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--- built_in:webserver [2015/03/21 17:30]
octazid [Methods] sorted
+++ built_in:webserver [2016/07/16 01:37] (current)
@@ Line 2: / Line 2: @@
 ===== Methods =====
-^Method ^Description ^
+^ Method                                 ^ Description                        ^
-|WebServer.AddServlet( p1,p2 ) | |
+| WebServer.AddServlet( path,callback )  |                                    |
-|WebServer.SendText( txt ) | |
+| Webserver.GetWebSockClients()          |                                    |
-|WebServer.SetFolder( folder ) | |
+| WebServer.SendText( txt, ip )          |                                    |
-|WebServer.SetResponse( p1 ) | |
+| WebServer.SetFolder( folder )          |                                    |
-|WebServer.Start() | |
+| WebServer.SetOnReceive( callback)      |                                    |
+| WebServer.SetResponse( text )          |                                    |
+| WebServer.Start()                      |                                    |
+| WebServer.AddRedirect(url, target)     | Wildcards (*) can be used for url  |
+=====Options=====
+^ Name ^ Description ^
+| ListDir    | show files in folder          |
+| Upload     | allow uploads?      |
+| NoWelcome  | ignore index.html  |
+| Reflect    | reflect web socket messages back to all clients |
+=====Example=====
+//(Example taken from the DroidScript sample section)//
+<code javascript>
+//Called when application is started.
+function OnStart()
+{
+	//Check wifi is enabled.
+	var ip = app.GetIPAddress();
+	if( ip == "0.0.0.0" ) {
+		app.ShowPopup( "Please Enable Wi-Fi" );
+		app.Exit();
+	}
+	//Create a layout with objects vertically centered.
+	lay = app.CreateLayout( "linear", "VCenter,FillXY" );
+	//Create a text label and add it to layout.
+	var s = "Type the following address into your" +
+			" browser\n\n" + ip +":8080";
+	txt = app.CreateText( s, 0.8, 0.5, "MultiLine" );
+	txt.SetTextSize( 22 );
+	lay.AddChild( txt );
+	//Add layout to app.
+	app.AddLayout( lay );
+	//Create and run web server.
+	serv = app.CreateWebServer( 8080, "Upload,ListDir" );
+	serv.SetFolder( "/sdcard/DroidScript" );
+	serv.AddServlet( "/message", OnServlet );
+	serv.Start();
+}
+//Handle servlet requests.
+function OnServlet( request, info )
+{
+	serv.SetResponse( "Got it!" );
+	app.ShowPopup(  info.remoteAddress + " says: " + request.msg );
+}
+</code>
+----
+=====WebSocket Sample=====
+running on DroidScript V 1.23b and higher
+//(Sample posted by Dave Smart in the DroidScript Beta Forum)//
+Create the following two files in one folder and call your folder "Web Sockets"
+<code html index.html>
+<html>
+<head>
+<title>WebSocket Demo</title>
+<script>
+var count = 0;
+//Connect to server via web sockets.
+function Connect()
+{
+	//Check web sockets are supported.
+	if (!window.WebSocket)
+	{
+		alert("WebSocket not supported by this browser");
+		return;
+	}
+	//Open web socket to phone.
+	ws = new WebSocket( "ws://"+window.location.host );
+	ws.onopen = ws_onopen;
+	ws.onmessage = ws_onmessage;
+	ws.onclose = ws_onclose;
+	ws.onerror = ws_onerror;
+}
+//Send a message to the server.
+function Send()
+{
+	ws.send( "Hello " + count++ );
+}
+//Handle socket open.
+function ws_onopen()
+{
+	id_info.innerHTML = "Socket Open";
+}
+//Handle messages from phone.
+function ws_onmessage( msg )
+{
+	id_info.innerHTML = msg.data;
+}
+//Other websocket callbacks.
+function ws_onclose() { id_info.innerHTML = "Socket Closed"; }
+function ws_onerror(e) { id_info.innerHTML = "Socket Error: " + e.data; }
+</script>
+</head>
+<body>
+ <h2>DroidScript WebSocket Demo</h2>
+ <div id="id_info">Ready</div>
+ <br><br>
+ <button onclick="Connect()">Connect</button>
+ <button onclick="Send()">Send Message</button>
+</body>
+</html>
+</code>
+<code javascript Web Sockets.js>
+//Init variables.
+var count = 0;
+//Called when application is started.
+function OnStart()
+{
+	//Check wifi is enabled.
+	ip = app.GetIPAddress();
+	if( ip == "0.0.0.0" ) {
+		app.ShowPopup( "Please Enable Wi-Fi" );
+		app.Exit();
+	}
+	//Prevent wifi from powering down.
+    app.PreventWifiSleep();
+	//Create a layout with objects vertically centered.
+	lay = app.CreateLayout( "linear", "VCenter,FillXY" );
+	//Create a text label and add it to layout.
+	var s = "Type the following address into your" +
+			" browser(s)\n\n" + ip +":8080";
+	txt = app.CreateText( s, 0.8, 0.3, "AutoScale,MultiLine" );
+	txt.SetTextSize( 22 );
+	lay.AddChild( txt );
+	//Create a text label and add it to layout.
+	txtMsg = app.CreateText( "", 0.8, 0.3, "AutoScale,MultiLine" );
+	txtMsg.SetTextSize( 22 );
+	lay.AddChild( txtMsg );
+	//Create a 'Send Message' button.
+	btn = app.CreateButton( "Send Message", 0.4, 0.1 );
+	btn.SetMargins( 0, 0.05, 0, 0 );
+	btn.SetOnTouch( SendMessage );
+	lay.AddChild( btn );
+	//Add layout to app.
+	app.AddLayout( lay );
+	//Create and run web server on port 8080.
+    serv = app.CreateWebServer( 8080 );
+    serv.SetFolder( "/sdcard/DroidScript/Web Sockets" );
+    serv.SetOnReceive( serv_OnReceive );
+    serv.Start();
+	//Start timer to show WebSock connections.
+	setInterval( ShowConnections, 3000 );
+}
+//Show who is connected.
+function ShowConnections()
+{
+	var clients = serv.GetWebSockClients();
+	if( clients.length > 0 )
+	{
+    	//Make a list of clients.
+    	var list = "";
+    	for( var i=0; i<clients.length; i++ )
+    	    list += clients[i].remoteAddress + "\n";
+    	//Show client list.
+    	txt.SetText( list );
+	}
+}
+//Send a message to all connected socket clients.
+function SendMessage()
+{
+    //Note: You can send to a specific client by passing
+    //the IP address as the second parameter.
+	serv.SendText( "Hello " + count++ )
+}
+//Called when messages arrive from websocket clients.
+function serv_OnReceive( msg, ip )
+{
+    txtMsg.SetText( ip + ": " + msg );
+}
+</code>

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