PostTunesAppDelegate.py

   1 #
   2 #  PostTunesAppDelegate.py
   3 #  PostTunes
   4 #
   5 #  Created by Joseph Spiros on 3/5/09.
   6 #  Copyright iThink Software 2009. All rights reserved.
   7 #
   8
   9 import objc
  10 from urllib import urlencode
  11 from urllib2 import urlopen, URLError
  12 from base64 import b64encode
  13 from PyObjCTools import AppHelper
  14 from Foundation import *
  15 from AppKit import *
  16 from ScriptingBridge import *
  17
  18 class PostTunesAppDelegate(NSObject):
  19         preferencesWindow = objc.IBOutlet()
  20         warnFailure = objc.ivar(u"warnFailure")
  21         lastPersistentID = objc.ivar(u"lastPersistentID")
  22         handlerURL = objc.ivar(u"handlerURL")
  23         secretKey = objc.ivar(u"secretKey")
  24
  25         def init(self):
  26                 self = super(PostTunesAppDelegate, self).init()
  27                 if not self:
  28                         return None
  29                 self.warnFailure = True
  30                 self.lastPersistentID = None
  31                 self.handlerURL = None
  32                 self.secretKey = None
  33                 return self
  34
  35         def awakeFromNib(self):
  36                 self.handlerURL = NSUserDefaults.standardUserDefaults().stringForKey_("handlerURL")
  37                 self.secretKey = NSUserDefaults.standardUserDefaults().stringForKey_("secretKey")
  38                 if not self.handlerURL:
  39                         self.runConfigurationAlert_title_description_(None, "In order for PostTunes to post tracks, you must set a Handler URL. The optional Secret Key may be used by the script at the Handler URL to validate your posts.")
  40                 self.observeNote()
  41
  42         def runConfigurationAlert_title_description_(self, title, description):
  43                 if not title:
  44                         title = "PostTunes Configuration"
  45                 alert = NSAlert.alertWithMessageText_defaultButton_alternateButton_otherButton_informativeTextWithFormat_(title, "OK", "Quit PostTunes", None, description)
  46                 alert.setAccessoryView_(self.preferencesWindow.contentView().retain())
  47                 alert.setAlertStyle_(NSCriticalAlertStyle)
  48                 alertReturn = alert.runModal()
  49                 if alertReturn == NSAlertDefaultReturn:
  50                         self.handlerURL = NSUserDefaults.standardUserDefaults().stringForKey_("handlerURL")
  51                         if not self.handlerURL:
  52                                 self.runConfigurationAlert_title_description_("PostTunes Handler URL Missing", "You must set a Handler URL for PostTunes to function.")
  53                 elif alertReturn == NSAlertAlternateReturn:
  54                         AppHelper.stopEventLoop()
  55
  56         def observeNote(self):
  57                 NSDistributedNotificationCenter.defaultCenter().addObserver_selector_name_object_(self, "gotNotification:", "com.apple.iTunes.playerInfo", None)
  58
  59         def gotNotification_(self, notification):
  60                 self.handlerURL = NSUserDefaults.standardUserDefaults().stringForKey_("handlerURL")
  61                 self.secretKey = NSUserDefaults.standardUserDefaults().stringForKey_("secretKey")
  62                 if notification:
  63                         noteInfo = notification.userInfo()
  64                         playerState = noteInfo["Player State"]
  65                         if "PersistentID" in noteInfo:
  66                                 persistentID = noteInfo["PersistentID"]
  67                                 if (persistentID != self.lastPersistentID) and ("Name" in noteInfo):
  68                                         if playerState == "Playing":
  69                                                 if self.handlerURL:
  70                                                         # started playing a new track
  71                                                         # get the applescript track and make sure it's the same (compare name)
  72                                                         iTunes = SBApplication.applicationWithBundleIdentifier_("com.apple.iTunes")
  73                                                         iTunesTrack = iTunes.currentTrack()
  74                                                         if iTunesTrack.name() == noteInfo["Name"]:
  75                                                                 self.trackChanged_iTunesTrack_(noteInfo, iTunesTrack)
  76                                                                 self.lastPersistentID = persistentID
  77                                                 else:
  78                                                         self.runConfigurationAlert_title_description_("PostTunes Handler URL Missing", "PostTunes was unable to post a track due to the Handler URL being missing. You must set a Handler URL for PostTunes to function.")
  79
  80                         else:
  81                                 self.lastPersistentID = None
  82                                 # stopped playing
  83
  84         def trackChanged_iTunesTrack_(self, noteInfo, iTunesTrack):
  85                 trackData = {"title": noteInfo["Name"]}
  86                 if self.secretKey:
  87                         trackData["key"] = self.secretKey
  88                 if "Artist" in noteInfo:
  89                         trackData["artist"] = noteInfo["Artist"]
  90                 if "Album" in noteInfo:
  91                         trackData["album"] = noteInfo["Album"]
  92                 if "Store URL" in noteInfo:
  93                         trackData["url"] = noteInfo["Store URL"]
  94                 iTunesArtworks = iTunesTrack.artworks()
  95                 if len(iTunesArtworks) >= 1:
  96                         artwork = iTunesArtworks[0]
  97                         artworkTIFF = artwork.data().TIFFRepresentation()
  98                         artworkPNG = NSBitmapImageRep.imageRepWithData_(artworkTIFF).representationUsingType_properties_(NSPNGFileType, None)
  99                         trackData["artpng"] = b64encode(artworkPNG.bytes())
 100                 try:
 101                         urlopen(self.handlerURL, urlencode(trackData))
 102                 except URLError:
 103                         description = (u"PostTunes encountered an error when attempting to post the track \"%s\" to your Handler URL." % trackData["title"])
 104                         NSLog(u"%s Handler URL: %s" % (description, self.handlerURL))
 105                         if self.warnFailure:
 106                                 alert = NSAlert.alertWithMessageText_defaultButton_alternateButton_otherButton_informativeTextWithFormat_("PostTunes Could Not Post Track", "OK", "Configure PostTunes", "Quit PostTunes", description)
 107                                 alert.setAlertStyle_(NSCriticalAlertStyle)
 108                                 alert.setShowsSuppressionButton_(True)
 109                                 alertReturn = alert.runModal()
 110                                 if alert.suppressionButton().state() == NSOnState:
 111                                         self.warnFailure = False
 112                                 if alertReturn == NSAlertAlternateReturn:
 113                                         self.runConfigurationAlert_title_description_(None, (u"%s Please confirm your Handler URL." % description))
 114                                 elif alertReturn == NSAlertOtherReturn:
 115                                         AppHelper.stopEventLoop()