/**
* Net_Socket
*
- * PHP Version 4
+ * PHP Version 5
*
- * Copyright (c) 1997-2013 The PHP Group
+ * LICENSE:
*
- * This source file is subject to version 2.0 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.
+ * Copyright (c) 1997-2017 The PHP Group
+ * All rights reserved.
*
- * Authors: Stig Bakken <ssb@php.net>
- * Chuck Hagenbuch <chuck@horde.org>
+ * 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.
+ *
+ * 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
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category Net
* @package Net_Socket
* @author Stig Bakken <ssb@php.net>
* @author Chuck Hagenbuch <chuck@horde.org>
- * @copyright 1997-2003 The PHP Group
- * @license http://www.php.net/license/2_02.txt PHP 2.02
+ * @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
*/
* @package Net_Socket
* @author Stig Bakken <ssb@php.net>
* @author Chuck Hagenbuch <chuck@horde.org>
- * @copyright 1997-2003 The PHP Group
- * @license http://www.php.net/license/2_02.txt PHP 2.02
+ * @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
*/
- var $fp = null;
+ public $fp = null;
/**
* Whether the socket is blocking. Defaults to true.
* @var boolean $blocking
*/
- var $blocking = true;
+ public $blocking = true;
/**
* Whether the socket is persistent. Defaults to false.
* @var boolean $persistent
*/
- var $persistent = false;
+ public $persistent = false;
/**
* The IP address to connect to.
* @var string $addr
*/
- var $addr = '';
+ public $addr = '';
/**
* The port number to connect to.
* @var integer $port
*/
- var $port = 0;
+ 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
*/
- var $timeout = null;
+ public $timeout = null;
/**
* Number of bytes to read at a time in readLine() and
* readAll(). Defaults to 2048.
* @var integer $lineLength
*/
- var $lineLength = 2048;
+ public $lineLength = 2048;
/**
* The string to use as a newline terminator. Usually "\r\n" or "\n".
* @var string $newline
*/
- var $newline = "\r\n";
+ public $newline = "\r\n";
/**
* Connect to the specified port. If called when the socket is
* already connected, it disconnects and connects again.
*
- * @param string $addr IP address or host name (may be with protocol prefix).
- * @param integer $port TCP port number.
+ * @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.
+ * @param integer $timeout (optional) Connection socket timeout.
+ * @param array $options See options for stream_context_create.
*
* @access public
*
* @return boolean|PEAR_Error True on success or a PEAR_Error on failure.
*/
- function connect($addr, $port = 0, $persistent = null,
- $timeout = null, $options = null)
- {
+ public function connect(
+ $addr,
+ $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 = $addr;
+ if (strspn($addr, ':.0123456789') === strlen($addr)) {
+ $this->addr = strpos($addr, ':') !== false ? '[' . $addr . ']' : $addr;
+ } else {
+ $this->addr = $addr;
+ }
}
$this->port = $port % 65536;
}
$openfunc = $this->persistent ? 'pfsockopen' : 'fsockopen';
- $errno = 0;
- $errstr = '';
+ $errno = 0;
+ $errstr = '';
- $old_track_errors = @ini_set('track_errors', 1);
+ 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');
}
$addr = $this->addr . ':' . $this->port;
- $fp = stream_socket_client($addr, $errno, $errstr,
- $timeout, $flags, $context);
+ $fp = @stream_socket_client($addr, $errno, $errstr,
+ $timeout, $flags, $context);
} else {
$fp = @$openfunc($this->addr, $this->port, $errno,
- $errstr, $timeout, $context);
+ $errstr, $timeout, $context);
}
} else {
$fp = @$openfunc($this->addr, $this->port, $errno, $errstr, $timeout);
}
if (!$fp) {
- if ($errno == 0 && !strlen($errstr) && isset($php_errormsg)) {
- $errstr = $php_errormsg;
+ if ($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'];
+ }
+ }
}
- @ini_set('track_errors', $old_track_errors);
+
return $this->raiseError($errstr, $errno);
}
- @ini_set('track_errors', $old_track_errors);
+ if (isset($old_track_errors)) {
+ @ini_set('track_errors', $old_track_errors);
+ }
+
$this->fp = $fp;
$this->setTimeout();
+
return $this->setBlocking($this->blocking);
}
* @access public
* @return mixed true on success or a PEAR_Error instance otherwise
*/
- function disconnect()
+ public function disconnect()
{
if (!is_resource($this->fp)) {
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)
+ * @param string $newline Newline character(s)
* @return boolean True
*/
- function setNewline($newline)
+ public function setNewline($newline)
{
$this->newline = $newline;
+
return true;
}
* @access public
* @return boolean The current blocking mode.
*/
- function isBlocking()
+ public function isBlocking()
{
return $this->blocking;
}
* @access public
* @return mixed true on success or a PEAR_Error instance otherwise
*/
- function setBlocking($mode)
+ 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 $seconds Seconds.
* @param integer $microseconds Microseconds, optional.
*
* @access public
* @return mixed True on success or false on failure or
* a PEAR_Error instance when not connected
*/
- function setTimeout($seconds = null, $microseconds = null)
+ public function setTimeout($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);
+ $seconds = (int)$this->timeout;
+ $microseconds = (int)(($this->timeout - $seconds) * 1000000);
} else {
- $this->timeout = $seconds + $microseconds/1000000;
+ $this->timeout = $seconds + $microseconds / 1000000;
}
if ($this->timeout > 0) {
- return stream_set_timeout($this->fp, (int) $seconds, (int) $microseconds);
- }
- else {
+ return stream_set_timeout($this->fp, (int)$seconds, (int)$microseconds);
+ } else {
return false;
}
}
* @access public
* @return mixed on success or an PEAR_Error object otherwise
*/
- function setWriteBuffer($size)
+ public function setWriteBuffer($size)
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
$returned = stream_set_write_buffer($this->fp, $size);
- if ($returned == 0) {
+ if ($returned === 0) {
return true;
}
+
return $this->raiseError('Cannot set write buffer.');
}
* @return mixed Array containing information about existing socket
* resource or a PEAR_Error instance otherwise
*/
- function getStatus()
+ public function getStatus()
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
* @return mixed $size bytes of data from the socket, or a PEAR_Error if
* not connected. If an error occurs, FALSE is returned.
*/
- function gets($size = null)
+ public function gets($size = null)
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
- if (is_null($size)) {
+ if (null === $size) {
return @fgets($this->fp);
} else {
return @fgets($this->fp, $size);
* @param integer $size The number of bytes to read from the socket.
*
* @access public
- * @return $size bytes of data from the socket, or a PEAR_Error if
+ * @return string $size bytes of data from the socket, or a PEAR_Error if
* not connected.
*/
- function read($size)
+ public function read($size)
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
/**
* Write a specified amount of data.
*
- * @param string $data Data to write.
+ * @param string $data Data to write.
* @param integer $blocksize Amount of data to write at once.
* NULL means all at once.
*
* If the write fails, returns false.
* If the socket times out, returns an instance of PEAR_Error.
*/
- function write($data, $blocksize = null)
+ public function write($data, $blocksize = null)
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
- if (is_null($blocksize) && !OS_WINDOWS) {
+ if (null === $blocksize && !OS_WINDOWS) {
$written = @fwrite($this->fp, $data);
// Check for timeout or lost connection
- if (!$written) {
+ if ($written === false) {
$meta_data = $this->getStatus();
if (!is_array($meta_data)) {
return $written;
} else {
- if (is_null($blocksize)) {
+ if (null === $blocksize) {
$blocksize = 1024;
}
- $pos = 0;
+ $pos = 0;
$size = strlen($data);
while ($pos < $size) {
$written = @fwrite($this->fp, substr($data, $pos, $blocksize));
// Check for timeout or lost connection
- if (!$written) {
+ if ($written === false) {
$meta_data = $this->getStatus();
if (!is_array($meta_data)) {
* @access public
* @return mixed fwrite() result, or PEAR_Error when not connected
*/
- function writeLine($data)
+ public function writeLine($data)
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
* @access public
* @return bool
*/
- function eof()
+ public function eof()
{
return (!is_resource($this->fp) || feof($this->fp));
}
* Reads a byte of data
*
* @access public
- * @return 1 byte of data from the socket, or a PEAR_Error if
+ * @return integer 1 byte of data from the socket, or a PEAR_Error if
* not connected.
*/
- function readByte()
+ public function readByte()
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
* Reads a word of data
*
* @access public
- * @return 1 word of data from the socket, or a PEAR_Error if
+ * @return integer 1 word of data from the socket, or a PEAR_Error if
* not connected.
*/
- function readWord()
+ public function readWord()
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
$buf = @fread($this->fp, 2);
+
return (ord($buf[0]) + (ord($buf[1]) << 8));
}
* @return integer 1 int of data from the socket, or a PEAR_Error if
* not connected.
*/
- function readInt()
+ 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));
+ (ord($buf[2]) << 16) + (ord($buf[3]) << 24));
}
/**
* @return string, or a PEAR_Error if
* not connected.
*/
- function readString()
+ public function readString()
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
$string = '';
- while (($char = @fread($this->fp, 1)) != "\x00") {
+ while (($char = @fread($this->fp, 1)) !== "\x00") {
$string .= $char;
}
+
return $string;
}
* Reads an IP Address and returns it in a dot formatted string
*
* @access public
- * @return Dot formatted string, or a PEAR_Error if
+ * @return string Dot formatted string, or a PEAR_Error if
* not connected.
*/
- function readIPAddress()
+ public function readIPAddress()
{
if (!is_resource($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]));
+ ord($buf[2]), ord($buf[3]));
}
/**
* comes first. Strips the trailing newline from the returned data.
*
* @access public
- * @return All available data up to a newline, without that
+ * @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.
*/
- function readLine()
+ public function readLine()
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
return rtrim($line, $this->newline);
}
}
+
return $line;
}
* @return string All data until the socket closes, or a PEAR_Error if
* not connected.
*/
- function readAll()
+ public function readAll()
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
$data = '';
- while (!feof($this->fp)) {
+ $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 $state Which of read/write/error to check for.
+ * @param integer $tv_sec Number of seconds for timeout.
* @param integer $tv_usec Number of microseconds for timeout.
*
* @access public
* @return False if select fails, integer describing which of read/write/error
* are ready, or PEAR_Error if not connected.
*/
- function select($state, $tv_sec, $tv_usec = 0)
+ public function select($state, $tv_sec, $tv_usec = 0)
{
if (!is_resource($this->fp)) {
return $this->raiseError('not connected');
}
- $read = null;
- $write = null;
+ $read = null;
+ $write = null;
$except = null;
if ($state & NET_SOCKET_READ) {
$read[] = $this->fp;
$except[] = $this->fp;
}
if (false === ($sr = stream_select($read, $write, $except,
- $tv_sec, $tv_usec))) {
+ $tv_sec, $tv_usec))
+ ) {
return false;
}
if (count($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
+ * @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()
+ * @param integer $type Type of encryption. See stream_socket_enable_crypto()
* for values.
*
* @see http://se.php.net/manual/en/function.stream-socket-enable-crypto.php
* A PEAR_Error object is returned if the socket is not
* connected
*/
- function enableCrypto($enabled, $type)
+ public function enableCrypto($enabled, $type)
{
- if (version_compare(phpversion(), "5.1.0", ">=")) {
+ if (version_compare(phpversion(), '5.1.0', '>=')) {
if (!is_resource($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);
}
}
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