2 * git-imap-send - drops patches into an imap Drafts folder
3 * derived from isync/mbsync - mailbox synchronizer
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
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.
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.
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
27 #include "run-command.h"
31 #include <openssl/evp.h>
32 #include <openssl/hmac.h>
37 const char *path
; /* should this be here? its interpretation is driver-specific */
40 unsigned max_size
; /* off_t is overkill */
41 unsigned trash_remote_new
:1, trash_only_new
:1;
45 struct string_list
*next
;
50 struct channel_conf
*next
;
52 struct store_conf
*master
, *slave
;
53 char *master_name
, *slave_name
;
55 struct string_list
*patterns
;
57 unsigned max_messages
; /* for slave only */
61 struct group_conf
*next
;
63 struct string_list
*channels
;
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 */
73 /* struct string_list *keywords; */
74 size_t size
; /* zero implies "not fetched" */
76 unsigned char flags
, status
;
80 struct store_conf
*conf
; /* foreign */
82 /* currently open mailbox */
83 const char *name
; /* foreign! maybe preset? */
85 struct message
*msgs
; /* own */
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 */
99 static const char imap_send_usage
[] = "git imap-send < <mbox>";
103 #define DRV_MSG_BAD -1
104 #define DRV_BOX_BAD -2
105 #define DRV_STORE_BAD -3
107 static int Verbose
, Quiet
;
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 *, ...);
114 static char *next_arg(char **);
116 static void free_generic_messages(struct message
*);
118 __attribute__((format (printf
, 3, 4)))
119 static int nfsnprintf(char *buf
, int blen
, const char *fmt
, ...);
121 static int nfvasprintf(char **strp
, const char *fmt
, va_list ap
)
126 len
= vsnprintf(tmp
, sizeof(tmp
), fmt
, ap
);
128 die("Fatal: Out of memory");
129 if (len
>= sizeof(tmp
))
130 die("imap command overflow!");
131 *strp
= xmemdupz(tmp
, len
);
135 struct imap_server_conf
{
148 static struct imap_server_conf server
= {
158 NULL
, /* auth_method */
161 struct imap_store_conf
{
162 struct store_conf gen
;
163 struct imap_server_conf
*server
;
164 unsigned use_namespace
:1;
167 #define NIL (void *)0x1
168 #define LIST (void *)0x2
171 struct imap_list
*next
, *child
;
182 struct imap_socket sock
;
191 int uidnext
; /* from SELECT responses */
192 struct imap_list
*ns_personal
, *ns_other
, *ns_shared
; /* NAMESPACE info */
193 unsigned caps
, rcaps
; /* CAPABILITY results */
195 int nexttag
, num_in_progress
, literal_pending
;
196 struct imap_cmd
*in_progress
, **in_progress_append
;
197 struct imap_buffer buf
; /* this is BIG, so put it last */
205 unsigned /*currentnc:1,*/ trashnc
:1;
209 int (*cont
)(struct imap_store
*ctx
, struct imap_cmd
*cmd
, const char *prompt
);
210 void (*done
)(struct imap_store
*ctx
, struct imap_cmd
*cmd
, int response
);
215 unsigned create
:1, trycreate
:1;
219 struct imap_cmd
*next
;
220 struct imap_cmd_cb cb
;
225 #define CAP(cap) (imap->caps & (1 << (cap)))
236 static const char *cap_list
[] = {
249 static int get_cmd_result(struct imap_store
*ctx
, struct imap_cmd
*tcmd
);
252 static const char *Flags
[] = {
261 static void ssl_socket_perror(const char *func
)
263 fprintf(stderr
, "%s: %s\n", func
, ERR_error_string(ERR_get_error(), NULL
));
267 static void socket_perror(const char *func
, struct imap_socket
*sock
, int ret
)
271 int sslerr
= SSL_get_error(sock
->ssl
, ret
);
275 case SSL_ERROR_SYSCALL
:
276 perror("SSL_connect");
279 ssl_socket_perror("SSL_connect");
288 fprintf(stderr
, "%s: unexpected EOF\n", func
);
292 static int ssl_socket_connect(struct imap_socket
*sock
, int use_tls_only
, int verify
)
295 fprintf(stderr
, "SSL requested but SSL support not compiled in\n");
298 #if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
299 const SSL_METHOD
*meth
;
307 SSL_load_error_strings();
310 meth
= TLSv1_method();
312 meth
= SSLv23_method();
315 ssl_socket_perror("SSLv23_method");
319 ctx
= SSL_CTX_new(meth
);
322 SSL_CTX_set_verify(ctx
, SSL_VERIFY_PEER
, NULL
);
324 if (!SSL_CTX_set_default_verify_paths(ctx
)) {
325 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
328 sock
->ssl
= SSL_new(ctx
);
330 ssl_socket_perror("SSL_new");
333 if (!SSL_set_rfd(sock
->ssl
, sock
->fd
[0])) {
334 ssl_socket_perror("SSL_set_rfd");
337 if (!SSL_set_wfd(sock
->ssl
, sock
->fd
[1])) {
338 ssl_socket_perror("SSL_set_wfd");
342 ret
= SSL_connect(sock
->ssl
);
344 socket_perror("SSL_connect", sock
, ret
);
352 static int socket_read(struct imap_socket
*sock
, char *buf
, int len
)
357 n
= SSL_read(sock
->ssl
, buf
, len
);
360 n
= xread(sock
->fd
[0], buf
, len
);
362 socket_perror("read", sock
, n
);
365 sock
->fd
[0] = sock
->fd
[1] = -1;
370 static int socket_write(struct imap_socket
*sock
, const char *buf
, int len
)
375 n
= SSL_write(sock
->ssl
, buf
, len
);
378 n
= write_in_full(sock
->fd
[1], buf
, len
);
380 socket_perror("write", sock
, n
);
383 sock
->fd
[0] = sock
->fd
[1] = -1;
388 static void socket_shutdown(struct imap_socket
*sock
)
392 SSL_shutdown(sock
->ssl
);
400 /* simple line buffering */
401 static int buffer_gets(struct imap_buffer
*b
, char **s
)
404 int start
= b
->offset
;
409 /* make sure we have enough data to read the \r\n sequence */
410 if (b
->offset
+ 1 >= b
->bytes
) {
412 /* shift down used bytes */
415 assert(start
<= b
->bytes
);
416 n
= b
->bytes
- start
;
419 memmove(b
->buf
, b
->buf
+ start
, n
);
425 n
= socket_read(&b
->sock
, b
->buf
+ b
->bytes
,
426 sizeof(b
->buf
) - b
->bytes
);
434 if (b
->buf
[b
->offset
] == '\r') {
435 assert(b
->offset
+ 1 < b
->bytes
);
436 if (b
->buf
[b
->offset
+ 1] == '\n') {
437 b
->buf
[b
->offset
] = 0; /* terminate the string */
438 b
->offset
+= 2; /* next line */
450 static void imap_info(const char *msg
, ...)
462 static void imap_warn(const char *msg
, ...)
468 vfprintf(stderr
, msg
, va
);
473 static char *next_arg(char **s
)
479 while (isspace((unsigned char) **s
))
488 *s
= strchr(*s
, '"');
491 while (**s
&& !isspace((unsigned char) **s
))
503 static void free_generic_messages(struct message
*msgs
)
505 struct message
*tmsg
;
507 for (; msgs
; msgs
= tmsg
) {
513 static int nfsnprintf(char *buf
, int blen
, const char *fmt
, ...)
519 if (blen
<= 0 || (unsigned)(ret
= vsnprintf(buf
, blen
, fmt
, va
)) >= (unsigned)blen
)
520 die("Fatal: buffer too small. Please report a bug.");
525 static struct imap_cmd
*v_issue_imap_cmd(struct imap_store
*ctx
,
526 struct imap_cmd_cb
*cb
,
527 const char *fmt
, va_list ap
)
529 struct imap
*imap
= ctx
->imap
;
530 struct imap_cmd
*cmd
;
534 cmd
= xmalloc(sizeof(struct imap_cmd
));
535 nfvasprintf(&cmd
->cmd
, fmt
, ap
);
536 cmd
->tag
= ++imap
->nexttag
;
541 memset(&cmd
->cb
, 0, sizeof(cmd
->cb
));
543 while (imap
->literal_pending
)
544 get_cmd_result(ctx
, NULL
);
547 bufl
= nfsnprintf(buf
, sizeof(buf
), "%d %s\r\n", cmd
->tag
, cmd
->cmd
);
549 bufl
= nfsnprintf(buf
, sizeof(buf
), "%d %s{%d%s}\r\n",
550 cmd
->tag
, cmd
->cmd
, cmd
->cb
.dlen
,
551 CAP(LITERALPLUS
) ? "+" : "");
554 if (imap
->num_in_progress
)
555 printf("(%d in progress) ", imap
->num_in_progress
);
556 if (memcmp(cmd
->cmd
, "LOGIN", 5))
557 printf(">>> %s", buf
);
559 printf(">>> %d LOGIN <user> <pass>\n", cmd
->tag
);
561 if (socket_write(&imap
->buf
.sock
, buf
, bufl
) != bufl
) {
569 if (CAP(LITERALPLUS
)) {
570 n
= socket_write(&imap
->buf
.sock
, cmd
->cb
.data
, cmd
->cb
.dlen
);
572 if (n
!= cmd
->cb
.dlen
||
573 socket_write(&imap
->buf
.sock
, "\r\n", 2) != 2) {
580 imap
->literal_pending
= 1;
581 } else if (cmd
->cb
.cont
)
582 imap
->literal_pending
= 1;
584 *imap
->in_progress_append
= cmd
;
585 imap
->in_progress_append
= &cmd
->next
;
586 imap
->num_in_progress
++;
590 __attribute__((format (printf
, 3, 4)))
591 static struct imap_cmd
*issue_imap_cmd(struct imap_store
*ctx
,
592 struct imap_cmd_cb
*cb
,
593 const char *fmt
, ...)
595 struct imap_cmd
*ret
;
599 ret
= v_issue_imap_cmd(ctx
, cb
, fmt
, ap
);
604 __attribute__((format (printf
, 3, 4)))
605 static int imap_exec(struct imap_store
*ctx
, struct imap_cmd_cb
*cb
,
606 const char *fmt
, ...)
609 struct imap_cmd
*cmdp
;
612 cmdp
= v_issue_imap_cmd(ctx
, cb
, fmt
, ap
);
617 return get_cmd_result(ctx
, cmdp
);
620 __attribute__((format (printf
, 3, 4)))
621 static int imap_exec_m(struct imap_store
*ctx
, struct imap_cmd_cb
*cb
,
622 const char *fmt
, ...)
625 struct imap_cmd
*cmdp
;
628 cmdp
= v_issue_imap_cmd(ctx
, cb
, fmt
, ap
);
631 return DRV_STORE_BAD
;
633 switch (get_cmd_result(ctx
, cmdp
)) {
634 case RESP_BAD
: return DRV_STORE_BAD
;
635 case RESP_NO
: return DRV_MSG_BAD
;
636 default: return DRV_OK
;
640 static int is_atom(struct imap_list
*list
)
642 return list
&& list
->val
&& list
->val
!= NIL
&& list
->val
!= LIST
;
645 static int is_list(struct imap_list
*list
)
647 return list
&& list
->val
== LIST
;
650 static void free_list(struct imap_list
*list
)
652 struct imap_list
*tmp
;
654 for (; list
; list
= tmp
) {
657 free_list(list
->child
);
658 else if (is_atom(list
))
664 static int parse_imap_list_l(struct imap
*imap
, char **sp
, struct imap_list
**curp
, int level
)
666 struct imap_list
*cur
;
671 while (isspace((unsigned char)*s
))
673 if (level
&& *s
== ')') {
677 *curp
= cur
= xmalloc(sizeof(*cur
));
679 cur
->val
= NULL
; /* for clean bail */
684 if (parse_imap_list_l(imap
, &s
, &cur
->child
, level
+ 1))
686 } else if (imap
&& *s
== '{') {
688 bytes
= cur
->len
= strtol(s
+ 1, &s
, 10);
692 s
= cur
->val
= xmalloc(cur
->len
);
694 /* dump whats left over in the input buffer */
695 n
= imap
->buf
.bytes
- imap
->buf
.offset
;
698 /* the entire message fit in the buffer */
701 memcpy(s
, imap
->buf
.buf
+ imap
->buf
.offset
, n
);
705 /* mark that we used part of the buffer */
706 imap
->buf
.offset
+= n
;
708 /* now read the rest of the message */
710 if ((n
= socket_read(&imap
->buf
.sock
, s
, bytes
)) <= 0)
716 if (buffer_gets(&imap
->buf
, &s
))
718 } else if (*s
== '"') {
722 for (; *s
!= '"'; s
++)
727 cur
->val
= xmemdupz(p
, cur
->len
);
731 for (; *s
&& !isspace((unsigned char)*s
); s
++)
732 if (level
&& *s
== ')')
735 if (cur
->len
== 3 && !memcmp("NIL", p
, 3))
738 cur
->val
= xmemdupz(p
, cur
->len
);
755 static struct imap_list
*parse_imap_list(struct imap
*imap
, char **sp
)
757 struct imap_list
*head
;
759 if (!parse_imap_list_l(imap
, sp
, &head
, 0))
765 static struct imap_list
*parse_list(char **sp
)
767 return parse_imap_list(NULL
, sp
);
770 static void parse_capability(struct imap
*imap
, char *cmd
)
775 imap
->caps
= 0x80000000;
776 while ((arg
= next_arg(&cmd
)))
777 for (i
= 0; i
< ARRAY_SIZE(cap_list
); i
++)
778 if (!strcmp(cap_list
[i
], arg
))
779 imap
->caps
|= 1 << i
;
780 imap
->rcaps
= imap
->caps
;
783 static int parse_response_code(struct imap_store
*ctx
, struct imap_cmd_cb
*cb
,
786 struct imap
*imap
= ctx
->imap
;
790 return RESP_OK
; /* no response code */
792 if (!(p
= strchr(s
, ']'))) {
793 fprintf(stderr
, "IMAP error: malformed response code\n");
798 if (!strcmp("UIDVALIDITY", arg
)) {
799 if (!(arg
= next_arg(&s
)) || !(ctx
->gen
.uidvalidity
= atoi(arg
))) {
800 fprintf(stderr
, "IMAP error: malformed UIDVALIDITY status\n");
803 } else if (!strcmp("UIDNEXT", arg
)) {
804 if (!(arg
= next_arg(&s
)) || !(imap
->uidnext
= atoi(arg
))) {
805 fprintf(stderr
, "IMAP error: malformed NEXTUID status\n");
808 } else if (!strcmp("CAPABILITY", arg
)) {
809 parse_capability(imap
, s
);
810 } else if (!strcmp("ALERT", arg
)) {
811 /* RFC2060 says that these messages MUST be displayed
814 for (; isspace((unsigned char)*p
); p
++);
815 fprintf(stderr
, "*** IMAP ALERT *** %s\n", p
);
816 } else if (cb
&& cb
->ctx
&& !strcmp("APPENDUID", arg
)) {
817 if (!(arg
= next_arg(&s
)) || !(ctx
->gen
.uidvalidity
= atoi(arg
)) ||
818 !(arg
= next_arg(&s
)) || !(*(int *)cb
->ctx
= atoi(arg
))) {
819 fprintf(stderr
, "IMAP error: malformed APPENDUID status\n");
826 static int get_cmd_result(struct imap_store
*ctx
, struct imap_cmd
*tcmd
)
828 struct imap
*imap
= ctx
->imap
;
829 struct imap_cmd
*cmdp
, **pcmdp
, *ncmdp
;
830 char *cmd
, *arg
, *arg1
, *p
;
831 int n
, resp
, resp2
, tag
;
834 if (buffer_gets(&imap
->buf
, &cmd
))
837 arg
= next_arg(&cmd
);
839 arg
= next_arg(&cmd
);
841 fprintf(stderr
, "IMAP error: unable to parse untagged response\n");
845 if (!strcmp("NAMESPACE", arg
)) {
846 imap
->ns_personal
= parse_list(&cmd
);
847 imap
->ns_other
= parse_list(&cmd
);
848 imap
->ns_shared
= parse_list(&cmd
);
849 } else if (!strcmp("OK", arg
) || !strcmp("BAD", arg
) ||
850 !strcmp("NO", arg
) || !strcmp("BYE", arg
)) {
851 if ((resp
= parse_response_code(ctx
, NULL
, cmd
)) != RESP_OK
)
853 } else if (!strcmp("CAPABILITY", arg
))
854 parse_capability(imap
, cmd
);
855 else if ((arg1
= next_arg(&cmd
))) {
856 if (!strcmp("EXISTS", arg1
))
857 ctx
->gen
.count
= atoi(arg
);
858 else if (!strcmp("RECENT", arg1
))
859 ctx
->gen
.recent
= atoi(arg
);
861 fprintf(stderr
, "IMAP error: unable to parse untagged response\n");
864 } else if (!imap
->in_progress
) {
865 fprintf(stderr
, "IMAP error: unexpected reply: %s %s\n", arg
, cmd
? cmd
: "");
867 } else if (*arg
== '+') {
868 /* This can happen only with the last command underway, as
869 it enforces a round-trip. */
870 cmdp
= (struct imap_cmd
*)((char *)imap
->in_progress_append
-
871 offsetof(struct imap_cmd
, next
));
873 n
= socket_write(&imap
->buf
.sock
, cmdp
->cb
.data
, cmdp
->cb
.dlen
);
875 cmdp
->cb
.data
= NULL
;
876 if (n
!= (int)cmdp
->cb
.dlen
)
878 } else if (cmdp
->cb
.cont
) {
879 if (cmdp
->cb
.cont(ctx
, cmdp
, cmd
))
882 fprintf(stderr
, "IMAP error: unexpected command continuation request\n");
885 if (socket_write(&imap
->buf
.sock
, "\r\n", 2) != 2)
888 imap
->literal_pending
= 0;
893 for (pcmdp
= &imap
->in_progress
; (cmdp
= *pcmdp
); pcmdp
= &cmdp
->next
)
894 if (cmdp
->tag
== tag
)
896 fprintf(stderr
, "IMAP error: unexpected tag %s\n", arg
);
899 if (!(*pcmdp
= cmdp
->next
))
900 imap
->in_progress_append
= pcmdp
;
901 imap
->num_in_progress
--;
902 if (cmdp
->cb
.cont
|| cmdp
->cb
.data
)
903 imap
->literal_pending
= 0;
904 arg
= next_arg(&cmd
);
905 if (!strcmp("OK", arg
))
908 if (!strcmp("NO", arg
)) {
909 if (cmdp
->cb
.create
&& cmd
&& (cmdp
->cb
.trycreate
|| !memcmp(cmd
, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */
910 p
= strchr(cmdp
->cmd
, '"');
911 if (!issue_imap_cmd(ctx
, NULL
, "CREATE \"%.*s\"", (int)(strchr(p
+ 1, '"') - p
+ 1), p
)) {
915 /* not waiting here violates the spec, but a server that does not
916 grok this nonetheless violates it too. */
918 if (!(ncmdp
= issue_imap_cmd(ctx
, &cmdp
->cb
, "%s", cmdp
->cmd
))) {
925 return 0; /* ignored */
931 } else /*if (!strcmp("BAD", arg))*/
933 fprintf(stderr
, "IMAP command '%s' returned response (%s) - %s\n",
934 memcmp(cmdp
->cmd
, "LOGIN", 5) ?
935 cmdp
->cmd
: "LOGIN <user> <pass>",
936 arg
, cmd
? cmd
: "");
938 if ((resp2
= parse_response_code(ctx
, &cmdp
->cb
, cmd
)) > resp
)
942 cmdp
->cb
.done(ctx
, cmdp
, resp
);
946 if (!tcmd
|| tcmd
== cmdp
)
953 static void imap_close_server(struct imap_store
*ictx
)
955 struct imap
*imap
= ictx
->imap
;
957 if (imap
->buf
.sock
.fd
[0] != -1) {
958 imap_exec(ictx
, NULL
, "LOGOUT");
959 socket_shutdown(&imap
->buf
.sock
);
961 free_list(imap
->ns_personal
);
962 free_list(imap
->ns_other
);
963 free_list(imap
->ns_shared
);
967 static void imap_close_store(struct store
*ctx
)
969 imap_close_server((struct imap_store
*)ctx
);
970 free_generic_messages(ctx
->msgs
);
977 * hexchar() and cram() functions are based on the code from the isync
978 * project (http://isync.sf.net/).
980 static char hexchar(unsigned int b
)
982 return b
< 10 ? '0' + b
: 'a' + (b
- 10);
985 #define ENCODED_SIZE(n) (4*((n+2)/3))
986 static char *cram(const char *challenge_64
, const char *user
, const char *pass
)
988 int i
, resp_len
, encoded_len
, decoded_len
;
990 unsigned char hash
[16];
992 char *response
, *response_64
, *challenge
;
995 * length of challenge_64 (i.e. base-64 encoded string) is a good
996 * enough upper bound for challenge (decoded result).
998 encoded_len
= strlen(challenge_64
);
999 challenge
= xmalloc(encoded_len
);
1000 decoded_len
= EVP_DecodeBlock((unsigned char *)challenge
,
1001 (unsigned char *)challenge_64
, encoded_len
);
1002 if (decoded_len
< 0)
1003 die("invalid challenge %s", challenge_64
);
1004 HMAC_Init(&hmac
, (unsigned char *)pass
, strlen(pass
), EVP_md5());
1005 HMAC_Update(&hmac
, (unsigned char *)challenge
, decoded_len
);
1006 HMAC_Final(&hmac
, hash
, NULL
);
1007 HMAC_CTX_cleanup(&hmac
);
1010 for (i
= 0; i
< 16; i
++) {
1011 hex
[2 * i
] = hexchar((hash
[i
] >> 4) & 0xf);
1012 hex
[2 * i
+ 1] = hexchar(hash
[i
] & 0xf);
1015 /* response: "<user> <digest in hex>" */
1016 resp_len
= strlen(user
) + 1 + strlen(hex
) + 1;
1017 response
= xmalloc(resp_len
);
1018 sprintf(response
, "%s %s", user
, hex
);
1020 response_64
= xmalloc(ENCODED_SIZE(resp_len
) + 1);
1021 encoded_len
= EVP_EncodeBlock((unsigned char *)response_64
,
1022 (unsigned char *)response
, resp_len
);
1023 if (encoded_len
< 0)
1024 die("EVP_EncodeBlock error");
1025 response_64
[encoded_len
] = '\0';
1026 return (char *)response_64
;
1031 static char *cram(const char *challenge_64
, const char *user
, const char *pass
)
1033 die("If you want to use CRAM-MD5 authenticate method, "
1034 "you have to build git-imap-send with OpenSSL library.");
1039 static int auth_cram_md5(struct imap_store
*ctx
, struct imap_cmd
*cmd
, const char *prompt
)
1044 response
= cram(prompt
, server
.user
, server
.pass
);
1046 ret
= socket_write(&ctx
->imap
->buf
.sock
, response
, strlen(response
));
1047 if (ret
!= strlen(response
))
1048 return error("IMAP error: sending response failed\n");
1055 static struct store
*imap_open_store(struct imap_server_conf
*srvc
)
1057 struct imap_store
*ctx
;
1060 int s
= -1, preauth
;
1062 ctx
= xcalloc(sizeof(*ctx
), 1);
1064 ctx
->imap
= imap
= xcalloc(sizeof(*imap
), 1);
1065 imap
->buf
.sock
.fd
[0] = imap
->buf
.sock
.fd
[1] = -1;
1066 imap
->in_progress_append
= &imap
->in_progress
;
1068 /* open connection to IMAP server */
1071 const char *argv
[] = { srvc
->tunnel
, NULL
};
1072 struct child_process tunnel
= {0};
1074 imap_info("Starting tunnel '%s'... ", srvc
->tunnel
);
1077 tunnel
.use_shell
= 1;
1080 if (start_command(&tunnel
))
1081 die("cannot start proxy %s", argv
[0]);
1083 imap
->buf
.sock
.fd
[0] = tunnel
.out
;
1084 imap
->buf
.sock
.fd
[1] = tunnel
.in
;
1089 struct addrinfo hints
, *ai0
, *ai
;
1093 snprintf(portstr
, sizeof(portstr
), "%d", srvc
->port
);
1095 memset(&hints
, 0, sizeof(hints
));
1096 hints
.ai_socktype
= SOCK_STREAM
;
1097 hints
.ai_protocol
= IPPROTO_TCP
;
1099 imap_info("Resolving %s... ", srvc
->host
);
1100 gai
= getaddrinfo(srvc
->host
, portstr
, &hints
, &ai
);
1102 fprintf(stderr
, "getaddrinfo: %s\n", gai_strerror(gai
));
1107 for (ai0
= ai
; ai
; ai
= ai
->ai_next
) {
1108 char addr
[NI_MAXHOST
];
1110 s
= socket(ai
->ai_family
, ai
->ai_socktype
,
1115 getnameinfo(ai
->ai_addr
, ai
->ai_addrlen
, addr
,
1116 sizeof(addr
), NULL
, 0, NI_NUMERICHOST
);
1117 imap_info("Connecting to [%s]:%s... ", addr
, portstr
);
1119 if (connect(s
, ai
->ai_addr
, ai
->ai_addrlen
) < 0) {
1131 struct sockaddr_in addr
;
1133 memset(&addr
, 0, sizeof(addr
));
1134 addr
.sin_port
= htons(srvc
->port
);
1135 addr
.sin_family
= AF_INET
;
1137 imap_info("Resolving %s... ", srvc
->host
);
1138 he
= gethostbyname(srvc
->host
);
1140 perror("gethostbyname");
1145 addr
.sin_addr
.s_addr
= *((int *) he
->h_addr_list
[0]);
1147 s
= socket(PF_INET
, SOCK_STREAM
, 0);
1149 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr
.sin_addr
), ntohs(addr
.sin_port
));
1150 if (connect(s
, (struct sockaddr
*)&addr
, sizeof(addr
))) {
1157 fputs("Error: unable to connect to server.\n", stderr
);
1161 imap
->buf
.sock
.fd
[0] = s
;
1162 imap
->buf
.sock
.fd
[1] = dup(s
);
1164 if (srvc
->use_ssl
&&
1165 ssl_socket_connect(&imap
->buf
.sock
, 0, srvc
->ssl_verify
)) {
1172 /* read the greeting string */
1173 if (buffer_gets(&imap
->buf
, &rsp
)) {
1174 fprintf(stderr
, "IMAP error: no greeting response\n");
1177 arg
= next_arg(&rsp
);
1178 if (!arg
|| *arg
!= '*' || (arg
= next_arg(&rsp
)) == NULL
) {
1179 fprintf(stderr
, "IMAP error: invalid greeting response\n");
1183 if (!strcmp("PREAUTH", arg
))
1185 else if (strcmp("OK", arg
) != 0) {
1186 fprintf(stderr
, "IMAP error: unknown greeting response\n");
1189 parse_response_code(ctx
, NULL
, rsp
);
1190 if (!imap
->caps
&& imap_exec(ctx
, NULL
, "CAPABILITY") != RESP_OK
)
1195 if (!srvc
->use_ssl
&& CAP(STARTTLS
)) {
1196 if (imap_exec(ctx
, 0, "STARTTLS") != RESP_OK
)
1198 if (ssl_socket_connect(&imap
->buf
.sock
, 1,
1201 /* capabilities may have changed, so get the new capabilities */
1202 if (imap_exec(ctx
, 0, "CAPABILITY") != RESP_OK
)
1206 imap_info("Logging in...\n");
1208 fprintf(stderr
, "Skipping server %s, no user\n", srvc
->host
);
1213 sprintf(prompt
, "Password (%s@%s): ", srvc
->user
, srvc
->host
);
1214 arg
= git_getpass(prompt
);
1220 fprintf(stderr
, "Skipping account %s@%s, no password\n", srvc
->user
, srvc
->host
);
1224 * getpass() returns a pointer to a static buffer. make a copy
1225 * for long term storage.
1227 srvc
->pass
= xstrdup(arg
);
1230 fprintf(stderr
, "Skipping account %s@%s, server forbids LOGIN\n", srvc
->user
, srvc
->host
);
1234 if (srvc
->auth_method
) {
1235 struct imap_cmd_cb cb
;
1237 if (!strcmp(srvc
->auth_method
, "CRAM-MD5")) {
1238 if (!CAP(AUTH_CRAM_MD5
)) {
1239 fprintf(stderr
, "You specified"
1240 "CRAM-MD5 as authentication method, "
1241 "but %s doesn't support it.\n", srvc
->host
);
1246 memset(&cb
, 0, sizeof(cb
));
1247 cb
.cont
= auth_cram_md5
;
1248 if (imap_exec(ctx
, &cb
, "AUTHENTICATE CRAM-MD5") != RESP_OK
) {
1249 fprintf(stderr
, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n");
1253 fprintf(stderr
, "Unknown authentication method:%s\n", srvc
->host
);
1257 if (!imap
->buf
.sock
.ssl
)
1258 imap_warn("*** IMAP Warning *** Password is being "
1259 "sent in the clear\n");
1260 if (imap_exec(ctx
, NULL
, "LOGIN \"%s\" \"%s\"", srvc
->user
, srvc
->pass
) != RESP_OK
) {
1261 fprintf(stderr
, "IMAP error: LOGIN failed\n");
1269 return (struct store
*)ctx
;
1272 imap_close_store(&ctx
->gen
);
1276 static int imap_make_flags(int flags
, char *buf
)
1281 for (i
= d
= 0; i
< ARRAY_SIZE(Flags
); i
++)
1282 if (flags
& (1 << i
)) {
1285 for (s
= Flags
[i
]; *s
; s
++)
1293 static void lf_to_crlf(struct msg_data
*msg
)
1296 int i
, j
, lfnum
= 0;
1298 if (msg
->data
[0] == '\n')
1300 for (i
= 1; i
< msg
->len
; i
++) {
1301 if (msg
->data
[i
- 1] != '\r' && msg
->data
[i
] == '\n')
1305 new = xmalloc(msg
->len
+ lfnum
);
1306 if (msg
->data
[0] == '\n') {
1312 new[0] = msg
->data
[0];
1316 for ( ; i
< msg
->len
; i
++) {
1317 if (msg
->data
[i
] != '\n') {
1318 new[j
++] = msg
->data
[i
];
1321 if (msg
->data
[i
- 1] != '\r')
1323 /* otherwise it already had CR before */
1331 static int imap_store_msg(struct store
*gctx
, struct msg_data
*data
)
1333 struct imap_store
*ctx
= (struct imap_store
*)gctx
;
1334 struct imap
*imap
= ctx
->imap
;
1335 struct imap_cmd_cb cb
;
1336 const char *prefix
, *box
;
1341 memset(&cb
, 0, sizeof(cb
));
1343 cb
.dlen
= data
->len
;
1344 cb
.data
= xmalloc(cb
.dlen
);
1345 memcpy(cb
.data
, data
->data
, data
->len
);
1349 d
= imap_make_flags(data
->flags
, flagstr
);
1355 prefix
= !strcmp(box
, "INBOX") ? "" : ctx
->prefix
;
1357 ret
= imap_exec_m(ctx
, &cb
, "APPEND \"%s%s\" %s", prefix
, box
, flagstr
);
1358 imap
->caps
= imap
->rcaps
;
1366 static void encode_html_chars(struct strbuf
*p
)
1369 for (i
= 0; i
< p
->len
; i
++) {
1370 if (p
->buf
[i
] == '&')
1371 strbuf_splice(p
, i
, 1, "&", 5);
1372 if (p
->buf
[i
] == '<')
1373 strbuf_splice(p
, i
, 1, "<", 4);
1374 if (p
->buf
[i
] == '>')
1375 strbuf_splice(p
, i
, 1, ">", 4);
1376 if (p
->buf
[i
] == '"')
1377 strbuf_splice(p
, i
, 1, """, 6);
1380 static void wrap_in_html(struct msg_data
*msg
)
1382 struct strbuf buf
= STRBUF_INIT
;
1383 struct strbuf
**lines
;
1385 static char *content_type
= "Content-Type: text/html;\n";
1386 static char *pre_open
= "<pre>\n";
1387 static char *pre_close
= "</pre>\n";
1388 int added_header
= 0;
1390 strbuf_attach(&buf
, msg
->data
, msg
->len
, msg
->len
);
1391 lines
= strbuf_split(&buf
, '\n');
1392 strbuf_release(&buf
);
1393 for (p
= lines
; *p
; p
++) {
1394 if (! added_header
) {
1395 if ((*p
)->len
== 1 && *((*p
)->buf
) == '\n') {
1396 strbuf_addstr(&buf
, content_type
);
1397 strbuf_addbuf(&buf
, *p
);
1398 strbuf_addstr(&buf
, pre_open
);
1404 encode_html_chars(*p
);
1405 strbuf_addbuf(&buf
, *p
);
1407 strbuf_addstr(&buf
, pre_close
);
1408 strbuf_list_free(lines
);
1410 msg
->data
= strbuf_detach(&buf
, NULL
);
1413 #define CHUNKSIZE 0x1000
1415 static int read_message(FILE *f
, struct msg_data
*msg
)
1417 struct strbuf buf
= STRBUF_INIT
;
1419 memset(msg
, 0, sizeof(*msg
));
1422 if (strbuf_fread(&buf
, CHUNKSIZE
, f
) <= 0)
1427 msg
->data
= strbuf_detach(&buf
, NULL
);
1431 static int count_messages(struct msg_data
*msg
)
1434 char *p
= msg
->data
;
1437 if (!prefixcmp(p
, "From ")) {
1438 p
= strstr(p
+5, "\nFrom: ");
1440 p
= strstr(p
+7, "\nDate: ");
1442 p
= strstr(p
+7, "\nSubject: ");
1447 p
= strstr(p
+5, "\nFrom ");
1455 static int split_msg(struct msg_data
*all_msgs
, struct msg_data
*msg
, int *ofs
)
1459 memset(msg
, 0, sizeof *msg
);
1460 if (*ofs
>= all_msgs
->len
)
1463 data
= &all_msgs
->data
[*ofs
];
1464 msg
->len
= all_msgs
->len
- *ofs
;
1466 if (msg
->len
< 5 || prefixcmp(data
, "From "))
1469 p
= strchr(data
, '\n');
1477 p
= strstr(data
, "\nFrom ");
1479 msg
->len
= &p
[1] - data
;
1481 msg
->data
= xmemdupz(data
, msg
->len
);
1486 static char *imap_folder
;
1488 static int git_imap_config(const char *key
, const char *val
, void *cb
)
1490 char imap_key
[] = "imap.";
1492 if (strncmp(key
, imap_key
, sizeof imap_key
- 1))
1495 key
+= sizeof imap_key
- 1;
1497 /* check booleans first, and barf on others */
1498 if (!strcmp("sslverify", key
))
1499 server
.ssl_verify
= git_config_bool(key
, val
);
1500 else if (!strcmp("preformattedhtml", key
))
1501 server
.use_html
= git_config_bool(key
, val
);
1503 return config_error_nonbool(key
);
1505 if (!strcmp("folder", key
)) {
1506 imap_folder
= xstrdup(val
);
1507 } else if (!strcmp("host", key
)) {
1508 if (!prefixcmp(val
, "imap:"))
1510 else if (!prefixcmp(val
, "imaps:")) {
1514 if (!prefixcmp(val
, "//"))
1516 server
.host
= xstrdup(val
);
1517 } else if (!strcmp("user", key
))
1518 server
.user
= xstrdup(val
);
1519 else if (!strcmp("pass", key
))
1520 server
.pass
= xstrdup(val
);
1521 else if (!strcmp("port", key
))
1522 server
.port
= git_config_int(key
, val
);
1523 else if (!strcmp("tunnel", key
))
1524 server
.tunnel
= xstrdup(val
);
1525 else if (!strcmp("authmethod", key
))
1526 server
.auth_method
= xstrdup(val
);
1531 int main(int argc
, char **argv
)
1533 struct msg_data all_msgs
, msg
;
1534 struct store
*ctx
= NULL
;
1540 git_extract_argv0_path(argv
[0]);
1543 usage(imap_send_usage
);
1545 setup_git_directory_gently(&nongit_ok
);
1546 git_config(git_imap_config
, NULL
);
1549 server
.port
= server
.use_ssl
? 993 : 143;
1552 fprintf(stderr
, "no imap store specified\n");
1556 if (!server
.tunnel
) {
1557 fprintf(stderr
, "no imap host specified\n");
1560 server
.host
= "tunnel";
1563 /* read the messages */
1564 if (!read_message(stdin
, &all_msgs
)) {
1565 fprintf(stderr
, "nothing to send\n");
1569 total
= count_messages(&all_msgs
);
1571 fprintf(stderr
, "no messages to send\n");
1575 /* write it to the imap server */
1576 ctx
= imap_open_store(&server
);
1578 fprintf(stderr
, "failed to open store\n");
1582 fprintf(stderr
, "sending %d message%s\n", total
, (total
!= 1) ? "s" : "");
1583 ctx
->name
= imap_folder
;
1585 unsigned percent
= n
* 100 / total
;
1586 fprintf(stderr
, "%4u%% (%d/%d) done\r", percent
, n
, total
);
1587 if (!split_msg(&all_msgs
, &msg
, &ofs
))
1589 if (server
.use_html
)
1591 r
= imap_store_msg(ctx
, &msg
);
1596 fprintf(stderr
, "\n");
1598 imap_close_store(ctx
);