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<?php |
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|
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class Red_Htaccess |
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{ |
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var $settings; |
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var $items; |
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|
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function Red_Htaccess ($settings) |
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{ |
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foreach ($settings AS $key => $value) |
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$this->settings[$key] = $value; |
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} |
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|
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function encode_from ($url) |
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{ |
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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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{ |
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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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{ |
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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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{ |
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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, $match) |
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{ |
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$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) && $match->referrer) |
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{ |
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$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 ($match->url_from) |
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{ |
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$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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{ |
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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, $match) |
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{ |
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$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) && $match->user_agent) |
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{ |
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$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 ($match->url_from) |
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{ |
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$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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{ |
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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, $match) |
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{ |
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$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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{ |
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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, $regex) |
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{ |
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if ($regex) |
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return sprintf ('%s [L]', $this->encode2nd ($data), $code); |
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else |
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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, $regex) |
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{ |
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if ($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, $regex) |
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{ |
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if ($regex) |
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return sprintf ('%s [R=%d,L]', $this->encode2nd ($data), $code); |
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else |
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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, $regex) |
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{ |
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$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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{ |
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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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{ |
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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 '.$this->settings['memory_limit'].'M'; |
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|
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if ($this->settings['allow_ip'] || $this->settings['ban_ip']) |
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{ |
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$text[] = ''; |
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$text[] = 'order allow,deny'; |
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if ($this->settings['ban_ip']) |
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{ |
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$ips = array_filter (explode (',', $this->settings['ban_ip'])); |
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if (count ($ips) > 0) |
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{ |
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foreach ($ips AS $ip) |
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$text[] = 'deny from '.$ip; |
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} |
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} |
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|
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if ($this->settings['allow_ip']) |
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{ |
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$ips = array_filter (explode (',', $this->settings['allow_ip'])); |
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if (count ($ips) > 0) |
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{ |
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foreach ($ips AS $ip) |
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$text[] = 'allow from '.$ip; |
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} |
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} |
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else |
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$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 ($this->settings['canonical'] != 'default') |
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{ |
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$text[] = 'RewriteEngine On'; |
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$base = $this->settings['site']; |
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if ($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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{ |
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$text[] = 'RewriteCond %{HTTP_HOST} ^www\.'.str_replace ('.', '\\.', $base).'$ [NC]'; |
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$text[] = 'RewriteRule ^(.*)$ http://'.$base.'/$1 [R=301,L]'; |
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} |
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else if ($this->settings['canonical'] == 'www') |
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{ |
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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 ($this->settings['strip_index'] == 'yes') |
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{ |
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$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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$text[] = ''; |
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|
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if ($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, $name) |
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{ |
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$text = $this->generate ($name); |
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|
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// Does the file already exist? |
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if (file_exists ($filename)) |
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{ |
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$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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{ |
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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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|
