1 |
#include <stdio.h> |
2 |
#include <stdlib.h> |
3 |
#include <string.h> |
4 |
#include <strings.h> |
5 |
#include <ctype.h> |
6 |
#include <sys/types.h> |
7 |
#include <time.h> |
8 |
#include <regex.h> |
9 |
|
10 |
#include "config.h" |
11 |
#include "imapfilter.h" |
12 |
#include "account.h" |
13 |
#include "filter.h" |
14 |
#include "struct.h" |
15 |
|
16 |
|
17 |
extern account_t *accounts; |
18 |
extern mboxgrp_t *mboxgrps; |
19 |
|
20 |
filter_t *filters = NULL; /* First node of filters tree. */ |
21 |
|
22 |
filter_t *curfltr = NULL; /* Current filter. */ |
23 |
|
24 |
|
25 |
void init_filter(filter_t * f); |
26 |
|
27 |
void init_mask(mask_t * m); |
28 |
|
29 |
void link_mbox_filter(filter_t * cf, mboxgrp_t * cg); |
30 |
|
31 |
void string_upper(char *str, size_t size); |
32 |
|
33 |
|
34 |
/* |
35 |
* Set new filter's variables to safe values. |
36 |
*/ |
37 |
void |
38 |
init_filter(filter_t * f) |
39 |
{ |
40 |
f->left = f->right = NULL; |
41 |
f->key[0] = '\0'; |
42 |
f->mode = FILTER_MODE_AND; |
43 |
f->action.type = 0; |
44 |
f->action.msgflags = 0; |
45 |
f->action.raccount = NULL; |
46 |
f->action.destmbox[0] = '\0'; |
47 |
f->action.args[0] = '\0'; |
48 |
f->masks = NULL; |
49 |
f->masknum = 0; |
50 |
f->masklen = 0; |
51 |
} |
52 |
|
53 |
|
54 |
/* |
55 |
* A filter entry was declared, create it and set it's variables accordingly. |
56 |
*/ |
57 |
int |
58 |
set_filter(char *line, regmatch_t * m) |
59 |
{ |
60 |
filter_t *f; |
61 |
|
62 |
if (curfltr != NULL && curfltr->action.type == 0) |
63 |
return ERROR_PARSER; |
64 |
|
65 |
f = (filter_t *) xmalloc(sizeof(filter_t)); |
66 |
|
67 |
init_filter(f); |
68 |
|
69 |
strncat(f->key, line + m[1].rm_so, |
70 |
min(m[1].rm_eo - m[1].rm_so, KEY_LEN - 1)); |
71 |
|
72 |
if (m[2].rm_so != -1) { |
73 |
if (!strncasecmp(line + m[2].rm_so + 1, "or", 2)) |
74 |
f->mode = FILTER_MODE_OR; |
75 |
else |
76 |
f->mode = FILTER_MODE_AND; |
77 |
} |
78 |
debug("filter: '%s' %s\n", f->key, |
79 |
(f->mode == FILTER_MODE_OR ? "or" : "and")); |
80 |
|
81 |
INSERT_TREE(filters, f, filter); |
82 |
|
83 |
curfltr = f; |
84 |
|
85 |
return 0; |
86 |
} |
87 |
|
88 |
|
89 |
/* |
90 |
* Assign an action to the last declared filter. |
91 |
*/ |
92 |
int |
93 |
set_action(char *line, regmatch_t * m) |
94 |
{ |
95 |
char *c, *cp, *t; |
96 |
account_t *a; |
97 |
|
98 |
if (curfltr == NULL) |
99 |
return ERROR_PARSER; |
100 |
|
101 |
if (!strncasecmp(line + m[1].rm_so, "delete", 6)) |
102 |
curfltr->action.type = ACTION_DELETE; |
103 |
else if (!strncasecmp(line + m[1].rm_so, "copy", 4)) { |
104 |
curfltr->action.type = ACTION_COPY; |
105 |
if (*(line + m[2].rm_so) == '"' && |
106 |
*(line + m[2].rm_eo - 1) == '"') |
107 |
strncat(curfltr->action.destmbox, |
108 |
line + m[2].rm_so + 1, |
109 |
min(m[2].rm_eo - m[2].rm_so - 2, |
110 |
MBOX_LEN - 1)); |
111 |
else |
112 |
strncat(curfltr->action.destmbox, line + m[2].rm_so, |
113 |
min(m[2].rm_eo - m[2].rm_so, MBOX_LEN - 1)); |
114 |
} else if (!strncasecmp(line + m[1].rm_so, "move", 4)) { |
115 |
curfltr->action.type = ACTION_MOVE; |
116 |
if (*(line + m[3].rm_so) == '"' && |
117 |
*(line + m[3].rm_eo - 1) == '"') |
118 |
strncat(curfltr->action.destmbox, |
119 |
line + m[3].rm_so + 1, |
120 |
min(m[3].rm_eo - m[3].rm_so - 2, |
121 |
MBOX_LEN - 1)); |
122 |
else |
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strncat(curfltr->action.destmbox, line + m[3].rm_so, |
124 |
min(m[3].rm_eo - m[3].rm_so, MBOX_LEN - 1)); |
125 |
} else if (!strncasecmp(line + m[1].rm_so, "rcopy", 5)) { |
126 |
curfltr->action.type = ACTION_RCOPY; |
127 |
for (a = accounts; a; a = a->next) |
128 |
if (!strncasecmp(line + m[4].rm_so, a->key, |
129 |
strlen(a->key))) |
130 |
curfltr->action.raccount = a; |
131 |
if (!curfltr->action.raccount) |
132 |
return ERROR_PARSER; |
133 |
|
134 |
if (*(line + m[5].rm_so) == '"' && |
135 |
*(line + m[5].rm_eo - 1) == '"') |
136 |
strncat(curfltr->action.destmbox, |
137 |
line + m[5].rm_so + 1, |
138 |
min(m[5].rm_eo - m[5].rm_so - 2, |
139 |
MBOX_LEN - 1)); |
140 |
else |
141 |
strncat(curfltr->action.destmbox, line + m[5].rm_so, |
142 |
min(m[5].rm_eo - m[5].rm_so, MBOX_LEN - 1)); |
143 |
} else if (!strncasecmp(line + m[1].rm_so, "rmove", 5)) { |
144 |
curfltr->action.type = ACTION_RMOVE; |
145 |
for (a = accounts; a; a = a->next) |
146 |
if (!strncasecmp(line + m[6].rm_so, a->key, |
147 |
strlen(a->key))) |
148 |
curfltr->action.raccount = a; |
149 |
if (!curfltr->action.raccount) |
150 |
return ERROR_PARSER; |
151 |
|
152 |
if (*(line + m[7].rm_so) == '"' && |
153 |
*(line + m[7].rm_eo - 1) == '"') |
154 |
strncat(curfltr->action.destmbox, |
155 |
line + m[7].rm_so + 1, |
156 |
min(m[7].rm_eo - m[7].rm_so - 2, |
157 |
MBOX_LEN - 1)); |
158 |
else |
159 |
strncat(curfltr->action.destmbox, line + m[7].rm_so, |
160 |
min(m[7].rm_eo - m[7].rm_so, MBOX_LEN - 1)); |
161 |
} else if (!strncasecmp(line + m[1].rm_so, "flag", 4)) { |
162 |
if (!strncasecmp(line + m[8].rm_so, "replace", 7)) |
163 |
curfltr->action.type = ACTION_FLAG_REPLACE; |
164 |
else if (!strncasecmp(line + m[8].rm_so, "add", 3)) |
165 |
curfltr->action.type = ACTION_FLAG_ADD; |
166 |
else |
167 |
curfltr->action.type = ACTION_FLAG_REMOVE; |
168 |
|
169 |
c = cp = (char *)malloc(m[9].rm_eo - m[9].rm_so + 1); |
170 |
xstrncpy(c, line + m[9].rm_so, m[9].rm_eo - m[9].rm_so); |
171 |
|
172 |
t = strtok_r(c, ",", &c); |
173 |
while (t) { |
174 |
if (!strcasecmp(t, "none")) { |
175 |
if (m[9].rm_eo - m[9].rm_so != strlen("none")) |
176 |
return ERROR_PARSER; |
177 |
} else if (!strcasecmp(t, "seen")) |
178 |
curfltr->action.msgflags |= MSG_FLAG_SEEN; |
179 |
else if (!strcasecmp(t, "answered")) |
180 |
curfltr->action.msgflags |= MSG_FLAG_ANSWERED; |
181 |
else if (!strcasecmp(t, "flagged")) |
182 |
curfltr->action.msgflags |= MSG_FLAG_FLAGGED; |
183 |
else if (!strcasecmp(t, "deleted")) |
184 |
curfltr->action.msgflags |= MSG_FLAG_DELETED; |
185 |
else if (!strcasecmp(t, "draft")) |
186 |
curfltr->action.msgflags |= MSG_FLAG_DRAFT; |
187 |
else |
188 |
return ERROR_PARSER; |
189 |
|
190 |
t = strtok_r(NULL, ",", &c); |
191 |
} |
192 |
xfree(cp); |
193 |
} else if (!strncasecmp(line + m[1].rm_so, "list", 4)) { |
194 |
curfltr->action.type = ACTION_LIST; |
195 |
} |
196 |
if (m[10].rm_so != -1) { |
197 |
strncat(curfltr->action.args, line + m[10].rm_so, |
198 |
min(m[10].rm_eo - m[10].rm_so, ARGS_LEN - 2)); |
199 |
while ((c = strchr(curfltr->action.args, ','))) |
200 |
*c = ' '; |
201 |
} |
202 |
debug("action: %d '%s' '%s' %d '%s'\n", |
203 |
curfltr->action.type, |
204 |
(curfltr->action.raccount ? curfltr->action.raccount->key : ""), |
205 |
curfltr->action.destmbox, |
206 |
curfltr->action.msgflags, |
207 |
curfltr->action.args); |
208 |
return 0; |
209 |
} |
210 |
|
211 |
|
212 |
/* |
213 |
* Set new mask's variables to safe values. |
214 |
*/ |
215 |
void |
216 |
init_mask(mask_t * m) |
217 |
{ |
218 |
m->next = NULL; |
219 |
m->body[0] = '\0'; |
220 |
m->type = 0; |
221 |
} |
222 |
|
223 |
|
224 |
/* |
225 |
* A new mask entry was declared, create it and set it's |
226 |
* variables accordingly. |
227 |
*/ |
228 |
int |
229 |
set_mask(char *line, regmatch_t * m, int mmt) |
230 |
{ |
231 |
int n, len; |
232 |
mask_t *k; |
233 |
char *bp; |
234 |
|
235 |
len = 0; |
236 |
|
237 |
if (curfltr == NULL) |
238 |
return ERROR_PARSER; |
239 |
|
240 |
k = (mask_t *) xmalloc(sizeof(mask_t)); |
241 |
|
242 |
init_mask(k); |
243 |
|
244 |
bp = k->body; |
245 |
|
246 |
/* If specified set mask's type. */ |
247 |
if (m[2].rm_so != -1 && curfltr->masks) { |
248 |
if (!strncasecmp(line + m[2].rm_so, "or", 2)) { |
249 |
k->type = MASK_TYPE_OR; |
250 |
} else |
251 |
k->type = MASK_TYPE_AND; |
252 |
} |
253 |
/* Add NOT if specified. */ |
254 |
if (m[3].rm_so != -1) { |
255 |
n = min(m[3].rm_eo - m[3].rm_so, |
256 |
MASK_BODY_LEN - (bp - k->body) - 1); |
257 |
xstrncpy(bp, line + m[3].rm_so, n); |
258 |
string_upper(bp, n); |
259 |
*(bp + n - 1) = ' '; /* In case it's '\t'. */ |
260 |
*(bp + n) = '\0'; |
261 |
bp += n; |
262 |
} |
263 |
/* Keyword of the search key. */ |
264 |
n = min(m[4].rm_eo - m[4].rm_so, |
265 |
MASK_BODY_LEN - (bp - k->body) - 3); |
266 |
xstrncpy(bp, line + m[4].rm_so, n); |
267 |
string_upper(bp, n); |
268 |
*(bp + n) = '\0'; |
269 |
bp += n; |
270 |
|
271 |
switch (mmt) { |
272 |
case MASK_MATCH_1: |
273 |
/* Mask is ANSWERED, DELETED, DRAFT, FLAGGED, NEW, OLD, etc. */ |
274 |
|
275 |
len = bp - k->body; |
276 |
|
277 |
break; |
278 |
|
279 |
case MASK_MATCH_2: |
280 |
/* Mask is BCC, BODY, CC, FROM, SUBJECT, TEXT, TO. */ |
281 |
|
282 |
*(bp++) = ' '; |
283 |
|
284 |
if (*(line + m[5].rm_so) != '"') |
285 |
*(bp++) = '"'; |
286 |
*bp = '\0'; |
287 |
|
288 |
n = min(m[5].rm_eo - m[5].rm_so, |
289 |
MASK_BODY_LEN - (bp - k->body) - 2); |
290 |
xstrncpy(bp, line + m[5].rm_so, n); |
291 |
*(bp + n) = '\0'; |
292 |
bp += n; |
293 |
|
294 |
if (*(line + m[5].rm_so) != '"') |
295 |
*(bp++) = '"'; |
296 |
*bp = '\0'; |
297 |
|
298 |
len = bp - k->body; |
299 |
|
300 |
break; |
301 |
|
302 |
case MASK_MATCH_3: |
303 |
/* Mask is HEADER. */ |
304 |
|
305 |
*(bp++) = ' '; |
306 |
|
307 |
if (*(line + m[5].rm_so) != '"') |
308 |
*(bp++) = '"'; |
309 |
*bp = '\0'; |
310 |
|
311 |
n = min(m[5].rm_eo - m[5].rm_so, |
312 |
MASK_BODY_LEN - (bp - k->body) - 2); |
313 |
xstrncpy(bp, line + m[5].rm_so, n); |
314 |
*(bp + n) = '\0'; |
315 |
bp += n; |
316 |
|
317 |
if (*(line + m[5].rm_so) != '"') |
318 |
*(bp++) = '"'; |
319 |
*bp = '\0'; |
320 |
|
321 |
*(bp++) = ' '; |
322 |
|
323 |
if (*(line + m[6].rm_so) != '"') |
324 |
*(bp++) = '"'; |
325 |
*bp = '\0'; |
326 |
|
327 |
n = min(m[6].rm_eo - m[6].rm_so, |
328 |
MASK_BODY_LEN - (bp - k->body) - 2); |
329 |
xstrncpy(bp, line + m[6].rm_so, n); |
330 |
*(bp + n) = '\0'; |
331 |
bp += n; |
332 |
|
333 |
if (*(line + m[6].rm_so) != '"') |
334 |
*(bp++) = '"'; |
335 |
*bp = '\0'; |
336 |
|
337 |
len = bp - k->body; |
338 |
|
339 |
break; |
340 |
|
341 |
case MASK_MATCH_4: |
342 |
/* Mask is LARGER, SMALLER, OLDER, NEWER. */ |
343 |
|
344 |
*(bp++) = ' '; |
345 |
|
346 |
n = min(m[5].rm_eo - m[5].rm_so, |
347 |
MASK_BODY_LEN - (bp - k->body) - 2); |
348 |
xstrncpy(bp, line + m[5].rm_so, n); |
349 |
*(bp + n) = '\0'; |
350 |
bp += n; |
351 |
*bp = '\0'; |
352 |
|
353 |
/* Mask length after conversion to IMAP4rev1 date format. */ |
354 |
if (strstr(k->body, "OLDER")) |
355 |
len = strlen("NOT BEFORE DD-MMM-YYYY"); |
356 |
else if (strstr(k->body, "NEWER")) |
357 |
len = strlen("NOT SINCE DD-MMM-YYYY"); |
358 |
else |
359 |
len = bp - k->body; |
360 |
|
361 |
break; |
362 |
default: |
363 |
break; |
364 |
} |
365 |
|
366 |
APPEND_LINKED_LIST(curfltr->masks, k, mask); |
367 |
|
368 |
curfltr->masknum++; |
369 |
curfltr->masklen += len; |
370 |
|
371 |
debug("mask: '%s'\n", k->body); |
372 |
|
373 |
return 0; |
374 |
} |
375 |
|
376 |
|
377 |
/* |
378 |
* A new job was declared, link filters with mailbox-groups. |
379 |
*/ |
380 |
int |
381 |
set_job(char *line, regmatch_t * match) |
382 |
{ |
383 |
int n; |
384 |
char *ftok, *gtok, *fltr, *mbgrp, *f, *g; |
385 |
filter_t *cf; |
386 |
mboxgrp_t *cg; |
387 |
|
388 |
if (accounts == NULL || filters == NULL || curfltr->action.type == 0) |
389 |
return ERROR_PARSER; |
390 |
|
391 |
n = match[1].rm_eo - match[1].rm_so; |
392 |
fltr = (char *)xmalloc(n + 1); |
393 |
|
394 |
f = xstrncpy(fltr, line + match[1].rm_so, n); |
395 |
f[n] = '\0'; |
396 |
|
397 |
n = match[2].rm_eo - match[2].rm_so; |
398 |
mbgrp = (char *)xmalloc(n + 1); |
399 |
|
400 |
/* Go through filters. */ |
401 |
ftok = strtok_r(f, ",", &f); |
402 |
while (ftok != NULL) { |
403 |
FIND_TREE(filters, ftok, cf); |
404 |
if (cf == NULL) |
405 |
return ERROR_PARSER; |
406 |
|
407 |
g = xstrncpy(mbgrp, line + match[2].rm_so, n); |
408 |
g[n] = '\0'; |
409 |
|
410 |
/* Go through mailbox groups. */ |
411 |
gtok = strtok_r(g, ",", &g); |
412 |
while (gtok != NULL) { |
413 |
FIND_TREE(mboxgrps, gtok, cg); |
414 |
if (cg == NULL) |
415 |
return ERROR_PARSER; |
416 |
link_mbox_filter(cf, cg); |
417 |
|
418 |
gtok = strtok_r(NULL, ",", &g); |
419 |
} |
420 |
|
421 |
ftok = strtok_r(NULL, ",", &f); |
422 |
} |
423 |
|
424 |
xfree(fltr); |
425 |
xfree(mbgrp); |
426 |
|
427 |
return 0; |
428 |
} |
429 |
|
430 |
|
431 |
/* |
432 |
* Link a filter with a mailbox. |
433 |
*/ |
434 |
void |
435 |
link_mbox_filter(filter_t * cf, mboxgrp_t * cg) |
436 |
{ |
437 |
int i, j, f; |
438 |
|
439 |
for (i = 0; cg->mboxes[i] != NULL; i++) { |
440 |
for (f = j = 0; cg->mboxes[i]->filters[j] != NULL; j++) |
441 |
if (j == MBOX_FILTERS_MAX - 1 || |
442 |
!strcmp(cf->key, cg->mboxes[i]->filters[j]->key)) |
443 |
f = 1; |
444 |
|
445 |
if (f) |
446 |
continue; |
447 |
|
448 |
cg->mboxes[i]->filters[j] = cf; |
449 |
cg->mboxes[i]->filters[j + 1] = NULL; |
450 |
|
451 |
} |
452 |
|
453 |
debug("job: '%s' '%s'\n", cf->key, cg->key); |
454 |
} |
455 |
|
456 |
|
457 |
/* |
458 |
* Convert a string of specified size to upper case. |
459 |
*/ |
460 |
void |
461 |
string_upper(char *str, size_t size) |
462 |
{ |
463 |
unsigned int i; |
464 |
|
465 |
for (i = 0; i < size; i++, str++) |
466 |
*str = toupper(*str); |
467 |
} |