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"
32 #include <openssl/evp.h>
33 #include <openssl/hmac.h>
37 /* currently open mailbox */
38 const char *name; /* foreign! maybe preset? */
42 static const char imap_send_usage[] = "git imap-send < <mbox>";
46 #define DRV_MSG_BAD -1
47 #define DRV_BOX_BAD -2
48 #define DRV_STORE_BAD -3
50 static int Verbose, Quiet;
52 __attribute__((format (printf, 1, 2)))
53 static void imap_info(const char *, ...);
54 __attribute__((format (printf, 1, 2)))
55 static void imap_warn(const char *, ...);
57 static char *next_arg(char **);
59 __attribute__((format (printf, 3, 4)))
60 static int nfsnprintf(char *buf, int blen, const char *fmt, ...);
62 static int nfvasprintf(char **strp, const char *fmt, va_list ap)
67 len = vsnprintf(tmp, sizeof(tmp), fmt, ap);
69 die("Fatal: Out of memory");
70 if (len >= sizeof(tmp))
71 die("imap command overflow!");
72 *strp = xmemdupz(tmp, len);
76 struct imap_server_conf {
89 static struct imap_server_conf server = {
99 NULL, /* auth_method */
102 #define NIL (void *)0x1
103 #define LIST (void *)0x2
106 struct imap_list *next, *child;
117 struct imap_socket sock;
126 int uidnext; /* from SELECT responses */
127 struct imap_list *ns_personal, *ns_other, *ns_shared; /* NAMESPACE info */
128 unsigned caps, rcaps; /* CAPABILITY results */
130 int nexttag, num_in_progress, literal_pending;
131 struct imap_cmd *in_progress, **in_progress_append;
132 struct imap_buffer buf; /* this is BIG, so put it last */
140 unsigned /*currentnc:1,*/ trashnc:1;
144 int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt);
145 void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response);
150 unsigned create:1, trycreate:1;
154 struct imap_cmd *next;
155 struct imap_cmd_cb cb;
160 #define CAP(cap) (imap->caps & (1 << (cap)))
171 static const char *cap_list[] = {
184 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd);
188 static void ssl_socket_perror(const char *func)
190 fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL));
194 static void socket_perror(const char *func, struct imap_socket *sock, int ret)
198 int sslerr = SSL_get_error(sock->ssl, ret);
202 case SSL_ERROR_SYSCALL:
203 perror("SSL_connect");
206 ssl_socket_perror("SSL_connect");
215 fprintf(stderr, "%s: unexpected EOF\n", func);
219 static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify)
222 fprintf(stderr, "SSL requested but SSL support not compiled in\n");
225 #if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
226 const SSL_METHOD *meth;
234 SSL_load_error_strings();
237 meth = TLSv1_method();
239 meth = SSLv23_method();
242 ssl_socket_perror("SSLv23_method");
246 ctx = SSL_CTX_new(meth);
249 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
251 if (!SSL_CTX_set_default_verify_paths(ctx)) {
252 ssl_socket_perror("SSL_CTX_set_default_verify_paths");
255 sock->ssl = SSL_new(ctx);
257 ssl_socket_perror("SSL_new");
260 if (!SSL_set_rfd(sock->ssl, sock->fd[0])) {
261 ssl_socket_perror("SSL_set_rfd");
264 if (!SSL_set_wfd(sock->ssl, sock->fd[1])) {
265 ssl_socket_perror("SSL_set_wfd");
269 ret = SSL_connect(sock->ssl);
271 socket_perror("SSL_connect", sock, ret);
279 static int socket_read(struct imap_socket *sock, char *buf, int len)
284 n = SSL_read(sock->ssl, buf, len);
287 n = xread(sock->fd[0], buf, len);
289 socket_perror("read", sock, n);
292 sock->fd[0] = sock->fd[1] = -1;
297 static int socket_write(struct imap_socket *sock, const char *buf, int len)
302 n = SSL_write(sock->ssl, buf, len);
305 n = write_in_full(sock->fd[1], buf, len);
307 socket_perror("write", sock, n);
310 sock->fd[0] = sock->fd[1] = -1;
315 static void socket_shutdown(struct imap_socket *sock)
319 SSL_shutdown(sock->ssl);
327 /* simple line buffering */
328 static int buffer_gets(struct imap_buffer *b, char **s)
331 int start = b->offset;
336 /* make sure we have enough data to read the \r\n sequence */
337 if (b->offset + 1 >= b->bytes) {
339 /* shift down used bytes */
342 assert(start <= b->bytes);
343 n = b->bytes - start;
346 memmove(b->buf, b->buf + start, n);
352 n = socket_read(&b->sock, b->buf + b->bytes,
353 sizeof(b->buf) - b->bytes);
361 if (b->buf[b->offset] == '\r') {
362 assert(b->offset + 1 < b->bytes);
363 if (b->buf[b->offset + 1] == '\n') {
364 b->buf[b->offset] = 0; /* terminate the string */
365 b->offset += 2; /* next line */
377 static void imap_info(const char *msg, ...)
389 static void imap_warn(const char *msg, ...)
395 vfprintf(stderr, msg, va);
400 static char *next_arg(char **s)
406 while (isspace((unsigned char) **s))
415 *s = strchr(*s, '"');
418 while (**s && !isspace((unsigned char) **s))
430 static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
436 if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
437 die("Fatal: buffer too small. Please report a bug.");
442 static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
443 struct imap_cmd_cb *cb,
444 const char *fmt, va_list ap)
446 struct imap *imap = ctx->imap;
447 struct imap_cmd *cmd;
451 cmd = xmalloc(sizeof(struct imap_cmd));
452 nfvasprintf(&cmd->cmd, fmt, ap);
453 cmd->tag = ++imap->nexttag;
458 memset(&cmd->cb, 0, sizeof(cmd->cb));
460 while (imap->literal_pending)
461 get_cmd_result(ctx, NULL);
464 bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd);
466 bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n",
467 cmd->tag, cmd->cmd, cmd->cb.dlen,
468 CAP(LITERALPLUS) ? "+" : "");
471 if (imap->num_in_progress)
472 printf("(%d in progress) ", imap->num_in_progress);
473 if (memcmp(cmd->cmd, "LOGIN", 5))
474 printf(">>> %s", buf);
476 printf(">>> %d LOGIN <user> <pass>\n", cmd->tag);
478 if (socket_write(&imap->buf.sock, buf, bufl) != bufl) {
486 if (CAP(LITERALPLUS)) {
487 n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen);
489 if (n != cmd->cb.dlen ||
490 socket_write(&imap->buf.sock, "\r\n", 2) != 2) {
497 imap->literal_pending = 1;
498 } else if (cmd->cb.cont)
499 imap->literal_pending = 1;
501 *imap->in_progress_append = cmd;
502 imap->in_progress_append = &cmd->next;
503 imap->num_in_progress++;
507 __attribute__((format (printf, 3, 4)))
508 static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx,
509 struct imap_cmd_cb *cb,
510 const char *fmt, ...)
512 struct imap_cmd *ret;
516 ret = v_issue_imap_cmd(ctx, cb, fmt, ap);
521 __attribute__((format (printf, 3, 4)))
522 static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb,
523 const char *fmt, ...)
526 struct imap_cmd *cmdp;
529 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
534 return get_cmd_result(ctx, cmdp);
537 __attribute__((format (printf, 3, 4)))
538 static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb,
539 const char *fmt, ...)
542 struct imap_cmd *cmdp;
545 cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap);
548 return DRV_STORE_BAD;
550 switch (get_cmd_result(ctx, cmdp)) {
551 case RESP_BAD: return DRV_STORE_BAD;
552 case RESP_NO: return DRV_MSG_BAD;
553 default: return DRV_OK;
557 static int is_atom(struct imap_list *list)
559 return list && list->val && list->val != NIL && list->val != LIST;
562 static int is_list(struct imap_list *list)
564 return list && list->val == LIST;
567 static void free_list(struct imap_list *list)
569 struct imap_list *tmp;
571 for (; list; list = tmp) {
574 free_list(list->child);
575 else if (is_atom(list))
581 static int parse_imap_list_l(struct imap *imap, char **sp, struct imap_list **curp, int level)
583 struct imap_list *cur;
588 while (isspace((unsigned char)*s))
590 if (level && *s == ')') {
594 *curp = cur = xmalloc(sizeof(*cur));
596 cur->val = NULL; /* for clean bail */
601 if (parse_imap_list_l(imap, &s, &cur->child, level + 1))
603 } else if (imap && *s == '{') {
605 bytes = cur->len = strtol(s + 1, &s, 10);
609 s = cur->val = xmalloc(cur->len);
611 /* dump whats left over in the input buffer */
612 n = imap->buf.bytes - imap->buf.offset;
615 /* the entire message fit in the buffer */
618 memcpy(s, imap->buf.buf + imap->buf.offset, n);
622 /* mark that we used part of the buffer */
623 imap->buf.offset += n;
625 /* now read the rest of the message */
627 if ((n = socket_read(&imap->buf.sock, s, bytes)) <= 0)
633 if (buffer_gets(&imap->buf, &s))
635 } else if (*s == '"') {
639 for (; *s != '"'; s++)
644 cur->val = xmemdupz(p, cur->len);
648 for (; *s && !isspace((unsigned char)*s); s++)
649 if (level && *s == ')')
652 if (cur->len == 3 && !memcmp("NIL", p, 3))
655 cur->val = xmemdupz(p, cur->len);
672 static struct imap_list *parse_imap_list(struct imap *imap, char **sp)
674 struct imap_list *head;
676 if (!parse_imap_list_l(imap, sp, &head, 0))
682 static struct imap_list *parse_list(char **sp)
684 return parse_imap_list(NULL, sp);
687 static void parse_capability(struct imap *imap, char *cmd)
692 imap->caps = 0x80000000;
693 while ((arg = next_arg(&cmd)))
694 for (i = 0; i < ARRAY_SIZE(cap_list); i++)
695 if (!strcmp(cap_list[i], arg))
696 imap->caps |= 1 << i;
697 imap->rcaps = imap->caps;
700 static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb,
703 struct imap *imap = ctx->imap;
707 return RESP_OK; /* no response code */
709 if (!(p = strchr(s, ']'))) {
710 fprintf(stderr, "IMAP error: malformed response code\n");
715 if (!strcmp("UIDVALIDITY", arg)) {
716 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg))) {
717 fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n");
720 } else if (!strcmp("UIDNEXT", arg)) {
721 if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) {
722 fprintf(stderr, "IMAP error: malformed NEXTUID status\n");
725 } else if (!strcmp("CAPABILITY", arg)) {
726 parse_capability(imap, s);
727 } else if (!strcmp("ALERT", arg)) {
728 /* RFC2060 says that these messages MUST be displayed
731 for (; isspace((unsigned char)*p); p++);
732 fprintf(stderr, "*** IMAP ALERT *** %s\n", p);
733 } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) {
734 if (!(arg = next_arg(&s)) || !(ctx->gen.uidvalidity = atoi(arg)) ||
735 !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) {
736 fprintf(stderr, "IMAP error: malformed APPENDUID status\n");
743 static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
745 struct imap *imap = ctx->imap;
746 struct imap_cmd *cmdp, **pcmdp, *ncmdp;
747 char *cmd, *arg, *arg1, *p;
748 int n, resp, resp2, tag;
751 if (buffer_gets(&imap->buf, &cmd))
754 arg = next_arg(&cmd);
756 arg = next_arg(&cmd);
758 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
762 if (!strcmp("NAMESPACE", arg)) {
763 imap->ns_personal = parse_list(&cmd);
764 imap->ns_other = parse_list(&cmd);
765 imap->ns_shared = parse_list(&cmd);
766 } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) ||
767 !strcmp("NO", arg) || !strcmp("BYE", arg)) {
768 if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK)
770 } else if (!strcmp("CAPABILITY", arg)) {
771 parse_capability(imap, cmd);
772 } else if ((arg1 = next_arg(&cmd))) {
774 * Unhandled response-data with at least two words.
777 * NEEDSWORK: Previously this case handled '<num> EXISTS'
778 * and '<num> RECENT' but as a probably-unintended side
779 * effect it ignores other unrecognized two-word
780 * responses. imap-send doesn't ever try to read
781 * messages or mailboxes these days, so consider
782 * eliminating this case.
785 fprintf(stderr, "IMAP error: unable to parse untagged response\n");
788 } else if (!imap->in_progress) {
789 fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : "");
791 } else if (*arg == '+') {
792 /* This can happen only with the last command underway, as
793 it enforces a round-trip. */
794 cmdp = (struct imap_cmd *)((char *)imap->in_progress_append -
795 offsetof(struct imap_cmd, next));
797 n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen);
799 cmdp->cb.data = NULL;
800 if (n != (int)cmdp->cb.dlen)
802 } else if (cmdp->cb.cont) {
803 if (cmdp->cb.cont(ctx, cmdp, cmd))
806 fprintf(stderr, "IMAP error: unexpected command continuation request\n");
809 if (socket_write(&imap->buf.sock, "\r\n", 2) != 2)
812 imap->literal_pending = 0;
817 for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next)
818 if (cmdp->tag == tag)
820 fprintf(stderr, "IMAP error: unexpected tag %s\n", arg);
823 if (!(*pcmdp = cmdp->next))
824 imap->in_progress_append = pcmdp;
825 imap->num_in_progress--;
826 if (cmdp->cb.cont || cmdp->cb.data)
827 imap->literal_pending = 0;
828 arg = next_arg(&cmd);
829 if (!strcmp("OK", arg))
832 if (!strcmp("NO", arg)) {
833 if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */
834 p = strchr(cmdp->cmd, '"');
835 if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", (int)(strchr(p + 1, '"') - p + 1), p)) {
839 /* not waiting here violates the spec, but a server that does not
840 grok this nonetheless violates it too. */
842 if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) {
849 return 0; /* ignored */
855 } else /*if (!strcmp("BAD", arg))*/
857 fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n",
858 memcmp(cmdp->cmd, "LOGIN", 5) ?
859 cmdp->cmd : "LOGIN <user> <pass>",
860 arg, cmd ? cmd : "");
862 if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp)
866 cmdp->cb.done(ctx, cmdp, resp);
870 if (!tcmd || tcmd == cmdp)
877 static void imap_close_server(struct imap_store *ictx)
879 struct imap *imap = ictx->imap;
881 if (imap->buf.sock.fd[0] != -1) {
882 imap_exec(ictx, NULL, "LOGOUT");
883 socket_shutdown(&imap->buf.sock);
885 free_list(imap->ns_personal);
886 free_list(imap->ns_other);
887 free_list(imap->ns_shared);
891 static void imap_close_store(struct store *ctx)
893 imap_close_server((struct imap_store *)ctx);
900 * hexchar() and cram() functions are based on the code from the isync
901 * project (http://isync.sf.net/).
903 static char hexchar(unsigned int b)
905 return b < 10 ? '0' + b : 'a' + (b - 10);
908 #define ENCODED_SIZE(n) (4*((n+2)/3))
909 static char *cram(const char *challenge_64, const char *user, const char *pass)
911 int i, resp_len, encoded_len, decoded_len;
913 unsigned char hash[16];
915 char *response, *response_64, *challenge;
918 * length of challenge_64 (i.e. base-64 encoded string) is a good
919 * enough upper bound for challenge (decoded result).
921 encoded_len = strlen(challenge_64);
922 challenge = xmalloc(encoded_len);
923 decoded_len = EVP_DecodeBlock((unsigned char *)challenge,
924 (unsigned char *)challenge_64, encoded_len);
926 die("invalid challenge %s", challenge_64);
927 HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5());
928 HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len);
929 HMAC_Final(&hmac, hash, NULL);
930 HMAC_CTX_cleanup(&hmac);
933 for (i = 0; i < 16; i++) {
934 hex[2 * i] = hexchar((hash[i] >> 4) & 0xf);
935 hex[2 * i + 1] = hexchar(hash[i] & 0xf);
938 /* response: "<user> <digest in hex>" */
939 resp_len = strlen(user) + 1 + strlen(hex) + 1;
940 response = xmalloc(resp_len);
941 sprintf(response, "%s %s", user, hex);
943 response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1);
944 encoded_len = EVP_EncodeBlock((unsigned char *)response_64,
945 (unsigned char *)response, resp_len);
947 die("EVP_EncodeBlock error");
948 response_64[encoded_len] = '\0';
949 return (char *)response_64;
954 static char *cram(const char *challenge_64, const char *user, const char *pass)
956 die("If you want to use CRAM-MD5 authenticate method, "
957 "you have to build git-imap-send with OpenSSL library.");
962 static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt)
967 response = cram(prompt, server.user, server.pass);
969 ret = socket_write(&ctx->imap->buf.sock, response, strlen(response));
970 if (ret != strlen(response))
971 return error("IMAP error: sending response failed");
978 static struct store *imap_open_store(struct imap_server_conf *srvc)
980 struct imap_store *ctx;
985 ctx = xcalloc(sizeof(*ctx), 1);
987 ctx->imap = imap = xcalloc(sizeof(*imap), 1);
988 imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1;
989 imap->in_progress_append = &imap->in_progress;
991 /* open connection to IMAP server */
994 const char *argv[] = { srvc->tunnel, NULL };
995 struct child_process tunnel = {NULL};
997 imap_info("Starting tunnel '%s'... ", srvc->tunnel);
1000 tunnel.use_shell = 1;
1003 if (start_command(&tunnel))
1004 die("cannot start proxy %s", argv[0]);
1006 imap->buf.sock.fd[0] = tunnel.out;
1007 imap->buf.sock.fd[1] = tunnel.in;
1012 struct addrinfo hints, *ai0, *ai;
1016 snprintf(portstr, sizeof(portstr), "%d", srvc->port);
1018 memset(&hints, 0, sizeof(hints));
1019 hints.ai_socktype = SOCK_STREAM;
1020 hints.ai_protocol = IPPROTO_TCP;
1022 imap_info("Resolving %s... ", srvc->host);
1023 gai = getaddrinfo(srvc->host, portstr, &hints, &ai);
1025 fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai));
1030 for (ai0 = ai; ai; ai = ai->ai_next) {
1031 char addr[NI_MAXHOST];
1033 s = socket(ai->ai_family, ai->ai_socktype,
1038 getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1039 sizeof(addr), NULL, 0, NI_NUMERICHOST);
1040 imap_info("Connecting to [%s]:%s... ", addr, portstr);
1042 if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
1054 struct sockaddr_in addr;
1056 memset(&addr, 0, sizeof(addr));
1057 addr.sin_port = htons(srvc->port);
1058 addr.sin_family = AF_INET;
1060 imap_info("Resolving %s... ", srvc->host);
1061 he = gethostbyname(srvc->host);
1063 perror("gethostbyname");
1068 addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]);
1070 s = socket(PF_INET, SOCK_STREAM, 0);
1072 imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
1073 if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) {
1080 fputs("Error: unable to connect to server.\n", stderr);
1084 imap->buf.sock.fd[0] = s;
1085 imap->buf.sock.fd[1] = dup(s);
1087 if (srvc->use_ssl &&
1088 ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) {
1095 /* read the greeting string */
1096 if (buffer_gets(&imap->buf, &rsp)) {
1097 fprintf(stderr, "IMAP error: no greeting response\n");
1100 arg = next_arg(&rsp);
1101 if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) {
1102 fprintf(stderr, "IMAP error: invalid greeting response\n");
1106 if (!strcmp("PREAUTH", arg))
1108 else if (strcmp("OK", arg) != 0) {
1109 fprintf(stderr, "IMAP error: unknown greeting response\n");
1112 parse_response_code(ctx, NULL, rsp);
1113 if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1118 if (!srvc->use_ssl && CAP(STARTTLS)) {
1119 if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK)
1121 if (ssl_socket_connect(&imap->buf.sock, 1,
1124 /* capabilities may have changed, so get the new capabilities */
1125 if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK)
1129 imap_info("Logging in...\n");
1131 fprintf(stderr, "Skipping server %s, no user\n", srvc->host);
1135 struct strbuf prompt = STRBUF_INIT;
1136 strbuf_addf(&prompt, "Password (%s@%s): ", srvc->user, srvc->host);
1137 arg = git_getpass(prompt.buf);
1138 strbuf_release(&prompt);
1140 fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host);
1144 * getpass() returns a pointer to a static buffer. make a copy
1145 * for long term storage.
1147 srvc->pass = xstrdup(arg);
1150 fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host);
1154 if (srvc->auth_method) {
1155 struct imap_cmd_cb cb;
1157 if (!strcmp(srvc->auth_method, "CRAM-MD5")) {
1158 if (!CAP(AUTH_CRAM_MD5)) {
1159 fprintf(stderr, "You specified"
1160 "CRAM-MD5 as authentication method, "
1161 "but %s doesn't support it.\n", srvc->host);
1166 memset(&cb, 0, sizeof(cb));
1167 cb.cont = auth_cram_md5;
1168 if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) {
1169 fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n");
1173 fprintf(stderr, "Unknown authentication method:%s\n", srvc->host);
1177 if (!imap->buf.sock.ssl)
1178 imap_warn("*** IMAP Warning *** Password is being "
1179 "sent in the clear\n");
1180 if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) {
1181 fprintf(stderr, "IMAP error: LOGIN failed\n");
1189 return (struct store *)ctx;
1192 imap_close_store(&ctx->gen);
1196 static void lf_to_crlf(struct strbuf *msg)
1200 int i, j, lfnum = 0;
1202 if (msg->buf[0] == '\n')
1204 for (i = 1; i < msg->len; i++) {
1205 if (msg->buf[i - 1] != '\r' && msg->buf[i] == '\n')
1209 new_len = msg->len + lfnum;
1210 new = xmalloc(new_len + 1);
1211 if (msg->buf[0] == '\n') {
1217 new[0] = msg->buf[0];
1221 for ( ; i < msg->len; i++) {
1222 if (msg->buf[i] != '\n') {
1223 new[j++] = msg->buf[i];
1226 if (msg->buf[i - 1] != '\r')
1228 /* otherwise it already had CR before */
1231 strbuf_attach(msg, new, new_len, new_len + 1);
1235 * Store msg to IMAP. Also detach and free the data from msg->data,
1236 * leaving msg->data empty.
1238 static int imap_store_msg(struct store *gctx, struct strbuf *msg)
1240 struct imap_store *ctx = (struct imap_store *)gctx;
1241 struct imap *imap = ctx->imap;
1242 struct imap_cmd_cb cb;
1243 const char *prefix, *box;
1247 memset(&cb, 0, sizeof(cb));
1250 cb.data = strbuf_detach(msg, NULL);
1253 prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix;
1255 ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" ", prefix, box);
1256 imap->caps = imap->rcaps;
1263 static void wrap_in_html(struct strbuf *msg)
1265 struct strbuf buf = STRBUF_INIT;
1266 static char *content_type = "Content-Type: text/html;\n";
1267 static char *pre_open = "<pre>\n";
1268 static char *pre_close = "</pre>\n";
1269 const char *body = strstr(msg->buf, "\n\n");
1272 return; /* Headers but no body; no wrapping needed */
1276 strbuf_add(&buf, msg->buf, body - msg->buf - 1);
1277 strbuf_addstr(&buf, content_type);
1278 strbuf_addch(&buf, '\n');
1279 strbuf_addstr(&buf, pre_open);
1280 strbuf_addstr_xml_quoted(&buf, body);
1281 strbuf_addstr(&buf, pre_close);
1283 strbuf_release(msg);
1287 #define CHUNKSIZE 0x1000
1289 static int read_message(FILE *f, struct strbuf *all_msgs)
1292 if (strbuf_fread(all_msgs, CHUNKSIZE, f) <= 0)
1296 return ferror(f) ? -1 : 0;
1299 static int count_messages(struct strbuf *all_msgs)
1302 char *p = all_msgs->buf;
1305 if (!prefixcmp(p, "From ")) {
1306 p = strstr(p+5, "\nFrom: ");
1308 p = strstr(p+7, "\nDate: ");
1310 p = strstr(p+7, "\nSubject: ");
1315 p = strstr(p+5, "\nFrom ");
1324 * Copy the next message from all_msgs, starting at offset *ofs, to
1325 * msg. Update *ofs to the start of the following message. Return
1326 * true iff a message was successfully copied.
1328 static int split_msg(struct strbuf *all_msgs, struct strbuf *msg, int *ofs)
1333 if (*ofs >= all_msgs->len)
1336 data = &all_msgs->buf[*ofs];
1337 len = all_msgs->len - *ofs;
1339 if (len < 5 || prefixcmp(data, "From "))
1342 p = strchr(data, '\n');
1350 p = strstr(data, "\nFrom ");
1354 strbuf_add(msg, data, len);
1359 static char *imap_folder;
1361 static int git_imap_config(const char *key, const char *val, void *cb)
1363 char imap_key[] = "imap.";
1365 if (strncmp(key, imap_key, sizeof imap_key - 1))
1368 key += sizeof imap_key - 1;
1370 /* check booleans first, and barf on others */
1371 if (!strcmp("sslverify", key))
1372 server.ssl_verify = git_config_bool(key, val);
1373 else if (!strcmp("preformattedhtml", key))
1374 server.use_html = git_config_bool(key, val);
1376 return config_error_nonbool(key);
1378 if (!strcmp("folder", key)) {
1379 imap_folder = xstrdup(val);
1380 } else if (!strcmp("host", key)) {
1381 if (!prefixcmp(val, "imap:"))
1383 else if (!prefixcmp(val, "imaps:")) {
1387 if (!prefixcmp(val, "//"))
1389 server.host = xstrdup(val);
1390 } else if (!strcmp("user", key))
1391 server.user = xstrdup(val);
1392 else if (!strcmp("pass", key))
1393 server.pass = xstrdup(val);
1394 else if (!strcmp("port", key))
1395 server.port = git_config_int(key, val);
1396 else if (!strcmp("tunnel", key))
1397 server.tunnel = xstrdup(val);
1398 else if (!strcmp("authmethod", key))
1399 server.auth_method = xstrdup(val);
1404 int main(int argc, char **argv)
1406 struct strbuf all_msgs = STRBUF_INIT;
1407 struct strbuf msg = STRBUF_INIT;
1408 struct store *ctx = NULL;
1414 git_extract_argv0_path(argv[0]);
1416 git_setup_gettext();
1419 usage(imap_send_usage);
1421 setup_git_directory_gently(&nongit_ok);
1422 git_config(git_imap_config, NULL);
1425 server.port = server.use_ssl ? 993 : 143;
1428 fprintf(stderr, "no imap store specified\n");
1432 if (!server.tunnel) {
1433 fprintf(stderr, "no imap host specified\n");
1436 server.host = "tunnel";
1439 /* read the messages */
1440 if (read_message(stdin, &all_msgs)) {
1441 fprintf(stderr, "error reading input\n");
1445 if (all_msgs.len == 0) {
1446 fprintf(stderr, "nothing to send\n");
1450 total = count_messages(&all_msgs);
1452 fprintf(stderr, "no messages to send\n");
1456 /* write it to the imap server */
1457 ctx = imap_open_store(&server);
1459 fprintf(stderr, "failed to open store\n");
1463 fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : "");
1464 ctx->name = imap_folder;
1466 unsigned percent = n * 100 / total;
1468 fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total);
1469 if (!split_msg(&all_msgs, &msg, &ofs))
1471 if (server.use_html)
1473 r = imap_store_msg(ctx, &msg);
1478 fprintf(stderr, "\n");
1480 imap_close_store(ctx);