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<?php |
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namespace Mezon\Router; |
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class UrlParser |
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{ |
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/** |
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* Parsed parameters of the calling router |
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* |
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* @var array |
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*/ |
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protected $parameters = []; |
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/** |
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* Matching parameter and component |
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* |
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* @param mixed $component |
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* Component of the URL |
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* @param string $parameter |
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* Parameter to be matched |
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* @return string Matched url parameter |
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*/ |
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private function _matchParameterAndComponent(&$component, string $parameter) |
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{ |
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$parameterData = explode(':', trim($parameter, '[]')); |
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$return = ''; |
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switch ($parameterData[0]) { |
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case ('i'): |
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if (is_numeric($component)) { |
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$component = $component + 0; |
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$return = $parameterData[1]; |
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} |
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break; |
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case ('a'): |
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if (preg_match('/^([a-z0-9A-Z_\/\-\.\@]+)$/', $component)) { |
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$return = $parameterData[1]; |
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} |
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break; |
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case ('il'): |
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if (preg_match('/^([0-9,]+)$/', $component)) { |
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$return = $parameterData[1]; |
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} |
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break; |
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case ('s'): |
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$component = htmlspecialchars($component, ENT_QUOTES); |
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$return = $parameterData[1]; |
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break; |
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default: |
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throw (new \Exception('Illegal parameter type/value : ' . $parameterData[0])); |
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} |
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return $return; |
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} |
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/** |
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* Method matches route and pattern |
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* |
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* @param array $cleanRoute |
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* Cleaned route splitted in parts |
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* @param array $cleanPattern |
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* Route pattern |
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* @return array|bool Array of route's parameters |
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*/ |
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private function _matchRouteAndPattern(array $cleanRoute, array $cleanPattern) |
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{ |
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if (count($cleanRoute) !== count($cleanPattern)) { |
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return false; |
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} |
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$paremeters = []; |
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$patternsCount = count($cleanPattern); |
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for ($i = 0; $i < $patternsCount; $i ++) { |
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if (\Mezon\Router\Utils::isParameter($cleanPattern[$i])) { |
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$parameterName = $this->_matchParameterAndComponent($cleanRoute[$i], $cleanPattern[$i]); |
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// it's a parameter |
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if ($parameterName !== '') { |
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// parameter was matched, store it! |
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$paremeters[$parameterName] = $cleanRoute[$i]; |
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} else { |
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return false; |
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} |
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} else { |
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// it's a static part of the route |
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if ($cleanRoute[$i] !== $cleanPattern[$i]) { |
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return false; |
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} |
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} |
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} |
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$this->parameters = $paremeters; |
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} |
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/** |
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* Method searches dynamic route processor |
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* |
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* @param array $processors |
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* Callable router's processor |
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* @param string $route |
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* Route |
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* @return string|bool Result of the router'scall or false if any error occured |
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*/ |
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public function findDynamicRouteProcessor(array &$processors, string $route) |
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{ |
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$cleanRoute = explode('/', trim($route, '/')); |
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foreach ($processors as $i => $processor) { |
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$cleanPattern = explode('/', trim($i, '/')); |
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if ($this->_matchRouteAndPattern($cleanRoute, $cleanPattern) !== false) { |
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return call_user_func($processor, $route, $this->parameters); // return result of the router |
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} |
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} |
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return false; |
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} |
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/** |
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* Method searches route processor |
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* |
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* @param mixed $processors |
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* Callable router's processor |
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* @param string $route |
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* Route |
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* @return mixed Result of the router processor |
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*/ |
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public function findStaticRouteProcessor(&$processors, string $route) |
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{ |
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foreach ($processors as $i => $processor) { |
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// exact router or 'all router' |
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if ($i == $route || $i == '/*/') { |
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if (is_callable($processor) && is_array($processor) === false) { |
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return $processor($route, []); |
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} |
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$functionName = $processor[1] ?? null; |
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if (is_callable($processor) && |
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(method_exists($processor[0], $functionName) || isset($processor[0]->$functionName))) { |
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// passing route path and parameters |
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return call_user_func($processor, $route, []); |
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} else { |
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$callableDescription = \Mezon\Router\Utils::getCallableDescription($processor); |
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if (isset($processor[0]) && method_exists($processor[0], $functionName) === false) { |
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throw (new \Exception("'$callableDescription' does not exists")); |
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} else { |
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throw (new \Exception("'$callableDescription' must be callable entity")); |
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} |
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} |
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} |
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} |
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return false; |
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} |
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159
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/** |
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160
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* Method returns route parameter |
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161
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* |
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* @param string $name |
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* Route parameter |
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* @return string Route parameter |
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*/ |
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public function getParam(string $name): string |
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167
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{ |
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if (isset($this->parameters[$name]) === false) { |
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throw (new \Exception('Parameter ' . $name . ' was not found in route', - 1)); |
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} |
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return $this->parameters[$name]; |
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} |
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175
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/** |
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* Does parameter exists |
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* |
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* @param string $name |
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* Param name |
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180
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* @return bool True if the parameter exists |
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181
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*/ |
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182
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public function hasParam(string $name): bool |
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183
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{ |
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184
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return isset($this->parameters[$name]); |
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} |
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186
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} |
alexdodonov /
mezon-router
