update('ContentNegotiator', 'encoding', $encoding); } /** * Return the character encoding set bhy ContentNegotiator::set_encoding(). It's recommended that all classes * that need to specify the character set make use of this function. * * @deprecated 4.0 Use the "ContentNegotiator.encoding" config setting instead */ public static function get_encoding() { Deprecation::notice('4.0', 'Use the "ContentNegotiator.encoding" config setting instead'); return Config::inst()->get('ContentNegotiator', 'encoding'); } /** * Enable content negotiation for all templates, not just those with the xml header. * * @deprecated 4.0 Use the "ContentNegotiator.enabled" config setting instead */ public static function enable() { Deprecation::notice('4.0', 'Use the "ContentNegotiator.enabled" config setting instead'); Config::inst()->update('ContentNegotiator', 'enabled', true); } /** * Disable content negotiation for all templates, not just those with the xml header. * * @deprecated 4.0 Use the "ContentNegotiator.enabled" config setting instead */ public static function disable() { Deprecation::notice('4.0', 'Use the "ContentNegotiator.enabled" config setting instead'); Config::inst()->update('ContentNegotiator', 'enabled', false); } /** * Returns true if negotation is enabled for the given response. * By default, negotiation is only enabled for pages that have the xml header. */ public static function enabled_for($response) { $contentType = $response->getHeader("Content-Type"); // Disable content negotation for other content types if($contentType && substr($contentType, 0,9) != 'text/html' && substr($contentType, 0,21) != 'application/xhtml+xml') { return false; } if(Config::inst()->get('ContentNegotiator', 'enabled')) return true; else return (substr($response->getBody(),0,5) == '<' . '?xml'); } public static function process(SS_HTTPResponse $response) { if(!self::enabled_for($response)) return; $mimes = array( "xhtml" => "application/xhtml+xml", "html" => "text/html", ); $q = array(); if(headers_sent()) { $chosenFormat = Config::inst()->get('ContentNegotiator', 'default_format'); } else if(isset($_GET['forceFormat'])) { $chosenFormat = $_GET['forceFormat']; } else { // The W3C validator doesn't send an HTTP_ACCEPT header, but it can support xhtml. We put this special // case in here so that designers don't get worried that their templates are HTML4. if(isset($_SERVER['HTTP_USER_AGENT']) && substr($_SERVER['HTTP_USER_AGENT'], 0, 14) == 'W3C_Validator/') { $chosenFormat = "xhtml"; } else { foreach($mimes as $format => $mime) { $regExp = '/' . str_replace(array('+','/'),array('\+','\/'), $mime) . '(;q=(\d+\.\d+))?/i'; if (isset($_SERVER['HTTP_ACCEPT']) && preg_match($regExp, $_SERVER['HTTP_ACCEPT'], $matches)) { $preference = isset($matches[2]) ? $matches[2] : 1; if(!isset($q[$preference])) $q[$preference] = $format; } } if($q) { // Get the preferred format krsort($q); $chosenFormat = reset($q); } else { $chosenFormat = Config::inst()->get('ContentNegotiator', 'default_format'); } } } $negotiator = new ContentNegotiator(); $negotiator->$chosenFormat( $response ); } /** * Check user defined content type and use it, if it's empty use the strict application/xhtml+xml. * Replaces a few common tags and entities with their XHTML representations (
, ,   * , checked, selected). * * @param $response SS_HTTPResponse * @return string * @todo Search for more xhtml replacement */ public function xhtml(SS_HTTPResponse $response) { $content = $response->getBody(); $encoding = Config::inst()->get('ContentNegotiator', 'encoding'); $contentType = Config::inst()->get('ContentNegotiator', 'content_type'); if (empty($contentType)) { $response->addHeader("Content-Type", "application/xhtml+xml; charset=" . $encoding); } else { $response->addHeader("Content-Type", $contentType . "; charset=" . $encoding); } $response->addHeader("Vary" , "Accept"); // Fix base tag $content = preg_replace('//', '', $content); $content = str_replace(' ',' ', $content); $content = str_replace('
','
', $content); $content = str_replace('
','
', $content); $content = preg_replace('#(]*[^/>])>#i', '\\1/>', $content); $content = preg_replace('#(]*[^/>])>#i', '\\1/>', $content); $content = preg_replace('#(]*[^/>])>#i', '\\1/>', $content); $content = preg_replace("#(\]*[\s]+selected)(?!\s*\=)#si", "$1=\"selected\"$2", $content); $content = preg_replace("#(\]*[\s]+checked)(?!\s*\=)#si", "$1=\"checked\"$2", $content); $response->setBody($content); } /* * Check user defined content type and use it, if it's empty use the text/html. * If find a XML header replaces it and existing doctypes with HTML4.01 Strict. * Replaces self-closing tags like with unclosed solitary tags like . * Replaces all occurrences of "application/xhtml+xml" with "text/html" in the template. * Removes "xmlns" attributes and any Pragmas. */ public function html(SS_HTTPResponse $response) { $encoding = Config::inst()->get('ContentNegotiator', 'encoding'); $contentType = Config::inst()->get('ContentNegotiator', 'content_type'); if (empty($contentType)) { $response->addHeader("Content-Type", "text/html; charset=" . $encoding); } else { $response->addHeader("Content-Type", $contentType . "; charset=" . $encoding); } $response->addHeader("Vary", "Accept"); $content = $response->getBody(); $hasXMLHeader = (substr($content,0,5) == '<' . '?xml' ); // Fix base tag $content = preg_replace('//', '', $content); $content = preg_replace("#<\\?xml[^>]+\\?>\n?#", '', $content); $content = str_replace(array('/>','xml:lang','application/xhtml+xml'),array('>','lang','text/html'), $content); // Only replace the doctype in templates with the xml header if($hasXMLHeader) { $content = preg_replace('/]+>/', '', $content); } $content = preg_replace('/setBody($content); } }