source: Main/trunk/Server/config.c@ 128

Last change on this file since 128 was 128, checked in by Nishi, on Sep 23, 2024 at 7:19:19 PM

release 1.04
  • Property svn:keywords set to Id
File size: 10.5 KB
Line 
1/* $Id: config.c 128 2024-09-23 10:19:19Z 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
21struct tw_config config;
22
23struct 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
33bool 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;
38again:
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
69void 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 config.vhosts[i].sslkey = NULL;
76 config.vhosts[i].sslcert = NULL;
77 config.vhosts[i].root = NULL;
78 }
79 config.root.sslkey = NULL;
80 config.root.sslcert = NULL;
81 config.root.root = NULL;
82 config.root.mime_count = 0;
83 config.root.dir_count = 0;
84 config.root.icon_count = 0;
85 config.root.index_count = 0;
86 config.root.readme_count = 0;
87 config.root.hideport = 0;
88 config.vhost_count = 0;
89 config.module_count = 0;
90 config.extension = NULL;
91 config.server_root = cm_strdup(PREFIX);
92 config.server_admin = cm_strdup(SERVER_ADMIN);
93 gethostname(config.hostname, 1024);
94 chdir(config.server_root);
95}
96
97int tw_config_read(const char* path) {
98 cm_log("Config", "Reading %s", path);
99 char cbuf[2];
100 cbuf[1] = 0;
101 int ln = 0;
102 FILE* f = fopen(path, "r");
103 if(f != NULL) {
104 char* line = malloc(1);
105 line[0] = 0;
106 int stop = 0;
107 struct tw_config_entry* current = &config.root;
108 char* vhost = NULL;
109 char* dir = NULL;
110 while(stop == 0) {
111 int c = fread(cbuf, 1, 1, f);
112 if(cbuf[0] == '\n' || c <= 0) {
113 ln++;
114 char* l = cm_trim(line);
115 if(strlen(l) > 0 && l[0] != '#') {
116 char** r = cm_split(l, " \t");
117 int i;
118 if(cm_strcaseequ(r[0], "Include") || cm_strcaseequ(r[0], "IncludeOptional")) {
119 for(i = 1; r[i] != NULL; i++) {
120 if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
121 stop = 1;
122 break;
123 }
124 }
125 } else if(cm_strcaseequ(r[0], "BeginDirectory")) {
126 if(dir != NULL) {
127 cm_log("Config", "Already in directory section at line %d", ln);
128 stop = 1;
129 } else {
130 if(r[1] == NULL) {
131 cm_log("Config", "Missing directory at line %d", ln);
132 stop = 1;
133 } else {
134 dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
135 }
136 }
137 } else if(cm_strcaseequ(r[0], "EndDirectory")) {
138 if(dir == NULL) {
139 cm_log("Config", "Not in directory section at line %d", ln);
140 stop = 1;
141 } else {
142 free(dir);
143 dir = NULL;
144 }
145 } else if(cm_strcaseequ(r[0], "Allow")) {
146 if(dir == NULL) {
147 cm_log("Config", "Not in directory section at line %d", ln);
148 stop = 1;
149 } else {
150 if(r[1] == NULL) {
151 cm_log("Config", "Missing argument at line %d", ln);
152 stop = 1;
153 } else {
154 struct tw_dir_entry* e = &current->dirs[current->dir_count++];
155 e->name = cm_strdup(r[1]);
156 e->dir = cm_strdup(dir);
157 e->type = TW_DIR_ALLOW;
158 }
159 }
160 } else if(cm_strcaseequ(r[0], "Deny")) {
161 if(dir == NULL) {
162 cm_log("Config", "Not in directory section at line %d", ln);
163 stop = 1;
164 } else {
165 if(r[1] == NULL) {
166 cm_log("Config", "Missing argument at line %d", ln);
167 stop = 1;
168 } else {
169 struct tw_dir_entry* e = &current->dirs[current->dir_count++];
170 e->name = cm_strdup(r[1]);
171 e->dir = cm_strdup(dir);
172 e->type = TW_DIR_DENY;
173 }
174 }
175 } else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
176 if(vhost != NULL) {
177 cm_log("Config", "Already in virtual host section at line %d", ln);
178 stop = 1;
179 } else {
180 if(r[1] == NULL) {
181 cm_log("Config", "Missing virtual host at line %d", ln);
182 stop = 1;
183 } else {
184 vhost = cm_strdup(r[1]);
185 current = &config.vhosts[config.vhost_count++];
186 current->dir_count = 0;
187 current->mime_count = 0;
188 current->icon_count = 0;
189 current->index_count = 0;
190 current->readme_count = 0;
191 current->hideport = -1;
192 int i;
193 current->name = cm_strdup(vhost);
194 current->port = -1;
195 for(i = 0; vhost[i] != 0; i++) {
196 if(vhost[i] == ':') {
197 current->name[i] = 0;
198 current->port = atoi(current->name + i + 1);
199 break;
200 }
201 }
202 }
203 }
204 } else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
205 if(vhost == NULL) {
206 cm_log("Config", "Not in virtual host section at line %d", ln);
207 stop = 1;
208 } else {
209 free(vhost);
210 vhost = NULL;
211 current = &config.root;
212 }
213 } else if(cm_strcaseequ(r[0], "Listen") || cm_strcaseequ(r[0], "ListenSSL")) {
214 for(i = 1; r[i] != NULL; i++) {
215 uint64_t port = atoi(r[i]);
216 cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
217 if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1ULL << 32);
218 int j;
219 for(j = 0; config.ports[j] != -1; j++)
220 ;
221 config.ports[j] = port;
222 }
223 } else if(cm_strcaseequ(r[0], "HidePort")) {
224 current->hideport = 1;
225 } else if(cm_strcaseequ(r[0], "ShowPort")) {
226 current->hideport = 0;
227 } else if(cm_strcaseequ(r[0], "SSLKey")) {
228 if(r[1] == NULL) {
229 cm_log("Config", "Missing path at line %d", ln);
230 stop = 1;
231 } else {
232 if(current->sslkey != NULL) free(current->sslkey);
233 current->sslkey = cm_strdup(r[1]);
234 }
235 } else if(cm_strcaseequ(r[0], "SSLCertificate")) {
236 if(r[1] == NULL) {
237 cm_log("Config", "Missing path at line %d", ln);
238 stop = 1;
239 } else {
240 if(current->sslcert != NULL) free(current->sslcert);
241 current->sslcert = cm_strdup(r[1]);
242 }
243 } else if(cm_strcaseequ(r[0], "ServerRoot")) {
244 if(r[1] == NULL) {
245 cm_log("Config", "Missing path at line %d", ln);
246 stop = 1;
247 } else {
248 chdir(r[1]);
249 free(config.server_root);
250 config.server_root = cm_strdup(r[1]);
251 }
252 } else if(cm_strcaseequ(r[0], "ServerAdmin")) {
253 if(r[1] == NULL) {
254 cm_log("Config", "Missing email at line %d", ln);
255 stop = 1;
256 } else {
257 free(config.server_admin);
258 config.server_admin = cm_strdup(r[1]);
259 }
260 } else if(cm_strcaseequ(r[0], "DocumentRoot")) {
261 if(r[1] == NULL) {
262 cm_log("Config", "Missing path at line %d", ln);
263 stop = 1;
264 } else {
265 if(current->root != NULL) free(current->root);
266 current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
267 }
268 } else if(cm_strcaseequ(r[0], "ServerRoot")) {
269 if(r[1] == NULL) {
270 cm_log("Config", "Missing path at line %d", ln);
271 stop = 1;
272 } else {
273 if(config.server_root != NULL) free(config.server_root);
274 config.server_root = cm_strdup(r[1]);
275 }
276 } else if(cm_strcaseequ(r[0], "MIMEType")) {
277 if(r[1] == NULL) {
278 cm_log("Config", "Missing extension at line %d", ln);
279 stop = 1;
280 } else if(r[2] == NULL) {
281 cm_log("Config", "Missing MIME at line %d", ln);
282 stop = 1;
283 } else {
284 struct tw_mime_entry* e = &current->mimes[current->mime_count++];
285 e->ext = cm_strdup(r[1]);
286 e->mime = cm_strdup(r[2]);
287 }
288 } else if(cm_strcaseequ(r[0], "Icon")) {
289 if(r[1] == NULL) {
290 cm_log("Config", "Missing MIME at line %d", ln);
291 stop = 1;
292 } else if(r[2] == NULL) {
293 cm_log("Config", "Missing path at line %d", ln);
294 stop = 1;
295 } else {
296 struct tw_icon_entry* e = &current->icons[current->icon_count++];
297 e->mime = cm_strdup(r[1]);
298 e->icon = cm_strdup(r[2]);
299 }
300 } else if(cm_strcaseequ(r[0], "LoadModule")) {
301 for(i = 1; r[i] != NULL; i++) {
302 void* mod = tw_module_load(r[i]);
303 if(mod != NULL) {
304 config.modules[config.module_count++] = mod;
305 if(tw_module_init(mod) != 0) {
306 stop = 1;
307 break;
308 }
309 } else {
310 cm_log("Config", "Could not load the module at line %d", ln);
311 stop = 1;
312 break;
313 }
314 }
315 } else if(cm_strcaseequ(r[0], "DirectoryIndex")) {
316 for(i = 1; r[i] != NULL; i++) {
317 current->indexes[current->index_count++] = cm_strdup(r[i]);
318 }
319 } else if(cm_strcaseequ(r[0], "Readme")) {
320 for(i = 1; r[i] != NULL; i++) {
321 current->readmes[current->readme_count++] = cm_strdup(r[i]);
322 }
323 } else {
324 stop = 1;
325 if(r[0] != NULL) {
326 int argc;
327 for(argc = 0; r[argc] != NULL; argc++)
328 ;
329 stop = 0;
330 int i;
331 bool called = false;
332 struct tw_tool tools;
333 tw_init_tools(&tools);
334 for(i = 0; i < config.module_count; i++) {
335 tw_mod_config_t mod_config = (tw_mod_config_t)tw_module_symbol(config.modules[i], "mod_config");
336 int resp;
337 if(mod_config != NULL && (resp = mod_config(&tools, r, argc)) == TW_CONFIG_PARSED) {
338 called = true;
339 break;
340 }
341 if(resp == TW_CONFIG_ERROR) {
342 stop = 1;
343 called = true;
344 break;
345 }
346 }
347 if(!called) {
348 cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
349 stop = 1;
350 }
351 }
352 }
353 for(i = 0; r[i] != NULL; i++) free(r[i]);
354 free(r);
355 }
356 free(l);
357 free(line);
358 line = malloc(1);
359 line[0] = 0;
360 if(c <= 0) break;
361 } else if(cbuf[0] != '\r') {
362 char* tmp = line;
363 line = cm_strcat(tmp, cbuf);
364 free(tmp);
365 }
366 }
367 free(line);
368 fclose(f);
369 return stop;
370 } else {
371 cm_log("Config", "Could not open the file");
372 return 1;
373 }
374}
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