Updating external libraries for net access
This commit is contained in:
Mikael Nordfeldth
283
extlib/HTTP/Request2/SocketWrapper.php
Normal file
283
extlib/HTTP/Request2/SocketWrapper.php
Normal file
@@ -0,0 +1,283 @@
|
||||
<?php
|
||||
/**
|
||||
* Socket wrapper class used by Socket Adapter
|
||||
*
|
||||
* PHP version 5
|
||||
*
|
||||
* LICENSE:
|
||||
*
|
||||
* Copyright (c) 2008-2012, Alexey Borzov <avb@php.net>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * 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.
|
||||
* * The names of the authors may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* 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 OWNER 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 HTTP
|
||||
* @package HTTP_Request2
|
||||
* @author Alexey Borzov <avb@php.net>
|
||||
* @license http://opensource.org/licenses/bsd-license.php New BSD License
|
||||
* @version SVN: $Id: SocketWrapper.php 324935 2012-04-07 07:10:50Z avb $
|
||||
* @link http://pear.php.net/package/HTTP_Request2
|
||||
*/
|
||||
|
||||
/** Exception classes for HTTP_Request2 package */
|
||||
require_once 'HTTP/Request2/Exception.php';
|
||||
|
||||
/**
|
||||
* Socket wrapper class used by Socket Adapter
|
||||
*
|
||||
* Needed to properly handle connection errors, global timeout support and
|
||||
* similar things. Loosely based on Net_Socket used by older HTTP_Request.
|
||||
*
|
||||
* @category HTTP
|
||||
* @package HTTP_Request2
|
||||
* @author Alexey Borzov <avb@php.net>
|
||||
* @license http://opensource.org/licenses/bsd-license.php New BSD License
|
||||
* @version Release: 2.1.1
|
||||
* @link http://pear.php.net/package/HTTP_Request2
|
||||
* @link http://pear.php.net/bugs/bug.php?id=19332
|
||||
* @link http://tools.ietf.org/html/rfc1928
|
||||
*/
|
||||
class HTTP_Request2_SocketWrapper
|
||||
{
|
||||
/**
|
||||
* PHP warning messages raised during stream_socket_client() call
|
||||
* @var array
|
||||
*/
|
||||
protected $connectionWarnings = array();
|
||||
|
||||
/**
|
||||
* Connected socket
|
||||
* @var resource
|
||||
*/
|
||||
protected $socket;
|
||||
|
||||
/**
|
||||
* Sum of start time and global timeout, exception will be thrown if request continues past this time
|
||||
* @var integer
|
||||
*/
|
||||
protected $deadline;
|
||||
|
||||
/**
|
||||
* Global timeout value, mostly for exception messages
|
||||
* @var integer
|
||||
*/
|
||||
protected $timeout;
|
||||
|
||||
/**
|
||||
* Class constructor, tries to establish connection
|
||||
*
|
||||
* @param string $address Address for stream_socket_client() call,
|
||||
* e.g. 'tcp://localhost:80'
|
||||
* @param int $timeout Connection timeout (seconds)
|
||||
* @param array $sslOptions SSL context options
|
||||
*
|
||||
* @throws HTTP_Request2_LogicException
|
||||
* @throws HTTP_Request2_ConnectionException
|
||||
*/
|
||||
public function __construct($address, $timeout, array $sslOptions = array())
|
||||
{
|
||||
$context = stream_context_create();
|
||||
foreach ($sslOptions as $name => $value) {
|
||||
if (!stream_context_set_option($context, 'ssl', $name, $value)) {
|
||||
throw new HTTP_Request2_LogicException(
|
||||
"Error setting SSL context option '{$name}'"
|
||||
);
|
||||
}
|
||||
}
|
||||
set_error_handler(array($this, 'connectionWarningsHandler'));
|
||||
$this->socket = stream_socket_client(
|
||||
$address, $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $context
|
||||
);
|
||||
restore_error_handler();
|
||||
if (!$this->socket) {
|
||||
$error = $errstr ? $errstr : implode("\n", $this->connectionWarnings);
|
||||
throw new HTTP_Request2_ConnectionException(
|
||||
"Unable to connect to {$address}. Error: {$error}", 0, $errno
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Destructor, disconnects socket
|
||||
*/
|
||||
public function __destruct()
|
||||
{
|
||||
fclose($this->socket);
|
||||
}
|
||||
|
||||
/**
|
||||
* Wrapper around fread(), handles global request timeout
|
||||
*
|
||||
* @param int $length Reads up to this number of bytes
|
||||
*
|
||||
* @return string Data read from socket
|
||||
* @throws HTTP_Request2_MessageException In case of timeout
|
||||
*/
|
||||
public function read($length)
|
||||
{
|
||||
if ($this->deadline) {
|
||||
stream_set_timeout($this->socket, max($this->deadline - time(), 1));
|
||||
}
|
||||
$data = fread($this->socket, $length);
|
||||
$this->checkTimeout();
|
||||
return $data;
|
||||
}
|
||||
|
||||
/**
|
||||
* Reads until either the end of the socket or a newline, whichever comes first
|
||||
*
|
||||
* Strips the trailing newline from the returned data, handles global
|
||||
* request timeout. Method idea borrowed from Net_Socket PEAR package.
|
||||
*
|
||||
* @param int $bufferSize buffer size to use for reading
|
||||
*
|
||||
* @return string Available data up to the newline (not including newline)
|
||||
* @throws HTTP_Request2_MessageException In case of timeout
|
||||
*/
|
||||
public function readLine($bufferSize)
|
||||
{
|
||||
$line = '';
|
||||
while (!feof($this->socket)) {
|
||||
if ($this->deadline) {
|
||||
stream_set_timeout($this->socket, max($this->deadline - time(), 1));
|
||||
}
|
||||
$line .= @fgets($this->socket, $bufferSize);
|
||||
$this->checkTimeout();
|
||||
if (substr($line, -1) == "\n") {
|
||||
return rtrim($line, "\r\n");
|
||||
}
|
||||
}
|
||||
return $line;
|
||||
}
|
||||
|
||||
/**
|
||||
* Wrapper around fwrite(), handles global request timeout
|
||||
*
|
||||
* @param string $data String to be written
|
||||
*
|
||||
* @return int
|
||||
* @throws HTTP_Request2_MessageException
|
||||
*/
|
||||
public function write($data)
|
||||
{
|
||||
if ($this->deadline) {
|
||||
stream_set_timeout($this->socket, max($this->deadline - time(), 1));
|
||||
}
|
||||
$written = fwrite($this->socket, $data);
|
||||
$this->checkTimeout();
|
||||
// http://www.php.net/manual/en/function.fwrite.php#96951
|
||||
if ($written < strlen($data)) {
|
||||
throw new HTTP_Request2_MessageException('Error writing request');
|
||||
}
|
||||
return $written;
|
||||
}
|
||||
|
||||
/**
|
||||
* Tests for end-of-file on a socket
|
||||
*
|
||||
* @return bool
|
||||
*/
|
||||
public function eof()
|
||||
{
|
||||
return feof($this->socket);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets request deadline
|
||||
*
|
||||
* @param int $deadline Exception will be thrown if request continues
|
||||
* past this time
|
||||
* @param int $timeout Original request timeout value, to use in
|
||||
* Exception message
|
||||
*/
|
||||
public function setDeadline($deadline, $timeout)
|
||||
{
|
||||
$this->deadline = $deadline;
|
||||
$this->timeout = $timeout;
|
||||
}
|
||||
|
||||
/**
|
||||
* Turns on encryption on a socket
|
||||
*
|
||||
* @throws HTTP_Request2_ConnectionException
|
||||
*/
|
||||
public function enableCrypto()
|
||||
{
|
||||
$modes = array(
|
||||
STREAM_CRYPTO_METHOD_TLS_CLIENT,
|
||||
STREAM_CRYPTO_METHOD_SSLv3_CLIENT,
|
||||
STREAM_CRYPTO_METHOD_SSLv23_CLIENT,
|
||||
STREAM_CRYPTO_METHOD_SSLv2_CLIENT
|
||||
);
|
||||
|
||||
foreach ($modes as $mode) {
|
||||
if (stream_socket_enable_crypto($this->socket, true, $mode)) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
throw new HTTP_Request2_ConnectionException(
|
||||
'Failed to enable secure connection when connecting through proxy'
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Throws an Exception if stream timed out
|
||||
*
|
||||
* @throws HTTP_Request2_MessageException
|
||||
*/
|
||||
protected function checkTimeout()
|
||||
{
|
||||
$info = stream_get_meta_data($this->socket);
|
||||
if ($info['timed_out'] || $this->deadline && time() > $this->deadline) {
|
||||
$reason = $this->deadline
|
||||
? "after {$this->timeout} second(s)"
|
||||
: 'due to default_socket_timeout php.ini setting';
|
||||
throw new HTTP_Request2_MessageException(
|
||||
"Request timed out {$reason}", HTTP_Request2_Exception::TIMEOUT
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Error handler to use during stream_socket_client() call
|
||||
*
|
||||
* One stream_socket_client() call may produce *multiple* PHP warnings
|
||||
* (especially OpenSSL-related), we keep them in an array to later use for
|
||||
* the message of HTTP_Request2_ConnectionException
|
||||
*
|
||||
* @param int $errno error level
|
||||
* @param string $errstr error message
|
||||
*
|
||||
* @return bool
|
||||
*/
|
||||
protected function connectionWarningsHandler($errno, $errstr)
|
||||
{
|
||||
if ($errno & E_WARNING) {
|
||||
array_unshift($this->connectionWarnings, $errstr);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
}
|
||||
?>
|
||||
Reference in New Issue
Block a user