]>
Commit | Line | Data |
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c6905e45 | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
c6905e45 JH |
3 | #include "utf8.h" |
4 | #include "strbuf.h" | |
5 | #include "mailinfo.h" | |
6 | ||
7 | static void cleanup_space(struct strbuf *sb) | |
8 | { | |
9 | size_t pos, cnt; | |
10 | for (pos = 0; pos < sb->len; pos++) { | |
11 | if (isspace(sb->buf[pos])) { | |
12 | sb->buf[pos] = ' '; | |
13 | for (cnt = 0; isspace(sb->buf[pos + cnt + 1]); cnt++); | |
14 | strbuf_remove(sb, pos + 1, cnt); | |
15 | } | |
16 | } | |
17 | } | |
18 | ||
19 | static void get_sane_name(struct strbuf *out, struct strbuf *name, struct strbuf *email) | |
20 | { | |
21 | struct strbuf *src = name; | |
72ee47ce | 22 | if (!name->len || 60 < name->len || strpbrk(name->buf, "@<>")) |
c6905e45 JH |
23 | src = email; |
24 | else if (name == out) | |
25 | return; | |
26 | strbuf_reset(out); | |
27 | strbuf_addbuf(out, src); | |
28 | } | |
29 | ||
30 | static void parse_bogus_from(struct mailinfo *mi, const struct strbuf *line) | |
31 | { | |
32 | /* John Doe <johndoe> */ | |
33 | ||
34 | char *bra, *ket; | |
35 | /* This is fallback, so do not bother if we already have an | |
36 | * e-mail address. | |
37 | */ | |
38 | if (mi->email.len) | |
39 | return; | |
40 | ||
41 | bra = strchr(line->buf, '<'); | |
42 | if (!bra) | |
43 | return; | |
44 | ket = strchr(bra, '>'); | |
45 | if (!ket) | |
46 | return; | |
47 | ||
48 | strbuf_reset(&mi->email); | |
49 | strbuf_add(&mi->email, bra + 1, ket - bra - 1); | |
50 | ||
51 | strbuf_reset(&mi->name); | |
52 | strbuf_add(&mi->name, line->buf, bra - line->buf); | |
53 | strbuf_trim(&mi->name); | |
54 | get_sane_name(&mi->name, &mi->name, &mi->email); | |
55 | } | |
56 | ||
f357e5de KD |
57 | static const char *unquote_comment(struct strbuf *outbuf, const char *in) |
58 | { | |
59 | int c; | |
64127575 | 60 | int take_next_literally = 0; |
f357e5de KD |
61 | |
62 | strbuf_addch(outbuf, '('); | |
63 | ||
64 | while ((c = *in++) != 0) { | |
64127575 VS |
65 | if (take_next_literally == 1) { |
66 | take_next_literally = 0; | |
f357e5de KD |
67 | } else { |
68 | switch (c) { | |
69 | case '\\': | |
64127575 | 70 | take_next_literally = 1; |
f357e5de KD |
71 | continue; |
72 | case '(': | |
73 | in = unquote_comment(outbuf, in); | |
74 | continue; | |
75 | case ')': | |
76 | strbuf_addch(outbuf, ')'); | |
77 | return in; | |
78 | } | |
79 | } | |
80 | ||
81 | strbuf_addch(outbuf, c); | |
82 | } | |
83 | ||
84 | return in; | |
85 | } | |
86 | ||
87 | static const char *unquote_quoted_string(struct strbuf *outbuf, const char *in) | |
88 | { | |
89 | int c; | |
64127575 | 90 | int take_next_literally = 0; |
f357e5de KD |
91 | |
92 | while ((c = *in++) != 0) { | |
64127575 VS |
93 | if (take_next_literally == 1) { |
94 | take_next_literally = 0; | |
f357e5de KD |
95 | } else { |
96 | switch (c) { | |
97 | case '\\': | |
64127575 | 98 | take_next_literally = 1; |
f357e5de KD |
99 | continue; |
100 | case '"': | |
101 | return in; | |
102 | } | |
103 | } | |
104 | ||
105 | strbuf_addch(outbuf, c); | |
106 | } | |
107 | ||
108 | return in; | |
109 | } | |
110 | ||
111 | static void unquote_quoted_pair(struct strbuf *line) | |
112 | { | |
113 | struct strbuf outbuf; | |
114 | const char *in = line->buf; | |
115 | int c; | |
116 | ||
117 | strbuf_init(&outbuf, line->len); | |
118 | ||
119 | while ((c = *in++) != 0) { | |
120 | switch (c) { | |
121 | case '"': | |
122 | in = unquote_quoted_string(&outbuf, in); | |
123 | continue; | |
124 | case '(': | |
125 | in = unquote_comment(&outbuf, in); | |
126 | continue; | |
127 | } | |
128 | ||
129 | strbuf_addch(&outbuf, c); | |
130 | } | |
131 | ||
132 | strbuf_swap(&outbuf, line); | |
133 | strbuf_release(&outbuf); | |
134 | ||
135 | } | |
136 | ||
c6905e45 JH |
137 | static void handle_from(struct mailinfo *mi, const struct strbuf *from) |
138 | { | |
139 | char *at; | |
140 | size_t el; | |
141 | struct strbuf f; | |
142 | ||
143 | strbuf_init(&f, from->len); | |
144 | strbuf_addbuf(&f, from); | |
145 | ||
f357e5de KD |
146 | unquote_quoted_pair(&f); |
147 | ||
c6905e45 JH |
148 | at = strchr(f.buf, '@'); |
149 | if (!at) { | |
150 | parse_bogus_from(mi, from); | |
11fa5e2a | 151 | goto out; |
c6905e45 JH |
152 | } |
153 | ||
154 | /* | |
155 | * If we already have one email, don't take any confusing lines | |
156 | */ | |
11fa5e2a RS |
157 | if (mi->email.len && strchr(at + 1, '@')) |
158 | goto out; | |
c6905e45 JH |
159 | |
160 | /* Pick up the string around '@', possibly delimited with <> | |
161 | * pair; that is the email part. | |
162 | */ | |
163 | while (at > f.buf) { | |
164 | char c = at[-1]; | |
165 | if (isspace(c)) | |
166 | break; | |
167 | if (c == '<') { | |
168 | at[-1] = ' '; | |
169 | break; | |
170 | } | |
171 | at--; | |
172 | } | |
173 | el = strcspn(at, " \n\t\r\v\f>"); | |
174 | strbuf_reset(&mi->email); | |
175 | strbuf_add(&mi->email, at, el); | |
176 | strbuf_remove(&f, at - f.buf, el + (at[el] ? 1 : 0)); | |
177 | ||
178 | /* The remainder is name. It could be | |
179 | * | |
180 | * - "John Doe <john.doe@xz>" (a), or | |
181 | * - "john.doe@xz (John Doe)" (b), or | |
182 | * - "John (zzz) Doe <john.doe@xz> (Comment)" (c) | |
183 | * | |
184 | * but we have removed the email part, so | |
185 | * | |
186 | * - remove extra spaces which could stay after email (case 'c'), and | |
187 | * - trim from both ends, possibly removing the () pair at the end | |
188 | * (cases 'a' and 'b'). | |
189 | */ | |
190 | cleanup_space(&f); | |
191 | strbuf_trim(&f); | |
192 | if (f.buf[0] == '(' && f.len && f.buf[f.len - 1] == ')') { | |
193 | strbuf_remove(&f, 0, 1); | |
194 | strbuf_setlen(&f, f.len - 1); | |
195 | } | |
196 | ||
197 | get_sane_name(&mi->name, &f, &mi->email); | |
11fa5e2a | 198 | out: |
c6905e45 JH |
199 | strbuf_release(&f); |
200 | } | |
201 | ||
202 | static void handle_header(struct strbuf **out, const struct strbuf *line) | |
203 | { | |
204 | if (!*out) { | |
205 | *out = xmalloc(sizeof(struct strbuf)); | |
206 | strbuf_init(*out, line->len); | |
207 | } else | |
208 | strbuf_reset(*out); | |
209 | ||
210 | strbuf_addbuf(*out, line); | |
211 | } | |
212 | ||
213 | /* NOTE NOTE NOTE. We do not claim we do full MIME. We just attempt | |
214 | * to have enough heuristics to grok MIME encoded patches often found | |
215 | * on our mailing lists. For example, we do not even treat header lines | |
216 | * case insensitively. | |
217 | */ | |
218 | ||
219 | static int slurp_attr(const char *line, const char *name, struct strbuf *attr) | |
220 | { | |
221 | const char *ends, *ap = strcasestr(line, name); | |
222 | size_t sz; | |
223 | ||
224 | strbuf_setlen(attr, 0); | |
225 | if (!ap) | |
226 | return 0; | |
227 | ap += strlen(name); | |
228 | if (*ap == '"') { | |
229 | ap++; | |
230 | ends = "\""; | |
231 | } | |
232 | else | |
233 | ends = "; \t"; | |
234 | sz = strcspn(ap, ends); | |
235 | strbuf_add(attr, ap, sz); | |
236 | return 1; | |
237 | } | |
238 | ||
3aa4d81f RS |
239 | static int has_attr_value(const char *line, const char *name, const char *value) |
240 | { | |
241 | struct strbuf sb = STRBUF_INIT; | |
242 | int rc = slurp_attr(line, name, &sb) && !strcasecmp(sb.buf, value); | |
243 | strbuf_release(&sb); | |
244 | return rc; | |
245 | } | |
246 | ||
c6905e45 JH |
247 | static void handle_content_type(struct mailinfo *mi, struct strbuf *line) |
248 | { | |
249 | struct strbuf *boundary = xmalloc(sizeof(struct strbuf)); | |
250 | strbuf_init(boundary, line->len); | |
251 | ||
3aa4d81f RS |
252 | mi->format_flowed = has_attr_value(line->buf, "format=", "flowed"); |
253 | mi->delsp = has_attr_value(line->buf, "delsp=", "yes"); | |
254 | ||
c6905e45 | 255 | if (slurp_attr(line->buf, "boundary=", boundary)) { |
a91cc7fa | 256 | strbuf_insertstr(boundary, 0, "--"); |
c6905e45 | 257 | if (++mi->content_top >= &mi->content[MAX_BOUNDARIES]) { |
6ac617a3 JH |
258 | error("Too many boundaries to handle"); |
259 | mi->input_error = -1; | |
260 | mi->content_top = &mi->content[MAX_BOUNDARIES] - 1; | |
261 | return; | |
c6905e45 JH |
262 | } |
263 | *(mi->content_top) = boundary; | |
264 | boundary = NULL; | |
265 | } | |
266 | slurp_attr(line->buf, "charset=", &mi->charset); | |
267 | ||
268 | if (boundary) { | |
269 | strbuf_release(boundary); | |
270 | free(boundary); | |
271 | } | |
272 | } | |
273 | ||
c6905e45 JH |
274 | static void handle_content_transfer_encoding(struct mailinfo *mi, |
275 | const struct strbuf *line) | |
276 | { | |
277 | if (strcasestr(line->buf, "base64")) | |
278 | mi->transfer_encoding = TE_BASE64; | |
279 | else if (strcasestr(line->buf, "quoted-printable")) | |
280 | mi->transfer_encoding = TE_QP; | |
281 | else | |
282 | mi->transfer_encoding = TE_DONTCARE; | |
283 | } | |
284 | ||
285 | static int is_multipart_boundary(struct mailinfo *mi, const struct strbuf *line) | |
286 | { | |
287 | struct strbuf *content_top = *(mi->content_top); | |
288 | ||
289 | return ((content_top->len <= line->len) && | |
290 | !memcmp(line->buf, content_top->buf, content_top->len)); | |
291 | } | |
292 | ||
293 | static void cleanup_subject(struct mailinfo *mi, struct strbuf *subject) | |
294 | { | |
295 | size_t at = 0; | |
296 | ||
297 | while (at < subject->len) { | |
298 | char *pos; | |
299 | size_t remove; | |
300 | ||
301 | switch (subject->buf[at]) { | |
302 | case 'r': case 'R': | |
303 | if (subject->len <= at + 3) | |
304 | break; | |
305 | if ((subject->buf[at + 1] == 'e' || | |
306 | subject->buf[at + 1] == 'E') && | |
307 | subject->buf[at + 2] == ':') { | |
308 | strbuf_remove(subject, at, 3); | |
309 | continue; | |
310 | } | |
311 | at++; | |
312 | break; | |
313 | case ' ': case '\t': case ':': | |
314 | strbuf_remove(subject, at, 1); | |
315 | continue; | |
316 | case '[': | |
317 | pos = strchr(subject->buf + at, ']'); | |
318 | if (!pos) | |
319 | break; | |
320 | remove = pos - subject->buf + at + 1; | |
321 | if (!mi->keep_non_patch_brackets_in_subject || | |
322 | (7 <= remove && | |
323 | memmem(subject->buf + at, remove, "PATCH", 5))) | |
324 | strbuf_remove(subject, at, remove); | |
325 | else { | |
326 | at += remove; | |
327 | /* | |
328 | * If the input had a space after the ], keep | |
329 | * it. We don't bother with finding the end of | |
330 | * the space, since we later normalize it | |
331 | * anyway. | |
332 | */ | |
333 | if (isspace(subject->buf[at])) | |
334 | at += 1; | |
335 | } | |
336 | continue; | |
337 | } | |
338 | break; | |
339 | } | |
340 | strbuf_trim(subject); | |
341 | } | |
342 | ||
343 | #define MAX_HDR_PARSED 10 | |
344 | static const char *header[MAX_HDR_PARSED] = { | |
345 | "From","Subject","Date", | |
346 | }; | |
347 | ||
f447d029 JK |
348 | static inline int skip_header(const struct strbuf *line, const char *hdr, |
349 | const char **outval) | |
c6905e45 | 350 | { |
f447d029 JK |
351 | const char *val; |
352 | if (!skip_iprefix(line->buf, hdr, &val) || | |
ffbea181 | 353 | *val++ != ':') |
f447d029 | 354 | return 0; |
ffbea181 JK |
355 | while (isspace(*val)) |
356 | val++; | |
f447d029 JK |
357 | *outval = val; |
358 | return 1; | |
c6905e45 JH |
359 | } |
360 | ||
361 | static int is_format_patch_separator(const char *line, int len) | |
362 | { | |
363 | static const char SAMPLE[] = | |
364 | "From e6807f3efca28b30decfecb1732a56c7db1137ee Mon Sep 17 00:00:00 2001\n"; | |
365 | const char *cp; | |
366 | ||
367 | if (len != strlen(SAMPLE)) | |
368 | return 0; | |
369 | if (!skip_prefix(line, "From ", &cp)) | |
370 | return 0; | |
371 | if (strspn(cp, "0123456789abcdef") != 40) | |
372 | return 0; | |
373 | cp += 40; | |
374 | return !memcmp(SAMPLE + (cp - line), cp, strlen(SAMPLE) - (cp - line)); | |
375 | } | |
376 | ||
377 | static struct strbuf *decode_q_segment(const struct strbuf *q_seg, int rfc2047) | |
378 | { | |
379 | const char *in = q_seg->buf; | |
380 | int c; | |
381 | struct strbuf *out = xmalloc(sizeof(struct strbuf)); | |
382 | strbuf_init(out, q_seg->len); | |
383 | ||
384 | while ((c = *in++) != 0) { | |
385 | if (c == '=') { | |
c8cf423e | 386 | int ch, d = *in; |
c6905e45 JH |
387 | if (d == '\n' || !d) |
388 | break; /* drop trailing newline */ | |
c8cf423e RS |
389 | ch = hex2chr(in); |
390 | if (ch >= 0) { | |
391 | strbuf_addch(out, ch); | |
392 | in += 2; | |
393 | continue; | |
394 | } | |
395 | /* garbage -- fall through */ | |
c6905e45 JH |
396 | } |
397 | if (rfc2047 && c == '_') /* rfc2047 4.2 (2) */ | |
398 | c = 0x20; | |
399 | strbuf_addch(out, c); | |
400 | } | |
401 | return out; | |
402 | } | |
403 | ||
404 | static struct strbuf *decode_b_segment(const struct strbuf *b_seg) | |
405 | { | |
406 | /* Decode in..ep, possibly in-place to ot */ | |
407 | int c, pos = 0, acc = 0; | |
408 | const char *in = b_seg->buf; | |
409 | struct strbuf *out = xmalloc(sizeof(struct strbuf)); | |
410 | strbuf_init(out, b_seg->len); | |
411 | ||
412 | while ((c = *in++) != 0) { | |
413 | if (c == '+') | |
414 | c = 62; | |
415 | else if (c == '/') | |
416 | c = 63; | |
417 | else if ('A' <= c && c <= 'Z') | |
418 | c -= 'A'; | |
419 | else if ('a' <= c && c <= 'z') | |
420 | c -= 'a' - 26; | |
421 | else if ('0' <= c && c <= '9') | |
422 | c -= '0' - 52; | |
423 | else | |
424 | continue; /* garbage */ | |
425 | switch (pos++) { | |
426 | case 0: | |
427 | acc = (c << 2); | |
428 | break; | |
429 | case 1: | |
430 | strbuf_addch(out, (acc | (c >> 4))); | |
431 | acc = (c & 15) << 4; | |
432 | break; | |
433 | case 2: | |
434 | strbuf_addch(out, (acc | (c >> 2))); | |
435 | acc = (c & 3) << 6; | |
436 | break; | |
437 | case 3: | |
438 | strbuf_addch(out, (acc | c)); | |
439 | acc = pos = 0; | |
440 | break; | |
441 | } | |
442 | } | |
443 | return out; | |
444 | } | |
445 | ||
669b963a JH |
446 | static int convert_to_utf8(struct mailinfo *mi, |
447 | struct strbuf *line, const char *charset) | |
c6905e45 JH |
448 | { |
449 | char *out; | |
2a2ff603 | 450 | size_t out_len; |
c6905e45 JH |
451 | |
452 | if (!mi->metainfo_charset || !charset || !*charset) | |
669b963a | 453 | return 0; |
c6905e45 JH |
454 | |
455 | if (same_encoding(mi->metainfo_charset, charset)) | |
669b963a | 456 | return 0; |
2a2ff603 ĐTCD |
457 | out = reencode_string_len(line->buf, line->len, |
458 | mi->metainfo_charset, charset, &out_len); | |
6ac617a3 JH |
459 | if (!out) { |
460 | mi->input_error = -1; | |
669b963a JH |
461 | return error("cannot convert from %s to %s", |
462 | charset, mi->metainfo_charset); | |
6ac617a3 | 463 | } |
2a2ff603 | 464 | strbuf_attach(line, out, out_len, out_len); |
669b963a | 465 | return 0; |
c6905e45 JH |
466 | } |
467 | ||
468 | static void decode_header(struct mailinfo *mi, struct strbuf *it) | |
469 | { | |
470 | char *in, *ep, *cp; | |
471 | struct strbuf outbuf = STRBUF_INIT, *dec; | |
472 | struct strbuf charset_q = STRBUF_INIT, piecebuf = STRBUF_INIT; | |
6ac617a3 | 473 | int found_error = 1; /* pessimism */ |
c6905e45 JH |
474 | |
475 | in = it->buf; | |
476 | while (in - it->buf <= it->len && (ep = strstr(in, "=?")) != NULL) { | |
477 | int encoding; | |
478 | strbuf_reset(&charset_q); | |
479 | strbuf_reset(&piecebuf); | |
480 | ||
481 | if (in != ep) { | |
482 | /* | |
483 | * We are about to process an encoded-word | |
484 | * that begins at ep, but there is something | |
485 | * before the encoded word. | |
486 | */ | |
487 | char *scan; | |
488 | for (scan = in; scan < ep; scan++) | |
489 | if (!isspace(*scan)) | |
490 | break; | |
491 | ||
492 | if (scan != ep || in == it->buf) { | |
493 | /* | |
494 | * We should not lose that "something", | |
495 | * unless we have just processed an | |
496 | * encoded-word, and there is only LWS | |
497 | * before the one we are about to process. | |
498 | */ | |
499 | strbuf_add(&outbuf, in, ep - in); | |
500 | } | |
501 | } | |
502 | /* E.g. | |
503 | * ep : "=?iso-2022-jp?B?GyR...?= foo" | |
504 | * ep : "=?ISO-8859-1?Q?Foo=FCbar?= baz" | |
505 | */ | |
506 | ep += 2; | |
507 | ||
508 | if (ep - it->buf >= it->len || !(cp = strchr(ep, '?'))) | |
509 | goto release_return; | |
510 | ||
511 | if (cp + 3 - it->buf > it->len) | |
512 | goto release_return; | |
513 | strbuf_add(&charset_q, ep, cp - ep); | |
514 | ||
515 | encoding = cp[1]; | |
516 | if (!encoding || cp[2] != '?') | |
517 | goto release_return; | |
518 | ep = strstr(cp + 3, "?="); | |
519 | if (!ep) | |
520 | goto release_return; | |
521 | strbuf_add(&piecebuf, cp + 3, ep - cp - 3); | |
522 | switch (tolower(encoding)) { | |
523 | default: | |
524 | goto release_return; | |
525 | case 'b': | |
526 | dec = decode_b_segment(&piecebuf); | |
527 | break; | |
528 | case 'q': | |
529 | dec = decode_q_segment(&piecebuf, 1); | |
530 | break; | |
531 | } | |
669b963a JH |
532 | if (convert_to_utf8(mi, dec, charset_q.buf)) |
533 | goto release_return; | |
c6905e45 JH |
534 | |
535 | strbuf_addbuf(&outbuf, dec); | |
536 | strbuf_release(dec); | |
537 | free(dec); | |
538 | in = ep + 2; | |
539 | } | |
540 | strbuf_addstr(&outbuf, in); | |
541 | strbuf_reset(it); | |
542 | strbuf_addbuf(it, &outbuf); | |
6ac617a3 | 543 | found_error = 0; |
c6905e45 JH |
544 | release_return: |
545 | strbuf_release(&outbuf); | |
546 | strbuf_release(&charset_q); | |
547 | strbuf_release(&piecebuf); | |
6ac617a3 JH |
548 | |
549 | if (found_error) | |
550 | mi->input_error = -1; | |
c6905e45 JH |
551 | } |
552 | ||
f696a2b1 JK |
553 | /* |
554 | * Returns true if "line" contains a header matching "hdr", in which case "val" | |
555 | * will contain the value of the header with any RFC2047 B and Q encoding | |
556 | * unwrapped, and optionally normalize the meta information to utf8. | |
557 | */ | |
558 | static int parse_header(const struct strbuf *line, | |
559 | const char *hdr, | |
560 | struct mailinfo *mi, | |
561 | struct strbuf *val) | |
562 | { | |
563 | const char *val_str; | |
564 | ||
565 | if (!skip_header(line, hdr, &val_str)) | |
566 | return 0; | |
567 | strbuf_addstr(val, val_str); | |
568 | decode_header(mi, val); | |
569 | return 1; | |
570 | } | |
571 | ||
c6905e45 JH |
572 | static int check_header(struct mailinfo *mi, |
573 | const struct strbuf *line, | |
574 | struct strbuf *hdr_data[], int overwrite) | |
575 | { | |
f447d029 | 576 | int i, ret = 0; |
c6905e45 JH |
577 | struct strbuf sb = STRBUF_INIT; |
578 | ||
579 | /* search for the interesting parts */ | |
580 | for (i = 0; header[i]; i++) { | |
f447d029 | 581 | if ((!hdr_data[i] || overwrite) && |
f696a2b1 | 582 | parse_header(line, header[i], mi, &sb)) { |
c6905e45 JH |
583 | handle_header(&hdr_data[i], &sb); |
584 | ret = 1; | |
585 | goto check_header_out; | |
586 | } | |
587 | } | |
588 | ||
589 | /* Content stuff */ | |
f696a2b1 | 590 | if (parse_header(line, "Content-Type", mi, &sb)) { |
c6905e45 JH |
591 | handle_content_type(mi, &sb); |
592 | ret = 1; | |
593 | goto check_header_out; | |
594 | } | |
f696a2b1 | 595 | if (parse_header(line, "Content-Transfer-Encoding", mi, &sb)) { |
c6905e45 JH |
596 | handle_content_transfer_encoding(mi, &sb); |
597 | ret = 1; | |
598 | goto check_header_out; | |
599 | } | |
f696a2b1 | 600 | if (parse_header(line, "Message-Id", mi, &sb)) { |
ecf30b23 RS |
601 | if (mi->add_message_id) |
602 | mi->message_id = strbuf_detach(&sb, NULL); | |
c6905e45 JH |
603 | ret = 1; |
604 | goto check_header_out; | |
605 | } | |
606 | ||
c6905e45 JH |
607 | check_header_out: |
608 | strbuf_release(&sb); | |
609 | return ret; | |
610 | } | |
611 | ||
6b4b013f JT |
612 | /* |
613 | * Returns 1 if the given line or any line beginning with the given line is an | |
614 | * in-body header (that is, check_header will succeed when passed | |
615 | * mi->s_hdr_data). | |
616 | */ | |
617 | static int is_inbody_header(const struct mailinfo *mi, | |
618 | const struct strbuf *line) | |
619 | { | |
620 | int i; | |
f447d029 | 621 | const char *val; |
6b4b013f | 622 | for (i = 0; header[i]; i++) |
f447d029 | 623 | if (!mi->s_hdr_data[i] && skip_header(line, header[i], &val)) |
6b4b013f JT |
624 | return 1; |
625 | return 0; | |
626 | } | |
627 | ||
c6905e45 JH |
628 | static void decode_transfer_encoding(struct mailinfo *mi, struct strbuf *line) |
629 | { | |
630 | struct strbuf *ret; | |
631 | ||
632 | switch (mi->transfer_encoding) { | |
633 | case TE_QP: | |
634 | ret = decode_q_segment(line, 0); | |
635 | break; | |
636 | case TE_BASE64: | |
637 | ret = decode_b_segment(line); | |
638 | break; | |
639 | case TE_DONTCARE: | |
640 | default: | |
641 | return; | |
642 | } | |
643 | strbuf_reset(line); | |
644 | strbuf_addbuf(line, ret); | |
645 | strbuf_release(ret); | |
646 | free(ret); | |
647 | } | |
648 | ||
649 | static inline int patchbreak(const struct strbuf *line) | |
650 | { | |
651 | size_t i; | |
652 | ||
653 | /* Beginning of a "diff -" header? */ | |
654 | if (starts_with(line->buf, "diff -")) | |
655 | return 1; | |
656 | ||
657 | /* CVS "Index: " line? */ | |
658 | if (starts_with(line->buf, "Index: ")) | |
659 | return 1; | |
660 | ||
661 | /* | |
662 | * "--- <filename>" starts patches without headers | |
663 | * "---<sp>*" is a manual separator | |
664 | */ | |
665 | if (line->len < 4) | |
666 | return 0; | |
667 | ||
668 | if (starts_with(line->buf, "---")) { | |
669 | /* space followed by a filename? */ | |
670 | if (line->buf[3] == ' ' && !isspace(line->buf[4])) | |
671 | return 1; | |
672 | /* Just whitespace? */ | |
673 | for (i = 3; i < line->len; i++) { | |
674 | unsigned char c = line->buf[i]; | |
675 | if (c == '\n') | |
676 | return 1; | |
677 | if (!isspace(c)) | |
678 | break; | |
679 | } | |
680 | return 0; | |
681 | } | |
682 | return 0; | |
683 | } | |
684 | ||
9c5681da | 685 | static int is_scissors_line(const char *line) |
c6905e45 | 686 | { |
9c5681da | 687 | const char *c; |
c6905e45 | 688 | int scissors = 0, gap = 0; |
9c5681da JT |
689 | const char *first_nonblank = NULL, *last_nonblank = NULL; |
690 | int visible, perforation = 0, in_perforation = 0; | |
c6905e45 | 691 | |
9c5681da JT |
692 | for (c = line; *c; c++) { |
693 | if (isspace(*c)) { | |
c6905e45 JH |
694 | if (in_perforation) { |
695 | perforation++; | |
696 | gap++; | |
697 | } | |
698 | continue; | |
699 | } | |
9c5681da JT |
700 | last_nonblank = c; |
701 | if (first_nonblank == NULL) | |
702 | first_nonblank = c; | |
703 | if (*c == '-') { | |
c6905e45 JH |
704 | in_perforation = 1; |
705 | perforation++; | |
706 | continue; | |
707 | } | |
4184cbd6 AR |
708 | if (starts_with(c, ">8") || starts_with(c, "8<") || |
709 | starts_with(c, ">%") || starts_with(c, "%<")) { | |
c6905e45 JH |
710 | in_perforation = 1; |
711 | perforation += 2; | |
712 | scissors += 2; | |
9c5681da | 713 | c++; |
c6905e45 JH |
714 | continue; |
715 | } | |
716 | in_perforation = 0; | |
717 | } | |
718 | ||
719 | /* | |
720 | * The mark must be at least 8 bytes long (e.g. "-- >8 --"). | |
721 | * Even though there can be arbitrary cruft on the same line | |
722 | * (e.g. "cut here"), in order to avoid misidentification, the | |
723 | * perforation must occupy more than a third of the visible | |
724 | * width of the line, and dashes and scissors must occupy more | |
725 | * than half of the perforation. | |
726 | */ | |
727 | ||
9c5681da JT |
728 | if (first_nonblank && last_nonblank) |
729 | visible = last_nonblank - first_nonblank + 1; | |
730 | else | |
731 | visible = 0; | |
c6905e45 JH |
732 | return (scissors && 8 <= visible && |
733 | visible < perforation * 3 && | |
734 | gap * 2 < perforation); | |
735 | } | |
736 | ||
6b4b013f JT |
737 | static void flush_inbody_header_accum(struct mailinfo *mi) |
738 | { | |
739 | if (!mi->inbody_header_accum.len) | |
740 | return; | |
08414938 | 741 | if (!check_header(mi, &mi->inbody_header_accum, mi->s_hdr_data, 0)) |
033abf97 | 742 | BUG("inbody_header_accum, if not empty, must always contain a valid in-body header"); |
6b4b013f JT |
743 | strbuf_reset(&mi->inbody_header_accum); |
744 | } | |
745 | ||
334192b4 JT |
746 | static int check_inbody_header(struct mailinfo *mi, const struct strbuf *line) |
747 | { | |
6b4b013f JT |
748 | if (mi->inbody_header_accum.len && |
749 | (line->buf[0] == ' ' || line->buf[0] == '\t')) { | |
750 | if (mi->use_scissors && is_scissors_line(line->buf)) { | |
751 | /* | |
752 | * This is a scissors line; do not consider this line | |
753 | * as a header continuation line. | |
754 | */ | |
755 | flush_inbody_header_accum(mi); | |
756 | return 0; | |
757 | } | |
758 | strbuf_strip_suffix(&mi->inbody_header_accum, "\n"); | |
759 | strbuf_addbuf(&mi->inbody_header_accum, line); | |
760 | return 1; | |
761 | } | |
762 | ||
763 | flush_inbody_header_accum(mi); | |
764 | ||
334192b4 JT |
765 | if (starts_with(line->buf, ">From") && isspace(line->buf[5])) |
766 | return is_format_patch_separator(line->buf + 1, line->len - 1); | |
767 | if (starts_with(line->buf, "[PATCH]") && isspace(line->buf[7])) { | |
768 | int i; | |
769 | for (i = 0; header[i]; i++) | |
770 | if (!strcmp("Subject", header[i])) { | |
771 | handle_header(&mi->s_hdr_data[i], line); | |
772 | return 1; | |
773 | } | |
774 | return 0; | |
775 | } | |
6b4b013f JT |
776 | if (is_inbody_header(mi, line)) { |
777 | strbuf_addbuf(&mi->inbody_header_accum, line); | |
778 | return 1; | |
779 | } | |
780 | return 0; | |
334192b4 JT |
781 | } |
782 | ||
c6905e45 JH |
783 | static int handle_commit_msg(struct mailinfo *mi, struct strbuf *line) |
784 | { | |
785 | assert(!mi->filter_stage); | |
786 | ||
787 | if (mi->header_stage) { | |
fd1062e5 LT |
788 | if (!line->len || (line->len == 1 && line->buf[0] == '\n')) { |
789 | if (mi->inbody_header_accum.len) { | |
790 | flush_inbody_header_accum(mi); | |
791 | mi->header_stage = 0; | |
792 | } | |
c6905e45 | 793 | return 0; |
fd1062e5 | 794 | } |
c6905e45 JH |
795 | } |
796 | ||
797 | if (mi->use_inbody_headers && mi->header_stage) { | |
334192b4 | 798 | mi->header_stage = check_inbody_header(mi, line); |
c6905e45 JH |
799 | if (mi->header_stage) |
800 | return 0; | |
801 | } else | |
802 | /* Only trim the first (blank) line of the commit message | |
803 | * when ignoring in-body headers. | |
804 | */ | |
805 | mi->header_stage = 0; | |
806 | ||
807 | /* normalize the log message to UTF-8. */ | |
669b963a | 808 | if (convert_to_utf8(mi, line, mi->charset.buf)) |
6ac617a3 | 809 | return 0; /* mi->input_error already set */ |
c6905e45 | 810 | |
9c5681da | 811 | if (mi->use_scissors && is_scissors_line(line->buf)) { |
c6905e45 JH |
812 | int i; |
813 | ||
814 | strbuf_setlen(&mi->log_message, 0); | |
815 | mi->header_stage = 1; | |
816 | ||
817 | /* | |
818 | * We may have already read "secondary headers"; purge | |
819 | * them to give ourselves a clean restart. | |
820 | */ | |
821 | for (i = 0; header[i]; i++) { | |
822 | if (mi->s_hdr_data[i]) | |
823 | strbuf_release(mi->s_hdr_data[i]); | |
f3a96807 | 824 | FREE_AND_NULL(mi->s_hdr_data[i]); |
c6905e45 JH |
825 | } |
826 | return 0; | |
827 | } | |
828 | ||
829 | if (patchbreak(line)) { | |
830 | if (mi->message_id) | |
831 | strbuf_addf(&mi->log_message, | |
832 | "Message-Id: %s\n", mi->message_id); | |
833 | return 1; | |
834 | } | |
835 | ||
836 | strbuf_addbuf(&mi->log_message, line); | |
837 | return 0; | |
838 | } | |
839 | ||
840 | static void handle_patch(struct mailinfo *mi, const struct strbuf *line) | |
841 | { | |
842 | fwrite(line->buf, 1, line->len, mi->patchfile); | |
843 | mi->patch_lines++; | |
844 | } | |
845 | ||
846 | static void handle_filter(struct mailinfo *mi, struct strbuf *line) | |
847 | { | |
848 | switch (mi->filter_stage) { | |
849 | case 0: | |
850 | if (!handle_commit_msg(mi, line)) | |
851 | break; | |
852 | mi->filter_stage++; | |
1cf01a34 | 853 | /* fallthrough */ |
c6905e45 JH |
854 | case 1: |
855 | handle_patch(mi, line); | |
856 | break; | |
857 | } | |
858 | } | |
859 | ||
860 | static int is_rfc2822_header(const struct strbuf *line) | |
861 | { | |
862 | /* | |
863 | * The section that defines the loosest possible | |
864 | * field name is "3.6.8 Optional fields". | |
865 | * | |
866 | * optional-field = field-name ":" unstructured CRLF | |
867 | * field-name = 1*ftext | |
868 | * ftext = %d33-57 / %59-126 | |
869 | */ | |
870 | int ch; | |
871 | char *cp = line->buf; | |
872 | ||
873 | /* Count mbox From headers as headers */ | |
874 | if (starts_with(cp, "From ") || starts_with(cp, ">From ")) | |
875 | return 1; | |
876 | ||
877 | while ((ch = *cp++)) { | |
878 | if (ch == ':') | |
879 | return 1; | |
880 | if ((33 <= ch && ch <= 57) || | |
881 | (59 <= ch && ch <= 126)) | |
882 | continue; | |
883 | break; | |
884 | } | |
885 | return 0; | |
886 | } | |
887 | ||
888 | static int read_one_header_line(struct strbuf *line, FILE *in) | |
889 | { | |
890 | struct strbuf continuation = STRBUF_INIT; | |
891 | ||
892 | /* Get the first part of the line. */ | |
8f309aeb | 893 | if (strbuf_getline_lf(line, in)) |
c6905e45 JH |
894 | return 0; |
895 | ||
896 | /* | |
897 | * Is it an empty line or not a valid rfc2822 header? | |
898 | * If so, stop here, and return false ("not a header") | |
899 | */ | |
900 | strbuf_rtrim(line); | |
901 | if (!line->len || !is_rfc2822_header(line)) { | |
902 | /* Re-add the newline */ | |
903 | strbuf_addch(line, '\n'); | |
904 | return 0; | |
905 | } | |
906 | ||
907 | /* | |
908 | * Now we need to eat all the continuation lines.. | |
909 | * Yuck, 2822 header "folding" | |
910 | */ | |
911 | for (;;) { | |
912 | int peek; | |
913 | ||
f0733c13 JS |
914 | peek = fgetc(in); |
915 | if (peek == EOF) | |
916 | break; | |
917 | ungetc(peek, in); | |
c6905e45 JH |
918 | if (peek != ' ' && peek != '\t') |
919 | break; | |
8f309aeb | 920 | if (strbuf_getline_lf(&continuation, in)) |
c6905e45 JH |
921 | break; |
922 | continuation.buf[0] = ' '; | |
923 | strbuf_rtrim(&continuation); | |
924 | strbuf_addbuf(line, &continuation); | |
925 | } | |
926 | strbuf_release(&continuation); | |
927 | ||
928 | return 1; | |
929 | } | |
930 | ||
931 | static int find_boundary(struct mailinfo *mi, struct strbuf *line) | |
932 | { | |
8f309aeb | 933 | while (!strbuf_getline_lf(line, mi->input)) { |
c6905e45 JH |
934 | if (*(mi->content_top) && is_multipart_boundary(mi, line)) |
935 | return 1; | |
936 | } | |
937 | return 0; | |
938 | } | |
939 | ||
940 | static int handle_boundary(struct mailinfo *mi, struct strbuf *line) | |
941 | { | |
942 | struct strbuf newline = STRBUF_INIT; | |
943 | ||
944 | strbuf_addch(&newline, '\n'); | |
945 | again: | |
946 | if (line->len >= (*(mi->content_top))->len + 2 && | |
947 | !memcmp(line->buf + (*(mi->content_top))->len, "--", 2)) { | |
948 | /* we hit an end boundary */ | |
949 | /* pop the current boundary off the stack */ | |
950 | strbuf_release(*(mi->content_top)); | |
6a83d902 | 951 | FREE_AND_NULL(*(mi->content_top)); |
c6905e45 JH |
952 | |
953 | /* technically won't happen as is_multipart_boundary() | |
954 | will fail first. But just in case.. | |
955 | */ | |
956 | if (--mi->content_top < mi->content) { | |
6ac617a3 JH |
957 | error("Detected mismatched boundaries, can't recover"); |
958 | mi->input_error = -1; | |
959 | mi->content_top = mi->content; | |
400cd6bf | 960 | strbuf_release(&newline); |
6ac617a3 | 961 | return 0; |
c6905e45 JH |
962 | } |
963 | handle_filter(mi, &newline); | |
964 | strbuf_release(&newline); | |
6ac617a3 JH |
965 | if (mi->input_error) |
966 | return 0; | |
c6905e45 JH |
967 | |
968 | /* skip to the next boundary */ | |
969 | if (!find_boundary(mi, line)) | |
970 | return 0; | |
971 | goto again; | |
972 | } | |
973 | ||
974 | /* set some defaults */ | |
975 | mi->transfer_encoding = TE_DONTCARE; | |
976 | strbuf_reset(&mi->charset); | |
977 | ||
978 | /* slurp in this section's info */ | |
979 | while (read_one_header_line(line, mi->input)) | |
980 | check_header(mi, line, mi->p_hdr_data, 0); | |
981 | ||
982 | strbuf_release(&newline); | |
983 | /* replenish line */ | |
8f309aeb | 984 | if (strbuf_getline_lf(line, mi->input)) |
c6905e45 JH |
985 | return 0; |
986 | strbuf_addch(line, '\n'); | |
987 | return 1; | |
988 | } | |
989 | ||
3aa4d81f RS |
990 | static void handle_filter_flowed(struct mailinfo *mi, struct strbuf *line, |
991 | struct strbuf *prev) | |
992 | { | |
993 | size_t len = line->len; | |
994 | const char *rest; | |
995 | ||
996 | if (!mi->format_flowed) { | |
0b689562 ĐTCD |
997 | if (len >= 2 && |
998 | line->buf[len - 2] == '\r' && | |
999 | line->buf[len - 1] == '\n') { | |
1000 | mi->have_quoted_cr = 1; | |
133a4fda ĐTCD |
1001 | if (mi->quoted_cr == quoted_cr_strip) { |
1002 | strbuf_setlen(line, len - 2); | |
1003 | strbuf_addch(line, '\n'); | |
1004 | len--; | |
1005 | } | |
0b689562 | 1006 | } |
3aa4d81f RS |
1007 | handle_filter(mi, line); |
1008 | return; | |
1009 | } | |
1010 | ||
1011 | if (line->buf[len - 1] == '\n') { | |
1012 | len--; | |
1013 | if (len && line->buf[len - 1] == '\r') | |
1014 | len--; | |
1015 | } | |
1016 | ||
1017 | /* Keep signature separator as-is. */ | |
1018 | if (skip_prefix(line->buf, "-- ", &rest) && rest - line->buf == len) { | |
1019 | if (prev->len) { | |
1020 | handle_filter(mi, prev); | |
1021 | strbuf_reset(prev); | |
1022 | } | |
1023 | handle_filter(mi, line); | |
1024 | return; | |
1025 | } | |
1026 | ||
1027 | /* Unstuff space-stuffed line. */ | |
1028 | if (len && line->buf[0] == ' ') { | |
1029 | strbuf_remove(line, 0, 1); | |
1030 | len--; | |
1031 | } | |
1032 | ||
1033 | /* Save flowed line for later, but without the soft line break. */ | |
1034 | if (len && line->buf[len - 1] == ' ') { | |
1035 | strbuf_add(prev, line->buf, len - !!mi->delsp); | |
1036 | return; | |
1037 | } | |
1038 | ||
1039 | /* Prepend any previous partial lines */ | |
1040 | strbuf_insert(line, 0, prev->buf, prev->len); | |
1041 | strbuf_reset(prev); | |
1042 | ||
1043 | handle_filter(mi, line); | |
1044 | } | |
1045 | ||
0b689562 ĐTCD |
1046 | static void summarize_quoted_cr(struct mailinfo *mi) |
1047 | { | |
f1aa2994 ĐTCD |
1048 | if (mi->have_quoted_cr && |
1049 | mi->quoted_cr == quoted_cr_warn) | |
0b689562 ĐTCD |
1050 | warning(_("quoted CRLF detected")); |
1051 | } | |
1052 | ||
c6905e45 JH |
1053 | static void handle_body(struct mailinfo *mi, struct strbuf *line) |
1054 | { | |
1055 | struct strbuf prev = STRBUF_INIT; | |
1056 | ||
1057 | /* Skip up to the first boundary */ | |
1058 | if (*(mi->content_top)) { | |
1059 | if (!find_boundary(mi, line)) | |
1060 | goto handle_body_out; | |
1061 | } | |
1062 | ||
1063 | do { | |
1064 | /* process any boundary lines */ | |
1065 | if (*(mi->content_top) && is_multipart_boundary(mi, line)) { | |
1066 | /* flush any leftover */ | |
1067 | if (prev.len) { | |
1068 | handle_filter(mi, &prev); | |
1069 | strbuf_reset(&prev); | |
1070 | } | |
0b689562 ĐTCD |
1071 | summarize_quoted_cr(mi); |
1072 | mi->have_quoted_cr = 0; | |
c6905e45 JH |
1073 | if (!handle_boundary(mi, line)) |
1074 | goto handle_body_out; | |
1075 | } | |
1076 | ||
1077 | /* Unwrap transfer encoding */ | |
1078 | decode_transfer_encoding(mi, line); | |
1079 | ||
1080 | switch (mi->transfer_encoding) { | |
1081 | case TE_BASE64: | |
1082 | case TE_QP: | |
1083 | { | |
1084 | struct strbuf **lines, **it, *sb; | |
1085 | ||
1086 | /* Prepend any previous partial lines */ | |
1087 | strbuf_insert(line, 0, prev.buf, prev.len); | |
1088 | strbuf_reset(&prev); | |
1089 | ||
1090 | /* | |
1091 | * This is a decoded line that may contain | |
1092 | * multiple new lines. Pass only one chunk | |
1093 | * at a time to handle_filter() | |
1094 | */ | |
1095 | lines = strbuf_split(line, '\n'); | |
1096 | for (it = lines; (sb = *it); it++) { | |
1097 | if (*(it + 1) == NULL) /* The last line */ | |
1098 | if (sb->buf[sb->len - 1] != '\n') { | |
1099 | /* Partial line, save it for later. */ | |
1100 | strbuf_addbuf(&prev, sb); | |
1101 | break; | |
1102 | } | |
3aa4d81f | 1103 | handle_filter_flowed(mi, sb, &prev); |
c6905e45 JH |
1104 | } |
1105 | /* | |
1106 | * The partial chunk is saved in "prev" and will be | |
1107 | * appended by the next iteration of read_line_with_nul(). | |
1108 | */ | |
1109 | strbuf_list_free(lines); | |
1110 | break; | |
1111 | } | |
1112 | default: | |
3aa4d81f | 1113 | handle_filter_flowed(mi, line, &prev); |
c6905e45 JH |
1114 | } |
1115 | ||
6ac617a3 JH |
1116 | if (mi->input_error) |
1117 | break; | |
c6905e45 JH |
1118 | } while (!strbuf_getwholeline(line, mi->input, '\n')); |
1119 | ||
3aa4d81f RS |
1120 | if (prev.len) |
1121 | handle_filter(mi, &prev); | |
0b689562 | 1122 | summarize_quoted_cr(mi); |
3aa4d81f | 1123 | |
6b4b013f JT |
1124 | flush_inbody_header_accum(mi); |
1125 | ||
c6905e45 JH |
1126 | handle_body_out: |
1127 | strbuf_release(&prev); | |
1128 | } | |
1129 | ||
1130 | static void output_header_lines(FILE *fout, const char *hdr, const struct strbuf *data) | |
1131 | { | |
1132 | const char *sp = data->buf; | |
1133 | while (1) { | |
1134 | char *ep = strchr(sp, '\n'); | |
1135 | int len; | |
1136 | if (!ep) | |
1137 | len = strlen(sp); | |
1138 | else | |
1139 | len = ep - sp; | |
1140 | fprintf(fout, "%s: %.*s\n", hdr, len, sp); | |
1141 | if (!ep) | |
1142 | break; | |
1143 | sp = ep + 1; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | static void handle_info(struct mailinfo *mi) | |
1148 | { | |
1149 | struct strbuf *hdr; | |
1150 | int i; | |
1151 | ||
1152 | for (i = 0; header[i]; i++) { | |
1153 | /* only print inbody headers if we output a patch file */ | |
1154 | if (mi->patch_lines && mi->s_hdr_data[i]) | |
1155 | hdr = mi->s_hdr_data[i]; | |
1156 | else if (mi->p_hdr_data[i]) | |
1157 | hdr = mi->p_hdr_data[i]; | |
1158 | else | |
1159 | continue; | |
1160 | ||
39199974 ĐTCD |
1161 | if (memchr(hdr->buf, '\0', hdr->len)) { |
1162 | error("a NUL byte in '%s' is not allowed.", header[i]); | |
1163 | mi->input_error = -1; | |
1164 | } | |
1165 | ||
c6905e45 JH |
1166 | if (!strcmp(header[i], "Subject")) { |
1167 | if (!mi->keep_subject) { | |
1168 | cleanup_subject(mi, hdr); | |
1169 | cleanup_space(hdr); | |
1170 | } | |
1171 | output_header_lines(mi->output, "Subject", hdr); | |
1172 | } else if (!strcmp(header[i], "From")) { | |
1173 | cleanup_space(hdr); | |
1174 | handle_from(mi, hdr); | |
1175 | fprintf(mi->output, "Author: %s\n", mi->name.buf); | |
1176 | fprintf(mi->output, "Email: %s\n", mi->email.buf); | |
1177 | } else { | |
1178 | cleanup_space(hdr); | |
1179 | fprintf(mi->output, "%s: %s\n", header[i], hdr->buf); | |
1180 | } | |
1181 | } | |
1182 | fprintf(mi->output, "\n"); | |
1183 | } | |
1184 | ||
1185 | int mailinfo(struct mailinfo *mi, const char *msg, const char *patch) | |
1186 | { | |
1187 | FILE *cmitmsg; | |
1188 | int peek; | |
1189 | struct strbuf line = STRBUF_INIT; | |
1190 | ||
1191 | cmitmsg = fopen(msg, "w"); | |
1192 | if (!cmitmsg) { | |
1193 | perror(msg); | |
1194 | return -1; | |
1195 | } | |
1196 | mi->patchfile = fopen(patch, "w"); | |
1197 | if (!mi->patchfile) { | |
1198 | perror(patch); | |
1199 | fclose(cmitmsg); | |
1200 | return -1; | |
1201 | } | |
1202 | ||
1203 | mi->p_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*(mi->p_hdr_data))); | |
1204 | mi->s_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*(mi->s_hdr_data))); | |
1205 | ||
1206 | do { | |
1207 | peek = fgetc(mi->input); | |
f0733c13 JS |
1208 | if (peek == EOF) { |
1209 | fclose(cmitmsg); | |
1210 | return error("empty patch: '%s'", patch); | |
1211 | } | |
c6905e45 JH |
1212 | } while (isspace(peek)); |
1213 | ungetc(peek, mi->input); | |
1214 | ||
1215 | /* process the email header */ | |
1216 | while (read_one_header_line(&line, mi->input)) | |
1217 | check_header(mi, &line, mi->p_hdr_data, 1); | |
1218 | ||
1219 | handle_body(mi, &line); | |
1220 | fwrite(mi->log_message.buf, 1, mi->log_message.len, cmitmsg); | |
1221 | fclose(cmitmsg); | |
1222 | fclose(mi->patchfile); | |
1223 | ||
1224 | handle_info(mi); | |
1225 | strbuf_release(&line); | |
6ac617a3 | 1226 | return mi->input_error; |
c6905e45 JH |
1227 | } |
1228 | ||
f1aa2994 ĐTCD |
1229 | int mailinfo_parse_quoted_cr_action(const char *actionstr, int *action) |
1230 | { | |
1231 | if (!strcmp(actionstr, "nowarn")) | |
1232 | *action = quoted_cr_nowarn; | |
1233 | else if (!strcmp(actionstr, "warn")) | |
1234 | *action = quoted_cr_warn; | |
133a4fda ĐTCD |
1235 | else if (!strcmp(actionstr, "strip")) |
1236 | *action = quoted_cr_strip; | |
f1aa2994 ĐTCD |
1237 | else |
1238 | return -1; | |
1239 | return 0; | |
1240 | } | |
1241 | ||
c6905e45 JH |
1242 | static int git_mailinfo_config(const char *var, const char *value, void *mi_) |
1243 | { | |
1244 | struct mailinfo *mi = mi_; | |
1245 | ||
1246 | if (!starts_with(var, "mailinfo.")) | |
1247 | return git_default_config(var, value, NULL); | |
1248 | if (!strcmp(var, "mailinfo.scissors")) { | |
1249 | mi->use_scissors = git_config_bool(var, value); | |
1250 | return 0; | |
1251 | } | |
f1aa2994 ĐTCD |
1252 | if (!strcmp(var, "mailinfo.quotedcr")) { |
1253 | if (mailinfo_parse_quoted_cr_action(value, &mi->quoted_cr) != 0) | |
1254 | return error(_("bad action '%s' for '%s'"), value, var); | |
1255 | return 0; | |
1256 | } | |
c6905e45 JH |
1257 | /* perhaps others here */ |
1258 | return 0; | |
1259 | } | |
1260 | ||
1261 | void setup_mailinfo(struct mailinfo *mi) | |
1262 | { | |
1263 | memset(mi, 0, sizeof(*mi)); | |
1264 | strbuf_init(&mi->name, 0); | |
1265 | strbuf_init(&mi->email, 0); | |
1266 | strbuf_init(&mi->charset, 0); | |
1267 | strbuf_init(&mi->log_message, 0); | |
6b4b013f | 1268 | strbuf_init(&mi->inbody_header_accum, 0); |
f1aa2994 | 1269 | mi->quoted_cr = quoted_cr_warn; |
c6905e45 JH |
1270 | mi->header_stage = 1; |
1271 | mi->use_inbody_headers = 1; | |
1272 | mi->content_top = mi->content; | |
85d9d9dd | 1273 | git_config(git_mailinfo_config, mi); |
c6905e45 JH |
1274 | } |
1275 | ||
1276 | void clear_mailinfo(struct mailinfo *mi) | |
1277 | { | |
c6905e45 JH |
1278 | strbuf_release(&mi->name); |
1279 | strbuf_release(&mi->email); | |
1280 | strbuf_release(&mi->charset); | |
6b4b013f | 1281 | strbuf_release(&mi->inbody_header_accum); |
c6905e45 JH |
1282 | free(mi->message_id); |
1283 | ||
f3a96807 AH |
1284 | strbuf_list_free(mi->p_hdr_data); |
1285 | strbuf_list_free(mi->s_hdr_data); | |
c6905e45 JH |
1286 | |
1287 | while (mi->content < mi->content_top) { | |
1288 | free(*(mi->content_top)); | |
1289 | mi->content_top--; | |
1290 | } | |
1291 | ||
1292 | strbuf_release(&mi->log_message); | |
1293 | } |