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 *cur_fltr = NULL; /* Current filter. */ |
23 |
|
24 |
|
25 |
void init_filter(filter_t * node); |
26 |
|
27 |
void init_mask(mask_t * node); |
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 * node) |
39 |
{ |
40 |
node->left = node->right = NULL; |
41 |
node->key[0] = '\0'; |
42 |
node->mode = FILTER_MODE_AND; |
43 |
node->action.type = node->action.msgflags = 0; |
44 |
node->action.raccount = NULL; |
45 |
node->action.destmbox[0] = node->action.args[0] = '\0'; |
46 |
node->masks = NULL; |
47 |
node->masknum = node->masklen = 0; |
48 |
} |
49 |
|
50 |
|
51 |
/* |
52 |
* A filter entry was declared, create it and set it's variables accordingly. |
53 |
*/ |
54 |
int |
55 |
set_filter(char *line, regmatch_t * m) |
56 |
{ |
57 |
filter_t *node; |
58 |
|
59 |
if (cur_fltr != NULL && cur_fltr->action.type == 0) |
60 |
return ERROR_CONFIG_PARSE; |
61 |
|
62 |
node = (filter_t *) xmalloc(sizeof(filter_t)); |
63 |
|
64 |
init_filter(node); |
65 |
|
66 |
strncat(node->key, line + m[1].rm_so, |
67 |
min(m[1].rm_eo - m[1].rm_so, KEY_LEN - 1)); |
68 |
|
69 |
if (m[2].rm_so != -1) { |
70 |
if (!strncasecmp(line + m[2].rm_so + 1, "or", 2)) |
71 |
node->mode = FILTER_MODE_OR; |
72 |
else |
73 |
node->mode = FILTER_MODE_AND; |
74 |
} |
75 |
#ifdef DEBUG |
76 |
fprintf(stderr, "debug: FILTER: '%s' %s\n", node->key, |
77 |
(node->mode == FILTER_MODE_OR ? "OR" : "AND")); |
78 |
#endif |
79 |
|
80 |
INSERT_TREE(filters, node, filter); |
81 |
|
82 |
cur_fltr = node; |
83 |
|
84 |
return 0; |
85 |
} |
86 |
|
87 |
|
88 |
/* |
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* Assign an action to the last declared filter. |
90 |
*/ |
91 |
int |
92 |
set_action(char *line, regmatch_t * m) |
93 |
{ |
94 |
char *c, *cp, *t; |
95 |
account_t *a; |
96 |
|
97 |
if (cur_fltr == NULL) |
98 |
return ERROR_CONFIG_PARSE; |
99 |
|
100 |
if (!strncasecmp(line + m[1].rm_so, "delete", 6)) |
101 |
cur_fltr->action.type = FILTER_ACTION_DELETE; |
102 |
else if (!strncasecmp(line + m[1].rm_so, "copy", 4)) { |
103 |
cur_fltr->action.type = FILTER_ACTION_COPY; |
104 |
if (*(line + m[2].rm_so) == '"' && |
105 |
*(line + m[2].rm_eo - 1) == '"') |
106 |
strncat(cur_fltr->action.destmbox, |
107 |
line + m[2].rm_so + 1, |
108 |
min(m[2].rm_eo - m[2].rm_so - 2, |
109 |
MBOX_NAME_LEN - 1)); |
110 |
else |
111 |
strncat(cur_fltr->action.destmbox, line + m[2].rm_so, |
112 |
min(m[2].rm_eo - m[2].rm_so, MBOX_NAME_LEN - 1)); |
113 |
} else if (!strncasecmp(line + m[1].rm_so, "move", 4)) { |
114 |
cur_fltr->action.type = FILTER_ACTION_MOVE; |
115 |
if (*(line + m[3].rm_so) == '"' && |
116 |
*(line + m[3].rm_eo - 1) == '"') |
117 |
strncat(cur_fltr->action.destmbox, |
118 |
line + m[3].rm_so + 1, |
119 |
min(m[3].rm_eo - m[3].rm_so - 2, |
120 |
MBOX_NAME_LEN - 1)); |
121 |
else |
122 |
strncat(cur_fltr->action.destmbox, line + m[3].rm_so, |
123 |
min(m[3].rm_eo - m[3].rm_so, MBOX_NAME_LEN - 1)); |
124 |
} else if (!strncasecmp(line + m[1].rm_so, "rcopy", 5)) { |
125 |
cur_fltr->action.type = FILTER_ACTION_RCOPY; |
126 |
for (a = accounts; a; a = a->next) |
127 |
if (!strncasecmp(line + m[4].rm_so, a->key, |
128 |
strlen(a->key))) |
129 |
cur_fltr->action.raccount = a; |
130 |
if (!cur_fltr->action.raccount) |
131 |
return ERROR_CONFIG_PARSE; |
132 |
|
133 |
if (*(line + m[5].rm_so) == '"' && |
134 |
*(line + m[5].rm_eo - 1) == '"') |
135 |
strncat(cur_fltr->action.destmbox, |
136 |
line + m[5].rm_so + 1, |
137 |
min(m[5].rm_eo - m[5].rm_so - 2, |
138 |
MBOX_NAME_LEN - 1)); |
139 |
else |
140 |
strncat(cur_fltr->action.destmbox, line + m[5].rm_so, |
141 |
min(m[5].rm_eo - m[5].rm_so, MBOX_NAME_LEN - 1)); |
142 |
} else if (!strncasecmp(line + m[1].rm_so, "rmove", 5)) { |
143 |
cur_fltr->action.type = FILTER_ACTION_RMOVE; |
144 |
for (a = accounts; a; a = a->next) |
145 |
if (!strncasecmp(line + m[6].rm_so, a->key, |
146 |
strlen(a->key))) |
147 |
cur_fltr->action.raccount = a; |
148 |
if (!cur_fltr->action.raccount) |
149 |
return ERROR_CONFIG_PARSE; |
150 |
|
151 |
if (*(line + m[7].rm_so) == '"' && |
152 |
*(line + m[7].rm_eo - 1) == '"') |
153 |
strncat(cur_fltr->action.destmbox, |
154 |
line + m[7].rm_so + 1, |
155 |
min(m[7].rm_eo - m[7].rm_so - 2, |
156 |
MBOX_NAME_LEN - 1)); |
157 |
else |
158 |
strncat(cur_fltr->action.destmbox, line + m[7].rm_so, |
159 |
min(m[7].rm_eo - m[7].rm_so, MBOX_NAME_LEN - 1)); |
160 |
} else if (!strncasecmp(line + m[1].rm_so, "flag", 4)) { |
161 |
if (!strncasecmp(line + m[8].rm_so, "replace", 7)) |
162 |
cur_fltr->action.type = FILTER_ACTION_FLAG_REPLACE; |
163 |
else if (!strncasecmp(line + m[8].rm_so, "add", 3)) |
164 |
cur_fltr->action.type = FILTER_ACTION_FLAG_ADD; |
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else |
166 |
cur_fltr->action.type = FILTER_ACTION_FLAG_REMOVE; |
167 |
|
168 |
c = cp = (char *)malloc(m[9].rm_eo - m[9].rm_so + 1); |
169 |
xstrncpy(c, line + m[9].rm_so, m[9].rm_eo - m[9].rm_so); |
170 |
|
171 |
t = strtok_r(c, ",", &c); |
172 |
while (t) { |
173 |
if (!strcasecmp(t, "none")) { |
174 |
if (m[9].rm_eo - m[9].rm_so != strlen("none")) |
175 |
return ERROR_CONFIG_PARSE; |
176 |
} else if (!strcasecmp(t, "seen")) |
177 |
cur_fltr->action.msgflags |= MESSAGE_FLAG_SEEN; |
178 |
else if (!strcasecmp(t, "answered")) |
179 |
cur_fltr->action.msgflags |= |
180 |
MESSAGE_FLAG_ANSWERED; |
181 |
else if (!strcasecmp(t, "flagged")) |
182 |
cur_fltr->action.msgflags |= |
183 |
MESSAGE_FLAG_FLAGGED; |
184 |
else if (!strcasecmp(t, "deleted")) |
185 |
cur_fltr->action.msgflags |= |
186 |
MESSAGE_FLAG_DELETED; |
187 |
else if (!strcasecmp(t, "draft")) |
188 |
cur_fltr->action.msgflags |= MESSAGE_FLAG_DRAFT; |
189 |
else |
190 |
return ERROR_CONFIG_PARSE; |
191 |
|
192 |
t = strtok_r(NULL, ",", &c); |
193 |
} |
194 |
xfree(cp); |
195 |
} else if (!strncasecmp(line + m[1].rm_so, "list", 4)) { |
196 |
cur_fltr->action.type = FILTER_ACTION_LIST; |
197 |
} |
198 |
if (m[10].rm_so != -1) { |
199 |
strncat(cur_fltr->action.args, line + m[10].rm_so, |
200 |
min(m[10].rm_eo - m[10].rm_so, ARGS_LEN - 2)); |
201 |
while ((c = strchr(cur_fltr->action.args, ','))) |
202 |
*c = ' '; |
203 |
} |
204 |
#ifdef DEBUG |
205 |
fprintf(stderr, "debug: ACTION: %d '%s' '%s' %d '%s'\n", |
206 |
cur_fltr->action.type, |
207 |
(cur_fltr->action.raccount ? cur_fltr->action.raccount->key : ""), |
208 |
cur_fltr->action.destmbox, |
209 |
cur_fltr->action.msgflags, |
210 |
cur_fltr->action.args); |
211 |
#endif |
212 |
return 0; |
213 |
} |
214 |
|
215 |
|
216 |
/* |
217 |
* Set new mask's variables to safe values. |
218 |
*/ |
219 |
void |
220 |
init_mask(mask_t * node) |
221 |
{ |
222 |
node->next = NULL; |
223 |
node->body[0] = '\0'; |
224 |
node->type = 0; |
225 |
} |
226 |
|
227 |
|
228 |
/* |
229 |
* A new mask entry was declared, create it and set it's |
230 |
* variables accordingly. |
231 |
*/ |
232 |
int |
233 |
set_mask(char *line, regmatch_t * m, int mmt) |
234 |
{ |
235 |
int n, len; |
236 |
mask_t *node; |
237 |
char *bp; |
238 |
|
239 |
len = 0; |
240 |
|
241 |
if (cur_fltr == NULL) |
242 |
return ERROR_CONFIG_PARSE; |
243 |
|
244 |
node = (mask_t *) xmalloc(sizeof(mask_t)); |
245 |
|
246 |
init_mask(node); |
247 |
|
248 |
bp = node->body; |
249 |
|
250 |
/* If specified set mask's type. */ |
251 |
if (m[2].rm_so != -1 && cur_fltr->masks) { |
252 |
if (!strncasecmp(line + m[2].rm_so, "or", 2)) { |
253 |
node->type = MASK_TYPE_OR; |
254 |
} else |
255 |
node->type = MASK_TYPE_AND; |
256 |
} |
257 |
/* Add NOT if specified. */ |
258 |
if (m[3].rm_so != -1) { |
259 |
n = min(m[3].rm_eo - m[3].rm_so, |
260 |
MASK_BODY_LEN - (bp - node->body) - 1); |
261 |
xstrncpy(bp, line + m[3].rm_so, n); |
262 |
string_upper(bp, n); |
263 |
*(bp + n - 1) = ' '; /* In case it's '\t'. */ |
264 |
*(bp + n) = '\0'; |
265 |
bp += n; |
266 |
} |
267 |
/* Keyword of the search key. */ |
268 |
n = min(m[4].rm_eo - m[4].rm_so, |
269 |
MASK_BODY_LEN - (bp - node->body) - 3); |
270 |
xstrncpy(bp, line + m[4].rm_so, n); |
271 |
string_upper(bp, n); |
272 |
*(bp + n) = '\0'; |
273 |
bp += n; |
274 |
|
275 |
switch (mmt) { |
276 |
case MASK_MATCH_1: |
277 |
/* Mask is ANSWERED, DELETED, DRAFT, FLAGGED, NEW, OLD, etc. */ |
278 |
|
279 |
len = bp - node->body; |
280 |
|
281 |
break; |
282 |
|
283 |
case MASK_MATCH_2: |
284 |
/* Mask is BCC, BODY, CC, FROM, SUBJECT, TEXT, TO. */ |
285 |
|
286 |
*(bp++) = ' '; |
287 |
|
288 |
if (*(line + m[5].rm_so) != '"') |
289 |
*(bp++) = '"'; |
290 |
*bp = '\0'; |
291 |
|
292 |
n = min(m[5].rm_eo - m[5].rm_so, |
293 |
MASK_BODY_LEN - (bp - node->body) - 2); |
294 |
xstrncpy(bp, line + m[5].rm_so, n); |
295 |
*(bp + n) = '\0'; |
296 |
bp += n; |
297 |
|
298 |
if (*(line + m[5].rm_so) != '"') |
299 |
*(bp++) = '"'; |
300 |
*bp = '\0'; |
301 |
|
302 |
len = bp - node->body; |
303 |
|
304 |
break; |
305 |
|
306 |
case MASK_MATCH_3: |
307 |
/* Mask is HEADER. */ |
308 |
|
309 |
*(bp++) = ' '; |
310 |
|
311 |
if (*(line + m[5].rm_so) != '"') |
312 |
*(bp++) = '"'; |
313 |
*bp = '\0'; |
314 |
|
315 |
n = min(m[5].rm_eo - m[5].rm_so, |
316 |
MASK_BODY_LEN - (bp - node->body) - 2); |
317 |
xstrncpy(bp, line + m[5].rm_so, n); |
318 |
*(bp + n) = '\0'; |
319 |
bp += n; |
320 |
|
321 |
if (*(line + m[5].rm_so) != '"') |
322 |
*(bp++) = '"'; |
323 |
*bp = '\0'; |
324 |
|
325 |
*(bp++) = ' '; |
326 |
|
327 |
if (*(line + m[6].rm_so) != '"') |
328 |
*(bp++) = '"'; |
329 |
*bp = '\0'; |
330 |
|
331 |
n = min(m[6].rm_eo - m[6].rm_so, |
332 |
MASK_BODY_LEN - (bp - node->body) - 2); |
333 |
xstrncpy(bp, line + m[6].rm_so, n); |
334 |
*(bp + n) = '\0'; |
335 |
bp += n; |
336 |
|
337 |
if (*(line + m[6].rm_so) != '"') |
338 |
*(bp++) = '"'; |
339 |
*bp = '\0'; |
340 |
|
341 |
len = bp - node->body; |
342 |
|
343 |
break; |
344 |
|
345 |
case MASK_MATCH_4: |
346 |
/* Mask is LARGER, SMALLER, OLDER, NEWER. */ |
347 |
|
348 |
*(bp++) = ' '; |
349 |
|
350 |
n = min(m[5].rm_eo - m[5].rm_so, |
351 |
MASK_BODY_LEN - (bp - node->body) - 2); |
352 |
xstrncpy(bp, line + m[5].rm_so, n); |
353 |
*(bp + n) = '\0'; |
354 |
bp += n; |
355 |
*bp = '\0'; |
356 |
|
357 |
/* Mask length after conversion to IMAP4rev1 date format. */ |
358 |
if (strstr(node->body, "OLDER")) |
359 |
len = strlen("NOT BEFORE DD-MMM-YYYY"); |
360 |
else if (strstr(node->body, "NEWER")) |
361 |
len = strlen("NOT SINCE DD-MMM-YYYY"); |
362 |
else |
363 |
len = bp - node->body; |
364 |
|
365 |
break; |
366 |
default: |
367 |
break; |
368 |
} |
369 |
|
370 |
APPEND_LINKED_LIST(cur_fltr->masks, node, mask); |
371 |
|
372 |
cur_fltr->masknum++; |
373 |
cur_fltr->masklen += len; |
374 |
|
375 |
#ifdef DEBUG |
376 |
fprintf(stderr, "debug: MASK: '%s'\n", node->body); |
377 |
#endif |
378 |
|
379 |
return 0; |
380 |
} |
381 |
|
382 |
|
383 |
/* |
384 |
* A new job was declared, link filters with mailbox-groups. |
385 |
*/ |
386 |
int |
387 |
set_job(char *line, regmatch_t * match) |
388 |
{ |
389 |
int n; |
390 |
char *ftok, *gtok, *fltr, *mbgrp, *f, *g; |
391 |
filter_t *cf; |
392 |
mboxgrp_t *cg; |
393 |
|
394 |
if (accounts == NULL || filters == NULL || cur_fltr->action.type == 0) |
395 |
return ERROR_CONFIG_PARSE; |
396 |
|
397 |
n = match[1].rm_eo - match[1].rm_so; |
398 |
fltr = (char *)xmalloc(n + 1); |
399 |
|
400 |
f = xstrncpy(fltr, line + match[1].rm_so, n); |
401 |
f[n] = '\0'; |
402 |
|
403 |
n = match[2].rm_eo - match[2].rm_so; |
404 |
mbgrp = (char *)xmalloc(n + 1); |
405 |
|
406 |
/* Go through filters. */ |
407 |
ftok = strtok_r(f, ",", &f); |
408 |
while (ftok != NULL) { |
409 |
FIND_TREE(filters, ftok, cf); |
410 |
if (cf == NULL) |
411 |
return ERROR_CONFIG_PARSE; |
412 |
|
413 |
g = xstrncpy(mbgrp, line + match[2].rm_so, n); |
414 |
g[n] = '\0'; |
415 |
|
416 |
/* Go through mailbox groups. */ |
417 |
gtok = strtok_r(g, ",", &g); |
418 |
while (gtok != NULL) { |
419 |
FIND_TREE(mboxgrps, gtok, cg); |
420 |
if (cg == NULL) |
421 |
return ERROR_CONFIG_PARSE; |
422 |
link_mbox_filter(cf, cg); |
423 |
|
424 |
gtok = strtok_r(NULL, ",", &g); |
425 |
} |
426 |
|
427 |
ftok = strtok_r(NULL, ",", &f); |
428 |
} |
429 |
|
430 |
xfree(fltr); |
431 |
xfree(mbgrp); |
432 |
|
433 |
return 0; |
434 |
} |
435 |
|
436 |
|
437 |
/* |
438 |
* Link a filter with a mailbox. |
439 |
*/ |
440 |
void |
441 |
link_mbox_filter(filter_t * cf, mboxgrp_t * cg) |
442 |
{ |
443 |
int i, j, f; |
444 |
|
445 |
for (i = 0; cg->mboxes[i] != NULL; i++) { |
446 |
for (f = j = 0; cg->mboxes[i]->filters[j] != NULL; j++) |
447 |
if (j == MBOX_FILTERS_MAX - 1 || |
448 |
!strcmp(cf->key, cg->mboxes[i]->filters[j]->key)) |
449 |
f = 1; |
450 |
|
451 |
if (f) |
452 |
continue; |
453 |
|
454 |
cg->mboxes[i]->filters[j] = cf; |
455 |
cg->mboxes[i]->filters[j + 1] = NULL; |
456 |
|
457 |
} |
458 |
|
459 |
#ifdef DEBUG |
460 |
fprintf(stderr, "debug: JOB: '%s' '%s'\n", cf->key, cg->key); |
461 |
#endif |
462 |
} |
463 |
|
464 |
|
465 |
/* |
466 |
* Convert a string of specified size to upper case. |
467 |
*/ |
468 |
void |
469 |
string_upper(char *str, size_t size) |
470 |
{ |
471 |
unsigned int i; |
472 |
|
473 |
for (i = 0; i < size; i++, str++) |
474 |
*str = toupper(*str); |
475 |
} |