#!/usr/bin/python
# -*- coding: utf-8 -*-
"""Library to log the bot in to a wiki account."""
#
# (C) Pywikibot team, 2003-2019
#
# Distributed under the terms of the MIT license.
#
from __future__ import absolute_import, division, unicode_literals
import codecs
import os
import webbrowser
from pywikibot.tools import file_mode_checker
from warnings import warn
try:
import mwoauth
except ImportError as e:
mwoauth = e
import pywikibot
from pywikibot import config, __url__
from pywikibot.exceptions import NoUsername
from pywikibot.tools import (deprecated_args, remove_last_args,
normalize_username, UnicodeType)
[docs]class OAuthImpossible(ImportError):
"""OAuth authentication is not possible on your system."""
class _PasswordFileWarning(UserWarning):
"""The format of password file is incorrect."""
pass
_logger = 'wiki.login'
# On some wikis you are only allowed to run a bot if there is a link to
# the bot's user page in a specific list.
# If bots are listed in a template, the templates name must be given as
# second parameter, otherwise it must be None
botList = {
'wikipedia': {
'simple': ['Wikipedia:Bots', '/links']
},
}
[docs]class LoginManager(object):
"""Site login manager."""
[docs] @deprecated_args(username='user', verbose=None, sysop=None)
def __init__(self, password=None, site=None, user=None):
"""
Initializer.
All parameters default to defaults in user-config.
@param site: Site object to log into
@type site: BaseSite
@param user: username to use.
If user is None, the username is loaded from config.usernames.
@type user: basestring
@param password: password to use
@type password: basestring
@raises pywikibot.exceptions.NoUsername: No username is configured
for the requested site.
"""
site = self.site = site or pywikibot.Site()
if not user:
config_names = config.usernames
code_to_usr = config_names[site.family.name] or config_names['*']
try:
user = code_to_usr.get(site.code) or code_to_usr['*']
except KeyError:
raise NoUsername(
'ERROR: '
'username for {site.family.name}:{site.code} is undefined.'
'\nIf you have a username for that site, '
'please add a line to user-config.py as follows:\n'
"usernames['{site.family.name}']['{site.code}'] = "
"'myUsername'"
.format(site=site))
self.password = password
self.login_name = self.username = user
if getattr(config, 'password_file', ''):
self.readPassword()
[docs] def check_user_exists(self):
"""
Check that the username exists on the site.
@see: U{https://www.mediawiki.org/wiki/API:Users}
@raises pywikibot.exceptions.NoUsername: Username doesn't exist in
user list.
"""
# convert any Special:BotPassword usernames to main account equivalent
main_username = self.username
if '@' in self.username:
warn(
'When using BotPasswords it is recommended that you store '
'your login credentials in a password_file instead. See '
'{}/BotPasswords for instructions and more information.'
.format(__url__))
main_username = self.username.partition('@')[0]
try:
data = self.site.allusers(start=main_username, total=1)
user = next(iter(data))
except pywikibot.data.api.APIError as e:
if e.code == 'readapidenied':
pywikibot.warning('Could not check user %s exists on %s'
% (main_username, self.site))
return
else:
raise
if user['name'] != main_username:
# Report the same error as server error code NotExists
raise NoUsername("Username '%s' does not exist on %s"
% (main_username, self.site))
[docs] def botAllowed(self):
"""
Check whether the bot is listed on a specific page.
This allows bots to comply with the policy on the respective wiki.
"""
if self.site.family.name in botList \
and self.site.code in botList[self.site.family.name]:
botlist_pagetitle, bot_template_title = botList[
self.site.family.name][self.site.code]
botlist_page = pywikibot.Page(self.site, botlist_pagetitle)
if bot_template_title:
for template, params in botlist_page.templatesWithParams():
if (template.title() == bot_template_title
and params[0] == self.username):
return True
else:
for linked_page in botlist_page.linkedPages():
if linked_page.title(with_ns=False) == self.username:
return True
return False
else:
# No bot policies on other sites
return True
[docs] @remove_last_args(['remember', 'captcha'])
def getCookie(self):
"""
Login to the site.
@see: U{https://www.mediawiki.org/wiki/API:Login}
@return: cookie data if successful, None otherwise.
"""
# THIS IS OVERRIDDEN IN data/api.py
return None
[docs] def storecookiedata(self, data):
"""
Store cookie data.
@param data: The raw data as returned by getCookie()
@type data: str
@return: None
"""
# THIS IS OVERRIDDEN IN data/api.py
filename = config.datafilepath('pywikibot.lwp')
pywikibot.debug('Storing cookies to %s' % filename,
_logger)
with open(filename, 'w') as f:
f.write(data)
[docs] def readPassword(self):
"""
Read passwords from a file.
DO NOT FORGET TO REMOVE READ ACCESS FOR OTHER USERS!!!
Use chmod 600 password-file.
All lines below should be valid Python tuples in the form
(code, family, username, password),
(family, username, password) or
(username, password)
to set a default password for an username. The last matching entry will
be used, so default usernames should occur above specific usernames.
For BotPasswords the password should be given as a BotPassword object.
The file must be either encoded in ASCII or UTF-8.
Example::
('my_username', 'my_default_password')
('wikipedia', 'my_wikipedia_user', 'my_wikipedia_pass')
('en', 'wikipedia', 'my_en_wikipedia_user', 'my_en_wikipedia_pass')
('my_username', BotPassword(
'my_BotPassword_suffix', 'my_BotPassword_password'))
"""
# Set path to password file relative to the user_config
# but fall back on absolute path for backwards compatibility
password_file = os.path.join(config.base_dir, config.password_file)
if not os.path.isfile(password_file):
password_file = config.password_file
# We fix password file permission first.
file_mode_checker(password_file, mode=config.private_files_permission)
with codecs.open(password_file, encoding='utf-8') as f:
lines = f.readlines()
line_nr = len(lines) + 1
for line in reversed(lines):
line_nr -= 1
if not line.strip() or line.startswith('#'):
continue
try:
entry = eval(line)
except SyntaxError:
entry = None
if not isinstance(entry, tuple):
warn('Invalid tuple in line {0}'.format(line_nr),
_PasswordFileWarning)
continue
if not 2 <= len(entry) <= 4:
warn('The length of tuple in line {0} should be 2 to 4 ({1} '
'given)'.format(line_nr, entry), _PasswordFileWarning)
continue
code, family, username, password = (
self.site.code, self.site.family.name)[:4 - len(entry)] + entry
if (normalize_username(username) == self.username
and family == self.site.family.name
and code == self.site.code):
if isinstance(password, UnicodeType):
self.password = password
break
elif isinstance(password, BotPassword):
self.password = password.password
self.login_name = password.login_name(self.username)
break
else:
warn('Invalid password format', _PasswordFileWarning)
_api_error = {
'NotExists': 'does not exist',
'Illegal': 'is invalid',
'readapidenied': 'does not have read permissions',
'Failed': 'does not have read permissions',
'FAIL': 'does not have read permissions',
}
[docs] def login(self, retry=False, autocreate=False):
"""
Attempt to log into the server.
@see: U{https://www.mediawiki.org/wiki/API:Login}
@param retry: infinitely retry if the API returns an unknown error
@type retry: bool
@param autocreate: if true, allow auto-creation of the account
using unified login
@type autocreate: bool
@raises pywikibot.exceptions.NoUsername: Username is not recognised by
the site.
"""
if not self.password:
# First check that the username exists,
# to avoid asking for a password that will not work.
if not autocreate:
self.check_user_exists()
# As we don't want the password to appear on the screen, we set
# password = True
self.password = pywikibot.input(
'Password for user %(name)s on %(site)s (no characters will '
'be shown):' % {'name': self.login_name, 'site': self.site},
password=True)
pywikibot.output('Logging in to %(site)s as %(name)s'
% {'name': self.login_name, 'site': self.site})
try:
cookiedata = self.getCookie()
except pywikibot.data.api.APIError as e:
error_code = e.code
pywikibot.error('Login failed ({}).'.format(error_code))
if error_code in self._api_error:
error_msg = 'Username "{}" {} on {}'.format(
self.login_name, self._api_error[error_code], self.site)
if error_code in ('Failed', 'FAIL'):
error_msg += '\n.{}'.format(e.info)
raise NoUsername(error_msg)
# TODO: investigate other unhandled API codes (bug T75539)
if retry:
self.password = None
return self.login(retry=True)
else:
return False
self.storecookiedata(cookiedata)
pywikibot.log('Should be logged in now')
return True
[docs]class BotPassword(object):
"""BotPassword object for storage in password file."""
[docs] def __init__(self, suffix, password):
"""
Initializer.
BotPassword function by using a separate password paired with a
suffixed username of the form <username>@<suffix>.
@param suffix: Suffix of the login name
@type suffix: basestring
@param password: bot password
@type password: basestring
@raises _PasswordFileWarning: suffix improperly specified
"""
if '@' in suffix:
warn('The BotPassword entry should only include the suffix',
_PasswordFileWarning)
self.suffix = suffix
self.password = password
[docs] def login_name(self, username):
"""
Construct the login name from the username and suffix.
@param user: username (without suffix)
@type user: basestring
@rtype: basestring
"""
return '{0}@{1}'.format(username, self.suffix)
[docs]class OauthLoginManager(LoginManager):
"""Site login manager using OAuth."""
# NOTE: Currently OauthLoginManager use mwoauth directly to complete OAuth
# authentication process
[docs] @deprecated_args(sysop=None)
def __init__(self, password=None, site=None, user=None):
"""
Initializer.
All parameters default to defaults in user-config.
@param site: Site object to log into
@type site: BaseSite
@param user: consumer key
@type user: basestring
@param password: consumer secret
@type password: basestring
@raises pywikibot.exceptions.NoUsername: No username is configured
for the requested site.
@raises OAuthImpossible: mwoauth isn't installed
"""
if isinstance(mwoauth, ImportError):
raise OAuthImpossible('mwoauth is not installed: %s.' % mwoauth)
assert password is not None and user is not None
super(OauthLoginManager, self).__init__(password=None, site=site,
user=None)
if self.password:
pywikibot.warn('Password exists in password file for %s:%s.'
'Password is unnecessary and should be removed '
'when OAuth enabled.' % (self.site, self.username))
self._consumer_token = (user, password)
self._access_token = None
[docs] def login(self, retry=False, force=False):
"""
Attempt to log into the server.
@see: U{https://www.mediawiki.org/wiki/API:Login}
@param retry: infinitely retry if exception occurs during
authentication.
@type retry: bool
@param force: force to re-authenticate
@type force: bool
"""
if self.access_token is None or force:
pywikibot.output(
'Logging in to %(site)s via OAuth consumer %(key)s'
% {'key': self.consumer_token[0], 'site': self.site})
consumer_token = mwoauth.ConsumerToken(self.consumer_token[0],
self.consumer_token[1])
handshaker = mwoauth.Handshaker(
self.site.base_url(self.site.path()), consumer_token)
try:
redirect, request_token = handshaker.initiate()
pywikibot.stdout('Authenticate via web browser..')
webbrowser.open(redirect)
pywikibot.stdout('If your web browser does not open '
'automatically, please point it to: %s'
% redirect)
request_qs = pywikibot.input('Response query string: ')
access_token = handshaker.complete(request_token,
request_qs)
self._access_token = (access_token.key, access_token.secret)
except Exception as e:
pywikibot.error(e)
if retry:
self.login(retry=True, force=force)
else:
pywikibot.output('Logged in to %(site)s via consumer %(key)s'
% {'key': self.consumer_token[0],
'site': self.site})
@property
def consumer_token(self):
"""
Return OAuth consumer key token and secret token.
@see: U{https://www.mediawiki.org/wiki/API:Tokens}
@rtype: tuple of two str
"""
return self._consumer_token
@property
def access_token(self):
"""
Return OAuth access key token and secret token.
@see: U{https://www.mediawiki.org/wiki/API:Tokens}
@rtype: tuple of two str
"""
return self._access_token
@property
def identity(self):
"""
Get identifying information about a user via an authorized token.
@rtype: None or dict
"""
if self.access_token is None:
pywikibot.error('Access token not set')
return None
consumer_token = mwoauth.ConsumerToken(self.consumer_token[0],
self.consumer_token[1])
access_token = mwoauth.AccessToken(self.access_token[0],
self.access_token[1])
try:
identity = mwoauth.identify(self.site.base_url(self.site.path()),
consumer_token, access_token)
return identity
except Exception as e:
pywikibot.error(e)
return None