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annotate service/dpms/dpms_service.py @ 410:a60155ded95f

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reindent Ignore-this: 4d6ed319001e7781a67e8a820aa8972e
author drewp@bigasterisk.com
date Tue, 12 Mar 2019 00:34:00 -0700
parents 6c5303b85948
children 1007ca70c34d
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1 #!bin/python
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2
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3 """
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4 sample supervisord block
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5
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6 [program:dpms_9095]
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7 directory=/my/proj/homeauto/service/dpms
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8 command=/my/proj/homeauto/service/dpms/bin/python dpms.py
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9 user=drewp
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10
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11 On one box, this goes super slow when avahi daemon is running. Maybe
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12 it's for an attempted dns lookup of the requesting IP address, which I
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13 wish I could switch off.
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14
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15 --
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16
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17 may need this:
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18 ps axf | grep /run/gdm
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19 18339 tty7 Ss+ 0:00 \_ /usr/bin/X :0 -background none -verbose -auth /run/gdm/auth-for-gdm-iQoCDZ/database -nolisten tcp vt7
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20 eval xauth add `sudo xauth -f /run/gdm/auth-for-gdm-iQoCDZ/database list :0`
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22 """
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23
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24 from twisted.internet import reactor, task
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25 import cyclone.web
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26 from influxdb import InfluxDBClient
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27 import subprocess, sys, socket, time, os
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28 from rdflib import Namespace, URIRef
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29 DEV = Namespace("http://projects.bigasterisk.com/device/")
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30 ROOM = Namespace("http://projects.bigasterisk.com/room/")
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31
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32 sys.path.append("/my/site/magma")
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33 from stategraph import StateGraph
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34 sys.path.append("../../lib")
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35 from localdisplay import setDisplayToLocalX
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37 influx = InfluxDBClient('bang6', 9060, 'root', 'root', 'main')
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38
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39 def getMonitorState():
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40 out = subprocess.check_output(['xset', 'q'])
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41 for line in out.splitlines():
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42 line = line.strip()
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43 if line == 'Monitor is On':
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44 return 'on'
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45 elif line in ['Monitor is Off', 'Monitor is in Suspend', 'Monitor is in Standby']:
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46 return 'off'
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47 raise NotImplementedError("no matching monitor line in xset output")
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48
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49 class Root(cyclone.web.RequestHandler):
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50 def get(self):
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51 getMonitorState() # to make it fail if xset isn't working
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52 self.write('''
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53 Get and put the <a href="monitor">monitor power</a> with dpms.
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54 <a href="graph">rdf graph</a> available.''')
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55
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56 class Monitor(cyclone.web.RequestHandler):
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57 def get(self):
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58 self.set_header('content-type', 'text/plain')
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59 self.write(getMonitorState())
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60
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61 def put(self):
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62 body = self.request.body.strip()
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63 if body in ['on', 'off']:
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64 subprocess.check_call(['xset', 'dpms', 'force', body])
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65 self.set_status(204)
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66 else:
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67 raise NotImplementedError("body must be 'on' or 'off'")
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70 class Graph(cyclone.web.RequestHandler):
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71 def get(self):
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72 host = socket.gethostname()
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73 g = StateGraph(ctx=DEV['dpms/%s' % host])
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74 g.add((URIRef("http://bigasterisk.com/host/%s/monitor" % host),
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75 ROOM['powerStateMeasured'],
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76 ROOM[getMonitorState()]))
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77
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78 self.set_header('Content-type', 'application/x-trig')
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79 self.write(g.asTrig())
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82 class Poller(object):
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83 def __init__(self):
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84 self.lastSent = None
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85 self.lastSentTime = 0
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86 task.LoopingCall(self.poll).start(5)
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87
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88 def poll(self):
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89 now = int(time.time())
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90 try:
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91 state = getMonitorState()
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92 except subprocess.CalledProcessError, e:
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93 print repr(e)
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94 os.abort()
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95 if state != self.lastSent or (now > self.lastSentTime + 3600):
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96 influx.write_points([
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97 {'measurement': 'power',
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98 'tags': {'device': '%sMonitor' % socket.gethostname()},
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99 'fields': {'value': 1 if state == 'on' else 0},
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100 'time': now
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101 }], time_precision='s')
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102
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103 self.lastSent = state
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104 self.lastSentTime = now
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105
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106 setDisplayToLocalX()
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107 poller = Poller()
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108
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109 reactor.listenTCP(9095, cyclone.web.Application([
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110 (r'/', Root),
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111 (r'/monitor', Monitor),
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112 (r'/graph', Graph),
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113 ]), interface='::')
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115 reactor.run()
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117