manage.py * setup - Interactive prompt - First, obtain an API key and enter it (or use the default one lol), will save in settings.yaml - Either give it a directory containing your MP3s, or ignore and just use a default catalog - If you choose to give it a directory, it will run personal_catalog_scanner.py, create a catalog with your music, and upload it, then save that catalog ID in settings.yaml - Then, will add a playlist containing 5 random songs from http://developer.echonest.com/api/v4/playlist/static?api_key=N6E4NIOVYMTHNDM8J&seed_catalog=CAFAHCC1329DCB5C35&format=json&results=5&type=catalog-radio&adventurousness=0.8&variety=0.8 (settings can be toggled etc) * add - add a playlist * delete - delete a playlist * info - tells you about your playlists echocrypt.py * encrypt - pass it a message (args[1]) and it will output that message plus a random keystream to stdout * decrypt - pass it a message (args[1]) and it will output that message minus the relevant keystream (indicated by the first couple of bytes) to stdout lib/ utils.py * bin_from_float(num): - given a float, turn it into a [finite] sequence of bits * generate_keystreams(catalog): - add together all the strings, return 4 combined "bit sequences" echonest.py * get_catalog_tracks(catalog): - give it a catalog ID, will get 4 songs from that catalog * get_track_data(track): - will return: a list of lists of floats personal_catalog_scanner.py settings.py tests/ test_utils.py * test_bin_from_float(self): - leading 0s (but not trailing 0s) should be removed, as well as the decimal point - ex: 0.015 --> bin(15) 1111, 13.41 --> bin(1341) --> 10100111101 - 0.0 --> 0 test_echonest.py data/ settings.yaml * api_key * catalog_id db.sqlite * keystreams * id (int) - each playlist generates 4 keystreams but it doesn't matter which playlist a keystream is from * keystream (binary?) - 010101010010 etc