418 lines
18 KiB
Python
418 lines
18 KiB
Python
import datetime
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import traceback
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from typing import Union, Dict, List
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import html2text
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import ujson as json
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import re
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import urllib.parse
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from core.logger import Logger
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from core.utils import get_url
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from core.dirty_check import check
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from .dbutils import WikiSiteInfo as DBSiteInfo
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from .audit import check_whitelist
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class InvalidPageIDError(Exception):
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pass
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class InvalidWikiError(Exception):
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pass
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class DangerousContentError(Exception):
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pass
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class PageNotFound(Exception):
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pass
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class WhatAreUDoingError(Exception):
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pass
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class WikiInfo:
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def __init__(self,
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api: str,
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articlepath: str,
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extensions: list,
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interwiki: dict,
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realurl: str,
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name: str,
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namespaces: list,
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namespaces_local: dict,
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in_whitelist: bool):
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self.api = api
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self.articlepath = articlepath
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self.extensions = extensions
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self.interwiki = interwiki
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self.realurl = realurl
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self.name = name
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self.namespaces = namespaces
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self.namespaces_local = namespaces_local
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self.in_whitelist = in_whitelist
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class WikiStatus:
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def __init__(self,
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available: bool,
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value: Union[WikiInfo, bool],
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message: str):
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self.available = available
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self.value = value
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self.message = message
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class PageInfo:
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def __init__(self,
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info: WikiInfo,
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title: str,
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before_title: str = None,
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link: str = None,
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file: str = None,
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desc: str = None,
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args: str = None,
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interwiki_prefix: str = '',
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status: bool = True,
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before_page_property: str = 'page',
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page_property: str = 'page',
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invalid_namespace: bool = False
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):
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self.info = info
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self.title = title
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self.before_title = before_title
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self.link = link
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self.file = file
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self.desc = desc
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self.args = args
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self.interwiki_prefix = interwiki_prefix
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self.status = status
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self.before_page_property = before_page_property
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self.page_property = page_property
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self.invalid_namespace = invalid_namespace
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class WikiLib:
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def __init__(self, url: str, headers=None):
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self.url = url
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self.wiki_info = WikiInfo(api='', articlepath='', extensions=[], interwiki={}, realurl='', name='',
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namespaces=[], namespaces_local={}, in_whitelist=False)
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self.headers = headers
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async def get_json(self, api, **kwargs) -> dict:
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if kwargs is not None:
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api = api + '?' + urllib.parse.urlencode(kwargs)
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return await get_url(api, status_code=200, headers=self.headers, fmt="json")
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def rearrange_siteinfo(self, info: Union[dict, str]) -> WikiInfo:
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if isinstance(info, str):
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info = json.loads(info)
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extensions = info['query']['extensions']
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ext_list = []
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for ext in extensions:
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ext_list.append(ext['name'])
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real_url = info['query']['general']['server']
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if real_url.startswith('//'):
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real_url = self.url.split('//')[0] + real_url
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namespaces = []
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namespaces_local = {}
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for x in info['query']['namespaces']:
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try:
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ns = info['query']['namespaces'][x]
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if '*' in ns:
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namespaces.append(ns['*'])
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if 'canonical' in ns:
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namespaces.append(ns['canonical'])
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if '*' in ns and 'canonical' in ns:
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namespaces_local.update({ns['*']: ns['canonical']})
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except Exception:
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traceback.print_exc()
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for x in info['query']['namespacealiases']:
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if '*' in x:
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namespaces.append(x['*'])
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interwiki_map = info['query']['interwikimap']
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interwiki_dict = {}
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for interwiki in interwiki_map:
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interwiki_dict[interwiki['prefix']] = interwiki['url']
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api_url = real_url + info['query']['general']['scriptpath'] + '/api.php'
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return WikiInfo(articlepath=real_url + info['query']['general']['articlepath'],
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extensions=ext_list,
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name=info['query']['general']['sitename'],
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realurl=real_url,
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api=api_url,
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namespaces=namespaces,
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namespaces_local=namespaces_local,
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interwiki=interwiki_dict,
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in_whitelist=check_whitelist(api_url))
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async def check_wiki_available(self):
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try:
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api_match = re.match(r'(https?://.*?/url.php$)', self.url)
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wiki_api_link = api_match.group(1)
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except Exception:
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try:
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get_page = await get_url(self.url, fmt='text', headers=self.headers)
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if get_page.find('<title>Attention Required! | Cloudflare</title>') != -1:
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return WikiStatus(available=False, value=False, message='CloudFlare拦截了机器人的请求，请联系站点管理员解决此问题。')
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m = re.findall(
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r'(?im)<\s*link\s*rel="EditURI"\s*type="application/rsd\+xml"\s*href="([^>]+?)\?action=rsd"\s*/\s*>',
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get_page)
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api_match = m[0]
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if api_match.startswith('//'):
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api_match = self.url.split('//')[0] + api_match
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Logger.info(api_match)
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wiki_api_link = api_match
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except TimeoutError:
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return WikiStatus(available=False, value=False, message='错误：尝试建立连接超时。')
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except Exception as e:
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traceback.print_exc()
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if e.args == (403,):
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message = '服务器拒绝了机器人的请求。'
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elif not re.match(r'^(https?://).*', self.url):
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message = '所给的链接没有指明协议头（链接应以http://或https://开头）。'
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else:
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message = '此站点也许不是一个有效的Mediawiki：' + str(e)
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if self.url.find('moegirl.org.cn') != -1:
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message += '\n萌娘百科的api接口不稳定，请稍后再试或直接访问站点。'
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return WikiStatus(available=False, value=False, message=message)
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get_cache_info = DBSiteInfo(wiki_api_link).get()
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if get_cache_info and datetime.datetime.now().timestamp() - get_cache_info[1].timestamp() < 43200:
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return WikiStatus(available=True,
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value=self.rearrange_siteinfo(get_cache_info[0]),
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message='')
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try:
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get_json = await self.get_json(wiki_api_link,
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action='query',
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meta='siteinfo',
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siprop='general|namespaces|namespacealiases|interwikimap|extensions',
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format='json')
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except Exception as e:
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return WikiStatus(available=False, value=False, message='从API获取信息时出错：' + str(e))
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DBSiteInfo(wiki_api_link).update(get_json)
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info = self.rearrange_siteinfo(get_json)
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return WikiStatus(available=True, value=info,
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message='警告：此wiki没有启用TextExtracts扩展，返回的页面预览内容将为未处理的原始Wikitext文本。'
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if 'TextExtracts' not in info.extensions else '')
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async def fixup_wiki_info(self):
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if self.wiki_info.api == '':
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wiki_info = await self.check_wiki_available()
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if wiki_info.available:
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self.wiki_info = wiki_info.value
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else:
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raise InvalidWikiError(wiki_info.message if wiki_info.message != '' else '')
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@staticmethod
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def parse_text(text):
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try:
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desc = text.split('\n')
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desc_list = []
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for x in desc:
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if x != '':
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desc_list.append(x)
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desc = '\n'.join(desc_list)
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desc_end = re.findall(r'(.*?(?:!\s|\?\s|\.\s|！|？|。)).*', desc, re.S | re.M)
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if desc_end:
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desc = desc_end[0]
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except Exception:
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traceback.print_exc()
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desc = ''
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if desc in ['...', '…']:
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desc = ''
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ell = False
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if len(desc) > 250:
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desc = desc[0:250]
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ell = True
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split_desc = desc.split('\n')
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for d in split_desc:
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if d == '':
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split_desc.remove('')
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if len(split_desc) > 5:
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split_desc = split_desc[0:5]
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ell = True
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return '\n'.join(split_desc) + ('...' if ell else '')
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async def get_html_to_text(self, page_name):
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await self.fixup_wiki_info()
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get_parse = await self.get_json(self.wiki_info.api,
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action='parse',
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page=page_name,
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prop='text',
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format='json')
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h = html2text.HTML2Text()
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h.ignore_links = True
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h.ignore_images = True
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h.ignore_tables = True
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return h.handle(get_parse['parse']['text']['*'])
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async def get_wikitext(self, page_name):
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await self.fixup_wiki_info()
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try:
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load_desc = await self.get_json(self.wiki_info.api,
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action='parse',
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page=page_name,
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prop='wikitext',
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format='json')
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desc = load_desc['parse']['wikitext']['*']
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except Exception:
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traceback.print_exc()
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desc = ''
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return desc
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async def research_page(self, page_name: str):
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await self.fixup_wiki_info()
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get_page = await self.get_json(self.wiki_info.api,
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action='query',
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list='search',
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srsearch=page_name,
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srwhat='text',
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srlimit='1',
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srenablerewrites=True,
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format='json')
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new_page_name = get_page['query']['search'][0]['title'] if len(get_page['query']['search']) > 0 else None
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title_split = page_name.split(':')
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print(title_split, len(title_split))
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is_invalid_namespace = False
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if len(title_split) > 1 and title_split[0] not in self.wiki_info.namespaces:
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is_invalid_namespace = True
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return new_page_name, is_invalid_namespace
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async def parse_page_info(self, title: str, doc_mode=False,
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tried_iw=0, iw_prefix='') -> PageInfo:
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await self.fixup_wiki_info()
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if tried_iw > 5:
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raise WhatAreUDoingError
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split_name = re.split(r'([#?])', title)
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title = re.sub('_', ' ', split_name[0])
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arg_list = []
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quote_code = False
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for a in split_name[1:]:
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if a[0] == '#':
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quote_code = True
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if a[0] == '?':
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quote_code = False
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if quote_code:
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arg_list.append(urllib.parse.quote(a))
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else:
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arg_list.append(a)
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page_info = PageInfo(info=self.wiki_info, title=title, args=''.join(arg_list), interwiki_prefix=iw_prefix)
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query_string = {'action': 'query', 'format': 'json', 'prop': 'info|imageinfo', 'inprop': 'url', 'iiprop': 'url',
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'redirects': 'True', 'titles': title}
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use_textextracts = True if 'TextExtracts' in self.wiki_info.extensions else False
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if use_textextracts:
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query_string.update({'prop': 'info|imageinfo|extracts',
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'ppprop': 'description|displaytitle|disambiguation|infoboxes', 'explaintext': 'true',
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'exsectionformat': 'plain', 'exchars': '200'})
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get_page = await self.get_json(self.wiki_info.api, **query_string)
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query = get_page.get('query')
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redirects_: List[Dict[str, str]] = query.get('redirects')
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if redirects_ is not None:
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for r in redirects_:
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if r['from'] == title:
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page_info.before_title = r['from']
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page_info.title = r['to']
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normalized_: List[Dict[str, str]] = query.get('normalized')
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if normalized_ is not None:
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for n in normalized_:
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if n['from'] == title:
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page_info.before_title = n['from']
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page_info.title = n['to']
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pages: Dict[str, dict] = query.get('pages')
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if pages is not None:
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for page_id in pages:
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page_raw = pages[page_id]
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title = page_raw['title']
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if int(page_id) < 0:
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if 'missing' not in page_raw or 'known' in page_raw:
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full_url = re.sub(r'\$1', urllib.parse.quote(title.encode('UTF-8')), self.wiki_info.articlepath) \
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+ page_info.args
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page_info.link = full_url
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else:
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split_title = title.split(':')
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if len(split_title) > 1 and split_title[0] in self.wiki_info.namespaces_local \
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and self.wiki_info.namespaces_local[split_title[0]] == 'Template':
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rstitle = ':'.join(split_title[1:]) + page_info.args
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research = await self.parse_page_info(rstitle)
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page_info.title = research.title
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page_info.link = research.link
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page_info.desc = research.desc
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page_info.file = research.file
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page_info.before_title = title
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page_info.before_page_property = 'template'
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page_info.status = research.status
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else:
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research = await self.research_page(title)
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page_info.title = research[0]
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page_info.before_title = title
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page_info.invalid_namespace = research[1]
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page_info.status = False
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else:
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page_desc = ''
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split_title = title.split(':')
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get_desc = True
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if not doc_mode and len(split_title) > 1 and split_title[0] in self.wiki_info.namespaces_local \
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and self.wiki_info.namespaces_local[split_title[0]] == 'Template':
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get_all_text = await self.get_wikitext(title)
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match_doc = re.match(r'.*{{documentation\|?(.*?)}}.*', get_all_text, re.I | re.S)
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if match_doc:
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match_link = re.match(r'link=(.*)', match_doc.group(1), re.I | re.S)
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if match_link:
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get_doc = match_link.group(1)
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else:
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get_doc = title + '/doc'
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get_desc = False
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get_doc_desc = await self.parse_page_info(get_doc, doc_mode=True)
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page_desc = get_doc_desc.desc
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page_info.before_page_property = page_info.page_property = 'template'
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if get_desc:
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if use_textextracts:
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raw_desc = page_raw.get('extract')
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if raw_desc is not None:
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page_desc = self.parse_text(raw_desc)
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else:
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page_desc = self.parse_text(await self.get_html_to_text(title))
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full_url = page_raw['fullurl'] + page_info.args
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file = None
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if 'imageinfo' in page_raw:
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file = page_raw['imageinfo'][0]['url']
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page_info.title = title
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page_info.link = full_url
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page_info.file = file
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page_info.desc = page_desc
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interwiki_: List[Dict[str, str]] = query.get('interwiki')
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if interwiki_ is not None:
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for i in interwiki_:
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if i['title'] == title:
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iw_title = re.match(r'^' + i['iw'] + ':(.*)', i['title'])
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iw_title = iw_title.group(1) + page_info.args
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iw_prefix += i['iw'] + ':'
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iw_query = await WikiLib(url=self.wiki_info.interwiki[i['iw']]).parse_page_info(iw_title,
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tried_iw=tried_iw + 1,
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iw_prefix=iw_prefix)
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page_info = iw_query
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page_info.before_title = title
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t = page_info.title
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if tried_iw == 0:
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page_info.title = page_info.interwiki_prefix + t
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if not self.wiki_info.in_whitelist:
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checklist = []
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if page_info.title is not None:
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checklist.append(page_info.title)
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if page_info.before_title is not None:
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checklist.append(page_info.before_title)
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if page_info.desc is not None:
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checklist.append(page_info.desc)
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chk = await check(*checklist)
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for x in chk:
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print(x)
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if x.find("<吃掉了>") != -1 or x.find("<全部吃掉了>") != -1:
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page_info.status = True
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page_info.before_title = '?'
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page_info.title = '¿'
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page_info.link = 'https://wdf.ink/6OUp'
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return page_info
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