Commit | Line | Data |
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87fcc8b9 | 1 | /* $Cambridge: exim/src/src/sieve.c,v 1.14 2005/11/14 11:41:23 ph10 Exp $ */ |
059ec3d9 PH |
2 | |
3 | /************************************************* | |
4 | * Exim - an Internet mail transport agent * | |
5 | *************************************************/ | |
6 | ||
e4a89c47 | 7 | /* Copyright (c) Michael Haardt 2003-2005 */ |
059ec3d9 PH |
8 | /* See the file NOTICE for conditions of use and distribution. */ |
9 | ||
10 | /* This code was contributed by Michael Haardt. */ | |
11 | ||
12 | ||
13 | /* Sieve mail filter. */ | |
14 | ||
15 | #include <ctype.h> | |
16 | #include <errno.h> | |
17 | #include <limits.h> | |
18 | #include <stdlib.h> | |
19 | #include <string.h> | |
20 | ||
21 | #include "exim.h" | |
22 | ||
23 | #if HAVE_ICONV | |
24 | #include <iconv.h> | |
25 | #endif | |
26 | ||
27 | /* Define this for RFC compliant \r\n end-of-line terminators. */ | |
28 | /* Undefine it for UNIX-style \n end-of-line terminators (default). */ | |
29 | #undef RFC_EOL | |
30 | ||
87fcc8b9 PH |
31 | /* Define this for development of the Sieve extension "notify". */ |
32 | #undef NOTIFY | |
33 | ||
34 | /* Define this for the Sieve extension "subaddress". */ | |
5ea81592 | 35 | #define SUBADDRESS |
059ec3d9 | 36 | |
87fcc8b9 | 37 | /* Define this for the Sieve extension "vacation". */ |
059ec3d9 PH |
38 | #define VACATION |
39 | ||
40 | /* Must be >= 1 */ | |
41 | #define VACATION_MIN_DAYS 1 | |
42 | /* Must be >= VACATION_MIN_DAYS, must be > 7, should be > 30 */ | |
43 | #define VACATION_MAX_DAYS 31 | |
44 | ||
45 | /* Keep this at 75 to accept only RFC compliant MIME words. */ | |
46 | /* Increase it if you want to match headers from buggy MUAs. */ | |
47 | #define MIMEWORD_LENGTH 75 | |
48 | ||
49 | struct Sieve | |
50 | { | |
51 | uschar *filter; | |
52 | const uschar *pc; | |
53 | int line; | |
54 | const uschar *errmsg; | |
55 | int keep; | |
56 | int require_envelope; | |
57 | int require_fileinto; | |
87fcc8b9 PH |
58 | #ifdef NOTIFY |
59 | int require_notify; | |
60 | #endif | |
059ec3d9 PH |
61 | #ifdef SUBADDRESS |
62 | int require_subaddress; | |
63 | #endif | |
64 | #ifdef VACATION | |
65 | int require_vacation; | |
66 | int vacation_ran; | |
67 | #endif | |
68 | uschar *vacation_directory; | |
e4a89c47 PH |
69 | const uschar *subaddress; |
70 | const uschar *useraddress; | |
059ec3d9 PH |
71 | int require_copy; |
72 | int require_iascii_numeric; | |
73 | }; | |
74 | ||
5ea81592 | 75 | enum Comparator { COMP_OCTET, COMP_EN_ASCII_CASEMAP, COMP_ASCII_NUMERIC }; |
059ec3d9 PH |
76 | enum MatchType { MATCH_IS, MATCH_CONTAINS, MATCH_MATCHES }; |
77 | #ifdef SUBADDRESS | |
78 | enum AddressPart { ADDRPART_USER, ADDRPART_DETAIL, ADDRPART_LOCALPART, ADDRPART_DOMAIN, ADDRPART_ALL }; | |
79 | #else | |
80 | enum AddressPart { ADDRPART_LOCALPART, ADDRPART_DOMAIN, ADDRPART_ALL }; | |
81 | #endif | |
82 | enum RelOp { LT, LE, EQ, GE, GT, NE }; | |
83 | ||
84 | struct String | |
85 | { | |
86 | uschar *character; | |
87 | int length; | |
88 | }; | |
89 | ||
90 | static int parse_test(struct Sieve *filter, int *cond, int exec); | |
91 | static int parse_commands(struct Sieve *filter, int exec, address_item **generated); | |
92 | ||
93 | static uschar str_from_c[]="From"; | |
94 | static const struct String str_from={ str_from_c, 4 }; | |
95 | static uschar str_to_c[]="To"; | |
96 | static const struct String str_to={ str_to_c, 2 }; | |
97 | static uschar str_cc_c[]="Cc"; | |
98 | static const struct String str_cc={ str_cc_c, 2 }; | |
99 | static uschar str_bcc_c[]="Bcc"; | |
100 | static const struct String str_bcc={ str_bcc_c, 3 }; | |
101 | static uschar str_sender_c[]="Sender"; | |
102 | static const struct String str_sender={ str_sender_c, 6 }; | |
103 | static uschar str_resent_from_c[]="Resent-From"; | |
104 | static const struct String str_resent_from={ str_resent_from_c, 11 }; | |
105 | static uschar str_resent_to_c[]="Resent-To"; | |
106 | static const struct String str_resent_to={ str_resent_to_c, 9 }; | |
107 | static uschar str_fileinto_c[]="fileinto"; | |
108 | static const struct String str_fileinto={ str_fileinto_c, 8 }; | |
109 | static uschar str_envelope_c[]="envelope"; | |
110 | static const struct String str_envelope={ str_envelope_c, 8 }; | |
87fcc8b9 PH |
111 | #ifdef NOTIFY |
112 | static uschar str_notify_c[]="notify"; | |
113 | static const struct String str_notify={ str_notify_c, 6 }; | |
114 | #endif | |
059ec3d9 PH |
115 | #ifdef SUBADDRESS |
116 | static uschar str_subaddress_c[]="subaddress"; | |
117 | static const struct String str_subaddress={ str_subaddress_c, 10 }; | |
118 | #endif | |
119 | #ifdef VACATION | |
120 | static uschar str_vacation_c[]="vacation"; | |
121 | static const struct String str_vacation={ str_vacation_c, 8 }; | |
122 | static uschar str_subject_c[]="Subject"; | |
123 | static const struct String str_subject={ str_subject_c, 7 }; | |
124 | #endif | |
125 | static uschar str_copy_c[]="copy"; | |
126 | static const struct String str_copy={ str_copy_c, 4 }; | |
127 | static uschar str_iascii_casemap_c[]="i;ascii-casemap"; | |
128 | static const struct String str_iascii_casemap={ str_iascii_casemap_c, 15 }; | |
5ea81592 PH |
129 | static uschar str_enascii_casemap_c[]="en;ascii-casemap"; |
130 | static const struct String str_enascii_casemap={ str_enascii_casemap_c, 16 }; | |
059ec3d9 PH |
131 | static uschar str_ioctet_c[]="i;octet"; |
132 | static const struct String str_ioctet={ str_ioctet_c, 7 }; | |
133 | static uschar str_iascii_numeric_c[]="i;ascii-numeric"; | |
134 | static const struct String str_iascii_numeric={ str_iascii_numeric_c, 15 }; | |
135 | static uschar str_comparator_iascii_casemap_c[]="comparator-i;ascii-casemap"; | |
136 | static const struct String str_comparator_iascii_casemap={ str_comparator_iascii_casemap_c, 26 }; | |
5ea81592 PH |
137 | static uschar str_comparator_enascii_casemap_c[]="comparator-en;ascii-casemap"; |
138 | static const struct String str_comparator_enascii_casemap={ str_comparator_enascii_casemap_c, 27 }; | |
059ec3d9 PH |
139 | static uschar str_comparator_ioctet_c[]="comparator-i;octet"; |
140 | static const struct String str_comparator_ioctet={ str_comparator_ioctet_c, 18 }; | |
141 | static uschar str_comparator_iascii_numeric_c[]="comparator-i;ascii-numeric"; | |
142 | static const struct String str_comparator_iascii_numeric={ str_comparator_iascii_numeric_c, 26 }; | |
143 | ||
144 | ||
145 | /************************************************* | |
146 | * Encode to quoted-printable * | |
147 | *************************************************/ | |
148 | ||
149 | /* | |
150 | Arguments: | |
151 | src UTF-8 string | |
152 | */ | |
153 | ||
154 | static struct String *quoted_printable_encode(const struct String *src, struct String *dst) | |
155 | { | |
156 | int pass; | |
157 | const uschar *start,*end; | |
158 | uschar *new = NULL; | |
159 | uschar ch; | |
160 | size_t line; | |
161 | ||
162 | for (pass=0; pass<=1; ++pass) | |
163 | { | |
164 | line=0; | |
165 | if (pass==0) | |
166 | dst->length=0; | |
167 | else | |
168 | { | |
169 | dst->character=store_get(dst->length+1); /* plus one for \0 */ | |
170 | new=dst->character; | |
171 | } | |
172 | for (start=src->character,end=start+src->length; start<end; ++start) | |
173 | { | |
174 | ch=*start; | |
175 | if (line>=73) | |
176 | { | |
177 | if (pass==0) | |
178 | dst->length+=2; | |
179 | else | |
180 | { | |
181 | *new++='='; | |
182 | *new++='\n'; | |
183 | } | |
184 | line=0; | |
185 | } | |
186 | if | |
187 | ( | |
188 | (ch>=33 && ch<=60) | |
189 | || (ch>=62 && ch<=126) | |
190 | || | |
191 | ( | |
192 | (ch==9 || ch==32) | |
193 | #ifdef RFC_EOL | |
194 | && start+2<end | |
195 | && (*(start+1)!='\r' || *(start+2)!='\n') | |
196 | #else | |
197 | && start+1<end | |
198 | && *(start+1)!='\n' | |
199 | #endif | |
200 | ) | |
201 | ) | |
202 | { | |
203 | if (pass==0) | |
204 | ++dst->length; | |
205 | else | |
206 | *new++=*start; | |
207 | ++line; | |
208 | } | |
209 | #ifdef RFC_EOL | |
210 | else if (ch=='\r' && start+1<end && *(start+1)=='\n') | |
211 | { | |
212 | if (pass==0) | |
213 | { | |
214 | ++dst->length; | |
215 | line=0; | |
216 | ++start; | |
217 | } | |
218 | else | |
219 | *new++='\n'; | |
220 | line=0; | |
221 | } | |
222 | #else | |
223 | else if (ch=='\n') | |
224 | { | |
225 | if (pass==0) | |
226 | ++dst->length; | |
227 | else | |
228 | *new++=*start; | |
229 | ++line; | |
230 | } | |
231 | #endif | |
232 | else | |
233 | { | |
234 | if (pass==0) | |
235 | dst->length+=3; | |
236 | else | |
237 | { | |
238 | sprintf(CS new,"=%02X",ch); | |
239 | new+=3; | |
240 | } | |
241 | line+=3; | |
242 | } | |
243 | } | |
244 | } | |
245 | *new='\0'; /* not included in length, but nice */ | |
246 | return dst; | |
247 | } | |
248 | ||
249 | ||
250 | /************************************************* | |
251 | * Octet-wise string comparison * | |
252 | *************************************************/ | |
253 | ||
254 | /* | |
255 | Arguments: | |
256 | needle UTF-8 string to search ... | |
257 | haystack ... inside the haystack | |
258 | match_prefix 1 to compare if needle is a prefix of haystack | |
259 | ||
260 | Returns: 0 needle not found in haystack | |
261 | 1 needle found | |
262 | */ | |
263 | ||
264 | static int eq_octet(const struct String *needle, | |
265 | const struct String *haystack, int match_prefix) | |
266 | { | |
267 | size_t nl,hl; | |
268 | const uschar *n,*h; | |
269 | ||
270 | nl=needle->length; | |
271 | n=needle->character; | |
272 | hl=haystack->length; | |
273 | h=haystack->character; | |
274 | while (nl>0 && hl>0) | |
275 | { | |
276 | #if !HAVE_ICONV | |
277 | if (*n&0x80) return 0; | |
278 | if (*h&0x80) return 0; | |
279 | #endif | |
280 | if (*n!=*h) return 0; | |
281 | ++n; | |
282 | ++h; | |
283 | --nl; | |
284 | --hl; | |
285 | } | |
286 | return (match_prefix ? nl==0 : nl==0 && hl==0); | |
287 | } | |
288 | ||
289 | ||
290 | /************************************************* | |
291 | * ASCII case-insensitive string comparison * | |
292 | *************************************************/ | |
293 | ||
294 | /* | |
295 | Arguments: | |
296 | needle UTF-8 string to search ... | |
297 | haystack ... inside the haystack | |
298 | match_prefix 1 to compare if needle is a prefix of haystack | |
299 | ||
300 | Returns: 0 needle not found in haystack | |
301 | 1 needle found | |
302 | */ | |
303 | ||
304 | static int eq_asciicase(const struct String *needle, | |
305 | const struct String *haystack, int match_prefix) | |
306 | { | |
307 | size_t nl,hl; | |
308 | const uschar *n,*h; | |
309 | uschar nc,hc; | |
310 | ||
311 | nl=needle->length; | |
312 | n=needle->character; | |
313 | hl=haystack->length; | |
314 | h=haystack->character; | |
315 | while (nl>0 && hl>0) | |
316 | { | |
317 | nc=*n; | |
318 | hc=*h; | |
319 | #if !HAVE_ICONV | |
320 | if (nc&0x80) return 0; | |
321 | if (hc&0x80) return 0; | |
322 | #endif | |
323 | /* tolower depends on the locale and only ASCII case must be insensitive */ | |
1c59d63b | 324 | if ((nc>='A' && nc<='Z' ? nc|0x20 : nc) != (hc>='A' && hc<='Z' ? hc|0x20 : hc)) return 0; |
059ec3d9 PH |
325 | ++n; |
326 | ++h; | |
327 | --nl; | |
328 | --hl; | |
329 | } | |
330 | return (match_prefix ? nl==0 : nl==0 && hl==0); | |
331 | } | |
332 | ||
333 | ||
334 | /************************************************* | |
1c59d63b | 335 | * Glob pattern search * |
059ec3d9 PH |
336 | *************************************************/ |
337 | ||
338 | /* | |
339 | Arguments: | |
340 | needle pattern to search ... | |
341 | haystack ... inside the haystack | |
342 | ||
343 | Returns: 0 needle not found in haystack | |
344 | 1 needle found | |
1c59d63b | 345 | -1 pattern error |
059ec3d9 PH |
346 | */ |
347 | ||
1c59d63b PH |
348 | static int eq_glob(const struct String *needle, |
349 | const struct String *haystack, int ascii_caseless) | |
059ec3d9 | 350 | { |
1c59d63b PH |
351 | const uschar *n,*h,*nend,*hend; |
352 | int may_advance=0; | |
059ec3d9 | 353 | |
1c59d63b PH |
354 | n=needle->character; |
355 | h=haystack->character; | |
356 | nend=n+needle->length; | |
357 | hend=h+haystack->length; | |
358 | while (n<nend) | |
059ec3d9 | 359 | { |
1c59d63b PH |
360 | if (*n=='*') |
361 | { | |
362 | ++n; | |
363 | may_advance=1; | |
059ec3d9 | 364 | } |
1c59d63b PH |
365 | else |
366 | { | |
367 | const uschar *npart,*hpart; | |
059ec3d9 | 368 | |
1c59d63b PH |
369 | /* Try to match a non-star part of the needle at the current */ |
370 | /* position in the haystack. */ | |
371 | match_part: | |
372 | npart=n; | |
373 | hpart=h; | |
374 | while (npart<nend && *npart!='*') switch (*npart) | |
375 | { | |
376 | case '?': | |
059ec3d9 | 377 | { |
1c59d63b PH |
378 | if (hpart==hend) return 0; |
379 | /* watch out: Do not match one character, but one UTF8 encoded character */ | |
380 | if ((*hpart&0xc0)==0xc0) | |
059ec3d9 | 381 | { |
1c59d63b PH |
382 | ++hpart; |
383 | while (hpart<hend && ((*hpart&0xc0)==0x80)) ++hpart; | |
059ec3d9 | 384 | } |
1c59d63b PH |
385 | else |
386 | ++hpart; | |
387 | ++npart; | |
388 | break; | |
059ec3d9 | 389 | } |
1c59d63b | 390 | case '\\': |
059ec3d9 | 391 | { |
1c59d63b PH |
392 | ++npart; |
393 | if (npart==nend) return -1; | |
394 | /* FALLTHROUGH */ | |
059ec3d9 | 395 | } |
1c59d63b | 396 | default: |
059ec3d9 | 397 | { |
1c59d63b PH |
398 | if (hpart==hend) return 0; |
399 | /* tolower depends on the locale, but we need ASCII */ | |
400 | if | |
401 | ( | |
402 | #if !HAVE_ICONV | |
403 | (*hpart&0x80) || (*npart&0x80) || | |
404 | #endif | |
405 | ascii_caseless | |
406 | ? ((*npart>='A' && *npart<='Z' ? *npart|0x20 : *npart) != (*hpart>='A' && *hpart<='Z' ? *hpart|0x20 : *hpart)) | |
407 | : *hpart!=*npart | |
408 | ) | |
059ec3d9 | 409 | { |
1c59d63b PH |
410 | if (may_advance) |
411 | /* string match after a star failed, advance and try again */ | |
059ec3d9 | 412 | { |
1c59d63b PH |
413 | ++h; |
414 | goto match_part; | |
059ec3d9 | 415 | } |
1c59d63b | 416 | else return 0; |
059ec3d9 PH |
417 | } |
418 | else | |
419 | { | |
1c59d63b PH |
420 | ++npart; |
421 | ++hpart; | |
422 | }; | |
059ec3d9 | 423 | } |
059ec3d9 | 424 | } |
1c59d63b PH |
425 | /* at this point, a part was matched successfully */ |
426 | if (may_advance && npart==nend && hpart<hend) | |
427 | /* needle ends, but haystack does not: if there was a star before, advance and try again */ | |
059ec3d9 | 428 | { |
1c59d63b PH |
429 | ++h; |
430 | goto match_part; | |
059ec3d9 | 431 | } |
1c59d63b PH |
432 | h=hpart; |
433 | n=npart; | |
434 | may_advance=0; | |
059ec3d9 PH |
435 | } |
436 | } | |
1c59d63b | 437 | return (h==hend ? 1 : may_advance); |
059ec3d9 PH |
438 | } |
439 | ||
440 | ||
441 | /************************************************* | |
442 | * ASCII numeric comparison * | |
443 | *************************************************/ | |
444 | ||
445 | /* | |
446 | Arguments: | |
447 | a first numeric string | |
448 | b second numeric string | |
449 | relop relational operator | |
450 | ||
451 | Returns: 0 not (a relop b) | |
452 | 1 a relop b | |
453 | */ | |
454 | ||
455 | static int eq_asciinumeric(const struct String *a, | |
456 | const struct String *b, enum RelOp relop) | |
457 | { | |
458 | size_t al,bl; | |
459 | const uschar *as,*aend,*bs,*bend; | |
460 | int cmp; | |
461 | ||
462 | as=a->character; | |
463 | aend=a->character+a->length; | |
464 | bs=b->character; | |
465 | bend=b->character+b->length; | |
466 | ||
467 | while (*as>='0' && *as<='9' && as<aend) ++as; | |
468 | al=as-a->character; | |
469 | while (*bs>='0' && *bs<='9' && bs<bend) ++bs; | |
470 | bl=bs-b->character; | |
471 | ||
472 | if (al && bl==0) cmp=-1; | |
473 | else if (al==0 && bl==0) cmp=0; | |
474 | else if (al==0 && bl) cmp=1; | |
475 | else | |
476 | { | |
477 | cmp=al-bl; | |
478 | if (cmp==0) cmp=memcmp(a->character,b->character,al); | |
479 | } | |
480 | switch (relop) | |
481 | { | |
482 | case LT: return cmp<0; | |
483 | case LE: return cmp<=0; | |
484 | case EQ: return cmp==0; | |
485 | case GE: return cmp>=0; | |
486 | case GT: return cmp>0; | |
487 | case NE: return cmp!=0; | |
488 | } | |
489 | /*NOTREACHED*/ | |
490 | return -1; | |
491 | } | |
492 | ||
493 | ||
494 | /************************************************* | |
495 | * Compare strings * | |
496 | *************************************************/ | |
497 | ||
498 | /* | |
499 | Arguments: | |
500 | needle UTF-8 pattern or string to search ... | |
501 | haystack ... inside the haystack | |
502 | co comparator to use | |
503 | mt match type to use | |
504 | ||
505 | Returns: 0 needle not found in haystack | |
506 | 1 needle found | |
507 | -1 comparator does not offer matchtype | |
508 | */ | |
509 | ||
510 | static int compare(struct Sieve *filter, const struct String *needle, const struct String *haystack, | |
511 | enum Comparator co, enum MatchType mt) | |
512 | { | |
513 | int r=0; | |
514 | ||
f05da2e8 | 515 | if ((filter_test != FTEST_NONE && debug_selector != 0) || |
059ec3d9 PH |
516 | (debug_selector & D_filter) != 0) |
517 | { | |
518 | debug_printf("String comparison (match "); | |
519 | switch (mt) | |
520 | { | |
521 | case MATCH_IS: debug_printf(":is"); break; | |
522 | case MATCH_CONTAINS: debug_printf(":contains"); break; | |
523 | case MATCH_MATCHES: debug_printf(":matches"); break; | |
524 | } | |
525 | debug_printf(", comparison \""); | |
526 | switch (co) | |
527 | { | |
528 | case COMP_OCTET: debug_printf("i;octet"); break; | |
5ea81592 | 529 | case COMP_EN_ASCII_CASEMAP: debug_printf("en;ascii-casemap"); break; |
059ec3d9 PH |
530 | case COMP_ASCII_NUMERIC: debug_printf("i;ascii-numeric"); break; |
531 | } | |
532 | debug_printf("\"):\n"); | |
533 | debug_printf(" Search = %s (%d chars)\n", needle->character,needle->length); | |
534 | debug_printf(" Inside = %s (%d chars)\n", haystack->character,haystack->length); | |
535 | } | |
536 | switch (mt) | |
537 | { | |
538 | case MATCH_IS: | |
539 | { | |
540 | switch (co) | |
541 | { | |
542 | case COMP_OCTET: | |
543 | { | |
544 | if (eq_octet(needle,haystack,0)) r=1; | |
545 | break; | |
546 | } | |
5ea81592 | 547 | case COMP_EN_ASCII_CASEMAP: |
059ec3d9 PH |
548 | { |
549 | if (eq_asciicase(needle,haystack,0)) r=1; | |
550 | break; | |
551 | } | |
552 | case COMP_ASCII_NUMERIC: | |
553 | { | |
554 | if (!filter->require_iascii_numeric) | |
555 | { | |
556 | filter->errmsg=CUS "missing previous require \"comparator-i;ascii-numeric\";"; | |
557 | return -1; | |
558 | } | |
559 | if (eq_asciinumeric(needle,haystack,EQ)) r=1; | |
560 | break; | |
561 | } | |
562 | } | |
563 | break; | |
564 | } | |
565 | case MATCH_CONTAINS: | |
566 | { | |
567 | struct String h; | |
568 | ||
569 | switch (co) | |
570 | { | |
571 | case COMP_OCTET: | |
572 | { | |
573 | for (h=*haystack; h.length; ++h.character,--h.length) if (eq_octet(needle,&h,1)) { r=1; break; } | |
574 | break; | |
575 | } | |
5ea81592 | 576 | case COMP_EN_ASCII_CASEMAP: |
059ec3d9 PH |
577 | { |
578 | for (h=*haystack; h.length; ++h.character,--h.length) if (eq_asciicase(needle,&h,1)) { r=1; break; } | |
579 | break; | |
580 | } | |
581 | default: | |
582 | { | |
583 | filter->errmsg=CUS "comparator does not offer specified matchtype"; | |
584 | return -1; | |
585 | } | |
586 | } | |
587 | break; | |
588 | } | |
589 | case MATCH_MATCHES: | |
590 | { | |
591 | switch (co) | |
592 | { | |
593 | case COMP_OCTET: | |
594 | { | |
1c59d63b PH |
595 | if ((r=eq_glob(needle,haystack,0))==-1) |
596 | { | |
597 | filter->errmsg=CUS "syntactically invalid pattern"; | |
598 | return -1; | |
599 | } | |
059ec3d9 PH |
600 | break; |
601 | } | |
5ea81592 | 602 | case COMP_EN_ASCII_CASEMAP: |
059ec3d9 | 603 | { |
1c59d63b PH |
604 | if ((r=eq_glob(needle,haystack,1))==-1) |
605 | { | |
606 | filter->errmsg=CUS "syntactically invalid pattern"; | |
607 | return -1; | |
608 | } | |
059ec3d9 PH |
609 | break; |
610 | } | |
611 | default: | |
612 | { | |
613 | filter->errmsg=CUS "comparator does not offer specified matchtype"; | |
614 | return -1; | |
615 | } | |
616 | } | |
617 | break; | |
618 | } | |
619 | } | |
f05da2e8 | 620 | if ((filter_test != FTEST_NONE && debug_selector != 0) || |
059ec3d9 PH |
621 | (debug_selector & D_filter) != 0) |
622 | debug_printf(" Result %s\n",r?"true":"false"); | |
623 | return r; | |
624 | } | |
625 | ||
626 | ||
627 | /************************************************* | |
628 | * Check header field syntax * | |
629 | *************************************************/ | |
630 | ||
631 | /* | |
632 | RFC 2822, section 3.6.8 says: | |
633 | ||
634 | field-name = 1*ftext | |
635 | ||
636 | ftext = %d33-57 / ; Any character except | |
637 | %d59-126 ; controls, SP, and | |
638 | ; ":". | |
639 | ||
640 | That forbids 8-bit header fields. This implementation accepts them, since | |
641 | all of Exim is 8-bit clean, so it adds %d128-%d255. | |
642 | ||
643 | Arguments: | |
644 | header header field to quote for suitable use in Exim expansions | |
645 | ||
646 | Returns: 0 string is not a valid header field | |
647 | 1 string is a value header field | |
648 | */ | |
649 | ||
650 | static int is_header(const struct String *header) | |
651 | { | |
652 | size_t l; | |
653 | const uschar *h; | |
654 | ||
655 | l=header->length; | |
656 | h=header->character; | |
657 | if (l==0) return 0; | |
658 | while (l) | |
659 | { | |
660 | if (((unsigned char)*h)<33 || ((unsigned char)*h)==':' || ((unsigned char)*h)==127) return 0; | |
661 | else | |
662 | { | |
663 | ++h; | |
664 | --l; | |
665 | } | |
666 | } | |
667 | return 1; | |
668 | } | |
669 | ||
670 | ||
671 | /************************************************* | |
672 | * Quote special characters string * | |
673 | *************************************************/ | |
674 | ||
675 | /* | |
676 | Arguments: | |
677 | header header field to quote for suitable use in Exim expansions | |
678 | or as debug output | |
679 | ||
680 | Returns: quoted string | |
681 | */ | |
682 | ||
683 | static const uschar *quote(const struct String *header) | |
684 | { | |
685 | uschar *quoted=NULL; | |
686 | int size=0,ptr=0; | |
687 | size_t l; | |
688 | const uschar *h; | |
689 | ||
690 | l=header->length; | |
691 | h=header->character; | |
692 | while (l) | |
693 | { | |
694 | switch (*h) | |
695 | { | |
696 | case '\0': | |
697 | { | |
698 | quoted=string_cat(quoted,&size,&ptr,CUS "\\0",2); | |
699 | break; | |
700 | } | |
701 | case '$': | |
702 | case '{': | |
703 | case '}': | |
704 | { | |
705 | quoted=string_cat(quoted,&size,&ptr,CUS "\\",1); | |
706 | } | |
707 | default: | |
708 | { | |
709 | quoted=string_cat(quoted,&size,&ptr,h,1); | |
710 | } | |
711 | } | |
712 | ++h; | |
713 | --l; | |
714 | } | |
715 | quoted=string_cat(quoted,&size,&ptr,CUS "",1); | |
716 | return quoted; | |
717 | } | |
718 | ||
719 | ||
720 | /************************************************* | |
721 | * Add address to list of generated addresses * | |
722 | *************************************************/ | |
723 | ||
724 | /* | |
725 | According to RFC 3028, duplicate delivery to the same address must | |
726 | not happen, so the list is first searched for the address. | |
727 | ||
728 | Arguments: | |
729 | generated list of generated addresses | |
730 | addr new address to add | |
731 | file address denotes a file | |
732 | ||
733 | Returns: nothing | |
734 | */ | |
735 | ||
736 | static void add_addr(address_item **generated, uschar *addr, int file, int maxage, int maxmessages, int maxstorage) | |
737 | { | |
738 | address_item *new_addr; | |
739 | ||
740 | for (new_addr=*generated; new_addr; new_addr=new_addr->next) | |
741 | { | |
742 | if (Ustrcmp(new_addr->address,addr)==0 && (file ? testflag(new_addr, af_pfr|af_file) : 1)) | |
743 | { | |
f05da2e8 | 744 | if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0) |
059ec3d9 PH |
745 | { |
746 | debug_printf("Repeated %s `%s' ignored.\n",file ? "fileinto" : "redirect", addr); | |
747 | } | |
748 | return; | |
749 | } | |
750 | } | |
751 | ||
f05da2e8 | 752 | if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0) |
059ec3d9 PH |
753 | { |
754 | debug_printf("%s `%s'\n",file ? "fileinto" : "redirect", addr); | |
755 | } | |
756 | new_addr=deliver_make_addr(addr,TRUE); | |
757 | if (file) | |
758 | { | |
759 | setflag(new_addr, af_pfr|af_file); | |
760 | new_addr->mode = 0; | |
761 | } | |
762 | new_addr->p.errors_address = NULL; | |
763 | new_addr->next = *generated; | |
764 | *generated = new_addr; | |
765 | } | |
766 | ||
767 | ||
768 | /************************************************* | |
769 | * Return decoded header field * | |
770 | *************************************************/ | |
771 | ||
772 | /* | |
773 | Arguments: | |
774 | value returned value of the field | |
775 | header name of the header field | |
776 | ||
777 | Returns: nothing The expanded string is empty | |
778 | in case there is no such header | |
779 | */ | |
780 | ||
781 | static void expand_header(struct String *value, const struct String *header) | |
782 | { | |
783 | uschar *s,*r,*t; | |
784 | uschar *errmsg; | |
785 | ||
786 | value->length=0; | |
787 | value->character=(uschar*)0; | |
788 | ||
789 | t=r=s=expand_string(string_sprintf("$rheader_%s",quote(header))); | |
790 | while (*r==' ') ++r; | |
791 | while (*r) | |
792 | { | |
793 | if (*r=='\n') | |
794 | { | |
795 | ++r; | |
796 | while (*r==' ' || *r=='\t') ++r; | |
797 | if (*r) *t++=' '; | |
798 | } | |
799 | else | |
800 | *t++=*r++; | |
801 | } | |
802 | *t++='\0'; | |
803 | value->character=rfc2047_decode(s,TRUE,US"utf-8",'\0',&value->length,&errmsg); | |
804 | } | |
805 | ||
806 | ||
807 | /************************************************* | |
808 | * Parse remaining hash comment * | |
809 | *************************************************/ | |
810 | ||
811 | /* | |
812 | Token definition: | |
813 | Comment up to terminating CRLF | |
814 | ||
815 | Arguments: | |
816 | filter points to the Sieve filter including its state | |
817 | ||
818 | Returns: 1 success | |
819 | -1 syntax error | |
820 | */ | |
821 | ||
822 | static int parse_hashcomment(struct Sieve *filter) | |
823 | { | |
824 | ++filter->pc; | |
825 | while (*filter->pc) | |
826 | { | |
827 | #ifdef RFC_EOL | |
828 | if (*filter->pc=='\r' && *(filter->pc+1)=='\n') | |
829 | #else | |
830 | if (*filter->pc=='\n') | |
831 | #endif | |
832 | { | |
833 | #ifdef RFC_EOL | |
834 | filter->pc+=2; | |
835 | #else | |
836 | ++filter->pc; | |
837 | #endif | |
838 | ++filter->line; | |
839 | return 1; | |
840 | } | |
841 | else ++filter->pc; | |
842 | } | |
843 | filter->errmsg=CUS "missing end of comment"; | |
844 | return -1; | |
845 | } | |
846 | ||
847 | ||
848 | /************************************************* | |
849 | * Parse remaining C-style comment * | |
850 | *************************************************/ | |
851 | ||
852 | /* | |
853 | Token definition: | |
854 | Everything up to star slash | |
855 | ||
856 | Arguments: | |
857 | filter points to the Sieve filter including its state | |
858 | ||
859 | Returns: 1 success | |
860 | -1 syntax error | |
861 | */ | |
862 | ||
863 | static int parse_comment(struct Sieve *filter) | |
864 | { | |
865 | filter->pc+=2; | |
866 | while (*filter->pc) | |
867 | { | |
868 | if (*filter->pc=='*' && *(filter->pc+1)=='/') | |
869 | { | |
870 | filter->pc+=2; | |
871 | return 1; | |
872 | } | |
873 | else ++filter->pc; | |
874 | } | |
875 | filter->errmsg=CUS "missing end of comment"; | |
876 | return -1; | |
877 | } | |
878 | ||
879 | ||
880 | /************************************************* | |
881 | * Parse optional white space * | |
882 | *************************************************/ | |
883 | ||
884 | /* | |
885 | Token definition: | |
886 | Spaces, tabs, CRLFs, hash comments or C-style comments | |
887 | ||
888 | Arguments: | |
889 | filter points to the Sieve filter including its state | |
890 | ||
891 | Returns: 1 success | |
892 | -1 syntax error | |
893 | */ | |
894 | ||
895 | static int parse_white(struct Sieve *filter) | |
896 | { | |
897 | while (*filter->pc) | |
898 | { | |
899 | if (*filter->pc==' ' || *filter->pc=='\t') ++filter->pc; | |
900 | #ifdef RFC_EOL | |
901 | else if (*filter->pc=='\r' && *(filter->pc+1)=='\n') | |
902 | #else | |
903 | else if (*filter->pc=='\n') | |
904 | #endif | |
905 | { | |
906 | #ifdef RFC_EOL | |
907 | filter->pc+=2; | |
908 | #else | |
909 | ++filter->pc; | |
910 | #endif | |
911 | ++filter->line; | |
912 | } | |
913 | else if (*filter->pc=='#') | |
914 | { | |
915 | if (parse_hashcomment(filter)==-1) return -1; | |
916 | } | |
917 | else if (*filter->pc=='/' && *(filter->pc+1)=='*') | |
918 | { | |
919 | if (parse_comment(filter)==-1) return -1; | |
920 | } | |
921 | else break; | |
922 | } | |
923 | return 1; | |
924 | } | |
925 | ||
926 | ||
927 | /************************************************* | |
928 | * Parse a optional string * | |
929 | *************************************************/ | |
930 | ||
931 | /* | |
932 | Token definition: | |
933 | quoted-string = DQUOTE *CHAR DQUOTE | |
934 | ;; in general, \ CHAR inside a string maps to CHAR | |
935 | ;; so \" maps to " and \\ maps to \ | |
936 | ;; note that newlines and other characters are all allowed | |
937 | ;; in strings | |
938 | ||
939 | multi-line = "text:" *(SP / HTAB) (hash-comment / CRLF) | |
940 | *(multi-line-literal / multi-line-dotstuff) | |
941 | "." CRLF | |
942 | multi-line-literal = [CHAR-NOT-DOT *CHAR-NOT-CRLF] CRLF | |
943 | multi-line-dotstuff = "." 1*CHAR-NOT-CRLF CRLF | |
944 | ;; A line containing only "." ends the multi-line. | |
945 | ;; Remove a leading '.' if followed by another '.'. | |
946 | string = quoted-string / multi-line | |
947 | ||
948 | Arguments: | |
949 | filter points to the Sieve filter including its state | |
950 | id specifies identifier to match | |
951 | ||
952 | Returns: 1 success | |
953 | -1 syntax error | |
954 | 0 identifier not matched | |
955 | */ | |
956 | ||
957 | static int parse_string(struct Sieve *filter, struct String *data) | |
958 | { | |
959 | int dataCapacity=0; | |
960 | ||
961 | data->length=0; | |
962 | data->character=(uschar*)0; | |
963 | if (*filter->pc=='"') /* quoted string */ | |
964 | { | |
965 | ++filter->pc; | |
966 | while (*filter->pc) | |
967 | { | |
968 | if (*filter->pc=='"') /* end of string */ | |
969 | { | |
970 | int foo=data->length; | |
971 | ||
972 | ++filter->pc; | |
973 | data->character=string_cat(data->character,&dataCapacity,&foo,CUS "",1); | |
974 | return 1; | |
975 | } | |
976 | else if (*filter->pc=='\\' && *(filter->pc+1)) /* quoted character */ | |
977 | { | |
978 | if (*(filter->pc+1)=='0') data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "",1); | |
979 | else data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc+1,1); | |
980 | filter->pc+=2; | |
981 | } | |
982 | else /* regular character */ | |
983 | { | |
984 | data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc,1); | |
985 | filter->pc++; | |
986 | } | |
987 | } | |
988 | filter->errmsg=CUS "missing end of string"; | |
989 | return -1; | |
990 | } | |
991 | else if (Ustrncmp(filter->pc,CUS "text:",5)==0) /* multiline string */ | |
992 | { | |
993 | filter->pc+=5; | |
994 | /* skip optional white space followed by hashed comment or CRLF */ | |
995 | while (*filter->pc==' ' || *filter->pc=='\t') ++filter->pc; | |
996 | if (*filter->pc=='#') | |
997 | { | |
998 | if (parse_hashcomment(filter)==-1) return -1; | |
999 | } | |
1000 | #ifdef RFC_EOL | |
1001 | else if (*filter->pc=='\r' && *(filter->pc+1)=='\n') | |
1002 | #else | |
1003 | else if (*filter->pc=='\n') | |
1004 | #endif | |
1005 | { | |
1006 | #ifdef RFC_EOL | |
1007 | filter->pc+=2; | |
1008 | #else | |
1009 | ++filter->pc; | |
1010 | #endif | |
1011 | ++filter->line; | |
1012 | } | |
1013 | else | |
1014 | { | |
1015 | filter->errmsg=CUS "syntax error"; | |
1016 | return -1; | |
1017 | } | |
1018 | while (*filter->pc) | |
1019 | { | |
1020 | #ifdef RFC_EOL | |
1021 | if (*filter->pc=='\r' && *(filter->pc+1)=='\n') /* end of line */ | |
1022 | #else | |
1023 | if (*filter->pc=='\n') /* end of line */ | |
1024 | #endif | |
1025 | { | |
1026 | data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "\r\n",2); | |
1027 | #ifdef RFC_EOL | |
1028 | filter->pc+=2; | |
1029 | #else | |
1030 | ++filter->pc; | |
1031 | #endif | |
1032 | ++filter->line; | |
1033 | #ifdef RFC_EOL | |
1034 | if (*filter->pc=='.' && *(filter->pc+1)=='\r' && *(filter->pc+2)=='\n') /* end of string */ | |
1035 | #else | |
1036 | if (*filter->pc=='.' && *(filter->pc+1)=='\n') /* end of string */ | |
1037 | #endif | |
1038 | { | |
1039 | data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "",1); | |
1040 | #ifdef RFC_EOL | |
1041 | filter->pc+=3; | |
1042 | #else | |
1043 | filter->pc+=2; | |
1044 | #endif | |
1045 | ++filter->line; | |
1046 | return 1; | |
1047 | } | |
1048 | else if (*filter->pc=='.' && *(filter->pc+1)=='.') /* remove dot stuffing */ | |
1049 | { | |
1050 | data->character=string_cat(data->character,&dataCapacity,&data->length,CUS ".",1); | |
1051 | filter->pc+=2; | |
1052 | } | |
1053 | } | |
1054 | else /* regular character */ | |
1055 | { | |
1056 | data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc,1); | |
1057 | filter->pc++; | |
1058 | } | |
1059 | } | |
1060 | filter->errmsg=CUS "missing end of multi line string"; | |
1061 | return -1; | |
1062 | } | |
1063 | else return 0; | |
1064 | } | |
1065 | ||
1066 | ||
1067 | /************************************************* | |
1068 | * Parse a specific identifier * | |
1069 | *************************************************/ | |
1070 | ||
1071 | /* | |
1072 | Token definition: | |
1073 | identifier = (ALPHA / "_") *(ALPHA DIGIT "_") | |
1074 | ||
1075 | Arguments: | |
1076 | filter points to the Sieve filter including its state | |
1077 | id specifies identifier to match | |
1078 | ||
1079 | Returns: 1 success | |
1080 | 0 identifier not matched | |
1081 | */ | |
1082 | ||
1083 | static int parse_identifier(struct Sieve *filter, const uschar *id) | |
1084 | { | |
1085 | size_t idlen=Ustrlen(id); | |
1086 | ||
1087 | if (Ustrncmp(filter->pc,id,idlen)==0) | |
1088 | { | |
1089 | uschar next=filter->pc[idlen]; | |
1090 | ||
1091 | if ((next>='A' && next<='Z') || (next>='a' && next<='z') || next=='_' || (next>='0' && next<='9')) return 0; | |
1092 | filter->pc+=idlen; | |
1093 | return 1; | |
1094 | } | |
1095 | else return 0; | |
1096 | } | |
1097 | ||
1098 | ||
1099 | /************************************************* | |
1100 | * Parse a number * | |
1101 | *************************************************/ | |
1102 | ||
1103 | /* | |
1104 | Token definition: | |
1105 | number = 1*DIGIT [QUANTIFIER] | |
1106 | QUANTIFIER = "K" / "M" / "G" | |
1107 | ||
1108 | Arguments: | |
1109 | filter points to the Sieve filter including its state | |
1110 | data returns value | |
1111 | ||
1112 | Returns: 1 success | |
1113 | -1 no string list found | |
1114 | */ | |
1115 | ||
1116 | static int parse_number(struct Sieve *filter, unsigned long *data) | |
1117 | { | |
1118 | unsigned long d,u; | |
1119 | ||
1120 | if (*filter->pc>='0' && *filter->pc<='9') | |
1121 | { | |
1122 | uschar *e; | |
1123 | ||
1124 | errno=0; | |
1125 | d=Ustrtoul(filter->pc,&e,10); | |
1126 | if (errno==ERANGE) | |
1127 | { | |
1128 | filter->errmsg=CUstrerror(ERANGE); | |
1129 | return -1; | |
1130 | } | |
1131 | filter->pc=e; | |
1132 | u=1; | |
1133 | if (*filter->pc=='K') { u=1024; ++filter->pc; } | |
1134 | else if (*filter->pc=='M') { u=1024*1024; ++filter->pc; } | |
1135 | else if (*filter->pc=='G') { u=1024*1024*1024; ++filter->pc; } | |
1136 | if (d>(ULONG_MAX/u)) | |
1137 | { | |
1138 | filter->errmsg=CUstrerror(ERANGE); | |
1139 | return -1; | |
1140 | } | |
1141 | d*=u; | |
1142 | *data=d; | |
1143 | return 1; | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | filter->errmsg=CUS "missing number"; | |
1148 | return -1; | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | ||
1153 | /************************************************* | |
1154 | * Parse a string list * | |
1155 | *************************************************/ | |
1156 | ||
1157 | /* | |
1158 | Grammar: | |
1159 | string-list = "[" string *("," string) "]" / string | |
1160 | ||
1161 | Arguments: | |
1162 | filter points to the Sieve filter including its state | |
1163 | data returns string list | |
1164 | ||
1165 | Returns: 1 success | |
1166 | -1 no string list found | |
1167 | */ | |
1168 | ||
1169 | static int parse_stringlist(struct Sieve *filter, struct String **data) | |
1170 | { | |
1171 | const uschar *orig=filter->pc; | |
1172 | int dataCapacity=0; | |
1173 | int dataLength=0; | |
1174 | struct String *d=(struct String*)0; | |
1175 | int m; | |
1176 | ||
1177 | if (*filter->pc=='[') /* string list */ | |
1178 | { | |
1179 | ++filter->pc; | |
1180 | for (;;) | |
1181 | { | |
1182 | if (parse_white(filter)==-1) goto error; | |
1183 | if ((dataLength+1)>=dataCapacity) /* increase buffer */ | |
1184 | { | |
1185 | struct String *new; | |
1186 | int newCapacity; /* Don't amalgamate with next line; some compilers grumble */ | |
1187 | newCapacity=dataCapacity?(dataCapacity*=2):(dataCapacity=4); | |
1188 | if ((new=(struct String*)store_get(sizeof(struct String)*newCapacity))==(struct String*)0) | |
1189 | { | |
1190 | filter->errmsg=CUstrerror(errno); | |
1191 | goto error; | |
1192 | } | |
1193 | if (d) memcpy(new,d,sizeof(struct String)*dataLength); | |
1194 | d=new; | |
1195 | dataCapacity=newCapacity; | |
1196 | } | |
1197 | m=parse_string(filter,&d[dataLength]); | |
1198 | if (m==0) | |
1199 | { | |
1200 | if (dataLength==0) break; | |
1201 | else | |
1202 | { | |
1203 | filter->errmsg=CUS "missing string"; | |
1204 | goto error; | |
1205 | } | |
1206 | } | |
1207 | else if (m==-1) goto error; | |
1208 | else ++dataLength; | |
1209 | if (parse_white(filter)==-1) goto error; | |
1210 | if (*filter->pc==',') ++filter->pc; | |
1211 | else break; | |
1212 | } | |
1213 | if (*filter->pc==']') | |
1214 | { | |
1215 | d[dataLength].character=(uschar*)0; | |
1216 | d[dataLength].length=-1; | |
1217 | ++filter->pc; | |
1218 | *data=d; | |
1219 | return 1; | |
1220 | } | |
1221 | else | |
1222 | { | |
1223 | filter->errmsg=CUS "missing closing bracket"; | |
1224 | goto error; | |
1225 | } | |
1226 | } | |
1227 | else /* single string */ | |
1228 | { | |
1229 | if ((d=store_get(sizeof(struct String)*2))==(struct String*)0) | |
1230 | { | |
1231 | return -1; | |
1232 | } | |
1233 | m=parse_string(filter,&d[0]); | |
1234 | if (m==-1) | |
1235 | { | |
1236 | return -1; | |
1237 | } | |
1238 | else if (m==0) | |
1239 | { | |
1240 | filter->pc=orig; | |
1241 | return 0; | |
1242 | } | |
1243 | else | |
1244 | { | |
1245 | d[1].character=(uschar*)0; | |
1246 | d[1].length=-1; | |
1247 | *data=d; | |
1248 | return 1; | |
1249 | } | |
1250 | } | |
1251 | error: | |
1252 | filter->errmsg=CUS "missing string list"; | |
1253 | return -1; | |
1254 | } | |
1255 | ||
1256 | ||
1257 | /************************************************* | |
1258 | * Parse an optional address part specifier * | |
1259 | *************************************************/ | |
1260 | ||
1261 | /* | |
1262 | Grammar: | |
1263 | address-part = ":localpart" / ":domain" / ":all" | |
1264 | address-part =/ ":user" / ":detail" | |
1265 | ||
1266 | Arguments: | |
1267 | filter points to the Sieve filter including its state | |
1268 | a returns address part specified | |
1269 | ||
1270 | Returns: 1 success | |
1271 | 0 no comparator found | |
1272 | -1 syntax error | |
1273 | */ | |
1274 | ||
1275 | static int parse_addresspart(struct Sieve *filter, enum AddressPart *a) | |
1276 | { | |
1277 | #ifdef SUBADDRESS | |
1278 | if (parse_identifier(filter,CUS ":user")==1) | |
1279 | { | |
1280 | if (!filter->require_subaddress) | |
1281 | { | |
1282 | filter->errmsg=CUS "missing previous require \"subaddress\";"; | |
1283 | return -1; | |
1284 | } | |
1285 | *a=ADDRPART_USER; | |
1286 | return 1; | |
1287 | } | |
1288 | else if (parse_identifier(filter,CUS ":detail")==1) | |
1289 | { | |
1290 | if (!filter->require_subaddress) | |
1291 | { | |
1292 | filter->errmsg=CUS "missing previous require \"subaddress\";"; | |
1293 | return -1; | |
1294 | } | |
1295 | *a=ADDRPART_DETAIL; | |
1296 | return 1; | |
1297 | } | |
1298 | else | |
1299 | #endif | |
1300 | if (parse_identifier(filter,CUS ":localpart")==1) | |
1301 | { | |
1302 | *a=ADDRPART_LOCALPART; | |
1303 | return 1; | |
1304 | } | |
1305 | else if (parse_identifier(filter,CUS ":domain")==1) | |
1306 | { | |
1307 | *a=ADDRPART_DOMAIN; | |
1308 | return 1; | |
1309 | } | |
1310 | else if (parse_identifier(filter,CUS ":all")==1) | |
1311 | { | |
1312 | *a=ADDRPART_ALL; | |
1313 | return 1; | |
1314 | } | |
1315 | else return 0; | |
1316 | } | |
1317 | ||
1318 | ||
1319 | /************************************************* | |
1320 | * Parse an optional comparator * | |
1321 | *************************************************/ | |
1322 | ||
1323 | /* | |
1324 | Grammar: | |
1325 | comparator = ":comparator" <comparator-name: string> | |
1326 | ||
1327 | Arguments: | |
1328 | filter points to the Sieve filter including its state | |
1329 | c returns comparator | |
1330 | ||
1331 | Returns: 1 success | |
1332 | 0 no comparator found | |
1333 | -1 incomplete comparator found | |
1334 | */ | |
1335 | ||
1336 | static int parse_comparator(struct Sieve *filter, enum Comparator *c) | |
1337 | { | |
1338 | struct String comparator_name; | |
1339 | ||
1340 | if (parse_identifier(filter,CUS ":comparator")==0) return 0; | |
1341 | if (parse_white(filter)==-1) return -1; | |
1342 | switch (parse_string(filter,&comparator_name)) | |
1343 | { | |
1344 | case -1: return -1; | |
1345 | case 0: | |
1346 | { | |
1347 | filter->errmsg=CUS "missing comparator"; | |
1348 | return -1; | |
1349 | } | |
1350 | default: | |
1351 | { | |
1352 | int match; | |
1353 | ||
1354 | if (eq_asciicase(&comparator_name,&str_ioctet,0)) | |
1355 | { | |
1356 | *c=COMP_OCTET; | |
1357 | match=1; | |
1358 | } | |
1359 | else if (eq_asciicase(&comparator_name,&str_iascii_casemap,0)) | |
1360 | { | |
5ea81592 PH |
1361 | *c=COMP_EN_ASCII_CASEMAP; |
1362 | match=1; | |
1363 | } | |
1364 | else if (eq_asciicase(&comparator_name,&str_enascii_casemap,0)) | |
1365 | { | |
1366 | *c=COMP_EN_ASCII_CASEMAP; | |
059ec3d9 PH |
1367 | match=1; |
1368 | } | |
1369 | else if (eq_asciicase(&comparator_name,&str_iascii_numeric,0)) | |
1370 | { | |
1371 | *c=COMP_ASCII_NUMERIC; | |
1372 | match=1; | |
1373 | } | |
1374 | else | |
1375 | { | |
1376 | filter->errmsg=CUS "invalid comparator"; | |
1377 | match=-1; | |
1378 | } | |
1379 | return match; | |
1380 | } | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | ||
1385 | /************************************************* | |
1386 | * Parse an optional match type * | |
1387 | *************************************************/ | |
1388 | ||
1389 | /* | |
1390 | Grammar: | |
1391 | match-type = ":is" / ":contains" / ":matches" | |
1392 | ||
1393 | Arguments: | |
1394 | filter points to the Sieve filter including its state | |
1395 | m returns match type | |
1396 | ||
1397 | Returns: 1 success | |
1398 | 0 no match type found | |
1399 | */ | |
1400 | ||
1401 | static int parse_matchtype(struct Sieve *filter, enum MatchType *m) | |
1402 | { | |
1403 | if (parse_identifier(filter,CUS ":is")==1) | |
1404 | { | |
1405 | *m=MATCH_IS; | |
1406 | return 1; | |
1407 | } | |
1408 | else if (parse_identifier(filter,CUS ":contains")==1) | |
1409 | { | |
1410 | *m=MATCH_CONTAINS; | |
1411 | return 1; | |
1412 | } | |
1413 | else if (parse_identifier(filter,CUS ":matches")==1) | |
1414 | { | |
1415 | *m=MATCH_MATCHES; | |
1416 | return 1; | |
1417 | } | |
1418 | else return 0; | |
1419 | } | |
1420 | ||
1421 | ||
1422 | /************************************************* | |
1423 | * Parse and interpret an optional test list * | |
1424 | *************************************************/ | |
1425 | ||
1426 | /* | |
1427 | Grammar: | |
1428 | test-list = "(" test *("," test) ")" | |
1429 | ||
1430 | Arguments: | |
1431 | filter points to the Sieve filter including its state | |
1432 | n total number of tests | |
1433 | true number of passed tests | |
1434 | exec Execute parsed statements | |
1435 | ||
1436 | Returns: 1 success | |
1437 | 0 no test list found | |
1438 | -1 syntax or execution error | |
1439 | */ | |
1440 | ||
1441 | static int parse_testlist(struct Sieve *filter, int *n, int *true, int exec) | |
1442 | { | |
1443 | if (parse_white(filter)==-1) return -1; | |
1444 | if (*filter->pc=='(') | |
1445 | { | |
1446 | ++filter->pc; | |
1447 | *n=0; | |
1448 | *true=0; | |
1449 | for (;;) | |
1450 | { | |
1451 | int cond; | |
1452 | ||
1453 | switch (parse_test(filter,&cond,exec)) | |
1454 | { | |
1455 | case -1: return -1; | |
1456 | case 0: filter->errmsg=CUS "missing test"; return -1; | |
1457 | default: ++*n; if (cond) ++*true; break; | |
1458 | } | |
1459 | if (parse_white(filter)==-1) return -1; | |
1460 | if (*filter->pc==',') ++filter->pc; | |
1461 | else break; | |
1462 | } | |
1463 | if (*filter->pc==')') | |
1464 | { | |
1465 | ++filter->pc; | |
1466 | return 1; | |
1467 | } | |
1468 | else | |
1469 | { | |
1470 | filter->errmsg=CUS "missing closing paren"; | |
1471 | return -1; | |
1472 | } | |
1473 | } | |
1474 | else return 0; | |
1475 | } | |
1476 | ||
1477 | ||
1478 | /************************************************* | |
1479 | * Parse and interpret an optional test * | |
1480 | *************************************************/ | |
1481 | ||
1482 | /* | |
1483 | Arguments: | |
1484 | filter points to the Sieve filter including its state | |
1485 | cond returned condition status | |
1486 | exec Execute parsed statements | |
1487 | ||
1488 | Returns: 1 success | |
1489 | 0 no test found | |
1490 | -1 syntax or execution error | |
1491 | */ | |
1492 | ||
1493 | static int parse_test(struct Sieve *filter, int *cond, int exec) | |
1494 | { | |
1495 | if (parse_white(filter)==-1) return -1; | |
1496 | if (parse_identifier(filter,CUS "address")) | |
1497 | { | |
1498 | /* | |
1499 | address-test = "address" { [address-part] [comparator] [match-type] } | |
1500 | <header-list: string-list> <key-list: string-list> | |
1501 | ||
1502 | header-list From, To, Cc, Bcc, Sender, Resent-From, Resent-To | |
1503 | */ | |
1504 | ||
1505 | enum AddressPart addressPart=ADDRPART_ALL; | |
5ea81592 | 1506 | enum Comparator comparator=COMP_EN_ASCII_CASEMAP; |
059ec3d9 PH |
1507 | enum MatchType matchType=MATCH_IS; |
1508 | struct String *hdr,*h,*key,*k; | |
1509 | int m; | |
1510 | int ap=0,co=0,mt=0; | |
1511 | ||
1512 | for (;;) | |
1513 | { | |
1514 | if (parse_white(filter)==-1) return -1; | |
1515 | if ((m=parse_addresspart(filter,&addressPart))!=0) | |
1516 | { | |
1517 | if (m==-1) return -1; | |
1518 | if (ap) | |
1519 | { | |
1520 | filter->errmsg=CUS "address part already specified"; | |
1521 | return -1; | |
1522 | } | |
1523 | else ap=1; | |
1524 | } | |
1525 | else if ((m=parse_comparator(filter,&comparator))!=0) | |
1526 | { | |
1527 | if (m==-1) return -1; | |
1528 | if (co) | |
1529 | { | |
1530 | filter->errmsg=CUS "comparator already specified"; | |
1531 | return -1; | |
1532 | } | |
1533 | else co=1; | |
1534 | } | |
1535 | else if ((m=parse_matchtype(filter,&matchType))!=0) | |
1536 | { | |
1537 | if (m==-1) return -1; | |
1538 | if (mt) | |
1539 | { | |
1540 | filter->errmsg=CUS "match type already specified"; | |
1541 | return -1; | |
1542 | } | |
1543 | else mt=1; | |
1544 | } | |
1545 | else break; | |
1546 | } | |
1547 | if (parse_white(filter)==-1) return -1; | |
1548 | if ((m=parse_stringlist(filter,&hdr))!=1) | |
1549 | { | |
1550 | if (m==0) filter->errmsg=CUS "header string list expected"; | |
1551 | return -1; | |
1552 | } | |
1553 | if (parse_white(filter)==-1) return -1; | |
1554 | if ((m=parse_stringlist(filter,&key))!=1) | |
1555 | { | |
1556 | if (m==0) filter->errmsg=CUS "key string list expected"; | |
1557 | return -1; | |
1558 | } | |
1559 | *cond=0; | |
1560 | for (h=hdr; h->length!=-1 && !*cond; ++h) | |
1561 | { | |
1562 | uschar *header_value=(uschar*)0,*extracted_addr,*end_addr; | |
1563 | ||
1564 | if | |
1565 | ( | |
1566 | !eq_asciicase(h,&str_from,0) | |
1567 | && !eq_asciicase(h,&str_to,0) | |
1568 | && !eq_asciicase(h,&str_cc,0) | |
1569 | && !eq_asciicase(h,&str_bcc,0) | |
1570 | && !eq_asciicase(h,&str_sender,0) | |
1571 | && !eq_asciicase(h,&str_resent_from,0) | |
1572 | && !eq_asciicase(h,&str_resent_to,0) | |
1573 | ) | |
1574 | { | |
1575 | filter->errmsg=CUS "invalid header field"; | |
1576 | return -1; | |
1577 | } | |
1578 | if (exec) | |
1579 | { | |
1580 | /* We are only interested in addresses below, so no MIME decoding */ | |
1581 | header_value=expand_string(string_sprintf("$rheader_%s",quote(h))); | |
1582 | if (header_value == NULL) | |
1583 | { | |
1584 | filter->errmsg=CUS "header string expansion failed"; | |
1585 | return -1; | |
1586 | } | |
1587 | parse_allow_group = TRUE; | |
1588 | while (*header_value && !*cond) | |
1589 | { | |
1590 | uschar *error; | |
1591 | int start, end, domain; | |
1592 | int saveend; | |
1593 | uschar *part=NULL; | |
1594 | ||
1595 | end_addr = parse_find_address_end(header_value, FALSE); | |
1596 | saveend = *end_addr; | |
1597 | *end_addr = 0; | |
1598 | extracted_addr = parse_extract_address(header_value, &error, &start, &end, &domain, FALSE); | |
1599 | ||
1600 | if (extracted_addr) switch (addressPart) | |
1601 | { | |
1602 | case ADDRPART_ALL: part=extracted_addr; break; | |
1603 | #ifdef SUBADDRESS | |
1604 | case ADDRPART_USER: | |
1605 | #endif | |
1606 | case ADDRPART_LOCALPART: part=extracted_addr; part[domain-1]='\0'; break; | |
1607 | case ADDRPART_DOMAIN: part=extracted_addr+domain; break; | |
1608 | #ifdef SUBADDRESS | |
e4a89c47 | 1609 | case ADDRPART_DETAIL: part=NULL; break; |
059ec3d9 | 1610 | #endif |
059ec3d9 PH |
1611 | } |
1612 | ||
1613 | *end_addr = saveend; | |
1614 | if (part) | |
1615 | { | |
1616 | for (k=key; k->length!=-1; ++k) | |
1617 | { | |
1618 | struct String partStr; | |
1619 | ||
1620 | partStr.character=part; | |
1621 | partStr.length=Ustrlen(part); | |
1622 | if (extracted_addr) | |
1623 | { | |
1624 | *cond=compare(filter,k,&partStr,comparator,matchType); | |
1625 | if (*cond==-1) return -1; | |
1626 | if (*cond) break; | |
1627 | } | |
1628 | } | |
1629 | } | |
1630 | if (saveend == 0) break; | |
1631 | header_value = end_addr + 1; | |
1632 | } | |
1633 | } | |
1634 | } | |
1635 | return 1; | |
1636 | } | |
1637 | else if (parse_identifier(filter,CUS "allof")) | |
1638 | { | |
1639 | /* | |
1640 | allof-test = "allof" <tests: test-list> | |
1641 | */ | |
1642 | ||
1643 | int n,true; | |
1644 | ||
1645 | switch (parse_testlist(filter,&n,&true,exec)) | |
1646 | { | |
1647 | case -1: return -1; | |
1648 | case 0: filter->errmsg=CUS "missing test list"; return -1; | |
1649 | default: *cond=(n==true); return 1; | |
1650 | } | |
1651 | } | |
1652 | else if (parse_identifier(filter,CUS "anyof")) | |
1653 | { | |
1654 | /* | |
1655 | anyof-test = "anyof" <tests: test-list> | |
1656 | */ | |
1657 | ||
1658 | int n,true; | |
1659 | ||
1660 | switch (parse_testlist(filter,&n,&true,exec)) | |
1661 | { | |
1662 | case -1: return -1; | |
1663 | case 0: filter->errmsg=CUS "missing test list"; return -1; | |
1664 | default: *cond=(true>0); return 1; | |
1665 | } | |
1666 | } | |
1667 | else if (parse_identifier(filter,CUS "exists")) | |
1668 | { | |
1669 | /* | |
1670 | exists-test = "exists" <header-names: string-list> | |
1671 | */ | |
1672 | ||
1673 | struct String *hdr,*h; | |
1674 | int m; | |
1675 | ||
1676 | if (parse_white(filter)==-1) return -1; | |
1677 | if ((m=parse_stringlist(filter,&hdr))!=1) | |
1678 | { | |
1679 | if (m==0) filter->errmsg=CUS "header string list expected"; | |
1680 | return -1; | |
1681 | } | |
1682 | if (exec) | |
1683 | { | |
1684 | *cond=1; | |
1685 | for (h=hdr; h->length!=-1 && *cond; ++h) | |
1686 | { | |
1687 | uschar *header_def; | |
1688 | ||
1689 | header_def=expand_string(string_sprintf("${if def:header_%s {true}{false}}",quote(h))); | |
1690 | if (header_def == NULL) | |
1691 | { | |
1692 | filter->errmsg=CUS "header string expansion failed"; | |
1693 | return -1; | |
1694 | } | |
1695 | if (Ustrcmp(header_def,"false")==0) *cond=0; | |
1696 | } | |
1697 | } | |
1698 | return 1; | |
1699 | } | |
1700 | else if (parse_identifier(filter,CUS "false")) | |
1701 | { | |
1702 | /* | |
1703 | false-test = "false" | |
1704 | */ | |
1705 | ||
1706 | *cond=0; | |
1707 | return 1; | |
1708 | } | |
1709 | else if (parse_identifier(filter,CUS "header")) | |
1710 | { | |
1711 | /* | |
1712 | header-test = "header" { [comparator] [match-type] } | |
1713 | <header-names: string-list> <key-list: string-list> | |
1714 | */ | |
1715 | ||
5ea81592 | 1716 | enum Comparator comparator=COMP_EN_ASCII_CASEMAP; |
059ec3d9 PH |
1717 | enum MatchType matchType=MATCH_IS; |
1718 | struct String *hdr,*h,*key,*k; | |
1719 | int m; | |
1720 | int co=0,mt=0; | |
1721 | ||
1722 | for (;;) | |
1723 | { | |
1724 | if (parse_white(filter)==-1) return -1; | |
1725 | if ((m=parse_comparator(filter,&comparator))!=0) | |
1726 | { | |
1727 | if (m==-1) return -1; | |
1728 | if (co) | |
1729 | { | |
1730 | filter->errmsg=CUS "comparator already specified"; | |
1731 | return -1; | |
1732 | } | |
1733 | else co=1; | |
1734 | } | |
1735 | else if ((m=parse_matchtype(filter,&matchType))!=0) | |
1736 | { | |
1737 | if (m==-1) return -1; | |
1738 | if (mt) | |
1739 | { | |
1740 | filter->errmsg=CUS "match type already specified"; | |
1741 | return -1; | |
1742 | } | |
1743 | else mt=1; | |
1744 | } | |
1745 | else break; | |
1746 | } | |
1747 | if (parse_white(filter)==-1) return -1; | |
1748 | if ((m=parse_stringlist(filter,&hdr))!=1) | |
1749 | { | |
1750 | if (m==0) filter->errmsg=CUS "header string list expected"; | |
1751 | return -1; | |
1752 | } | |
1753 | if (parse_white(filter)==-1) return -1; | |
1754 | if ((m=parse_stringlist(filter,&key))!=1) | |
1755 | { | |
1756 | if (m==0) filter->errmsg=CUS "key string list expected"; | |
1757 | return -1; | |
1758 | } | |
1759 | *cond=0; | |
1760 | for (h=hdr; h->length!=-1 && !*cond; ++h) | |
1761 | { | |
1762 | if (!is_header(h)) | |
1763 | { | |
1764 | filter->errmsg=CUS "invalid header field"; | |
1765 | return -1; | |
1766 | } | |
1767 | if (exec) | |
1768 | { | |
1769 | struct String header_value; | |
1770 | uschar *header_def; | |
1771 | ||
1772 | expand_header(&header_value,h); | |
1773 | header_def=expand_string(string_sprintf("${if def:header_%s {true}{false}}",quote(h))); | |
1774 | if (header_value.character == NULL || header_def == NULL) | |
1775 | { | |
1776 | filter->errmsg=CUS "header string expansion failed"; | |
1777 | return -1; | |
1778 | } | |
1779 | for (k=key; k->length!=-1; ++k) | |
1780 | { | |
1781 | if (Ustrcmp(header_def,"true")==0) | |
1782 | { | |
1783 | *cond=compare(filter,k,&header_value,comparator,matchType); | |
1784 | if (*cond==-1) return -1; | |
1785 | if (*cond) break; | |
1786 | } | |
1787 | } | |
1788 | } | |
1789 | } | |
1790 | return 1; | |
1791 | } | |
1792 | else if (parse_identifier(filter,CUS "not")) | |
1793 | { | |
1794 | if (parse_white(filter)==-1) return -1; | |
1795 | switch (parse_test(filter,cond,exec)) | |
1796 | { | |
1797 | case -1: return -1; | |
1798 | case 0: filter->errmsg=CUS "missing test"; return -1; | |
1799 | default: *cond=!*cond; return 1; | |
1800 | } | |
1801 | } | |
1802 | else if (parse_identifier(filter,CUS "size")) | |
1803 | { | |
1804 | /* | |
1805 | relop = ":over" / ":under" | |
1806 | size-test = "size" relop <limit: number> | |
1807 | */ | |
1808 | ||
1809 | unsigned long limit; | |
1810 | int overNotUnder; | |
1811 | ||
1812 | if (parse_white(filter)==-1) return -1; | |
1813 | if (parse_identifier(filter,CUS ":over")) overNotUnder=1; | |
1814 | else if (parse_identifier(filter,CUS ":under")) overNotUnder=0; | |
1815 | else | |
1816 | { | |
1817 | filter->errmsg=CUS "missing :over or :under"; | |
1818 | return -1; | |
1819 | } | |
1820 | if (parse_white(filter)==-1) return -1; | |
1821 | if (parse_number(filter,&limit)==-1) return -1; | |
1822 | *cond=(overNotUnder ? (message_size>limit) : (message_size<limit)); | |
1823 | return 1; | |
1824 | } | |
1825 | else if (parse_identifier(filter,CUS "true")) | |
1826 | { | |
1827 | *cond=1; | |
1828 | return 1; | |
1829 | } | |
1830 | else if (parse_identifier(filter,CUS "envelope")) | |
1831 | { | |
1832 | /* | |
1833 | envelope-test = "envelope" { [comparator] [address-part] [match-type] } | |
1834 | <envelope-part: string-list> <key-list: string-list> | |
1835 | ||
1836 | envelope-part is case insensitive "from" or "to" | |
1837 | */ | |
1838 | ||
5ea81592 | 1839 | enum Comparator comparator=COMP_EN_ASCII_CASEMAP; |
059ec3d9 PH |
1840 | enum AddressPart addressPart=ADDRPART_ALL; |
1841 | enum MatchType matchType=MATCH_IS; | |
1842 | struct String *env,*e,*key,*k; | |
1843 | int m; | |
1844 | int co=0,ap=0,mt=0; | |
1845 | ||
1846 | if (!filter->require_envelope) | |
1847 | { | |
1848 | filter->errmsg=CUS "missing previous require \"envelope\";"; | |
1849 | return -1; | |
1850 | } | |
1851 | for (;;) | |
1852 | { | |
1853 | if (parse_white(filter)==-1) return -1; | |
1854 | if ((m=parse_comparator(filter,&comparator))!=0) | |
1855 | { | |
1856 | if (m==-1) return -1; | |
1857 | if (co) | |
1858 | { | |
1859 | filter->errmsg=CUS "comparator already specified"; | |
1860 | return -1; | |
1861 | } | |
1862 | else co=1; | |
1863 | } | |
1864 | else if ((m=parse_addresspart(filter,&addressPart))!=0) | |
1865 | { | |
1866 | if (m==-1) return -1; | |
1867 | if (ap) | |
1868 | { | |
1869 | filter->errmsg=CUS "address part already specified"; | |
1870 | return -1; | |
1871 | } | |
1872 | else ap=1; | |
1873 | } | |
1874 | else if ((m=parse_matchtype(filter,&matchType))!=0) | |
1875 | { | |
1876 | if (m==-1) return -1; | |
1877 | if (mt) | |
1878 | { | |
1879 | filter->errmsg=CUS "match type already specified"; | |
1880 | return -1; | |
1881 | } | |
1882 | else mt=1; | |
1883 | } | |
1884 | else break; | |
1885 | } | |
1886 | if (parse_white(filter)==-1) return -1; | |
1887 | if ((m=parse_stringlist(filter,&env))!=1) | |
1888 | { | |
1889 | if (m==0) filter->errmsg=CUS "envelope string list expected"; | |
1890 | return -1; | |
1891 | } | |
1892 | if (parse_white(filter)==-1) return -1; | |
1893 | if ((m=parse_stringlist(filter,&key))!=1) | |
1894 | { | |
1895 | if (m==0) filter->errmsg=CUS "key string list expected"; | |
1896 | return -1; | |
1897 | } | |
1898 | *cond=0; | |
87fcc8b9 | 1899 | for (e=env; e->length!=-1 && !*cond; ++e) |
059ec3d9 PH |
1900 | { |
1901 | const uschar *envelopeExpr=CUS 0; | |
1902 | uschar *envelope=US 0; | |
1903 | ||
1904 | if (eq_asciicase(e,&str_from,0)) | |
1905 | { | |
1906 | switch (addressPart) | |
1907 | { | |
1908 | case ADDRPART_ALL: envelopeExpr=CUS "$sender_address"; break; | |
1909 | #ifdef SUBADDRESS | |
1910 | case ADDRPART_USER: | |
1911 | #endif | |
1912 | case ADDRPART_LOCALPART: envelopeExpr=CUS "${local_part:$sender_address}"; break; | |
1913 | case ADDRPART_DOMAIN: envelopeExpr=CUS "${domain:$sender_address}"; break; | |
1914 | #ifdef SUBADDRESS | |
e4a89c47 | 1915 | case ADDRPART_DETAIL: envelopeExpr=CUS 0; break; |
059ec3d9 PH |
1916 | #endif |
1917 | } | |
1918 | } | |
1919 | else if (eq_asciicase(e,&str_to,0)) | |
1920 | { | |
1921 | switch (addressPart) | |
1922 | { | |
1923 | case ADDRPART_ALL: envelopeExpr=CUS "$local_part_prefix$local_part$local_part_suffix@$domain"; break; | |
1924 | #ifdef SUBADDRESS | |
e4a89c47 PH |
1925 | case ADDRPART_USER: envelopeExpr=filter->useraddress; break; |
1926 | case ADDRPART_DETAIL: envelopeExpr=filter->subaddress; break; | |
059ec3d9 PH |
1927 | #endif |
1928 | case ADDRPART_LOCALPART: envelopeExpr=CUS "$local_part_prefix$local_part$local_part_suffix"; break; | |
1929 | case ADDRPART_DOMAIN: envelopeExpr=CUS "$domain"; break; | |
1930 | } | |
1931 | } | |
1932 | else | |
1933 | { | |
1934 | filter->errmsg=CUS "invalid envelope string"; | |
1935 | return -1; | |
1936 | } | |
1937 | if (exec && envelopeExpr) | |
1938 | { | |
1939 | if ((envelope=expand_string(US envelopeExpr)) == NULL) | |
1940 | { | |
1941 | filter->errmsg=CUS "header string expansion failed"; | |
1942 | return -1; | |
1943 | } | |
1944 | for (k=key; k->length!=-1; ++k) | |
1945 | { | |
1946 | struct String envelopeStr; | |
1947 | ||
1948 | envelopeStr.character=envelope; | |
1949 | envelopeStr.length=Ustrlen(envelope); | |
7fe1560f | 1950 | *cond=compare(filter,k,&envelopeStr,comparator,matchType); |
059ec3d9 PH |
1951 | if (*cond==-1) return -1; |
1952 | if (*cond) break; | |
1953 | } | |
1954 | } | |
1955 | } | |
1956 | return 1; | |
1957 | } | |
1958 | else return 0; | |
1959 | } | |
1960 | ||
1961 | ||
1962 | /************************************************* | |
1963 | * Parse and interpret an optional block * | |
1964 | *************************************************/ | |
1965 | ||
1966 | /* | |
1967 | Arguments: | |
1968 | filter points to the Sieve filter including its state | |
1969 | exec Execute parsed statements | |
1970 | generated where to hang newly-generated addresses | |
1971 | ||
1972 | Returns: 2 success by stop | |
1973 | 1 other success | |
1974 | 0 no block command found | |
1975 | -1 syntax or execution error | |
1976 | */ | |
1977 | ||
1978 | static int parse_block(struct Sieve *filter, int exec, | |
1979 | address_item **generated) | |
1980 | { | |
1981 | int r; | |
1982 | ||
1983 | if (parse_white(filter)==-1) return -1; | |
1984 | if (*filter->pc=='{') | |
1985 | { | |
1986 | ++filter->pc; | |
1987 | if ((r=parse_commands(filter,exec,generated))==-1 || r==2) return r; | |
1988 | if (*filter->pc=='}') | |
1989 | { | |
1990 | ++filter->pc; | |
1991 | return 1; | |
1992 | } | |
1993 | else | |
1994 | { | |
8e669ac1 | 1995 | filter->errmsg=CUS "expecting command or closing brace"; |
059ec3d9 PH |
1996 | return -1; |
1997 | } | |
1998 | } | |
1999 | else return 0; | |
2000 | } | |
2001 | ||
2002 | ||
2003 | /************************************************* | |
2004 | * Match a semicolon * | |
2005 | *************************************************/ | |
2006 | ||
2007 | /* | |
2008 | Arguments: | |
2009 | filter points to the Sieve filter including its state | |
2010 | ||
2011 | Returns: 1 success | |
2012 | -1 syntax error | |
2013 | */ | |
2014 | ||
2015 | static int parse_semicolon(struct Sieve *filter) | |
2016 | { | |
2017 | if (parse_white(filter)==-1) return -1; | |
2018 | if (*filter->pc==';') | |
2019 | { | |
2020 | ++filter->pc; | |
2021 | return 1; | |
2022 | } | |
2023 | else | |
2024 | { | |
2025 | filter->errmsg=CUS "missing semicolon"; | |
2026 | return -1; | |
2027 | } | |
2028 | } | |
2029 | ||
2030 | ||
2031 | /************************************************* | |
2032 | * Parse and interpret a Sieve command * | |
2033 | *************************************************/ | |
2034 | ||
2035 | /* | |
2036 | Arguments: | |
2037 | filter points to the Sieve filter including its state | |
2038 | exec Execute parsed statements | |
2039 | generated where to hang newly-generated addresses | |
2040 | ||
2041 | Returns: 2 success by stop | |
2042 | 1 other success | |
2043 | -1 syntax or execution error | |
2044 | */ | |
2045 | static int parse_commands(struct Sieve *filter, int exec, | |
2046 | address_item **generated) | |
2047 | { | |
2048 | while (*filter->pc) | |
2049 | { | |
2050 | if (parse_white(filter)==-1) return -1; | |
2051 | if (parse_identifier(filter,CUS "if")) | |
2052 | { | |
2053 | /* | |
2054 | if-command = "if" test block *( "elsif" test block ) [ else block ] | |
2055 | */ | |
2056 | ||
2057 | int cond,m,unsuccessful; | |
2058 | ||
2059 | /* test block */ | |
2060 | if (parse_white(filter)==-1) return -1; | |
2061 | if ((m=parse_test(filter,&cond,exec))==-1) return -1; | |
2062 | if (m==0) | |
2063 | { | |
2064 | filter->errmsg=CUS "missing test"; | |
2065 | return -1; | |
2066 | } | |
87fcc8b9 PH |
2067 | if ((filter_test != FTEST_NONE && debug_selector != 0) || |
2068 | (debug_selector & D_filter) != 0) | |
2069 | { | |
2070 | if (exec) debug_printf("if %s\n",cond?"true":"false"); | |
2071 | } | |
059ec3d9 PH |
2072 | m=parse_block(filter,exec ? cond : 0, generated); |
2073 | if (m==-1 || m==2) return m; | |
2074 | if (m==0) | |
2075 | { | |
2076 | filter->errmsg=CUS "missing block"; | |
2077 | return -1; | |
2078 | } | |
2079 | unsuccessful = !cond; | |
2080 | for (;;) /* elsif test block */ | |
2081 | { | |
2082 | if (parse_white(filter)==-1) return -1; | |
2083 | if (parse_identifier(filter,CUS "elsif")) | |
2084 | { | |
2085 | if (parse_white(filter)==-1) return -1; | |
2086 | m=parse_test(filter,&cond,exec && unsuccessful); | |
2087 | if (m==-1 || m==2) return m; | |
2088 | if (m==0) | |
2089 | { | |
2090 | filter->errmsg=CUS "missing test"; | |
2091 | return -1; | |
2092 | } | |
87fcc8b9 PH |
2093 | if ((filter_test != FTEST_NONE && debug_selector != 0) || |
2094 | (debug_selector & D_filter) != 0) | |
2095 | { | |
2096 | if (exec) debug_printf("elsif %s\n",cond?"true":"false"); | |
2097 | } | |
059ec3d9 PH |
2098 | m=parse_block(filter,exec && unsuccessful ? cond : 0, generated); |
2099 | if (m==-1 || m==2) return m; | |
2100 | if (m==0) | |
2101 | { | |
2102 | filter->errmsg=CUS "missing block"; | |
2103 | return -1; | |
2104 | } | |
2105 | if (exec && unsuccessful && cond) unsuccessful = 0; | |
2106 | } | |
2107 | else break; | |
2108 | } | |
2109 | /* else block */ | |
2110 | if (parse_white(filter)==-1) return -1; | |
2111 | if (parse_identifier(filter,CUS "else")) | |
2112 | { | |
2113 | m=parse_block(filter,exec && unsuccessful, generated); | |
2114 | if (m==-1 || m==2) return m; | |
2115 | if (m==0) | |
2116 | { | |
2117 | filter->errmsg=CUS "missing block"; | |
2118 | return -1; | |
2119 | } | |
2120 | } | |
2121 | } | |
2122 | else if (parse_identifier(filter,CUS "stop")) | |
2123 | { | |
2124 | /* | |
2125 | stop-command = "stop" { stop-options } ";" | |
2126 | stop-options = | |
2127 | */ | |
2128 | ||
2129 | if (parse_semicolon(filter)==-1) return -1; | |
2130 | if (exec) | |
2131 | { | |
2132 | filter->pc+=Ustrlen(filter->pc); | |
2133 | return 2; | |
2134 | } | |
2135 | } | |
2136 | else if (parse_identifier(filter,CUS "keep")) | |
2137 | { | |
2138 | /* | |
2139 | keep-command = "keep" { keep-options } ";" | |
2140 | keep-options = | |
2141 | */ | |
2142 | ||
2143 | if (parse_semicolon(filter)==-1) return -1; | |
2144 | if (exec) | |
2145 | { | |
2146 | add_addr(generated,US"inbox",1,0,0,0); | |
2147 | filter->keep = 0; | |
2148 | } | |
2149 | } | |
2150 | else if (parse_identifier(filter,CUS "discard")) | |
2151 | { | |
2152 | /* | |
2153 | discard-command = "discard" { discard-options } ";" | |
2154 | discard-options = | |
2155 | */ | |
2156 | ||
2157 | if (parse_semicolon(filter)==-1) return -1; | |
2158 | if (exec) filter->keep=0; | |
2159 | } | |
2160 | else if (parse_identifier(filter,CUS "redirect")) | |
2161 | { | |
2162 | /* | |
2163 | redirect-command = "redirect" redirect-options "string" ";" | |
2164 | redirect-options = | |
2165 | redirect-options =) ":copy" | |
2166 | */ | |
2167 | ||
2168 | struct String recipient; | |
2169 | int m; | |
2170 | int copy=0; | |
2171 | ||
2172 | for (;;) | |
2173 | { | |
2174 | if (parse_white(filter)==-1) return -1; | |
2175 | if (parse_identifier(filter,CUS ":copy")==1) | |
2176 | { | |
2177 | if (!filter->require_copy) | |
2178 | { | |
2179 | filter->errmsg=CUS "missing previous require \"copy\";"; | |
2180 | return -1; | |
2181 | } | |
2182 | copy=1; | |
2183 | } | |
2184 | else break; | |
2185 | } | |
2186 | if (parse_white(filter)==-1) return -1; | |
2187 | if ((m=parse_string(filter,&recipient))!=1) | |
2188 | { | |
2189 | if (m==0) filter->errmsg=CUS "missing redirect recipient string"; | |
2190 | return -1; | |
2191 | } | |
2192 | if (strchr(CCS recipient.character,'@')==(char*)0) | |
2193 | { | |
2194 | filter->errmsg=CUS "unqualified recipient address"; | |
2195 | return -1; | |
2196 | } | |
2197 | if (exec) | |
2198 | { | |
2199 | add_addr(generated,recipient.character,0,0,0,0); | |
2200 | if (!copy) filter->keep = 0; | |
2201 | } | |
2202 | if (parse_semicolon(filter)==-1) return -1; | |
2203 | } | |
2204 | else if (parse_identifier(filter,CUS "fileinto")) | |
2205 | { | |
2206 | /* | |
2207 | fileinto-command = "fileinto" { fileinto-options } string ";" | |
2208 | fileinto-options = | |
2209 | fileinto-options =) [ ":copy" ] | |
87fcc8b9 | 2210 | */ |
059ec3d9 PH |
2211 | |
2212 | struct String folder; | |
2213 | uschar *s; | |
2214 | int m; | |
2215 | unsigned long maxage, maxmessages, maxstorage; | |
2216 | int copy=0; | |
2217 | ||
2218 | maxage = maxmessages = maxstorage = 0; | |
2219 | if (!filter->require_fileinto) | |
2220 | { | |
2221 | filter->errmsg=CUS "missing previous require \"fileinto\";"; | |
2222 | return -1; | |
2223 | } | |
2224 | for (;;) | |
2225 | { | |
2226 | if (parse_white(filter)==-1) return -1; | |
2227 | if (parse_identifier(filter,CUS ":copy")==1) | |
2228 | { | |
2229 | if (!filter->require_copy) | |
2230 | { | |
2231 | filter->errmsg=CUS "missing previous require \"copy\";"; | |
2232 | return -1; | |
2233 | } | |
2234 | copy=1; | |
2235 | } | |
2236 | else break; | |
2237 | } | |
2238 | if (parse_white(filter)==-1) return -1; | |
2239 | if ((m=parse_string(filter,&folder))!=1) | |
2240 | { | |
2241 | if (m==0) filter->errmsg=CUS "missing fileinto folder string"; | |
2242 | return -1; | |
2243 | } | |
2244 | m=0; s=folder.character; | |
2245 | if (folder.length==0) m=1; | |
2246 | if (Ustrcmp(s,"..")==0 || Ustrncmp(s,"../",3)==0) m=1; | |
2247 | else while (*s) | |
2248 | { | |
2249 | if (Ustrcmp(s,"/..")==0 || Ustrncmp(s,"/../",4)==0) { m=1; break; } | |
2250 | ++s; | |
2251 | } | |
2252 | if (m) | |
2253 | { | |
2254 | filter->errmsg=CUS "invalid folder"; | |
2255 | return -1; | |
2256 | } | |
2257 | if (exec) | |
2258 | { | |
2259 | add_addr(generated, folder.character, 1, maxage, maxmessages, maxstorage); | |
2260 | if (!copy) filter->keep = 0; | |
2261 | } | |
2262 | if (parse_semicolon(filter)==-1) return -1; | |
2263 | } | |
87fcc8b9 PH |
2264 | #ifdef NOTIFY |
2265 | else if (parse_identifier(filter,CUS "notify")) | |
2266 | { | |
2267 | /* | |
2268 | notify-command = "notify" { notify-options } ";" | |
2269 | notify-options = [":method" string] | |
2270 | [":message" string] | |
2271 | */ | |
2272 | ||
2273 | int m; | |
2274 | struct String method; | |
2275 | struct String message; | |
2276 | ||
2277 | if (!filter->require_notify) | |
2278 | { | |
2279 | filter->errmsg=CUS "missing previous require \"notify\";"; | |
2280 | return -1; | |
2281 | } | |
2282 | method.character=(uschar*)0; | |
2283 | method.length=-1; | |
2284 | message.character=(uschar*)0; | |
2285 | message.length=-1; | |
2286 | for (;;) | |
2287 | { | |
2288 | if (parse_white(filter)==-1) return -1; | |
2289 | if (parse_identifier(filter,CUS ":method")==1) | |
2290 | { | |
2291 | if (parse_white(filter)==-1) return -1; | |
2292 | if ((m=parse_string(filter,&method))!=1) | |
2293 | { | |
2294 | if (m==0) filter->errmsg=CUS "method string expected"; | |
2295 | return -1; | |
2296 | } | |
2297 | } | |
2298 | else if (parse_identifier(filter,CUS ":message")==1) | |
2299 | { | |
2300 | if (parse_white(filter)==-1) return -1; | |
2301 | if ((m=parse_string(filter,&message))!=1) | |
2302 | { | |
2303 | if (m==0) filter->errmsg=CUS "message string expected"; | |
2304 | return -1; | |
2305 | } | |
2306 | } | |
2307 | else break; | |
2308 | } | |
2309 | if (parse_semicolon(filter)==-1) return -1; | |
2310 | } | |
2311 | #endif | |
059ec3d9 PH |
2312 | #ifdef VACATION |
2313 | else if (parse_identifier(filter,CUS "vacation")) | |
2314 | { | |
2315 | /* | |
2316 | vacation-command = "vacation" { vacation-options } <reason: string> ";" | |
2317 | vacation-options = [":days" number] | |
059ec3d9 | 2318 | [":subject" string] |
f656d135 PH |
2319 | [":from" string] |
2320 | [":addresses" string-list] | |
059ec3d9 | 2321 | [":mime"] |
f656d135 | 2322 | [":handle" string] |
059ec3d9 PH |
2323 | */ |
2324 | ||
2325 | int m; | |
2326 | unsigned long days; | |
059ec3d9 | 2327 | struct String subject; |
f656d135 PH |
2328 | struct String from; |
2329 | struct String *addresses; | |
059ec3d9 PH |
2330 | int reason_is_mime; |
2331 | string_item *aliases; | |
f656d135 | 2332 | struct String handle; |
059ec3d9 PH |
2333 | struct String reason; |
2334 | ||
2335 | if (!filter->require_vacation) | |
2336 | { | |
2337 | filter->errmsg=CUS "missing previous require \"vacation\";"; | |
2338 | return -1; | |
2339 | } | |
2340 | if (exec) | |
2341 | { | |
2342 | if (filter->vacation_ran) | |
2343 | { | |
2344 | filter->errmsg=CUS "trying to execute vacation more than once"; | |
2345 | return -1; | |
2346 | } | |
2347 | filter->vacation_ran=1; | |
2348 | } | |
2349 | days=VACATION_MIN_DAYS>7 ? VACATION_MIN_DAYS : 7; | |
2350 | subject.character=(uschar*)0; | |
2351 | subject.length=-1; | |
f656d135 PH |
2352 | from.character=(uschar*)0; |
2353 | from.length=-1; | |
2354 | addresses=(struct String*)0; | |
059ec3d9 PH |
2355 | aliases=NULL; |
2356 | reason_is_mime=0; | |
f656d135 PH |
2357 | handle.character=(uschar*)0; |
2358 | handle.length=-1; | |
059ec3d9 PH |
2359 | for (;;) |
2360 | { | |
2361 | if (parse_white(filter)==-1) return -1; | |
2362 | if (parse_identifier(filter,CUS ":days")==1) | |
2363 | { | |
2364 | if (parse_white(filter)==-1) return -1; | |
2365 | if (parse_number(filter,&days)==-1) return -1; | |
2366 | if (days<VACATION_MIN_DAYS) days=VACATION_MIN_DAYS; | |
2367 | else if (days>VACATION_MAX_DAYS) days=VACATION_MAX_DAYS; | |
2368 | } | |
f656d135 PH |
2369 | else if (parse_identifier(filter,CUS ":subject")==1) |
2370 | { | |
2371 | if (parse_white(filter)==-1) return -1; | |
2372 | if ((m=parse_string(filter,&subject))!=1) | |
2373 | { | |
2374 | if (m==0) filter->errmsg=CUS "subject string expected"; | |
2375 | return -1; | |
2376 | } | |
2377 | } | |
2378 | else if (parse_identifier(filter,CUS ":from")==1) | |
2379 | { | |
2380 | int start, end, domain; | |
2381 | uschar *error,*ss; | |
2382 | ||
2383 | if (parse_white(filter)==-1) return -1; | |
2384 | if ((m=parse_string(filter,&from))!=1) | |
2385 | { | |
2386 | if (m==0) filter->errmsg=CUS "from string expected"; | |
2387 | return -1; | |
2388 | } | |
2389 | if (from.length>0) | |
2390 | { | |
2391 | ss = parse_extract_address(from.character, &error, &start, &end, &domain, | |
2392 | FALSE); | |
2393 | if (ss == NULL) | |
2394 | { | |
2395 | filter->errmsg=string_sprintf("malformed address \"%s\" in " | |
2396 | "Sieve filter: %s", from.character, error); | |
2397 | return -1; | |
2398 | } | |
2399 | } | |
2400 | else | |
2401 | { | |
2402 | filter->errmsg=CUS "empty :from address in Sieve filter"; | |
2403 | return -1; | |
2404 | } | |
2405 | } | |
059ec3d9 PH |
2406 | else if (parse_identifier(filter,CUS ":addresses")==1) |
2407 | { | |
2408 | struct String *a; | |
2409 | ||
2410 | if (parse_white(filter)==-1) return -1; | |
2411 | if ((m=parse_stringlist(filter,&addresses))!=1) | |
2412 | { | |
2413 | if (m==0) filter->errmsg=CUS "addresses string list expected"; | |
2414 | return -1; | |
2415 | } | |
2416 | for (a=addresses; a->length!=-1; ++a) | |
2417 | { | |
2418 | string_item *new; | |
2419 | ||
2420 | new=store_get(sizeof(string_item)); | |
2421 | new->text=store_get(a->length+1); | |
2422 | if (a->length) memcpy(new->text,a->character,a->length); | |
2423 | new->text[a->length]='\0'; | |
2424 | new->next=aliases; | |
2425 | aliases=new; | |
2426 | } | |
2427 | } | |
f656d135 PH |
2428 | else if (parse_identifier(filter,CUS ":mime")==1) |
2429 | reason_is_mime=1; | |
2430 | else if (parse_identifier(filter,CUS ":handle")==1) | |
059ec3d9 PH |
2431 | { |
2432 | if (parse_white(filter)==-1) return -1; | |
f656d135 | 2433 | if ((m=parse_string(filter,&from))!=1) |
059ec3d9 | 2434 | { |
f656d135 | 2435 | if (m==0) filter->errmsg=CUS "handle string expected"; |
059ec3d9 PH |
2436 | return -1; |
2437 | } | |
2438 | } | |
059ec3d9 PH |
2439 | else break; |
2440 | } | |
2441 | if (parse_white(filter)==-1) return -1; | |
2442 | if ((m=parse_string(filter,&reason))!=1) | |
2443 | { | |
2444 | if (m==0) filter->errmsg=CUS "missing reason string"; | |
2445 | return -1; | |
2446 | } | |
5ea81592 PH |
2447 | if (reason_is_mime) |
2448 | { | |
2449 | uschar *s,*end; | |
2450 | ||
2451 | for (s=reason.character,end=reason.character+reason.length; s<end && (*s&0x80)==0; ++s); | |
2452 | if (s<end) | |
2453 | { | |
2454 | filter->errmsg=CUS "MIME reason string contains 8bit text"; | |
2455 | return -1; | |
2456 | } | |
2457 | } | |
059ec3d9 PH |
2458 | if (parse_semicolon(filter)==-1) return -1; |
2459 | ||
2460 | if (exec) | |
2461 | { | |
2462 | address_item *addr; | |
2463 | int capacity,start; | |
2464 | uschar *buffer; | |
2465 | int buffer_capacity; | |
2466 | struct String key; | |
2467 | md5 base; | |
2468 | uschar digest[16]; | |
2469 | uschar hexdigest[33]; | |
2470 | int i; | |
2471 | uschar *once; | |
2472 | ||
2473 | if (filter_personal(aliases,TRUE)) | |
2474 | { | |
4929acf0 PH |
2475 | if (filter_test == FTEST_NONE) |
2476 | { | |
2477 | /* ensure oncelog directory exists; failure will be detected later */ | |
059ec3d9 | 2478 | |
4929acf0 PH |
2479 | (void)directory_make(NULL, filter->vacation_directory, 0700, FALSE); |
2480 | } | |
059ec3d9 PH |
2481 | /* build oncelog filename */ |
2482 | ||
2483 | key.character=(uschar*)0; | |
2484 | key.length=0; | |
2485 | capacity=0; | |
f656d135 | 2486 | if (handle.length==-1) |
8e669ac1 | 2487 | { |
f656d135 PH |
2488 | if (subject.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,subject.character,subject.length); |
2489 | if (from.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,from.character,from.length); | |
2490 | key.character=string_cat(key.character,&capacity,&key.length,reason_is_mime?US"1":US"0",1); | |
2491 | key.character=string_cat(key.character,&capacity,&key.length,reason.character,reason.length); | |
8e669ac1 | 2492 | } |
f656d135 PH |
2493 | else |
2494 | key=handle; | |
059ec3d9 PH |
2495 | md5_start(&base); |
2496 | md5_end(&base, key.character, key.length, digest); | |
2497 | for (i = 0; i < 16; i++) sprintf(CS (hexdigest+2*i), "%02X", digest[i]); | |
4929acf0 | 2498 | if (filter_test != FTEST_NONE) |
059ec3d9 | 2499 | { |
4929acf0 | 2500 | debug_printf("Sieve: mail was personal, vacation file basename: %s\n", hexdigest); |
059ec3d9 | 2501 | } |
4929acf0 | 2502 | else |
059ec3d9 | 2503 | { |
4929acf0 PH |
2504 | capacity=Ustrlen(filter->vacation_directory); |
2505 | start=capacity; | |
2506 | once=string_cat(filter->vacation_directory,&capacity,&start,US"/",1); | |
2507 | once=string_cat(once,&capacity,&start,hexdigest,33); | |
2508 | once[start] = '\0'; | |
2509 | ||
2510 | /* process subject */ | |
2511 | ||
2512 | if (subject.length==-1) | |
2513 | { | |
2514 | expand_header(&subject,&str_subject); | |
4929acf0 PH |
2515 | capacity=6; |
2516 | start=6; | |
2517 | subject.character=string_cat(US"Auto: ",&capacity,&start,subject.character,subject.length); | |
2518 | subject.length=start; | |
2519 | } | |
2520 | ||
2521 | /* add address to list of generated addresses */ | |
2522 | ||
2523 | addr = deliver_make_addr(string_sprintf(">%.256s", sender_address), FALSE); | |
2524 | setflag(addr, af_pfr); | |
2525 | setflag(addr, af_ignore_error); | |
2526 | addr->next = *generated; | |
2527 | *generated = addr; | |
2528 | addr->reply = store_get(sizeof(reply_item)); | |
2529 | memset(addr->reply,0,sizeof(reply_item)); /* XXX */ | |
2530 | addr->reply->to = string_copy(sender_address); | |
f656d135 PH |
2531 | if (from.length==-1) |
2532 | addr->reply->from = expand_string(US"$local_part@$domain"); | |
2533 | else | |
2534 | addr->reply->from = from.character; | |
4929acf0 PH |
2535 | /* Allocation is larger than neccessary, but enough even for split MIME words */ |
2536 | buffer_capacity=16+4*subject.length; | |
2537 | buffer=store_get(buffer_capacity); | |
2538 | addr->reply->subject=parse_quote_2047(subject.character, subject.length, US"utf-8", buffer, buffer_capacity); | |
2539 | addr->reply->oncelog=once; | |
2540 | addr->reply->once_repeat=days*86400; | |
2541 | ||
2542 | /* build body and MIME headers */ | |
2543 | ||
2544 | if (reason_is_mime) | |
2545 | { | |
2546 | uschar *mime_body,*reason_end; | |
059ec3d9 | 2547 | #ifdef RFC_EOL |
4929acf0 | 2548 | static const uschar nlnl[]="\r\n\r\n"; |
059ec3d9 | 2549 | #else |
4929acf0 | 2550 | static const uschar nlnl[]="\n\n"; |
059ec3d9 PH |
2551 | #endif |
2552 | ||
4929acf0 PH |
2553 | for |
2554 | ( | |
2555 | mime_body=reason.character,reason_end=reason.character+reason.length; | |
2556 | mime_body<(reason_end-sizeof(nlnl)-1) && memcmp(mime_body,nlnl,sizeof(nlnl)-1); | |
2557 | ++mime_body | |
2558 | ); | |
2559 | capacity = 0; | |
2560 | start = 0; | |
2561 | addr->reply->headers = string_cat(NULL,&capacity,&start,reason.character,mime_body-reason.character); | |
2562 | addr->reply->headers[start] = '\0'; | |
2563 | capacity = 0; | |
2564 | start = 0; | |
2565 | if (mime_body+(sizeof(nlnl)-1)<reason_end) mime_body+=sizeof(nlnl)-1; | |
2566 | else mime_body=reason_end-1; | |
2567 | addr->reply->text = string_cat(NULL,&capacity,&start,mime_body,reason_end-mime_body); | |
2568 | addr->reply->text[start] = '\0'; | |
2569 | } | |
2570 | else | |
2571 | { | |
2572 | struct String qp; | |
2573 | ||
2574 | capacity = 0; | |
2575 | start = reason.length; | |
2576 | addr->reply->headers = US"MIME-Version: 1.0\n" | |
2577 | "Content-Type: text/plain;\n" | |
2578 | "\tcharset=\"utf-8\"\n" | |
2579 | "Content-Transfer-Encoding: quoted-printable"; | |
2580 | addr->reply->text = quoted_printable_encode(&reason,&qp)->character; | |
2581 | } | |
059ec3d9 | 2582 | } |
4929acf0 PH |
2583 | } |
2584 | else if (filter_test != FTEST_NONE) | |
059ec3d9 | 2585 | { |
4929acf0 | 2586 | debug_printf("Sieve: mail was not personal, vacation would ignore it\n"); |
059ec3d9 | 2587 | } |
059ec3d9 PH |
2588 | } |
2589 | } | |
4929acf0 | 2590 | else break; |
059ec3d9 | 2591 | #endif |
059ec3d9 PH |
2592 | } |
2593 | return 1; | |
2594 | } | |
2595 | ||
2596 | ||
2597 | /************************************************* | |
2598 | * Parse and interpret a sieve filter * | |
2599 | *************************************************/ | |
2600 | ||
2601 | /* | |
2602 | Arguments: | |
2603 | filter points to the Sieve filter including its state | |
2604 | exec Execute parsed statements | |
2605 | generated where to hang newly-generated addresses | |
2606 | ||
2607 | Returns: 1 success | |
2608 | -1 syntax or execution error | |
2609 | */ | |
2610 | ||
2611 | static int parse_start(struct Sieve *filter, int exec, | |
2612 | address_item **generated) | |
2613 | { | |
2614 | filter->pc=filter->filter; | |
2615 | filter->line=1; | |
2616 | filter->keep=1; | |
2617 | filter->require_envelope=0; | |
2618 | filter->require_fileinto=0; | |
87fcc8b9 PH |
2619 | #ifdef NOTIFY |
2620 | filter->require_notify=0; | |
2621 | #endif | |
059ec3d9 PH |
2622 | #ifdef SUBADDRESS |
2623 | filter->require_subaddress=0; | |
2624 | #endif | |
2625 | #ifdef VACATION | |
2626 | filter->require_vacation=0; | |
2627 | filter->vacation_ran=0; | |
2628 | #endif | |
2629 | filter->require_copy=0; | |
2630 | filter->require_iascii_numeric=0; | |
2631 | ||
2632 | if (parse_white(filter)==-1) return -1; | |
2633 | ||
4929acf0 | 2634 | if (exec && filter->vacation_directory != NULL && filter_test == FTEST_NONE) |
059ec3d9 PH |
2635 | { |
2636 | DIR *oncelogdir; | |
2637 | struct dirent *oncelog; | |
2638 | struct stat properties; | |
2639 | time_t now; | |
2640 | ||
2641 | /* clean up old vacation log databases */ | |
2642 | ||
2643 | oncelogdir=opendir(CS filter->vacation_directory); | |
2644 | ||
2645 | if (oncelogdir ==(DIR*)0 && errno != ENOENT) | |
2646 | { | |
2647 | filter->errmsg=CUS "unable to open vacation directory"; | |
2648 | return -1; | |
2649 | } | |
2650 | ||
2651 | if (oncelogdir != NULL) | |
2652 | { | |
2653 | time(&now); | |
2654 | ||
2655 | while ((oncelog=readdir(oncelogdir))!=(struct dirent*)0) | |
2656 | { | |
2657 | if (strlen(oncelog->d_name)==32) | |
2658 | { | |
2659 | uschar *s=string_sprintf("%s/%s",filter->vacation_directory,oncelog->d_name); | |
2660 | if (Ustat(s,&properties)==0 && (properties.st_mtime+VACATION_MAX_DAYS*86400)<now) | |
2661 | Uunlink(s); | |
2662 | } | |
2663 | } | |
2664 | closedir(oncelogdir); | |
2665 | } | |
2666 | } | |
2667 | ||
2668 | while (parse_identifier(filter,CUS "require")) | |
2669 | { | |
2670 | /* | |
2671 | require-command = "require" <capabilities: string-list> | |
2672 | */ | |
2673 | ||
2674 | struct String *cap,*check; | |
2675 | int m; | |
2676 | ||
2677 | if (parse_white(filter)==-1) return -1; | |
2678 | if ((m=parse_stringlist(filter,&cap))!=1) | |
2679 | { | |
2680 | if (m==0) filter->errmsg=CUS "capability string list expected"; | |
2681 | return -1; | |
2682 | } | |
2683 | for (check=cap; check->character; ++check) | |
2684 | { | |
5ea81592 PH |
2685 | if (eq_octet(check,&str_envelope,0)) filter->require_envelope=1; |
2686 | else if (eq_octet(check,&str_fileinto,0)) filter->require_fileinto=1; | |
87fcc8b9 PH |
2687 | #ifdef NOTIFY |
2688 | else if (eq_octet(check,&str_notify,0)) filter->require_notify=1; | |
2689 | #endif | |
059ec3d9 | 2690 | #ifdef SUBADDRESS |
5ea81592 | 2691 | else if (eq_octet(check,&str_subaddress,0)) filter->require_subaddress=1; |
059ec3d9 PH |
2692 | #endif |
2693 | #ifdef VACATION | |
5ea81592 | 2694 | else if (eq_octet(check,&str_vacation,0)) |
059ec3d9 | 2695 | { |
4929acf0 | 2696 | if (filter_test == FTEST_NONE && filter->vacation_directory == NULL) |
059ec3d9 PH |
2697 | { |
2698 | filter->errmsg=CUS "vacation disabled"; | |
2699 | return -1; | |
2700 | } | |
2701 | filter->require_vacation=1; | |
2702 | } | |
2703 | #endif | |
5ea81592 PH |
2704 | else if (eq_octet(check,&str_copy,0)) filter->require_copy=1; |
2705 | else if (eq_octet(check,&str_comparator_ioctet,0)) ; | |
2706 | else if (eq_octet(check,&str_comparator_iascii_casemap,0)) ; | |
2707 | else if (eq_octet(check,&str_comparator_enascii_casemap,0)) ; | |
2708 | else if (eq_octet(check,&str_comparator_iascii_numeric,0)) filter->require_iascii_numeric=1; | |
059ec3d9 PH |
2709 | else |
2710 | { | |
2711 | filter->errmsg=CUS "unknown capability"; | |
2712 | return -1; | |
2713 | } | |
2714 | } | |
2715 | if (parse_semicolon(filter)==-1) return -1; | |
2716 | } | |
2717 | if (parse_commands(filter,exec,generated)==-1) return -1; | |
2718 | if (*filter->pc) | |
2719 | { | |
2720 | filter->errmsg=CUS "syntax error"; | |
2721 | return -1; | |
2722 | } | |
2723 | return 1; | |
2724 | } | |
2725 | ||
2726 | ||
2727 | /************************************************* | |
2728 | * Interpret a sieve filter file * | |
2729 | *************************************************/ | |
2730 | ||
2731 | /* | |
2732 | Arguments: | |
2733 | filter points to the entire file, read into store as a single string | |
2734 | options controls whether various special things are allowed, and requests | |
2735 | special actions (not currently used) | |
2736 | sieve_vacation_directory where to store vacation "once" files | |
e4a89c47 PH |
2737 | useraddress string expression for :user part of address |
2738 | subaddress string expression for :subaddress part of address | |
059ec3d9 PH |
2739 | generated where to hang newly-generated addresses |
2740 | error where to pass back an error text | |
2741 | ||
2742 | Returns: FF_DELIVERED success, a significant action was taken | |
2743 | FF_NOTDELIVERED success, no significant action | |
2744 | FF_DEFER defer requested | |
2745 | FF_FAIL fail requested | |
2746 | FF_FREEZE freeze requested | |
2747 | FF_ERROR there was a problem | |
2748 | */ | |
2749 | ||
2750 | int | |
2751 | sieve_interpret(uschar *filter, int options, uschar *vacation_directory, | |
e4a89c47 | 2752 | uschar *useraddress, uschar *subaddress, address_item **generated, uschar **error) |
059ec3d9 PH |
2753 | { |
2754 | struct Sieve sieve; | |
2755 | int r; | |
2756 | uschar *msg; | |
2757 | ||
2758 | options = options; /* Keep picky compilers happy */ | |
2759 | error = error; | |
2760 | ||
2761 | DEBUG(D_route) debug_printf("Sieve: start of processing\n"); | |
2762 | sieve.filter=filter; | |
2763 | ||
2764 | if (vacation_directory == NULL) | |
2765 | sieve.vacation_directory = NULL; | |
2766 | else | |
2767 | { | |
2768 | sieve.vacation_directory=expand_string(vacation_directory); | |
2769 | if (sieve.vacation_directory == NULL) | |
2770 | { | |
2771 | *error = string_sprintf("failed to expand \"%s\" " | |
2772 | "(sieve_vacation_directory): %s", vacation_directory, | |
2773 | expand_string_message); | |
2774 | return FF_ERROR; | |
2775 | } | |
2776 | } | |
2777 | ||
e4a89c47 PH |
2778 | sieve.useraddress = useraddress == NULL ? CUS "$local_part_prefix$local_part$local_part_suffix" : useraddress; |
2779 | sieve.subaddress = subaddress; | |
2780 | ||
059ec3d9 PH |
2781 | #ifdef COMPILE_SYNTAX_CHECKER |
2782 | if (parse_start(&sieve,0,generated)==1) | |
2783 | #else | |
2784 | if (parse_start(&sieve,1,generated)==1) | |
2785 | #endif | |
2786 | { | |
2787 | if (sieve.keep) | |
2788 | { | |
2789 | add_addr(generated,US"inbox",1,0,0,0); | |
1c59d63b | 2790 | msg = string_sprintf("Implicit keep"); |
059ec3d9 PH |
2791 | r = FF_DELIVERED; |
2792 | } | |
1c59d63b | 2793 | else |
059ec3d9 | 2794 | { |
1c59d63b | 2795 | msg = string_sprintf("No implicit keep"); |
059ec3d9 PH |
2796 | r = FF_DELIVERED; |
2797 | } | |
2798 | } | |
2799 | else | |
2800 | { | |
2801 | msg = string_sprintf("Sieve error: %s in line %d",sieve.errmsg,sieve.line); | |
2802 | #ifdef COMPILE_SYNTAX_CHECKER | |
2803 | r = FF_ERROR; | |
2804 | *error = msg; | |
2805 | #else | |
2806 | add_addr(generated,US"inbox",1,0,0,0); | |
2807 | r = FF_DELIVERED; | |
2808 | #endif | |
2809 | } | |
2810 | ||
2811 | #ifndef COMPILE_SYNTAX_CHECKER | |
f05da2e8 | 2812 | if (filter_test != FTEST_NONE) printf("%s\n", (const char*) msg); |
059ec3d9 PH |
2813 | else debug_printf("%s\n", msg); |
2814 | #endif | |
2815 | ||
2816 | DEBUG(D_route) debug_printf("Sieve: end of processing\n"); | |
2817 | return r; | |
2818 | } |