date_default_timezone_set('UTC');
-function str_to_gmdate($date)
-{
- $timestamp = strtotime($date);
- return epoch_to_gmdate($timestamp);
-}
-
-function epoch_to_gmdate($timestamp)
-{
- return gmdate('D, d M Y H:i:s', $timestamp) . ' GMT';
-}
-
-function get_url_info($url)
-{
- $ch = curl_init($url);
- curl_setopt_array($ch, array(
- CURLOPT_HEADER => TRUE, // get the header
- CURLOPT_NOBODY => TRUE, // don't donwload body
- CURLOPT_FOLLOWLOCATION => TRUE, // the magic sauce
- CURLOPT_RETURNTRANSFER => TRUE,
- CURLOPT_SSL_VERIFYHOST => FALSE, // suppress certain SSL errors
- CURLOPT_SSL_VERIFYPEER => FALSE,
- ));
- curl_exec($ch);
- $url_info = curl_getinfo($ch);;
- curl_close($ch);
-
- return $url_info;
-}
-
-function generate_enclosure($url) {
- $url_info = get_url_info($url);
-
- $dom = new DomDocument();
- $enc = $dom->createElement('enclosure');
- $enc->setAttribute( 'url', $url_info['url']);
- $enc->setAttribute( 'length', $url_info['download_content_length']);
- $enc->setAttribute( 'type', $url_info['content_type']);
-
- $dom->appendChild($enc);
-
- return $dom->saveXML($enc);
-}
-
-
class Tweeper {
- private $USER_AGENT = "Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20130405 Firefox/22.0";
+ private static $USER_AGENT = "Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20130405 Firefox/22.0";
- public function __construct($stylesheet) {
+ public function __construct($stylesheet, $generate_enclosure = FALSE) {
$stylesheet_contents = $this->get_contents($stylesheet);
$xslDoc = new DOMDocument();
$this->xsltProcessor = new XSLTProcessor();
$this->xsltProcessor->registerPHPFunctions();
+ $this->xsltProcessor->setParameter('', 'generateEnclosure', $generate_enclosure);
$this->xsltProcessor->importStylesheet($xslDoc);
}
- private function get_contents($uri) {
- # https://www.wjsams.com/c/docs/Wiki/Php-HowToSetUserAgentOnFileGetContents
- $opts = array(
- 'http' => array(
- 'method' => "GET",
- 'header' => join(array(
- "Accept-language: en\r\n",
- "User-Agent: {$this->USER_AGENT}\r\n"
- ))
- )
- );
+ public static function epoch_to_gmdate($timestamp)
+ {
+ return gmdate('D, d M Y H:i:s', $timestamp) . ' GMT';
+ }
+
+ public static function str_to_gmdate($date)
+ {
+ $timestamp = strtotime($date);
+ return Tweeper::epoch_to_gmdate($timestamp);
+ }
+
+ private static function get_contents($url)
+ {
+ $ch = curl_init($url);
+ curl_setopt_array($ch, array(
+ CURLOPT_HEADER => FALSE,
+ CURLOPT_RETURNTRANSFER => TRUE,
+ CURLOPT_SSL_VERIFYHOST => FALSE,
+ CURLOPT_SSL_VERIFYPEER => FALSE,
+ CURLOPT_HTTPHEADER => array('Accept-language: en'),
+ CURLOPT_USERAGENT => Tweeper::$USER_AGENT,
+ ));
+ $contents = curl_exec($ch);
+ curl_close($ch);
- $context = stream_context_create($opts);
- $contents = file_get_contents($uri, false, $context);
return $contents;
}
+ private static function get_info($url)
+ {
+ $ch = curl_init($url);
+ curl_setopt_array($ch, array(
+ CURLOPT_HEADER => TRUE,
+ CURLOPT_NOBODY => TRUE,
+ CURLOPT_FOLLOWLOCATION => TRUE, // follow http redirects to get the real URL
+ CURLOPT_RETURNTRANSFER => TRUE,
+ CURLOPT_SSL_VERIFYHOST => FALSE,
+ CURLOPT_SSL_VERIFYPEER => FALSE,
+ CURLOPT_USERAGENT => Tweeper::$USER_AGENT,
+ ));
+ curl_exec($ch);
+ $url_info = curl_getinfo($ch);
+ curl_close($ch);
+
+ return $url_info;
+ }
+
+ public static function generate_enclosure($url)
+ {
+ $supported_content_types = array(
+ "application/ogg",
+ "audio/aac",
+ "audio/mp4",
+ "audio/mpeg",
+ "audio/vorbis",
+ "audio/wav",
+ "audio/webm",
+ "audio/x-midi",
+ "image/gif",
+ "image/jpeg",
+ "video/avi",
+ "video/mp4",
+ "video/mpeg",
+ "video/ogg",
+ );
+
+ $url_info = Tweeper::get_info($url);
+
+ $supported = in_array($url_info['content_type'], $supported_content_types);
+ if (!$supported) {
+ error_log("Unsupported enclosure content type \"" . $url_info['content_type'] . "\" for URL: " . $url_info['url']);
+ return '';
+ }
+
+ $dom = new DomDocument();
+ $enc = $dom->createElement('enclosure');
+ $enc->setAttribute('url', $url_info['url']);
+ $enc->setAttribute('length', $url_info['download_content_length']);
+ $enc->setAttribute('type', $url_info['content_type']);
+
+ $dom->appendChild($enc);
+
+ return $dom->saveXML($enc);
+ }
+
public function tweep($uri) {
- $html = $this->get_contents($uri);
+ $html = Tweeper::get_contents($uri);
$xmlDoc = new DOMDocument();
$xmlDoc->loadHTML($html);
function usage($argv)
{
if (php_sapi_name() != 'cli')
- $usage = htmlentities("{$_SERVER['SCRIPT_NAME']}?src_url=<src_url>");
+ $usage = htmlentities("{$_SERVER['SCRIPT_NAME']}?src_url=<src_url>&generate_enclosure=<0|1>");
else
- $usage = "{$argv[0]} <src_url>\n";
+ $usage = "{$argv[0]} [-e|-h|--help] <src_url>\n";
return "usage: $usage";
}
-if (isset($_GET['src_url'])) {
- $src_url = $_GET['src_url'];
-} else if (isset($argv[1])) {
- if ($argv[1] == "-h" || $argv[1] == "--help") {
- echo usage($argv);
- return 0;
+function parse_options_cli($argv, $argc)
+{
+ $options = array(
+ 'generate_enclosure' => FALSE
+ );
+
+ if ($argc < 2)
+ return $options;
+
+ $cli_options = getopt("eh", array("help"));
+ foreach ($cli_options as $opt => $val) {
+ switch ($opt) {
+ case 'e':
+ $options['generate_enclosure'] = TRUE;
+ break;
+ case 'h':
+ case 'help':
+ echo usage($argv);
+ exit(0);
+ default:
+ die(usage($argv));
+ }
}
- $src_url = $argv[1];
-} else {
- die(usage($argv));
+
+ $options['src_url'] = $argv[count($cli_options) + 1];
+
+ return $options;
}
-$url = parse_url($src_url);
+function parse_options_query_string()
+{
+ $options = array(
+ 'generate_enclosure' => FALSE
+ );
+
+ if (isset($_GET['src_url']))
+ $options['src_url'] = $_GET['src_url'];
+
+ if (isset($_GET['generate_enclosure']))
+ $options['generate_enclosure'] = $_GET['generate_enclosure'] == 1;
+
+ return $options;
+}
+
+
+if (php_sapi_name() != 'cli')
+ $options = parse_options_query_string();
+else
+ $options = parse_options_cli($argv, $argc);
+
+if (!isset($options['src_url']))
+ die(usage($argv));
+
+$url = parse_url($options['src_url']);
if (FALSE === $url || empty($url["host"]))
- die("Invalid url: $src_url\n");
+ die("Invalid url: ${options['src_url']}\n");
-$stylesheet = __DIR__ . "/rss_converter_" . $url["host"] . ".xsl";
+$stylesheet = "file://" . __DIR__ . "/rss_converter_" . $url["host"] . ".xsl";
if (FALSE === file_exists($stylesheet))
die("Conversion to RSS not supported: {$url["host"]}\n");
-$tweeper = new Tweeper($stylesheet);
-echo $tweeper->tweep($src_url);
+$tweeper = new Tweeper($stylesheet, $options['generate_enclosure']);
+echo $tweeper->tweep($options['src_url']);
projects / tweeper.git / blobdiff