1 |
#include <stdio.h> |
2 |
#include <stdlib.h> |
3 |
#include <string.h> |
4 |
#include <ctype.h> |
5 |
#include <limits.h> |
6 |
#include <sys/types.h> /* For POSIX.1-2001 non-conformant systems. */ |
7 |
#include <regex.h> |
8 |
|
9 |
#include "config.h" |
10 |
#include "imapfilter.h" |
11 |
#include "account.h" |
12 |
#include "struct.h" |
13 |
|
14 |
|
15 |
extern options_t opts; |
16 |
extern unsigned int flags; |
17 |
|
18 |
account_t *accounts = NULL; /* First node of accounts linked list. */ |
19 |
mboxgrp_t *mboxgrps = NULL; /* First node of mailbox-groups tree. */ |
20 |
|
21 |
account_t *curacct = NULL; /* Current account. */ |
22 |
|
23 |
|
24 |
void init_account(account_t * a); |
25 |
|
26 |
void init_mboxgrp(mboxgrp_t * g); |
27 |
void process_mboxgrp(mboxgrp_t * g, char *mboxs); |
28 |
|
29 |
void init_mbox(mbox_t * m); |
30 |
mbox_t *set_mbox(char *name); |
31 |
|
32 |
int string_decode(char *str); |
33 |
|
34 |
|
35 |
/* |
36 |
* Set new account's variables to safe values. |
37 |
*/ |
38 |
void |
39 |
init_account(account_t * a) |
40 |
{ |
41 |
|
42 |
a->next = NULL; |
43 |
a->key[0] = '\0'; |
44 |
a->server[0] = '\0'; |
45 |
a->user[0] = '\0'; |
46 |
a->pass[0] = '\0'; |
47 |
a->pass_attr = PASS_ATTR_NONE; |
48 |
a->port = 143; |
49 |
a->ssl = SSL_DISABLED; |
50 |
a->mboxes = NULL; |
51 |
} |
52 |
|
53 |
|
54 |
/* |
55 |
* A new account entry was declared. Create it and set it's variables |
56 |
* accordingly. |
57 |
*/ |
58 |
int |
59 |
set_account(char *line, regmatch_t * m) |
60 |
{ |
61 |
int n; |
62 |
char p[6]; |
63 |
account_t *a; |
64 |
|
65 |
a = (account_t *) xmalloc(sizeof(account_t)); |
66 |
a->pass = (char *)smalloc(PASS_LEN); |
67 |
|
68 |
init_account(a); |
69 |
|
70 |
strncat(a->key, line + m[1].rm_so, min(m[1].rm_eo - m[1].rm_so, |
71 |
KEY_LEN - 1)); |
72 |
|
73 |
debug("account: '%s'\n", a->key); |
74 |
|
75 |
if (m[3].rm_so != -1) |
76 |
strncat(a->user, line + m[3].rm_so, |
77 |
min(m[3].rm_eo - m[3].rm_so, USER_LEN - 1)); |
78 |
else |
79 |
strncat(a->user, line + m[5].rm_so, |
80 |
min(m[5].rm_eo - m[5].rm_so, USER_LEN - 1)); |
81 |
|
82 |
if (strchr(a->user, '%')) |
83 |
if (string_decode(a->user)) |
84 |
return ERROR_PARSER; |
85 |
|
86 |
debug("username: '%s'\n", a->user); |
87 |
|
88 |
if (m[4].rm_so != -1) { |
89 |
strncat(a->pass, line + m[4].rm_so, |
90 |
min(m[4].rm_eo - m[4].rm_so, PASS_LEN - 1)); |
91 |
if (strchr(a->pass, '%')) |
92 |
if (string_decode(a->pass)) |
93 |
return ERROR_PARSER; |
94 |
a->pass_attr = PASS_ATTR_PLAIN; |
95 |
if (opts.debug == 1) |
96 |
debug("password: *\n"); |
97 |
else |
98 |
debug("password: '%s'\n", a->pass); |
99 |
} else |
100 |
flags |= FLAG_BLANKPASS; |
101 |
|
102 |
strncat(a->server, line + m[6].rm_so, min(m[6].rm_eo - m[6].rm_so, |
103 |
SERVER_LEN - 1)); |
104 |
|
105 |
debug("server: '%s'\n", a->server); |
106 |
|
107 |
if (m[7].rm_so != -1) { |
108 |
n = min(m[7].rm_eo - m[7].rm_so - 1, 5); |
109 |
xstrncpy(p, line + m[7].rm_so + 1, n); |
110 |
p[n] = '\0'; |
111 |
a->port = strtoul(p, NULL, 10); |
112 |
debug("port: %d\n", a->port); |
113 |
} |
114 |
if (m[8].rm_so != -1) { |
115 |
if (m[7].rm_so == -1) |
116 |
a->port = 993; |
117 |
|
118 |
if (strcasestr(line + m[8].rm_so, "SSL2")) |
119 |
a->ssl = SSL_SSL_V2; |
120 |
else if (strcasestr(line + m[8].rm_so, "SSL3")) |
121 |
a->ssl = SSL_SSL_V3; |
122 |
else |
123 |
a->ssl = SSL_TLS_V1; |
124 |
} |
125 |
APPEND_LINKED_LIST(accounts, a, account); |
126 |
curacct = a; |
127 |
|
128 |
return 0; |
129 |
} |
130 |
|
131 |
|
132 |
#ifdef ENCRYPTED_PASSWORDS |
133 |
/* |
134 |
* Find accounts without a password (candicates for password encryption). |
135 |
*/ |
136 |
char * |
137 |
find_password(char *user, char *serv) |
138 |
{ |
139 |
account_t *a; |
140 |
|
141 |
for (a = accounts; a != NULL; a = a->next) |
142 |
if (a->pass_attr == PASS_ATTR_NONE && |
143 |
!strcmp(a->server, serv) && !strcmp(a->user, user)) { |
144 |
a->pass_attr = PASS_ATTR_CRYPT; |
145 |
return a->pass; |
146 |
} |
147 |
return NULL; |
148 |
} |
149 |
#endif |
150 |
|
151 |
|
152 |
/* |
153 |
* Set new mailbox-group's variables to safe values. |
154 |
*/ |
155 |
void |
156 |
init_mboxgrp(mboxgrp_t * g) |
157 |
{ |
158 |
|
159 |
g->left = g->right = NULL; |
160 |
g->key[0] = '\0'; |
161 |
g->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 *g; |
173 |
char mboxs[LINE_MAX]; |
174 |
|
175 |
mboxs[0] = '\0'; |
176 |
|
177 |
if (accounts == NULL) |
178 |
return ERROR_PARSER; |
179 |
|
180 |
g = (mboxgrp_t *) xmalloc(sizeof(mboxgrp_t)); |
181 |
|
182 |
init_mboxgrp(g); |
183 |
|
184 |
strncat(g->key, line + m[1].rm_so, min(m[1].rm_eo - m[1].rm_so, |
185 |
KEY_LEN - 1)); |
186 |
|
187 |
debug("folder: '%s'\n", g->key); |
188 |
|
189 |
strncat(mboxs, line + m[2].rm_so, min(m[2].rm_eo - m[2].rm_so, |
190 |
LINE_MAX - 1)); |
191 |
|
192 |
process_mboxgrp(g, mboxs); |
193 |
|
194 |
INSERT_TREE(mboxgrps, g, mboxgrp); |
195 |
|
196 |
return 0; |
197 |
} |
198 |
|
199 |
|
200 |
/* |
201 |
* Calls set_mbox() in order to create mailboxes that are part of the |
202 |
* mailbox-group. |
203 |
*/ |
204 |
void |
205 |
process_mboxgrp(mboxgrp_t * g, char *mboxs) |
206 |
{ |
207 |
unsigned int i; |
208 |
char *tok; |
209 |
|
210 |
i = 0; |
211 |
|
212 |
tok = strtok_r(mboxs, ",", &mboxs); |
213 |
while (i < MBOXGRP_MBOXES_MAX - 1 && tok != NULL) { |
214 |
g->mboxes[i] = (mbox_t *) set_mbox(tok); |
215 |
g->mboxes[++i] = NULL; |
216 |
|
217 |
tok = strtok_r(NULL, ",", &mboxs); |
218 |
} |
219 |
} |
220 |
|
221 |
|
222 |
/* |
223 |
* Set new mailbox's variables to safe values. |
224 |
*/ |
225 |
void |
226 |
init_mbox(mbox_t * m) |
227 |
{ |
228 |
|
229 |
m->next = NULL; |
230 |
m->name[0] = '\0'; |
231 |
m->filters[0] = NULL; |
232 |
} |
233 |
|
234 |
|
235 |
/* |
236 |
* A new mailbox was declared, create it and set it's variables accordingly. |
237 |
*/ |
238 |
mbox_t * |
239 |
set_mbox(char *name) |
240 |
{ |
241 |
char s[MBOX_LEN]; |
242 |
mbox_t *m, *am; |
243 |
|
244 |
*s = '\0'; |
245 |
|
246 |
if (*name == '"' && *(name + strlen(name) - 1) == '"') |
247 |
strncat(s, name + 1, min(strlen(name) - 2, MBOX_LEN - 1)); |
248 |
else |
249 |
strncat(s, name, min(strlen(name), MBOX_LEN - 1)); |
250 |
|
251 |
for (am = curacct->mboxes; am != NULL; am = am->next) |
252 |
if (!strcmp(am->name, s)) |
253 |
return am; |
254 |
|
255 |
m = (mbox_t *) xmalloc(sizeof(mbox_t)); |
256 |
|
257 |
init_mbox(m); |
258 |
|
259 |
strncat(m->name, s, MBOX_LEN - 1); |
260 |
|
261 |
debug("mbox: '%s'\n", m->name); |
262 |
|
263 |
APPEND_LINKED_LIST(curacct->mboxes, m, mbox); |
264 |
|
265 |
return m; |
266 |
} |
267 |
|
268 |
|
269 |
/* |
270 |
* Decode the character triplet, consisting of the character '%' |
271 |
* followed by two hexadecimal digits to its corresponding ASCII |
272 |
* character (described in Section 2.2 of RFC 1738). |
273 |
*/ |
274 |
int |
275 |
string_decode(char *str) |
276 |
{ |
277 |
char *c; |
278 |
char hex[3]; |
279 |
|
280 |
c = str; |
281 |
|
282 |
while (*c != '\0') { |
283 |
if (*c == '%') { |
284 |
if (!isxdigit((unsigned char)(*(c + 1))) || |
285 |
!isxdigit((unsigned char)(*(c + 2)))) |
286 |
return ERROR_PARSER; |
287 |
|
288 |
xstrncpy(hex, ++c, 2); |
289 |
hex[2] = '\0'; |
290 |
|
291 |
if (!isprint((unsigned char)(*str = (char)strtoul(hex, |
292 |
NULL, 16)))) |
293 |
return ERROR_PARSER; |
294 |
|
295 |
str++; |
296 |
c += 2; |
297 |
} else |
298 |
*(str++) = *(c++); |
299 |
} |
300 |
*str = '\0'; |
301 |
|
302 |
return 0; |
303 |
} |
304 |
|
305 |
|
306 |
/* |
307 |
* Convert the names of personal mailboxes using the namespace specified |
308 |
* by the mail server. |
309 |
*/ |
310 |
char * |
311 |
apply_namespace(char *mbox, char *prefix, char delim) |
312 |
{ |
313 |
static char m[MBOX_LEN]; |
314 |
char *c; |
315 |
|
316 |
if ((prefix[0] == '\0' && delim == '\0') || |
317 |
(prefix[0] == '\0' && delim == '/') || |
318 |
!strcasecmp(mbox, "INBOX")) |
319 |
return mbox; |
320 |
|
321 |
m[0] = '\0'; |
322 |
strncat(m, prefix, NAMESPACE_PREFIX_LEN - 1); |
323 |
strncat(m, mbox, MBOX_LEN - strlen(m) - 1); |
324 |
|
325 |
c = m; |
326 |
while ((c = strchr(c, '/'))) |
327 |
*(c++) = delim; |
328 |
|
329 |
debug("mailbox: '%s'\n", m); |
330 |
|
331 |
return m; |
332 |
} |