bbf6d9b026
Bugfix for feeds
- removed categories related and up
- load new books now working
- category random now working
login page is free of non accessible elements
boolean custom column is vivible in UI
books with only with certain languages can be shown
book shelfs can be deleted from UI
Anonymous user view is more resticted
Added browse of series in sidebar
Dependencys in vendor folder are updated to newer versions (licencs files are now present)
Bugfix editing Authors names
Made upload on windows working
252 lines
8 KiB
Python
252 lines
8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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requests.auth
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~~~~~~~~~~~~~
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This module contains the authentication handlers for Requests.
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"""
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import os
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import re
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import time
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import hashlib
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import threading
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from base64 import b64encode
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from .compat import urlparse, str
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from .cookies import extract_cookies_to_jar
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from .utils import parse_dict_header, to_native_string
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from .status_codes import codes
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CONTENT_TYPE_FORM_URLENCODED = 'application/x-www-form-urlencoded'
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CONTENT_TYPE_MULTI_PART = 'multipart/form-data'
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def _basic_auth_str(username, password):
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"""Returns a Basic Auth string."""
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authstr = 'Basic ' + to_native_string(
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b64encode(('%s:%s' % (username, password)).encode('latin1')).strip()
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)
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return authstr
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class AuthBase(object):
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"""Base class that all auth implementations derive from"""
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def __call__(self, r):
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raise NotImplementedError('Auth hooks must be callable.')
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class HTTPBasicAuth(AuthBase):
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"""Attaches HTTP Basic Authentication to the given Request object."""
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def __init__(self, username, password):
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self.username = username
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self.password = password
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def __eq__(self, other):
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return all([
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self.username == getattr(other, 'username', None),
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self.password == getattr(other, 'password', None)
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])
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def __ne__(self, other):
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return not self == other
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def __call__(self, r):
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r.headers['Authorization'] = _basic_auth_str(self.username, self.password)
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return r
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class HTTPProxyAuth(HTTPBasicAuth):
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"""Attaches HTTP Proxy Authentication to a given Request object."""
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def __call__(self, r):
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r.headers['Proxy-Authorization'] = _basic_auth_str(self.username, self.password)
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return r
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class HTTPDigestAuth(AuthBase):
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"""Attaches HTTP Digest Authentication to the given Request object."""
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def __init__(self, username, password):
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self.username = username
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self.password = password
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# Keep state in per-thread local storage
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self._thread_local = threading.local()
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def init_per_thread_state(self):
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# Ensure state is initialized just once per-thread
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if not hasattr(self._thread_local, 'init'):
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self._thread_local.init = True
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self._thread_local.last_nonce = ''
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self._thread_local.nonce_count = 0
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self._thread_local.chal = {}
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self._thread_local.pos = None
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self._thread_local.num_401_calls = None
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def build_digest_header(self, method, url):
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"""
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:rtype: str
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"""
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realm = self._thread_local.chal['realm']
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nonce = self._thread_local.chal['nonce']
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qop = self._thread_local.chal.get('qop')
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algorithm = self._thread_local.chal.get('algorithm')
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opaque = self._thread_local.chal.get('opaque')
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hash_utf8 = None
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if algorithm is None:
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_algorithm = 'MD5'
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else:
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_algorithm = algorithm.upper()
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# lambdas assume digest modules are imported at the top level
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if _algorithm == 'MD5' or _algorithm == 'MD5-SESS':
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def md5_utf8(x):
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if isinstance(x, str):
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x = x.encode('utf-8')
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return hashlib.md5(x).hexdigest()
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hash_utf8 = md5_utf8
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elif _algorithm == 'SHA':
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def sha_utf8(x):
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if isinstance(x, str):
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x = x.encode('utf-8')
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return hashlib.sha1(x).hexdigest()
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hash_utf8 = sha_utf8
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KD = lambda s, d: hash_utf8("%s:%s" % (s, d))
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if hash_utf8 is None:
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return None
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# XXX not implemented yet
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entdig = None
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p_parsed = urlparse(url)
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#: path is request-uri defined in RFC 2616 which should not be empty
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path = p_parsed.path or "/"
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if p_parsed.query:
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path += '?' + p_parsed.query
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A1 = '%s:%s:%s' % (self.username, realm, self.password)
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A2 = '%s:%s' % (method, path)
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HA1 = hash_utf8(A1)
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HA2 = hash_utf8(A2)
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if nonce == self._thread_local.last_nonce:
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self._thread_local.nonce_count += 1
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else:
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self._thread_local.nonce_count = 1
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ncvalue = '%08x' % self._thread_local.nonce_count
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s = str(self._thread_local.nonce_count).encode('utf-8')
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s += nonce.encode('utf-8')
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s += time.ctime().encode('utf-8')
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s += os.urandom(8)
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cnonce = (hashlib.sha1(s).hexdigest()[:16])
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if _algorithm == 'MD5-SESS':
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HA1 = hash_utf8('%s:%s:%s' % (HA1, nonce, cnonce))
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if not qop:
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respdig = KD(HA1, "%s:%s" % (nonce, HA2))
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elif qop == 'auth' or 'auth' in qop.split(','):
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noncebit = "%s:%s:%s:%s:%s" % (
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nonce, ncvalue, cnonce, 'auth', HA2
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)
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respdig = KD(HA1, noncebit)
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else:
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# XXX handle auth-int.
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return None
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self._thread_local.last_nonce = nonce
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# XXX should the partial digests be encoded too?
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base = 'username="%s", realm="%s", nonce="%s", uri="%s", ' \
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'response="%s"' % (self.username, realm, nonce, path, respdig)
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if opaque:
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base += ', opaque="%s"' % opaque
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if algorithm:
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base += ', algorithm="%s"' % algorithm
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if entdig:
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base += ', digest="%s"' % entdig
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if qop:
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base += ', qop="auth", nc=%s, cnonce="%s"' % (ncvalue, cnonce)
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return 'Digest %s' % (base)
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def handle_redirect(self, r, **kwargs):
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"""Reset num_401_calls counter on redirects."""
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if r.is_redirect:
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self._thread_local.num_401_calls = 1
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def handle_401(self, r, **kwargs):
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"""
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Takes the given response and tries digest-auth, if needed.
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:rtype: requests.Response
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"""
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if self._thread_local.pos is not None:
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# Rewind the file position indicator of the body to where
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# it was to resend the request.
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r.request.body.seek(self._thread_local.pos)
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s_auth = r.headers.get('www-authenticate', '')
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if 'digest' in s_auth.lower() and self._thread_local.num_401_calls < 2:
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self._thread_local.num_401_calls += 1
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pat = re.compile(r'digest ', flags=re.IGNORECASE)
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self._thread_local.chal = parse_dict_header(pat.sub('', s_auth, count=1))
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# Consume content and release the original connection
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# to allow our new request to reuse the same one.
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r.content
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r.close()
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prep = r.request.copy()
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extract_cookies_to_jar(prep._cookies, r.request, r.raw)
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prep.prepare_cookies(prep._cookies)
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prep.headers['Authorization'] = self.build_digest_header(
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prep.method, prep.url)
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_r = r.connection.send(prep, **kwargs)
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_r.history.append(r)
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_r.request = prep
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return _r
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self._thread_local.num_401_calls = 1
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return r
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def __call__(self, r):
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# Initialize per-thread state, if needed
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self.init_per_thread_state()
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# If we have a saved nonce, skip the 401
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if self._thread_local.last_nonce:
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r.headers['Authorization'] = self.build_digest_header(r.method, r.url)
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try:
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self._thread_local.pos = r.body.tell()
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except AttributeError:
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# In the case of HTTPDigestAuth being reused and the body of
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# the previous request was a file-like object, pos has the
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# file position of the previous body. Ensure it's set to
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# None.
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self._thread_local.pos = None
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r.register_hook('response', self.handle_401)
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r.register_hook('response', self.handle_redirect)
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self._thread_local.num_401_calls = 1
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return r
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def __eq__(self, other):
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return all([
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self.username == getattr(other, 'username', None),
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self.password == getattr(other, 'password', None)
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])
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def __ne__(self, other):
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return not self == other
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