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1 """
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2 holds the current message on the front door lcd
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3 """
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4 import cyclone.web, sys
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5 import restkit
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6 from twisted.python import log
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7 from twisted.internet import reactor
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8 from twisted.internet.defer import inlineCallbacks
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9 sys.path.append("/my/proj/homeauto/lib")
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10 from cycloneerr import PrettyErrorHandler
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11
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12 class LcdParts(object):
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13 def __init__(self, putUrl):
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14 self.putUrl = putUrl
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15 self.message = ""
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16 self.lastLine = ""
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17
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18 def updateLcd(self):
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19 whole = "%-147s%-21s" % (self.message, self.lastLine)
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20 restkit.request(url=self.putUrl,
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21 method="PUT",
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22 body=whole,
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23 headers={"content-type":"text/plain"})
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24
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25 class Index(PrettyErrorHandler, cyclone.web.RequestHandler):
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26 @inlineCallbacks
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27 def get(self):
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28
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29 # refresh output, and make an error if we can't talk to them
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30 yield self.settings.lcdParts.updateLcd()
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31
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32 self.set_header("Content-Type", "application/xhtml+xml")
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33 self.write(open("index.html").read())
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34
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35 def getArg(s):
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36 return s.request.body.encode("ascii")
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37
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38 class Message(PrettyErrorHandler, cyclone.web.RequestHandler):
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39 def get(self):
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40 self.set_header("Content-Type", "text/plain")
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41 self.write(self.settings.lcdParts.message)
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42
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43 def put(self):
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44 self.settings.lcdParts.message = getArg(self)
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45 self.settings.lcdParts.updateLcd()
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46 self.set_status(204)
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47
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48 class LastLine(PrettyErrorHandler, cyclone.web.RequestHandler):
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49 def get(self):
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50 self.set_header("Content-Type", "text/plain")
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51 self.write(self.settings.lcdParts.lastLine)
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52
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53 def put(self):
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54 self.settings.lcdParts.lastLine = getArg(self)
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55 self.settings.lcdParts.updateLcd()
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56 self.set_status(204)
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57
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58 class Application(cyclone.web.Application):
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59 def __init__(self, lcdParts):
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60 handlers = [
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61 (r"/", Index),
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62 (r"/message", Message),
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63 (r'/lastLine', LastLine),
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64 ]
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65 settings = {"lcdParts" : lcdParts}
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66 cyclone.web.Application.__init__(self, handlers, **settings)
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67
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68 if __name__ == '__main__':
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69
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70 config = {
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71 'frontDoorArduino': "http://space:9080/",
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72 'doorChangePost' : 'http://bang.bigasterisk.com:9069/inputChange',
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73 'servePort' : 9081,
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74 }
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75
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76 lcdParts = LcdParts(config['frontDoorArduino'] + 'lcd')
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77
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78 log.startLogging(sys.stdout)
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79 reactor.listenTCP(config['servePort'], Application(lcdParts))
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80 reactor.run()
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