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<?php
namespace Laminas\OAuth\Token;
use Laminas\Http\Response as HTTPResponse;
use Laminas\OAuth\Http\Utility as HTTPUtility;
/**
* @category Laminas
* @package Laminas_OAuth
*/
abstract class AbstractToken implements TokenInterface
{
/**@+
* Token constants
*/
const TOKEN_PARAM_KEY = 'oauth_token';
const TOKEN_SECRET_PARAM_KEY = 'oauth_token_secret';
const TOKEN_PARAM_CALLBACK_CONFIRMED = 'oauth_callback_confirmed';
/**@-*/
/**
* Token parameters
*
* @var array
*/
protected $params = [];
/**
* OAuth response object
*
* @var \Laminas\Http\Response
*/
protected $response = null;
/**
* @var \Laminas\OAuth\Http\Utility
*/
protected $httpUtility = null;
/**
* Constructor; basic setup for any Token subclass.
*
* @param null|\Laminas\Http\Response $response
* @param null|\Laminas\OAuth\Http\Utility $utility
* @return void
*/
public function __construct(
HTTPResponse $response = null,
HTTPUtility $utility = null
) {
if ($response !== null) {
$this->response = $response;
$params = $this->parseParameters($response);
if (count($params) > 0) {
$this->setParams($params);
}
}
if ($utility !== null) {
$this->httpUtility = $utility;
} else {
$this->httpUtility = new HTTPUtility;
}
}
/**
* Attempts to validate the Token parsed from the HTTP response - really
* it's just very basic existence checks which are minimal.
*
* @return bool
*/
public function isValid()
{
if (isset($this->params[self::TOKEN_PARAM_KEY])
&& ! empty($this->params[self::TOKEN_PARAM_KEY])
&& isset($this->params[self::TOKEN_SECRET_PARAM_KEY])
) {
return true;
}
return false;
}
/**
* Return the HTTP response object used to initialise this instance.
*
* @return \Laminas\Http\Response
*/
public function getResponse()
{
return $this->response;
}
/**
* Sets the value for the this Token's secret which may be used when signing
* requests with this Token.
*
* @param string $secret
* @return \Laminas\OAuth\Token\AbstractToken
*/
public function setTokenSecret($secret)
{
$this->setParam(self::TOKEN_SECRET_PARAM_KEY, $secret);
return $this;
}
/**
* Retrieve this Token's secret which may be used when signing
* requests with this Token.
*
* @return string
*/
public function getTokenSecret()
{
return $this->getParam(self::TOKEN_SECRET_PARAM_KEY);
}
/**
* Sets the value for a parameter (e.g. token secret or other) and run
* a simple filter to remove any trailing newlines.
*
* @param string $key
* @param string $value
* @return \Laminas\OAuth\Token\AbstractToken
*/
public function setParam($key, $value)
{
$this->params[$key] = trim($value, "\n");
return $this;
}
/**
* Sets the value for some parameters (e.g. token secret or other) and run
* a simple filter to remove any trailing newlines.
*
* @param array $params
* @return \Laminas\OAuth\Token\AbstractToken
*/
public function setParams(array $params)
{
foreach ($params as $key => $value) {
$this->setParam($key, $value);
}
return $this;
}
/**
* Get the value for a parameter (e.g. token secret or other).
*
* @param string $key
* @return mixed
*/
public function getParam($key)
{
if (isset($this->params[$key])) {
return $this->params[$key];
}
return null;
}
/**
* Sets the value for a Token.
*
* @param string $token
* @return \Laminas\OAuth\Token\AbstractToken
*/
public function setToken($token)
{
$this->setParam(self::TOKEN_PARAM_KEY, $token);
return $this;
}
/**
* Gets the value for a Token.
*
* @return string
*/
public function getToken()
{
return $this->getParam(self::TOKEN_PARAM_KEY);
}
/**
* Generic accessor to enable access as public properties.
*
* @return string
*/
public function __get($key)
{
return $this->getParam($key);
}
/**
* Generic mutator to enable access as public properties.
*
* @param string $key
* @param string $value
* @return void
*/
public function __set($key, $value)
{
$this->setParam($key, $value);
}
/**
* Convert Token to a string, specifically a raw encoded query string.
*
* @return string
*/
public function toString()
{
return $this->httpUtility->toEncodedQueryString($this->params);
}
/**
* Convert Token to a string, specifically a raw encoded query string.
* Aliases to self::toString()
*
* @return string
*/
public function __toString()
{
return $this->toString();
}
/**
* Parse a HTTP response body and collect returned parameters
* as raw url decoded key-value pairs in an associative array.
*
* @param \Laminas\Http\Response $response
* @return array
*/
protected function parseParameters(HTTPResponse $response)
{
$params = [];
$body = $response->getBody();
if (empty($body)) {
return [];
}
// validate body based on acceptable characters...todo
$parts = explode('&', $body);
foreach ($parts as $kvpair) {
$pair = explode('=', $kvpair);
$params[rawurldecode($pair[0])] = rawurldecode($pair[1]);
}
return $params;
}
/**
* Limit serialisation stored data to the parameters
*/
public function __sleep()
{
return ['_params'];
}
/**
* After serialisation, re-instantiate a HTTP utility class for use
*/
public function __wakeup()
{
if ($this->httpUtility === null) {
$this->httpUtility = new HTTPUtility;
}
}
}