def close(self):
"""Close and store outstanding changes"""
with self.save_lock:
with util.update_file_safely(self.filename) as filename:
with gzip.open(filename, 'wb') as fp:
data = bytes(json.dumps(self._data, separators=(',', ':')), 'utf-8')
fp.write(data)
def get_cover(self, podcast, download=False):
filename = podcast.cover_file
cover_url = podcast.cover_url
# Return already existing files
for extension in self.EXTENSIONS:
if os.path.exists(filename + extension):
return filename + extension
# If allowed to download files, do so here
if download:
# YouTube-specific cover art image resolver
youtube_cover_url = youtube.get_real_cover(podcast.url)
if youtube_cover_url is not None:
cover_url = youtube_cover_url
if not cover_url:
return None
# We have to add username/password, because password-protected
# feeds might keep their cover art also protected (bug 1521)
cover_url = util.url_add_authentication(cover_url, podcast.auth_username,
podcast.auth_password)
try:
logger.info('Downloading cover art: %s', cover_url)
data = util.urlopen(cover_url, timeout=self.TIMEOUT).read()
except Exception as e:
logger.warn('Cover art download failed: %s', e)
return None
try:
extension = None
for filetype, check in list(self.SUPPORTED_EXTENSIONS.items()):
if check(data):
extension = filetype
break
if extension is None:
msg = 'Unknown file type: %s (%r)' % (cover_url, data[:6])
raise ValueError(msg)
# Successfully downloaded the cover art - save it!
with util.update_file_safely(filename + extension) as temp_filename:
with open(temp_filename, 'wb') as fp:
fp.write(data)
return filename + extension
except Exception as e:
logger.warn('Cannot save cover art', exc_info=True)
return None
def get_cover(self, podcast, download=False):
filename = podcast.cover_file
cover_url = podcast.cover_url
# Return already existing files
for extension in self.EXTENSIONS:
if os.path.exists(filename + extension):
return filename + extension
# If allowed to download files, do so here
if download:
cover_url = registry.cover_art.resolve(podcast, cover_url)
if not cover_url:
return None
# We have to add username/password, because password-protected
# feeds might keep their cover art also protected (bug 1521)
cover_url = util.url_add_authentication(cover_url,
podcast.auth_username,
podcast.auth_password)
try:
logger.info('Downloading cover art: %s', cover_url)
data = util.urlopen(cover_url, timeout=self.TIMEOUT).read()
except Exception as e:
logger.warn('Cover art download failed: %s', e)
return None
try:
extension = None
for filetype, check in list(self.SUPPORTED_EXTENSIONS.items()):
if check(data):
extension = filetype
break
if extension is None:
msg = 'Unknown file type: %s (%r)' % (cover_url, data[:6])
raise ValueError(msg)
# Successfully downloaded the cover art - save it!
with util.update_file_safely(filename +
extension) as temp_filename:
with open(temp_filename, 'wb') as fp:
fp.write(data)
return filename + extension
except Exception as e:
logger.warn('Cannot save cover art', exc_info=True)
return None
def save(self, filename=None):
if filename is None:
filename = self.__filename
logger.info('Flushing settings to disk')
try:
with util.update_file_safely(filename) as temp_filename:
with open(temp_filename, 'wt') as fp:
fp.write(repr(self.__json_config))
except Exception as e:
logger.error('Cannot write settings to %s: %s', filename, e)
raise
self.__save_thread = None
def save(self, filename=None):
if filename is None:
filename = self.__filename
logger.info('Flushing settings to disk')
try:
with util.update_file_safely(filename) as temp_filename:
with open(temp_filename, 'wt') as fp:
fp.write(repr(self.__json_config))
except Exception as e:
logger.error('Cannot write settings to %s: %s', filename, e)
raise
self.__save_thread = None
def write(self, channels):
"""
Creates a XML document containing metadata for each
channel object in the "channels" parameter, which
should be a list of channel objects.
OPML 2.0 specification: http://www.opml.org/spec2
Returns True on success or False when there was an
error writing the file.
"""
doc = xml.dom.minidom.Document()
opml = doc.createElement('opml')
opml.setAttribute('version', '2.0')
doc.appendChild(opml)
head = doc.createElement('head')
head.appendChild(
self.create_node(doc, 'title', 'gPodder subscriptions'))
head.appendChild(
self.create_node(doc, 'dateCreated', formatdate(localtime=True)))
opml.appendChild(head)
body = doc.createElement('body')
for channel in channels:
body.appendChild(self.create_outline(doc, channel))
opml.appendChild(body)
if self.filename is None:
return doc.toprettyxml(indent=' ', newl=os.linesep)
else:
try:
with util.update_file_safely(self.filename) as temp_filename:
with open(temp_filename, 'w') as fp:
fp.write(doc.toprettyxml(indent=' ', newl=os.linesep))
except:
logger.error('Could not open file for writing: %s',
self.filename,
exc_info=True)
return False
return True
def write(self, channels):
"""
Creates a XML document containing metadata for each
channel object in the "channels" parameter, which
should be a list of channel objects.
OPML 2.0 specification: http://www.opml.org/spec2
Returns True on success or False when there was an
error writing the file.
"""
doc = xml.dom.minidom.Document()
opml = doc.createElement('opml')
opml.setAttribute('version', '2.0')
doc.appendChild(opml)
head = doc.createElement('head')
head.appendChild(self.create_node(doc, 'title', 'gPodder subscriptions'))
head.appendChild(self.create_node(doc, 'dateCreated', formatdate(localtime=True)))
opml.appendChild(head)
body = doc.createElement('body')
for channel in channels:
body.appendChild(self.create_outline(doc, channel))
opml.appendChild(body)
if self.filename is None:
return doc.toprettyxml(indent=' ', newl=os.linesep)
else:
try:
with util.update_file_safely(self.filename) as temp_filename:
with open(temp_filename, 'w') as fp:
fp.write(doc.toprettyxml(indent=' ', newl=os.linesep))
except:
logger.error('Could not open file for writing: %s', self.filename, exc_info=True)
return False
return True
