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267 lines
10 KiB
Python
267 lines
10 KiB
Python
#!/usr/bin/env python
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#
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# This file is part of the KDE project
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#
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# Copyright (C) 2008 Ningyu Shi <shiningyu@gmail.com>
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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# Copyright (c) 2006-2008 Ricardo Garcia Gonzalez
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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#
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# Except as contained in this notice, the name(s) of the above copyright
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# holders shall not be used in advertising or otherwise to promote the
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# sale, use or other dealings in this Software without prior written
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# authorization.
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#
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import getpass
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import os
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import re
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import string
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import sys
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import urllib
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import urllib2
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# Global constants
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const_video_url_str = 'http://www.youtube.com/watch?v=%s'
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const_video_url_re = re.compile(r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$')
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const_video_url_format_suffix = '&fmt=%s'
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const_best_quality_format = 18
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const_login_url_str = 'http://www.youtube.com/login?next=/watch%%3Fv%%3D%s'
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const_login_post_str = 'current_form=loginForm&next=%%2Fwatch%%3Fv%%3D%s&username=%s&password=%s&action_login=Log+In'
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const_bad_login_re = re.compile(r'(?i)<form[^>]* name="loginForm"')
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const_age_url_str = 'http://www.youtube.com/verify_age?next_url=/watch%%3Fv%%3D%s'
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const_age_post_str = 'next_url=%%2Fwatch%%3Fv%%3D%s&action_confirm=Confirm'
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const_url_t_param_re = re.compile(r', "t": "([^"]+)"')
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const_video_url_real_str = 'http://www.youtube.com/get_video?video_id=%s&t=%s'
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const_video_title_re = re.compile(r'<title>YouTube - ([^<]*)</title>', re.M | re.I)
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global_error = False
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# Print error message, followed by standard advice information, and then exit
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def exit_with_error(error_text):
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global global_error
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import kgetcore
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kgetcore.abort('Error: ' + error_text)
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global_error = True
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# Wrapper to create custom requests with typical headers
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def request_create(url, extra_headers, post_data):
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retval = urllib2.Request(url)
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if post_data is not None:
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retval.add_data(post_data)
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# Try to mimic Firefox, at least a little bit
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retval.add_header('User-Agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14')
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retval.add_header('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.7')
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retval.add_header('Accept', 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5')
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retval.add_header('Accept-Language', 'en-us,en;q=0.5')
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if extra_headers is not None:
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for header in extra_headers:
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retval.add_header(header[0], header[1])
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return retval
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# Perform a request, process headers and return response
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def perform_request(url, headers=None, data=None):
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request = request_create(url, headers, data)
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response = urllib2.urlopen(request)
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return response
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# Conditional print
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def cond_print(str):
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import kgetcore
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kgetcore.setTextStatus(str)
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# Title string normalization
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def title_string_norm(title):
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title = ''.join((x in string.ascii_letters or x in string.digits) and x or ' ' for x in title)
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title = '_'.join(title.split())
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title = title.lower()
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return title
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# Generic download step
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def download_step(return_data_flag, step_title, step_error, url, post_data=None):
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try:
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cond_print('%s... ' % step_title)
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data = perform_request(url, data=post_data).read()
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cond_print('%s... Done.' % step_title)
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if return_data_flag:
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return data
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return None
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except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError, socket.error):
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cond_print('%s... Failed.' % step_title )
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exit_with_error(step_error)
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# Generic extract step
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def extract_step(step_title, step_error, regexp, data):
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cond_print('%s... ' % step_title)
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match = regexp.search(data)
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if match is None:
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cond_print('%s... Failed.' % step_title )
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exit_with_error(step_error)
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extracted_data = match.group(1)
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cond_print('%s... Done.' % step_title)
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return extracted_data
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class YoutubeDlOption:
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def __init__(self, kconfig):
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self.parser = kconfig
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self.parser.setFile('kget_youtubedl.rc')
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def parse(self):
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self.use_literal = bool(self.parser.read('FileSetting', 'UseLiteralName', 0))
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if self.parser.read("FileSetting", "Quality", 1) == 0:
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# index 0 of the combobox is best quality
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self.best_quality = True
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else:
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self.best_quality = False
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self.enable_login = bool(self.parser.read('LoginInfo', 'Enabled', 0))
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self.username = self.parser.read('LoginInfo', 'Username', 'Nobody')
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self.password = self.parser.read('LoginInfo', 'Password', 'passwd')
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self.use_netrc = bool(self.parser.read('LoginInfo', 'UseNetrc', 0))
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def startDownload(kconfig):
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global global_error
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import kgetcore
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# read settings
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option = YoutubeDlOption(kconfig)
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option.parse()
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# Verify video URL format and convert to "standard" format
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video_url_cmdl = kgetcore.getSourceUrl()
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video_url_mo = const_video_url_re.match(video_url_cmdl)
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if video_url_mo is None:
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video_url_mo = const_video_url_re.match(urllib.unquote(video_url_cmdl))
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if video_url_mo is None:
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exit_with_error('URL does not seem to be a youtube video URL. If it is, report a bug.')
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return
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video_url_id = video_url_mo.group(2)
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video_url = const_video_url_str % video_url_id
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video_format = None
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if option.best_quality:
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video_format = const_best_quality_format
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video_extension = '.mp4'
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else:
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video_extension = '.flv'
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if video_format is not None:
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video_url = '%s%s' % (video_url, const_video_url_format_suffix % video_format)
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# Get account information if any
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account_username = None
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account_password = None
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if option.enable_login:
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if option.use_netrc:
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try:
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info = netrc.netrc().authenticators('youtube')
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if info is None:
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exit_with_error('no authenticators for machine youtube.')
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return
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account_username = info[0]
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account_password = info[2]
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except IOError:
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exit_with_error('unable to read .netrc file.')
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return
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except netrc.NetrcParseError:
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exit_with_error('unable to parse .netrc file.')
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return
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else:
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# TODO: check
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account_username = option.username
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account_password = option.password
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# Install cookie and proxy handlers
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urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))
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urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
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# Log in and confirm age if needed
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if account_username is not None:
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kgetcore.setTextStatus('Logging in...')
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url = const_login_url_str % video_url_id
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post = const_login_post_str % (video_url_id, account_username, account_password)
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reply_page = download_step(True, 'Logging in', 'unable to log in', url, post)
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if global_error:
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return
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if const_bad_login_re.search(reply_page) is not None:
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exit_with_error('unable to log in')
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return
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url = const_age_url_str % video_url_id
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post = const_age_post_str % video_url_id
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download_step(False, 'Confirming age', 'unable to confirm age', url, post)
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if global_error:
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return
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# Install cookie and proxy handlers
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urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))
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urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
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# Retrieve video webpage
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video_webpage = download_step(True, 'Retrieving video webpage', 'Unable to retrieve video webpage', video_url)
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if global_error:
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return
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# Extract video title
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video_title = extract_step('Extracting video title', 'Unable to extract video title', const_video_title_re, video_webpage)
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if global_error:
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return
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# Extract needed video URL parameters
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video_url_t_param = extract_step('Extracting URL "t" parameter', 'Unable to extract URL "t" parameter', const_url_t_param_re, video_webpage)
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if global_error:
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return
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video_url_real = const_video_url_real_str % (video_url_id, video_url_t_param)
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if video_format is not None:
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video_url_real = '%s%s' % (video_url_real, const_video_url_format_suffix % video_format)
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# Rebuild filename
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if option.use_literal:
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prefix = title_string_touch(video_title)
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video_filename = '%s-%s%s' % (prefix, video_url_id, video_extension)
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else:
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prefix = title_string_norm(video_title)
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video_filename = '%s%s' % (prefix, video_extension)
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#video_filename = '%s%s' % (video_url_id, video_extension)
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# Check name
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if not video_filename.lower().endswith(video_extension):
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kgetcore.setTextStatus('Warning: video file name does not end in %s\n' % video_extension)
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# Add to kget
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kgetcore.addTransfer(video_url_real, video_filename)
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kgetcore.finish()
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youtube_option = 0
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def configureScript(widget, kconfig):
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from kget_youtubedl_option import YoutubeDlOptionWidget
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global youtube_option
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youtube_option = YoutubeDlOptionWidget(kconfig)
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widget.setWidget(youtube_option)
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def configurationAccepted(widget, kconfig):
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from kget_youtubedl_option import YoutubeDlOptionWidget
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global youtube_option
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youtube_option.saveSetting()
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