masqmail

annotate src/route.c @ 369:19d57eb1b6a1

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Minor refactoring change (else-if).
author markus schnalke <meillo@marmaro.de>
date Thu, 20 Oct 2011 10:23:47 +0200
parents 41958685480d
children 4cab237ce923
rev   line source
meillo@367 1 /*
meillo@367 2 ** MasqMail
meillo@367 3 ** Copyright (C) 1999-2001 Oliver Kurth
meillo@367 4 ** Copyright (C) 2010 markus schnalke <meillo@marmaro.de>
meillo@367 5 **
meillo@367 6 ** This program is free software; you can redistribute it and/or modify
meillo@367 7 ** it under the terms of the GNU General Public License as published by
meillo@367 8 ** the Free Software Foundation; either version 2 of the License, or
meillo@367 9 ** (at your option) any later version.
meillo@367 10 **
meillo@367 11 ** This program is distributed in the hope that it will be useful,
meillo@367 12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
meillo@367 13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
meillo@367 14 ** GNU General Public License for more details.
meillo@367 15 **
meillo@367 16 ** You should have received a copy of the GNU General Public License
meillo@367 17 ** along with this program; if not, write to the Free Software
meillo@367 18 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
meillo@0 19 */
meillo@0 20
meillo@15 21 #include <fnmatch.h>
meillo@15 22
meillo@0 23 #include "masqmail.h"
meillo@0 24
meillo@10 25 msgout_perhost*
meillo@366 26 create_msgout_perhost(gchar *host)
meillo@0 27 {
meillo@10 28 msgout_perhost *mo_ph = g_malloc(sizeof(msgout_perhost));
meillo@10 29 if (mo_ph) {
meillo@10 30 mo_ph->host = g_strdup(host);
meillo@10 31 mo_ph->msgout_list = NULL;
meillo@10 32 }
meillo@10 33 return mo_ph;
meillo@0 34 }
meillo@0 35
meillo@10 36 void
meillo@366 37 destroy_msgout_perhost(msgout_perhost *mo_ph)
meillo@0 38 {
meillo@10 39 GList *mo_node;
meillo@0 40
meillo@10 41 foreach(mo_ph->msgout_list, mo_node) {
meillo@10 42 msg_out *mo = (msg_out *) (mo_node->data);
meillo@10 43 /* the rcpt_list is owned by the msgout's, but not the rcpt's themselves */
meillo@10 44 g_list_free(mo->rcpt_list);
meillo@10 45 g_free(mo);
meillo@10 46 }
meillo@10 47 g_list_free(mo_ph->msgout_list);
meillo@10 48 g_free(mo_ph);
meillo@0 49 }
meillo@0 50
meillo@10 51 void
meillo@366 52 rewrite_headers(msg_out *msgout, connect_route *route)
meillo@0 53 {
meillo@367 54 /*
meillo@367 55 ** if set_h_from_domain is set, replace domain in all
meillo@367 56 ** From: headers.
meillo@367 57 */
meillo@10 58 msgout->hdr_list = g_list_copy(msgout->msg->hdr_list);
meillo@0 59
meillo@10 60 /* map from addresses */
meillo@10 61 if (route->map_h_from_addresses != NULL) {
meillo@10 62 GList *hdr_node;
meillo@10 63 foreach(msgout->hdr_list, hdr_node) {
meillo@10 64 header *hdr = (header *) (hdr_node->data);
meillo@10 65 if (hdr->id == HEAD_FROM) {
meillo@10 66 header *new_hdr = copy_header(hdr);
meillo@10 67 if (map_address_header(new_hdr, route->map_h_from_addresses)) {
meillo@10 68 hdr_node->data = new_hdr;
meillo@10 69 /* we need this list only to carefully free the extra headers: */
meillo@10 70 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 71 } else
meillo@10 72 g_free(new_hdr);
meillo@10 73 }
meillo@10 74 }
meillo@10 75 } else {
meillo@10 76 /* replace from domain */
meillo@10 77 if (route->set_h_from_domain != NULL) {
meillo@10 78 GList *hdr_node;
meillo@10 79
meillo@10 80 foreach(msgout->hdr_list, hdr_node) {
meillo@10 81 header *hdr = (header *) (hdr_node->data);
meillo@10 82 if (hdr->id == HEAD_FROM) {
meillo@10 83 header *new_hdr = copy_header(hdr);
meillo@10 84
meillo@10 85 DEBUG(5) debugf("setting From: domain to %s\n", route->set_h_from_domain);
meillo@10 86 if (set_address_header_domain(new_hdr, route->set_h_from_domain)) {
meillo@10 87 hdr_node->data = new_hdr;
meillo@10 88 /* we need this list only to carefully free the extra headers: */
meillo@10 89 DEBUG(6) debugf("header = %s\n", new_hdr->header);
meillo@10 90 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 91 } else {
meillo@15 92 logwrite(LOG_ALERT, "error in set_address_header_domain(%s, %s)\n",
meillo@15 93 new_hdr->value, route->set_h_from_domain);
meillo@10 94 }
meillo@10 95 }
meillo@10 96 }
meillo@10 97 }
meillo@0 98 }
meillo@0 99
meillo@10 100 /* map reply-to addresses */
meillo@10 101 if (route->map_h_reply_to_addresses != NULL) {
meillo@10 102 GList *hdr_node;
meillo@10 103 foreach(msgout->hdr_list, hdr_node) {
meillo@10 104 header *hdr = (header *) (hdr_node->data);
meillo@10 105 if (hdr->id == HEAD_REPLY_TO) {
meillo@10 106 header *new_hdr = copy_header(hdr);
meillo@10 107 if (map_address_header
meillo@10 108 (new_hdr, route->map_h_reply_to_addresses)) {
meillo@10 109 hdr_node->data = new_hdr;
meillo@10 110 /* we need this list only to carefully free the extra headers: */
meillo@10 111 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 112 } else
meillo@10 113 g_free(new_hdr);
meillo@10 114 }
meillo@10 115 }
meillo@10 116 } else {
meillo@10 117 /* replace Reply-to domain */
meillo@10 118 if (route->set_h_reply_to_domain != NULL) {
meillo@10 119 GList *hdr_node;
meillo@10 120
meillo@10 121 foreach(msgout->hdr_list, hdr_node) {
meillo@10 122 header *hdr = (header *) (hdr_node->data);
meillo@10 123 if (hdr->id == HEAD_REPLY_TO) {
meillo@10 124 header *new_hdr = copy_header(hdr);
meillo@10 125
meillo@10 126 set_address_header_domain(new_hdr, route-> set_h_reply_to_domain);
meillo@10 127 hdr_node->data = new_hdr;
meillo@10 128 /* we need this list only to carefully free the extra headers: */
meillo@10 129 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 130 }
meillo@10 131 }
meillo@10 132 }
meillo@0 133 }
meillo@0 134
meillo@10 135 /* map Mail-Followup-To addresses */
meillo@10 136 if (route->map_h_mail_followup_to_addresses != NULL) {
meillo@10 137 GList *hdr_node;
meillo@10 138 foreach(msgout->hdr_list, hdr_node) {
meillo@10 139 header *hdr = (header *) (hdr_node->data);
meillo@10 140 if (strncasecmp(hdr->header, "Mail-Followup-To", 16) == 0) {
meillo@10 141 header *new_hdr = copy_header(hdr);
meillo@10 142 if (map_address_header(new_hdr, route->map_h_mail_followup_to_addresses)) {
meillo@10 143 hdr_node->data = new_hdr;
meillo@10 144 /* we need this list only to carefully free the extra headers: */
meillo@10 145 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 146 } else
meillo@10 147 g_free(new_hdr);
meillo@10 148 }
meillo@10 149 }
meillo@10 150 }
meillo@0 151
meillo@10 152 /* set Sender: domain to return_path->domain */
meillo@10 153 if (route->expand_h_sender_domain) {
meillo@10 154 GList *hdr_node;
meillo@0 155
meillo@10 156 foreach(msgout->hdr_list, hdr_node) {
meillo@10 157 header *hdr = (header *) (hdr_node->data);
meillo@10 158 if (hdr->id == HEAD_SENDER) {
meillo@10 159 header *new_hdr = copy_header(hdr);
meillo@0 160
meillo@10 161 set_address_header_domain(new_hdr, msgout->return_path->domain);
meillo@10 162 hdr_node->data = new_hdr;
meillo@10 163 /* we need this list only to carefully free the extra headers: */
meillo@10 164 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 165 }
meillo@10 166 }
meillo@10 167 }
meillo@0 168
meillo@10 169 /* set Sender: domain to return_path->domain */
meillo@10 170 if (route->expand_h_sender_address) {
meillo@10 171 GList *hdr_node;
meillo@0 172
meillo@10 173 foreach(msgout->hdr_list, hdr_node) {
meillo@10 174 header *hdr = (header *) (hdr_node->data);
meillo@10 175 if (hdr->id == HEAD_SENDER) {
meillo@10 176 header *new_hdr;
meillo@0 177
meillo@15 178 new_hdr = create_header(HEAD_SENDER, "Sender: %s@%s\n",
meillo@15 179 msgout->return_path->local_part, msgout->return_path->domain);
meillo@10 180 hdr_node->data = new_hdr;
meillo@10 181 /* we need this list only to carefully free the extra headers: */
meillo@10 182 msgout->xtra_hdr_list = g_list_append(msgout->xtra_hdr_list, new_hdr);
meillo@10 183 }
meillo@10 184 }
meillo@10 185 }
meillo@0 186
meillo@10 187 if (msgout->xtra_hdr_list == NULL) {
meillo@10 188 /* nothing was changed */
meillo@10 189 g_list_free(msgout->hdr_list);
meillo@10 190 msgout->hdr_list = NULL;
meillo@10 191 }
meillo@10 192 DEBUG(5) debugf("rewrite_headers() returning\n");
meillo@0 193 }
meillo@0 194
meillo@237 195 /*
meillo@367 196 ** Split a recipient list into the three groups:
meillo@367 197 ** - local recipients
meillo@367 198 ** - those maching the patterns
meillo@367 199 ** - those not matching the patterns
meillo@367 200 ** If patterns is NULL: only splitting between local and others is done.
meillo@237 201 */
meillo@10 202 void
meillo@367 203 split_rcpts(GList *rcpt_list, GList *patterns, GList **rl_local,
meillo@367 204 GList **rl_matching, GList **rl_others)
meillo@0 205 {
meillo@10 206 GList *rcpt_node;
meillo@237 207 GList *host_node = NULL;
meillo@237 208 address *rcpt = NULL;
meillo@0 209
meillo@10 210 if (rcpt_list == NULL)
meillo@10 211 return;
meillo@0 212
meillo@10 213 foreach(rcpt_list, rcpt_node) {
meillo@237 214 rcpt = (address *) (rcpt_node->data);
meillo@237 215 host_node = NULL;
meillo@0 216
meillo@237 217 if (addr_is_local(rcpt)) {
meillo@237 218 if (rl_local)
meillo@237 219 *rl_local = g_list_append(*rl_local, rcpt);
meillo@237 220 } else {
meillo@367 221 /*
meillo@367 222 ** if patterns is NULL, host_node will be NULL,
meillo@367 223 ** hence all non-locals are put to others
meillo@367 224 */
meillo@355 225 foreach(patterns, host_node) {
meillo@237 226 gchar *host = (gchar *) (host_node->data);
meillo@237 227 if (fnmatch(host, rcpt->domain, FNM_CASEFOLD) == 0)
meillo@237 228 break;
meillo@237 229 }
meillo@237 230 if (host_node) {
meillo@355 231 if (rl_matching)
meillo@355 232 *rl_matching = g_list_append(*rl_matching, rcpt);
meillo@237 233 } else {
meillo@237 234 if (rl_others)
meillo@237 235 *rl_others = g_list_append(*rl_others, rcpt);
meillo@237 236 }
meillo@10 237 }
meillo@10 238 }
meillo@0 239 }
meillo@0 240
meillo@345 241 /*
meillo@367 242 ** Return a new list of the local rcpts in the rcpt_list
meillo@367 243 ** TODO: This function is almost exactly the same as remote_rcpts(). Merge?
meillo@345 244 */
meillo@345 245 GList*
meillo@366 246 local_rcpts(GList *rcpt_list)
meillo@345 247 {
meillo@345 248 GList *rcpt_node;
meillo@345 249 GList *local_rcpts = NULL;
meillo@345 250 address *rcpt = NULL;
meillo@345 251
meillo@345 252 if (!rcpt_list) {
meillo@345 253 return NULL;
meillo@345 254 }
meillo@345 255 foreach(rcpt_list, rcpt_node) {
meillo@345 256 rcpt = (address *) (rcpt_node->data);
meillo@345 257 if (addr_is_local(rcpt)) {
meillo@345 258 local_rcpts = g_list_append(local_rcpts, rcpt);
meillo@345 259 }
meillo@345 260 }
meillo@345 261 return local_rcpts;
meillo@345 262 }
meillo@345 263
meillo@345 264 /*
meillo@367 265 ** Return a new list of non-local rcpts in the rcpt_list
meillo@367 266 ** TODO: This function is almost exactly the same as local_rcpts(). Merge?
meillo@345 267 */
meillo@345 268 GList*
meillo@366 269 remote_rcpts(GList *rcpt_list)
meillo@345 270 {
meillo@345 271 GList *rcpt_node;
meillo@345 272 GList *remote_rcpts = NULL;
meillo@345 273 address *rcpt = NULL;
meillo@345 274
meillo@345 275 if (!rcpt_list) {
meillo@345 276 return NULL;
meillo@345 277 }
meillo@345 278 foreach(rcpt_list, rcpt_node) {
meillo@345 279 rcpt = (address *) (rcpt_node->data);
meillo@345 280 if (!addr_is_local(rcpt)) {
meillo@345 281 remote_rcpts = g_list_append(remote_rcpts, rcpt);
meillo@345 282 }
meillo@345 283 }
meillo@345 284 return remote_rcpts;
meillo@345 285 }
meillo@345 286
meillo@10 287 static gint
meillo@317 288 _g_list_addrcmp(gconstpointer pattern, gconstpointer addr)
meillo@0 289 {
meillo@317 290 int res;
meillo@366 291 address *patternaddr = (address*) pattern;
meillo@366 292 address *stringaddr = (address*) addr;
meillo@317 293
meillo@317 294 DEBUG(6) debugf("_g_list_addrcmp: pattern `%s' `%s' on string `%s' `%s'\n",
meillo@317 295 patternaddr->local_part, patternaddr->domain,
meillo@317 296 stringaddr->local_part, stringaddr->domain);
meillo@317 297 /* TODO: check if we should match here dependent on caseless_matching */
meillo@317 298 res = fnmatch(patternaddr->local_part, stringaddr->local_part, 0);
meillo@317 299 if (res != 0) {
meillo@317 300 DEBUG(6) debugf("_g_list_addrcmp: ... failed on local_part\n");
meillo@317 301 return res;
meillo@317 302 }
meillo@317 303 res = fnmatch(patternaddr->domain, stringaddr->domain, FNM_CASEFOLD);
meillo@317 304 DEBUG(6) debugf("_g_list_addrcmp: ... %s\n", (res==0) ? "matched" : "failed on domain");
meillo@317 305 return res;
meillo@0 306 }
meillo@0 307
meillo@10 308 gboolean
meillo@366 309 route_sender_is_allowed(connect_route *route, address *ret_path)
meillo@0 310 {
meillo@317 311 if (route->denied_senders && g_list_find_custom(route->denied_senders, ret_path, _g_list_addrcmp)) {
meillo@317 312 return FALSE;
meillo@10 313 }
meillo@317 314 if (route->allowed_senders) {
meillo@317 315 if (g_list_find_custom(route->allowed_senders, ret_path, _g_list_addrcmp)) {
meillo@10 316 return TRUE;
meillo@10 317 } else {
meillo@10 318 return FALSE;
meillo@10 319 }
meillo@10 320 }
meillo@10 321 return TRUE;
meillo@0 322 }
meillo@0 323
meillo@10 324 /*
meillo@367 325 ** Make lists of matching/not matching rcpts.
meillo@367 326 ** Local domains are NOT regared here, these should be sorted out previously
meillo@0 327 */
meillo@10 328 void
meillo@366 329 route_split_rcpts(connect_route *route, GList *rcpt_list, GList **p_rcpt_list, GList **p_non_rcpt_list)
meillo@0 330 {
meillo@10 331 GList *tmp_list = NULL;
meillo@10 332 /* sort out those domains that can be sent over this connection: */
meillo@317 333 if (route->allowed_recipients) {
meillo@317 334 DEBUG(5) debugf("testing for route->allowed_recipients\n");
meillo@317 335 split_rcpts(rcpt_list, route->allowed_recipients, NULL, &tmp_list, p_non_rcpt_list);
meillo@10 336 } else {
meillo@317 337 DEBUG(5) debugf("route->allowed_recipients == NULL\n");
meillo@10 338 tmp_list = g_list_copy(rcpt_list);
meillo@10 339 }
meillo@0 340
meillo@10 341 /* sort out those domains that cannot be sent over this connection: */
meillo@317 342 split_rcpts(tmp_list, route->denied_recipients, NULL, p_non_rcpt_list, p_rcpt_list);
meillo@10 343 g_list_free(tmp_list);
meillo@0 344 }
meillo@0 345
meillo@10 346 msg_out*
meillo@366 347 route_prepare_msgout(connect_route *route, msg_out *msgout)
meillo@0 348 {
meillo@10 349 message *msg = msgout->msg;
meillo@10 350 GList *rcpt_list = msgout->rcpt_list;
meillo@0 351
meillo@10 352 if (rcpt_list != NULL) {
meillo@10 353 /* found a few */
meillo@10 354 DEBUG(5) {
meillo@10 355 GList *node;
meillo@10 356 debugf("rcpts for routed delivery, route = %s, id = %s\n", route->name, msg->uid);
meillo@10 357 foreach(rcpt_list, node) {
meillo@10 358 address *rcpt = (address *) (node->data);
meillo@114 359 debugf(" rcpt for routed delivery: <%s@%s>\n",
meillo@114 360 rcpt->local_part, rcpt->domain);
meillo@10 361 }
meillo@10 362 }
meillo@0 363
meillo@367 364 /*
meillo@367 365 ** rewrite return path if there is a table, use that
meillo@367 366 ** if an address is found and if it has a domain, use that
meillo@367 367 */
meillo@10 368 if (route->map_return_path_addresses) {
meillo@10 369 address *ret_path = NULL;
meillo@10 370 DEBUG(5) debugf("looking up %s in map_return_path_addresses\n", msg->return_path->local_part);
meillo@10 371 ret_path = (address *) table_find_fnmatch(route->map_return_path_addresses, msg->return_path->local_part);
meillo@10 372 if (ret_path) {
meillo@10 373 DEBUG(5) debugf("found <%s@%s>\n", ret_path->local_part, ret_path->domain);
meillo@10 374 if (ret_path->domain == NULL)
meillo@10 375 ret_path->domain = route->set_return_path_domain
meillo@10 376 ? route->set_return_path_domain
meillo@10 377 : msg->return_path->domain;
meillo@10 378 msgout->return_path = copy_address(ret_path);
meillo@10 379 }
meillo@10 380 }
meillo@10 381 if (msgout->return_path == NULL) {
meillo@10 382 DEBUG(5) debugf("setting return path to %s\n", route->set_return_path_domain);
meillo@10 383 msgout->return_path = copy_modify_address(msg->return_path, NULL, route->set_return_path_domain);
meillo@10 384 }
meillo@10 385 rewrite_headers(msgout, route);
meillo@10 386
meillo@10 387 return msgout;
meillo@10 388 }
meillo@10 389 return NULL;
meillo@0 390 }
meillo@0 391
meillo@367 392 /*
meillo@367 393 ** put msgout's is msgout_list into bins (msgout_perhost structs) for each
meillo@367 394 ** host. Used if there is no mail_host.
meillo@367 395 ** route param is not used, we leave it here because that may change.
meillo@367 396 */
meillo@10 397 GList*
meillo@366 398 route_msgout_list(connect_route *route, GList *msgout_list)
meillo@0 399 {
meillo@10 400 GList *mo_ph_list = NULL;
meillo@10 401 GList *msgout_node;
meillo@0 402
meillo@10 403 foreach(msgout_list, msgout_node) {
meillo@10 404 msg_out *msgout = (msg_out *) (msgout_node->data);
meillo@10 405 msg_out *msgout_new;
meillo@10 406 GList *rcpt_list = msgout->rcpt_list;
meillo@10 407 GList *rcpt_node;
meillo@0 408
meillo@10 409 foreach(rcpt_list, rcpt_node) {
meillo@10 410 address *rcpt = rcpt_node->data;
meillo@10 411 msgout_perhost *mo_ph = NULL;
meillo@10 412 GList *mo_ph_node = NULL;
meillo@0 413
meillo@10 414 /* search host in mo_ph_list */
meillo@10 415 foreach(mo_ph_list, mo_ph_node) {
meillo@10 416 mo_ph = (msgout_perhost *) (mo_ph_node->data);
meillo@10 417 if (strcasecmp(mo_ph->host, rcpt->domain) == 0)
meillo@10 418 break;
meillo@10 419 }
meillo@10 420 if (mo_ph_node != NULL) {
meillo@10 421 /* there is already a rcpt for this host */
meillo@10 422 msg_out *msgout_last = (msg_out *) ((g_list_last(mo_ph->msgout_list))->data);
meillo@10 423 if (msgout_last->msg == msgout->msg) {
meillo@367 424 /*
meillo@367 425 ** if it is also the same message,
meillo@367 426 ** it must be the last one
meillo@367 427 ** appended to mo_ph->msgout_list
meillo@367 428 ** (since outer loop goes through
meillo@367 429 ** msgout_list)
meillo@367 430 */
meillo@10 431 msgout_last->rcpt_list = g_list_append(msgout_last->rcpt_list, rcpt);
meillo@10 432 } else {
meillo@10 433 /* if not, we append a new msgout */
meillo@10 434 /* make a copy of msgout */
meillo@10 435 msgout_new = create_msg_out(msgout->msg);
meillo@10 436 msgout_new->return_path = msgout->return_path;
meillo@10 437 msgout_new->hdr_list = msgout->hdr_list;
meillo@0 438
meillo@10 439 /* append our rcpt to it */
meillo@10 440 /* It is the 1st rcpt for this msg to this host, therefore we safely give NULL */
meillo@10 441 msgout_new->rcpt_list = g_list_append(NULL, rcpt);
meillo@10 442 mo_ph->msgout_list = g_list_append(mo_ph->msgout_list, msgout_new);
meillo@10 443 }
meillo@10 444 } else {
meillo@10 445 /* this rcpt to goes to another host */
meillo@10 446 mo_ph = create_msgout_perhost(rcpt->domain);
meillo@10 447 mo_ph_list = g_list_append(mo_ph_list, mo_ph);
meillo@0 448
meillo@10 449 /* make a copy of msgout */
meillo@10 450 msgout_new = create_msg_out(msgout->msg);
meillo@10 451 msgout_new->return_path = msgout->return_path;
meillo@10 452 msgout_new->hdr_list = msgout->hdr_list;
meillo@0 453
meillo@10 454 /* append our rcpt to it */
meillo@10 455 /* It is the 1st rcpt for this msg to this host, therefore we safely give NULL */
meillo@10 456 msgout_new->rcpt_list = g_list_append(NULL, rcpt);
meillo@10 457 mo_ph->msgout_list = g_list_append(mo_ph->msgout_list, msgout_new);
meillo@10 458 } /* if mo_ph != NULL */
meillo@10 459 } /* foreach(rcpt_list, ... */
meillo@10 460 } /* foreach(msgout_list, ... */
meillo@10 461
meillo@10 462 return mo_ph_list;
meillo@0 463 }