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| Dir : /home/antonkerr/www/daltonstours.com/wp-content/plugins/shareaholic/curl.php |
<?php
/**
* This file holds the ShareaholicCurl class.
*
* @package shareaholic
*/
require_once SHAREAHOLIC_PATH . 'query_string_builder.php';
/**
* This class is a library to easily interface with PHP's native
* cURL library. It exposes two methods `get` and `post`.
*
* @package shareaholic
*/
class ShareaholicCurl {
/**
*
* Performs a POST request
*
* @param string $url the url you are POSTing to.
* @param array $data an associative array of the data you are posting.
* @param string $data_type defaults to nothing, you can pass in 'json'.
* @param bool $ignore_error whether to log a networking error.
*
* @return array the returned data json decoded
*/
public static function post( $url, $data = array(), $data_type = '', $ignore_error = false, $timeout = 10 ) {
return self::send_request_with_wp( $url, $data, $data_type, $ignore_error, 'POST', $timeout );
}
/**
*
* Performs a GET request
*
* @param string $url the url you are GETing to.
* @param array $data an associative array of the data you are posting.
* @param string $data_type defaults to nothing, you can pass in 'json'.
* @param bool $ignore_error whether to log a networking error.
*
* @return array the returned data json decoded
*/
public static function get( $url, $data = array(), $data_type = '', $ignore_error = false, $timeout = 10 ) {
return self::send_request_with_wp( $url, $data, $data_type, $ignore_error, 'GET', $timeout );
}
/**
*
* Performs a request using the methods built into WordPress, which account for
* various PHP eccenctricities.
*
* @param string $url
* @param array $data an associative array of the data.
* @param string $data_type either an empty string or 'json'.
* @param bool $ignore_error whether to log a networking error.
* @param string $method the HTTP verb to be used.
* @param int $timeout timeout in seconds.
*
* @return mixed the returned data json decoded or false
*/
private static function send_request_with_wp( $url, $data, $data_type, $ignore_error, $method, $timeout = 10 ) {
ShareaholicUtilities::log( $url );
ShareaholicUtilities::log( $data );
ShareaholicUtilities::log( $data_type );
ShareaholicUtilities::log( $method );
ShareaholicUtilities::log( '-----------------' );
$useragent = 'WordPress/' . get_bloginfo( 'version' ) . ' (' . 'PHP/' . phpversion() . '; ' . 'SHR_WP/' . Shareaholic::VERSION . '; +' . get_bloginfo( 'url' ) . ')';
if ( $method == 'GET' ) {
$request = array();
if ( WP_Http_Encoding::is_available() ) {
$request['headers']['Accept-Encoding'] = 'gzip, deflate';
}
$response = wp_remote_get(
$url,
array(
'body' => $data,
'sslverify' => false,
'user-agent' => $useragent,
'timeout' => $timeout,
'headers' => $request['headers'],
)
);
} elseif ( $method == 'POST' ) {
$request = array();
if ( $data_type == 'json' ) {
$request['headers'] = array(
'Content-Type' => 'application/json',
);
$request['body'] = json_encode( $data );
} else {
$request['body'] = $data;
}
$request['headers']['Accept'] = 'application/json';
if ( WP_Http_Encoding::is_available() ) {
$request['headers']['Accept-Encoding'] = 'gzip, deflate';
}
$request['headers']['user-agent'] = $useragent;
$request['sslverify'] = false;
$request['timeout'] = $timeout;
$response = wp_remote_post( $url, $request );
}
if ( is_wp_error( $response ) ) {
$error_message = $response->get_error_message();
ShareaholicUtilities::log( $error_message );
if ( ! $ignore_error ) {
ShareaholicUtilities::log_event(
'CurlRequestFailure',
array(
'error_message' => $error_message,
'url' => $url,
)
);
}
return false;
} elseif ( is_array( $response ) && array_key_exists( 'body', $response ) ) {
$body = $response['body'];
// strip out any BOM appended characters
$body = self::strip_utf8_bom( $body );
$response['body'] = ShareaholicUtilities::object_to_array( json_decode( $body ) ) ?
ShareaholicUtilities::object_to_array( json_decode( $body ) ) : $body;
return $response;
}
}
/**
*
* Performs a request using cURL
*
* @param string $url the url you are GETing to.
* @param array $data an associative array of the data you are posting.
* @param string $data_type either an empty string or 'json'.
* @param string $method the HTTP verb to be used.
*
* @return array the returned data json decoded
*/
private static function send_request( $url, $data, $data_type, $method ) {
$curl = curl_init();
curl_setopt_array(
$curl,
array(
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
)
);
/*
* Because many shared hosting providers set `open_basedir` in php.ini
* that means we can't always set CURLOPT_FOLLOWLOCATION.
* This next block is an attempt around that by sending head requests
* to determine if there will be a redirect and then following it.
* Shamelessly stolen from here:
* http://us2.php.net/manual/en/function.curl-setopt.php#102121
*/
$mr = 5;
if ( ini_get( 'open_basedir' ) == '' && ini_get( 'safe_mode' == 'Off' ) ) {
curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, $mr > 0 );
curl_setopt( $curl, CURLOPT_MAXREDIRS, $mr );
} else {
curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, false );
if ( $mr > 0 ) {
$newurl = curl_getinfo( $curl, CURLINFO_EFFECTIVE_URL );
$rch = curl_copy_handle( $curl );
curl_setopt( $rch, CURLOPT_HEADER, true );
curl_setopt( $rch, CURLOPT_NOBODY, true );
curl_setopt( $rch, CURLOPT_FORBID_REUSE, false );
curl_setopt( $rch, CURLOPT_RETURNTRANSFER, true );
do {
curl_setopt( $rch, CURLOPT_URL, $newurl );
$header = curl_exec( $rch );
if ( curl_errno( $rch ) ) {
$code = 0;
} else {
$code = curl_getinfo( $rch, CURLINFO_HTTP_CODE );
if ( $code == 301 || $code == 302 ) {
preg_match( '/Location:(.*?)\n/', $header, $matches );
$newurl = trim( array_pop( $matches ) );
} else {
$code = 0;
}
}
} while ( $code && --$mr );
curl_close( $rch );
if ( ! $mr ) {
if ( $maxredirect === null ) {
trigger_error( 'Too many redirects. When following redirects, libcurl hit the maximum amount.', E_USER_WARNING );
} else {
$maxredirect = 0;
}
return false;
}
curl_setopt( $curl, CURLOPT_URL, $newurl );
}
}
/* end stolen code */
if ( $method == 'POST' ) {
curl_setopt_array(
$curl,
array(
CURLOPT_POST => 1,
CURLOPT_HTTPHEADER => array( 'Accept: application/json,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain' ),
)
);
if ( $data_type == 'json' ) {
curl_setopt_array(
$curl,
array(
CURLOPT_POSTFIELDS => json_encode( $data ),
CURLOPT_HTTPHEADER => array(
'Content-Type: application/json',
'Content-Length: ' . strlen( json_encode( $data ) ),
),
)
);
} else {
curl_setopt_array(
$curl,
array(
CURLOPT_POSTFIELDS => ShareaholicQueryStringBuilder::build_query_string( $data ),
)
);
}
}
$result = curl_exec( $curl );
$info = curl_getinfo( $curl );
ShareaholicUtilities::log( curl_error( $curl ) );
ShareaholicUtilities::log( curl_getinfo( $curl ) );
curl_close( $curl );
if ( preg_match( '/^20*/', $info['http_code'] ) ) {
return ShareaholicUtilities::object_to_array( json_decode( $result ) ) ?
ShareaholicUtilities::object_to_array( json_decode( $result ) ) : $result;
} else {
return false;
}
}
/**
* Sometimes the response from APIs begins with BOM (byte order mark) which
* makes it difficult to parse JSON responses.
*
* If it exists, remove it and return the cleaned up string
*
* @param {String} $str the string to strip BOM.
* @return {String} the stripped out string if BOM exists
*/
private static function strip_utf8_bom( $str ) {
// create binary string for BOM
$bom = pack( 'CCC', 0xef, 0xbb, 0xbf );
// binary safe compare the BOM with the string
if ( 0 === strncmp( $str, $bom, 3 ) ) {
return substr( $str, 3 );
}
return $str;
}
}