1 files changed, 60 insertions, 0 deletions
diff --git a/mod/update_channel.php b/mod/update_channel.php
new file mode 100644
index 000000000..08b7bd5d7
--- /dev/null
+++ b/mod/update_channel.php
@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * Module: update_profile
+ * Purpose: AJAX synchronisation of profile page
+ *
+ */
+
+
+require_once('mod/channel.php');
+
+function update_channel_content(&$a) {
+
+	$profile_uid = intval($_GET['p']);
+
+	header("Content-type: text/html");
+	echo "<!DOCTYPE html><html><body>\r\n";
+
+	/**
+	 * We can remove this hack once Internet Explorer recognises HTML5 natively
+	 */
+
+	echo (($_GET['msie'] == 1) ? '<div>' : '<section>');
+
+	/**
+	 *
+	 * Grab the page inner contents by calling the content function from the profile module directly, 
+	 * but move any image src attributes to another attribute name. This is because 
+	 * some browsers will prefetch all the images for the page even if we don't need them.
+	 * The only ones we need to fetch are those for new page additions, which we'll discover
+	 * on the client side and then swap the image back.
+	 *
+	 */
+
+	$text = channel_content($a,$profile_uid);
+
+	$pattern = "/<img([^>]*) src=\"([^\"]*)\"/";
+	$replace = "<img\${1} dst=\"\${2}\"";
+	$text = preg_replace($pattern, $replace, $text);
+
+	$replace = '<br />' . t('[Embedded content - reload page to view]') . '<br />';
+	$pattern = "/<\s*audio[^>]*>(.*?)<\s*\/\s*audio>/i";
+	$text = preg_replace($pattern, $replace, $text);
+	$pattern = "/<\s*video[^>]*>(.*?)<\s*\/\s*video>/i";
+	$text = preg_replace($pattern, $replace, $text);
+	$pattern = "/<\s*embed[^>]*>(.*?)<\s*\/\s*embed>/i";
+	$text = preg_replace($pattern, $replace, $text);
+    $pattern = "/<\s*iframe[^>]*>(.*?)<\s*\/\s*iframe>/i";
+    $text = preg_replace($pattern, $replace, $text);
+
+	/**
+	 * reportedly some versions of MSIE don't handle tabs in XMLHttpRequest documents very well
+	 */
+
+	echo str_replace("\t",'       ',$text);
+	echo (($_GET['msie'] == 1) ? '</div>' : '</section>');
+	echo "</body></html>\r\n";
+	killme();
+
+}
+\ No newline at end of file