code format

api/lib/perm/acl/acl.py

@@ -0,0 +1,139 @@
+# -*- coding:utf-8 -*-
+
+import functools
+
+import six
+
+from flask import current_app, g, request
+from flask import session, abort
+
+from api.extensions import cache
+
+
+def get_access_token():
+    return
+
+
+class AccessTokenCache(object):
+    @classmethod
+    def get(cls):
+        if cache.get("AccessToken") is not None:
+            return cache.get("AccessToken")
+
+        res = get_access_token() or ""
+
+        cache.set("AccessToken", res, timeout=60 * 60)
+        return res
+
+    @classmethod
+    def clean(cls):
+        cache.clear("AccessToken")
+
+
+class ACLManager(object):
+    def __init__(self):
+        self.access_token = AccessTokenCache.get()
+        self.acl_session = dict(uid=session.get("uid"),
+                                token=self.access_token)
+
+        self.user_info = session["acl"] if "acl" in session else {}
+
+    def add_resource(self, name, resource_type_name=None):
+        pass
+
+    def grant_resource_to_role(self, name, role, resource_type_name=None):
+        pass
+
+    def del_resource(self, name, resource_type_name=None):
+        pass
+
+    def get_user_info(self, username):
+        return dict()
+
+    def get_resources(self, resource_type_name=None):
+        if "acl" not in session:
+            abort(405)
+        return []
+
+    def has_permission(self, resource_name, resource_type, perm):
+        if "acl" not in session:
+            abort(405)
+        return True
+
+
+def validate_permission(resources, resource_type, perm):
+    if not resources:
+        return
+
+    if current_app.config.get("USE_ACL"):
+        if g.user.username == "worker":
+            return
+
+        resources = [resources] if isinstance(resources, six.string_types) else resources
+        for resource in resources:
+            if not ACLManager().has_permission(resource, resource_type, perm):
+                return abort(403, "has no permission")
+
+
+def can_access_resources(resource_type):
+    def decorator_can_access_resources(func):
+        @functools.wraps(func)
+        def wrapper_can_access_resources(*args, **kwargs):
+            if current_app.config.get("USE_ACL"):
+                res = ACLManager().get_resources(resource_type)
+                result = {i.get("name"): i.get("permissions") for i in res}
+                if hasattr(g, "resources"):
+                    g.resources.update({resource_type: result})
+                else:
+                    g.resources = {resource_type: result}
+            return func(*args, **kwargs)
+        return wrapper_can_access_resources
+    return decorator_can_access_resources
+
+
+def has_perm(resources, resource_type, perm):
+    def decorator_has_perm(func):
+        @functools.wraps(func)
+        def wrapper_has_perm(*args, **kwargs):
+            if not resources:
+                return
+
+            if current_app.config.get("USE_ACL"):
+                validate_permission(resources, resource_type, perm)
+
+            return func(*args, **kwargs)
+        return wrapper_has_perm
+    return decorator_has_perm
+
+
+def has_perm_from_args(arg_name, resource_type, perm, callback=None):
+    def decorator_has_perm(func):
+        @functools.wraps(func)
+        def wrapper_has_perm(*args, **kwargs):
+            if not arg_name:
+                return
+            resource = request.view_args.get(arg_name) or request.values.get(arg_name)
+            if callback is not None and resource:
+                resource = callback(resource)
+
+            if current_app.config.get("USE_ACL") and resource:
+                validate_permission(resource, resource_type, perm)
+
+            return func(*args, **kwargs)
+        return wrapper_has_perm
+    return decorator_has_perm
+
+
+def role_required(role_name):
+    def decorator_role_required(func):
+        @functools.wraps(func)
+        def wrapper_role_required(*args, **kwargs):
+            if not role_name:
+                return
+
+            if current_app.config.get("USE_ACL"):
+                if role_name not in session.get("acl", {}).get("parentRoles", []):
+                    return abort(403, "Role {0} is required".format(role_name))
+            return func(*args, **kwargs)
+        return wrapper_role_required
+    return decorator_role_required