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<?php |
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namespace App\Http\Filter; |
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use Yii; |
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use yii\di\Instance; |
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use yii\filters\ContentNegotiator as BaseContentNegotiator; |
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use yii\web\User; |
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use yii\web\Cookie; |
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class ContentNegotiator extends BaseContentNegotiator |
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{ |
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/** |
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* A user component. |
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* |
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* @var string|User |
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*/ |
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public $user = 'user'; |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function negotiateLanguage($request) |
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{ |
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if (empty($this->languageParam) || ($language = $request->get($this->languageParam)) === null) { |
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$language = null; |
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$this->user = Instance::ensure($this->user, User::class); |
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if (!$this->user->getIsGuest() && ($identity = $this->user->getIdentity()) instanceof LanguagePickerInterface) { |
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$language = $identity->getLanguage(); |
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$picked = $this->pick($language); |
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if ($picked !== null) { |
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return $picked; |
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} |
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} |
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$language = $request->getCookies()->getValue($this->languageParam, null); |
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$picked = $this->pick($language); |
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if ($picked !== null) { |
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return $picked; |
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} |
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} |
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return parent::negotiateLanguage($request); |
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} |
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/** |
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* Pick language. |
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* |
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* @param string $language |
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* |
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* @return string|null returns a supportted language, returns null if not supported. |
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*/ |
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protected function pick($language) |
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{ |
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if ($language === null) { |
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return null; |
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} |
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if (isset($this->languages[$language])) { |
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return $this->languages[$language]; |
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} |
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foreach ($this->languages as $key => $supported) { |
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if (is_int($key) && $this->isLanguageSupported($language, $supported)) { |
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return $supported; |
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} |
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} |
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return null; |
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} |
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/** |
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* Store language to cookie. |
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* |
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* @param string $lang |
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*/ |
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public function storeLanguageToCookie($lang) |
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{ |
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$cookie = new Cookie(['name' => $this->languageParam, 'value' => $lang]); |
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Yii::$app->getResponse()->getCookies()->add($cookie); |
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} |
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} |
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razonyang /
yii2-app-template
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