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, see <http://www.gnu.org/licenses/>.
26 #include "credential.h"
28 #include "run-command.h"
29 #include "parse-options.h"
33 #ifdef USE_CURL_FOR_IMAP_SEND
37 #if defined(USE_CURL_FOR_IMAP_SEND)
38 /* Always default to curl if it's available. */
39 #define USE_CURL_DEFAULT 1
41 /* We don't have curl, so continue to use the historical implementation */
42 #define USE_CURL_DEFAULT 0
46 static int use_curl
= USE_CURL_DEFAULT
;
48 static const char * const imap_send_usage
[] = { "git imap-send [-v] [-q] [--[no-]curl] < <mbox>", NULL
};
50 static struct option imap_send_options
[] = {
51 OPT__VERBOSITY(&verbosity
),
52 OPT_BOOL(0, "curl", &use_curl
, "use libcurl to communicate with the IMAP server"),
58 #define DRV_MSG_BAD -1
59 #define DRV_BOX_BAD -2
60 #define DRV_STORE_BAD -3
62 __attribute__((format (printf
, 1, 2)))
63 static void imap_info(const char *, ...);
64 __attribute__((format (printf
, 1, 2)))
65 static void imap_warn(const char *, ...);
67 static char *next_arg(char **);
69 __attribute__((format (printf
, 3, 4)))
70 static int nfsnprintf(char *buf
, int blen
, const char *fmt
, ...);
72 static int nfvasprintf(char **strp
, const char *fmt
, va_list ap
)
77 len
= vsnprintf(tmp
, sizeof(tmp
), fmt
, ap
);
79 die("Fatal: Out of memory");
80 if (len
>= sizeof(tmp
))
81 die("imap command overflow!");
82 *strp
= xmemdupz(tmp
, len
);
86 struct imap_server_conf
{
97 const char *auth_method
;
100 static struct imap_server_conf server
= {
111 NULL
, /* auth_method */
120 struct imap_socket sock
;
129 int uidnext
; /* from SELECT responses */
130 unsigned caps
, rcaps
; /* CAPABILITY results */
132 int nexttag
, num_in_progress
, literal_pending
;
133 struct imap_cmd
*in_progress
, **in_progress_append
;
134 struct imap_buffer buf
; /* this is BIG, so put it last */
138 /* currently open mailbox */
139 const char *name
; /* foreign! maybe preset? */
146 int (*cont
)(struct imap_store
*ctx
, struct imap_cmd
*cmd
, const char *prompt
);
147 void (*done
)(struct imap_store
*ctx
, struct imap_cmd
*cmd
, int response
);
155 struct imap_cmd
*next
;
156 struct imap_cmd_cb cb
;
161 #define CAP(cap) (imap->caps & (1 << (cap)))
172 static const char *cap_list
[] = {
185 static int get_cmd_result(struct imap_store
*ctx
, struct imap_cmd
*tcmd
);
189 static void ssl_socket_perror(const char *func
)
191 fprintf(stderr
, "%s: %s\n", func
, ERR_error_string(ERR_get_error(), NULL
));
195 static void socket_perror(const char *func
, struct imap_socket
*sock
, int ret
)
199 int sslerr
= SSL_get_error(sock
->ssl
, ret
);
203 case SSL_ERROR_SYSCALL
:
204 perror("SSL_connect");
207 ssl_socket_perror("SSL_connect");
216 fprintf(stderr
, "%s: unexpected EOF\n", func
);
221 static int ssl_socket_connect(struct imap_socket
*sock
, int use_tls_only
, int verify
)
223 fprintf(stderr
, "SSL requested but SSL support not compiled in\n");
229 static int host_matches(const char *host
, const char *pattern
)
231 if (pattern
[0] == '*' && pattern
[1] == '.') {
233 if (!(host
= strchr(host
, '.')))
238 return *host
&& *pattern
&& !strcasecmp(host
, pattern
);
241 static int verify_hostname(X509
*cert
, const char *hostname
)
247 STACK_OF(GENERAL_NAME
) *subj_alt_names
;
249 /* try the DNS subjectAltNames */
251 if ((subj_alt_names
= X509_get_ext_d2i(cert
, NID_subject_alt_name
, NULL
, NULL
))) {
252 int num_subj_alt_names
= sk_GENERAL_NAME_num(subj_alt_names
);
253 for (i
= 0; !found
&& i
< num_subj_alt_names
; i
++) {
254 GENERAL_NAME
*subj_alt_name
= sk_GENERAL_NAME_value(subj_alt_names
, i
);
255 if (subj_alt_name
->type
== GEN_DNS
&&
256 strlen((const char *)subj_alt_name
->d
.ia5
->data
) == (size_t)subj_alt_name
->d
.ia5
->length
&&
257 host_matches(hostname
, (const char *)(subj_alt_name
->d
.ia5
->data
)))
260 sk_GENERAL_NAME_pop_free(subj_alt_names
, GENERAL_NAME_free
);
265 /* try the common name */
266 if (!(subj
= X509_get_subject_name(cert
)))
267 return error("cannot get certificate subject");
268 if ((len
= X509_NAME_get_text_by_NID(subj
, NID_commonName
, cname
, sizeof(cname
))) < 0)
269 return error("cannot get certificate common name");
270 if (strlen(cname
) == (size_t)len
&& host_matches(hostname
, cname
))
272 return error("certificate owner '%s' does not match hostname '%s'",
276 static int ssl_socket_connect(struct imap_socket
*sock
, int use_tls_only
, int verify
)
278 #if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
279 const SSL_METHOD
*meth
;
288 SSL_load_error_strings();
290 meth
= SSLv23_method();
292 ssl_socket_perror("SSLv23_method");
296 ctx
= SSL_CTX_new(meth
);
298 ssl_socket_perror("SSL_CTX_new");
303 SSL_CTX_set_options(ctx
, SSL_OP_NO_SSLv2
| SSL_OP_NO_SSLv3
);
306 SSL_CTX_set_verify(ctx
, SSL_VERIFY_PEER
, NULL
);
308 if (!SSL_CTX_set_default_verify_paths(ctx
)) {
309 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
312 sock
->ssl
= SSL_new(ctx
);
314 ssl_socket_perror("SSL_new");
317 if (!SSL_set_rfd(sock
->ssl
, sock
->fd
[0])) {
318 ssl_socket_perror("SSL_set_rfd");
321 if (!SSL_set_wfd(sock
->ssl
, sock
->fd
[1])) {
322 ssl_socket_perror("SSL_set_wfd");
326 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
329 * OpenSSL does not document this function, but the implementation
330 * returns 1 on success, 0 on failure after calling SSLerr().
332 ret
= SSL_set_tlsext_host_name(sock
->ssl
, server
.host
);
334 warning("SSL_set_tlsext_host_name(%s) failed.", server
.host
);
337 ret
= SSL_connect(sock
->ssl
);
339 socket_perror("SSL_connect", sock
, ret
);
344 /* make sure the hostname matches that of the certificate */
345 cert
= SSL_get_peer_certificate(sock
->ssl
);
347 return error("unable to get peer certificate.");
348 if (verify_hostname(cert
, server
.host
) < 0)
356 static int socket_read(struct imap_socket
*sock
, char *buf
, int len
)
361 n
= SSL_read(sock
->ssl
, buf
, len
);
364 n
= xread(sock
->fd
[0], buf
, len
);
366 socket_perror("read", sock
, n
);
369 sock
->fd
[0] = sock
->fd
[1] = -1;
374 static int socket_write(struct imap_socket
*sock
, const char *buf
, int len
)
379 n
= SSL_write(sock
->ssl
, buf
, len
);
382 n
= write_in_full(sock
->fd
[1], buf
, len
);
384 socket_perror("write", sock
, n
);
387 sock
->fd
[0] = sock
->fd
[1] = -1;
392 static void socket_shutdown(struct imap_socket
*sock
)
396 SSL_shutdown(sock
->ssl
);
404 /* simple line buffering */
405 static int buffer_gets(struct imap_buffer
*b
, char **s
)
408 int start
= b
->offset
;
413 /* make sure we have enough data to read the \r\n sequence */
414 if (b
->offset
+ 1 >= b
->bytes
) {
416 /* shift down used bytes */
419 assert(start
<= b
->bytes
);
420 n
= b
->bytes
- start
;
423 memmove(b
->buf
, b
->buf
+ start
, n
);
429 n
= socket_read(&b
->sock
, b
->buf
+ b
->bytes
,
430 sizeof(b
->buf
) - b
->bytes
);
438 if (b
->buf
[b
->offset
] == '\r') {
439 assert(b
->offset
+ 1 < b
->bytes
);
440 if (b
->buf
[b
->offset
+ 1] == '\n') {
441 b
->buf
[b
->offset
] = 0; /* terminate the string */
442 b
->offset
+= 2; /* next line */
454 __attribute__((format (printf
, 1, 2)))
455 static void imap_info(const char *msg
, ...)
459 if (0 <= verbosity
) {
467 __attribute__((format (printf
, 1, 2)))
468 static void imap_warn(const char *msg
, ...)
472 if (-2 < verbosity
) {
474 vfprintf(stderr
, msg
, va
);
479 static char *next_arg(char **s
)
485 while (isspace((unsigned char) **s
))
494 *s
= strchr(*s
, '"');
497 while (**s
&& !isspace((unsigned char) **s
))
509 __attribute__((format (printf
, 3, 4)))
510 static int nfsnprintf(char *buf
, int blen
, const char *fmt
, ...)
516 if (blen
<= 0 || (unsigned)(ret
= vsnprintf(buf
, blen
, fmt
, va
)) >= (unsigned)blen
)
517 BUG("buffer too small. Please report a bug.");
522 static struct imap_cmd
*issue_imap_cmd(struct imap_store
*ctx
,
523 struct imap_cmd_cb
*cb
,
524 const char *fmt
, va_list ap
)
526 struct imap
*imap
= ctx
->imap
;
527 struct imap_cmd
*cmd
;
531 cmd
= xmalloc(sizeof(struct imap_cmd
));
532 nfvasprintf(&cmd
->cmd
, fmt
, ap
);
533 cmd
->tag
= ++imap
->nexttag
;
538 memset(&cmd
->cb
, 0, sizeof(cmd
->cb
));
540 while (imap
->literal_pending
)
541 get_cmd_result(ctx
, NULL
);
544 bufl
= nfsnprintf(buf
, sizeof(buf
), "%d %s\r\n", cmd
->tag
, cmd
->cmd
);
546 bufl
= nfsnprintf(buf
, sizeof(buf
), "%d %s{%d%s}\r\n",
547 cmd
->tag
, cmd
->cmd
, cmd
->cb
.dlen
,
548 CAP(LITERALPLUS
) ? "+" : "");
551 if (imap
->num_in_progress
)
552 printf("(%d in progress) ", imap
->num_in_progress
);
553 if (!starts_with(cmd
->cmd
, "LOGIN"))
554 printf(">>> %s", buf
);
556 printf(">>> %d LOGIN <user> <pass>\n", cmd
->tag
);
558 if (socket_write(&imap
->buf
.sock
, buf
, bufl
) != bufl
) {
566 if (CAP(LITERALPLUS
)) {
567 n
= socket_write(&imap
->buf
.sock
, cmd
->cb
.data
, cmd
->cb
.dlen
);
569 if (n
!= cmd
->cb
.dlen
||
570 socket_write(&imap
->buf
.sock
, "\r\n", 2) != 2) {
577 imap
->literal_pending
= 1;
578 } else if (cmd
->cb
.cont
)
579 imap
->literal_pending
= 1;
581 *imap
->in_progress_append
= cmd
;
582 imap
->in_progress_append
= &cmd
->next
;
583 imap
->num_in_progress
++;
587 __attribute__((format (printf
, 3, 4)))
588 static int imap_exec(struct imap_store
*ctx
, struct imap_cmd_cb
*cb
,
589 const char *fmt
, ...)
592 struct imap_cmd
*cmdp
;
595 cmdp
= issue_imap_cmd(ctx
, cb
, fmt
, ap
);
600 return get_cmd_result(ctx
, cmdp
);
603 __attribute__((format (printf
, 3, 4)))
604 static int imap_exec_m(struct imap_store
*ctx
, struct imap_cmd_cb
*cb
,
605 const char *fmt
, ...)
608 struct imap_cmd
*cmdp
;
611 cmdp
= issue_imap_cmd(ctx
, cb
, fmt
, ap
);
614 return DRV_STORE_BAD
;
616 switch (get_cmd_result(ctx
, cmdp
)) {
617 case RESP_BAD
: return DRV_STORE_BAD
;
618 case RESP_NO
: return DRV_MSG_BAD
;
619 default: return DRV_OK
;
623 static int skip_imap_list_l(char **sp
, int level
)
628 while (isspace((unsigned char)*s
))
630 if (level
&& *s
== ')') {
637 if (skip_imap_list_l(&s
, level
+ 1))
639 } else if (*s
== '"') {
642 for (; *s
!= '"'; s
++)
648 for (; *s
&& !isspace((unsigned char)*s
); s
++)
649 if (level
&& *s
== ')')
665 static void skip_list(char **sp
)
667 skip_imap_list_l(sp
, 0);
670 static void parse_capability(struct imap
*imap
, char *cmd
)
675 imap
->caps
= 0x80000000;
676 while ((arg
= next_arg(&cmd
)))
677 for (i
= 0; i
< ARRAY_SIZE(cap_list
); i
++)
678 if (!strcmp(cap_list
[i
], arg
))
679 imap
->caps
|= 1 << i
;
680 imap
->rcaps
= imap
->caps
;
683 static int parse_response_code(struct imap_store
*ctx
, struct imap_cmd_cb
*cb
,
686 struct imap
*imap
= ctx
->imap
;
690 return RESP_OK
; /* no response code */
692 if (!(p
= strchr(s
, ']'))) {
693 fprintf(stderr
, "IMAP error: malformed response code\n");
699 fprintf(stderr
, "IMAP error: empty response code\n");
702 if (!strcmp("UIDVALIDITY", arg
)) {
703 if (!(arg
= next_arg(&s
)) || !(ctx
->uidvalidity
= atoi(arg
))) {
704 fprintf(stderr
, "IMAP error: malformed UIDVALIDITY status\n");
707 } else if (!strcmp("UIDNEXT", arg
)) {
708 if (!(arg
= next_arg(&s
)) || !(imap
->uidnext
= atoi(arg
))) {
709 fprintf(stderr
, "IMAP error: malformed NEXTUID status\n");
712 } else if (!strcmp("CAPABILITY", arg
)) {
713 parse_capability(imap
, s
);
714 } else if (!strcmp("ALERT", arg
)) {
715 /* RFC2060 says that these messages MUST be displayed
718 for (; isspace((unsigned char)*p
); p
++);
719 fprintf(stderr
, "*** IMAP ALERT *** %s\n", p
);
720 } else if (cb
&& cb
->ctx
&& !strcmp("APPENDUID", arg
)) {
721 if (!(arg
= next_arg(&s
)) || !(ctx
->uidvalidity
= atoi(arg
)) ||
722 !(arg
= next_arg(&s
)) || !(*(int *)cb
->ctx
= atoi(arg
))) {
723 fprintf(stderr
, "IMAP error: malformed APPENDUID status\n");
730 static int get_cmd_result(struct imap_store
*ctx
, struct imap_cmd
*tcmd
)
732 struct imap
*imap
= ctx
->imap
;
733 struct imap_cmd
*cmdp
, **pcmdp
;
735 const char *arg
, *arg1
;
736 int n
, resp
, resp2
, tag
;
739 if (buffer_gets(&imap
->buf
, &cmd
))
742 arg
= next_arg(&cmd
);
744 fprintf(stderr
, "IMAP error: empty response\n");
748 arg
= next_arg(&cmd
);
750 fprintf(stderr
, "IMAP error: unable to parse untagged response\n");
754 if (!strcmp("NAMESPACE", arg
)) {
755 /* rfc2342 NAMESPACE response. */
756 skip_list(&cmd
); /* Personal mailboxes */
757 skip_list(&cmd
); /* Others' mailboxes */
758 skip_list(&cmd
); /* Shared mailboxes */
759 } else if (!strcmp("OK", arg
) || !strcmp("BAD", arg
) ||
760 !strcmp("NO", arg
) || !strcmp("BYE", arg
)) {
761 if ((resp
= parse_response_code(ctx
, NULL
, cmd
)) != RESP_OK
)
763 } else if (!strcmp("CAPABILITY", arg
)) {
764 parse_capability(imap
, cmd
);
765 } else if ((arg1
= next_arg(&cmd
))) {
767 * Unhandled response-data with at least two words.
770 * NEEDSWORK: Previously this case handled '<num> EXISTS'
771 * and '<num> RECENT' but as a probably-unintended side
772 * effect it ignores other unrecognized two-word
773 * responses. imap-send doesn't ever try to read
774 * messages or mailboxes these days, so consider
775 * eliminating this case.
778 fprintf(stderr
, "IMAP error: unable to parse untagged response\n");
781 } else if (!imap
->in_progress
) {
782 fprintf(stderr
, "IMAP error: unexpected reply: %s %s\n", arg
, cmd
? cmd
: "");
784 } else if (*arg
== '+') {
785 /* This can happen only with the last command underway, as
786 it enforces a round-trip. */
787 cmdp
= (struct imap_cmd
*)((char *)imap
->in_progress_append
-
788 offsetof(struct imap_cmd
, next
));
790 n
= socket_write(&imap
->buf
.sock
, cmdp
->cb
.data
, cmdp
->cb
.dlen
);
791 FREE_AND_NULL(cmdp
->cb
.data
);
792 if (n
!= (int)cmdp
->cb
.dlen
)
794 } else if (cmdp
->cb
.cont
) {
795 if (cmdp
->cb
.cont(ctx
, cmdp
, cmd
))
798 fprintf(stderr
, "IMAP error: unexpected command continuation request\n");
801 if (socket_write(&imap
->buf
.sock
, "\r\n", 2) != 2)
804 imap
->literal_pending
= 0;
809 for (pcmdp
= &imap
->in_progress
; (cmdp
= *pcmdp
); pcmdp
= &cmdp
->next
)
810 if (cmdp
->tag
== tag
)
812 fprintf(stderr
, "IMAP error: unexpected tag %s\n", arg
);
815 if (!(*pcmdp
= cmdp
->next
))
816 imap
->in_progress_append
= pcmdp
;
817 imap
->num_in_progress
--;
818 if (cmdp
->cb
.cont
|| cmdp
->cb
.data
)
819 imap
->literal_pending
= 0;
820 arg
= next_arg(&cmd
);
823 if (!strcmp("OK", arg
))
826 if (!strcmp("NO", arg
))
828 else /*if (!strcmp("BAD", arg))*/
830 fprintf(stderr
, "IMAP command '%s' returned response (%s) - %s\n",
831 !starts_with(cmdp
->cmd
, "LOGIN") ?
832 cmdp
->cmd
: "LOGIN <user> <pass>",
833 arg
, cmd
? cmd
: "");
835 if ((resp2
= parse_response_code(ctx
, &cmdp
->cb
, cmd
)) > resp
)
838 cmdp
->cb
.done(ctx
, cmdp
, resp
);
842 if (!tcmd
|| tcmd
== cmdp
)
849 static void imap_close_server(struct imap_store
*ictx
)
851 struct imap
*imap
= ictx
->imap
;
853 if (imap
->buf
.sock
.fd
[0] != -1) {
854 imap_exec(ictx
, NULL
, "LOGOUT");
855 socket_shutdown(&imap
->buf
.sock
);
860 static void imap_close_store(struct imap_store
*ctx
)
862 imap_close_server(ctx
);
869 * hexchar() and cram() functions are based on the code from the isync
870 * project (http://isync.sf.net/).
872 static char hexchar(unsigned int b
)
874 return b
< 10 ? '0' + b
: 'a' + (b
- 10);
877 #define ENCODED_SIZE(n) (4 * DIV_ROUND_UP((n), 3))
878 static char *cram(const char *challenge_64
, const char *user
, const char *pass
)
880 int i
, resp_len
, encoded_len
, decoded_len
;
881 unsigned char hash
[16];
883 char *response
, *response_64
, *challenge
;
886 * length of challenge_64 (i.e. base-64 encoded string) is a good
887 * enough upper bound for challenge (decoded result).
889 encoded_len
= strlen(challenge_64
);
890 challenge
= xmalloc(encoded_len
);
891 decoded_len
= EVP_DecodeBlock((unsigned char *)challenge
,
892 (unsigned char *)challenge_64
, encoded_len
);
894 die("invalid challenge %s", challenge_64
);
895 if (!HMAC(EVP_md5(), pass
, strlen(pass
), (unsigned char *)challenge
, decoded_len
, hash
, NULL
))
899 for (i
= 0; i
< 16; i
++) {
900 hex
[2 * i
] = hexchar((hash
[i
] >> 4) & 0xf);
901 hex
[2 * i
+ 1] = hexchar(hash
[i
] & 0xf);
904 /* response: "<user> <digest in hex>" */
905 response
= xstrfmt("%s %s", user
, hex
);
906 resp_len
= strlen(response
);
908 response_64
= xmallocz(ENCODED_SIZE(resp_len
));
909 encoded_len
= EVP_EncodeBlock((unsigned char *)response_64
,
910 (unsigned char *)response
, resp_len
);
912 die("EVP_EncodeBlock error");
913 return (char *)response_64
;
918 static char *cram(const char *challenge_64
, const char *user
, const char *pass
)
920 die("If you want to use CRAM-MD5 authenticate method, "
921 "you have to build git-imap-send with OpenSSL library.");
926 static int auth_cram_md5(struct imap_store
*ctx
, struct imap_cmd
*cmd
, const char *prompt
)
931 response
= cram(prompt
, server
.user
, server
.pass
);
933 ret
= socket_write(&ctx
->imap
->buf
.sock
, response
, strlen(response
));
934 if (ret
!= strlen(response
))
935 return error("IMAP error: sending response failed");
942 static void server_fill_credential(struct imap_server_conf
*srvc
, struct credential
*cred
)
944 if (srvc
->user
&& srvc
->pass
)
947 cred
->protocol
= xstrdup(srvc
->use_ssl
? "imaps" : "imap");
948 cred
->host
= xstrdup(srvc
->host
);
950 cred
->username
= xstrdup_or_null(srvc
->user
);
951 cred
->password
= xstrdup_or_null(srvc
->pass
);
953 credential_fill(cred
);
956 srvc
->user
= xstrdup(cred
->username
);
958 srvc
->pass
= xstrdup(cred
->password
);
961 static struct imap_store
*imap_open_store(struct imap_server_conf
*srvc
, const char *folder
)
963 struct credential cred
= CREDENTIAL_INIT
;
964 struct imap_store
*ctx
;
969 CALLOC_ARRAY(ctx
, 1);
971 ctx
->imap
= CALLOC_ARRAY(imap
, 1);
972 imap
->buf
.sock
.fd
[0] = imap
->buf
.sock
.fd
[1] = -1;
973 imap
->in_progress_append
= &imap
->in_progress
;
975 /* open connection to IMAP server */
978 struct child_process tunnel
= CHILD_PROCESS_INIT
;
980 imap_info("Starting tunnel '%s'... ", srvc
->tunnel
);
982 strvec_push(&tunnel
.args
, srvc
->tunnel
);
983 tunnel
.use_shell
= 1;
986 if (start_command(&tunnel
))
987 die("cannot start proxy %s", srvc
->tunnel
);
989 imap
->buf
.sock
.fd
[0] = tunnel
.out
;
990 imap
->buf
.sock
.fd
[1] = tunnel
.in
;
995 struct addrinfo hints
, *ai0
, *ai
;
999 xsnprintf(portstr
, sizeof(portstr
), "%d", srvc
->port
);
1001 memset(&hints
, 0, sizeof(hints
));
1002 hints
.ai_socktype
= SOCK_STREAM
;
1003 hints
.ai_protocol
= IPPROTO_TCP
;
1005 imap_info("Resolving %s... ", srvc
->host
);
1006 gai
= getaddrinfo(srvc
->host
, portstr
, &hints
, &ai
);
1008 fprintf(stderr
, "getaddrinfo: %s\n", gai_strerror(gai
));
1013 for (ai0
= ai
; ai
; ai
= ai
->ai_next
) {
1014 char addr
[NI_MAXHOST
];
1016 s
= socket(ai
->ai_family
, ai
->ai_socktype
,
1021 getnameinfo(ai
->ai_addr
, ai
->ai_addrlen
, addr
,
1022 sizeof(addr
), NULL
, 0, NI_NUMERICHOST
);
1023 imap_info("Connecting to [%s]:%s... ", addr
, portstr
);
1025 if (connect(s
, ai
->ai_addr
, ai
->ai_addrlen
) < 0) {
1037 struct sockaddr_in addr
;
1039 memset(&addr
, 0, sizeof(addr
));
1040 addr
.sin_port
= htons(srvc
->port
);
1041 addr
.sin_family
= AF_INET
;
1043 imap_info("Resolving %s... ", srvc
->host
);
1044 he
= gethostbyname(srvc
->host
);
1046 perror("gethostbyname");
1051 addr
.sin_addr
.s_addr
= *((int *) he
->h_addr_list
[0]);
1053 s
= socket(PF_INET
, SOCK_STREAM
, 0);
1055 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr
.sin_addr
), ntohs(addr
.sin_port
));
1056 if (connect(s
, (struct sockaddr
*)&addr
, sizeof(addr
))) {
1063 fputs("Error: unable to connect to server.\n", stderr
);
1067 imap
->buf
.sock
.fd
[0] = s
;
1068 imap
->buf
.sock
.fd
[1] = dup(s
);
1070 if (srvc
->use_ssl
&&
1071 ssl_socket_connect(&imap
->buf
.sock
, 0, srvc
->ssl_verify
)) {
1078 /* read the greeting string */
1079 if (buffer_gets(&imap
->buf
, &rsp
)) {
1080 fprintf(stderr
, "IMAP error: no greeting response\n");
1083 arg
= next_arg(&rsp
);
1084 if (!arg
|| *arg
!= '*' || (arg
= next_arg(&rsp
)) == NULL
) {
1085 fprintf(stderr
, "IMAP error: invalid greeting response\n");
1089 if (!strcmp("PREAUTH", arg
))
1091 else if (strcmp("OK", arg
) != 0) {
1092 fprintf(stderr
, "IMAP error: unknown greeting response\n");
1095 parse_response_code(ctx
, NULL
, rsp
);
1096 if (!imap
->caps
&& imap_exec(ctx
, NULL
, "CAPABILITY") != RESP_OK
)
1101 if (!srvc
->use_ssl
&& CAP(STARTTLS
)) {
1102 if (imap_exec(ctx
, NULL
, "STARTTLS") != RESP_OK
)
1104 if (ssl_socket_connect(&imap
->buf
.sock
, 1,
1107 /* capabilities may have changed, so get the new capabilities */
1108 if (imap_exec(ctx
, NULL
, "CAPABILITY") != RESP_OK
)
1112 imap_info("Logging in...\n");
1113 server_fill_credential(srvc
, &cred
);
1115 if (srvc
->auth_method
) {
1116 struct imap_cmd_cb cb
;
1118 if (!strcmp(srvc
->auth_method
, "CRAM-MD5")) {
1119 if (!CAP(AUTH_CRAM_MD5
)) {
1120 fprintf(stderr
, "You specified "
1121 "CRAM-MD5 as authentication method, "
1122 "but %s doesn't support it.\n", srvc
->host
);
1127 memset(&cb
, 0, sizeof(cb
));
1128 cb
.cont
= auth_cram_md5
;
1129 if (imap_exec(ctx
, &cb
, "AUTHENTICATE CRAM-MD5") != RESP_OK
) {
1130 fprintf(stderr
, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n");
1134 fprintf(stderr
, "Unknown authentication method:%s\n", srvc
->host
);
1139 fprintf(stderr
, "Skipping account %s@%s, server forbids LOGIN\n",
1140 srvc
->user
, srvc
->host
);
1143 if (!imap
->buf
.sock
.ssl
)
1144 imap_warn("*** IMAP Warning *** Password is being "
1145 "sent in the clear\n");
1146 if (imap_exec(ctx
, NULL
, "LOGIN \"%s\" \"%s\"", srvc
->user
, srvc
->pass
) != RESP_OK
) {
1147 fprintf(stderr
, "IMAP error: LOGIN failed\n");
1154 credential_approve(&cred
);
1155 credential_clear(&cred
);
1157 /* check the target mailbox exists */
1159 switch (imap_exec(ctx
, NULL
, "EXAMINE \"%s\"", ctx
->name
)) {
1164 fprintf(stderr
, "IMAP error: could not check mailbox\n");
1167 if (imap_exec(ctx
, NULL
, "CREATE \"%s\"", ctx
->name
) == RESP_OK
) {
1168 imap_info("Created missing mailbox\n");
1170 fprintf(stderr
, "IMAP error: could not create missing mailbox\n");
1181 credential_reject(&cred
);
1182 credential_clear(&cred
);
1185 imap_close_store(ctx
);
1190 * Insert CR characters as necessary in *msg to ensure that every LF
1191 * character in *msg is preceded by a CR.
1193 static void lf_to_crlf(struct strbuf
*msg
)
1199 /* First pass: tally, in j, the size of the new_msg string: */
1200 for (i
= j
= 0, lastc
= '\0'; i
< msg
->len
; i
++) {
1201 if (msg
->buf
[i
] == '\n' && lastc
!= '\r')
1202 j
++; /* a CR will need to be added here */
1203 lastc
= msg
->buf
[i
];
1207 new_msg
= xmallocz(j
);
1210 * Second pass: write the new_msg string. Note that this loop is
1211 * otherwise identical to the first pass.
1213 for (i
= j
= 0, lastc
= '\0'; i
< msg
->len
; i
++) {
1214 if (msg
->buf
[i
] == '\n' && lastc
!= '\r')
1215 new_msg
[j
++] = '\r';
1216 lastc
= new_msg
[j
++] = msg
->buf
[i
];
1218 strbuf_attach(msg
, new_msg
, j
, j
+ 1);
1222 * Store msg to IMAP. Also detach and free the data from msg->data,
1223 * leaving msg->data empty.
1225 static int imap_store_msg(struct imap_store
*ctx
, struct strbuf
*msg
)
1227 struct imap
*imap
= ctx
->imap
;
1228 struct imap_cmd_cb cb
;
1229 const char *prefix
, *box
;
1233 memset(&cb
, 0, sizeof(cb
));
1236 cb
.data
= strbuf_detach(msg
, NULL
);
1239 prefix
= !strcmp(box
, "INBOX") ? "" : ctx
->prefix
;
1240 ret
= imap_exec_m(ctx
, &cb
, "APPEND \"%s%s\" ", prefix
, box
);
1241 imap
->caps
= imap
->rcaps
;
1248 static void wrap_in_html(struct strbuf
*msg
)
1250 struct strbuf buf
= STRBUF_INIT
;
1251 static char *content_type
= "Content-Type: text/html;\n";
1252 static char *pre_open
= "<pre>\n";
1253 static char *pre_close
= "</pre>\n";
1254 const char *body
= strstr(msg
->buf
, "\n\n");
1257 return; /* Headers but no body; no wrapping needed */
1261 strbuf_add(&buf
, msg
->buf
, body
- msg
->buf
- 1);
1262 strbuf_addstr(&buf
, content_type
);
1263 strbuf_addch(&buf
, '\n');
1264 strbuf_addstr(&buf
, pre_open
);
1265 strbuf_addstr_xml_quoted(&buf
, body
);
1266 strbuf_addstr(&buf
, pre_close
);
1268 strbuf_release(msg
);
1272 static int count_messages(struct strbuf
*all_msgs
)
1275 char *p
= all_msgs
->buf
;
1278 if (starts_with(p
, "From ")) {
1279 p
= strstr(p
+5, "\nFrom: ");
1281 p
= strstr(p
+7, "\nDate: ");
1283 p
= strstr(p
+7, "\nSubject: ");
1288 p
= strstr(p
+5, "\nFrom ");
1297 * Copy the next message from all_msgs, starting at offset *ofs, to
1298 * msg. Update *ofs to the start of the following message. Return
1299 * true iff a message was successfully copied.
1301 static int split_msg(struct strbuf
*all_msgs
, struct strbuf
*msg
, int *ofs
)
1306 if (*ofs
>= all_msgs
->len
)
1309 data
= &all_msgs
->buf
[*ofs
];
1310 len
= all_msgs
->len
- *ofs
;
1312 if (len
< 5 || !starts_with(data
, "From "))
1315 p
= strchr(data
, '\n');
1323 p
= strstr(data
, "\nFrom ");
1327 strbuf_add(msg
, data
, len
);
1332 static int git_imap_config(const char *var
, const char *val
, void *cb
)
1335 if (!strcmp("imap.sslverify", var
))
1336 server
.ssl_verify
= git_config_bool(var
, val
);
1337 else if (!strcmp("imap.preformattedhtml", var
))
1338 server
.use_html
= git_config_bool(var
, val
);
1339 else if (!strcmp("imap.folder", var
))
1340 return git_config_string(&server
.folder
, var
, val
);
1341 else if (!strcmp("imap.user", var
))
1342 return git_config_string(&server
.user
, var
, val
);
1343 else if (!strcmp("imap.pass", var
))
1344 return git_config_string(&server
.pass
, var
, val
);
1345 else if (!strcmp("imap.tunnel", var
))
1346 return git_config_string(&server
.tunnel
, var
, val
);
1347 else if (!strcmp("imap.authmethod", var
))
1348 return git_config_string(&server
.auth_method
, var
, val
);
1349 else if (!strcmp("imap.port", var
))
1350 server
.port
= git_config_int(var
, val
);
1351 else if (!strcmp("imap.host", var
)) {
1353 git_die_config("imap.host", "Missing value for 'imap.host'");
1355 if (starts_with(val
, "imap:"))
1357 else if (starts_with(val
, "imaps:")) {
1361 if (starts_with(val
, "//"))
1363 server
.host
= xstrdup(val
);
1366 return git_default_config(var
, val
, cb
);
1371 static int append_msgs_to_imap(struct imap_server_conf
*server
,
1372 struct strbuf
* all_msgs
, int total
)
1374 struct strbuf msg
= STRBUF_INIT
;
1375 struct imap_store
*ctx
= NULL
;
1380 ctx
= imap_open_store(server
, server
->folder
);
1382 fprintf(stderr
, "failed to open store\n");
1385 ctx
->name
= server
->folder
;
1387 fprintf(stderr
, "sending %d message%s\n", total
, (total
!= 1) ? "s" : "");
1389 unsigned percent
= n
* 100 / total
;
1391 fprintf(stderr
, "%4u%% (%d/%d) done\r", percent
, n
, total
);
1393 if (!split_msg(all_msgs
, &msg
, &ofs
))
1395 if (server
->use_html
)
1397 r
= imap_store_msg(ctx
, &msg
);
1402 fprintf(stderr
, "\n");
1404 imap_close_store(ctx
);
1409 #ifdef USE_CURL_FOR_IMAP_SEND
1410 static CURL
*setup_curl(struct imap_server_conf
*srvc
, struct credential
*cred
)
1413 struct strbuf path
= STRBUF_INIT
;
1414 char *uri_encoded_folder
;
1416 if (curl_global_init(CURL_GLOBAL_ALL
) != CURLE_OK
)
1417 die("curl_global_init failed");
1419 curl
= curl_easy_init();
1422 die("curl_easy_init failed");
1424 server_fill_credential(&server
, cred
);
1425 curl_easy_setopt(curl
, CURLOPT_USERNAME
, server
.user
);
1426 curl_easy_setopt(curl
, CURLOPT_PASSWORD
, server
.pass
);
1428 strbuf_addstr(&path
, server
.use_ssl
? "imaps://" : "imap://");
1429 strbuf_addstr(&path
, server
.host
);
1430 if (!path
.len
|| path
.buf
[path
.len
- 1] != '/')
1431 strbuf_addch(&path
, '/');
1433 uri_encoded_folder
= curl_easy_escape(curl
, server
.folder
, 0);
1434 if (!uri_encoded_folder
)
1435 die("failed to encode server folder");
1436 strbuf_addstr(&path
, uri_encoded_folder
);
1437 curl_free(uri_encoded_folder
);
1439 curl_easy_setopt(curl
, CURLOPT_URL
, path
.buf
);
1440 strbuf_release(&path
);
1441 curl_easy_setopt(curl
, CURLOPT_PORT
, server
.port
);
1443 if (server
.auth_method
) {
1444 #if LIBCURL_VERSION_NUM < 0x072200
1445 warning("No LOGIN_OPTIONS support in this cURL version");
1447 struct strbuf auth
= STRBUF_INIT
;
1448 strbuf_addstr(&auth
, "AUTH=");
1449 strbuf_addstr(&auth
, server
.auth_method
);
1450 curl_easy_setopt(curl
, CURLOPT_LOGIN_OPTIONS
, auth
.buf
);
1451 strbuf_release(&auth
);
1455 if (!server
.use_ssl
)
1456 curl_easy_setopt(curl
, CURLOPT_USE_SSL
, (long)CURLUSESSL_TRY
);
1458 curl_easy_setopt(curl
, CURLOPT_SSL_VERIFYPEER
, server
.ssl_verify
);
1459 curl_easy_setopt(curl
, CURLOPT_SSL_VERIFYHOST
, server
.ssl_verify
);
1461 curl_easy_setopt(curl
, CURLOPT_READFUNCTION
, fread_buffer
);
1463 curl_easy_setopt(curl
, CURLOPT_UPLOAD
, 1L);
1465 if (0 < verbosity
|| getenv("GIT_CURL_VERBOSE"))
1466 http_trace_curl_no_data();
1467 setup_curl_trace(curl
);
1472 static int curl_append_msgs_to_imap(struct imap_server_conf
*server
,
1473 struct strbuf
* all_msgs
, int total
)
1477 struct buffer msgbuf
= { STRBUF_INIT
, 0 };
1479 CURLcode res
= CURLE_OK
;
1480 struct credential cred
= CREDENTIAL_INIT
;
1482 curl
= setup_curl(server
, &cred
);
1483 curl_easy_setopt(curl
, CURLOPT_READDATA
, &msgbuf
);
1485 fprintf(stderr
, "sending %d message%s\n", total
, (total
!= 1) ? "s" : "");
1487 unsigned percent
= n
* 100 / total
;
1490 fprintf(stderr
, "%4u%% (%d/%d) done\r", percent
, n
, total
);
1492 prev_len
= msgbuf
.buf
.len
;
1493 if (!split_msg(all_msgs
, &msgbuf
.buf
, &ofs
))
1495 if (server
->use_html
)
1496 wrap_in_html(&msgbuf
.buf
);
1497 lf_to_crlf(&msgbuf
.buf
);
1499 curl_easy_setopt(curl
, CURLOPT_INFILESIZE_LARGE
,
1500 (curl_off_t
)(msgbuf
.buf
.len
-prev_len
));
1502 res
= curl_easy_perform(curl
);
1504 if(res
!= CURLE_OK
) {
1505 fprintf(stderr
, "curl_easy_perform() failed: %s\n",
1506 curl_easy_strerror(res
));
1512 fprintf(stderr
, "\n");
1514 curl_easy_cleanup(curl
);
1515 curl_global_cleanup();
1517 if (cred
.username
) {
1518 if (res
== CURLE_OK
)
1519 credential_approve(&cred
);
1520 #if LIBCURL_VERSION_NUM >= 0x070d01
1521 else if (res
== CURLE_LOGIN_DENIED
)
1525 credential_reject(&cred
);
1528 credential_clear(&cred
);
1530 return res
!= CURLE_OK
;
1534 int cmd_main(int argc
, const char **argv
)
1536 struct strbuf all_msgs
= STRBUF_INIT
;
1540 setup_git_directory_gently(&nongit_ok
);
1541 git_config(git_imap_config
, NULL
);
1543 argc
= parse_options(argc
, (const char **)argv
, "", imap_send_options
, imap_send_usage
, 0);
1546 usage_with_options(imap_send_usage
, imap_send_options
);
1548 #ifndef USE_CURL_FOR_IMAP_SEND
1550 warning("--curl not supported in this build");
1553 #elif defined(NO_OPENSSL)
1555 warning("--no-curl not supported in this build");
1561 server
.port
= server
.use_ssl
? 993 : 143;
1563 if (!server
.folder
) {
1564 fprintf(stderr
, "no imap store specified\n");
1568 if (!server
.tunnel
) {
1569 fprintf(stderr
, "no imap host specified\n");
1572 server
.host
= "tunnel";
1575 /* read the messages */
1576 if (strbuf_read(&all_msgs
, 0, 0) < 0) {
1577 error_errno(_("could not read from stdin"));
1581 if (all_msgs
.len
== 0) {
1582 fprintf(stderr
, "nothing to send\n");
1586 total
= count_messages(&all_msgs
);
1588 fprintf(stderr
, "no messages to send\n");
1592 /* write it to the imap server */
1595 return append_msgs_to_imap(&server
, &all_msgs
, total
);
1597 #ifdef USE_CURL_FOR_IMAP_SEND
1599 return curl_append_msgs_to_imap(&server
, &all_msgs
, total
);
1602 return append_msgs_to_imap(&server
, &all_msgs
, total
);