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< ? php
//
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Author: Damian Alejandro Fernandez Sosa <damlists@cnba.uba.ar> |
// +----------------------------------------------------------------------+
require_once 'Net/Socket.php' ;
/**
* Provides an implementation of the IMAP protocol using PEAR ' s
* Net_Socket :: class .
*
* @ package Net_IMAP / Protocol
* @ author Damian Alejandro Fernandez Sosa < damlists @ cnba . uba . ar >
*/
class Net_IMAPProtocol {
/**
* The auth methods this class support
* @ var array
*/
var $supportedAuthMethods = array ( 'DIGEST-MD5' , 'CRAM-MD5' , 'LOGIN' , 'PLAIN' );
/**
* The auth methods this class support
* @ var array
*/
var $supportedSASLAuthMethods = array ( 'DIGEST-MD5' , 'CRAM-MD5' );
/**
* _serverAuthMethods
* @ var boolean
*/
var $_serverAuthMethods = null ;
/**
* The the current mailbox
* @ var string
*/
var $currentMailbox = " INBOX " ;
/**
* The socket resource being used to connect to the IMAP server .
* @ var resource
*/
var $_socket = null ;
/**
* The timeout for the connection to the IMAP server .
* @ var int
*/
var $_timeout = null ;
/**
* The options for SSL / TLS connection
* ( see documentation for stream_context_create )
* @ var array
*/
var $_streamContextOptions = null ;
/**
* To allow class debuging
* @ var boolean
*/
var $_debug = false ;
var $dbgDialog = '' ;
/**
* Print error messages
* @ var boolean
*/
var $_printErrors = false ;
/**
* Command Number
* @ var int
*/
var $_cmd_counter = 1 ;
/**
* Command Number for IMAP commands
* @ var int
*/
var $_lastCmdID = 1 ;
/**
* Command Number
* @ var boolean
*/
var $_unParsedReturn = false ;
/**
* _connected : checks if there is a connection made to a imap server or not
* @ var boolean
*/
var $_connected = false ;
/**
* Capabilities
* @ var boolean
*/
var $_serverSupportedCapabilities = null ;
/**
* Use UTF - 7 funcionallity
* @ var boolean
*/
var $_useUTF_7 = true ;
/**
* Constructor
*
* Instantiates a new Net_IMAP object .
*
* @ since 1.0
*/
function Net_IMAPProtocol ()
{
$this -> _socket = new Net_Socket ();
/*
* Include the Auth_SASL package . If the package is not available ,
* we disable the authentication methods that depend upon it .
*/
if (( @ include_once 'Auth/SASL.php' ) == false ) {
foreach ( $this -> supportedSASLAuthMethods as $SASLMethod ){
$pos = array_search ( $SASLMethod , $this -> supportedAuthMethods );
unset ( $this -> supportedAuthMethods [ $pos ]);
}
}
}
/**
* Attempt to connect to the IMAP server .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdConnect ( $host = " localhost " , $port = 143 )
{
if ( $this -> _connected ){
return new PEAR_Error ( 'already connected, logout first!' );
}
if ( PEAR :: isError ( $error = $this -> _socket -> connect ( $host , $port , null , $this -> _timeout , $this -> _streamContextOptions ))) {
return $error ;
}
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$rv = $this -> _getRawResponse ();
if ( PEAR :: isError ( $rv )) {
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return new PEAR_Error ( 'unable to open socket' );
}
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$rv = trim ( $rv );
//error_log(__METHOD__.__LINE__.'#'.$rv.'#');
// if we do not use the standard ports, we expect to see imap with the server greeting
if ( empty ( $rv ) || ( ! ( $port == 143 || $port == 993 ) && stripos ( $rv , 'imap' ) === false )) return new PEAR_Error ( " No IMAP response from $host at port $port . Response was: " . $rv );
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$this -> _connected = true ;
return true ;
}
/**
* get the cmd ID
*
* @ return string Returns the CmdID and increment the counter
*
* @ access private
* @ since 1.0
*/
function _getCmdId ()
{
$this -> _lastCmdID = " A000 " . $this -> _cmd_counter ;
$this -> _cmd_counter ++ ;
return $this -> _lastCmdID ;
}
/**
* get the last cmd ID
*
* @ return string Returns the last cmdId
*
* @ access public
* @ since 1.0
*/
function getLastCmdId ()
{
return $this -> _lastCmdID ;
}
/**
* get current mailbox name
*
* @ return string Returns the current mailbox
*
* @ access public
* @ since 1.0
*/
function getCurrentMailbox ()
{
return $this -> currentMailbox ;
}
/**
* Sets the debuging information on or off
*
* @ param boolean True or false
*
* @ return nothing
* @ access public
* @ since 1.0
*/
function setDebug ( $debug = true )
{
$this -> _debug = $debug ;
}
function getDebugDialog ()
{
return $this -> dbgDialog ;
}
/**
* Sets printed output of errors on or of
*
* @ param boolean true or false
*
* @ return nothing
* @ access public
* @ since 1.1
*/
function setPrintErrors ( $printErrors = true )
{
$this -> _printErrors = $printErrors ;
}
/**
* Send the given string of data to the server .
*
* @ param string $data The string of data to send .
*
* @ return mixed True on success or a PEAR_Error object on failure .
*
* @ access private
* @ since 1.0
*/
function _send ( $data )
{
if ( $this -> _socket -> eof () ){
return new PEAR_Error ( 'Failed to write to socket: (connection lost!) ' );
}
if ( PEAR :: isError ( $error = $this -> _socket -> write ( $data ) ) ) {
return new PEAR_Error ( 'Failed to write to socket: ' .
$error -> getMessage () );
}
if ( $this -> _debug ){
// C: means this data was sent by the client (this class)
echo " C: $data " ;
$this -> dbgDialog .= " C: $data " ;
}
return true ;
}
/**
* Receive the given string of data from the server .
*
* @ return mixed a line of response on success or a PEAR_Error object on failure .
*
* @ access private
* @ since 1.0
*/
function _recvLn ()
{
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//if (PEAR::isError( $this->lastline = $this->_socket->gets( 8192 ) ) ) {
$this -> lastline = $this -> _socket -> gets ( 8192 );
if ( ! ( is_string ( $this -> lastline ) || is_numeric ( $this -> lastline )) && ( $this -> lastline instanceof PEAR_Error ) ) {
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return new PEAR_Error ( 'Failed to write to socket: ' .
$this -> lastline -> getMessage () );
}
if ( $this -> _debug ){
// S: means this data was sent by the IMAP Server
echo " S: " . $this -> lastline . " " ;
$this -> dbgDialog .= " S: " . $this -> lastline . " " ;
}
if ( $this -> lastline == '' ){
return new PEAR_Error ( 'Failed to receive from the socket: ' );
}
return $this -> lastline ;
}
/**
* Send a command to the server with an optional string of arguments .
* A carriage return / linefeed ( CRLF ) sequence will be appended to each
* command string before it is sent to the IMAP server .
*
* @ param string $commandId The IMAP cmdID to send to the server .
* @ param string $command The IMAP command to send to the server .
* @ param string $args A string of optional arguments to append
* to the command .
*
* @ return mixed The result of the _send () call .
*
* @ access private
* @ since 1.0
*/
function _putCMD ( $commandId , $command , $args = '' )
{
if ( ! empty ( $args ) ) {
return $this -> _send ( $commandId . " " . $command . " " . $args . " \r \n " );
}
return $this -> _send ( $commandId . " " . $command . " \r \n " );
}
/**
* Get a response from the server with an optional string of commandID .
* A carriage return / linefeed ( CRLF ) sequence will be appended to each
* command string before it is sent to the IMAP server .
*
* @ param string $commandid The IMAP commandid retrive from the server .
*
* @ return string The result response .
*
* @ access private
*/
function _getRawResponse ( $commandId = '*' )
{
$arguments = '' ;
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while ( $a = $this -> _recvLn () ) {
if ( ! ( is_string ( $a ) || is_numeric ( $a )) && ( $a instanceof PEAR_Error )) return $arguments ;
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$reply_code = strtok ( $this -> lastline , ' ' );
$arguments .= $this -> lastline ;
if ( ! ( strcmp ( $commandId , $reply_code ) ) ) {
return $arguments ;
}
}
return $arguments ;
}
/**
* get the " returning of the unparsed response " feature status
*
* @ return boolean return if the unparsed response is returned or not
*
* @ access public
* @ since 1.0
*
*/
function getUnparsedResponse ()
{
return $this -> _unParsedReturn ;
}
/**
* set the options for a SSL / TLS connection
* ( see documentation for stream_context_create )
*
* @ param array $options the options for the SSL / TLS connection
* @ return nothing
*
* @ access public
* @ since 1.1
*/
function setStreamContextOptions ( $options )
{
$this -> _streamContextOptions = $options ;
}
/**
* set the the timeout for the connection to the IMAP server .
*
* @ param int $timeout the timeout
* @ return nothing
*
* @ access public
* @ since 1.1
*/
function setTimeout ( $timeout )
{
$this -> _timeout = $timeout ;
}
/**
* set the " returning of the unparsed response " feature on or off
*
* @ param boolean $status : true : feature is on
* @ return nothing
*
* @ access public
* @ since 1.0
*/
function setUnparsedResponse ( $status )
{
$this -> _unParsedReturn = $status ;
}
/**
* Attempt to login to the iMAP server .
*
* @ param string The userid to authenticate as .
* @ param string The password to authenticate with .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdLogin ( $uid , $pwd )
{
$param = " \" $uid\ " \ " $pwd\ " " ;
return $this -> _genericCommand ( 'LOGIN' , $param );
}
/**
* Attempt to authenticate to the iMAP server .
* @ param string The userid to authenticate as .
* @ param string The password to authenticate with .
* @ param string The cmdID .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdAuthenticate ( $uid , $pwd , $userMethod = null )
{
if ( ! $this -> _connected ){
return new PEAR_Error ( 'not connected!' );
}
$cmdid = $this -> _getCmdId ();
if ( PEAR :: isError ( $method = $this -> _getBestAuthMethod ( $userMethod ) ) ) {
return $method ;
}
switch ( $method ) {
case 'DIGEST-MD5' :
$result = $this -> _authDigest_MD5 ( $uid , $pwd , $cmdid );
break ;
case 'CRAM-MD5' :
$result = $this -> _authCRAM_MD5 ( $uid , $pwd , $cmdid );
break ;
case 'LOGIN' :
$result = $this -> _authLOGIN ( $uid , $pwd , $cmdid );
break ;
case 'PLAIN' :
$result = $this -> _authPLAIN ( $uid , $pwd , $cmdid );
break ;
default :
$result = new PEAR_Error ( " $method is not a supported authentication method " );
break ;
}
$args = $this -> _getRawResponse ( $cmdid );
return $this -> _genericImapResponseParser ( $args , $cmdid );
}
/* Authenticates the user using the DIGEST - MD5 method .
*
* @ param string The userid to authenticate as .
* @ param string The password to authenticate with .
* @ param string The cmdID .
*
* @ return array Returns an array containing the response
*
* @ access private
* @ since 1.0
*/
function _authDigest_MD5 ( $uid , $pwd , $cmdid )
{
class_exists ( 'Auth_SASL' ) || require_once 'Auth/SASL.php' ;
if ( PEAR :: isError ( $error = $this -> _putCMD ( $cmdid , " AUTHENTICATE " , " DIGEST-MD5 " ) ) ) {
return $error ;
}
if ( PEAR :: isError ( $args = $this -> _recvLn () ) ) {
return $args ;
}
$this -> _getNextToken ( $args , $plus );
$this -> _getNextToken ( $args , $space );
$this -> _getNextToken ( $args , $challenge );
$challenge = base64_decode ( $challenge );
$digest = & Auth_SASL :: factory ( 'digestmd5' );
$auth_str = base64_encode ( $digest -> getResponse ( $uid , $pwd , $challenge , " localhost " , " imap " ));
if ( PEAR :: isError ( $error = $this -> _send ( " $auth_str\r\n " ))) {
return $error ;
}
if ( PEAR :: isError ( $args = $this -> _recvLn () )) {
return $args ;
}
/*
* We don 't use the protocol' s third step because IMAP doesn ' t allow
* subsequent authentication , so we just silently ignore it .
*/
if ( PEAR :: isError ( $error = $this -> _send ( " \r \n " ) ) ) {
return $error ;
}
}
/* Authenticates the user using the CRAM - MD5 method .
*
* @ param string The userid to authenticate as .
* @ param string The password to authenticate with .
* @ param string The cmdID .
*
* @ return array Returns an array containing the response
*
* @ access private
* @ since 1.0
*/
function _authCRAM_MD5 ( $uid , $pwd , $cmdid )
{
class_exists ( 'Auth_SASL' ) || require_once 'Auth/SASL.php' ;
if ( PEAR :: isError ( $error = $this -> _putCMD ( $cmdid , " AUTHENTICATE " , " CRAM-MD5 " ) ) ) {
return $error ;
}
if ( PEAR :: isError ( $args = $this -> _recvLn () ) ) {
return $args ;
}
$this -> _getNextToken ( $args , $plus );
$this -> _getNextToken ( $args , $space );
$this -> _getNextToken ( $args , $challenge );
$challenge = base64_decode ( $challenge );
$cram = & Auth_SASL :: factory ( 'crammd5' );
$auth_str = base64_encode ( $cram -> getResponse ( $uid , $pwd , $challenge ) );
if ( PEAR :: isError ( $error = $this -> _send ( $auth_str . " \r \n " ) ) ) {
return $error ;
}
}
/* Authenticates the user using the LOGIN method .
*
* @ param string The userid to authenticate as .
* @ param string The password to authenticate with .
* @ param string The cmdID .
*
* @ return array Returns an array containing the response
*
* @ access private
* @ since 1.0
*/
function _authLOGIN ( $uid , $pwd , $cmdid )
{
if ( PEAR :: isError ( $error = $this -> _putCMD ( $cmdid , " AUTHENTICATE " , " LOGIN " ))) {
return $error ;
}
if ( PEAR :: isError ( $args = $this -> _recvLn () )) {
return $args ;
}
$this -> _getNextToken ( $args , $plus );
$this -> _getNextToken ( $args , $space );
$this -> _getNextToken ( $args , $challenge );
$challenge = base64_decode ( $challenge );
$auth_str = base64_encode ( " $uid " );
if ( PEAR :: isError ( $error = $this -> _send ( $auth_str . " \r \n " ) ) ) {
return $error ;
}
if ( PEAR :: isError ( $args = $this -> _recvLn () ) ) {
return $args ;
}
$auth_str = base64_encode ( " $pwd " );
if ( PEAR :: isError ( $error = $this -> _send ( $auth_str . " \r \n " ) ) ) {
return $error ;
}
}
/* Authenticates the user using the PLAIN method .
*
* @ param string The userid to authenticate as .
* @ param string The password to authenticate with .
* @ param string The cmdID .
*
* @ return array Returns an array containing the response
*
* @ access private
* @ since 1.0
*/
function _authPLAIN ( $uid , $pwd , $cmdid )
{
if ( PEAR :: isError ( $error = $this -> _putCMD ( $cmdid , " AUTHENTICATE " , " PLAIN " ))) {
return $error ;
}
if ( PEAR :: isError ( $args = $this -> _recvLn () )) {
return $args ;
}
$this -> _getNextToken ( $args , $plus );
$this -> _getNextToken ( $args , $space );
$this -> _getNextToken ( $args , $challenge );
$challenge = base64_decode ( $challenge );
$auth_str = base64_encode ( chr ( 0 ) . $uid . chr ( 0 ) . $pwd );
if ( PEAR :: isError ( $error = $this -> _send ( $auth_str . " \r \n " ) ) ) {
return $error ;
}
}
/**
* Returns the name of the best authentication method that the server
* has advertised .
*
* @ param string if != null , authenticate with this method ( $userMethod ) .
*
* @ return mixed Returns a string containing the name of the best
* supported authentication method or a PEAR_Error object
* if a failure condition is encountered .
* @ access private
* @ since 1.0
*/
function _getBestAuthMethod ( $userMethod = null )
{
$this -> cmdCapability ();
if ( $userMethod != null ){
$methods = array ();
$methods [] = $userMethod ;
} else {
$methods = $this -> supportedAuthMethods ;
}
if ( ( $methods != null ) && ( $this -> _serverAuthMethods != null )){
foreach ( $methods as $method ) {
if ( in_array ( $method , $this -> _serverAuthMethods ) ) {
return $method ;
}
}
$serverMethods = implode ( ',' , $this -> _serverAuthMethods );
$myMethods = implode ( ',' , $this -> supportedAuthMethods );
if ( ! empty ( $userMethod ) && ! in_array ( $userMethod , $this -> _serverAuthMethods ))
{
foreach ( $this -> supportedAuthMethods as $method ) {
if ( in_array ( $method , $this -> _serverAuthMethods ) ) {
if ( $this -> _debug ) error_log ( __METHOD__ . " UserMethod $userMethod not supported by server; trying best ServerMethod $method " );
return $method ;
}
}
}
return new PEAR_Error ( " $method NOT supported authentication method!. This IMAP server " .
" supports these methods: $serverMethods , but I support $myMethods " );
} else {
return new PEAR_Error ( " This IMAP server don't support any Auth methods " );
}
}
/**
* Attempt to disconnect from the iMAP server .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdLogout ()
{
if ( ! $this -> _connected ){
return new PEAR_Error ( 'not connected!' );
}
if ( PEAR :: isError ( $args = $this -> _genericCommand ( 'LOGOUT' ) ) ) {
error_log ( __METHOD__ . $args -> message );
return $args ;
}
if ( PEAR :: isError ( $reval = $this -> _socket -> disconnect () ) ) {
error_log ( __METHOD__ . $reval -> message );
return new PEAR_Error ( 'socket disconnect failed' );
}
return $args ;
// not for now
//return $this->_genericImapResponseParser($args,$cmdid);
}
/**
* Send the NOOP command .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdNoop ()
{
return $this -> _genericCommand ( 'NOOP' );
}
/**
* Send the CHECK command .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdCheck ()
{
return $this -> _genericCommand ( 'CHECK' );
}
/**
* Send the Select Mailbox Command
*
* @ param string The mailbox to select .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdSelect ( $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
if ( ! PEAR :: isError ( $ret = $this -> _genericCommand ( 'SELECT' , $mailbox_name ) ) ){
$this -> currentMailbox = $mailbox ;
}
return $ret ;
}
/**
* Send the EXAMINE Mailbox Command
*
* @ param string The mailbox to examine .
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdExamine ( $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
$ret = $this -> _genericCommand ( 'EXAMINE' , $mailbox_name );
$parsed = '' ;
if ( PEAR :: isError ( $ret ) ) {
error_log ( __METHOD__ . __LINE__ . $ret -> message );
return new PEAR_Error ( 'unable to examine ' . $mailbox . ':' . $ret -> message );
}
if ( isset ( $ret [ " PARSED " ] ) ){
for ( $i = 0 ; $i < count ( $ret [ " PARSED " ]); $i ++ ){
if ( array_key_exists ( " EXT " , $ret [ " PARSED " ][ $i ]) && is_array ( $ret [ " PARSED " ][ $i ][ " EXT " ])) {
$command = $ret [ " PARSED " ][ $i ][ " EXT " ];
$parsed [ key ( $command )] = $command [ key ( $command )];
}
}
}
return array ( " PARSED " => $parsed , " RESPONSE " => $ret [ " RESPONSE " ]);
}
/**
* Send the CREATE Mailbox Command
*
* @ param string $mailbox The mailbox to create .
* @ param array $options options to pass to create
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdCreate ( $mailbox , $options = null )
{
$args = " " ;
$mailbox_name = $this -> _createQuotedString ( $mailbox );
$args = $this -> _getCreateParams ( $options );
return $this -> _genericCommand ( 'CREATE' , $mailbox_name . $args );
}
/**
* Send the RENAME Mailbox Command
*
* @ param string $mailbox The old mailbox name .
* @ param string $new_mailbox The new ( renamed ) mailbox name .
* @ param array $options options to pass to create
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdRename ( $mailbox , $new_mailbox , $options = null )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
$new_mailbox_name = $this -> _createQuotedString ( $new_mailbox );
$args = $this -> _getCreateParams ( $options );
return $this -> _genericCommand ( 'RENAME' , " $mailbox_name $new_mailbox_name " . $args );
}
/**
* Send the DELETE Mailbox Command
*
* @ param string The mailbox name to delete .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdDelete ( $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
return $this -> _genericCommand ( 'DELETE' , $mailbox_name );
}
/**
* Send the SUSCRIBE Mailbox Command
*
* @ param string The mailbox name to suscribe .
*
* @ return array Returns an array containing the response
*
* @ access public
* @ since 1.0
*/
function cmdSubscribe ( $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
return $this -> _genericCommand ( 'SUBSCRIBE' , $mailbox_name );
}
/**
* Send the UNSUSCRIBE Mailbox Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdUnsubscribe ( $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
return $this -> _genericCommand ( 'UNSUBSCRIBE' , $mailbox_name );
}
/**
* Send the FETCH Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdFetch ( $msgset , $fetchparam )
{
return $this -> _genericCommand ( 'FETCH' , " $msgset $fetchparam " );
}
/**
* Send the CAPABILITY Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdCapability ()
{
$ret = $this -> _genericCommand ( 'CAPABILITY' );
if ( isset ( $ret [ " PARSED " ] ) ){
foreach ( $ret [ " PARSED " ] as $substruct ) {
if ( $substruct [ " COMMAND " ] == " CAPABILITY " ) {
$subrv = $substruct [ " EXT " ][ " CAPABILITY " ];
break ;
}
}
$ret [ " PARSED " ] = $subrv ;
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if ( stripos ( array2string ( $ret [ 'PARSED' ]), 'imap' ) === false ) return new PEAR_Error ( " No IMAP response for CAPABILITY " );
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//fill the $this->_serverAuthMethods and $this->_serverSupportedCapabilities arrays
foreach ( ( array ) $ret [ " PARSED " ][ " CAPABILITIES " ] as $auth_method ){
if ( strtoupper ( substr ( $auth_method , 0 , 5 ) ) == " AUTH= " )
$this -> _serverAuthMethods [] = substr ( $auth_method , 5 );
}
// Keep the capabilities response to use ir later
$this -> _serverSupportedCapabilities = $ret [ " PARSED " ][ " CAPABILITIES " ];
}
return $ret ;
}
/**
* Send the CAPABILITY Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdNamespace ()
{
$ret = $this -> _genericCommand ( 'NAMESPACE' );
if ( isset ( $ret [ " PARSED " ] ) ){
$ret [ " PARSED " ] = $ret [ " PARSED " ][ 0 ][ " EXT " ][ " NAMESPACE " ];
// Keep the namespace response for later use
$this -> _namespace = $ret [ " PARSED " ][ " NAMESPACES " ];
}
return $ret ;
}
/**
* Send the STATUS Mailbox Command
*
* @ param string $mailbox the mailbox name
* @ param mixed $request the request status
* it could be an array or space separated string of
* MESSAGES | RECENT | UIDNEXT
* UIDVALIDITY | UNSEEN
* @ return array Returns a Parsed Response
*
* @ access public
* @ since 1.0
*/
function cmdStatus ( $mailbox , $request )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
// make array from $request if it is none
if ( ! is_array ( $request )) {
$request = explode ( ' ' , $request );
}
// see RFC 3501
$valid_status_data = array ( 'MESSAGES' , 'RECENT' , 'UIDNEXT' , 'UIDVALIDITY' , 'UNSEEN' );
foreach ( $request as $status_data ) {
if ( ! in_array ( $status_data , $valid_status_data )) {
$this -> _prot_error ( " request ' $status_data ' is invalid! see RFC 3501!!!! " , __LINE__ , __FILE__ );
}
}
// back to space separated string
$request = implode ( ' ' , $request );
$ret = $this -> _genericCommand ( 'STATUS' , $mailbox_name . ' (' . $request . ')' );
if ( isset ( $ret [ 'PARSED' ])) {
foreach ( $ret [ 'PARSED' ] as & $parsed )
{
if ( ! empty ( $parsed [ 'EXT' ]))
{
if ( empty ( $ret [ 'RESPONSE' ][ 'CODE' ])) $ret [ 'RESPONSE' ][ 'CODE' ] = 'OK' ;
$ret [ 'PARSED' ] = $parsed [ 'EXT' ];
break ;
}
}
}
return $ret ;
}
/**
* Send the LIST Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdList ( $mailbox_base , $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
$mailbox_base = $this -> _createQuotedString ( $mailbox_base );
return $this -> _genericCommand ( 'LIST' , " $mailbox_base $mailbox_name " );
}
/**
* Send the LSUB Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdLsub ( $mailbox_base , $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
$mailbox_base = $this -> _createQuotedString ( $mailbox_base );
return $this -> _genericCommand ( 'LSUB' , " $mailbox_base $mailbox_name " );
}
/**
* Send the APPEND Command
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdAppend ( $mailbox , $msg , $flags_list = '' , $time = '' )
{
if ( ! $this -> _connected ){
return new PEAR_Error ( 'not connected!' );
}
$cmdid = $this -> _getCmdId ();
$msg_size = $this -> _getLineLength ( $msg );
$mailbox_name = $this -> _createQuotedString ( $mailbox );
if ( $flags_list != '' ) {
$flags_list = " ( $flags_list ) " ;
}
// TODO:
// Falta el codigo para que flags list y time hagan algo!!
if ( $this -> hasCapability ( " LITERAL+ " ) == true ){
$param = sprintf ( " %s%s%s { %s+} \r \n %s " , $mailbox_name , $flags_list , $time , $msg_size , $msg );
if ( PEAR :: isError ( $error = $this -> _putCMD ( $cmdid , 'APPEND' , $param ) ) ) {
return $error ;
}
} else {
$param = sprintf ( " %s%s%s { %s} " , $mailbox_name , $flags_list , $time , $msg_size );
if ( PEAR :: isError ( $error = $this -> _putCMD ( $cmdid , 'APPEND' , $param ) ) ) {
return $error ;
}
if ( PEAR :: isError ( $error = $this -> _recvLn () ) ) {
return $error ;
}
if ( PEAR :: isError ( $error = $this -> _send ( $msg . " \r \n " ) ) ) {
return $error ;
}
}
$args = $this -> _getRawResponse ( $cmdid );
$ret = $this -> _genericImapResponseParser ( $args , $cmdid );
return $ret ;
}
/**
* Send the CLOSE command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdClose ()
{
return $this -> _genericCommand ( 'CLOSE' );
}
/**
* Send the EXPUNGE command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdExpunge ()
{
$ret = $this -> _genericCommand ( 'EXPUNGE' );
if ( PEAR :: isError ( $ret )) return new PEAR_Error ( 'could not Expunge!' );
if ( isset ( $ret [ " PARSED " ] ) ){
$parsed = $ret [ " PARSED " ];
unset ( $ret [ " PARSED " ]);
foreach ( $parsed as $command ){
if ( strtoupper ( $command [ " COMMAND " ]) == 'EXPUNGE' ){
$ret [ " PARSED " ][ $command [ " COMMAND " ]][] = $command [ " NRO " ];
} else {
$ret [ " PARSED " ][ $command [ " COMMAND " ]] = $command [ " NRO " ];
}
}
}
return $ret ;
}
/**
* Send the SEARCH command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdSearch ( $search_cmd )
{
/* if ( $_charset != '' )
$_charset = " [ $_charset ] " ;
$param = sprintf ( " %s%s " , $charset , $search_cmd );
*/
$ret = $this -> _genericCommand ( 'SEARCH' , $search_cmd );
if ( isset ( $ret [ " PARSED " ] ) ){
$ret [ " PARSED " ] = $ret [ " PARSED " ][ 0 ][ " EXT " ];
}
return $ret ;
}
/**
* Send the SORT command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.1
*/
function cmdSort ( $sort_cmd )
{
/*
if ( $_charset != '' )
$_charset = " [ $_charset ] " ;
$param = sprintf ( " %s%s " , $charset , $search_cmd );
*/
$ret = $this -> _genericCommand ( 'SORT' , $sort_cmd );
if ( isset ( $ret [ 'PARSED' ])) {
$ret [ 'PARSED' ] = $ret [ 'PARSED' ][ 0 ][ 'EXT' ];
}
return $ret ;
}
/**
* Send the STORE command .
*
* @ param string $message_set the sessage_set
* @ param string $dataitem : the way we store the flags
* FLAGS : replace the flags whith $value
* FLAGS . SILENT : replace the flags whith $value but don ' t return untagged responses
*
* + FLAGS : Add the flags whith $value
* + FLAGS . SILENT : Add the flags whith $value but don ' t return untagged responses
*
* - FLAGS : Remove the flags whith $value
* - FLAGS . SILENT : Remove the flags whith $value but don ' t return untagged responses
*
* @ param string $value
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdStore ( $message_set , $dataitem , $value )
{
/* As said in RFC2060 ...
C : A003 STORE 2 : 4 + FLAGS ( \Deleted )
S : * 2 FETCH FLAGS ( \Deleted \Seen )
S : * 3 FETCH FLAGS ( \Deleted )
S : * 4 FETCH FLAGS ( \Deleted \Flagged \Seen )
S : A003 OK STORE completed
*/
if ( $dataitem != " FLAGS " && $dataitem != " FLAGS.SILENT " && $dataitem != " +FLAGS " &&
$dataitem != " +FLAGS.SILENT " && $dataitem != " -FLAGS " && $dataitem != " -FLAGS.SILENT " ){
$this -> _prot_error ( " dataitem ' $dataitem ' is invalid! see RFC2060!!!! " , __LINE__ , __FILE__ );
}
$param = sprintf ( " %s %s (%s) " , $message_set , $dataitem , $value );
return $this -> _genericCommand ( 'STORE' , $param );
}
/**
* Send the COPY command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdCopy ( $message_set , $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
return $this -> _genericCommand ( 'COPY' , sprintf ( " %s %s " , $message_set , $mailbox_name ) );
}
function cmdUidFetch ( $msgset , $fetchparam )
{
return $this -> _genericCommand ( 'UID FETCH' , sprintf ( " %s %s " , $msgset , $fetchparam ) );
}
function cmdUidCopy ( $message_set , $mailbox )
{
$mailbox_name = $this -> _createQuotedString ( $mailbox );
return $this -> _genericCommand ( 'UID COPY' , sprintf ( " %s %s " , $message_set , $mailbox_name ) );
}
/**
* Send the UID STORE command .
*
* @ param string $message_set the sessage_set
* @ param string $dataitem : the way we store the flags
* FLAGS : replace the flags whith $value
* FLAGS . SILENT : replace the flags whith $value but don ' t return untagged responses
*
* + FLAGS : Add the flags whith $value
* + FLAGS . SILENT : Add the flags whith $value but don ' t return untagged responses
*
* - FLAGS : Remove the flags whith $value
* - FLAGS . SILENT : Remove the flags whith $value but don ' t return untagged responses
*
* @ param string $value
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdUidStore ( $message_set , $dataitem , $value )
{
/* As said in RFC2060 ...
C : A003 STORE 2 : 4 + FLAGS ( \Deleted )
S : * 2 FETCH FLAGS ( \Deleted \Seen )
S : * 3 FETCH FLAGS ( \Deleted )
S : * 4 FETCH FLAGS ( \Deleted \Flagged \Seen )
S : A003 OK STORE completed
*/
if ( $dataitem != " FLAGS " && $dataitem != " FLAGS.SILENT " && $dataitem != " +FLAGS " &&
$dataitem != " +FLAGS.SILENT " && $dataitem != " -FLAGS " && $dataitem != " -FLAGS.SILENT " ){
$this -> _prot_error ( " dataitem ' $dataitem ' is invalid! see RFC2060!!!! " , __LINE__ , __FILE__ );
}
return $this -> _genericCommand ( 'UID STORE' , sprintf ( " %s %s (%s) " , $message_set , $dataitem , $value ) );
}
/**
* Send the SEARCH command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdUidSearch ( $search_cmd )
{
$ret = $this -> _genericCommand ( 'UID SEARCH' , sprintf ( " %s " , $search_cmd ) );
if ( isset ( $ret [ " PARSED " ] ) ){
$ret [ " PARSED " ] = $ret [ " PARSED " ][ 0 ][ " EXT " ];
}
return $ret ;
}
/**
* Send the UID SORT command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.1
*/
function cmdUidSort ( $sort_cmd )
{
$ret = $this -> _genericCommand ( 'UID SORT' , sprintf ( " %s " , $sort_cmd ));
if ( isset ( $ret [ 'PARSED' ])) {
$ret [ " PARSED " ] = $ret [ " PARSED " ][ 0 ][ " EXT " ];
}
return $ret ;
}
/**
* Send the X command .
*
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or true on success .
* @ access public
* @ since 1.0
*/
function cmdX ( $atom , $parameters )
{
return $this -> _genericCommand ( " X $atom " , $parameters );
}
/********************************************************************
***
*** HERE ENDS the RFC2060 IMAPS FUNCTIONS
*** AND BEGIN THE EXTENSIONS FUNCTIONS
***
********************************************************************/
/********************************************************************
*** RFC2087 IMAP4 QUOTA extension BEGINS HERE
********************************************************************/
/**
* Send the GETQUOTA command .
*
* @ param string $mailbox_name the mailbox name to query for quota data
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or quota data on success
* @ access public
* @ since 1.0
*/
function cmdGetQuota ( $mailbox_name )
{
//Check if the IMAP server has QUOTA support
if ( ! $this -> hasQuotaSupport () ){
return new PEAR_Error ( " This IMAP server does not support QUOTA's! " );
}
$mailbox_name = sprintf ( " %s " , $this -> utf_7_encode ( $mailbox_name ) );
$ret = $this -> _genericCommand ( 'GETQUOTA' , $mailbox_name );
if ( ! is_object ( $ret ) && isset ( $ret [ " PARSED " ] ) ){
// remove the array index because the quota response returns only 1 line of output
$ret [ 'PARSED' ] = $ret [ " PARSED " ][ 0 ];
}
return $ret ;
}
/**
* Send the GETQUOTAROOT command .
*
* @ param string $mailbox_name the mailbox name to query for quota data
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or quota data on success
* @ access public
* @ since 1.0
*/
function cmdGetQuotaRoot ( $mailbox_name )
{
//Check if the IMAP server has QUOTA support
if ( ! $this -> hasQuotaSupport () ){
return new PEAR_Error ( " This IMAP server does not support QUOTA's! " );
}
$mailbox_name = sprintf ( " %s " , $this -> utf_7_encode ( $mailbox_name ) );
$ret = $this -> _genericCommand ( 'GETQUOTAROOT' , $mailbox_name );
if ( ! is_object ( $ret ) && isset ( $ret [ " PARSED " ] ) ){
// remove the array index because the quota response returns only 1 line of output
$ret [ 'PARSED' ] = $ret [ " PARSED " ][ 1 ];
}
return $ret ;
}
/**
* Send the SETQUOTA command .
*
* @ param string $mailbox_name the mailbox name to query for quota data
* @ param string $storageQuota sets the max number of bytes this mailbox can handle
* @ param string $messagesQuota sets the max number of messages this mailbox can handle
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or quota data on success
* @ access public
* @ since 1.0
*/
// TODO: implement the quota by number of emails!!
function cmdSetQuota ( $mailbox_name , $storageQuota = null , $messagesQuota = null )
{
//Check if the IMAP server has QUOTA support
if ( ! $this -> hasQuotaSupport () ){
return new PEAR_Error ( " This IMAP server does not support QUOTA's! " );
}
if ( ( $messagesQuota == null ) && ( $storageQuota == null ) ){
return new PEAR_Error ( '$storageQuota and $messagesQuota parameters can\'t be both null if you want to use quota' );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
//Make the command request
$param = sprintf ( " %s ( " , $mailbox_name );
if ( $storageQuota != null ){
if ( $storageQuota == - 1 ) {
// set -1 to remove a quota
$param = sprintf ( " %s " , $param );
} elseif ( $storageQuota == strtolower ( 'remove' )) {
// this is a cyrus rmquota specific feature
// see http://email.uoa.gr/projects/cyrus/quota-patches/rmquota/
$param = sprintf ( " %sREMOVE 1 " , $param );
} else {
$param = sprintf ( " %sSTORAGE %s " , $param , $storageQuota );
}
if ( $messagesQuota != null ){
//if we have both types of quota on the same call we must append an space between
// those parameters
$param = sprintf ( " %s " , $param );
}
}
if ( $messagesQuota != null ){
$param = sprintf ( " %sMESSAGES %s " , $param , $messagesQuota );
}
$param = sprintf ( " %s) " , $param );
return $this -> _genericCommand ( 'SETQUOTA' , $param );
}
/**
* Send the SETQUOTAROOT command .
*
* @ param string $mailbox_name the mailbox name to query for quota data
* @ param string $storageQuota sets the max number of bytes this mailbox can handle
* @ param string $messagesQuota sets the max number of messages this mailbox can handle
* @ return mixed Returns a PEAR_Error with an error message on any
* kind of failure , or quota data on success
* @ access public
* @ since 1.0
*/
function cmdSetQuotaRoot ( $mailbox_name , $storageQuota = null , $messagesQuota = null )
{
//Check if the IMAP server has QUOTA support
if ( ! $this -> hasQuotaSupport () ){
return new PEAR_Error ( " This IMAP server does not support QUOTA's! " );
}
if ( ( $messagesQuota == null ) && ( $storageQuota == null ) ){
return new PEAR_Error ( '$storageQuota and $messagesQuota parameters can\'t be both null if you want to use quota' );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
//Make the command request
$param = sprintf ( " %s ( " , $mailbox_name );
if ( $storageQuota != null ){
$param = sprintf ( " %sSTORAGE %s " , $param , $storageQuota );
if ( $messagesQuota != null ){
//if we have both types of quota on the same call we must append an space between
// those parameters
$param = sprintf ( " %s " , $param );
}
}
if ( $messagesQuota != null ){
$param = sprintf ( " %sMESSAGES %s " , $param , $messagesQuota );
}
$param = sprintf ( " %s) " , $param );
return $this -> _genericCommand ( 'SETQUOTAROOT' , $param );
}
/********************************************************************
*** RFC2087 IMAP4 QUOTA extension ENDS HERE
********************************************************************/
/********************************************************************
*** RFC2086 IMAP4 ACL extension BEGINS HERE
********************************************************************/
function cmdSetACL ( $mailbox_name , $user , $acl )
{
//Check if the IMAP server has ACL support
if ( ! $this -> hasAclSupport () ){
return new PEAR_Error ( " This IMAP server does not support ACL's! " );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
$user_name = $this -> _createQuotedString ( $user );
if ( is_array ( $acl )){
$acl = implode ( '' , $acl );
}
return $this -> _genericCommand ( 'SETACL' , sprintf ( " %s %s \" %s \" " , $mailbox_name , $user_name , $acl ) );
}
function cmdDeleteACL ( $mailbox_name , $user )
{
//Check if the IMAP server has ACL support
if ( ! $this -> hasAclSupport () ){
return new PEAR_Error ( " This IMAP server does not support ACL's! " );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
return $this -> _genericCommand ( 'DELETEACL' , sprintf ( " %s \" %s \" " , $mailbox_name , $user ) );
}
function cmdGetACL ( $mailbox_name )
{
//Check if the IMAP server has ACL support
if ( ! $this -> hasAclSupport () ){
return new PEAR_Error ( " This IMAP server does not support ACL's! " );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
$ret = $this -> _genericCommand ( 'GETACL' , sprintf ( " %s " , $mailbox_name ) );
if ( isset ( $ret [ " PARSED " ] ) ){
$ret [ 'PARSED' ] = $ret [ " PARSED " ][ 0 ][ " EXT " ];
}
return $ret ;
}
function cmdListRights ( $mailbox_name , $user )
{
//Check if the IMAP server has ACL support
if ( ! $this -> hasAclSupport () ){
return new PEAR_Error ( " This IMAP server does not support ACL's! " );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
$ret = $this -> _genericCommand ( 'LISTRIGHTS' , sprintf ( " %s \" %s \" " , $mailbox_name , $user ) );
if ( isset ( $ret [ " PARSED " ] ) ){
$ret [ " PARSED " ] = $ret [ " PARSED " ][ 0 ][ " EXT " ];
}
return $ret ;
}
function cmdMyRights ( $mailbox_name )
{
//Check if the IMAP server has ACL support
if ( ! $this -> hasAclSupport () ){
return new PEAR_Error ( " This IMAP server does not support ACL's! " );
}
$mailbox_name = $this -> _createQuotedString ( $mailbox_name );
$ret = $this -> _genericCommand ( 'MYRIGHTS' , sprintf ( " %s " , $mailbox_name ) );
if ( isset ( $ret [ " PARSED " ] ) ){
$ret [ " PARSED " ] = $ret [ " PARSED " ][ 0 ][ " EXT " ];
}
return $ret ;
}
/********************************************************************
*** RFC2086 IMAP4 ACL extension ENDs HERE
********************************************************************/
/*******************************************************************************
*** draft - daboo - imap - annotatemore - 05 IMAP4 ANNOTATEMORE extension BEGINS HERE
********************************************************************************/
function cmdSetAnnotation ( $mailbox_name , $entry , $values )
{
// Check if the IMAP server has ANNOTATEMORE support
if ( ! $this -> hasAnnotateMoreSupport ()) {
return new PEAR_Error ( 'This IMAP server does not support the ANNOTATEMORE extension!' );
}
if ( ! is_array ( $values )) {
return new PEAR_Error ( 'Invalid $values argument passed to cmdSetAnnotation' );
}
$vallist = '' ;
foreach ( $values as $name => $value ) {
$vallist .= " \" $name\ " \ " $value\ " " ;
}
$vallist = rtrim ( $vallist );
return $this -> _genericCommand ( 'SETANNOTATION' , sprintf ( '"%s" "%s" (%s)' , $mailbox_name , $entry , $vallist ));
}
function cmdDeleteAnnotation ( $mailbox_name , $entry , $values )
{
// Check if the IMAP server has ANNOTATEMORE support
if ( ! $this -> hasAnnotateMoreSupport ()) {
return new PEAR_Error ( 'This IMAP server does not support the ANNOTATEMORE extension!' );
}
if ( ! is_array ( $values )) {
return new PEAR_Error ( 'Invalid $values argument passed to cmdDeleteAnnotation' );
}
$vallist = '' ;
foreach ( $values as $name ) {
$vallist .= " \" $name\ " NIL " ;
}
$vallist = rtrim ( $vallist );
return $this -> _genericCommand ( 'SETANNOTATION' , sprintf ( '"%s" "%s" (%s)' , $mailbox_name , $entry , $vallist ));
}
function cmdGetAnnotation ( $mailbox_name , $entries , $values )
{
// Check if the IMAP server has ANNOTATEMORE support
if ( ! $this -> hasAnnotateMoreSupport ()) {
return new PEAR_Error ( 'This IMAP server does not support the ANNOTATEMORE extension!' );
}
$entlist = '' ;
if ( ! is_array ( $entries )) {
$entries = array ( $entries );
}
foreach ( $entries as $name ) {
$entlist .= " \" $name\ " " ;
}
$entlist = rtrim ( $entlist );
if ( count ( $entries ) > 1 ) {
$entlist = " ( $entlist ) " ;
}
$vallist = '' ;
if ( ! is_array ( $values )) {
$values = array ( $values );
}
foreach ( $values as $name ) {
$vallist .= " \" $name\ " " ;
}
$vallist = rtrim ( $vallist );
if ( count ( $values ) > 1 ) {
$vallist = " ( $vallist ) " ;
}
return $this -> _genericCommand ( 'GETANNOTATION' , sprintf ( '"%s" %s %s' , $mailbox_name , $entlist , $vallist ));
}
/*****************************************************************************
*** draft - daboo - imap - annotatemore - 05 IMAP4 ANNOTATEMORE extension ENDs HERE
******************************************************************************/
/********************************************************************
***
*** HERE ENDS THE EXTENSIONS FUNCTIONS
*** AND BEGIN THE AUXILIARY FUNCTIONS
***
********************************************************************/
/**
* tell if the server has capability $capability
*
* @ return true or false
*
* @ access public
* @ since 1.0
*/
function getServerAuthMethods ()
{
if ( $this -> _serverAuthMethods == null ){
$this -> cmdCapability ();
return $this -> _serverAuthMethods ;
}
return false ;
}
/**
* tell if the server has capability $capability
*
* @ return true or false
*
* @ access public
* @ since 1.0
*/
function hasCapability ( $capability )
{
if ( $this -> _serverSupportedCapabilities == null ){
$this -> cmdCapability ();
}
if ( $this -> _serverSupportedCapabilities != null ){
if ( in_array ( $capability , $this -> _serverSupportedCapabilities ) ){
return true ;
}
}
return false ;
}
/**
* tell if the server has Quota support
*
* @ return true or false
*
* @ access public
* @ since 1.0
*/
function hasQuotaSupport ()
{
return $this -> hasCapability ( 'QUOTA' );
}
/**
* tell if the server has Quota support
*
* @ return true or false
*
* @ access public
* @ since 1.0
*/
function hasAclSupport ()
{
return $this -> hasCapability ( 'ACL' );
}
/**
* tell if the server has support for the ANNOTATEMORE extension
*
* @ return true or false
*
* @ access public
* @ since 1.0
*/
function hasAnnotateMoreSupport ()
{
return $this -> hasCapability ( 'ANNOTATEMORE' );
}
function _createQuotedString ( $mailbox )
{
$search = array ( '\\' , '"' );
$replace = array ( '\\\\' , '\\"' );
$mailbox_name = str_replace ( $search , $replace , $mailbox );
$mailbox_name = sprintf ( " \" %s \" " , $this -> utf_7_encode ( $mailbox_name ) );
return $mailbox_name ;
}
/**
* Parses the responses like RFC822 . SIZE and INTERNALDATE
*
* @ param string the IMAP ' s server response
*
* @ return string containing the parsed response
* @ access private
* @ since 1.0
*/
function _parseOneStringResponse ( & $str , $line , $file )
{
$this -> _parseSpace ( $str , $line , $file );
$size = $this -> _getNextToken ( $str , $uid );
return $uid ;
}
/**
* Parses the FLAG response
*
* @ param string the IMAP ' s server response
*
* @ return Array containing the parsed response
* @ access private
* @ since 1.0
*/
function _parseFLAGSresponse ( & $str )
{
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$params_arr [] = $this -> _arrayfy_content ( $str );
$flags_arr = array ();
for ( $i = 0 ; $i < count ( $params_arr [ 0 ]) ; $i ++ ){
$flags_arr [] = $params_arr [ 0 ][ $i ];
}
return $flags_arr ;
}
/**
* Parses the BODY response
*
* @ param string the IMAP ' s server response
*
* @ return Array containing the parsed response
* @ access private
* @ since 1.0
*/
function _parseBodyResponse ( & $str , $command )
{
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
while ( $str [ 0 ] != ')' && $str != '' ){
$params_arr [] = $this -> _arrayfy_content ( $str );
}
return $params_arr ;
}
/**
* Makes the content an Array
*
* @ param string the IMAP ' s server response
*
* @ return Array containing the parsed response
* @ access private
* @ since 1.0
*/
function _arrayfy_content ( & $str )
{
$params_arr = array ();
$this -> _getNextToken ( $str , $params );
if ( $params != '(' ){
return $params ;
}
$this -> _getNextToken ( $str , $params , false , false );
while ( $str != '' && $params != ')' ){
if ( $params != '' ){
if ( $params [ 0 ] == '(' ){
$params = $this -> _arrayfy_content ( $params );
}
if ( $params != ' ' ){
//I don't remove the colons (") to handle the case of retriving " "
// If I remove the colons the parser will interpret this field as an imap separator (space)
// instead of a valid field so I remove the colons here
if ( $params == '""' ){
$params = '' ;
} else {
if ( $params [ 0 ] == '"' ){
$params = $this -> _getSubstr ( $params , 1 , $this -> _getLineLength ( $params ) - 2 );
}
}
$params_arr [] = $params ;
}
} else {
//if params if empty (for example i'm parsing 2 quotes ("")
// I'll append an array entry to mantain compatibility
$params_arr [] = $params ;
}
$this -> _getNextToken ( $str , $params , false , false );
}
$this -> arrayfy_content_level -- ;
return $params_arr ;
}
/**
* Parses the BODY [], BODY [ TEXT ], .... responses
*
* @ param string the IMAP ' s server response
*
* @ return Array containing the parsed response
* @ access private
* @ since 1.0
*/
function _parseContentresponse ( & $str , $command )
{
$content = '' ;
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$size = $this -> _getNextToken ( $str , $content );
return array ( " CONTENT " => $content , " CONTENT_SIZE " => $size );
}
/**
* Parses the ENVELOPE response
*
* @ param string the IMAP ' s server response
*
* @ return Array containing the parsed response
* @ access private
* @ since 1.0
*/
function _parseENVELOPEresponse ( & $str )
{
$content = '' ;
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $parenthesis );
if ( $parenthesis != '(' ){
$this -> _prot_error ( " must be a '(' but is a ' $parenthesis ' !!!! " , __LINE__ , __FILE__ );
}
// Get the email's Date
$this -> _getNextToken ( $str , $date );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
// Get the email's Subject:
$this -> _getNextToken ( $str , $subject );
//$subject=$this->decode($subject);
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
//FROM LIST;
$from_arr = $this -> _getAddressList ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
//"SENDER LIST\n";
$sender_arr = $this -> _getAddressList ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
//"REPLY-TO LIST\n";
$reply_to_arr = $this -> _getAddressList ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
//"TO LIST\n";
$to_arr = $this -> _getAddressList ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
//"CC LIST\n";
$cc_arr = $this -> _getAddressList ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
//"BCC LIST|$str|\n";
$bcc_arr = $this -> _getAddressList ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $in_reply_to );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $message_id );
$this -> _getNextToken ( $str , $parenthesis );
if ( $parenthesis != ')' ){
$this -> _prot_error ( " must be a ')' but is a ' $parenthesis ' !!!! " , __LINE__ , __FILE__ );
}
return array ( " DATE " => $date , " SUBJECT " => $subject , " FROM " => $from_arr ,
" SENDER " => $sender_arr , " REPLY_TO " => $reply_to_arr , " TO " => $to_arr ,
" CC " => $cc_arr , " BCC " => $bcc_arr , " IN_REPLY_TO " => $in_reply_to , " MESSAGE_ID " => $message_id );
}
/**
* Parses the ARRDLIST as defined in RFC
*
* @ param string the IMAP ' s server response
*
* @ return Array containing the parsed response
* @ access private
* @ since 1.0
*/
function _getAddressList ( & $str )
{
$params_arr = $this -> _arrayfy_content ( $str );
if ( ! isset ( $params_arr ) ){
return $params_arr ;
}
if ( is_array ( $params_arr ) ){
foreach ( $params_arr as $index => $address_arr ) {
$personal_name = $address_arr [ 0 ];
$at_domain_list = $address_arr [ 1 ];
$mailbox_name = $address_arr [ 2 ];
$host_name = $address_arr [ 3 ];
if ( $mailbox_name != '' && $host_name != '' ){
$email = $mailbox_name . " @ " . $host_name ;
} else {
$email = false ;
}
if ( $email == false ){
$rfc822_email = false ;
} else {
if ( ! isset ( $personal_name )){
$rfc822_email = " < " . $email . " > " ;
} else {
$rfc822_email = " \" " . $personal_name . " \" < " . $email . " > " ;
}
}
$email_arr [] = array ( " PERSONAL_NAME " => $personal_name , " AT_DOMAIN_LIST " => $at_domain_list ,
" MAILBOX_NAME " => $this -> utf_7_decode ( $mailbox_name ), " HOST_NAME " => $host_name ,
" EMAIL " => $email , " RFC822_EMAIL " => $rfc822_email );
}
return $email_arr ;
}
return array ();
}
/**
* Utility funcion to find the closing parenthesis " ) " Position it takes care of quoted ones
*
* @ param string the IMAP ' s server response
*
* @ return int containing the pos of the closing parenthesis " ) "
* @ access private
* @ since 1.0
*/
function _getClosingBracesPos ( $str_line , $startDelim = '(' , $stopDelim = ')' )
{
$len = $this -> _getLineLength ( $str_line );
$pos = 0 ;
// ignore all extra characters
// If inside of a string, skip string -- Boundary IDs and other
// things can have ) in them.
if ( $str_line [ $pos ] != $startDelim ) {
$this -> _prot_error ( " _getClosingParenthesisPos: must start with a ' " . $startDelim . " ' but is a ' " . $str_line [ $pos ] . " '!!!! \n " .
" STR_LINE: $str_line |size: $len |POS: $pos\n " , __LINE__ , __FILE__ );
return ( $len );
}
for ( $pos = 1 ; $pos < $len ; $pos ++ ){
if ( $str_line [ $pos ] == $stopDelim ) {
break ;
}
if ( $str_line [ $pos ] == '"' ) {
$this -> _advanceOverStr ( $str_line , $pos , $len , $startDelim , $stopDelim );
}
if ( $str_line [ $pos ] == $startDelim ) {
#$str_line_aux = substr( $str_line , $pos );
$str_line_aux = $this -> _getSubstr ( $str_line , $pos );
$pos_aux = $this -> _getClosingBracesPos ( $str_line_aux );
$pos += $pos_aux ;
if ( $pos == $len - 1 ) break ;
}
}
if ( $str_line [ $pos ] != $stopDelim ){
$this -> _prot_error ( " _getClosingBracesPos: must be a $stopDelim but is a ' " . $str_line [ $pos ] . " '|POS: $pos |STR_LINE: $str_line !!!! " , __LINE__ , __FILE__ );
}
if ( $pos >= $len )
return false ;
return $pos ;
}
/**
* Advances the position $pos in $str over an correcty escaped string
*
* Examples : $str = '"\\\"First Last\\\""' , $pos = 0
* --> returns true and $pos = strlen ( $str ) - 1
*
* @ param string $str
* @ param int & $pos current position in $str pointing to a double quote ( " ), on return pointing on the closing double quote
* @ param int $len length of $str in bytes ( ! )
* @ return boolean true if we advanced over a correct string , false otherwise
*/
function _advanceOverStr ( $str , & $pos , $len , $startDelim = '(' , $stopDelim = ')' )
{
#error_log(__METHOD__. $len . "#".$str."\n");
$startingpos = $pos ;
if ( $str [ $pos ] !== '"' ) return false ; // start condition failed
$pos ++ ;
$delimCount = 0 ;
while ( $str [ $pos ] !== '"' && $pos < $len ) {
// this is a fix to stop before the delimiter, in broken string messages containing an odd number of double quotes
// the idea is to check for a stopDelimited followed by eiter a new startDelimiter or an other stopDelimiter
// that allows to have something like '"Name (Nick)" <email>' containing one delimiter
// if you have something like "Name ((something))" we must count the delimiters (and hope that they are not unbalanced too)
// and check if we have a negative amount of delimiters or no delimiters to meet the stop condition, before we run into a closing double quote
if ( $str [ $pos ] === $startDelim ) $delimCount ++ ;
if ( $str [ $pos ] === $stopDelim ) $delimCount -- ;
if ( $str [ $pos ] === $stopDelim && ( $str [ $pos + 1 ] === $startDelim || ( $str [ $pos + 1 ] === $stopDelim && $delimCount <= 0 ))) {
$encoding = mb_internal_encoding ();
//if (mb_check_encoding($str)) {
// error_log(__METHOD__.' Encoding used:'.mb_internal_encoding().' Detected:'.mb_detect_encoding($str));
// $encoding = mb_detect_encoding($str);
//}
// beware as mb_substr_count does not support the offset parameter.
$numOfQuotes = substr_count ( substr ( $str , $startingpos ), '"' );
$numOfMaskedQuotes = substr_count ( substr ( $str , $startingpos ), '\"' );
if ((( $numOfQuotes - $numOfMaskedQuotes ) % 2 ) == 0 ) {
// quotes are balanced, so its unlikely that we meet a stop condition here as strings may contain )(
//error_log(__METHOD__. "->Length: $len; NumOfQuotes: $numOfQuotes - NumofMaskedQuotes:$numOfMaskedQuotes #".$str."\n");
2011-11-10 18:07:01 +01:00
if ( $_debug ) error_log ( __METHOD__ . " problem at $pos with: " . $str [ $pos ] . " (last character) Numberof delimiters (' " . $startDelim . " ',' " . $stopDelim . " ') found: " . $delimCount . ' String:' . substr ( $str , $startingpos , $pos ) . ' called from:' . function_backtrace ());
2011-07-01 12:37:47 +02:00
//return false;
} else {
$pos -- ; // stopDelimited need to be parsed outside!
return false ;
}
}
if ( $str [ $pos ] === '\\' ) $pos ++ ; // all escaped chars are overread (eg. \\, \", \x)
$pos ++ ;
}
return $pos < $len && $str [ $pos ] === '"' ;
}
/**
* Utility funcion to get from here to the end of the line
*
* @ param string the IMAP ' s server response
*
* @ return string containing the string to the end of the line
* @ access private
* @ since 1.0
*/
function _getToEOL ( & $str , $including = true )
{
$len = $this -> _getLineLength ( $str );
if ( $including ){
for ( $i = 0 ; $i < $len ; $i ++ ){
if ( $str [ $i ] == " \n " )
break ;
}
$content = $this -> _getSubstr ( $str , 0 , $i + 1 );
$str = $this -> _getSubstr ( $str , $i + 1 );
return $content ;
} else {
for ( $i = 0 ; $i < $len ; $i ++ ){
if ( $str [ $i ] == " \n " || $str [ $i ] == " \r " )
break ;
}
$content = $this -> _getSubstr ( $str , 0 , $i );
$str = $this -> _getSubstr ( $str , $i );
return $content ;
}
}
/**
* Fetches the next IMAP token or parenthesis
*
* @ param string the IMAP ' s server response
* @ param string the next token
* @ param boolean true : the parenthesis IS a token , false : I consider
* all the response in parenthesis as a token
*
* @ return int containing the content size
* @ access private
* @ since 1.0
*/
function _getNextToken ( & $str , & $content , $parenthesisIsToken = true , $colonIsToken = true ){
$len = $this -> _getLineLength ( $str );
$pos = 0 ;
$content_size = false ;
$content = false ;
if ( $str == '' || $len < 2 ){
$content = $str ;
return $len ;
}
switch ( $str [ 0 ] ){
case '{' :
if ( ( $posClosingBraces = $this -> _getClosingBracesPos ( $str , '{' , '}' )) == false ){
$this -> _prot_error ( " _getClosingBracesPos() error!!! " , __LINE__ , __FILE__ );
}
if ( ! is_numeric ( ( $strBytes = $this -> _getSubstr ( $str , 1 , $posClosingBraces - 1 ) ) ) ){
$this -> _prot_error ( " must be a number but is a ' " . $strBytes . " '!!!! " , __LINE__ , __FILE__ );
}
if ( $str [ $posClosingBraces ] != '}' ){
$this -> _prot_error ( " must be a '}' but is a ' " . $str [ $posClosingBraces ] . " '!!!! " , __LINE__ , __FILE__ );
}
if ( $str [ $posClosingBraces + 1 ] != " \r " ){
$this -> _prot_error ( " must be a ' \\ r' but is a ' " . $str [ $posClosingBraces + 1 ] . " '!!!! " , __LINE__ , __FILE__ );
}
if ( $str [ $posClosingBraces + 2 ] != " \n " ){
$this -> _prot_error ( " must be a ' \\ n' but is a ' " . $str [ $posClosingBraces + 2 ] . " '!!!! " , __LINE__ , __FILE__ );
}
$content = $this -> _getSubstr ( $str , $posClosingBraces + 3 , $strBytes );
if ( $this -> _getLineLength ( $content ) != $strBytes ){
$this -> _prot_error ( " content size is " . $this -> _getLineLength ( $content ) . " but the string reports a size of $strBytes !!! \n " , __LINE__ , __FILE__ );
}
$content_size = $strBytes ;
//Advance the string
$str = $this -> _getSubstr ( $str , $posClosingBraces + $strBytes + 3 );
break ;
case '"' :
if ( $colonIsToken ){
for ( $pos = 1 ; $pos < $len ; $pos ++ ){
if ( $str [ $pos ] == " \" " ) {
break ;
}
if ( $str [ $pos ] == " \\ " && $str [ $pos + 1 ] == " \" " )
$pos ++ ;
if ( $str [ $pos ] == " \\ " && $str [ $pos + 1 ] == " \\ " )
$pos ++ ;
}
if ( $str [ $pos ] != '"' ){
$this -> _prot_error ( " must be a ' \" ' but is a ' " . $str [ $pos ] . " '!!!! " , __LINE__ , __FILE__ );
}
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 1 , $pos - 1 );
//Advance the string
$str = $this -> _getSubstr ( $str , $pos + 1 );
} else {
for ( $pos = 1 ; $pos < $len ; $pos ++ ){
if ( $str [ $pos ] == " \" " ) {
break ;
}
if ( $str [ $pos ] == " \\ " && $str [ $pos + 1 ] == " \" " )
$pos ++ ;
if ( $str [ $pos ] == " \\ " && $str [ $pos + 1 ] == " \\ " )
$pos ++ ;
}
if ( $str [ $pos ] != '"' ){
$this -> _prot_error ( " must be a ' \" ' but is a ' " . $str [ $pos ] . " '!!!! " , __LINE__ , __FILE__ );
}
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos + 1 );
//Advance the string
$str = $this -> _getSubstr ( $str , $pos + 1 );
}
# we need to strip slashes for a quoted string
$content = stripslashes ( $content );
break ;
case " \r " :
$pos = 1 ;
if ( $str [ 1 ] == " \n " )
$pos ++ ;
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos );
$str = $this -> _getSubstr ( $str , $pos );
break ;
case " \n " :
$pos = 1 ;
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos );
$str = $this -> _getSubstr ( $str , $pos );
break ;
case '(' :
if ( $parenthesisIsToken == false ){
$pos = $this -> _getClosingBracesPos ( $str );
$content_size = $pos + 1 ;
$content = $this -> _getSubstr ( $str , 0 , $pos + 1 );
$str = $this -> _getSubstr ( $str , $pos + 1 );
} else {
$pos = 1 ;
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos );
$str = $this -> _getSubstr ( $str , $pos );
}
break ;
case ')' :
$pos = 1 ;
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos );
$str = $this -> _getSubstr ( $str , $pos );
break ;
case ' ' :
$pos = 1 ;
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos );
$str = $this -> _getSubstr ( $str , $pos );
break ;
default :
for ( $pos = 0 ; $pos < $len ; $pos ++ ){
if ( $this -> _getSubstr ( $str , 0 , 5 ) == 'BODY[' || $this -> _getSubstr ( $str , 0 , 5 ) == 'BODY.' ) {
if ( $str [ $pos ] == ']' ) {
$pos ++ ;
break ;
}
} elseif ( $str [ $pos ] == ' ' || $str [ $pos ] == " \r " || $str [ $pos ] == ')' || $str [ $pos ] == '(' || $str [ $pos ] == " \n " ) {
break ;
}
if ( $str [ $pos ] == " \\ " && $str [ $pos + 1 ] == ' ' )
$pos ++ ;
if ( $str [ $pos ] == " \\ " && $str [ $pos + 1 ] == " \\ " )
$pos ++ ;
}
//Advance the string
if ( $pos == 0 ){
$content_size = 1 ;
$content = $this -> _getSubstr ( $str , 0 , 1 );
$str = $this -> _getSubstr ( $str , 1 );
} else {
$content_size = $pos ;
$content = $this -> _getSubstr ( $str , 0 , $pos );
if ( $pos < $len ){
$str = $this -> _getSubstr ( $str , $pos );
} else {
//if this is the end of the string... exit the switch
break ;
}
}
break ;
}
#error_log("egw-pear::NET::IMAPProtocoll:_getNextToken:".$str);
return $content_size ;
}
// ToDo: all real errors should be returned as PEAR error, others hidden by default
// NO extra output from this class!
/**
* Utility funcion to display to console the protocol errors
* printErrors () additionally has to be set to true
*
* @ param string $str the error message
* @ param int $line the line producing the error
* @ param string $file file where the error was produced
*
* @ return nothing
* @ access private
* @ since 1.0
*/
function _prot_error ( $str , $line , $file , $printError = true )
{
if ( $this -> _printErrors && $printError ) {
echo " $line , $file ,PROTOCOL ERROR!: $str\n " ;
}
}
function _getEXTarray ( & $str , $startDelim = '(' , $stopDelim = ')' ){
/* I let choose the $startDelim and $stopDelim to allow parsing
the OK response so I also can parse a response like this
* OK [ UIDNEXT 150 ] Predicted next UID
*/
$this -> _getNextToken ( $str , $parenthesis );
if ( $parenthesis != $startDelim ){
$this -> _prot_error ( " must be a ' $startDelim ' but is a ' $parenthesis ' !!!! " , __LINE__ , __FILE__ );
}
$parenthesis = '' ;
$struct_arr = array ();
while ( $parenthesis != $stopDelim && $str != '' ){
// The command
$this -> _getNextToken ( $str , $token );
$token = strtoupper ( $token );
if ( ( $ret = $this -> _retrParsedResponse ( $str , $token ) ) != false ){
//$struct_arr[$token] = $ret;
$struct_arr = array_merge ( $struct_arr , $ret );
}
$parenthesis = $token ;
} //While
if ( $parenthesis != $stopDelim ){
$this -> _prot_error ( " 1_must be a ' $stopDelim ' but is a ' $parenthesis ' !!!! " , __LINE__ , __FILE__ );
}
return $struct_arr ;
}
function _retrParsedResponse ( & $str , $token , $previousToken = null )
{
//echo "\n\nTOKEN:$token\r\n";
$token = strtoupper ( $token );
switch ( $token ){
case " RFC822.SIZE " :
return array ( $token => $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ ));
break ;
// case "RFC822.TEXT" :
// case "RFC822.HEADER" :
case " RFC822 " :
return array ( $token => $this -> _parseContentresponse ( $str , $token ));
break ;
case " FLAGS " :
case " PERMANENTFLAGS " :
return array ( $token => $this -> _parseFLAGSresponse ( $str ));
break ;
case " ENVELOPE " :
return array ( $token => $this -> _parseENVELOPEresponse ( $str ));
break ;
case " EXPUNGE " :
return false ;
break ;
case 'NOMODSEQ' :
// ToDo: implement RFC 4551
return array ( $token => '' );
break ;
case " UID " :
case " UIDNEXT " :
case " UIDVALIDITY " :
case " UNSEEN " :
case " MESSAGES " :
case " UIDNEXT " :
case " UIDVALIDITY " :
case " UNSEEN " :
case " INTERNALDATE " :
return array ( $token => $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ ));
break ;
case " BODY " :
case " BODYSTRUCTURE " :
return array ( $token => $this -> _parseBodyResponse ( $str , $token ));
break ;
case " RECENT " :
if ( $previousToken != null ){
$aux [ " RECENT " ] = $previousToken ;
return $aux ;
} else {
return array ( $token => $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ ));
}
break ;
case " EXISTS " :
return array ( $token => $previousToken );
break ;
case " READ-WRITE " :
case " READ-ONLY " :
return array ( $token => $token );
break ;
case " QUOTA " :
/*
A tipical GETQUOTA DIALOG IS AS FOLLOWS
C : A0004 GETQUOTA user . damian
S : * QUOTA user . damian ( STORAGE 1781460 4000000 )
S : A0004 OK Completed
another example of QUOTA response from GETQUOTAROOT :
C : A0008 GETQUOTAROOT INBOX
S : * QUOTAROOT INBOX " "
S : * QUOTA " " ( STORAGE 0 1024000 MESSAGE 0 40000 )
S : A0008 OK GETQUOTAROOT finished .
RFC 2087 section 5.1 says the list could be empty :
C : A0004 GETQUOTA user . damian
S : * QUOTA user . damian ()
S : A0004 OK Completed
quota_list ::= " ( " #quota_resource ")"
quota_resource ::= atom SP number SP number
quota_response ::= " QUOTA " SP astring SP quota_list
*/
$mailbox = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$ret_aux = array ( 'MAILBOX' => $this -> utf_7_decode ( $mailbox ));
// courier fix
if ( $str [ 0 ] . $str [ 1 ] == " \r \n " ) {
return array ( $token => $ret_aux );
}
// end courier fix
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _parseString ( $str , '(' , __LINE__ , __FILE__ );
// fetching quota resources ( BNF ::= #quota_resource but spce separated instead of comma)
$this -> _getNextToken ( $str , $quota_resp );
while ( $quota_resp != ')' ) {
if (( $ext = $this -> _retrParsedResponse ( $str , $quota_resp )) == false ) {
$this -> _prot_error ( " bogus response!!!! " , __LINE__ , __FILE__ );
}
$ret_aux = array_merge ( $ret_aux , $ext );
$this -> _getNextToken ( $str , $quota_resp );
if ( $quota_resp == ' ' ) {
$this -> _getNextToken ( $str , $quota_resp );
}
}
// if empty list, apparently no STORAGE or MESSAGE quota set
return array ( $token => $ret_aux );
break ;
case " QUOTAROOT " :
/*
A tipical GETQUOTA DIALOG IS AS FOLLOWS
C : A0004 GETQUOTA user . damian
S : * QUOTA user . damian ( STORAGE 1781460 4000000 )
S : A0004 OK Completed
*/
$mailbox = $this -> utf_7_decode ( $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ ));
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 0 ) );
if ( empty ( $str_line )) {
$ret = @ array ( " MAILBOX " => $this -> utf_7_decode ( $mailbox ));
} else {
$quotaroot = $this -> _parseOneStringResponse ( $str_line , __LINE__ , __FILE__ );
$ret = @ array ( " MAILBOX " => $this -> utf_7_decode ( $mailbox ) , $token => $quotaroot );
}
return array ( $token => $ret );
break ;
case " STORAGE " :
$used = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$qmax = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
return array ( $token => array ( " USED " => $used , " QMAX " => $qmax ));
break ;
case " MESSAGE " :
$mused = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$mmax = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
return array ( $token => array ( " MUSED " => $mused , " MMAX " => $mmax ));
break ;
case " LEVEL " :
$lused = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$lmax = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
return array ( $token => array ( " LUSED " => $lused , " LMAX " => $lmax ));
break ;
case " MAILBOX " :
$mbused = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$mbmax = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
return array (); //throw away this information as this info seems quite useless with a QUOTA Response, AND we use the KEYWORD otherwise
break ;
case " EXPIRATION " :
$expused = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$expmax = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
return array (); //throw away this information as this info seems quite useless
break ;
case " FETCH " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
// Get the parsed pathenthesis
$struct_arr = $this -> _getEXTarray ( $str );
return $struct_arr ;
break ;
case " NAMESPACE " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $personal , false );
$struct_arr [ 'NAMESPACES' ][ 'personal' ] = $this -> _arrayfy_content ( $personal );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $others , false );
$struct_arr [ 'NAMESPACES' ][ 'others' ] = $this -> _arrayfy_content ( $others );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $shared , false );
$struct_arr [ 'NAMESPACES' ][ 'shared' ] = $this -> _arrayfy_content ( $shared );
return array ( $token => $struct_arr );
break ;
case " CAPABILITY " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 0 ) );
$struct_arr [ " CAPABILITIES " ] = explode ( ' ' , $str_line );
return array ( $token => $struct_arr );
break ;
case " STATUS " :
$mailbox = $this -> _parseOneStringResponse ( $str , __LINE__ , __FILE__ );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$ext = $this -> _getEXTarray ( $str );
$struct_arr [ " MAILBOX " ] = $this -> utf_7_decode ( $mailbox );
$struct_arr [ " ATTRIBUTES " ] = $ext ;
return array ( $token => $struct_arr );
break ;
case " LIST " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$params_arr = $this -> _arrayfy_content ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $hierarchydelim );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $mailbox_name );
$result_array = array ( " NAME_ATTRIBUTES " => $params_arr , " HIERACHY_DELIMITER " => $hierarchydelim , " MAILBOX_NAME " => $this -> utf_7_decode ( $mailbox_name ) );
return array ( $token => $result_array );
break ;
case " LSUB " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$params_arr = $this -> _arrayfy_content ( $str );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $hierarchydelim );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $mailbox_name );
$result_array = array ( " NAME_ATTRIBUTES " => $params_arr , " HIERACHY_DELIMITER " => $hierarchydelim , " MAILBOX_NAME " => $this -> utf_7_decode ( $mailbox_name ) );
return array ( $token => $result_array );
break ;
case " SEARCH " :
case 'SORT' :
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 1 ) );
$struct_arr [ $token . '_LIST' ] = explode ( ' ' , $str_line );
if ( count ( $struct_arr [ $token . '_LIST' ]) == 1 && $struct_arr [ $token . '_LIST' ][ 0 ] == '' ) {
$struct_arr [ $token . '_LIST' ] = null ;
}
return array ( $token => $struct_arr );
break ;
case " OK " :
/* TODO :
parse the [ .... ] part of the response , use the method
_getEXTarray ( & $str , '[' , $stopDelim = ']' )
*/
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 1 ) );
if ( $str_line [ 0 ] == '[' ){
$braceLen = $this -> _getClosingBracesPos ( $str_line , '[' , ']' );
$str_aux = '(' . substr ( $str_line , 1 , $braceLen - 1 ) . ')' ;
$ext_arr = $this -> _getEXTarray ( $str_aux );
//$ext_arr=array($token=>$this->_getEXTarray($str_aux));
} else {
//$ext_arr=$str_line;
$ext_arr = array ( $token => $str_line );
}
$result_array = $ext_arr ;
return $result_array ;
break ;
case " NO " :
/* TODO :
parse the [ .... ] part of the response , use the method
_getEXTarray ( & $str , '[' , $stopDelim = ']' )
*/
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 1 ) );
$result_array [] = @ array ( " COMMAND " => $token , " EXT " => $str_line );
return $result_array ;
break ;
case " BAD " :
/* TODO :
parse the [ .... ] part of the response , use the method
_getEXTarray ( & $str , '[' , $stopDelim = ']' )
*/
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 1 ) );
$result_array [] = array ( " COMMAND " => $token , " EXT " => $str_line );
return $result_array ;
break ;
case " BYE " :
/* TODO :
parse the [ .... ] part of the response , use the method
_getEXTarray ( & $str , '[' , $stopDelim = ']' )
*/
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 1 ) );
$result_array [] = array ( " COMMAND " => $token , " EXT " => $str_line );
return $result_array ;
break ;
case " LISTRIGHTS " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $mailbox );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $user );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $granted );
$ungranted = explode ( ' ' , rtrim ( substr ( $this -> _getToEOL ( $str , false ) , 1 ) ) );
$result_array = @ array ( " MAILBOX " => $this -> utf_7_decode ( $mailbox ) , " USER " => $user , " GRANTED " => $granted , " UNGRANTED " => $ungranted );
return $result_array ;
break ;
case " MYRIGHTS " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $mailbox );
// Patch to handle the alternate MYRIGHTS response from Courier-IMAP
if ( $str == ')' ){
$granted = $mailbox ;
$mailbox = $this -> currentMailbox ;
} else {
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $granted );
}
// End Patch
$result_array = array ( " MAILBOX " => $this -> utf_7_decode ( $mailbox ) , " GRANTED " => $granted );
return $result_array ;
break ;
case 'ACL' :
/*
RFC 4314 :
acl - data = " ACL " SP mailbox * ( SP identifier SP rights )
identifier = astring
rights = astring ;; only lowercase ASCII letters and digits are allowed .
*/
//$str = " INBOX\r\nA0006 OK Completed\r\n";
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $mailbox );
$arr = array ();
while ( substr ( $str , 0 , 2 ) != " \r \n " ) {
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $acl_user );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $acl_rights );
$arr [] = array ( 'USER' => $acl_user , 'RIGHTS' => $acl_rights );
}
$result_array = array ( 'MAILBOX' => $this -> utf_7_decode ( $mailbox ), 'USERS' => $arr );
return $result_array ;
break ;
case " ANNOTATION " :
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $mailbox );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $entry );
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
$attrs = $this -> _arrayfy_content ( $str );
$result_array = array ( 'MAILBOX' => $mailbox , 'ENTRY' => $entry , 'ATTRIBUTES' => $attrs );
return $result_array ;
break ;
case " " :
$this -> _prot_error ( " PROTOCOL ERROR!:str empty!! " , __LINE__ , __FILE__ );
break ;
case " ( " :
$this -> _prot_error ( " OPENING PARENTHESIS ERROR!!!!!!!!!!!!!!!!! " , __LINE__ , __FILE__ );
break ;
case " ) " :
//"CLOSING PARENTHESIS BREAK!!!!!!!"
break ;
case " \r \n " :
$this -> _prot_error ( " BREAK!!!!!!!!!!!!!!!!! " , __LINE__ , __FILE__ );
break ;
case ' ' :
// this can happen and we just ignore it
// This happens when - for example - fetch returns more than 1 parammeter
// for example you ask to get RFC822.SIZE and UID
//$this->_prot_error("SPACE BREAK!!!!!!!!!!!!!!!!!" , __LINE__ , __FILE__ );
break ;
default :
$body_token = strtoupper ( substr ( $token , 0 , 5 ));
$rfc822_token = strtoupper ( substr ( $token , 0 , 7 ));
if ( $body_token == 'BODY[' || $body_token == 'BODY.' || $rfc822_token == 'RFC822.' ) {
//echo "TOKEN:$token\n";
//$this->_getNextToken( $str , $mailbox );
return array ( $token => $this -> _parseContentresponse ( $str , $token ));
} else {
$this -> _prot_error ( " UNIMPLEMMENTED! I don't know the parameter ' $token ' !!! " , __LINE__ , __FILE__ );
}
break ;
}
return false ;
}
/*
* Verifies that the next character IS a space
*/
function _parseSpace ( & $str , $line , $file , $printError = true )
{
/*
This code repeats a lot in this class
so i make it a function to make all the code shorter
*/
$this -> _getNextToken ( $str , $space );
if ( $space != ' ' ){
$this -> _prot_error ( " must be a ' ' but is a ' $space ' !!!! " , $line , $file , $printError );
}
return $space ;
}
function _parseString ( & $str , $char , $line , $file )
{
/*
This code repeats a lot in this class
so i make it a function to make all the code shorter
*/
$this -> _getNextToken ( $str , $char_aux );
if ( strtoupper ( $char_aux ) != strtoupper ( $char ) ){
$this -> _prot_error ( " must be a $char but is a ' $char_aux ' !!!! " , $line , $file );
}
return $char_aux ;
}
function _genericImapResponseParser ( & $str , $cmdid = null )
{
$result_array = array ();
if ( $this -> _unParsedReturn ){
$unparsed_str = $str ;
}
$this -> _getNextToken ( $str , $token );
#error_log(" egw-pear::NET::IMAPProtocoll:_genericIMAPResponseParser: After retrieving the first token:".$token);
while ( $token != $cmdid && $str != '' ) {
if ( $token == '+' ) {
//if the token is + ignore the line
// TODO: verify that this is correct!!!
$this -> _getToEOL ( $str );
$this -> _getNextToken ( $str , $token );
}
$this -> _parseString ( $str , ' ' , __LINE__ , __FILE__ );
$this -> _getNextToken ( $str , $token );
if ( $token == '+' ) {
$this -> _getToEOL ( $str );
$this -> _getNextToken ( $str , $token );
} else {
if ( is_numeric ( $token )) {
// The token is a NUMBER so I store it
$msg_nro = $token ;
$this -> _parseSpace ( $str , __LINE__ , __FILE__ );
// I get the command
$this -> _getNextToken ( $str , $command );
if (( $ext_arr = $this -> _retrParsedResponse ( $str , $command , $msg_nro )) == false ) {
// if this bogus response cis a FLAGS () or EXPUNGE response
// the ignore it
if ( $command != 'FLAGS' && $command != 'EXPUNGE' ) {
$this -> _prot_error ( " bogus response!!!! " , __LINE__ , __FILE__ , false );
}
}
$result_array [] = array ( 'COMMAND' => $command , 'NRO' => $msg_nro , 'EXT' => $ext_arr );
} else {
// OK the token is not a NUMBER so it MUST be a COMMAND
$command = $token ;
/* Call the parser return the array
take care of bogus responses !
*/
if (( $ext_arr = $this -> _retrParsedResponse ( $str , $command )) == false ) {
$this -> _prot_error ( " bogus response!!!! (COMMAND: $command ) " , __LINE__ , __FILE__ );
}
$result_array [] = array ( 'COMMAND' => $command , 'EXT' => $ext_arr );
}
}
$this -> _getNextToken ( $str , $token );
$token = strtoupper ( $token );
if ( $token != " \r \n " && $token != '' ){
$this -> _prot_error ( " PARSE ERROR!!! must be a ' \\ r \\ n' here but is a ' $token '!!!! (getting the next line)|STR:| $str | " , __LINE__ , __FILE__ );
}
$this -> _getNextToken ( $str , $token );
if ( $token == " + " ){
//if the token is + ignore the line
// TODO: verify that this is correct!!!
$this -> _getToEOL ( $str );
$this -> _getNextToken ( $str , $token );
}
} //While
// OK we finish the UNTAGGED Response now we must parse the FINAL TAGGED RESPONSE
//TODO: make this a litle more elegant!
$this -> _parseSpace ( $str , __LINE__ , __FILE__ , false );
$this -> _getNextToken ( $str , $cmd_status );
$str_line = rtrim ( substr ( $this -> _getToEOL ( $str ) , 1 ) );
$response [ " RESPONSE " ] = array ( " CODE " => $cmd_status , " STR_CODE " => $str_line , " CMDID " => $cmdid );
$ret = $response ;
if ( ! empty ( $result_array )){
$ret = array_merge ( $ret , array ( " PARSED " => $result_array ) );
}
if ( $this -> _unParsedReturn ){
$unparsed [ " UNPARSED " ] = $unparsed_str ;
$ret = array_merge ( $ret , $unparsed );
}
if ( isset ( $status_arr ) ){
$status [ " STATUS " ] = $status_arr ;
$ret = array_merge ( $ret , $status );
}
return $ret ;
}
function _genericCommand ( $command , $params = '' )
{
if ( ! $this -> _connected ){
return new PEAR_Error ( " not connected! (CMD: $command ) " );
}
$cmdid = $this -> _getCmdId ();
$this -> _putCMD ( $cmdid , $command , $params );
$args = $this -> _getRawResponse ( $cmdid );
2011-09-21 11:24:13 +02:00
//error_log("egw-pear::NET::IMAPProtocoll:_genericCommand:".$command.' '.$params);
//error_log("egw-pear::NET::IMAPProtocoll:_genericCommand: ->result:".print_r($args,TRUE));
2011-07-01 12:37:47 +02:00
return $this -> _genericImapResponseParser ( $args , $cmdid );
}
2011-09-21 11:24:13 +02:00
function utf_7_encode ( $str )
2011-07-01 12:37:47 +02:00
{
if ( $this -> _useUTF_7 == false ){
return $str ;
}
if ( function_exists ( 'mb_convert_encoding' )) {
return mb_convert_encoding ( $str , " UTF7-IMAP " , " ISO-8859-1 " );
}
$encoded_utf7 = '' ;
$base64_part = '' ;
if ( is_array ( $str )){
return new PEAR_Error ( 'error' );
}
for ( $i = 0 ; $i < $this -> _getLineLength ( $str ); $i ++ ) {
//those chars should be base64 encoded
if ( (( ord ( $str [ $i ]) >= 39 ) and ( ord ( $str [ $i ]) <= 126 )) or (( ord ( $str [ $i ]) >= 32 ) and ( ord ( $str [ $i ]) <= 37 )) ) {
if ( $base64_part ) {
$encoded_utf7 = sprintf ( " %s&%s- " , $encoded_utf7 , str_replace ( '=' , '' , base64_encode ( $base64_part )) );
$base64_part = '' ;
}
$encoded_utf7 = sprintf ( " %s%s " , $encoded_utf7 , $str [ $i ]);
} else {
//handle &
if ( ord ( $str [ $i ]) == 38 ) {
if ( $base64_part ) {
$encoded_utf7 = sprintf ( " %s&%s- " , $encoded_utf7 , str_replace ( '=' , '' , base64_encode ( $base64_part )) );
$base64_part = '' ;
}
$encoded_utf7 = sprintf ( " %s&- " , $encoded_utf7 );
} else {
$base64_part = sprintf ( " %s%s " , $base64_part , $str [ $i ]);
//$base64_part = sprintf("%s%s%s",$base64_part , chr(0) , $str[$i]);
}
}
}
if ( $base64_part ) {
$encoded_utf7 = sprintf ( " %s&%s- " , $encoded_utf7 , str_replace ( '=' , '' , base64_encode ( $base64_part )) );
$base64_part = '' ;
}
return $encoded_utf7 ;
}
function utf_7_decode ( $str )
{
if ( $this -> _useUTF_7 == false ){
return $str ;
}
//return imap_utf7_decode($str);
if ( function_exists ( 'mb_convert_encoding' )) {
return mb_convert_encoding ( $str , " ISO-8859-1 " , " UTF7-IMAP " );
}
$base64_part = '' ;
$decoded_utf7 = '' ;
for ( $i = 0 ; $i < $this -> _getLineLength ( $str ); $i ++ ) {
if ( $this -> _getLineLength ( $base64_part ) > 0 ) {
if ( $str [ $i ] == '-' ) {
if ( $base64_part == '&' ) {
$decoded_utf7 = sprintf ( " %s& " , $decoded_utf7 );
} else {
$next_part_decoded = base64_decode ( substr ( $base64_part , 1 ) ) ;
$decoded_utf7 = sprintf ( " %s%s " , $decoded_utf7 , $next_part_decoded );
}
$base64_part = '' ;
} else {
$base64_part = sprintf ( " %s%s " , $base64_part , $str [ $i ] );
}
} else {
if ( $str [ $i ] == '&' ) {
$base64_part = '&' ;
} else {
$decoded_utf7 = sprintf ( " %s%s " , $decoded_utf7 , $str [ $i ] );
}
}
}
return $decoded_utf7 ;
}
/**
* Make CREATE / RENAME compatible option params
*
* @ param array $options options to format
* @ return string Returns a string for formatted parameters
*
* @ access private
* @ since 1.1
*/
function _getCreateParams ( $options )
{
$args = " " ;
if ( is_null ( $options ) === false && is_array ( $options ) === true ) {
foreach ( $options as $opt => $data ) {
switch ( strtoupper ( $opt )) {
case " PARTITION " :
$args .= sprintf ( " %s " , $this -> utf_7_encode ( $data ));
break ;
default :
// ignore any unknown options
break ;
}
}
}
return $args ;
}
/**
* Return true if the TLS negotiation was successful
*
* @ access public
* @ return mixed true on success , PEAR_Error on failure
*/
function cmdStartTLS ()
{
if ( PEAR :: isError ( $res = $this -> _genericCommand ( " STARTTLS " ))) {
return $res ;
}
if ( stream_socket_enable_crypto ( $this -> _socket -> fp , true , STREAM_CRYPTO_METHOD_TLS_CLIENT ) == false ) {
$msg = 'Failed to establish TLS connection' ;
return new PEAR_Error ( $msg );
}
if ( $this -> _debug === true ) {
echo " STARTTLS Negotiation Successful \n " ;
}
// RFC says we need to query the server capabilities again
if ( PEAR :: isError ( $res = $this -> cmdCapability () )) {
$msg = 'Failed to connect, server said: ' . $res -> getMessage ();
return new PEAR_Error ( $msg );
}
return true ;
}
function _getLineLength ( $string )
{
if ( extension_loaded ( 'mbstring' )) {
return mb_strlen ( $string , 'latin1' );
} else {
return strlen ( $string );
}
}
function _getSubstr ( $string , $start , $length = false )
{
if ( extension_loaded ( 'mbstring' )) {
if ( $length !== false ) {
return mb_substr ( $string , $start , $length , 'latin1' );
} else {
$strlen = mb_strlen ( $string , 'latin1' );
return mb_substr ( $string , $start , $strlen , 'latin1' );
}
} else {
if ( $length !== false ) {
return substr ( $string , $start , $length );
} else {
return substr ( $string , $start );
}
}
}
} //Class
?>