Mercurial > dnsbl
annotate src/context.cpp @ 86:c1280cd3e248
add multiple debug syslog levels, remove duplicate dnsbl definitions
| author | carl |
|---|---|
| date | Tue, 19 Jul 2005 22:47:15 -0700 |
| parents | fa47e1e401f1 |
| children | 7245c45cef7a |
| rev | line source |
|---|---|
| 72 | 1 /* |
| 2 | |
| 3 Copyright (c) 2004 Carl Byington - 510 Software Group, released under | |
| 4 the GPL version 2 or any later version at your choice available at | |
| 5 http://www.fsf.org/licenses/gpl.txt | |
| 6 | |
| 7 */ | |
| 8 | |
| 9 #include "includes.h" | |
| 71 | 10 |
| 73 | 11 static char* context_version="$Id$"; |
| 71 | 12 |
| 13 char *token_black; | |
| 14 char *token_content; | |
| 15 char *token_context; | |
| 16 char *token_dccfrom; | |
| 17 char *token_dccto; | |
| 18 char *token_default; | |
| 19 char *token_dnsbl; | |
| 20 char *token_dnsbll; | |
| 21 char *token_envfrom; | |
| 22 char *token_envto; | |
| 23 char *token_filter; | |
| 24 char *token_host_limit; | |
| 25 char *token_html_limit; | |
| 26 char *token_html_tags; | |
| 27 char *token_ignore; | |
| 28 char *token_include; | |
| 29 char *token_inherit; | |
| 30 char *token_lbrace; | |
| 75 | 31 char *token_mailhost; |
| 71 | 32 char *token_many; |
| 33 char *token_off; | |
| 75 | 34 char *token_ok2; |
| 71 | 35 char *token_ok; |
| 36 char *token_on; | |
| 37 char *token_rbrace; | |
| 38 char *token_semi; | |
| 39 char *token_soft; | |
| 75 | 40 char *token_substitute; |
| 71 | 41 char *token_tld; |
| 42 char *token_unknown; | |
| 43 char *token_white; | |
| 44 | |
| 45 string_set all_strings; // owns all the strings, only modified by the config loader thread | |
| 75 | 46 const int maxlen = 1000; |
| 71 | 47 |
| 48 DNSBL::DNSBL(char *n, char *s, char *m) { | |
| 49 name = n; | |
| 50 suffix = s; | |
| 51 message = m; | |
| 52 } | |
| 53 | |
| 54 | |
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55 bool DNSBL::operator==(const DNSBL &rhs) { |
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56 return (strcmp(name, rhs.name) == 0) && |
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57 (strcmp(suffix, rhs.suffix) == 0) && |
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58 (strcmp(message, rhs.message) == 0); |
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59 } |
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60 |
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61 |
| 71 | 62 CONFIG::CONFIG() { |
| 63 reference_count = 0; | |
| 64 generation = 0; | |
| 65 load_time = 0; | |
| 66 default_context = NULL; | |
| 67 } | |
| 68 | |
| 69 | |
| 70 CONFIG::~CONFIG() { | |
| 71 for (context_list::iterator i=contexts.begin(); i!=contexts.end(); i++) { | |
| 72 CONTEXT *c = *i; | |
| 73 delete c; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 | |
| 78 void CONFIG::add_context(CONTEXTP con) { | |
| 79 contexts.push_back(con); | |
| 80 if (!default_context && !con->get_parent()) { | |
| 81 // first global context | |
| 82 default_context = con; | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 | |
| 75 | 87 void CONFIG::add_to(char *to, CONTEXTP con) { |
| 88 context_map::iterator i = env_to.find(to); | |
| 71 | 89 if (i != env_to.end()) { |
| 76 | 90 CONTEXTP c = (*i).second; |
| 91 int s = strlen(to); | |
| 92 bool at = s && (to[s-1] == '@'); | |
| 93 if (at && con->is_parent(c->get_parent())) { | |
| 94 if (debug_syslog) { | |
| 95 char oldname[maxlen]; | |
| 96 char newname[maxlen]; | |
| 97 char *oldn = c->get_full_name(oldname, maxlen); | |
| 98 char *newn = con->get_full_name(newname, maxlen); | |
| 99 char buf[maxlen*3]; | |
| 100 snprintf(buf, maxlen*3, "both %s and %s claim envelope to %s, the first one wins", oldn, newn, to); | |
| 101 my_syslog(buf); | |
| 102 } | |
| 103 return; // don't take over user@ entries from your ancestors children | |
| 104 } | |
| 75 | 105 if ((c != con) && (c != con->get_parent())) { |
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106 if (debug_syslog) { |
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107 char oldname[maxlen]; |
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108 char newname[maxlen]; |
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109 char *oldn = c->get_full_name(oldname, maxlen); |
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110 char *newn = con->get_full_name(newname, maxlen); |
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111 char buf[maxlen*3]; |
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112 snprintf(buf, maxlen*3, "both %s and %s claim envelope to %s, the second one wins", oldn, newn, to); |
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113 my_syslog(buf); |
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114 } |
| 75 | 115 } |
| 71 | 116 } |
| 75 | 117 env_to[to] = con; |
| 118 } | |
| 119 | |
| 120 | |
| 121 CONTEXTP CONFIG::find_context(char *to) { | |
| 122 context_map::iterator i = env_to.find(to); | |
| 123 if (i != env_to.end()) return (*i).second; // found user@domain.tld key | |
| 71 | 124 char *x = strchr(to, '@'); |
| 125 if (x) { | |
| 126 x++; | |
| 127 i = env_to.find(x); | |
| 75 | 128 if (i != env_to.end()) return (*i).second; // found domain.tld key |
| 129 char y = *x; | |
| 130 *x = '\0'; | |
| 131 i = env_to.find(to); | |
| 132 *x = y; | |
| 133 if (i != env_to.end()) return (*i).second; // found user@ key | |
| 71 | 134 } |
| 75 | 135 return default_context; |
| 71 | 136 } |
| 137 | |
| 138 | |
| 139 void CONFIG::dump() { | |
| 140 if (default_context) default_context->dump(); | |
| 141 for (context_list::iterator i=contexts.begin(); i!=contexts.end(); i++) { | |
| 142 CONTEXTP c = *i; | |
| 143 CONTEXTP p = c->get_parent(); | |
| 144 if (!p && (c != default_context)) c->dump(); | |
| 145 } | |
| 75 | 146 char buf[maxlen]; |
| 147 for (context_map::iterator i=env_to.begin(); i!=env_to.end(); i++) { | |
| 148 char *to = (*i).first; | |
| 149 CONTEXTP con = (*i).second; | |
| 150 printf("// envelope to %s \t-> context %s \n", to, con->get_full_name(buf,maxlen)); | |
| 151 } | |
| 71 | 152 } |
| 153 | |
| 154 | |
| 155 CONTEXT::CONTEXT(CONTEXTP parent_, char *name_) { | |
| 156 parent = parent_; | |
| 157 name = name_; | |
| 158 env_from_default = (parent) ? token_inherit : token_unknown; | |
| 159 content_filtering = (parent) ? parent->content_filtering : false; | |
| 160 content_suffix = NULL; | |
| 161 content_message = NULL; | |
| 75 | 162 host_limit = (parent) ? parent->host_limit : 0; |
| 71 | 163 host_limit_message = NULL; |
| 75 | 164 host_random = (parent) ? parent->host_random : false; |
| 165 tag_limit = (parent) ? parent->tag_limit : 0; | |
| 71 | 166 tag_limit_message = NULL; |
| 167 } | |
| 168 | |
| 169 | |
| 170 CONTEXT::~CONTEXT() { | |
| 171 for (dnsblp_map::iterator i=dnsbl_names.begin(); i!=dnsbl_names.end(); i++) { | |
| 172 DNSBLP d = (*i).second; | |
| 173 // delete the underlying DNSBL objects. | |
| 174 delete d; | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 | |
| 76 | 179 bool CONTEXT::is_parent(CONTEXTP p) { |
| 180 if (p == parent) return true; | |
| 181 if (!parent) return false; | |
| 182 return parent->is_parent(p); | |
| 183 } | |
| 184 | |
| 185 | |
| 71 | 186 char *CONTEXT::get_full_name(char *buffer, int size) { |
| 187 if (!parent) return name; | |
| 188 char buf[maxlen]; | |
| 189 snprintf(buffer, size, "%s.%s", parent->get_full_name(buf, maxlen), name); | |
| 190 return buffer; | |
| 191 } | |
| 192 | |
| 193 | |
| 194 bool CONTEXT::cover_env_to(char *to) { | |
| 195 char buffer[maxlen]; | |
| 196 char *x = strchr(to, '@'); | |
| 197 if (x) x++; | |
| 198 else x = to; | |
| 75 | 199 if (*x == '\0') return true; // always allow covering addresses with no domain name, eg abuse@ |
| 71 | 200 string_set::iterator i = env_to.find(x); |
| 201 if (i != env_to.end()) return true; | |
| 75 | 202 return false; |
| 71 | 203 } |
| 204 | |
| 205 | |
| 206 char *CONTEXT::find_from(char *from) { | |
| 76 | 207 char *rc = token_inherit; |
| 71 | 208 string_map::iterator i = env_from.find(from); |
| 76 | 209 if (i != env_from.end()) rc = (*i).second; // found user@domain.tld key |
| 210 else { | |
| 211 char *x = strchr(from, '@'); | |
| 212 if (x) { | |
| 213 x++; | |
| 214 i = env_from.find(x); | |
| 215 if (i != env_from.end()) rc = (*i).second; // found domain.tld key | |
| 216 else { | |
| 217 char y = *x; | |
| 218 *x = '\0'; | |
| 219 i = env_from.find(from); | |
| 220 *x = y; | |
| 221 if (i != env_from.end()) rc = (*i).second; // found user@ key | |
| 222 } | |
| 223 } | |
| 71 | 224 } |
| 76 | 225 if (rc == token_inherit) rc = env_from_default; |
| 226 if ((rc == token_inherit) && parent) return parent->find_from(from); | |
| 227 return (rc == token_inherit) ? token_unknown : rc; | |
| 71 | 228 } |
| 229 | |
| 230 | |
| 75 | 231 CONTEXTP CONTEXT::find_context(char *from) { |
| 232 context_map::iterator i = env_from_context.find(from); | |
| 233 if (i != env_from_context.end()) return (*i).second; // found user@domain.tld key | |
| 71 | 234 char *x = strchr(from, '@'); |
| 235 if (x) { | |
| 236 x++; | |
| 75 | 237 i = env_from_context.find(x); |
| 238 if (i != env_from_context.end()) return (*i).second; // found domain.tld key | |
| 239 char y = *x; | |
| 240 *x = '\0'; | |
| 241 i = env_from_context.find(from); | |
| 242 *x = y; | |
| 243 if (i != env_from_context.end()) return (*i).second; // found user@ key | |
| 71 | 244 } |
| 245 return this; | |
| 246 } | |
| 247 | |
| 248 | |
| 249 CONTEXTP CONTEXT::find_from_context_name(char *name) { | |
| 250 context_map::iterator i = children.find(name); | |
| 251 if (i != children.end()) return (*i).second; | |
| 252 return NULL; | |
| 253 } | |
| 254 | |
| 255 | |
| 256 DNSBLP CONTEXT::find_dnsbl(char *name) { | |
| 257 dnsblp_map::iterator i = dnsbl_names.find(name); | |
| 258 if (i != dnsbl_names.end()) return (*i).second; | |
| 259 if (parent) return parent->find_dnsbl(name); | |
| 260 return NULL; | |
| 261 } | |
| 262 | |
| 263 | |
| 76 | 264 char* CONTEXT::get_content_suffix() { |
| 265 if (!content_suffix && parent) return parent->get_content_suffix(); | |
| 266 return content_suffix; | |
| 267 } | |
| 268 | |
| 269 | |
| 270 char* CONTEXT::get_content_message() { | |
| 271 if (!content_message && parent) return parent->get_content_message(); | |
| 272 return content_message; | |
| 273 } | |
| 274 | |
| 275 | |
| 276 string_set& CONTEXT::get_content_host_ignore() { | |
| 277 if (content_host_ignore.empty() && parent) return parent->get_content_host_ignore(); | |
| 278 return content_host_ignore; | |
| 279 } | |
| 280 | |
| 281 | |
| 282 string_set& CONTEXT::get_content_tlds() { | |
| 283 if (content_tlds.empty() && parent) return parent->get_content_tlds(); | |
| 284 return content_tlds; | |
| 285 } | |
| 286 | |
| 287 | |
| 288 string_set& CONTEXT::get_html_tags() { | |
| 289 if (html_tags.empty() && parent) return parent->get_html_tags(); | |
| 290 return html_tags; | |
| 291 } | |
| 292 | |
| 293 | |
| 294 dnsblp_list& CONTEXT::get_dnsbl_list() { | |
| 295 if (dnsbl_list.empty() && parent) return parent->get_dnsbl_list(); | |
| 296 return dnsbl_list; | |
| 297 } | |
| 298 | |
| 299 | |
| 72 | 300 bool CONTEXT::acceptable_content(recorder &memory, char *&msg) { |
| 301 if (memory.excessive_bad_tags(tag_limit)) { | |
| 302 msg = tag_limit_message; | |
| 303 return false; | |
| 304 } | |
| 305 if (!host_random && memory.excessive_hosts(host_limit)) { | |
| 306 msg = host_limit_message; | |
| 307 return false; | |
| 308 } | |
| 309 } | |
| 310 | |
| 311 | |
| 71 | 312 void CONTEXT::dump(int level) { |
| 313 char indent[maxlen]; | |
| 314 int i = min(maxlen-1, level*4); | |
| 315 memset(indent, ' ', i); | |
| 316 indent[i] = '\0'; | |
| 75 | 317 char buf[maxlen]; |
| 318 char *fullname = get_full_name(buf,maxlen); | |
| 319 printf("%s context %s { \t// %s\n", indent, name, fullname); | |
| 71 | 320 |
| 321 for (dnsblp_map::iterator i=dnsbl_names.begin(); i!=dnsbl_names.end(); i++) { | |
| 322 char *n = (*i).first; | |
| 323 DNSBL &d = *(*i).second; | |
| 324 printf("%s dnsbl %s %s \"%s\"; \n", indent, n, d.suffix, d.message); | |
| 325 } | |
| 326 | |
| 327 if (!dnsbl_list.empty()) { | |
| 328 printf("%s dnsbl_list", indent); | |
| 329 for (dnsblp_list::iterator i=dnsbl_list.begin(); i!=dnsbl_list.end(); i++) { | |
| 330 DNSBL &d = *(*i); | |
| 331 printf(" %s", d.name); | |
| 332 } | |
| 333 printf("; \n"); | |
| 334 } | |
| 335 | |
| 336 if (content_filtering) { | |
| 337 printf("%s content on { \n", indent, env_from_default); | |
| 338 if (content_suffix) { | |
| 339 printf("%s filter %s \"%s\"; \n", indent, content_suffix, content_message); | |
| 340 } | |
| 341 if (!content_host_ignore.empty()) { | |
| 342 printf("%s ignore { \n", indent); | |
| 343 for (string_set::iterator i=content_host_ignore.begin(); i!=content_host_ignore.end(); i++) { | |
| 344 printf("%s %s; \n", indent, *i); | |
| 345 } | |
| 346 printf("%s }; \n", indent); | |
| 347 } | |
| 348 if (!content_tlds.empty()) { | |
| 349 printf("%s tld { \n", indent); | |
| 350 printf("%s ", indent); | |
| 351 for (string_set::iterator i=content_tlds.begin(); i!=content_tlds.end(); i++) { | |
| 352 printf("%s; ", *i); | |
| 353 } | |
| 354 printf("\n%s }; \n", indent); | |
| 355 } | |
| 356 if (!html_tags.empty()) { | |
| 357 printf("%s html_tags { \n", indent); | |
| 358 printf("%s ", indent); | |
| 359 for (string_set::iterator i=html_tags.begin(); i!=html_tags.end(); i++) { | |
| 360 printf("%s; ", *i); | |
| 361 } | |
| 362 printf("\n%s }; \n", indent); | |
| 363 } | |
| 364 if (host_limit_message) { | |
| 365 printf("%s host_limit on %d \"%s\"; \n", indent, host_limit, host_limit_message); | |
| 366 } | |
| 367 else if (host_random) { | |
| 368 printf("%s host_limit soft %d; \n", indent, host_limit); | |
| 369 } | |
| 370 else { | |
| 371 printf("%s host_limit off; \n", indent); | |
| 372 } | |
| 373 if (tag_limit_message) { | |
| 75 | 374 printf("%s html_limit on %d \"%s\"; \n", indent, tag_limit, tag_limit_message); |
| 71 | 375 } |
| 376 else { | |
| 75 | 377 printf("%s html_limit off; \n", indent); |
| 71 | 378 } |
| 379 printf("%s }; \n", indent); | |
| 380 } | |
| 381 else { | |
| 382 printf("%s content off {}; \n", indent, env_from_default); | |
| 383 } | |
| 384 | |
| 75 | 385 printf("%s env_to { \t// %s\n", indent, fullname); |
| 71 | 386 for (string_set::iterator i=env_to.begin(); i!=env_to.end(); i++) { |
| 387 printf("%s %s; \n", indent, *i); | |
| 388 } | |
| 389 printf("%s }; \n", indent); | |
| 390 | |
| 391 for (context_map::iterator i=children.begin(); i!=children.end(); i++) { | |
| 392 CONTEXTP c = (*i).second; | |
| 393 c->dump(level+1); | |
| 394 } | |
| 395 | |
| 75 | 396 printf("%s env_from %s { \t// %s\n", indent, env_from_default, fullname); |
| 71 | 397 if (!env_from.empty()) { |
| 398 printf("%s // white/black/unknown \n", indent); | |
| 399 for (string_map::iterator i=env_from.begin(); i!=env_from.end(); i++) { | |
| 400 char *f = (*i).first; | |
| 401 char *t = (*i).second; | |
| 75 | 402 printf("%s %s \t%s; \n", indent, f, t); |
| 71 | 403 } |
| 404 } | |
| 405 if (!env_from_context.empty()) { | |
| 406 printf("%s // child contexts \n", indent); | |
| 407 for (context_map::iterator j=env_from_context.begin(); j!=env_from_context.end(); j++) { | |
| 408 char *f = (*j).first; | |
| 409 CONTEXTP t = (*j).second; | |
| 75 | 410 printf("%s %s \t%s; \n", indent, f, t->name); |
| 71 | 411 } |
| 412 } | |
| 413 printf("%s }; \n", indent); | |
| 414 | |
| 415 printf("%s }; \n", indent); | |
| 416 } | |
| 417 | |
| 418 | |
| 419 //////////////////////////////////////////////// | |
| 420 // helper to discard the strings held by a string_set | |
| 421 // | |
| 74 | 422 void discard(string_set &s) { |
| 71 | 423 for (string_set::iterator i=s.begin(); i!=s.end(); i++) { |
| 424 free(*i); | |
| 425 } | |
| 426 s.clear(); | |
| 427 } | |
| 428 | |
| 429 | |
| 430 //////////////////////////////////////////////// | |
| 431 // helper to register a string in a string set | |
| 432 // | |
| 433 char* register_string(string_set &s, char *name) { | |
| 434 string_set::iterator i = s.find(name); | |
| 435 if (i != s.end()) return *i; | |
| 436 char *x = strdup(name); | |
| 437 s.insert(x); | |
| 438 return x; | |
| 439 } | |
| 440 | |
| 441 | |
| 442 //////////////////////////////////////////////// | |
| 443 // register a global string | |
| 444 // | |
| 445 char* register_string(char *name) { | |
| 446 return register_string(all_strings, name); | |
| 447 } | |
| 448 | |
| 449 | |
| 450 //////////////////////////////////////////////// | |
| 451 // | |
| 452 bool tsa(TOKEN &tok, char *token); | |
| 453 bool tsa(TOKEN &tok, char *token) { | |
| 454 char *have = tok.next(); | |
| 455 if (have == token) return true; | |
| 456 tok.token_error(token, have); | |
| 457 return false; | |
| 458 } | |
| 459 | |
| 460 | |
| 461 //////////////////////////////////////////////// | |
| 462 // | |
| 463 bool parse_dnsbl(TOKEN &tok, CONFIG &dc, CONTEXT &me); | |
| 464 bool parse_dnsbl(TOKEN &tok, CONFIG &dc, CONTEXT &me) { | |
| 465 char *name = tok.next(); | |
| 466 char *suf = tok.next(); | |
| 467 char *msg = tok.next(); | |
| 468 if (!tsa(tok, token_semi)) return false; | |
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469 DNSBLP dnsnew = new DNSBL(name, suf, msg); |
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470 DNSBLP dnsold = me.find_dnsbl(name); |
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471 if (dnsold && (*dnsold == *dnsnew)) { |
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472 // duplicate redefinition, ignore it |
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473 delete dnsnew; |
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474 return true; |
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475 } |
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476 me.add_dnsbl(name, dnsnew); |
| 71 | 477 return true; |
| 478 } | |
| 479 | |
| 480 | |
| 481 //////////////////////////////////////////////// | |
| 482 // | |
| 483 bool parse_dnsbll(TOKEN &tok, CONFIG &dc, CONTEXT &me); | |
| 484 bool parse_dnsbll(TOKEN &tok, CONFIG &dc, CONTEXT &me) { | |
| 485 while (true) { | |
| 486 char *have = tok.next(); | |
| 487 if (!have) break; | |
| 488 if (have == token_semi) break; | |
| 489 DNSBLP dns = me.find_dnsbl(have); | |
| 490 if (dns) { | |
| 491 me.add_dnsbl(dns); | |
| 492 } | |
| 493 else { | |
| 494 tok.token_error("dnsbl name", have); | |
| 495 return false; | |
| 496 } | |
| 497 } | |
| 498 return true; | |
| 499 } | |
| 500 | |
| 501 | |
| 502 //////////////////////////////////////////////// | |
| 503 // | |
| 504 bool parse_content(TOKEN &tok, CONFIG &dc, CONTEXT &me); | |
| 505 bool parse_content(TOKEN &tok, CONFIG &dc, CONTEXT &me) { | |
| 506 char *setting = tok.next(); | |
| 507 if (setting == token_on) { | |
| 508 me.set_content_filtering(true); | |
| 509 } | |
| 510 else if (setting == token_off) { | |
| 511 me.set_content_filtering(false); | |
| 512 } | |
| 513 else { | |
| 514 tok.token_error("on/off", setting); | |
| 515 return false; | |
| 516 } | |
| 517 if (!tsa(tok, token_lbrace)) return false; | |
| 518 while (true) { | |
| 519 char *have = tok.next(); | |
| 520 if (!have) break; | |
| 521 if (have == token_filter) { | |
| 75 | 522 char *suffix = tok.next(); |
| 523 char *messag = tok.next(); | |
| 76 | 524 me.set_content_suffix(suffix); |
| 525 me.set_content_message(messag); | |
| 71 | 526 if (!tsa(tok, token_semi)) return false; |
| 527 } | |
| 528 else if (have == token_ignore) { | |
| 529 if (!tsa(tok, token_lbrace)) return false; | |
| 530 while (true) { | |
| 531 if (!have) break; | |
| 532 char *have = tok.next(); | |
| 76 | 533 if (have == token_rbrace) break; // done |
| 534 me.add_ignore(have); | |
| 71 | 535 } |
| 536 if (!tsa(tok, token_semi)) return false; | |
| 537 } | |
| 538 else if (have == token_tld) { | |
| 539 if (!tsa(tok, token_lbrace)) return false; | |
| 540 while (true) { | |
| 541 char *have = tok.next(); | |
| 542 if (!have) break; | |
| 76 | 543 if (have == token_rbrace) break; // done |
| 544 me.add_tld(have); | |
| 71 | 545 } |
| 546 if (!tsa(tok, token_semi)) return false; | |
| 547 } | |
| 548 else if (have == token_html_limit) { | |
| 549 have = tok.next(); | |
| 550 if (have == token_on) { | |
| 551 me.set_tag_limit(tok.nextint()); | |
| 552 me.set_tag_message(tok.next()); | |
| 553 } | |
| 554 else if (have == token_off) { | |
| 555 me.set_tag_limit(0); | |
| 556 me.set_tag_message(NULL); | |
| 557 } | |
| 558 else { | |
| 559 tok.token_error("on/off", have); | |
| 560 return false; | |
| 561 } | |
| 562 if (!tsa(tok, token_semi)) return false; | |
| 563 } | |
| 564 else if (have == token_html_tags) { | |
| 565 if (!tsa(tok, token_lbrace)) return false; | |
| 566 while (true) { | |
| 567 char *have = tok.next(); | |
| 568 if (!have) break; | |
| 569 if (have == token_rbrace) { | |
| 570 break; // done | |
| 571 } | |
| 572 else { | |
| 79 | 573 me.add_tag(have); // base version |
| 574 char buf[200]; | |
| 575 snprintf(buf, sizeof(buf), "/%s", have); | |
| 576 me.add_tag(register_string(buf)); // leading / | |
| 577 snprintf(buf, sizeof(buf), "%s/", have); | |
| 578 me.add_tag(register_string(buf)); // trailing / | |
| 71 | 579 } |
| 580 } | |
| 581 if (!tsa(tok, token_semi)) return false; | |
| 582 } | |
| 583 else if (have == token_host_limit) { | |
| 584 have = tok.next(); | |
| 585 if (have == token_on) { | |
| 586 me.set_host_limit(tok.nextint()); | |
| 587 me.set_host_message(tok.next()); | |
| 588 me.set_host_random(false); | |
| 589 } | |
| 590 else if (have == token_off) { | |
| 591 me.set_host_limit(0); | |
| 592 me.set_host_message(NULL); | |
| 593 me.set_host_random(false); | |
| 594 } | |
| 595 else if (have == token_soft) { | |
| 596 me.set_host_limit(tok.nextint()); | |
| 597 me.set_host_message(NULL); | |
| 598 me.set_host_random(true); | |
| 599 } | |
| 600 else { | |
| 601 tok.token_error("on/off/soft", have); | |
| 602 return false; | |
| 603 } | |
| 604 if (!tsa(tok, token_semi)) return false; | |
| 605 } | |
| 606 else if (have == token_rbrace) { | |
| 607 break; // done | |
| 608 } | |
| 609 else { | |
| 610 tok.token_error("content keyword", have); | |
| 611 return false; | |
| 612 } | |
| 613 } | |
| 614 return tsa(tok, token_semi); | |
| 615 } | |
| 616 | |
| 617 | |
| 618 //////////////////////////////////////////////// | |
| 619 // | |
| 620 bool parse_envto(TOKEN &tok, CONFIG &dc, CONTEXT &me); | |
| 621 bool parse_envto(TOKEN &tok, CONFIG &dc, CONTEXT &me) { | |
| 622 if (!tsa(tok, token_lbrace)) return false; | |
| 623 while (true) { | |
| 624 char *have = tok.next(); | |
| 625 if (!have) break; | |
| 626 if (have == token_rbrace) break; | |
| 627 if (have == token_semi) { | |
| 628 // optional separators | |
| 629 } | |
| 630 else if (have == token_dccto) { | |
| 631 char *flavor = tok.next(); | |
| 632 if (!tsa(tok, token_lbrace)) return false; | |
| 633 bool keeping = false; | |
| 634 while (true) { | |
| 635 char *have = tok.next(); | |
| 636 if (!have) break; | |
| 637 if (have == token_rbrace) break; | |
| 638 if (have == flavor) { | |
| 639 keeping = true; | |
| 640 continue; | |
| 641 } | |
| 642 else if ((have == token_ok) || (have == token_ok2) || (have == token_many)) { | |
| 643 keeping = false; | |
| 644 continue; | |
| 645 } | |
| 646 if (have == token_envto) { | |
| 647 have = tok.next(); | |
| 648 if (keeping) { | |
| 649 if (me.allow_env_to(have)) { | |
| 650 me.add_to(have); | |
| 651 dc.add_to(have, &me); | |
| 652 } | |
| 653 } | |
| 654 } | |
| 75 | 655 else if (have == token_substitute) { |
| 656 if (tok.next() == token_mailhost) { | |
| 657 have = tok.next(); | |
| 658 if (keeping) { | |
| 659 if (me.allow_env_to(have)) { | |
| 660 me.add_to(have); | |
| 661 dc.add_to(have, &me); | |
| 662 } | |
| 663 } | |
| 664 } | |
| 665 } | |
| 71 | 666 tok.skipeol(); |
| 667 } | |
| 668 } | |
| 669 else if (me.allow_env_to(have)) { | |
| 670 me.add_to(have); | |
| 671 dc.add_to(have, &me); | |
| 672 } | |
| 673 else { | |
| 75 | 674 tok.token_error("user@ or user@domain.tld or domain.tld where domain.tld allowed by parent context", have); |
| 71 | 675 return false; |
| 676 } | |
| 677 } | |
| 678 return tsa(tok, token_semi); | |
| 679 } | |
| 680 | |
| 681 | |
| 682 //////////////////////////////////////////////// | |
| 683 // | |
| 684 bool parse_envfrom(TOKEN &tok, CONFIG &dc, CONTEXT &me); | |
| 685 bool parse_envfrom(TOKEN &tok, CONFIG &dc, CONTEXT &me) { | |
| 686 char *st = tok.next(); | |
| 75 | 687 if ((st == token_black) || (st == token_white) || (st == token_unknown) || (st == token_inherit)) { |
| 71 | 688 me.set_from_default(st); |
| 689 } | |
| 690 else { | |
| 691 tok.push(st); | |
| 692 } | |
| 693 if (!tsa(tok, token_lbrace)) return false; | |
| 694 while (true) { | |
| 695 char *have = tok.next(); | |
| 696 if (!have) break; | |
| 697 if (have == token_rbrace) break; | |
| 698 if (have == token_semi) { | |
| 699 // optional separators | |
| 700 } | |
| 701 else if (have == token_dccfrom) { | |
| 702 if (!tsa(tok, token_lbrace)) return false; | |
| 703 bool keeping = false; | |
| 704 bool many = false; | |
| 705 while (true) { | |
| 706 char *have = tok.next(); | |
| 707 if (!have) break; | |
| 708 if (have == token_rbrace) break; | |
| 709 if (have == token_ok) { | |
| 710 keeping = true; | |
| 711 many = false; | |
| 712 continue; | |
| 713 } | |
| 714 else if (have == token_many) { | |
| 715 keeping = true; | |
| 716 many = true; | |
| 717 continue; | |
| 718 } | |
| 719 else if (have == token_ok2) { | |
| 720 keeping = false; | |
| 721 continue; | |
| 722 } | |
| 723 if (have == token_envfrom) { | |
| 724 have = tok.next(); | |
| 725 if (keeping) { | |
| 726 me.add_from(have, (many) ? token_black : token_white); | |
| 727 } | |
| 728 } | |
| 75 | 729 else if (have == token_substitute) { |
| 730 if (tok.next() == token_mailhost) { | |
| 731 have = tok.next(); | |
| 732 me.add_from(have, (many) ? token_black : token_white); | |
| 733 } | |
| 734 } | |
| 71 | 735 tok.skipeol(); |
| 736 } | |
| 737 } | |
| 738 else { | |
| 739 // may be a valid email address or domain name | |
| 740 char *st = tok.next(); | |
| 741 if ((st == token_black) || (st == token_white) || (st == token_unknown)) { | |
| 742 me.add_from(have, st); | |
| 743 } | |
| 744 else { | |
| 745 CONTEXTP con = me.find_from_context_name(st); | |
| 746 if (con) { | |
| 747 me.add_from_context(have, con); | |
| 748 } | |
| 749 else { | |
| 750 tok.token_error("white/black/unknown or child context name", st); | |
| 751 return false; | |
| 752 } | |
| 753 } | |
| 754 } | |
| 755 } | |
| 756 return tsa(tok, token_semi); | |
| 757 } | |
| 758 | |
| 759 | |
| 760 //////////////////////////////////////////////// | |
| 761 // | |
| 762 bool parse_context(TOKEN &tok, CONFIG &dc, CONTEXTP parent); | |
| 763 bool parse_context(TOKEN &tok, CONFIG &dc, CONTEXTP parent) { | |
| 764 char *name = tok.next(); | |
| 765 if (!tsa(tok, token_lbrace)) return false; | |
| 766 CONTEXTP con = new CONTEXT(parent, name); | |
| 767 | |
| 768 while (true) { | |
| 769 char *have = tok.next(); | |
| 770 if (!have) break; | |
| 771 if (have == token_rbrace) break; // done | |
| 772 if (have == token_dnsbl) { | |
| 773 if (!parse_dnsbl(tok, dc, *con)) return false; | |
| 774 } | |
| 775 else if (have == token_dnsbll) { | |
| 776 if (!parse_dnsbll(tok, dc, *con)) return false; | |
| 777 } | |
| 778 else if (have == token_content) { | |
| 779 if (!parse_content(tok, dc, *con)) return false; | |
| 780 } | |
| 781 else if (have == token_envto) { | |
| 782 if (!parse_envto(tok, dc, *con)) return false; | |
| 783 } | |
| 784 else if (have == token_envfrom) { | |
| 785 if (!parse_envfrom(tok, dc, *con)) return false; | |
| 786 } | |
| 787 else if (have == token_context) { | |
| 788 if (!parse_context(tok, dc, con)) return false; | |
| 789 } | |
| 790 else { | |
| 791 tok.token_error("context keyword", have); | |
| 792 return false; | |
| 793 } | |
| 794 } | |
| 795 | |
| 796 if (!tsa(tok, token_semi)) { | |
| 797 delete con; | |
| 798 return false; | |
| 799 } | |
| 800 dc.add_context(con); | |
| 801 if (parent) parent->add_context(con); | |
| 802 return true; | |
| 803 } | |
| 804 | |
| 805 | |
| 806 //////////////////////////////////////////////// | |
| 807 // parse a config file | |
| 808 // | |
| 809 bool load_conf(CONFIG &dc, char *fn) { | |
| 810 TOKEN tok(fn, &dc.config_files); | |
| 811 while (true) { | |
| 812 char *have = tok.next(); | |
| 813 if (!have) break; | |
| 814 if (have == token_context) { | |
| 815 if (!parse_context(tok, dc, NULL)) { | |
| 816 return false; | |
| 817 } | |
| 818 } | |
| 819 else { | |
| 820 tok.token_error(token_context, have); | |
| 821 return false; | |
| 822 } | |
| 823 } | |
| 72 | 824 return (dc.default_context) ? true : false; |
| 71 | 825 } |
| 826 | |
| 827 | |
| 828 //////////////////////////////////////////////// | |
| 829 // init the tokens | |
| 830 // | |
| 831 void token_init() { | |
| 832 token_black = register_string("black"); | |
| 833 token_content = register_string("content"); | |
| 834 token_context = register_string("context"); | |
| 835 token_dccfrom = register_string("dcc_from"); | |
| 836 token_dccto = register_string("dcc_to"); | |
| 837 token_default = register_string("default"); | |
| 838 token_dnsbl = register_string("dnsbl"); | |
| 839 token_dnsbll = register_string("dnsbl_list"); | |
| 840 token_envfrom = register_string("env_from"); | |
| 841 token_envto = register_string("env_to"); | |
| 842 token_filter = register_string("filter"); | |
| 843 token_host_limit = register_string("host_limit"); | |
| 844 token_html_limit = register_string("html_limit"); | |
| 845 token_html_tags = register_string("html_tags"); | |
| 846 token_ignore = register_string("ignore"); | |
| 847 token_include = register_string("include"); | |
| 848 token_inherit = register_string("inherit"); | |
| 849 token_lbrace = register_string("{"); | |
| 75 | 850 token_mailhost = register_string("mail_host"); |
| 71 | 851 token_many = register_string("many"); |
| 852 token_off = register_string("off"); | |
| 853 token_ok = register_string("ok"); | |
| 854 token_ok2 = register_string("ok2"); | |
| 855 token_on = register_string("on"); | |
| 856 token_rbrace = register_string("}"); | |
| 857 token_semi = register_string(";"); | |
| 858 token_soft = register_string("soft"); | |
| 75 | 859 token_substitute = register_string("substitute"); |
| 71 | 860 token_tld = register_string("tld"); |
| 861 token_unknown = register_string("unknown"); | |
| 862 token_white = register_string("white"); | |
| 863 } |