Erkan IŞIK
112 lines
2.5 KiB
PHP
112 lines
2.5 KiB
PHP
<?php namespace ZN;
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/**
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* ZN PHP Web Framework
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*
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* "Simplicity is the ultimate sophistication." ~ Da Vinci
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*
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* @package ZN
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* @license MIT [http://opensource.org/licenses/MIT]
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* @author Ozan UYKUN [ozan@znframework.com]
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*/
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class Robots
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{
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/**
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* Robots file
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*
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* @var string
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*/
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protected static $file = 'robots.txt';
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/**
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* Creates robots.txt
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*/
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public static function create()
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{
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$rules = Config::get('Robots', 'rules');
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$robots = '';
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if( IS::array($rules) ) foreach( $rules as $key => $val )
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{
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# Single usage
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if( ! is_numeric($key) )
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{
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self::createFileContent($key, $val, $robots);
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}
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# Multi usage
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else
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{
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if( IS::array($val) ) foreach( $val as $r => $v )
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{
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self::createFileContent($r, $v, $robots);
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}
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}
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}
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# If the content to be written is the same, rewriting is not performed.
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if( trim($robots) === self::getContent() )
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{
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return false;
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}
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# The contents of the robot file are created.
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return (bool) self::putContent($robots);
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}
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/**
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* Protected get file path
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*/
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protected static function getFilePath()
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{
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$file = self::$file;
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if( defined('ZN_SHARED_DIR') )
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{
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$file = ZN_SHARED_DIR . $file; // @codeCoverageIgnore
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}
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return $file;
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}
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/**
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* Protected put robots content
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*/
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protected static function putContent($robots)
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{
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return file_put_contents(self::getFilePath(), trim($robots));
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}
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/**
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* Protected get robots content
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*/
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protected static function getContent()
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{
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if( is_file($file = self::getFilePath()) )
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{
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return trim(file_get_contents($file));
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}
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return '';
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}
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/**
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* Protected create robots file content
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*/
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protected static function createFileContent($key, $val, &$robots)
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{
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switch( $key )
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{
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case 'userAgent':
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$robots .= ! empty( $val ) ? 'User-agent: ' . $val . EOL : '';
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break;
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case 'allow' :
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case 'disallow' :
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if( ! empty($val) ) foreach( $val as $v )
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{
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$robots .= ucfirst($key) . ': ' . $v . EOL;
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}
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break;
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}
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}
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} |