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Merge branch 'jc/checkout-m-twoway' into maint
[git/mjg.git] / imap-send.c
blob80e0e8c051ad26a3a1353a4beb21e5c6ebdd6823
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 #ifdef NO_OPENSSL
29 typedef void *SSL;
30 #else
31 #include <openssl/evp.h>
32 #include <openssl/hmac.h>
33 #endif
34
35 struct store_conf {
36 char *name;
37 const char *path; /* should this be here? its interpretation is driver-specific */
38 char *map_inbox;
39 char *trash;
40 unsigned max_size; /* off_t is overkill */
41 unsigned trash_remote_new:1, trash_only_new:1;
42 };
43
44 struct string_list {
45 struct string_list *next;
46 char string[1];
47 };
48
49 struct channel_conf {
50 struct channel_conf *next;
51 char *name;
52 struct store_conf *master, *slave;
53 char *master_name, *slave_name;
54 char *sync_state;
55 struct string_list *patterns;
56 int mops, sops;
57 unsigned max_messages; /* for slave only */
58 };
59
60 struct group_conf {
61 struct group_conf *next;
62 char *name;
63 struct string_list *channels;
64 };
65
66 /* For message->status */
67 #define M_RECENT (1<<0) /* unsyncable flag; maildir_* depend on this being 1<<0 */
68 #define M_DEAD (1<<1) /* expunged */
69 #define M_FLAGS (1<<2) /* flags fetched */
70
71 struct message {
72 struct message *next;
73 /* struct string_list *keywords; */
74 size_t size; /* zero implies "not fetched" */
75 int uid;
76 unsigned char flags, status;
77 };
78
79 struct store {
80 struct store_conf *conf; /* foreign */
81
82 /* currently open mailbox */
83 const char *name; /* foreign! maybe preset? */
84 char *path; /* own */
85 struct message *msgs; /* own */
86 int uidvalidity;
87 unsigned char opts; /* maybe preset? */
88 /* note that the following do _not_ reflect stats from msgs, but mailbox totals */
89 int count; /* # of messages */
90 int recent; /* # of recent messages - don't trust this beyond the initial read */
91 };
92
93 struct msg_data {
94 char *data;
95 int len;
96 unsigned char flags;
97 };
98
99 static const char imap_send_usage[] = "git imap-send < <mbox>";
100
101 #undef DRV_OK
102 #define DRV_OK 0
103 #define DRV_MSG_BAD -1
104 #define DRV_BOX_BAD -2
105 #define DRV_STORE_BAD -3
106
107 static int Verbose, Quiet;
108
109 __attribute__((format (printf, 1, 2)))
110 static void imap_info(const char *, ...);
111 __attribute__((format (printf, 1, 2)))
112 static void imap_warn(const char *, ...);
113
114 static char *next_arg(char **);
115
116 static void free_generic_messages(struct message *);
117
118 __attribute__((format (printf, 3, 4)))
119 static int nfsnprintf(char *buf, int blen, const char *fmt, ...);
120
121 static int nfvasprintf(char **strp, const char *fmt, va_list ap)
122 {
123 int len;
124 char tmp[8192];
125
126 len = vsnprintf(tmp, sizeof(tmp), fmt, ap);
127 if (len < 0)
128 die("Fatal: Out of memory");
129 if (len >= sizeof(tmp))
130 die("imap command overflow!");
131 *strp = xmemdupz(tmp, len);
132 return len;
133 }
134
135 struct imap_server_conf {
136 char *name;
137 char *tunnel;
138 char *host;
139 int port;
140 char *user;
141 char *pass;
142 int use_ssl;
143 int ssl_verify;
144 int use_html;
145 char *auth_method;
146 };
147
148 static struct imap_server_conf server = {
149 NULL, /* name */
150 NULL, /* tunnel */
151 NULL, /* host */
152 0, /* port */
153 NULL, /* user */
154 NULL, /* pass */
155 0, /* use_ssl */
156 1, /* ssl_verify */
157 0, /* use_html */
158 NULL, /* auth_method */
159 };
160
161 struct imap_store_conf {
162 struct store_conf gen;
163 struct imap_server_conf *server;
164 };
165
166 #define NIL (void *)0x1
167 #define LIST (void *)0x2
168
169 struct imap_list {
170 struct imap_list *next, *child;
171 char *val;
172 int len;
173 };
174
175 struct imap_socket {
176 int fd[2];
177 SSL *ssl;
178 };
179
180 struct imap_buffer {
181 struct imap_socket sock;
182 int bytes;
183 int offset;
184 char buf[1024];
185 };
186
187 struct imap_cmd;
188
189 struct imap {
190 int uidnext; /* from SELECT responses */
191 struct imap_list *ns_personal, *ns_other, *ns_shared; /* NAMESPACE info */
192 unsigned caps, rcaps; /* CAPABILITY results */
193 /* command queue */
194 int nexttag, num_in_progress, literal_pending;
195 struct imap_cmd *in_progress, **in_progress_append;
196 struct imap_buffer buf; /* this is BIG, so put it last */
197 };
198
199 struct imap_store {
200 struct store gen;
201 int uidvalidity;
202 struct imap *imap;
203 const char *prefix;
204 unsigned /*currentnc:1,*/ trashnc:1;
205 };
206
207 struct imap_cmd_cb {
208 int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt);
209 void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response);
210 void *ctx;
211 char *data;
212 int dlen;
213 int uid;
214 unsigned create:1, trycreate:1;
215 };
216
217 struct imap_cmd {
218 struct imap_cmd *next;
219 struct imap_cmd_cb cb;
220 char *cmd;
221 int tag;
222 };
223
224 #define CAP(cap) (imap->caps & (1 << (cap)))
225
226 enum CAPABILITY {
227 NOLOGIN = 0,
228 UIDPLUS,
229 LITERALPLUS,
230 NAMESPACE,
231 STARTTLS,
232 AUTH_CRAM_MD5
233 };
234
235 static const char *cap_list[] = {
236 "LOGINDISABLED",
237 "UIDPLUS",
238 "LITERAL+",
239 "NAMESPACE",
240 "STARTTLS",
241 "AUTH=CRAM-MD5",
242 };
243
244 #define RESP_OK 0
245 #define RESP_NO 1
246 #define RESP_BAD 2
247
248 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd);
249
250
251 static const char *Flags[] = {
252 "Draft",
253 "Flagged",
254 "Answered",
255 "Seen",
256 "Deleted",
257 };
258
259 #ifndef NO_OPENSSL
260 static void ssl_socket_perror(const char *func)
261 {
262 fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL));
263 }
264 #endif
265
266 static void socket_perror(const char *func, struct imap_socket *sock, int ret)
267 {
268 #ifndef NO_OPENSSL
269 if (sock->ssl) {
270 int sslerr = SSL_get_error(sock->ssl, ret);
271 switch (sslerr) {
272 case SSL_ERROR_NONE:
273 break;
274 case SSL_ERROR_SYSCALL:
275 perror("SSL_connect");
276 break;
277 default:
278 ssl_socket_perror("SSL_connect");
279 break;
280 }
281 } else
282 #endif
283 {
284 if (ret < 0)
285 perror(func);
286 else
287 fprintf(stderr, "%s: unexpected EOF\n", func);
288 }
289 }
290
291 static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify)
292 {
293 #ifdef NO_OPENSSL
294 fprintf(stderr, "SSL requested but SSL support not compiled in\n");
295 return -1;
296 #else
297 #if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
298 const SSL_METHOD *meth;
299 #else
300 SSL_METHOD *meth;
301 #endif
302 SSL_CTX *ctx;
303 int ret;
304
305 SSL_library_init();
306 SSL_load_error_strings();
307
308 if (use_tls_only)
309 meth = TLSv1_method();
310 else
311 meth = SSLv23_method();
312
313 if (!meth) {
314 ssl_socket_perror("SSLv23_method");
315 return -1;
316 }
317
318 ctx = SSL_CTX_new(meth);
319
320 if (verify)
321 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
322
323 if (!SSL_CTX_set_default_verify_paths(ctx)) {
324 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
325 return -1;
326 }
327 sock->ssl = SSL_new(ctx);
328 if (!sock->ssl) {
329 ssl_socket_perror("SSL_new");
330 return -1;
331 }
332 if (!SSL_set_rfd(sock->ssl, sock->fd[0])) {
333 ssl_socket_perror("SSL_set_rfd");
334 return -1;
335 }
336 if (!SSL_set_wfd(sock->ssl, sock->fd[1])) {
337 ssl_socket_perror("SSL_set_wfd");
338 return -1;
339 }
340
341 ret = SSL_connect(sock->ssl);
342 if (ret <= 0) {
343 socket_perror("SSL_connect", sock, ret);
344 return -1;
345 }
346
347 return 0;
348 #endif
349 }
350
351 static int socket_read(struct imap_socket *sock, char *buf, int len)
352 {
353 ssize_t n;
354 #ifndef NO_OPENSSL
355 if (sock->ssl)
356 n = SSL_read(sock->ssl, buf, len);
357 else
358 #endif
359 n = xread(sock->fd[0], buf, len);
360 if (n <= 0) {
361 socket_perror("read", sock, n);
362 close(sock->fd[0]);
363 close(sock->fd[1]);
364 sock->fd[0] = sock->fd[1] = -1;
365 }
366 return n;
367 }
368
369 static int socket_write(struct imap_socket *sock, const char *buf, int len)
370 {
371 int n;
372 #ifndef NO_OPENSSL
373 if (sock->ssl)
374 n = SSL_write(sock->ssl, buf, len);
375 else
376 #endif
377 n = write_in_full(sock->fd[1], buf, len);
378 if (n != len) {
379 socket_perror("write", sock, n);
380 close(sock->fd[0]);
381 close(sock->fd[1]);
382 sock->fd[0] = sock->fd[1] = -1;
383 }
384 return n;
385 }
386
387 static void socket_shutdown(struct imap_socket *sock)
388 {
389 #ifndef NO_OPENSSL
390 if (sock->ssl) {
391 SSL_shutdown(sock->ssl);
392 SSL_free(sock->ssl);
393 }
394 #endif
395 close(sock->fd[0]);
396 close(sock->fd[1]);
397 }
398
399 /* simple line buffering */
400 static int buffer_gets(struct imap_buffer *b, char **s)
401 {
402 int n;
403 int start = b->offset;
404
405 *s = b->buf + start;
406
407 for (;;) {
408 /* make sure we have enough data to read the \r\n sequence */
409 if (b->offset + 1 >= b->bytes) {
410 if (start) {
411 /* shift down used bytes */
412 *s = b->buf;
413
414 assert(start <= b->bytes);
415 n = b->bytes - start;
416
417 if (n)
418 memmove(b->buf, b->buf + start, n);
419 b->offset -= start;
420 b->bytes = n;
421 start = 0;
422 }
423
424 n = socket_read(&b->sock, b->buf + b->bytes,
425 sizeof(b->buf) - b->bytes);
426
427 if (n <= 0)
428 return -1;
429
430 b->bytes += n;
431 }
432
433 if (b->buf[b->offset] == '\r') {
434 assert(b->offset + 1 < b->bytes);
435 if (b->buf[b->offset + 1] == '\n') {
436 b->buf[b->offset] = 0; /* terminate the string */
437 b->offset += 2; /* next line */
438 if (Verbose)
439 puts(*s);
440 return 0;
441 }
442 }
443
444 b->offset++;
445 }
446 /* not reached */
447 }
448
449 static void imap_info(const char *msg, ...)
450 {
451 va_list va;
452
453 if (!Quiet) {
454 va_start(va, msg);
455 vprintf(msg, va);
456 va_end(va);
457 fflush(stdout);
458 }
459 }
460
461 static void imap_warn(const char *msg, ...)
462 {
463 va_list va;
464
465 if (Quiet < 2) {
466 va_start(va, msg);
467 vfprintf(stderr, msg, va);
468 va_end(va);
469 }
470 }
471
472 static char *next_arg(char **s)
473 {
474 char *ret;
475
476 if (!s || !*s)
477 return NULL;
478 while (isspace((unsigned char) **s))
479 (*s)++;
480 if (!**s) {
481 *s = NULL;
482 return NULL;
483 }
484 if (**s == '"') {
485 ++*s;
486 ret = *s;
487 *s = strchr(*s, '"');
488 } else {
489 ret = *s;
490 while (**s && !isspace((unsigned char) **s))
491 (*s)++;
492 }
493 if (*s) {
494 if (**s)
495 *(*s)++ = 0;
496 if (!**s)
497 *s = NULL;
498 }
499 return ret;
500 }
501
502 static void free_generic_messages(struct message *msgs)
503 {
504 struct message *tmsg;
505
506 for (; msgs; msgs = tmsg) {
507 tmsg = msgs->next;
508 free(msgs);
509 }
510 }
511
512 static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
513 {
514 int ret;
515 va_list va;
516
517 va_start(va, fmt);
518 if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
519 die("Fatal: buffer too small. Please report a bug.");
520 va_end(va);
521 return ret;
522 }
523
524 static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
525 struct imap_cmd_cb *cb,
526 const char *fmt, va_list ap)
527 {
528 struct imap *imap = ctx->imap;
529 struct imap_cmd *cmd;
530 int n, bufl;
531 char buf[1024];
532
533 cmd = xmalloc(sizeof(struct imap_cmd));
534 nfvasprintf(&cmd->cmd, fmt, ap);
535 cmd->tag = ++imap->nexttag;
536
537 if (cb)
538 cmd->cb = *cb;
539 else
540 memset(&cmd->cb, 0, sizeof(cmd->cb));
541
542 while (imap->literal_pending)
543 get_cmd_result(ctx, NULL);
544
545 if (!cmd->cb.data)
546 bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd);
547 else
548 bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n",
549 cmd->tag, cmd->cmd, cmd->cb.dlen,
550 CAP(LITERALPLUS) ? "+" : "");
551
552 if (Verbose) {
553 if (imap->num_in_progress)
554 printf("(%d in progress) ", imap->num_in_progress);
555 if (memcmp(cmd->cmd, "LOGIN", 5))
556 printf(">>> %s", buf);
557 else
558 printf(">>> %d LOGIN <user> <pass>\n", cmd->tag);
559 }
560 if (socket_write(&imap->buf.sock, buf, bufl) != bufl) {
561 free(cmd->cmd);
562 free(cmd);
563 if (cb)
564 free(cb->data);
565 return NULL;
566 }
567 if (cmd->cb.data) {
568 if (CAP(LITERALPLUS)) {
569 n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen);
570 free(cmd->cb.data);
571 if (n != cmd->cb.dlen ||
572 socket_write(&imap->buf.sock, "\r\n", 2) != 2) {
573 free(cmd->cmd);
574 free(cmd);
575 return NULL;
576 }
577 cmd->cb.data = NULL;
578 } else
579 imap->literal_pending = 1;
580 } else if (cmd->cb.cont)
581 imap->literal_pending = 1;
582 cmd->next = NULL;
583 *imap->in_progress_append = cmd;
584 imap->in_progress_append = &cmd->next;
585 imap->num_in_progress++;
586 return cmd;
587 }
588
589 __attribute__((format (printf, 3, 4)))
590 static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx,
591 struct imap_cmd_cb *cb,
592 const char *fmt, ...)
593 {
594 struct imap_cmd *ret;
595 va_list ap;
596
597 va_start(ap, fmt);
598 ret = v_issue_imap_cmd(ctx, cb, fmt, ap);
599 va_end(ap);
600 return ret;
601 }
602
603 __attribute__((format (printf, 3, 4)))
604 static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb,
605 const char *fmt, ...)
606 {
607 va_list ap;
608 struct imap_cmd *cmdp;
609
610 va_start(ap, fmt);
611 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
612 va_end(ap);
613 if (!cmdp)
614 return RESP_BAD;
615
616 return get_cmd_result(ctx, cmdp);
617 }
618
619 __attribute__((format (printf, 3, 4)))
620 static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb,
621 const char *fmt, ...)
622 {
623 va_list ap;
624 struct imap_cmd *cmdp;
625
626 va_start(ap, fmt);
627 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
628 va_end(ap);
629 if (!cmdp)
630 return DRV_STORE_BAD;
631
632 switch (get_cmd_result(ctx, cmdp)) {
633 case RESP_BAD: return DRV_STORE_BAD;
634 case RESP_NO: return DRV_MSG_BAD;
635 default: return DRV_OK;
636 }
637 }
638
639 static int is_atom(struct imap_list *list)
640 {
641 return list && list->val && list->val != NIL && list->val != LIST;
642 }
643
644 static int is_list(struct imap_list *list)
645 {
646 return list && list->val == LIST;
647 }
648
649 static void free_list(struct imap_list *list)
650 {
651 struct imap_list *tmp;
652
653 for (; list; list = tmp) {
654 tmp = list->next;
655 if (is_list(list))
656 free_list(list->child);
657 else if (is_atom(list))
658 free(list->val);
659 free(list);
660 }
661 }
662
663 static int parse_imap_list_l(struct imap *imap, char **sp, struct imap_list **curp, int level)
664 {
665 struct imap_list *cur;
666 char *s = *sp, *p;
667 int n, bytes;
668
669 for (;;) {
670 while (isspace((unsigned char)*s))
671 s++;
672 if (level && *s == ')') {
673 s++;
674 break;
675 }
676 *curp = cur = xmalloc(sizeof(*cur));
677 curp = &cur->next;
678 cur->val = NULL; /* for clean bail */
679 if (*s == '(') {
680 /* sublist */
681 s++;
682 cur->val = LIST;
683 if (parse_imap_list_l(imap, &s, &cur->child, level + 1))
684 goto bail;
685 } else if (imap && *s == '{') {
686 /* literal */
687 bytes = cur->len = strtol(s + 1, &s, 10);
688 if (*s != '}')
689 goto bail;
690
691 s = cur->val = xmalloc(cur->len);
692
693 /* dump whats left over in the input buffer */
694 n = imap->buf.bytes - imap->buf.offset;
695
696 if (n > bytes)
697 /* the entire message fit in the buffer */
698 n = bytes;
699
700 memcpy(s, imap->buf.buf + imap->buf.offset, n);
701 s += n;
702 bytes -= n;
703
704 /* mark that we used part of the buffer */
705 imap->buf.offset += n;
706
707 /* now read the rest of the message */
708 while (bytes > 0) {
709 if ((n = socket_read(&imap->buf.sock, s, bytes)) <= 0)
710 goto bail;
711 s += n;
712 bytes -= n;
713 }
714
715 if (buffer_gets(&imap->buf, &s))
716 goto bail;
717 } else if (*s == '"') {
718 /* quoted string */
719 s++;
720 p = s;
721 for (; *s != '"'; s++)
722 if (!*s)
723 goto bail;
724 cur->len = s - p;
725 s++;
726 cur->val = xmemdupz(p, cur->len);
727 } else {
728 /* atom */
729 p = s;
730 for (; *s && !isspace((unsigned char)*s); s++)
731 if (level && *s == ')')
732 break;
733 cur->len = s - p;
734 if (cur->len == 3 && !memcmp("NIL", p, 3))
735 cur->val = NIL;
736 else
737 cur->val = xmemdupz(p, cur->len);
738 }
739
740 if (!level)
741 break;
742 if (!*s)
743 goto bail;
744 }
745 *sp = s;
746 *curp = NULL;
747 return 0;
748
749 bail:
750 *curp = NULL;
751 return -1;
752 }
753
754 static struct imap_list *parse_imap_list(struct imap *imap, char **sp)
755 {
756 struct imap_list *head;
757
758 if (!parse_imap_list_l(imap, sp, &head, 0))
759 return head;
760 free_list(head);
761 return NULL;
762 }
763
764 static struct imap_list *parse_list(char **sp)
765 {
766 return parse_imap_list(NULL, sp);
767 }
768
769 static void parse_capability(struct imap *imap, char *cmd)
770 {
771 char *arg;
772 unsigned i;
773
774 imap->caps = 0x80000000;
775 while ((arg = next_arg(&cmd)))
776 for (i = 0; i < ARRAY_SIZE(cap_list); i++)
777 if (!strcmp(cap_list[i], arg))
778 imap->caps |= 1 << i;
779 imap->rcaps = imap->caps;
780 }
781
782 static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
783 char *s)
784 {
785 struct imap *imap = ctx->imap;
786 char *arg, *p;
787
788 if (*s != '[')
789 return RESP_OK; /* no response code */
790 s++;
791 if (!(p = strchr(s, ']'))) {
792 fprintf(stderr, "IMAP error: malformed response code\n");
793 return RESP_BAD;
794 }
795 *p++ = 0;
796 arg = next_arg(&s);
797 if (!strcmp("UIDVALIDITY", arg)) {
798 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg))) {
799 fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n");
800 return RESP_BAD;
801 }
802 } else if (!strcmp("UIDNEXT", arg)) {
803 if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) {
804 fprintf(stderr, "IMAP error: malformed NEXTUID status\n");
805 return RESP_BAD;
806 }
807 } else if (!strcmp("CAPABILITY", arg)) {
808 parse_capability(imap, s);
809 } else if (!strcmp("ALERT", arg)) {
810 /* RFC2060 says that these messages MUST be displayed
811 * to the user
812 */
813 for (; isspace((unsigned char)*p); p++);
814 fprintf(stderr, "*** IMAP ALERT *** %s\n", p);
815 } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) {
816 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg)) ||
817 !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) {
818 fprintf(stderr, "IMAP error: malformed APPENDUID status\n");
819 return RESP_BAD;
820 }
821 }
822 return RESP_OK;
823 }
824
825 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
826 {
827 struct imap *imap = ctx->imap;
828 struct imap_cmd *cmdp, **pcmdp, *ncmdp;
829 char *cmd, *arg, *arg1, *p;
830 int n, resp, resp2, tag;
831
832 for (;;) {
833 if (buffer_gets(&imap->buf, &cmd))
834 return RESP_BAD;
835
836 arg = next_arg(&cmd);
837 if (*arg == '*') {
838 arg = next_arg(&cmd);
839 if (!arg) {
840 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
841 return RESP_BAD;
842 }
843
844 if (!strcmp("NAMESPACE", arg)) {
845 imap->ns_personal = parse_list(&cmd);
846 imap->ns_other = parse_list(&cmd);
847 imap->ns_shared = parse_list(&cmd);
848 } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) ||
849 !strcmp("NO", arg) || !strcmp("BYE", arg)) {
850 if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK)
851 return resp;
852 } else if (!strcmp("CAPABILITY", arg))
853 parse_capability(imap, cmd);
854 else if ((arg1 = next_arg(&cmd))) {
855 if (!strcmp("EXISTS", arg1))
856 ctx->gen.count = atoi(arg);
857 else if (!strcmp("RECENT", arg1))
858 ctx->gen.recent = atoi(arg);
859 } else {
860 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
861 return RESP_BAD;
862 }
863 } else if (!imap->in_progress) {
864 fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : "");
865 return RESP_BAD;
866 } else if (*arg == '+') {
867 /* This can happen only with the last command underway, as
868 it enforces a round-trip. */
869 cmdp = (struct imap_cmd *)((char *)imap->in_progress_append -
870 offsetof(struct imap_cmd, next));
871 if (cmdp->cb.data) {
872 n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen);
873 free(cmdp->cb.data);
874 cmdp->cb.data = NULL;
875 if (n != (int)cmdp->cb.dlen)
876 return RESP_BAD;
877 } else if (cmdp->cb.cont) {
878 if (cmdp->cb.cont(ctx, cmdp, cmd))
879 return RESP_BAD;
880 } else {
881 fprintf(stderr, "IMAP error: unexpected command continuation request\n");
882 return RESP_BAD;
883 }
884 if (socket_write(&imap->buf.sock, "\r\n", 2) != 2)
885 return RESP_BAD;
886 if (!cmdp->cb.cont)
887 imap->literal_pending = 0;
888 if (!tcmd)
889 return DRV_OK;
890 } else {
891 tag = atoi(arg);
892 for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next)
893 if (cmdp->tag == tag)
894 goto gottag;
895 fprintf(stderr, "IMAP error: unexpected tag %s\n", arg);
896 return RESP_BAD;
897 gottag:
898 if (!(*pcmdp = cmdp->next))
899 imap->in_progress_append = pcmdp;
900 imap->num_in_progress--;
901 if (cmdp->cb.cont || cmdp->cb.data)
902 imap->literal_pending = 0;
903 arg = next_arg(&cmd);
904 if (!strcmp("OK", arg))
905 resp = DRV_OK;
906 else {
907 if (!strcmp("NO", arg)) {
908 if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */
909 p = strchr(cmdp->cmd, '"');
910 if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", (int)(strchr(p + 1, '"') - p + 1), p)) {
911 resp = RESP_BAD;
912 goto normal;
913 }
914 /* not waiting here violates the spec, but a server that does not
915 grok this nonetheless violates it too. */
916 cmdp->cb.create = 0;
917 if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) {
918 resp = RESP_BAD;
919 goto normal;
920 }
921 free(cmdp->cmd);
922 free(cmdp);
923 if (!tcmd)
924 return 0; /* ignored */
925 if (cmdp == tcmd)
926 tcmd = ncmdp;
927 continue;
928 }
929 resp = RESP_NO;
930 } else /*if (!strcmp("BAD", arg))*/
931 resp = RESP_BAD;
932 fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n",
933 memcmp(cmdp->cmd, "LOGIN", 5) ?
934 cmdp->cmd : "LOGIN <user> <pass>",
935 arg, cmd ? cmd : "");
936 }
937 if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp)
938 resp = resp2;
939 normal:
940 if (cmdp->cb.done)
941 cmdp->cb.done(ctx, cmdp, resp);
942 free(cmdp->cb.data);
943 free(cmdp->cmd);
944 free(cmdp);
945 if (!tcmd || tcmd == cmdp)
946 return resp;
947 }
948 }
949 /* not reached */
950 }
951
952 static void imap_close_server(struct imap_store *ictx)
953 {
954 struct imap *imap = ictx->imap;
955
956 if (imap->buf.sock.fd[0] != -1) {
957 imap_exec(ictx, NULL, "LOGOUT");
958 socket_shutdown(&imap->buf.sock);
959 }
960 free_list(imap->ns_personal);
961 free_list(imap->ns_other);
962 free_list(imap->ns_shared);
963 free(imap);
964 }
965
966 static void imap_close_store(struct store *ctx)
967 {
968 imap_close_server((struct imap_store *)ctx);
969 free_generic_messages(ctx->msgs);
970 free(ctx);
971 }
972
973 #ifndef NO_OPENSSL
974
975 /*
976 * hexchar() and cram() functions are based on the code from the isync
977 * project (http://isync.sf.net/).
978 */
979 static char hexchar(unsigned int b)
980 {
981 return b < 10 ? '0' + b : 'a' + (b - 10);
982 }
983
984 #define ENCODED_SIZE(n) (4*((n+2)/3))
985 static char *cram(const char *challenge_64, const char *user, const char *pass)
986 {
987 int i, resp_len, encoded_len, decoded_len;
988 HMAC_CTX hmac;
989 unsigned char hash[16];
990 char hex[33];
991 char *response, *response_64, *challenge;
992
993 /*
994 * length of challenge_64 (i.e. base-64 encoded string) is a good
995 * enough upper bound for challenge (decoded result).
996 */
997 encoded_len = strlen(challenge_64);
998 challenge = xmalloc(encoded_len);
999 decoded_len = EVP_DecodeBlock((unsigned char *)challenge,
1000 (unsigned char *)challenge_64, encoded_len);
1001 if (decoded_len < 0)
1002 die("invalid challenge %s", challenge_64);
1003 HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5());
1004 HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len);
1005 HMAC_Final(&hmac, hash, NULL);
1006 HMAC_CTX_cleanup(&hmac);
1007
1008 hex[32] = 0;
1009 for (i = 0; i < 16; i++) {
1010 hex[2 * i] = hexchar((hash[i] >> 4) & 0xf);
1011 hex[2 * i + 1] = hexchar(hash[i] & 0xf);
1012 }
1013
1014 /* response: "<user> <digest in hex>" */
1015 resp_len = strlen(user) + 1 + strlen(hex) + 1;
1016 response = xmalloc(resp_len);
1017 sprintf(response, "%s %s", user, hex);
1018
1019 response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1);
1020 encoded_len = EVP_EncodeBlock((unsigned char *)response_64,
1021 (unsigned char *)response, resp_len);
1022 if (encoded_len < 0)
1023 die("EVP_EncodeBlock error");
1024 response_64[encoded_len] = '\0';
1025 return (char *)response_64;
1026 }
1027
1028 #else
1029
1030 static char *cram(const char *challenge_64, const char *user, const char *pass)
1031 {
1032 die("If you want to use CRAM-MD5 authenticate method, "
1033 "you have to build git-imap-send with OpenSSL library.");
1034 }
1035
1036 #endif
1037
1038 static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt)
1039 {
1040 int ret;
1041 char *response;
1042
1043 response = cram(prompt, server.user, server.pass);
1044
1045 ret = socket_write(&ctx->imap->buf.sock, response, strlen(response));
1046 if (ret != strlen(response))
1047 return error("IMAP error: sending response failed\n");
1048
1049 free(response);
1050
1051 return 0;
1052 }
1053
1054 static struct store *imap_open_store(struct imap_server_conf *srvc)
1055 {
1056 struct imap_store *ctx;
1057 struct imap *imap;
1058 char *arg, *rsp;
1059 int s = -1, preauth;
1060
1061 ctx = xcalloc(sizeof(*ctx), 1);
1062
1063 ctx->imap = imap = xcalloc(sizeof(*imap), 1);
1064 imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1;
1065 imap->in_progress_append = &imap->in_progress;
1066
1067 /* open connection to IMAP server */
1068
1069 if (srvc->tunnel) {
1070 const char *argv[] = { srvc->tunnel, NULL };
1071 struct child_process tunnel = {NULL};
1072
1073 imap_info("Starting tunnel '%s'... ", srvc->tunnel);
1074
1075 tunnel.argv = argv;
1076 tunnel.use_shell = 1;
1077 tunnel.in = -1;
1078 tunnel.out = -1;
1079 if (start_command(&tunnel))
1080 die("cannot start proxy %s", argv[0]);
1081
1082 imap->buf.sock.fd[0] = tunnel.out;
1083 imap->buf.sock.fd[1] = tunnel.in;
1084
1085 imap_info("ok\n");
1086 } else {
1087 #ifndef NO_IPV6
1088 struct addrinfo hints, *ai0, *ai;
1089 int gai;
1090 char portstr[6];
1091
1092 snprintf(portstr, sizeof(portstr), "%d", srvc->port);
1093
1094 memset(&hints, 0, sizeof(hints));
1095 hints.ai_socktype = SOCK_STREAM;
1096 hints.ai_protocol = IPPROTO_TCP;
1097
1098 imap_info("Resolving %s... ", srvc->host);
1099 gai = getaddrinfo(srvc->host, portstr, &hints, &ai);
1100 if (gai) {
1101 fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai));
1102 goto bail;
1103 }
1104 imap_info("ok\n");
1105
1106 for (ai0 = ai; ai; ai = ai->ai_next) {
1107 char addr[NI_MAXHOST];
1108
1109 s = socket(ai->ai_family, ai->ai_socktype,
1110 ai->ai_protocol);
1111 if (s < 0)
1112 continue;
1113
1114 getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1115 sizeof(addr), NULL, 0, NI_NUMERICHOST);
1116 imap_info("Connecting to [%s]:%s... ", addr, portstr);
1117
1118 if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
1119 close(s);
1120 s = -1;
1121 perror("connect");
1122 continue;
1123 }
1124
1125 break;
1126 }
1127 freeaddrinfo(ai0);
1128 #else /* NO_IPV6 */
1129 struct hostent *he;
1130 struct sockaddr_in addr;
1131
1132 memset(&addr, 0, sizeof(addr));
1133 addr.sin_port = htons(srvc->port);
1134 addr.sin_family = AF_INET;
1135
1136 imap_info("Resolving %s... ", srvc->host);
1137 he = gethostbyname(srvc->host);
1138 if (!he) {
1139 perror("gethostbyname");
1140 goto bail;
1141 }
1142 imap_info("ok\n");
1143
1144 addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]);
1145
1146 s = socket(PF_INET, SOCK_STREAM, 0);
1147
1148 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
1149 if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) {
1150 close(s);
1151 s = -1;
1152 perror("connect");
1153 }
1154 #endif
1155 if (s < 0) {
1156 fputs("Error: unable to connect to server.\n", stderr);
1157 goto bail;
1158 }
1159
1160 imap->buf.sock.fd[0] = s;
1161 imap->buf.sock.fd[1] = dup(s);
1162
1163 if (srvc->use_ssl &&
1164 ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) {
1165 close(s);
1166 goto bail;
1167 }
1168 imap_info("ok\n");
1169 }
1170
1171 /* read the greeting string */
1172 if (buffer_gets(&imap->buf, &rsp)) {
1173 fprintf(stderr, "IMAP error: no greeting response\n");
1174 goto bail;
1175 }
1176 arg = next_arg(&rsp);
1177 if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) {
1178 fprintf(stderr, "IMAP error: invalid greeting response\n");
1179 goto bail;
1180 }
1181 preauth = 0;
1182 if (!strcmp("PREAUTH", arg))
1183 preauth = 1;
1184 else if (strcmp("OK", arg) != 0) {
1185 fprintf(stderr, "IMAP error: unknown greeting response\n");
1186 goto bail;
1187 }
1188 parse_response_code(ctx, NULL, rsp);
1189 if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1190 goto bail;
1191
1192 if (!preauth) {
1193 #ifndef NO_OPENSSL
1194 if (!srvc->use_ssl && CAP(STARTTLS)) {
1195 if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK)
1196 goto bail;
1197 if (ssl_socket_connect(&imap->buf.sock, 1,
1198 srvc->ssl_verify))
1199 goto bail;
1200 /* capabilities may have changed, so get the new capabilities */
1201 if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1202 goto bail;
1203 }
1204 #endif
1205 imap_info("Logging in...\n");
1206 if (!srvc->user) {
1207 fprintf(stderr, "Skipping server %s, no user\n", srvc->host);
1208 goto bail;
1209 }
1210 if (!srvc->pass) {
1211 char prompt[80];
1212 sprintf(prompt, "Password (%s@%s): ", srvc->user, srvc->host);
1213 arg = git_getpass(prompt);
1214 if (!arg) {
1215 perror("getpass");
1216 exit(1);
1217 }
1218 if (!*arg) {
1219 fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host);
1220 goto bail;
1221 }
1222 /*
1223 * getpass() returns a pointer to a static buffer. make a copy
1224 * for long term storage.
1225 */
1226 srvc->pass = xstrdup(arg);
1227 }
1228 if (CAP(NOLOGIN)) {
1229 fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host);
1230 goto bail;
1231 }
1232
1233 if (srvc->auth_method) {
1234 struct imap_cmd_cb cb;
1235
1236 if (!strcmp(srvc->auth_method, "CRAM-MD5")) {
1237 if (!CAP(AUTH_CRAM_MD5)) {
1238 fprintf(stderr, "You specified"
1239 "CRAM-MD5 as authentication method, "
1240 "but %s doesn't support it.\n", srvc->host);
1241 goto bail;
1242 }
1243 /* CRAM-MD5 */
1244
1245 memset(&cb, 0, sizeof(cb));
1246 cb.cont = auth_cram_md5;
1247 if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) {
1248 fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n");
1249 goto bail;
1250 }
1251 } else {
1252 fprintf(stderr, "Unknown authentication method:%s\n", srvc->host);
1253 goto bail;
1254 }
1255 } else {
1256 if (!imap->buf.sock.ssl)
1257 imap_warn("*** IMAP Warning *** Password is being "
1258 "sent in the clear\n");
1259 if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) {
1260 fprintf(stderr, "IMAP error: LOGIN failed\n");
1261 goto bail;
1262 }
1263 }
1264 } /* !preauth */
1265
1266 ctx->prefix = "";
1267 ctx->trashnc = 1;
1268 return (struct store *)ctx;
1269
1270 bail:
1271 imap_close_store(&ctx->gen);
1272 return NULL;
1273 }
1274
1275 static int imap_make_flags(int flags, char *buf)
1276 {
1277 const char *s;
1278 unsigned i, d;
1279
1280 for (i = d = 0; i < ARRAY_SIZE(Flags); i++)
1281 if (flags & (1 << i)) {
1282 buf[d++] = ' ';
1283 buf[d++] = '\\';
1284 for (s = Flags[i]; *s; s++)
1285 buf[d++] = *s;
1286 }
1287 buf[0] = '(';
1288 buf[d++] = ')';
1289 return d;
1290 }
1291
1292 static void lf_to_crlf(struct msg_data *msg)
1293 {
1294 char *new;
1295 int i, j, lfnum = 0;
1296
1297 if (msg->data[0] == '\n')
1298 lfnum++;
1299 for (i = 1; i < msg->len; i++) {
1300 if (msg->data[i - 1] != '\r' && msg->data[i] == '\n')
1301 lfnum++;
1302 }
1303
1304 new = xmalloc(msg->len + lfnum);
1305 if (msg->data[0] == '\n') {
1306 new[0] = '\r';
1307 new[1] = '\n';
1308 i = 1;
1309 j = 2;
1310 } else {
1311 new[0] = msg->data[0];
1312 i = 1;
1313 j = 1;
1314 }
1315 for ( ; i < msg->len; i++) {
1316 if (msg->data[i] != '\n') {
1317 new[j++] = msg->data[i];
1318 continue;
1319 }
1320 if (msg->data[i - 1] != '\r')
1321 new[j++] = '\r';
1322 /* otherwise it already had CR before */
1323 new[j++] = '\n';
1324 }
1325 msg->len += lfnum;
1326 free(msg->data);
1327 msg->data = new;
1328 }
1329
1330 static int imap_store_msg(struct store *gctx, struct msg_data *data)
1331 {
1332 struct imap_store *ctx = (struct imap_store *)gctx;
1333 struct imap *imap = ctx->imap;
1334 struct imap_cmd_cb cb;
1335 const char *prefix, *box;
1336 int ret, d;
1337 char flagstr[128];
1338
1339 lf_to_crlf(data);
1340 memset(&cb, 0, sizeof(cb));
1341
1342 cb.dlen = data->len;
1343 cb.data = xmalloc(cb.dlen);
1344 memcpy(cb.data, data->data, data->len);
1345
1346 d = 0;
1347 if (data->flags) {
1348 d = imap_make_flags(data->flags, flagstr);
1349 flagstr[d++] = ' ';
1350 }
1351 flagstr[d] = 0;
1352
1353 box = gctx->name;
1354 prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix;
1355 cb.create = 0;
1356 ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" %s", prefix, box, flagstr);
1357 imap->caps = imap->rcaps;
1358 if (ret != DRV_OK)
1359 return ret;
1360 gctx->count++;
1361
1362 return DRV_OK;
1363 }
1364
1365 static void encode_html_chars(struct strbuf *p)
1366 {
1367 int i;
1368 for (i = 0; i < p->len; i++) {
1369 if (p->buf[i] == '&')
1370 strbuf_splice(p, i, 1, "&amp;", 5);
1371 if (p->buf[i] == '<')
1372 strbuf_splice(p, i, 1, "&lt;", 4);
1373 if (p->buf[i] == '>')
1374 strbuf_splice(p, i, 1, "&gt;", 4);
1375 if (p->buf[i] == '"')
1376 strbuf_splice(p, i, 1, "&quot;", 6);
1377 }
1378 }
1379 static void wrap_in_html(struct msg_data *msg)
1380 {
1381 struct strbuf buf = STRBUF_INIT;
1382 struct strbuf **lines;
1383 struct strbuf **p;
1384 static char *content_type = "Content-Type: text/html;\n";
1385 static char *pre_open = "<pre>\n";
1386 static char *pre_close = "</pre>\n";
1387 int added_header = 0;
1388
1389 strbuf_attach(&buf, msg->data, msg->len, msg->len);
1390 lines = strbuf_split(&buf, '\n');
1391 strbuf_release(&buf);
1392 for (p = lines; *p; p++) {
1393 if (! added_header) {
1394 if ((*p)->len == 1 && *((*p)->buf) == '\n') {
1395 strbuf_addstr(&buf, content_type);
1396 strbuf_addbuf(&buf, *p);
1397 strbuf_addstr(&buf, pre_open);
1398 added_header = 1;
1399 continue;
1400 }
1401 }
1402 else
1403 encode_html_chars(*p);
1404 strbuf_addbuf(&buf, *p);
1405 }
1406 strbuf_addstr(&buf, pre_close);
1407 strbuf_list_free(lines);
1408 msg->len = buf.len;
1409 msg->data = strbuf_detach(&buf, NULL);
1410 }
1411
1412 #define CHUNKSIZE 0x1000
1413
1414 static int read_message(FILE *f, struct msg_data *msg)
1415 {
1416 struct strbuf buf = STRBUF_INIT;
1417
1418 memset(msg, 0, sizeof(*msg));
1419
1420 do {
1421 if (strbuf_fread(&buf, CHUNKSIZE, f) <= 0)
1422 break;
1423 } while (!feof(f));
1424
1425 msg->len = buf.len;
1426 msg->data = strbuf_detach(&buf, NULL);
1427 return msg->len;
1428 }
1429
1430 static int count_messages(struct msg_data *msg)
1431 {
1432 int count = 0;
1433 char *p = msg->data;
1434
1435 while (1) {
1436 if (!prefixcmp(p, "From ")) {
1437 p = strstr(p+5, "\nFrom: ");
1438 if (!p) break;
1439 p = strstr(p+7, "\nDate: ");
1440 if (!p) break;
1441 p = strstr(p+7, "\nSubject: ");
1442 if (!p) break;
1443 p += 10;
1444 count++;
1445 }
1446 p = strstr(p+5, "\nFrom ");
1447 if (!p)
1448 break;
1449 p++;
1450 }
1451 return count;
1452 }
1453
1454 static int split_msg(struct msg_data *all_msgs, struct msg_data *msg, int *ofs)
1455 {
1456 char *p, *data;
1457
1458 memset(msg, 0, sizeof *msg);
1459 if (*ofs >= all_msgs->len)
1460 return 0;
1461
1462 data = &all_msgs->data[*ofs];
1463 msg->len = all_msgs->len - *ofs;
1464
1465 if (msg->len < 5 || prefixcmp(data, "From "))
1466 return 0;
1467
1468 p = strchr(data, '\n');
1469 if (p) {
1470 p = &p[1];
1471 msg->len -= p-data;
1472 *ofs += p-data;
1473 data = p;
1474 }
1475
1476 p = strstr(data, "\nFrom ");
1477 if (p)
1478 msg->len = &p[1] - data;
1479
1480 msg->data = xmemdupz(data, msg->len);
1481 *ofs += msg->len;
1482 return 1;
1483 }
1484
1485 static char *imap_folder;
1486
1487 static int git_imap_config(const char *key, const char *val, void *cb)
1488 {
1489 char imap_key[] = "imap.";
1490
1491 if (strncmp(key, imap_key, sizeof imap_key - 1))
1492 return 0;
1493
1494 key += sizeof imap_key - 1;
1495
1496 /* check booleans first, and barf on others */
1497 if (!strcmp("sslverify", key))
1498 server.ssl_verify = git_config_bool(key, val);
1499 else if (!strcmp("preformattedhtml", key))
1500 server.use_html = git_config_bool(key, val);
1501 else if (!val)
1502 return config_error_nonbool(key);
1503
1504 if (!strcmp("folder", key)) {
1505 imap_folder = xstrdup(val);
1506 } else if (!strcmp("host", key)) {
1507 if (!prefixcmp(val, "imap:"))
1508 val += 5;
1509 else if (!prefixcmp(val, "imaps:")) {
1510 val += 6;
1511 server.use_ssl = 1;
1512 }
1513 if (!prefixcmp(val, "//"))
1514 val += 2;
1515 server.host = xstrdup(val);
1516 } else if (!strcmp("user", key))
1517 server.user = xstrdup(val);
1518 else if (!strcmp("pass", key))
1519 server.pass = xstrdup(val);
1520 else if (!strcmp("port", key))
1521 server.port = git_config_int(key, val);
1522 else if (!strcmp("tunnel", key))
1523 server.tunnel = xstrdup(val);
1524 else if (!strcmp("authmethod", key))
1525 server.auth_method = xstrdup(val);
1526
1527 return 0;
1528 }
1529
1530 int main(int argc, char **argv)
1531 {
1532 struct msg_data all_msgs, msg;
1533 struct store *ctx = NULL;
1534 int ofs = 0;
1535 int r;
1536 int total, n = 0;
1537 int nongit_ok;
1538
1539 git_extract_argv0_path(argv[0]);
1540
1541 if (argc != 1)
1542 usage(imap_send_usage);
1543
1544 setup_git_directory_gently(&nongit_ok);
1545 git_config(git_imap_config, NULL);
1546
1547 if (!server.port)
1548 server.port = server.use_ssl ? 993 : 143;
1549
1550 if (!imap_folder) {
1551 fprintf(stderr, "no imap store specified\n");
1552 return 1;
1553 }
1554 if (!server.host) {
1555 if (!server.tunnel) {
1556 fprintf(stderr, "no imap host specified\n");
1557 return 1;
1558 }
1559 server.host = "tunnel";
1560 }
1561
1562 /* read the messages */
1563 if (!read_message(stdin, &all_msgs)) {
1564 fprintf(stderr, "nothing to send\n");
1565 return 1;
1566 }
1567
1568 total = count_messages(&all_msgs);
1569 if (!total) {
1570 fprintf(stderr, "no messages to send\n");
1571 return 1;
1572 }
1573
1574 /* write it to the imap server */
1575 ctx = imap_open_store(&server);
1576 if (!ctx) {
1577 fprintf(stderr, "failed to open store\n");
1578 return 1;
1579 }
1580
1581 fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : "");
1582 ctx->name = imap_folder;
1583 while (1) {
1584 unsigned percent = n * 100 / total;
1585 fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total);
1586 if (!split_msg(&all_msgs, &msg, &ofs))
1587 break;
1588 if (server.use_html)
1589 wrap_in_html(&msg);
1590 r = imap_store_msg(ctx, &msg);
1591 if (r != DRV_OK)
1592 break;
1593 n++;
1594 }
1595 fprintf(stderr, "\n");
1596
1597 imap_close_store(ctx);
1598
1599 return 0;
1600 }
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