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<?php |
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|
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class Red_Htaccess { |
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var $settings; |
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var $items; |
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|
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function __construct( $settings ) { |
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foreach ( $settings AS $key => $value ) { |
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$this->settings[$key] = $value; |
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} |
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} |
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|
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function encode_from( $url ) { |
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return '^'.$this->encode( $url ).'$'; |
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} |
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|
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function encode2nd( $url ) { |
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$url = urlencode( $url ); |
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$url = str_replace( '%2F', '/', $url ); |
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$url = str_replace( '%3A', ':', $url ); |
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$url = str_replace( '+', '%20', $url ); |
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$url = str_replace( '%24', '$', $url ); |
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return $url; |
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} |
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|
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function encode( $url ) { |
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$url = urlencode( $url ); |
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$url = str_replace( '%2F', '/', $url ); |
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$url = str_replace( '+', '%20', $url ); |
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$url = str_replace( '.', '\\.', $url ); |
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return $url; |
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} |
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|
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function encode_regex( $url ) { |
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$url = str_replace( ' ', '%20', $url ); |
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$url = str_replace( '.', '\\.', $url ); |
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$url = str_replace( '\\.*', '.*', $url ); |
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$url = str_replace( '%24', '$', $url ); |
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return $url; |
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} |
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|
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function add_referrer( $item, $match ) { |
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$from = $this->encode_from( ltrim( $item->url, '/' ) ); |
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if ( $item->regex ) |
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$from = $this->encode_regex( ltrim( $item->url, '/' ) ); |
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|
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if ( ( $match->url_from || $match->url_notfrom ) && $match->referrer ) { |
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$this->items[] = sprintf( 'RewriteCond %%{HTTP_REFERER} %s [NC]', ( $match->regex ? $this->encode_regex( $match->referrer ) : $this->encode_from( $match->referrer ) ) ); |
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|
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if ( $match->url_from ) { |
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$to = $this->target( $item->action_type, $match->url_from, $item->action_code, $item->regex ); |
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$this->items[] = sprintf( 'RewriteRule %s %s', $from, $to ); |
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} |
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|
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if ( $match->url_notfrom ) { |
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$to = $this->target( $item->action_type, $match->url_notfrom, $item->action_code, $item->regex ); |
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$this->items[] = sprintf( 'RewriteRule %s %s', $from, $to ); |
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} |
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} |
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} |
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|
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function add_agent( $item, $match ) { |
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$from = $this->encode( ltrim( $item->url, '/' ) ); |
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if ( $item->regex ) |
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$from = $this->encode_regex( ltrim( $item->url, '/' ) ); |
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|
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if ( ( $match->url_from || $match->url_notfrom ) && $match->user_agent ) { |
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$this->items[] = sprintf( 'RewriteCond %%{HTTP_USER_AGENT} %s [NC]', ( $match->regex ? $this->encode_regex( $match->user_agent ) : $this->encode2nd( $match->user_agent ) ) ); |
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|
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if ( $match->url_from ) { |
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$to = $this->target( $item->action_type, $match->url_from, $item->action_code, $item->regex ); |
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$this->items[] = sprintf( 'RewriteRule %s %s', $from, $to ); |
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} |
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|
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if ( $match->url_notfrom ) { |
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$to = $this->target( $item->action_type, $match->url_notfrom, $item->action_code, $item->regex ); |
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$this->items[] = sprintf( 'RewriteRule %s %s', $from, $to ); |
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} |
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} |
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} |
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|
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function add_url( $item, $match ) { |
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$to = $this->target( $item->action_type, $match->url, $item->action_code, $item->regex ); |
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$from = $this->encode_from( ltrim( $item->url, '/' ) ); |
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if ( $item->regex ) |
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$from = $this->encode_regex( ltrim ($item->url, '/' ) ); |
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|
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if ( $to ) |
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$this->items[] = sprintf( 'RewriteRule %s %s', $from, $to ); |
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} |
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|
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function action_random( $data, $code, $regex ) { |
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// Pick a WP post at random |
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global $wpdb; |
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|
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$post = $wpdb->get_var( "SELECT ID FROM {$wpdb->posts} ORDER BY RAND() LIMIT 0,1" ); |
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$url = parse_url( get_permalink( $post ) ); |
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|
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return sprintf( '%s [R=%d,L]', $this->encode( $url['path'] ), $code ); |
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} |
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|
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function action_pass( $data, $code, $regex ) { |
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if ( $regex ) |
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return sprintf( '%s [L]', $this->encode2nd( $data ), $code ); |
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return sprintf( '%s [L]', $this->encode2nd( $data ), $code ); |
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} |
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|
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function action_error( $data, $code, $regex) { |
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if ( $code == '410' ) |
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return '/ [G,L]'; |
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return '/ [F,L]'; |
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} |
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|
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function action_url( $data, $code, $regex ) { |
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if ( $regex ) |
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return sprintf( '%s [R=%d,L]', $this->encode2nd( $data ), $code ); |
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return sprintf( '%s [R=%d,L]', $this->encode2nd( $data ), $code ); |
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} |
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|
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function target( $action, $data, $code, $regex ) { |
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$target = 'action_'.$action; |
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|
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if ( method_exists( $this, $target ) ) |
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return $this->$target( $data, $code, $regex ); |
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return ''; |
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} |
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|
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function add( $item ) { |
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$target = 'add_'.$item->match_type; |
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|
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if ( method_exists( $this, $target ) ) |
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$this->$target( $item, $item->match ); |
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} |
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|
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function generate( $name ) { |
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// Head of redirection section - do not localize this |
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global $redirection; |
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|
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$text[] = '# Created by Redirection Module: '.$name; |
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$text[] = '# '.date ('r'); |
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$text[] = '# Redirection '.$redirection->version().' - http://urbangiraffe.com/plugins/redirection/'; |
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$text[] = ''; |
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|
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// Default blocked files - I can't think of a reason not to block these |
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$text[] = '<Files .htaccess,.svn>'; |
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$text[] = 'order allow,deny'; |
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$text[] = 'deny from all'; |
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$text[] = '</Files>'; |
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$text[] = ''; |
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|
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// PHP options |
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if ( isset( $this->settings['error_level'] ) && $this->settings['error_level'] != 'default' ) |
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$text[] = 'php_value error_reporting '.( $this->settings == 'none' ? '0' : 'E_ALL' ); |
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|
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if ( isset( $this->settings['memory_limit'] ) && $this->settings['memory_limit'] != 0 ) |
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$text[] = 'php_value memory_limit '.$this->settings['memory_limit'].'M'; |
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|
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if ( ( isset( $this->settings['allow_ip'] ) && $this->settings['allow_ip'] ) || ( isset( $this->settings['ban_ip'] ) && $this->settings['ban_ip'] ) ) { |
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$text[] = ''; |
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$text[] = 'order allow,deny'; |
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|
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if ( isset( $this->settings['ban_ip'] ) && $this->settings['ban_ip'] ) { |
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$ips = array_filter( explode( ',', $this->settings['ban_ip'] ) ); |
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|
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if ( count( $ips ) > 0 ) { |
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foreach ( $ips AS $ip ) { |
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$text[] = 'deny from '.$ip; |
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} |
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} |
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} |
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|
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if ( $this->settings['allow_ip'] ) { |
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$ips = array_filter( explode( ',', $this->settings['allow_ip'] ) ); |
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|
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if ( count( $ips ) > 0 ) { |
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foreach ( $ips AS $ip ) { |
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$text[] = 'allow from '.$ip; |
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} |
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} |
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} |
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else |
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$text[] = 'allow from all'; |
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} |
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|
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// mod_rewrite section |
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$text[] = ''; |
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$text[] = 'Options +FollowSymlinks'; |
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$text[] = ''; |
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$text[] = '<IfModule mod_rewrite.c>'; |
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|
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if ( $this->settings['canonical'] != 'default' ) { |
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$text[] = 'RewriteEngine On'; |
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$base = $this->settings['site']; |
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|
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if ( $base == '' ) |
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$base = get_option( 'home' ); |
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|
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$parts = parse_url( $base ); |
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$base = str_replace( 'www.', '', $parts['host'] ); |
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|
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if ( $this->settings['canonical'] == 'nowww' ) { |
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$text[] = 'RewriteCond %{HTTP_HOST} ^www\.'.str_replace( '.', '\\.', $base ).'$ [NC]'; |
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$text[] = 'RewriteRule ^(.*)$ http://'.$base.'/$1 [R=301,L]'; |
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} |
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elseif ( $this->settings['canonical'] == 'www' ) { |
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$text[] = 'RewriteCond %{HTTP_HOST} ^'.str_replace( '.', '\\.', $base ).'$ [NC]'; |
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$text[] = 'RewriteRule ^(.*)$ http://www.'.$base.'/$1 [R=301,L]'; |
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} |
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|
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$text[] = ''; |
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} |
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|
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if ( $this->settings['strip_index'] == 'yes' ) { |
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$text[] = 'RewriteCond %{THE_REQUEST} (.*)index\.(php|htm|html)\ HTTP/'; |
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$text[] = 'RewriteRule ^(.*)index\.(php|html|htm)$ $1 [R=301,NC,L]'; |
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$text[] = ''; |
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} |
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|
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// Add redirects |
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if ( is_array( $this->items ) ) |
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$text = array_merge( $text, $this->items ); |
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|
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// End of mod_rewrite |
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$text[] = '</IfModule>'; |
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$text[] = ''; |
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|
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if ( isset( $this->settings['raw'] ) && $this->settings['raw'] ) |
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$text[] = $this->settings['raw']; |
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|
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// End of redirection section |
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$text[] = '# End of Redirection'; |
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$text[] = ''; |
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|
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$text = implode( "\r\n", $text ); |
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$text = str_replace( "\r\n\r\n\r\n", "\r\n", $text ); |
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$text = str_replace( "\r\n\r\n\r\n", "\r\n", $text ); |
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return $text; |
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} |
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|
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function save( $filename, $name ) { |
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$text = $this->generate( $name ); |
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|
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// Does the file already exist? |
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if ( file_exists( $filename) ) { |
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$existing = @file_get_contents( $filename ); |
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|
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// Remove any existing Redirection module |
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$text .= preg_replace( '@# Created by Redirection Module: '.$name.'(.*?)# End of Redirection@s', '', $existing ); |
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} |
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|
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$file = @fopen( $filename, 'w' ); |
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if ( $file ) { |
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$text = str_replace( "\r\n\r\n\r\n", "\r\n", $text ); |
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$text = str_replace( "\r\n\r\n\r\n", "\r\n", $text ); |
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|
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fwrite( $file, $text ); |
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fclose( $file ); |
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return true; |
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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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|
