Fix use after free
[claws.git] / src / imap.c
index d1ce50531f6acf72a08b70eb6f46808b068cef13..0e1e777aa6744c5c9c19fc456606a4d253bce473 100644 (file)
@@ -1,6 +1,6 @@
 /*
- * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2014 Hiroyuki Yamamoto and the Claws Mail team
+ * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2016 Hiroyuki Yamamoto and the Claws Mail team
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,7 +14,6 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
- * 
  */
 
 #ifdef HAVE_CONFIG_H
@@ -59,7 +58,6 @@
 #include "prefs_account.h"
 #include "codeconv.h"
 #include "md5.h"
-#include "base64.h"
 #include "utils.h"
 #include "prefs_common.h"
 #include "inputdialog.h"
 #include "account.h"
 #include "tags.h"
 #include "main.h"
+#include "passwordstore.h"
 
 typedef struct _IMAPFolder     IMAPFolder;
 typedef struct _IMAPSession    IMAPSession;
 typedef struct _IMAPNameSpace  IMAPNameSpace;
 typedef struct _IMAPFolderItem IMAPFolderItem;
 
-#include "prefs_account.h"
-
 #define IMAP_FOLDER(obj)       ((IMAPFolder *)obj)
 #define IMAP_FOLDER_ITEM(obj)  ((IMAPFolderItem *)obj)
 #define IMAP_SESSION(obj)      ((IMAPSession *)obj)
@@ -401,7 +398,7 @@ static gint imap_cmd_store  (IMAPSession    *session,
                                 IMAPFlags flags,
                                 GSList *tags,
                                 int do_add);
-static gint imap_cmd_expunge   (IMAPSession    *session, gboolean force);
+static gint imap_cmd_expunge   (IMAPSession    *session);
 
 static void imap_path_separator_subst          (gchar          *str,
                                                 gchar           separator);
@@ -428,7 +425,6 @@ static gint imap_get_flags                  (Folder         *folder,
                                                 FolderItem     *item,
                                                 MsgInfoList    *msglist,
                                                 GHashTable     *msgflags);
-static gchar *imap_folder_get_path             (Folder         *folder);
 static gchar *imap_item_get_path               (Folder         *folder,
                                                 FolderItem     *item);
 static MsgInfo *imap_parse_msg(const gchar *file, FolderItem *item);
@@ -461,7 +457,7 @@ FolderClass *imap_get_class(void)
        if (imap_class.idstr == NULL) {
                imap_class.type = F_IMAP;
                imap_class.idstr = "imap";
-               imap_class.uistr = "IMAP4";
+               imap_class.uistr = "IMAP";
                imap_class.supports_server_search = TRUE;
 
                /* Folder functions */
@@ -506,9 +502,6 @@ FolderClass *imap_get_class(void)
                imap_class.synchronise = imap_synchronise;
                imap_class.remove_cached_msg = imap_remove_cached_msg;
                imap_class.commit_tags = imap_commit_tags;
-#ifdef USE_PTREAD
-               pthread_mutex_init(&imap_mutex, NULL);
-#endif
        }
        
        return &imap_class;
@@ -580,7 +573,7 @@ static void imap_disc_session_destroy(IMAPSession *session)
        
        if (rfolder == NULL)
                return;
-       log_warning(LOG_PROTOCOL, _("IMAP4 connection broken\n"));
+       log_warning(LOG_PROTOCOL, _("IMAP connection broken\n"));
        SESSION(session)->state = SESSION_DISCONNECTED;
        SESSION(session)->sock = NULL;
 }
@@ -619,134 +612,134 @@ static void imap_handle_error(Session *session, const gchar *server, int libetpa
        case MAILIMAP_NO_ERROR:
                return;
        case MAILIMAP_NO_ERROR_AUTHENTICATED:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: authenticated\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("authenticated"), "\n", NULL), session_server);
                break;
        case MAILIMAP_NO_ERROR_NON_AUTHENTICATED:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: not authenticated\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("not authenticated"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_BAD_STATE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: bad state\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("bad state"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_STREAM:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: stream error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("stream error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_PARSE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: parse error "
-                                           "(very probably non-RFC compliance from the server)\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("parse error "
+                                           "(very probably non-RFC compliance from the server)"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_CONNECTION_REFUSED:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: connection refused\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("connection refused"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_MEMORY:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: memory error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("memory error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_FATAL:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: fatal error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("fatal error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_PROTOCOL:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: protocol error"
-                                           "(very probably non-RFC compliance from the server)\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("protocol error "
+                                           "(very probably non-RFC compliance from the server)"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_DONT_ACCEPT_CONNECTION:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: connection not accepted\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("connection not accepted"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_APPEND:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: APPEND error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("APPEND error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_NOOP:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: NOOP error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("NOOP error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_LOGOUT:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LOGOUT error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("LOGOUT error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_CAPABILITY:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CAPABILITY error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("CAPABILITY error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_CHECK:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CHECK error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("CHECK error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_CLOSE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CLOSE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("CLOSE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_EXPUNGE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: EXPUNGE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("EXPUNGE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_COPY:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: COPY error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("COPY error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_UID_COPY:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID COPY error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("UID COPY error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_CREATE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CREATE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("CREATE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_DELETE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: DELETE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("DELETE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_EXAMINE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: EXAMINE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("EXAMINE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_FETCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: FETCH error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("FETCH error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_UID_FETCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID FETCH error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("UID FETCH error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_LIST:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LIST error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("LIST error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_LOGIN:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LOGIN error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("LOGIN error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_LSUB:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LSUB error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("LSUB error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_RENAME:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: RENAME error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("RENAME error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_SEARCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SEARCH error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("SEARCH error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_UID_SEARCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID SEARCH error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("UID SEARCH error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_SELECT:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SELECT error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("SELECT error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_STATUS:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: STATUS error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("STATUS error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_STORE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: STORE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("STORE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_UID_STORE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID STORE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("UID STORE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_SUBSCRIBE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SUBSCRIBE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("SUBSCRIBE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_UNSUBSCRIBE:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UNSUBSCRIBE error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("UNSUBSCRIBE error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_STARTTLS:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: STARTTLS error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("STARTTLS error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_INVAL:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: INVAL error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("INVAL error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_EXTENSION:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: EXTENSION error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("EXTENSION error"), "\n", NULL), session_server);
                break;
        case MAILIMAP_ERROR_SASL:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SASL error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("SASL error"), "\n", NULL), session_server);
                break;
 #ifdef USE_GNUTLS
        case MAILIMAP_ERROR_SSL:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SSL error\n"), session_server);
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("SSL/TLS error"), "\n", NULL), session_server);
                break;
 #endif
        default:
-               log_warning(LOG_PROTOCOL, _("IMAP error on %s: Unknown error [%d]\n"),
+               log_warning(LOG_PROTOCOL, g_strconcat(_("IMAP error on %s:"), " ", _("Unknown error [%d]"), "\n", NULL),
                        session_server, libetpan_errcode);
                break;
        }
@@ -836,12 +829,12 @@ static int imap_get_capabilities(IMAPSession *session)
 {
        struct mailimap_capability_data *capabilities = NULL;
        clistiter *cur;
-       int result = -1;
+       int result;
 
        if (session->capability != NULL)
                return MAILIMAP_NO_ERROR;
 
-       capabilities = imap_threaded_capability(session->folder, &result);
+       result = imap_threaded_capability(session->folder, &capabilities);
 
        if (result != MAILIMAP_NO_ERROR) {
                return result;
@@ -899,9 +892,18 @@ static gint imap_auth(IMAPSession *session, const gchar *user, const gchar *pass
        case IMAP_AUTH_DIGEST_MD5:
                ok = imap_cmd_login(session, user, pass, "DIGEST-MD5");
                break;
+       case IMAP_AUTH_SCRAM_SHA1:
+               ok = imap_cmd_login(session, user, pass, "SCRAM-SHA-1");
+               break;
+       case IMAP_AUTH_PLAIN:
+               ok = imap_cmd_login(session, user, pass, "PLAIN");
+               break;
        case IMAP_AUTH_LOGIN:
                ok = imap_cmd_login(session, user, pass, "LOGIN");
                break;
+       case IMAP_AUTH_PLAINTEXT:
+               ok = imap_cmd_login(session, user, pass, "plaintext");
+               break;
        case IMAP_AUTH_GSSAPI:
                ok = imap_cmd_login(session, user, pass, "GSSAPI");
                break;
@@ -910,21 +912,31 @@ static gint imap_auth(IMAPSession *session, const gchar *user, const gchar *pass
                                "\t ANONYMOUS %d\n"
                                "\t CRAM-MD5 %d\n"
                                "\t DIGEST-MD5 %d\n"
+                               "\t SCRAM-SHA-1 %d\n"
+                               "\t PLAIN %d\n"
                                "\t LOGIN %d\n"
                                "\t GSSAPI %d\n", 
                        imap_has_capability(session, "ANONYMOUS"),
                        imap_has_capability(session, "CRAM-MD5"),
                        imap_has_capability(session, "DIGEST-MD5"),
+                       imap_has_capability(session, "SCRAM-SHA-1"),
+                       imap_has_capability(session, "PLAIN"),
                        imap_has_capability(session, "LOGIN"),
                        imap_has_capability(session, "GSSAPI"));
                if (imap_has_capability(session, "CRAM-MD5"))
                        ok = imap_cmd_login(session, user, pass, "CRAM-MD5");
                if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "DIGEST-MD5"))
                        ok = imap_cmd_login(session, user, pass, "DIGEST-MD5");
+               if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "SCRAM-SHA-1"))
+                       ok = imap_cmd_login(session, user, pass, "SCRAM-SHA-1");
+               if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "PLAIN"))
+                       ok = imap_cmd_login(session, user, pass, "PLAIN");
+               if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "LOGIN"))
+                       ok = imap_cmd_login(session, user, pass, "LOGIN");
                if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "GSSAPI"))
                        ok = imap_cmd_login(session, user, pass, "GSSAPI");
-               if (ok == MAILIMAP_ERROR_LOGIN) /* we always try LOGIN before giving up */
-                       ok = imap_cmd_login(session, user, pass, "LOGIN");
+               if (ok == MAILIMAP_ERROR_LOGIN) /* we always try plaintext login before giving up */
+                       ok = imap_cmd_login(session, user, pass, "plaintext");
        }
 
        if (ok == MAILIMAP_NO_ERROR)
@@ -942,6 +954,24 @@ static gint imap_auth(IMAPSession *session, const gchar *user, const gchar *pass
                                     "DIGEST-MD5 SASL plugin is installed.");
                } 
 
+               if (type == IMAP_AUTH_SCRAM_SHA1) {
+                       ext_info = _("\n\nSCRAM-SHA-1 logins only work if libetpan has been "
+                                    "compiled with SASL support and the "
+                                    "SCRAM SASL plugin is installed.");
+               }
+
+               if (type == IMAP_AUTH_PLAIN) {
+                       ext_info = _("\n\nPLAIN logins only work if libetpan has been "
+                                    "compiled with SASL support and the "
+                                    "PLAIN SASL plugin is installed.");
+               }
+
+               if (type == IMAP_AUTH_LOGIN) {
+                       ext_info = _("\n\nLOGIN logins only work if libetpan has been "
+                                    "compiled with SASL support and the "
+                                    "LOGIN SASL plugin is installed.");
+               }
+
                if (time(NULL) - last_login_err > 10) {
                        if (!prefs_common.no_recv_err_panel) {
                                alertpanel_error_log(_("Connection to %s failed: "
@@ -973,10 +1003,10 @@ static IMAPSession *imap_reconnect_if_possible(Folder *folder, IMAPSession *sess
                session = NULL;
        } else {
                rfolder->session = NULL;
-               log_warning(LOG_PROTOCOL, _("IMAP4 connection to %s has been"
+               log_warning(LOG_PROTOCOL, _("IMAP connection to %s has been"
                            " disconnected. Reconnecting...\n"),
                            folder->account->recv_server);
-               statusbar_print_all(_("IMAP4 connection to %s has been"
+               statusbar_print_all(_("IMAP connection to %s has been"
                            " disconnected. Reconnecting...\n"),
                            folder->account->recv_server);
                SESSION(session)->state = SESSION_DISCONNECTED;
@@ -1117,8 +1147,8 @@ static IMAPSession *imap_session_new(Folder * folder,
        if (account->ssl_imap != SSL_NONE) {
                if (alertpanel_full(_("Insecure connection"),
                        _("This connection is configured to be secured "
-                         "using SSL, but SSL is not available in this "
-                         "build of Claws Mail. \n\n"
+                         "using SSL/TLS, but SSL/TLS is not available "
+                         "in this build of Claws Mail. \n\n"
                          "Do you want to continue connecting to this "
                          "server? The communication would not be "
                          "secure."),
@@ -1132,7 +1162,7 @@ static IMAPSession *imap_session_new(Folder * folder,
 #endif
 
        imap_init(folder);
-       buf = g_strdup_printf(_("Account '%s': Connecting to IMAP4 server: %s:%d..."),
+       buf = g_strdup_printf(_("Account '%s': Connecting to IMAP server: %s:%d..."),
                                folder->account->account_name, folder->account->recv_server,
                                port);
        statuswindow_print_all("%s", buf);
@@ -1174,16 +1204,16 @@ static IMAPSession *imap_session_new(Folder * folder,
        else {
 #ifdef USE_GNUTLS
                if (r == MAILIMAP_ERROR_SSL)
-                       log_error(LOG_PROTOCOL, _("SSL handshake failed\n"));
+                       log_error(LOG_PROTOCOL, _("SSL/TLS handshake failed\n"));
                else
 #endif
                        imap_handle_error(NULL, account->recv_server, r);
 
                if(!prefs_common.no_recv_err_panel) {
-                       alertpanel_error_log(_("Can't connect to IMAP4 server: %s:%d"),
+                       alertpanel_error_log(_("Can't connect to IMAP server: %s:%d"),
                                         account->recv_server, port);
                } else {
-                       log_error(LOG_PROTOCOL, _("Can't connect to IMAP4 server: %s:%d\n"),
+                       log_error(LOG_PROTOCOL, _("Can't connect to IMAP server: %s:%d\n"),
                                         account->recv_server, port);
                } 
                
@@ -1216,7 +1246,7 @@ static IMAPSession *imap_session_new(Folder * folder,
 
                ok = imap_cmd_starttls(session);
                if (ok != MAILIMAP_NO_ERROR) {
-                       log_warning(LOG_PROTOCOL, _("Can't start TLS session.\n"));
+                       log_warning(LOG_PROTOCOL, _("Can't start STARTTLS session.\n"));
                        if (!is_fatal(ok)) {
                                SESSION(session)->sock = NULL;
                                imap_safe_destroy(session);
@@ -1241,18 +1271,17 @@ static IMAPSession *imap_session_new(Folder * folder,
 static gint imap_session_authenticate(IMAPSession *session, 
                                      PrefsAccount *account)
 {
-       gchar *pass, *acc_pass;
+       gchar *pass, *acc_pass = NULL;
        gboolean failed = FALSE;
        gint ok = MAILIMAP_NO_ERROR;
        g_return_val_if_fail(account->userid != NULL, MAILIMAP_ERROR_BAD_STATE);
 
-       if (password_get(account->userid, account->recv_server, "imap",
-                        SESSION(session)->port, &pass)) {
-               Xstrdup_a(acc_pass, pass, {g_free(pass); return MAILIMAP_NO_ERROR;});
-               g_free(pass);
-       } else {
-               acc_pass = account->passwd;
+       if (!password_get(account->userid, account->recv_server, "imap",
+                        SESSION(session)->port, &acc_pass)) {
+               acc_pass = passwd_store_get_account(account->account_id,
+                               PWS_ACCOUNT_RECV);
        }
+
 try_again:
        pass = acc_pass;
        if (!pass && account->imap_auth_type != IMAP_AUTH_ANON && account->imap_auth_type != IMAP_AUTH_GSSAPI) {
@@ -1260,8 +1289,9 @@ try_again:
                tmp_pass = input_dialog_query_password_keep(account->recv_server, 
                                                            account->userid,
                                                            &(account->session_passwd));
-               if (!tmp_pass)
+               if (!tmp_pass) {
                        return MAILIMAP_NO_ERROR;
+               }
                Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return MAILIMAP_NO_ERROR;});
                g_free(tmp_pass);
        } else if (account->imap_auth_type == IMAP_AUTH_ANON || account->imap_auth_type == IMAP_AUTH_GSSAPI) {
@@ -1270,7 +1300,11 @@ try_again:
        if ((ok = imap_auth(session, account->userid, pass, account->imap_auth_type)) != MAILIMAP_NO_ERROR) {
                
                if (!failed && !is_fatal(ok)) {
-                       acc_pass = NULL;
+                       if (acc_pass != NULL) {
+                               memset(acc_pass, 0, strlen(acc_pass));
+                               g_free(acc_pass);
+                               acc_pass = NULL;
+                       }
                        failed = TRUE;
                        if (account->session_passwd != NULL) {
                                g_free(account->session_passwd);
@@ -1283,11 +1317,21 @@ try_again:
                                mainwindow_show_error();
                        } else
                                alertpanel_error_log(_("Couldn't login to IMAP server %s."), account->recv_server);
-               }               
+               }
+
+               if (acc_pass != NULL) {
+                       memset(acc_pass, 0, strlen(acc_pass));
+                       g_free(acc_pass);
+                       acc_pass = NULL;
+               }
 
                return ok;
        } 
 
+       if (acc_pass) {
+               memset(acc_pass, 0, strlen(acc_pass));
+               g_free(acc_pass);
+       }
        statuswindow_pop_all();
        session->authenticated = TRUE;
        return MAILIMAP_NO_ERROR;
@@ -1528,7 +1572,7 @@ static gchar *imap_fetch_msg_full(Folder *folder, FolderItem *item, gint uid,
                                                        have_size, cached->size);
                                        procmsg_msginfo_set_flags(cached, MSG_FULLY_CACHED, 0);
                                }
-                               procmsg_msginfo_free(cached);
+                               procmsg_msginfo_free(&cached);
                                return filename;
                        } else if (!cached && time(NULL) - get_file_mtime(filename) < 60) {
                                debug_print("message not cached and file recent, considering file complete\n");
@@ -1536,18 +1580,18 @@ static gchar *imap_fetch_msg_full(Folder *folder, FolderItem *item, gint uid,
                                if (ok == 0)
                                        return filename;
                        } else {
-                               procmsg_msginfo_free(cached);
+                               procmsg_msginfo_free(&cached);
                        }
                }
                if (cached && MSG_IS_FULLY_CACHED(cached->flags)) {
-                       procmsg_msginfo_free(cached);
+                       procmsg_msginfo_free(&cached);
                        return filename;
                }
        } else {
                MsgInfo *cached = msgcache_get_msg(item->cache,uid);
                if (cached) {
                        procmsg_msginfo_unset_flags(cached, MSG_FULLY_CACHED, 0);
-                       procmsg_msginfo_free(cached);
+                       procmsg_msginfo_free(&cached);
                }
        }
 
@@ -1565,7 +1609,7 @@ static gchar *imap_fetch_msg_full(Folder *folder, FolderItem *item, gint uid,
        ok = imap_select(session, IMAP_FOLDER(folder), item,
                         NULL, NULL, NULL, NULL, NULL, FALSE);
        if (ok != MAILIMAP_NO_ERROR) {
-               g_warning("can't select mailbox %s\n", item->path);
+               g_warning("can't select mailbox %s", item->path);
                g_free(filename);
                return NULL;
        }
@@ -1576,7 +1620,7 @@ static gchar *imap_fetch_msg_full(Folder *folder, FolderItem *item, gint uid,
        ok = imap_cmd_fetch(session, (guint32)uid, filename, headers, body);
 
        if (ok != MAILIMAP_NO_ERROR) {
-               g_warning("can't fetch message %d\n", uid);
+               g_warning("can't fetch message %d", uid);
                g_free(filename);
                return NULL;
        }
@@ -1590,13 +1634,13 @@ static gchar *imap_fetch_msg_full(Folder *folder, FolderItem *item, gint uid,
                MsgInfo *cached = msgcache_get_msg(item->cache,uid);
                if (cached) {
                        procmsg_msginfo_set_flags(cached, MSG_FULLY_CACHED, 0);
-                       procmsg_msginfo_free(cached);
+                       procmsg_msginfo_free(&cached);
                }
        } else if (ok == -1) {
                MsgInfo *cached = msgcache_get_msg(item->cache,uid);
                if (cached) {
                        procmsg_msginfo_unset_flags(cached, MSG_FULLY_CACHED, 0);
-                       procmsg_msginfo_free(cached);
+                       procmsg_msginfo_free(&cached);
                }
        }
        return filename;
@@ -1612,7 +1656,7 @@ static gboolean imap_is_msg_fully_cached(Folder *folder, FolderItem *item, gint
                return FALSE;
 
        if (MSG_IS_FULLY_CACHED(cached->flags)) {
-               procmsg_msginfo_free(cached);
+               procmsg_msginfo_free(&cached);
                return TRUE;
        }
 
@@ -1632,11 +1676,11 @@ static gboolean imap_is_msg_fully_cached(Folder *folder, FolderItem *item, gint
        if (cached && size >= cached->size) {
                cached->total_size = cached->size;
                procmsg_msginfo_set_flags(cached, MSG_FULLY_CACHED, 0);
-               procmsg_msginfo_free(cached);
+               procmsg_msginfo_free(&cached);
                return TRUE;
        }
        if (cached)
-               procmsg_msginfo_free(cached);
+               procmsg_msginfo_free(&cached);
        return FALSE;   
 }
 
@@ -1740,7 +1784,7 @@ static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
                                     &new_uid);
 
                if (ok != MAILIMAP_NO_ERROR) {
-                       g_warning("can't append message %s\n", real_file);
+                       g_warning("can't append message %s", real_file);
                        g_free(real_file);
                        g_free(destdir);
                        statusbar_progress_all(0,0,0);
@@ -1860,7 +1904,7 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
        msginfo = (MsgInfo *)msglist->data;
        src = msginfo->folder;
        if (!same_dest_ok && src == dest) {
-               g_warning("the src folder is identical to the dest.\n");
+               g_warning("the src folder is identical to the dest.");
                return -1;
        }
 
@@ -1988,8 +2032,11 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
                                if (!is_dir_exist(cache_path))
                                        make_dir_hier(cache_path);
                                if (is_file_exist(real_file) && is_dir_exist(cache_path)) {
-                                       copy_file(real_file, cache_file, TRUE);
-                                       debug_print("copied to cache: %s\n", cache_file);
+                                       if (copy_file(real_file, cache_file, TRUE) < 0)
+                                               debug_print("couldn't cache to %s: %s\n", cache_file,
+                                                           strerror(errno));
+                                       else
+                                               debug_print("copied to cache: %s\n", cache_file);
                                }
                                g_free(real_file);
                                g_free(cache_file);
@@ -2056,6 +2103,7 @@ static gboolean imap_matcher_type_is_local(gint matchertype)
        case MATCHCRITERIA_TO_OR_CC:
        case MATCHCRITERIA_SUBJECT:
        case MATCHCRITERIA_REFERENCES:
+       case MATCHCRITERIA_MESSAGEID:
        case MATCHCRITERIA_INREPLYTO:
        case MATCHCRITERIA_AGE_GREATER:
        case MATCHCRITERIA_AGE_LOWER:
@@ -2102,6 +2150,7 @@ static IMAPSearchKey* search_make_key(MatcherProp* match, gboolean* is_all)
                case MATCHCRITERIA_NOT_MESSAGE: invert = TRUE; matchertype = MATCHCRITERIA_MESSAGE; break;
                case MATCHCRITERIA_NOT_BODY_PART: invert = TRUE; matchertype = MATCHCRITERIA_BODY_PART; break;
                case MATCHCRITERIA_NOT_TO_AND_NOT_CC: invert = TRUE; matchertype = MATCHCRITERIA_TO_OR_CC; break;
+               case MATCHCRITERIA_NOT_MESSAGEID: invert = TRUE; matchertype = MATCHCRITERIA_MESSAGEID; break;
                case MATCHCRITERIA_NOT_INREPLYTO: invert = TRUE; matchertype = MATCHCRITERIA_INREPLYTO; break;
                }
 
@@ -2128,6 +2177,10 @@ static IMAPSearchKey* search_make_key(MatcherProp* match, gboolean* is_all)
                        result = imap_search_new(IMAP_SEARCH_CRITERIA_TAG, NULL, RTAG_JUNK, 0);
                        break;
 
+               case MATCHCRITERIA_MESSAGEID:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_HEADER, "Message-ID", match->expr, 0);
+                       break;
+
                case MATCHCRITERIA_INREPLYTO:
                        result = imap_search_new(IMAP_SEARCH_CRITERIA_HEADER, "In-Reply-To", match->expr, 0);
                        break;
@@ -2494,7 +2547,7 @@ static gint imap_do_remove_msgs(Folder *folder, FolderItem *dest,
                        return ok;
                }
        } /* else we just need to expunge */
-       ok = imap_cmd_expunge(session, folder->account->imap_use_trash);
+       ok = imap_cmd_expunge(session);
        if (ok != MAILIMAP_NO_ERROR) {
                log_warning(LOG_PROTOCOL, _("can't expunge\n"));
                g_free(destdir);
@@ -2975,12 +3028,12 @@ static FolderItem *imap_create_special_folder(Folder *folder,
        new_item = imap_create_folder(folder, item, name);
 
        if (!new_item) {
-               g_warning("Can't create '%s'\n", name);
+               g_warning("Can't create '%s'", name);
                if (!folder->inbox) return NULL;
 
                new_item = imap_create_folder(folder, folder->inbox, name);
                if (!new_item)
-                       g_warning("Can't create '%s' under INBOX\n", name);
+                       g_warning("Can't create '%s' under INBOX", name);
                else
                        new_item->stype = stype;
        } else
@@ -2989,23 +3042,6 @@ static FolderItem *imap_create_special_folder(Folder *folder,
        return new_item;
 }
 
-static gchar *imap_folder_get_path(Folder *folder)
-{
-       gchar *folder_path;
-
-       g_return_val_if_fail(folder != NULL, NULL);
-        g_return_val_if_fail(folder->account != NULL, NULL);
-
-        folder_path = g_strconcat(get_imap_cache_dir(),
-                                  G_DIR_SEPARATOR_S,
-                                  folder->account->recv_server,
-                                  G_DIR_SEPARATOR_S,
-                                  folder->account->userid,
-                                  NULL);
-
-       return folder_path;
-}
-
 #ifdef G_OS_WIN32
 static gchar *imap_encode_unsafe_chars(const gchar *str)
 {
@@ -3015,7 +3051,7 @@ static gchar *imap_encode_unsafe_chars(const gchar *str)
                return NULL;
        ret = g_malloc(3*strlen(str)+1);
        o_ret = ret;
-       for (i = str; *i; i++) {
+       for (i = (gchar *)str; *i; i++) {
                switch(*i) {
                        case ':':
                        case '|':
@@ -3042,8 +3078,9 @@ static gchar *imap_item_get_path(Folder *folder, FolderItem *item)
        gchar *item_path = NULL;
        
        g_return_val_if_fail(folder != NULL, NULL);
+       g_return_val_if_fail(folder->account != NULL, NULL);
        g_return_val_if_fail(item != NULL, NULL);
-       folder_path = imap_folder_get_path(folder);
+       folder_path = prefs_account_cache_dir(folder->account, FALSE);
 
        g_return_val_if_fail(folder_path != NULL, NULL);
 
@@ -3262,8 +3299,8 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
 
        if (strchr(name, imap_get_path_separator(session, IMAP_FOLDER(folder), item->path, &ok)) != NULL ||
                is_fatal(ok)) {
-               g_warning(_("New folder name must not contain the namespace "
-                           "path separator"));
+               g_warning("New folder name must not contain the namespace "
+                           "path separator");
                return -1;
        }
 
@@ -3290,9 +3327,9 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
                g_free(real_oldpath);
                return -1;
        }
-       if (strchr(item->path, G_DIR_SEPARATOR)) {
+       if (strchr(item->path, '/')) {
                dirpath = g_path_get_dirname(item->path);
-               newpath = g_strconcat(dirpath, G_DIR_SEPARATOR_S, name, NULL);
+               newpath = g_strconcat(dirpath, "/", name, NULL);
                g_free(dirpath);
        } else
                newpath = g_strdup(name);
@@ -3423,7 +3460,7 @@ static gint imap_remove_folder_real(Folder *folder, FolderItem *item)
        g_free(path);
        cache_dir = folder_item_get_path(item);
        if (is_dir_exist(cache_dir) && remove_dir_recursive(cache_dir) < 0)
-               g_warning("can't remove directory '%s'\n", cache_dir);
+               g_warning("can't remove directory '%s'", cache_dir);
        g_free(cache_dir);
        folder_item_remove(item);
        return 0;
@@ -3658,7 +3695,7 @@ static void imap_delete_all_cached_messages(FolderItem *item)
                remove_all_numbered_files(dir);
        g_free(dir);
 
-       debug_print("done.\n");
+       debug_print("Deleting all cached messages done.\n");
 }
 
 gchar imap_get_path_separator_for_item(FolderItem *item)
@@ -3677,7 +3714,7 @@ gchar imap_get_path_separator_for_item(FolderItem *item)
 
        imap_folder = IMAP_FOLDER(folder);
 
-       debug_print("getting session...");
+       debug_print("getting session...\n");
        session = imap_session_get(FOLDER(folder));
        result = imap_get_path_separator(session, imap_folder, item->path, &ok);
        return result;
@@ -4010,7 +4047,7 @@ static gint imap_status(IMAPSession *session, IMAPFolder *folder,
        mailimap_mailbox_data_status_free(data_status);
        
        if (got_values != mask) {
-               g_warning("status: incomplete values received (%d)\n", got_values);
+               g_warning("status: incomplete values received (%d)", got_values);
        }
        return MAILIMAP_NO_ERROR;
 }
@@ -4030,14 +4067,14 @@ static gint imap_cmd_login(IMAPSession *session,
        int r;
        gint ok;
 
-       if (!strcmp(type, "LOGIN") && imap_has_capability(session, "LOGINDISABLED")) {
+       if (!strcmp(type, "plaintext") && imap_has_capability(session, "LOGINDISABLED")) {
                gint ok = MAILIMAP_ERROR_BAD_STATE;
                if (imap_has_capability(session, "STARTTLS")) {
 #ifdef USE_GNUTLS
-                       log_warning(LOG_PROTOCOL, _("Server requires TLS to log in.\n"));
+                       log_warning(LOG_PROTOCOL, _("Server requires STARTTLS to log in.\n"));
                        ok = imap_cmd_starttls(session);
                        if (ok != MAILIMAP_NO_ERROR) {
-                               log_warning(LOG_PROTOCOL, _("Can't start TLS session.\n"));
+                               log_warning(LOG_PROTOCOL, _("Can't start STARTTLS session.\n"));
                                return ok;
                        } else {
                                /* refresh capas */
@@ -4050,8 +4087,8 @@ static gint imap_cmd_login(IMAPSession *session,
                        }
 #else          
                        log_error(LOG_PROTOCOL, _("Connection to %s failed: "
-                                       "server requires TLS, but Claws Mail "
-                                       "has been compiled without OpenSSL "
+                                       "server requires STARTTLS, but Claws Mail "
+                                       "has been compiled without STARTTLS "
                                        "support.\n"),
                                        SESSION(session)->server);
                        return MAILIMAP_ERROR_LOGIN;
@@ -4062,18 +4099,18 @@ static gint imap_cmd_login(IMAPSession *session,
                }
        }
 
-       log_print(LOG_PROTOCOL, "IMAP4> Logging %s to %s using %s\n", 
+       log_print(LOG_PROTOCOL, "IMAP> Logging %s to %s using %s\n", 
                        user,
                        SESSION(session)->server,
                        type);
        r = imap_threaded_login(session->folder, user, pass, type);
        if (r != MAILIMAP_NO_ERROR) {
                imap_handle_error(SESSION(session), NULL, r);
-               log_print(LOG_PROTOCOL, "IMAP4< Error logging in to %s\n",
+               log_print(LOG_PROTOCOL, "IMAP< Error logging in to %s\n",
                                SESSION(session)->server);
                ok = r;
        } else {
-               log_print(LOG_PROTOCOL, "IMAP4< Login to %s successful\n",
+               log_print(LOG_PROTOCOL, "IMAP< Login to %s successful\n",
                                SESSION(session)->server);
                ok = MAILIMAP_NO_ERROR;
        }
@@ -4126,7 +4163,7 @@ static gint imap_cmd_starttls(IMAPSession *session)
                SESSION(session)->server, SESSION(session)->port);
        if (r != MAILIMAP_NO_ERROR) {
                imap_handle_error(SESSION(session), NULL, r);
-               debug_print("starttls err %d\n", r);
+               debug_print("STARTTLS err %d\n", r);
                return r;
        }
        return MAILIMAP_NO_ERROR;
@@ -4363,13 +4400,10 @@ static gint imap_cmd_store(IMAPSession *session,
        return MAILIMAP_NO_ERROR;
 }
 
-static gint imap_cmd_expunge(IMAPSession *session, gboolean do_expunge)
+static gint imap_cmd_expunge(IMAPSession *session)
 {
        int r;
        
-       if (!do_expunge)
-               return MAILIMAP_NO_ERROR;
-
        if (prefs_common.work_offline && 
            !inc_offline_should_override(FALSE,
                _("Claws Mail needs network access in order "
@@ -4392,7 +4426,7 @@ gint imap_expunge(Folder *folder, FolderItem *item)
        if (session == NULL)
                return -1;
        
-       return imap_cmd_expunge(session, TRUE);
+       return imap_cmd_expunge(session);
 }
 
 static void imap_path_separator_subst(gchar *str, gchar separator)
@@ -4426,16 +4460,16 @@ static gboolean imap_rename_folder_func(GNode *node, gpointer data)
        gint ok = MAILIMAP_NO_ERROR;
        oldpathlen = strlen(oldpath);
        if (strncmp(oldpath, item->path, oldpathlen) != 0) {
-               g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
+               g_warning("path doesn't match: %s, %s", oldpath, item->path);
                return TRUE;
        }
 
        base = item->path + oldpathlen;
-       while (*base == G_DIR_SEPARATOR) base++;
+       while (*base == '/') base++;
        if (*base == '\0')
                new_itempath = g_strdup(newpath);
        else
-               new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
+               new_itempath = g_strconcat(newpath, "/", base,
                                           NULL);
 
        real_oldpath = imap_get_real_path(session, IMAP_FOLDER(item->folder), item->path, &ok);
@@ -4513,8 +4547,6 @@ static gint get_list_of_uids(IMAPSession *session, Folder *folder, IMAPFolderIte
        }
        g_slist_free(uidlist);
 
-       unlock_session(session); /* locked from imap_get_num_list */
-
        return nummsgs;
 
 }
@@ -4569,11 +4601,10 @@ gint imap_get_num_list(Folder *folder, FolderItem *_item, GSList **msgnum_list,
        session = imap_session_get(folder);
        g_return_val_if_fail(session != NULL, -1);
 
-       lock_session(session); /* unlocked by get_list_of_uids */
+       lock_session(session);
        if (FOLDER_ITEM(item)->path) 
-               statusbar_print_all(_("Scanning folder %s%c%s..."),
+               statusbar_print_all(_("Scanning folder %s/%s..."),
                                      FOLDER_ITEM(item)->folder->name, 
-                                     G_DIR_SEPARATOR,
                                      FOLDER_ITEM(item)->path);
        else
                statusbar_print_all(_("Scanning folder %s..."),
@@ -4594,6 +4625,9 @@ gint imap_get_num_list(Folder *folder, FolderItem *_item, GSList **msgnum_list,
        }
 
        nummsgs = get_list_of_uids(session, folder, item, &uidlist);
+
+       unlock_session(session);
+
        /* session could be broken now, in case of fatal error */
 
        debug_print("get_num_list: got %d msgs\n", nummsgs);
@@ -4812,14 +4846,12 @@ gboolean imap_scan_required(Folder *folder, FolderItem *_item)
                        return FALSE;
                }
                
-               debug_print("exists %d, item->item.total_msgs %d\n", 
-                       exists, item->item.total_msgs);
-               debug_print("unseen %d, item->item.unread_msgs %d\n", 
-                       unseen, item->item.unread_msgs);
-               debug_print("uid_next %d, item->uid_next %d\n", 
-                       uid_next, item->uid_next);
-               debug_print("uid_val %d, item->item.mtime %d\n", 
-                       uid_val, item->item.mtime);
+               debug_print("exists %d, item->item.total_msgs %d\n"
+                           "\tunseen %d, item->item.unread_msgs %d\n"
+                           "\tuid_next %d, item->uid_next %d\n"
+                           "\tuid_val %d, item->item.mtime %ld\n",
+                           exists, item->item.total_msgs, unseen, item->item.unread_msgs,
+                           uid_next, item->uid_next, uid_val, (long)(item->item.mtime));
                if (exists != item->item.total_msgs
                    || unseen != item->item.unread_msgs 
                    || uid_next != item->uid_next
@@ -4990,7 +5022,7 @@ static gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
                return ok;
        }
 
-       ok = imap_cmd_expunge(session, folder->account->imap_use_trash);
+       ok = imap_cmd_expunge(session);
 
        if (ok != MAILIMAP_NO_ERROR) {
                log_warning(LOG_PROTOCOL, _("can't expunge\n"));
@@ -5375,7 +5407,7 @@ static gint imap_get_flags(Folder *folder, FolderItem *item,
                data->full_search = TRUE;
        
        for (cur = tmp; cur; cur = cur->next)
-               procmsg_msginfo_free((MsgInfo *)cur->data);
+               procmsg_msginfo_free((MsgInfo **)&(cur->data));
        
        g_slist_free(tmp);
 
@@ -5415,7 +5447,7 @@ static gboolean process_flags(gpointer key, gpointer value, gpointer user_data)
                ok = imap_set_message_flags(session, IMAP_FOLDER_ITEM(item),
                        data->msglist, flags_value, NULL, flags_set);
        } else {
-               g_warning("can't select mailbox %s\n", item->path);
+               g_warning("can't select mailbox %s", item->path);
        }
 
        if (!is_fatal(ok))
@@ -5458,7 +5490,7 @@ static gboolean process_tags(gpointer key, gpointer value, gpointer user_data)
                ok = imap_set_message_flags(session, IMAP_FOLDER_ITEM(item),
                        data->msglist, 0, &list, tags_set);
        } else {
-               g_warning("can't select mailbox %s\n", item->path);
+               g_warning("can't select mailbox %s", item->path);
        }
 
        if (!is_fatal(ok))
@@ -5634,7 +5666,9 @@ static GSList * imap_list_from_lep(IMAPFolder * folder,
                        }
 
                        if (!all && dup_name[strlen(dup_name)-1] == '/') {
-                               dup_name[strlen(dup_name)-1] = '\0';
+                               g_free(base);
+                               free(dup_name);
+                               continue;
                        }
 
                        loc_name = imap_modified_utf7_to_utf8(base, FALSE);
@@ -5905,11 +5939,8 @@ void imap_disconnect_all(gboolean have_connectivity)
        GList *list;
        gboolean short_timeout;
 #ifdef HAVE_NETWORKMANAGER_SUPPORT
-       GError *error;
-#endif
+       GError *error = NULL;
 
-#ifdef HAVE_NETWORKMANAGER_SUPPORT
-       error = NULL;
        short_timeout = !networkmanager_is_online(&error);
        if(error) {
                short_timeout = TRUE;
@@ -6025,7 +6056,7 @@ static Folder     *imap_folder_new        (const gchar    *name,
                        _("You have one or more IMAP accounts "
                          "defined. However this version of "
                          "Claws Mail has been built without "
-                         "IMAP support; your IMAP account(s) are "
+                         "IMAP support; your IMAP accounts are "
                          "disabled.\n\n"
                          "You probably need to "
                          "install libetpan and recompile "
@@ -6060,7 +6091,7 @@ FolderClass *imap_get_class(void)
        if (imap_class.idstr == NULL) {
                imap_class.type = F_IMAP;
                imap_class.idstr = "imap";
-               imap_class.uistr = "IMAP4";
+               imap_class.uistr = "IMAP";
 
                imap_class.new_folder = imap_folder_new;
                imap_class.create_tree = imap_create_tree;