X-Git-Url: https://git.ao2.it/tweeper.git/blobdiff_plain/8c743376a7e7eab3714e5aa4300e34fa3dd89415..b7350069c36900359b8f26c6e9794f614a40b20e:/tweeper.php diff --git a/tweeper.php b/tweeper.php index f1a4ba9..579aae1 100644 --- a/tweeper.php +++ b/tweeper.php @@ -65,6 +65,15 @@ class Tweeper { } /** + * Convert string to UpperCamelCase. + */ + public static function toUpperCamelCase($str, $delim = ' ') { + $str_upper = ucwords($str, $delim); + $str_camel_case = str_replace($delim, '', $str_upper); + return $str_camel_case; + } + + /** * Get the contents from a URL. */ private static function getUrlContents($url) { @@ -147,15 +156,13 @@ class Tweeper { $enc->setAttribute('length', $url_info['download_content_length']); $enc->setAttribute('type', $url_info['content_type']); - $dom->appendChild($enc); - - return $dom->saveXML($enc); + return $enc; } /** * Mimic the message from libxml.c::php_libxml_ctx_error_level() */ - private function logXmlError($error) { + private static function logXmlError($error) { $output = ""; switch ($error->level) { @@ -187,32 +194,9 @@ class Tweeper { } /** - * Load a stylesheet if the web site is supported. + * Convert json to XML. */ - private function loadStylesheet($host) { - $stylesheet = "file://" . __DIR__ . "/rss_converter_" . $host . ".xsl"; - if (FALSE === file_exists($stylesheet)) { - trigger_error("Conversion to RSS not supported for $host ($stylesheet not found)", E_USER_ERROR); - return NULL; - } - - $stylesheet_contents = $this->getUrlContents($stylesheet); - - $xslDoc = new DOMDocument(); - $xslDoc->loadXML($stylesheet_contents); - - $xsltProcessor = new XSLTProcessor(); - $xsltProcessor->registerPHPFunctions(); - $xsltProcessor->setParameter('', 'generate-enclosure', $this->generate_enclosure); - $xsltProcessor->importStylesheet($xslDoc); - - return $xsltProcessor; - } - - /** - * Convert json to xml. - */ - private function jsonToXml($json, $root_node_name) { + private static function jsonToXml($json, $root_node_name) { // Apparently the ObjectNormalizer used afterwards is not able to handle // the stdClass object created by json_decode() with the default setting // $assoc = false; so use $assoc = true. @@ -243,7 +227,7 @@ class Tweeper { /** * Convert the Instagram content to XML. */ - private function get_xml_instagram_com($html) { + private function getXmlInstagramCom($html) { // Extract the json data from the html code. $json_match_expr = '/window._sharedData = (.*);/'; $ret = preg_match($json_match_expr, $html, $matches); @@ -252,13 +236,13 @@ class Tweeper { return NULL; } - return $this->jsonToXml($matches[1], 'instagram'); + return Tweeper::jsonToXml($matches[1], 'instagram'); } /** * Make the Facebook HTML processable. */ - private function preprocess_html_facebook_com($html) { + private function preprocessHtmlFacebookCom($html) { $html = str_replace('', '', $html); return $html; @@ -273,8 +257,8 @@ class Tweeper { // Handle warnings and errors when loading invalid HTML. $xml_errors_value = libxml_use_internal_errors(TRUE); - // If there is a host-specific method to get the xml data, use it! - $get_xml_host_method = 'get_xml_' . str_replace(".", "_", $host); + // If there is a host-specific method to get the XML data, use it! + $get_xml_host_method = 'getXml' . Tweeper::toUpperCamelCase($host, '.'); if (method_exists($this, $get_xml_host_method)) { $xml_data = call_user_func_array(array($this, $get_xml_host_method), array($html)); $xmlDoc->loadXML($xml_data); @@ -284,7 +268,7 @@ class Tweeper { } foreach (libxml_get_errors() as $xml_error) { - $this->logXmlError($xml_error); + Tweeper::logXmlError($xml_error); } libxml_clear_errors(); libxml_use_internal_errors($xml_errors_value); @@ -293,6 +277,29 @@ class Tweeper { } /** + * Load a stylesheet if the web site is supported. + */ + private function loadStylesheet($host) { + $stylesheet = "file://" . __DIR__ . "/rss_converter_" . $host . ".xsl"; + if (FALSE === file_exists($stylesheet)) { + trigger_error("Conversion to RSS not supported for $host ($stylesheet not found)", E_USER_ERROR); + return NULL; + } + + $stylesheet_contents = Tweeper::getUrlContents($stylesheet); + + $xslDoc = new DOMDocument(); + $xslDoc->loadXML($stylesheet_contents); + + $xsltProcessor = new XSLTProcessor(); + $xsltProcessor->registerPHPFunctions(); + $xsltProcessor->setParameter('', 'generate-enclosure', $this->generate_enclosure); + $xsltProcessor->importStylesheet($xslDoc); + + return $xsltProcessor; + } + + /** * Convert the site content to RSS. */ public function tweep($src_url) { @@ -310,12 +317,12 @@ class Tweeper { return NULL; } - $html = $this->getUrlContents($src_url); + $html = Tweeper::getUrlContents($src_url); if (FALSE === $html) { return NULL; } - $preprocess_html_host_method = 'preprocess_html_' . str_replace(".", "_", $host); + $preprocess_html_host_method = 'preprocessHtml' . Tweeper::toUpperCamelCase($host, '.'); if (method_exists($this, $preprocess_html_host_method)) { $html = call_user_func_array(array($this, $preprocess_html_host_method), array($html)); }