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<?php |
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/** |
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* File containing the class {@see \AppUtils\Request_URLComparer}. |
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* |
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* @package Application Utils |
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* @subpackage Request |
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* @see \AppUtils\Request_URLComparer |
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*/ |
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declare(strict_types=1); |
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namespace AppUtils; |
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/** |
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* URL comparison class: used to check if URLs match |
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* independently of the order of parameters, or fragments |
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* and the like. Allows specifying parameters that should |
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* be excluded from the comparison as well. |
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* |
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* @package Application Utils |
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* @subpackage Request |
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* @author Sebastian Mordziol <[email protected]> |
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*/ |
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class Request_URLComparer |
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{ |
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/** |
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* @var Request |
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*/ |
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protected $request; |
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/** |
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* @var string |
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*/ |
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protected $sourceURL; |
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/** |
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* @var string |
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*/ |
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protected $targetURL; |
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/** |
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* @var array |
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*/ |
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protected $limitParams = array(); |
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/** |
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* @var bool |
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*/ |
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protected $isMatch = false; |
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/** |
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* @var bool |
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*/ |
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protected $ignoreFragment = true; |
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/** |
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* @var URLInfo |
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*/ |
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protected $sourceInfo; |
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/** |
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* @var URLInfo |
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*/ |
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protected $targetInfo; |
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public function __construct(Request $request, string $sourceURL, string $targetURL) |
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{ |
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$this->request = $request; |
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$this->sourceURL = $sourceURL; |
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$this->targetURL = $targetURL; |
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} |
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public function isMatch() : bool |
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{ |
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$this->init(); |
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return $this->isMatch; |
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} |
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public function addLimitParam(string $name) : Request_URLComparer |
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{ |
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if(!in_array($name, $this->limitParams)) { |
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$this->limitParams[] = $name; |
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} |
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return $this; |
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} |
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public function addLimitParams(array $names) : Request_URLComparer |
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{ |
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foreach($names as $name) { |
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$this->addLimitParam($name); |
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} |
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return $this; |
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} |
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public function setIgnoreFragment(bool $ignore=true) : Request_URLComparer |
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{ |
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$this->ignoreFragment = $ignore; |
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return $this; |
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} |
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protected function init() |
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{ |
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// so they are always in the same order. |
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sort($this->limitParams); |
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$this->isMatch = $this->compare(); |
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} |
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protected function compare() |
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{ |
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$this->sourceInfo = parseURL($this->sourceURL); |
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$this->targetInfo = parseURL($this->targetURL); |
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$keys = array( |
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'scheme', |
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'host', |
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'path', |
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'query' |
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); |
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if(!$this->ignoreFragment) { |
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$keys[] = 'fragment'; |
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} |
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foreach($keys as $key) |
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{ |
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if(!$this->compareKey($key)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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protected function compareKey(string $key) : bool |
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{ |
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$sVal = $this->sourceInfo[$key]; |
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$tVal = $this->targetInfo[$key]; |
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$filter = 'filter_'.$key; |
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if(method_exists($this, $filter)) |
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{ |
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$sVal = $this->$filter($sVal); |
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$tVal = $this->$filter($tVal); |
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} |
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return $sVal === $tVal; |
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} |
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protected function filter_path(string $path) : string |
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{ |
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// fix double slashes in URLs |
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while(stristr($path, '//')) { |
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$path = str_replace('//', '/', $path); |
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} |
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return ltrim($path, '/'); |
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} |
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protected function filter_query(string $query) : string |
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{ |
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if(empty($query)) { |
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return ''; |
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} |
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$params = ConvertHelper::parseQueryString($query); |
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$params = $this->limitParams($params); |
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ksort($params); |
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return serialize($params); |
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} |
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protected function limitParams(array $params) : array |
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{ |
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if(empty($this->limitParams)) { |
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return $params; |
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} |
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$keep = array(); |
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foreach($this->limitParams as $name) |
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{ |
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if(isset($params[$name])) { |
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$keep[$name] = $params[$name]; |
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} |
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} |
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return $keep; |
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} |
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} |
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