class ShoutcastFeed:
def __init__(self,
genre,
min_bitrate=128,
cache_ttl=600,
cache_dir='/tmp/pyshout_cache'):
"""
Parses the xml feed and spits out a list of dictionaries with the station info
keyed by genre. Params are as follows:
min_bitrate - 128 default, Minimum bitrate filter
cache_ttl - 600 default, 0 disables, Seconds cache is considered valid
cache_dir - /tmp/pyshout_cache default, Path to cache directory
"""
self.min_bitrate = min_bitrate
self.cache_ttl = cache_ttl
self.genre = genre
self.cache_file = cache_dir + '/' + self.genre + '.pickle'
self.station_list = []
def fetch_stations(self):
"""
Grabs the xml list of stations from the shoutcast server
"""
self.shout_url = 'http://www.shoutcast.com/sbin/newxml.phtml?genre=' + self.genre
self.urlhandler = FancyURLopener()
self.fd = self.urlhandler.open(self.shout_url)
self.stations = self.fd.read()
self.fd.close()
return self.stations
def parse_stations(self):
ct = None
if self.cache_ttl:
ct = cacheTime(self.cache_file)
if ct:
try:
self.station_list = load_cache(self.cache_file)
except:
print("Failed to load cache.")
if not ct or (time.time() - ct) > self.cache_ttl:
try:
parseXML = StationParser(self.min_bitrate)
self.stations = self.fetch_stations()
parseString(self.stations, parseXML)
self.station_list = parseXML.station_list
write_cache(self.cache_file, self.station_list)
except:
print("Failed to get a new station list, sorry.")
return self.station_list
class GenreFeed:
def __init__(self, cache_ttl=3600, cache_dir='/tmp/pyshout_cache'):
self.cache_ttl = cache_ttl
self.cache_file = cache_dir + '/genres.cache'
self.genre_list = [
'Sorry, failed to load', '...try again later', 'Rock', 'Pop',
'Alternative'
]
def fetch_genres(self):
"""
Grabs genres and returns tuple of genres
"""
self.genre_url = 'http://www.shoutcast.com/sbin/newxml.phtml'
self.urlhandler = FancyURLopener()
self.fd = self.urlhandler.open(self.genre_url)
self.genre = self.fd.read()
self.fd.close()
return self.genre
def parse_genres(self):
ct = None
if self.cache_ttl:
ct = cacheTime(self.cache_file)
try:
self.genre_list = load_cache(self.cache_file)
except:
ct = None
if not ct or (time.time() - ct) > self.cache_ttl:
if DEBUG == 1:
print('Getting fresh feed')
try:
parseXML = GenreParse()
self.genres = self.fetch_genres()
parseString(self.genres, parseXML)
self.genre_list = parseXML.genreList
write_cache(self.cache_file, self.genre_list)
except:
print("Failed to get genres from server, sorry.")
return self.genre_list
