1 # python-simplemediawiki - Extremely low-level wrapper to the MediaWiki API
2 # Copyright (C) 2010 Red Hat, Inc.
4 # This library is free software; you can redistribute it and/or modify it under
5 # the terms of the GNU Lesser General Public License as published by the Free
6 # Software Foundation; either version 2.1 of the License, or (at your option)
9 # This library is distributed in the hope that it will be useful, but WITHOUT
10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
14 # You should have received a copy of the GNU General Public License along with
15 # this program. If not, see <http://www.gnu.org/licenses/>.
18 simplemediawiki is an extremely low-level wrapper to the MediaWiki API. It
19 automatically handles cookies and gzip compression so that you can make basic
20 calls to the API in the easiest way possible. It also provides a few functions
21 to make day-to-day API access easier.
23 To use this module, instantiate a MediaWiki object, passing it the URL of
24 api.php for the wiki you want to work with. Calls go through MediaWiki.call().
25 A generic login wrapper as well as functions to determine limits and get a list
26 of namespaces are provided for your convenience.
28 >>> from simplemediawiki import MediaWiki
29 >>> wiki = MediaWiki('http://en.wikipedia.org/w/api.php')
30 >>> wiki.call({'action': 'query', 'prop': 'revisions', 'titles': 'Main Page'})
31 {u'query': {u'pages': {...}}}
36 from iso8601 import iso8601
38 from StringIO import StringIO
45 Class to represent a MediaWiki installation with an enabled API.
47 api_url: URL to api.php (usually similar to http://example.com/w/api.php)
51 _psuedo_namespaces = None
53 def __init__(self, api_url, cookie_file=None, user_agent=DEFAULT_UA):
54 self._api_url = api_url
56 self._cj = cookielib.MozillaCookieJar(cookie_file)
63 self._cj = cookielib.CookieJar()
64 self._opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self._cj))
65 self._opener.addheaders = [('User-agent', user_agent)]
67 def _fetch_http(self, url, params):
68 request = urllib2.Request(url, urllib.urlencode(params))
69 request.add_header('Accept-encoding', 'gzip')
70 response = self._opener.open(request)
71 if isinstance(self._cj, cookielib.MozillaCookieJar):
73 if response.headers.get('Content-Encoding') == 'gzip':
74 compressed = StringIO(response.read())
75 gzipper = gzip.GzipFile(fileobj=compressed)
78 data = response.read()
81 def call(self, params):
83 Make a call to the wiki. Returns a dictionary that represents the JSON
86 params['format'] = 'json'
87 return json.loads(self._fetch_http(self._api_url, params))
89 def normalize_api_url(self):
91 This function checks the given URL for a correct API endpoint and
92 returns that URL, while also helpfully setting this object's API URL to
93 it. If it can't magically conjure an API endpoint, it returns False.
95 data, data_json = self._normalize_api_url_tester(self._api_url)
99 # if there's an index.php in the URL, we might find the API
100 if 'index.php' in self._api_url:
101 test_api_url = self._api_url.split('index.php')[0] + 'api.php'
103 test_data, test_data_json = \
104 self._normalize_api_url_tester(test_api_url)
105 print (test_data, test_data_json)
107 self._api_url = test_api_url
111 def _normalize_api_url_tester(self, api_url):
112 data = self._fetch_http(api_url, {'action': 'query',
117 data_json = json.loads(data)
118 # may as well set the version
120 version_string = data_json['query']['general']['generator']
121 self._mediawiki_version = version_string.split(' ', 1)[1]
124 return (data, data_json)
128 def login(self, user, passwd, token=None):
130 Convenience function for logging into the wiki. It should never be
131 necessary to provide a token argument; it is part of the login process
132 since MediaWiki 1.15.3 (see MediaWiki bug 23076).
134 data = {'action': 'login',
136 'lgpassword': passwd}
138 data['lgtoken'] = token
139 result = self.call(data)
140 if result['login']['result'] == 'Success':
141 self._high_limits = None
143 elif result['login']['result'] == 'NeedToken' and not token:
144 return self.login(user, passwd, result['login']['token'])
150 Conveinence function for logging out of the wiki.
152 data = {'action': 'logout'}
154 self._high_limits = None
157 def limits(self, low, high):
159 Convenience function for determining appropriate limits in the API. If
160 the logged in user has the "apihighlimits" right, it will return the
161 high argument; otherwise it will return the low argument.
163 if self._high_limits == None:
164 result = self.call({'action': 'query',
167 self._high_limits = 'apihighlimits' in \
168 result['query']['userinfo']['rights']
169 if self._high_limits:
174 def namespaces(self, psuedo=True):
176 Fetches a list of namespaces for this wiki.
178 if self._namespaces == None:
179 result = self.call({'action': 'query',
181 'siprop': 'namespaces'})
182 self._namespaces = {}
183 self._psuedo_namespaces = {}
184 for nsid in result['query']['namespaces']:
186 self._namespaces[int(nsid)] = \
187 result['query']['namespaces'][nsid]['*']
189 self._psuedo_namespaces[int(nsid)] = \
190 result['query']['namespaces'][nsid]['*']
193 retval.update(self._namespaces)
194 retval.update(self._psuedo_namespaces)
197 return self._namespaces
200 def parse_date(date):
202 Converts dates provided by the MediaWiki API into datetime.datetime
205 return iso8601.parse_date(date)
208 __author__ = 'Ian Weller <ian@ianweller.org>'
209 __version__ = '1.0.1'
210 DEFAULT_UA = 'python-simplemediawiki/%s ' + \
211 '+https://github.com/ianweller/python-simplemediawiki' \