File "OAuthRequest.php"
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<?php
/*!
* This file is part of the OAuth PHP Library (https://code.google.com/p/oauth/)
*
* OAuth `PHP' Library is an open source software available under the MIT License.
*/
namespace Hybridauth\Thirdparty\OAuth;
/**
* Class OAuthRequest
*
* @package Hybridauth\Thirdparty\OAuth
*/
class OAuthRequest
{
public $parameters;
public $http_method;
public $http_url;
// for debug purposes
public $base_string;
public static $version = '1.0';
public static $POST_INPUT = 'php://input';
/**
* OAuthRequest constructor.
*
* @param $http_method
* @param $http_url
* @param null $parameters
*/
public function __construct($http_method, $http_url, $parameters = null)
{
$parameters = ($parameters) ? $parameters : array();
$parameters = array_merge(OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
$this->parameters = $parameters;
$this->http_method = $http_method;
$this->http_url = $http_url;
}
/**
* attempt to build up a request from what was passed to the server
*
* @param null $http_method
* @param null $http_url
* @param null $parameters
*
* @return OAuthRequest
*/
public static function from_request($http_method = null, $http_url = null, $parameters = null)
{
$scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") ? 'http' : 'https';
$http_url = ($http_url) ? $http_url : $scheme . '://' . $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'] . $_SERVER['REQUEST_URI'];
$http_method = ($http_method) ? $http_method : $_SERVER['REQUEST_METHOD'];
// We weren't handed any parameters, so let's find the ones relevant to
// this request.
// If you run XML-RPC or similar you should use this to provide your own
// parsed parameter-list
if (!$parameters) {
// Find request headers
$request_headers = OAuthUtil::get_headers();
// Parse the query-string to find GET parameters
$parameters = OAuthUtil::parse_parameters($_SERVER['QUERY_STRING']);
// It's a POST request of the proper content-type, so parse POST
// parameters and add those overriding any duplicates from GET
if ($http_method == "POST" && isset($request_headers['Content-Type']) && strstr($request_headers['Content-Type'], 'application/x-www-form-urlencoded')) {
$post_data = OAuthUtil::parse_parameters(file_get_contents(self::$POST_INPUT));
$parameters = array_merge($parameters, $post_data);
}
// We have a Authorization-header with OAuth data. Parse the header
// and add those overriding any duplicates from GET or POST
if (isset($request_headers['Authorization']) && substr($request_headers['Authorization'], 0, 6) == 'OAuth ') {
$header_parameters = OAuthUtil::split_header($request_headers['Authorization']);
$parameters = array_merge($parameters, $header_parameters);
}
}
return new OAuthRequest($http_method, $http_url, $parameters);
}
/**
* pretty much a helper function to set up the request
* @param $consumer
* @param $token
* @param $http_method
* @param $http_url
* @param null $parameters
* @return OAuthRequest
*/
public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters = null)
{
$parameters = ($parameters) ? $parameters : array();
$defaults = array(
"oauth_version" => OAuthRequest::$version,
"oauth_nonce" => OAuthRequest::generate_nonce(),
"oauth_timestamp" => OAuthRequest::generate_timestamp(),
"oauth_consumer_key" => $consumer->key
);
if ($token) {
$defaults['oauth_token'] = $token->key;
}
$parameters = array_merge($defaults, $parameters);
return new OAuthRequest($http_method, $http_url, $parameters);
}
/**
* @param $name
* @param $value
* @param bool $allow_duplicates
*/
public function set_parameter($name, $value, $allow_duplicates = true)
{
if ($allow_duplicates && isset($this->parameters[$name])) {
// We have already added parameter(s) with this name, so add to the list
if (is_scalar($this->parameters[$name])) {
// This is the first duplicate, so transform scalar (string)
// into an array so we can add the duplicates
$this->parameters[$name] = array(
$this->parameters[$name]
);
}
$this->parameters[$name][] = $value;
} else {
$this->parameters[$name] = $value;
}
}
/**
* @param $name
*
* @return |null
*/
public function get_parameter($name)
{
return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
}
/**
* @return array
*/
public function get_parameters()
{
return $this->parameters;
}
/**
* @param $name
*/
public function unset_parameter($name)
{
unset($this->parameters[$name]);
}
/**
* The request parameters, sorted and concatenated into a normalized string.
*
* @return string
*/
public function get_signable_parameters()
{
$params = [];
// Grab all parameters.
foreach ($this->parameters as $key_param => $value_param) {
// Process only scalar values.
if (is_scalar($value_param)) {
$params[$key_param] = $value_param;
}
}
// Remove oauth_signature if present
// Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
if (isset($params['oauth_signature'])) {
unset($params['oauth_signature']);
}
return OAuthUtil::build_http_query($params);
}
/**
* Returns the base string of this request
*
* The base string defined as the method, the url
* and the parameters (normalized), each urlencoded
* and the concated with &.
*/
public function get_signature_base_string()
{
$parts = array(
$this->get_normalized_http_method(),
$this->get_normalized_http_url(),
$this->get_signable_parameters()
);
$parts = OAuthUtil::urlencode_rfc3986($parts);
return implode('&', $parts);
}
/**
* just uppercases the http method
*/
public function get_normalized_http_method()
{
return strtoupper($this->http_method);
}
/**
* parses the url and rebuilds it to be
* scheme://host/path
*/
public function get_normalized_http_url()
{
$parts = parse_url($this->http_url);
$scheme = (isset($parts['scheme'])) ? $parts['scheme'] : 'http';
$port = (isset($parts['port'])) ? $parts['port'] : (($scheme == 'https') ? '443' : '80');
$host = (isset($parts['host'])) ? strtolower($parts['host']) : '';
$path = (isset($parts['path'])) ? $parts['path'] : '';
if (($scheme == 'https' && $port != '443') || ($scheme == 'http' && $port != '80')) {
$host = "$host:$port";
}
return "$scheme://$host$path";
}
/**
* builds a url usable for a GET request
*/
public function to_url()
{
$post_data = $this->to_postdata();
$out = $this->get_normalized_http_url();
if ($post_data) {
$out .= '?' . $post_data;
}
return $out;
}
/**
* builds the data one would send in a POST request
*/
public function to_postdata()
{
return OAuthUtil::build_http_query($this->parameters);
}
/**
* builds the Authorization: header
* @param null $realm
* @return array
*/
public function to_header($realm = null)
{
$first = true;
if ($realm) {
$out = 'OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
$first = false;
} else {
$out = 'OAuth';
}
foreach ($this->parameters as $k => $v) {
if (substr($k, 0, 5) != "oauth") {
continue;
}
if (is_array($v)) {
continue;
}
$out .= ($first) ? ' ' : ',';
$out .= OAuthUtil::urlencode_rfc3986($k) . '="' . OAuthUtil::urlencode_rfc3986($v) . '"';
$first = false;
}
return array(
'Authorization' => $out
); //- hacked into this to make it return an array. 15/11/2014.
}
/**
* @return string
*/
public function __toString()
{
return $this->to_url();
}
/**
* @param $signature_method
* @param $consumer
* @param $token
*/
public function sign_request($signature_method, $consumer, $token)
{
$this->set_parameter("oauth_signature_method", $signature_method->get_name(), false);
$signature = $this->build_signature($signature_method, $consumer, $token);
$this->set_parameter("oauth_signature", $signature, false);
}
/**
* @param $signature_method
* @param $consumer
* @param $token
*
* @return mixed
*/
public function build_signature($signature_method, $consumer, $token)
{
$signature = $signature_method->build_signature($this, $consumer, $token);
return $signature;
}
/**
* util function: current timestamp
*/
private static function generate_timestamp()
{
return time();
}
/**
* util function: current nonce
*/
private static function generate_nonce()
{
$mt = microtime();
$rand = mt_rand();
return md5($mt . $rand); // md5s look nicer than numbers
}
}