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<?php |
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namespace League\Plates\Extension; |
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use League\Plates\Engine; |
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use League\Plates\Template\Template; |
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use LogicException; |
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/** |
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* Extension that adds a number of URI checks. |
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*/ |
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class URI implements ExtensionInterface |
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{ |
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/** |
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* Instance of the current template. |
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* @var Template |
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*/ |
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public $template; |
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/** |
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* The request URI. |
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* @var string |
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*/ |
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protected $uri; |
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/** |
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* The request URI as an array. |
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* @var array |
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*/ |
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protected $parts; |
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/** |
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* Create new URI instance. |
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* @param string $uri |
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*/ |
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public function __construct($uri) |
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{ |
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$this->uri = $uri; |
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$this->parts = explode('/', $this->uri); |
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} |
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/** |
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* Register extension functions. |
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* @param Engine $engine |
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* @return null |
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*/ |
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public function register(Engine $engine) |
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{ |
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$engine->registerFunction('uri', array($this, 'runUri')); |
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} |
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/** |
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* Perform URI check. |
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* @param null|integer|string $var1 |
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* @param mixed $var2 |
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* @param mixed $var3 |
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* @param mixed $var4 |
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* @return mixed |
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*/ |
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public function runUri($var1 = null, $var2 = null, $var3 = null, $var4 = null) |
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{ |
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if (is_null($var1)) { |
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return $this->uri; |
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} |
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if (is_numeric($var1) and is_null($var2)) { |
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return array_key_exists($var1, $this->parts) ? $this->parts[$var1] : null; |
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} |
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if (is_numeric($var1) and is_string($var2)) { |
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return $this->checkUriSegmentMatch($var1, $var2, $var3, $var4); |
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} |
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if (is_string($var1)) { |
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return $this->checkUriRegexMatch($var1, $var2, $var3); |
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} |
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throw new LogicException('Invalid use of the uri function.'); |
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} |
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/** |
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* Perform a URI segment match. |
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* @param integer $key |
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* @param string $string |
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* @param mixed $returnOnTrue |
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* @param mixed $returnOnFalse |
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* @return mixed |
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*/ |
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protected function checkUriSegmentMatch($key, $string, $returnOnTrue = null, $returnOnFalse = null) |
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{ |
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if (array_key_exists($key, $this->parts) && $this->parts[$key] === $string) { |
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return is_null($returnOnTrue) ? true : $returnOnTrue; |
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} |
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return is_null($returnOnFalse) ? false : $returnOnFalse; |
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} |
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/** |
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* Perform a regular express match. |
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* @param string $regex |
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* @param mixed $returnOnTrue |
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* @param mixed $returnOnFalse |
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* @return mixed |
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*/ |
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protected function checkUriRegexMatch($regex, $returnOnTrue = null, $returnOnFalse = null) |
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{ |
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if (preg_match('#^' . $regex . '$#', $this->uri) === 1) { |
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return is_null($returnOnTrue) ? true : $returnOnTrue; |
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} |
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return is_null($returnOnFalse) ? false : $returnOnFalse; |
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} |
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} |
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thephpleague /
plates
