Started Syteminvoker

9 files changed, 253 insertions, 23 deletions

diff --git a/apps/mmi-browser.cpp b/apps/mmi-browser.cpp
index 8d3a12f..5127d7b 100644
--- a/apps/mmi-browser.cpp
+++ b/apps/mmi-browser.cpp
@@ -85,6 +85,8 @@ int main(int argc, char** argv) {
 	Interpreter* interpreter = Interpreter::fromURI(argv[optind]);
 	if (interpreter) {
 		interpreter->setCmdLineOptions(argc, argv);
+//		interpreter->setCapabilities(Interpreter::CAN_NOTHING);
+//		interpreter->setCapabilities(Interpreter::CAN_BASIC_HTTP | Interpreter::CAN_GENERIC_HTTP);
 		interpreter->start();
 		while(interpreter->runOnMainThread(25));
 		//		interpreter->interpret();
diff --git a/apps/samples/miles-connect.html b/apps/samples/miles/miles-connect.html
index ae5f77e..ae5f77e 100644
--- a/apps/samples/miles-connect.html
+++ b/apps/samples/miles/miles-connect.html
diff --git a/apps/samples/miles-disconnect.html b/apps/samples/miles/miles-disconnect.html
index 30f5b39..30f5b39 100644
--- a/apps/samples/miles-disconnect.html
+++ b/apps/samples/miles/miles-disconnect.html
diff --git a/apps/samples/miles.scxml b/apps/samples/miles/miles.scxml
index 4eef0eb..524729f 100644
--- a/apps/samples/miles.scxml
+++ b/apps/samples/miles/miles.scxml
@@ -8,8 +8,18 @@
 				</script>
 			</finalize>
 		</invoke>
-		
+
 		<state id="idle">
+			<!-- XHR CORS preflight response -->
+			<transition event="http.options" target="idle">
+				<script>dump(_event);</script>
+				<response status="200" requestexpr="_event.origin">
+					<header name="Access-Control-Allow-Origin" value="*" />
+					<header name="Access-Control-Allow-Methods" value="GET, OPTIONS" />
+					<header name="Access-Control-Allow-Headers" value="X-Requested-With" />
+				</response>
+			</transition>
+			
 			<transition event="http.post" target="idle">
 				<script>dump(_event);</script>
 				<if cond="_event.data.pathComponent[1] === 'session'">
@@ -30,11 +40,11 @@
 							<param name="problemName" expr="_event.data.content.problemName" />
 						</send>
 						<response status="200" requestexpr="_event.origin" />
-					
+
 					</elseif>
 					<else>
 						<response status="404" requestexpr="_event.origin" />
-					
+
 					</else>
 				</if>
 			</transition>
diff --git a/apps/samples/server-push/server-push.scxml b/apps/samples/server-push/server-push.scxml
new file mode 100644
index 0000000..2574149
--- /dev/null
+++ b/apps/samples/server-push/server-push.scxml
@@ -0,0 +1,84 @@
+<!-- 
+	Example for server-push with long-polling XMLHttpRequests.
+	Start in mmi-browser and connect http-browser via:
+	http://localhost:8080/push
+-->
+
+<scxml name="push" datamodel="ecmascript">
+	<script src="http://uscxml.tk.informatik.tu-darmstadt.de/scripts/dump.js" />
+	<script src="http://uscxml.tk.informatik.tu-darmstadt.de/scripts/string.endsWith.js" />
+
+	<state id="main">
+		<!-- We will only answer http requests when the heartbeat is emitted -->
+		<invoke type="heartbeat" id="heartbeat">
+			<param name="interval" expr="'1s'" />
+		</invoke>
+		<state id="idle">
+			<!-- XHR CORS preflight response -->
+			<transition event="http.options" target="idle">
+				<script>dump(_event);</script>
+				<response status="200" requestexpr="_event.origin">
+					<header name="Access-Control-Allow-Origin" value="*" />
+					<header name="Access-Control-Allow-Methods" value="POST, GET, OPTIONS" />
+					<header name="Access-Control-Allow-Headers" value="X-Requested-With, Content-Type" />
+				</response>
+			</transition>
+			
+			<transition event="http.post" target="idle">
+				<script>dump(_event);</script>
+				<if cond="_event.name.endsWith('postponed')">
+					<!-- This is an event we postponed before the heartbeat, respond -->
+					<response requestexpr="_event.origin">
+						<content>This is awesome!</content>
+					</response>
+					<else>
+						<!-- Postpone until the heartbeat is emitted and send all events again -->
+						<postpone until="_event.name == 'heartbeat.1s'" chaining="true" />
+					</else>
+				</if>
+			</transition>
+			
+			<transition event="http.get">
+				<response requestexpr="_event.origin">
+					<content>
+<![CDATA[
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+		<script src="http://ajax.googleapis.com/ajax/libs/dojo/1.8.3/dojo/dojo.js"></script>
+
+    <script type="text/javascript">
+			require(["dojo/domReady!", "dojo"], function(dom, dojo) {
+			var xhr = dojo.require("dojo/_base/xhr");
+			var longpoll = function() {
+		    xhr.post({
+					// The URL to request
+					url: "http://localhost:8080/push/anywhere",
+					handleAs:"text",
+					headers:{
+						"X-Requested-With": null,
+						"Content-Type": "application/json",
+					},
+					load: function(result) {
+						dojo.byId("foo").innerHTML += result + "<br />";
+						longpoll();
+					}
+				});
+			}
+			longpoll();
+		});		  
+		</script>
+	</head>
+	<body class="tundra">
+		<div id="foo"></div>
+	</body>
+</html>
+]]>
+					</content>
+				</response>
+			</transition>
+			
+		</state>		
+	</state>
+</scxml>
\ No newline at end of file
diff --git a/apps/samples/vrml/README.md b/apps/samples/vrml/README.md
new file mode 100644
index 0000000..2a019da
--- /dev/null
+++ b/apps/samples/vrml/README.md
@@ -0,0 +1,150 @@
+# VRML Server
+
+The VRML Server allows clients to retrieve sceneshots of 3D models on the filesystem in a variety of formats.
+
+## General Mode of Operation
+
+The VRML server will monitor its vrml directory recursively for <tt>vrml</tt> and <tt>wrl</tt>
+files. Whenever such a file is found, it is converted into a native, binary representation and
+saved in the tmp directory. Clients can now access sceneshots of this model by specifying the
+desired pose and format.
+
+## Accessing Sceneshots
+
+In the simplest case, a sceneshot is retrieved by simply requested its respective URL on the VRML server:
+
+<tt>http://host/vrml/HARD_MP_VAL_000.png</tt>
+
+All paths start with vrml and then reflect the vrml directory structure as it is being monitored. When a directory
+<tt>foo</tt> was added (either by creation or linking) in the vrml directory, its 3D models will be available at:
+
+<tt>http://host/vrml/foo/FANCY_MODEL_000.png</tt>
+
+When you do not pass any parameters, you will get a sceneshot of the model with its largest, axis aligned surface area 
+facing the camera. That is, the model will be rotated by multiples of 90deg to show the side of the bounding box which 
+has the largest surface area. The implied assumption is that this side is suited to identify the model and its eventual
+problems the quickest.
+
+If you do not like the standard sceneshot, you can pass a couple of parameters to adapt most aspects of the scene:
+
+<table>
+	<tr><th>Name</th><th>Range</th><th>Description</th></tr>
+	<tr><td><tt>pitch</tt></td><td>[0 .. 2&pi;] rad</td><td>Rotation along the x-axis</td></tr>
+	<tr><td><tt>roll</tt></td><td>[0 .. 2&pi;] rad</td><td>Rotation along the z-axis</td></tr>
+	<tr><td><tt>yaw</tt></td><td>[0 .. 2&pi;] rad</td><td>Rotation along the y-axis</td></tr>
+	<tr><td><tt>zoom</tt></td><td>[0 .. &infin;] bounding-sphere units</td><td>Distance of camera to model center</td></tr>
+	<tr><td><tt>x</tt></td><td>[-&infin; .. &infin;] OpenGL units</td><td>Translation on x-axis</td></tr>
+	<tr><td><tt>y</tt></td><td>[-&infin; .. &infin;] OpenGL units</td><td>Translation on y-axis</td></tr>
+	<tr><td><tt>z</tt></td><td>[-&infin; .. &infin;] OpenGL units</td><td>Translation on z-axis (consider using zoom instead)</td></tr>
+	<tr><td><tt>width</tt></td><td>[0 .. BIG] pixels</td><td>The width of the image (limited by your GPU)</td></tr>
+	<tr><td><tt>height</tt></td><td>[0 .. BIG] pixels</td><td>The height of the image</td></tr>
+	<tr><td><tt>autorotate</tt></td><td>[<tt>on</tt> | <tt>off</tt>]</td><td>Whether or not to autorotate first</td></tr>
+</table>
+
+<tt>http://host/vrml/HARD_MP_VAL_000.png?pitch=0.3&width=2560&height=1600</tt>
+
+There are some caveats:
+<ul>
+	<li>With euler angles such as pitch/roll/yaw, a gimbal lock can occur.
+	<li>Choosing zoom, x, y or z to big will move the model off the clipping distance.
+	<li>width and height have no upper limit, this might be a potential DoS.
+	<li>When observing series of models with autorotating on, not every model is guaranteed to start with the same pose.
+	<li>The OpenGL units really ought to be expressed in multiples of bounding-sphere units.
+</ul>
+
+## REST API
+
+The main purpose of the REST API is to provide clients with a list of available model files.
+
+<table>
+	<tr><th>Path</th><th>Type</th><th>Return Value</th><th>Example</th></tr>
+	<tr>
+		<td><tt>/vrml</tt></td>
+		<td><tt>GET</tt></td>
+		<td>
+			A JSON structure identifying all known models in the hierarchy as found on the filesystem.<br/>
+			
+			The entries are organized in a tree, reflecting the original locations relative to the vrml
+			directory. The suffix of <tt>png</tt> is just one example, supported extensions are ultimately
+			defined by the available <a href="http://www.link.de/here">OSG writer plugins</a>, but limited for
+			now to <tt>gif</tt>, <tt>jpg</tt>, <tt>png</tt>, <tt>tif</tt> and <tt>bmp</tt>.
+		</td>
+		<td>
+<pre>
+{
+  "models": {
+    "HARD_MP_VAL_000": {
+      "path": "/HARD_MP_VAL_000.png", 
+      "url": "http://host/vrml/HARD_MP_VAL_000.png"
+    }, 
+    "HARD_MP_VAL_001": {
+      "path": "/HARD_MP_VAL_001.png", 
+      "url": "http://host/vrml/HARD_MP_VAL_001.png"
+    }, 
+    "data": {
+      "SOFT_MP_VAL_000": {
+        "path": "/data/SOFT_MP_VAL_000.png", 
+        "url": "http://host/vrml/data/SOFT_MP_VAL_000.png"
+      }, 
+  ...
+</pre>			
+		</td>
+	</tr>
+
+	<tr>
+		<td><tt>/vrml/models</tt>, <tt>/vrml/wrls</tt></td>
+		<td><tt>GET</tt></td>
+		<td>
+			A JSON structure with information about the available binary model files in the tmp directory or the wrl 
+			files in the vrml directory respectively.<br/>
+
+			The entries correspond to the tree at <tt>/vrml</tt> but all paths are flattened using the path delimiter 
+			('<tt>:</tt>' per default).
+		</td>
+		<td>
+<pre>
+{
+  "HARD_MP_VAL_000": {
+    "atime":        1363002503, 
+    "ctime":        1362521747, 
+    "dir":          "/tmp", 
+    "extension":    "osgb", 
+    "group":        "/", 
+    "mtime":        "1362521747", 
+    "name":         "HARD_MP_VAL_000.osgb", 
+    "path":         "/tmp/HARD_MP_VAL_000.osgb", 
+    "relDir":       "/", 
+    "relPath":      "/HARD_MP_VAL_000.osgb", 
+    "size":         "580201", 
+    "strippedName": "HARD_MP_VAL_000"
+  }, 
+...
+</pre>			
+		</td>
+	</tr>
+
+		<tr>
+			<td><tt>/vrml/processed</tt></td>
+			<td><tt>GET</tt></td>
+			<td>
+				A JSON structure with information about the sceneshots that were requested recently and are still on disc.<br/>
+
+				The individual entries within a model key encode the request parameters seperated by underscores, that is:<br/>
+				The euler angles <tt>pitch</tt>, <tt>roll</tt>, <tt>yaw</tt>, <tt>zoom</tt>, translation in <tt>x</tt>, translation 
+				in <tt>y</tt>, translation in <tt>z</tt>, <tt>width</tt>, <tt>height</tt>, and whether or not to <tt>autorotate</tt>. 
+			</td>
+			<td>
+	<pre>
+{
+  "HARD_MP_VAL_000": {
+    "0.94_0_0_1_0_0_0_640_480_on.png": {
+      "atime":        1363002687, 
+      "ctime":        1363002687, 
+      "dir":          "/tmp", 
+...
+	</pre>
+			</td>
+		</tr>
+
+
+</table>
diff --git a/apps/samples/viewer.html b/apps/samples/vrml/viewer.html
index 4cf971b..4cf971b 100644
--- a/apps/samples/viewer.html
+++ b/apps/samples/vrml/viewer.html
diff --git a/apps/samples/viewer.js b/apps/samples/vrml/viewer.js
index dac3a96..dac3a96 100644
--- a/apps/samples/viewer.js
+++ b/apps/samples/vrml/viewer.js
diff --git a/apps/samples/vrml-server.scxml b/apps/samples/vrml/vrml-server.scxml
index c5647b0..0d6517c 100644
--- a/apps/samples/vrml-server.scxml
+++ b/apps/samples/vrml/vrml-server.scxml
@@ -1,5 +1,7 @@
 <scxml datamodel="ecmascript" name="vrml">
 	<script src="http://uscxml.tk.informatik.tu-darmstadt.de/scripts/dump.js" />
+	<script src="http://uscxml.tk.informatik.tu-darmstadt.de/scripts/string.endsWith.js" />
+	<script src="http://uscxml.tk.informatik.tu-darmstadt.de/scripts/array.last.js" />
 	<script>
 		var wrls = {};        // information of the wrl, vrml files
 		var models = {};      // information of the osgb files
@@ -126,25 +128,7 @@
 			}
 			return struct;
 		}
-		
-		/**
-		 * Provide an endsWith function for the string prototype
-		 */
-		if(!Array.prototype.last) {
-			String.prototype.endsWith = function(suffix) {
-			    return this.indexOf(suffix, this.length - suffix.length) !== -1;
-			}
-		}
-		
-		/**
-		 * Provide last() for arrays
-		 */
-		if(!Array.prototype.last) {
-		    Array.prototype.last = function() {
-		        return this[this.length - 1];
-		    }
-		}
-		
+
 		// check whether a given string represents a number	
 		function isNumber(n) {
 		  return !isNaN(parseFloat(n)) &amp;&amp; isFinite(n);
@@ -396,7 +380,7 @@
 				</response>
 			</transition>
 
-			<!-- XHR CORS preflight response  -->
+			<!-- XHR CORS preflight response -->
 			<transition event="http.options" target="idle">
 				<script>dump(_event);</script>
 				<response status="200" requestexpr="_event.origin">