masqmail

view src/alias.c @ 376:028bc124d744

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Removed unused variables.
author markus schnalke <meillo@marmaro.de>
date Sat, 14 Jan 2012 18:20:03 +0100
parents b27f66555ba8
children a408411ff8df
line source
1 /*
2 ** MasqMail
3 ** Copyright (C) 2000-2001 Oliver Kurth
4 ** Copyright (C) 2010 markus schnalke <meillo@marmaro.de>
5 **
6 ** This program is free software; you can redistribute it and/or modify
7 ** it under the terms of the GNU General Public License as published by
8 ** the Free Software Foundation; either version 2 of the License, or
9 ** (at your option) any later version.
10 **
11 ** This program is distributed in the hope that it will be useful,
12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ** GNU General Public License for more details.
15 **
16 ** You should have received a copy of the GNU General Public License
17 ** along with this program; if not, write to the Free Software
18 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 #include "masqmail.h"
22 #include <fnmatch.h>
23
24 gboolean
25 addr_is_local(address *addr)
26 {
27 GList *dom_node;
28 GList *addr_node;
29 address *a;
30
31 if (addr->domain == NULL) {
32 return TRUE;
33 }
34 foreach(conf.local_hosts, dom_node) {
35 /* Note: FNM_CASEFOLD is a GNU extension */
36 if (fnmatch(dom_node->data, addr->domain, FNM_CASEFOLD) != 0) {
37 /* no match, try next */
38 continue;
39 }
40 foreach(conf.not_local_addresses, addr_node) {
41 a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
42 DEBUG(6) debugf("not_local_addresses: addr_node->data=%s a->address=%s\n",
43 addr_node->data, a->address);
44 if (addr_isequal(a, addr, conf.localpartcmp)) {
45 destroy_address(a);
46 /* in local_hosts but also in not_local_addresses */
47 return FALSE;
48 }
49 destroy_address(a);
50 }
51 /* in local_hosts */
52 return TRUE;
53 }
54 foreach(conf.local_addresses, addr_node) {
55 a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
56 DEBUG(6) debugf("local_addresses: addr_node->data=%s a->address=%s\n",
57 addr_node->data, a->address);
58 if (addr_isequal(a, addr, conf.localpartcmp)) {
59 destroy_address(a);
60 /* in local_addresses */
61 return TRUE;
62 }
63 destroy_address(a);
64 }
65 return FALSE;
66 }
67
68 static GList*
69 parse_list(gchar *line)
70 {
71 GList *list = NULL;
72 gchar buf[256];
73 gchar *p, *q;
74
75 p = line;
76 while (*p != '\0') {
77 q = buf;
78 while (isspace(*p))
79 p++;
80 if (*p != '"') {
81 while (*p && (*p != ',') && (q < buf + 255))
82 *(q++) = *(p++);
83 *q = '\0';
84 } else {
85 gboolean escape = FALSE;
86 p++;
87 while (*p && (*p != '"' || escape) && (q < buf + 255)) {
88 if ((*p == '\\') && !escape)
89 escape = TRUE;
90 else {
91 escape = FALSE;
92 *(q++) = *p;
93 }
94 p++;
95 }
96 *q = '\0';
97 while (*p && (*p != ','))
98 p++;
99 }
100 list = g_list_append(list, g_strdup(g_strchomp(buf)));
101 if (*p)
102 p++;
103 }
104 return list;
105 }
106
107 /*
108 ** addr is assumed to be local and no pipe address nor not-to-expand
109 */
110 static GList*
111 expand_one(GList *alias_table, address *addr)
112 {
113 GList *val_list;
114 GList *val_node;
115 GList *alias_list = NULL;
116 GList *alias_node;
117 gchar *val;
118
119 /* expand the local alias */
120 DEBUG(6) debugf("alias: '%s' is local and will get expanded\n", addr->local_part);
121
122 if (strcasecmp(addr->local_part, "postmaster") == 0) {
123 /*
124 ** postmaster must always be matched caseless
125 ** see RFC 822 and RFC 5321
126 */
127 val = (gchar *) table_find_func(alias_table, addr->local_part, strcasecmp);
128 } else {
129 val = (gchar *) table_find_func(alias_table, addr->local_part, conf.localpartcmp);
130 }
131 if (!val) {
132 DEBUG(5) debugf("alias: '%s' is fully expanded, hence completed\n",
133 addr->local_part);
134 return g_list_append(NULL, addr);
135 }
136
137 DEBUG(5) debugf("alias: '%s' -> '%s'\n", addr->local_part, val);
138 val_list = parse_list(val);
139 alias_list = NULL;
140
141 foreach(val_list, val_node) {
142 gchar *val = (gchar *) (val_node->data);
143 address *alias_addr;
144
145 DEBUG(6) debugf("alias: processing '%s'\n", val);
146
147 if (val[0] == '\\') {
148 DEBUG(5) debugf("alias: '%s' is marked as final, hence completed\n", val);
149 alias_addr = create_address_qualified(val+1, TRUE, conf.host_name);
150 g_free(val);
151 DEBUG(6) debugf("alias: address generated: '%s'\n",
152 alias_addr->local_part);
153 alias_list = g_list_append(alias_list, alias_addr);
154 continue;
155 }
156
157 if (val[0] == '|') {
158 DEBUG(5) debugf("alias: '%s' is a pipe address\n", val);
159 alias_addr = create_address_pipe(val);
160 g_free(val);
161 DEBUG(6) debugf("alias: pipe generated: %s\n",
162 alias_addr->local_part);
163 alias_list = g_list_append(alias_list, alias_addr);
164 continue;
165 }
166
167 alias_addr = create_address_qualified(val, TRUE, conf.host_name);
168 g_free(val);
169
170 if (!addr_is_local(alias_addr)) {
171 DEBUG(5) debugf("alias: '%s@%s' is non-local, hence completed\n",
172 alias_addr->local_part, alias_addr->domain);
173 alias_list = g_list_append(alias_list, alias_addr);
174 continue;
175 }
176
177 /* addr is local and to expand at this point */
178 /* but first ... search in parents for loops: */
179 if (addr_isequal_parent(addr, alias_addr, conf.localpartcmp)) {
180 /* loop detected, ignore this path */
181 logwrite(LOG_ALERT, "alias: detected loop, hence ignoring '%s'\n",
182 alias_addr->local_part);
183 continue;
184 }
185 alias_addr->parent = addr;
186
187 /* recurse */
188 DEBUG(6) debugf("alias: >>\n");
189 alias_node = expand_one(alias_table, alias_addr);
190 DEBUG(6) debugf("alias: <<\n");
191 if (alias_node) {
192 alias_list = g_list_concat(alias_list, alias_node);
193 }
194 }
195 g_list_free(val_list);
196 addr->children = g_list_copy(alias_list);
197
198 return alias_list;
199 }
200
201 GList*
202 alias_expand(GList *alias_table, GList *rcpt_list, GList *non_rcpt_list)
203 {
204 GList *rcpt_node = NULL;
205 GList *alias_list = NULL;
206 GList *done_list = NULL;
207 GList *rcpt_node_next = NULL;
208 address *addr = NULL;
209
210 for (rcpt_node=g_list_copy(rcpt_list);
211 rcpt_node;
212 rcpt_node=g_list_next(rcpt_node)) {
213
214 addr = (address *) (rcpt_node->data);
215 if (addr_is_local(addr)) {
216 DEBUG(5) debugf("alias: (orig rcpt addr) expand local '%s'\n",
217 addr->local_part);
218 alias_list = expand_one(alias_table, addr);
219 if (alias_list) {
220 done_list = g_list_concat(done_list, alias_list);
221 }
222 } else {
223 DEBUG(5) debugf("alias: (orig rcpt addr) don't expand non-local '%s@%s'\n",
224 addr->local_part, addr->domain);
225 done_list = g_list_append(done_list, addr);
226 }
227 }
228
229 /* we're done if we don't have to remove rcpts */
230 if (!non_rcpt_list) {
231 return done_list;
232 }
233
234 /* delete addresses of non_rcpt_list from done_list */
235 for (rcpt_node = g_list_first(done_list); rcpt_node; rcpt_node = rcpt_node_next) {
236 address *addr = (address *) (rcpt_node->data);
237 GList *non_node;
238
239 rcpt_node_next = g_list_next(rcpt_node);
240 foreach(non_rcpt_list, non_node) {
241 address *non_addr = (address *) (non_node->data);
242 if (addr_isequal(addr, non_addr, conf.localpartcmp)) {
243 done_list = g_list_remove_link(done_list, rcpt_node);
244 g_list_free_1(rcpt_node);
245 /*
246 ** this address is still in the children
247 ** lists of the original address, simply
248 ** mark them delivered
249 */
250 addr_mark_delivered(addr);
251 break;
252 }
253 }
254 }
255 return done_list;
256 }