#!/usr/bin/python """ Copyright (c) 2007 Tyler G. Hicks-Wright Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ import sys import os from shutil import copyfile from xml.sax import make_parser from xml.sax.saxutils import XMLGenerator from xml.sax.xmlreader import AttributesNSImpl from xml.sax.handler import ContentHandler class iTunesTrack: def __init__(self): self.sTitle = '' self.sArtist = '' self.nRating = -1 def __str__(self): return "Track = %s - SArtist = %s - Rating: %d" % (self.sTitle, self.sArtist, self.nRating) class ITunesHandler(ContentHandler): def __init__(self): ContentHandler.__init__(self) self.fParsingTag = False self.sTag = '' self.sValue = '' self.lTracks = [] self.itTrack = None def startElement(self, sName, attributes): if sName == 'key': self.fParsingTag = True def characters(self, sData): if self.fParsingTag: self.sTag = sData self.sValue = '' else: # could be multiple lines, so append sData. self.sValue = self.sValue + sData def endElement(self,sName): if sName == 'key': self.fParsingTag = False else: if self.sTag == 'Track ID': # start of a new track, so a new object # is needed. self.itTrack = iTunesTrack() elif self.sTag == 'Name' and self.itTrack: self.itTrack.sTitle = self.sValue elif self.sTag == 'Artist' and self.itTrack: self.itTrack.sArtist = self.sValue elif self.sTag == 'Rating' and self.itTrack: self.itTrack.nRating = int(self.sValue) / 20 # assume this is all the data we need # so append the track object to our list # and reset our track object to None. self.lTracks.append(self.itTrack) self.itTrack = None class Entry: def __init__(self, sType): """ Class Entry Defines a Rhythmbox Library entry. sType: The type of the entry lData: A list of tuples, each of which contain a piece of data about an entry. For example, The Beatles is encoded as ('artist', 'The Beatles') The list is used instead of a dictionary to maintain the ordering of data. """ self.sType = sType self.lData = [] def addData(self, sName, sData): self.lData.append((sName, sData)) class RhythmBoxHandler(ContentHandler): def __init__(self, dSongs): ContentHandler.__init__(self) self.dSongs = dSongs self.fParsingTag = False self.sValue = '' self.sTitle = '' self.sArtist = '' self.entries = [] self.entry = None def startElement(self, sName, attributes): if sName == "entry": self.fParsingTag = True self.entry = Entry(attributes["type"]) self.sValue = '' def characters(self, sData): self.sValue += sData def endElement(self,sName): if sName == 'entry': self.fParsingTag = False self.sTitle = '' self.sArtist = '' if len(self.entry.lData) > 0: self.entries.append(self.entry) self.entry = None elif self.fParsingTag: if sName == 'title': self.sTitle = self.sValue elif sName == 'artist': self.sArtist = self.sValue elif sName == 'rating': sKey = "%s - %s" % (self.sArtist, self.sTitle) if self.dSongs.has_key(sKey): self.entry.addData('rating', str(self.dSongs[sKey])) else: self.entry.addData('rating', self.sValue) if sName != "rating": # We've already added rating self.entry.addData(sName, self.sValue) class RhythmDBWriter: def __init__(self, sFilesName, sEncoding): fOut = open(sFilesName, 'w') gen = XMLGenerator(fOut, sEncoding) gen.startDocument() self.gen = gen self.fOut = fOut attr_vals = {(None, u'version'): u'1.3',} attr_qsNames = {(None, u'version'): u'version',} xmlAttrs = AttributesNSImpl(attr_vals, attr_qsNames) self.gen.startElementNS((None, u'rhythmdb'), u'rhythmdb', xmlAttrs) self.fOut.write("\n") def writeEntry(self, entry): xmlAttrs = AttributesNSImpl({(None, u'type'): entry.sType,}, {(None, u'type'): u'type',}) self.fOut.write(" ") self.gen.startElementNS((None, u'entry'), u'entry', xmlAttrs) self.fOut.write("\n") xmlAttrs = AttributesNSImpl({}, {}) for p in entry.lData: self.fOut.write(" ") self.gen.startElementNS((None, p[0]), p[0], {}) self.gen.characters(p[1]) self.gen.endElementNS((None, p[0]), p[0]) self.fOut.write("\n") self.fOut.write(" ") self.gen.endElementNS((None, u'entry'), u'entry') self.fOut.write("\n") def close(self): self.gen.endElementNS((None, u'rhythmdb'), u'rhythmdb') self.gen.endDocument() try: self.fOut.write("\n") self.fOut.close() except: pass RHYTHMDB = '%s/.gnome2/rhythmbox/rhythmdb.xml' % (os.environ['HOME'],) USAGE = """Usage: %s iTunesLibraryFile [RhythmboxLibraryFile] %s copies your iTunes ratings into your Rythmbox library. To ensure nothing is lost, a backup of your Rhythmbox Library will be made. It is recommended that you quit Rhythmbox before running this script. Arguments: iTunesLibraryFile - This file is usually: {Music Folder}/iTunes/iTunes Music Library.xml RhythmboxLibraryFile [optional] - Usually found at: %s If this argument is not specified, the default location will be used instead.""" def main(argv): if argv == None: argv = sys.argv if len(argv) < 2 or len(argv) > 3 or argv[1][0] == '-': sScriptName = argv[0][argv[0].rfind('/')+1:] print USAGE % (sScriptName, sScriptName, RHYTHMDB) return siTunesFile = argv[1] if len(argv) == 3: sRhythmboxFile = argv[2] else: sRhythmboxFile = RHYTHMDB sRhythmboxBackup = sRhythmboxFile + ".bak" try: print "Backing up Rhythmbox Library" copyfile(sRhythmboxFile, sRhythmboxBackup) except: print "Could not back up Rhythmbox Library from %s to %s." % (sRhythmboxFile, sRhythmboxBackup) return try: print "Parsing iTunes" parser = make_parser() handler = ITunesHandler() parser.setContentHandler(handler) parser.parse(siTunesFile) except: print >> sys.stderr, "Could not parse iTunes file %s" % siTunesFile return try: print 'Populating Song Data' dSongs = {} for track in handler.lTracks: dSongs["%s - %s" % (track.sArtist, track.sTitle)] = track.nRating print 'Parsing Rhythmbox' rbParser = make_parser() rbHandler = RhythmBoxHandler(dSongs) rbParser.setContentHandler(rbHandler) rbParser.parse(sRhythmboxFile) except: print >> sys.stderr, "Could not parse Rhythmbox Library: %s" % sRhythmboxFile return try: print "Outputting Data" rdw = RhythmDBWriter(sRhythmboxFile, "utf-8") for song in rbHandler.entries: rdw.writeEntry(song) print "Done" except: rdw.fOut.close() print >> sys.stderr, "Failed to write new library. Restoring from backup..." try: copyfile(sRhythmboxBackup, sRhythmboxFile) except: print >> sys.stderr, "Could not automatically resore backup. Please manually restore from %s" % sRhythmboxBackup print >> sys.stderr, "Backup restored." finally: rdw.close() if __name__ == "__main__": main(sys.argv)