#!/usr/bin/env python3
"""This script generates a family file from a given URL.
This script must be invoked with the pwb wrapper script/code entry point.
Usage::
pwb generate_family_file.py [<url>] [<name>] [<dointerwiki>] [<verify>]
Parameters are optional. They must be given consecutively but may be
omitted if there is no successor parameter. The parameters are::
<url>: an url from where the family settings are loaded
<name>: the family name without "_family.py" tail.
<dointerwiki>: predefined answer (y|s|n) to add multiple site codes
<verify>: disable certificate validaton `(y|n)
Example::
pwb generate_family_file.py https://www.mywiki.bogus/wiki/Main_Page mywiki
This will create the file mywiki_family.py in families folder of your
base directory.
.. versionchanged:: 7.0
moved to pywikibot.scripts folder; create family files in families
folder of your base directory instead of pywikibot/families.
.. versionchanged:: 8.1
[s]trict can be given for <dointerwiki> parameter to ensure that
sites are from the given domain.
.. versionchanged:: 8.4
If the url scheme is missing, ``https`` will be used.
"""
#
# (C) Pywikibot team, 2010-2023
#
# Distributed under the terms of the MIT license.
#
from __future__ import annotations
import codecs
import os
import re
import string
import sys
from contextlib import suppress
from urllib.parse import urlparse, urlunparse
# see pywikibot.family.py
# Legal characters for Family name and Family langs keys
NAME_CHARACTERS = string.ascii_letters + string.digits
# nds_nl code alias requires "_"n
# dash must be the last char to be reused as regex
CODE_CHARACTERS = string.ascii_lowercase + string.digits + '_-'
[docs]
class FamilyFileGenerator:
"""Family file creator object."""
def __init__(self,
url: str | None = None,
name: str | None = None,
dointerwiki: str | None = None,
verify: str | None = None) -> None:
"""
Parameters are optional. If not given the script asks for the values.
:param url: an url from where the family settings are loaded
:param name: the family name without "_family.py" tail.
:param dointerwiki: Predefined answer to add multiple site
codes. Pass `Y` or `y` for yes, `S` or `s` for strict which
only includes site of the same domain (usually for Wikimedia
sites), `N` or `n` for no and `E` or `e` if you want to edit
the collection of sites.
:param verify: If a certificate verification failes, you may
pass `Y` or `y` to disable certificate validaton `N` or `n`
to keep it enabled.
"""
from pywikibot.scripts import _import_with_no_user_config
# from pywikibot.site_detect import MWSite and
# from pywikibot.config import base_dir
# when required but disable user-config checks
# so the family can be created first,
# and then used when generating the user-config
self.Wiki = _import_with_no_user_config(
'pywikibot.site_detect').site_detect.MWSite
self.base_dir = _import_with_no_user_config(
'pywikibot.config').config.base_dir
self.base_url = url
self.name = name
self.dointerwiki = dointerwiki
self.verify = verify
self.wikis = {} # {'https://wiki/$1': Wiki('https://wiki/$1'), ...}
self.langs = [] # [Wiki('https://wiki/$1'), ...]
[docs]
def get_params(self) -> bool: # pragma: no cover
"""Ask for parameters if necessary."""
if self.base_url is None:
with suppress(KeyboardInterrupt):
url = input('Please insert URL to wiki: ')
if not url:
return False
url = urlparse(url, 'https')
if not url.netloc and url.path:
self.base_url = urlunparse((url.scheme, url.path, url.netloc,
*url[3:]))
else:
self.base_url = urlunparse(url)
if self.name is None:
with suppress(KeyboardInterrupt):
self.name = input('Please insert a short name (eg: freeciv): ')
if not self.name:
return False
if any(x not in NAME_CHARACTERS for x in self.name):
print('ERROR: Name of family "{}" must be ASCII letters and '
'digits [a-zA-Z0-9]'.format(self.name))
return False
return True
[docs]
def get_wiki(self):
"""Get wiki from base_url."""
import pywikibot
from pywikibot.exceptions import FatalServerError
pywikibot.info('Generating family file from ' + self.base_url)
for verify in (True, False):
try:
w = self.Wiki(self.base_url, verify=verify)
except FatalServerError:
pywikibot.exception()
pywikibot.info()
if not pywikibot.bot.input_yn(
'Retry with disabled ssl certificate validation',
default=self.verify, automatic_quit=False,
force=self.verify is not None):
break
else:
return w, verify
return None, None # pragma: no cover
[docs]
def run(self) -> None:
"""Main method, generate family file."""
if not self.get_params():
return
w, verify = self.get_wiki()
if w is None:
return
self.wikis[w.lang] = w
print('\n=================================='
'\nAPI url: {w.api}'
'\nMediaWiki version: {w.version}'
'\n==================================\n'.format(w=w))
self.getlangs(w)
self.getapis()
self.writefile(verify)
[docs]
def getlangs(self, w) -> None:
"""Determine site code of a family.
.. versionchanged:: 8.1
with [e]dit the interwiki list can be given delimited by
space or comma or both. With [s]trict only sites with the
same domain are collected. A [h]elp answer was added to show
more information about possible answers.
"""
print('Determining other sites...', end='')
try:
self.langs = w.langs
print(' '.join(sorted(wiki['prefix'] for wiki in self.langs)))
except Exception as e: # pragma: no cover
self.langs = []
print(e, '; continuing...')
if len([lang for lang in self.langs if lang['url'] == w.iwpath]) == 0:
if w.private_wiki:
w.lang = self.name
self.langs.append({'language': w.lang,
'local': '',
'prefix': w.lang,
'url': w.iwpath})
code_len = len(self.langs)
if code_len > 1:
if self.dointerwiki is None:
while True: # pragma: no cover
makeiw = input(
'\n'
f'There are {code_len} sites available.'
' Do you want to generate interwiki links?\n'
'This might take a long time. '
'([y]es, [s]trict, [N]o, [e]dit), [h]elp) ').lower()
if makeiw in ('y', 's', 'n', 'e', ''):
break
print(
'\n'
'[y]es: create interwiki links for all sites\n'
'[s]trict: yes, but for sites with same domain only\n'
'[N]o: no, use the current site only (default)\n'
'[e]dit: get a list delimited with space or comma\n'
'[h]elp: this help message'
)
else:
makeiw = self.dointerwiki
if makeiw in ('n', ''):
self.langs = [wiki for wiki in self.langs
if wiki['url'] == w.iwpath]
elif makeiw == 's':
domain = '.'.join(urlparse(w.server).hostname.split('.')[1:])
self.langs = [wiki for wiki in self.langs
if domain in wiki['url']]
elif makeiw == 'e': # pragma: no cover
for wiki in self.langs:
print(wiki['prefix'], wiki['url'])
do_langs = re.split(' *,| +',
input('Which sites do you want: '))
self.langs = [wiki for wiki in self.langs
if wiki['prefix'] in do_langs
or wiki['url'] == w.iwpath]
for wiki in self.langs:
assert all(x in CODE_CHARACTERS for x in wiki['prefix']), \
'Family {} code {} must be ASCII lowercase ' \
'letters and digits [a-z0-9] or underscore/dash [_-]' \
.format(self.name, wiki['prefix'])
[docs]
def getapis(self) -> None:
"""Load other site pages."""
print(f'Loading {len(self.langs)} wikis... ')
remove = []
for lang in self.langs:
key = lang['prefix']
print(f' * {key}... ', end='')
if key not in self.wikis:
try:
self.wikis[key] = self.Wiki(lang['url'])
print('downloaded')
except Exception as e: # pragma: no cover
print(e)
remove.append(lang)
else:
print('in cache')
for lang in remove:
self.langs.remove(lang)
[docs]
def writefile(self, verify) -> None:
"""Write the family file."""
fn = os.path.join(self.base_dir, 'families',
f'{self.name}_family.py')
print(f'Writing {fn}... ')
if os.path.exists(fn) and input(
f'{fn} already exists. Overwrite? (y/n) ').lower() == 'n':
print('Terminating.')
sys.exit(1)
code_hostname_pairs = '\n '.join(
f"'{k}': '{urlparse(w.server).netloc}',"
for k, w in self.wikis.items())
code_path_pairs = '\n '.join(
f"'{k}': '{w.scriptpath}',"
for k, w in self.wikis.items())
code_protocol_pairs = '\n '.join(
f"'{k}': '{urlparse(w.server).scheme}',"
for k, w in self.wikis.items())
content = family_template % {
'url': self.base_url, 'name': self.name,
'code_hostname_pairs': code_hostname_pairs,
'code_path_pairs': code_path_pairs,
'code_protocol_pairs': code_protocol_pairs}
if not verify:
# assuming this is the same for all codes
content += """
def verify_SSL_certificate(self, code: str) -> bool:
return False
"""
os.makedirs(os.path.dirname(fn), exist_ok=True)
with codecs.open(fn, 'w', 'utf-8') as fh:
fh.write(content)
family_template = """\
\"\"\"
This family file was auto-generated by generate_family_file.py script.
Configuration parameters:
url = %(url)s
name = %(name)s
Please do not commit this to the Git repository!
\"\"\"
from pywikibot import family
class Family(family.Family): # noqa: D101
name = '%(name)s'
langs = {
%(code_hostname_pairs)s
}
def scriptpath(self, code):
return {
%(code_path_pairs)s
}[code]
def protocol(self, code):
return {
%(code_protocol_pairs)s
}[code]
"""
[docs]
def main() -> None:
"""Process command line arguments and generate a family file."""
if len(sys.argv) > 1 and sys.argv[1] == '-help':
print(__doc__)
else:
FamilyFileGenerator(*sys.argv[1:]).run()
if __name__ == '__main__':
main()