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hooks: Add function to check if a hook exists
[git.git] / imap-send.c
blobe521e2fd223766eee22705674dd3becbb3d52a57
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"
26 #include "exec_cmd.h"
27 #include "run-command.h"
28 #include "prompt.h"
29 #ifdef NO_OPENSSL
30 typedef void *SSL;
31 #else
32 #include <openssl/evp.h>
33 #include <openssl/hmac.h>
34 #endif
35
36 struct store_conf {
37 char *name;
38 const char *path; /* should this be here? its interpretation is driver-specific */
39 char *map_inbox;
40 char *trash;
41 unsigned max_size; /* off_t is overkill */
42 unsigned trash_remote_new:1, trash_only_new:1;
43 };
44
45 /* For message->status */
46 #define M_RECENT (1<<0) /* unsyncable flag; maildir_* depend on this being 1<<0 */
47 #define M_DEAD (1<<1) /* expunged */
48 #define M_FLAGS (1<<2) /* flags fetched */
49
50 struct message {
51 struct message *next;
52 size_t size; /* zero implies "not fetched" */
53 int uid;
54 unsigned char flags, status;
55 };
56
57 struct store {
58 struct store_conf *conf; /* foreign */
59
60 /* currently open mailbox */
61 const char *name; /* foreign! maybe preset? */
62 char *path; /* own */
63 struct message *msgs; /* own */
64 int uidvalidity;
65 unsigned char opts; /* maybe preset? */
66 /* note that the following do _not_ reflect stats from msgs, but mailbox totals */
67 int count; /* # of messages */
68 int recent; /* # of recent messages - don't trust this beyond the initial read */
69 };
70
71 struct msg_data {
72 struct strbuf data;
73 unsigned char flags;
74 };
75
76 static const char imap_send_usage[] = "git imap-send < <mbox>";
77
78 #undef DRV_OK
79 #define DRV_OK 0
80 #define DRV_MSG_BAD -1
81 #define DRV_BOX_BAD -2
82 #define DRV_STORE_BAD -3
83
84 static int Verbose, Quiet;
85
86 __attribute__((format (printf, 1, 2)))
87 static void imap_info(const char *, ...);
88 __attribute__((format (printf, 1, 2)))
89 static void imap_warn(const char *, ...);
90
91 static char *next_arg(char **);
92
93 static void free_generic_messages(struct message *);
94
95 __attribute__((format (printf, 3, 4)))
96 static int nfsnprintf(char *buf, int blen, const char *fmt, ...);
97
98 static int nfvasprintf(char **strp, const char *fmt, va_list ap)
99 {
100 int len;
101 char tmp[8192];
102
103 len = vsnprintf(tmp, sizeof(tmp), fmt, ap);
104 if (len < 0)
105 die("Fatal: Out of memory");
106 if (len >= sizeof(tmp))
107 die("imap command overflow!");
108 *strp = xmemdupz(tmp, len);
109 return len;
110 }
111
112 struct imap_server_conf {
113 char *name;
114 char *tunnel;
115 char *host;
116 int port;
117 char *user;
118 char *pass;
119 int use_ssl;
120 int ssl_verify;
121 int use_html;
122 char *auth_method;
123 };
124
125 static struct imap_server_conf server = {
126 NULL, /* name */
127 NULL, /* tunnel */
128 NULL, /* host */
129 0, /* port */
130 NULL, /* user */
131 NULL, /* pass */
132 0, /* use_ssl */
133 1, /* ssl_verify */
134 0, /* use_html */
135 NULL, /* auth_method */
136 };
137
138 struct imap_store_conf {
139 struct store_conf gen;
140 struct imap_server_conf *server;
141 };
142
143 #define NIL (void *)0x1
144 #define LIST (void *)0x2
145
146 struct imap_list {
147 struct imap_list *next, *child;
148 char *val;
149 int len;
150 };
151
152 struct imap_socket {
153 int fd[2];
154 SSL *ssl;
155 };
156
157 struct imap_buffer {
158 struct imap_socket sock;
159 int bytes;
160 int offset;
161 char buf[1024];
162 };
163
164 struct imap_cmd;
165
166 struct imap {
167 int uidnext; /* from SELECT responses */
168 struct imap_list *ns_personal, *ns_other, *ns_shared; /* NAMESPACE info */
169 unsigned caps, rcaps; /* CAPABILITY results */
170 /* command queue */
171 int nexttag, num_in_progress, literal_pending;
172 struct imap_cmd *in_progress, **in_progress_append;
173 struct imap_buffer buf; /* this is BIG, so put it last */
174 };
175
176 struct imap_store {
177 struct store gen;
178 int uidvalidity;
179 struct imap *imap;
180 const char *prefix;
181 unsigned /*currentnc:1,*/ trashnc:1;
182 };
183
184 struct imap_cmd_cb {
185 int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt);
186 void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response);
187 void *ctx;
188 char *data;
189 int dlen;
190 int uid;
191 unsigned create:1, trycreate:1;
192 };
193
194 struct imap_cmd {
195 struct imap_cmd *next;
196 struct imap_cmd_cb cb;
197 char *cmd;
198 int tag;
199 };
200
201 #define CAP(cap) (imap->caps & (1 << (cap)))
202
203 enum CAPABILITY {
204 NOLOGIN = 0,
205 UIDPLUS,
206 LITERALPLUS,
207 NAMESPACE,
208 STARTTLS,
209 AUTH_CRAM_MD5
210 };
211
212 static const char *cap_list[] = {
213 "LOGINDISABLED",
214 "UIDPLUS",
215 "LITERAL+",
216 "NAMESPACE",
217 "STARTTLS",
218 "AUTH=CRAM-MD5",
219 };
220
221 #define RESP_OK 0
222 #define RESP_NO 1
223 #define RESP_BAD 2
224
225 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd);
226
227
228 static const char *Flags[] = {
229 "Draft",
230 "Flagged",
231 "Answered",
232 "Seen",
233 "Deleted",
234 };
235
236 #ifndef NO_OPENSSL
237 static void ssl_socket_perror(const char *func)
238 {
239 fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL));
240 }
241 #endif
242
243 static void socket_perror(const char *func, struct imap_socket *sock, int ret)
244 {
245 #ifndef NO_OPENSSL
246 if (sock->ssl) {
247 int sslerr = SSL_get_error(sock->ssl, ret);
248 switch (sslerr) {
249 case SSL_ERROR_NONE:
250 break;
251 case SSL_ERROR_SYSCALL:
252 perror("SSL_connect");
253 break;
254 default:
255 ssl_socket_perror("SSL_connect");
256 break;
257 }
258 } else
259 #endif
260 {
261 if (ret < 0)
262 perror(func);
263 else
264 fprintf(stderr, "%s: unexpected EOF\n", func);
265 }
266 }
267
268 static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify)
269 {
270 #ifdef NO_OPENSSL
271 fprintf(stderr, "SSL requested but SSL support not compiled in\n");
272 return -1;
273 #else
274 #if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
275 const SSL_METHOD *meth;
276 #else
277 SSL_METHOD *meth;
278 #endif
279 SSL_CTX *ctx;
280 int ret;
281
282 SSL_library_init();
283 SSL_load_error_strings();
284
285 if (use_tls_only)
286 meth = TLSv1_method();
287 else
288 meth = SSLv23_method();
289
290 if (!meth) {
291 ssl_socket_perror("SSLv23_method");
292 return -1;
293 }
294
295 ctx = SSL_CTX_new(meth);
296
297 if (verify)
298 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
299
300 if (!SSL_CTX_set_default_verify_paths(ctx)) {
301 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
302 return -1;
303 }
304 sock->ssl = SSL_new(ctx);
305 if (!sock->ssl) {
306 ssl_socket_perror("SSL_new");
307 return -1;
308 }
309 if (!SSL_set_rfd(sock->ssl, sock->fd[0])) {
310 ssl_socket_perror("SSL_set_rfd");
311 return -1;
312 }
313 if (!SSL_set_wfd(sock->ssl, sock->fd[1])) {
314 ssl_socket_perror("SSL_set_wfd");
315 return -1;
316 }
317
318 ret = SSL_connect(sock->ssl);
319 if (ret <= 0) {
320 socket_perror("SSL_connect", sock, ret);
321 return -1;
322 }
323
324 return 0;
325 #endif
326 }
327
328 static int socket_read(struct imap_socket *sock, char *buf, int len)
329 {
330 ssize_t n;
331 #ifndef NO_OPENSSL
332 if (sock->ssl)
333 n = SSL_read(sock->ssl, buf, len);
334 else
335 #endif
336 n = xread(sock->fd[0], buf, len);
337 if (n <= 0) {
338 socket_perror("read", sock, n);
339 close(sock->fd[0]);
340 close(sock->fd[1]);
341 sock->fd[0] = sock->fd[1] = -1;
342 }
343 return n;
344 }
345
346 static int socket_write(struct imap_socket *sock, const char *buf, int len)
347 {
348 int n;
349 #ifndef NO_OPENSSL
350 if (sock->ssl)
351 n = SSL_write(sock->ssl, buf, len);
352 else
353 #endif
354 n = write_in_full(sock->fd[1], buf, len);
355 if (n != len) {
356 socket_perror("write", sock, n);
357 close(sock->fd[0]);
358 close(sock->fd[1]);
359 sock->fd[0] = sock->fd[1] = -1;
360 }
361 return n;
362 }
363
364 static void socket_shutdown(struct imap_socket *sock)
365 {
366 #ifndef NO_OPENSSL
367 if (sock->ssl) {
368 SSL_shutdown(sock->ssl);
369 SSL_free(sock->ssl);
370 }
371 #endif
372 close(sock->fd[0]);
373 close(sock->fd[1]);
374 }
375
376 /* simple line buffering */
377 static int buffer_gets(struct imap_buffer *b, char **s)
378 {
379 int n;
380 int start = b->offset;
381
382 *s = b->buf + start;
383
384 for (;;) {
385 /* make sure we have enough data to read the \r\n sequence */
386 if (b->offset + 1 >= b->bytes) {
387 if (start) {
388 /* shift down used bytes */
389 *s = b->buf;
390
391 assert(start <= b->bytes);
392 n = b->bytes - start;
393
394 if (n)
395 memmove(b->buf, b->buf + start, n);
396 b->offset -= start;
397 b->bytes = n;
398 start = 0;
399 }
400
401 n = socket_read(&b->sock, b->buf + b->bytes,
402 sizeof(b->buf) - b->bytes);
403
404 if (n <= 0)
405 return -1;
406
407 b->bytes += n;
408 }
409
410 if (b->buf[b->offset] == '\r') {
411 assert(b->offset + 1 < b->bytes);
412 if (b->buf[b->offset + 1] == '\n') {
413 b->buf[b->offset] = 0; /* terminate the string */
414 b->offset += 2; /* next line */
415 if (Verbose)
416 puts(*s);
417 return 0;
418 }
419 }
420
421 b->offset++;
422 }
423 /* not reached */
424 }
425
426 static void imap_info(const char *msg, ...)
427 {
428 va_list va;
429
430 if (!Quiet) {
431 va_start(va, msg);
432 vprintf(msg, va);
433 va_end(va);
434 fflush(stdout);
435 }
436 }
437
438 static void imap_warn(const char *msg, ...)
439 {
440 va_list va;
441
442 if (Quiet < 2) {
443 va_start(va, msg);
444 vfprintf(stderr, msg, va);
445 va_end(va);
446 }
447 }
448
449 static char *next_arg(char **s)
450 {
451 char *ret;
452
453 if (!s || !*s)
454 return NULL;
455 while (isspace((unsigned char) **s))
456 (*s)++;
457 if (!**s) {
458 *s = NULL;
459 return NULL;
460 }
461 if (**s == '"') {
462 ++*s;
463 ret = *s;
464 *s = strchr(*s, '"');
465 } else {
466 ret = *s;
467 while (**s && !isspace((unsigned char) **s))
468 (*s)++;
469 }
470 if (*s) {
471 if (**s)
472 *(*s)++ = 0;
473 if (!**s)
474 *s = NULL;
475 }
476 return ret;
477 }
478
479 static void free_generic_messages(struct message *msgs)
480 {
481 struct message *tmsg;
482
483 for (; msgs; msgs = tmsg) {
484 tmsg = msgs->next;
485 free(msgs);
486 }
487 }
488
489 static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
490 {
491 int ret;
492 va_list va;
493
494 va_start(va, fmt);
495 if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
496 die("Fatal: buffer too small. Please report a bug.");
497 va_end(va);
498 return ret;
499 }
500
501 static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
502 struct imap_cmd_cb *cb,
503 const char *fmt, va_list ap)
504 {
505 struct imap *imap = ctx->imap;
506 struct imap_cmd *cmd;
507 int n, bufl;
508 char buf[1024];
509
510 cmd = xmalloc(sizeof(struct imap_cmd));
511 nfvasprintf(&cmd->cmd, fmt, ap);
512 cmd->tag = ++imap->nexttag;
513
514 if (cb)
515 cmd->cb = *cb;
516 else
517 memset(&cmd->cb, 0, sizeof(cmd->cb));
518
519 while (imap->literal_pending)
520 get_cmd_result(ctx, NULL);
521
522 if (!cmd->cb.data)
523 bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd);
524 else
525 bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n",
526 cmd->tag, cmd->cmd, cmd->cb.dlen,
527 CAP(LITERALPLUS) ? "+" : "");
528
529 if (Verbose) {
530 if (imap->num_in_progress)
531 printf("(%d in progress) ", imap->num_in_progress);
532 if (memcmp(cmd->cmd, "LOGIN", 5))
533 printf(">>> %s", buf);
534 else
535 printf(">>> %d LOGIN <user> <pass>\n", cmd->tag);
536 }
537 if (socket_write(&imap->buf.sock, buf, bufl) != bufl) {
538 free(cmd->cmd);
539 free(cmd);
540 if (cb)
541 free(cb->data);
542 return NULL;
543 }
544 if (cmd->cb.data) {
545 if (CAP(LITERALPLUS)) {
546 n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen);
547 free(cmd->cb.data);
548 if (n != cmd->cb.dlen ||
549 socket_write(&imap->buf.sock, "\r\n", 2) != 2) {
550 free(cmd->cmd);
551 free(cmd);
552 return NULL;
553 }
554 cmd->cb.data = NULL;
555 } else
556 imap->literal_pending = 1;
557 } else if (cmd->cb.cont)
558 imap->literal_pending = 1;
559 cmd->next = NULL;
560 *imap->in_progress_append = cmd;
561 imap->in_progress_append = &cmd->next;
562 imap->num_in_progress++;
563 return cmd;
564 }
565
566 __attribute__((format (printf, 3, 4)))
567 static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx,
568 struct imap_cmd_cb *cb,
569 const char *fmt, ...)
570 {
571 struct imap_cmd *ret;
572 va_list ap;
573
574 va_start(ap, fmt);
575 ret = v_issue_imap_cmd(ctx, cb, fmt, ap);
576 va_end(ap);
577 return ret;
578 }
579
580 __attribute__((format (printf, 3, 4)))
581 static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb,
582 const char *fmt, ...)
583 {
584 va_list ap;
585 struct imap_cmd *cmdp;
586
587 va_start(ap, fmt);
588 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
589 va_end(ap);
590 if (!cmdp)
591 return RESP_BAD;
592
593 return get_cmd_result(ctx, cmdp);
594 }
595
596 __attribute__((format (printf, 3, 4)))
597 static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb,
598 const char *fmt, ...)
599 {
600 va_list ap;
601 struct imap_cmd *cmdp;
602
603 va_start(ap, fmt);
604 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
605 va_end(ap);
606 if (!cmdp)
607 return DRV_STORE_BAD;
608
609 switch (get_cmd_result(ctx, cmdp)) {
610 case RESP_BAD: return DRV_STORE_BAD;
611 case RESP_NO: return DRV_MSG_BAD;
612 default: return DRV_OK;
613 }
614 }
615
616 static int is_atom(struct imap_list *list)
617 {
618 return list && list->val && list->val != NIL && list->val != LIST;
619 }
620
621 static int is_list(struct imap_list *list)
622 {
623 return list && list->val == LIST;
624 }
625
626 static void free_list(struct imap_list *list)
627 {
628 struct imap_list *tmp;
629
630 for (; list; list = tmp) {
631 tmp = list->next;
632 if (is_list(list))
633 free_list(list->child);
634 else if (is_atom(list))
635 free(list->val);
636 free(list);
637 }
638 }
639
640 static int parse_imap_list_l(struct imap *imap, char **sp, struct imap_list **curp, int level)
641 {
642 struct imap_list *cur;
643 char *s = *sp, *p;
644 int n, bytes;
645
646 for (;;) {
647 while (isspace((unsigned char)*s))
648 s++;
649 if (level && *s == ')') {
650 s++;
651 break;
652 }
653 *curp = cur = xmalloc(sizeof(*cur));
654 curp = &cur->next;
655 cur->val = NULL; /* for clean bail */
656 if (*s == '(') {
657 /* sublist */
658 s++;
659 cur->val = LIST;
660 if (parse_imap_list_l(imap, &s, &cur->child, level + 1))
661 goto bail;
662 } else if (imap && *s == '{') {
663 /* literal */
664 bytes = cur->len = strtol(s + 1, &s, 10);
665 if (*s != '}')
666 goto bail;
667
668 s = cur->val = xmalloc(cur->len);
669
670 /* dump whats left over in the input buffer */
671 n = imap->buf.bytes - imap->buf.offset;
672
673 if (n > bytes)
674 /* the entire message fit in the buffer */
675 n = bytes;
676
677 memcpy(s, imap->buf.buf + imap->buf.offset, n);
678 s += n;
679 bytes -= n;
680
681 /* mark that we used part of the buffer */
682 imap->buf.offset += n;
683
684 /* now read the rest of the message */
685 while (bytes > 0) {
686 if ((n = socket_read(&imap->buf.sock, s, bytes)) <= 0)
687 goto bail;
688 s += n;
689 bytes -= n;
690 }
691
692 if (buffer_gets(&imap->buf, &s))
693 goto bail;
694 } else if (*s == '"') {
695 /* quoted string */
696 s++;
697 p = s;
698 for (; *s != '"'; s++)
699 if (!*s)
700 goto bail;
701 cur->len = s - p;
702 s++;
703 cur->val = xmemdupz(p, cur->len);
704 } else {
705 /* atom */
706 p = s;
707 for (; *s && !isspace((unsigned char)*s); s++)
708 if (level && *s == ')')
709 break;
710 cur->len = s - p;
711 if (cur->len == 3 && !memcmp("NIL", p, 3))
712 cur->val = NIL;
713 else
714 cur->val = xmemdupz(p, cur->len);
715 }
716
717 if (!level)
718 break;
719 if (!*s)
720 goto bail;
721 }
722 *sp = s;
723 *curp = NULL;
724 return 0;
725
726 bail:
727 *curp = NULL;
728 return -1;
729 }
730
731 static struct imap_list *parse_imap_list(struct imap *imap, char **sp)
732 {
733 struct imap_list *head;
734
735 if (!parse_imap_list_l(imap, sp, &head, 0))
736 return head;
737 free_list(head);
738 return NULL;
739 }
740
741 static struct imap_list *parse_list(char **sp)
742 {
743 return parse_imap_list(NULL, sp);
744 }
745
746 static void parse_capability(struct imap *imap, char *cmd)
747 {
748 char *arg;
749 unsigned i;
750
751 imap->caps = 0x80000000;
752 while ((arg = next_arg(&cmd)))
753 for (i = 0; i < ARRAY_SIZE(cap_list); i++)
754 if (!strcmp(cap_list[i], arg))
755 imap->caps |= 1 << i;
756 imap->rcaps = imap->caps;
757 }
758
759 static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
760 char *s)
761 {
762 struct imap *imap = ctx->imap;
763 char *arg, *p;
764
765 if (*s != '[')
766 return RESP_OK; /* no response code */
767 s++;
768 if (!(p = strchr(s, ']'))) {
769 fprintf(stderr, "IMAP error: malformed response code\n");
770 return RESP_BAD;
771 }
772 *p++ = 0;
773 arg = next_arg(&s);
774 if (!strcmp("UIDVALIDITY", arg)) {
775 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg))) {
776 fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n");
777 return RESP_BAD;
778 }
779 } else if (!strcmp("UIDNEXT", arg)) {
780 if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) {
781 fprintf(stderr, "IMAP error: malformed NEXTUID status\n");
782 return RESP_BAD;
783 }
784 } else if (!strcmp("CAPABILITY", arg)) {
785 parse_capability(imap, s);
786 } else if (!strcmp("ALERT", arg)) {
787 /* RFC2060 says that these messages MUST be displayed
788 * to the user
789 */
790 for (; isspace((unsigned char)*p); p++);
791 fprintf(stderr, "*** IMAP ALERT *** %s\n", p);
792 } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) {
793 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg)) ||
794 !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) {
795 fprintf(stderr, "IMAP error: malformed APPENDUID status\n");
796 return RESP_BAD;
797 }
798 }
799 return RESP_OK;
800 }
801
802 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
803 {
804 struct imap *imap = ctx->imap;
805 struct imap_cmd *cmdp, **pcmdp, *ncmdp;
806 char *cmd, *arg, *arg1, *p;
807 int n, resp, resp2, tag;
808
809 for (;;) {
810 if (buffer_gets(&imap->buf, &cmd))
811 return RESP_BAD;
812
813 arg = next_arg(&cmd);
814 if (*arg == '*') {
815 arg = next_arg(&cmd);
816 if (!arg) {
817 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
818 return RESP_BAD;
819 }
820
821 if (!strcmp("NAMESPACE", arg)) {
822 imap->ns_personal = parse_list(&cmd);
823 imap->ns_other = parse_list(&cmd);
824 imap->ns_shared = parse_list(&cmd);
825 } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) ||
826 !strcmp("NO", arg) || !strcmp("BYE", arg)) {
827 if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK)
828 return resp;
829 } else if (!strcmp("CAPABILITY", arg))
830 parse_capability(imap, cmd);
831 else if ((arg1 = next_arg(&cmd))) {
832 if (!strcmp("EXISTS", arg1))
833 ctx->gen.count = atoi(arg);
834 else if (!strcmp("RECENT", arg1))
835 ctx->gen.recent = atoi(arg);
836 } else {
837 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
838 return RESP_BAD;
839 }
840 } else if (!imap->in_progress) {
841 fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : "");
842 return RESP_BAD;
843 } else if (*arg == '+') {
844 /* This can happen only with the last command underway, as
845 it enforces a round-trip. */
846 cmdp = (struct imap_cmd *)((char *)imap->in_progress_append -
847 offsetof(struct imap_cmd, next));
848 if (cmdp->cb.data) {
849 n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen);
850 free(cmdp->cb.data);
851 cmdp->cb.data = NULL;
852 if (n != (int)cmdp->cb.dlen)
853 return RESP_BAD;
854 } else if (cmdp->cb.cont) {
855 if (cmdp->cb.cont(ctx, cmdp, cmd))
856 return RESP_BAD;
857 } else {
858 fprintf(stderr, "IMAP error: unexpected command continuation request\n");
859 return RESP_BAD;
860 }
861 if (socket_write(&imap->buf.sock, "\r\n", 2) != 2)
862 return RESP_BAD;
863 if (!cmdp->cb.cont)
864 imap->literal_pending = 0;
865 if (!tcmd)
866 return DRV_OK;
867 } else {
868 tag = atoi(arg);
869 for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next)
870 if (cmdp->tag == tag)
871 goto gottag;
872 fprintf(stderr, "IMAP error: unexpected tag %s\n", arg);
873 return RESP_BAD;
874 gottag:
875 if (!(*pcmdp = cmdp->next))
876 imap->in_progress_append = pcmdp;
877 imap->num_in_progress--;
878 if (cmdp->cb.cont || cmdp->cb.data)
879 imap->literal_pending = 0;
880 arg = next_arg(&cmd);
881 if (!strcmp("OK", arg))
882 resp = DRV_OK;
883 else {
884 if (!strcmp("NO", arg)) {
885 if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */
886 p = strchr(cmdp->cmd, '"');
887 if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", (int)(strchr(p + 1, '"') - p + 1), p)) {
888 resp = RESP_BAD;
889 goto normal;
890 }
891 /* not waiting here violates the spec, but a server that does not
892 grok this nonetheless violates it too. */
893 cmdp->cb.create = 0;
894 if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) {
895 resp = RESP_BAD;
896 goto normal;
897 }
898 free(cmdp->cmd);
899 free(cmdp);
900 if (!tcmd)
901 return 0; /* ignored */
902 if (cmdp == tcmd)
903 tcmd = ncmdp;
904 continue;
905 }
906 resp = RESP_NO;
907 } else /*if (!strcmp("BAD", arg))*/
908 resp = RESP_BAD;
909 fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n",
910 memcmp(cmdp->cmd, "LOGIN", 5) ?
911 cmdp->cmd : "LOGIN <user> <pass>",
912 arg, cmd ? cmd : "");
913 }
914 if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp)
915 resp = resp2;
916 normal:
917 if (cmdp->cb.done)
918 cmdp->cb.done(ctx, cmdp, resp);
919 free(cmdp->cb.data);
920 free(cmdp->cmd);
921 free(cmdp);
922 if (!tcmd || tcmd == cmdp)
923 return resp;
924 }
925 }
926 /* not reached */
927 }
928
929 static void imap_close_server(struct imap_store *ictx)
930 {
931 struct imap *imap = ictx->imap;
932
933 if (imap->buf.sock.fd[0] != -1) {
934 imap_exec(ictx, NULL, "LOGOUT");
935 socket_shutdown(&imap->buf.sock);
936 }
937 free_list(imap->ns_personal);
938 free_list(imap->ns_other);
939 free_list(imap->ns_shared);
940 free(imap);
941 }
942
943 static void imap_close_store(struct store *ctx)
944 {
945 imap_close_server((struct imap_store *)ctx);
946 free_generic_messages(ctx->msgs);
947 free(ctx);
948 }
949
950 #ifndef NO_OPENSSL
951
952 /*
953 * hexchar() and cram() functions are based on the code from the isync
954 * project (http://isync.sf.net/).
955 */
956 static char hexchar(unsigned int b)
957 {
958 return b < 10 ? '0' + b : 'a' + (b - 10);
959 }
960
961 #define ENCODED_SIZE(n) (4*((n+2)/3))
962 static char *cram(const char *challenge_64, const char *user, const char *pass)
963 {
964 int i, resp_len, encoded_len, decoded_len;
965 HMAC_CTX hmac;
966 unsigned char hash[16];
967 char hex[33];
968 char *response, *response_64, *challenge;
969
970 /*
971 * length of challenge_64 (i.e. base-64 encoded string) is a good
972 * enough upper bound for challenge (decoded result).
973 */
974 encoded_len = strlen(challenge_64);
975 challenge = xmalloc(encoded_len);
976 decoded_len = EVP_DecodeBlock((unsigned char *)challenge,
977 (unsigned char *)challenge_64, encoded_len);
978 if (decoded_len < 0)
979 die("invalid challenge %s", challenge_64);
980 HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5());
981 HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len);
982 HMAC_Final(&hmac, hash, NULL);
983 HMAC_CTX_cleanup(&hmac);
984
985 hex[32] = 0;
986 for (i = 0; i < 16; i++) {
987 hex[2 * i] = hexchar((hash[i] >> 4) & 0xf);
988 hex[2 * i + 1] = hexchar(hash[i] & 0xf);
989 }
990
991 /* response: "<user> <digest in hex>" */
992 resp_len = strlen(user) + 1 + strlen(hex) + 1;
993 response = xmalloc(resp_len);
994 sprintf(response, "%s %s", user, hex);
995
996 response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1);
997 encoded_len = EVP_EncodeBlock((unsigned char *)response_64,
998 (unsigned char *)response, resp_len);
999 if (encoded_len < 0)
1000 die("EVP_EncodeBlock error");
1001 response_64[encoded_len] = '\0';
1002 return (char *)response_64;
1003 }
1004
1005 #else
1006
1007 static char *cram(const char *challenge_64, const char *user, const char *pass)
1008 {
1009 die("If you want to use CRAM-MD5 authenticate method, "
1010 "you have to build git-imap-send with OpenSSL library.");
1011 }
1012
1013 #endif
1014
1015 static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt)
1016 {
1017 int ret;
1018 char *response;
1019
1020 response = cram(prompt, server.user, server.pass);
1021
1022 ret = socket_write(&ctx->imap->buf.sock, response, strlen(response));
1023 if (ret != strlen(response))
1024 return error("IMAP error: sending response failed");
1025
1026 free(response);
1027
1028 return 0;
1029 }
1030
1031 static struct store *imap_open_store(struct imap_server_conf *srvc)
1032 {
1033 struct imap_store *ctx;
1034 struct imap *imap;
1035 char *arg, *rsp;
1036 int s = -1, preauth;
1037
1038 ctx = xcalloc(sizeof(*ctx), 1);
1039
1040 ctx->imap = imap = xcalloc(sizeof(*imap), 1);
1041 imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1;
1042 imap->in_progress_append = &imap->in_progress;
1043
1044 /* open connection to IMAP server */
1045
1046 if (srvc->tunnel) {
1047 const char *argv[] = { srvc->tunnel, NULL };
1048 struct child_process tunnel = {NULL};
1049
1050 imap_info("Starting tunnel '%s'... ", srvc->tunnel);
1051
1052 tunnel.argv = argv;
1053 tunnel.use_shell = 1;
1054 tunnel.in = -1;
1055 tunnel.out = -1;
1056 if (start_command(&tunnel))
1057 die("cannot start proxy %s", argv[0]);
1058
1059 imap->buf.sock.fd[0] = tunnel.out;
1060 imap->buf.sock.fd[1] = tunnel.in;
1061
1062 imap_info("ok\n");
1063 } else {
1064 #ifndef NO_IPV6
1065 struct addrinfo hints, *ai0, *ai;
1066 int gai;
1067 char portstr[6];
1068
1069 snprintf(portstr, sizeof(portstr), "%d", srvc->port);
1070
1071 memset(&hints, 0, sizeof(hints));
1072 hints.ai_socktype = SOCK_STREAM;
1073 hints.ai_protocol = IPPROTO_TCP;
1074
1075 imap_info("Resolving %s... ", srvc->host);
1076 gai = getaddrinfo(srvc->host, portstr, &hints, &ai);
1077 if (gai) {
1078 fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai));
1079 goto bail;
1080 }
1081 imap_info("ok\n");
1082
1083 for (ai0 = ai; ai; ai = ai->ai_next) {
1084 char addr[NI_MAXHOST];
1085
1086 s = socket(ai->ai_family, ai->ai_socktype,
1087 ai->ai_protocol);
1088 if (s < 0)
1089 continue;
1090
1091 getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1092 sizeof(addr), NULL, 0, NI_NUMERICHOST);
1093 imap_info("Connecting to [%s]:%s... ", addr, portstr);
1094
1095 if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
1096 close(s);
1097 s = -1;
1098 perror("connect");
1099 continue;
1100 }
1101
1102 break;
1103 }
1104 freeaddrinfo(ai0);
1105 #else /* NO_IPV6 */
1106 struct hostent *he;
1107 struct sockaddr_in addr;
1108
1109 memset(&addr, 0, sizeof(addr));
1110 addr.sin_port = htons(srvc->port);
1111 addr.sin_family = AF_INET;
1112
1113 imap_info("Resolving %s... ", srvc->host);
1114 he = gethostbyname(srvc->host);
1115 if (!he) {
1116 perror("gethostbyname");
1117 goto bail;
1118 }
1119 imap_info("ok\n");
1120
1121 addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]);
1122
1123 s = socket(PF_INET, SOCK_STREAM, 0);
1124
1125 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
1126 if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) {
1127 close(s);
1128 s = -1;
1129 perror("connect");
1130 }
1131 #endif
1132 if (s < 0) {
1133 fputs("Error: unable to connect to server.\n", stderr);
1134 goto bail;
1135 }
1136
1137 imap->buf.sock.fd[0] = s;
1138 imap->buf.sock.fd[1] = dup(s);
1139
1140 if (srvc->use_ssl &&
1141 ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) {
1142 close(s);
1143 goto bail;
1144 }
1145 imap_info("ok\n");
1146 }
1147
1148 /* read the greeting string */
1149 if (buffer_gets(&imap->buf, &rsp)) {
1150 fprintf(stderr, "IMAP error: no greeting response\n");
1151 goto bail;
1152 }
1153 arg = next_arg(&rsp);
1154 if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) {
1155 fprintf(stderr, "IMAP error: invalid greeting response\n");
1156 goto bail;
1157 }
1158 preauth = 0;
1159 if (!strcmp("PREAUTH", arg))
1160 preauth = 1;
1161 else if (strcmp("OK", arg) != 0) {
1162 fprintf(stderr, "IMAP error: unknown greeting response\n");
1163 goto bail;
1164 }
1165 parse_response_code(ctx, NULL, rsp);
1166 if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1167 goto bail;
1168
1169 if (!preauth) {
1170 #ifndef NO_OPENSSL
1171 if (!srvc->use_ssl && CAP(STARTTLS)) {
1172 if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK)
1173 goto bail;
1174 if (ssl_socket_connect(&imap->buf.sock, 1,
1175 srvc->ssl_verify))
1176 goto bail;
1177 /* capabilities may have changed, so get the new capabilities */
1178 if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1179 goto bail;
1180 }
1181 #endif
1182 imap_info("Logging in...\n");
1183 if (!srvc->user) {
1184 fprintf(stderr, "Skipping server %s, no user\n", srvc->host);
1185 goto bail;
1186 }
1187 if (!srvc->pass) {
1188 struct strbuf prompt = STRBUF_INIT;
1189 strbuf_addf(&prompt, "Password (%s@%s): ", srvc->user, srvc->host);
1190 arg = git_getpass(prompt.buf);
1191 strbuf_release(&prompt);
1192 if (!*arg) {
1193 fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host);
1194 goto bail;
1195 }
1196 /*
1197 * getpass() returns a pointer to a static buffer. make a copy
1198 * for long term storage.
1199 */
1200 srvc->pass = xstrdup(arg);
1201 }
1202 if (CAP(NOLOGIN)) {
1203 fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host);
1204 goto bail;
1205 }
1206
1207 if (srvc->auth_method) {
1208 struct imap_cmd_cb cb;
1209
1210 if (!strcmp(srvc->auth_method, "CRAM-MD5")) {
1211 if (!CAP(AUTH_CRAM_MD5)) {
1212 fprintf(stderr, "You specified"
1213 "CRAM-MD5 as authentication method, "
1214 "but %s doesn't support it.\n", srvc->host);
1215 goto bail;
1216 }
1217 /* CRAM-MD5 */
1218
1219 memset(&cb, 0, sizeof(cb));
1220 cb.cont = auth_cram_md5;
1221 if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) {
1222 fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n");
1223 goto bail;
1224 }
1225 } else {
1226 fprintf(stderr, "Unknown authentication method:%s\n", srvc->host);
1227 goto bail;
1228 }
1229 } else {
1230 if (!imap->buf.sock.ssl)
1231 imap_warn("*** IMAP Warning *** Password is being "
1232 "sent in the clear\n");
1233 if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) {
1234 fprintf(stderr, "IMAP error: LOGIN failed\n");
1235 goto bail;
1236 }
1237 }
1238 } /* !preauth */
1239
1240 ctx->prefix = "";
1241 ctx->trashnc = 1;
1242 return (struct store *)ctx;
1243
1244 bail:
1245 imap_close_store(&ctx->gen);
1246 return NULL;
1247 }
1248
1249 static int imap_make_flags(int flags, char *buf)
1250 {
1251 const char *s;
1252 unsigned i, d;
1253
1254 for (i = d = 0; i < ARRAY_SIZE(Flags); i++)
1255 if (flags & (1 << i)) {
1256 buf[d++] = ' ';
1257 buf[d++] = '\\';
1258 for (s = Flags[i]; *s; s++)
1259 buf[d++] = *s;
1260 }
1261 buf[0] = '(';
1262 buf[d++] = ')';
1263 return d;
1264 }
1265
1266 static void lf_to_crlf(struct strbuf *msg)
1267 {
1268 size_t new_len;
1269 char *new;
1270 int i, j, lfnum = 0;
1271
1272 if (msg->buf[0] == '\n')
1273 lfnum++;
1274 for (i = 1; i < msg->len; i++) {
1275 if (msg->buf[i - 1] != '\r' && msg->buf[i] == '\n')
1276 lfnum++;
1277 }
1278
1279 new_len = msg->len + lfnum;
1280 new = xmalloc(new_len + 1);
1281 if (msg->buf[0] == '\n') {
1282 new[0] = '\r';
1283 new[1] = '\n';
1284 i = 1;
1285 j = 2;
1286 } else {
1287 new[0] = msg->buf[0];
1288 i = 1;
1289 j = 1;
1290 }
1291 for ( ; i < msg->len; i++) {
1292 if (msg->buf[i] != '\n') {
1293 new[j++] = msg->buf[i];
1294 continue;
1295 }
1296 if (msg->buf[i - 1] != '\r')
1297 new[j++] = '\r';
1298 /* otherwise it already had CR before */
1299 new[j++] = '\n';
1300 }
1301 strbuf_attach(msg, new, new_len, new_len + 1);
1302 }
1303
1304 /*
1305 * Store msg to IMAP. Also detach and free the data from msg->data,
1306 * leaving msg->data empty.
1307 */
1308 static int imap_store_msg(struct store *gctx, struct msg_data *msg)
1309 {
1310 struct imap_store *ctx = (struct imap_store *)gctx;
1311 struct imap *imap = ctx->imap;
1312 struct imap_cmd_cb cb;
1313 const char *prefix, *box;
1314 int ret, d;
1315 char flagstr[128];
1316
1317 lf_to_crlf(&msg->data);
1318 memset(&cb, 0, sizeof(cb));
1319
1320 cb.dlen = msg->data.len;
1321 cb.data = strbuf_detach(&msg->data, NULL);
1322
1323 d = 0;
1324 if (msg->flags) {
1325 d = imap_make_flags(msg->flags, flagstr);
1326 flagstr[d++] = ' ';
1327 }
1328 flagstr[d] = 0;
1329
1330 box = gctx->name;
1331 prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix;
1332 cb.create = 0;
1333 ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" %s", prefix, box, flagstr);
1334 imap->caps = imap->rcaps;
1335 if (ret != DRV_OK)
1336 return ret;
1337 gctx->count++;
1338
1339 return DRV_OK;
1340 }
1341
1342 static void wrap_in_html(struct strbuf *msg)
1343 {
1344 struct strbuf buf = STRBUF_INIT;
1345 static char *content_type = "Content-Type: text/html;\n";
1346 static char *pre_open = "<pre>\n";
1347 static char *pre_close = "</pre>\n";
1348 const char *body = strstr(msg->buf, "\n\n");
1349
1350 if (!body)
1351 return; /* Headers but no body; no wrapping needed */
1352
1353 body += 2;
1354
1355 strbuf_add(&buf, msg->buf, body - msg->buf - 1);
1356 strbuf_addstr(&buf, content_type);
1357 strbuf_addch(&buf, '\n');
1358 strbuf_addstr(&buf, pre_open);
1359 strbuf_addstr_xml_quoted(&buf, body);
1360 strbuf_addstr(&buf, pre_close);
1361
1362 strbuf_release(msg);
1363 *msg = buf;
1364 }
1365
1366 #define CHUNKSIZE 0x1000
1367
1368 static int read_message(FILE *f, struct strbuf *all_msgs)
1369 {
1370 do {
1371 if (strbuf_fread(all_msgs, CHUNKSIZE, f) <= 0)
1372 break;
1373 } while (!feof(f));
1374
1375 return ferror(f) ? -1 : 0;
1376 }
1377
1378 static int count_messages(struct strbuf *all_msgs)
1379 {
1380 int count = 0;
1381 char *p = all_msgs->buf;
1382
1383 while (1) {
1384 if (!prefixcmp(p, "From ")) {
1385 p = strstr(p+5, "\nFrom: ");
1386 if (!p) break;
1387 p = strstr(p+7, "\nDate: ");
1388 if (!p) break;
1389 p = strstr(p+7, "\nSubject: ");
1390 if (!p) break;
1391 p += 10;
1392 count++;
1393 }
1394 p = strstr(p+5, "\nFrom ");
1395 if (!p)
1396 break;
1397 p++;
1398 }
1399 return count;
1400 }
1401
1402 /*
1403 * Copy the next message from all_msgs, starting at offset *ofs, to
1404 * msg. Update *ofs to the start of the following message. Return
1405 * true iff a message was successfully copied.
1406 */
1407 static int split_msg(struct strbuf *all_msgs, struct strbuf *msg, int *ofs)
1408 {
1409 char *p, *data;
1410 size_t len;
1411
1412 if (*ofs >= all_msgs->len)
1413 return 0;
1414
1415 data = &all_msgs->buf[*ofs];
1416 len = all_msgs->len - *ofs;
1417
1418 if (len < 5 || prefixcmp(data, "From "))
1419 return 0;
1420
1421 p = strchr(data, '\n');
1422 if (p) {
1423 p++;
1424 len -= p - data;
1425 *ofs += p - data;
1426 data = p;
1427 }
1428
1429 p = strstr(data, "\nFrom ");
1430 if (p)
1431 len = &p[1] - data;
1432
1433 strbuf_add(msg, data, len);
1434 *ofs += len;
1435 return 1;
1436 }
1437
1438 static char *imap_folder;
1439
1440 static int git_imap_config(const char *key, const char *val, void *cb)
1441 {
1442 char imap_key[] = "imap.";
1443
1444 if (strncmp(key, imap_key, sizeof imap_key - 1))
1445 return 0;
1446
1447 key += sizeof imap_key - 1;
1448
1449 /* check booleans first, and barf on others */
1450 if (!strcmp("sslverify", key))
1451 server.ssl_verify = git_config_bool(key, val);
1452 else if (!strcmp("preformattedhtml", key))
1453 server.use_html = git_config_bool(key, val);
1454 else if (!val)
1455 return config_error_nonbool(key);
1456
1457 if (!strcmp("folder", key)) {
1458 imap_folder = xstrdup(val);
1459 } else if (!strcmp("host", key)) {
1460 if (!prefixcmp(val, "imap:"))
1461 val += 5;
1462 else if (!prefixcmp(val, "imaps:")) {
1463 val += 6;
1464 server.use_ssl = 1;
1465 }
1466 if (!prefixcmp(val, "//"))
1467 val += 2;
1468 server.host = xstrdup(val);
1469 } else if (!strcmp("user", key))
1470 server.user = xstrdup(val);
1471 else if (!strcmp("pass", key))
1472 server.pass = xstrdup(val);
1473 else if (!strcmp("port", key))
1474 server.port = git_config_int(key, val);
1475 else if (!strcmp("tunnel", key))
1476 server.tunnel = xstrdup(val);
1477 else if (!strcmp("authmethod", key))
1478 server.auth_method = xstrdup(val);
1479
1480 return 0;
1481 }
1482
1483 int main(int argc, char **argv)
1484 {
1485 struct strbuf all_msgs = STRBUF_INIT;
1486 struct msg_data msg = {STRBUF_INIT, 0};
1487 struct store *ctx = NULL;
1488 int ofs = 0;
1489 int r;
1490 int total, n = 0;
1491 int nongit_ok;
1492
1493 git_extract_argv0_path(argv[0]);
1494
1495 git_setup_gettext();
1496
1497 if (argc != 1)
1498 usage(imap_send_usage);
1499
1500 setup_git_directory_gently(&nongit_ok);
1501 git_config(git_imap_config, NULL);
1502
1503 if (!server.port)
1504 server.port = server.use_ssl ? 993 : 143;
1505
1506 if (!imap_folder) {
1507 fprintf(stderr, "no imap store specified\n");
1508 return 1;
1509 }
1510 if (!server.host) {
1511 if (!server.tunnel) {
1512 fprintf(stderr, "no imap host specified\n");
1513 return 1;
1514 }
1515 server.host = "tunnel";
1516 }
1517
1518 /* read the messages */
1519 if (read_message(stdin, &all_msgs)) {
1520 fprintf(stderr, "error reading input\n");
1521 return 1;
1522 }
1523
1524 if (all_msgs.len == 0) {
1525 fprintf(stderr, "nothing to send\n");
1526 return 1;
1527 }
1528
1529 total = count_messages(&all_msgs);
1530 if (!total) {
1531 fprintf(stderr, "no messages to send\n");
1532 return 1;
1533 }
1534
1535 /* write it to the imap server */
1536 ctx = imap_open_store(&server);
1537 if (!ctx) {
1538 fprintf(stderr, "failed to open store\n");
1539 return 1;
1540 }
1541
1542 fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : "");
1543 ctx->name = imap_folder;
1544 while (1) {
1545 unsigned percent = n * 100 / total;
1546
1547 fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total);
1548 if (!split_msg(&all_msgs, &msg.data, &ofs))
1549 break;
1550 if (server.use_html)
1551 wrap_in_html(&msg.data);
1552 r = imap_store_msg(ctx, &msg);
1553 if (r != DRV_OK)
1554 break;
1555 n++;
1556 }
1557 fprintf(stderr, "\n");
1558
1559 imap_close_store(ctx);
1560
1561 return 0;
1562 }
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