Add an RSS conversion stylesheet for dilbert.com

[tweeper.git] / tweeper.php

diff --git a/tweeper.php b/tweeper.php
old mode 100755 (executable)
new mode 100644 (file)
index a275a64..3b8fb2d
--- a/tweeper.php
+++ b/tweeper.php
@@ -20,7 +20,13 @@
 
 date_default_timezone_set('UTC');
 
-function formatDate($timestamp)
+function str_to_gmdate($date)
+{
+  $timestamp = strtotime($date);
+  return epoch_to_gmdate($timestamp);
+}
+
+function epoch_to_gmdate($timestamp)
 {
   return gmdate('D, d M Y H:i:s', $timestamp) . ' GMT';
 }
@@ -86,6 +92,10 @@ function usage($argv)
 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;
+  }
   $src_url = $argv[1];
 } else {
   die(usage($argv));
@@ -93,16 +103,11 @@ if (isset($_GET['src_url'])) {
 
 $url = parse_url($src_url);
 if (FALSE === $url || empty($url["host"]))
-  die("Invalid url\n");
-
-$stylesheets = array(
-  "twitter.com" => "twitter_user_timeline2rss.xsl",
-);
-
-if (FALSE === array_key_exists($url["host"], $stylesheets))
-  die("Unsupported host\n");
+  die("Invalid url: $url\n");
 
-$stylesheet = $stylesheets[$url["host"]];
+$stylesheet = __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);