rule_file_name = 'web.config'; }else{ $this->rule_file_name = '.htaccess'; } $this->rule_file = $dataDir.'/'.$this->rule_file_name; gp_filesystem_base::init($this->rule_file); echo '

'.$langmessage['permalink_settings'].'

'; $cmd = common::GetCommand(); switch($cmd){ case 'continue': if( !$this->SaveHtaccess() ){ break; } default: $this->ShowForm(); break; } } /** * Display Permalink Options * */ function ShowForm(){ global $langmessage, $gp_filesystem; $confirmed_mod_rewrite = false; if( function_exists('apache_get_modules') ){ $mods = apache_get_modules(); if( in_array('mod_rewrite',$mods) !== false ){ $confirmed_mod_rewrite = true; } } if( !$confirmed_mod_rewrite ){ echo '

'; echo $langmessage['limited_mod_rewrite']; echo '

'; } echo '
'; echo ''; echo ''; //default $checked = ''; if( !$_SERVER['gp_rewrite'] ){ $checked = 'checked="checked"'; } echo ''; //hide index.php $checked = ''; if( $_SERVER['gp_rewrite'] ){ $checked = 'checked="checked"'; } echo ''; echo '
'.$langmessage['options'].'
'; echo ''; echo ''; echo ' 
';
			echo $this->ExampleUrl(true);
			echo '
'; echo '
'; echo ''; echo ''; echo ' 
';
			echo $this->ExampleUrl(false);
			echo '
'; echo '
'; echo '

'; echo ''; echo ''; echo '

'; echo '
'; } function ExampleUrl($index_php){ global $dirPrefix; if( isset($_SERVER['HTTP_HOST']) ){ $server = $_SERVER['HTTP_HOST']; }else{ $server = $_SERVER['SERVER_NAME']; } $schema = ( isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://'; if( $index_php ){ $temp_prefix = $dirPrefix.'/index.php'; }else{ $temp_prefix = $dirPrefix; } return $schema.$server.$temp_prefix.'/sample-page'; } /** * Determine how to save the htaccess file to the server (ftp,direct,manual) and give user the appropriate options * * @return boolean true if the .htaccess file is saved */ function SaveHtaccess(){ global $gp_filesystem, $langmessage, $dirPrefix; if( isset($_POST['rewrite_setting']) && $_POST['rewrite_setting'] == 'hide_index' ){ $this->changed_to_hide = true; } // only proceed with hide if we can test the results if( !gpRemoteGet::Test() ){ $this->ManualMethod(); return false; } if( !$gp_filesystem->ConnectOrPrompt('Admin_Permalinks') ){ $this->ManualMethod(); return false; } if( !$this->SaveRules() ){ $gp_filesystem->CompleteForm($_POST,'Admin_Permalinks'); $this->ManualMethod(); return false; } message($langmessage['SAVED']); //redirect to new permalink structure $_SERVER['gp_rewrite'] = $this->changed_to_hide; common::SetLinkPrefix(); $redir = common::GetUrl('Admin_Permalinks'); common::Redirect($redir,302); return false; } /** * Display instructions for manually creating the htaccess/web.config file * */ function ManualMethod(){ global $langmessage, $dirPrefix; $rules = admin_permalinks::Rewrite_Rules( $this->changed_to_hide, $dirPrefix ); echo '

'.$langmessage['manual_method'].'

'; echo '

'; echo str_replace('.htaccess',$this->rule_file_name,$langmessage['manual_htaccess']); echo '

'; //display rewrite code in textarea $lines = explode("\n",$rules); $len = 70; foreach($lines as $line){ $line_len = strlen($line)+(substr_count($line,"\t")*3); $len = max($len,$line_len); } $len = min(140,$len); echo ''; echo '
'; echo ''; echo '
'; } /** * Save the htaccess rule to the server using $filesystem and test to make sure we aren't getting 500 errors * * @access public * @since 1.7 * * @return boolean */ function SaveRules(){ global $gp_filesystem, $langmessage, $dirPrefix; //get current .htaccess $original_contents = false; if( file_exists($this->rule_file) ){ $original_contents = file_get_contents($this->rule_file); } //add/remove gpEasy rules from $original_contents to get new $contents $contents = admin_permalinks::Rewrite_Rules( $this->changed_to_hide, $dirPrefix, $original_contents ); if( $contents === false ){ return false; } $filesystem_base = $gp_filesystem->get_base_dir(); if( $filesystem_base === false ){ return false; } $filesystem_path = $filesystem_base.'/'.$this->rule_file_name; if( !$gp_filesystem->put_contents($filesystem_path,$contents) ){ return false; } //if TestResponse Fails, undo the changes //only need to test for hiding if( $this->changed_to_hide && !admin_permalinks::TestResponse() ){ if( $original_contents === false ){ $gp_filesystem->unlink($filesystem_path); }else{ $gp_filesystem->put_contents($filesystem_path,$original_contents); } return false; } return true; } /** * Try to fetch a response using RemoteGet to see if we're getting a 500 error * * @access public * @static * @since 1.7 * * @return boolean */ static function TestResponse(){ //get url, force gp_rewrite to $new_gp_rewrite $rewrite_before = $_SERVER['gp_rewrite']; $_SERVER['gp_rewrite'] = true; common::SetLinkPrefix(); $abs_url = common::AbsoluteUrl('Site_Map','',true,false); $_SERVER['gp_rewrite'] = $rewrite_before; common::SetLinkPrefix(); $result = gpRemoteGet::Get_Successful($abs_url); if( !$result ){ return false; } return true; } /** * Strip rules enclosed by gpEasy comments * * @access public * @static * @since 1.7 * * @param string $contents .htaccess file contents */ static function StripRules(&$contents){ //strip gpEasy code $pos = strpos($contents,'# BEGIN gpEasy'); if( $pos === false ){ return; } $end_comment = '# END gpEasy'; $pos2 = strpos($contents,$end_comment); if( $pos2 > $pos ){ $contents = substr_replace($contents,'',$pos,$pos2-$pos+strlen($end_comment)); }else{ $contents = substr($contents,0,$pos); } $contents = rtrim($contents); } /** * Return the .htaccess code that can be used to hide index.php * */ static function Rewrite_Rules( $hide_index = true, $home_root, $existing_contents = '' ){ if( !$existing_contents ){ $existing_contents = ''; } // IIS if( self::IIS() ){ return self::Rewrite_RulesIIS( $hide_index, $existing_contents ); } // Apache admin_permalinks::StripRules($existing_contents); if( !$hide_index ){ return $existing_contents; } $home_root = rtrim($home_root,'/').'/'; return $existing_contents . "\n\n".'# BEGIN gpEasy RewriteEngine On RewriteBase "'.$home_root.'" # Don\'t rewrite multiple times RewriteCond %{QUERY_STRING} gp_rewrite RewriteRule .* - [L] # Redirect away from requests with index.php RewriteRule index\.php(.*) $1 [R=302,L] # Add gp_rewrite to root requests RewriteRule ^$ "'.$home_root.'index.php?gp_rewrite" [qsa,L] # Don\'t rewrite for static files RewriteCond %{REQUEST_FILENAME} -f [OR] RewriteCond %{REQUEST_FILENAME} -d [OR] RewriteCond %{REQUEST_URI} \.(js|css|jpe?g|jpe|gif|png|ico)$ [NC] RewriteRule .* - [L] # Send all other requests to index.php # Append the gp_rewrite argument to tell gpEasy not to use index.php and to prevent multiple rewrites RewriteRule /?(.*) "'.$home_root.'index.php?gp_rewrite=$1" [qsa,L] # END gpEasy'; } /** * Optimally, generating rules for IIS would involve parsing the xml and integrating gpEasy rules * */ function Rewrite_RulesIIS( $hide_index = true, $existing_contents ){ // anything less than 80 characters can be replaced safely // other than that, users should handle manually // Example empty configuration: < ?xml version="1.0" encoding="UTF-8" ? > if( strlen($existing_contents) > 80 ){ return false; } if( !$hide_index ){ return ' '; } return ' '; } /** * Determine if gpEasy installed on an IIS Server * */ static function IIS(){ if( strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false || strpos($_SERVER['SERVER_SOFTWARE'], 'ExpressionDevServer') !== false ){ return true; } return false; } }