Beispiel #1
0
    def authenticate(self, request):
        if not 'HTTP_AUTHORIZATION' in request.META:
            return False

        if not python_digest.is_digest_credential(request.META['HTTP_AUTHORIZATION']):
            return False

        digest_response = python_digest.parse_digest_credentials(
            request.META['HTTP_AUTHORIZATION'])

        if not digest_response:
            _l.debug('authentication failure: supplied digest credentials could not be ' \
                         'parsed: "%s".' % request.META['HTTP_AUTHORIZATION'])
            return False
        
        if not digest_response.realm == self.realm:
            _l.debug('authentication failure: supplied realm "%s" does not match ' \
                         'configured realm "%s".' % ( digest_response.realm, self.realm))
            return False

        if not python_digest.validate_nonce(digest_response.nonce, self.secret_key):
            _l.debug('authentication failure: nonce validation failed.')
            return False

        partial_digest = self._account_storage.get_partial_digest(digest_response.username)
        if not partial_digest:
            _l.debug('authentication failure: no partial digest available for user "%s".' \
                         % digest_response.username)
            return False

        calculated_request_digest = python_digest.calculate_request_digest(
            method=request.method, digest_response=digest_response,
            partial_digest=partial_digest)
        if not calculated_request_digest == digest_response.response:
            _l.debug('authentication failure: supplied request digest does not match ' \
                         'calculated request digest.')
            return False

        if not python_digest.validate_uri(digest_response.uri, request.path):
            _l.debug('authentication failure: digest authentication uri value "%s" does not ' \
                         'match value "%s" from HTTP request line.' % (digest_response.uri,
                                                                       request.path))
            return False

        user = self._account_storage.get_user(digest_response.username)

        if not self._update_existing_nonce(user, digest_response.nonce, digest_response.nc):
            if (python_digest.get_nonce_timestamp(digest_response.nonce) + self.timeout <
                time.time()):
                _l.debug('authentication failure: attempt to establish a new session with ' \
                             'a stale nonce.')
                return False

            if not self._store_nonce(user, digest_response.nonce, digest_response.nc):
                _l.debug('authentication failure: attempt to establish a previously used ' \
                             'or nonce count.')
                return False

        request.user = user
        return True
Beispiel #2
0
    def authenticate(self, request):
        if not 'HTTP_AUTHORIZATION' in request.META:
            return False

        if not python_digest.is_digest_credential(request.META['HTTP_AUTHORIZATION']):
            return False

        try:
            unicode(request.META['HTTP_AUTHORIZATION'], 'utf-8')
        except UnicodeDecodeError:
            return False

        digest_response = python_digest.parse_digest_credentials(
            request.META['HTTP_AUTHORIZATION'])

        if not digest_response:
            _l.debug('authentication failure: supplied digest credentials could not be ' \
                         'parsed: "%s".' % request.META['HTTP_AUTHORIZATION'])
            return False

        if not digest_response.realm == self.realm:
            _l.debug('authentication failure: supplied realm "%s" does not match ' \
                         'configured realm "%s".' % ( digest_response.realm, self.realm))
            return False

        if not python_digest.validate_nonce(digest_response.nonce, self.secret_key):
            _l.debug('authentication failure: nonce validation failed.')
            return False

        partial_digest = self._account_storage.get_partial_digest(digest_response.username)
        if not partial_digest:
            _l.debug('authentication failure: no partial digest available for user "%s".' \
                         % digest_response.username)
            return False

        calculated_request_digest = python_digest.calculate_request_digest(
            method=request.method, digest_response=digest_response,
            partial_digest=partial_digest)
        if not calculated_request_digest == digest_response.response:
            _l.debug('authentication failure: supplied request digest does not match ' \
                         'calculated request digest.')
            if self.failure_callback:
                self.failure_callback(request, digest_response.username)
            return False

        if not python_digest.validate_uri(digest_response.uri, request.path):
            _l.debug('authentication failure: digest authentication uri value "%s" does not ' \
                         'match value "%s" from HTTP request line.' % (digest_response.uri,
                                                                       request.path))
            return False

        user = self._account_storage.get_user(digest_response.username)

        if not self._update_existing_nonce(user, digest_response.nonce, digest_response.nc):
            if (python_digest.get_nonce_timestamp(digest_response.nonce) + self.timeout <
                time.time()):
                _l.debug('authentication failure: attempt to establish a new session with ' \
                             'a stale nonce.')
                return False

            if not self._store_nonce(user, digest_response.nonce, digest_response.nc):
                _l.debug('authentication failure: attempt to establish a previously used ' \
                             'or nonce count.')
                return False

        request.user = user
        return True
Beispiel #3
0
    def authenticate(self, request):
        """
        Base authentication method, all checks here
        """
        if not request.headers.get('authorization'):
            return False
        if not python_digest.is_digest_credential(
                request.headers.get('authorization')):
            return False
        digest_response = python_digest.parse_digest_credentials(
            request.headers.get('authorization'))
        if not digest_response:
            log.debug('authentication failure: supplied digest credentials'
                      ' could not be parsed: "%s".'
                      % request.headers.get('authorization'))
            return False

        if not digest_response.username:
            return False

        if not digest_response.realm == self.realm:
            log.debug('authentication failure: supplied realm "%s"'
                      'does not match configured realm "%s".'
                      % (digest_response.realm, self.realm))
            return False

        if not python_digest.validate_nonce(
                digest_response.nonce, self.secret_key):
            log.debug('authentication failure: nonce validation failed.')
            return False
        partial_digest = self._account_storage.get_partial_digest(
            digest_response.username)

        if not partial_digest:
            log.debug('authentication failure: no partial digest available'
                      ' for user "%s".' % digest_response.username)
            return False

        calculated_request_digest = python_digest.calculate_request_digest(
            method=request.method, digest_response=digest_response,
            partial_digest=partial_digest)

        if not calculated_request_digest == digest_response.response:
            log.debug('authentication failure: supplied request digest'
                      'does not match calculated request digest.')
            return False

        if not python_digest.validate_uri(
                digest_response.uri, urllib.parse.unquote(request.path)):
            log.debug('authentication failure: digest authentication uri value'
                      '"%s" does not match value "%s" from HTTP'
                      'request line.' % (digest_response.uri, request.path))
            return False

        if not self._account_storage.is_admin(digest_response.username):
            log.debug('authentication failure: user not in operator admin.')
            return False

        if hasattr(request,'session') and request.session.data.nonce != digest_response.nonce:
            if (int(python_digest.get_nonce_timestamp(digest_response.nonce))
                    + self.timeout < time.time()):
                log.debug('authentication failure: attempt to establish'
                          ' a new session with a stale nonce.')
                return False
            if not self._store_nonce(digest_response.nonce, request):
                log.debug('authentication failure: attempt to establish'
                          ' a previously used or nonce count.')
                return False
        request.user = self._account_storage.get_by_login(
            digest_response.username)
        return True