forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			739 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			739 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| /**
 | |
|  * Net_Socket
 | |
|  *
 | |
|  * PHP Version 5
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|  *
 | |
|  * LICENSE:
 | |
|  *
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|  * Copyright (c) 1997-2017 The PHP Group
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|  * All rights reserved.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
 | |
|  * modification, are permitted provided that the following conditions
 | |
|  * are met:
 | |
|  *
 | |
|  * o Redistributions of source code must retain the above copyright
 | |
|  *   notice, this list of conditions and the following disclaimer.
 | |
|  * o Redistributions in binary form must reproduce the above copyright
 | |
|  *   notice, this list of conditions and the following disclaimer in the
 | |
|  *   documentation and/or other materials provided with the distribution.
 | |
|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 | |
|  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 | |
|  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 | |
|  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 | |
|  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 | |
|  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 | |
|  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 | |
|  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 | |
|  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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|  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 | |
|  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | |
|  *
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|  * @category  Net
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|  * @package   Net_Socket
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|  * @author    Stig Bakken <ssb@php.net>
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|  * @author    Chuck Hagenbuch <chuck@horde.org>
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|  * @copyright 1997-2017 The PHP Group
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|  * @license   http://opensource.org/licenses/bsd-license.php BSD-2-Clause
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|  * @link      http://pear.php.net/packages/Net_Socket
 | |
|  */
 | |
| 
 | |
| require_once 'PEAR.php';
 | |
| 
 | |
| define('NET_SOCKET_READ', 1);
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| define('NET_SOCKET_WRITE', 2);
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| define('NET_SOCKET_ERROR', 4);
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| 
 | |
| /**
 | |
|  * Generalized Socket class.
 | |
|  *
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|  * @category  Net
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|  * @package   Net_Socket
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|  * @author    Stig Bakken <ssb@php.net>
 | |
|  * @author    Chuck Hagenbuch <chuck@horde.org>
 | |
|  * @copyright 1997-2017 The PHP Group
 | |
|  * @license   http://opensource.org/licenses/bsd-license.php BSD-2-Clause
 | |
|  * @link      http://pear.php.net/packages/Net_Socket
 | |
|  */
 | |
| class Net_Socket extends PEAR
 | |
| {
 | |
|     /**
 | |
|      * Socket file pointer.
 | |
|      * @var resource $fp
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|      */
 | |
|     public $fp = null;
 | |
| 
 | |
|     /**
 | |
|      * Whether the socket is blocking. Defaults to true.
 | |
|      * @var boolean $blocking
 | |
|      */
 | |
|     public $blocking = true;
 | |
| 
 | |
|     /**
 | |
|      * Whether the socket is persistent. Defaults to false.
 | |
|      * @var boolean $persistent
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|      */
 | |
|     public $persistent = false;
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| 
 | |
|     /**
 | |
|      * The IP address to connect to.
 | |
|      * @var string $addr
 | |
|      */
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|     public $addr = '';
 | |
| 
 | |
|     /**
 | |
|      * The port number to connect to.
 | |
|      * @var integer $port
 | |
|      */
 | |
|     public $port = 0;
 | |
| 
 | |
|     /**
 | |
|      * Number of seconds to wait on socket operations before assuming
 | |
|      * there's no more data. Defaults to no timeout.
 | |
|      * @var integer|float $timeout
 | |
|      */
 | |
|     public $timeout = null;
 | |
| 
 | |
|     /**
 | |
|      * Number of bytes to read at a time in readLine() and
 | |
|      * readAll(). Defaults to 2048.
 | |
|      * @var integer $lineLength
 | |
|      */
 | |
|     public $lineLength = 2048;
 | |
| 
 | |
|     /**
 | |
|      * The string to use as a newline terminator. Usually "\r\n" or "\n".
 | |
|      * @var string $newline
 | |
|      */
 | |
|     public $newline = "\r\n";
 | |
| 
 | |
|     /**
 | |
|      * Connect to the specified port. If called when the socket is
 | |
|      * already connected, it disconnects and connects again.
 | |
|      *
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|      * @param string $addr IP address or host name (may be with protocol prefix).
 | |
|      * @param integer $port TCP port number.
 | |
|      * @param boolean $persistent (optional) Whether the connection is
 | |
|      *                            persistent (kept open between requests
 | |
|      *                            by the web server).
 | |
|      * @param integer $timeout (optional) Connection socket timeout.
 | |
|      * @param array $options See options for stream_context_create.
 | |
|      *
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|      * @access public
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|      *
 | |
|      * @return boolean|PEAR_Error  True on success or a PEAR_Error on failure.
 | |
|      */
 | |
|     public function connect(
 | |
|         $addr,
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|         $port = 0,
 | |
|         $persistent = null,
 | |
|         $timeout = null,
 | |
|         $options = null
 | |
|     ) {
 | |
|         if (is_resource($this->fp)) {
 | |
|             @fclose($this->fp);
 | |
|             $this->fp = null;
 | |
|         }
 | |
| 
 | |
|         if (!$addr) {
 | |
|             return $this->raiseError('$addr cannot be empty');
 | |
|         } else {
 | |
|             if (strspn($addr, ':.0123456789') === strlen($addr)) {
 | |
|                 $this->addr = strpos($addr, ':') !== false ? '[' . $addr . ']' : $addr;
 | |
|             } else {
 | |
|                 $this->addr = $addr;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         $this->port = $port % 65536;
 | |
| 
 | |
|         if ($persistent !== null) {
 | |
|             $this->persistent = $persistent;
 | |
|         }
 | |
| 
 | |
|         $openfunc = $this->persistent ? 'pfsockopen' : 'fsockopen';
 | |
|         $errno = 0;
 | |
|         $errstr = '';
 | |
| 
 | |
|         if (function_exists('error_clear_last')) {
 | |
|             error_clear_last();
 | |
|         } else {
 | |
|             $old_track_errors = @ini_set('track_errors', 1);
 | |
|         }
 | |
| 
 | |
|         if ($timeout <= 0) {
 | |
|             $timeout = @ini_get('default_socket_timeout');
 | |
|         }
 | |
| 
 | |
|         if ($options && function_exists('stream_context_create')) {
 | |
|             $context = stream_context_create($options);
 | |
| 
 | |
|             // Since PHP 5 fsockopen doesn't allow context specification
 | |
|             if (function_exists('stream_socket_client')) {
 | |
|                 $flags = STREAM_CLIENT_CONNECT;
 | |
| 
 | |
|                 if ($this->persistent) {
 | |
|                     $flags = STREAM_CLIENT_PERSISTENT;
 | |
|                 }
 | |
| 
 | |
|                 $addr = $this->addr . ':' . $this->port;
 | |
|                 $fp = @stream_socket_client($addr, $errno, $errstr,
 | |
|                     $timeout, $flags, $context);
 | |
|             } else {
 | |
|                 $fp = @$openfunc($this->addr, $this->port, $errno,
 | |
|                     $errstr, $timeout, $context);
 | |
|             }
 | |
|         } else {
 | |
|             $fp = @$openfunc($this->addr, $this->port, $errno, $errstr, $timeout);
 | |
|         }
 | |
| 
 | |
|         if (!$fp) {
 | |
|             if ($errno === 0 && !strlen($errstr)) {
 | |
|                 $errstr = '';
 | |
|                 if (isset($old_track_errors)) {
 | |
|                     $errstr = $php_errormsg ?: '';  
 | |
|                     @ini_set('track_errors', $old_track_errors);
 | |
|                 } else {
 | |
|                     $lastError = error_get_last();
 | |
|                     if (isset($lastError['message'])) {
 | |
|                         $errstr = $lastError['message'];
 | |
|                     }
 | |
|                 }
 | |
|             }
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| 
 | |
|             return $this->raiseError($errstr, $errno);
 | |
|         }
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| 
 | |
|         if (isset($old_track_errors)) {
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|             @ini_set('track_errors', $old_track_errors);
 | |
|         }
 | |
| 
 | |
|         $this->fp = $fp;
 | |
|         $this->setTimeout();
 | |
| 
 | |
|         return $this->setBlocking($this->blocking);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Disconnects from the peer, closes the socket.
 | |
|      *
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|      * @access public
 | |
|      * @return mixed true on success or a PEAR_Error instance otherwise
 | |
|      */
 | |
|     public function disconnect()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
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|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         @fclose($this->fp);
 | |
|         $this->fp = null;
 | |
| 
 | |
|         return true;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Set the newline character/sequence to use.
 | |
|      *
 | |
|      * @param string $newline Newline character(s)
 | |
|      * @return boolean True
 | |
|      */
 | |
|     public function setNewline($newline)
 | |
|     {
 | |
|         $this->newline = $newline;
 | |
| 
 | |
|         return true;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Find out if the socket is in blocking mode.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return boolean  The current blocking mode.
 | |
|      */
 | |
|     public function isBlocking()
 | |
|     {
 | |
|         return $this->blocking;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets whether the socket connection should be blocking or
 | |
|      * not. A read call to a non-blocking socket will return immediately
 | |
|      * if there is no data available, whereas it will block until there
 | |
|      * is data for blocking sockets.
 | |
|      *
 | |
|      * @param boolean $mode True for blocking sockets, false for nonblocking.
 | |
|      *
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|      * @access public
 | |
|      * @return mixed true on success or a PEAR_Error instance otherwise
 | |
|      */
 | |
|     public function setBlocking($mode)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $this->blocking = $mode;
 | |
|         stream_set_blocking($this->fp, (int)$this->blocking);
 | |
| 
 | |
|         return true;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets the timeout value on socket descriptor,
 | |
|      * expressed in the sum of seconds and microseconds
 | |
|      *
 | |
|      * @param integer $seconds Seconds.
 | |
|      * @param integer $microseconds Microseconds, optional.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return mixed True on success or false on failure or
 | |
|      *               a PEAR_Error instance when not connected
 | |
|      */
 | |
|     public function setTimeout($seconds = null, $microseconds = null)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         if ($seconds === null && $microseconds === null) {
 | |
|             $seconds = (int)$this->timeout;
 | |
|             $microseconds = (int)(($this->timeout - $seconds) * 1000000);
 | |
|         } else {
 | |
|             $this->timeout = $seconds + $microseconds / 1000000;
 | |
|         }
 | |
| 
 | |
|         if ($this->timeout > 0) {
 | |
|             return stream_set_timeout($this->fp, (int)$seconds, (int)$microseconds);
 | |
|         } else {
 | |
|             return false;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets the file buffering size on the stream.
 | |
|      * See php's stream_set_write_buffer for more information.
 | |
|      *
 | |
|      * @param integer $size Write buffer size.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return mixed on success or an PEAR_Error object otherwise
 | |
|      */
 | |
|     public function setWriteBuffer($size)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $returned = stream_set_write_buffer($this->fp, $size);
 | |
|         if ($returned === 0) {
 | |
|             return true;
 | |
|         }
 | |
| 
 | |
|         return $this->raiseError('Cannot set write buffer.');
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns information about an existing socket resource.
 | |
|      * Currently returns four entries in the result array:
 | |
|      *
 | |
|      * <p>
 | |
|      * timed_out (bool) - The socket timed out waiting for data<br>
 | |
|      * blocked (bool) - The socket was blocked<br>
 | |
|      * eof (bool) - Indicates EOF event<br>
 | |
|      * unread_bytes (int) - Number of bytes left in the socket buffer<br>
 | |
|      * </p>
 | |
|      *
 | |
|      * @access public
 | |
|      * @return mixed Array containing information about existing socket
 | |
|      *               resource or a PEAR_Error instance otherwise
 | |
|      */
 | |
|     public function getStatus()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         return stream_get_meta_data($this->fp);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Get a specified line of data
 | |
|      *
 | |
|      * @param int $size Reading ends when size - 1 bytes have been read,
 | |
|      *                  or a newline or an EOF (whichever comes first).
 | |
|      *                  If no size is specified, it will keep reading from
 | |
|      *                  the stream until it reaches the end of the line.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return mixed $size bytes of data from the socket, or a PEAR_Error if
 | |
|      *         not connected. If an error occurs, FALSE is returned.
 | |
|      */
 | |
|     public function gets($size = null)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         if (null === $size) {
 | |
|             return @fgets($this->fp);
 | |
|         } else {
 | |
|             return @fgets($this->fp, $size);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Read a specified amount of data. This is guaranteed to return,
 | |
|      * and has the added benefit of getting everything in one fread()
 | |
|      * chunk; if you know the size of the data you're getting
 | |
|      * beforehand, this is definitely the way to go.
 | |
|      *
 | |
|      * @param integer $size The number of bytes to read from the socket.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return string $size bytes of data from the socket, or a PEAR_Error if
 | |
|      *         not connected.
 | |
|      */
 | |
|     public function read($size)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         return @fread($this->fp, $size);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Write a specified amount of data.
 | |
|      *
 | |
|      * @param string $data Data to write.
 | |
|      * @param integer $blocksize Amount of data to write at once.
 | |
|      *                           NULL means all at once.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return mixed If the socket is not connected, returns an instance of
 | |
|      *               PEAR_Error.
 | |
|      *               If the write succeeds, returns the number of bytes written.
 | |
|      *               If the write fails, returns false.
 | |
|      *               If the socket times out, returns an instance of PEAR_Error.
 | |
|      */
 | |
|     public function write($data, $blocksize = null)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         if (null === $blocksize && !OS_WINDOWS) {
 | |
|             $written = @fwrite($this->fp, $data);
 | |
| 
 | |
|             // Check for timeout or lost connection
 | |
|             if ($written === false) {
 | |
|                 $meta_data = $this->getStatus();
 | |
| 
 | |
|                 if (!is_array($meta_data)) {
 | |
|                     return $meta_data; // PEAR_Error
 | |
|                 }
 | |
| 
 | |
|                 if (!empty($meta_data['timed_out'])) {
 | |
|                     return $this->raiseError('timed out');
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             return $written;
 | |
|         } else {
 | |
|             if (null === $blocksize) {
 | |
|                 $blocksize = 1024;
 | |
|             }
 | |
| 
 | |
|             $pos = 0;
 | |
|             $size = strlen($data);
 | |
|             while ($pos < $size) {
 | |
|                 $written = @fwrite($this->fp, substr($data, $pos, $blocksize));
 | |
| 
 | |
|                 // Check for timeout or lost connection
 | |
|                 if ($written === false) {
 | |
|                     $meta_data = $this->getStatus();
 | |
| 
 | |
|                     if (!is_array($meta_data)) {
 | |
|                         return $meta_data; // PEAR_Error
 | |
|                     }
 | |
| 
 | |
|                     if (!empty($meta_data['timed_out'])) {
 | |
|                         return $this->raiseError('timed out');
 | |
|                     }
 | |
| 
 | |
|                     return $written;
 | |
|                 }
 | |
| 
 | |
|                 $pos += $written;
 | |
|             }
 | |
| 
 | |
|             return $pos;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Write a line of data to the socket, followed by a trailing newline.
 | |
|      *
 | |
|      * @param string $data Data to write
 | |
|      *
 | |
|      * @access public
 | |
|      * @return mixed fwrite() result, or PEAR_Error when not connected
 | |
|      */
 | |
|     public function writeLine($data)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         return fwrite($this->fp, $data . $this->newline);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Tests for end-of-file on a socket descriptor.
 | |
|      *
 | |
|      * Also returns true if the socket is disconnected.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return bool
 | |
|      */
 | |
|     public function eof()
 | |
|     {
 | |
|         return (!is_resource($this->fp) || feof($this->fp));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Reads a byte of data
 | |
|      *
 | |
|      * @access public
 | |
|      * @return integer 1 byte of data from the socket, or a PEAR_Error if
 | |
|      *         not connected.
 | |
|      */
 | |
|     public function readByte()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         return ord(@fread($this->fp, 1));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Reads a word of data
 | |
|      *
 | |
|      * @access public
 | |
|      * @return integer 1 word of data from the socket, or a PEAR_Error if
 | |
|      *         not connected.
 | |
|      */
 | |
|     public function readWord()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $buf = @fread($this->fp, 2);
 | |
| 
 | |
|         return (ord($buf[0]) + (ord($buf[1]) << 8));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Reads an int of data
 | |
|      *
 | |
|      * @access public
 | |
|      * @return integer  1 int of data from the socket, or a PEAR_Error if
 | |
|      *                  not connected.
 | |
|      */
 | |
|     public function readInt()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $buf = @fread($this->fp, 4);
 | |
| 
 | |
|         return (ord($buf[0]) + (ord($buf[1]) << 8) +
 | |
|             (ord($buf[2]) << 16) + (ord($buf[3]) << 24));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Reads a zero-terminated string of data
 | |
|      *
 | |
|      * @access public
 | |
|      * @return string, or a PEAR_Error if
 | |
|      *         not connected.
 | |
|      */
 | |
|     public function readString()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $string = '';
 | |
|         while (($char = @fread($this->fp, 1)) !== "\x00") {
 | |
|             $string .= $char;
 | |
|         }
 | |
| 
 | |
|         return $string;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Reads an IP Address and returns it in a dot formatted string
 | |
|      *
 | |
|      * @access public
 | |
|      * @return string Dot formatted string, or a PEAR_Error if
 | |
|      *         not connected.
 | |
|      */
 | |
|     public function readIPAddress()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $buf = @fread($this->fp, 4);
 | |
| 
 | |
|         return sprintf('%d.%d.%d.%d', ord($buf[0]), ord($buf[1]),
 | |
|             ord($buf[2]), ord($buf[3]));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Read until either the end of the socket or a newline, whichever
 | |
|      * comes first. Strips the trailing newline from the returned data.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return string All available data up to a newline, without that
 | |
|      *         newline, or until the end of the socket, or a PEAR_Error if
 | |
|      *         not connected.
 | |
|      */
 | |
|     public function readLine()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $line = '';
 | |
| 
 | |
|         $timeout = time() + $this->timeout;
 | |
| 
 | |
|         while (!feof($this->fp) && (!$this->timeout || time() < $timeout)) {
 | |
|             $line .= @fgets($this->fp, $this->lineLength);
 | |
|             if (substr($line, -1) == "\n") {
 | |
|                 return rtrim($line, $this->newline);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return $line;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Read until the socket closes, or until there is no more data in
 | |
|      * the inner PHP buffer. If the inner buffer is empty, in blocking
 | |
|      * mode we wait for at least 1 byte of data. Therefore, in
 | |
|      * blocking mode, if there is no data at all to be read, this
 | |
|      * function will never exit (unless the socket is closed on the
 | |
|      * remote end).
 | |
|      *
 | |
|      * @access public
 | |
|      *
 | |
|      * @return string  All data until the socket closes, or a PEAR_Error if
 | |
|      *                 not connected.
 | |
|      */
 | |
|     public function readAll()
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $data = '';
 | |
|         $timeout = time() + $this->timeout;
 | |
| 
 | |
|         while (!feof($this->fp) && (!$this->timeout || time() < $timeout)) {
 | |
|             $data .= @fread($this->fp, $this->lineLength);
 | |
|         }
 | |
| 
 | |
|         return $data;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Runs the equivalent of the select() system call on the socket
 | |
|      * with a timeout specified by tv_sec and tv_usec.
 | |
|      *
 | |
|      * @param integer $state Which of read/write/error to check for.
 | |
|      * @param integer $tv_sec Number of seconds for timeout.
 | |
|      * @param integer $tv_usec Number of microseconds for timeout.
 | |
|      *
 | |
|      * @access public
 | |
|      * @return False if select fails, integer describing which of read/write/error
 | |
|      *         are ready, or PEAR_Error if not connected.
 | |
|      */
 | |
|     public function select($state, $tv_sec, $tv_usec = 0)
 | |
|     {
 | |
|         if (!is_resource($this->fp)) {
 | |
|             return $this->raiseError('not connected');
 | |
|         }
 | |
| 
 | |
|         $read = null;
 | |
|         $write = null;
 | |
|         $except = null;
 | |
|         if ($state & NET_SOCKET_READ) {
 | |
|             $read[] = $this->fp;
 | |
|         }
 | |
|         if ($state & NET_SOCKET_WRITE) {
 | |
|             $write[] = $this->fp;
 | |
|         }
 | |
|         if ($state & NET_SOCKET_ERROR) {
 | |
|             $except[] = $this->fp;
 | |
|         }
 | |
|         if (false === ($sr = stream_select($read, $write, $except,
 | |
|                 $tv_sec, $tv_usec))
 | |
|         ) {
 | |
|             return false;
 | |
|         }
 | |
| 
 | |
|         $result = 0;
 | |
|         if (count($read)) {
 | |
|             $result |= NET_SOCKET_READ;
 | |
|         }
 | |
|         if (count($write)) {
 | |
|             $result |= NET_SOCKET_WRITE;
 | |
|         }
 | |
|         if (count($except)) {
 | |
|             $result |= NET_SOCKET_ERROR;
 | |
|         }
 | |
| 
 | |
|         return $result;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Turns encryption on/off on a connected socket.
 | |
|      *
 | |
|      * @param bool $enabled Set this parameter to true to enable encryption
 | |
|      *                         and false to disable encryption.
 | |
|      * @param integer $type Type of encryption. See stream_socket_enable_crypto()
 | |
|      *                         for values.
 | |
|      *
 | |
|      * @see    http://se.php.net/manual/en/function.stream-socket-enable-crypto.php
 | |
|      * @access public
 | |
|      * @return false on error, true on success and 0 if there isn't enough data
 | |
|      *         and the user should try again (non-blocking sockets only).
 | |
|      *         A PEAR_Error object is returned if the socket is not
 | |
|      *         connected
 | |
|      */
 | |
|     public function enableCrypto($enabled, $type)
 | |
|     {
 | |
|         if (version_compare(phpversion(), '5.1.0', '>=')) {
 | |
|             if (!is_resource($this->fp)) {
 | |
|                 return $this->raiseError('not connected');
 | |
|             }
 | |
| 
 | |
|             return @stream_socket_enable_crypto($this->fp, $enabled, $type);
 | |
|         } else {
 | |
|             $msg = 'Net_Socket::enableCrypto() requires php version >= 5.1.0';
 | |
| 
 | |
|             return $this->raiseError($msg);
 | |
|         }
 | |
|     }
 | |
| 
 | |
| }
 |