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 |
|
41 |
f->left = f->right = NULL; |
42 |
f->key[0] = '\0'; |
43 |
f->mode = FILTER_MODE_AND; |
44 |
f->action.type = 0; |
45 |
f->action.msgflags = 0; |
46 |
f->action.raccount = NULL; |
47 |
f->action.destmbox[0] = '\0'; |
48 |
f->action.args[0] = '\0'; |
49 |
f->masks = NULL; |
50 |
f->masknum = 0; |
51 |
f->masklen = 0; |
52 |
} |
53 |
|
54 |
|
55 |
/* |
56 |
* A filter entry was declared, create it and set it's variables accordingly. |
57 |
*/ |
58 |
int |
59 |
set_filter(char *line, regmatch_t * m) |
60 |
{ |
61 |
filter_t *f; |
62 |
|
63 |
if (curfltr != NULL && curfltr->action.type == 0) |
64 |
return ERROR_PARSER; |
65 |
|
66 |
f = (filter_t *) xmalloc(sizeof(filter_t)); |
67 |
|
68 |
init_filter(f); |
69 |
|
70 |
strncat(f->key, line + m[1].rm_so, min(m[1].rm_eo - m[1].rm_so, |
71 |
KEY_LEN - 1)); |
72 |
|
73 |
if (m[2].rm_so != -1) { |
74 |
if (!strncasecmp(line + m[2].rm_so + 1, "or", 2)) |
75 |
f->mode = FILTER_MODE_OR; |
76 |
else |
77 |
f->mode = FILTER_MODE_AND; |
78 |
} |
79 |
debug("filter: '%s' %s\n", f->key, |
80 |
(f->mode == FILTER_MODE_OR ? "or" : "and")); |
81 |
|
82 |
INSERT_TREE(filters, f, filter); |
83 |
|
84 |
curfltr = f; |
85 |
|
86 |
return 0; |
87 |
} |
88 |
|
89 |
|
90 |
/* |
91 |
* Assign an action to the last declared filter. |
92 |
*/ |
93 |
int |
94 |
set_action(char *line, regmatch_t * m) |
95 |
{ |
96 |
char *c, *cp, *t; |
97 |
account_t *a; |
98 |
|
99 |
if (curfltr == NULL) |
100 |
return ERROR_PARSER; |
101 |
|
102 |
if (!strncasecmp(line + m[1].rm_so, "delete", 6)) |
103 |
curfltr->action.type = ACTION_DELETE; |
104 |
else if (!strncasecmp(line + m[1].rm_so, "copy", 4)) { |
105 |
curfltr->action.type = ACTION_COPY; |
106 |
if (*(line + m[2].rm_so) == '"' && |
107 |
*(line + m[2].rm_eo - 1) == '"') |
108 |
strncat(curfltr->action.destmbox, |
109 |
line + m[2].rm_so + 1, |
110 |
min(m[2].rm_eo - m[2].rm_so - 2, |
111 |
MBOX_LEN - 1)); |
112 |
else |
113 |
strncat(curfltr->action.destmbox, line + m[2].rm_so, |
114 |
min(m[2].rm_eo - m[2].rm_so, MBOX_LEN - 1)); |
115 |
} else if (!strncasecmp(line + m[1].rm_so, "move", 4)) { |
116 |
curfltr->action.type = ACTION_MOVE; |
117 |
if (*(line + m[3].rm_so) == '"' && |
118 |
*(line + m[3].rm_eo - 1) == '"') |
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strncat(curfltr->action.destmbox, |
120 |
line + m[3].rm_so + 1, |
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min(m[3].rm_eo - m[3].rm_so - 2, |
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MBOX_LEN - 1)); |
123 |
else |
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strncat(curfltr->action.destmbox, line + m[3].rm_so, |
125 |
min(m[3].rm_eo - m[3].rm_so, MBOX_LEN - 1)); |
126 |
} else if (!strncasecmp(line + m[1].rm_so, "rcopy", 5)) { |
127 |
curfltr->action.type = ACTION_RCOPY; |
128 |
for (a = accounts; a; a = a->next) |
129 |
if (!strncasecmp(line + m[4].rm_so, a->key, |
130 |
strlen(a->key))) |
131 |
curfltr->action.raccount = a; |
132 |
if (!curfltr->action.raccount) |
133 |
return ERROR_PARSER; |
134 |
|
135 |
if (*(line + m[5].rm_so) == '"' && |
136 |
*(line + m[5].rm_eo - 1) == '"') |
137 |
strncat(curfltr->action.destmbox, |
138 |
line + m[5].rm_so + 1, |
139 |
min(m[5].rm_eo - m[5].rm_so - 2, |
140 |
MBOX_LEN - 1)); |
141 |
else |
142 |
strncat(curfltr->action.destmbox, line + m[5].rm_so, |
143 |
min(m[5].rm_eo - m[5].rm_so, MBOX_LEN - 1)); |
144 |
} else if (!strncasecmp(line + m[1].rm_so, "rmove", 5)) { |
145 |
curfltr->action.type = ACTION_RMOVE; |
146 |
for (a = accounts; a; a = a->next) |
147 |
if (!strncasecmp(line + m[6].rm_so, a->key, |
148 |
strlen(a->key))) |
149 |
curfltr->action.raccount = a; |
150 |
if (!curfltr->action.raccount) |
151 |
return ERROR_PARSER; |
152 |
|
153 |
if (*(line + m[7].rm_so) == '"' && |
154 |
*(line + m[7].rm_eo - 1) == '"') |
155 |
strncat(curfltr->action.destmbox, |
156 |
line + m[7].rm_so + 1, |
157 |
min(m[7].rm_eo - m[7].rm_so - 2, |
158 |
MBOX_LEN - 1)); |
159 |
else |
160 |
strncat(curfltr->action.destmbox, line + m[7].rm_so, |
161 |
min(m[7].rm_eo - m[7].rm_so, MBOX_LEN - 1)); |
162 |
} else if (!strncasecmp(line + m[1].rm_so, "flag", 4)) { |
163 |
if (!strncasecmp(line + m[8].rm_so, "replace", 7)) |
164 |
curfltr->action.type = ACTION_FLAG_REPLACE; |
165 |
else if (!strncasecmp(line + m[8].rm_so, "add", 3)) |
166 |
curfltr->action.type = ACTION_FLAG_ADD; |
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else |
168 |
curfltr->action.type = ACTION_FLAG_REMOVE; |
169 |
|
170 |
c = cp = (char *)malloc(m[9].rm_eo - m[9].rm_so + 1); |
171 |
xstrncpy(c, line + m[9].rm_so, m[9].rm_eo - m[9].rm_so); |
172 |
|
173 |
t = strtok_r(c, ",", &c); |
174 |
while (t) { |
175 |
if (!strcasecmp(t, "none")) { |
176 |
if (m[9].rm_eo - m[9].rm_so != strlen("none")) |
177 |
return ERROR_PARSER; |
178 |
} else if (!strcasecmp(t, "seen")) |
179 |
curfltr->action.msgflags |= MSG_FLAG_SEEN; |
180 |
else if (!strcasecmp(t, "answered")) |
181 |
curfltr->action.msgflags |= MSG_FLAG_ANSWERED; |
182 |
else if (!strcasecmp(t, "flagged")) |
183 |
curfltr->action.msgflags |= MSG_FLAG_FLAGGED; |
184 |
else if (!strcasecmp(t, "deleted")) |
185 |
curfltr->action.msgflags |= MSG_FLAG_DELETED; |
186 |
else if (!strcasecmp(t, "draft")) |
187 |
curfltr->action.msgflags |= MSG_FLAG_DRAFT; |
188 |
else |
189 |
return ERROR_PARSER; |
190 |
|
191 |
t = strtok_r(NULL, ",", &c); |
192 |
} |
193 |
xfree(cp); |
194 |
} else if (!strncasecmp(line + m[1].rm_so, "list", 4)) { |
195 |
curfltr->action.type = ACTION_LIST; |
196 |
} |
197 |
if (m[10].rm_so != -1) { |
198 |
strncat(curfltr->action.args, line + m[10].rm_so, |
199 |
min(m[10].rm_eo - m[10].rm_so, ARGS_LEN - 2)); |
200 |
while ((c = strchr(curfltr->action.args, ','))) |
201 |
*c = ' '; |
202 |
} |
203 |
debug("action: %d '%s' '%s' %d '%s'\n", |
204 |
curfltr->action.type, |
205 |
(curfltr->action.raccount ? curfltr->action.raccount->key : ""), |
206 |
curfltr->action.destmbox, |
207 |
curfltr->action.msgflags, |
208 |
curfltr->action.args); |
209 |
return 0; |
210 |
} |
211 |
|
212 |
|
213 |
/* |
214 |
* Set new mask's variables to safe values. |
215 |
*/ |
216 |
void |
217 |
init_mask(mask_t * m) |
218 |
{ |
219 |
|
220 |
m->next = NULL; |
221 |
m->body[0] = '\0'; |
222 |
m->type = 0; |
223 |
} |
224 |
|
225 |
|
226 |
/* |
227 |
* A new mask entry was declared, create it and set it's variables accordingly. |
228 |
*/ |
229 |
int |
230 |
set_mask(char *line, regmatch_t * m, int mmt) |
231 |
{ |
232 |
int n, len; |
233 |
mask_t *k; |
234 |
char *bp; |
235 |
|
236 |
len = 0; |
237 |
|
238 |
if (curfltr == NULL) |
239 |
return ERROR_PARSER; |
240 |
|
241 |
k = (mask_t *) xmalloc(sizeof(mask_t)); |
242 |
|
243 |
init_mask(k); |
244 |
|
245 |
bp = k->body; |
246 |
|
247 |
/* If specified set mask's type. */ |
248 |
if (m[2].rm_so != -1 && curfltr->masks) { |
249 |
if (!strncasecmp(line + m[2].rm_so, "or", 2)) { |
250 |
k->type = MASK_TYPE_OR; |
251 |
} else |
252 |
k->type = MASK_TYPE_AND; |
253 |
} |
254 |
/* Add NOT if specified. */ |
255 |
if (m[3].rm_so != -1) { |
256 |
n = min(m[3].rm_eo - m[3].rm_so, |
257 |
MASK_BODY_LEN - (bp - k->body) - 1); |
258 |
xstrncpy(bp, line + m[3].rm_so, n); |
259 |
string_upper(bp, n); |
260 |
*(bp + n - 1) = ' '; /* In case it's '\t'. */ |
261 |
*(bp + n) = '\0'; |
262 |
bp += n; |
263 |
} |
264 |
/* Keyword of the search key. */ |
265 |
n = min(m[4].rm_eo - m[4].rm_so, |
266 |
MASK_BODY_LEN - (bp - k->body) - 3); |
267 |
xstrncpy(bp, line + m[4].rm_so, n); |
268 |
string_upper(bp, n); |
269 |
*(bp + n) = '\0'; |
270 |
bp += n; |
271 |
|
272 |
switch (mmt) { |
273 |
case MASK_MATCH_1: |
274 |
/* Mask is ANSWERED, DELETED, DRAFT, FLAGGED, NEW, OLD, etc. */ |
275 |
|
276 |
len = bp - k->body; |
277 |
|
278 |
break; |
279 |
|
280 |
case MASK_MATCH_2: |
281 |
/* Mask is BCC, BODY, CC, FROM, SUBJECT, TEXT, TO. */ |
282 |
|
283 |
*(bp++) = ' '; |
284 |
|
285 |
if (*(line + m[5].rm_so) != '"') |
286 |
*(bp++) = '"'; |
287 |
*bp = '\0'; |
288 |
|
289 |
n = min(m[5].rm_eo - m[5].rm_so, |
290 |
MASK_BODY_LEN - (bp - k->body) - 2); |
291 |
xstrncpy(bp, line + m[5].rm_so, n); |
292 |
*(bp + n) = '\0'; |
293 |
bp += n; |
294 |
|
295 |
if (*(line + m[5].rm_so) != '"') |
296 |
*(bp++) = '"'; |
297 |
*bp = '\0'; |
298 |
|
299 |
len = bp - k->body; |
300 |
|
301 |
break; |
302 |
|
303 |
case MASK_MATCH_3: |
304 |
/* Mask is HEADER. */ |
305 |
|
306 |
*(bp++) = ' '; |
307 |
|
308 |
if (*(line + m[5].rm_so) != '"') |
309 |
*(bp++) = '"'; |
310 |
*bp = '\0'; |
311 |
|
312 |
n = min(m[5].rm_eo - m[5].rm_so, |
313 |
MASK_BODY_LEN - (bp - k->body) - 2); |
314 |
xstrncpy(bp, line + m[5].rm_so, n); |
315 |
*(bp + n) = '\0'; |
316 |
bp += n; |
317 |
|
318 |
if (*(line + m[5].rm_so) != '"') |
319 |
*(bp++) = '"'; |
320 |
*bp = '\0'; |
321 |
|
322 |
*(bp++) = ' '; |
323 |
|
324 |
if (*(line + m[6].rm_so) != '"') |
325 |
*(bp++) = '"'; |
326 |
*bp = '\0'; |
327 |
|
328 |
n = min(m[6].rm_eo - m[6].rm_so, |
329 |
MASK_BODY_LEN - (bp - k->body) - 2); |
330 |
xstrncpy(bp, line + m[6].rm_so, n); |
331 |
*(bp + n) = '\0'; |
332 |
bp += n; |
333 |
|
334 |
if (*(line + m[6].rm_so) != '"') |
335 |
*(bp++) = '"'; |
336 |
*bp = '\0'; |
337 |
|
338 |
len = bp - k->body; |
339 |
|
340 |
break; |
341 |
|
342 |
case MASK_MATCH_4: |
343 |
/* Mask is LARGER, SMALLER, OLDER, NEWER. */ |
344 |
|
345 |
*(bp++) = ' '; |
346 |
|
347 |
n = min(m[5].rm_eo - m[5].rm_so, |
348 |
MASK_BODY_LEN - (bp - k->body) - 2); |
349 |
xstrncpy(bp, line + m[5].rm_so, n); |
350 |
*(bp + n) = '\0'; |
351 |
bp += n; |
352 |
*bp = '\0'; |
353 |
|
354 |
/* Mask length after conversion to IMAP4rev1 date format. */ |
355 |
if (strstr(k->body, "OLDER")) |
356 |
len = strlen("NOT BEFORE DD-MMM-YYYY"); |
357 |
else if (strstr(k->body, "NEWER")) |
358 |
len = strlen("NOT SINCE DD-MMM-YYYY"); |
359 |
else |
360 |
len = bp - k->body; |
361 |
|
362 |
break; |
363 |
default: |
364 |
break; |
365 |
} |
366 |
|
367 |
APPEND_LINKED_LIST(curfltr->masks, k, mask); |
368 |
|
369 |
curfltr->masknum++; |
370 |
curfltr->masklen += len; |
371 |
|
372 |
debug("mask: '%s'\n", k->body); |
373 |
|
374 |
return 0; |
375 |
} |
376 |
|
377 |
|
378 |
/* |
379 |
* A new job was declared, link filters with mailbox-groups. |
380 |
*/ |
381 |
int |
382 |
set_job(char *line, regmatch_t * match) |
383 |
{ |
384 |
int n; |
385 |
char *ftok, *gtok, *fltr, *mbgrp, *f, *g; |
386 |
filter_t *cf; |
387 |
mboxgrp_t *cg; |
388 |
|
389 |
if (accounts == NULL || filters == NULL || curfltr->action.type == 0) |
390 |
return ERROR_PARSER; |
391 |
|
392 |
n = match[1].rm_eo - match[1].rm_so; |
393 |
fltr = (char *)xmalloc(n + 1); |
394 |
|
395 |
f = xstrncpy(fltr, line + match[1].rm_so, n); |
396 |
f[n] = '\0'; |
397 |
|
398 |
n = match[2].rm_eo - match[2].rm_so; |
399 |
mbgrp = (char *)xmalloc(n + 1); |
400 |
|
401 |
/* Go through filters. */ |
402 |
ftok = strtok_r(f, ",", &f); |
403 |
while (ftok != NULL) { |
404 |
FIND_TREE(filters, ftok, cf); |
405 |
if (cf == NULL) |
406 |
return ERROR_PARSER; |
407 |
|
408 |
g = xstrncpy(mbgrp, line + match[2].rm_so, n); |
409 |
g[n] = '\0'; |
410 |
|
411 |
/* Go through mailbox groups. */ |
412 |
gtok = strtok_r(g, ",", &g); |
413 |
while (gtok != NULL) { |
414 |
FIND_TREE(mboxgrps, gtok, cg); |
415 |
if (cg == NULL) |
416 |
return ERROR_PARSER; |
417 |
link_mbox_filter(cf, cg); |
418 |
|
419 |
gtok = strtok_r(NULL, ",", &g); |
420 |
} |
421 |
|
422 |
ftok = strtok_r(NULL, ",", &f); |
423 |
} |
424 |
|
425 |
xfree(fltr); |
426 |
xfree(mbgrp); |
427 |
|
428 |
return 0; |
429 |
} |
430 |
|
431 |
|
432 |
/* |
433 |
* Link a filter with a mailbox. |
434 |
*/ |
435 |
void |
436 |
link_mbox_filter(filter_t * cf, mboxgrp_t * cg) |
437 |
{ |
438 |
int i, j, f; |
439 |
|
440 |
for (i = 0; cg->mboxes[i] != NULL; i++) { |
441 |
for (f = j = 0; cg->mboxes[i]->filters[j] != NULL; j++) |
442 |
if (j == MBOX_FILTERS_MAX - 1 || |
443 |
!strcmp(cf->key, cg->mboxes[i]->filters[j]->key)) |
444 |
f = 1; |
445 |
|
446 |
if (f) |
447 |
continue; |
448 |
|
449 |
cg->mboxes[i]->filters[j] = cf; |
450 |
cg->mboxes[i]->filters[j + 1] = NULL; |
451 |
|
452 |
} |
453 |
|
454 |
debug("job: '%s' '%s'\n", cf->key, cg->key); |
455 |
} |
456 |
|
457 |
|
458 |
/* |
459 |
* Convert a string of specified size to upper case. |
460 |
*/ |
461 |
void |
462 |
string_upper(char *str, size_t size) |
463 |
{ |
464 |
unsigned int i; |
465 |
|
466 |
for (i = 0; i < size; i++, str++) |
467 |
*str = toupper(*str); |
468 |
} |