stov/lib_stov/generic_video.py

#
#   This file is part of stov, written by Helmut Pozimski 2012-2015.
#
#   stov is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, version 2 of the License.
#
#   stov is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with stov.  If not, see <http://www.gnu.org/licenses/>.


# -*- coding: utf8 -*-

"""This module takes care of managing and downloading single videos."""

import os
import logging

from lib_stov import stov_exceptions
from lib_stov import youtubedl_wrapper
from lib_stov import configuration

LOGGER = logging.getLogger("stov")


class Video(object):
    """This class stores all the attributes of a single video and is
    also able to download it using youtube-dl.
    """
    def __init__(self, title, site_id, downloaded, failcount=0, video_id=0):
        self._id = video_id
        self.title = title
        self.site_id = site_id
        self._conf = configuration.Conf.get_instance()
        self.downloaded = downloaded
        self.failcnt = int(failcount)

    def download_video(self, directory, itag_value, url):
        """
        Downloads the video by calling youtube-dl as an external process"

        :param directory: directory to download to
        :type directory: str
        :param itag_value: quality specifier
        :type itag_value: int
        :param video_codec: video codec to download
        :type video_codec: str
        :param url: url to the video
        :type url: str
        :return: boolean value
        :rtype: bool
        """
        targetdir = self._conf.values["downloaddir"] + "/" + directory
        if not os.access(targetdir, os.F_OK):
            try:
                LOGGER.debug(_("Creating directory %s"), targetdir)
                os.makedirs(targetdir, 0o750)
            except os.error:
                raise stov_exceptions.DirectoryCreationFailedException()

        os.chdir(targetdir)
        if self.downloaded == 0:
            try:
                youtubedl_wrapper.download_video(url, itag_value)
            except stov_exceptions.YoutubeDlCallFailed:
                self.failcnt = int(self.failcnt) + 1
                return False
            else:
                self.downloaded = 1
                return True
        return False

    def get_id(self):
        """Resturns the id attribute assigned to the object."""
        return self._id