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Commit | Line | Data |
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b73ecb48 | 1 | #include "git-compat-util.h" |
b2141fc1 | 2 | #include "config.h" |
b73ecb48 | 3 | #include "gettext.h" |
d88e8106 | 4 | #include "hex-ll.h" |
c6905e45 JH |
5 | #include "utf8.h" |
6 | #include "strbuf.h" | |
7 | #include "mailinfo.h" | |
8 | ||
9 | static void cleanup_space(struct strbuf *sb) | |
10 | { | |
11 | size_t pos, cnt; | |
12 | for (pos = 0; pos < sb->len; pos++) { | |
13 | if (isspace(sb->buf[pos])) { | |
14 | sb->buf[pos] = ' '; | |
15 | for (cnt = 0; isspace(sb->buf[pos + cnt + 1]); cnt++); | |
16 | strbuf_remove(sb, pos + 1, cnt); | |
17 | } | |
18 | } | |
19 | } | |
20 | ||
21 | static void get_sane_name(struct strbuf *out, struct strbuf *name, struct strbuf *email) | |
22 | { | |
23 | struct strbuf *src = name; | |
72ee47ce | 24 | if (!name->len || 60 < name->len || strpbrk(name->buf, "@<>")) |
c6905e45 JH |
25 | src = email; |
26 | else if (name == out) | |
27 | return; | |
28 | strbuf_reset(out); | |
29 | strbuf_addbuf(out, src); | |
30 | } | |
31 | ||
32 | static void parse_bogus_from(struct mailinfo *mi, const struct strbuf *line) | |
33 | { | |
34 | /* John Doe <johndoe> */ | |
35 | ||
36 | char *bra, *ket; | |
37 | /* This is fallback, so do not bother if we already have an | |
38 | * e-mail address. | |
39 | */ | |
40 | if (mi->email.len) | |
41 | return; | |
42 | ||
43 | bra = strchr(line->buf, '<'); | |
44 | if (!bra) | |
45 | return; | |
46 | ket = strchr(bra, '>'); | |
47 | if (!ket) | |
48 | return; | |
49 | ||
50 | strbuf_reset(&mi->email); | |
51 | strbuf_add(&mi->email, bra + 1, ket - bra - 1); | |
52 | ||
53 | strbuf_reset(&mi->name); | |
54 | strbuf_add(&mi->name, line->buf, bra - line->buf); | |
55 | strbuf_trim(&mi->name); | |
56 | get_sane_name(&mi->name, &mi->name, &mi->email); | |
57 | } | |
58 | ||
f357e5de KD |
59 | static const char *unquote_comment(struct strbuf *outbuf, const char *in) |
60 | { | |
61 | int c; | |
64127575 | 62 | int take_next_literally = 0; |
f357e5de KD |
63 | |
64 | strbuf_addch(outbuf, '('); | |
65 | ||
66 | while ((c = *in++) != 0) { | |
64127575 VS |
67 | if (take_next_literally == 1) { |
68 | take_next_literally = 0; | |
f357e5de KD |
69 | } else { |
70 | switch (c) { | |
71 | case '\\': | |
64127575 | 72 | take_next_literally = 1; |
f357e5de KD |
73 | continue; |
74 | case '(': | |
75 | in = unquote_comment(outbuf, in); | |
76 | continue; | |
77 | case ')': | |
78 | strbuf_addch(outbuf, ')'); | |
79 | return in; | |
80 | } | |
81 | } | |
82 | ||
83 | strbuf_addch(outbuf, c); | |
84 | } | |
85 | ||
86 | return in; | |
87 | } | |
88 | ||
89 | static const char *unquote_quoted_string(struct strbuf *outbuf, const char *in) | |
90 | { | |
91 | int c; | |
64127575 | 92 | int take_next_literally = 0; |
f357e5de KD |
93 | |
94 | while ((c = *in++) != 0) { | |
64127575 VS |
95 | if (take_next_literally == 1) { |
96 | take_next_literally = 0; | |
f357e5de KD |
97 | } else { |
98 | switch (c) { | |
99 | case '\\': | |
64127575 | 100 | take_next_literally = 1; |
f357e5de KD |
101 | continue; |
102 | case '"': | |
103 | return in; | |
104 | } | |
105 | } | |
106 | ||
107 | strbuf_addch(outbuf, c); | |
108 | } | |
109 | ||
110 | return in; | |
111 | } | |
112 | ||
113 | static void unquote_quoted_pair(struct strbuf *line) | |
114 | { | |
115 | struct strbuf outbuf; | |
116 | const char *in = line->buf; | |
117 | int c; | |
118 | ||
119 | strbuf_init(&outbuf, line->len); | |
120 | ||
121 | while ((c = *in++) != 0) { | |
122 | switch (c) { | |
123 | case '"': | |
124 | in = unquote_quoted_string(&outbuf, in); | |
125 | continue; | |
126 | case '(': | |
127 | in = unquote_comment(&outbuf, in); | |
128 | continue; | |
129 | } | |
130 | ||
131 | strbuf_addch(&outbuf, c); | |
132 | } | |
133 | ||
134 | strbuf_swap(&outbuf, line); | |
135 | strbuf_release(&outbuf); | |
136 | ||
137 | } | |
138 | ||
c6905e45 JH |
139 | static void handle_from(struct mailinfo *mi, const struct strbuf *from) |
140 | { | |
141 | char *at; | |
142 | size_t el; | |
143 | struct strbuf f; | |
144 | ||
145 | strbuf_init(&f, from->len); | |
146 | strbuf_addbuf(&f, from); | |
147 | ||
f357e5de KD |
148 | unquote_quoted_pair(&f); |
149 | ||
c6905e45 JH |
150 | at = strchr(f.buf, '@'); |
151 | if (!at) { | |
152 | parse_bogus_from(mi, from); | |
11fa5e2a | 153 | goto out; |
c6905e45 JH |
154 | } |
155 | ||
156 | /* | |
157 | * If we already have one email, don't take any confusing lines | |
158 | */ | |
11fa5e2a RS |
159 | if (mi->email.len && strchr(at + 1, '@')) |
160 | goto out; | |
c6905e45 JH |
161 | |
162 | /* Pick up the string around '@', possibly delimited with <> | |
163 | * pair; that is the email part. | |
164 | */ | |
165 | while (at > f.buf) { | |
166 | char c = at[-1]; | |
167 | if (isspace(c)) | |
168 | break; | |
169 | if (c == '<') { | |
170 | at[-1] = ' '; | |
171 | break; | |
172 | } | |
173 | at--; | |
174 | } | |
175 | el = strcspn(at, " \n\t\r\v\f>"); | |
176 | strbuf_reset(&mi->email); | |
177 | strbuf_add(&mi->email, at, el); | |
178 | strbuf_remove(&f, at - f.buf, el + (at[el] ? 1 : 0)); | |
179 | ||
180 | /* The remainder is name. It could be | |
181 | * | |
182 | * - "John Doe <john.doe@xz>" (a), or | |
183 | * - "john.doe@xz (John Doe)" (b), or | |
184 | * - "John (zzz) Doe <john.doe@xz> (Comment)" (c) | |
185 | * | |
186 | * but we have removed the email part, so | |
187 | * | |
188 | * - remove extra spaces which could stay after email (case 'c'), and | |
189 | * - trim from both ends, possibly removing the () pair at the end | |
190 | * (cases 'a' and 'b'). | |
191 | */ | |
192 | cleanup_space(&f); | |
193 | strbuf_trim(&f); | |
194 | if (f.buf[0] == '(' && f.len && f.buf[f.len - 1] == ')') { | |
195 | strbuf_remove(&f, 0, 1); | |
196 | strbuf_setlen(&f, f.len - 1); | |
197 | } | |
198 | ||
199 | get_sane_name(&mi->name, &f, &mi->email); | |
11fa5e2a | 200 | out: |
c6905e45 JH |
201 | strbuf_release(&f); |
202 | } | |
203 | ||
204 | static void handle_header(struct strbuf **out, const struct strbuf *line) | |
205 | { | |
206 | if (!*out) { | |
207 | *out = xmalloc(sizeof(struct strbuf)); | |
208 | strbuf_init(*out, line->len); | |
209 | } else | |
210 | strbuf_reset(*out); | |
211 | ||
212 | strbuf_addbuf(*out, line); | |
213 | } | |
214 | ||
215 | /* NOTE NOTE NOTE. We do not claim we do full MIME. We just attempt | |
216 | * to have enough heuristics to grok MIME encoded patches often found | |
217 | * on our mailing lists. For example, we do not even treat header lines | |
218 | * case insensitively. | |
219 | */ | |
220 | ||
221 | static int slurp_attr(const char *line, const char *name, struct strbuf *attr) | |
222 | { | |
223 | const char *ends, *ap = strcasestr(line, name); | |
224 | size_t sz; | |
225 | ||
226 | strbuf_setlen(attr, 0); | |
227 | if (!ap) | |
228 | return 0; | |
229 | ap += strlen(name); | |
230 | if (*ap == '"') { | |
231 | ap++; | |
232 | ends = "\""; | |
233 | } | |
234 | else | |
235 | ends = "; \t"; | |
236 | sz = strcspn(ap, ends); | |
237 | strbuf_add(attr, ap, sz); | |
238 | return 1; | |
239 | } | |
240 | ||
3aa4d81f RS |
241 | static int has_attr_value(const char *line, const char *name, const char *value) |
242 | { | |
243 | struct strbuf sb = STRBUF_INIT; | |
244 | int rc = slurp_attr(line, name, &sb) && !strcasecmp(sb.buf, value); | |
245 | strbuf_release(&sb); | |
246 | return rc; | |
247 | } | |
248 | ||
c6905e45 JH |
249 | static void handle_content_type(struct mailinfo *mi, struct strbuf *line) |
250 | { | |
251 | struct strbuf *boundary = xmalloc(sizeof(struct strbuf)); | |
252 | strbuf_init(boundary, line->len); | |
253 | ||
3aa4d81f RS |
254 | mi->format_flowed = has_attr_value(line->buf, "format=", "flowed"); |
255 | mi->delsp = has_attr_value(line->buf, "delsp=", "yes"); | |
256 | ||
c6905e45 | 257 | if (slurp_attr(line->buf, "boundary=", boundary)) { |
a91cc7fa | 258 | strbuf_insertstr(boundary, 0, "--"); |
c6905e45 | 259 | if (++mi->content_top >= &mi->content[MAX_BOUNDARIES]) { |
6ac617a3 JH |
260 | error("Too many boundaries to handle"); |
261 | mi->input_error = -1; | |
262 | mi->content_top = &mi->content[MAX_BOUNDARIES] - 1; | |
263 | return; | |
c6905e45 JH |
264 | } |
265 | *(mi->content_top) = boundary; | |
266 | boundary = NULL; | |
267 | } | |
268 | slurp_attr(line->buf, "charset=", &mi->charset); | |
269 | ||
270 | if (boundary) { | |
271 | strbuf_release(boundary); | |
272 | free(boundary); | |
273 | } | |
274 | } | |
275 | ||
c6905e45 JH |
276 | static void handle_content_transfer_encoding(struct mailinfo *mi, |
277 | const struct strbuf *line) | |
278 | { | |
279 | if (strcasestr(line->buf, "base64")) | |
280 | mi->transfer_encoding = TE_BASE64; | |
281 | else if (strcasestr(line->buf, "quoted-printable")) | |
282 | mi->transfer_encoding = TE_QP; | |
283 | else | |
284 | mi->transfer_encoding = TE_DONTCARE; | |
285 | } | |
286 | ||
287 | static int is_multipart_boundary(struct mailinfo *mi, const struct strbuf *line) | |
288 | { | |
289 | struct strbuf *content_top = *(mi->content_top); | |
290 | ||
291 | return ((content_top->len <= line->len) && | |
292 | !memcmp(line->buf, content_top->buf, content_top->len)); | |
293 | } | |
294 | ||
295 | static void cleanup_subject(struct mailinfo *mi, struct strbuf *subject) | |
296 | { | |
297 | size_t at = 0; | |
298 | ||
299 | while (at < subject->len) { | |
300 | char *pos; | |
301 | size_t remove; | |
302 | ||
303 | switch (subject->buf[at]) { | |
304 | case 'r': case 'R': | |
305 | if (subject->len <= at + 3) | |
306 | break; | |
307 | if ((subject->buf[at + 1] == 'e' || | |
308 | subject->buf[at + 1] == 'E') && | |
309 | subject->buf[at + 2] == ':') { | |
310 | strbuf_remove(subject, at, 3); | |
311 | continue; | |
312 | } | |
313 | at++; | |
314 | break; | |
315 | case ' ': case '\t': case ':': | |
316 | strbuf_remove(subject, at, 1); | |
317 | continue; | |
318 | case '[': | |
319 | pos = strchr(subject->buf + at, ']'); | |
320 | if (!pos) | |
321 | break; | |
3ef14946 | 322 | remove = pos - (subject->buf + at) + 1; |
c6905e45 JH |
323 | if (!mi->keep_non_patch_brackets_in_subject || |
324 | (7 <= remove && | |
325 | memmem(subject->buf + at, remove, "PATCH", 5))) | |
326 | strbuf_remove(subject, at, remove); | |
327 | else { | |
328 | at += remove; | |
329 | /* | |
330 | * If the input had a space after the ], keep | |
331 | * it. We don't bother with finding the end of | |
332 | * the space, since we later normalize it | |
333 | * anyway. | |
334 | */ | |
335 | if (isspace(subject->buf[at])) | |
336 | at += 1; | |
337 | } | |
338 | continue; | |
339 | } | |
340 | break; | |
341 | } | |
342 | strbuf_trim(subject); | |
343 | } | |
344 | ||
345 | #define MAX_HDR_PARSED 10 | |
346 | static const char *header[MAX_HDR_PARSED] = { | |
347 | "From","Subject","Date", | |
348 | }; | |
349 | ||
f447d029 JK |
350 | static inline int skip_header(const struct strbuf *line, const char *hdr, |
351 | const char **outval) | |
c6905e45 | 352 | { |
f447d029 JK |
353 | const char *val; |
354 | if (!skip_iprefix(line->buf, hdr, &val) || | |
ffbea181 | 355 | *val++ != ':') |
f447d029 | 356 | return 0; |
ffbea181 JK |
357 | while (isspace(*val)) |
358 | val++; | |
f447d029 JK |
359 | *outval = val; |
360 | return 1; | |
c6905e45 JH |
361 | } |
362 | ||
363 | static int is_format_patch_separator(const char *line, int len) | |
364 | { | |
365 | static const char SAMPLE[] = | |
366 | "From e6807f3efca28b30decfecb1732a56c7db1137ee Mon Sep 17 00:00:00 2001\n"; | |
367 | const char *cp; | |
368 | ||
369 | if (len != strlen(SAMPLE)) | |
370 | return 0; | |
371 | if (!skip_prefix(line, "From ", &cp)) | |
372 | return 0; | |
373 | if (strspn(cp, "0123456789abcdef") != 40) | |
374 | return 0; | |
375 | cp += 40; | |
376 | return !memcmp(SAMPLE + (cp - line), cp, strlen(SAMPLE) - (cp - line)); | |
377 | } | |
378 | ||
379 | static struct strbuf *decode_q_segment(const struct strbuf *q_seg, int rfc2047) | |
380 | { | |
381 | const char *in = q_seg->buf; | |
382 | int c; | |
383 | struct strbuf *out = xmalloc(sizeof(struct strbuf)); | |
384 | strbuf_init(out, q_seg->len); | |
385 | ||
386 | while ((c = *in++) != 0) { | |
387 | if (c == '=') { | |
c8cf423e | 388 | int ch, d = *in; |
c6905e45 JH |
389 | if (d == '\n' || !d) |
390 | break; /* drop trailing newline */ | |
c8cf423e RS |
391 | ch = hex2chr(in); |
392 | if (ch >= 0) { | |
393 | strbuf_addch(out, ch); | |
394 | in += 2; | |
395 | continue; | |
396 | } | |
397 | /* garbage -- fall through */ | |
c6905e45 JH |
398 | } |
399 | if (rfc2047 && c == '_') /* rfc2047 4.2 (2) */ | |
400 | c = 0x20; | |
401 | strbuf_addch(out, c); | |
402 | } | |
403 | return out; | |
404 | } | |
405 | ||
406 | static struct strbuf *decode_b_segment(const struct strbuf *b_seg) | |
407 | { | |
408 | /* Decode in..ep, possibly in-place to ot */ | |
409 | int c, pos = 0, acc = 0; | |
410 | const char *in = b_seg->buf; | |
411 | struct strbuf *out = xmalloc(sizeof(struct strbuf)); | |
412 | strbuf_init(out, b_seg->len); | |
413 | ||
414 | while ((c = *in++) != 0) { | |
415 | if (c == '+') | |
416 | c = 62; | |
417 | else if (c == '/') | |
418 | c = 63; | |
419 | else if ('A' <= c && c <= 'Z') | |
420 | c -= 'A'; | |
421 | else if ('a' <= c && c <= 'z') | |
422 | c -= 'a' - 26; | |
423 | else if ('0' <= c && c <= '9') | |
424 | c -= '0' - 52; | |
425 | else | |
426 | continue; /* garbage */ | |
427 | switch (pos++) { | |
428 | case 0: | |
429 | acc = (c << 2); | |
430 | break; | |
431 | case 1: | |
432 | strbuf_addch(out, (acc | (c >> 4))); | |
433 | acc = (c & 15) << 4; | |
434 | break; | |
435 | case 2: | |
436 | strbuf_addch(out, (acc | (c >> 2))); | |
437 | acc = (c & 3) << 6; | |
438 | break; | |
439 | case 3: | |
440 | strbuf_addch(out, (acc | c)); | |
441 | acc = pos = 0; | |
442 | break; | |
443 | } | |
444 | } | |
445 | return out; | |
446 | } | |
447 | ||
669b963a JH |
448 | static int convert_to_utf8(struct mailinfo *mi, |
449 | struct strbuf *line, const char *charset) | |
c6905e45 JH |
450 | { |
451 | char *out; | |
2a2ff603 | 452 | size_t out_len; |
c6905e45 JH |
453 | |
454 | if (!mi->metainfo_charset || !charset || !*charset) | |
669b963a | 455 | return 0; |
c6905e45 JH |
456 | |
457 | if (same_encoding(mi->metainfo_charset, charset)) | |
669b963a | 458 | return 0; |
2a2ff603 ĐTCD |
459 | out = reencode_string_len(line->buf, line->len, |
460 | mi->metainfo_charset, charset, &out_len); | |
6ac617a3 JH |
461 | if (!out) { |
462 | mi->input_error = -1; | |
669b963a JH |
463 | return error("cannot convert from %s to %s", |
464 | charset, mi->metainfo_charset); | |
6ac617a3 | 465 | } |
2a2ff603 | 466 | strbuf_attach(line, out, out_len, out_len); |
669b963a | 467 | return 0; |
c6905e45 JH |
468 | } |
469 | ||
470 | static void decode_header(struct mailinfo *mi, struct strbuf *it) | |
471 | { | |
472 | char *in, *ep, *cp; | |
473 | struct strbuf outbuf = STRBUF_INIT, *dec; | |
474 | struct strbuf charset_q = STRBUF_INIT, piecebuf = STRBUF_INIT; | |
6ac617a3 | 475 | int found_error = 1; /* pessimism */ |
c6905e45 JH |
476 | |
477 | in = it->buf; | |
478 | while (in - it->buf <= it->len && (ep = strstr(in, "=?")) != NULL) { | |
479 | int encoding; | |
480 | strbuf_reset(&charset_q); | |
481 | strbuf_reset(&piecebuf); | |
482 | ||
483 | if (in != ep) { | |
484 | /* | |
485 | * We are about to process an encoded-word | |
486 | * that begins at ep, but there is something | |
487 | * before the encoded word. | |
488 | */ | |
489 | char *scan; | |
490 | for (scan = in; scan < ep; scan++) | |
491 | if (!isspace(*scan)) | |
492 | break; | |
493 | ||
494 | if (scan != ep || in == it->buf) { | |
495 | /* | |
496 | * We should not lose that "something", | |
497 | * unless we have just processed an | |
498 | * encoded-word, and there is only LWS | |
499 | * before the one we are about to process. | |
500 | */ | |
501 | strbuf_add(&outbuf, in, ep - in); | |
502 | } | |
503 | } | |
504 | /* E.g. | |
505 | * ep : "=?iso-2022-jp?B?GyR...?= foo" | |
506 | * ep : "=?ISO-8859-1?Q?Foo=FCbar?= baz" | |
507 | */ | |
508 | ep += 2; | |
509 | ||
510 | if (ep - it->buf >= it->len || !(cp = strchr(ep, '?'))) | |
511 | goto release_return; | |
512 | ||
513 | if (cp + 3 - it->buf > it->len) | |
514 | goto release_return; | |
515 | strbuf_add(&charset_q, ep, cp - ep); | |
516 | ||
517 | encoding = cp[1]; | |
518 | if (!encoding || cp[2] != '?') | |
519 | goto release_return; | |
520 | ep = strstr(cp + 3, "?="); | |
521 | if (!ep) | |
522 | goto release_return; | |
523 | strbuf_add(&piecebuf, cp + 3, ep - cp - 3); | |
524 | switch (tolower(encoding)) { | |
525 | default: | |
526 | goto release_return; | |
527 | case 'b': | |
528 | dec = decode_b_segment(&piecebuf); | |
529 | break; | |
530 | case 'q': | |
531 | dec = decode_q_segment(&piecebuf, 1); | |
532 | break; | |
533 | } | |
669b963a JH |
534 | if (convert_to_utf8(mi, dec, charset_q.buf)) |
535 | goto release_return; | |
c6905e45 JH |
536 | |
537 | strbuf_addbuf(&outbuf, dec); | |
538 | strbuf_release(dec); | |
539 | free(dec); | |
540 | in = ep + 2; | |
541 | } | |
542 | strbuf_addstr(&outbuf, in); | |
543 | strbuf_reset(it); | |
544 | strbuf_addbuf(it, &outbuf); | |
6ac617a3 | 545 | found_error = 0; |
c6905e45 JH |
546 | release_return: |
547 | strbuf_release(&outbuf); | |
548 | strbuf_release(&charset_q); | |
549 | strbuf_release(&piecebuf); | |
6ac617a3 JH |
550 | |
551 | if (found_error) | |
552 | mi->input_error = -1; | |
c6905e45 JH |
553 | } |
554 | ||
f696a2b1 JK |
555 | /* |
556 | * Returns true if "line" contains a header matching "hdr", in which case "val" | |
557 | * will contain the value of the header with any RFC2047 B and Q encoding | |
558 | * unwrapped, and optionally normalize the meta information to utf8. | |
559 | */ | |
560 | static int parse_header(const struct strbuf *line, | |
561 | const char *hdr, | |
562 | struct mailinfo *mi, | |
563 | struct strbuf *val) | |
564 | { | |
565 | const char *val_str; | |
566 | ||
567 | if (!skip_header(line, hdr, &val_str)) | |
568 | return 0; | |
569 | strbuf_addstr(val, val_str); | |
570 | decode_header(mi, val); | |
571 | return 1; | |
572 | } | |
573 | ||
c6905e45 JH |
574 | static int check_header(struct mailinfo *mi, |
575 | const struct strbuf *line, | |
576 | struct strbuf *hdr_data[], int overwrite) | |
577 | { | |
f447d029 | 578 | int i, ret = 0; |
c6905e45 JH |
579 | struct strbuf sb = STRBUF_INIT; |
580 | ||
581 | /* search for the interesting parts */ | |
582 | for (i = 0; header[i]; i++) { | |
f447d029 | 583 | if ((!hdr_data[i] || overwrite) && |
f696a2b1 | 584 | parse_header(line, header[i], mi, &sb)) { |
c6905e45 JH |
585 | handle_header(&hdr_data[i], &sb); |
586 | ret = 1; | |
587 | goto check_header_out; | |
588 | } | |
589 | } | |
590 | ||
591 | /* Content stuff */ | |
f696a2b1 | 592 | if (parse_header(line, "Content-Type", mi, &sb)) { |
c6905e45 JH |
593 | handle_content_type(mi, &sb); |
594 | ret = 1; | |
595 | goto check_header_out; | |
596 | } | |
f696a2b1 | 597 | if (parse_header(line, "Content-Transfer-Encoding", mi, &sb)) { |
c6905e45 JH |
598 | handle_content_transfer_encoding(mi, &sb); |
599 | ret = 1; | |
600 | goto check_header_out; | |
601 | } | |
ba4324c4 | 602 | if (parse_header(line, "Message-ID", mi, &sb)) { |
ecf30b23 RS |
603 | if (mi->add_message_id) |
604 | mi->message_id = strbuf_detach(&sb, NULL); | |
c6905e45 JH |
605 | ret = 1; |
606 | goto check_header_out; | |
607 | } | |
608 | ||
c6905e45 JH |
609 | check_header_out: |
610 | strbuf_release(&sb); | |
611 | return ret; | |
612 | } | |
613 | ||
6b4b013f JT |
614 | /* |
615 | * Returns 1 if the given line or any line beginning with the given line is an | |
616 | * in-body header (that is, check_header will succeed when passed | |
617 | * mi->s_hdr_data). | |
618 | */ | |
619 | static int is_inbody_header(const struct mailinfo *mi, | |
620 | const struct strbuf *line) | |
621 | { | |
622 | int i; | |
f447d029 | 623 | const char *val; |
6b4b013f | 624 | for (i = 0; header[i]; i++) |
f447d029 | 625 | if (!mi->s_hdr_data[i] && skip_header(line, header[i], &val)) |
6b4b013f JT |
626 | return 1; |
627 | return 0; | |
628 | } | |
629 | ||
c6905e45 JH |
630 | static void decode_transfer_encoding(struct mailinfo *mi, struct strbuf *line) |
631 | { | |
632 | struct strbuf *ret; | |
633 | ||
634 | switch (mi->transfer_encoding) { | |
635 | case TE_QP: | |
636 | ret = decode_q_segment(line, 0); | |
637 | break; | |
638 | case TE_BASE64: | |
639 | ret = decode_b_segment(line); | |
640 | break; | |
641 | case TE_DONTCARE: | |
642 | default: | |
643 | return; | |
644 | } | |
645 | strbuf_reset(line); | |
646 | strbuf_addbuf(line, ret); | |
647 | strbuf_release(ret); | |
648 | free(ret); | |
649 | } | |
650 | ||
651 | static inline int patchbreak(const struct strbuf *line) | |
652 | { | |
653 | size_t i; | |
654 | ||
655 | /* Beginning of a "diff -" header? */ | |
656 | if (starts_with(line->buf, "diff -")) | |
657 | return 1; | |
658 | ||
659 | /* CVS "Index: " line? */ | |
660 | if (starts_with(line->buf, "Index: ")) | |
661 | return 1; | |
662 | ||
663 | /* | |
664 | * "--- <filename>" starts patches without headers | |
665 | * "---<sp>*" is a manual separator | |
666 | */ | |
667 | if (line->len < 4) | |
668 | return 0; | |
669 | ||
670 | if (starts_with(line->buf, "---")) { | |
671 | /* space followed by a filename? */ | |
672 | if (line->buf[3] == ' ' && !isspace(line->buf[4])) | |
673 | return 1; | |
674 | /* Just whitespace? */ | |
675 | for (i = 3; i < line->len; i++) { | |
676 | unsigned char c = line->buf[i]; | |
677 | if (c == '\n') | |
678 | return 1; | |
679 | if (!isspace(c)) | |
680 | break; | |
681 | } | |
682 | return 0; | |
683 | } | |
684 | return 0; | |
685 | } | |
686 | ||
9c5681da | 687 | static int is_scissors_line(const char *line) |
c6905e45 | 688 | { |
9c5681da | 689 | const char *c; |
c6905e45 | 690 | int scissors = 0, gap = 0; |
9c5681da JT |
691 | const char *first_nonblank = NULL, *last_nonblank = NULL; |
692 | int visible, perforation = 0, in_perforation = 0; | |
c6905e45 | 693 | |
9c5681da JT |
694 | for (c = line; *c; c++) { |
695 | if (isspace(*c)) { | |
c6905e45 JH |
696 | if (in_perforation) { |
697 | perforation++; | |
698 | gap++; | |
699 | } | |
700 | continue; | |
701 | } | |
9c5681da | 702 | last_nonblank = c; |
afe8a907 | 703 | if (!first_nonblank) |
9c5681da JT |
704 | first_nonblank = c; |
705 | if (*c == '-') { | |
c6905e45 JH |
706 | in_perforation = 1; |
707 | perforation++; | |
708 | continue; | |
709 | } | |
4184cbd6 AR |
710 | if (starts_with(c, ">8") || starts_with(c, "8<") || |
711 | starts_with(c, ">%") || starts_with(c, "%<")) { | |
c6905e45 JH |
712 | in_perforation = 1; |
713 | perforation += 2; | |
714 | scissors += 2; | |
9c5681da | 715 | c++; |
c6905e45 JH |
716 | continue; |
717 | } | |
718 | in_perforation = 0; | |
719 | } | |
720 | ||
721 | /* | |
722 | * The mark must be at least 8 bytes long (e.g. "-- >8 --"). | |
723 | * Even though there can be arbitrary cruft on the same line | |
724 | * (e.g. "cut here"), in order to avoid misidentification, the | |
725 | * perforation must occupy more than a third of the visible | |
726 | * width of the line, and dashes and scissors must occupy more | |
727 | * than half of the perforation. | |
728 | */ | |
729 | ||
9c5681da JT |
730 | if (first_nonblank && last_nonblank) |
731 | visible = last_nonblank - first_nonblank + 1; | |
732 | else | |
733 | visible = 0; | |
c6905e45 JH |
734 | return (scissors && 8 <= visible && |
735 | visible < perforation * 3 && | |
736 | gap * 2 < perforation); | |
737 | } | |
738 | ||
6b4b013f JT |
739 | static void flush_inbody_header_accum(struct mailinfo *mi) |
740 | { | |
741 | if (!mi->inbody_header_accum.len) | |
742 | return; | |
08414938 | 743 | if (!check_header(mi, &mi->inbody_header_accum, mi->s_hdr_data, 0)) |
033abf97 | 744 | BUG("inbody_header_accum, if not empty, must always contain a valid in-body header"); |
6b4b013f JT |
745 | strbuf_reset(&mi->inbody_header_accum); |
746 | } | |
747 | ||
334192b4 JT |
748 | static int check_inbody_header(struct mailinfo *mi, const struct strbuf *line) |
749 | { | |
6b4b013f JT |
750 | if (mi->inbody_header_accum.len && |
751 | (line->buf[0] == ' ' || line->buf[0] == '\t')) { | |
752 | if (mi->use_scissors && is_scissors_line(line->buf)) { | |
753 | /* | |
754 | * This is a scissors line; do not consider this line | |
755 | * as a header continuation line. | |
756 | */ | |
757 | flush_inbody_header_accum(mi); | |
758 | return 0; | |
759 | } | |
760 | strbuf_strip_suffix(&mi->inbody_header_accum, "\n"); | |
761 | strbuf_addbuf(&mi->inbody_header_accum, line); | |
762 | return 1; | |
763 | } | |
764 | ||
765 | flush_inbody_header_accum(mi); | |
766 | ||
334192b4 JT |
767 | if (starts_with(line->buf, ">From") && isspace(line->buf[5])) |
768 | return is_format_patch_separator(line->buf + 1, line->len - 1); | |
769 | if (starts_with(line->buf, "[PATCH]") && isspace(line->buf[7])) { | |
770 | int i; | |
771 | for (i = 0; header[i]; i++) | |
772 | if (!strcmp("Subject", header[i])) { | |
773 | handle_header(&mi->s_hdr_data[i], line); | |
774 | return 1; | |
775 | } | |
776 | return 0; | |
777 | } | |
6b4b013f JT |
778 | if (is_inbody_header(mi, line)) { |
779 | strbuf_addbuf(&mi->inbody_header_accum, line); | |
780 | return 1; | |
781 | } | |
782 | return 0; | |
334192b4 JT |
783 | } |
784 | ||
c6905e45 JH |
785 | static int handle_commit_msg(struct mailinfo *mi, struct strbuf *line) |
786 | { | |
787 | assert(!mi->filter_stage); | |
788 | ||
789 | if (mi->header_stage) { | |
fd1062e5 LT |
790 | if (!line->len || (line->len == 1 && line->buf[0] == '\n')) { |
791 | if (mi->inbody_header_accum.len) { | |
792 | flush_inbody_header_accum(mi); | |
793 | mi->header_stage = 0; | |
794 | } | |
c6905e45 | 795 | return 0; |
fd1062e5 | 796 | } |
c6905e45 JH |
797 | } |
798 | ||
799 | if (mi->use_inbody_headers && mi->header_stage) { | |
334192b4 | 800 | mi->header_stage = check_inbody_header(mi, line); |
c6905e45 JH |
801 | if (mi->header_stage) |
802 | return 0; | |
803 | } else | |
804 | /* Only trim the first (blank) line of the commit message | |
805 | * when ignoring in-body headers. | |
806 | */ | |
807 | mi->header_stage = 0; | |
808 | ||
809 | /* normalize the log message to UTF-8. */ | |
669b963a | 810 | if (convert_to_utf8(mi, line, mi->charset.buf)) |
6ac617a3 | 811 | return 0; /* mi->input_error already set */ |
c6905e45 | 812 | |
9c5681da | 813 | if (mi->use_scissors && is_scissors_line(line->buf)) { |
c6905e45 JH |
814 | int i; |
815 | ||
816 | strbuf_setlen(&mi->log_message, 0); | |
817 | mi->header_stage = 1; | |
818 | ||
819 | /* | |
820 | * We may have already read "secondary headers"; purge | |
821 | * them to give ourselves a clean restart. | |
822 | */ | |
823 | for (i = 0; header[i]; i++) { | |
824 | if (mi->s_hdr_data[i]) | |
825 | strbuf_release(mi->s_hdr_data[i]); | |
f3a96807 | 826 | FREE_AND_NULL(mi->s_hdr_data[i]); |
c6905e45 JH |
827 | } |
828 | return 0; | |
829 | } | |
830 | ||
831 | if (patchbreak(line)) { | |
832 | if (mi->message_id) | |
833 | strbuf_addf(&mi->log_message, | |
ba4324c4 | 834 | "Message-ID: %s\n", mi->message_id); |
c6905e45 JH |
835 | return 1; |
836 | } | |
837 | ||
838 | strbuf_addbuf(&mi->log_message, line); | |
839 | return 0; | |
840 | } | |
841 | ||
842 | static void handle_patch(struct mailinfo *mi, const struct strbuf *line) | |
843 | { | |
844 | fwrite(line->buf, 1, line->len, mi->patchfile); | |
845 | mi->patch_lines++; | |
846 | } | |
847 | ||
848 | static void handle_filter(struct mailinfo *mi, struct strbuf *line) | |
849 | { | |
850 | switch (mi->filter_stage) { | |
851 | case 0: | |
852 | if (!handle_commit_msg(mi, line)) | |
853 | break; | |
854 | mi->filter_stage++; | |
1cf01a34 | 855 | /* fallthrough */ |
c6905e45 JH |
856 | case 1: |
857 | handle_patch(mi, line); | |
858 | break; | |
859 | } | |
860 | } | |
861 | ||
862 | static int is_rfc2822_header(const struct strbuf *line) | |
863 | { | |
864 | /* | |
865 | * The section that defines the loosest possible | |
866 | * field name is "3.6.8 Optional fields". | |
867 | * | |
868 | * optional-field = field-name ":" unstructured CRLF | |
869 | * field-name = 1*ftext | |
870 | * ftext = %d33-57 / %59-126 | |
871 | */ | |
872 | int ch; | |
873 | char *cp = line->buf; | |
874 | ||
875 | /* Count mbox From headers as headers */ | |
876 | if (starts_with(cp, "From ") || starts_with(cp, ">From ")) | |
877 | return 1; | |
878 | ||
879 | while ((ch = *cp++)) { | |
880 | if (ch == ':') | |
881 | return 1; | |
882 | if ((33 <= ch && ch <= 57) || | |
883 | (59 <= ch && ch <= 126)) | |
884 | continue; | |
885 | break; | |
886 | } | |
887 | return 0; | |
888 | } | |
889 | ||
890 | static int read_one_header_line(struct strbuf *line, FILE *in) | |
891 | { | |
892 | struct strbuf continuation = STRBUF_INIT; | |
893 | ||
894 | /* Get the first part of the line. */ | |
8f309aeb | 895 | if (strbuf_getline_lf(line, in)) |
c6905e45 JH |
896 | return 0; |
897 | ||
898 | /* | |
899 | * Is it an empty line or not a valid rfc2822 header? | |
900 | * If so, stop here, and return false ("not a header") | |
901 | */ | |
902 | strbuf_rtrim(line); | |
903 | if (!line->len || !is_rfc2822_header(line)) { | |
904 | /* Re-add the newline */ | |
905 | strbuf_addch(line, '\n'); | |
906 | return 0; | |
907 | } | |
908 | ||
909 | /* | |
910 | * Now we need to eat all the continuation lines.. | |
911 | * Yuck, 2822 header "folding" | |
912 | */ | |
913 | for (;;) { | |
914 | int peek; | |
915 | ||
f0733c13 JS |
916 | peek = fgetc(in); |
917 | if (peek == EOF) | |
918 | break; | |
919 | ungetc(peek, in); | |
c6905e45 JH |
920 | if (peek != ' ' && peek != '\t') |
921 | break; | |
8f309aeb | 922 | if (strbuf_getline_lf(&continuation, in)) |
c6905e45 JH |
923 | break; |
924 | continuation.buf[0] = ' '; | |
925 | strbuf_rtrim(&continuation); | |
926 | strbuf_addbuf(line, &continuation); | |
927 | } | |
928 | strbuf_release(&continuation); | |
929 | ||
930 | return 1; | |
931 | } | |
932 | ||
933 | static int find_boundary(struct mailinfo *mi, struct strbuf *line) | |
934 | { | |
8f309aeb | 935 | while (!strbuf_getline_lf(line, mi->input)) { |
c6905e45 JH |
936 | if (*(mi->content_top) && is_multipart_boundary(mi, line)) |
937 | return 1; | |
938 | } | |
939 | return 0; | |
940 | } | |
941 | ||
942 | static int handle_boundary(struct mailinfo *mi, struct strbuf *line) | |
943 | { | |
944 | struct strbuf newline = STRBUF_INIT; | |
945 | ||
946 | strbuf_addch(&newline, '\n'); | |
947 | again: | |
948 | if (line->len >= (*(mi->content_top))->len + 2 && | |
949 | !memcmp(line->buf + (*(mi->content_top))->len, "--", 2)) { | |
950 | /* we hit an end boundary */ | |
951 | /* pop the current boundary off the stack */ | |
952 | strbuf_release(*(mi->content_top)); | |
6a83d902 | 953 | FREE_AND_NULL(*(mi->content_top)); |
c6905e45 JH |
954 | |
955 | /* technically won't happen as is_multipart_boundary() | |
956 | will fail first. But just in case.. | |
957 | */ | |
958 | if (--mi->content_top < mi->content) { | |
6ac617a3 JH |
959 | error("Detected mismatched boundaries, can't recover"); |
960 | mi->input_error = -1; | |
961 | mi->content_top = mi->content; | |
400cd6bf | 962 | strbuf_release(&newline); |
6ac617a3 | 963 | return 0; |
c6905e45 JH |
964 | } |
965 | handle_filter(mi, &newline); | |
966 | strbuf_release(&newline); | |
6ac617a3 JH |
967 | if (mi->input_error) |
968 | return 0; | |
c6905e45 JH |
969 | |
970 | /* skip to the next boundary */ | |
971 | if (!find_boundary(mi, line)) | |
972 | return 0; | |
973 | goto again; | |
974 | } | |
975 | ||
976 | /* set some defaults */ | |
977 | mi->transfer_encoding = TE_DONTCARE; | |
978 | strbuf_reset(&mi->charset); | |
979 | ||
980 | /* slurp in this section's info */ | |
981 | while (read_one_header_line(line, mi->input)) | |
982 | check_header(mi, line, mi->p_hdr_data, 0); | |
983 | ||
984 | strbuf_release(&newline); | |
985 | /* replenish line */ | |
8f309aeb | 986 | if (strbuf_getline_lf(line, mi->input)) |
c6905e45 JH |
987 | return 0; |
988 | strbuf_addch(line, '\n'); | |
989 | return 1; | |
990 | } | |
991 | ||
3aa4d81f RS |
992 | static void handle_filter_flowed(struct mailinfo *mi, struct strbuf *line, |
993 | struct strbuf *prev) | |
994 | { | |
995 | size_t len = line->len; | |
996 | const char *rest; | |
997 | ||
998 | if (!mi->format_flowed) { | |
0b689562 ĐTCD |
999 | if (len >= 2 && |
1000 | line->buf[len - 2] == '\r' && | |
1001 | line->buf[len - 1] == '\n') { | |
1002 | mi->have_quoted_cr = 1; | |
133a4fda ĐTCD |
1003 | if (mi->quoted_cr == quoted_cr_strip) { |
1004 | strbuf_setlen(line, len - 2); | |
1005 | strbuf_addch(line, '\n'); | |
1006 | len--; | |
1007 | } | |
0b689562 | 1008 | } |
3aa4d81f RS |
1009 | handle_filter(mi, line); |
1010 | return; | |
1011 | } | |
1012 | ||
1013 | if (line->buf[len - 1] == '\n') { | |
1014 | len--; | |
1015 | if (len && line->buf[len - 1] == '\r') | |
1016 | len--; | |
1017 | } | |
1018 | ||
1019 | /* Keep signature separator as-is. */ | |
1020 | if (skip_prefix(line->buf, "-- ", &rest) && rest - line->buf == len) { | |
1021 | if (prev->len) { | |
1022 | handle_filter(mi, prev); | |
1023 | strbuf_reset(prev); | |
1024 | } | |
1025 | handle_filter(mi, line); | |
1026 | return; | |
1027 | } | |
1028 | ||
1029 | /* Unstuff space-stuffed line. */ | |
1030 | if (len && line->buf[0] == ' ') { | |
1031 | strbuf_remove(line, 0, 1); | |
1032 | len--; | |
1033 | } | |
1034 | ||
1035 | /* Save flowed line for later, but without the soft line break. */ | |
1036 | if (len && line->buf[len - 1] == ' ') { | |
1037 | strbuf_add(prev, line->buf, len - !!mi->delsp); | |
1038 | return; | |
1039 | } | |
1040 | ||
1041 | /* Prepend any previous partial lines */ | |
1042 | strbuf_insert(line, 0, prev->buf, prev->len); | |
1043 | strbuf_reset(prev); | |
1044 | ||
1045 | handle_filter(mi, line); | |
1046 | } | |
1047 | ||
0b689562 ĐTCD |
1048 | static void summarize_quoted_cr(struct mailinfo *mi) |
1049 | { | |
f1aa2994 ĐTCD |
1050 | if (mi->have_quoted_cr && |
1051 | mi->quoted_cr == quoted_cr_warn) | |
0b689562 ĐTCD |
1052 | warning(_("quoted CRLF detected")); |
1053 | } | |
1054 | ||
c6905e45 JH |
1055 | static void handle_body(struct mailinfo *mi, struct strbuf *line) |
1056 | { | |
1057 | struct strbuf prev = STRBUF_INIT; | |
1058 | ||
1059 | /* Skip up to the first boundary */ | |
1060 | if (*(mi->content_top)) { | |
1061 | if (!find_boundary(mi, line)) | |
1062 | goto handle_body_out; | |
1063 | } | |
1064 | ||
1065 | do { | |
1066 | /* process any boundary lines */ | |
1067 | if (*(mi->content_top) && is_multipart_boundary(mi, line)) { | |
1068 | /* flush any leftover */ | |
1069 | if (prev.len) { | |
1070 | handle_filter(mi, &prev); | |
1071 | strbuf_reset(&prev); | |
1072 | } | |
0b689562 ĐTCD |
1073 | summarize_quoted_cr(mi); |
1074 | mi->have_quoted_cr = 0; | |
c6905e45 JH |
1075 | if (!handle_boundary(mi, line)) |
1076 | goto handle_body_out; | |
1077 | } | |
1078 | ||
1079 | /* Unwrap transfer encoding */ | |
1080 | decode_transfer_encoding(mi, line); | |
1081 | ||
1082 | switch (mi->transfer_encoding) { | |
1083 | case TE_BASE64: | |
1084 | case TE_QP: | |
1085 | { | |
1086 | struct strbuf **lines, **it, *sb; | |
1087 | ||
1088 | /* Prepend any previous partial lines */ | |
1089 | strbuf_insert(line, 0, prev.buf, prev.len); | |
1090 | strbuf_reset(&prev); | |
1091 | ||
1092 | /* | |
1093 | * This is a decoded line that may contain | |
1094 | * multiple new lines. Pass only one chunk | |
1095 | * at a time to handle_filter() | |
1096 | */ | |
1097 | lines = strbuf_split(line, '\n'); | |
1098 | for (it = lines; (sb = *it); it++) { | |
afe8a907 | 1099 | if (!*(it + 1)) /* The last line */ |
c6905e45 JH |
1100 | if (sb->buf[sb->len - 1] != '\n') { |
1101 | /* Partial line, save it for later. */ | |
1102 | strbuf_addbuf(&prev, sb); | |
1103 | break; | |
1104 | } | |
3aa4d81f | 1105 | handle_filter_flowed(mi, sb, &prev); |
c6905e45 JH |
1106 | } |
1107 | /* | |
1108 | * The partial chunk is saved in "prev" and will be | |
1109 | * appended by the next iteration of read_line_with_nul(). | |
1110 | */ | |
1111 | strbuf_list_free(lines); | |
1112 | break; | |
1113 | } | |
1114 | default: | |
3aa4d81f | 1115 | handle_filter_flowed(mi, line, &prev); |
c6905e45 JH |
1116 | } |
1117 | ||
6ac617a3 JH |
1118 | if (mi->input_error) |
1119 | break; | |
c6905e45 JH |
1120 | } while (!strbuf_getwholeline(line, mi->input, '\n')); |
1121 | ||
3aa4d81f RS |
1122 | if (prev.len) |
1123 | handle_filter(mi, &prev); | |
0b689562 | 1124 | summarize_quoted_cr(mi); |
3aa4d81f | 1125 | |
6b4b013f JT |
1126 | flush_inbody_header_accum(mi); |
1127 | ||
c6905e45 JH |
1128 | handle_body_out: |
1129 | strbuf_release(&prev); | |
1130 | } | |
1131 | ||
1132 | static void output_header_lines(FILE *fout, const char *hdr, const struct strbuf *data) | |
1133 | { | |
1134 | const char *sp = data->buf; | |
1135 | while (1) { | |
1136 | char *ep = strchr(sp, '\n'); | |
1137 | int len; | |
1138 | if (!ep) | |
1139 | len = strlen(sp); | |
1140 | else | |
1141 | len = ep - sp; | |
1142 | fprintf(fout, "%s: %.*s\n", hdr, len, sp); | |
1143 | if (!ep) | |
1144 | break; | |
1145 | sp = ep + 1; | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | static void handle_info(struct mailinfo *mi) | |
1150 | { | |
1151 | struct strbuf *hdr; | |
1152 | int i; | |
1153 | ||
1154 | for (i = 0; header[i]; i++) { | |
1155 | /* only print inbody headers if we output a patch file */ | |
1156 | if (mi->patch_lines && mi->s_hdr_data[i]) | |
1157 | hdr = mi->s_hdr_data[i]; | |
1158 | else if (mi->p_hdr_data[i]) | |
1159 | hdr = mi->p_hdr_data[i]; | |
1160 | else | |
1161 | continue; | |
1162 | ||
39199974 ĐTCD |
1163 | if (memchr(hdr->buf, '\0', hdr->len)) { |
1164 | error("a NUL byte in '%s' is not allowed.", header[i]); | |
1165 | mi->input_error = -1; | |
1166 | } | |
1167 | ||
c6905e45 JH |
1168 | if (!strcmp(header[i], "Subject")) { |
1169 | if (!mi->keep_subject) { | |
1170 | cleanup_subject(mi, hdr); | |
1171 | cleanup_space(hdr); | |
1172 | } | |
1173 | output_header_lines(mi->output, "Subject", hdr); | |
1174 | } else if (!strcmp(header[i], "From")) { | |
1175 | cleanup_space(hdr); | |
1176 | handle_from(mi, hdr); | |
1177 | fprintf(mi->output, "Author: %s\n", mi->name.buf); | |
1178 | fprintf(mi->output, "Email: %s\n", mi->email.buf); | |
1179 | } else { | |
1180 | cleanup_space(hdr); | |
1181 | fprintf(mi->output, "%s: %s\n", header[i], hdr->buf); | |
1182 | } | |
1183 | } | |
1184 | fprintf(mi->output, "\n"); | |
1185 | } | |
1186 | ||
1187 | int mailinfo(struct mailinfo *mi, const char *msg, const char *patch) | |
1188 | { | |
1189 | FILE *cmitmsg; | |
1190 | int peek; | |
1191 | struct strbuf line = STRBUF_INIT; | |
1192 | ||
1193 | cmitmsg = fopen(msg, "w"); | |
1194 | if (!cmitmsg) { | |
1195 | perror(msg); | |
1196 | return -1; | |
1197 | } | |
1198 | mi->patchfile = fopen(patch, "w"); | |
1199 | if (!mi->patchfile) { | |
1200 | perror(patch); | |
1201 | fclose(cmitmsg); | |
1202 | return -1; | |
1203 | } | |
1204 | ||
1205 | mi->p_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*(mi->p_hdr_data))); | |
1206 | mi->s_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*(mi->s_hdr_data))); | |
1207 | ||
1208 | do { | |
1209 | peek = fgetc(mi->input); | |
f0733c13 JS |
1210 | if (peek == EOF) { |
1211 | fclose(cmitmsg); | |
1212 | return error("empty patch: '%s'", patch); | |
1213 | } | |
c6905e45 JH |
1214 | } while (isspace(peek)); |
1215 | ungetc(peek, mi->input); | |
1216 | ||
1217 | /* process the email header */ | |
1218 | while (read_one_header_line(&line, mi->input)) | |
1219 | check_header(mi, &line, mi->p_hdr_data, 1); | |
1220 | ||
1221 | handle_body(mi, &line); | |
1222 | fwrite(mi->log_message.buf, 1, mi->log_message.len, cmitmsg); | |
1223 | fclose(cmitmsg); | |
1224 | fclose(mi->patchfile); | |
1225 | ||
1226 | handle_info(mi); | |
1227 | strbuf_release(&line); | |
6ac617a3 | 1228 | return mi->input_error; |
c6905e45 JH |
1229 | } |
1230 | ||
f1aa2994 ĐTCD |
1231 | int mailinfo_parse_quoted_cr_action(const char *actionstr, int *action) |
1232 | { | |
1233 | if (!strcmp(actionstr, "nowarn")) | |
1234 | *action = quoted_cr_nowarn; | |
1235 | else if (!strcmp(actionstr, "warn")) | |
1236 | *action = quoted_cr_warn; | |
133a4fda ĐTCD |
1237 | else if (!strcmp(actionstr, "strip")) |
1238 | *action = quoted_cr_strip; | |
f1aa2994 ĐTCD |
1239 | else |
1240 | return -1; | |
1241 | return 0; | |
1242 | } | |
1243 | ||
a4e7e317 GC |
1244 | static int git_mailinfo_config(const char *var, const char *value, |
1245 | const struct config_context *ctx, void *mi_) | |
c6905e45 JH |
1246 | { |
1247 | struct mailinfo *mi = mi_; | |
1248 | ||
1249 | if (!starts_with(var, "mailinfo.")) | |
a4e7e317 | 1250 | return git_default_config(var, value, ctx, NULL); |
c6905e45 JH |
1251 | if (!strcmp(var, "mailinfo.scissors")) { |
1252 | mi->use_scissors = git_config_bool(var, value); | |
1253 | return 0; | |
1254 | } | |
f1aa2994 ĐTCD |
1255 | if (!strcmp(var, "mailinfo.quotedcr")) { |
1256 | if (mailinfo_parse_quoted_cr_action(value, &mi->quoted_cr) != 0) | |
1257 | return error(_("bad action '%s' for '%s'"), value, var); | |
1258 | return 0; | |
1259 | } | |
c6905e45 JH |
1260 | /* perhaps others here */ |
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | void setup_mailinfo(struct mailinfo *mi) | |
1265 | { | |
1266 | memset(mi, 0, sizeof(*mi)); | |
1267 | strbuf_init(&mi->name, 0); | |
1268 | strbuf_init(&mi->email, 0); | |
1269 | strbuf_init(&mi->charset, 0); | |
1270 | strbuf_init(&mi->log_message, 0); | |
6b4b013f | 1271 | strbuf_init(&mi->inbody_header_accum, 0); |
f1aa2994 | 1272 | mi->quoted_cr = quoted_cr_warn; |
c6905e45 JH |
1273 | mi->header_stage = 1; |
1274 | mi->use_inbody_headers = 1; | |
1275 | mi->content_top = mi->content; | |
85d9d9dd | 1276 | git_config(git_mailinfo_config, mi); |
c6905e45 JH |
1277 | } |
1278 | ||
1279 | void clear_mailinfo(struct mailinfo *mi) | |
1280 | { | |
c6905e45 JH |
1281 | strbuf_release(&mi->name); |
1282 | strbuf_release(&mi->email); | |
1283 | strbuf_release(&mi->charset); | |
6b4b013f | 1284 | strbuf_release(&mi->inbody_header_accum); |
c6905e45 JH |
1285 | free(mi->message_id); |
1286 | ||
f3a96807 AH |
1287 | strbuf_list_free(mi->p_hdr_data); |
1288 | strbuf_list_free(mi->s_hdr_data); | |
c6905e45 JH |
1289 | |
1290 | while (mi->content < mi->content_top) { | |
1291 | free(*(mi->content_top)); | |
1292 | mi->content_top--; | |
1293 | } | |
1294 | ||
1295 | strbuf_release(&mi->log_message); | |
1296 | } |