我使用Cornice和Pyramid与ACL Auth。这是older question的副本,我在金字塔改变时重新询问。
Current docs表示已将pyramid.security.has_permission
替换为request.has_permission
,其中context
具有可选的has_permission
arg。我尝试在所有服务的循环中使用request
来查看当前用户(@resource
)可以访问哪些服务。
最终目标是动态扫描所有Cornice服务(即使用Cornice' 'view'
装饰器查看文件)以查看哪些服务器已获得授权以获得给定权限(即has_permission
)当前用户。除了from cornice import service
# Get our list of services
services = service.get_services()
# Assume we have an authenticated user logged in, thus attaching auth info to request
for svc in services:
context = magic_context_function(svc)
if request.has_permission('view', context) == False:
# Code will go here to hide endpoint documentation for this endpoint
之外,我还可以使用其他方式执行此操作。
此知识的用例是提供Swagger Spec JSON文档,该文档仅记录当前用户可用的API端点。
我希望代码看起来像这样:
<asp:CustomValidator ID="CustomValidator1" runat="server" SetFocusOnError="true" Display="Dynamic" ValidateEmptyText="true" ControlToValidate="tbFirstName" ClientValidationFunction="CVH.createFunction(notEmpty, 'tbFirstName','tbFirstNameRequired')"></asp:CustomValidator>
答案 0 :(得分:1)
似乎答案应该是使用view_execution_permitted(context, request, name=''),但我无法使用任意视图名称,因为name
arg与cornice.service.name
不匹配值。
但是,这是Pyramid issue on Github的半解决方案。您需要一些导入才能使链接的解决方案正常工作(更好)。这是完整的代码
from pyramid.security import _get_registry, Allowed
from pyramid.interfaces import IRouteRequest, IRequest, IViewClassifier, ISecuredView, IView
from zope.interface import providedBy
def route_view_execution_permitted(context, request, route_name, name=''):
reg = _get_registry(request)
context_iface = providedBy(context)
request_iface = reg.queryUtility(
IRouteRequest,
name=route_name,
default=IRequest)
provides = (IViewClassifier, request_iface, context_iface)
view = reg.adapters.lookup(provides, ISecuredView, name=name)
if view is None:
view = reg.adapters.lookup(provides, IView, name=name)
if view is None:
raise TypeError('No registered view satisfies the constraints. '
'It would not make sense to claim that this view '
'"is" or "is not" permitted.')
return Allowed(
'Allowed: view name %r in context %r for route %r (no permission defined)' %
(name, context, route_name))
return view.__permitted__(context, request)
可以使用上面的函数来确定当前用户(从request
对象确定)是否能够访问服务(按名称),如下所示:
from cornice import service
services = service.get_services()
for svc in services:
view_permitted = route_view_execution_permitted(request.context, request, svc.name)
if view_permitted == True:
# Do something interesting...
我发现上述解决方案有两个不足之处:
svc
循环的每次迭代都会因某种原因打开与API的新连接。也许有人可以看到改善上述答案的方法。与此同时,这是一个解决方案,使用附加到每个服务的ACL,然后确定当前request.effective_principals
是否匹配。
# Now see if current user meets ACL requirements for any permission
is_permitted = None # set our default.
for ace in acl:
for principal in request.effective_principals:
if ace[1] == principal:
is_permitted = True if ace[0] == Allow else False
break
if is_permitted is not None:
break
if is_permitted is True:
# Do something interesting...
这里的弱点是:
@resource
- 装饰的服务类,不 @view
- 装饰的方法,这些方法可能拥有自己的权限或acls。 这可以通过以下方式解决:
for method, view, args in service.definitions:
if 'permission' in args:
# Now start looking at permission to see if they match what's given by the parent ACL in the resource class
# Also, the special "__no_permission_required__" value means we should not have a Security Requirement Object
if args['permission'] == NO_PERMISSION_REQUIRED :
# Interesting....