From c2e98b94a1ffa6a46090a604e1ee59b6b312aae9 Mon Sep 17 00:00:00 2001
From: Steve Beaver <sbeaver@netgate.com>
Date: Thu, 10 Aug 2017 13:56:19 -0400
Subject: Revised Netgate Services and Support widget to use AJAX when
 refreshing the data

---
 .../netgate_services_and_support.widget.php        | 120 +++++++++++++++------
 1 file changed, 85 insertions(+), 35 deletions(-)

(limited to 'src')

diff --git a/src/usr/local/www/widgets/widgets/netgate_services_and_support.widget.php b/src/usr/local/www/widgets/widgets/netgate_services_and_support.widget.php
index 4a045a1..f1ebf7e 100644
--- a/src/usr/local/www/widgets/widgets/netgate_services_and_support.widget.php
+++ b/src/usr/local/www/widgets/widgets/netgate_services_and_support.widget.php
@@ -20,26 +20,52 @@
  */
 
 /*
-	This widget transmits the device ID to Netgate's REST API and retrieves the support	information.
+	This widget transmits the Netgate Device ID to Netgate's REST API, and retrieves the support information.
 	The connection is made using HTTPS/TLS. No other data is transmitted. If the widget
 	is not enabled, then no transmission is made
+
+	If the file ontaining the support data exists on the file system and is less than 24 hours old
+	the file contents are displayed immediately. If not, an AJAX call is made to retrieve fresh information
 */
 
+require_once("guiconfig.inc");
+
 $nocsrf = true;
 $supportfile = "/var/db/support.json";
 $idfile = "/var/db/uniqueid";
 $FQDN = "https://ews.netgate.com/support";
 $refreshinterval = (24 * 3600);	// 24 hours
 
-// Write a dummy support file containg an error message
-function nosupportdata() {
-	global $supportfile;
 
-	file_put_contents($supportfile, sprintf(gettext("%sSupport information could not be retrieved%s"),
-		"{\"summary\":\"<div class=\\\"alert alert-danger\\\">", "</div>\",\"htmltext\":\"\"}"));
+if ($_REQUEST['ajax']) {
+
+	// Retrieve the support data from Netgate.com if the supprt data file does not exist,
+	// or if it is more than a day old
+	if (!file_exists($supportfile) || ( time()-filemtime($supportfile) > $refreshinterval)) {
+		if (file_exists($supportfile)) {
+			unlink($supportfile);
+		}
+
+		updateSupport();
+	}
+
+	if (file_exists($supportfile)) {
+		print(file_get_contents($supportfile));
+	}
+
+	exit;
+}
+
+// If the widget is called with act=refresh, delete the JSON file and reload the page, thereby forcing the
+// widget to get a fresh copy of the support information
+if ($_REQUEST['act'] == "refresh") {
+
+    if (file_exists($supportfile)) {
+		unlink($supportfile);
+    }
 
-	// Make the file {refreshinterval} old so that the widget tries again on the next page load
-	touch($supportfile, (time() - $refreshinterval));
+    header("Location: /");
+	exit;
 }
 
 // Poll the Netgate server to obtain the JSON/HTML formatted support information
@@ -47,8 +73,6 @@ function nosupportdata() {
 function updateSupport() {
 	global $g, $supportfile, $idfile, $FQDN;
 
-	$success = false;
-
 	if (file_exists($idfile)) {
 		if (function_exists('curl_version')) {
 			$post = ['uid' => file_get_contents($idfile), 'language' => '0'];
@@ -62,47 +86,34 @@ function updateSupport() {
 			curl_setopt($ch, CURLOPT_URL, $url);
 			curl_setopt($ch, CURLOPT_POST, true);
 			curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post));
+			curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,4);
 			$response = curl_exec($ch);
 			$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 			curl_close($ch);
 
 			if ($status == 200) {
 				file_put_contents($supportfile, $response);
-				$success = true;
 			}
 		}
 	}
-
-	if (!$success) {
-		nosupportdata();
-	}
 }
 
-// If the widget is called with act=refresh, delete the JSON file and reload the page, thereby forcing the
-// widget to get a fresh copy of the support information
-if ($_REQUEST['act'] == "refresh") {
-    unlink($supportfile);
-    header("Location: /");
-	exit;
-}
 
-// Retrieve the support data from Netgate.com if the supprt data file does not exist,
-// or if it is more than a day old
-if (!file_exists($supportfile) || ( time()-filemtime($supportfile) > $refreshinterval)) {
-	updateSupport();
-}
-
-$str = file_get_contents($supportfile);
-$json = json_decode($str, true);
+$doajax = "yes";
 
 print("<div>");
-print($json['summary']);
 
-if (strlen($json['htmltext']) > 0) {
-	print('<div class="panel-body" style="padding-left:15px; padding-right:15px;">');
-	print('<hr style="margin-top:0px">');
+if (file_exists($supportfile) && ( time()-filemtime($supportfile) < $refreshinterval)) {
+	// Print the support data from the file
+	$str = file_get_contents($supportfile);
+	$json = json_decode($str, true);
+	print($json['summary']);
 	print($json['htmltext']);
-	print('</div>');
+	$doajax = "no";
+} else {
+	//Print empty <div>s and request the data by AJAX
+	print(sprintf(gettext("%sRetrieving support information %s %s"),
+		"<div id=\"summary\" class=\"alert alert-warning\">", "<i class=\"fa fa-cog fa-spin\"></i>", "</div><div id=\"htmltxt\"></div>"));
 }
 
 // Print a low-key refresh link
@@ -111,3 +122,42 @@ print('<div style="text-align:right;padding-right:15px;"><a href="/widgets/widge
 print("</div>");
 
 ?>
+
+<script type="text/javascript">
+//<![CDATA[
+	events.push(function(){
+		function fetch_spt_data() {
+
+			$.ajax({
+				type: 'POST',
+				url: "/widgets/widgets/netgate_services_and_support.widget.php",
+				data: {
+					ajax: "ajax"
+				},
+
+				success: function(data){
+					if (data.length > 0) {
+						var obj = JSON.parse(data);
+
+						$('#summary').removeClass("alert");
+						$('#summary').removeClass("alert-warning");
+						$('#summary').html(obj.summary);
+						$('#htmltxt').html(obj.htmltext);
+					}
+				},
+
+				error: function(e){
+			//		alert("Error: " + e);
+
+				}
+			});
+		}
+
+		if ("<?=$doajax?>" === "yes") {
+			fetch_spt_data();
+		}
+	});
+
+
+//]]>
+</script>
-- 
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