Function printerPrintheadCommand

src/astroprint/api/printer.py:279–337

()

@api.route("/printer/printhead", methods=["POST"])
@restricted_access
def printerPrintheadCommand():
	pm = printerManager()

	valid_commands = {
		"jog": [],
		"home": ["axes"],
		"babystepping": []
	}
	command, data, response = util.getJsonCommandFromRequest(request, valid_commands)
	if not pm.isOperational() or command != "babystepping" and pm.isPrinting():
		# do not jog when a print job is running or we don't have a connection
		return make_response("Printer is not operational or currently printing", 409)

	if response is not None:
		return response

	valid_axes = ["x", "y", "z"]
	##~~ jog command
	if command == "jog":
		# validate all jog instructions, make sure that the values are numbers
		validated_values = {}
		for axis in valid_axes:
			if axis in data:
				value = data[axis]
				if not isinstance(value, (int, long, float)):
					return make_response("Not a number for axis %s: %r" % (axis, value), 400)
				validated_values[axis] = value

		# execute the jog commands
		for axis, value in validated_values.iteritems():
			pm.jog(axis, value)

	##~~ home command
	elif command == "home":
		validated_values = []
		axes = data["axes"]
		for axis in axes:
			if not axis in valid_axes:
				return make_response("Invalid axis: %s" % axis, 400)
			validated_values.append(axis)

		# execute the home command
		pm.home(validated_values)

	##~~ babystepping command
	elif command == "babystepping":
		if "amount" in data:
			value = data['amount']

			if not isinstance(value, (int, long, float)):
				return make_response("Not a number for amount: %r" % (value), 400)

			validated_values = {}
			validated_values['amount'] = value

			# execute the babystepping command
			pm.babystepping(validated_values['amount'])