Start of basic robot-controlling http server

mainecivichackday · Jun 13, 2015 · 5493f58 · 5493f58
1 parent 82e7d9b
commit 5493f58
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diff --git a/drive.py b/drive.py
@@ -0,0 +1,20 @@
+import errors
+import web
+
+class drive:
+	def GET(self):
+		print "VROOOOM!"
+		raise errors.NotSupportedError
+		return "This should return a 405 - Not Supported Error"
+
+	#POST excepts a single command in plain teext.
+	#Current supported commands: forward', 'reverse', 'left', or 'right'
+	def POST(self):
+		print ("web.data: %s" % web.data())	#'forward', 'reverse', 'left', or 'right'
+		direction = web.data()
+		if direction not in ['forward', 'reverse', 'left', 'right']:
+			raise errors.BadRequestError
+
+		#Set robot direction here...
+
+		return "Updated direction"
diff --git a/errors.py b/errors.py
@@ -0,0 +1,17 @@
+import web
+
+#405 error when incorrect action is used on a resource
+class NotSupportedError(web.HTTPError):
+	def __init__(self):
+		status = '405 Method Not Alloweds'
+		headers = {'Content-Type': 'text/html'}
+		data = 'That method is not valid for this action.'
+		web.HTTPError.__init__(self, status, headers, data)
+
+#400 error when invalid data is sent to a resource
+class BadRequestError(web.HTTPError):
+	def __init__(self):
+		status = '400'
+		headers = {'Content-Type': 'text/html'}
+		data = 'Invalid data supplied in request.'
+		web.HTTPError.__init__(self, status, headers, data)
diff --git a/server.py b/server.py
@@ -0,0 +1,34 @@
+import web
+from drive import drive
+
+urls = (
+    '/', 'index',
+    '/drive', 'drive',
+)
+app = web.application(urls, globals())
+
+#index raises a 301 error pointing to the index.html page
+class index:
+	def GET(self):
+		raise web.seeother('/static/index.html')
+
+#405 error when incorrect action is used on a resource
+class NotSupportedError(web.HTTPError):
+	def __init__(self):
+		status = '405 Method Not Alloweds'
+		headers = {'Content-Type': 'text/html'}
+		data = 'That method is not valid for this action.'
+		web.HTTPError.__init__(self, status, headers, data)
+
+#400 error when invalid data is sent to a resource
+class BadRequestError(web.HTTPError):
+	def __init__(self):
+		status = '400'
+		headers = {'Content-Type': 'text/html'}
+		data = 'Invalid data supplied in request.'
+		web.HTTPError.__init__(self, status, headers, data)
+
+
+
+if __name__ == "__main__":
+    app.run()
diff --git a/static/forward.png b/static/forward.png
diff --git a/static/index.html b/static/index.html
@@ -0,0 +1,56 @@
+<html>
+<head>
+	<script type='text/javascript'>
+		anchorclick = function(dir){
+			console.log("Anchor click");
+			postMoveDirection(dir)
+			return false;
+		}
+
+		postMoveDirection = function(dir){
+			console.log('Derp')
+			var request = new XMLHttpRequest();
+			request.open('POST', '/drive');
+			request.setRequestHeader('Content-Type', 'text');
+
+			request.onload = function(){
+				if(this.status >= 200 && this.status < 400){
+					resp = this.response;
+					console.log("Sent POST request, got back  ", resp);
+				} else {
+
+					console.log("Error sending POST request: ", this.response);
+				}
+
+			}
+			request.send(dir)
+			return false //Cancels event
+		}
+	</script>
+</head>
+
+<body>
+	<h1 align=center >Project Battleaxe Controls</h1>
+
+	<br>
+
+	<table>
+		<tr>
+			<td></td>
+			<td><a href="#" onclick="postMoveDirection('forward')"><img src='/static/forward.png'/></a></td>
+			<td></td>
+		</tr>
+		<tr>
+			<td><a href="#" onclick="postMoveDirection('left')"><img src='/static/left.png'/></a></td>
+			<td align="center"><font size="18"><a href="#" onclick="postMoveDirection('notvalidyet')"><b>A</b></a></font></td>
+			<td><a href="#" onclick="postMoveDirection('right')"><img src='/static/right.png'/></a></td>
+		</tr>
+		<tr>
+			<td></td>
+			<td><a href="#" onclick="postMoveDirection('reverse')"><img src='/static/reverse.png'/></a></td>
+			<td></td>
+		</tr>
+	</table>
+
+</body>
+</html>
diff --git a/static/left.png b/static/left.png
diff --git a/static/ocr_pi.png b/static/ocr_pi.png
diff --git a/static/reverse.png b/static/reverse.png
diff --git a/static/right.png b/static/right.png