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367 lines
9.1 KiB
367 lines
9.1 KiB
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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"""Youtubedlg module that contains util functions.
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Attributes:
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_RANDOM_OBJECT (object): Object that it's used as a default parameter.
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YOUTUBEDL_BIN (string): Youtube-dl binary filename.
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"""
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from __future__ import unicode_literals
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import os
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import sys
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import json
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import math
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import locale
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import subprocess
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try:
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from twodict import TwoWayOrderedDict
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except ImportError as error:
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print error
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sys.exit(1)
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from .info import __appname__
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from .version import __version__
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_RANDOM_OBJECT = object()
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YOUTUBEDL_BIN = 'youtube-dl'
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if os.name == 'nt':
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YOUTUBEDL_BIN += '.exe'
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FILESIZE_METRICS = ["B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"]
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KILO_SIZE = 1024.0
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def get_encoding():
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"""Return system encoding. """
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try:
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encoding = locale.getpreferredencoding()
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'TEST'.encode(encoding)
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except:
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encoding = 'UTF-8'
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return encoding
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def convert_on_bounds(func):
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"""Decorator to convert string inputs & outputs.
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Covert string inputs & outputs between 'str' and 'unicode' at the
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application bounds using the preferred system encoding. It will convert
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all the string params (args, kwargs) to 'str' type and all the
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returned strings values back to 'unicode'.
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"""
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def convert_item(item, to_unicode=False):
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"""The actual function which handles the conversion.
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Args:
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item (-): Can be any python item.
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to_unicode (boolean): When True it will convert all the 'str' types
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to 'unicode'. When False it will convert all the 'unicode'
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types back to 'str'.
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"""
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if to_unicode and isinstance(item, str):
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# Convert str to unicode
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return item.decode(get_encoding(), 'ignore')
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if not to_unicode and isinstance(item, unicode):
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# Convert unicode to str
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return item.encode(get_encoding(), 'ignore')
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if hasattr(item, '__iter__'):
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# Handle iterables
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temp_list = []
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for sub_item in item:
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if isinstance(item, dict):
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temp_list.append((sub_item, convert_item(item[sub_item])))
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else:
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temp_list.append(convert_item(sub_item))
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return type(item)(temp_list)
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return item
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def wrapper(*args, **kwargs):
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returned_value = func(*convert_item(args), **convert_item(kwargs))
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return convert_item(returned_value, True)
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return wrapper
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# See: https://github.com/MrS0m30n3/youtube-dl-gui/issues/57
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# Patch os functions to convert between 'str' and 'unicode' on app bounds
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os_sep = unicode(os.sep)
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os_getenv = convert_on_bounds(os.getenv)
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os_makedirs = convert_on_bounds(os.makedirs)
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os_path_isdir = convert_on_bounds(os.path.isdir)
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os_path_exists = convert_on_bounds(os.path.exists)
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os_path_dirname = convert_on_bounds(os.path.dirname)
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os_path_abspath = convert_on_bounds(os.path.abspath)
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os_path_realpath = convert_on_bounds(os.path.realpath)
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os_path_expanduser = convert_on_bounds(os.path.expanduser)
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# Patch Windows specific functions
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if os.name == 'nt':
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os_startfile = convert_on_bounds(os.startfile)
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def remove_file(filename):
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if os_path_exists(filename):
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os.remove(filename)
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return True
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return False
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def remove_shortcuts(path):
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"""Return given path after removing the shortcuts. """
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return path.replace('~', os_path_expanduser('~'))
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def absolute_path(filename):
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"""Return absolute path to the given file. """
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return os_path_dirname(os_path_realpath(os_path_abspath(filename)))
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def open_file(file_path):
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"""Open file in file_path using the default OS application.
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Returns:
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True on success else False.
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"""
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file_path = remove_shortcuts(file_path)
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if not os_path_exists(file_path):
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return False
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if os.name == "nt":
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os_startfile(file_path)
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else:
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subprocess.call(("xdg-open", file_path))
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return True
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def encode_tuple(tuple_to_encode):
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"""Turn size tuple into string. """
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return '%s/%s' % (tuple_to_encode[0], tuple_to_encode[1])
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def decode_tuple(encoded_tuple):
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"""Turn tuple string back to tuple. """
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s = encoded_tuple.split('/')
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return int(s[0]), int(s[1])
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def check_path(path):
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"""Create path if not exist. """
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if not os_path_exists(path):
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os_makedirs(path)
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def get_config_path():
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"""Return user config path.
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Note:
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Windows = %AppData% + app_name
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Linux = ~/.config + app_name
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"""
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if os.name == 'nt':
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path = os_getenv('APPDATA')
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else:
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path = os.path.join(os_path_expanduser('~'), '.config')
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return os.path.join(path, __appname__.lower())
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def shutdown_sys(password=None):
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"""Shuts down the system.
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Returns True if no errors occur else False.
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Args:
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password (string): SUDO password for linux.
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Note:
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On Linux you need to provide sudo password if you don't
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have elevated privileges.
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"""
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_stderr = subprocess.PIPE
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_stdin = None
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info = None
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encoding = get_encoding()
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if os.name == 'nt':
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cmd = ['shutdown', '/s', '/t', '1']
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# Hide subprocess window
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info = subprocess.STARTUPINFO()
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info.dwFlags |= subprocess.STARTF_USESHOWWINDOW
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else:
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if password:
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_stdin = subprocess.PIPE
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password = ('%s\n' % password).encode(encoding)
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cmd = ['sudo', '-S', '/sbin/shutdown', '-h', 'now']
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else:
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cmd = ['/sbin/shutdown', '-h', 'now']
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cmd = [item.encode(encoding, 'ignore') for item in cmd]
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shutdown_proc = subprocess.Popen(cmd,
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stderr=_stderr,
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stdin=_stdin,
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startupinfo=info)
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output = shutdown_proc.communicate(password)[1]
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return not output or output == "Password:"
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def to_string(data):
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"""Convert data to string.
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Works for both Python2 & Python3. """
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return '%s' % data
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def get_time(seconds):
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"""Convert given seconds to days, hours, minutes and seconds.
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Args:
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seconds (float): Time in seconds.
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Returns:
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Dictionary that contains the corresponding days, hours, minutes
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and seconds of the given seconds.
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"""
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dtime = dict(seconds=0, minutes=0, hours=0, days=0)
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dtime['days'] = int(seconds / 86400)
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dtime['hours'] = int(seconds % 86400 / 3600)
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dtime['minutes'] = int(seconds % 86400 % 3600 / 60)
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dtime['seconds'] = int(seconds % 86400 % 3600 % 60)
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return dtime
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def get_locale_file():
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"""Search for youtube-dlg locale file.
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Returns:
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The path to youtube-dlg locale file if exists else None.
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Note:
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Paths that get_locale_file() func searches.
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__main__ dir, library dir
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"""
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DIR_NAME = "locale"
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SEARCH_DIRS = [
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os.path.join(absolute_path(sys.argv[0]), DIR_NAME),
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os.path.join(os_path_dirname(__file__), DIR_NAME),
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]
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for directory in SEARCH_DIRS:
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if os_path_isdir(directory):
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return directory
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return None
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def get_icon_file():
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"""Search for youtube-dlg app icon.
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Returns:
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The path to youtube-dlg icon file if exists, else returns None.
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"""
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ICON_NAME = "youtube-dl-gui.png"
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pixmaps_dir = get_pixmaps_dir()
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if pixmaps_dir is not None:
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icon_file = os.path.join(pixmaps_dir, ICON_NAME)
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if os_path_exists(icon_file):
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return icon_file
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return None
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def get_pixmaps_dir():
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"""Return absolute path to the pixmaps icons folder.
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Note:
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Paths we search: __main__ dir, library dir
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"""
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search_dirs = [
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os.path.join(absolute_path(sys.argv[0]), "data"),
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os.path.join(os_path_dirname(__file__), "data")
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]
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for directory in search_dirs:
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pixmaps_dir = os.path.join(directory, "pixmaps")
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if os_path_exists(pixmaps_dir):
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return pixmaps_dir
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return None
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def to_bytes(string):
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"""Convert given youtube-dl size string to bytes."""
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value = 0.0
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for index, metric in enumerate(reversed(FILESIZE_METRICS)):
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if metric in string:
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value = float(string.split(metric)[0])
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break
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exponent = index * (-1) + (len(FILESIZE_METRICS) - 1)
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return round(value * (KILO_SIZE ** exponent), 2)
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def format_bytes(bytes):
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"""Format bytes to youtube-dl size output strings."""
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if bytes == 0.0:
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exponent = 0
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else:
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exponent = int(math.log(bytes, KILO_SIZE))
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suffix = FILESIZE_METRICS[exponent]
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output_value = bytes / (KILO_SIZE ** exponent)
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return "%.2f%s" % (output_value, suffix)
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def build_command(options_list, url):
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"""Build the youtube-dl command line string."""
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# If option has spaces wrap it with double quotes
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# Probably not the best solution since if the option already contains
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# double quotes it will be a mess, see issue #173
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options = ["\"{}\"".format(option) if " " in option else option for option in options_list]
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# Always wrap the url with double quotes
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url = "\"{}\"".format(url)
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return " ".join([YOUTUBEDL_BIN] + options + [url])
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