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5ea81592 | 1 | /* $Cambridge: exim/src/src/sieve.c,v 1.12 2005/06/17 10:47:05 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 | ||
31 | /* Define this for development of the subaddress Sieve extension. */ | |
5ea81592 | 32 | #define SUBADDRESS |
059ec3d9 | 33 | |
c3aea640 | 34 | /* Define this for the vacation Sieve extension. */ |
059ec3d9 PH |
35 | #define VACATION |
36 | ||
37 | /* Must be >= 1 */ | |
38 | #define VACATION_MIN_DAYS 1 | |
39 | /* Must be >= VACATION_MIN_DAYS, must be > 7, should be > 30 */ | |
40 | #define VACATION_MAX_DAYS 31 | |
41 | ||
42 | /* Keep this at 75 to accept only RFC compliant MIME words. */ | |
43 | /* Increase it if you want to match headers from buggy MUAs. */ | |
44 | #define MIMEWORD_LENGTH 75 | |
45 | ||
46 | struct Sieve | |
47 | { | |
48 | uschar *filter; | |
49 | const uschar *pc; | |
50 | int line; | |
51 | const uschar *errmsg; | |
52 | int keep; | |
53 | int require_envelope; | |
54 | int require_fileinto; | |
55 | #ifdef SUBADDRESS | |
56 | int require_subaddress; | |
57 | #endif | |
58 | #ifdef VACATION | |
59 | int require_vacation; | |
60 | int vacation_ran; | |
61 | #endif | |
62 | uschar *vacation_directory; | |
e4a89c47 PH |
63 | const uschar *subaddress; |
64 | const uschar *useraddress; | |
059ec3d9 PH |
65 | int require_copy; |
66 | int require_iascii_numeric; | |
67 | }; | |
68 | ||
5ea81592 | 69 | enum Comparator { COMP_OCTET, COMP_EN_ASCII_CASEMAP, COMP_ASCII_NUMERIC }; |
059ec3d9 PH |
70 | enum MatchType { MATCH_IS, MATCH_CONTAINS, MATCH_MATCHES }; |
71 | #ifdef SUBADDRESS | |
72 | enum AddressPart { ADDRPART_USER, ADDRPART_DETAIL, ADDRPART_LOCALPART, ADDRPART_DOMAIN, ADDRPART_ALL }; | |
73 | #else | |
74 | enum AddressPart { ADDRPART_LOCALPART, ADDRPART_DOMAIN, ADDRPART_ALL }; | |
75 | #endif | |
76 | enum RelOp { LT, LE, EQ, GE, GT, NE }; | |
77 | ||
78 | struct String | |
79 | { | |
80 | uschar *character; | |
81 | int length; | |
82 | }; | |
83 | ||
84 | static int parse_test(struct Sieve *filter, int *cond, int exec); | |
85 | static int parse_commands(struct Sieve *filter, int exec, address_item **generated); | |
86 | ||
87 | static uschar str_from_c[]="From"; | |
88 | static const struct String str_from={ str_from_c, 4 }; | |
89 | static uschar str_to_c[]="To"; | |
90 | static const struct String str_to={ str_to_c, 2 }; | |
91 | static uschar str_cc_c[]="Cc"; | |
92 | static const struct String str_cc={ str_cc_c, 2 }; | |
93 | static uschar str_bcc_c[]="Bcc"; | |
94 | static const struct String str_bcc={ str_bcc_c, 3 }; | |
95 | static uschar str_sender_c[]="Sender"; | |
96 | static const struct String str_sender={ str_sender_c, 6 }; | |
97 | static uschar str_resent_from_c[]="Resent-From"; | |
98 | static const struct String str_resent_from={ str_resent_from_c, 11 }; | |
99 | static uschar str_resent_to_c[]="Resent-To"; | |
100 | static const struct String str_resent_to={ str_resent_to_c, 9 }; | |
101 | static uschar str_fileinto_c[]="fileinto"; | |
102 | static const struct String str_fileinto={ str_fileinto_c, 8 }; | |
103 | static uschar str_envelope_c[]="envelope"; | |
104 | static const struct String str_envelope={ str_envelope_c, 8 }; | |
105 | #ifdef SUBADDRESS | |
106 | static uschar str_subaddress_c[]="subaddress"; | |
107 | static const struct String str_subaddress={ str_subaddress_c, 10 }; | |
108 | #endif | |
109 | #ifdef VACATION | |
110 | static uschar str_vacation_c[]="vacation"; | |
111 | static const struct String str_vacation={ str_vacation_c, 8 }; | |
112 | static uschar str_subject_c[]="Subject"; | |
113 | static const struct String str_subject={ str_subject_c, 7 }; | |
114 | #endif | |
115 | static uschar str_copy_c[]="copy"; | |
116 | static const struct String str_copy={ str_copy_c, 4 }; | |
117 | static uschar str_iascii_casemap_c[]="i;ascii-casemap"; | |
118 | static const struct String str_iascii_casemap={ str_iascii_casemap_c, 15 }; | |
5ea81592 PH |
119 | static uschar str_enascii_casemap_c[]="en;ascii-casemap"; |
120 | static const struct String str_enascii_casemap={ str_enascii_casemap_c, 16 }; | |
059ec3d9 PH |
121 | static uschar str_ioctet_c[]="i;octet"; |
122 | static const struct String str_ioctet={ str_ioctet_c, 7 }; | |
123 | static uschar str_iascii_numeric_c[]="i;ascii-numeric"; | |
124 | static const struct String str_iascii_numeric={ str_iascii_numeric_c, 15 }; | |
125 | static uschar str_comparator_iascii_casemap_c[]="comparator-i;ascii-casemap"; | |
126 | static const struct String str_comparator_iascii_casemap={ str_comparator_iascii_casemap_c, 26 }; | |
5ea81592 PH |
127 | static uschar str_comparator_enascii_casemap_c[]="comparator-en;ascii-casemap"; |
128 | static const struct String str_comparator_enascii_casemap={ str_comparator_enascii_casemap_c, 27 }; | |
059ec3d9 PH |
129 | static uschar str_comparator_ioctet_c[]="comparator-i;octet"; |
130 | static const struct String str_comparator_ioctet={ str_comparator_ioctet_c, 18 }; | |
131 | static uschar str_comparator_iascii_numeric_c[]="comparator-i;ascii-numeric"; | |
132 | static const struct String str_comparator_iascii_numeric={ str_comparator_iascii_numeric_c, 26 }; | |
133 | ||
134 | ||
135 | /************************************************* | |
136 | * Encode to quoted-printable * | |
137 | *************************************************/ | |
138 | ||
139 | /* | |
140 | Arguments: | |
141 | src UTF-8 string | |
142 | */ | |
143 | ||
144 | static struct String *quoted_printable_encode(const struct String *src, struct String *dst) | |
145 | { | |
146 | int pass; | |
147 | const uschar *start,*end; | |
148 | uschar *new = NULL; | |
149 | uschar ch; | |
150 | size_t line; | |
151 | ||
152 | for (pass=0; pass<=1; ++pass) | |
153 | { | |
154 | line=0; | |
155 | if (pass==0) | |
156 | dst->length=0; | |
157 | else | |
158 | { | |
159 | dst->character=store_get(dst->length+1); /* plus one for \0 */ | |
160 | new=dst->character; | |
161 | } | |
162 | for (start=src->character,end=start+src->length; start<end; ++start) | |
163 | { | |
164 | ch=*start; | |
165 | if (line>=73) | |
166 | { | |
167 | if (pass==0) | |
168 | dst->length+=2; | |
169 | else | |
170 | { | |
171 | *new++='='; | |
172 | *new++='\n'; | |
173 | } | |
174 | line=0; | |
175 | } | |
176 | if | |
177 | ( | |
178 | (ch>=33 && ch<=60) | |
179 | || (ch>=62 && ch<=126) | |
180 | || | |
181 | ( | |
182 | (ch==9 || ch==32) | |
183 | #ifdef RFC_EOL | |
184 | && start+2<end | |
185 | && (*(start+1)!='\r' || *(start+2)!='\n') | |
186 | #else | |
187 | && start+1<end | |
188 | && *(start+1)!='\n' | |
189 | #endif | |
190 | ) | |
191 | ) | |
192 | { | |
193 | if (pass==0) | |
194 | ++dst->length; | |
195 | else | |
196 | *new++=*start; | |
197 | ++line; | |
198 | } | |
199 | #ifdef RFC_EOL | |
200 | else if (ch=='\r' && start+1<end && *(start+1)=='\n') | |
201 | { | |
202 | if (pass==0) | |
203 | { | |
204 | ++dst->length; | |
205 | line=0; | |
206 | ++start; | |
207 | } | |
208 | else | |
209 | *new++='\n'; | |
210 | line=0; | |
211 | } | |
212 | #else | |
213 | else if (ch=='\n') | |
214 | { | |
215 | if (pass==0) | |
216 | ++dst->length; | |
217 | else | |
218 | *new++=*start; | |
219 | ++line; | |
220 | } | |
221 | #endif | |
222 | else | |
223 | { | |
224 | if (pass==0) | |
225 | dst->length+=3; | |
226 | else | |
227 | { | |
228 | sprintf(CS new,"=%02X",ch); | |
229 | new+=3; | |
230 | } | |
231 | line+=3; | |
232 | } | |
233 | } | |
234 | } | |
235 | *new='\0'; /* not included in length, but nice */ | |
236 | return dst; | |
237 | } | |
238 | ||
239 | ||
240 | /************************************************* | |
241 | * Octet-wise string comparison * | |
242 | *************************************************/ | |
243 | ||
244 | /* | |
245 | Arguments: | |
246 | needle UTF-8 string to search ... | |
247 | haystack ... inside the haystack | |
248 | match_prefix 1 to compare if needle is a prefix of haystack | |
249 | ||
250 | Returns: 0 needle not found in haystack | |
251 | 1 needle found | |
252 | */ | |
253 | ||
254 | static int eq_octet(const struct String *needle, | |
255 | const struct String *haystack, int match_prefix) | |
256 | { | |
257 | size_t nl,hl; | |
258 | const uschar *n,*h; | |
259 | ||
260 | nl=needle->length; | |
261 | n=needle->character; | |
262 | hl=haystack->length; | |
263 | h=haystack->character; | |
264 | while (nl>0 && hl>0) | |
265 | { | |
266 | #if !HAVE_ICONV | |
267 | if (*n&0x80) return 0; | |
268 | if (*h&0x80) return 0; | |
269 | #endif | |
270 | if (*n!=*h) return 0; | |
271 | ++n; | |
272 | ++h; | |
273 | --nl; | |
274 | --hl; | |
275 | } | |
276 | return (match_prefix ? nl==0 : nl==0 && hl==0); | |
277 | } | |
278 | ||
279 | ||
280 | /************************************************* | |
281 | * ASCII case-insensitive string comparison * | |
282 | *************************************************/ | |
283 | ||
284 | /* | |
285 | Arguments: | |
286 | needle UTF-8 string to search ... | |
287 | haystack ... inside the haystack | |
288 | match_prefix 1 to compare if needle is a prefix of haystack | |
289 | ||
290 | Returns: 0 needle not found in haystack | |
291 | 1 needle found | |
292 | */ | |
293 | ||
294 | static int eq_asciicase(const struct String *needle, | |
295 | const struct String *haystack, int match_prefix) | |
296 | { | |
297 | size_t nl,hl; | |
298 | const uschar *n,*h; | |
299 | uschar nc,hc; | |
300 | ||
301 | nl=needle->length; | |
302 | n=needle->character; | |
303 | hl=haystack->length; | |
304 | h=haystack->character; | |
305 | while (nl>0 && hl>0) | |
306 | { | |
307 | nc=*n; | |
308 | hc=*h; | |
309 | #if !HAVE_ICONV | |
310 | if (nc&0x80) return 0; | |
311 | if (hc&0x80) return 0; | |
312 | #endif | |
313 | /* tolower depends on the locale and only ASCII case must be insensitive */ | |
314 | if ((nc&0x80) || (hc&0x80)) { if (nc!=hc) return 0; } | |
315 | else if ((nc>='A' && nc<='Z' ? nc|0x20 : nc) != (hc>='A' && hc<='Z' ? hc|0x20 : hc)) return 0; | |
316 | ++n; | |
317 | ++h; | |
318 | --nl; | |
319 | --hl; | |
320 | } | |
321 | return (match_prefix ? nl==0 : nl==0 && hl==0); | |
322 | } | |
323 | ||
324 | ||
325 | /************************************************* | |
326 | * Octet-wise glob pattern search * | |
327 | *************************************************/ | |
328 | ||
329 | /* | |
330 | Arguments: | |
331 | needle pattern to search ... | |
332 | haystack ... inside the haystack | |
333 | ||
334 | Returns: 0 needle not found in haystack | |
335 | 1 needle found | |
336 | */ | |
337 | ||
338 | static int eq_octetglob(const struct String *needle, | |
339 | const struct String *haystack) | |
340 | { | |
341 | struct String n,h; | |
342 | ||
343 | n=*needle; | |
344 | h=*haystack; | |
345 | while (n.length) | |
346 | { | |
347 | switch (n.character[0]) | |
348 | { | |
349 | case '*': | |
350 | { | |
351 | int currentLength; | |
352 | ||
353 | ++n.character; | |
354 | --n.length; | |
355 | /* The greedy match is not yet well tested. Some day we may */ | |
356 | /* need to refer to the matched parts, so the code is already */ | |
357 | /* prepared for that. */ | |
358 | #if 1 | |
359 | /* greedy match */ | |
360 | currentLength=h.length; | |
361 | h.character+=h.length; | |
362 | h.length=0; | |
363 | while (h.length<=currentLength) | |
364 | { | |
365 | if (eq_octetglob(&n,&h)) return 1; | |
366 | else /* go back one octet */ | |
367 | { | |
368 | --h.character; | |
369 | ++h.length; | |
370 | } | |
371 | } | |
372 | return 0; | |
373 | #else | |
374 | /* minimal match */ | |
375 | while (h.length) | |
376 | { | |
377 | if (eq_octetglob(&n,&h)) return 1; | |
378 | else /* advance one octet */ | |
379 | { | |
380 | ++h.character; | |
381 | --h.length; | |
382 | } | |
383 | } | |
384 | break; | |
385 | #endif | |
386 | } | |
387 | case '?': | |
388 | { | |
389 | if (h.length) | |
390 | { | |
391 | ++h.character; | |
392 | --h.length; | |
393 | ++n.character; | |
394 | --n.length; | |
395 | } | |
396 | else return 0; | |
397 | break; | |
398 | } | |
399 | case '\\': | |
400 | { | |
401 | ++n.character; | |
402 | --n.length; | |
403 | /* FALLTHROUGH */ | |
404 | } | |
405 | default: | |
406 | { | |
407 | if | |
408 | ( | |
409 | h.length==0 || | |
410 | #if !HAVE_ICONV | |
411 | (h.character[0]&0x80) || (n.character[0]&0x80) || | |
412 | #endif | |
413 | h.character[0]!=n.character[0] | |
414 | ) return 0; | |
415 | else | |
416 | { | |
417 | ++h.character; | |
418 | --h.length; | |
419 | ++n.character; | |
420 | --n.length; | |
421 | }; | |
422 | } | |
423 | } | |
424 | } | |
425 | return (h.length==0); | |
426 | } | |
427 | ||
428 | ||
429 | /************************************************* | |
430 | * ASCII case-insensitive glob pattern search * | |
431 | *************************************************/ | |
432 | ||
433 | /* | |
434 | Arguments: | |
435 | needle UTF-8 pattern to search ... | |
436 | haystack ... inside the haystack | |
437 | ||
438 | Returns: 0 needle not found in haystack | |
439 | 1 needle found | |
440 | */ | |
441 | ||
442 | static int eq_asciicaseglob(const struct String *needle, | |
443 | const struct String *haystack) | |
444 | { | |
445 | struct String n,h; | |
446 | ||
447 | n=*needle; | |
448 | h=*haystack; | |
449 | while (n.length) | |
450 | { | |
451 | switch (n.character[0]) | |
452 | { | |
453 | case '*': | |
454 | { | |
455 | int currentLength; | |
456 | ||
457 | ++n.character; | |
458 | --n.length; | |
459 | /* The greedy match is not yet well tested. Some day we may */ | |
460 | /* need to refer to the matched parts, so the code is already */ | |
461 | /* prepared for that. */ | |
462 | #if 1 | |
463 | /* greedy match */ | |
464 | currentLength=h.length; | |
465 | h.character+=h.length; | |
466 | h.length=0; | |
467 | while (h.length<=currentLength) | |
468 | { | |
469 | if (eq_asciicaseglob(&n,&h)) return 1; | |
470 | else /* go back one UTF-8 character */ | |
471 | { | |
472 | if (h.length==currentLength) return 0; | |
473 | --h.character; | |
474 | ++h.length; | |
475 | if (h.character[0]&0x80) | |
476 | { | |
477 | while (h.length<currentLength && (*(h.character-1)&0x80)) | |
478 | { | |
479 | --h.character; | |
480 | ++h.length; | |
481 | } | |
482 | } | |
483 | } | |
484 | } | |
485 | /* NOTREACHED */ | |
486 | #else | |
487 | while (h.length) | |
488 | { | |
489 | if (eq_asciicaseglob(&n,&h)) return 1; | |
490 | else /* advance one UTF-8 character */ | |
491 | { | |
492 | if (h.character[0]&0x80) | |
493 | { | |
494 | while (h.length && (h.character[0]&0x80)) | |
495 | { | |
496 | ++h.character; | |
497 | --h.length; | |
498 | } | |
499 | } | |
500 | else | |
501 | { | |
502 | ++h.character; | |
503 | --h.length; | |
504 | } | |
505 | } | |
506 | } | |
507 | break; | |
508 | #endif | |
509 | } | |
510 | case '?': | |
511 | { | |
512 | if (h.length) | |
513 | { | |
514 | ++n.character; | |
515 | --n.length; | |
516 | /* advance one UTF-8 character */ | |
517 | if (h.character[0]&0x80) | |
518 | { | |
519 | while (h.length && (h.character[0]&0x80)) | |
520 | { | |
521 | ++h.character; | |
522 | --h.length; | |
523 | } | |
524 | } | |
525 | else | |
526 | { | |
527 | ++h.character; | |
528 | --h.length; | |
529 | } | |
530 | } | |
531 | else return 0; | |
532 | break; | |
533 | } | |
534 | case '\\': | |
535 | { | |
536 | ++n.character; | |
537 | --n.length; | |
538 | /* FALLTHROUGH */ | |
539 | } | |
540 | default: | |
541 | { | |
542 | char nc,hc; | |
543 | ||
544 | if (h.length==0) return 0; | |
545 | nc=n.character[0]; | |
546 | hc=h.character[0]; | |
547 | #if !HAVE_ICONV | |
548 | if ((hc&0x80) || (nc&0x80)) return 0; | |
549 | #endif | |
550 | /* tolower depends on the locale and only ASCII case must be insensitive */ | |
551 | if ((nc&0x80) || (hc&0x80)) { if (nc!=hc) return 0; } | |
552 | else if ((nc>='A' && nc<='Z' ? nc|0x20 : nc) != (hc>='A' && hc<='Z' ? hc|0x20 : hc)) return 0; | |
553 | ++h.character; | |
554 | --h.length; | |
555 | ++n.character; | |
556 | --n.length; | |
557 | } | |
558 | } | |
559 | } | |
560 | return (h.length==0); | |
561 | } | |
562 | ||
563 | ||
564 | /************************************************* | |
565 | * ASCII numeric comparison * | |
566 | *************************************************/ | |
567 | ||
568 | /* | |
569 | Arguments: | |
570 | a first numeric string | |
571 | b second numeric string | |
572 | relop relational operator | |
573 | ||
574 | Returns: 0 not (a relop b) | |
575 | 1 a relop b | |
576 | */ | |
577 | ||
578 | static int eq_asciinumeric(const struct String *a, | |
579 | const struct String *b, enum RelOp relop) | |
580 | { | |
581 | size_t al,bl; | |
582 | const uschar *as,*aend,*bs,*bend; | |
583 | int cmp; | |
584 | ||
585 | as=a->character; | |
586 | aend=a->character+a->length; | |
587 | bs=b->character; | |
588 | bend=b->character+b->length; | |
589 | ||
590 | while (*as>='0' && *as<='9' && as<aend) ++as; | |
591 | al=as-a->character; | |
592 | while (*bs>='0' && *bs<='9' && bs<bend) ++bs; | |
593 | bl=bs-b->character; | |
594 | ||
595 | if (al && bl==0) cmp=-1; | |
596 | else if (al==0 && bl==0) cmp=0; | |
597 | else if (al==0 && bl) cmp=1; | |
598 | else | |
599 | { | |
600 | cmp=al-bl; | |
601 | if (cmp==0) cmp=memcmp(a->character,b->character,al); | |
602 | } | |
603 | switch (relop) | |
604 | { | |
605 | case LT: return cmp<0; | |
606 | case LE: return cmp<=0; | |
607 | case EQ: return cmp==0; | |
608 | case GE: return cmp>=0; | |
609 | case GT: return cmp>0; | |
610 | case NE: return cmp!=0; | |
611 | } | |
612 | /*NOTREACHED*/ | |
613 | return -1; | |
614 | } | |
615 | ||
616 | ||
617 | /************************************************* | |
618 | * Compare strings * | |
619 | *************************************************/ | |
620 | ||
621 | /* | |
622 | Arguments: | |
623 | needle UTF-8 pattern or string to search ... | |
624 | haystack ... inside the haystack | |
625 | co comparator to use | |
626 | mt match type to use | |
627 | ||
628 | Returns: 0 needle not found in haystack | |
629 | 1 needle found | |
630 | -1 comparator does not offer matchtype | |
631 | */ | |
632 | ||
633 | static int compare(struct Sieve *filter, const struct String *needle, const struct String *haystack, | |
634 | enum Comparator co, enum MatchType mt) | |
635 | { | |
636 | int r=0; | |
637 | ||
f05da2e8 | 638 | if ((filter_test != FTEST_NONE && debug_selector != 0) || |
059ec3d9 PH |
639 | (debug_selector & D_filter) != 0) |
640 | { | |
641 | debug_printf("String comparison (match "); | |
642 | switch (mt) | |
643 | { | |
644 | case MATCH_IS: debug_printf(":is"); break; | |
645 | case MATCH_CONTAINS: debug_printf(":contains"); break; | |
646 | case MATCH_MATCHES: debug_printf(":matches"); break; | |
647 | } | |
648 | debug_printf(", comparison \""); | |
649 | switch (co) | |
650 | { | |
651 | case COMP_OCTET: debug_printf("i;octet"); break; | |
5ea81592 | 652 | case COMP_EN_ASCII_CASEMAP: debug_printf("en;ascii-casemap"); break; |
059ec3d9 PH |
653 | case COMP_ASCII_NUMERIC: debug_printf("i;ascii-numeric"); break; |
654 | } | |
655 | debug_printf("\"):\n"); | |
656 | debug_printf(" Search = %s (%d chars)\n", needle->character,needle->length); | |
657 | debug_printf(" Inside = %s (%d chars)\n", haystack->character,haystack->length); | |
658 | } | |
659 | switch (mt) | |
660 | { | |
661 | case MATCH_IS: | |
662 | { | |
663 | switch (co) | |
664 | { | |
665 | case COMP_OCTET: | |
666 | { | |
667 | if (eq_octet(needle,haystack,0)) r=1; | |
668 | break; | |
669 | } | |
5ea81592 | 670 | case COMP_EN_ASCII_CASEMAP: |
059ec3d9 PH |
671 | { |
672 | if (eq_asciicase(needle,haystack,0)) r=1; | |
673 | break; | |
674 | } | |
675 | case COMP_ASCII_NUMERIC: | |
676 | { | |
677 | if (!filter->require_iascii_numeric) | |
678 | { | |
679 | filter->errmsg=CUS "missing previous require \"comparator-i;ascii-numeric\";"; | |
680 | return -1; | |
681 | } | |
682 | if (eq_asciinumeric(needle,haystack,EQ)) r=1; | |
683 | break; | |
684 | } | |
685 | } | |
686 | break; | |
687 | } | |
688 | case MATCH_CONTAINS: | |
689 | { | |
690 | struct String h; | |
691 | ||
692 | switch (co) | |
693 | { | |
694 | case COMP_OCTET: | |
695 | { | |
696 | for (h=*haystack; h.length; ++h.character,--h.length) if (eq_octet(needle,&h,1)) { r=1; break; } | |
697 | break; | |
698 | } | |
5ea81592 | 699 | case COMP_EN_ASCII_CASEMAP: |
059ec3d9 PH |
700 | { |
701 | for (h=*haystack; h.length; ++h.character,--h.length) if (eq_asciicase(needle,&h,1)) { r=1; break; } | |
702 | break; | |
703 | } | |
704 | default: | |
705 | { | |
706 | filter->errmsg=CUS "comparator does not offer specified matchtype"; | |
707 | return -1; | |
708 | } | |
709 | } | |
710 | break; | |
711 | } | |
712 | case MATCH_MATCHES: | |
713 | { | |
714 | switch (co) | |
715 | { | |
716 | case COMP_OCTET: | |
717 | { | |
718 | if (eq_octetglob(needle,haystack)) r=1; | |
719 | break; | |
720 | } | |
5ea81592 | 721 | case COMP_EN_ASCII_CASEMAP: |
059ec3d9 PH |
722 | { |
723 | if (eq_asciicaseglob(needle,haystack)) r=1; | |
724 | break; | |
725 | } | |
726 | default: | |
727 | { | |
728 | filter->errmsg=CUS "comparator does not offer specified matchtype"; | |
729 | return -1; | |
730 | } | |
731 | } | |
732 | break; | |
733 | } | |
734 | } | |
f05da2e8 | 735 | if ((filter_test != FTEST_NONE && debug_selector != 0) || |
059ec3d9 PH |
736 | (debug_selector & D_filter) != 0) |
737 | debug_printf(" Result %s\n",r?"true":"false"); | |
738 | return r; | |
739 | } | |
740 | ||
741 | ||
742 | /************************************************* | |
743 | * Check header field syntax * | |
744 | *************************************************/ | |
745 | ||
746 | /* | |
747 | RFC 2822, section 3.6.8 says: | |
748 | ||
749 | field-name = 1*ftext | |
750 | ||
751 | ftext = %d33-57 / ; Any character except | |
752 | %d59-126 ; controls, SP, and | |
753 | ; ":". | |
754 | ||
755 | That forbids 8-bit header fields. This implementation accepts them, since | |
756 | all of Exim is 8-bit clean, so it adds %d128-%d255. | |
757 | ||
758 | Arguments: | |
759 | header header field to quote for suitable use in Exim expansions | |
760 | ||
761 | Returns: 0 string is not a valid header field | |
762 | 1 string is a value header field | |
763 | */ | |
764 | ||
765 | static int is_header(const struct String *header) | |
766 | { | |
767 | size_t l; | |
768 | const uschar *h; | |
769 | ||
770 | l=header->length; | |
771 | h=header->character; | |
772 | if (l==0) return 0; | |
773 | while (l) | |
774 | { | |
775 | if (((unsigned char)*h)<33 || ((unsigned char)*h)==':' || ((unsigned char)*h)==127) return 0; | |
776 | else | |
777 | { | |
778 | ++h; | |
779 | --l; | |
780 | } | |
781 | } | |
782 | return 1; | |
783 | } | |
784 | ||
785 | ||
786 | /************************************************* | |
787 | * Quote special characters string * | |
788 | *************************************************/ | |
789 | ||
790 | /* | |
791 | Arguments: | |
792 | header header field to quote for suitable use in Exim expansions | |
793 | or as debug output | |
794 | ||
795 | Returns: quoted string | |
796 | */ | |
797 | ||
798 | static const uschar *quote(const struct String *header) | |
799 | { | |
800 | uschar *quoted=NULL; | |
801 | int size=0,ptr=0; | |
802 | size_t l; | |
803 | const uschar *h; | |
804 | ||
805 | l=header->length; | |
806 | h=header->character; | |
807 | while (l) | |
808 | { | |
809 | switch (*h) | |
810 | { | |
811 | case '\0': | |
812 | { | |
813 | quoted=string_cat(quoted,&size,&ptr,CUS "\\0",2); | |
814 | break; | |
815 | } | |
816 | case '$': | |
817 | case '{': | |
818 | case '}': | |
819 | { | |
820 | quoted=string_cat(quoted,&size,&ptr,CUS "\\",1); | |
821 | } | |
822 | default: | |
823 | { | |
824 | quoted=string_cat(quoted,&size,&ptr,h,1); | |
825 | } | |
826 | } | |
827 | ++h; | |
828 | --l; | |
829 | } | |
830 | quoted=string_cat(quoted,&size,&ptr,CUS "",1); | |
831 | return quoted; | |
832 | } | |
833 | ||
834 | ||
835 | /************************************************* | |
836 | * Add address to list of generated addresses * | |
837 | *************************************************/ | |
838 | ||
839 | /* | |
840 | According to RFC 3028, duplicate delivery to the same address must | |
841 | not happen, so the list is first searched for the address. | |
842 | ||
843 | Arguments: | |
844 | generated list of generated addresses | |
845 | addr new address to add | |
846 | file address denotes a file | |
847 | ||
848 | Returns: nothing | |
849 | */ | |
850 | ||
851 | static void add_addr(address_item **generated, uschar *addr, int file, int maxage, int maxmessages, int maxstorage) | |
852 | { | |
853 | address_item *new_addr; | |
854 | ||
855 | for (new_addr=*generated; new_addr; new_addr=new_addr->next) | |
856 | { | |
857 | if (Ustrcmp(new_addr->address,addr)==0 && (file ? testflag(new_addr, af_pfr|af_file) : 1)) | |
858 | { | |
f05da2e8 | 859 | if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0) |
059ec3d9 PH |
860 | { |
861 | debug_printf("Repeated %s `%s' ignored.\n",file ? "fileinto" : "redirect", addr); | |
862 | } | |
863 | return; | |
864 | } | |
865 | } | |
866 | ||
f05da2e8 | 867 | if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0) |
059ec3d9 PH |
868 | { |
869 | debug_printf("%s `%s'\n",file ? "fileinto" : "redirect", addr); | |
870 | } | |
871 | new_addr=deliver_make_addr(addr,TRUE); | |
872 | if (file) | |
873 | { | |
874 | setflag(new_addr, af_pfr|af_file); | |
875 | new_addr->mode = 0; | |
876 | } | |
877 | new_addr->p.errors_address = NULL; | |
878 | new_addr->next = *generated; | |
879 | *generated = new_addr; | |
880 | } | |
881 | ||
882 | ||
883 | /************************************************* | |
884 | * Return decoded header field * | |
885 | *************************************************/ | |
886 | ||
887 | /* | |
888 | Arguments: | |
889 | value returned value of the field | |
890 | header name of the header field | |
891 | ||
892 | Returns: nothing The expanded string is empty | |
893 | in case there is no such header | |
894 | */ | |
895 | ||
896 | static void expand_header(struct String *value, const struct String *header) | |
897 | { | |
898 | uschar *s,*r,*t; | |
899 | uschar *errmsg; | |
900 | ||
901 | value->length=0; | |
902 | value->character=(uschar*)0; | |
903 | ||
904 | t=r=s=expand_string(string_sprintf("$rheader_%s",quote(header))); | |
905 | while (*r==' ') ++r; | |
906 | while (*r) | |
907 | { | |
908 | if (*r=='\n') | |
909 | { | |
910 | ++r; | |
911 | while (*r==' ' || *r=='\t') ++r; | |
912 | if (*r) *t++=' '; | |
913 | } | |
914 | else | |
915 | *t++=*r++; | |
916 | } | |
917 | *t++='\0'; | |
918 | value->character=rfc2047_decode(s,TRUE,US"utf-8",'\0',&value->length,&errmsg); | |
919 | } | |
920 | ||
921 | ||
922 | /************************************************* | |
923 | * Parse remaining hash comment * | |
924 | *************************************************/ | |
925 | ||
926 | /* | |
927 | Token definition: | |
928 | Comment up to terminating CRLF | |
929 | ||
930 | Arguments: | |
931 | filter points to the Sieve filter including its state | |
932 | ||
933 | Returns: 1 success | |
934 | -1 syntax error | |
935 | */ | |
936 | ||
937 | static int parse_hashcomment(struct Sieve *filter) | |
938 | { | |
939 | ++filter->pc; | |
940 | while (*filter->pc) | |
941 | { | |
942 | #ifdef RFC_EOL | |
943 | if (*filter->pc=='\r' && *(filter->pc+1)=='\n') | |
944 | #else | |
945 | if (*filter->pc=='\n') | |
946 | #endif | |
947 | { | |
948 | #ifdef RFC_EOL | |
949 | filter->pc+=2; | |
950 | #else | |
951 | ++filter->pc; | |
952 | #endif | |
953 | ++filter->line; | |
954 | return 1; | |
955 | } | |
956 | else ++filter->pc; | |
957 | } | |
958 | filter->errmsg=CUS "missing end of comment"; | |
959 | return -1; | |
960 | } | |
961 | ||
962 | ||
963 | /************************************************* | |
964 | * Parse remaining C-style comment * | |
965 | *************************************************/ | |
966 | ||
967 | /* | |
968 | Token definition: | |
969 | Everything up to star slash | |
970 | ||
971 | Arguments: | |
972 | filter points to the Sieve filter including its state | |
973 | ||
974 | Returns: 1 success | |
975 | -1 syntax error | |
976 | */ | |
977 | ||
978 | static int parse_comment(struct Sieve *filter) | |
979 | { | |
980 | filter->pc+=2; | |
981 | while (*filter->pc) | |
982 | { | |
983 | if (*filter->pc=='*' && *(filter->pc+1)=='/') | |
984 | { | |
985 | filter->pc+=2; | |
986 | return 1; | |
987 | } | |
988 | else ++filter->pc; | |
989 | } | |
990 | filter->errmsg=CUS "missing end of comment"; | |
991 | return -1; | |
992 | } | |
993 | ||
994 | ||
995 | /************************************************* | |
996 | * Parse optional white space * | |
997 | *************************************************/ | |
998 | ||
999 | /* | |
1000 | Token definition: | |
1001 | Spaces, tabs, CRLFs, hash comments or C-style comments | |
1002 | ||
1003 | Arguments: | |
1004 | filter points to the Sieve filter including its state | |
1005 | ||
1006 | Returns: 1 success | |
1007 | -1 syntax error | |
1008 | */ | |
1009 | ||
1010 | static int parse_white(struct Sieve *filter) | |
1011 | { | |
1012 | while (*filter->pc) | |
1013 | { | |
1014 | if (*filter->pc==' ' || *filter->pc=='\t') ++filter->pc; | |
1015 | #ifdef RFC_EOL | |
1016 | else if (*filter->pc=='\r' && *(filter->pc+1)=='\n') | |
1017 | #else | |
1018 | else if (*filter->pc=='\n') | |
1019 | #endif | |
1020 | { | |
1021 | #ifdef RFC_EOL | |
1022 | filter->pc+=2; | |
1023 | #else | |
1024 | ++filter->pc; | |
1025 | #endif | |
1026 | ++filter->line; | |
1027 | } | |
1028 | else if (*filter->pc=='#') | |
1029 | { | |
1030 | if (parse_hashcomment(filter)==-1) return -1; | |
1031 | } | |
1032 | else if (*filter->pc=='/' && *(filter->pc+1)=='*') | |
1033 | { | |
1034 | if (parse_comment(filter)==-1) return -1; | |
1035 | } | |
1036 | else break; | |
1037 | } | |
1038 | return 1; | |
1039 | } | |
1040 | ||
1041 | ||
1042 | /************************************************* | |
1043 | * Parse a optional string * | |
1044 | *************************************************/ | |
1045 | ||
1046 | /* | |
1047 | Token definition: | |
1048 | quoted-string = DQUOTE *CHAR DQUOTE | |
1049 | ;; in general, \ CHAR inside a string maps to CHAR | |
1050 | ;; so \" maps to " and \\ maps to \ | |
1051 | ;; note that newlines and other characters are all allowed | |
1052 | ;; in strings | |
1053 | ||
1054 | multi-line = "text:" *(SP / HTAB) (hash-comment / CRLF) | |
1055 | *(multi-line-literal / multi-line-dotstuff) | |
1056 | "." CRLF | |
1057 | multi-line-literal = [CHAR-NOT-DOT *CHAR-NOT-CRLF] CRLF | |
1058 | multi-line-dotstuff = "." 1*CHAR-NOT-CRLF CRLF | |
1059 | ;; A line containing only "." ends the multi-line. | |
1060 | ;; Remove a leading '.' if followed by another '.'. | |
1061 | string = quoted-string / multi-line | |
1062 | ||
1063 | Arguments: | |
1064 | filter points to the Sieve filter including its state | |
1065 | id specifies identifier to match | |
1066 | ||
1067 | Returns: 1 success | |
1068 | -1 syntax error | |
1069 | 0 identifier not matched | |
1070 | */ | |
1071 | ||
1072 | static int parse_string(struct Sieve *filter, struct String *data) | |
1073 | { | |
1074 | int dataCapacity=0; | |
1075 | ||
1076 | data->length=0; | |
1077 | data->character=(uschar*)0; | |
1078 | if (*filter->pc=='"') /* quoted string */ | |
1079 | { | |
1080 | ++filter->pc; | |
1081 | while (*filter->pc) | |
1082 | { | |
1083 | if (*filter->pc=='"') /* end of string */ | |
1084 | { | |
1085 | int foo=data->length; | |
1086 | ||
1087 | ++filter->pc; | |
1088 | data->character=string_cat(data->character,&dataCapacity,&foo,CUS "",1); | |
1089 | return 1; | |
1090 | } | |
1091 | else if (*filter->pc=='\\' && *(filter->pc+1)) /* quoted character */ | |
1092 | { | |
1093 | if (*(filter->pc+1)=='0') data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "",1); | |
1094 | else data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc+1,1); | |
1095 | filter->pc+=2; | |
1096 | } | |
1097 | else /* regular character */ | |
1098 | { | |
1099 | data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc,1); | |
1100 | filter->pc++; | |
1101 | } | |
1102 | } | |
1103 | filter->errmsg=CUS "missing end of string"; | |
1104 | return -1; | |
1105 | } | |
1106 | else if (Ustrncmp(filter->pc,CUS "text:",5)==0) /* multiline string */ | |
1107 | { | |
1108 | filter->pc+=5; | |
1109 | /* skip optional white space followed by hashed comment or CRLF */ | |
1110 | while (*filter->pc==' ' || *filter->pc=='\t') ++filter->pc; | |
1111 | if (*filter->pc=='#') | |
1112 | { | |
1113 | if (parse_hashcomment(filter)==-1) return -1; | |
1114 | } | |
1115 | #ifdef RFC_EOL | |
1116 | else if (*filter->pc=='\r' && *(filter->pc+1)=='\n') | |
1117 | #else | |
1118 | else if (*filter->pc=='\n') | |
1119 | #endif | |
1120 | { | |
1121 | #ifdef RFC_EOL | |
1122 | filter->pc+=2; | |
1123 | #else | |
1124 | ++filter->pc; | |
1125 | #endif | |
1126 | ++filter->line; | |
1127 | } | |
1128 | else | |
1129 | { | |
1130 | filter->errmsg=CUS "syntax error"; | |
1131 | return -1; | |
1132 | } | |
1133 | while (*filter->pc) | |
1134 | { | |
1135 | #ifdef RFC_EOL | |
1136 | if (*filter->pc=='\r' && *(filter->pc+1)=='\n') /* end of line */ | |
1137 | #else | |
1138 | if (*filter->pc=='\n') /* end of line */ | |
1139 | #endif | |
1140 | { | |
1141 | data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "\r\n",2); | |
1142 | #ifdef RFC_EOL | |
1143 | filter->pc+=2; | |
1144 | #else | |
1145 | ++filter->pc; | |
1146 | #endif | |
1147 | ++filter->line; | |
1148 | #ifdef RFC_EOL | |
1149 | if (*filter->pc=='.' && *(filter->pc+1)=='\r' && *(filter->pc+2)=='\n') /* end of string */ | |
1150 | #else | |
1151 | if (*filter->pc=='.' && *(filter->pc+1)=='\n') /* end of string */ | |
1152 | #endif | |
1153 | { | |
1154 | data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "",1); | |
1155 | #ifdef RFC_EOL | |
1156 | filter->pc+=3; | |
1157 | #else | |
1158 | filter->pc+=2; | |
1159 | #endif | |
1160 | ++filter->line; | |
1161 | return 1; | |
1162 | } | |
1163 | else if (*filter->pc=='.' && *(filter->pc+1)=='.') /* remove dot stuffing */ | |
1164 | { | |
1165 | data->character=string_cat(data->character,&dataCapacity,&data->length,CUS ".",1); | |
1166 | filter->pc+=2; | |
1167 | } | |
1168 | } | |
1169 | else /* regular character */ | |
1170 | { | |
1171 | data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc,1); | |
1172 | filter->pc++; | |
1173 | } | |
1174 | } | |
1175 | filter->errmsg=CUS "missing end of multi line string"; | |
1176 | return -1; | |
1177 | } | |
1178 | else return 0; | |
1179 | } | |
1180 | ||
1181 | ||
1182 | /************************************************* | |
1183 | * Parse a specific identifier * | |
1184 | *************************************************/ | |
1185 | ||
1186 | /* | |
1187 | Token definition: | |
1188 | identifier = (ALPHA / "_") *(ALPHA DIGIT "_") | |
1189 | ||
1190 | Arguments: | |
1191 | filter points to the Sieve filter including its state | |
1192 | id specifies identifier to match | |
1193 | ||
1194 | Returns: 1 success | |
1195 | 0 identifier not matched | |
1196 | */ | |
1197 | ||
1198 | static int parse_identifier(struct Sieve *filter, const uschar *id) | |
1199 | { | |
1200 | size_t idlen=Ustrlen(id); | |
1201 | ||
1202 | if (Ustrncmp(filter->pc,id,idlen)==0) | |
1203 | { | |
1204 | uschar next=filter->pc[idlen]; | |
1205 | ||
1206 | if ((next>='A' && next<='Z') || (next>='a' && next<='z') || next=='_' || (next>='0' && next<='9')) return 0; | |
1207 | filter->pc+=idlen; | |
1208 | return 1; | |
1209 | } | |
1210 | else return 0; | |
1211 | } | |
1212 | ||
1213 | ||
1214 | /************************************************* | |
1215 | * Parse a number * | |
1216 | *************************************************/ | |
1217 | ||
1218 | /* | |
1219 | Token definition: | |
1220 | number = 1*DIGIT [QUANTIFIER] | |
1221 | QUANTIFIER = "K" / "M" / "G" | |
1222 | ||
1223 | Arguments: | |
1224 | filter points to the Sieve filter including its state | |
1225 | data returns value | |
1226 | ||
1227 | Returns: 1 success | |
1228 | -1 no string list found | |
1229 | */ | |
1230 | ||
1231 | static int parse_number(struct Sieve *filter, unsigned long *data) | |
1232 | { | |
1233 | unsigned long d,u; | |
1234 | ||
1235 | if (*filter->pc>='0' && *filter->pc<='9') | |
1236 | { | |
1237 | uschar *e; | |
1238 | ||
1239 | errno=0; | |
1240 | d=Ustrtoul(filter->pc,&e,10); | |
1241 | if (errno==ERANGE) | |
1242 | { | |
1243 | filter->errmsg=CUstrerror(ERANGE); | |
1244 | return -1; | |
1245 | } | |
1246 | filter->pc=e; | |
1247 | u=1; | |
1248 | if (*filter->pc=='K') { u=1024; ++filter->pc; } | |
1249 | else if (*filter->pc=='M') { u=1024*1024; ++filter->pc; } | |
1250 | else if (*filter->pc=='G') { u=1024*1024*1024; ++filter->pc; } | |
1251 | if (d>(ULONG_MAX/u)) | |
1252 | { | |
1253 | filter->errmsg=CUstrerror(ERANGE); | |
1254 | return -1; | |
1255 | } | |
1256 | d*=u; | |
1257 | *data=d; | |
1258 | return 1; | |
1259 | } | |
1260 | else | |
1261 | { | |
1262 | filter->errmsg=CUS "missing number"; | |
1263 | return -1; | |
1264 | } | |
1265 | } | |
1266 | ||
1267 | ||
1268 | /************************************************* | |
1269 | * Parse a string list * | |
1270 | *************************************************/ | |
1271 | ||
1272 | /* | |
1273 | Grammar: | |
1274 | string-list = "[" string *("," string) "]" / string | |
1275 | ||
1276 | Arguments: | |
1277 | filter points to the Sieve filter including its state | |
1278 | data returns string list | |
1279 | ||
1280 | Returns: 1 success | |
1281 | -1 no string list found | |
1282 | */ | |
1283 | ||
1284 | static int parse_stringlist(struct Sieve *filter, struct String **data) | |
1285 | { | |
1286 | const uschar *orig=filter->pc; | |
1287 | int dataCapacity=0; | |
1288 | int dataLength=0; | |
1289 | struct String *d=(struct String*)0; | |
1290 | int m; | |
1291 | ||
1292 | if (*filter->pc=='[') /* string list */ | |
1293 | { | |
1294 | ++filter->pc; | |
1295 | for (;;) | |
1296 | { | |
1297 | if (parse_white(filter)==-1) goto error; | |
1298 | if ((dataLength+1)>=dataCapacity) /* increase buffer */ | |
1299 | { | |
1300 | struct String *new; | |
1301 | int newCapacity; /* Don't amalgamate with next line; some compilers grumble */ | |
1302 | newCapacity=dataCapacity?(dataCapacity*=2):(dataCapacity=4); | |
1303 | if ((new=(struct String*)store_get(sizeof(struct String)*newCapacity))==(struct String*)0) | |
1304 | { | |
1305 | filter->errmsg=CUstrerror(errno); | |
1306 | goto error; | |
1307 | } | |
1308 | if (d) memcpy(new,d,sizeof(struct String)*dataLength); | |
1309 | d=new; | |
1310 | dataCapacity=newCapacity; | |
1311 | } | |
1312 | m=parse_string(filter,&d[dataLength]); | |
1313 | if (m==0) | |
1314 | { | |
1315 | if (dataLength==0) break; | |
1316 | else | |
1317 | { | |
1318 | filter->errmsg=CUS "missing string"; | |
1319 | goto error; | |
1320 | } | |
1321 | } | |
1322 | else if (m==-1) goto error; | |
1323 | else ++dataLength; | |
1324 | if (parse_white(filter)==-1) goto error; | |
1325 | if (*filter->pc==',') ++filter->pc; | |
1326 | else break; | |
1327 | } | |
1328 | if (*filter->pc==']') | |
1329 | { | |
1330 | d[dataLength].character=(uschar*)0; | |
1331 | d[dataLength].length=-1; | |
1332 | ++filter->pc; | |
1333 | *data=d; | |
1334 | return 1; | |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | filter->errmsg=CUS "missing closing bracket"; | |
1339 | goto error; | |
1340 | } | |
1341 | } | |
1342 | else /* single string */ | |
1343 | { | |
1344 | if ((d=store_get(sizeof(struct String)*2))==(struct String*)0) | |
1345 | { | |
1346 | return -1; | |
1347 | } | |
1348 | m=parse_string(filter,&d[0]); | |
1349 | if (m==-1) | |
1350 | { | |
1351 | return -1; | |
1352 | } | |
1353 | else if (m==0) | |
1354 | { | |
1355 | filter->pc=orig; | |
1356 | return 0; | |
1357 | } | |
1358 | else | |
1359 | { | |
1360 | d[1].character=(uschar*)0; | |
1361 | d[1].length=-1; | |
1362 | *data=d; | |
1363 | return 1; | |
1364 | } | |
1365 | } | |
1366 | error: | |
1367 | filter->errmsg=CUS "missing string list"; | |
1368 | return -1; | |
1369 | } | |
1370 | ||
1371 | ||
1372 | /************************************************* | |
1373 | * Parse an optional address part specifier * | |
1374 | *************************************************/ | |
1375 | ||
1376 | /* | |
1377 | Grammar: | |
1378 | address-part = ":localpart" / ":domain" / ":all" | |
1379 | address-part =/ ":user" / ":detail" | |
1380 | ||
1381 | Arguments: | |
1382 | filter points to the Sieve filter including its state | |
1383 | a returns address part specified | |
1384 | ||
1385 | Returns: 1 success | |
1386 | 0 no comparator found | |
1387 | -1 syntax error | |
1388 | */ | |
1389 | ||
1390 | static int parse_addresspart(struct Sieve *filter, enum AddressPart *a) | |
1391 | { | |
1392 | #ifdef SUBADDRESS | |
1393 | if (parse_identifier(filter,CUS ":user")==1) | |
1394 | { | |
1395 | if (!filter->require_subaddress) | |
1396 | { | |
1397 | filter->errmsg=CUS "missing previous require \"subaddress\";"; | |
1398 | return -1; | |
1399 | } | |
1400 | *a=ADDRPART_USER; | |
1401 | return 1; | |
1402 | } | |
1403 | else if (parse_identifier(filter,CUS ":detail")==1) | |
1404 | { | |
1405 | if (!filter->require_subaddress) | |
1406 | { | |
1407 | filter->errmsg=CUS "missing previous require \"subaddress\";"; | |
1408 | return -1; | |
1409 | } | |
1410 | *a=ADDRPART_DETAIL; | |
1411 | return 1; | |
1412 | } | |
1413 | else | |
1414 | #endif | |
1415 | if (parse_identifier(filter,CUS ":localpart")==1) | |
1416 | { | |
1417 | *a=ADDRPART_LOCALPART; | |
1418 | return 1; | |
1419 | } | |
1420 | else if (parse_identifier(filter,CUS ":domain")==1) | |
1421 | { | |
1422 | *a=ADDRPART_DOMAIN; | |
1423 | return 1; | |
1424 | } | |
1425 | else if (parse_identifier(filter,CUS ":all")==1) | |
1426 | { | |
1427 | *a=ADDRPART_ALL; | |
1428 | return 1; | |
1429 | } | |
1430 | else return 0; | |
1431 | } | |
1432 | ||
1433 | ||
1434 | /************************************************* | |
1435 | * Parse an optional comparator * | |
1436 | *************************************************/ | |
1437 | ||
1438 | /* | |
1439 | Grammar: | |
1440 | comparator = ":comparator" <comparator-name: string> | |
1441 | ||
1442 | Arguments: | |
1443 | filter points to the Sieve filter including its state | |
1444 | c returns comparator | |
1445 | ||
1446 | Returns: 1 success | |
1447 | 0 no comparator found | |
1448 | -1 incomplete comparator found | |
1449 | */ | |
1450 | ||
1451 | static int parse_comparator(struct Sieve *filter, enum Comparator *c) | |
1452 | { | |
1453 | struct String comparator_name; | |
1454 | ||
1455 | if (parse_identifier(filter,CUS ":comparator")==0) return 0; | |
1456 | if (parse_white(filter)==-1) return -1; | |
1457 | switch (parse_string(filter,&comparator_name)) | |
1458 | { | |
1459 | case -1: return -1; | |
1460 | case 0: | |
1461 | { | |
1462 | filter->errmsg=CUS "missing comparator"; | |
1463 | return -1; | |
1464 | } | |
1465 | default: | |
1466 | { | |
1467 | int match; | |
1468 | ||
1469 | if (eq_asciicase(&comparator_name,&str_ioctet,0)) | |
1470 | { | |
1471 | *c=COMP_OCTET; | |
1472 | match=1; | |
1473 | } | |
1474 | else if (eq_asciicase(&comparator_name,&str_iascii_casemap,0)) | |
1475 | { | |
5ea81592 PH |
1476 | *c=COMP_EN_ASCII_CASEMAP; |
1477 | match=1; | |
1478 | } | |
1479 | else if (eq_asciicase(&comparator_name,&str_enascii_casemap,0)) | |
1480 | { | |
1481 | *c=COMP_EN_ASCII_CASEMAP; | |
059ec3d9 PH |
1482 | match=1; |
1483 | } | |
1484 | else if (eq_asciicase(&comparator_name,&str_iascii_numeric,0)) | |
1485 | { | |
1486 | *c=COMP_ASCII_NUMERIC; | |
1487 | match=1; | |
1488 | } | |
1489 | else | |
1490 | { | |
1491 | filter->errmsg=CUS "invalid comparator"; | |
1492 | match=-1; | |
1493 | } | |
1494 | return match; | |
1495 | } | |
1496 | } | |
1497 | } | |
1498 | ||
1499 | ||
1500 | /************************************************* | |
1501 | * Parse an optional match type * | |
1502 | *************************************************/ | |
1503 | ||
1504 | /* | |
1505 | Grammar: | |
1506 | match-type = ":is" / ":contains" / ":matches" | |
1507 | ||
1508 | Arguments: | |
1509 | filter points to the Sieve filter including its state | |
1510 | m returns match type | |
1511 | ||
1512 | Returns: 1 success | |
1513 | 0 no match type found | |
1514 | */ | |
1515 | ||
1516 | static int parse_matchtype(struct Sieve *filter, enum MatchType *m) | |
1517 | { | |
1518 | if (parse_identifier(filter,CUS ":is")==1) | |
1519 | { | |
1520 | *m=MATCH_IS; | |
1521 | return 1; | |
1522 | } | |
1523 | else if (parse_identifier(filter,CUS ":contains")==1) | |
1524 | { | |
1525 | *m=MATCH_CONTAINS; | |
1526 | return 1; | |
1527 | } | |
1528 | else if (parse_identifier(filter,CUS ":matches")==1) | |
1529 | { | |
1530 | *m=MATCH_MATCHES; | |
1531 | return 1; | |
1532 | } | |
1533 | else return 0; | |
1534 | } | |
1535 | ||
1536 | ||
1537 | /************************************************* | |
1538 | * Parse and interpret an optional test list * | |
1539 | *************************************************/ | |
1540 | ||
1541 | /* | |
1542 | Grammar: | |
1543 | test-list = "(" test *("," test) ")" | |
1544 | ||
1545 | Arguments: | |
1546 | filter points to the Sieve filter including its state | |
1547 | n total number of tests | |
1548 | true number of passed tests | |
1549 | exec Execute parsed statements | |
1550 | ||
1551 | Returns: 1 success | |
1552 | 0 no test list found | |
1553 | -1 syntax or execution error | |
1554 | */ | |
1555 | ||
1556 | static int parse_testlist(struct Sieve *filter, int *n, int *true, int exec) | |
1557 | { | |
1558 | if (parse_white(filter)==-1) return -1; | |
1559 | if (*filter->pc=='(') | |
1560 | { | |
1561 | ++filter->pc; | |
1562 | *n=0; | |
1563 | *true=0; | |
1564 | for (;;) | |
1565 | { | |
1566 | int cond; | |
1567 | ||
1568 | switch (parse_test(filter,&cond,exec)) | |
1569 | { | |
1570 | case -1: return -1; | |
1571 | case 0: filter->errmsg=CUS "missing test"; return -1; | |
1572 | default: ++*n; if (cond) ++*true; break; | |
1573 | } | |
1574 | if (parse_white(filter)==-1) return -1; | |
1575 | if (*filter->pc==',') ++filter->pc; | |
1576 | else break; | |
1577 | } | |
1578 | if (*filter->pc==')') | |
1579 | { | |
1580 | ++filter->pc; | |
1581 | return 1; | |
1582 | } | |
1583 | else | |
1584 | { | |
1585 | filter->errmsg=CUS "missing closing paren"; | |
1586 | return -1; | |
1587 | } | |
1588 | } | |
1589 | else return 0; | |
1590 | } | |
1591 | ||
1592 | ||
1593 | /************************************************* | |
1594 | * Parse and interpret an optional test * | |
1595 | *************************************************/ | |
1596 | ||
1597 | /* | |
1598 | Arguments: | |
1599 | filter points to the Sieve filter including its state | |
1600 | cond returned condition status | |
1601 | exec Execute parsed statements | |
1602 | ||
1603 | Returns: 1 success | |
1604 | 0 no test found | |
1605 | -1 syntax or execution error | |
1606 | */ | |
1607 | ||
1608 | static int parse_test(struct Sieve *filter, int *cond, int exec) | |
1609 | { | |
1610 | if (parse_white(filter)==-1) return -1; | |
1611 | if (parse_identifier(filter,CUS "address")) | |
1612 | { | |
1613 | /* | |
1614 | address-test = "address" { [address-part] [comparator] [match-type] } | |
1615 | <header-list: string-list> <key-list: string-list> | |
1616 | ||
1617 | header-list From, To, Cc, Bcc, Sender, Resent-From, Resent-To | |
1618 | */ | |
1619 | ||
1620 | enum AddressPart addressPart=ADDRPART_ALL; | |
5ea81592 | 1621 | enum Comparator comparator=COMP_EN_ASCII_CASEMAP; |
059ec3d9 PH |
1622 | enum MatchType matchType=MATCH_IS; |
1623 | struct String *hdr,*h,*key,*k; | |
1624 | int m; | |
1625 | int ap=0,co=0,mt=0; | |
1626 | ||
1627 | for (;;) | |
1628 | { | |
1629 | if (parse_white(filter)==-1) return -1; | |
1630 | if ((m=parse_addresspart(filter,&addressPart))!=0) | |
1631 | { | |
1632 | if (m==-1) return -1; | |
1633 | if (ap) | |
1634 | { | |
1635 | filter->errmsg=CUS "address part already specified"; | |
1636 | return -1; | |
1637 | } | |
1638 | else ap=1; | |
1639 | } | |
1640 | else if ((m=parse_comparator(filter,&comparator))!=0) | |
1641 | { | |
1642 | if (m==-1) return -1; | |
1643 | if (co) | |
1644 | { | |
1645 | filter->errmsg=CUS "comparator already specified"; | |
1646 | return -1; | |
1647 | } | |
1648 | else co=1; | |
1649 | } | |
1650 | else if ((m=parse_matchtype(filter,&matchType))!=0) | |
1651 | { | |
1652 | if (m==-1) return -1; | |
1653 | if (mt) | |
1654 | { | |
1655 | filter->errmsg=CUS "match type already specified"; | |
1656 | return -1; | |
1657 | } | |
1658 | else mt=1; | |
1659 | } | |
1660 | else break; | |
1661 | } | |
1662 | if (parse_white(filter)==-1) return -1; | |
1663 | if ((m=parse_stringlist(filter,&hdr))!=1) | |
1664 | { | |
1665 | if (m==0) filter->errmsg=CUS "header string list expected"; | |
1666 | return -1; | |
1667 | } | |
1668 | if (parse_white(filter)==-1) return -1; | |
1669 | if ((m=parse_stringlist(filter,&key))!=1) | |
1670 | { | |
1671 | if (m==0) filter->errmsg=CUS "key string list expected"; | |
1672 | return -1; | |
1673 | } | |
1674 | *cond=0; | |
1675 | for (h=hdr; h->length!=-1 && !*cond; ++h) | |
1676 | { | |
1677 | uschar *header_value=(uschar*)0,*extracted_addr,*end_addr; | |
1678 | ||
1679 | if | |
1680 | ( | |
1681 | !eq_asciicase(h,&str_from,0) | |
1682 | && !eq_asciicase(h,&str_to,0) | |
1683 | && !eq_asciicase(h,&str_cc,0) | |
1684 | && !eq_asciicase(h,&str_bcc,0) | |
1685 | && !eq_asciicase(h,&str_sender,0) | |
1686 | && !eq_asciicase(h,&str_resent_from,0) | |
1687 | && !eq_asciicase(h,&str_resent_to,0) | |
1688 | ) | |
1689 | { | |
1690 | filter->errmsg=CUS "invalid header field"; | |
1691 | return -1; | |
1692 | } | |
1693 | if (exec) | |
1694 | { | |
1695 | /* We are only interested in addresses below, so no MIME decoding */ | |
1696 | header_value=expand_string(string_sprintf("$rheader_%s",quote(h))); | |
1697 | if (header_value == NULL) | |
1698 | { | |
1699 | filter->errmsg=CUS "header string expansion failed"; | |
1700 | return -1; | |
1701 | } | |
1702 | parse_allow_group = TRUE; | |
1703 | while (*header_value && !*cond) | |
1704 | { | |
1705 | uschar *error; | |
1706 | int start, end, domain; | |
1707 | int saveend; | |
1708 | uschar *part=NULL; | |
1709 | ||
1710 | end_addr = parse_find_address_end(header_value, FALSE); | |
1711 | saveend = *end_addr; | |
1712 | *end_addr = 0; | |
1713 | extracted_addr = parse_extract_address(header_value, &error, &start, &end, &domain, FALSE); | |
1714 | ||
1715 | if (extracted_addr) switch (addressPart) | |
1716 | { | |
1717 | case ADDRPART_ALL: part=extracted_addr; break; | |
1718 | #ifdef SUBADDRESS | |
1719 | case ADDRPART_USER: | |
1720 | #endif | |
1721 | case ADDRPART_LOCALPART: part=extracted_addr; part[domain-1]='\0'; break; | |
1722 | case ADDRPART_DOMAIN: part=extracted_addr+domain; break; | |
1723 | #ifdef SUBADDRESS | |
e4a89c47 | 1724 | case ADDRPART_DETAIL: part=NULL; break; |
059ec3d9 | 1725 | #endif |
059ec3d9 PH |
1726 | } |
1727 | ||
1728 | *end_addr = saveend; | |
1729 | if (part) | |
1730 | { | |
1731 | for (k=key; k->length!=-1; ++k) | |
1732 | { | |
1733 | struct String partStr; | |
1734 | ||
1735 | partStr.character=part; | |
1736 | partStr.length=Ustrlen(part); | |
1737 | if (extracted_addr) | |
1738 | { | |
1739 | *cond=compare(filter,k,&partStr,comparator,matchType); | |
1740 | if (*cond==-1) return -1; | |
1741 | if (*cond) break; | |
1742 | } | |
1743 | } | |
1744 | } | |
1745 | if (saveend == 0) break; | |
1746 | header_value = end_addr + 1; | |
1747 | } | |
1748 | } | |
1749 | } | |
1750 | return 1; | |
1751 | } | |
1752 | else if (parse_identifier(filter,CUS "allof")) | |
1753 | { | |
1754 | /* | |
1755 | allof-test = "allof" <tests: test-list> | |
1756 | */ | |
1757 | ||
1758 | int n,true; | |
1759 | ||
1760 | switch (parse_testlist(filter,&n,&true,exec)) | |
1761 | { | |
1762 | case -1: return -1; | |
1763 | case 0: filter->errmsg=CUS "missing test list"; return -1; | |
1764 | default: *cond=(n==true); return 1; | |
1765 | } | |
1766 | } | |
1767 | else if (parse_identifier(filter,CUS "anyof")) | |
1768 | { | |
1769 | /* | |
1770 | anyof-test = "anyof" <tests: test-list> | |
1771 | */ | |
1772 | ||
1773 | int n,true; | |
1774 | ||
1775 | switch (parse_testlist(filter,&n,&true,exec)) | |
1776 | { | |
1777 | case -1: return -1; | |
1778 | case 0: filter->errmsg=CUS "missing test list"; return -1; | |
1779 | default: *cond=(true>0); return 1; | |
1780 | } | |
1781 | } | |
1782 | else if (parse_identifier(filter,CUS "exists")) | |
1783 | { | |
1784 | /* | |
1785 | exists-test = "exists" <header-names: string-list> | |
1786 | */ | |
1787 | ||
1788 | struct String *hdr,*h; | |
1789 | int m; | |
1790 | ||
1791 | if (parse_white(filter)==-1) return -1; | |
1792 | if ((m=parse_stringlist(filter,&hdr))!=1) | |
1793 | { | |
1794 | if (m==0) filter->errmsg=CUS "header string list expected"; | |
1795 | return -1; | |
1796 | } | |
1797 | if (exec) | |
1798 | { | |
1799 | *cond=1; | |
1800 | for (h=hdr; h->length!=-1 && *cond; ++h) | |
1801 | { | |
1802 | uschar *header_def; | |
1803 | ||
1804 | header_def=expand_string(string_sprintf("${if def:header_%s {true}{false}}",quote(h))); | |
1805 | if (header_def == NULL) | |
1806 | { | |
1807 | filter->errmsg=CUS "header string expansion failed"; | |
1808 | return -1; | |
1809 | } | |
1810 | if (Ustrcmp(header_def,"false")==0) *cond=0; | |
1811 | } | |
1812 | } | |
1813 | return 1; | |
1814 | } | |
1815 | else if (parse_identifier(filter,CUS "false")) | |
1816 | { | |
1817 | /* | |
1818 | false-test = "false" | |
1819 | */ | |
1820 | ||
1821 | *cond=0; | |
1822 | return 1; | |
1823 | } | |
1824 | else if (parse_identifier(filter,CUS "header")) | |
1825 | { | |
1826 | /* | |
1827 | header-test = "header" { [comparator] [match-type] } | |
1828 | <header-names: string-list> <key-list: string-list> | |
1829 | */ | |
1830 | ||
5ea81592 | 1831 | enum Comparator comparator=COMP_EN_ASCII_CASEMAP; |
059ec3d9 PH |
1832 | enum MatchType matchType=MATCH_IS; |
1833 | struct String *hdr,*h,*key,*k; | |
1834 | int m; | |
1835 | int co=0,mt=0; | |
1836 | ||
1837 | for (;;) | |
1838 | { | |
1839 | if (parse_white(filter)==-1) return -1; | |
1840 | if ((m=parse_comparator(filter,&comparator))!=0) | |
1841 | { | |
1842 | if (m==-1) return -1; | |
1843 | if (co) | |
1844 | { | |
1845 | filter->errmsg=CUS "comparator already specified"; | |
1846 | return -1; | |
1847 | } | |
1848 | else co=1; | |
1849 | } | |
1850 | else if ((m=parse_matchtype(filter,&matchType))!=0) | |
1851 | { | |
1852 | if (m==-1) return -1; | |
1853 | if (mt) | |
1854 | { | |
1855 | filter->errmsg=CUS "match type already specified"; | |
1856 | return -1; | |
1857 | } | |
1858 | else mt=1; | |
1859 | } | |
1860 | else break; | |
1861 | } | |
1862 | if (parse_white(filter)==-1) return -1; | |
1863 | if ((m=parse_stringlist(filter,&hdr))!=1) | |
1864 | { | |
1865 | if (m==0) filter->errmsg=CUS "header string list expected"; | |
1866 | return -1; | |
1867 | } | |
1868 | if (parse_white(filter)==-1) return -1; | |
1869 | if ((m=parse_stringlist(filter,&key))!=1) | |
1870 | { | |
1871 | if (m==0) filter->errmsg=CUS "key string list expected"; | |
1872 | return -1; | |
1873 | } | |
1874 | *cond=0; | |
1875 | for (h=hdr; h->length!=-1 && !*cond; ++h) | |
1876 | { | |
1877 | if (!is_header(h)) | |
1878 | { | |
1879 | filter->errmsg=CUS "invalid header field"; | |
1880 | return -1; | |
1881 | } | |
1882 | if (exec) | |
1883 | { | |
1884 | struct String header_value; | |
1885 | uschar *header_def; | |
1886 | ||
1887 | expand_header(&header_value,h); | |
1888 | header_def=expand_string(string_sprintf("${if def:header_%s {true}{false}}",quote(h))); | |
1889 | if (header_value.character == NULL || header_def == NULL) | |
1890 | { | |
1891 | filter->errmsg=CUS "header string expansion failed"; | |
1892 | return -1; | |
1893 | } | |
1894 | for (k=key; k->length!=-1; ++k) | |
1895 | { | |
1896 | if (Ustrcmp(header_def,"true")==0) | |
1897 | { | |
1898 | *cond=compare(filter,k,&header_value,comparator,matchType); | |
1899 | if (*cond==-1) return -1; | |
1900 | if (*cond) break; | |
1901 | } | |
1902 | } | |
1903 | } | |
1904 | } | |
1905 | return 1; | |
1906 | } | |
1907 | else if (parse_identifier(filter,CUS "not")) | |
1908 | { | |
1909 | if (parse_white(filter)==-1) return -1; | |
1910 | switch (parse_test(filter,cond,exec)) | |
1911 | { | |
1912 | case -1: return -1; | |
1913 | case 0: filter->errmsg=CUS "missing test"; return -1; | |
1914 | default: *cond=!*cond; return 1; | |
1915 | } | |
1916 | } | |
1917 | else if (parse_identifier(filter,CUS "size")) | |
1918 | { | |
1919 | /* | |
1920 | relop = ":over" / ":under" | |
1921 | size-test = "size" relop <limit: number> | |
1922 | */ | |
1923 | ||
1924 | unsigned long limit; | |
1925 | int overNotUnder; | |
1926 | ||
1927 | if (parse_white(filter)==-1) return -1; | |
1928 | if (parse_identifier(filter,CUS ":over")) overNotUnder=1; | |
1929 | else if (parse_identifier(filter,CUS ":under")) overNotUnder=0; | |
1930 | else | |
1931 | { | |
1932 | filter->errmsg=CUS "missing :over or :under"; | |
1933 | return -1; | |
1934 | } | |
1935 | if (parse_white(filter)==-1) return -1; | |
1936 | if (parse_number(filter,&limit)==-1) return -1; | |
1937 | *cond=(overNotUnder ? (message_size>limit) : (message_size<limit)); | |
1938 | return 1; | |
1939 | } | |
1940 | else if (parse_identifier(filter,CUS "true")) | |
1941 | { | |
1942 | *cond=1; | |
1943 | return 1; | |
1944 | } | |
1945 | else if (parse_identifier(filter,CUS "envelope")) | |
1946 | { | |
1947 | /* | |
1948 | envelope-test = "envelope" { [comparator] [address-part] [match-type] } | |
1949 | <envelope-part: string-list> <key-list: string-list> | |
1950 | ||
1951 | envelope-part is case insensitive "from" or "to" | |
1952 | */ | |
1953 | ||
5ea81592 | 1954 | enum Comparator comparator=COMP_EN_ASCII_CASEMAP; |
059ec3d9 PH |
1955 | enum AddressPart addressPart=ADDRPART_ALL; |
1956 | enum MatchType matchType=MATCH_IS; | |
1957 | struct String *env,*e,*key,*k; | |
1958 | int m; | |
1959 | int co=0,ap=0,mt=0; | |
1960 | ||
1961 | if (!filter->require_envelope) | |
1962 | { | |
1963 | filter->errmsg=CUS "missing previous require \"envelope\";"; | |
1964 | return -1; | |
1965 | } | |
1966 | for (;;) | |
1967 | { | |
1968 | if (parse_white(filter)==-1) return -1; | |
1969 | if ((m=parse_comparator(filter,&comparator))!=0) | |
1970 | { | |
1971 | if (m==-1) return -1; | |
1972 | if (co) | |
1973 | { | |
1974 | filter->errmsg=CUS "comparator already specified"; | |
1975 | return -1; | |
1976 | } | |
1977 | else co=1; | |
1978 | } | |
1979 | else if ((m=parse_addresspart(filter,&addressPart))!=0) | |
1980 | { | |
1981 | if (m==-1) return -1; | |
1982 | if (ap) | |
1983 | { | |
1984 | filter->errmsg=CUS "address part already specified"; | |
1985 | return -1; | |
1986 | } | |
1987 | else ap=1; | |
1988 | } | |
1989 | else if ((m=parse_matchtype(filter,&matchType))!=0) | |
1990 | { | |
1991 | if (m==-1) return -1; | |
1992 | if (mt) | |
1993 | { | |
1994 | filter->errmsg=CUS "match type already specified"; | |
1995 | return -1; | |
1996 | } | |
1997 | else mt=1; | |
1998 | } | |
1999 | else break; | |
2000 | } | |
2001 | if (parse_white(filter)==-1) return -1; | |
2002 | if ((m=parse_stringlist(filter,&env))!=1) | |
2003 | { | |
2004 | if (m==0) filter->errmsg=CUS "envelope string list expected"; | |
2005 | return -1; | |
2006 | } | |
2007 | if (parse_white(filter)==-1) return -1; | |
2008 | if ((m=parse_stringlist(filter,&key))!=1) | |
2009 | { | |
2010 | if (m==0) filter->errmsg=CUS "key string list expected"; | |
2011 | return -1; | |
2012 | } | |
2013 | *cond=0; | |
2014 | for (e=env; e->character; ++e) | |
2015 | { | |
2016 | const uschar *envelopeExpr=CUS 0; | |
2017 | uschar *envelope=US 0; | |
2018 | ||
2019 | if (eq_asciicase(e,&str_from,0)) | |
2020 | { | |
2021 | switch (addressPart) | |
2022 | { | |
2023 | case ADDRPART_ALL: envelopeExpr=CUS "$sender_address"; break; | |
2024 | #ifdef SUBADDRESS | |
2025 | case ADDRPART_USER: | |
2026 | #endif | |
2027 | case ADDRPART_LOCALPART: envelopeExpr=CUS "${local_part:$sender_address}"; break; | |
2028 | case ADDRPART_DOMAIN: envelopeExpr=CUS "${domain:$sender_address}"; break; | |
2029 | #ifdef SUBADDRESS | |
e4a89c47 | 2030 | case ADDRPART_DETAIL: envelopeExpr=CUS 0; break; |
059ec3d9 PH |
2031 | #endif |
2032 | } | |
2033 | } | |
2034 | else if (eq_asciicase(e,&str_to,0)) | |
2035 | { | |
2036 | switch (addressPart) | |
2037 | { | |
2038 | case ADDRPART_ALL: envelopeExpr=CUS "$local_part_prefix$local_part$local_part_suffix@$domain"; break; | |
2039 | #ifdef SUBADDRESS | |
e4a89c47 PH |
2040 | case ADDRPART_USER: envelopeExpr=filter->useraddress; break; |
2041 | case ADDRPART_DETAIL: envelopeExpr=filter->subaddress; break; | |
059ec3d9 PH |
2042 | #endif |
2043 | case ADDRPART_LOCALPART: envelopeExpr=CUS "$local_part_prefix$local_part$local_part_suffix"; break; | |
2044 | case ADDRPART_DOMAIN: envelopeExpr=CUS "$domain"; break; | |
2045 | } | |
2046 | } | |
2047 | else | |
2048 | { | |
2049 | filter->errmsg=CUS "invalid envelope string"; | |
2050 | return -1; | |
2051 | } | |
2052 | if (exec && envelopeExpr) | |
2053 | { | |
2054 | if ((envelope=expand_string(US envelopeExpr)) == NULL) | |
2055 | { | |
2056 | filter->errmsg=CUS "header string expansion failed"; | |
2057 | return -1; | |
2058 | } | |
2059 | for (k=key; k->length!=-1; ++k) | |
2060 | { | |
2061 | struct String envelopeStr; | |
2062 | ||
2063 | envelopeStr.character=envelope; | |
2064 | envelopeStr.length=Ustrlen(envelope); | |
7fe1560f | 2065 | *cond=compare(filter,k,&envelopeStr,comparator,matchType); |
059ec3d9 PH |
2066 | if (*cond==-1) return -1; |
2067 | if (*cond) break; | |
2068 | } | |
2069 | } | |
2070 | } | |
2071 | return 1; | |
2072 | } | |
2073 | else return 0; | |
2074 | } | |
2075 | ||
2076 | ||
2077 | /************************************************* | |
2078 | * Parse and interpret an optional block * | |
2079 | *************************************************/ | |
2080 | ||
2081 | /* | |
2082 | Arguments: | |
2083 | filter points to the Sieve filter including its state | |
2084 | exec Execute parsed statements | |
2085 | generated where to hang newly-generated addresses | |
2086 | ||
2087 | Returns: 2 success by stop | |
2088 | 1 other success | |
2089 | 0 no block command found | |
2090 | -1 syntax or execution error | |
2091 | */ | |
2092 | ||
2093 | static int parse_block(struct Sieve *filter, int exec, | |
2094 | address_item **generated) | |
2095 | { | |
2096 | int r; | |
2097 | ||
2098 | if (parse_white(filter)==-1) return -1; | |
2099 | if (*filter->pc=='{') | |
2100 | { | |
2101 | ++filter->pc; | |
2102 | if ((r=parse_commands(filter,exec,generated))==-1 || r==2) return r; | |
2103 | if (*filter->pc=='}') | |
2104 | { | |
2105 | ++filter->pc; | |
2106 | return 1; | |
2107 | } | |
2108 | else | |
2109 | { | |
8e669ac1 | 2110 | filter->errmsg=CUS "expecting command or closing brace"; |
059ec3d9 PH |
2111 | return -1; |
2112 | } | |
2113 | } | |
2114 | else return 0; | |
2115 | } | |
2116 | ||
2117 | ||
2118 | /************************************************* | |
2119 | * Match a semicolon * | |
2120 | *************************************************/ | |
2121 | ||
2122 | /* | |
2123 | Arguments: | |
2124 | filter points to the Sieve filter including its state | |
2125 | ||
2126 | Returns: 1 success | |
2127 | -1 syntax error | |
2128 | */ | |
2129 | ||
2130 | static int parse_semicolon(struct Sieve *filter) | |
2131 | { | |
2132 | if (parse_white(filter)==-1) return -1; | |
2133 | if (*filter->pc==';') | |
2134 | { | |
2135 | ++filter->pc; | |
2136 | return 1; | |
2137 | } | |
2138 | else | |
2139 | { | |
2140 | filter->errmsg=CUS "missing semicolon"; | |
2141 | return -1; | |
2142 | } | |
2143 | } | |
2144 | ||
2145 | ||
2146 | /************************************************* | |
2147 | * Parse and interpret a Sieve command * | |
2148 | *************************************************/ | |
2149 | ||
2150 | /* | |
2151 | Arguments: | |
2152 | filter points to the Sieve filter including its state | |
2153 | exec Execute parsed statements | |
2154 | generated where to hang newly-generated addresses | |
2155 | ||
2156 | Returns: 2 success by stop | |
2157 | 1 other success | |
2158 | -1 syntax or execution error | |
2159 | */ | |
2160 | static int parse_commands(struct Sieve *filter, int exec, | |
2161 | address_item **generated) | |
2162 | { | |
2163 | while (*filter->pc) | |
2164 | { | |
2165 | if (parse_white(filter)==-1) return -1; | |
2166 | if (parse_identifier(filter,CUS "if")) | |
2167 | { | |
2168 | /* | |
2169 | if-command = "if" test block *( "elsif" test block ) [ else block ] | |
2170 | */ | |
2171 | ||
2172 | int cond,m,unsuccessful; | |
2173 | ||
2174 | /* test block */ | |
2175 | if (parse_white(filter)==-1) return -1; | |
2176 | if ((m=parse_test(filter,&cond,exec))==-1) return -1; | |
2177 | if (m==0) | |
2178 | { | |
2179 | filter->errmsg=CUS "missing test"; | |
2180 | return -1; | |
2181 | } | |
2182 | m=parse_block(filter,exec ? cond : 0, generated); | |
2183 | if (m==-1 || m==2) return m; | |
2184 | if (m==0) | |
2185 | { | |
2186 | filter->errmsg=CUS "missing block"; | |
2187 | return -1; | |
2188 | } | |
2189 | unsuccessful = !cond; | |
2190 | for (;;) /* elsif test block */ | |
2191 | { | |
2192 | if (parse_white(filter)==-1) return -1; | |
2193 | if (parse_identifier(filter,CUS "elsif")) | |
2194 | { | |
2195 | if (parse_white(filter)==-1) return -1; | |
2196 | m=parse_test(filter,&cond,exec && unsuccessful); | |
2197 | if (m==-1 || m==2) return m; | |
2198 | if (m==0) | |
2199 | { | |
2200 | filter->errmsg=CUS "missing test"; | |
2201 | return -1; | |
2202 | } | |
2203 | m=parse_block(filter,exec && unsuccessful ? cond : 0, generated); | |
2204 | if (m==-1 || m==2) return m; | |
2205 | if (m==0) | |
2206 | { | |
2207 | filter->errmsg=CUS "missing block"; | |
2208 | return -1; | |
2209 | } | |
2210 | if (exec && unsuccessful && cond) unsuccessful = 0; | |
2211 | } | |
2212 | else break; | |
2213 | } | |
2214 | /* else block */ | |
2215 | if (parse_white(filter)==-1) return -1; | |
2216 | if (parse_identifier(filter,CUS "else")) | |
2217 | { | |
2218 | m=parse_block(filter,exec && unsuccessful, generated); | |
2219 | if (m==-1 || m==2) return m; | |
2220 | if (m==0) | |
2221 | { | |
2222 | filter->errmsg=CUS "missing block"; | |
2223 | return -1; | |
2224 | } | |
2225 | } | |
2226 | } | |
2227 | else if (parse_identifier(filter,CUS "stop")) | |
2228 | { | |
2229 | /* | |
2230 | stop-command = "stop" { stop-options } ";" | |
2231 | stop-options = | |
2232 | */ | |
2233 | ||
2234 | if (parse_semicolon(filter)==-1) return -1; | |
2235 | if (exec) | |
2236 | { | |
2237 | filter->pc+=Ustrlen(filter->pc); | |
2238 | return 2; | |
2239 | } | |
2240 | } | |
2241 | else if (parse_identifier(filter,CUS "keep")) | |
2242 | { | |
2243 | /* | |
2244 | keep-command = "keep" { keep-options } ";" | |
2245 | keep-options = | |
2246 | */ | |
2247 | ||
2248 | if (parse_semicolon(filter)==-1) return -1; | |
2249 | if (exec) | |
2250 | { | |
2251 | add_addr(generated,US"inbox",1,0,0,0); | |
2252 | filter->keep = 0; | |
2253 | } | |
2254 | } | |
2255 | else if (parse_identifier(filter,CUS "discard")) | |
2256 | { | |
2257 | /* | |
2258 | discard-command = "discard" { discard-options } ";" | |
2259 | discard-options = | |
2260 | */ | |
2261 | ||
2262 | if (parse_semicolon(filter)==-1) return -1; | |
2263 | if (exec) filter->keep=0; | |
2264 | } | |
2265 | else if (parse_identifier(filter,CUS "redirect")) | |
2266 | { | |
2267 | /* | |
2268 | redirect-command = "redirect" redirect-options "string" ";" | |
2269 | redirect-options = | |
2270 | redirect-options =) ":copy" | |
2271 | */ | |
2272 | ||
2273 | struct String recipient; | |
2274 | int m; | |
2275 | int copy=0; | |
2276 | ||
2277 | for (;;) | |
2278 | { | |
2279 | if (parse_white(filter)==-1) return -1; | |
2280 | if (parse_identifier(filter,CUS ":copy")==1) | |
2281 | { | |
2282 | if (!filter->require_copy) | |
2283 | { | |
2284 | filter->errmsg=CUS "missing previous require \"copy\";"; | |
2285 | return -1; | |
2286 | } | |
2287 | copy=1; | |
2288 | } | |
2289 | else break; | |
2290 | } | |
2291 | if (parse_white(filter)==-1) return -1; | |
2292 | if ((m=parse_string(filter,&recipient))!=1) | |
2293 | { | |
2294 | if (m==0) filter->errmsg=CUS "missing redirect recipient string"; | |
2295 | return -1; | |
2296 | } | |
2297 | if (strchr(CCS recipient.character,'@')==(char*)0) | |
2298 | { | |
2299 | filter->errmsg=CUS "unqualified recipient address"; | |
2300 | return -1; | |
2301 | } | |
2302 | if (exec) | |
2303 | { | |
2304 | add_addr(generated,recipient.character,0,0,0,0); | |
2305 | if (!copy) filter->keep = 0; | |
2306 | } | |
2307 | if (parse_semicolon(filter)==-1) return -1; | |
2308 | } | |
2309 | else if (parse_identifier(filter,CUS "fileinto")) | |
2310 | { | |
2311 | /* | |
2312 | fileinto-command = "fileinto" { fileinto-options } string ";" | |
2313 | fileinto-options = | |
2314 | fileinto-options =) [ ":copy" ] | |
5ea81592 | 2315 | */ |
059ec3d9 PH |
2316 | |
2317 | struct String folder; | |
2318 | uschar *s; | |
2319 | int m; | |
2320 | unsigned long maxage, maxmessages, maxstorage; | |
2321 | int copy=0; | |
2322 | ||
2323 | maxage = maxmessages = maxstorage = 0; | |
2324 | if (!filter->require_fileinto) | |
2325 | { | |
2326 | filter->errmsg=CUS "missing previous require \"fileinto\";"; | |
2327 | return -1; | |
2328 | } | |
2329 | for (;;) | |
2330 | { | |
2331 | if (parse_white(filter)==-1) return -1; | |
2332 | if (parse_identifier(filter,CUS ":copy")==1) | |
2333 | { | |
2334 | if (!filter->require_copy) | |
2335 | { | |
2336 | filter->errmsg=CUS "missing previous require \"copy\";"; | |
2337 | return -1; | |
2338 | } | |
2339 | copy=1; | |
2340 | } | |
2341 | else break; | |
2342 | } | |
2343 | if (parse_white(filter)==-1) return -1; | |
2344 | if ((m=parse_string(filter,&folder))!=1) | |
2345 | { | |
2346 | if (m==0) filter->errmsg=CUS "missing fileinto folder string"; | |
2347 | return -1; | |
2348 | } | |
2349 | m=0; s=folder.character; | |
2350 | if (folder.length==0) m=1; | |
2351 | if (Ustrcmp(s,"..")==0 || Ustrncmp(s,"../",3)==0) m=1; | |
2352 | else while (*s) | |
2353 | { | |
2354 | if (Ustrcmp(s,"/..")==0 || Ustrncmp(s,"/../",4)==0) { m=1; break; } | |
2355 | ++s; | |
2356 | } | |
2357 | if (m) | |
2358 | { | |
2359 | filter->errmsg=CUS "invalid folder"; | |
2360 | return -1; | |
2361 | } | |
2362 | if (exec) | |
2363 | { | |
2364 | add_addr(generated, folder.character, 1, maxage, maxmessages, maxstorage); | |
2365 | if (!copy) filter->keep = 0; | |
2366 | } | |
2367 | if (parse_semicolon(filter)==-1) return -1; | |
2368 | } | |
2369 | #ifdef VACATION | |
2370 | else if (parse_identifier(filter,CUS "vacation")) | |
2371 | { | |
2372 | /* | |
2373 | vacation-command = "vacation" { vacation-options } <reason: string> ";" | |
2374 | vacation-options = [":days" number] | |
059ec3d9 | 2375 | [":subject" string] |
f656d135 PH |
2376 | [":from" string] |
2377 | [":addresses" string-list] | |
059ec3d9 | 2378 | [":mime"] |
f656d135 | 2379 | [":handle" string] |
059ec3d9 PH |
2380 | */ |
2381 | ||
2382 | int m; | |
2383 | unsigned long days; | |
059ec3d9 | 2384 | struct String subject; |
f656d135 PH |
2385 | struct String from; |
2386 | struct String *addresses; | |
059ec3d9 PH |
2387 | int reason_is_mime; |
2388 | string_item *aliases; | |
f656d135 | 2389 | struct String handle; |
059ec3d9 PH |
2390 | struct String reason; |
2391 | ||
2392 | if (!filter->require_vacation) | |
2393 | { | |
2394 | filter->errmsg=CUS "missing previous require \"vacation\";"; | |
2395 | return -1; | |
2396 | } | |
2397 | if (exec) | |
2398 | { | |
2399 | if (filter->vacation_ran) | |
2400 | { | |
2401 | filter->errmsg=CUS "trying to execute vacation more than once"; | |
2402 | return -1; | |
2403 | } | |
2404 | filter->vacation_ran=1; | |
2405 | } | |
2406 | days=VACATION_MIN_DAYS>7 ? VACATION_MIN_DAYS : 7; | |
2407 | subject.character=(uschar*)0; | |
2408 | subject.length=-1; | |
f656d135 PH |
2409 | from.character=(uschar*)0; |
2410 | from.length=-1; | |
2411 | addresses=(struct String*)0; | |
059ec3d9 PH |
2412 | aliases=NULL; |
2413 | reason_is_mime=0; | |
f656d135 PH |
2414 | handle.character=(uschar*)0; |
2415 | handle.length=-1; | |
059ec3d9 PH |
2416 | for (;;) |
2417 | { | |
2418 | if (parse_white(filter)==-1) return -1; | |
2419 | if (parse_identifier(filter,CUS ":days")==1) | |
2420 | { | |
2421 | if (parse_white(filter)==-1) return -1; | |
2422 | if (parse_number(filter,&days)==-1) return -1; | |
2423 | if (days<VACATION_MIN_DAYS) days=VACATION_MIN_DAYS; | |
2424 | else if (days>VACATION_MAX_DAYS) days=VACATION_MAX_DAYS; | |
2425 | } | |
f656d135 PH |
2426 | else if (parse_identifier(filter,CUS ":subject")==1) |
2427 | { | |
2428 | if (parse_white(filter)==-1) return -1; | |
2429 | if ((m=parse_string(filter,&subject))!=1) | |
2430 | { | |
2431 | if (m==0) filter->errmsg=CUS "subject string expected"; | |
2432 | return -1; | |
2433 | } | |
2434 | } | |
2435 | else if (parse_identifier(filter,CUS ":from")==1) | |
2436 | { | |
2437 | int start, end, domain; | |
2438 | uschar *error,*ss; | |
2439 | ||
2440 | if (parse_white(filter)==-1) return -1; | |
2441 | if ((m=parse_string(filter,&from))!=1) | |
2442 | { | |
2443 | if (m==0) filter->errmsg=CUS "from string expected"; | |
2444 | return -1; | |
2445 | } | |
2446 | if (from.length>0) | |
2447 | { | |
2448 | ss = parse_extract_address(from.character, &error, &start, &end, &domain, | |
2449 | FALSE); | |
2450 | if (ss == NULL) | |
2451 | { | |
2452 | filter->errmsg=string_sprintf("malformed address \"%s\" in " | |
2453 | "Sieve filter: %s", from.character, error); | |
2454 | return -1; | |
2455 | } | |
2456 | } | |
2457 | else | |
2458 | { | |
2459 | filter->errmsg=CUS "empty :from address in Sieve filter"; | |
2460 | return -1; | |
2461 | } | |
2462 | } | |
059ec3d9 PH |
2463 | else if (parse_identifier(filter,CUS ":addresses")==1) |
2464 | { | |
2465 | struct String *a; | |
2466 | ||
2467 | if (parse_white(filter)==-1) return -1; | |
2468 | if ((m=parse_stringlist(filter,&addresses))!=1) | |
2469 | { | |
2470 | if (m==0) filter->errmsg=CUS "addresses string list expected"; | |
2471 | return -1; | |
2472 | } | |
2473 | for (a=addresses; a->length!=-1; ++a) | |
2474 | { | |
2475 | string_item *new; | |
2476 | ||
2477 | new=store_get(sizeof(string_item)); | |
2478 | new->text=store_get(a->length+1); | |
2479 | if (a->length) memcpy(new->text,a->character,a->length); | |
2480 | new->text[a->length]='\0'; | |
2481 | new->next=aliases; | |
2482 | aliases=new; | |
2483 | } | |
2484 | } | |
f656d135 PH |
2485 | else if (parse_identifier(filter,CUS ":mime")==1) |
2486 | reason_is_mime=1; | |
2487 | else if (parse_identifier(filter,CUS ":handle")==1) | |
059ec3d9 PH |
2488 | { |
2489 | if (parse_white(filter)==-1) return -1; | |
f656d135 | 2490 | if ((m=parse_string(filter,&from))!=1) |
059ec3d9 | 2491 | { |
f656d135 | 2492 | if (m==0) filter->errmsg=CUS "handle string expected"; |
059ec3d9 PH |
2493 | return -1; |
2494 | } | |
2495 | } | |
059ec3d9 PH |
2496 | else break; |
2497 | } | |
2498 | if (parse_white(filter)==-1) return -1; | |
2499 | if ((m=parse_string(filter,&reason))!=1) | |
2500 | { | |
2501 | if (m==0) filter->errmsg=CUS "missing reason string"; | |
2502 | return -1; | |
2503 | } | |
5ea81592 PH |
2504 | if (reason_is_mime) |
2505 | { | |
2506 | uschar *s,*end; | |
2507 | ||
2508 | for (s=reason.character,end=reason.character+reason.length; s<end && (*s&0x80)==0; ++s); | |
2509 | if (s<end) | |
2510 | { | |
2511 | filter->errmsg=CUS "MIME reason string contains 8bit text"; | |
2512 | return -1; | |
2513 | } | |
2514 | } | |
059ec3d9 PH |
2515 | if (parse_semicolon(filter)==-1) return -1; |
2516 | ||
2517 | if (exec) | |
2518 | { | |
2519 | address_item *addr; | |
2520 | int capacity,start; | |
2521 | uschar *buffer; | |
2522 | int buffer_capacity; | |
2523 | struct String key; | |
2524 | md5 base; | |
2525 | uschar digest[16]; | |
2526 | uschar hexdigest[33]; | |
2527 | int i; | |
2528 | uschar *once; | |
2529 | ||
2530 | if (filter_personal(aliases,TRUE)) | |
2531 | { | |
4929acf0 PH |
2532 | if (filter_test == FTEST_NONE) |
2533 | { | |
2534 | /* ensure oncelog directory exists; failure will be detected later */ | |
059ec3d9 | 2535 | |
4929acf0 PH |
2536 | (void)directory_make(NULL, filter->vacation_directory, 0700, FALSE); |
2537 | } | |
059ec3d9 PH |
2538 | /* build oncelog filename */ |
2539 | ||
2540 | key.character=(uschar*)0; | |
2541 | key.length=0; | |
2542 | capacity=0; | |
f656d135 | 2543 | if (handle.length==-1) |
8e669ac1 | 2544 | { |
f656d135 PH |
2545 | if (subject.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,subject.character,subject.length); |
2546 | if (from.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,from.character,from.length); | |
2547 | key.character=string_cat(key.character,&capacity,&key.length,reason_is_mime?US"1":US"0",1); | |
2548 | key.character=string_cat(key.character,&capacity,&key.length,reason.character,reason.length); | |
8e669ac1 | 2549 | } |
f656d135 PH |
2550 | else |
2551 | key=handle; | |
059ec3d9 PH |
2552 | md5_start(&base); |
2553 | md5_end(&base, key.character, key.length, digest); | |
2554 | for (i = 0; i < 16; i++) sprintf(CS (hexdigest+2*i), "%02X", digest[i]); | |
4929acf0 | 2555 | if (filter_test != FTEST_NONE) |
059ec3d9 | 2556 | { |
4929acf0 | 2557 | debug_printf("Sieve: mail was personal, vacation file basename: %s\n", hexdigest); |
059ec3d9 | 2558 | } |
4929acf0 | 2559 | else |
059ec3d9 | 2560 | { |
4929acf0 PH |
2561 | capacity=Ustrlen(filter->vacation_directory); |
2562 | start=capacity; | |
2563 | once=string_cat(filter->vacation_directory,&capacity,&start,US"/",1); | |
2564 | once=string_cat(once,&capacity,&start,hexdigest,33); | |
2565 | once[start] = '\0'; | |
2566 | ||
2567 | /* process subject */ | |
2568 | ||
2569 | if (subject.length==-1) | |
2570 | { | |
2571 | expand_header(&subject,&str_subject); | |
4929acf0 PH |
2572 | capacity=6; |
2573 | start=6; | |
2574 | subject.character=string_cat(US"Auto: ",&capacity,&start,subject.character,subject.length); | |
2575 | subject.length=start; | |
2576 | } | |
2577 | ||
2578 | /* add address to list of generated addresses */ | |
2579 | ||
2580 | addr = deliver_make_addr(string_sprintf(">%.256s", sender_address), FALSE); | |
2581 | setflag(addr, af_pfr); | |
2582 | setflag(addr, af_ignore_error); | |
2583 | addr->next = *generated; | |
2584 | *generated = addr; | |
2585 | addr->reply = store_get(sizeof(reply_item)); | |
2586 | memset(addr->reply,0,sizeof(reply_item)); /* XXX */ | |
2587 | addr->reply->to = string_copy(sender_address); | |
f656d135 PH |
2588 | if (from.length==-1) |
2589 | addr->reply->from = expand_string(US"$local_part@$domain"); | |
2590 | else | |
2591 | addr->reply->from = from.character; | |
4929acf0 PH |
2592 | /* Allocation is larger than neccessary, but enough even for split MIME words */ |
2593 | buffer_capacity=16+4*subject.length; | |
2594 | buffer=store_get(buffer_capacity); | |
2595 | addr->reply->subject=parse_quote_2047(subject.character, subject.length, US"utf-8", buffer, buffer_capacity); | |
2596 | addr->reply->oncelog=once; | |
2597 | addr->reply->once_repeat=days*86400; | |
2598 | ||
2599 | /* build body and MIME headers */ | |
2600 | ||
2601 | if (reason_is_mime) | |
2602 | { | |
2603 | uschar *mime_body,*reason_end; | |
059ec3d9 | 2604 | #ifdef RFC_EOL |
4929acf0 | 2605 | static const uschar nlnl[]="\r\n\r\n"; |
059ec3d9 | 2606 | #else |
4929acf0 | 2607 | static const uschar nlnl[]="\n\n"; |
059ec3d9 PH |
2608 | #endif |
2609 | ||
4929acf0 PH |
2610 | for |
2611 | ( | |
2612 | mime_body=reason.character,reason_end=reason.character+reason.length; | |
2613 | mime_body<(reason_end-sizeof(nlnl)-1) && memcmp(mime_body,nlnl,sizeof(nlnl)-1); | |
2614 | ++mime_body | |
2615 | ); | |
2616 | capacity = 0; | |
2617 | start = 0; | |
2618 | addr->reply->headers = string_cat(NULL,&capacity,&start,reason.character,mime_body-reason.character); | |
2619 | addr->reply->headers[start] = '\0'; | |
2620 | capacity = 0; | |
2621 | start = 0; | |
2622 | if (mime_body+(sizeof(nlnl)-1)<reason_end) mime_body+=sizeof(nlnl)-1; | |
2623 | else mime_body=reason_end-1; | |
2624 | addr->reply->text = string_cat(NULL,&capacity,&start,mime_body,reason_end-mime_body); | |
2625 | addr->reply->text[start] = '\0'; | |
2626 | } | |
2627 | else | |
2628 | { | |
2629 | struct String qp; | |
2630 | ||
2631 | capacity = 0; | |
2632 | start = reason.length; | |
2633 | addr->reply->headers = US"MIME-Version: 1.0\n" | |
2634 | "Content-Type: text/plain;\n" | |
2635 | "\tcharset=\"utf-8\"\n" | |
2636 | "Content-Transfer-Encoding: quoted-printable"; | |
2637 | addr->reply->text = quoted_printable_encode(&reason,&qp)->character; | |
2638 | } | |
059ec3d9 | 2639 | } |
4929acf0 PH |
2640 | } |
2641 | else if (filter_test != FTEST_NONE) | |
059ec3d9 | 2642 | { |
4929acf0 | 2643 | debug_printf("Sieve: mail was not personal, vacation would ignore it\n"); |
059ec3d9 | 2644 | } |
059ec3d9 PH |
2645 | } |
2646 | } | |
4929acf0 | 2647 | else break; |
059ec3d9 | 2648 | #endif |
059ec3d9 PH |
2649 | } |
2650 | return 1; | |
2651 | } | |
2652 | ||
2653 | ||
2654 | /************************************************* | |
2655 | * Parse and interpret a sieve filter * | |
2656 | *************************************************/ | |
2657 | ||
2658 | /* | |
2659 | Arguments: | |
2660 | filter points to the Sieve filter including its state | |
2661 | exec Execute parsed statements | |
2662 | generated where to hang newly-generated addresses | |
2663 | ||
2664 | Returns: 1 success | |
2665 | -1 syntax or execution error | |
2666 | */ | |
2667 | ||
2668 | static int parse_start(struct Sieve *filter, int exec, | |
2669 | address_item **generated) | |
2670 | { | |
2671 | filter->pc=filter->filter; | |
2672 | filter->line=1; | |
2673 | filter->keep=1; | |
2674 | filter->require_envelope=0; | |
2675 | filter->require_fileinto=0; | |
2676 | #ifdef SUBADDRESS | |
2677 | filter->require_subaddress=0; | |
2678 | #endif | |
2679 | #ifdef VACATION | |
2680 | filter->require_vacation=0; | |
2681 | filter->vacation_ran=0; | |
2682 | #endif | |
2683 | filter->require_copy=0; | |
2684 | filter->require_iascii_numeric=0; | |
2685 | ||
2686 | if (parse_white(filter)==-1) return -1; | |
2687 | ||
4929acf0 | 2688 | if (exec && filter->vacation_directory != NULL && filter_test == FTEST_NONE) |
059ec3d9 PH |
2689 | { |
2690 | DIR *oncelogdir; | |
2691 | struct dirent *oncelog; | |
2692 | struct stat properties; | |
2693 | time_t now; | |
2694 | ||
2695 | /* clean up old vacation log databases */ | |
2696 | ||
2697 | oncelogdir=opendir(CS filter->vacation_directory); | |
2698 | ||
2699 | if (oncelogdir ==(DIR*)0 && errno != ENOENT) | |
2700 | { | |
2701 | filter->errmsg=CUS "unable to open vacation directory"; | |
2702 | return -1; | |
2703 | } | |
2704 | ||
2705 | if (oncelogdir != NULL) | |
2706 | { | |
2707 | time(&now); | |
2708 | ||
2709 | while ((oncelog=readdir(oncelogdir))!=(struct dirent*)0) | |
2710 | { | |
2711 | if (strlen(oncelog->d_name)==32) | |
2712 | { | |
2713 | uschar *s=string_sprintf("%s/%s",filter->vacation_directory,oncelog->d_name); | |
2714 | if (Ustat(s,&properties)==0 && (properties.st_mtime+VACATION_MAX_DAYS*86400)<now) | |
2715 | Uunlink(s); | |
2716 | } | |
2717 | } | |
2718 | closedir(oncelogdir); | |
2719 | } | |
2720 | } | |
2721 | ||
2722 | while (parse_identifier(filter,CUS "require")) | |
2723 | { | |
2724 | /* | |
2725 | require-command = "require" <capabilities: string-list> | |
2726 | */ | |
2727 | ||
2728 | struct String *cap,*check; | |
2729 | int m; | |
2730 | ||
2731 | if (parse_white(filter)==-1) return -1; | |
2732 | if ((m=parse_stringlist(filter,&cap))!=1) | |
2733 | { | |
2734 | if (m==0) filter->errmsg=CUS "capability string list expected"; | |
2735 | return -1; | |
2736 | } | |
2737 | for (check=cap; check->character; ++check) | |
2738 | { | |
5ea81592 PH |
2739 | if (eq_octet(check,&str_envelope,0)) filter->require_envelope=1; |
2740 | else if (eq_octet(check,&str_fileinto,0)) filter->require_fileinto=1; | |
059ec3d9 | 2741 | #ifdef SUBADDRESS |
5ea81592 | 2742 | else if (eq_octet(check,&str_subaddress,0)) filter->require_subaddress=1; |
059ec3d9 PH |
2743 | #endif |
2744 | #ifdef VACATION | |
5ea81592 | 2745 | else if (eq_octet(check,&str_vacation,0)) |
059ec3d9 | 2746 | { |
4929acf0 | 2747 | if (filter_test == FTEST_NONE && filter->vacation_directory == NULL) |
059ec3d9 PH |
2748 | { |
2749 | filter->errmsg=CUS "vacation disabled"; | |
2750 | return -1; | |
2751 | } | |
2752 | filter->require_vacation=1; | |
2753 | } | |
2754 | #endif | |
5ea81592 PH |
2755 | else if (eq_octet(check,&str_copy,0)) filter->require_copy=1; |
2756 | else if (eq_octet(check,&str_comparator_ioctet,0)) ; | |
2757 | else if (eq_octet(check,&str_comparator_iascii_casemap,0)) ; | |
2758 | else if (eq_octet(check,&str_comparator_enascii_casemap,0)) ; | |
2759 | else if (eq_octet(check,&str_comparator_iascii_numeric,0)) filter->require_iascii_numeric=1; | |
059ec3d9 PH |
2760 | else |
2761 | { | |
2762 | filter->errmsg=CUS "unknown capability"; | |
2763 | return -1; | |
2764 | } | |
2765 | } | |
2766 | if (parse_semicolon(filter)==-1) return -1; | |
2767 | } | |
2768 | if (parse_commands(filter,exec,generated)==-1) return -1; | |
2769 | if (*filter->pc) | |
2770 | { | |
2771 | filter->errmsg=CUS "syntax error"; | |
2772 | return -1; | |
2773 | } | |
2774 | return 1; | |
2775 | } | |
2776 | ||
2777 | ||
2778 | /************************************************* | |
2779 | * Interpret a sieve filter file * | |
2780 | *************************************************/ | |
2781 | ||
2782 | /* | |
2783 | Arguments: | |
2784 | filter points to the entire file, read into store as a single string | |
2785 | options controls whether various special things are allowed, and requests | |
2786 | special actions (not currently used) | |
2787 | sieve_vacation_directory where to store vacation "once" files | |
e4a89c47 PH |
2788 | useraddress string expression for :user part of address |
2789 | subaddress string expression for :subaddress part of address | |
059ec3d9 PH |
2790 | generated where to hang newly-generated addresses |
2791 | error where to pass back an error text | |
2792 | ||
2793 | Returns: FF_DELIVERED success, a significant action was taken | |
2794 | FF_NOTDELIVERED success, no significant action | |
2795 | FF_DEFER defer requested | |
2796 | FF_FAIL fail requested | |
2797 | FF_FREEZE freeze requested | |
2798 | FF_ERROR there was a problem | |
2799 | */ | |
2800 | ||
2801 | int | |
2802 | sieve_interpret(uschar *filter, int options, uschar *vacation_directory, | |
e4a89c47 | 2803 | uschar *useraddress, uschar *subaddress, address_item **generated, uschar **error) |
059ec3d9 PH |
2804 | { |
2805 | struct Sieve sieve; | |
2806 | int r; | |
2807 | uschar *msg; | |
2808 | ||
2809 | options = options; /* Keep picky compilers happy */ | |
2810 | error = error; | |
2811 | ||
2812 | DEBUG(D_route) debug_printf("Sieve: start of processing\n"); | |
2813 | sieve.filter=filter; | |
2814 | ||
2815 | if (vacation_directory == NULL) | |
2816 | sieve.vacation_directory = NULL; | |
2817 | else | |
2818 | { | |
2819 | sieve.vacation_directory=expand_string(vacation_directory); | |
2820 | if (sieve.vacation_directory == NULL) | |
2821 | { | |
2822 | *error = string_sprintf("failed to expand \"%s\" " | |
2823 | "(sieve_vacation_directory): %s", vacation_directory, | |
2824 | expand_string_message); | |
2825 | return FF_ERROR; | |
2826 | } | |
2827 | } | |
2828 | ||
e4a89c47 PH |
2829 | sieve.useraddress = useraddress == NULL ? CUS "$local_part_prefix$local_part$local_part_suffix" : useraddress; |
2830 | sieve.subaddress = subaddress; | |
2831 | ||
059ec3d9 PH |
2832 | #ifdef COMPILE_SYNTAX_CHECKER |
2833 | if (parse_start(&sieve,0,generated)==1) | |
2834 | #else | |
2835 | if (parse_start(&sieve,1,generated)==1) | |
2836 | #endif | |
2837 | { | |
2838 | if (sieve.keep) | |
2839 | { | |
2840 | add_addr(generated,US"inbox",1,0,0,0); | |
2841 | msg = string_sprintf("Keep"); | |
2842 | r = FF_DELIVERED; | |
2843 | } | |
2844 | else | |
2845 | { | |
2846 | msg = string_sprintf("No keep"); | |
2847 | r = FF_DELIVERED; | |
2848 | } | |
2849 | } | |
2850 | else | |
2851 | { | |
2852 | msg = string_sprintf("Sieve error: %s in line %d",sieve.errmsg,sieve.line); | |
2853 | #ifdef COMPILE_SYNTAX_CHECKER | |
2854 | r = FF_ERROR; | |
2855 | *error = msg; | |
2856 | #else | |
2857 | add_addr(generated,US"inbox",1,0,0,0); | |
2858 | r = FF_DELIVERED; | |
2859 | #endif | |
2860 | } | |
2861 | ||
2862 | #ifndef COMPILE_SYNTAX_CHECKER | |
f05da2e8 | 2863 | if (filter_test != FTEST_NONE) printf("%s\n", (const char*) msg); |
059ec3d9 PH |
2864 | else debug_printf("%s\n", msg); |
2865 | #endif | |
2866 | ||
2867 | DEBUG(D_route) debug_printf("Sieve: end of processing\n"); | |
2868 | return r; | |
2869 | } |