From ff242e6e618ee53ebcd7251f9c26ff721c7a03b4 Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Sat, 12 Mar 2016 15:33:23 +0100
Subject: Initial import.

---
 maj/main.js | 200 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 200 insertions(+)
 create mode 100644 maj/main.js

(limited to 'maj/main.js')

diff --git a/maj/main.js b/maj/main.js
new file mode 100644
index 0000000..a880b92
--- /dev/null
+++ b/maj/main.js
@@ -0,0 +1,200 @@
+/**
+ *  Copyright 2016 Ludovic Pouzenc <ludovic@pouzenc.fr>
+ * 
+ *  CHD OpenWRT is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  CHD OpenWRT is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with CHD OpenWRT.  If not, see <http://www.gnu.org/licenses/>.
+**/
+
+/*
+document.onreadystatechange = function () {
+	console.log("document.onreadystatechange");
+};
+
+document.onunload = function () {
+	console.log("document.onunload");
+	for(var i=0; i<1000000000; i++) {}
+};*/
+
+document.addEventListener("DOMContentLoaded", function() {
+	console.log("DOMContentLoaded");
+
+	// HTML5 form validation
+	var supports_input_validity = function() { var i = document.createElement("input"); return "setCustomValidity" in i; }
+
+	if(supports_input_validity()) {
+		var pwd1Input = document.getElementById("field_pwd1");
+		var pwd2Input = document.getElementById("field_pwd2");
+		var key1Input = document.getElementById("field_key1");
+		var key2Input = document.getElementById("field_key2");
+
+		pwd2Input.addEventListener("keyup", function() {
+			this.setCustomValidity(
+				(this.value!=pwd1Input.value)?pwd2Input.title:""
+			)}, false);
+
+		key2Input.addEventListener("keyup", function() {
+			this.setCustomValidity(
+				(this.value!=key1Input.value)?key2Input.title:""
+			)}, false);
+	}
+
+	/* Range slider value update
+	var txpower = document.getElementById("field_txpower");
+	var txpowerText = document.getElementById("field_txpower_text");
+	txpower.addEventListener("change", function(e) {
+			txpowerText.value=txpower.value + " dB";
+		}, true);
+	*/
+	var btn_gen = document.getElementById("btn_gen");
+	btn_gen.value="Générer le fichier de mise à jour";
+
+	// Additionnal form validation (on submit)
+	var checkForm = function(e) {
+
+		if (this.pwd1.value != this.pwd2.value) {
+			this.pwd1.focus();
+			e.preventDefault();
+			return;
+		}
+		if (this.key1.value != this.key2.value) {
+			this.key1.focus();
+			e.preventDefault();
+			return;
+		}
+		// Safari needs this one too
+		if (!e.target.checkValidity()) {
+			e.preventDefault();
+			return;
+		}
+		// Form will pass, disable the form button to prevent multiple clicks
+		var btn_gen = document.getElementById("btn_gen");
+		btn_gen.value="Patientez puis sauvez le fichier";
+		btn_gen.disabled=true;
+		btn_gen.style.color="gray";
+	};
+	var form_main = document.getElementById("form_main");
+	form_main.addEventListener("submit", checkForm, true);
+
+	// Guess of current LAN gateway
+	var field_ip4lan = document.getElementById("field_ip4lan");
+	getIPs(function(ip){
+		console.log(ip);
+		var res = ip.match(/^192\.168\.\d+/);
+		if ( res ) {
+			// Dumb guess of gateway IP
+			field_ip4lan.value = res + ".1";
+		}
+	});
+
+}, false);
+
+
+window.addEventListener('unload', function(event) {
+	console.log('unload');
+
+	// Revert submit button to inital state if history.go(-1) was used
+	var btn_gen = document.getElementById("btn_gen");
+	btn_gen.value="Générer le fichier de mise à jour";
+	btn_gen.disabled=false;
+	btn_gen.style.color="black";
+
+});
+
+
+// LAN IPs detection
+function getIPs(callback){
+	var ip_dups = {};
+
+	//compatibility for firefox and chrome
+	var RTCPeerConnection = window.RTCPeerConnection
+		|| window.mozRTCPeerConnection
+		|| window.webkitRTCPeerConnection;
+	var useWebKit = !!window.webkitRTCPeerConnection;
+
+	if(!RTCPeerConnection){
+		return; // The following code pops JS errors on Safari
+	}
+
+	//bypass naive webrtc blocking using an iframe
+	if(!RTCPeerConnection){
+		//NOTE: you need to have an iframe in the page right above the script tag
+		//
+		//<iframe id="iframe" sandbox="allow-same-origin" style="display: none"></iframe>
+		//<script>...getIPs called in here...
+		//
+		var win = iframe.contentWindow;
+		RTCPeerConnection = win.RTCPeerConnection
+			|| win.mozRTCPeerConnection
+			|| win.webkitRTCPeerConnection;
+		useWebKit = !!win.webkitRTCPeerConnection;
+	}
+
+	//minimal requirements for data connection
+	var mediaConstraints = {
+optional: [{RtpDataChannels: true}]
+	};
+
+	//firefox already has a default stun server in about:config
+	//    media.peerconnection.default_iceservers =
+	//    [{"url": "stun:stun.services.mozilla.com"}]
+	var servers = undefined;
+
+	//add same stun server for chrome
+	if(useWebKit)
+		servers = {iceServers: [{urls: "stun:stun.services.mozilla.com"}]};
+
+	//construct a new RTCPeerConnection
+	var pc = new RTCPeerConnection(servers, mediaConstraints);
+
+	function handleCandidate(candidate){
+		//match just the IP address
+		var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3})/
+			var ip_addr = ip_regex.exec(candidate)[1];
+
+		//remove duplicates
+		if(ip_dups[ip_addr] === undefined)
+			callback(ip_addr);
+
+		ip_dups[ip_addr] = true;
+	}
+
+	//listen for candidate events
+	pc.onicecandidate = function(ice){
+
+		//skip non-candidate events
+		if(ice.candidate)
+			handleCandidate(ice.candidate.candidate);
+	};
+
+	//create a bogus data channel
+	pc.createDataChannel("");
+
+	//create an offer sdp
+	pc.createOffer(function(result){
+
+			//trigger the stun server request
+			pc.setLocalDescription(result, function(){}, function(){});
+
+			}, function(){});
+
+	//wait for a while to let everything done
+	setTimeout(function(){
+			//read candidate info from local description
+			var lines = pc.localDescription.sdp.split('\n');
+
+			lines.forEach(function(line){
+				if(line.indexOf('a=candidate:') === 0)
+				handleCandidate(line);
+				});
+			}, 1000);
+}
-- 
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