Backporting r5092, r5095, r5096 to release-0.6 branch

thomascube

2011-08-19 d43d4bcf44a1feae4274e51f41ce9625147f9f85

 program/include/rcube_imap.php

@@ -3083,20 +3083,36 @@
                $a_folders = $this->conn->listMailboxes($root, $name,
                    NULL, array('SUBSCRIBED'));

                // remove non-existent folders
                if (is_array($a_folders)) {
                // unsubscribe non-existent folders, remove from the list
                if (is_array($a_folders) && $name == '*') {
                    foreach ($a_folders as $idx => $folder) {
                        if ($this->conn->data['LIST'] && ($opts = $this->conn->data['LIST'][$folder])
                            && in_array('\\NonExistent', $opts)
                        ) {
                            $this->conn->unsubscribe($folder);
                            unset($a_folders[$idx]);
                        } 
                        }
                    }
                }
            }
            // retrieve list of folders from IMAP server using LSUB
            else {
                $a_folders = $this->conn->listSubscribed($root, $name);

                // unsubscribe non-existent folders, remove from the list
                if (is_array($a_folders) && $name == '*') {
                    foreach ($a_folders as $idx => $folder) {
                        if ($this->conn->data['LIST'] && ($opts = $this->conn->data['LIST'][$folder])
                            && in_array('\\Noselect', $opts)
                        ) {
                            // Some servers returns \Noselect for existing folders
                            if (!$this->mailbox_exists($folder)) {
                                $this->conn->unsubscribe($folder);
                                unset($a_folders[$idx]);
                            }
                        }
                    }
                }
            }
        }

@@ -3497,6 +3513,10 @@
     */
    function mailbox_info($mailbox)
    {
        if ($this->icache['options'] && $this->icache['options']['name'] == $mailbox) {
            return $this->icache['options'];
        }

        $acl       = $this->get_capability('ACL');
        $namespace = $this->get_namespace();
        $options   = array();
@@ -3558,6 +3578,8 @@
            $options['norename'] = $options['is_root'] || $options['namespace'] != 'personal';
        }

        $this->icache['options'] = $options;

        return $options;
    }