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 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 __install_grinder(self, grinder_path):
"""
Installs Grinder.
Grinder version and download link may be set in config:
"download-link":"http://domain/resource-{version}.zip"
"version":"1.2.3"
"""
dest = os.path.dirname(
os.path.dirname(os.path.expanduser(grinder_path)))
if not dest:
dest = os.path.expanduser("~/grinder-taurus")
dest = os.path.abspath(dest)
grinder_full_path = os.path.join(dest, "lib", "grinder.jar")
try:
self.__grinder(grinder_full_path)
return grinder_full_path
except CalledProcessError:
self.log.info("Will try to install grinder into %s", dest)
downloader = FancyURLopener()
grinder_zip_path = self.engine.create_artifact("grinder-dist", ".zip")
version = self.settings.get("version", GrinderExecutor.VERSION)
download_link = self.settings.get("download-link",
GrinderExecutor.DOWNLOAD_LINK)
download_link = download_link.format(version=version)
self.log.info("Downloading %s", download_link)
try:
downloader.retrieve(download_link, grinder_zip_path,
download_progress_hook)
except BaseException as exc:
self.log.error("Error while downloading %s", download_link)
raise exc
self.log.info("Unzipping %s", grinder_zip_path)
unzip(grinder_zip_path, dest, 'grinder-' + version)
os.remove(grinder_zip_path)
self.log.info("Installed grinder successfully")
return grinder_full_path
def __install_gatling(self, gatling_path):
"""
Installs Gatling.
Gatling version and download link may be set in config:
"download-link":"http://domain/resource-{version}.zip"
"version":"1.2.3"
"""
dest = os.path.dirname(
os.path.dirname(os.path.expanduser(gatling_path))) # ../..
dest = os.path.abspath(dest)
try:
self.__gatling(gatling_path)
return gatling_path
except OSError:
self.log.info("Will try to install Gatling into %s", dest)
# download gatling
downloader = FancyURLopener()
gatling_zip_path = self.engine.create_artifact("gatling-dist", ".zip")
version = self.settings.get("version", GatlingExecutor.VERSION)
download_link = self.settings.get("download-link",
GatlingExecutor.DOWNLOAD_LINK)
download_link = download_link.format(version=version)
self.log.info("Downloading %s", download_link)
# TODO: check archive checksum/hash before unzip and run
try:
downloader.retrieve(download_link, gatling_zip_path,
download_progress_hook)
except BaseException as exc:
self.log.error("Error while downloading %s", download_link)
raise exc
self.log.info("Unzipping %s", gatling_zip_path)
unzip(gatling_zip_path, dest,
'gatling-charts-highcharts-bundle-' + version)
os.remove(gatling_zip_path)
os.chmod(os.path.expanduser(gatling_path), 0o755)
self.log.info("Installed Gatling successfully")
def get_file(url, destination_dir, fname):
if not os.path.exists(destination_dir):
os.makedirs(destination_dir)
file_dest = os.path.join(destination_dir, fname)
try:
f = open(file_dest)
except:
print('Downloading data from', url)
FancyURLopener().retrieve(url, file_dest)
return file_dest
def __install_grinder(self, grinder_path):
"""
Installs Grinder.
Grinder version and download link may be set in config:
"download-link":"http://domain/resource-{version}.zip"
"version":"1.2.3"
"""
dest = os.path.dirname(os.path.dirname(os.path.expanduser(grinder_path)))
if not dest:
dest = os.path.expanduser("~/grinder-taurus")
dest = os.path.abspath(dest)
grinder_full_path = os.path.join(dest, "lib", "grinder.jar")
try:
self.__grinder(grinder_full_path)
return grinder_full_path
except CalledProcessError:
self.log.info("Will try to install grinder into %s", dest)
downloader = FancyURLopener()
grinder_zip_path = self.engine.create_artifact("grinder-dist", ".zip")
version = self.settings.get("version", GrinderExecutor.VERSION)
download_link = self.settings.get("download-link", GrinderExecutor.DOWNLOAD_LINK)
download_link = download_link.format(version=version)
self.log.info("Downloading %s", download_link)
try:
downloader.retrieve(download_link, grinder_zip_path, download_progress_hook)
except BaseException as exc:
self.log.error("Error while downloading %s", download_link)
raise exc
self.log.info("Unzipping %s", grinder_zip_path)
unzip(grinder_zip_path, dest, 'grinder-' + version)
os.remove(grinder_zip_path)
self.log.info("Installed grinder successfully")
return grinder_full_path
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
def __install_gatling(self, gatling_path):
"""
Installs Gatling.
Gatling version and download link may be set in config:
"download-link":"http://domain/resource-{version}.zip"
"version":"1.2.3"
"""
dest = os.path.dirname(os.path.dirname(os.path.expanduser(gatling_path))) # ../..
dest = os.path.abspath(dest)
try:
self.__gatling(gatling_path)
return gatling_path
except OSError:
self.log.info("Will try to install Gatling into %s", dest)
# download gatling
downloader = FancyURLopener()
gatling_zip_path = self.engine.create_artifact("gatling-dist", ".zip")
version = self.settings.get("version", GatlingExecutor.VERSION)
download_link = self.settings.get("download-link", GatlingExecutor.DOWNLOAD_LINK)
download_link = download_link.format(version=version)
self.log.info("Downloading %s", download_link)
# TODO: check archive checksum/hash before unzip and run
try:
downloader.retrieve(download_link, gatling_zip_path, download_progress_hook)
except BaseException as exc:
self.log.error("Error while downloading %s", download_link)
raise exc
self.log.info("Unzipping %s", gatling_zip_path)
unzip(gatling_zip_path, dest, 'gatling-charts-highcharts-bundle-' + version)
os.remove(gatling_zip_path)
os.chmod(os.path.expanduser(gatling_path), 0o755)
self.log.info("Installed Gatling successfully")
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
