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Edit File : Parser.php \| Size : 14.56 KB
<?php /** * SimplePie * * A PHP-Based RSS and Atom Feed Framework. * Takes the hard work out of managing a complete RSS/Atom solution. * * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors * 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. * * * Neither the name of the SimplePie Team nor the names of its contributors may 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 HOLDERS * AND 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. * * @package SimplePie * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue * @author Ryan Parman * @author Sam Sneddon * @author Ryan McCue * @link http://simplepie.org/ SimplePie * @license http://www.opensource.org/licenses/bsd-license.php BSD License / namespace SimplePie\HTTP; /* * HTTP Response Parser * * @package SimplePie * @subpackage HTTP / class Parser { /* * HTTP Version * * @var float / public $http_version = 0.0; /* * Status code * * @var int / public $status_code = 0; /* * Reason phrase * * @var string / public $reason = ''; /* * Key/value pairs of the headers * * @var array / public $headers = []; /* * Body of the response * * @var string / public $body = ''; private const STATE_HTTP_VERSION = 'http_version'; private const STATE_STATUS = 'status'; private const STATE_REASON = 'reason'; private const STATE_NEW_LINE = 'new_line'; private const STATE_BODY = 'body'; private const STATE_NAME = 'name'; private const STATE_VALUE = 'value'; private const STATE_VALUE_CHAR = 'value_char'; private const STATE_QUOTE = 'quote'; private const STATE_QUOTE_ESCAPED = 'quote_escaped'; private const STATE_QUOTE_CHAR = 'quote_char'; private const STATE_CHUNKED = 'chunked'; private const STATE_EMIT = 'emit'; private const STATE_ERROR = false; /* * Current state of the state machine * * @var self::STATE_* / protected $state = self::STATE_HTTP_VERSION; /* * Input data * * @var string / protected $data = ''; /* * Input data length (to avoid calling strlen() everytime this is needed) * * @var int / protected $data_length = 0; /* * Current position of the pointer * * @var int / protected $position = 0; /* * Name of the hedaer currently being parsed * * @var string / protected $name = ''; /* * Value of the hedaer currently being parsed * * @var string / protected $value = ''; /* * Create an instance of the class with the input data * * @param string $data Input data / public function __construct($data) { $this->data = $data; $this->data_length = strlen($this->data); } /* * Parse the input data * * @return bool true on success, false on failure / public function parse() { while ($this->state && $this->state !== self::STATE_EMIT && $this->has_data()) { $state = $this->state; $this->$state(); } $this->data = ''; if ($this->state === self::STATE_EMIT \|\| $this->state === self::STATE_BODY) { return true; } $this->http_version = ''; $this->status_code = 0; $this->reason = ''; $this->headers = []; $this->body = ''; return false; } /* * Check whether there is data beyond the pointer * * @return bool true if there is further data, false if not / protected function has_data() { return (bool) ($this->position < $this->data_length); } /* * See if the next character is LWS * * @return bool true if the next character is LWS, false if not / protected function is_linear_whitespace() { return (bool) ($this->data[$this->position] === "\x09" \|\| $this->data[$this->position] === "\x20" \|\| ($this->data[$this->position] === "\x0A" && isset($this->data[$this->position + 1]) && ($this->data[$this->position + 1] === "\x09" \|\| $this->data[$this->position + 1] === "\x20"))); } /* * Parse the HTTP version / protected function http_version() { if (strpos($this->data, "\x0A") !== false && strtoupper(substr($this->data, 0, 5)) === 'HTTP/') { $len = strspn($this->data, '0123456789.', 5); $this->http_version = substr($this->data, 5, $len); $this->position += 5 + $len; if (substr_count($this->http_version, '.') <= 1) { $this->http_version = (float) $this->http_version; $this->position += strspn($this->data, "\x09\x20", $this->position); $this->state = self::STATE_STATUS; } else { $this->state = self::STATE_ERROR; } } else { $this->state = self::STATE_ERROR; } } /* * Parse the status code / protected function status() { if ($len = strspn($this->data, '0123456789', $this->position)) { $this->status_code = (int) substr($this->data, $this->position, $len); $this->position += $len; $this->state = self::STATE_REASON; } else { $this->state = self::STATE_ERROR; } } /* * Parse the reason phrase / protected function reason() { $len = strcspn($this->data, "\x0A", $this->position); $this->reason = trim(substr($this->data, $this->position, $len), "\x09\x0D\x20"); $this->position += $len + 1; $this->state = self::STATE_NEW_LINE; } /* * Deal with a new line, shifting data around as needed / protected function new_line() { $this->value = trim($this->value, "\x0D\x20"); if ($this->name !== '' && $this->value !== '') { $this->name = strtolower($this->name); // We should only use the last Content-Type header. c.f. issue #1 if (isset($this->headers[$this->name]) && $this->name !== 'content-type') { $this->headers[$this->name] .= ', ' . $this->value; } else { $this->headers[$this->name] = $this->value; } } $this->name = ''; $this->value = ''; if (substr($this->data[$this->position], 0, 2) === "\x0D\x0A") { $this->position += 2; $this->state = self::STATE_BODY; } elseif ($this->data[$this->position] === "\x0A") { $this->position++; $this->state = self::STATE_BODY; } else { $this->state = self::STATE_NAME; } } /* * Parse a header name / protected function name() { $len = strcspn($this->data, "\x0A:", $this->position); if (isset($this->data[$this->position + $len])) { if ($this->data[$this->position + $len] === "\x0A") { $this->position += $len; $this->state = self::STATE_NEW_LINE; } else { $this->name = substr($this->data, $this->position, $len); $this->position += $len + 1; $this->state = self::STATE_VALUE; } } else { $this->state = self::STATE_ERROR; } } /* * Parse LWS, replacing consecutive LWS characters with a single space / protected function linear_whitespace() { do { if (substr($this->data, $this->position, 2) === "\x0D\x0A") { $this->position += 2; } elseif ($this->data[$this->position] === "\x0A") { $this->position++; } $this->position += strspn($this->data, "\x09\x20", $this->position); } while ($this->has_data() && $this->is_linear_whitespace()); $this->value .= "\x20"; } /* * See what state to move to while within non-quoted header values / protected function value() { if ($this->is_linear_whitespace()) { $this->linear_whitespace(); } else { switch ($this->data[$this->position]) { case '"': // Workaround for ETags: we have to include the quotes as // part of the tag. if (strtolower($this->name) === 'etag') { $this->value .= '"'; $this->position++; $this->state = self::STATE_VALUE_CHAR; break; } $this->position++; $this->state = self::STATE_QUOTE; break; case "\x0A": $this->position++; $this->state = self::STATE_NEW_LINE; break; default: $this->state = self::STATE_VALUE_CHAR; break; } } } /* * Parse a header value while outside quotes / protected function value_char() { $len = strcspn($this->data, "\x09\x20\x0A\"", $this->position); $this->value .= substr($this->data, $this->position, $len); $this->position += $len; $this->state = self::STATE_VALUE; } /* * See what state to move to while within quoted header values / protected function quote() { if ($this->is_linear_whitespace()) { $this->linear_whitespace(); } else { switch ($this->data[$this->position]) { case '"': $this->position++; $this->state = self::STATE_VALUE; break; case "\x0A": $this->position++; $this->state = self::STATE_NEW_LINE; break; case '\\': $this->position++; $this->state = self::STATE_QUOTE_ESCAPED; break; default: $this->state = self::STATE_QUOTE_CHAR; break; } } } /* * Parse a header value while within quotes / protected function quote_char() { $len = strcspn($this->data, "\x09\x20\x0A\"\\", $this->position); $this->value .= substr($this->data, $this->position, $len); $this->position += $len; $this->state = self::STATE_VALUE; } /* * Parse an escaped character within quotes / protected function quote_escaped() { $this->value .= $this->data[$this->position]; $this->position++; $this->state = self::STATE_QUOTE; } /* * Parse the body / protected function body() { $this->body = substr($this->data, $this->position); if (!empty($this->headers['transfer-encoding'])) { unset($this->headers['transfer-encoding']); $this->state = self::STATE_CHUNKED; } else { $this->state = self::STATE_EMIT; } } /* * Parsed a "Transfer-Encoding: chunked" body / protected function chunked() { if (!preg_match('/^([0-9a-f]+)[^\r\n]\r\n/i', trim($this->body))) { $this->state = self::STATE_EMIT; return; } $decoded = ''; $encoded = $this->body; while (true) { $is_chunked = (bool) preg_match('/^([0-9a-f]+)[^\r\n]\r\n/i', $encoded, $matches); if (!$is_chunked) { // Looks like it's not chunked after all $this->state = self::STATE_EMIT; return; } $length = hexdec(trim($matches[1])); if ($length === 0) { // Ignore trailer headers $this->state = self::STATE_EMIT; $this->body = $decoded; return; } $chunk_length = strlen($matches[0]); $decoded .= substr($encoded, $chunk_length, $length); $encoded = substr($encoded, $chunk_length + $length + 2); // BC for PHP < 8.0: substr() can return bool instead of string $encoded = ($encoded === false) ? '' : $encoded; if (trim($encoded) === '0' \|\| empty($encoded)) { $this->state = self::STATE_EMIT; $this->body = $decoded; return; } } } /* * Prepare headers (take care of proxies headers) * * @param string $headers Raw headers * @param integer $count Redirection count. Default to 1. * * @return string */ public static function prepareHeaders($headers, $count = 1) { $data = explode("\r\n\r\n", $headers, $count); $data = array_pop($data); if (false !== stripos($data, "HTTP/1.0 200 Connection established\r\n")) { $exploded = explode("\r\n\r\n", $data, 2); $data = end($exploded); } if (false !== stripos($data, "HTTP/1.1 200 Connection established\r\n")) { $exploded = explode("\r\n\r\n", $data, 2); $data = end($exploded); } return $data; } } class_alias('SimplePie\HTTP\Parser', 'SimplePie_HTTP_Parser'); Back

Edit File : Parser.php | Size : 14.56 KB

<?php

/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
 * 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.
 *
 * 	* Neither the name of the SimplePie Team nor the names of its contributors may 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 HOLDERS
 * AND 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.
 *
 * @package SimplePie
 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
 * @author Ryan Parman
 * @author Sam Sneddon
 * @author Ryan McCue
 * @link http://simplepie.org/ SimplePie
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 */

namespace SimplePie\HTTP;

/**
 * HTTP Response Parser
 *
 * @package SimplePie
 * @subpackage HTTP
 */
class Parser
{
    /**
     * HTTP Version
     *
     * @var float
     */
    public $http_version = 0.0;

/**
     * Status code
     *
     * @var int
     */
    public $status_code = 0;

/**
     * Reason phrase
     *
     * @var string
     */
    public $reason = '';

/**
     * Key/value pairs of the headers
     *
     * @var array
     */
    public $headers = [];

/**
     * Body of the response
     *
     * @var string
     */
    public $body = '';

private const STATE_HTTP_VERSION = 'http_version';

private const STATE_STATUS = 'status';

private const STATE_REASON = 'reason';

private const STATE_NEW_LINE = 'new_line';

private const STATE_BODY = 'body';

private const STATE_NAME = 'name';

private const STATE_VALUE = 'value';

private const STATE_VALUE_CHAR = 'value_char';

private const STATE_QUOTE = 'quote';

private const STATE_QUOTE_ESCAPED = 'quote_escaped';

private const STATE_QUOTE_CHAR = 'quote_char';

private const STATE_CHUNKED = 'chunked';

private const STATE_EMIT = 'emit';

private const STATE_ERROR = false;

/**
     * Current state of the state machine
     *
     * @var self::STATE_*
     */
    protected $state = self::STATE_HTTP_VERSION;

/**
     * Input data
     *
     * @var string
     */
    protected $data = '';

/**
     * Input data length (to avoid calling strlen() everytime this is needed)
     *
     * @var int
     */
    protected $data_length = 0;

/**
     * Current position of the pointer
     *
     * @var int
     */
    protected $position = 0;

/**
     * Name of the hedaer currently being parsed
     *
     * @var string
     */
    protected $name = '';

/**
     * Value of the hedaer currently being parsed
     *
     * @var string
     */
    protected $value = '';

/**
     * Create an instance of the class with the input data
     *
     * @param string $data Input data
     */
    public function __construct($data)
    {
        $this->data = $data;
        $this->data_length = strlen($this->data);
    }

/**
     * Parse the input data
     *
     * @return bool true on success, false on failure
     */
    public function parse()
    {
        while ($this->state && $this->state !== self::STATE_EMIT && $this->has_data()) {
            $state = $this->state;
            $this->$state();
        }
        $this->data = '';
        if ($this->state === self::STATE_EMIT || $this->state === self::STATE_BODY) {
            return true;
        }

$this->http_version = '';
        $this->status_code = 0;
        $this->reason = '';
        $this->headers = [];
        $this->body = '';
        return false;
    }

/**
     * Check whether there is data beyond the pointer
     *
     * @return bool true if there is further data, false if not
     */
    protected function has_data()
    {
        return (bool) ($this->position < $this->data_length);
    }

/**
     * See if the next character is LWS
     *
     * @return bool true if the next character is LWS, false if not
     */
    protected function is_linear_whitespace()
    {
        return (bool) ($this->data[$this->position] === "\x09"
            || $this->data[$this->position] === "\x20"
            || ($this->data[$this->position] === "\x0A"
                && isset($this->data[$this->position + 1])
                && ($this->data[$this->position + 1] === "\x09" || $this->data[$this->position + 1] === "\x20")));
    }

/**
     * Parse the HTTP version
     */
    protected function http_version()
    {
        if (strpos($this->data, "\x0A") !== false && strtoupper(substr($this->data, 0, 5)) === 'HTTP/') {
            $len = strspn($this->data, '0123456789.', 5);
            $this->http_version = substr($this->data, 5, $len);
            $this->position += 5 + $len;
            if (substr_count($this->http_version, '.') <= 1) {
                $this->http_version = (float) $this->http_version;
                $this->position += strspn($this->data, "\x09\x20", $this->position);
                $this->state = self::STATE_STATUS;
            } else {
                $this->state = self::STATE_ERROR;
            }
        } else {
            $this->state = self::STATE_ERROR;
        }
    }

/**
     * Parse the status code
     */
    protected function status()
    {
        if ($len = strspn($this->data, '0123456789', $this->position)) {
            $this->status_code = (int) substr($this->data, $this->position, $len);
            $this->position += $len;
            $this->state = self::STATE_REASON;
        } else {
            $this->state = self::STATE_ERROR;
        }
    }

/**
     * Parse the reason phrase
     */
    protected function reason()
    {
        $len = strcspn($this->data, "\x0A", $this->position);
        $this->reason = trim(substr($this->data, $this->position, $len), "\x09\x0D\x20");
        $this->position += $len + 1;
        $this->state = self::STATE_NEW_LINE;
    }

/**
     * Deal with a new line, shifting data around as needed
     */
    protected function new_line()
    {
        $this->value = trim($this->value, "\x0D\x20");
        if ($this->name !== '' && $this->value !== '') {
            $this->name = strtolower($this->name);
            // We should only use the last Content-Type header. c.f. issue #1
            if (isset($this->headers[$this->name]) && $this->name !== 'content-type') {
                $this->headers[$this->name] .= ', ' . $this->value;
            } else {
                $this->headers[$this->name] = $this->value;
            }
        }
        $this->name = '';
        $this->value = '';
        if (substr($this->data[$this->position], 0, 2) === "\x0D\x0A") {
            $this->position += 2;
            $this->state = self::STATE_BODY;
        } elseif ($this->data[$this->position] === "\x0A") {
            $this->position++;
            $this->state = self::STATE_BODY;
        } else {
            $this->state = self::STATE_NAME;
        }
    }

/**
     * Parse a header name
     */
    protected function name()
    {
        $len = strcspn($this->data, "\x0A:", $this->position);
        if (isset($this->data[$this->position + $len])) {
            if ($this->data[$this->position + $len] === "\x0A") {
                $this->position += $len;
                $this->state = self::STATE_NEW_LINE;
            } else {
                $this->name = substr($this->data, $this->position, $len);
                $this->position += $len + 1;
                $this->state = self::STATE_VALUE;
            }
        } else {
            $this->state = self::STATE_ERROR;
        }
    }

/**
     * Parse LWS, replacing consecutive LWS characters with a single space
     */
    protected function linear_whitespace()
    {
        do {
            if (substr($this->data, $this->position, 2) === "\x0D\x0A") {
                $this->position += 2;
            } elseif ($this->data[$this->position] === "\x0A") {
                $this->position++;
            }
            $this->position += strspn($this->data, "\x09\x20", $this->position);
        } while ($this->has_data() && $this->is_linear_whitespace());
        $this->value .= "\x20";
    }

/**
     * See what state to move to while within non-quoted header values
     */
    protected function value()
    {
        if ($this->is_linear_whitespace()) {
            $this->linear_whitespace();
        } else {
            switch ($this->data[$this->position]) {
                case '"':
                    // Workaround for ETags: we have to include the quotes as
                    // part of the tag.
                    if (strtolower($this->name) === 'etag') {
                        $this->value .= '"';
                        $this->position++;
                        $this->state = self::STATE_VALUE_CHAR;
                        break;
                    }
                    $this->position++;
                    $this->state = self::STATE_QUOTE;
                    break;

case "\x0A":
                    $this->position++;
                    $this->state = self::STATE_NEW_LINE;
                    break;

default:
                    $this->state = self::STATE_VALUE_CHAR;
                    break;
            }
        }
    }

/**
     * Parse a header value while outside quotes
     */
    protected function value_char()
    {
        $len = strcspn($this->data, "\x09\x20\x0A\"", $this->position);
        $this->value .= substr($this->data, $this->position, $len);
        $this->position += $len;
        $this->state = self::STATE_VALUE;
    }

/**
     * See what state to move to while within quoted header values
     */
    protected function quote()
    {
        if ($this->is_linear_whitespace()) {
            $this->linear_whitespace();
        } else {
            switch ($this->data[$this->position]) {
                case '"':
                    $this->position++;
                    $this->state = self::STATE_VALUE;
                    break;

case "\x0A":
                    $this->position++;
                    $this->state = self::STATE_NEW_LINE;
                    break;

case '\\':
                    $this->position++;
                    $this->state = self::STATE_QUOTE_ESCAPED;
                    break;

default:
                    $this->state = self::STATE_QUOTE_CHAR;
                    break;
            }
        }
    }

/**
     * Parse a header value while within quotes
     */
    protected function quote_char()
    {
        $len = strcspn($this->data, "\x09\x20\x0A\"\\", $this->position);
        $this->value .= substr($this->data, $this->position, $len);
        $this->position += $len;
        $this->state = self::STATE_VALUE;
    }

/**
     * Parse an escaped character within quotes
     */
    protected function quote_escaped()
    {
        $this->value .= $this->data[$this->position];
        $this->position++;
        $this->state = self::STATE_QUOTE;
    }

/**
     * Parse the body
     */
    protected function body()
    {
        $this->body = substr($this->data, $this->position);
        if (!empty($this->headers['transfer-encoding'])) {
            unset($this->headers['transfer-encoding']);
            $this->state = self::STATE_CHUNKED;
        } else {
            $this->state = self::STATE_EMIT;
        }
    }

/**
     * Parsed a "Transfer-Encoding: chunked" body
     */
    protected function chunked()
    {
        if (!preg_match('/^([0-9a-f]+)[^\r\n]*\r\n/i', trim($this->body))) {
            $this->state = self::STATE_EMIT;
            return;
        }

$decoded = '';
        $encoded = $this->body;

while (true) {
            $is_chunked = (bool) preg_match('/^([0-9a-f]+)[^\r\n]*\r\n/i', $encoded, $matches);
            if (!$is_chunked) {
                // Looks like it's not chunked after all
                $this->state = self::STATE_EMIT;
                return;
            }

$length = hexdec(trim($matches[1]));
            if ($length === 0) {
                // Ignore trailer headers
                $this->state = self::STATE_EMIT;
                $this->body = $decoded;
                return;
            }

$chunk_length = strlen($matches[0]);
            $decoded .= substr($encoded, $chunk_length, $length);
            $encoded = substr($encoded, $chunk_length + $length + 2);

// BC for PHP < 8.0: substr() can return bool instead of string
            $encoded = ($encoded === false) ? '' : $encoded;

if (trim($encoded) === '0' || empty($encoded)) {
                $this->state = self::STATE_EMIT;
                $this->body = $decoded;
                return;
            }
        }
    }

/**
     * Prepare headers (take care of proxies headers)
     *
     * @param string  $headers Raw headers
     * @param integer $count   Redirection count. Default to 1.
     *
     * @return string
     */
    public static function prepareHeaders($headers, $count = 1)
    {
        $data = explode("\r\n\r\n", $headers, $count);
        $data = array_pop($data);
        if (false !== stripos($data, "HTTP/1.0 200 Connection established\r\n")) {
            $exploded = explode("\r\n\r\n", $data, 2);
            $data = end($exploded);
        }
        if (false !== stripos($data, "HTTP/1.1 200 Connection established\r\n")) {
            $exploded = explode("\r\n\r\n", $data, 2);
            $data = end($exploded);
        }
        return $data;
    }
}

class_alias('SimplePie\HTTP\Parser', 'SimplePie_HTTP_Parser');

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