def make_filename(self, current_filename, title, sortdate, podcast_title): dirname = os.path.dirname(current_filename) filename = os.path.basename(current_filename) basename, ext = os.path.splitext(filename) new_basename = [] new_basename.append(title) if self.config.add_podcast_title: new_basename.insert(0, podcast_title) if self.config.add_sortdate: new_basename.insert(0, sortdate) new_basename = ' - '.join(new_basename) # Remove unwanted characters and shorten filename (#494) # Also sanitize ext (see #591 where ext=.mp3?dest-id=754182) new_basename, ext = util.sanitize_filename_ext( new_basename, ext, PodcastEpisode.MAX_FILENAME_LENGTH, PodcastEpisode.MAX_FILENAME_WITH_EXT_LENGTH) new_filename = os.path.join(dirname, new_basename + ext) if new_filename == current_filename: return current_filename for filename in util.generate_names(new_filename): # Avoid filename collisions if not os.path.exists(filename): return filename
def make_filename(self, current_filename, title, sortdate, podcast_title): dirname = os.path.dirname(current_filename) filename = os.path.basename(current_filename) basename, ext = os.path.splitext(filename) new_basename = [] new_basename.append(title) if self.config.add_podcast_title: new_basename.insert(0, podcast_title) if self.config.add_sortdate: new_basename.insert(0, sortdate) new_basename = ' - '.join(new_basename) # Remove unwanted characters and shorten filename (#494) # Also sanitize ext (see #591 where ext=.mp3?dest-id=754182) new_basename, ext = util.sanitize_filename_ext( new_basename, ext, PodcastEpisode.MAX_FILENAME_LENGTH, PodcastEpisode.MAX_FILENAME_WITH_EXT_LENGTH) new_filename = os.path.join(dirname, new_basename + '.' + ext) if new_filename == current_filename: return current_filename for filename in util.generate_names(new_filename): # Avoid filename collisions if not os.path.exists(filename): return filename
def local_filename(self, create, force_update=False, check_only=False, template=None, return_wanted_filename=False): """Get (and possibly generate) the local saving filename Pass create=True if you want this function to generate a new filename if none exists. You only want to do this when planning to create/download the file after calling this function. Normally, you should pass create=False. This will only create a filename when the file already exists from a previous version of gPodder (where we used md5 filenames). If the file does not exist (and the filename also does not exist), this function will return None. If you pass force_update=True to this function, it will try to find a new (better) filename and move the current file if this is the case. This is useful if (during the download) you get more information about the file, e.g. the mimetype and you want to include this information in the file name generation process. If check_only=True is passed to this function, it will never try to rename the file, even if would be a good idea. Use this if you only want to check if a file exists. If "template" is specified, it should be a filename that is to be used as a template for generating the "real" filename. The generated filename is stored in the database for future access. If return_wanted_filename is True, the filename will not be written to the database, but simply returned by this function (for use by the "import external downloads" feature). """ if self.download_filename is None and (check_only or not create): return None ext = self.extension(may_call_local_filename=False) if not check_only and (force_update or not self.download_filename): # Avoid and catch gPodder bug 1440 and similar situations if template == '': logger.warn('Empty template. Report this podcast URL %s', self.channel.url) template = None # Try to find a new filename for the current file if template is not None: # If template is specified, trust the template's extension episode_filename, ext = os.path.splitext(template) else: episode_filename, _ = util.filename_from_url(self.url) if 'redirect' in episode_filename and template is None: # This looks like a redirection URL - force URL resolving! logger.warn('Looks like a redirection to me: %s', self.url) url = util.get_real_url(self.channel.authenticate_url( self.url)) logger.info('Redirection resolved to: %s', url) episode_filename, _ = util.filename_from_url(url) # Use title for YouTube, Vimeo and Soundcloud downloads if (youtube.is_video_link(self.url) or vimeo.is_video_link(self.url) or escapist_videos.is_video_link(self.url) or episode_filename == 'stream'): episode_filename = self.title # If the basename is empty, use the md5 hexdigest of the URL if not episode_filename or episode_filename.startswith( 'redirect.'): logger.error('Report this feed: Podcast %s, episode %s', self.channel.url, self.url) episode_filename = hashlib.md5( self.url.encode('utf-8')).hexdigest() # Also sanitize ext (see #591 where ext=.mp3?dest-id=754182) fn_template, ext = util.sanitize_filename_ext( episode_filename, ext, self.MAX_FILENAME_LENGTH, self.MAX_FILENAME_WITH_EXT_LENGTH) ext = '.' + ext # Find a unique filename for this episode wanted_filename = self.find_unique_file_name(fn_template, ext) if return_wanted_filename: # return the calculated filename without updating the database return wanted_filename # The old file exists, but we have decided to want a different filename if self.download_filename and wanted_filename != self.download_filename: # there might be an old download folder crawling around - move it! new_file_name = os.path.join(self.channel.save_dir, wanted_filename) old_file_name = os.path.join(self.channel.save_dir, self.download_filename) if os.path.exists( old_file_name) and not os.path.exists(new_file_name): logger.info('Renaming %s => %s', old_file_name, new_file_name) os.rename(old_file_name, new_file_name) elif force_update and not os.path.exists(old_file_name): # When we call force_update, the file might not yet exist when we # call it from the downloading code before saving the file logger.info('Choosing new filename: %s', new_file_name) else: logger.warn('%s exists or %s does not', new_file_name, old_file_name) logger.info('Updating filename of %s to "%s".', self.url, wanted_filename) elif self.download_filename is None: logger.info('Setting download filename: %s', wanted_filename) self.download_filename = wanted_filename self.save() if return_wanted_filename: # return the filename, not full path return self.download_filename return os.path.join(self.channel.save_dir, self.download_filename)
def local_filename(self, create, force_update=False, check_only=False, template=None, return_wanted_filename=False): """Get (and possibly generate) the local saving filename Pass create=True if you want this function to generate a new filename if none exists. You only want to do this when planning to create/download the file after calling this function. Normally, you should pass create=False. This will only create a filename when the file already exists from a previous version of gPodder (where we used md5 filenames). If the file does not exist (and the filename also does not exist), this function will return None. If you pass force_update=True to this function, it will try to find a new (better) filename and move the current file if this is the case. This is useful if (during the download) you get more information about the file, e.g. the mimetype and you want to include this information in the file name generation process. If check_only=True is passed to this function, it will never try to rename the file, even if would be a good idea. Use this if you only want to check if a file exists. If "template" is specified, it should be a filename that is to be used as a template for generating the "real" filename. The generated filename is stored in the database for future access. If return_wanted_filename is True, the filename will not be written to the database, but simply returned by this function (for use by the "import external downloads" feature). """ if self.download_filename is None and (check_only or not create): return None ext = self.extension(may_call_local_filename=False) if not check_only and (force_update or not self.download_filename): # Avoid and catch gPodder bug 1440 and similar situations if template == '': logger.warn('Empty template. Report this podcast URL %s', self.channel.url) template = None # Try to find a new filename for the current file if template is not None: # If template is specified, trust the template's extension episode_filename, ext = os.path.splitext(template) else: episode_filename, _ = util.filename_from_url(self.url) if 'redirect' in episode_filename and template is None: # This looks like a redirection URL - force URL resolving! logger.warn('Looks like a redirection to me: %s', self.url) url = util.get_real_url(self.channel.authenticate_url(self.url)) logger.info('Redirection resolved to: %s', url) episode_filename, _ = util.filename_from_url(url) # Use title for YouTube, Vimeo and Soundcloud downloads if (youtube.is_video_link(self.url) or vimeo.is_video_link(self.url) or escapist_videos.is_video_link(self.url) or episode_filename == 'stream'): episode_filename = self.title # If the basename is empty, use the md5 hexdigest of the URL if not episode_filename or episode_filename.startswith('redirect.'): logger.error('Report this feed: Podcast %s, episode %s', self.channel.url, self.url) episode_filename = hashlib.md5(self.url.encode('utf-8')).hexdigest() # Also sanitize ext (see #591 where ext=.mp3?dest-id=754182) fn_template, ext = util.sanitize_filename_ext( episode_filename, ext, self.MAX_FILENAME_LENGTH, self.MAX_FILENAME_WITH_EXT_LENGTH) ext = '.' + ext # Find a unique filename for this episode wanted_filename = self.find_unique_file_name(fn_template, ext) if return_wanted_filename: # return the calculated filename without updating the database return wanted_filename # The old file exists, but we have decided to want a different filename if self.download_filename and wanted_filename != self.download_filename: # there might be an old download folder crawling around - move it! new_file_name = os.path.join(self.channel.save_dir, wanted_filename) old_file_name = os.path.join(self.channel.save_dir, self.download_filename) if os.path.exists(old_file_name) and not os.path.exists(new_file_name): logger.info('Renaming %s => %s', old_file_name, new_file_name) os.rename(old_file_name, new_file_name) elif force_update and not os.path.exists(old_file_name): # When we call force_update, the file might not yet exist when we # call it from the downloading code before saving the file logger.info('Choosing new filename: %s', new_file_name) else: logger.warn('%s exists or %s does not', new_file_name, old_file_name) logger.info('Updating filename of %s to "%s".', self.url, wanted_filename) elif self.download_filename is None: logger.info('Setting download filename: %s', wanted_filename) self.download_filename = wanted_filename self.save() if return_wanted_filename: # return the filename, not full path return self.download_filename return os.path.join(self.channel.save_dir, self.download_filename)