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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\authclient;
use Yii;
use yii\base\Component;
use yii\base\InvalidConfigException;
use yii\di\Instance;
use yii\helpers\Inflector;
use yii\helpers\StringHelper;
use yii\httpclient\Client;
/**
* BaseClient is a base Auth Client class.
*
* @see ClientInterface
*
* @property Client $httpClient Internal HTTP client. Note that the type of this property differs in getter
* and setter. See [[getHttpClient()]] and [[setHttpClient()]] for details.
* @property string $id Service id.
* @property string $name Service name.
* @property array $normalizeUserAttributeMap Normalize user attribute map.
* @property array $requestOptions HTTP request options. This property is read-only.
* @property StateStorageInterface $stateStorage Stage storage. Note that the type of this property differs in
* getter and setter. See [[getStateStorage()]] and [[setStateStorage()]] for details.
* @property string $title Service title.
* @property array $userAttributes List of user attributes.
* @property array $viewOptions View options in format: optionName => optionValue.
*
* @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0
*/
abstract class BaseClient extends Component implements ClientInterface
{
/**
* @var string auth service id.
* This value mainly used as HTTP request parameter.
*/
private $_id;
/**
* @var string auth service name.
* This value may be used in database records, CSS files and so on.
*/
private $_name;
/**
* @var string auth service title to display in views.
*/
private $_title;
/**
* @var array authenticated user attributes.
*/
private $_userAttributes;
/**
* @var array map used to normalize user attributes fetched from external auth service
* in format: normalizedAttributeName => sourceSpecification
* 'sourceSpecification' can be:
* - string, raw attribute name
* - array, pass to raw attribute value
* - callable, PHP callback, which should accept array of raw attributes and return normalized value.
*
* For example:
*
* ```php
* 'normalizeUserAttributeMap' => [
* 'about' => 'bio',
* 'language' => ['languages', 0, 'name'],
* 'fullName' => function ($attributes) {
* return $attributes['firstName'] . ' ' . $attributes['lastName'];
* },
* ],
* ```
*/
private $_normalizeUserAttributeMap;
/**
* @var array view options in format: optionName => optionValue
*/
private $_viewOptions;
/**
* @var Client|array|string internal HTTP client.
* @since 2.1
*/
private $_httpClient = 'yii\httpclient\Client';
/**
* @var array cURL request options. Option values from this field will overwrite corresponding
* values from [[defaultRequestOptions()]].
* @since 2.1
*/
private $_requestOptions = [];
/**
* @var StateStorageInterface|array|string state storage to be used.
*/
private $_stateStorage = 'yii\authclient\SessionStateStorage';
/**
* @param string $id service id.
*/
public function setId($id)
{
$this->_id = $id;
}
/**
* @return string service id
*/
public function getId()
{
if (empty($this->_id)) {
$this->_id = $this->getName();
}
return $this->_id;
}
/**
* @param string $name service name.
*/
public function setName($name)
{
$this->_name = $name;
}
/**
* @return string service name.
*/
public function getName()
{
if ($this->_name === null) {
$this->_name = $this->defaultName();
}
return $this->_name;
}
/**
* @param string $title service title.
*/
public function setTitle($title)
{
$this->_title = $title;
}
/**
* @return string service title.
*/
public function getTitle()
{
if ($this->_title === null) {
$this->_title = $this->defaultTitle();
}
return $this->_title;
}
/**
* @param array $userAttributes list of user attributes
*/
public function setUserAttributes($userAttributes)
{
$this->_userAttributes = $this->normalizeUserAttributes($userAttributes);
}
/**
* @return array list of user attributes
*/
public function getUserAttributes()
{
if ($this->_userAttributes === null) {
$this->_userAttributes = $this->normalizeUserAttributes($this->initUserAttributes());
}
return $this->_userAttributes;
}
/**
* @param array $normalizeUserAttributeMap normalize user attribute map.
*/
public function setNormalizeUserAttributeMap($normalizeUserAttributeMap)
{
$this->_normalizeUserAttributeMap = $normalizeUserAttributeMap;
}
/**
* @return array normalize user attribute map.
*/
public function getNormalizeUserAttributeMap()
{
if ($this->_normalizeUserAttributeMap === null) {
$this->_normalizeUserAttributeMap = $this->defaultNormalizeUserAttributeMap();
}
return $this->_normalizeUserAttributeMap;
}
/**
* @param array $viewOptions view options in format: optionName => optionValue
*/
public function setViewOptions($viewOptions)
{
$this->_viewOptions = $viewOptions;
}
/**
* @return array view options in format: optionName => optionValue
*/
public function getViewOptions()
{
if ($this->_viewOptions === null) {
$this->_viewOptions = $this->defaultViewOptions();
}
return $this->_viewOptions;
}
/**
* Returns HTTP client.
* @return Client internal HTTP client.
* @since 2.1
*/
public function getHttpClient()
{
if (!is_object($this->_httpClient)) {
$this->_httpClient = $this->createHttpClient($this->_httpClient);
}
return $this->_httpClient;
}
/**
* Sets HTTP client to be used.
* @param array|Client $httpClient internal HTTP client.
* @since 2.1
*/
public function setHttpClient($httpClient)
{
$this->_httpClient = $httpClient;
}
/**
* @param array $options HTTP request options.
* @since 2.1
*/
public function setRequestOptions(array $options)
{
$this->_requestOptions = $options;
}
/**
* @return array HTTP request options.
* @since 2.1
*/
public function getRequestOptions()
{
return $this->_requestOptions;
}
/**
* @return StateStorageInterface stage storage.
*/
public function getStateStorage()
{
if (!is_object($this->_stateStorage)) {
$this->_stateStorage = Yii::createObject($this->_stateStorage);
}
return $this->_stateStorage;
}
/**
* @param StateStorageInterface|array|string $stateStorage stage storage to be used.
*/
public function setStateStorage($stateStorage)
{
$this->_stateStorage = $stateStorage;
}
/**
* Generates service name.
* @return string service name.
*/
protected function defaultName()
{
return Inflector::camel2id(StringHelper::basename(get_class($this)));
}
/**
* Generates service title.
* @return string service title.
*/
protected function defaultTitle()
{
return StringHelper::basename(get_class($this));
}
/**
* Initializes authenticated user attributes.
* @return array auth user attributes.
*/
abstract protected function initUserAttributes();
/**
* Returns the default [[normalizeUserAttributeMap]] value.
* Particular client may override this method in order to provide specific default map.
* @return array normalize attribute map.
*/
protected function defaultNormalizeUserAttributeMap()
{
return [];
}
/**
* Returns the default [[viewOptions]] value.
* Particular client may override this method in order to provide specific default view options.
* @return array list of default [[viewOptions]]
*/
protected function defaultViewOptions()
{
return [];
}
/**
* Creates HTTP client instance from reference or configuration.
* @param string|array $reference component name or array configuration.
* @return Client HTTP client instance.
* @since 2.1
*/
protected function createHttpClient($reference)
{
return Instance::ensure($reference, Client::className());
}
/**
* Normalize given user attributes according to [[normalizeUserAttributeMap]].
* @param array $attributes raw attributes.
* @throws InvalidConfigException on incorrect normalize attribute map.
* @return array normalized attributes.
*/
protected function normalizeUserAttributes($attributes)
{
foreach ($this->getNormalizeUserAttributeMap() as $normalizedName => $actualName) {
if (is_scalar($actualName)) {
if (array_key_exists($actualName, $attributes)) {
$attributes[$normalizedName] = $attributes[$actualName];
}
} else {
if (is_callable($actualName)) {
$attributes[$normalizedName] = call_user_func($actualName, $attributes);
} elseif (is_array($actualName)) {
$haystack = $attributes;
$searchKeys = $actualName;
$isFound = true;
while (($key = array_shift($searchKeys)) !== null) {
if (is_array($haystack) && array_key_exists($key, $haystack)) {
$haystack = $haystack[$key];
} else {
$isFound = false;
break;
}
}
if ($isFound) {
$attributes[$normalizedName] = $haystack;
}
} else {
throw new InvalidConfigException('Invalid actual name "' . gettype($actualName) . '" specified at "' . get_class($this) . '::normalizeUserAttributeMap"');
}
}
}
return $attributes;
}
/**
* Creates HTTP request instance.
* @return \yii\httpclient\Request HTTP request instance.
* @since 2.1
*/
public function createRequest()
{
return $this->getHttpClient()
->createRequest()
->addOptions($this->defaultRequestOptions())
->addOptions($this->getRequestOptions());
}
/**
* Returns default HTTP request options.
* @return array HTTP request options.
* @since 2.1
*/
protected function defaultRequestOptions()
{
return [
'timeout' => 30,
];
}
/**
* Sets persistent state.
* @param string $key state key.
* @param mixed $value state value
* @return $this the object itself
*/
protected function setState($key, $value)
{
$this->getStateStorage()->set($this->getStateKeyPrefix() . $key, $value);
return $this;
}
/**
* Returns persistent state value.
* @param string $key state key.
* @return mixed state value.
*/
protected function getState($key)
{
return $this->getStateStorage()->get($this->getStateKeyPrefix() . $key);
}
/**
* Removes persistent state value.
* @param string $key state key.
* @return bool success.
*/
protected function removeState($key)
{
return $this->getStateStorage()->remove($this->getStateKeyPrefix() . $key);
}
/**
* Returns session key prefix, which is used to store internal states.
* @return string session key prefix.
*/
protected function getStateKeyPrefix()
{
return get_class($this) . '_' . $this->getId() . '_';
}
}