef HAS_CHROOT
312 
					} else if(cm_strcaseequ(r[0], "ChrootDirectory")) {
313 
						if(r[1] == NULL) {
314 
							cm_log("Config", "Missing path at line %d", ln);
315 
							stop = 1;
316 
						} else {
317 
							if(current->chroot_path != NULL) free(current->chroot_path);
318 
							current->chroot_path = cm_strdup(r[1]);
319 
						}
320 
#endif
156 nishi 321 
					} else if(cm_strcaseequ(r[0], "ForceLog")) {
322 
						if(r[1] == NULL) {
323 
							cm_log("Config", "Missing log at line %d", ln);
324 
							stop = 1;
325 
						} else {
326 
							cm_force_log(r[1]);
327 
						}
328 
					} else if(cm_strcaseequ(r[0], "EndIf")) {
329 
						if(ifbr == 0) {
330 
							cm_log("Config", "Missing BeginIf at line %d", ln);
331 
							stop = 1;
332 
						}
333 
						ifbr--;
334 
					} else if(cm_strcaseequ(r[0], "BeginIf") || cm_strcaseequ(r[0], "BeginIfNot")) {
335 
						if(r[1] == NULL) {
336 
							cm_log("Config", "Missing condition type at line %d", ln);
337 
						} else {
212 nishi 338 
							bool ign = false;
156 nishi 339 
							ifbr++;
340 
							if(cm_strcaseequ(r[1], "False")) {
341 
								ign = true;
342 
							} else if(cm_strcaseequ(r[1], "True")) {
343 
							} else if(cm_strcaseequ(r[1], "Defined")) {
344 
								if(r[2] == NULL) {
345 
									cm_log("Config", "Missing name at line %d", ln);
346 
									stop = 1;
347 
								} else {
348 
									int i;
349 
									bool fndit = false;
350 
									for(i = 0; config.defined[i] != NULL; i++) {
351 
										if(strcmp(config.defined[i], r[2]) == 0) {
352 
											fndit = true;
353 
											break;
354 
										}
355 
									}
356 
									if(!fndit) {
357 
										ign = true;
358 
									}
359 
								}
360 
							} else {
361 
								cm_log("Config", "Unknown condition type at line %d", ln);
362 
								stop = 1;
363 
							}
364 
							if(cm_strcaseequ(r[0], "BeginIfNot")) ign = !ign;
365 
							if(ign) {
366 
								ignore = ifbr - 1;
367 
							}
368 
						}
61 nishi 369 
					} else if(cm_strcaseequ(r[0], "ServerRoot")) {
370 
						if(r[1] == NULL) {
371 
							cm_log("Config", "Missing path at line %d", ln);
372 
							stop = 1;
373 
						} else {
374 
							chdir(r[1]);
127 nishi 375 
							free(config.server_root);
376 
							config.server_root = cm_strdup(r[1]);
61 nishi 377 
						}
128 nishi 378 
					} else if(cm_strcaseequ(r[0], "ServerAdmin")) {
379 
						if(r[1] == NULL) {
380 
							cm_log("Config", "Missing email at line %d", ln);
381 
							stop = 1;
382 
						} else {
383 
							free(config.server_admin);
384 
							config.server_admin = cm_strdup(r[1]);
385 
						}
19 nishi 386 
					} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
387 
						if(r[1] == NULL) {
388 
							cm_log("Config", "Missing path at line %d", ln);
389 
							stop = 1;
390 
						} else {
391 
							if(current->root != NULL) free(current->root);
21 nishi 392 
							current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
19 nishi 393 
						}
21 nishi 394 
					} else if(cm_strcaseequ(r[0], "MIMEType")) {
395 
						if(r[1] == NULL) {
396 
							cm_log("Config", "Missing extension at line %d", ln);
397 
							stop = 1;
22 nishi 398 
						} else if(r[2] == NULL) {
21 nishi 399 
							cm_log("Config", "Missing MIME at line %d", ln);
400 
							stop = 1;
401 
						} else {
402 
							struct tw_mime_entry* e = &current->mimes[current->mime_count++];
403 
							e->ext = cm_strdup(r[1]);
404 
							e->mime = cm_strdup(r[2]);
405 
						}
22 nishi 406 
					} else if(cm_strcaseequ(r[0], "Icon")) {
407 
						if(r[1] == NULL) {
408 
							cm_log("Config", "Missing MIME at line %d", ln);
409 
							stop = 1;
410 
						} else if(r[2] == NULL) {
411 
							cm_log("Config", "Missing path at line %d", ln);
412 
							stop = 1;
413 
						} else {
414 
							struct tw_icon_entry* e = &current->icons[current->icon_count++];
415 
							e->mime = cm_strdup(r[1]);
416 
							e->icon = cm_strdup(r[2]);
417 
						}
17 nishi 418 
					} else if(cm_strcaseequ(r[0], "LoadModule")) {
419 
						for(i = 1; r[i] != NULL; i++) {
420 
							void* mod = tw_module_load(r[i]);
421 
							if(mod != NULL) {
18 nishi 422 
								config.modules[config.module_count++] = mod;
17 nishi 423 
								if(tw_module_init(mod) != 0) {
424 
									stop = 1;
425 
									break;
426 
								}
427 
							} else {
127 nishi 428 
								cm_log("Config", "Could not load the module at line %d", ln);
17 nishi 429 
								stop = 1;
430 
								break;
431 
							}
432 
						}
24 nishi 433 
					} else if(cm_strcaseequ(r[0], "DirectoryIndex")) {
434 
						for(i = 1; r[i] != NULL; i++) {
435 
							current->indexes[current->index_count++] = cm_strdup(r[i]);
436 
						}
178 nishi 437 
					} else if(cm_strcaseequ(r[0], "ReadmeFile") || cm_strcaseequ(r[0], "Readme")) {
182 nishi 438 
						if(cm_strcaseequ(r[0], "Readme")) {
178 nishi 439 
							cm_force_log("NOTE: Readme directive is deprecated.");
440 
						}
33 nishi 441 
						for(i = 1; r[i] != NULL; i++) {
442 
							current->readmes[current->readme_count++] = cm_strdup(r[i]);
443 
						}
6 nishi 444 
					} else {
39 nishi 445 
						stop = 1;
6 nishi 446 
						if(r[0] != NULL) {
39 nishi 447 
							int argc;
212 nishi 448 
							int i;
449 
							bool called = false;
450 
							struct tw_tool tools;
39 nishi 451 
							for(argc = 0; r[argc] != NULL; argc++)
452 
								;
453 
							stop = 0;
454 
							tw_init_tools(&tools);
455 
							for(i = 0; i < config.module_count; i++) {
456 
								tw_mod_config_t mod_config = (tw_mod_config_t)tw_module_symbol(config.modules[i], "mod_config");
457 
								int resp;
458 
								if(mod_config != NULL && (resp = mod_config(&tools, r, argc)) == TW_CONFIG_PARSED) {
459 
									called = true;
460 
									break;
461 
								}
462 
								if(resp == TW_CONFIG_ERROR) {
463 
									stop = 1;
464 
									called = true;
465 
									break;
466 
								}
467 
							}
468 
							if(!called) {
469 
								cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
470 
								stop = 1;
471 
							}
6 nishi 472 
						}
5 nishi 473 
					}
474 
					for(i = 0; r[i] != NULL; i++) free(r[i]);
475 
					free(r);
4 nishi 476 
				}
477 
				free(l);
478 
				free(line);
479 
				line = malloc(1);
480 
				line[0] = 0;
481 
				if(c <= 0) break;
6 nishi 482 
			} else if(cbuf[0] != '\r') {
4 nishi 483 
				char* tmp = line;
484 
				line = cm_strcat(tmp, cbuf);
485 
				free(tmp);
486 
			}
487 
		}
488 
		free(line);
489 
		fclose(f);
6 nishi 490 
		return stop;
491 
	} else {
5 nishi 492 
		cm_log("Config", "Could not open the file");
4 nishi 493 
		return 1;
494 
	}
495 
}