imap-send: use separate read and write fds
[git/git.git] / imap-send.c
CommitLineData
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
28typedef void *SSL;
29#endif
f2561fda 30
9f1ad541 31struct 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 40struct string_list {
f2561fda
MM
41 struct string_list *next;
42 char string[1];
9f1ad541 43};
f2561fda 44
9f1ad541 45struct 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 56struct 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 67struct 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
75struct 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 89struct 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
101static int Verbose, Quiet;
102
95c53908
RS
103static void imap_info(const char *, ...);
104static void imap_warn(const char *, ...);
f2561fda 105
95c53908 106static char *next_arg(char **);
f2561fda 107
9f1ad541 108static void free_generic_messages(struct message *);
f2561fda 109
95c53908 110static int nfsnprintf(char *buf, int blen, const char *fmt, ...);
f2561fda 111
19247e55
PH
112static 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
9f1ad541 126struct imap_server_conf {
f2561fda
MM
127 char *name;
128 char *tunnel;
129 char *host;
130 int port;
131 char *user;
132 char *pass;
684ec6c6
RS
133 int use_ssl;
134 int ssl_verify;
c64d84f1 135 int use_html;
9f1ad541 136};
f2561fda 137
9f1ad541
JH
138struct imap_store_conf {
139 struct store_conf gen;
140 struct imap_server_conf *server;
f2561fda 141 unsigned use_namespace:1;
9f1ad541 142};
f2561fda 143
9f1ad541
JH
144#define NIL (void *)0x1
145#define LIST (void *)0x2
f2561fda 146
9f1ad541
JH
147struct imap_list {
148 struct imap_list *next, *child;
f2561fda
MM
149 char *val;
150 int len;
9f1ad541 151};
f2561fda 152
9f1ad541 153struct imap_socket {
7a7796e9 154 int fd[2];
684ec6c6 155 SSL *ssl;
9f1ad541 156};
f2561fda 157
9f1ad541
JH
158struct imap_buffer {
159 struct imap_socket sock;
f2561fda
MM
160 int bytes;
161 int offset;
162 char buf[1024];
9f1ad541 163};
f2561fda
MM
164
165struct imap_cmd;
166
9f1ad541 167struct imap {
f2561fda 168 int uidnext; /* from SELECT responses */
9f1ad541 169 struct imap_list *ns_personal, *ns_other, *ns_shared; /* NAMESPACE info */
f2561fda
MM
170 unsigned caps, rcaps; /* CAPABILITY results */
171 /* command queue */
172 int nexttag, num_in_progress, literal_pending;
173 struct imap_cmd *in_progress, **in_progress_append;
9f1ad541
JH
174 struct imap_buffer buf; /* this is BIG, so put it last */
175};
f2561fda 176
9f1ad541
JH
177struct imap_store {
178 struct store gen;
f2561fda 179 int uidvalidity;
9f1ad541 180 struct imap *imap;
f2561fda
MM
181 const char *prefix;
182 unsigned /*currentnc:1,*/ trashnc:1;
9f1ad541 183};
f2561fda
MM
184
185struct imap_cmd_cb {
9f1ad541
JH
186 int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt);
187 void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response);
f2561fda
MM
188 void *ctx;
189 char *data;
190 int dlen;
191 int uid;
192 unsigned create:1, trycreate:1;
193};
194
195struct imap_cmd {
196 struct imap_cmd *next;
197 struct imap_cmd_cb cb;
198 char *cmd;
199 int tag;
200};
201
202#define CAP(cap) (imap->caps & (1 << (cap)))
203
204enum CAPABILITY {
205 NOLOGIN = 0,
206 UIDPLUS,
207 LITERALPLUS,
208 NAMESPACE,
684ec6c6 209 STARTTLS,
f2561fda
MM
210};
211
212static const char *cap_list[] = {
213 "LOGINDISABLED",
214 "UIDPLUS",
215 "LITERAL+",
216 "NAMESPACE",
684ec6c6 217 "STARTTLS",
f2561fda
MM
218};
219
220#define RESP_OK 0
221#define RESP_NO 1
222#define RESP_BAD 2
223
9f1ad541 224static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd);
f2561fda
MM
225
226
227static const char *Flags[] = {
228 "Draft",
229 "Flagged",
230 "Answered",
231 "Seen",
232 "Deleted",
233};
234
684ec6c6
RS
235#ifndef NO_OPENSSL
236static void ssl_socket_perror(const char *func)
237{
2af202be 238 fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL));
684ec6c6
RS
239}
240#endif
241
9f1ad541 242static void socket_perror(const char *func, struct imap_socket *sock, int ret)
f2561fda 243{
684ec6c6
RS
244#ifndef NO_OPENSSL
245 if (sock->ssl) {
246 int sslerr = SSL_get_error(sock->ssl, ret);
247 switch (sslerr) {
248 case SSL_ERROR_NONE:
249 break;
250 case SSL_ERROR_SYSCALL:
251 perror("SSL_connect");
252 break;
253 default:
254 ssl_socket_perror("SSL_connect");
255 break;
256 }
257 } else
258#endif
259 {
260 if (ret < 0)
261 perror(func);
262 else
263 fprintf(stderr, "%s: unexpected EOF\n", func);
264 }
265}
266
9f1ad541 267static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify)
684ec6c6
RS
268{
269#ifdef NO_OPENSSL
270 fprintf(stderr, "SSL requested but SSL support not compiled in\n");
271 return -1;
272#else
273 SSL_METHOD *meth;
274 SSL_CTX *ctx;
275 int ret;
276
277 SSL_library_init();
278 SSL_load_error_strings();
279
280 if (use_tls_only)
281 meth = TLSv1_method();
f2561fda 282 else
684ec6c6
RS
283 meth = SSLv23_method();
284
285 if (!meth) {
286 ssl_socket_perror("SSLv23_method");
287 return -1;
288 }
289
290 ctx = SSL_CTX_new(meth);
291
292 if (verify)
293 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
294
295 if (!SSL_CTX_set_default_verify_paths(ctx)) {
296 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
297 return -1;
298 }
299 sock->ssl = SSL_new(ctx);
300 if (!sock->ssl) {
301 ssl_socket_perror("SSL_new");
302 return -1;
303 }
7a7796e9
EFL
304 if (!SSL_set_rfd(sock->ssl, sock->fd[0])) {
305 ssl_socket_perror("SSL_set_rfd");
306 return -1;
307 }
308 if (!SSL_set_wfd(sock->ssl, sock->fd[1])) {
309 ssl_socket_perror("SSL_set_wfd");
684ec6c6
RS
310 return -1;
311 }
312
313 ret = SSL_connect(sock->ssl);
314 if (ret <= 0) {
315 socket_perror("SSL_connect", sock, ret);
316 return -1;
317 }
318
319 return 0;
320#endif
f2561fda
MM
321}
322
9f1ad541 323static int socket_read(struct imap_socket *sock, char *buf, int len)
f2561fda 324{
684ec6c6
RS
325 ssize_t n;
326#ifndef NO_OPENSSL
327 if (sock->ssl)
328 n = SSL_read(sock->ssl, buf, len);
329 else
330#endif
7a7796e9 331 n = xread(sock->fd[0], buf, len);
f2561fda 332 if (n <= 0) {
95c53908 333 socket_perror("read", sock, n);
7a7796e9
EFL
334 close(sock->fd[0]);
335 close(sock->fd[1]);
336 sock->fd[0] = sock->fd[1] = -1;
f2561fda
MM
337 }
338 return n;
339}
340
9f1ad541 341static int socket_write(struct imap_socket *sock, const char *buf, int len)
f2561fda 342{
684ec6c6
RS
343 int n;
344#ifndef NO_OPENSSL
345 if (sock->ssl)
346 n = SSL_write(sock->ssl, buf, len);
347 else
348#endif
7a7796e9 349 n = write_in_full(sock->fd[1], buf, len);
f2561fda 350 if (n != len) {
95c53908 351 socket_perror("write", sock, n);
7a7796e9
EFL
352 close(sock->fd[0]);
353 close(sock->fd[1]);
354 sock->fd[0] = sock->fd[1] = -1;
f2561fda
MM
355 }
356 return n;
357}
358
9f1ad541 359static void socket_shutdown(struct imap_socket *sock)
684ec6c6
RS
360{
361#ifndef NO_OPENSSL
362 if (sock->ssl) {
363 SSL_shutdown(sock->ssl);
364 SSL_free(sock->ssl);
365 }
366#endif
7a7796e9
EFL
367 close(sock->fd[0]);
368 close(sock->fd[1]);
684ec6c6
RS
369}
370
f2561fda 371/* simple line buffering */
9f1ad541 372static int buffer_gets(struct imap_buffer *b, char **s)
f2561fda
MM
373{
374 int n;
375 int start = b->offset;
376
377 *s = b->buf + start;
378
379 for (;;) {
380 /* make sure we have enough data to read the \r\n sequence */
381 if (b->offset + 1 >= b->bytes) {
382 if (start) {
383 /* shift down used bytes */
384 *s = b->buf;
385
95c53908 386 assert(start <= b->bytes);
f2561fda
MM
387 n = b->bytes - start;
388
389 if (n)
173a9cbe 390 memmove(b->buf, b->buf + start, n);
f2561fda
MM
391 b->offset -= start;
392 b->bytes = n;
393 start = 0;
394 }
395
95c53908
RS
396 n = socket_read(&b->sock, b->buf + b->bytes,
397 sizeof(b->buf) - b->bytes);
f2561fda
MM
398
399 if (n <= 0)
400 return -1;
401
402 b->bytes += n;
403 }
404
405 if (b->buf[b->offset] == '\r') {
95c53908 406 assert(b->offset + 1 < b->bytes);
f2561fda
MM
407 if (b->buf[b->offset + 1] == '\n') {
408 b->buf[b->offset] = 0; /* terminate the string */
409 b->offset += 2; /* next line */
410 if (Verbose)
95c53908 411 puts(*s);
f2561fda
MM
412 return 0;
413 }
414 }
415
416 b->offset++;
417 }
418 /* not reached */
419}
420
95c53908 421static void imap_info(const char *msg, ...)
f2561fda
MM
422{
423 va_list va;
424
425 if (!Quiet) {
95c53908
RS
426 va_start(va, msg);
427 vprintf(msg, va);
428 va_end(va);
429 fflush(stdout);
f2561fda
MM
430 }
431}
432
95c53908 433static void imap_warn(const char *msg, ...)
f2561fda
MM
434{
435 va_list va;
436
437 if (Quiet < 2) {
95c53908
RS
438 va_start(va, msg);
439 vfprintf(stderr, msg, va);
440 va_end(va);
f2561fda
MM
441 }
442}
443
95c53908 444static char *next_arg(char **s)
f2561fda
MM
445{
446 char *ret;
447
448 if (!s || !*s)
5142db69 449 return NULL;
95c53908 450 while (isspace((unsigned char) **s))
f2561fda
MM
451 (*s)++;
452 if (!**s) {
5142db69
RS
453 *s = NULL;
454 return NULL;
f2561fda
MM
455 }
456 if (**s == '"') {
457 ++*s;
458 ret = *s;
95c53908 459 *s = strchr(*s, '"');
f2561fda
MM
460 } else {
461 ret = *s;
95c53908 462 while (**s && !isspace((unsigned char) **s))
f2561fda
MM
463 (*s)++;
464 }
465 if (*s) {
466 if (**s)
467 *(*s)++ = 0;
468 if (!**s)
5142db69 469 *s = NULL;
f2561fda
MM
470 }
471 return ret;
472}
473
9f1ad541 474static void free_generic_messages(struct message *msgs)
f2561fda 475{
9f1ad541 476 struct message *tmsg;
f2561fda
MM
477
478 for (; msgs; msgs = tmsg) {
479 tmsg = msgs->next;
95c53908 480 free(msgs);
f2561fda
MM
481 }
482}
483
95c53908 484static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
f2561fda
MM
485{
486 int ret;
487 va_list va;
488
95c53908
RS
489 va_start(va, fmt);
490 if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
d7530708 491 die("Fatal: buffer too small. Please report a bug.");
95c53908 492 va_end(va);
f2561fda
MM
493 return ret;
494}
495
9f1ad541 496static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
95c53908
RS
497 struct imap_cmd_cb *cb,
498 const char *fmt, va_list ap)
f2561fda 499{
9f1ad541 500 struct imap *imap = ctx->imap;
f2561fda
MM
501 struct imap_cmd *cmd;
502 int n, bufl;
503 char buf[1024];
504
95c53908
RS
505 cmd = xmalloc(sizeof(struct imap_cmd));
506 nfvasprintf(&cmd->cmd, fmt, ap);
f2561fda
MM
507 cmd->tag = ++imap->nexttag;
508
509 if (cb)
510 cmd->cb = *cb;
511 else
95c53908 512 memset(&cmd->cb, 0, sizeof(cmd->cb));
f2561fda
MM
513
514 while (imap->literal_pending)
95c53908 515 get_cmd_result(ctx, NULL);
f2561fda 516
95c53908 517 bufl = nfsnprintf(buf, sizeof(buf), cmd->cb.data ? CAP(LITERALPLUS) ?
f2561fda 518 "%d %s{%d+}\r\n" : "%d %s{%d}\r\n" : "%d %s\r\n",
95c53908 519 cmd->tag, cmd->cmd, cmd->cb.dlen);
f2561fda
MM
520 if (Verbose) {
521 if (imap->num_in_progress)
95c53908
RS
522 printf("(%d in progress) ", imap->num_in_progress);
523 if (memcmp(cmd->cmd, "LOGIN", 5))
524 printf(">>> %s", buf);
f2561fda 525 else
95c53908 526 printf(">>> %d LOGIN <user> <pass>\n", cmd->tag);
f2561fda 527 }
95c53908
RS
528 if (socket_write(&imap->buf.sock, buf, bufl) != bufl) {
529 free(cmd->cmd);
530 free(cmd);
8e0f7003 531 if (cb)
95c53908 532 free(cb->data);
f2561fda
MM
533 return NULL;
534 }
535 if (cmd->cb.data) {
536 if (CAP(LITERALPLUS)) {
95c53908
RS
537 n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen);
538 free(cmd->cb.data);
f2561fda 539 if (n != cmd->cb.dlen ||
8e76bf3f 540 socket_write(&imap->buf.sock, "\r\n", 2) != 2) {
95c53908
RS
541 free(cmd->cmd);
542 free(cmd);
f2561fda
MM
543 return NULL;
544 }
5142db69 545 cmd->cb.data = NULL;
f2561fda
MM
546 } else
547 imap->literal_pending = 1;
548 } else if (cmd->cb.cont)
549 imap->literal_pending = 1;
5142db69 550 cmd->next = NULL;
f2561fda
MM
551 *imap->in_progress_append = cmd;
552 imap->in_progress_append = &cmd->next;
553 imap->num_in_progress++;
554 return cmd;
555}
556
9f1ad541 557static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx,
95c53908
RS
558 struct imap_cmd_cb *cb,
559 const char *fmt, ...)
f2561fda
MM
560{
561 struct imap_cmd *ret;
562 va_list ap;
563
95c53908
RS
564 va_start(ap, fmt);
565 ret = v_issue_imap_cmd(ctx, cb, fmt, ap);
566 va_end(ap);
f2561fda
MM
567 return ret;
568}
569
9f1ad541 570static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb,
95c53908 571 const char *fmt, ...)
f2561fda
MM
572{
573 va_list ap;
574 struct imap_cmd *cmdp;
575
95c53908
RS
576 va_start(ap, fmt);
577 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
578 va_end(ap);
f2561fda
MM
579 if (!cmdp)
580 return RESP_BAD;
581
95c53908 582 return get_cmd_result(ctx, cmdp);
f2561fda
MM
583}
584
9f1ad541 585static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb,
95c53908 586 const char *fmt, ...)
f2561fda
MM
587{
588 va_list ap;
589 struct imap_cmd *cmdp;
590
95c53908
RS
591 va_start(ap, fmt);
592 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
593 va_end(ap);
f2561fda
MM
594 if (!cmdp)
595 return DRV_STORE_BAD;
596
95c53908 597 switch (get_cmd_result(ctx, cmdp)) {
f2561fda
MM
598 case RESP_BAD: return DRV_STORE_BAD;
599 case RESP_NO: return DRV_MSG_BAD;
600 default: return DRV_OK;
601 }
602}
603
9f1ad541 604static int is_atom(struct imap_list *list)
f2561fda
MM
605{
606 return list && list->val && list->val != NIL && list->val != LIST;
607}
608
9f1ad541 609static int is_list(struct imap_list *list)
f2561fda
MM
610{
611 return list && list->val == LIST;
612}
613
9f1ad541 614static void free_list(struct imap_list *list)
f2561fda 615{
9f1ad541 616 struct imap_list *tmp;
f2561fda
MM
617
618 for (; list; list = tmp) {
619 tmp = list->next;
95c53908
RS
620 if (is_list(list))
621 free_list(list->child);
622 else if (is_atom(list))
623 free(list->val);
624 free(list);
f2561fda
MM
625 }
626}
627
9f1ad541 628static int parse_imap_list_l(struct imap *imap, char **sp, struct imap_list **curp, int level)
f2561fda 629{
9f1ad541 630 struct imap_list *cur;
f2561fda
MM
631 char *s = *sp, *p;
632 int n, bytes;
633
634 for (;;) {
95c53908 635 while (isspace((unsigned char)*s))
f2561fda
MM
636 s++;
637 if (level && *s == ')') {
638 s++;
639 break;
640 }
95c53908 641 *curp = cur = xmalloc(sizeof(*cur));
f2561fda 642 curp = &cur->next;
5142db69 643 cur->val = NULL; /* for clean bail */
f2561fda
MM
644 if (*s == '(') {
645 /* sublist */
646 s++;
647 cur->val = LIST;
95c53908 648 if (parse_imap_list_l(imap, &s, &cur->child, level + 1))
f2561fda
MM
649 goto bail;
650 } else if (imap && *s == '{') {
651 /* literal */
95c53908 652 bytes = cur->len = strtol(s + 1, &s, 10);
f2561fda
MM
653 if (*s != '}')
654 goto bail;
655
95c53908 656 s = cur->val = xmalloc(cur->len);
f2561fda
MM
657
658 /* dump whats left over in the input buffer */
659 n = imap->buf.bytes - imap->buf.offset;
660
661 if (n > bytes)
662 /* the entire message fit in the buffer */
663 n = bytes;
664
95c53908 665 memcpy(s, imap->buf.buf + imap->buf.offset, n);
f2561fda
MM
666 s += n;
667 bytes -= n;
668
669 /* mark that we used part of the buffer */
670 imap->buf.offset += n;
671
672 /* now read the rest of the message */
673 while (bytes > 0) {
95c53908 674 if ((n = socket_read(&imap->buf.sock, s, bytes)) <= 0)
f2561fda
MM
675 goto bail;
676 s += n;
677 bytes -= n;
678 }
679
95c53908 680 if (buffer_gets(&imap->buf, &s))
f2561fda
MM
681 goto bail;
682 } else if (*s == '"') {
683 /* quoted string */
684 s++;
685 p = s;
686 for (; *s != '"'; s++)
687 if (!*s)
688 goto bail;
689 cur->len = s - p;
690 s++;
182af834 691 cur->val = xmemdupz(p, cur->len);
f2561fda
MM
692 } else {
693 /* atom */
694 p = s;
95c53908 695 for (; *s && !isspace((unsigned char)*s); s++)
f2561fda
MM
696 if (level && *s == ')')
697 break;
698 cur->len = s - p;
9f1ad541 699 if (cur->len == 3 && !memcmp("NIL", p, 3))
f2561fda 700 cur->val = NIL;
9f1ad541 701 else
182af834 702 cur->val = xmemdupz(p, cur->len);
f2561fda
MM
703 }
704
705 if (!level)
706 break;
707 if (!*s)
708 goto bail;
709 }
710 *sp = s;
5142db69 711 *curp = NULL;
f2561fda
MM
712 return 0;
713
9f1ad541 714bail:
5142db69 715 *curp = NULL;
f2561fda
MM
716 return -1;
717}
718
9f1ad541 719static struct imap_list *parse_imap_list(struct imap *imap, char **sp)
f2561fda 720{
9f1ad541 721 struct imap_list *head;
f2561fda 722
95c53908 723 if (!parse_imap_list_l(imap, sp, &head, 0))
f2561fda 724 return head;
95c53908 725 free_list(head);
f2561fda
MM
726 return NULL;
727}
728
9f1ad541 729static struct imap_list *parse_list(char **sp)
f2561fda 730{
95c53908 731 return parse_imap_list(NULL, sp);
f2561fda
MM
732}
733
9f1ad541 734static void parse_capability(struct imap *imap, char *cmd)
f2561fda
MM
735{
736 char *arg;
737 unsigned i;
738
739 imap->caps = 0x80000000;
95c53908 740 while ((arg = next_arg(&cmd)))
f2561fda 741 for (i = 0; i < ARRAY_SIZE(cap_list); i++)
95c53908 742 if (!strcmp(cap_list[i], arg))
f2561fda
MM
743 imap->caps |= 1 << i;
744 imap->rcaps = imap->caps;
745}
746
9f1ad541 747static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
95c53908 748 char *s)
f2561fda 749{
9f1ad541 750 struct imap *imap = ctx->imap;
f2561fda
MM
751 char *arg, *p;
752
753 if (*s != '[')
754 return RESP_OK; /* no response code */
755 s++;
95c53908
RS
756 if (!(p = strchr(s, ']'))) {
757 fprintf(stderr, "IMAP error: malformed response code\n");
f2561fda
MM
758 return RESP_BAD;
759 }
760 *p++ = 0;
95c53908
RS
761 arg = next_arg(&s);
762 if (!strcmp("UIDVALIDITY", arg)) {
763 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg))) {
764 fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n");
f2561fda
MM
765 return RESP_BAD;
766 }
95c53908
RS
767 } else if (!strcmp("UIDNEXT", arg)) {
768 if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) {
769 fprintf(stderr, "IMAP error: malformed NEXTUID status\n");
f2561fda
MM
770 return RESP_BAD;
771 }
95c53908
RS
772 } else if (!strcmp("CAPABILITY", arg)) {
773 parse_capability(imap, s);
774 } else if (!strcmp("ALERT", arg)) {
f2561fda
MM
775 /* RFC2060 says that these messages MUST be displayed
776 * to the user
777 */
95c53908
RS
778 for (; isspace((unsigned char)*p); p++);
779 fprintf(stderr, "*** IMAP ALERT *** %s\n", p);
780 } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) {
781 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg)) ||
9f1ad541 782 !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) {
95c53908 783 fprintf(stderr, "IMAP error: malformed APPENDUID status\n");
f2561fda
MM
784 return RESP_BAD;
785 }
786 }
787 return RESP_OK;
788}
789
9f1ad541 790static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
f2561fda 791{
9f1ad541 792 struct imap *imap = ctx->imap;
f2561fda
MM
793 struct imap_cmd *cmdp, **pcmdp, *ncmdp;
794 char *cmd, *arg, *arg1, *p;
795 int n, resp, resp2, tag;
796
797 for (;;) {
95c53908 798 if (buffer_gets(&imap->buf, &cmd))
f2561fda
MM
799 return RESP_BAD;
800
95c53908 801 arg = next_arg(&cmd);
f2561fda 802 if (*arg == '*') {
95c53908 803 arg = next_arg(&cmd);
f2561fda 804 if (!arg) {
95c53908 805 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
f2561fda
MM
806 return RESP_BAD;
807 }
808
95c53908
RS
809 if (!strcmp("NAMESPACE", arg)) {
810 imap->ns_personal = parse_list(&cmd);
811 imap->ns_other = parse_list(&cmd);
812 imap->ns_shared = parse_list(&cmd);
813 } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) ||
814 !strcmp("NO", arg) || !strcmp("BYE", arg)) {
815 if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK)
f2561fda 816 return resp;
95c53908
RS
817 } else if (!strcmp("CAPABILITY", arg))
818 parse_capability(imap, cmd);
819 else if ((arg1 = next_arg(&cmd))) {
820 if (!strcmp("EXISTS", arg1))
821 ctx->gen.count = atoi(arg);
822 else if (!strcmp("RECENT", arg1))
823 ctx->gen.recent = atoi(arg);
f2561fda 824 } else {
95c53908 825 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
f2561fda
MM
826 return RESP_BAD;
827 }
828 } else if (!imap->in_progress) {
95c53908 829 fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : "");
f2561fda
MM
830 return RESP_BAD;
831 } else if (*arg == '+') {
832 /* This can happen only with the last command underway, as
833 it enforces a round-trip. */
834 cmdp = (struct imap_cmd *)((char *)imap->in_progress_append -
835 offsetof(struct imap_cmd, next));
836 if (cmdp->cb.data) {
95c53908
RS
837 n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen);
838 free(cmdp->cb.data);
5142db69 839 cmdp->cb.data = NULL;
f2561fda
MM
840 if (n != (int)cmdp->cb.dlen)
841 return RESP_BAD;
842 } else if (cmdp->cb.cont) {
95c53908 843 if (cmdp->cb.cont(ctx, cmdp, cmd))
f2561fda
MM
844 return RESP_BAD;
845 } else {
95c53908 846 fprintf(stderr, "IMAP error: unexpected command continuation request\n");
f2561fda
MM
847 return RESP_BAD;
848 }
95c53908 849 if (socket_write(&imap->buf.sock, "\r\n", 2) != 2)
f2561fda
MM
850 return RESP_BAD;
851 if (!cmdp->cb.cont)
852 imap->literal_pending = 0;
853 if (!tcmd)
854 return DRV_OK;
855 } else {
95c53908 856 tag = atoi(arg);
f2561fda
MM
857 for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next)
858 if (cmdp->tag == tag)
859 goto gottag;
95c53908 860 fprintf(stderr, "IMAP error: unexpected tag %s\n", arg);
f2561fda 861 return RESP_BAD;
9f1ad541 862 gottag:
f2561fda
MM
863 if (!(*pcmdp = cmdp->next))
864 imap->in_progress_append = pcmdp;
865 imap->num_in_progress--;
866 if (cmdp->cb.cont || cmdp->cb.data)
867 imap->literal_pending = 0;
95c53908
RS
868 arg = next_arg(&cmd);
869 if (!strcmp("OK", arg))
f2561fda
MM
870 resp = DRV_OK;
871 else {
95c53908
RS
872 if (!strcmp("NO", arg)) {
873 if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */
874 p = strchr(cmdp->cmd, '"');
875 if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", strchr(p + 1, '"') - p + 1, p)) {
f2561fda
MM
876 resp = RESP_BAD;
877 goto normal;
878 }
879 /* not waiting here violates the spec, but a server that does not
880 grok this nonetheless violates it too. */
881 cmdp->cb.create = 0;
95c53908 882 if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) {
f2561fda
MM
883 resp = RESP_BAD;
884 goto normal;
885 }
95c53908
RS
886 free(cmdp->cmd);
887 free(cmdp);
f2561fda
MM
888 if (!tcmd)
889 return 0; /* ignored */
890 if (cmdp == tcmd)
891 tcmd = ncmdp;
892 continue;
893 }
894 resp = RESP_NO;
95c53908 895 } else /*if (!strcmp("BAD", arg))*/
f2561fda 896 resp = RESP_BAD;
95c53908
RS
897 fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n",
898 memcmp(cmdp->cmd, "LOGIN", 5) ?
f2561fda
MM
899 cmdp->cmd : "LOGIN <user> <pass>",
900 arg, cmd ? cmd : "");
901 }
95c53908 902 if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp)
f2561fda 903 resp = resp2;
9f1ad541 904 normal:
f2561fda 905 if (cmdp->cb.done)
95c53908
RS
906 cmdp->cb.done(ctx, cmdp, resp);
907 free(cmdp->cb.data);
908 free(cmdp->cmd);
909 free(cmdp);
f2561fda
MM
910 if (!tcmd || tcmd == cmdp)
911 return resp;
912 }
913 }
914 /* not reached */
915}
916
9f1ad541 917static void imap_close_server(struct imap_store *ictx)
f2561fda 918{
9f1ad541 919 struct imap *imap = ictx->imap;
f2561fda 920
7a7796e9 921 if (imap->buf.sock.fd[0] != -1) {
95c53908
RS
922 imap_exec(ictx, NULL, "LOGOUT");
923 socket_shutdown(&imap->buf.sock);
f2561fda 924 }
95c53908
RS
925 free_list(imap->ns_personal);
926 free_list(imap->ns_other);
927 free_list(imap->ns_shared);
928 free(imap);
f2561fda
MM
929}
930
9f1ad541 931static void imap_close_store(struct store *ctx)
f2561fda 932{
9f1ad541 933 imap_close_server((struct imap_store *)ctx);
95c53908
RS
934 free_generic_messages(ctx->msgs);
935 free(ctx);
f2561fda
MM
936}
937
9f1ad541 938static struct store *imap_open_store(struct imap_server_conf *srvc)
f2561fda 939{
9f1ad541
JH
940 struct imap_store *ctx;
941 struct imap *imap;
f2561fda 942 char *arg, *rsp;
94ad2437 943 int s = -1, a[2], preauth;
c9bc159d 944 pid_t pid;
f2561fda 945
95c53908 946 ctx = xcalloc(sizeof(*ctx), 1);
f2561fda 947
95c53908 948 ctx->imap = imap = xcalloc(sizeof(*imap), 1);
7a7796e9 949 imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1;
f2561fda
MM
950 imap->in_progress_append = &imap->in_progress;
951
952 /* open connection to IMAP server */
953
954 if (srvc->tunnel) {
95c53908 955 imap_info("Starting tunnel '%s'... ", srvc->tunnel);
f2561fda 956
95c53908
RS
957 if (socketpair(PF_UNIX, SOCK_STREAM, 0, a)) {
958 perror("socketpair");
959 exit(1);
f2561fda
MM
960 }
961
c9bc159d
PD
962 pid = fork();
963 if (pid < 0)
95c53908 964 _exit(127);
c9bc159d 965 if (!pid) {
95c53908
RS
966 if (dup2(a[0], 0) == -1 || dup2(a[0], 1) == -1)
967 _exit(127);
968 close(a[0]);
969 close(a[1]);
970 execl("/bin/sh", "sh", "-c", srvc->tunnel, NULL);
971 _exit(127);
f2561fda
MM
972 }
973
95c53908 974 close(a[0]);
f2561fda 975
7a7796e9
EFL
976 imap->buf.sock.fd[0] = a[1];
977 imap->buf.sock.fd[1] = dup(a[1]);
f2561fda 978
95c53908 979 imap_info("ok\n");
f2561fda 980 } else {
94ad2437
BK
981#ifndef NO_IPV6
982 struct addrinfo hints, *ai0, *ai;
983 int gai;
984 char portstr[6];
985
986 snprintf(portstr, sizeof(portstr), "%hu", srvc->port);
987
988 memset(&hints, 0, sizeof(hints));
989 hints.ai_socktype = SOCK_STREAM;
990 hints.ai_protocol = IPPROTO_TCP;
991
992 imap_info("Resolving %s... ", srvc->host);
993 gai = getaddrinfo(srvc->host, portstr, &hints, &ai);
994 if (gai) {
995 fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai));
996 goto bail;
997 }
998 imap_info("ok\n");
999
1000 for (ai0 = ai; ai; ai = ai->ai_next) {
1001 char addr[NI_MAXHOST];
1002
1003 s = socket(ai->ai_family, ai->ai_socktype,
1004 ai->ai_protocol);
1005 if (s < 0)
1006 continue;
1007
1008 getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1009 sizeof(addr), NULL, 0, NI_NUMERICHOST);
1010 imap_info("Connecting to [%s]:%s... ", addr, portstr);
1011
1012 if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
1013 close(s);
1014 s = -1;
1015 perror("connect");
1016 continue;
1017 }
1018
1019 break;
1020 }
1021 freeaddrinfo(ai0);
1022#else /* NO_IPV6 */
1023 struct hostent *he;
1024 struct sockaddr_in addr;
1025
95c53908
RS
1026 memset(&addr, 0, sizeof(addr));
1027 addr.sin_port = htons(srvc->port);
f2561fda
MM
1028 addr.sin_family = AF_INET;
1029
95c53908
RS
1030 imap_info("Resolving %s... ", srvc->host);
1031 he = gethostbyname(srvc->host);
f2561fda 1032 if (!he) {
95c53908 1033 perror("gethostbyname");
f2561fda
MM
1034 goto bail;
1035 }
95c53908 1036 imap_info("ok\n");
f2561fda
MM
1037
1038 addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]);
1039
95c53908 1040 s = socket(PF_INET, SOCK_STREAM, 0);
f2561fda 1041
95c53908
RS
1042 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
1043 if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) {
1044 close(s);
94ad2437 1045 s = -1;
95c53908 1046 perror("connect");
94ad2437
BK
1047 }
1048#endif
1049 if (s < 0) {
1050 fputs("Error: unable to connect to server.\n", stderr);
f2561fda
MM
1051 goto bail;
1052 }
f2561fda 1053
7a7796e9
EFL
1054 imap->buf.sock.fd[0] = s;
1055 imap->buf.sock.fd[1] = dup(s);
f2561fda 1056
684ec6c6
RS
1057 if (srvc->use_ssl &&
1058 ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) {
1059 close(s);
1060 goto bail;
1061 }
95c53908 1062 imap_info("ok\n");
f2561fda
MM
1063 }
1064
1065 /* read the greeting string */
95c53908
RS
1066 if (buffer_gets(&imap->buf, &rsp)) {
1067 fprintf(stderr, "IMAP error: no greeting response\n");
f2561fda
MM
1068 goto bail;
1069 }
95c53908
RS
1070 arg = next_arg(&rsp);
1071 if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) {
1072 fprintf(stderr, "IMAP error: invalid greeting response\n");
f2561fda
MM
1073 goto bail;
1074 }
1075 preauth = 0;
95c53908 1076 if (!strcmp("PREAUTH", arg))
f2561fda 1077 preauth = 1;
95c53908
RS
1078 else if (strcmp("OK", arg) != 0) {
1079 fprintf(stderr, "IMAP error: unknown greeting response\n");
f2561fda
MM
1080 goto bail;
1081 }
95c53908
RS
1082 parse_response_code(ctx, NULL, rsp);
1083 if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
f2561fda
MM
1084 goto bail;
1085
1086 if (!preauth) {
684ec6c6
RS
1087#ifndef NO_OPENSSL
1088 if (!srvc->use_ssl && CAP(STARTTLS)) {
1089 if (imap_exec(ctx, 0, "STARTTLS") != RESP_OK)
1090 goto bail;
1091 if (ssl_socket_connect(&imap->buf.sock, 1,
1092 srvc->ssl_verify))
1093 goto bail;
1094 /* capabilities may have changed, so get the new capabilities */
1095 if (imap_exec(ctx, 0, "CAPABILITY") != RESP_OK)
1096 goto bail;
1097 }
1098#endif
95c53908 1099 imap_info("Logging in...\n");
f2561fda 1100 if (!srvc->user) {
95c53908 1101 fprintf(stderr, "Skipping server %s, no user\n", srvc->host);
f2561fda
MM
1102 goto bail;
1103 }
1104 if (!srvc->pass) {
1105 char prompt[80];
95c53908
RS
1106 sprintf(prompt, "Password (%s@%s): ", srvc->user, srvc->host);
1107 arg = getpass(prompt);
f2561fda 1108 if (!arg) {
95c53908
RS
1109 perror("getpass");
1110 exit(1);
f2561fda
MM
1111 }
1112 if (!*arg) {
95c53908 1113 fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host);
f2561fda
MM
1114 goto bail;
1115 }
1116 /*
1117 * getpass() returns a pointer to a static buffer. make a copy
1118 * for long term storage.
1119 */
95c53908 1120 srvc->pass = xstrdup(arg);
f2561fda
MM
1121 }
1122 if (CAP(NOLOGIN)) {
95c53908 1123 fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host);
f2561fda
MM
1124 goto bail;
1125 }
684ec6c6 1126 if (!imap->buf.sock.ssl)
9f1ad541
JH
1127 imap_warn("*** IMAP Warning *** Password is being "
1128 "sent in the clear\n");
95c53908
RS
1129 if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) {
1130 fprintf(stderr, "IMAP error: LOGIN failed\n");
f2561fda
MM
1131 goto bail;
1132 }
1133 } /* !preauth */
1134
1135 ctx->prefix = "";
1136 ctx->trashnc = 1;
9f1ad541 1137 return (struct store *)ctx;
f2561fda 1138
9f1ad541 1139bail:
95c53908 1140 imap_close_store(&ctx->gen);
5142db69 1141 return NULL;
f2561fda
MM
1142}
1143
95c53908 1144static int imap_make_flags(int flags, char *buf)
f2561fda
MM
1145{
1146 const char *s;
1147 unsigned i, d;
1148
1149 for (i = d = 0; i < ARRAY_SIZE(Flags); i++)
1150 if (flags & (1 << i)) {
1151 buf[d++] = ' ';
1152 buf[d++] = '\\';
1153 for (s = Flags[i]; *s; s++)
1154 buf[d++] = *s;
1155 }
1156 buf[0] = '(';
1157 buf[d++] = ')';
1158 return d;
1159}
1160
3a7cba95 1161static int imap_store_msg(struct store *gctx, struct msg_data *data)
f2561fda 1162{
9f1ad541
JH
1163 struct imap_store *ctx = (struct imap_store *)gctx;
1164 struct imap *imap = ctx->imap;
f2561fda 1165 struct imap_cmd_cb cb;
f2561fda 1166 const char *prefix, *box;
3a7cba95
JK
1167 int ret, d;
1168 char flagstr[128];
f2561fda 1169
95c53908 1170 memset(&cb, 0, sizeof(cb));
f2561fda 1171
3a7cba95
JK
1172 cb.dlen = data->len;
1173 cb.data = xmalloc(cb.dlen);
1174 memcpy(cb.data, data->data, data->len);
f2561fda
MM
1175
1176 d = 0;
1177 if (data->flags) {
95c53908 1178 d = imap_make_flags(data->flags, flagstr);
f2561fda
MM
1179 flagstr[d++] = ' ';
1180 }
1181 flagstr[d] = 0;
1182
3a7cba95
JK
1183 box = gctx->name;
1184 prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix;
1185 cb.create = 0;
95c53908 1186 ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" %s", prefix, box, flagstr);
f2561fda
MM
1187 imap->caps = imap->rcaps;
1188 if (ret != DRV_OK)
1189 return ret;
3a7cba95 1190 gctx->count++;
f2561fda
MM
1191
1192 return DRV_OK;
1193}
1194
c64d84f1
JW
1195static void encode_html_chars(struct strbuf *p)
1196{
1197 int i;
1198 for (i = 0; i < p->len; i++) {
1199 if (p->buf[i] == '&')
1200 strbuf_splice(p, i, 1, "&amp;", 5);
1201 if (p->buf[i] == '<')
1202 strbuf_splice(p, i, 1, "&lt;", 4);
1203 if (p->buf[i] == '>')
1204 strbuf_splice(p, i, 1, "&gt;", 4);
1205 if (p->buf[i] == '"')
1206 strbuf_splice(p, i, 1, "&quot;", 6);
1207 }
1208}
1209static void wrap_in_html(struct msg_data *msg)
1210{
1211 struct strbuf buf = STRBUF_INIT;
1212 struct strbuf **lines;
1213 struct strbuf **p;
1214 static char *content_type = "Content-Type: text/html;\n";
1215 static char *pre_open = "<pre>\n";
1216 static char *pre_close = "</pre>\n";
1217 int added_header = 0;
1218
1219 strbuf_attach(&buf, msg->data, msg->len, msg->len);
1220 lines = strbuf_split(&buf, '\n');
1221 strbuf_release(&buf);
1222 for (p = lines; *p; p++) {
1223 if (! added_header) {
1224 if ((*p)->len == 1 && *((*p)->buf) == '\n') {
1225 strbuf_addstr(&buf, content_type);
1226 strbuf_addbuf(&buf, *p);
1227 strbuf_addstr(&buf, pre_open);
1228 added_header = 1;
1229 continue;
1230 }
1231 }
1232 else
1233 encode_html_chars(*p);
1234 strbuf_addbuf(&buf, *p);
1235 }
1236 strbuf_addstr(&buf, pre_close);
1237 strbuf_list_free(lines);
1238 msg->len = buf.len;
1239 msg->data = strbuf_detach(&buf, NULL);
1240}
1241
f2561fda
MM
1242#define CHUNKSIZE 0x1000
1243
9f1ad541 1244static int read_message(FILE *f, struct msg_data *msg)
f2561fda 1245{
f285a2d7 1246 struct strbuf buf = STRBUF_INIT;
f2561fda 1247
635d043f 1248 memset(msg, 0, sizeof(*msg));
635d043f
PH
1249
1250 do {
1251 if (strbuf_fread(&buf, CHUNKSIZE, f) <= 0)
f2561fda 1252 break;
635d043f
PH
1253 } while (!feof(f));
1254
1255 msg->len = buf.len;
b315c5c0 1256 msg->data = strbuf_detach(&buf, NULL);
f2561fda
MM
1257 return msg->len;
1258}
1259
9f1ad541 1260static int count_messages(struct msg_data *msg)
f2561fda
MM
1261{
1262 int count = 0;
1263 char *p = msg->data;
1264
1265 while (1) {
1968d77d 1266 if (!prefixcmp(p, "From ")) {
f2561fda
MM
1267 count++;
1268 p += 5;
1269 }
95c53908 1270 p = strstr(p+5, "\nFrom ");
f2561fda
MM
1271 if (!p)
1272 break;
1273 p++;
1274 }
1275 return count;
1276}
1277
9f1ad541 1278static int split_msg(struct msg_data *all_msgs, struct msg_data *msg, int *ofs)
f2561fda
MM
1279{
1280 char *p, *data;
1281
95c53908 1282 memset(msg, 0, sizeof *msg);
f2561fda
MM
1283 if (*ofs >= all_msgs->len)
1284 return 0;
1285
95c53908 1286 data = &all_msgs->data[*ofs];
f2561fda
MM
1287 msg->len = all_msgs->len - *ofs;
1288
1968d77d 1289 if (msg->len < 5 || prefixcmp(data, "From "))
f2561fda
MM
1290 return 0;
1291
95c53908 1292 p = strchr(data, '\n');
e0b08307
MA
1293 if (p) {
1294 p = &p[1];
1295 msg->len -= p-data;
1296 *ofs += p-data;
1297 data = p;
1298 }
1299
95c53908 1300 p = strstr(data, "\nFrom ");
f2561fda
MM
1301 if (p)
1302 msg->len = &p[1] - data;
1303
182af834 1304 msg->data = xmemdupz(data, msg->len);
f2561fda 1305 *ofs += msg->len;
a6080a0a 1306 return 1;
f2561fda
MM
1307}
1308
9f1ad541 1309static struct imap_server_conf server = {
f2561fda
MM
1310 NULL, /* name */
1311 NULL, /* tunnel */
1312 NULL, /* host */
1313 0, /* port */
1314 NULL, /* user */
1315 NULL, /* pass */
684ec6c6
RS
1316 0, /* use_ssl */
1317 1, /* ssl_verify */
c64d84f1 1318 0, /* use_html */
f2561fda
MM
1319};
1320
1321static char *imap_folder;
1322
95c53908 1323static int git_imap_config(const char *key, const char *val, void *cb)
f2561fda
MM
1324{
1325 char imap_key[] = "imap.";
1326
95c53908 1327 if (strncmp(key, imap_key, sizeof imap_key - 1))
f2561fda 1328 return 0;
3c17c34a
JH
1329
1330 if (!val)
1331 return config_error_nonbool(key);
1332
f2561fda
MM
1333 key += sizeof imap_key - 1;
1334
95c53908
RS
1335 if (!strcmp("folder", key)) {
1336 imap_folder = xstrdup(val);
1337 } else if (!strcmp("host", key)) {
684ec6c6
RS
1338 if (!prefixcmp(val, "imap:"))
1339 val += 5;
1340 else if (!prefixcmp(val, "imaps:")) {
1341 val += 6;
1342 server.use_ssl = 1;
f2561fda 1343 }
1968d77d 1344 if (!prefixcmp(val, "//"))
f2561fda 1345 val += 2;
95c53908 1346 server.host = xstrdup(val);
9f1ad541 1347 } else if (!strcmp("user", key))
95c53908
RS
1348 server.user = xstrdup(val);
1349 else if (!strcmp("pass", key))
1350 server.pass = xstrdup(val);
1351 else if (!strcmp("port", key))
1352 server.port = git_config_int(key, val);
1353 else if (!strcmp("tunnel", key))
1354 server.tunnel = xstrdup(val);
1355 else if (!strcmp("sslverify", key))
1356 server.ssl_verify = git_config_bool(key, val);
c64d84f1
JW
1357 else if (!strcmp("preformattedHTML", key))
1358 server.use_html = git_config_bool(key, val);
f2561fda
MM
1359 return 0;
1360}
1361
95c53908 1362int main(int argc, char **argv)
f2561fda 1363{
9f1ad541
JH
1364 struct msg_data all_msgs, msg;
1365 struct store *ctx = NULL;
f2561fda
MM
1366 int ofs = 0;
1367 int r;
1368 int total, n = 0;
a0406b94 1369 int nongit_ok;
f2561fda 1370
2fb3f6db
SP
1371 git_extract_argv0_path(argv[0]);
1372
a0406b94 1373 setup_git_directory_gently(&nongit_ok);
ef90d6d4 1374 git_config(git_imap_config, NULL);
f2561fda 1375
684ec6c6
RS
1376 if (!server.port)
1377 server.port = server.use_ssl ? 993 : 143;
1378
f2561fda 1379 if (!imap_folder) {
95c53908 1380 fprintf(stderr, "no imap store specified\n");
f2561fda
MM
1381 return 1;
1382 }
5b67b8e2 1383 if (!server.host) {
34b5cd1f 1384 if (!server.tunnel) {
95c53908 1385 fprintf(stderr, "no imap host specified\n");
34b5cd1f
JK
1386 return 1;
1387 }
1388 server.host = "tunnel";
5b67b8e2 1389 }
f2561fda
MM
1390
1391 /* read the messages */
95c53908 1392 if (!read_message(stdin, &all_msgs)) {
9f1ad541 1393 fprintf(stderr, "nothing to send\n");
f2561fda
MM
1394 return 1;
1395 }
1396
95c53908 1397 total = count_messages(&all_msgs);
1cd88cc9 1398 if (!total) {
9f1ad541 1399 fprintf(stderr, "no messages to send\n");
1cd88cc9
MM
1400 return 1;
1401 }
1402
f2561fda 1403 /* write it to the imap server */
95c53908 1404 ctx = imap_open_store(&server);
f2561fda 1405 if (!ctx) {
9f1ad541 1406 fprintf(stderr, "failed to open store\n");
f2561fda
MM
1407 return 1;
1408 }
1409
9f1ad541 1410 fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : "");
f2561fda
MM
1411 ctx->name = imap_folder;
1412 while (1) {
1413 unsigned percent = n * 100 / total;
95c53908
RS
1414 fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total);
1415 if (!split_msg(&all_msgs, &msg, &ofs))
f2561fda 1416 break;
c64d84f1
JW
1417 if (server.use_html)
1418 wrap_in_html(&msg);
3a7cba95 1419 r = imap_store_msg(ctx, &msg);
9f1ad541
JH
1420 if (r != DRV_OK)
1421 break;
f2561fda
MM
1422 n++;
1423 }
95c53908 1424 fprintf(stderr, "\n");
f2561fda 1425
95c53908 1426 imap_close_store(ctx);
f2561fda
MM
1427
1428 return 0;
1429}