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f2561fda MM |
1 | /* |
2 | * git-imap-send - drops patches into an imap Drafts folder | |
3 | * derived from isync/mbsync - mailbox synchronizer | |
4 | * | |
5 | * Copyright (C) 2000-2002 Michael R. Elkins <me@mutt.org> | |
6 | * Copyright (C) 2002-2004 Oswald Buddenhagen <ossi@users.sf.net> | |
7 | * Copyright (C) 2004 Theodore Y. Ts'o <tytso@mit.edu> | |
8 | * Copyright (C) 2006 Mike McCormack | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | */ | |
24 | ||
25 | #include "cache.h" | |
2fb3f6db | 26 | #include "exec_cmd.h" |
684ec6c6 RS |
27 | #ifdef NO_OPENSSL |
28 | typedef void *SSL; | |
29 | #endif | |
f2561fda | 30 | |
9f1ad541 | 31 | struct store_conf { |
f2561fda MM |
32 | char *name; |
33 | const char *path; /* should this be here? its interpretation is driver-specific */ | |
34 | char *map_inbox; | |
35 | char *trash; | |
36 | unsigned max_size; /* off_t is overkill */ | |
37 | unsigned trash_remote_new:1, trash_only_new:1; | |
9f1ad541 | 38 | }; |
f2561fda | 39 | |
9f1ad541 | 40 | struct string_list { |
f2561fda MM |
41 | struct string_list *next; |
42 | char string[1]; | |
9f1ad541 | 43 | }; |
f2561fda | 44 | |
9f1ad541 | 45 | struct channel_conf { |
f2561fda MM |
46 | struct channel_conf *next; |
47 | char *name; | |
9f1ad541 | 48 | struct store_conf *master, *slave; |
f2561fda MM |
49 | char *master_name, *slave_name; |
50 | char *sync_state; | |
9f1ad541 | 51 | struct string_list *patterns; |
f2561fda MM |
52 | int mops, sops; |
53 | unsigned max_messages; /* for slave only */ | |
9f1ad541 | 54 | }; |
f2561fda | 55 | |
9f1ad541 | 56 | struct group_conf { |
f2561fda MM |
57 | struct group_conf *next; |
58 | char *name; | |
9f1ad541 JH |
59 | struct string_list *channels; |
60 | }; | |
f2561fda MM |
61 | |
62 | /* For message->status */ | |
63 | #define M_RECENT (1<<0) /* unsyncable flag; maildir_* depend on this being 1<<0 */ | |
64 | #define M_DEAD (1<<1) /* expunged */ | |
65 | #define M_FLAGS (1<<2) /* flags fetched */ | |
66 | ||
9f1ad541 | 67 | struct message { |
f2561fda | 68 | struct message *next; |
9f1ad541 | 69 | /* struct string_list *keywords; */ |
f2561fda MM |
70 | size_t size; /* zero implies "not fetched" */ |
71 | int uid; | |
72 | unsigned char flags, status; | |
9f1ad541 | 73 | }; |
f2561fda | 74 | |
9f1ad541 JH |
75 | struct store { |
76 | struct store_conf *conf; /* foreign */ | |
f2561fda MM |
77 | |
78 | /* currently open mailbox */ | |
79 | const char *name; /* foreign! maybe preset? */ | |
80 | char *path; /* own */ | |
9f1ad541 | 81 | struct message *msgs; /* own */ |
f2561fda MM |
82 | int uidvalidity; |
83 | unsigned char opts; /* maybe preset? */ | |
84 | /* note that the following do _not_ reflect stats from msgs, but mailbox totals */ | |
85 | int count; /* # of messages */ | |
86 | int recent; /* # of recent messages - don't trust this beyond the initial read */ | |
9f1ad541 | 87 | }; |
f2561fda | 88 | |
9f1ad541 | 89 | struct msg_data { |
f2561fda MM |
90 | char *data; |
91 | int len; | |
92 | unsigned char flags; | |
2bda77e0 | 93 | unsigned int crlf:1; |
9f1ad541 | 94 | }; |
f2561fda MM |
95 | |
96 | #define DRV_OK 0 | |
97 | #define DRV_MSG_BAD -1 | |
98 | #define DRV_BOX_BAD -2 | |
99 | #define DRV_STORE_BAD -3 | |
100 | ||
101 | static int Verbose, Quiet; | |
102 | ||
95c53908 RS |
103 | static void imap_info(const char *, ...); |
104 | static void imap_warn(const char *, ...); | |
f2561fda | 105 | |
95c53908 | 106 | static char *next_arg(char **); |
f2561fda | 107 | |
9f1ad541 | 108 | static void free_generic_messages(struct message *); |
f2561fda | 109 | |
95c53908 | 110 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...); |
f2561fda | 111 | |
19247e55 PH |
112 | static int nfvasprintf(char **strp, const char *fmt, va_list ap) |
113 | { | |
114 | int len; | |
115 | char tmp[8192]; | |
116 | ||
117 | len = vsnprintf(tmp, sizeof(tmp), fmt, ap); | |
118 | if (len < 0) | |
d7530708 | 119 | die("Fatal: Out of memory"); |
19247e55 | 120 | if (len >= sizeof(tmp)) |
d7530708 | 121 | die("imap command overflow!"); |
19247e55 PH |
122 | *strp = xmemdupz(tmp, len); |
123 | return len; | |
124 | } | |
f2561fda | 125 | |
95c53908 RS |
126 | static void arc4_init(void); |
127 | static unsigned char arc4_getbyte(void); | |
f2561fda | 128 | |
9f1ad541 | 129 | struct imap_server_conf { |
f2561fda MM |
130 | char *name; |
131 | char *tunnel; | |
132 | char *host; | |
133 | int port; | |
134 | char *user; | |
135 | char *pass; | |
684ec6c6 RS |
136 | int use_ssl; |
137 | int ssl_verify; | |
9f1ad541 | 138 | }; |
f2561fda | 139 | |
9f1ad541 JH |
140 | struct imap_store_conf { |
141 | struct store_conf gen; | |
142 | struct imap_server_conf *server; | |
f2561fda | 143 | unsigned use_namespace:1; |
9f1ad541 | 144 | }; |
f2561fda | 145 | |
9f1ad541 JH |
146 | #define NIL (void *)0x1 |
147 | #define LIST (void *)0x2 | |
f2561fda | 148 | |
9f1ad541 JH |
149 | struct imap_list { |
150 | struct imap_list *next, *child; | |
f2561fda MM |
151 | char *val; |
152 | int len; | |
9f1ad541 | 153 | }; |
f2561fda | 154 | |
9f1ad541 | 155 | struct imap_socket { |
f2561fda | 156 | int fd; |
684ec6c6 | 157 | SSL *ssl; |
9f1ad541 | 158 | }; |
f2561fda | 159 | |
9f1ad541 JH |
160 | struct imap_buffer { |
161 | struct imap_socket sock; | |
f2561fda MM |
162 | int bytes; |
163 | int offset; | |
164 | char buf[1024]; | |
9f1ad541 | 165 | }; |
f2561fda MM |
166 | |
167 | struct imap_cmd; | |
168 | ||
9f1ad541 | 169 | struct imap { |
f2561fda | 170 | int uidnext; /* from SELECT responses */ |
9f1ad541 | 171 | struct imap_list *ns_personal, *ns_other, *ns_shared; /* NAMESPACE info */ |
f2561fda MM |
172 | unsigned caps, rcaps; /* CAPABILITY results */ |
173 | /* command queue */ | |
174 | int nexttag, num_in_progress, literal_pending; | |
175 | struct imap_cmd *in_progress, **in_progress_append; | |
9f1ad541 JH |
176 | struct imap_buffer buf; /* this is BIG, so put it last */ |
177 | }; | |
f2561fda | 178 | |
9f1ad541 JH |
179 | struct imap_store { |
180 | struct store gen; | |
f2561fda | 181 | int uidvalidity; |
9f1ad541 | 182 | struct imap *imap; |
f2561fda MM |
183 | const char *prefix; |
184 | unsigned /*currentnc:1,*/ trashnc:1; | |
9f1ad541 | 185 | }; |
f2561fda MM |
186 | |
187 | struct imap_cmd_cb { | |
9f1ad541 JH |
188 | int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt); |
189 | void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response); | |
f2561fda MM |
190 | void *ctx; |
191 | char *data; | |
192 | int dlen; | |
193 | int uid; | |
194 | unsigned create:1, trycreate:1; | |
195 | }; | |
196 | ||
197 | struct imap_cmd { | |
198 | struct imap_cmd *next; | |
199 | struct imap_cmd_cb cb; | |
200 | char *cmd; | |
201 | int tag; | |
202 | }; | |
203 | ||
204 | #define CAP(cap) (imap->caps & (1 << (cap))) | |
205 | ||
206 | enum CAPABILITY { | |
207 | NOLOGIN = 0, | |
208 | UIDPLUS, | |
209 | LITERALPLUS, | |
210 | NAMESPACE, | |
684ec6c6 | 211 | STARTTLS, |
f2561fda MM |
212 | }; |
213 | ||
214 | static const char *cap_list[] = { | |
215 | "LOGINDISABLED", | |
216 | "UIDPLUS", | |
217 | "LITERAL+", | |
218 | "NAMESPACE", | |
684ec6c6 | 219 | "STARTTLS", |
f2561fda MM |
220 | }; |
221 | ||
222 | #define RESP_OK 0 | |
223 | #define RESP_NO 1 | |
224 | #define RESP_BAD 2 | |
225 | ||
9f1ad541 | 226 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd); |
f2561fda MM |
227 | |
228 | ||
229 | static const char *Flags[] = { | |
230 | "Draft", | |
231 | "Flagged", | |
232 | "Answered", | |
233 | "Seen", | |
234 | "Deleted", | |
235 | }; | |
236 | ||
684ec6c6 RS |
237 | #ifndef NO_OPENSSL |
238 | static void ssl_socket_perror(const char *func) | |
239 | { | |
240 | fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), 0)); | |
241 | } | |
242 | #endif | |
243 | ||
9f1ad541 | 244 | static void socket_perror(const char *func, struct imap_socket *sock, int ret) |
f2561fda | 245 | { |
684ec6c6 RS |
246 | #ifndef NO_OPENSSL |
247 | if (sock->ssl) { | |
248 | int sslerr = SSL_get_error(sock->ssl, ret); | |
249 | switch (sslerr) { | |
250 | case SSL_ERROR_NONE: | |
251 | break; | |
252 | case SSL_ERROR_SYSCALL: | |
253 | perror("SSL_connect"); | |
254 | break; | |
255 | default: | |
256 | ssl_socket_perror("SSL_connect"); | |
257 | break; | |
258 | } | |
259 | } else | |
260 | #endif | |
261 | { | |
262 | if (ret < 0) | |
263 | perror(func); | |
264 | else | |
265 | fprintf(stderr, "%s: unexpected EOF\n", func); | |
266 | } | |
267 | } | |
268 | ||
9f1ad541 | 269 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
684ec6c6 RS |
270 | { |
271 | #ifdef NO_OPENSSL | |
272 | fprintf(stderr, "SSL requested but SSL support not compiled in\n"); | |
273 | return -1; | |
274 | #else | |
275 | SSL_METHOD *meth; | |
276 | SSL_CTX *ctx; | |
277 | int ret; | |
278 | ||
279 | SSL_library_init(); | |
280 | SSL_load_error_strings(); | |
281 | ||
282 | if (use_tls_only) | |
283 | meth = TLSv1_method(); | |
f2561fda | 284 | else |
684ec6c6 RS |
285 | meth = SSLv23_method(); |
286 | ||
287 | if (!meth) { | |
288 | ssl_socket_perror("SSLv23_method"); | |
289 | return -1; | |
290 | } | |
291 | ||
292 | ctx = SSL_CTX_new(meth); | |
293 | ||
294 | if (verify) | |
295 | SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL); | |
296 | ||
297 | if (!SSL_CTX_set_default_verify_paths(ctx)) { | |
298 | ssl_socket_perror("SSL_CTX_set_default_verify_paths"); | |
299 | return -1; | |
300 | } | |
301 | sock->ssl = SSL_new(ctx); | |
302 | if (!sock->ssl) { | |
303 | ssl_socket_perror("SSL_new"); | |
304 | return -1; | |
305 | } | |
306 | if (!SSL_set_fd(sock->ssl, sock->fd)) { | |
307 | ssl_socket_perror("SSL_set_fd"); | |
308 | return -1; | |
309 | } | |
310 | ||
311 | ret = SSL_connect(sock->ssl); | |
312 | if (ret <= 0) { | |
313 | socket_perror("SSL_connect", sock, ret); | |
314 | return -1; | |
315 | } | |
316 | ||
317 | return 0; | |
318 | #endif | |
f2561fda MM |
319 | } |
320 | ||
9f1ad541 | 321 | static int socket_read(struct imap_socket *sock, char *buf, int len) |
f2561fda | 322 | { |
684ec6c6 RS |
323 | ssize_t n; |
324 | #ifndef NO_OPENSSL | |
325 | if (sock->ssl) | |
326 | n = SSL_read(sock->ssl, buf, len); | |
327 | else | |
328 | #endif | |
95c53908 | 329 | n = xread(sock->fd, buf, len); |
f2561fda | 330 | if (n <= 0) { |
95c53908 RS |
331 | socket_perror("read", sock, n); |
332 | close(sock->fd); | |
f2561fda MM |
333 | sock->fd = -1; |
334 | } | |
335 | return n; | |
336 | } | |
337 | ||
9f1ad541 | 338 | static int socket_write(struct imap_socket *sock, const char *buf, int len) |
f2561fda | 339 | { |
684ec6c6 RS |
340 | int n; |
341 | #ifndef NO_OPENSSL | |
342 | if (sock->ssl) | |
343 | n = SSL_write(sock->ssl, buf, len); | |
344 | else | |
345 | #endif | |
95c53908 | 346 | n = write_in_full(sock->fd, buf, len); |
f2561fda | 347 | if (n != len) { |
95c53908 RS |
348 | socket_perror("write", sock, n); |
349 | close(sock->fd); | |
f2561fda MM |
350 | sock->fd = -1; |
351 | } | |
352 | return n; | |
353 | } | |
354 | ||
9f1ad541 | 355 | static void socket_shutdown(struct imap_socket *sock) |
684ec6c6 RS |
356 | { |
357 | #ifndef NO_OPENSSL | |
358 | if (sock->ssl) { | |
359 | SSL_shutdown(sock->ssl); | |
360 | SSL_free(sock->ssl); | |
361 | } | |
362 | #endif | |
363 | close(sock->fd); | |
364 | } | |
365 | ||
f2561fda | 366 | /* simple line buffering */ |
9f1ad541 | 367 | static int buffer_gets(struct imap_buffer *b, char **s) |
f2561fda MM |
368 | { |
369 | int n; | |
370 | int start = b->offset; | |
371 | ||
372 | *s = b->buf + start; | |
373 | ||
374 | for (;;) { | |
375 | /* make sure we have enough data to read the \r\n sequence */ | |
376 | if (b->offset + 1 >= b->bytes) { | |
377 | if (start) { | |
378 | /* shift down used bytes */ | |
379 | *s = b->buf; | |
380 | ||
95c53908 | 381 | assert(start <= b->bytes); |
f2561fda MM |
382 | n = b->bytes - start; |
383 | ||
384 | if (n) | |
173a9cbe | 385 | memmove(b->buf, b->buf + start, n); |
f2561fda MM |
386 | b->offset -= start; |
387 | b->bytes = n; | |
388 | start = 0; | |
389 | } | |
390 | ||
95c53908 RS |
391 | n = socket_read(&b->sock, b->buf + b->bytes, |
392 | sizeof(b->buf) - b->bytes); | |
f2561fda MM |
393 | |
394 | if (n <= 0) | |
395 | return -1; | |
396 | ||
397 | b->bytes += n; | |
398 | } | |
399 | ||
400 | if (b->buf[b->offset] == '\r') { | |
95c53908 | 401 | assert(b->offset + 1 < b->bytes); |
f2561fda MM |
402 | if (b->buf[b->offset + 1] == '\n') { |
403 | b->buf[b->offset] = 0; /* terminate the string */ | |
404 | b->offset += 2; /* next line */ | |
405 | if (Verbose) | |
95c53908 | 406 | puts(*s); |
f2561fda MM |
407 | return 0; |
408 | } | |
409 | } | |
410 | ||
411 | b->offset++; | |
412 | } | |
413 | /* not reached */ | |
414 | } | |
415 | ||
95c53908 | 416 | static void imap_info(const char *msg, ...) |
f2561fda MM |
417 | { |
418 | va_list va; | |
419 | ||
420 | if (!Quiet) { | |
95c53908 RS |
421 | va_start(va, msg); |
422 | vprintf(msg, va); | |
423 | va_end(va); | |
424 | fflush(stdout); | |
f2561fda MM |
425 | } |
426 | } | |
427 | ||
95c53908 | 428 | static void imap_warn(const char *msg, ...) |
f2561fda MM |
429 | { |
430 | va_list va; | |
431 | ||
432 | if (Quiet < 2) { | |
95c53908 RS |
433 | va_start(va, msg); |
434 | vfprintf(stderr, msg, va); | |
435 | va_end(va); | |
f2561fda MM |
436 | } |
437 | } | |
438 | ||
95c53908 | 439 | static char *next_arg(char **s) |
f2561fda MM |
440 | { |
441 | char *ret; | |
442 | ||
443 | if (!s || !*s) | |
5142db69 | 444 | return NULL; |
95c53908 | 445 | while (isspace((unsigned char) **s)) |
f2561fda MM |
446 | (*s)++; |
447 | if (!**s) { | |
5142db69 RS |
448 | *s = NULL; |
449 | return NULL; | |
f2561fda MM |
450 | } |
451 | if (**s == '"') { | |
452 | ++*s; | |
453 | ret = *s; | |
95c53908 | 454 | *s = strchr(*s, '"'); |
f2561fda MM |
455 | } else { |
456 | ret = *s; | |
95c53908 | 457 | while (**s && !isspace((unsigned char) **s)) |
f2561fda MM |
458 | (*s)++; |
459 | } | |
460 | if (*s) { | |
461 | if (**s) | |
462 | *(*s)++ = 0; | |
463 | if (!**s) | |
5142db69 | 464 | *s = NULL; |
f2561fda MM |
465 | } |
466 | return ret; | |
467 | } | |
468 | ||
9f1ad541 | 469 | static void free_generic_messages(struct message *msgs) |
f2561fda | 470 | { |
9f1ad541 | 471 | struct message *tmsg; |
f2561fda MM |
472 | |
473 | for (; msgs; msgs = tmsg) { | |
474 | tmsg = msgs->next; | |
95c53908 | 475 | free(msgs); |
f2561fda MM |
476 | } |
477 | } | |
478 | ||
95c53908 | 479 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...) |
f2561fda MM |
480 | { |
481 | int ret; | |
482 | va_list va; | |
483 | ||
95c53908 RS |
484 | va_start(va, fmt); |
485 | if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen) | |
d7530708 | 486 | die("Fatal: buffer too small. Please report a bug."); |
95c53908 | 487 | va_end(va); |
f2561fda MM |
488 | return ret; |
489 | } | |
490 | ||
f2561fda MM |
491 | static struct { |
492 | unsigned char i, j, s[256]; | |
493 | } rs; | |
494 | ||
95c53908 | 495 | static void arc4_init(void) |
f2561fda MM |
496 | { |
497 | int i, fd; | |
498 | unsigned char j, si, dat[128]; | |
499 | ||
95c53908 RS |
500 | if ((fd = open("/dev/urandom", O_RDONLY)) < 0 && (fd = open("/dev/random", O_RDONLY)) < 0) { |
501 | fprintf(stderr, "Fatal: no random number source available.\n"); | |
502 | exit(3); | |
f2561fda | 503 | } |
95c53908 RS |
504 | if (read_in_full(fd, dat, 128) != 128) { |
505 | fprintf(stderr, "Fatal: cannot read random number source.\n"); | |
506 | exit(3); | |
f2561fda | 507 | } |
95c53908 | 508 | close(fd); |
f2561fda MM |
509 | |
510 | for (i = 0; i < 256; i++) | |
511 | rs.s[i] = i; | |
512 | for (i = j = 0; i < 256; i++) { | |
513 | si = rs.s[i]; | |
514 | j += si + dat[i & 127]; | |
515 | rs.s[i] = rs.s[j]; | |
516 | rs.s[j] = si; | |
517 | } | |
518 | rs.i = rs.j = 0; | |
519 | ||
520 | for (i = 0; i < 256; i++) | |
521 | arc4_getbyte(); | |
522 | } | |
523 | ||
95c53908 | 524 | static unsigned char arc4_getbyte(void) |
f2561fda MM |
525 | { |
526 | unsigned char si, sj; | |
527 | ||
528 | rs.i++; | |
529 | si = rs.s[rs.i]; | |
530 | rs.j += si; | |
531 | sj = rs.s[rs.j]; | |
532 | rs.s[rs.i] = sj; | |
533 | rs.s[rs.j] = si; | |
534 | return rs.s[(si + sj) & 0xff]; | |
535 | } | |
536 | ||
9f1ad541 | 537 | static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx, |
95c53908 RS |
538 | struct imap_cmd_cb *cb, |
539 | const char *fmt, va_list ap) | |
f2561fda | 540 | { |
9f1ad541 | 541 | struct imap *imap = ctx->imap; |
f2561fda MM |
542 | struct imap_cmd *cmd; |
543 | int n, bufl; | |
544 | char buf[1024]; | |
545 | ||
95c53908 RS |
546 | cmd = xmalloc(sizeof(struct imap_cmd)); |
547 | nfvasprintf(&cmd->cmd, fmt, ap); | |
f2561fda MM |
548 | cmd->tag = ++imap->nexttag; |
549 | ||
550 | if (cb) | |
551 | cmd->cb = *cb; | |
552 | else | |
95c53908 | 553 | memset(&cmd->cb, 0, sizeof(cmd->cb)); |
f2561fda MM |
554 | |
555 | while (imap->literal_pending) | |
95c53908 | 556 | get_cmd_result(ctx, NULL); |
f2561fda | 557 | |
95c53908 | 558 | bufl = nfsnprintf(buf, sizeof(buf), cmd->cb.data ? CAP(LITERALPLUS) ? |
f2561fda | 559 | "%d %s{%d+}\r\n" : "%d %s{%d}\r\n" : "%d %s\r\n", |
95c53908 | 560 | cmd->tag, cmd->cmd, cmd->cb.dlen); |
f2561fda MM |
561 | if (Verbose) { |
562 | if (imap->num_in_progress) | |
95c53908 RS |
563 | printf("(%d in progress) ", imap->num_in_progress); |
564 | if (memcmp(cmd->cmd, "LOGIN", 5)) | |
565 | printf(">>> %s", buf); | |
f2561fda | 566 | else |
95c53908 | 567 | printf(">>> %d LOGIN <user> <pass>\n", cmd->tag); |
f2561fda | 568 | } |
95c53908 RS |
569 | if (socket_write(&imap->buf.sock, buf, bufl) != bufl) { |
570 | free(cmd->cmd); | |
571 | free(cmd); | |
8e0f7003 | 572 | if (cb) |
95c53908 | 573 | free(cb->data); |
f2561fda MM |
574 | return NULL; |
575 | } | |
576 | if (cmd->cb.data) { | |
577 | if (CAP(LITERALPLUS)) { | |
95c53908 RS |
578 | n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen); |
579 | free(cmd->cb.data); | |
f2561fda | 580 | if (n != cmd->cb.dlen || |
9f1ad541 | 581 | (n = socket_write(&imap->buf.sock, "\r\n", 2)) != 2) { |
95c53908 RS |
582 | free(cmd->cmd); |
583 | free(cmd); | |
f2561fda MM |
584 | return NULL; |
585 | } | |
5142db69 | 586 | cmd->cb.data = NULL; |
f2561fda MM |
587 | } else |
588 | imap->literal_pending = 1; | |
589 | } else if (cmd->cb.cont) | |
590 | imap->literal_pending = 1; | |
5142db69 | 591 | cmd->next = NULL; |
f2561fda MM |
592 | *imap->in_progress_append = cmd; |
593 | imap->in_progress_append = &cmd->next; | |
594 | imap->num_in_progress++; | |
595 | return cmd; | |
596 | } | |
597 | ||
9f1ad541 | 598 | static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx, |
95c53908 RS |
599 | struct imap_cmd_cb *cb, |
600 | const char *fmt, ...) | |
f2561fda MM |
601 | { |
602 | struct imap_cmd *ret; | |
603 | va_list ap; | |
604 | ||
95c53908 RS |
605 | va_start(ap, fmt); |
606 | ret = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
607 | va_end(ap); | |
f2561fda MM |
608 | return ret; |
609 | } | |
610 | ||
9f1ad541 | 611 | static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 612 | const char *fmt, ...) |
f2561fda MM |
613 | { |
614 | va_list ap; | |
615 | struct imap_cmd *cmdp; | |
616 | ||
95c53908 RS |
617 | va_start(ap, fmt); |
618 | cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
619 | va_end(ap); | |
f2561fda MM |
620 | if (!cmdp) |
621 | return RESP_BAD; | |
622 | ||
95c53908 | 623 | return get_cmd_result(ctx, cmdp); |
f2561fda MM |
624 | } |
625 | ||
9f1ad541 | 626 | static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 627 | const char *fmt, ...) |
f2561fda MM |
628 | { |
629 | va_list ap; | |
630 | struct imap_cmd *cmdp; | |
631 | ||
95c53908 RS |
632 | va_start(ap, fmt); |
633 | cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
634 | va_end(ap); | |
f2561fda MM |
635 | if (!cmdp) |
636 | return DRV_STORE_BAD; | |
637 | ||
95c53908 | 638 | switch (get_cmd_result(ctx, cmdp)) { |
f2561fda MM |
639 | case RESP_BAD: return DRV_STORE_BAD; |
640 | case RESP_NO: return DRV_MSG_BAD; | |
641 | default: return DRV_OK; | |
642 | } | |
643 | } | |
644 | ||
9f1ad541 | 645 | static int is_atom(struct imap_list *list) |
f2561fda MM |
646 | { |
647 | return list && list->val && list->val != NIL && list->val != LIST; | |
648 | } | |
649 | ||
9f1ad541 | 650 | static int is_list(struct imap_list *list) |
f2561fda MM |
651 | { |
652 | return list && list->val == LIST; | |
653 | } | |
654 | ||
9f1ad541 | 655 | static void free_list(struct imap_list *list) |
f2561fda | 656 | { |
9f1ad541 | 657 | struct imap_list *tmp; |
f2561fda MM |
658 | |
659 | for (; list; list = tmp) { | |
660 | tmp = list->next; | |
95c53908 RS |
661 | if (is_list(list)) |
662 | free_list(list->child); | |
663 | else if (is_atom(list)) | |
664 | free(list->val); | |
665 | free(list); | |
f2561fda MM |
666 | } |
667 | } | |
668 | ||
9f1ad541 | 669 | static int parse_imap_list_l(struct imap *imap, char **sp, struct imap_list **curp, int level) |
f2561fda | 670 | { |
9f1ad541 | 671 | struct imap_list *cur; |
f2561fda MM |
672 | char *s = *sp, *p; |
673 | int n, bytes; | |
674 | ||
675 | for (;;) { | |
95c53908 | 676 | while (isspace((unsigned char)*s)) |
f2561fda MM |
677 | s++; |
678 | if (level && *s == ')') { | |
679 | s++; | |
680 | break; | |
681 | } | |
95c53908 | 682 | *curp = cur = xmalloc(sizeof(*cur)); |
f2561fda | 683 | curp = &cur->next; |
5142db69 | 684 | cur->val = NULL; /* for clean bail */ |
f2561fda MM |
685 | if (*s == '(') { |
686 | /* sublist */ | |
687 | s++; | |
688 | cur->val = LIST; | |
95c53908 | 689 | if (parse_imap_list_l(imap, &s, &cur->child, level + 1)) |
f2561fda MM |
690 | goto bail; |
691 | } else if (imap && *s == '{') { | |
692 | /* literal */ | |
95c53908 | 693 | bytes = cur->len = strtol(s + 1, &s, 10); |
f2561fda MM |
694 | if (*s != '}') |
695 | goto bail; | |
696 | ||
95c53908 | 697 | s = cur->val = xmalloc(cur->len); |
f2561fda MM |
698 | |
699 | /* dump whats left over in the input buffer */ | |
700 | n = imap->buf.bytes - imap->buf.offset; | |
701 | ||
702 | if (n > bytes) | |
703 | /* the entire message fit in the buffer */ | |
704 | n = bytes; | |
705 | ||
95c53908 | 706 | memcpy(s, imap->buf.buf + imap->buf.offset, n); |
f2561fda MM |
707 | s += n; |
708 | bytes -= n; | |
709 | ||
710 | /* mark that we used part of the buffer */ | |
711 | imap->buf.offset += n; | |
712 | ||
713 | /* now read the rest of the message */ | |
714 | while (bytes > 0) { | |
95c53908 | 715 | if ((n = socket_read(&imap->buf.sock, s, bytes)) <= 0) |
f2561fda MM |
716 | goto bail; |
717 | s += n; | |
718 | bytes -= n; | |
719 | } | |
720 | ||
95c53908 | 721 | if (buffer_gets(&imap->buf, &s)) |
f2561fda MM |
722 | goto bail; |
723 | } else if (*s == '"') { | |
724 | /* quoted string */ | |
725 | s++; | |
726 | p = s; | |
727 | for (; *s != '"'; s++) | |
728 | if (!*s) | |
729 | goto bail; | |
730 | cur->len = s - p; | |
731 | s++; | |
182af834 | 732 | cur->val = xmemdupz(p, cur->len); |
f2561fda MM |
733 | } else { |
734 | /* atom */ | |
735 | p = s; | |
95c53908 | 736 | for (; *s && !isspace((unsigned char)*s); s++) |
f2561fda MM |
737 | if (level && *s == ')') |
738 | break; | |
739 | cur->len = s - p; | |
9f1ad541 | 740 | if (cur->len == 3 && !memcmp("NIL", p, 3)) |
f2561fda | 741 | cur->val = NIL; |
9f1ad541 | 742 | else |
182af834 | 743 | cur->val = xmemdupz(p, cur->len); |
f2561fda MM |
744 | } |
745 | ||
746 | if (!level) | |
747 | break; | |
748 | if (!*s) | |
749 | goto bail; | |
750 | } | |
751 | *sp = s; | |
5142db69 | 752 | *curp = NULL; |
f2561fda MM |
753 | return 0; |
754 | ||
9f1ad541 | 755 | bail: |
5142db69 | 756 | *curp = NULL; |
f2561fda MM |
757 | return -1; |
758 | } | |
759 | ||
9f1ad541 | 760 | static struct imap_list *parse_imap_list(struct imap *imap, char **sp) |
f2561fda | 761 | { |
9f1ad541 | 762 | struct imap_list *head; |
f2561fda | 763 | |
95c53908 | 764 | if (!parse_imap_list_l(imap, sp, &head, 0)) |
f2561fda | 765 | return head; |
95c53908 | 766 | free_list(head); |
f2561fda MM |
767 | return NULL; |
768 | } | |
769 | ||
9f1ad541 | 770 | static struct imap_list *parse_list(char **sp) |
f2561fda | 771 | { |
95c53908 | 772 | return parse_imap_list(NULL, sp); |
f2561fda MM |
773 | } |
774 | ||
9f1ad541 | 775 | static void parse_capability(struct imap *imap, char *cmd) |
f2561fda MM |
776 | { |
777 | char *arg; | |
778 | unsigned i; | |
779 | ||
780 | imap->caps = 0x80000000; | |
95c53908 | 781 | while ((arg = next_arg(&cmd))) |
f2561fda | 782 | for (i = 0; i < ARRAY_SIZE(cap_list); i++) |
95c53908 | 783 | if (!strcmp(cap_list[i], arg)) |
f2561fda MM |
784 | imap->caps |= 1 << i; |
785 | imap->rcaps = imap->caps; | |
786 | } | |
787 | ||
9f1ad541 | 788 | static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 789 | char *s) |
f2561fda | 790 | { |
9f1ad541 | 791 | struct imap *imap = ctx->imap; |
f2561fda MM |
792 | char *arg, *p; |
793 | ||
794 | if (*s != '[') | |
795 | return RESP_OK; /* no response code */ | |
796 | s++; | |
95c53908 RS |
797 | if (!(p = strchr(s, ']'))) { |
798 | fprintf(stderr, "IMAP error: malformed response code\n"); | |
f2561fda MM |
799 | return RESP_BAD; |
800 | } | |
801 | *p++ = 0; | |
95c53908 RS |
802 | arg = next_arg(&s); |
803 | if (!strcmp("UIDVALIDITY", arg)) { | |
804 | if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg))) { | |
805 | fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n"); | |
f2561fda MM |
806 | return RESP_BAD; |
807 | } | |
95c53908 RS |
808 | } else if (!strcmp("UIDNEXT", arg)) { |
809 | if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) { | |
810 | fprintf(stderr, "IMAP error: malformed NEXTUID status\n"); | |
f2561fda MM |
811 | return RESP_BAD; |
812 | } | |
95c53908 RS |
813 | } else if (!strcmp("CAPABILITY", arg)) { |
814 | parse_capability(imap, s); | |
815 | } else if (!strcmp("ALERT", arg)) { | |
f2561fda MM |
816 | /* RFC2060 says that these messages MUST be displayed |
817 | * to the user | |
818 | */ | |
95c53908 RS |
819 | for (; isspace((unsigned char)*p); p++); |
820 | fprintf(stderr, "*** IMAP ALERT *** %s\n", p); | |
821 | } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) { | |
822 | if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg)) || | |
9f1ad541 | 823 | !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) { |
95c53908 | 824 | fprintf(stderr, "IMAP error: malformed APPENDUID status\n"); |
f2561fda MM |
825 | return RESP_BAD; |
826 | } | |
827 | } | |
828 | return RESP_OK; | |
829 | } | |
830 | ||
9f1ad541 | 831 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd) |
f2561fda | 832 | { |
9f1ad541 | 833 | struct imap *imap = ctx->imap; |
f2561fda MM |
834 | struct imap_cmd *cmdp, **pcmdp, *ncmdp; |
835 | char *cmd, *arg, *arg1, *p; | |
836 | int n, resp, resp2, tag; | |
837 | ||
838 | for (;;) { | |
95c53908 | 839 | if (buffer_gets(&imap->buf, &cmd)) |
f2561fda MM |
840 | return RESP_BAD; |
841 | ||
95c53908 | 842 | arg = next_arg(&cmd); |
f2561fda | 843 | if (*arg == '*') { |
95c53908 | 844 | arg = next_arg(&cmd); |
f2561fda | 845 | if (!arg) { |
95c53908 | 846 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
847 | return RESP_BAD; |
848 | } | |
849 | ||
95c53908 RS |
850 | if (!strcmp("NAMESPACE", arg)) { |
851 | imap->ns_personal = parse_list(&cmd); | |
852 | imap->ns_other = parse_list(&cmd); | |
853 | imap->ns_shared = parse_list(&cmd); | |
854 | } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) || | |
855 | !strcmp("NO", arg) || !strcmp("BYE", arg)) { | |
856 | if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK) | |
f2561fda | 857 | return resp; |
95c53908 RS |
858 | } else if (!strcmp("CAPABILITY", arg)) |
859 | parse_capability(imap, cmd); | |
860 | else if ((arg1 = next_arg(&cmd))) { | |
861 | if (!strcmp("EXISTS", arg1)) | |
862 | ctx->gen.count = atoi(arg); | |
863 | else if (!strcmp("RECENT", arg1)) | |
864 | ctx->gen.recent = atoi(arg); | |
f2561fda | 865 | } else { |
95c53908 | 866 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
867 | return RESP_BAD; |
868 | } | |
869 | } else if (!imap->in_progress) { | |
95c53908 | 870 | fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : ""); |
f2561fda MM |
871 | return RESP_BAD; |
872 | } else if (*arg == '+') { | |
873 | /* This can happen only with the last command underway, as | |
874 | it enforces a round-trip. */ | |
875 | cmdp = (struct imap_cmd *)((char *)imap->in_progress_append - | |
876 | offsetof(struct imap_cmd, next)); | |
877 | if (cmdp->cb.data) { | |
95c53908 RS |
878 | n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen); |
879 | free(cmdp->cb.data); | |
5142db69 | 880 | cmdp->cb.data = NULL; |
f2561fda MM |
881 | if (n != (int)cmdp->cb.dlen) |
882 | return RESP_BAD; | |
883 | } else if (cmdp->cb.cont) { | |
95c53908 | 884 | if (cmdp->cb.cont(ctx, cmdp, cmd)) |
f2561fda MM |
885 | return RESP_BAD; |
886 | } else { | |
95c53908 | 887 | fprintf(stderr, "IMAP error: unexpected command continuation request\n"); |
f2561fda MM |
888 | return RESP_BAD; |
889 | } | |
95c53908 | 890 | if (socket_write(&imap->buf.sock, "\r\n", 2) != 2) |
f2561fda MM |
891 | return RESP_BAD; |
892 | if (!cmdp->cb.cont) | |
893 | imap->literal_pending = 0; | |
894 | if (!tcmd) | |
895 | return DRV_OK; | |
896 | } else { | |
95c53908 | 897 | tag = atoi(arg); |
f2561fda MM |
898 | for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next) |
899 | if (cmdp->tag == tag) | |
900 | goto gottag; | |
95c53908 | 901 | fprintf(stderr, "IMAP error: unexpected tag %s\n", arg); |
f2561fda | 902 | return RESP_BAD; |
9f1ad541 | 903 | gottag: |
f2561fda MM |
904 | if (!(*pcmdp = cmdp->next)) |
905 | imap->in_progress_append = pcmdp; | |
906 | imap->num_in_progress--; | |
907 | if (cmdp->cb.cont || cmdp->cb.data) | |
908 | imap->literal_pending = 0; | |
95c53908 RS |
909 | arg = next_arg(&cmd); |
910 | if (!strcmp("OK", arg)) | |
f2561fda MM |
911 | resp = DRV_OK; |
912 | else { | |
95c53908 RS |
913 | if (!strcmp("NO", arg)) { |
914 | if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */ | |
915 | p = strchr(cmdp->cmd, '"'); | |
916 | if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", strchr(p + 1, '"') - p + 1, p)) { | |
f2561fda MM |
917 | resp = RESP_BAD; |
918 | goto normal; | |
919 | } | |
920 | /* not waiting here violates the spec, but a server that does not | |
921 | grok this nonetheless violates it too. */ | |
922 | cmdp->cb.create = 0; | |
95c53908 | 923 | if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) { |
f2561fda MM |
924 | resp = RESP_BAD; |
925 | goto normal; | |
926 | } | |
95c53908 RS |
927 | free(cmdp->cmd); |
928 | free(cmdp); | |
f2561fda MM |
929 | if (!tcmd) |
930 | return 0; /* ignored */ | |
931 | if (cmdp == tcmd) | |
932 | tcmd = ncmdp; | |
933 | continue; | |
934 | } | |
935 | resp = RESP_NO; | |
95c53908 | 936 | } else /*if (!strcmp("BAD", arg))*/ |
f2561fda | 937 | resp = RESP_BAD; |
95c53908 RS |
938 | fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n", |
939 | memcmp(cmdp->cmd, "LOGIN", 5) ? | |
f2561fda MM |
940 | cmdp->cmd : "LOGIN <user> <pass>", |
941 | arg, cmd ? cmd : ""); | |
942 | } | |
95c53908 | 943 | if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp) |
f2561fda | 944 | resp = resp2; |
9f1ad541 | 945 | normal: |
f2561fda | 946 | if (cmdp->cb.done) |
95c53908 RS |
947 | cmdp->cb.done(ctx, cmdp, resp); |
948 | free(cmdp->cb.data); | |
949 | free(cmdp->cmd); | |
950 | free(cmdp); | |
f2561fda MM |
951 | if (!tcmd || tcmd == cmdp) |
952 | return resp; | |
953 | } | |
954 | } | |
955 | /* not reached */ | |
956 | } | |
957 | ||
9f1ad541 | 958 | static void imap_close_server(struct imap_store *ictx) |
f2561fda | 959 | { |
9f1ad541 | 960 | struct imap *imap = ictx->imap; |
f2561fda MM |
961 | |
962 | if (imap->buf.sock.fd != -1) { | |
95c53908 RS |
963 | imap_exec(ictx, NULL, "LOGOUT"); |
964 | socket_shutdown(&imap->buf.sock); | |
f2561fda | 965 | } |
95c53908 RS |
966 | free_list(imap->ns_personal); |
967 | free_list(imap->ns_other); | |
968 | free_list(imap->ns_shared); | |
969 | free(imap); | |
f2561fda MM |
970 | } |
971 | ||
9f1ad541 | 972 | static void imap_close_store(struct store *ctx) |
f2561fda | 973 | { |
9f1ad541 | 974 | imap_close_server((struct imap_store *)ctx); |
95c53908 RS |
975 | free_generic_messages(ctx->msgs); |
976 | free(ctx); | |
f2561fda MM |
977 | } |
978 | ||
9f1ad541 | 979 | static struct store *imap_open_store(struct imap_server_conf *srvc) |
f2561fda | 980 | { |
9f1ad541 JH |
981 | struct imap_store *ctx; |
982 | struct imap *imap; | |
f2561fda MM |
983 | char *arg, *rsp; |
984 | struct hostent *he; | |
985 | struct sockaddr_in addr; | |
986 | int s, a[2], preauth; | |
c9bc159d | 987 | pid_t pid; |
f2561fda | 988 | |
95c53908 | 989 | ctx = xcalloc(sizeof(*ctx), 1); |
f2561fda | 990 | |
95c53908 | 991 | ctx->imap = imap = xcalloc(sizeof(*imap), 1); |
f2561fda MM |
992 | imap->buf.sock.fd = -1; |
993 | imap->in_progress_append = &imap->in_progress; | |
994 | ||
995 | /* open connection to IMAP server */ | |
996 | ||
997 | if (srvc->tunnel) { | |
95c53908 | 998 | imap_info("Starting tunnel '%s'... ", srvc->tunnel); |
f2561fda | 999 | |
95c53908 RS |
1000 | if (socketpair(PF_UNIX, SOCK_STREAM, 0, a)) { |
1001 | perror("socketpair"); | |
1002 | exit(1); | |
f2561fda MM |
1003 | } |
1004 | ||
c9bc159d PD |
1005 | pid = fork(); |
1006 | if (pid < 0) | |
95c53908 | 1007 | _exit(127); |
c9bc159d | 1008 | if (!pid) { |
95c53908 RS |
1009 | if (dup2(a[0], 0) == -1 || dup2(a[0], 1) == -1) |
1010 | _exit(127); | |
1011 | close(a[0]); | |
1012 | close(a[1]); | |
1013 | execl("/bin/sh", "sh", "-c", srvc->tunnel, NULL); | |
1014 | _exit(127); | |
f2561fda MM |
1015 | } |
1016 | ||
95c53908 | 1017 | close(a[0]); |
f2561fda MM |
1018 | |
1019 | imap->buf.sock.fd = a[1]; | |
1020 | ||
95c53908 | 1021 | imap_info("ok\n"); |
f2561fda | 1022 | } else { |
95c53908 RS |
1023 | memset(&addr, 0, sizeof(addr)); |
1024 | addr.sin_port = htons(srvc->port); | |
f2561fda MM |
1025 | addr.sin_family = AF_INET; |
1026 | ||
95c53908 RS |
1027 | imap_info("Resolving %s... ", srvc->host); |
1028 | he = gethostbyname(srvc->host); | |
f2561fda | 1029 | if (!he) { |
95c53908 | 1030 | perror("gethostbyname"); |
f2561fda MM |
1031 | goto bail; |
1032 | } | |
95c53908 | 1033 | imap_info("ok\n"); |
f2561fda MM |
1034 | |
1035 | addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]); | |
1036 | ||
95c53908 | 1037 | s = socket(PF_INET, SOCK_STREAM, 0); |
f2561fda | 1038 | |
95c53908 RS |
1039 | imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); |
1040 | if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) { | |
1041 | close(s); | |
1042 | perror("connect"); | |
f2561fda MM |
1043 | goto bail; |
1044 | } | |
f2561fda MM |
1045 | |
1046 | imap->buf.sock.fd = s; | |
1047 | ||
684ec6c6 RS |
1048 | if (srvc->use_ssl && |
1049 | ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) { | |
1050 | close(s); | |
1051 | goto bail; | |
1052 | } | |
95c53908 | 1053 | imap_info("ok\n"); |
f2561fda MM |
1054 | } |
1055 | ||
1056 | /* read the greeting string */ | |
95c53908 RS |
1057 | if (buffer_gets(&imap->buf, &rsp)) { |
1058 | fprintf(stderr, "IMAP error: no greeting response\n"); | |
f2561fda MM |
1059 | goto bail; |
1060 | } | |
95c53908 RS |
1061 | arg = next_arg(&rsp); |
1062 | if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) { | |
1063 | fprintf(stderr, "IMAP error: invalid greeting response\n"); | |
f2561fda MM |
1064 | goto bail; |
1065 | } | |
1066 | preauth = 0; | |
95c53908 | 1067 | if (!strcmp("PREAUTH", arg)) |
f2561fda | 1068 | preauth = 1; |
95c53908 RS |
1069 | else if (strcmp("OK", arg) != 0) { |
1070 | fprintf(stderr, "IMAP error: unknown greeting response\n"); | |
f2561fda MM |
1071 | goto bail; |
1072 | } | |
95c53908 RS |
1073 | parse_response_code(ctx, NULL, rsp); |
1074 | if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) | |
f2561fda MM |
1075 | goto bail; |
1076 | ||
1077 | if (!preauth) { | |
684ec6c6 RS |
1078 | #ifndef NO_OPENSSL |
1079 | if (!srvc->use_ssl && CAP(STARTTLS)) { | |
1080 | if (imap_exec(ctx, 0, "STARTTLS") != RESP_OK) | |
1081 | goto bail; | |
1082 | if (ssl_socket_connect(&imap->buf.sock, 1, | |
1083 | srvc->ssl_verify)) | |
1084 | goto bail; | |
1085 | /* capabilities may have changed, so get the new capabilities */ | |
1086 | if (imap_exec(ctx, 0, "CAPABILITY") != RESP_OK) | |
1087 | goto bail; | |
1088 | } | |
1089 | #endif | |
95c53908 | 1090 | imap_info("Logging in...\n"); |
f2561fda | 1091 | if (!srvc->user) { |
95c53908 | 1092 | fprintf(stderr, "Skipping server %s, no user\n", srvc->host); |
f2561fda MM |
1093 | goto bail; |
1094 | } | |
1095 | if (!srvc->pass) { | |
1096 | char prompt[80]; | |
95c53908 RS |
1097 | sprintf(prompt, "Password (%s@%s): ", srvc->user, srvc->host); |
1098 | arg = getpass(prompt); | |
f2561fda | 1099 | if (!arg) { |
95c53908 RS |
1100 | perror("getpass"); |
1101 | exit(1); | |
f2561fda MM |
1102 | } |
1103 | if (!*arg) { | |
95c53908 | 1104 | fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host); |
f2561fda MM |
1105 | goto bail; |
1106 | } | |
1107 | /* | |
1108 | * getpass() returns a pointer to a static buffer. make a copy | |
1109 | * for long term storage. | |
1110 | */ | |
95c53908 | 1111 | srvc->pass = xstrdup(arg); |
f2561fda MM |
1112 | } |
1113 | if (CAP(NOLOGIN)) { | |
95c53908 | 1114 | fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host); |
f2561fda MM |
1115 | goto bail; |
1116 | } | |
684ec6c6 | 1117 | if (!imap->buf.sock.ssl) |
9f1ad541 JH |
1118 | imap_warn("*** IMAP Warning *** Password is being " |
1119 | "sent in the clear\n"); | |
95c53908 RS |
1120 | if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) { |
1121 | fprintf(stderr, "IMAP error: LOGIN failed\n"); | |
f2561fda MM |
1122 | goto bail; |
1123 | } | |
1124 | } /* !preauth */ | |
1125 | ||
1126 | ctx->prefix = ""; | |
1127 | ctx->trashnc = 1; | |
9f1ad541 | 1128 | return (struct store *)ctx; |
f2561fda | 1129 | |
9f1ad541 | 1130 | bail: |
95c53908 | 1131 | imap_close_store(&ctx->gen); |
5142db69 | 1132 | return NULL; |
f2561fda MM |
1133 | } |
1134 | ||
95c53908 | 1135 | static int imap_make_flags(int flags, char *buf) |
f2561fda MM |
1136 | { |
1137 | const char *s; | |
1138 | unsigned i, d; | |
1139 | ||
1140 | for (i = d = 0; i < ARRAY_SIZE(Flags); i++) | |
1141 | if (flags & (1 << i)) { | |
1142 | buf[d++] = ' '; | |
1143 | buf[d++] = '\\'; | |
1144 | for (s = Flags[i]; *s; s++) | |
1145 | buf[d++] = *s; | |
1146 | } | |
1147 | buf[0] = '('; | |
1148 | buf[d++] = ')'; | |
1149 | return d; | |
1150 | } | |
1151 | ||
1152 | #define TUIDL 8 | |
1153 | ||
9f1ad541 | 1154 | static int imap_store_msg(struct store *gctx, struct msg_data *data, int *uid) |
f2561fda | 1155 | { |
9f1ad541 JH |
1156 | struct imap_store *ctx = (struct imap_store *)gctx; |
1157 | struct imap *imap = ctx->imap; | |
f2561fda MM |
1158 | struct imap_cmd_cb cb; |
1159 | char *fmap, *buf; | |
1160 | const char *prefix, *box; | |
1161 | int ret, i, j, d, len, extra, nocr; | |
1162 | int start, sbreak = 0, ebreak = 0; | |
1163 | char flagstr[128], tuid[TUIDL * 2 + 1]; | |
1164 | ||
95c53908 | 1165 | memset(&cb, 0, sizeof(cb)); |
f2561fda MM |
1166 | |
1167 | fmap = data->data; | |
1168 | len = data->len; | |
1169 | nocr = !data->crlf; | |
1170 | extra = 0, i = 0; | |
1171 | if (!CAP(UIDPLUS) && uid) { | |
9f1ad541 | 1172 | nloop: |
f2561fda MM |
1173 | start = i; |
1174 | while (i < len) | |
1175 | if (fmap[i++] == '\n') { | |
1176 | extra += nocr; | |
1177 | if (i - 2 + nocr == start) { | |
1178 | sbreak = ebreak = i - 2 + nocr; | |
1179 | goto mktid; | |
1180 | } | |
95c53908 | 1181 | if (!memcmp(fmap + start, "X-TUID: ", 8)) { |
f2561fda MM |
1182 | extra -= (ebreak = i) - (sbreak = start) + nocr; |
1183 | goto mktid; | |
1184 | } | |
1185 | goto nloop; | |
1186 | } | |
1187 | /* invalid message */ | |
95c53908 | 1188 | free(fmap); |
f2561fda | 1189 | return DRV_MSG_BAD; |
9f1ad541 | 1190 | mktid: |
f2561fda | 1191 | for (j = 0; j < TUIDL; j++) |
95c53908 | 1192 | sprintf(tuid + j * 2, "%02x", arc4_getbyte()); |
f2561fda MM |
1193 | extra += 8 + TUIDL * 2 + 2; |
1194 | } | |
1195 | if (nocr) | |
1196 | for (; i < len; i++) | |
1197 | if (fmap[i] == '\n') | |
1198 | extra++; | |
1199 | ||
1200 | cb.dlen = len + extra; | |
95c53908 | 1201 | buf = cb.data = xmalloc(cb.dlen); |
f2561fda MM |
1202 | i = 0; |
1203 | if (!CAP(UIDPLUS) && uid) { | |
1204 | if (nocr) { | |
1205 | for (; i < sbreak; i++) | |
1206 | if (fmap[i] == '\n') { | |
1207 | *buf++ = '\r'; | |
1208 | *buf++ = '\n'; | |
1209 | } else | |
1210 | *buf++ = fmap[i]; | |
1211 | } else { | |
95c53908 | 1212 | memcpy(buf, fmap, sbreak); |
f2561fda MM |
1213 | buf += sbreak; |
1214 | } | |
95c53908 | 1215 | memcpy(buf, "X-TUID: ", 8); |
f2561fda | 1216 | buf += 8; |
95c53908 | 1217 | memcpy(buf, tuid, TUIDL * 2); |
f2561fda MM |
1218 | buf += TUIDL * 2; |
1219 | *buf++ = '\r'; | |
1220 | *buf++ = '\n'; | |
1221 | i = ebreak; | |
1222 | } | |
1223 | if (nocr) { | |
1224 | for (; i < len; i++) | |
1225 | if (fmap[i] == '\n') { | |
1226 | *buf++ = '\r'; | |
1227 | *buf++ = '\n'; | |
1228 | } else | |
1229 | *buf++ = fmap[i]; | |
1230 | } else | |
95c53908 | 1231 | memcpy(buf, fmap + i, len - i); |
f2561fda | 1232 | |
95c53908 | 1233 | free(fmap); |
f2561fda MM |
1234 | |
1235 | d = 0; | |
1236 | if (data->flags) { | |
95c53908 | 1237 | d = imap_make_flags(data->flags, flagstr); |
f2561fda MM |
1238 | flagstr[d++] = ' '; |
1239 | } | |
1240 | flagstr[d] = 0; | |
1241 | ||
1242 | if (!uid) { | |
1243 | box = gctx->conf->trash; | |
1244 | prefix = ctx->prefix; | |
1245 | cb.create = 1; | |
1246 | if (ctx->trashnc) | |
1247 | imap->caps = imap->rcaps & ~(1 << LITERALPLUS); | |
1248 | } else { | |
1249 | box = gctx->name; | |
95c53908 | 1250 | prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix; |
f2561fda MM |
1251 | cb.create = 0; |
1252 | } | |
1253 | cb.ctx = uid; | |
95c53908 | 1254 | ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" %s", prefix, box, flagstr); |
f2561fda MM |
1255 | imap->caps = imap->rcaps; |
1256 | if (ret != DRV_OK) | |
1257 | return ret; | |
1258 | if (!uid) | |
1259 | ctx->trashnc = 0; | |
1260 | else | |
1261 | gctx->count++; | |
1262 | ||
1263 | return DRV_OK; | |
1264 | } | |
1265 | ||
1266 | #define CHUNKSIZE 0x1000 | |
1267 | ||
9f1ad541 | 1268 | static int read_message(FILE *f, struct msg_data *msg) |
f2561fda | 1269 | { |
f285a2d7 | 1270 | struct strbuf buf = STRBUF_INIT; |
f2561fda | 1271 | |
635d043f | 1272 | memset(msg, 0, sizeof(*msg)); |
635d043f PH |
1273 | |
1274 | do { | |
1275 | if (strbuf_fread(&buf, CHUNKSIZE, f) <= 0) | |
f2561fda | 1276 | break; |
635d043f PH |
1277 | } while (!feof(f)); |
1278 | ||
1279 | msg->len = buf.len; | |
b315c5c0 | 1280 | msg->data = strbuf_detach(&buf, NULL); |
f2561fda MM |
1281 | return msg->len; |
1282 | } | |
1283 | ||
9f1ad541 | 1284 | static int count_messages(struct msg_data *msg) |
f2561fda MM |
1285 | { |
1286 | int count = 0; | |
1287 | char *p = msg->data; | |
1288 | ||
1289 | while (1) { | |
1968d77d | 1290 | if (!prefixcmp(p, "From ")) { |
f2561fda MM |
1291 | count++; |
1292 | p += 5; | |
1293 | } | |
95c53908 | 1294 | p = strstr(p+5, "\nFrom "); |
f2561fda MM |
1295 | if (!p) |
1296 | break; | |
1297 | p++; | |
1298 | } | |
1299 | return count; | |
1300 | } | |
1301 | ||
9f1ad541 | 1302 | static int split_msg(struct msg_data *all_msgs, struct msg_data *msg, int *ofs) |
f2561fda MM |
1303 | { |
1304 | char *p, *data; | |
1305 | ||
95c53908 | 1306 | memset(msg, 0, sizeof *msg); |
f2561fda MM |
1307 | if (*ofs >= all_msgs->len) |
1308 | return 0; | |
1309 | ||
95c53908 | 1310 | data = &all_msgs->data[*ofs]; |
f2561fda MM |
1311 | msg->len = all_msgs->len - *ofs; |
1312 | ||
1968d77d | 1313 | if (msg->len < 5 || prefixcmp(data, "From ")) |
f2561fda MM |
1314 | return 0; |
1315 | ||
95c53908 | 1316 | p = strchr(data, '\n'); |
e0b08307 MA |
1317 | if (p) { |
1318 | p = &p[1]; | |
1319 | msg->len -= p-data; | |
1320 | *ofs += p-data; | |
1321 | data = p; | |
1322 | } | |
1323 | ||
95c53908 | 1324 | p = strstr(data, "\nFrom "); |
f2561fda MM |
1325 | if (p) |
1326 | msg->len = &p[1] - data; | |
1327 | ||
182af834 | 1328 | msg->data = xmemdupz(data, msg->len); |
f2561fda | 1329 | *ofs += msg->len; |
a6080a0a | 1330 | return 1; |
f2561fda MM |
1331 | } |
1332 | ||
9f1ad541 | 1333 | static struct imap_server_conf server = { |
f2561fda MM |
1334 | NULL, /* name */ |
1335 | NULL, /* tunnel */ | |
1336 | NULL, /* host */ | |
1337 | 0, /* port */ | |
1338 | NULL, /* user */ | |
1339 | NULL, /* pass */ | |
684ec6c6 RS |
1340 | 0, /* use_ssl */ |
1341 | 1, /* ssl_verify */ | |
f2561fda MM |
1342 | }; |
1343 | ||
1344 | static char *imap_folder; | |
1345 | ||
95c53908 | 1346 | static int git_imap_config(const char *key, const char *val, void *cb) |
f2561fda MM |
1347 | { |
1348 | char imap_key[] = "imap."; | |
1349 | ||
95c53908 | 1350 | if (strncmp(key, imap_key, sizeof imap_key - 1)) |
f2561fda | 1351 | return 0; |
3c17c34a JH |
1352 | |
1353 | if (!val) | |
1354 | return config_error_nonbool(key); | |
1355 | ||
f2561fda MM |
1356 | key += sizeof imap_key - 1; |
1357 | ||
95c53908 RS |
1358 | if (!strcmp("folder", key)) { |
1359 | imap_folder = xstrdup(val); | |
1360 | } else if (!strcmp("host", key)) { | |
684ec6c6 RS |
1361 | if (!prefixcmp(val, "imap:")) |
1362 | val += 5; | |
1363 | else if (!prefixcmp(val, "imaps:")) { | |
1364 | val += 6; | |
1365 | server.use_ssl = 1; | |
f2561fda | 1366 | } |
1968d77d | 1367 | if (!prefixcmp(val, "//")) |
f2561fda | 1368 | val += 2; |
95c53908 | 1369 | server.host = xstrdup(val); |
9f1ad541 | 1370 | } else if (!strcmp("user", key)) |
95c53908 RS |
1371 | server.user = xstrdup(val); |
1372 | else if (!strcmp("pass", key)) | |
1373 | server.pass = xstrdup(val); | |
1374 | else if (!strcmp("port", key)) | |
1375 | server.port = git_config_int(key, val); | |
1376 | else if (!strcmp("tunnel", key)) | |
1377 | server.tunnel = xstrdup(val); | |
1378 | else if (!strcmp("sslverify", key)) | |
1379 | server.ssl_verify = git_config_bool(key, val); | |
f2561fda MM |
1380 | return 0; |
1381 | } | |
1382 | ||
95c53908 | 1383 | int main(int argc, char **argv) |
f2561fda | 1384 | { |
9f1ad541 JH |
1385 | struct msg_data all_msgs, msg; |
1386 | struct store *ctx = NULL; | |
f2561fda MM |
1387 | int uid = 0; |
1388 | int ofs = 0; | |
1389 | int r; | |
1390 | int total, n = 0; | |
a0406b94 | 1391 | int nongit_ok; |
f2561fda | 1392 | |
2fb3f6db SP |
1393 | git_extract_argv0_path(argv[0]); |
1394 | ||
f2561fda MM |
1395 | /* init the random number generator */ |
1396 | arc4_init(); | |
1397 | ||
a0406b94 | 1398 | setup_git_directory_gently(&nongit_ok); |
ef90d6d4 | 1399 | git_config(git_imap_config, NULL); |
f2561fda | 1400 | |
684ec6c6 RS |
1401 | if (!server.port) |
1402 | server.port = server.use_ssl ? 993 : 143; | |
1403 | ||
f2561fda | 1404 | if (!imap_folder) { |
95c53908 | 1405 | fprintf(stderr, "no imap store specified\n"); |
f2561fda MM |
1406 | return 1; |
1407 | } | |
5b67b8e2 | 1408 | if (!server.host) { |
34b5cd1f | 1409 | if (!server.tunnel) { |
95c53908 | 1410 | fprintf(stderr, "no imap host specified\n"); |
34b5cd1f JK |
1411 | return 1; |
1412 | } | |
1413 | server.host = "tunnel"; | |
5b67b8e2 | 1414 | } |
f2561fda MM |
1415 | |
1416 | /* read the messages */ | |
95c53908 | 1417 | if (!read_message(stdin, &all_msgs)) { |
9f1ad541 | 1418 | fprintf(stderr, "nothing to send\n"); |
f2561fda MM |
1419 | return 1; |
1420 | } | |
1421 | ||
95c53908 | 1422 | total = count_messages(&all_msgs); |
1cd88cc9 | 1423 | if (!total) { |
9f1ad541 | 1424 | fprintf(stderr, "no messages to send\n"); |
1cd88cc9 MM |
1425 | return 1; |
1426 | } | |
1427 | ||
f2561fda | 1428 | /* write it to the imap server */ |
95c53908 | 1429 | ctx = imap_open_store(&server); |
f2561fda | 1430 | if (!ctx) { |
9f1ad541 | 1431 | fprintf(stderr, "failed to open store\n"); |
f2561fda MM |
1432 | return 1; |
1433 | } | |
1434 | ||
9f1ad541 | 1435 | fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : ""); |
f2561fda MM |
1436 | ctx->name = imap_folder; |
1437 | while (1) { | |
1438 | unsigned percent = n * 100 / total; | |
95c53908 RS |
1439 | fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total); |
1440 | if (!split_msg(&all_msgs, &msg, &ofs)) | |
f2561fda | 1441 | break; |
95c53908 | 1442 | r = imap_store_msg(ctx, &msg, &uid); |
9f1ad541 JH |
1443 | if (r != DRV_OK) |
1444 | break; | |
f2561fda MM |
1445 | n++; |
1446 | } | |
95c53908 | 1447 | fprintf(stderr, "\n"); |
f2561fda | 1448 | |
95c53908 | 1449 | imap_close_store(ctx); |
f2561fda MM |
1450 | |
1451 | return 0; | |
1452 | } |