| 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 |
| 123 |
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 |
} |
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