Python urldispatch._compile_route函数代码示例

    def auth_request(request):

        response = None

        # ignore static routes for authentication
        if 'static' in request.path.split('/'):
            return handler(request)

        logged_in_user = request.session.get('logged_in_user', None)

        protected_routes = []
        routes = DBSession.query(RoutePermission.route_name).distinct().all()

        for R in routes:
            protected_routes.append(R[0])

        #print(protected_routes)
        matched_routename = None

        for r in request.registry.introspector.get_category('routes'):
            R = r['introspectable']

            matcher, generator = _compile_route(R['pattern'])

            if type(matcher(request.path)) == types.DictionaryType:
                #print(R['name'] + ':' + R['pattern'])
                matched_routename = R['name']
                break

        # Check routes from protected routes here.
        if matched_routename and matched_routename in protected_routes:
            # first check if there is any static permission given and if yes then validate routes against that permission
            user_permissions = []
            if request.session.get('auth_static_permission', None):
                user_permissions.append(request.session.get('auth_static_permission', None))
            else:
                if not logged_in_user:
                    return HTTPForbidden()

                # get user permissions
                user_permissions = request.session.get('auth_user_permissions', [])

            # get route permissions for the current route
            # match if there are any common permissions and check for all matching request methods
            has_permission = DBSession.query(func.count(RoutePermission.permission)).filter(
                                            RoutePermission.route_name == matched_routename).filter(
                                            or_(RoutePermission.method == 'ALL',
                                                RoutePermission.method == request.method)).filter(
                                            RoutePermission.permission.in_(user_permissions)).scalar()

            if has_permission > 0:
                return handler(request)
            else:
                return HTTPForbidden()

        else:
            return handler(request)

    def auth_request(request):

        response = None

        # ignore static routes for authentication
        if 'static' in request.path.split('/'):
            return handler(request)

        logged_in_user = request.session.get('logged_in_user', None)

        protected_routes = []
        routes = db.query(RoutePermission.route_name).distinct().all()

        for R in routes:
            protected_routes.append(R[0])

        #print(protected_routes)
        matched_routename = None

        for r in request.registry.introspector.get_category('routes'):
            R = r['introspectable']

            matcher, generator = _compile_route(R['pattern'])

            if isinstance(matcher(request.path), dict):
                #print(R['name'] + ':' + R['pattern'])
                matched_routename = R['name']
                break

        # Check routes from protected routes here.
        if matched_routename and matched_routename in protected_routes:
            # first check if there is any static permission given and if yes then validate routes against that permission
            if not logged_in_user:
                return HTTPForbidden()

            if is_allowed(request, matched_routename, method=['ALL', request.method], check_route=False):
                return handler(request)
            else:
                return HTTPForbidden()

        else:
            return handler(request)

 def generates(self, pattern, dict, result):
     from pyramid.urldispatch import _compile_route
     self.assertEqual(_compile_route(pattern)[1](dict), result)

 def matches(self, pattern, path, expected):
     from pyramid.urldispatch import _compile_route
     matcher = _compile_route(pattern)[0]
     result = matcher(path)
     self.assertEqual(result, expected)

 def _callFUT(self, pattern):
     from pyramid.urldispatch import _compile_route
     return _compile_route(pattern)

#.........这里部分代码省略.........
            if header_val is None:
                return header_name in request.headers
            val = request.headers.get(header_name)
            if val is None:
                return False
            return header_val.match(val) is not None
        header_predicate.__text__ = text
        weights.append(1 << 5)
        predicates.append(header_predicate)
        h.update(bytes_('header:%r=%r' % (header_name, header_val)))

    if accept is not None:
        def accept_predicate(context, request):
            return accept in request.accept
        accept_predicate.__text__ = "accept = %s" % accept
        weights.append(1 << 6)
        predicates.append(accept_predicate)
        h.update(bytes_('accept:%r' % accept))

    if containment is not None:
        def containment_predicate(context, request):
            return find_interface(context, containment) is not None
        containment_predicate.__text__ = "containment = %s" % containment
        weights.append(1 << 7)
        predicates.append(containment_predicate)
        h.update(bytes_('containment:%r' % hash(containment)))

    if request_type is not None:
        def request_type_predicate(context, request):
            return request_type.providedBy(request)
        text = "request_type = %s"
        request_type_predicate.__text__ = text % request_type
        weights.append(1 << 8)
        predicates.append(request_type_predicate)
        h.update(bytes_('request_type:%r' % hash(request_type)))

    if match_param is not None:
        if isinstance(match_param, string_types):
            match_param, match_param_val = match_param.split('=', 1)
            match_param = {match_param: match_param_val}
        text = "match_param %s" % match_param
        def match_param_predicate(context, request):
            for k, v in match_param.items():
                if request.matchdict.get(k) != v:
                    return False
            return True
        match_param_predicate.__text__ = text
        weights.append(1 << 9)
        predicates.append(match_param_predicate)
        h.update(bytes_('match_param:%r' % match_param))

    if custom:
        for num, predicate in enumerate(custom):
            if getattr(predicate, '__text__', None) is None:
                text = '<unknown custom predicate>'
                try:
                    predicate.__text__ = text
                except AttributeError:
                    # if this happens the predicate is probably a classmethod
                    if hasattr(predicate, '__func__'):
                        predicate.__func__.__text__ = text
                    else: # pragma: no cover ; 2.5 doesn't have __func__
                        predicate.im_func.__text__ = text
            predicates.append(predicate)
            # using hash() here rather than id() is intentional: we
            # want to allow custom predicates that are part of
            # frameworks to be able to define custom __hash__
            # functions for custom predicates, so that the hash output
            # of predicate instances which are "logically the same"
            # may compare equal.
            h.update(bytes_('custom%s:%r' % (num, hash(predicate))))
        weights.append(1 << 10)

    if traverse is not None:
        # ``traverse`` can only be used as a *route* "predicate"; it
        # adds 'traverse' to the matchdict if it's specified in the
        # routing args.  This causes the ResourceTreeTraverser to use
        # the resolved traverse pattern as the traversal path.
        from pyramid.urldispatch import _compile_route
        _, tgenerate = _compile_route(traverse)
        def traverse_predicate(context, request):
            if 'traverse' in context:
                return True
            m = context['match']
            tvalue = tgenerate(m)
            m['traverse'] = traversal_path_info(tvalue)
            return True
        # This isn't actually a predicate, it's just a infodict
        # modifier that injects ``traverse`` into the matchdict.  As a
        # result, the ``traverse_predicate`` function above always
        # returns True, and we don't need to update the hash or attach
        # a weight to it
        predicates.append(traverse_predicate)

    score = 0
    for bit in weights:
        score = score | bit
    order = (MAX_ORDER - score) / (len(predicates) + 1)
    phash = h.hexdigest()
    return order, predicates, phash

 def __init__(self, val, config):
     _, self.tgenerate = _compile_route(val)
     self.val = val

            # using hash() here rather than id() is intentional: we
            # want to allow custom predicates that are part of
            # frameworks to be able to define custom __hash__
            # functions for custom predicates, so that the hash output
            # of predicate instances which are "logically the same"
            # may compare equal.
            h.update('custom%s:%r' % (num, hash(predicate)))
        weights.append(1 << 10)

    if traverse is not None:
        # ``traverse`` can only be used as a *route* "predicate"; it
        # adds 'traverse' to the matchdict if it's specified in the
        # routing args.  This causes the ResourceTreeTraverser to use
        # the resolved traverse pattern as the traversal path.
        from pyramid.urldispatch import _compile_route
        _, tgenerate = _compile_route(traverse)
        def traverse_predicate(context, request):
            if 'traverse' in context:
                return True
            m = context['match']
            tvalue = tgenerate(m)
            m['traverse'] = traversal_path(tvalue)
            return True
        # This isn't actually a predicate, it's just a infodict
        # modifier that injects ``traverse`` into the matchdict.  As a
        # result, the ``traverse_predicate`` function above always
        # returns True, and we don't need to update the hash or attach
        # a weight to it
        predicates.append(traverse_predicate)

    score = 0