#!/usr/bin/env python """ --> Parse library and just do JSON adapted for Elasticsearch iTunes Graph Parser Parses an iTunes library XML file and generates a JSON file for use in the D3.js JavaScript library. Example Track info: { 'Album': 'Nirvana', 'Persistent ID': 'A50FE1436726815C', 'Track Number': 4, 'Location': 'file://localhost/Users/foo/Music/iTunes/iTunes%20Music/Nirvana/Nirvana/04%20Sliver.mp3', 'File Folder Count': 4, 'Album Rating Computed': True, 'Total Time': 134295, 'Sample Rate': 44100, 'Genre': 'Rock/Alternative', 'Bit Rate': 236, 'Kind': 'MPEG audio file', 'Name': 'Sliver', 'Artist': 'Nirvana', 'Date Added': datetime.datetime(2006, 10, 11, 4, 31, 38), 'Album Rating': 60, 'Rating': 40, 'Date Modified': datetime.datetime(2009, 7, 18, 4, 57, 41), 'Library Folder Count': 1, 'Year': 2002, 'Track ID': 7459, 'Size': 3972838, 'Track Type': 'File', 'Play Count': 2, 'Play Date UTC': datetime.datetime(2009, 7, 18, 5, 00, 00) } """ import datetime import io import json import os import plistlib import sys import argparse import hashlib class SetEncoder(json.JSONEncoder): def default(self, obj): if isinstance(obj, set): return list(obj) if isinstance(obj, datetime.datetime): return obj.isoformat() # encoded_object = int(mktime(obj.timetuple())) return json.JSONEncoder.default(self, obj) class ITunesParser: """ Parse an iTunes Library and produce JSON - for ELS """ def __init__(self, library_file): self._albums = {} self._artists = {} self.library_file = library_file def to_json(self): """ Just do processSong() or do process_songs, then _write_artists and _write_albums. Note: process_songs do a process_artists and process_albums... This method suck. """ ret = self._process_songs() self._write_artists() self._write_albums() # return json.dumps(jsonObj, indent=indent, cls=SetEncoder) return ret def _read_tracks(self): """ Read library and return Tracks part """ plist = plistlib.load(open(self.library_file, 'rb')) return plist['Tracks'] def _process_songs(self): """ Return an output JSON for an ELS Bulk request - Not a correct format This method call process_album & process_artist TODO Just return a _correct_ JSON and treat in another place/class """ tracks = self._read_tracks() ret = "" for k in tracks: track = tracks[k] # Filter out any non-music if track['Track Type'] != 'File': continue if 'Podcast' in track or 'Has Video' in track: continue persistent_id = track['Persistent ID'] json_track_index = { "index": {"_index": "itunessongs", "_type": "song", "_id": persistent_id} } # Retrieve for each track artist information self._process_artist(track) # Retrieve for each track album information self._process_album(track) ret += json.dumps(json_track_index, indent=None, cls=SetEncoder) ret += "\n" ret += json.dumps(track, indent=None, cls=SetEncoder) ret += "\n" return ret def _process_artist(self, track): """ Process artists in the track part of library and return a JSON formated for a bulk ELS request """ if 'Artist' not in track: return akey = track['Artist'] # Add artist if akey not in self._artists: a_id = self.calc_id(akey) self._artists[akey] = { 'Persistent ID': a_id, 'Name': akey, 'Track Count': 0, 'Play Count': 0, 'Rating': 0, 'Genre': set() } # Compute information rating = track['Rating'] if 'Rating' in track else 0 # TODO If no Rating, don't take 0 play_count = track['Play Count'] if 'Play Count' in track else 0 rating = self.calc_rating(rating, self._artists[akey]['Rating'], self._artists[akey]['Track Count']) self._artists[akey]['Track Count'] += 1 self._artists[akey]['Rating'] = rating self._artists[akey]['Play Count'] += play_count if 'Genre' not in track: return # Split up the Genres genre_parts = track['Genre'].split('/') self._artists[akey]['Genre'] |= set(genre_parts) return def _process_album(self, track): """ Process albums in the track part of library and return a JSON formated for a bulk ELS request """ if 'Album' not in track: return akey = track['Album'] if akey not in self._albums: a_id = self.calc_id(akey) self._albums[akey] = { 'Persistent ID': a_id, 'Name': akey, 'Track Count': 0, 'Play Count': 0, 'Rating': 0, 'Genre': set(), 'Artist': set() } # Compute information rating = track['Rating'] if 'Rating' in track else 0 # TODO Use Album Rating # TODO If no Rating, don't take 0 play_count = track['Play Count'] if 'Play Count' in track else 0 rating = self.calc_rating(rating, self._albums[akey]['Rating'], self._albums[akey]['Track Count']) self._albums[akey]['Track Count'] += 1 self._albums[akey]['Rating'] = rating self._albums[akey]['Play Count'] += play_count if 'Genre' not in track: return # Split up the Genres genre_parts = track['Genre'].split('/') self._albums[akey]['Genre'] |= set(genre_parts) ## Add different artists if 'Artist' not in track: return self._albums[akey]['Artist'].add(track['Artist']) return def _write_artists(self): """ Write artists data to another JSON file """ file_artist = io.open('es-artist-data.json', 'wb') for artist in self._artists: persistent_id = self._artists[artist]['Persistent ID'] self._artists[artist]['Rating'] = round(self._artists[artist]['Rating']) json_track_index = { "index": {"_index": "itunessongs", "_type": "artist", "_id": persistent_id} } file_artist.write(bytes(json.dumps(json_track_index, indent=None, cls=SetEncoder), 'UTF-8')) file_artist.write(bytes("\n", 'UTF-8')) file_artist.write(bytes(json.dumps(self._artists[artist], indent=None, cls=SetEncoder), 'UTF-8')) file_artist.write(bytes("\n", 'UTF-8')) file_artist.close() def _write_albums(self): """ Write albums data to another JSON file """ file_albums = io.open('es-albums-data.json', 'wb') for album in self._albums: persistent_id = self._albums[album]['Persistent ID'] self._albums[album]['Rating'] = round(self._albums[album]['Rating']) json_track_index = { "index": {"_index": "itunessongs", "_type": "album", "_id": persistent_id} } file_albums.write(bytes(json.dumps(json_track_index, indent=None, cls=SetEncoder), 'UTF-8')) file_albums.write(bytes("\n", 'UTF-8')) file_albums.write(bytes(json.dumps(self._albums[album], indent=None, cls=SetEncoder), 'UTF-8')) file_albums.write(bytes("\n", 'UTF-8')) file_albums.close() @classmethod def calc_rating(cls, added_value, current_rating, count): """ Calculate average rating from a current rating, a rating value to add and the number of elements """ return (current_rating * count + added_value) / (count + 1) @classmethod def calc_id(cls, key): """ Calculate a MD5 sum from a key as ID """ md5 = hashlib.md5() md5.update(key.encode('UTF-8')) return md5.hexdigest() #### main block #### # Default input & output files DEFAULT_LIBRARY_FILE_NAME = 'iTunesLibrary.xml' DEFAULT_OUTPUT_FILE_NAME = '/es-music-data.json' DEFAULT_LIBRARY_FILE = os.path.expanduser(DEFAULT_LIBRARY_FILE_NAME) DEFAULT_OUTPUT_FILE = os.path.dirname(os.path.realpath(__file__)) + DEFAULT_OUTPUT_FILE_NAME # Get options parser = argparse.ArgumentParser() parser.add_argument('-f', '--file', default=DEFAULT_LIBRARY_FILE, help='iTunes Library XML file path (default: ./' + DEFAULT_LIBRARY_FILE_NAME + ')') parser.add_argument('-o', '--output', default=DEFAULT_OUTPUT_FILE, help='Output to file (default: .' + DEFAULT_OUTPUT_FILE_NAME + ')') parser.add_argument('-c', '--console', action='store_true', help='Output to console instead of file') # parser.add_argument('-v', '--verbose', action='store_true', # help='Verbose output') if __name__ == '__main__': args = parser.parse_args() itunes_parser = ITunesParser(args.file) output = itunes_parser.to_json() if args.console: print(output) else: with io.open(args.output, 'wb') as outfile: if sys.version_info.major == 2: outfile.write(bytes(output)) elif sys.version_info.major == 3: outfile.write(bytes(output, 'UTF-8')) print('JSON data written to: ' + args.output)