2 * Copyright notice from original mutt:
3 * Copyright (C) 1996-8 Michael R. Elkins <me@mutt.org>
4 * Copyright (C) 1996-9 Brandon Long <blong@fiction.net>
5 * Copyright (C) 1999-2005 Brendan Cully <brendan@kublai.com>
7 * This file is part of mutt-ng, see http://www.muttng.org/.
8 * It's licensed under the GNU General Public License,
9 * please see the file GPL in the top level source directory.
12 /* Support for IMAP4rev1, with the occasional nod to IMAP 4. */
14 #include <lib-lib/lib-lib.h>
15 #include <lib-mx/mx.h>
23 #include "imap_private.h"
26 /* imap forward declarations */
27 static int imap_get_delim (IMAP_DATA * idata);
28 static char *imap_get_flags (string_list_t ** hflags, char *s);
29 static int imap_check_acl (IMAP_DATA * idata);
30 static int imap_check_capabilities (IMAP_DATA * idata);
31 static void imap_set_flag (IMAP_DATA * idata, int aclbit, int flag,
32 const char *str, char *flags, size_t flsize);
34 /* imap_access: Check permissions on an IMAP mailbox.
35 * TODO: ACL checks. Right now we assume if it exists we can
37 static int imap_access (const char *path, int flags __attribute__ ((unused)))
41 char buf[LONG_STRING];
42 char mailbox[LONG_STRING];
43 char mbox[LONG_STRING];
45 if (imap_parse_path (path, &mx))
48 if (!(idata = imap_conn_find (&mx.account,
49 option (OPTIMAPPASSIVE) ? M_IMAP_CONN_NONEW :
55 imap_fix_path (idata, mx.mbox, mailbox, sizeof (mailbox));
57 /* we may already be in the folder we're checking */
58 if (!m_strcmp(idata->mailbox, mx.mbox)) {
64 imap_munge_mbox_name (mbox, sizeof (mbox), mailbox);
66 if (mutt_bit_isset (idata->capabilities, IMAP4REV1))
67 snprintf (buf, sizeof (buf), "STATUS %s (UIDVALIDITY)", mbox);
68 else if (mutt_bit_isset (idata->capabilities, STATUS))
69 snprintf (buf, sizeof (buf), "STATUS %s (UID-VALIDITY)", mbox);
74 if (imap_exec (idata, buf, IMAP_CMD_FAIL_OK) < 0) {
81 int imap_create_mailbox (IMAP_DATA * idata, char *mailbox)
83 char buf[LONG_STRING], mbox[LONG_STRING];
85 imap_munge_mbox_name (mbox, sizeof (mbox), mailbox);
86 snprintf (buf, sizeof (buf), "CREATE %s", mbox);
88 if (imap_exec (idata, buf, 0) != 0)
94 int imap_rename_mailbox (IMAP_DATA * idata, IMAP_MBOX * mx,
97 char oldmbox[LONG_STRING];
98 char newmbox[LONG_STRING];
99 char buf[LONG_STRING];
101 imap_munge_mbox_name (oldmbox, sizeof (oldmbox), mx->mbox);
102 imap_munge_mbox_name (newmbox, sizeof (newmbox), newname);
104 snprintf (buf, sizeof (buf), "RENAME %s %s", oldmbox, newmbox);
106 if (imap_exec (idata, buf, 0) != 0)
112 int imap_delete_mailbox (CONTEXT * ctx, IMAP_MBOX mx)
114 char buf[LONG_STRING], mbox[LONG_STRING];
117 if (!ctx || !ctx->data) {
118 if (!(idata = imap_conn_find (&mx.account,
119 option (OPTIMAPPASSIVE) ? M_IMAP_CONN_NONEW
129 imap_munge_mbox_name (mbox, sizeof (mbox), mx.mbox);
130 snprintf (buf, sizeof (buf), "DELETE %s", mbox);
132 if (imap_exec ((IMAP_DATA *) idata, buf, 0) != 0)
138 /* imap_logout_all: close all open connections. Quick and dirty until we can
139 * make sure we've got all the context we need. */
140 void imap_logout_all (void)
145 conn = mutt_socket_head ();
150 if (conn->account.type == M_ACCT_TYPE_IMAP && conn->fd >= 0) {
151 mutt_message (_("Closing connection to %s..."), conn->account.host);
152 imap_logout ((IMAP_DATA *) conn->data);
154 mutt_socket_close (conn);
155 mutt_socket_free (conn);
162 /* imap_read_literal: read bytes bytes from server into file. Not explicitly
163 * buffered, relies on FILE buffering. NOTE: strips \r from \r\n.
164 * Apparently even literals use \r\n-terminated strings ?! */
165 int imap_read_literal (FILE * fp, IMAP_DATA * idata, long bytes, progress_t* bar)
172 for (pos = 0; pos < bytes; pos++) {
173 if (mutt_socket_readchar (idata->conn, &c) != 1) {
174 idata->status = IMAP_FATAL;
179 if (r == 1 && c != '\n')
190 if (bar && !(pos % 1024))
191 mutt_progress_bar (bar, pos);
197 /* imap_expunge_mailbox: Purge IMAP portion of expunged messages from the
198 * context. Must not be done while something has a handle on any headers
199 * (eg inside pager or editor). That is, check IMAP_REOPEN_ALLOW. */
200 void imap_expunge_mailbox (IMAP_DATA * idata)
205 for (i = 0; i < idata->ctx->msgcount; i++) {
206 h = idata->ctx->hdrs[i];
208 if (h->index == -1) {
211 /* free cached body from disk, if neccessary */
212 cacheno = HEADER_DATA (h)->uid % IMAP_CACHE_LEN;
213 if (idata->cache[cacheno].uid == HEADER_DATA (h)->uid &&
214 idata->cache[cacheno].path) {
215 unlink (idata->cache[cacheno].path);
216 p_delete(&idata->cache[cacheno].path);
219 imap_free_header_data (&h->data);
223 /* We may be called on to expunge at any time. We can't rely on the caller
224 * to always know to rethread */
225 mx_update_tables (idata->ctx, 0);
226 mutt_sort_headers (idata->ctx, 1);
229 static int imap_get_delim (IMAP_DATA * idata)
234 /* assume that the delim is /. If this fails, we're in bigger trouble
235 * than getting the delim wrong */
238 imap_cmd_start (idata, "LIST \"\" \"\"");
241 if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
244 s = imap_next_word (idata->cmd.buf.data);
245 if (ascii_strncasecmp ("LIST", s, 4) == 0) {
246 s = imap_next_word (s);
247 s = imap_next_word (s);
248 if (s && s[0] == '\"' && s[1] && s[2] == '\"')
250 else if (s && s[0] == '\"' && s[1] && s[1] == '\\' && s[2]
255 while (rc == IMAP_CMD_CONTINUE);
260 /* get rights for folder, let imap_handle_untagged do the rest */
261 static int imap_check_acl (IMAP_DATA * idata)
263 char buf[LONG_STRING];
264 char mbox[LONG_STRING];
266 imap_munge_mbox_name (mbox, sizeof (mbox), idata->mailbox);
267 snprintf (buf, sizeof (buf), "MYRIGHTS %s", mbox);
268 if (imap_exec (idata, buf, 0) != 0) {
269 imap_error ("imap_check_acl", buf);
275 /* imap_check_capabilities: make sure we can log in to this server. */
276 static int imap_check_capabilities (IMAP_DATA * idata)
278 if (imap_exec (idata, "CAPABILITY", 0) != 0) {
279 imap_error ("imap_check_capabilities", idata->cmd.buf.data);
283 if (!(mutt_bit_isset (idata->capabilities, IMAP4)
284 || mutt_bit_isset (idata->capabilities, IMAP4REV1))) {
285 mutt_error _("This IMAP server is ancient. Mutt does not work with it.");
287 mutt_sleep (2); /* pause a moment to let the user see the error */
295 /* imap_conn_find: Find an open IMAP connection matching account, or open
296 * a new one if none can be found. */
297 IMAP_DATA *imap_conn_find (const ACCOUNT * account, int flags)
303 if (!(conn = mutt_conn_find (NULL, account)))
306 /* if opening a new UNSELECTED connection, preserve existing creds */
307 creds = &(conn->account);
309 /* make sure this connection is not in SELECTED state, if neccessary */
310 if (flags & M_IMAP_CONN_NOSELECT)
311 while (conn->data && ((IMAP_DATA *) conn->data)->state == IMAP_SELECTED) {
312 if (!(conn = mutt_conn_find (conn, account)))
314 memcpy (&(conn->account), creds, sizeof (ACCOUNT));
317 idata = (IMAP_DATA *) conn->data;
319 /* don't open a new connection if one isn't wanted */
320 if (flags & M_IMAP_CONN_NONEW) {
322 mutt_socket_free (conn);
325 if (idata->state < IMAP_AUTHENTICATED)
330 /* The current connection is a new connection */
331 idata = imap_new_idata();
336 if (idata->state == IMAP_DISCONNECTED)
337 imap_open_connection (idata);
338 if (idata->state == IMAP_CONNECTED) {
339 if (!imap_authenticate(idata)) {
340 idata->state = IMAP_AUTHENTICATED;
342 mutt_socket_close(idata->conn);
343 idata->state = IMAP_DISCONNECTED;
344 idata->conn->account.has_pass = 0;
347 p_delete(&idata->capstr);
349 if (idata->isnew && idata->state == IMAP_AUTHENTICATED) {
350 imap_get_delim (idata);
351 if (option (OPTIMAPCHECKSUBSCRIBED)) {
352 mutt_message _("Checking mailbox subscriptions");
353 imap_exec (idata, "LSUB \"\" \"*\"", 0);
361 int imap_open_connection (IMAP_DATA * idata)
363 char buf[LONG_STRING];
365 if (mutt_socket_open (idata->conn) < 0)
368 idata->state = IMAP_CONNECTED;
370 if (imap_cmd_step (idata) != IMAP_CMD_CONTINUE) {
371 mutt_socket_close (idata->conn);
372 idata->state = IMAP_DISCONNECTED;
376 if (ascii_strncasecmp ("* OK", idata->cmd.buf.data, 4) == 0) {
377 /* TODO: Parse new tagged CAPABILITY data (* OK [CAPABILITY...]) */
378 if (imap_check_capabilities (idata))
380 /* Attempt STARTTLS if available and desired. */
381 if (!idata->conn->ssf && (mod_ssl.force_tls ||
382 mutt_bit_isset (idata->capabilities, STARTTLS))) {
385 if (mod_ssl.force_tls)
387 else if (mod_ssl.starttls) {
388 if ((rc = imap_exec (idata, "STARTTLS", IMAP_CMD_FAIL_OK)) == -1)
391 if (mutt_ssl_starttls (idata->conn))
393 mutt_error (_("Could not negotiate TLS connection"));
398 /* RFC 2595 demands we recheck CAPABILITY after TLS completes. */
399 if (imap_exec (idata, "CAPABILITY", 0))
406 if (mod_ssl.force_tls && ! idata->conn->ssf) {
407 mutt_error _("Encrypted connection unavailable");
412 else if (ascii_strncasecmp ("* PREAUTH", idata->cmd.buf.data, 9) == 0) {
413 idata->state = IMAP_AUTHENTICATED;
414 if (imap_check_capabilities (idata) != 0)
416 p_delete(&idata->capstr);
419 imap_error ("imap_open_connection()", buf);
426 mutt_socket_close (idata->conn);
427 idata->state = IMAP_DISCONNECTED;
429 p_delete(&idata->capstr);
433 /* imap_get_flags: Make a simple list out of a FLAGS response.
434 * return stream following FLAGS response */
435 static char *imap_get_flags (string_list_t ** hflags, char *s)
437 string_list_t *flags;
441 /* sanity-check string */
442 if (ascii_strncasecmp ("FLAGS", s, 5) != 0) {
445 s = vskipspaces(s + 5);
450 /* create list, update caller's flags handle */
451 flags = string_item_new();
454 while (*s && *s != ')') {
455 s = vskipspaces(s + 1);
457 while (*s && (*s != ')') && !ISSPACE (*s))
462 mutt_add_list (flags, flag_word);
466 /* note bad flags response */
468 string_list_wipe(hflags);
478 static int imap_open_mailbox (CONTEXT * ctx)
482 char buf[LONG_STRING];
483 char bufout[LONG_STRING];
488 if (imap_parse_path (ctx->path, &mx)) {
489 mutt_error (_("%s is an invalid IMAP path"), ctx->path);
493 /* we require a connection which isn't currently in IMAP_SELECTED state */
494 if (!(idata = imap_conn_find (&(mx.account), M_IMAP_CONN_NOSELECT)))
496 if (idata->state < IMAP_AUTHENTICATED)
501 /* once again the context is new */
504 /* Clean up path and replace the one in the ctx */
505 imap_fix_path (idata, mx.mbox, buf, sizeof (buf));
506 p_delete(&(idata->mailbox));
507 idata->mailbox = m_strdup(buf);
508 imap_qualify_path (buf, sizeof (buf), &mx, idata->mailbox);
510 p_delete(&(ctx->path));
511 ctx->path = m_strdup(buf);
515 /* clear mailbox status */
517 memset (idata->rights, 0, (RIGHTSMAX + 7) / 8);
518 idata->newMailCount = 0;
520 mutt_message (_("Selecting %s..."), idata->mailbox);
521 imap_munge_mbox_name (buf, sizeof (buf), idata->mailbox);
522 snprintf (bufout, sizeof (bufout), "%s %s",
523 ctx->readonly ? "EXAMINE" : "SELECT", buf);
525 idata->state = IMAP_SELECTED;
527 imap_cmd_start (idata, bufout);
532 if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
535 pc = idata->cmd.buf.data + 2;
537 /* Obtain list of available flags here, may be overridden by a
538 * PERMANENTFLAGS tag in the OK response */
539 if (ascii_strncasecmp ("FLAGS", pc, 5) == 0) {
540 /* don't override PERMANENTFLAGS */
542 if ((pc = imap_get_flags (&(idata->flags), pc)) == NULL)
546 /* PERMANENTFLAGS are massaged to look like FLAGS, then override FLAGS */
547 else if (ascii_strncasecmp ("OK [PERMANENTFLAGS", pc, 18) == 0) {
548 /* safe to call on NULL */
549 string_list_wipe(&(idata->flags));
550 /* skip "OK [PERMANENT" so syntax is the same as FLAGS */
552 if ((pc = imap_get_flags (&(idata->flags), pc)) == NULL)
556 /* save UIDVALIDITY for the header cache */
557 else if (ascii_strncasecmp ("OK [UIDVALIDITY", pc, 14) == 0) {
559 pc = imap_next_word (pc);
561 sscanf (pc, "%lu", &(idata->uid_validity));
565 pc = imap_next_word (pc);
566 if (!ascii_strncasecmp ("EXISTS", pc, 6)) {
567 count = idata->newMailCount;
568 idata->newMailCount = 0;
572 while (rc == IMAP_CMD_CONTINUE);
574 if (rc == IMAP_CMD_NO) {
577 s = imap_next_word (idata->cmd.buf.data); /* skip seq */
578 s = imap_next_word (s); /* Skip response */
579 mutt_error ("%s", s);
584 if (rc != IMAP_CMD_OK)
587 /* check for READ-ONLY notification */
588 if (!ascii_strncasecmp
589 (imap_get_qualifier (idata->cmd.buf.data), "[READ-ONLY]", 11)
590 && !mutt_bit_isset (idata->capabilities, ACL)) {
594 if (mutt_bit_isset (idata->capabilities, ACL)) {
595 if (imap_check_acl (idata))
597 if (!(mutt_bit_isset (idata->rights, ACL_DELETE) ||
598 mutt_bit_isset (idata->rights, ACL_SEEN) ||
599 mutt_bit_isset (idata->rights, ACL_WRITE) ||
600 mutt_bit_isset (idata->rights, ACL_INSERT)))
603 /* assume we have all rights if ACL is unavailable */
605 mutt_bit_set (idata->rights, ACL_LOOKUP);
606 mutt_bit_set (idata->rights, ACL_READ);
607 mutt_bit_set (idata->rights, ACL_SEEN);
608 mutt_bit_set (idata->rights, ACL_WRITE);
609 mutt_bit_set (idata->rights, ACL_INSERT);
610 mutt_bit_set (idata->rights, ACL_POST);
611 mutt_bit_set (idata->rights, ACL_CREATE);
612 mutt_bit_set (idata->rights, ACL_DELETE);
616 ctx->hdrs = p_new(HEADER *, count);
617 ctx->v2r = p_new(int, count);
619 if (count && (imap_read_headers (idata, 0, count - 1) < 0)) {
620 mutt_error _("Error opening mailbox");
630 if (idata->state == IMAP_SELECTED)
631 idata->state = IMAP_AUTHENTICATED;
637 int imap_open_mailbox_append (CONTEXT * ctx)
641 char buf[LONG_STRING];
642 char mailbox[LONG_STRING];
645 if (imap_parse_path (ctx->path, &mx))
648 /* in APPEND mode, we appear to hijack an existing IMAP connection -
649 * ctx is brand new and mostly empty */
651 if (!(idata = imap_conn_find (&(mx.account), 0))) {
660 imap_fix_path (idata, mx.mbox, mailbox, sizeof (mailbox));
664 /* really we should also check for W_OK */
665 if (!imap_access (ctx->path, F_OK))
668 snprintf (buf, sizeof (buf), _("Create %s?"), mailbox);
669 if (option (OPTCONFIRMCREATE) && mutt_yesorno (buf, 1) < 1)
672 if (imap_create_mailbox (idata, mailbox) < 0)
678 /* imap_logout: Gracefully log out of server. */
679 void imap_logout (IMAP_DATA * idata)
681 /* we set status here to let imap_handle_untagged know we _expect_ to
682 * receive a bye response (so it doesn't freak out and close the conn) */
683 idata->status = IMAP_BYE;
684 imap_cmd_start (idata, "LOGOUT");
685 while (imap_cmd_step (idata) == IMAP_CMD_CONTINUE);
686 imap_free_idata(&idata);
689 /* imap_set_flag: append str to flags if we currently have permission
690 * according to aclbit */
691 static void imap_set_flag(IMAP_DATA *idata, int aclbit, int flag,
692 const char *str, char *flags, size_t flsize)
694 if (mutt_bit_isset(idata->rights, aclbit)) {
696 m_strcat(flags, flsize, str);
700 /* imap_make_msg_set: make an IMAP4rev1 UID message set out of a set of
701 * headers, given a flag enum to filter on.
702 * Params: idata: IMAP_DATA containing context containing header set
703 * buf: to write message set into
704 * buflen: length of buffer
705 * flag: enum of flag type on which to filter
706 * changed: include only changed messages in message set
707 * Returns: number of messages in message set (0 if no matches) */
708 int imap_make_msg_set (IMAP_DATA * idata, BUFFER * buf, int flag, int changed)
710 HEADER **hdrs; /* sorted local copy */
711 int count = 0; /* number of messages in message set */
712 int match = 0; /* whether current message matches flag condition */
713 int setstart = 0; /* start of current message range */
715 short oldsort; /* we clobber reverse, must restore it */
717 /* assuming 32-bit UIDs */
721 /* make copy of header pointers to sort in natural order */
722 hdrs = p_dup(idata->ctx->hdrs, idata->ctx->msgcount);
724 if (Sort != SORT_ORDER) {
727 qsort ((void *) hdrs, idata->ctx->msgcount, sizeof (HEADER *),
728 mutt_get_sort_func (SORT_ORDER));
732 for (n = 0; n < idata->ctx->msgcount; n++) {
734 /* don't include pending expunged messages */
738 if (hdrs[n]->deleted)
747 if (match && (!changed || hdrs[n]->changed)) {
750 setstart = HEADER_DATA (hdrs[n])->uid;
752 snprintf (uid, sizeof (uid), "%u", HEADER_DATA (hdrs[n])->uid);
753 mutt_buffer_addstr (buf, uid);
757 snprintf (uid, sizeof (uid), ",%u", HEADER_DATA (hdrs[n])->uid);
758 mutt_buffer_addstr (buf, uid);
761 /* tie up if the last message also matches */
762 else if (n == idata->ctx->msgcount - 1) {
763 snprintf (uid, sizeof (uid), ":%u", HEADER_DATA (hdrs[n])->uid);
764 mutt_buffer_addstr (buf, uid);
767 /* this message is not expunged and doesn't match. End current set. */
768 else if (setstart && hdrs[n]->active) {
769 if (HEADER_DATA (hdrs[n - 1])->uid > setstart) {
770 snprintf (uid, sizeof (uid), ":%u", HEADER_DATA (hdrs[n - 1])->uid);
771 mutt_buffer_addstr (buf, uid);
782 /* Update the IMAP server to reflect the flags a single message. */
784 int imap_sync_message (IMAP_DATA *idata, HEADER *hdr, BUFFER *cmd,
787 char flags[LONG_STRING];
792 snprintf (uid, sizeof (uid), "%u", HEADER_DATA(hdr)->uid);
793 cmd->dptr = cmd->data;
794 mutt_buffer_addstr (cmd, "UID STORE ");
795 mutt_buffer_addstr (cmd, uid);
799 imap_set_flag (idata, ACL_SEEN, hdr->read, "\\Seen ",
800 flags, sizeof (flags));
801 imap_set_flag (idata, ACL_WRITE, hdr->flagged,
802 "\\Flagged ", flags, sizeof (flags));
803 imap_set_flag (idata, ACL_WRITE, hdr->replied,
804 "\\Answered ", flags, sizeof (flags));
805 imap_set_flag (idata, ACL_DELETE, hdr->deleted,
806 "\\Deleted ", flags, sizeof (flags));
808 /* now make sure we don't lose custom tags */
809 if (mutt_bit_isset (idata->rights, ACL_WRITE))
810 imap_add_keywords (flags, hdr, idata->flags, sizeof (flags));
814 /* UW-IMAP is OK with null flags, Cyrus isn't. The only solution is to
815 * explicitly revoke all system flags (if we have permission) */
818 imap_set_flag (idata, ACL_SEEN, 1, "\\Seen ", flags, sizeof (flags));
819 imap_set_flag (idata, ACL_WRITE, 1, "\\Flagged ", flags, sizeof (flags));
820 imap_set_flag (idata, ACL_WRITE, 1, "\\Answered ", flags, sizeof (flags));
821 imap_set_flag (idata, ACL_DELETE, 1, "\\Deleted ", flags, sizeof (flags));
825 mutt_buffer_addstr (cmd, " -FLAGS.SILENT (");
827 mutt_buffer_addstr (cmd, " FLAGS.SILENT (");
829 mutt_buffer_addstr (cmd, flags);
830 mutt_buffer_addstr (cmd, ")");
832 /* dumb hack for bad UW-IMAP 4.7 servers spurious FLAGS updates */
835 /* after all this it's still possible to have no flags, if you
836 * have no ACL rights */
837 if (*flags && (imap_exec (idata, cmd->data, 0) != 0) &&
838 err_continue && (*err_continue != M_YES))
840 *err_continue = imap_continue ("imap_sync_message: STORE failed",
841 idata->cmd.buf.data);
842 if (*err_continue != M_YES)
847 idata->ctx->changed--;
852 /* update the IMAP server to reflect message changes done within mutt.
854 * ctx: the current context
855 * expunge: 0 or 1 - do expunge?
858 int imap_sync_mailbox (CONTEXT * ctx, int expunge, int *index_hint)
861 CONTEXT *appendctx = NULL;
865 int err_continue = M_NO; /* continue on error? */
868 idata = (IMAP_DATA *) ctx->data;
870 if (idata->state != IMAP_SELECTED) {
874 /* This function is only called when the calling code expects the context
876 imap_allow_reopen (ctx);
878 if ((rc = imap_check_mailbox (ctx, index_hint, 0)) != 0)
883 /* if we are expunging anyway, we can do deleted messages very quickly... */
884 if (expunge && mutt_bit_isset (idata->rights, ACL_DELETE)) {
885 mutt_buffer_addstr (&cmd, "UID STORE ");
886 deleted = imap_make_msg_set (idata, &cmd, M_DELETE, 1);
888 /* if we have a message set, then let's delete */
890 mutt_message (_("Marking %d messages deleted..."), deleted);
891 mutt_buffer_addstr (&cmd, " +FLAGS.SILENT (\\Deleted)");
892 /* mark these messages as unchanged so second pass ignores them. Done
893 * here so BOGUS UW-IMAP 4.7 SILENT FLAGS updates are ignored. */
894 for (n = 0; n < ctx->msgcount; n++)
895 if (ctx->hdrs[n]->deleted && ctx->hdrs[n]->changed)
896 ctx->hdrs[n]->active = 0;
897 if (imap_exec (idata, cmd.data, 0) != 0) {
898 mutt_error (_("Expunge failed"));
906 /* save status changes */
907 for (n = 0; n < ctx->msgcount; n++) {
908 if (ctx->hdrs[n]->active && ctx->hdrs[n]->changed) {
910 mutt_message (_("Saving message status flags... [%d/%d]"), n + 1,
913 /* if the message has been rethreaded or attachments have been deleted
914 * we delete the message and reupload it.
915 * This works better if we're expunging, of course. */
916 if ((ctx->hdrs[n]->env && (ctx->hdrs[n]->env->refs_changed || ctx->hdrs[n]->env->irt_changed)) ||
917 ctx->hdrs[n]->attach_del) {
919 appendctx = mx_open_mailbox (ctx->path, M_APPEND | M_QUIET, NULL);
921 _mutt_save_message (ctx->hdrs[n], appendctx, 1, 0, 0);
925 if (imap_sync_message (idata, ctx->hdrs[n], &cmd, &err_continue) < 0) {
933 /* We must send an EXPUNGE command if we're not closing. */
934 if (expunge && !(ctx->closing) &&
935 mutt_bit_isset (idata->rights, ACL_DELETE)) {
936 mutt_message _("Expunging messages from server...");
938 /* Set expunge bit so we don't get spurious reopened messages */
939 idata->reopen |= IMAP_EXPUNGE_EXPECTED;
940 if (imap_exec (idata, "EXPUNGE", 0) != 0) {
941 imap_error (_("imap_sync_mailbox: EXPUNGE failed"), idata->cmd.buf.data);
942 rc = imap_reconnect (ctx);
947 if (expunge && ctx->closing) {
948 if (imap_exec (idata, "CLOSE", 0))
949 mutt_error (_("CLOSE failed"));
950 idata->state = IMAP_AUTHENTICATED;
958 mx_fastclose_mailbox (appendctx);
959 p_delete(&appendctx);
964 /* imap_close_mailbox: clean up IMAP data in CONTEXT */
965 static void imap_close_mailbox (CONTEXT * ctx)
970 idata = (IMAP_DATA *) ctx->data;
971 /* Check to see if the mailbox is actually open */
975 if (ctx == idata->ctx) {
976 if (idata->state != IMAP_FATAL && idata->state == IMAP_SELECTED) {
977 /* mx_close_mailbox won't sync if there are no deleted messages
978 * and the mailbox is unchanged, so we may have to close here */
979 if (!ctx->deleted && imap_exec (idata, "CLOSE", 0))
980 mutt_error (_("CLOSE failed"));
981 idata->state = IMAP_AUTHENTICATED;
984 idata->reopen &= IMAP_REOPEN_ALLOW;
985 p_delete(&(idata->mailbox));
986 string_list_wipe(&idata->flags);
990 /* free IMAP part of headers */
991 for (i = 0; i < ctx->msgcount; i++)
992 imap_free_header_data (&(ctx->hdrs[i]->data));
994 for (i = 0; i < IMAP_CACHE_LEN; i++) {
995 if (idata->cache[i].path) {
996 unlink (idata->cache[i].path);
997 p_delete(&idata->cache[i].path);
1002 /* use the NOOP command to poll for new mail
1005 * M_REOPENED mailbox has been externally modified
1006 * M_NEW_MAIL new mail has arrived!
1010 int imap_check_mailbox (CONTEXT * ctx, int *index_hint __attribute__ ((unused)), int force)
1012 /* overload keyboard timeout to avoid many mailbox checks in a row.
1013 * Most users don't like having to wait exactly when they press a key. */
1017 idata = (IMAP_DATA *) ctx->data;
1019 if ((force || time (NULL) >= idata->lastread + Timeout)
1020 && imap_exec (idata, "NOOP", 0) != 0)
1023 /* We call this even when we haven't run NOOP in case we have pending
1024 * changes to process, since we can reopen here. */
1025 imap_cmd_finish (idata);
1027 if (idata->check_status & IMAP_EXPUNGE_PENDING)
1028 result = M_REOPENED;
1029 else if (idata->check_status & IMAP_NEWMAIL_PENDING)
1030 result = M_NEW_MAIL;
1031 else if (idata->check_status & IMAP_FLAGS_PENDING)
1034 idata->check_status = 0;
1045 * 0+ number of messages in mailbox
1046 * -1 error while polling mailboxes
1048 int imap_mailbox_check (char *path, int new)
1052 char buf[LONG_STRING];
1053 char mbox[LONG_STRING];
1054 char mbox_unquoted[LONG_STRING];
1061 if (imap_parse_path (path, &mx))
1064 /* If imap_passive is set, don't open a connection to check for new mail */
1065 if (option (OPTIMAPPASSIVE))
1066 connflags = M_IMAP_CONN_NONEW;
1068 if (!(idata = imap_conn_find (&(mx.account), connflags))) {
1074 imap_fix_path (idata, mx.mbox, buf, sizeof (buf));
1077 imap_munge_mbox_name (mbox, sizeof (mbox), buf);
1078 m_strcpy(mbox_unquoted, sizeof(mbox_unquoted), buf);
1080 /* The draft IMAP implementor's guide warns againts using the STATUS
1081 * command on a mailbox that you have selected
1084 if (m_strcmp(mbox_unquoted, idata->mailbox) == 0
1085 || (ascii_strcasecmp (mbox_unquoted, "INBOX") == 0
1086 && m_strcasecmp(mbox_unquoted, idata->mailbox) == 0)) {
1087 m_strcpy(buf, sizeof(buf), "NOOP");
1089 else if (mutt_bit_isset (idata->capabilities, IMAP4REV1) ||
1090 mutt_bit_isset (idata->capabilities, STATUS)) {
1091 snprintf (buf, sizeof (buf), "STATUS %s (%s)", mbox,
1092 new == 1 ? "RECENT" : (new == 2 ? "UNSEEN" : "MESSAGES"));
1095 /* Server does not support STATUS, and this is not the current mailbox.
1096 * There is no lightweight way to check recent arrivals */
1099 imap_cmd_start (idata, buf);
1102 if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
1105 s = imap_next_word (idata->cmd.buf.data);
1106 if (ascii_strncasecmp ("STATUS", s, 6) == 0) {
1107 s = imap_next_word (s);
1108 /* The mailbox name may or may not be quoted here. We could try to
1109 * munge the server response and compare with quoted (or vise versa)
1110 * but it is probably more efficient to just strncmp against both. */
1111 if (m_strncmp(mbox_unquoted, s, m_strlen(mbox_unquoted)) == 0
1112 || m_strncmp(mbox, s, m_strlen(mbox)) == 0) {
1113 s = imap_next_word (s);
1114 s = imap_next_word (s);
1115 if (isdigit ((unsigned char) *s)) {
1117 msgcount = atoi (s);
1123 while (rc == IMAP_CMD_CONTINUE);
1128 /* returns number of patterns in the search that should be done server-side
1129 * (eg are full-text) */
1130 static int do_search (const pattern_t* search, int allpats)
1133 const pattern_t* pat;
1135 for (pat = search; pat; pat = pat->next) {
1140 if (pat->stringmatch)
1144 if (pat->child && do_search (pat->child, 1))
1155 /* convert mutt pattern_t to IMAP SEARCH command containing only elements
1156 * that require full-text search (mutt already has what it needs for most
1157 * match types, and does a better job (eg server doesn't support regexps). */
1158 static int imap_compile_search (const pattern_t* pat, BUFFER* buf)
1160 if (! do_search (pat, 0))
1164 mutt_buffer_addstr (buf, "NOT ");
1169 if ((clauses = do_search (pat->child, 1)) > 0) {
1170 const pattern_t* clause = pat->child;
1172 mutt_buffer_addch (buf, '(');
1175 if (do_search (clause, 0)) {
1176 if (pat->op == M_OR && clauses > 1)
1177 mutt_buffer_addstr (buf, "OR ");
1179 if (imap_compile_search (clause, buf) < 0)
1183 mutt_buffer_addch (buf, ' ');
1185 clause = clause->next;
1189 mutt_buffer_addch (buf, ')');
1197 mutt_buffer_addstr (buf, "HEADER ");
1199 /* extract header name */
1200 if (! (delim = strchr (pat->str, ':'))) {
1201 mutt_error (_("Header search without header name: %s"), pat->str);
1205 imap_quote_string (term, sizeof (term), pat->str);
1206 mutt_buffer_addstr (buf, term);
1207 mutt_buffer_addch (buf, ' ');
1211 delim = vskipspaces(delim);
1212 imap_quote_string (term, sizeof (term), delim);
1213 mutt_buffer_addstr (buf, term);
1217 mutt_buffer_addstr (buf, "BODY ");
1218 imap_quote_string (term, sizeof (term), pat->str);
1219 mutt_buffer_addstr (buf, term);
1223 mutt_buffer_addstr (buf, "TEXT ");
1224 imap_quote_string (term, sizeof (term), pat->str);
1225 mutt_buffer_addstr (buf, term);
1233 int imap_search (CONTEXT* ctx, const pattern_t* pat) {
1235 IMAP_DATA* idata = (IMAP_DATA*)ctx->data;
1238 for (i = 0; i < ctx->msgcount; i++)
1239 ctx->hdrs[i]->matched = 0;
1241 if (!do_search (pat, 1))
1245 mutt_buffer_addstr (&buf, "UID SEARCH ");
1246 if (imap_compile_search (pat, &buf) < 0) {
1247 p_delete(&buf.data);
1250 if (imap_exec (idata, buf.data, 0) < 0) {
1251 p_delete(&buf.data);
1255 p_delete(&buf.data);
1259 /* all this listing/browsing is a mess. I don't like that name is a pointer
1260 * into idata->buf (used to be a pointer into the passed in buffer, just
1261 * as bad), nor do I like the fact that the fetch is done here. This
1262 * code can't possibly handle non-string_list_t untagged responses properly.
1264 int imap_parse_list_response (IMAP_DATA * idata, char **name, int *noselect,
1265 int *noinferiors, char *delim)
1273 rc = imap_cmd_step (idata);
1274 if (rc == IMAP_CMD_OK)
1276 if (rc != IMAP_CMD_CONTINUE)
1279 s = imap_next_word (idata->cmd.buf.data);
1280 if ((ascii_strncasecmp ("LIST", s, 4) == 0) ||
1281 (ascii_strncasecmp ("LSUB", s, 4) == 0)) {
1285 s = imap_next_word (s); /* flags */
1291 while (*ep && *ep != ')')
1294 if (!ascii_strncasecmp (s, "\\NoSelect", 9))
1296 if (!ascii_strncasecmp (s, "\\NoInferiors", 12))
1298 /* See draft-gahrns-imap-child-mailbox-?? */
1299 if (!ascii_strncasecmp (s, "\\HasNoChildren", 14))
1303 while (*s && *s != '\\' && *s != ')')
1309 s = imap_next_word (s); /* delim */
1310 /* Reset the delimiter, this can change */
1311 if (ascii_strncasecmp (s, "NIL", 3)) {
1312 if (s && s[0] == '\"' && s[1] && s[2] == '\"')
1314 else if (s && s[0] == '\"' && s[1] && s[1] == '\\' && s[2]
1318 s = imap_next_word (s); /* name */
1319 if (s && *s == '{') { /* Literal */
1320 if (imap_get_literal_count (idata->cmd.buf.data, &bytes) < 0)
1322 if (imap_cmd_step (idata) != IMAP_CMD_CONTINUE)
1324 *name = idata->cmd.buf.data;
1333 int imap_subscribe (char *path, int subscribe)
1337 char buf[LONG_STRING];
1338 char mbox[LONG_STRING];
1341 if (mx_get_magic (path) != M_IMAP || imap_parse_path (path, &mx) < 0) {
1342 mutt_error (_("Bad mailbox name"));
1346 if (!(idata = imap_conn_find (&(mx.account), 0)))
1351 imap_fix_path (idata, mx.mbox, buf, sizeof (buf));
1353 if (option (OPTIMAPCHECKSUBSCRIBED)) {
1354 buffy_do_mailboxes(path, subscribe);
1358 mutt_message (_("Subscribing to %s..."), buf);
1360 mutt_message (_("Unsubscribing to %s..."), buf);
1361 imap_munge_mbox_name (mbox, sizeof (mbox), buf);
1363 snprintf (buf, sizeof (buf), "%sSUBSCRIBE %s", subscribe ? "" : "UN", mbox);
1365 if (imap_exec (idata, buf, 0) < 0)
1376 /* trim dest to the length of the longest prefix it shares with src,
1377 * returning the length of the trimmed string */
1378 static int longest_common_prefix (char *dest, const char* src,
1379 int start, ssize_t dlen) {
1382 while (pos < dlen && dest[pos] && dest[pos] == src[pos])
1389 /* look for IMAP URLs to complete from defined mailboxes. Could be extended
1390 * to complete over open connections and account/folder hooks too. */
1391 static int imap_complete_hosts (char *dest, ssize_t len) {
1398 matchlen = m_strlen(dest);
1401 for (i = 0; i < Incoming.len; i++) {
1402 mailbox = Incoming.arr[i];
1403 if (!m_strncmp(dest, mailbox->path, matchlen)) {
1405 m_strcpy(dest, len, mailbox->path);
1408 longest_common_prefix (dest, mailbox->path, matchlen, len);
1412 for (conn = mutt_socket_head (); conn && conn->next; conn = conn->next) {
1414 char urlstr[LONG_STRING];
1416 if (conn->account.type != M_ACCT_TYPE_IMAP)
1419 mutt_account_tourl (&conn->account, &url);
1420 /* FIXME: how to handle multiple users on the same host? */
1423 url_ciss_tostring (&url, urlstr, sizeof (urlstr), 0);
1424 if (!m_strncmp(dest, urlstr, matchlen)) {
1426 m_strcpy(dest, len, urlstr);
1429 longest_common_prefix (dest, urlstr, matchlen, len);
1436 /* imap_complete: given a partial IMAP folder path, return a string which
1437 * adds as much to the path as is unique */
1438 int imap_complete (char *dest, size_t dlen, char *path) {
1441 char list[LONG_STRING];
1442 char buf[LONG_STRING];
1443 char *list_word = NULL;
1444 int noselect, noinferiors;
1446 char completion[LONG_STRING];
1447 int clen, matchlen = 0;
1448 int completions = 0;
1451 if (imap_parse_path (path, &mx) || !mx.mbox) {
1452 m_strcpy(dest, dlen, path);
1453 return imap_complete_hosts (dest, dlen);
1456 /* don't open a new socket just for completion. Instead complete over
1457 * known mailboxes/hooks/etc */
1458 if (!(idata = imap_conn_find (&(mx.account), M_IMAP_CONN_NONEW))) {
1460 m_strcpy(dest, dlen, path);
1461 return imap_complete_hosts (dest, dlen);
1465 /* reformat path for IMAP list, and append wildcard */
1466 /* don't use INBOX in place of "" */
1467 if (mx.mbox && mx.mbox[0])
1468 imap_fix_path (idata, mx.mbox, list, sizeof (list));
1472 /* fire off command */
1473 snprintf (buf, sizeof (buf), "%s \"\" \"%s%%\"",
1474 option (OPTIMAPLSUB) ? "LSUB" : "LIST", list);
1476 imap_cmd_start (idata, buf);
1478 /* and see what the results are */
1479 m_strcpy(completion, sizeof(completion), NONULL(mx.mbox));
1481 if (imap_parse_list_response (idata, &list_word, &noselect, &noinferiors,
1486 /* store unquoted */
1487 imap_unmunge_mbox_name (list_word);
1489 /* if the folder isn't selectable, append delimiter to force browse
1490 * to enter it on second tab. */
1492 clen = m_strlen(list_word);
1493 list_word[clen++] = delim;
1494 list_word[clen] = '\0';
1496 /* copy in first word */
1498 m_strcpy(completion, sizeof(completion), list_word);
1499 matchlen = m_strlen(completion);
1504 matchlen = longest_common_prefix (completion, list_word, 0, matchlen);
1508 while (m_strncmp(idata->cmd.seq, idata->cmd.buf.data, SEQLEN));
1511 /* reformat output */
1512 imap_qualify_path (dest, dlen, &mx, completion);
1513 mutt_pretty_mailbox (dest);
1522 /* reconnect if connection was lost */
1523 int imap_reconnect (CONTEXT * ctx)
1525 IMAP_DATA *imap_data;
1530 imap_data = (IMAP_DATA *) ctx->data;
1533 if (imap_data->status == IMAP_CONNECTED)
1537 if (query_quadoption
1539 _("Connection lost. Reconnect to IMAP server?")) != M_YES)
1542 mx_open_mailbox (ctx->path, 0, ctx);
1546 int imap_is_magic (const char* path, struct stat* st __attribute__ ((unused))) {
1548 if (!path || !*path)
1550 s = url_check_scheme (NONULL (path));
1551 return ((s == U_IMAP || s == U_IMAPS) ? M_IMAP : -1);
1554 static int acl_check_imap (CONTEXT* ctx, int bit) {
1555 return (!mutt_bit_isset (((IMAP_DATA*) ctx->data)->capabilities, ACL) ||
1556 mutt_bit_isset (((IMAP_DATA*) ctx->data)->rights, bit));
1559 static int imap_open_new_message (MESSAGE * msg,
1560 CONTEXT * dest __attribute__ ((unused)),
1561 HEADER * hdr __attribute__ ((unused)))
1563 char tmp[_POSIX_PATH_MAX];
1565 msg->fp = m_tempfile(tmp, sizeof(tmp), NONULL(mod_core.tmpdir), NULL);
1571 msg->path = m_strdup(tmp);
1575 /* this ugly kludge is required since the last int to
1576 * imap_check_mailbox() doesn't mean 'lock' but 'force'... */
1577 static int _imap_check_mailbox (CONTEXT* ctx,
1579 int lock __attribute__ ((unused))) {
1580 return (imap_check_mailbox (ctx, index_hint, 0));
1583 static int imap_commit_message (MESSAGE* msg, CONTEXT* ctx) {
1586 if ((r = m_fclose(&msg->fp)) == 0)
1587 r = imap_append_message (ctx, msg);
1591 mx_t const imap_mx = {
1598 imap_open_new_message,
1600 _imap_check_mailbox,
1603 imap_commit_message,