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;
44 /* For message->status */
45 #define M_RECENT (1<<0) /* unsyncable flag; maildir_* depend on this being 1<<0 */
46 #define M_DEAD (1<<1) /* expunged */
47 #define M_FLAGS (1<<2) /* flags fetched */
51 size_t size; /* zero implies "not fetched" */
53 unsigned char flags, status;
57 struct store_conf *conf; /* foreign */
59 /* currently open mailbox */
60 const char *name; /* foreign! maybe preset? */
62 struct message *msgs; /* own */
64 unsigned char opts; /* maybe preset? */
65 /* note that the following do _not_ reflect stats from msgs, but mailbox totals */
66 int count; /* # of messages */
67 int recent; /* # of recent messages - don't trust this beyond the initial read */
76 static const char imap_send_usage[] = "git imap-send < <mbox>";
80 #define DRV_MSG_BAD -1
81 #define DRV_BOX_BAD -2
82 #define DRV_STORE_BAD -3
84 static int Verbose, Quiet;
86 __attribute__((format (printf, 1, 2)))
87 static void imap_info(const char *, ...);
88 __attribute__((format (printf, 1, 2)))
89 static void imap_warn(const char *, ...);
91 static char *next_arg(char **);
93 static void free_generic_messages(struct message *);
95 __attribute__((format (printf, 3, 4)))
96 static int nfsnprintf(char *buf, int blen, const char *fmt, ...);
98 static int nfvasprintf(char **strp, const char *fmt, va_list ap)
103 len = vsnprintf(tmp, sizeof(tmp), fmt, ap);
105 die("Fatal: Out of memory");
106 if (len >= sizeof(tmp))
107 die("imap command overflow!");
108 *strp = xmemdupz(tmp, len);
112 struct imap_server_conf {
125 static struct imap_server_conf server = {
135 NULL, /* auth_method */
138 struct imap_store_conf {
139 struct store_conf gen;
140 struct imap_server_conf *server;
141 unsigned use_namespace:1;
144 #define NIL (void *)0x1
145 #define LIST (void *)0x2
148 struct imap_list *next, *child;
159 struct imap_socket sock;
168 int uidnext; /* from SELECT responses */
169 struct imap_list *ns_personal, *ns_other, *ns_shared; /* NAMESPACE info */
170 unsigned caps, rcaps; /* CAPABILITY results */
172 int nexttag, num_in_progress, literal_pending;
173 struct imap_cmd *in_progress, **in_progress_append;
174 struct imap_buffer buf; /* this is BIG, so put it last */
182 unsigned /*currentnc:1,*/ trashnc:1;
186 int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt);
187 void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response);
192 unsigned create:1, trycreate:1;
196 struct imap_cmd *next;
197 struct imap_cmd_cb cb;
202 #define CAP(cap) (imap->caps & (1 << (cap)))
213 static const char *cap_list[] = {
226 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd);
229 static const char *Flags[] = {
238 static void ssl_socket_perror(const char *func)
240 fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL));
244 static void socket_perror(const char *func, struct imap_socket *sock, int ret)
248 int sslerr = SSL_get_error(sock->ssl, ret);
252 case SSL_ERROR_SYSCALL:
253 perror("SSL_connect");
256 ssl_socket_perror("SSL_connect");
265 fprintf(stderr, "%s: unexpected EOF\n", func);
270 static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify)
272 fprintf(stderr, "SSL requested but SSL support not compiled in\n");
278 static int host_matches(const char *host, const char *pattern)
280 if (pattern[0] == '*' && pattern[1] == '.') {
282 if (!(host = strchr(host, '.')))
287 return *host && *pattern && !strcasecmp(host, pattern);
290 static int verify_hostname(X509 *cert, const char *hostname)
296 /* try the common name */
297 if (!(subj = X509_get_subject_name(cert)))
298 return error("cannot get certificate subject");
299 if ((len = X509_NAME_get_text_by_NID(subj, NID_commonName, cname, sizeof(cname))) < 0)
300 return error("cannot get certificate common name");
301 if (strlen(cname) == (size_t)len && host_matches(hostname, cname))
303 return error("certificate owner '%s' does not match hostname '%s'",
307 static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify)
309 #if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
310 const SSL_METHOD *meth;
319 SSL_load_error_strings();
322 meth = TLSv1_method();
324 meth = SSLv23_method();
327 ssl_socket_perror("SSLv23_method");
331 ctx = SSL_CTX_new(meth);
334 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
336 if (!SSL_CTX_set_default_verify_paths(ctx)) {
337 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
340 sock->ssl = SSL_new(ctx);
342 ssl_socket_perror("SSL_new");
345 if (!SSL_set_rfd(sock->ssl, sock->fd[0])) {
346 ssl_socket_perror("SSL_set_rfd");
349 if (!SSL_set_wfd(sock->ssl, sock->fd[1])) {
350 ssl_socket_perror("SSL_set_wfd");
354 ret = SSL_connect(sock->ssl);
356 socket_perror("SSL_connect", sock, ret);
361 /* make sure the hostname matches that of the certificate */
362 cert = SSL_get_peer_certificate(sock->ssl);
364 return error("unable to get peer certificate.");
365 if (verify_hostname(cert, server.host) < 0)
373 static int socket_read(struct imap_socket *sock, char *buf, int len)
378 n = SSL_read(sock->ssl, buf, len);
381 n = xread(sock->fd[0], buf, len);
383 socket_perror("read", sock, n);
386 sock->fd[0] = sock->fd[1] = -1;
391 static int socket_write(struct imap_socket *sock, const char *buf, int len)
396 n = SSL_write(sock->ssl, buf, len);
399 n = write_in_full(sock->fd[1], buf, len);
401 socket_perror("write", sock, n);
404 sock->fd[0] = sock->fd[1] = -1;
409 static void socket_shutdown(struct imap_socket *sock)
413 SSL_shutdown(sock->ssl);
421 /* simple line buffering */
422 static int buffer_gets(struct imap_buffer *b, char **s)
425 int start = b->offset;
430 /* make sure we have enough data to read the \r\n sequence */
431 if (b->offset + 1 >= b->bytes) {
433 /* shift down used bytes */
436 assert(start <= b->bytes);
437 n = b->bytes - start;
440 memmove(b->buf, b->buf + start, n);
446 n = socket_read(&b->sock, b->buf + b->bytes,
447 sizeof(b->buf) - b->bytes);
455 if (b->buf[b->offset] == '\r') {
456 assert(b->offset + 1 < b->bytes);
457 if (b->buf[b->offset + 1] == '\n') {
458 b->buf[b->offset] = 0; /* terminate the string */
459 b->offset += 2; /* next line */
471 static void imap_info(const char *msg, ...)
483 static void imap_warn(const char *msg, ...)
489 vfprintf(stderr, msg, va);
494 static char *next_arg(char **s)
500 while (isspace((unsigned char) **s))
509 *s = strchr(*s, '"');
512 while (**s && !isspace((unsigned char) **s))
524 static void free_generic_messages(struct message *msgs)
526 struct message *tmsg;
528 for (; msgs; msgs = tmsg) {
534 static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
540 if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
541 die("Fatal: buffer too small. Please report a bug.");
546 static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
547 struct imap_cmd_cb *cb,
548 const char *fmt, va_list ap)
550 struct imap *imap = ctx->imap;
551 struct imap_cmd *cmd;
555 cmd = xmalloc(sizeof(struct imap_cmd));
556 nfvasprintf(&cmd->cmd, fmt, ap);
557 cmd->tag = ++imap->nexttag;
562 memset(&cmd->cb, 0, sizeof(cmd->cb));
564 while (imap->literal_pending)
565 get_cmd_result(ctx, NULL);
568 bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd);
570 bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n",
571 cmd->tag, cmd->cmd, cmd->cb.dlen,
572 CAP(LITERALPLUS) ? "+" : "");
575 if (imap->num_in_progress)
576 printf("(%d in progress) ", imap->num_in_progress);
577 if (memcmp(cmd->cmd, "LOGIN", 5))
578 printf(">>> %s", buf);
580 printf(">>> %d LOGIN <user> <pass>\n", cmd->tag);
582 if (socket_write(&imap->buf.sock, buf, bufl) != bufl) {
590 if (CAP(LITERALPLUS)) {
591 n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen);
593 if (n != cmd->cb.dlen ||
594 socket_write(&imap->buf.sock, "\r\n", 2) != 2) {
601 imap->literal_pending = 1;
602 } else if (cmd->cb.cont)
603 imap->literal_pending = 1;
605 *imap->in_progress_append = cmd;
606 imap->in_progress_append = &cmd->next;
607 imap->num_in_progress++;
611 __attribute__((format (printf, 3, 4)))
612 static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx,
613 struct imap_cmd_cb *cb,
614 const char *fmt, ...)
616 struct imap_cmd *ret;
620 ret = v_issue_imap_cmd(ctx, cb, fmt, ap);
625 __attribute__((format (printf, 3, 4)))
626 static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb,
627 const char *fmt, ...)
630 struct imap_cmd *cmdp;
633 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
638 return get_cmd_result(ctx, cmdp);
641 __attribute__((format (printf, 3, 4)))
642 static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb,
643 const char *fmt, ...)
646 struct imap_cmd *cmdp;
649 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
652 return DRV_STORE_BAD;
654 switch (get_cmd_result(ctx, cmdp)) {
655 case RESP_BAD: return DRV_STORE_BAD;
656 case RESP_NO: return DRV_MSG_BAD;
657 default: return DRV_OK;
661 static int is_atom(struct imap_list *list)
663 return list && list->val && list->val != NIL && list->val != LIST;
666 static int is_list(struct imap_list *list)
668 return list && list->val == LIST;
671 static void free_list(struct imap_list *list)
673 struct imap_list *tmp;
675 for (; list; list = tmp) {
678 free_list(list->child);
679 else if (is_atom(list))
685 static int parse_imap_list_l(struct imap *imap, char **sp, struct imap_list **curp, int level)
687 struct imap_list *cur;
692 while (isspace((unsigned char)*s))
694 if (level && *s == ')') {
698 *curp = cur = xmalloc(sizeof(*cur));
700 cur->val = NULL; /* for clean bail */
705 if (parse_imap_list_l(imap, &s, &cur->child, level + 1))
707 } else if (imap && *s == '{') {
709 bytes = cur->len = strtol(s + 1, &s, 10);
713 s = cur->val = xmalloc(cur->len);
715 /* dump whats left over in the input buffer */
716 n = imap->buf.bytes - imap->buf.offset;
719 /* the entire message fit in the buffer */
722 memcpy(s, imap->buf.buf + imap->buf.offset, n);
726 /* mark that we used part of the buffer */
727 imap->buf.offset += n;
729 /* now read the rest of the message */
731 if ((n = socket_read(&imap->buf.sock, s, bytes)) <= 0)
737 if (buffer_gets(&imap->buf, &s))
739 } else if (*s == '"') {
743 for (; *s != '"'; s++)
748 cur->val = xmemdupz(p, cur->len);
752 for (; *s && !isspace((unsigned char)*s); s++)
753 if (level && *s == ')')
756 if (cur->len == 3 && !memcmp("NIL", p, 3))
759 cur->val = xmemdupz(p, cur->len);
776 static struct imap_list *parse_imap_list(struct imap *imap, char **sp)
778 struct imap_list *head;
780 if (!parse_imap_list_l(imap, sp, &head, 0))
786 static struct imap_list *parse_list(char **sp)
788 return parse_imap_list(NULL, sp);
791 static void parse_capability(struct imap *imap, char *cmd)
796 imap->caps = 0x80000000;
797 while ((arg = next_arg(&cmd)))
798 for (i = 0; i < ARRAY_SIZE(cap_list); i++)
799 if (!strcmp(cap_list[i], arg))
800 imap->caps |= 1 << i;
801 imap->rcaps = imap->caps;
804 static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
807 struct imap *imap = ctx->imap;
811 return RESP_OK; /* no response code */
813 if (!(p = strchr(s, ']'))) {
814 fprintf(stderr, "IMAP error: malformed response code\n");
819 if (!strcmp("UIDVALIDITY", arg)) {
820 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg))) {
821 fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n");
824 } else if (!strcmp("UIDNEXT", arg)) {
825 if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) {
826 fprintf(stderr, "IMAP error: malformed NEXTUID status\n");
829 } else if (!strcmp("CAPABILITY", arg)) {
830 parse_capability(imap, s);
831 } else if (!strcmp("ALERT", arg)) {
832 /* RFC2060 says that these messages MUST be displayed
835 for (; isspace((unsigned char)*p); p++);
836 fprintf(stderr, "*** IMAP ALERT *** %s\n", p);
837 } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) {
838 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg)) ||
839 !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) {
840 fprintf(stderr, "IMAP error: malformed APPENDUID status\n");
847 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
849 struct imap *imap = ctx->imap;
850 struct imap_cmd *cmdp, **pcmdp, *ncmdp;
851 char *cmd, *arg, *arg1, *p;
852 int n, resp, resp2, tag;
855 if (buffer_gets(&imap->buf, &cmd))
858 arg = next_arg(&cmd);
860 arg = next_arg(&cmd);
862 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
866 if (!strcmp("NAMESPACE", arg)) {
867 imap->ns_personal = parse_list(&cmd);
868 imap->ns_other = parse_list(&cmd);
869 imap->ns_shared = parse_list(&cmd);
870 } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) ||
871 !strcmp("NO", arg) || !strcmp("BYE", arg)) {
872 if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK)
874 } else if (!strcmp("CAPABILITY", arg))
875 parse_capability(imap, cmd);
876 else if ((arg1 = next_arg(&cmd))) {
877 if (!strcmp("EXISTS", arg1))
878 ctx->gen.count = atoi(arg);
879 else if (!strcmp("RECENT", arg1))
880 ctx->gen.recent = atoi(arg);
882 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
885 } else if (!imap->in_progress) {
886 fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : "");
888 } else if (*arg == '+') {
889 /* This can happen only with the last command underway, as
890 it enforces a round-trip. */
891 cmdp = (struct imap_cmd *)((char *)imap->in_progress_append -
892 offsetof(struct imap_cmd, next));
894 n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen);
896 cmdp->cb.data = NULL;
897 if (n != (int)cmdp->cb.dlen)
899 } else if (cmdp->cb.cont) {
900 if (cmdp->cb.cont(ctx, cmdp, cmd))
903 fprintf(stderr, "IMAP error: unexpected command continuation request\n");
906 if (socket_write(&imap->buf.sock, "\r\n", 2) != 2)
909 imap->literal_pending = 0;
914 for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next)
915 if (cmdp->tag == tag)
917 fprintf(stderr, "IMAP error: unexpected tag %s\n", arg);
920 if (!(*pcmdp = cmdp->next))
921 imap->in_progress_append = pcmdp;
922 imap->num_in_progress--;
923 if (cmdp->cb.cont || cmdp->cb.data)
924 imap->literal_pending = 0;
925 arg = next_arg(&cmd);
926 if (!strcmp("OK", arg))
929 if (!strcmp("NO", arg)) {
930 if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */
931 p = strchr(cmdp->cmd, '"');
932 if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", (int)(strchr(p + 1, '"') - p + 1), p)) {
936 /* not waiting here violates the spec, but a server that does not
937 grok this nonetheless violates it too. */
939 if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) {
946 return 0; /* ignored */
952 } else /*if (!strcmp("BAD", arg))*/
954 fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n",
955 memcmp(cmdp->cmd, "LOGIN", 5) ?
956 cmdp->cmd : "LOGIN <user> <pass>",
957 arg, cmd ? cmd : "");
959 if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp)
963 cmdp->cb.done(ctx, cmdp, resp);
967 if (!tcmd || tcmd == cmdp)
974 static void imap_close_server(struct imap_store *ictx)
976 struct imap *imap = ictx->imap;
978 if (imap->buf.sock.fd[0] != -1) {
979 imap_exec(ictx, NULL, "LOGOUT");
980 socket_shutdown(&imap->buf.sock);
982 free_list(imap->ns_personal);
983 free_list(imap->ns_other);
984 free_list(imap->ns_shared);
988 static void imap_close_store(struct store *ctx)
990 imap_close_server((struct imap_store *)ctx);
991 free_generic_messages(ctx->msgs);
998 * hexchar() and cram() functions are based on the code from the isync
999 * project (http://isync.sf.net/).
1001 static char hexchar(unsigned int b)
1003 return b < 10 ? '0' + b : 'a' + (b - 10);
1006 #define ENCODED_SIZE(n) (4*((n+2)/3))
1007 static char *cram(const char *challenge_64, const char *user, const char *pass)
1009 int i, resp_len, encoded_len, decoded_len;
1011 unsigned char hash[16];
1013 char *response, *response_64, *challenge;
1016 * length of challenge_64 (i.e. base-64 encoded string) is a good
1017 * enough upper bound for challenge (decoded result).
1019 encoded_len = strlen(challenge_64);
1020 challenge = xmalloc(encoded_len);
1021 decoded_len = EVP_DecodeBlock((unsigned char *)challenge,
1022 (unsigned char *)challenge_64, encoded_len);
1023 if (decoded_len < 0)
1024 die("invalid challenge %s", challenge_64);
1025 HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5());
1026 HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len);
1027 HMAC_Final(&hmac, hash, NULL);
1028 HMAC_CTX_cleanup(&hmac);
1031 for (i = 0; i < 16; i++) {
1032 hex[2 * i] = hexchar((hash[i] >> 4) & 0xf);
1033 hex[2 * i + 1] = hexchar(hash[i] & 0xf);
1036 /* response: "<user> <digest in hex>" */
1037 resp_len = strlen(user) + 1 + strlen(hex) + 1;
1038 response = xmalloc(resp_len);
1039 sprintf(response, "%s %s", user, hex);
1041 response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1);
1042 encoded_len = EVP_EncodeBlock((unsigned char *)response_64,
1043 (unsigned char *)response, resp_len);
1044 if (encoded_len < 0)
1045 die("EVP_EncodeBlock error");
1046 response_64[encoded_len] = '\0';
1047 return (char *)response_64;
1052 static char *cram(const char *challenge_64, const char *user, const char *pass)
1054 die("If you want to use CRAM-MD5 authenticate method, "
1055 "you have to build git-imap-send with OpenSSL library.");
1060 static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt)
1065 response = cram(prompt, server.user, server.pass);
1067 ret = socket_write(&ctx->imap->buf.sock, response, strlen(response));
1068 if (ret != strlen(response))
1069 return error("IMAP error: sending response failed\n");
1076 static struct store *imap_open_store(struct imap_server_conf *srvc)
1078 struct imap_store *ctx;
1081 int s = -1, preauth;
1083 ctx = xcalloc(sizeof(*ctx), 1);
1085 ctx->imap = imap = xcalloc(sizeof(*imap), 1);
1086 imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1;
1087 imap->in_progress_append = &imap->in_progress;
1089 /* open connection to IMAP server */
1092 const char *argv[] = { srvc->tunnel, NULL };
1093 struct child_process tunnel = {NULL};
1095 imap_info("Starting tunnel '%s'... ", srvc->tunnel);
1098 tunnel.use_shell = 1;
1101 if (start_command(&tunnel))
1102 die("cannot start proxy %s", argv[0]);
1104 imap->buf.sock.fd[0] = tunnel.out;
1105 imap->buf.sock.fd[1] = tunnel.in;
1110 struct addrinfo hints, *ai0, *ai;
1114 snprintf(portstr, sizeof(portstr), "%d", srvc->port);
1116 memset(&hints, 0, sizeof(hints));
1117 hints.ai_socktype = SOCK_STREAM;
1118 hints.ai_protocol = IPPROTO_TCP;
1120 imap_info("Resolving %s... ", srvc->host);
1121 gai = getaddrinfo(srvc->host, portstr, &hints, &ai);
1123 fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai));
1128 for (ai0 = ai; ai; ai = ai->ai_next) {
1129 char addr[NI_MAXHOST];
1131 s = socket(ai->ai_family, ai->ai_socktype,
1136 getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1137 sizeof(addr), NULL, 0, NI_NUMERICHOST);
1138 imap_info("Connecting to [%s]:%s... ", addr, portstr);
1140 if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
1152 struct sockaddr_in addr;
1154 memset(&addr, 0, sizeof(addr));
1155 addr.sin_port = htons(srvc->port);
1156 addr.sin_family = AF_INET;
1158 imap_info("Resolving %s... ", srvc->host);
1159 he = gethostbyname(srvc->host);
1161 perror("gethostbyname");
1166 addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]);
1168 s = socket(PF_INET, SOCK_STREAM, 0);
1170 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
1171 if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) {
1178 fputs("Error: unable to connect to server.\n", stderr);
1182 imap->buf.sock.fd[0] = s;
1183 imap->buf.sock.fd[1] = dup(s);
1185 if (srvc->use_ssl &&
1186 ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) {
1193 /* read the greeting string */
1194 if (buffer_gets(&imap->buf, &rsp)) {
1195 fprintf(stderr, "IMAP error: no greeting response\n");
1198 arg = next_arg(&rsp);
1199 if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) {
1200 fprintf(stderr, "IMAP error: invalid greeting response\n");
1204 if (!strcmp("PREAUTH", arg))
1206 else if (strcmp("OK", arg) != 0) {
1207 fprintf(stderr, "IMAP error: unknown greeting response\n");
1210 parse_response_code(ctx, NULL, rsp);
1211 if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1216 if (!srvc->use_ssl && CAP(STARTTLS)) {
1217 if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK)
1219 if (ssl_socket_connect(&imap->buf.sock, 1,
1222 /* capabilities may have changed, so get the new capabilities */
1223 if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1227 imap_info("Logging in...\n");
1229 fprintf(stderr, "Skipping server %s, no user\n", srvc->host);
1234 sprintf(prompt, "Password (%s@%s): ", srvc->user, srvc->host);
1235 arg = git_getpass(prompt);
1241 fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host);
1245 * getpass() returns a pointer to a static buffer. make a copy
1246 * for long term storage.
1248 srvc->pass = xstrdup(arg);
1251 fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host);
1255 if (srvc->auth_method) {
1256 struct imap_cmd_cb cb;
1258 if (!strcmp(srvc->auth_method, "CRAM-MD5")) {
1259 if (!CAP(AUTH_CRAM_MD5)) {
1260 fprintf(stderr, "You specified"
1261 "CRAM-MD5 as authentication method, "
1262 "but %s doesn't support it.\n", srvc->host);
1267 memset(&cb, 0, sizeof(cb));
1268 cb.cont = auth_cram_md5;
1269 if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) {
1270 fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n");
1274 fprintf(stderr, "Unknown authentication method:%s\n", srvc->host);
1278 if (!imap->buf.sock.ssl)
1279 imap_warn("*** IMAP Warning *** Password is being "
1280 "sent in the clear\n");
1281 if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) {
1282 fprintf(stderr, "IMAP error: LOGIN failed\n");
1290 return (struct store *)ctx;
1293 imap_close_store(&ctx->gen);
1297 static int imap_make_flags(int flags, char *buf)
1302 for (i = d = 0; i < ARRAY_SIZE(Flags); i++)
1303 if (flags & (1 << i)) {
1306 for (s = Flags[i]; *s; s++)
1314 static void lf_to_crlf(struct msg_data *msg)
1317 int i, j, lfnum = 0;
1319 if (msg->data[0] == '\n')
1321 for (i = 1; i < msg->len; i++) {
1322 if (msg->data[i - 1] != '\r' && msg->data[i] == '\n')
1326 new = xmalloc(msg->len + lfnum);
1327 if (msg->data[0] == '\n') {
1333 new[0] = msg->data[0];
1337 for ( ; i < msg->len; i++) {
1338 if (msg->data[i] != '\n') {
1339 new[j++] = msg->data[i];
1342 if (msg->data[i - 1] != '\r')
1344 /* otherwise it already had CR before */
1352 static int imap_store_msg(struct store *gctx, struct msg_data *data)
1354 struct imap_store *ctx = (struct imap_store *)gctx;
1355 struct imap *imap = ctx->imap;
1356 struct imap_cmd_cb cb;
1357 const char *prefix, *box;
1362 memset(&cb, 0, sizeof(cb));
1364 cb.dlen = data->len;
1365 cb.data = xmalloc(cb.dlen);
1366 memcpy(cb.data, data->data, data->len);
1370 d = imap_make_flags(data->flags, flagstr);
1376 prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix;
1378 ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" %s", prefix, box, flagstr);
1379 imap->caps = imap->rcaps;
1387 static void encode_html_chars(struct strbuf *p)
1390 for (i = 0; i < p->len; i++) {
1391 if (p->buf[i] == '&')
1392 strbuf_splice(p, i, 1, "&", 5);
1393 if (p->buf[i] == '<')
1394 strbuf_splice(p, i, 1, "<", 4);
1395 if (p->buf[i] == '>')
1396 strbuf_splice(p, i, 1, ">", 4);
1397 if (p->buf[i] == '"')
1398 strbuf_splice(p, i, 1, """, 6);
1401 static void wrap_in_html(struct msg_data *msg)
1403 struct strbuf buf = STRBUF_INIT;
1404 struct strbuf **lines;
1406 static char *content_type = "Content-Type: text/html;\n";
1407 static char *pre_open = "<pre>\n";
1408 static char *pre_close = "</pre>\n";
1409 int added_header = 0;
1411 strbuf_attach(&buf, msg->data, msg->len, msg->len);
1412 lines = strbuf_split(&buf, '\n');
1413 strbuf_release(&buf);
1414 for (p = lines; *p; p++) {
1415 if (! added_header) {
1416 if ((*p)->len == 1 && *((*p)->buf) == '\n') {
1417 strbuf_addstr(&buf, content_type);
1418 strbuf_addbuf(&buf, *p);
1419 strbuf_addstr(&buf, pre_open);
1425 encode_html_chars(*p);
1426 strbuf_addbuf(&buf, *p);
1428 strbuf_addstr(&buf, pre_close);
1429 strbuf_list_free(lines);
1431 msg->data = strbuf_detach(&buf, NULL);
1434 #define CHUNKSIZE 0x1000
1436 static int read_message(FILE *f, struct msg_data *msg)
1438 struct strbuf buf = STRBUF_INIT;
1440 memset(msg, 0, sizeof(*msg));
1443 if (strbuf_fread(&buf, CHUNKSIZE, f) <= 0)
1448 msg->data = strbuf_detach(&buf, NULL);
1452 static int count_messages(struct msg_data *msg)
1455 char *p = msg->data;
1458 if (!prefixcmp(p, "From ")) {
1459 p = strstr(p+5, "\nFrom: ");
1461 p = strstr(p+7, "\nDate: ");
1463 p = strstr(p+7, "\nSubject: ");
1468 p = strstr(p+5, "\nFrom ");
1476 static int split_msg(struct msg_data *all_msgs, struct msg_data *msg, int *ofs)
1480 memset(msg, 0, sizeof *msg);
1481 if (*ofs >= all_msgs->len)
1484 data = &all_msgs->data[*ofs];
1485 msg->len = all_msgs->len - *ofs;
1487 if (msg->len < 5 || prefixcmp(data, "From "))
1490 p = strchr(data, '\n');
1498 p = strstr(data, "\nFrom ");
1500 msg->len = &p[1] - data;
1502 msg->data = xmemdupz(data, msg->len);
1507 static char *imap_folder;
1509 static int git_imap_config(const char *key, const char *val, void *cb)
1511 char imap_key[] = "imap.";
1513 if (strncmp(key, imap_key, sizeof imap_key - 1))
1516 key += sizeof imap_key - 1;
1518 /* check booleans first, and barf on others */
1519 if (!strcmp("sslverify", key))
1520 server.ssl_verify = git_config_bool(key, val);
1521 else if (!strcmp("preformattedhtml", key))
1522 server.use_html = git_config_bool(key, val);
1524 return config_error_nonbool(key);
1526 if (!strcmp("folder", key)) {
1527 imap_folder = xstrdup(val);
1528 } else if (!strcmp("host", key)) {
1529 if (!prefixcmp(val, "imap:"))
1531 else if (!prefixcmp(val, "imaps:")) {
1535 if (!prefixcmp(val, "//"))
1537 server.host = xstrdup(val);
1538 } else if (!strcmp("user", key))
1539 server.user = xstrdup(val);
1540 else if (!strcmp("pass", key))
1541 server.pass = xstrdup(val);
1542 else if (!strcmp("port", key))
1543 server.port = git_config_int(key, val);
1544 else if (!strcmp("tunnel", key))
1545 server.tunnel = xstrdup(val);
1546 else if (!strcmp("authmethod", key))
1547 server.auth_method = xstrdup(val);
1552 int main(int argc, char **argv)
1554 struct msg_data all_msgs, msg;
1555 struct store *ctx = NULL;
1561 git_extract_argv0_path(argv[0]);
1564 usage(imap_send_usage);
1566 setup_git_directory_gently(&nongit_ok);
1567 git_config(git_imap_config, NULL);
1570 server.port = server.use_ssl ? 993 : 143;
1573 fprintf(stderr, "no imap store specified\n");
1577 if (!server.tunnel) {
1578 fprintf(stderr, "no imap host specified\n");
1581 server.host = "tunnel";
1584 /* read the messages */
1585 if (!read_message(stdin, &all_msgs)) {
1586 fprintf(stderr, "nothing to send\n");
1590 total = count_messages(&all_msgs);
1592 fprintf(stderr, "no messages to send\n");
1596 /* write it to the imap server */
1597 ctx = imap_open_store(&server);
1599 fprintf(stderr, "failed to open store\n");
1603 fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : "");
1604 ctx->name = imap_folder;
1606 unsigned percent = n * 100 / total;
1607 fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total);
1608 if (!split_msg(&all_msgs, &msg, &ofs))
1610 if (server.use_html)
1612 r = imap_store_msg(ctx, &msg);
1617 fprintf(stderr, "\n");
1619 imap_close_store(ctx);