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<?php |
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namespace vipnytt\RobotsTxtParser\Parser\Directives; |
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use vipnytt\RobotsTxtParser\Client\Directives\AllowClient; |
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use vipnytt\RobotsTxtParser\Exceptions; |
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use vipnytt\RobotsTxtParser\RobotsTxtInterface; |
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/** |
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* Class AllowParser |
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* |
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* @package vipnytt\RobotsTxtParser\Parser\Directives |
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*/ |
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class AllowParser implements ParserInterface, RobotsTxtInterface |
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{ |
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use DirectiveParserCommons; |
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/** |
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* Sub directives white list |
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*/ |
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const SUB_DIRECTIVES = [ |
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self::DIRECTIVE_CLEAN_PARAM, |
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self::DIRECTIVE_HOST, |
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]; |
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/** |
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* Directive |
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* @var string |
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*/ |
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private $directive; |
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/** |
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* Path |
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* @var array |
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*/ |
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private $path = []; |
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/** |
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* Sub-directive Clean-param |
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* @var CleanParamParser |
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*/ |
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private $cleanParam; |
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/** |
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* Sub-directive Host |
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* @var HostParser |
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*/ |
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private $host; |
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/** |
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* AllowParser constructor |
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* |
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* @param string $base |
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* @param string $effective |
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* @param string $directive |
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*/ |
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public function __construct($base, $effective, $directive) |
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{ |
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$this->directive = $directive; |
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$this->cleanParam = new CleanParamParser(); |
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$this->host = new HostParser($base, $effective, $this->directive); |
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} |
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/** |
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* Add |
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* |
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* @param string $line |
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* @return bool |
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*/ |
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public function add($line) |
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{ |
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$pair = $this->generateRulePair($line, self::SUB_DIRECTIVES); |
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switch ($pair['directive']) { |
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case self::DIRECTIVE_CLEAN_PARAM: |
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return $this->cleanParam->add($pair['value']); |
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case self::DIRECTIVE_HOST: |
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return $this->host->add($pair['value']); |
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} |
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return $this->addPath($line); |
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} |
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/** |
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* Add plain path to allow/disallow |
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* |
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* @param string $path |
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* @return bool |
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*/ |
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private function addPath($path) |
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{ |
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foreach ([ |
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$path, |
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'/', |
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'*', |
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] as $testPath) { |
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if (in_array($testPath, $this->path)) { |
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return false; |
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} |
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} |
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if ($this->isPath($path)) { |
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$this->path[] = $path; |
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$this->removeOverlapping(); |
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} |
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return in_array($path, $this->path); |
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} |
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/** |
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* Check if path is valid |
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* |
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* @param string $path |
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* @return bool |
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*/ |
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private function isPath($path) |
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{ |
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if (mb_strpos($path, '/') !== 0) { |
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foreach ( |
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[ |
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'*', |
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'?', |
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] as $char) { |
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$path = str_replace($char, '/', $path); |
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} |
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} |
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return mb_strpos($path, '/') === 0; |
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} |
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/** |
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* Remove overlapping paths |
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* |
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* @return bool |
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*/ |
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private function removeOverlapping() |
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{ |
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foreach ($this->path as $key1 => $path1) { |
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foreach ($this->path as $key2 => $path2) { |
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if ( |
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$key1 !== $key2 && |
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mb_strpos($path1, $path2) === 0 |
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) { |
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unset($this->path[$key1]); |
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return $this->removeOverlapping(); |
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} |
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} |
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} |
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return true; |
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} |
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/** |
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* Render |
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* |
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149
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* @return string[] |
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*/ |
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151
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public function render() |
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{ |
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$result = []; |
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foreach ( |
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[ |
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$this->host->render(), |
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$this->path, |
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$this->cleanParam->render(), |
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] as $values |
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) { |
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sort($values); |
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foreach ($values as $value) { |
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$result[] = $this->directive . ':' . $value; |
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} |
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} |
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return $result; |
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} |
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/** |
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170
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* Client |
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171
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* |
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172
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* @return AllowClient |
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173
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*/ |
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174
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public function client() |
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{ |
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return new AllowClient($this->path, $this->host->client(), $this->cleanParam->client()); |
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} |
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178
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} |
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179
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|
|
VIPnytt /
RobotsTxtParser
