X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=blobdiff_plain;f=imap%2Fimap.c;h=ea2eb80fd6d10c8a076879126e81057fd3cf7852;hp=f7b30f4f4f2532dae34cf75afd2d51d4187fdd44;hb=8297f3a57ccff9c0663551658cdd5d3bf166249d;hpb=5b0581b41f115cd0442037a97db313ef5b5b8822

diff --git a/imap/imap.c b/imap/imap.c
index f7b30f4..ea2eb80 100644
--- a/imap/imap.c
+++ b/imap/imap.c
@@ -11,37 +11,17 @@
 
 /* Support for IMAP4rev1, with the occasional nod to IMAP 4. */
 
-#if HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <lib-lib/mem.h>
-#include <lib-lib/ascii.h>
-#include <lib-lib/str.h>
-#include <lib-lib/buffer.h>
-#include <lib-lib/debug.h>
+#include <lib-lib/lib-lib.h>
+#include <lib-mx/mx.h>
 
 #include "mutt.h"
-#include "mx.h"
 #include "globals.h"
+#include "pattern.h"
 #include "sort.h"
-#include "browser.h"
 #include "message.h"
 #include "imap_private.h"
-#if defined(USE_SSL) || defined(USE_GNUTLS)
-# include <lib-sys/mutt_ssl.h>
-#endif
 #include "buffy.h"
 
-#include <lib-lib/macros.h>
-
-#include <unistd.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
 /* imap forward declarations */
 static int imap_get_delim (IMAP_DATA * idata);
 static char *imap_get_flags (string_list_t ** hflags, char *s);
@@ -53,7 +33,7 @@ static void imap_set_flag (IMAP_DATA * idata, int aclbit, int flag,
 /* imap_access: Check permissions on an IMAP mailbox.
  * TODO: ACL checks. Right now we assume if it exists we can
  * mess with it. */
-int imap_access (const char *path, int flags __attribute__ ((unused)))
+static int imap_access (const char *path, int flags __attribute__ ((unused)))
 {
   IMAP_DATA *idata;
   IMAP_MBOX mx;
@@ -74,7 +54,7 @@ int imap_access (const char *path, int flags __attribute__ ((unused)))
   imap_fix_path (idata, mx.mbox, mailbox, sizeof (mailbox));
 
   /* we may already be in the folder we're checking */
-  if (!ascii_strcmp(idata->mailbox, mx.mbox)) {
+  if (!m_strcmp(idata->mailbox, mx.mbox)) {
     p_delete(&mx.mbox);
     return 0;
   }
@@ -87,12 +67,10 @@ int imap_access (const char *path, int flags __attribute__ ((unused)))
   else if (mutt_bit_isset (idata->capabilities, STATUS))
     snprintf (buf, sizeof (buf), "STATUS %s (UID-VALIDITY)", mbox);
   else {
-    debug_print (2, ("STATUS not supported?\n"));
     return -1;
   }
 
   if (imap_exec (idata, buf, IMAP_CMD_FAIL_OK) < 0) {
-    debug_print (1, ("Can't check STATUS of %s\n", mbox));
     return -1;
   }
 
@@ -190,17 +168,13 @@ int imap_read_literal (FILE * fp, IMAP_DATA * idata, long bytes, progress_t* bar
 
   int r = 0;
 
-  debug_print (2, ("reading %ld bytes\n", bytes));
-
   for (pos = 0; pos < bytes; pos++) {
     if (mutt_socket_readchar (idata->conn, &c) != 1) {
-      debug_print (1, ("error during read, %ld bytes read\n", pos));
       idata->status = IMAP_FATAL;
 
       return -1;
     }
 
-#if 1
     if (r == 1 && c != '\n')
       fputc ('\r', fp);
 
@@ -210,14 +184,10 @@ int imap_read_literal (FILE * fp, IMAP_DATA * idata, long bytes, progress_t* bar
     }
     else
       r = 0;
-#endif
+
     fputc (c, fp);
     if (bar && !(pos % 1024))
       mutt_progress_bar (bar, pos);
-#ifdef DEBUG
-    if (DebugFile && DebugLevel >= IMAP_LOG_LTRL)
-      fputc (c, DebugFile);
-#endif
   }
 
   return 0;
@@ -235,8 +205,6 @@ void imap_expunge_mailbox (IMAP_DATA * idata)
     h = idata->ctx->hdrs[i];
 
     if (h->index == -1) {
-      debug_print (2, ("Expunging message UID %d.\n", HEADER_DATA (h)->uid));
-
       h->active = 0;
 
       /* free cached body from disk, if neccessary */
@@ -266,14 +234,14 @@ static int imap_get_delim (IMAP_DATA * idata)
    * than getting the delim wrong */
   idata->delim = '/';
 
-  imap_cmd_start (idata, "string_list_t \"\" \"\"");
+  imap_cmd_start (idata, "LIST \"\" \"\"");
 
   do {
     if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
       break;
 
-    s = imap_next_word (idata->cmd.buf);
-    if (ascii_strncasecmp ("string_list_t", s, 4) == 0) {
+    s = imap_next_word (idata->cmd.buf.data);
+    if (ascii_strncasecmp ("LIST", s, 4) == 0) {
       s = imap_next_word (s);
       s = imap_next_word (s);
       if (s && s[0] == '\"' && s[1] && s[2] == '\"')
@@ -285,13 +253,6 @@ static int imap_get_delim (IMAP_DATA * idata)
   }
   while (rc == IMAP_CMD_CONTINUE);
 
-  if (rc != IMAP_CMD_OK) {
-    debug_print (1, ("failed.\n"));
-    return -1;
-  }
-
-  debug_print (2, ("Delimiter: %c\n", idata->delim));
-
   return -1;
 }
 
@@ -314,7 +275,7 @@ static int imap_check_acl (IMAP_DATA * idata)
 static int imap_check_capabilities (IMAP_DATA * idata)
 {
   if (imap_exec (idata, "CAPABILITY", 0) != 0) {
-    imap_error ("imap_check_capabilities", idata->cmd.buf);
+    imap_error ("imap_check_capabilities", idata->cmd.buf.data);
     return -1;
   }
 
@@ -337,7 +298,6 @@ IMAP_DATA *imap_conn_find (const ACCOUNT * account, int flags)
   CONNECTION *conn;
   IMAP_DATA *idata;
   ACCOUNT *creds;
-  int new = 0;
 
   if (!(conn = mutt_conn_find (NULL, account)))
     return NULL;
@@ -367,35 +327,31 @@ IMAP_DATA *imap_conn_find (const ACCOUNT * account, int flags)
 
   if (!idata) {
     /* The current connection is a new connection */
-    if (!(idata = imap_new_idata ())) {
-      mutt_socket_free (conn);
-      return NULL;
-    }
-
-    conn->data = idata;
+    idata = imap_new_idata();
+    conn->data  = idata;
     idata->conn = conn;
-    new = 1;
   }
 
   if (idata->state == IMAP_DISCONNECTED)
     imap_open_connection (idata);
   if (idata->state == IMAP_CONNECTED) {
-    if (!imap_authenticate (idata)) {
+    if (!imap_authenticate(idata)) {
       idata->state = IMAP_AUTHENTICATED;
-      if (idata->conn->ssf)
-        debug_print (2, ("Communication encrypted at %d bits\n", idata->conn->ssf));
+    } else {
+      mutt_socket_close(idata->conn);
+      idata->state = IMAP_DISCONNECTED;
+      idata->conn->account.has_pass = 0;
     }
-    else
-      mutt_account_unsetpass (&idata->conn->account);
 
     p_delete(&idata->capstr);
   }
-  if (new && idata->state == IMAP_AUTHENTICATED) {
+  if (idata->isnew && idata->state == IMAP_AUTHENTICATED) {
     imap_get_delim (idata);
     if (option (OPTIMAPCHECKSUBSCRIBED)) {
       mutt_message _("Checking mailbox subscriptions");
       imap_exec (idata, "LSUB \"\" \"*\"", 0);
     }
+    idata->isnew = 0;
   }
 
   return idata;
@@ -416,28 +372,22 @@ int imap_open_connection (IMAP_DATA * idata)
     return -1;
   }
 
-  if (ascii_strncasecmp ("* OK", idata->cmd.buf, 4) == 0) {
+  if (ascii_strncasecmp ("* OK", idata->cmd.buf.data, 4) == 0) {
     /* TODO: Parse new tagged CAPABILITY data (* OK [CAPABILITY...]) */
     if (imap_check_capabilities (idata))
       goto bail;
-#if defined(USE_SSL) || defined(USE_GNUTLS)
     /* Attempt STARTTLS if available and desired. */
-    if (!idata->conn->ssf && (option(OPTSSLFORCETLS) || 
+    if (!idata->conn->ssf && (mod_ssl.force_tls ||
                               mutt_bit_isset (idata->capabilities, STARTTLS))) {
       int rc;
 
-      if (option (OPTSSLFORCETLS))
+      if (mod_ssl.force_tls)
         rc = M_YES;
-      else if ((rc = query_quadoption (OPT_SSLSTARTTLS,
-                                       _("Secure connection with TLS?"))) == -1)
-        goto err_close_conn;
-      if (rc == M_YES) {
+      else if (mod_ssl.starttls) {
         if ((rc = imap_exec (idata, "STARTTLS", IMAP_CMD_FAIL_OK)) == -1)
           goto bail;
         if (rc != -2) {
-#if defined (USE_SSL) || defined (USE_GNUTLS)
           if (mutt_ssl_starttls (idata->conn))
-#endif
           {
             mutt_error (_("Could not negotiate TLS connection"));
             mutt_sleep (1);
@@ -452,14 +402,13 @@ int imap_open_connection (IMAP_DATA * idata)
       }
     }
 
-    if (option(OPTSSLFORCETLS) && ! idata->conn->ssf) {
+    if (mod_ssl.force_tls && ! idata->conn->ssf) {
       mutt_error _("Encrypted connection unavailable");
       mutt_sleep (1);
       goto err_close_conn;
     }
-#endif
   }
-  else if (ascii_strncasecmp ("* PREAUTH", idata->cmd.buf, 9) == 0) {
+  else if (ascii_strncasecmp ("* PREAUTH", idata->cmd.buf.data, 9) == 0) {
     idata->state = IMAP_AUTHENTICATED;
     if (imap_check_capabilities (idata) != 0)
       goto bail;
@@ -490,12 +439,10 @@ static char *imap_get_flags (string_list_t ** hflags, char *s)
 
   /* sanity-check string */
   if (ascii_strncasecmp ("FLAGS", s, 5) != 0) {
-    debug_print (1, ("not a FLAGS response: %s\n", s));
     return NULL;
   }
   s = vskipspaces(s + 5);
   if (*s != '(') {
-    debug_print (1, ("bogus FLAGS response: %s\n", s));
     return NULL;
   }
 
@@ -517,7 +464,6 @@ static char *imap_get_flags (string_list_t ** hflags, char *s)
 
   /* note bad flags response */
   if (*s != ')') {
-    debug_print (1, ("Unterminated FLAGS response: %s\n", s));
     string_list_wipe(hflags);
 
     return NULL;
@@ -528,7 +474,7 @@ static char *imap_get_flags (string_list_t ** hflags, char *s)
   return s;
 }
 
-int imap_open_mailbox (CONTEXT * ctx)
+static int imap_open_mailbox (CONTEXT * ctx)
 {
   CONNECTION *conn;
   IMAP_DATA *idata;
@@ -585,21 +531,19 @@ int imap_open_mailbox (CONTEXT * ctx)
     if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
       break;
 
-    pc = idata->cmd.buf + 2;
+    pc = idata->cmd.buf.data + 2;
 
     /* Obtain list of available flags here, may be overridden by a
      * PERMANENTFLAGS tag in the OK response */
     if (ascii_strncasecmp ("FLAGS", pc, 5) == 0) {
       /* don't override PERMANENTFLAGS */
       if (!idata->flags) {
-        debug_print (2, ("Getting mailbox FLAGS\n"));
         if ((pc = imap_get_flags (&(idata->flags), pc)) == NULL)
           goto fail;
       }
     }
     /* PERMANENTFLAGS are massaged to look like FLAGS, then override FLAGS */
     else if (ascii_strncasecmp ("OK [PERMANENTFLAGS", pc, 18) == 0) {
-      debug_print (2, ("Getting mailbox PERMANENTFLAGS\n"));
       /* safe to call on NULL */
       string_list_wipe(&(idata->flags));
       /* skip "OK [PERMANENT" so syntax is the same as FLAGS */
@@ -610,7 +554,6 @@ int imap_open_mailbox (CONTEXT * ctx)
 #ifdef USE_HCACHE
     /* save UIDVALIDITY for the header cache */
     else if (ascii_strncasecmp ("OK [UIDVALIDITY", pc, 14) == 0) {
-      debug_print (2, ("Getting mailbox UIDVALIDITY\n"));
       pc += 3;
       pc = imap_next_word (pc);
 
@@ -630,7 +573,7 @@ int imap_open_mailbox (CONTEXT * ctx)
   if (rc == IMAP_CMD_NO) {
     char *s;
 
-    s = imap_next_word (idata->cmd.buf);        /* skip seq */
+    s = imap_next_word (idata->cmd.buf.data);        /* skip seq */
     s = imap_next_word (s);     /* Skip response */
     mutt_error ("%s", s);
     mutt_sleep (2);
@@ -642,31 +585,11 @@ int imap_open_mailbox (CONTEXT * ctx)
 
   /* check for READ-ONLY notification */
   if (!ascii_strncasecmp
-      (imap_get_qualifier (idata->cmd.buf), "[READ-ONLY]", 11)
+      (imap_get_qualifier (idata->cmd.buf.data), "[READ-ONLY]", 11)
       && !mutt_bit_isset (idata->capabilities, ACL)) {
-    debug_print (2, ("Mailbox is read-only.\n"));
     ctx->readonly = 1;
   }
 
-#ifdef DEBUG
-  /* dump the mailbox flags we've found */
-  if (DebugLevel > 2) {
-    if (!idata->flags)
-      debug_print (3, ("No folder flags found\n"));
-    else {
-      string_list_t *t = idata->flags;
-
-      debug_print (3, ("Mailbox flags:\n"));
-
-      t = t->next;
-      while (t) {
-        debug_print (3, ("[%s]\n", t->data));
-        t = t->next;
-      }
-    }
-  }
-#endif
-
   if (mutt_bit_isset (idata->capabilities, ACL)) {
     if (imap_check_acl (idata))
       goto fail;
@@ -699,7 +622,6 @@ int imap_open_mailbox (CONTEXT * ctx)
     goto fail;
   }
 
-  debug_print (2, ("msgcount is %d\n", ctx->msgcount));
   p_delete(&mx.mbox);
   return 0;
 
@@ -727,7 +649,7 @@ int imap_open_mailbox_append (CONTEXT * ctx)
 
   if (!(idata = imap_conn_find (&(mx.account), 0))) {
     p_delete(&mx.mbox);
-    return (-1);
+    return -1;
   }
   conn = idata->conn;
 
@@ -749,7 +671,7 @@ int imap_open_mailbox_append (CONTEXT * ctx)
   if (imap_create_mailbox (idata, mailbox) < 0)
     return -1;
 
-  return (0);
+  return 0;
 }
 
 /* imap_logout: Gracefully log out of server. */
@@ -760,27 +682,9 @@ void imap_logout (IMAP_DATA * idata)
   idata->status = IMAP_BYE;
   imap_cmd_start (idata, "LOGOUT");
   while (imap_cmd_step (idata) == IMAP_CMD_CONTINUE);
-  p_delete(&idata->cmd.buf);
-  p_delete(&idata);
+  imap_free_idata(&idata);
 }
 
-/*
-int imap_close_connection (CONTEXT *ctx)
-{
-  debug_print (1, (debugfile, "imap_close_connection(): closing connection\n"));
-  if (CTX_DATA->status != IMAP_BYE)
-  {
-    mutt_message _("Closing connection to IMAP server...");
-    imap_logout (CTX_DATA);
-    mutt_clear_error ();
-  }
-  mutt_socket_close (CTX_DATA->conn);
-  CTX_DATA->state = IMAP_DISCONNECTED;
-  CTX_DATA->conn->data = NULL;
-  return 0;
-}
-*/
-
 /* imap_set_flag: append str to flags if we currently have permission
  *   according to aclbit */
 static void imap_set_flag(IMAP_DATA *idata, int aclbit, int flag,
@@ -933,7 +837,7 @@ int imap_sync_message (IMAP_DATA *idata, HEADER *hdr, BUFFER *cmd,
       err_continue && (*err_continue != M_YES))
   {
     *err_continue = imap_continue ("imap_sync_message: STORE failed",
-				   idata->cmd.buf);
+				   idata->cmd.buf.data);
     if (*err_continue != M_YES)
       return -1;
   }
@@ -963,7 +867,6 @@ int imap_sync_mailbox (CONTEXT * ctx, int expunge, int *index_hint)
   idata = (IMAP_DATA *) ctx->data;
 
   if (idata->state != IMAP_SELECTED) {
-    debug_print (2, ("no mailbox selected\n"));
     return -1;
   }
 
@@ -1011,14 +914,11 @@ int imap_sync_mailbox (CONTEXT * ctx, int expunge, int *index_hint)
        * This works better if we're expunging, of course. */
       if ((ctx->hdrs[n]->env && (ctx->hdrs[n]->env->refs_changed || ctx->hdrs[n]->env->irt_changed)) ||
           ctx->hdrs[n]->attach_del) {
-        debug_print (3, ("Attachments to be deleted, falling back to _mutt_save_message\n"));
         if (!appendctx)
           appendctx = mx_open_mailbox (ctx->path, M_APPEND | M_QUIET, NULL);
-        if (!appendctx) {
-          debug_print (1, ("Error opening mailbox in append mode\n"));
-        }
-        else
+        if (appendctx) {
           _mutt_save_message (ctx->hdrs[n], appendctx, 1, 0, 0);
+        }
       }
 
       if (imap_sync_message (idata, ctx->hdrs[n], &cmd, &err_continue) < 0) {
@@ -1037,7 +937,7 @@ int imap_sync_mailbox (CONTEXT * ctx, int expunge, int *index_hint)
     /* Set expunge bit so we don't get spurious reopened messages */
     idata->reopen |= IMAP_EXPUNGE_EXPECTED;
     if (imap_exec (idata, "EXPUNGE", 0) != 0) {
-      imap_error (_("imap_sync_mailbox: EXPUNGE failed"), idata->cmd.buf);
+      imap_error (_("imap_sync_mailbox: EXPUNGE failed"), idata->cmd.buf.data);
       rc = imap_reconnect (ctx);
       goto out;
     }
@@ -1061,7 +961,7 @@ out:
 }
 
 /* imap_close_mailbox: clean up IMAP data in CONTEXT */
-void imap_close_mailbox (CONTEXT * ctx)
+static void imap_close_mailbox (CONTEXT * ctx)
 {
   IMAP_DATA *idata;
   int i;
@@ -1201,7 +1101,7 @@ int imap_mailbox_check (char *path, int new)
     if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
       break;
 
-    s = imap_next_word (idata->cmd.buf);
+    s = imap_next_word (idata->cmd.buf.data);
     if (ascii_strncasecmp ("STATUS", s, 6) == 0) {
       s = imap_next_word (s);
       /* The mailbox name may or may not be quoted here. We could try to 
@@ -1214,12 +1114,9 @@ int imap_mailbox_check (char *path, int new)
         if (isdigit ((unsigned char) *s)) {
           if (*s != '0') {
             msgcount = atoi (s);
-            debug_print (2, ("%d new messages in %s\n", msgcount, path));
           }
         }
       }
-      else
-        debug_print (1, ("STATUS response doesn't match requested mailbox.\n"));
     }
   }
   while (rc == IMAP_CMD_CONTINUE);
@@ -1378,8 +1275,8 @@ int imap_parse_list_response (IMAP_DATA * idata, char **name, int *noselect,
   if (rc != IMAP_CMD_CONTINUE)
     return -1;
 
-  s = imap_next_word (idata->cmd.buf);
-  if ((ascii_strncasecmp ("string_list_t", s, 4) == 0) ||
+  s = imap_next_word (idata->cmd.buf.data);
+  if ((ascii_strncasecmp ("LIST", s, 4) == 0) ||
       (ascii_strncasecmp ("LSUB", s, 4) == 0)) {
     *noselect = 0;
     *noinferiors = 0;
@@ -1419,11 +1316,11 @@ int imap_parse_list_response (IMAP_DATA * idata, char **name, int *noselect,
     }
     s = imap_next_word (s);     /* name */
     if (s && *s == '{') {       /* Literal */
-      if (imap_get_literal_count (idata->cmd.buf, &bytes) < 0)
+      if (imap_get_literal_count (idata->cmd.buf.data, &bytes) < 0)
         return -1;
       if (imap_cmd_step (idata) != IMAP_CMD_CONTINUE)
         return -1;
-      *name = idata->cmd.buf;
+      *name = idata->cmd.buf.data;
     }
     else
       *name = s;
@@ -1438,8 +1335,6 @@ int imap_subscribe (char *path, int subscribe)
   IMAP_DATA *idata;
   char buf[LONG_STRING];
   char mbox[LONG_STRING];
-  char errstr[STRING];
-  BUFFER err, token;
   IMAP_MBOX mx;
 
   if (mx_get_magic (path) != M_IMAP || imap_parse_path (path, &mx) < 0) {
@@ -1455,14 +1350,7 @@ int imap_subscribe (char *path, int subscribe)
   imap_fix_path (idata, mx.mbox, buf, sizeof (buf));
 
   if (option (OPTIMAPCHECKSUBSCRIBED)) {
-    p_clear(&token, 1);
-    err.data = errstr;
-    err.dsize = sizeof (errstr);
-    snprintf (mbox, sizeof (mbox), "%smailboxes \"%s\"",
-              subscribe ? "" : "un", path);
-    if (mutt_parse_rc_line (mbox, &token, &err))
-      debug_print (1, ("Error adding subscribed mailbox: %s\n", errstr));
-    p_delete(&token.data);
+    buffy_do_mailboxes(path, subscribe);
   }
 
   if (subscribe)
@@ -1507,10 +1395,10 @@ static int imap_complete_hosts (char *dest, ssize_t len) {
   int i = 0;
 
   matchlen = m_strlen(dest);
-  if (list_empty (Incoming))
-    return (-1);
-  for (i = 0; i < Incoming->length; i++) {
-    mailbox = (BUFFY*) Incoming->data[i];
+  if (!Incoming.len)
+    return -1;
+  for (i = 0; i < Incoming.len; i++) {
+    mailbox = Incoming.arr[i];
     if (!m_strncmp(dest, mailbox->path, matchlen)) {
       if (rc) {
         m_strcpy(dest, len, mailbox->path);
@@ -1582,7 +1470,7 @@ int imap_complete (char *dest, size_t dlen, char *path) {
 
   /* fire off command */
   snprintf (buf, sizeof (buf), "%s \"\" \"%s%%\"",
-            option (OPTIMAPLSUB) ? "LSUB" : "string_list_t", list);
+            option (OPTIMAPLSUB) ? "LSUB" : "LIST", list);
 
   imap_cmd_start (idata, buf);
 
@@ -1616,7 +1504,7 @@ int imap_complete (char *dest, size_t dlen, char *path) {
       completions++;
     }
   }
-  while (ascii_strncmp (idata->cmd.seq, idata->cmd.buf, SEQLEN));
+  while (m_strncmp(idata->cmd.seq, idata->cmd.buf.data, SEQLEN));
 
   if (completions) {
     /* reformat output */
@@ -1636,7 +1524,7 @@ int imap_reconnect (CONTEXT * ctx)
   IMAP_DATA *imap_data;
 
   if (!ctx)
-    return (-1);
+    return -1;
 
   imap_data = (IMAP_DATA *) ctx->data;
 
@@ -1653,3 +1541,64 @@ int imap_reconnect (CONTEXT * ctx)
   mx_open_mailbox (ctx->path, 0, ctx);
   return 0;
 }
+
+int imap_is_magic (const char* path, struct stat* st __attribute__ ((unused))) {
+  url_scheme_t s;
+  if (!path || !*path)
+    return -1;
+  s = url_check_scheme (NONULL (path));
+  return (s == U_IMAP || s == U_IMAPS) ? M_IMAP : -1;
+}
+
+static int acl_check_imap (CONTEXT* ctx, int bit) {
+  return (!mutt_bit_isset (((IMAP_DATA*) ctx->data)->capabilities, ACL) ||
+          mutt_bit_isset (((IMAP_DATA*) ctx->data)->rights, bit));
+}
+
+static int imap_open_new_message (MESSAGE * msg,
+                                  CONTEXT * dest __attribute__ ((unused)),
+                                  HEADER * hdr __attribute__ ((unused)))
+{
+    char tmp[_POSIX_PATH_MAX];
+
+    msg->fp = m_tempfile(tmp, sizeof(tmp), NONULL(mod_core.tmpdir), NULL);
+    if (!msg->fp) {
+        mutt_perror(tmp);
+        return -1;
+    }
+
+    msg->path = m_strdup(tmp);
+    return 0;
+}
+
+/* this ugly kludge is required since the last int to
+ * imap_check_mailbox() doesn't mean 'lock' but 'force'... */
+static int _imap_check_mailbox (CONTEXT* ctx,
+                                int* index_hint,
+                                int lock __attribute__ ((unused))) {
+  return imap_check_mailbox (ctx, index_hint, 0);
+}
+
+static int imap_commit_message (MESSAGE* msg, CONTEXT* ctx) {
+  int r = 0;
+
+  if ((r = m_fclose(&msg->fp)) == 0)
+    r = imap_append_message (ctx, msg);
+  return r;
+}
+
+mx_t const imap_mx = {
+    M_IMAP,
+    0,
+    imap_is_magic,
+    NULL,
+    imap_access,
+    imap_open_mailbox,
+    imap_open_new_message,
+    imap_fetch_message,
+    acl_check_imap,
+    _imap_check_mailbox,
+    imap_close_mailbox,
+    imap_sync_mailbox,
+    imap_commit_message,
+};