/[imapfilter]/imapfilter/account.c
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Contents of /imapfilter/account.c

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Revision 1.1 - (show annotations)
Thu Jul 31 15:46:02 2003 UTC (17 years, 4 months ago) by lefcha
Branch: MAIN
File MIME type: text/plain
Broke up program files and created some new header files.

1 #include <stdio.h>
2 #include <string.h>
3 #include <ctype.h>
4 #include <limits.h>
5
6 #include "config.h"
7 #include "imapfilter.h"
8 #include "account.h"
9 #include "struct.h"
10
11
12 extern unsigned int flags;
13
14 account_t *accounts = NULL; /* First node of accounts linked list. */
15 mboxgrp_t *mboxgrps = NULL; /* First node of mailbox-groups tree. */
16
17 static account_t *cur_acct = NULL; /* Current account. */
18
19
20 void init_account(account_t * node);
21
22 void init_mboxgrp(mboxgrp_t * node);
23 void process_mboxgrp(mboxgrp_t * node, char *mboxs);
24
25 void init_mbox(mbox_t * node);
26 mbox_t *set_mbox(char *name);
27
28 int string_decode(char *str);
29
30
31 /*
32 * Set new account's variables to safe values.
33 */
34 void
35 init_account(account_t * node)
36 {
37 node->next = NULL;
38 node->key[0] = node->server[0] = '\0';
39 node->username[0] = node->password[0] = '\0';
40 node->passwdattr = PASSWORD_NONE;
41 node->port = 143;
42 node->ssl = SSL_DISABLED;
43 node->mboxes = NULL;
44 }
45
46
47 /*
48 * A new account entry was declared. Create it and set it's variables
49 * accordingly.
50 */
51 int
52 set_account(char *line, regmatch_t * m)
53 {
54 int n;
55 char p[6];
56 account_t *node;
57
58 node = (account_t *) xmalloc(sizeof(account_t));
59 node->password = (char *)smalloc(PASSWORD_LEN);
60
61 init_account(node);
62
63 strncat(node->key, line + m[1].rm_so,
64 min(m[1].rm_eo - m[1].rm_so, KEY_LEN - 1));
65
66 #ifdef DEBUG
67 fprintf(stderr, "debug: ACCOUNT: '%s'\n", node->key);
68 #endif
69
70 if (m[3].rm_so != -1) {
71 strncat(node->username, line + m[3].rm_so,
72 min(m[3].rm_eo - m[3].rm_so, USERNAME_LEN - 1));
73 } else {
74 strncat(node->username, line + m[5].rm_so,
75 min(m[5].rm_eo - m[5].rm_so, USERNAME_LEN - 1));
76 }
77 if (strchr(node->username, '%'))
78 if (string_decode(node->username))
79 return ERROR_CONFIG_PARSE;
80
81 #ifdef DEBUG
82 fprintf(stderr, "debug: USERNAME: '%s'\n", node->username);
83 #endif
84
85 if (m[4].rm_so != -1) {
86 strncat(node->password, line + m[4].rm_so,
87 min(m[4].rm_eo - m[4].rm_so, PASSWORD_LEN - 1));
88 if (strchr(node->password, '%'))
89 if (string_decode(node->password))
90 return ERROR_CONFIG_PARSE;
91 node->passwdattr = PASSWORD_PLAIN;
92 } else
93 flags |= FLAG_BLANK_PASSWORD;
94
95 #ifdef DEBUG
96 fprintf(stderr, "debug: PASSWORD: '%s'\n", node->password);
97 #endif
98
99 strncat(node->server, line + m[6].rm_so,
100 min(m[6].rm_eo - m[6].rm_so, SERVER_LEN - 1));
101
102 #ifdef DEBUG
103 fprintf(stderr, "debug: SERVER: '%s'\n", node->server);
104 #endif
105
106 if (m[7].rm_so != -1) {
107 n = min(m[7].rm_eo - m[7].rm_so - 1, 5);
108 xstrncpy(p, line + m[7].rm_so + 1, n);
109 p[n] = '\0';
110 node->port = strtoul(p, NULL, 10);
111 #ifdef DEBUG
112 fprintf(stderr, "debug: PORT: %d\n", node->port);
113 #endif
114 }
115 if (m[8].rm_so != -1) {
116 if (m[7].rm_so == -1)
117 node->port = 993;
118
119 if (strcasestr(line + m[8].rm_so, "SSL2"))
120 node->ssl = SSL_SSL_V2;
121 else if (strcasestr(line + m[8].rm_so, "SSL3"))
122 node->ssl = SSL_SSL_V3;
123 else
124 node->ssl = SSL_TLS_V1;
125 }
126 APPEND_LINKED_LIST(accounts, node, account);
127 cur_acct = node;
128
129 return 0;
130 }
131
132
133 #ifdef ENCRYPTED_PASSWORDS
134 /*
135 * Find accounts without a password (candicates for password encryption).
136 */
137 char *
138 find_password(char *user, char *serv)
139 {
140 account_t *a;
141
142 for (a = accounts; a != NULL; a = a->next)
143 if (a->passwdattr == PASSWORD_NONE &&
144 !strcmp(a->server, serv) && !strcmp(a->username, user)) {
145 a->passwdattr = PASSWORD_ENCRYPTED;
146 return a->password;
147 }
148 return NULL;
149 }
150 #endif
151
152
153 /*
154 * Set new mailbox-group's variables to safe values.
155 */
156 void
157 init_mboxgrp(mboxgrp_t * node)
158 {
159 node->left = node->right = NULL;
160 node->key[0] = '\0';
161 node->mboxes[0] = NULL;
162 }
163
164
165 /*
166 * A new mailbox-group entry was declared. Create it and set it's variables
167 * accordingly.
168 */
169 int
170 set_mboxgrp(char *line, regmatch_t * m)
171 {
172 mboxgrp_t *node;
173 char mboxs[LINE_MAX];
174
175 mboxs[0] = '\0';
176
177 if (accounts == NULL)
178 return ERROR_CONFIG_PARSE;
179
180 node = (mboxgrp_t *) xmalloc(sizeof(mboxgrp_t));
181
182 init_mboxgrp(node);
183
184 strncat(node->key, line + m[1].rm_so,
185 min(m[1].rm_eo - m[1].rm_so, KEY_LEN - 1));
186
187 #ifdef DEBUG
188 fprintf(stderr, "debug: FOLDER: '%s'\n", node->key);
189 #endif
190
191 strncat(mboxs, line + m[2].rm_so,
192 min(m[2].rm_eo - m[2].rm_so, LINE_MAX - 1));
193
194 process_mboxgrp(node, mboxs);
195
196 INSERT_TREE(mboxgrps, node, mboxgrp);
197
198 return 0;
199 }
200
201
202 /*
203 * Calls set_mbox() in order to create mailboxes that are part of
204 * the mailbox-group.
205 */
206 void
207 process_mboxgrp(mboxgrp_t * node, char *mboxs)
208 {
209 unsigned int i;
210 char *tok;
211
212 i = 0;
213
214 tok = strtok_r(mboxs, ",", &mboxs);
215 while (i < MBOXGRP_MBOXES_MAX - 1 && tok != NULL) {
216 node->mboxes[i] = (mbox_t *) set_mbox(tok);
217 node->mboxes[++i] = NULL;
218
219 tok = strtok_r(NULL, ",", &mboxs);
220 }
221 }
222
223
224 /*
225 * Set new mailbox's variables to safe values.
226 */
227 void
228 init_mbox(mbox_t * node)
229 {
230 node->next = NULL;
231 node->name[0] = '\0';
232 node->filters[0] = NULL;
233 }
234
235
236 /*
237 * A new mailbox was declared, create it and set it's variables accordingly.
238 */
239 mbox_t *
240 set_mbox(char *name)
241 {
242 char s[MBOX_NAME_LEN];
243 mbox_t *node, *m;
244
245 *s = '\0';
246
247 if (*name == '"' && *(name + strlen(name) - 1) == '"')
248 strncat(s, name + 1, min(strlen(name) - 2, MBOX_NAME_LEN - 1));
249 else
250 strncat(s, name, min(strlen(name), MBOX_NAME_LEN - 1));
251
252 for (m = cur_acct->mboxes; m != NULL; m = m->next)
253 if (!strcmp(m->name, s))
254 return m;
255
256 node = (mbox_t *) xmalloc(sizeof(mbox_t));
257
258 init_mbox(node);
259
260 strncat(node->name, s, MBOX_NAME_LEN - 1);
261
262 #ifdef DEBUG
263 fprintf(stderr, "debug: MBOX: '%s'\n", node->name);
264 #endif
265
266 APPEND_LINKED_LIST(cur_acct->mboxes, node, mbox);
267
268 return node;
269 }
270
271
272 /*
273 * Decode the character triplet, consisting of the character '%'
274 * followed by two hexadecimal digits to its corresponding ASCII
275 * character (described in Section 2.2 of RFC 1738).
276 */
277 int
278 string_decode(char *str)
279 {
280 char *c;
281 char hex[3];
282
283 c = str;
284
285 while (*c != '\0') {
286 if (*c == '%') {
287 if (!isxdigit((unsigned char)(*(c + 1))) ||
288 !isxdigit((unsigned char)(*(c + 2))))
289 return ERROR_CONFIG_PARSE;
290
291 xstrncpy(hex, ++c, 2);
292 hex[2] = '\0';
293
294 if (!isprint((unsigned char)(*str = (char)strtoul(hex,
295 NULL, 16))))
296 return ERROR_CONFIG_PARSE;
297
298 str++;
299 c += 2;
300 } else
301 *(str++) = *(c++);
302 }
303 *str = '\0';
304
305 return 0;
306 }
307
308
309 /*
310 * Convert the names of personal mailboxes using the namespace specified
311 * by the mail server.
312 */
313 char *
314 apply_namespace(char *mbox, char *prefix, char delim)
315 {
316 static char m[MBOX_NAME_LEN];
317 char *c;
318
319 if ((prefix[0] == '\0' && delim == '\0') ||
320 (prefix[0] == '\0' && delim == '/') ||
321 !strcasecmp(mbox, "INBOX"))
322 return mbox;
323
324 m[0] = '\0';
325 strncat(m, prefix, MBOX_NAME_LEN - 1);
326 strncat(m, mbox, MBOX_NAME_LEN - strlen(m) - 1);
327
328 c = m;
329 while ((c = strchr(c, '/')))
330 *(c++) = delim;
331
332 #ifdef DEBUG
333 fprintf(stderr, "debug: MAILBOX: '%s'\n", m);
334 #endif
335
336 return m;
337 }

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