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105 lines
2.4 KiB
105 lines
2.4 KiB
#
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# Simple implementation of (a part) of RFC4240
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# announcement service.
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#
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# supported parameters:
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# play, repeat, duration, delay
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from log import *
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from ivr import *
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from urlparse import urlparse, urlsplit
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from urllib import urlretrieve
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from os import unlink
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TIMEOUT_TIMER_ID = 1
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DELAY_TIMER_ID = 2
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class IvrDialog(IvrDialogBase):
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announcement=None
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filename = ""
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repeat="1"
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delay=0
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duration=-1
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play=""
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delete_onbye = False
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repeat_left = 0
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def onSessionStart(self,hdrs):
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debug("configuration: %s" % repr(config))
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debug("local_uri = " + self.dialog.local_uri);
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# we use urlsplit as urlparse only returns the
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# parameters of the last path
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params = urlsplit(self.dialog.local_uri)[2].split(";")
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debug("parameters are " + str(params))
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for param in params[0:len(params)]:
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if (param.startswith("play=")):
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self.play=param[5:len(param)]
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elif (param.startswith("repeat=")):
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self.repeat=param[7:len(param)]
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elif (param.startswith("delay=")):
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self.delay=int(param[6:len(param)])
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elif (param.startswith("duration=")):
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self.duration=int(param[9:len(param)])
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resource = urlparse(self.play)
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if (resource[0] == "http"):
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self.delete_onbye = True
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self.filename = urlretrieve(self.play)[0]
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debug("play: "+self.play+" repeat: "+self.repeat+" delay:"+
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str(self.delay)+" duration: "+str(self.duration))
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self.announcement = IvrAudioFile()
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self.announcement.open(self.filename,AUDIO_READ)
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if (self.repeat!="forever"):
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self.repeat_left=int(self.repeat)-1
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else:
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self.repeat_left=500 # maximum
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if (int(self.duration) > 0):
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self.setTimer(TIMEOUT_TIMER_ID, self.duration/1000)
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self.enqueue(self.announcement, None)
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def onBye(self):
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self.stopSession()
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self.cleanup()
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def onEmptyQueue(self):
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if (self.repeat_left>0):
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if (int(self.delay) > 0):
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self.setTimer(DELAY_TIMER_ID, int(self.delay)/1000)
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else:
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self.repeat_left-=1
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self.announcement.rewind()
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self.enqueue(self.announcement, None)
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else:
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self.bye()
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self.stopSession()
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self.cleanup()
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def onDtmf(self,key,duration):
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pass
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def onTimer(self, timer_id):
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if (timer_id == TIMEOUT_TIMER_ID):
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self.bye()
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self.stopSession()
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self.cleanup()
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elif (timer_id == DELAY_TIMER_ID):
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self.repeat_left-=1
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self.announcement.rewind()
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self.enqueue(self.announcement, None)
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def cleanup(self):
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if (self.delete_onbye):
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unlink(self.filename)
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debug("cleanup..." + self.filename + " deleted.")
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self.removeTimers()
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