From 38a9993bd1bf0024639e19a9c25328a9d5d5954e Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Wed, 7 Oct 2015 01:54:56 +0200
Subject: [PATCH] luci-mod-admin-full: switch to POST action for reboot

Also rework the reboot tmeplate a little bit.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
---
 .../luasrc/controller/admin/system.lua        |  9 +--
 .../luasrc/view/admin_system/reboot.htm       | 68 ++++++++++++++-----
 2 files changed, 54 insertions(+), 23 deletions(-)

diff --git a/modules/luci-mod-admin-full/luasrc/controller/admin/system.lua b/modules/luci-mod-admin-full/luasrc/controller/admin/system.lua
index 1b38c6783..64af555e7 100644
--- a/modules/luci-mod-admin-full/luasrc/controller/admin/system.lua
+++ b/modules/luci-mod-admin-full/luasrc/controller/admin/system.lua
@@ -34,7 +34,8 @@ function index()
 	entry({"admin", "system", "flashops"}, call("action_flashops"), _("Backup / Flash Firmware"), 70)
 	entry({"admin", "system", "flashops", "backupfiles"}, form("admin_system/backupfiles"))
 
-	entry({"admin", "system", "reboot"}, call("action_reboot"), _("Reboot"), 90)
+	entry({"admin", "system", "reboot"}, template("admin_system/reboot"), _("Reboot"), 90)
+	entry({"admin", "system", "reboot", "call"}, post("action_reboot"))
 end
 
 function action_clock_status()
@@ -316,11 +317,7 @@ function action_passwd()
 end
 
 function action_reboot()
-	local reboot = luci.http.formvalue("reboot")
-	luci.template.render("admin_system/reboot", {reboot=reboot})
-	if reboot then
-		luci.sys.reboot()
-	end
+	luci.sys.reboot()
 end
 
 function fork_exec(command)
diff --git a/modules/luci-mod-admin-full/luasrc/view/admin_system/reboot.htm b/modules/luci-mod-admin-full/luasrc/view/admin_system/reboot.htm
index aa7441d13..c9551804d 100644
--- a/modules/luci-mod-admin-full/luasrc/view/admin_system/reboot.htm
+++ b/modules/luci-mod-admin-full/luasrc/view/admin_system/reboot.htm
@@ -1,25 +1,59 @@
 <%#
  Copyright 2008 Steven Barth <steven@midlink.org>
- Copyright 2008 Jo-Philipp Wich <jow@openwrt.org>
+ Copyright 2008-2015 Jo-Philipp Wich <jow@openwrt.org>
  Licensed to the public under the Apache License 2.0.
 -%>
 
 <%+header%>
-<h2 name="content"><%:System%></h2>
-<h3><%:Reboot%></h3>
+
+<h2 name="content"><%:Reboot%></h2>
+<br />
+
 <p><%:Reboots the operating system of your device%></p>
-<%-
-local c = require("luci.model.uci").cursor():changes()
-if c and next(c) then
--%>
-	<p class="warning"><%:Warning: There are unsaved changes that will be lost while rebooting!%></p> 
-<%-
-end
-if not reboot then 
--%>
-<p><a href="<%=controller%>/admin/system/reboot?reboot=1"><%:Perform reboot%></a></p>
-<%- else -%>
-<p><%:Please wait: Device rebooting...%></p>
-<script type="text/javascript">setTimeout("location='<%=controller%>/admin'", 60000)</script>
+
+<%- local c = require("luci.model.uci").cursor():changes(); if c and next(c) then -%>
+	<p class="alert-message warning"><%:Warning: There are unsaved changes that will get lost on reboot!%></p>
 <%- end -%>
-<%+footer%>
\ No newline at end of file
+
+<hr />
+
+<script type="text/javascript">//<![CDATA[
+	var tries = 0;
+
+	function ok() {
+		window.location = '<%=controller%>/admin';
+	}
+
+	function check() {
+		if (tries++ < 12)
+			window.setTimeout(ping, 5000);
+		else
+			alert('<%:Device unreachable%>');
+	}
+
+	function ping() {
+		var img = document.createElement('img');
+
+		img.onload = ok;
+		img.onerror = check;
+		img.src = '<%=resource%>/icons/loading.gif?' + Math.random();
+
+		document.getElementById('reboot-message').innerHTML = '<%:Waiting for device...%>';
+	}
+
+	function reboot(button) {
+		button.style.display = 'none';
+		document.getElementById('reboot-message').parentNode.style.display = '';
+
+		(new XHR()).post('<%=controller%>/admin/system/reboot/call', { token: '<%=token%>' }, check);
+	}
+//]]></script>
+
+<input class="cbi-button cbi-button-apply" type="button" value="<%:Perform reboot%>" onclick="reboot(this)" />
+
+<p class="alert-message" style="display:none">
+	<img src="<%=resource%>/icons/loading.gif" alt="<%:Loading%>" style="vertical-align:middle" />
+	<span id="reboot-message"><%:Device is rebooting...%></span>
+</p>
+
+<%+footer%>
-- 
2.25.1