- Use only one from IMAP authentication methods to prevent login delays (14...

alecpl

2011-02-15 ab0b51a1fef87bcc643c3aaf2e635c811b28ccd8

 program/include/rcube_imap.php

@@ -5,7 +5,7 @@
 | program/include/rcube_imap.php                                        |
 |                                                                       |
 | This file is part of the Roundcube Webmail client                     |
 | Copyright (C) 2005-2010, Roundcube Dev. - Switzerland                 |
 | Copyright (C) 2005-2010, The Roundcube Dev Team                       |
 | Licensed under the GNU GPL                                            |
 |                                                                       |
 | PURPOSE:                                                              |
@@ -100,6 +100,16 @@
        'RETURN-PATH',
    );

    const UNKNOWN       = 0;
    const NOPERM        = 1;
    const READONLY      = 2;
    const TRYCREATE     = 3;
    const INUSE         = 4;
    const OVERQUOTA     = 5;
    const ALREADYEXISTS = 6;
    const NONEXISTENT   = 7;
    const CONTACTADMIN  = 8;


    /**
     * Object constructor
@@ -138,6 +148,18 @@

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

        if ($this->options['debug']) {
            $this->conn->setDebug(true, array($this, 'debug_handler'));

            $this->options['ident'] = array(
                'name' => 'Roundcube Webmail',
                'version' => RCMAIL_VERSION,
                'php' => PHP_VERSION,
                'os' => PHP_OS,
                'command' => $_SERVER['REQUEST_URI'],
            );
        }

        $attempt = 0;
        do {
            $data = rcmail::get_instance()->plugins->exec_hook('imap_connect',
@@ -156,21 +178,20 @@
        $this->ssl  = $use_ssl;

        if ($this->conn->connected()) {
            // print trace messages
            if ($this->conn->message && ($this->debug_level & 8)) {
                console($this->conn->message);
            }
            // get namespace and delimiter
            $this->set_env();

            return true;
        }
        // write error log
        else if ($this->conn->error) {
            if ($pass && $user)
            if ($pass && $user) {
                $message = sprintf("Login failed for %s from %s. %s",
                    $user, rcmail_remote_ip(), $this->conn->error);

                raise_error(array('code' => 403, 'type' => 'imap',
                    'file' => __FILE__, 'line' => __LINE__,
                    'message' => $this->conn->error), true, false);
                    'message' => $message), true, false);
            }
        }

        return false;
@@ -185,7 +206,7 @@
     */
    function close()
    {
        $this->conn->close();
        $this->conn->closeConnection();
        $this->write_cache();
    }

@@ -198,11 +219,11 @@
     */
    function reconnect()
    {
        $this->close();
        $this->connect($this->host, $this->user, $this->pass, $this->port, $this->ssl);
        $this->conn->closeConnection();
        $connected = $this->connect($this->host, $this->user, $this->pass, $this->port, $this->ssl);

        // issue SELECT command to restore connection status
        if ($this->mailbox)
        if ($connected && strlen($this->mailbox))
            $this->conn->select($this->mailbox);
    }

@@ -214,7 +235,7 @@
     */
    function get_error_code()
    {
        return ($this->conn) ? $this->conn->errornum : 0;
        return $this->conn->errornum;
    }


@@ -225,7 +246,48 @@
     */
    function get_error_str()
    {
        return ($this->conn) ? $this->conn->error : '';
        return $this->conn->error;
    }


    /**
     * Returns code of last command response
     *
     * @return int Response code
     */
    function get_response_code()
    {
        switch ($this->conn->resultcode) {
            case 'NOPERM':
                return self::NOPERM;
            case 'READ-ONLY':
                return self::READONLY;
            case 'TRYCREATE':
                return self::TRYCREATE;
            case 'INUSE':
                return self::INUSE;
            case 'OVERQUOTA':
                return self::OVERQUOTA;
            case 'ALREADYEXISTS':
                return self::ALREADYEXISTS;
            case 'NONEXISTENT':
                return self::NONEXISTENT;
            case 'CONTACTADMIN':
                return self::CONTACTADMIN;
            default:
                return self::UNKNOWN;
        }
    }


    /**
     * Returns last command response
     *
     * @return string Response
     */
    function get_response_str()
    {
        return $this->conn->result;
    }


@@ -300,9 +362,9 @@
     * @param  string $mailbox Mailbox/Folder name
     * @access public
     */
    function select_mailbox($mailbox)
    function select_mailbox($mailbox=null)
    {
        $mailbox = $this->mod_mailbox($mailbox);
        $mailbox = strlen($mailbox) ? $this->mod_mailbox($mailbox) : $this->mailbox;

        $selected = $this->conn->select($mailbox);

@@ -417,12 +479,12 @@
    {
        $this->threading = false;

        if ($enable) {
            if ($this->get_capability('THREAD=REFS'))
        if ($enable && ($caps = $this->get_capability('THREAD'))) {
            if (in_array('REFS', $caps))
                $this->threading = 'REFS';
            else if ($this->get_capability('THREAD=REFERENCES'))
            else if (in_array('REFERENCES', $caps))
                $this->threading = 'REFERENCES';
            else if ($this->get_capability('THREAD=ORDEREDSUBJECT'))
            else if (in_array('ORDEREDSUBJECT', $caps))
                $this->threading = 'ORDEREDSUBJECT';
        }

@@ -493,56 +555,56 @@
        $imap_shared    = $config->get('imap_ns_shared');
        $imap_delimiter = $config->get('imap_delimiter');

        if ($imap_delimiter) {
            $this->delimiter = $imap_delimiter;
        }

        if (!$this->conn)
        if (!$this->conn->connected())
            return;

        $ns = $this->conn->getNamespace();

        // NAMESPACE supported
        // Set namespaces (NAMESPACE supported)
        if (is_array($ns)) {
            $this->namespace = $ns;

            if (empty($this->delimiter))
                $this->delimiter = $ns['personal'][0][1];
            if (empty($this->delimiter))
                $this->delimiter = $this->conn->getHierarchyDelimiter();
            if (empty($this->delimiter))
                $this->delimiter = '/';
        }
        // not supported, get namespace from config
        else if ($imap_personal !== null || $imap_shared !== null || $imap_other !== null) {
            if (empty($this->delimiter))
                $this->delimiter = $this->conn->getHierarchyDelimiter();
            if (empty($this->delimiter))
                $this->delimiter = '/';

        else {
            $this->namespace = array(
                'personal' => NULL,
                'other'    => NULL,
                'shared'   => NULL,
            );
        }

            if ($imap_personal !== null) {
                foreach ((array)$imap_personal as $dir) {
                    $this->namespace['personal'][] = array($dir, $this->delimiter);
        if ($imap_delimiter) {
            $this->delimiter = $imap_delimiter;
        }
        if (empty($this->delimiter)) {
            $this->delimiter = $this->namespace['personal'][0][1];
        }
        if (empty($this->delimiter)) {
            $this->delimiter = $this->conn->getHierarchyDelimiter();
        }
        if (empty($this->delimiter)) {
            $this->delimiter = '/';
        }

        // Overwrite namespaces
        if ($imap_personal !== null) {
            $this->namespace['personal'] = NULL;
            foreach ((array)$imap_personal as $dir) {
                $this->namespace['personal'][] = array($dir, $this->delimiter);
            }
        }
        if ($imap_other !== null) {
            $this->namespace['other'] = NULL;
            foreach ((array)$imap_other as $dir) {
                if ($dir) {
                    $this->namespace['other'][] = array($dir, $this->delimiter);
                }
            }
            if ($imap_other !== null) {
                foreach ((array)$imap_other as $dir) {
                    if ($dir) {
                        $this->namespace['other'][] = array($dir, $this->delimiter);
                    }
                }
            }
            if ($imap_shared !== null) {
                foreach ((array)$imap_shared as $dir) {
                    if ($dir) {
                        $this->namespace['shared'][] = array($dir, $this->delimiter);
                    }
        }
        if ($imap_shared !== null) {
            $this->namespace['shared'] = NULL;
            foreach ((array)$imap_shared as $dir) {
                if ($dir) {
                    $this->namespace['shared'][] = array($dir, $this->delimiter);
                }
            }
        }
@@ -617,7 +679,7 @@
        }
        // RECENT count is fetched a bit different
        else if ($mode == 'RECENT') {
            $count = $this->conn->checkForRecent($mailbox);
            $count = $this->conn->countRecent($mailbox);
        }
        // use SEARCH for message counting
        else if ($this->skip_deleted) {
@@ -2000,7 +2062,7 @@
                return false;
        }

        $struct = &$this->_structure_part($structure);
        $struct = &$this->_structure_part($structure, 0, '', $headers);
        $struct->headers = get_object_vars($headers);

        // don't trust given content-type
@@ -2132,6 +2194,11 @@
                $struct->charset = $struct->ctype_parameters['charset'];
        }

        // #1487700: workaround for lack of charset in malformed structure
        if (empty($struct->charset) && !empty($mime_headers) && $mime_headers->charset) {
            $struct->charset = $mime_headers->charset;
        }

        // read content encoding
        if (!empty($part[5]) && $part[5]!='NIL') {
            $struct->encoding = strtolower($part[5]);
@@ -2180,7 +2247,11 @@
                $mime_headers = $this->conn->fetchPartHeader(
                    $this->mailbox, $this->_msg_id, false, $struct->mime_id);
            }
            $struct->headers = $this->_parse_headers($mime_headers) + $struct->headers;

            if (is_string($mime_headers))
                $struct->headers = $this->_parse_headers($mime_headers) + $struct->headers;
            else if (is_object($mime_headers))
                $struct->headers = get_object_vars($mime_headers) + $struct->headers;

            // get real content-type of message/rfc822
            if ($struct->mimetype == 'message/rfc822') {
@@ -2376,20 +2447,21 @@

        // TODO: Add caching for message parts

        if (!$part) $part = 'TEXT';
        if (!$part) {
            $part = 'TEXT';
        }

        $body = $this->conn->handlePartBody($this->mailbox, $uid, true, $part,
            $o_part->encoding, $print, $fp);

        if ($fp || $print)
        if ($fp || $print) {
            return true;
        }

        // convert charset (if text or message part)
        if ($body && ($o_part->ctype_primary == 'text' || $o_part->ctype_primary == 'message')) {
            // assume default if no charset specified
            if (empty($o_part->charset) || strtolower($o_part->charset) == 'us-ascii')
                $o_part->charset = $this->default_charset;

        // convert charset (if text or message part) and part's charset is specified
        if ($body && $o_part->charset
            && preg_match('/^(text|message)$/', $o_part->ctype_primary)
        ) {
            $body = rcube_charset_convert($body, $o_part->charset);
        }

@@ -2774,7 +2846,23 @@
        else
            $a_uids = NULL;

        $result = $this->conn->expunge($mailbox, $a_uids);
        // force mailbox selection and check if mailbox is writeable
        // to prevent a situation when CLOSE is executed on closed
        // or EXPUNGE on read-only mailbox
        $result = $this->conn->select($mailbox);
        if (!$result) {
            return false;
        }
        if (!$this->conn->data['READ-WRITE']) {
            $this->conn->setError(rcube_imap_generic::ERROR_READONLY, "Mailbox is read-only");
            return false;
        }

        // CLOSE(+SELECT) should be faster than EXPUNGE
        if (empty($a_uids) || $a_uids == '1:*')
            $result = $this->conn->close();
        else
            $result = $this->conn->expunge($mailbox, $a_uids);

        if ($result && $clear_cache) {
            $this->clear_message_cache($mailbox.'.msg');
@@ -3014,7 +3102,7 @@
    /**
     * Get mailbox size (size of all messages in a mailbox)
     *
     * @param string $name Mailbox name    
     * @param string $name Mailbox name
     * @return int Mailbox size in bytes, False on error
     */
    function get_mailbox_size($name)
@@ -3089,6 +3177,7 @@
     *
     * @param string $mbox_name Mailbox to rename
     * @param string $new_name  New mailbox name
     *
     * @return boolean True on success
     */
    function rename_mailbox($mbox_name, $new_name)
@@ -3098,92 +3187,87 @@
        // make absolute path
        $mailbox  = $this->mod_mailbox($mbox_name);
        $abs_name = $this->mod_mailbox($new_name);
        $delm     = $this->get_hierarchy_delimiter();

        // check if mailbox is subscribed
        $a_subscribed = $this->_list_mailboxes();
        $subscribed   = in_array($mailbox, $a_subscribed);

        // unsubscribe folder
        if ($subscribed)
            $this->conn->unsubscribe($mailbox);
        // get list of subscribed folders
        if ((strpos($mailbox, '%') === false) && (strpos($mailbox, '*') === false)) {
            $a_subscribed = $this->_list_mailboxes('', $mbox_name . $delm . '*');
            $subscribed   = $this->mailbox_exists($mbox_name, true);
        }
        else {
            $a_subscribed = $this->_list_mailboxes();
            $subscribed   = in_array($mailbox, $a_subscribed);
        }

        if (strlen($abs_name))
            $result = $this->conn->renameFolder($mailbox, $abs_name);

        if ($result) {
            $delm = $this->get_hierarchy_delimiter();
            // unsubscribe the old folder, subscribe the new one
            if ($subscribed) {
                $this->conn->unsubscribe($mailbox);
                $this->conn->subscribe($abs_name);
            }

            // check if mailbox children are subscribed
            foreach ($a_subscribed as $c_subscribed)
            foreach ($a_subscribed as $c_subscribed) {
                if (preg_match('/^'.preg_quote($mailbox.$delm, '/').'/', $c_subscribed)) {
                    $this->conn->unsubscribe($c_subscribed);
                    $this->conn->subscribe(preg_replace('/^'.preg_quote($mailbox, '/').'/',
                        $abs_name, $c_subscribed));
                }
            }

            // clear cache
            $this->clear_message_cache($mailbox.'.msg');
            $this->clear_cache('mailboxes');
        }

        // try to subscribe it
        if ($result && $subscribed)
            $this->conn->subscribe($abs_name);

        return $result;
    }


    /**
     * Remove mailboxes from server
     * Remove mailbox from server
     *
     * @param string|array $mbox_name Mailbox name(s) string/array
     * @param string $mbox_name Mailbox name
     *
     * @return boolean True on success
     */
    function delete_mailbox($mbox_name)
    {
        $deleted = false;
        $result  = false;
        $mailbox = $this->mod_mailbox($mbox_name);
        $delm    = $this->get_hierarchy_delimiter();

        if (is_array($mbox_name))
            $a_mboxes = $mbox_name;
        else if (is_string($mbox_name) && strlen($mbox_name))
            $a_mboxes = explode(',', $mbox_name);
        // get list of folders
        if ((strpos($mailbox, '%') === false) && (strpos($mailbox, '*') === false))
            $sub_mboxes = $this->list_unsubscribed('', $mailbox . $delm . '*');
        else
            $sub_mboxes = $this->list_unsubscribed();

        if (is_array($a_mboxes)) {
            $delimiter = $this->get_hierarchy_delimiter();
        
            foreach ($a_mboxes as $mbox_name) {
                $mailbox = $this->mod_mailbox($mbox_name);
                $sub_mboxes = $this->conn->listMailboxes('', $mbox_name . $delimiter . '*');
        // send delete command to server
        $result = $this->conn->deleteFolder($mailbox);

                // unsubscribe mailbox before deleting
                $this->conn->unsubscribe($mailbox);
        if ($result) {
            // unsubscribe mailbox
            $this->conn->unsubscribe($mailbox);

                // send delete command to server
                $result = $this->conn->deleteFolder($mailbox);
                if ($result) {
                    $deleted = true;
                    $this->clear_message_cache($mailbox.'.msg');
               }

                foreach ($sub_mboxes as $c_mbox) {
                    if ($c_mbox != 'INBOX') {
                        $this->conn->unsubscribe($c_mbox);
                        $result = $this->conn->deleteFolder($c_mbox);
                        if ($result) {
                            $deleted = true;
                           $this->clear_message_cache($c_mbox.'.msg');
                        }
            foreach ($sub_mboxes as $c_mbox) {
                if (preg_match('/^'.preg_quote($mailbox.$delm, '/').'/', $c_mbox)) {
                    $this->conn->unsubscribe($c_mbox);
                    if ($this->conn->deleteFolder($c_mbox)) {
                       $this->clear_message_cache($c_mbox.'.msg');
                    }
                }
            }

            // clear mailbox-related cache
            $this->clear_message_cache($mailbox.'.msg');
            $this->clear_cache('mailboxes');
        }

        // clear mailboxlist cache
        if ($deleted)
            $this->clear_cache('mailboxes');

        return $deleted;
        return $result;
    }


@@ -3252,32 +3336,26 @@
            // If folder contains namespace prefix, don't modify it
            if (is_array($this->namespace['shared'])) {
                foreach ($this->namespace['shared'] as $ns) {
                    foreach ((array)$ns as $root) {
                        if ($root[0] && strpos($mbox_name, $root[0]) === 0) {
                            return $mbox_name;
                        }
                    if ($ns[0] && strpos($mbox_name, $ns[0]) === 0) {
                        return $mbox_name;
                    }
                }
            }
            if (is_array($this->namespace['other'])) {
                foreach ($this->namespace['other'] as $ns) {
                    foreach ((array)$ns as $root) {
                        if ($root[0] && strpos($mbox_name, $root[0]) === 0) {
                            return $mbox_name;
                        }
                    if ($ns[0] && strpos($mbox_name, $ns[0]) === 0) {
                        return $mbox_name;
                    }
                }
            }
            if (is_array($this->namespace['personal'])) {
                foreach ($this->namespace['personal'] as $ns) {
                    foreach ((array)$ns as $root) {
                        if ($root[0] && strpos($mbox_name, $root[0]) === 0) {
                            return $mbox_name;
                        }
                    if ($ns[0] && strpos($mbox_name, $ns[0]) === 0) {
                        return $mbox_name;
                    }
                }
                // Add prefix if first personal namespace is non-empty
                if ($this->namespace['personal'][0][0]) {
                if ($mbox_name != 'INBOX' && $this->namespace['personal'][0][0]) {
                    return $this->namespace['personal'][0][0].$mbox_name;
                }
            }
@@ -4631,10 +4709,13 @@
    private function _parse_address_list($str, $decode=true)
    {
        // remove any newlines and carriage returns before
        $a = rcube_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
        $str = preg_replace('/\r?\n(\s|\t)?/', ' ', $str);

        // extract list items, remove comments
        $str = self::explode_header_string(',;', $str, true);
        $result = array();

        foreach ($a as $key => $val) {
        foreach ($str as $key => $val) {
            $name    = '';
            $address = '';
            $val     = trim($val);
@@ -4674,6 +4755,91 @@
        return $result;
    }


    /**
     * Explodes header (e.g. address-list) string into array of strings
     * using specified separator characters with proper handling
     * of quoted-strings and comments (RFC2822)
     *
     * @param string $separator       String containing separator characters
     * @param string $str             Header string
     * @param bool   $remove_comments Enable to remove comments
     *
     * @return array Header items
     */
    static function explode_header_string($separator, $str, $remove_comments=false)
    {
        $length  = strlen($str);
        $result  = array();
        $quoted  = false;
        $comment = 0;
        $out     = '';

        for ($i=0; $i<$length; $i++) {
            // we're inside a quoted string
            if ($quoted) {
                if ($str[$i] == '"') {
                    $quoted = false;
                }
                else if ($str[$i] == '\\') {
                    if ($comment <= 0) {
                        $out .= '\\';
                    }
                    $i++;
                }
            }
            // we're inside a comment string
            else if ($comment > 0) {
                    if ($str[$i] == ')') {
                        $comment--;
                    }
                    else if ($str[$i] == '(') {
                        $comment++;
                    }
                    else if ($str[$i] == '\\') {
                        $i++;
                    }
                    continue;
            }
            // separator, add to result array
            else if (strpos($separator, $str[$i]) !== false) {
                    if ($out) {
                        $result[] = $out;
                    }
                    $out = '';
                    continue;
            }
            // start of quoted string
            else if ($str[$i] == '"') {
                    $quoted = true;
            }
            // start of comment
            else if ($remove_comments && $str[$i] == '(') {
                    $comment++;
            }

            if ($comment <= 0) {
                $out .= $str[$i];
            }
        }

        if ($out && $comment <= 0) {
            $result[] = $out;
        }

        return $result;
    }


    /**
     * This is our own debug handler for the IMAP connection
     * @access public
     */
    public function debug_handler(&$imap, $message)
    {
        write_log('imap', $message);
    }

}  // end class rcube_imap