forked from OpenPDU/openpdu
395 lines
11 KiB
Python
395 lines
11 KiB
Python
#!/usr/bin/env python
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import os
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import sys
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import argh
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#from argh import arg
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import re
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import glob
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import time
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import ConfigParser
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import json as JSON
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from bottle import route, run, template
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import smbus2
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#import math
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#from numpy import mean, sqrt, square
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VERSION = '0.1.2'
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boardsDefaults = {'inverted':False}
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outletsDefaults = {'description': 'Generic outlet','startpower':False}
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_boards = []
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_outlets = []
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@route('/version')
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def index():
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return VERSION
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@route('/boards')
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def index():
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b = [board.toJSON() for board in _boards]
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return JSON.dumps({'boards':b})
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@route('/initboards')
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def index():
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for board in _boards:
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board.init()
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return
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@route('/initoutlets')
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def index():
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for outlet in _outlets:
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outlet.init()
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return
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@route('/outlets')
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def index():
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o = [outlet.toJSON() for outlet in _outlets]
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return JSON.dumps({'outlets':o})
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@route('/outlet/<outlet>/power/<onoff>')
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def index(outlet, onoff):
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outlet=int(outlet)
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o = [o for o in _outlets if o.outletnum==outlet]
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if len(o) != 1:
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msg = 'wrong outlet number: %s' % str(outlet)
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return JSON.dumps({'message':msg})
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theOutlet = o[0]
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status = (onoff == 'on')
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out = theOutlet.setpower(status)
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if out is None:
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msg = "Cannot set power status for outlet %s" % outlet
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return JSON.dumps({'message':msg,'outlet':outlet})
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else:
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pwrstr = 'on' if out==1 else 'off'
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msg = "Outlet #%s powered %s" % (outlet, pwrstr)
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return JSON.dumps({'powerstatus':out==1,'outlet':outlet})
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@route('/outlet/<outlet>/power')
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def index(outlet):
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outlet=int(outlet)
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o = [o for o in _outlets if o.outletnum==outlet]
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if len(o) != 1:
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msg = 'wrong outlet number: %s' % str(outlet)
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return JSON.dumps({'message':msg})
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theOutlet = o[0]
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out = theOutlet.getpower()
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return JSON.dumps({'powerstatus':out,'outlet':outlet})
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class BoardDummy(object):
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channels = []
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def __init__(self, boardnum, channels=None, filename=None):
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self.boardnum = boardnum
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if channels is None:
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self.channels = 1
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else:
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self.channels = int(channels)
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self.parser = ConfigParser.SafeConfigParser()
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self.filename = filename
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if os.path.isfile(filename) and os.access(filename, os.R_OK):
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pass
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else:
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with open(self.filename, 'wb') as theFile:
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self.parser.add_section('STATUS')
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for c in range(0,self.channels):
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self.parser.set('STATUS', 'channel%s' % c, '0')
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self.parser.write(theFile)
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def toJSON(self):
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return {'boardnum':self.boardnum,'type':'dummy','channels':self.channels}
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def setpower(self, channel, power):
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self.parser.read(self.filename)
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p = '1' if power else '0'
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s = self.parser.set('STATUS', 'channel%s' % channel, p)
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with open(self.filename, 'wb') as theFile:
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return self.parser.write(theFile)
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return False
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def getpower(self, channel):
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self.parser.read(self.filename)
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s = self.parser.get('STATUS', 'channel%s' % channel)
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return int(s)==1
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def init(self):
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pass
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# MCP23008
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class BoardI2COut(object):
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data = 0
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next_refresh = 0
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lifetime_sec = 2
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def __init__(self, boardnum, channels=None, address=None, bus=None, inverted=False):
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self.boardnum = boardnum
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if channels is None:
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self.channels = 0
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else:
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self.channels = channels
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if address is None:
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self.address = 0x20
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else:
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self.address = int(address, 16)
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if bus is None:
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self.bus = 1
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else:
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self.bus = bus
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self.inverted = inverted
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if not glob.glob('/dev/i2c*'):
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raise OSError('Cannot access I2C. Please ensure I2C is enabled')
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self._bus = smbus2.SMBus(self.bus)
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def toJSON(self):
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return {'boardnum':self.boardnum,'type':'i2c-out','channels':self.channels,'address':self.address}
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def setpower(self, channel, power):
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old_data = data = self.getdata()
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mask = 1 << channel
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data &= ~mask
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if self.inverted:
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power = not power
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if power:
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data |= mask
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if old_data != data:
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self.next_refresh = 0
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return self._bus.write_byte_data(self.address, 0x09,data)
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def getpower(self, channel):
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data = self.getdata()
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d = ( data >> channel ) & 1
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c = 0 if self.inverted else 1
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return d == c
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def getdata(self):
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now = time.time()
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if now > self.next_refresh:
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self.data = self._bus.read_byte_data(self.address, 0x0A)
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self.next_refresh = now + self.lifetime_sec
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return self.data
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def init(self):
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return self._bus.write_byte_data(self.address, 0x00, 0x00)
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class BoardGpioOut(object):
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gpios = []
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def __init__(self, boardnum, channels=None, gpios=None, inverted=False):
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self.boardnum = boardnum
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if channels is None:
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self.channels = 0
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else:
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self.channels = int(channels)
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self.inverted = inverted
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if not isinstance(gpios, list):
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print 'No gpios specified for gpio board %s' % self.boardnum
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if len(gpios) != self.channels:
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print 'Wrong number of gpios specified for gpio board %s' % self.boardnum
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self.gpios = [int(gpio) for gpio in gpios]
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def toJSON(self):
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return {'boardnum':self.boardnum,'type':'gpio-out','channels':self.channels,'inverted':self.inverted}
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def setpower(self, channel, power):
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io = self.gpios[channel]
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fn = '/sys/class/gpio/gpio%s/value' % io
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f = open(fn,'w')
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if self.inverted:
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power = not power
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out = '1' if power else '0'
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return f.write(out)
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def getpower(self, channel):
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io = self.gpios[channel]
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fn = '/sys/class/gpio/gpio%s/value' % io
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f = open(fn,'r')
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e = f.read()
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power = int('0'+e) == 1
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if self.inverted:
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power = not power
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return power
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def init(self):
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for gpio in self.gpios:
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if not os.path.isdir('/sys/class/gpio/gpio%s/' % gpio):
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open('/sys/class/gpio/export','w').write(str(gpio))
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fn = '/sys/class/gpio/gpio%s/direction' % gpio
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open(fn,'w').write('out')
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return
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class Outlet(object):
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def __init__(self, outletnum, boardnum, channel, startpower=False):
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self.outletnum = int(outletnum)
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b = [b for b in _boards if b.boardnum==int(boardnum)]
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self.board = b[0]
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self.channel = int(channel)
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self.description = 'Outlet # %s' % self.outletnum
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self.startpower = startpower
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def init(self):
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self.setpower(self.startpower)
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return
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def setpower(self, power):
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self.board.setpower(self.channel,power)
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if self.board.getpower(self.channel) == power:
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return power
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else:
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return None
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def getpower(self):
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return self.board.getpower(self.channel)
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def toJSON(self):
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status = self.board.getpower(self.channel)
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return {'outlet':self.outletnum,'description':self.description,'board':self.board.boardnum,'channel':self.channel,'powerstatus':status}
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class BoardI2Ccurrent(object):
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data = 0
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next_refresh = 0
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lifetime_sec = 2
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def __init__(self, boardnum, channels=None, address=None, bus=None):
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self.boardnum = boardnum
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if channels is None:
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self.channels = 0
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else:
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self.channels = channels
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if address is None:
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self.address = 0x48
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else:
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self.address = int(address, 16)
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if bus is None:
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self.bus = 1
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else:
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self.bus = bus
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if not glob.glob('/dev/i2c*'):
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raise OSError('Cannot access I2C. Please ensure I2C is enabled')
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self._bus = smbus2.SMBus(self.bus)
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self.my_zero = 19920
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def toJSON(self):
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return {'boardnum':self.boardnum,'type':'i2c-current','channels':self.channels,'address':self.address}
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def _readvalue():
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config = 0b1110000011000011
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self._bus.write_word_data(self.address, 0x01, config)
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while True:
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d1 = self._bus.read_word_data(self.address, 0x01)
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if d1 == config:
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break
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d1 = self._bus.read_word_data(self.address, 0x00)
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msb = d1 & 0x00FF
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lsb = d1 & 0xFF00
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val = msb << 8 | lsb >> 8
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return (val - self.my_zero) >> 4
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def setpower(self, channel, power):
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old_data = data = self.getdata()
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mask = 1 << channel
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data &= ~mask
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if self.inverted:
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power = not power
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if power:
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data |= mask
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if old_data != data:
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self.next_refresh = 0
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return self._bus.write_byte_data(self.address, 0x09,data)
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def getpower(self, channel):
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data = self.getdata()
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d = ( data >> channel ) & 1
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c = 0 if self.inverted else 1
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return d == c
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def getdata(self):
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now = time.time()
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if now > self.next_refresh:
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self.data = self._bus.read_byte_data(self.address, 0x0A)
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self.next_refresh = now + self.lifetime_sec
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return self.data
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def init(self):
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return self._bus.write_byte_data(self.address, 0x00, 0x00)
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boardsConfigParser = ConfigParser.SafeConfigParser(defaults=boardsDefaults)
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boardsConfigFile = '/etc/openpdu/boards.conf'
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if os.path.isfile(boardsConfigFile) and os.access(boardsConfigFile, os.R_OK):
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boardsConfigParser.read(boardsConfigFile)
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for s in boardsConfigParser.sections():
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if re.match('^board.*',s):
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bType = boardsConfigParser.get(s, 'type')
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num = int(re.sub(r'^board','',s))
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inverted = int('0' + boardsConfigParser.get(s, 'inverted')) == 1
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channels = int(boardsConfigParser.get(s, 'channels'))
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if bType=='gpio-out':
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gpios = []
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for g in range(0,channels):
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gpios.append(int(boardsConfigParser.get(s, 'channel%s' % g)))
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b = BoardGpioOut(boardnum=num, channels=channels, gpios=gpios, inverted=inverted)
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_boards.append(b)
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elif bType=='i2c-out':
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address = boardsConfigParser.get(s, 'address')
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bus = boardsConfigParser.get(s, 'bus')
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b = BoardI2COut(boardnum=num, channels=channels, address=address, bus=bus, inverted=inverted)
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_boards.append(b)
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elif bType=='dummy':
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filename = boardsConfigParser.get(s, 'filename')
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b = BoardDummy(boardnum=num, channels=channels, filename=filename)
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_boards.append(b)
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outletsConfigParser = ConfigParser.SafeConfigParser(defaults=outletsDefaults)
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outletsConfig = '/etc/openpdu/outlets.conf'
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if os.path.isfile(outletsConfig) and os.access(outletsConfig, os.R_OK):
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outletsConfigParser.read(outletsConfig)
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for s in outletsConfigParser.sections():
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if re.match('^outlet.*',s):
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num = int(re.sub(r'^outlet','',s))
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description = outletsConfigParser.get(s, 'description')
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boardnum = outletsConfigParser.get(s, 'board')
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channel = outletsConfigParser.get(s, 'channel')
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startpower = int('0' + outletsConfigParser.get(s, 'startpower')) == 1
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o = Outlet(outletnum=num, boardnum=boardnum, channel=channel, startpower=startpower)
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o.description = description
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_outlets.append(o)
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run(host='0.0.0.0', port=5000)
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