adverse-sapphire•7mo ago

implement access control

How to implement role based access control using strapi4. Using the Example of posts and categories: I want that the admin to have full access of all resources; The editor should have only access to create, list, edit his own posts and don't see the categories menu.

18 Replies

kapa.ai•7mo ago

Hi @Sly. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- I'm sorry, but the information provided in the extracts is about implementing access control in Refine, a React-based framework, not Strapi. However, I can guide you on how to implement role-based access control in a Refine application. In Refine, you can use the accessControlProvider to implement role-based access control. This provider has a can method that you can use to enforce your access control policies. Here's an example of how you can define roles and permissions in Refine:

import { newEnforcer } from "casbin";  
import { model, adapter } from "./accessControl";  

const App: React.FC = () => {  
 return (  
 <BrowserRouter>  
 <Refine  
 accessControlProvider={{  
 can: async ({ resource, action }) => {  
 const enforcer = await newEnforcer(model, adapter);  
 const can = await enforcer.enforce("editor", resource, action);  
 return { can };  
 },  
 }}  
 //...  
 >  
 {/* ... */}  
 </Refine>  
 </BrowserRouter>  
 );  
};  

export default App;

import { newEnforcer } from "casbin";  
import { model, adapter } from "./accessControl";  

const App: React.FC = () => {  
 return (  
 <BrowserRouter>  
 <Refine  
 accessControlProvider={{  
 can: async ({ resource, action }) => {  
 const enforcer = await newEnforcer(model, adapter);  
 const can = await enforcer.enforce("editor", resource, action);  
 return { can };  
 },  
 }}  
 //...  
 >  
 {/* ... */}  
 </Refine>  
 </BrowserRouter>  
 );  
};  

export default App;

In this example, the can method uses the enforce method from the casbin library to check if the current user (in this case, an "editor") has permission to perform a certain action on a certain resource. You can define your access control policies using the MemoryAdapter from casbin. Here's an example:

export const adapter = new MemoryAdapter(`  
p, admin, posts, (list)|(create)  
p, admin, users, (list)|(create)  
p, admin, categories, (list)|(create)  
  
p, editor, posts, (list)|(create)  
p, editor, categories, list  
`);

export const adapter = new MemoryAdapter(`  
p, admin, posts, (list)|(create)  
p, admin, users, (list)|(create)  
p, admin, categories, (list)|(create)  
  
p, editor, posts, (list)|(create)  
p, editor, categories, list  
`);

In this example, the "admin" role has permission to list and create posts, users, and categories. The "editor" role has permission to list and create posts, and to list categories. For more detailed information, you can refer to the Refine Access Control documentation (https://refine.dev/docs/advanced-tutorials/access-control). Please note that this information is specific to Refine and may not directly apply to Strapi. For Strapi-specific information, I recommend checking the Strapi documentation or community resources. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7mo ago

<@1172098337760096258> kapa.ai is still learning and improving, please let us know how it did by reacting below

adverse-sapphire•7mo ago

@kapa.ai how to hide a menu based on a strapi4 role

kapa.ai•7mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- In Refine, you can hide a menu item based on a user's role by using the meta.hide property of a resource. However, the information provided in the extracts does not include specific details on how to do this with Strapi roles. Here's an example of how you can hide a resource from the menu in Refine:

import { Refine } from "@refinedev/core";  
  
const App = () => (  
 <Refine  
 ...  
 resources={[  
 {  
 name: "posts",  
 list: "/posts",  
 meta: {  
 label: "Posts",  
 icon: "📝",  
 },  
 },  
 {  
 name: "users",  
 list: "/users",  
 meta: {  
 // Users resource will be hidden from the menu but will be accessible via the URL  
 hide: true,  
 },  
 },  
 ]}  
 />  
);

import { Refine } from "@refinedev/core";  
  
const App = () => (  
 <Refine  
 ...  
 resources={[  
 {  
 name: "posts",  
 list: "/posts",  
 meta: {  
 label: "Posts",  
 icon: "📝",  
 },  
 },  
 {  
 name: "users",  
 list: "/users",  
 meta: {  
 // Users resource will be hidden from the menu but will be accessible via the URL  
 hide: true,  
 },  
 },  
 ]}  
 />  
);

In this example, the "users" resource will be hidden from the menu but will still be accessible via the URL. For more detailed information, you can refer to the Refine useMenu documentation (https://refine.dev/docs/core/hooks/utilities/use-menu/). Please note that this information is specific to Refine and may not directly apply to Strapi. For Strapi-specific information, I recommend checking the Strapi documentation or community resources. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7mo ago

<@1172098337760096258> kapa.ai is still learning and improving, please let us know how it did by reacting below

adverse-sapphire•7mo ago

@kapa.ai check the user role from strapi and if the role is editor, hide the resource categories

kapa.ai•7mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To implement role-based access control in Refine, you can use the accessControlProvider prop in the Refine component. However, the extracts provided do not contain specific information on how to check a user's role from Strapi and hide a resource based on that role. Here's a general example of how you can use the accessControlProvider to check a user's role and hide a resource based on that role:

<Refine
    ...
    accessControlProvider={{
        can: async ({ resource, action }) => {
            const roles = (await authProvider.getPermissions?.() as string[]) || [];
            if (resource === "categories" && roles.includes('editor')) {
                return {
                    can: false,
                    reason: "Unauthorized",
                };
            }
            return { can: true };
        },
    }}
    resources={[
        {
            name: 'categories',
            list: '/categories',
            create: '/categories/create',
            edit: '/categories/edit/:id',
            show: '/categories/show/:id',
            meta: {
                hide: viewType === 'editor',
                icon: <IconCategory />,
            }
        },
        ...
    ]}
/>

<Refine
    ...
    accessControlProvider={{
        can: async ({ resource, action }) => {
            const roles = (await authProvider.getPermissions?.() as string[]) || [];
            if (resource === "categories" && roles.includes('editor')) {
                return {
                    can: false,
                    reason: "Unauthorized",
                };
            }
            return { can: true };
        },
    }}
    resources={[
        {
            name: 'categories',
            list: '/categories',
            create: '/categories/create',
            edit: '/categories/edit/:id',
            show: '/categories/show/:id',
            meta: {
                hide: viewType === 'editor',
                icon: <IconCategory />,
            }
        },
        ...
    ]}
/>

In this example, the can method checks if the current user's role includes 'editor' and the resource is 'categories'. If both conditions are met, it returns can: false, which means the user is not authorized to access the 'categories' resource. The meta.hide property of the 'categories' resource is set to viewType === 'editor', which means the 'categories' resource will be hidden from the menu if the current user's role is 'editor'. Please note that this is a general example and may need to be adjusted based on your specific requirements and the structure of your Strapi roles. For more detailed information, you can refer to the Refine Access Control documentation (https://refine.dev/docs/advanced-tutorials/access-control). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7mo ago

<@1172098337760096258> kapa.ai is still learning and improving, please let us know how it did by reacting below

adverse-sapphire•7mo ago

@kapa.ai how to list only posts created by the current user logged in

kapa.ai•7mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- In Refine, you can use the useList hook to fetch a list of resources. To fetch only the posts created by the currently logged-in user, you can use the filters property of the useList hook. Here's an example:

import { useList } from "@refinedev/core";  

const MyComponent = () => {  
 const { data } = useList({  
 resource: "posts",  
 filters: [  
 {  
 field: "createdBy",  
 operator: "eq",  
 value: "currentUserId",  // replace this with the id of the currently logged-in user
 },  
 ],  
 });  
};

import { useList } from "@refinedev/core";  

const MyComponent = () => {  
 const { data } = useList({  
 resource: "posts",  
 filters: [  
 {  
 field: "createdBy",  
 operator: "eq",  
 value: "currentUserId",  // replace this with the id of the currently logged-in user
 },  
 ],  
 });  
};

In this example, the useList hook fetches a list of posts where the createdBy field is equal to the id of the currently logged-in user. Please note that this example assumes that your posts have a createdBy field that stores the id of the user who created the post. You may need to adjust this example based on the actual structure of your posts. For more detailed information, you can refer to the Refine useList documentation (https://refine.dev/docs/core/hooks/data/useList/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7mo ago

<@1172098337760096258> kapa.ai is still learning and improving, please let us know how it did by reacting below

adverse-sapphire•7mo ago

@kapa.ai viewType has error Cannot find name

kapa.ai•7mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- The error message "Cannot find name 'viewType'" suggests that the variable viewType is not defined in your code. In the provided extracts, there's no mention of a viewType variable. It seems like viewType is intended to hold the role of the currently logged-in user. You would typically fetch this information from your authentication provider. Here's an example of how you might define viewType:

const viewType = useRole(); // replace useRole with your actual method of fetching the user's role

const viewType = useRole(); // replace useRole with your actual method of fetching the user's role

In this example, useRole is a hypothetical hook that fetches the role of the currently logged-in user. You would need to replace useRole with your actual method of fetching the user's role. Please note that this is a general example and may need to be adjusted based on your specific requirements and the structure of your authentication provider. For more detailed information, you can refer to the Refine documentation (https://refine.dev/docs). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7mo ago

<@1172098337760096258> kapa.ai is still learning and improving, please let us know how it did by reacting below

sensitive-blue•7mo ago

Hey @Sly you can use useGetIdentity hook to get the current user. https://refine.dev/docs/authentication/hooks/use-get-identity/ And pass it to the useList or useTable hook as bot mentioned. If you are implementing Access Control, I suggest reading our Authorization guide, it should give you a great idea: https://refine.dev/docs/guides-concepts/authorization/

useGetIdentity | refine

useGetIdentity data hook from Refine is a modified version of react-query's useQuery for retrieving user data

Authorization | refine

Authorization is a key aspect of security and user experience in web applications. Whether you are building a complex enterprise-level application or a simple CRUD interface, Refine's authorization system provides the necessary infrastructure to protect your resources and ensure that users interact with your application in a secure and controlle...

adverse-sapphire•7mo ago

@Batu thanks I'll try it @Sly My main difficult is how to fetch the user role from strapi @Sly I tried to populate the role but it's still not working @kapa.ai How can I fetch the user role from strapi?

kapa.ai•7mo ago

Let me check the knowledge base for you. One moment! :books: @Sly That's a great question, but unfortunately I am only capable of responding to a maximum of five questions per thread. Don't hesitate to create a new thread for any further questions you have though. I'm here to help!

sensitive-blue•7mo ago

You should check strapi documentation for that, as it's not related to Refine, our bot can't help you. https://stackoverflow.com/questions/71847269/how-retrieve-users-role-with-strapi

Stack Overflow

How retrieve user's role with Strapi?

I would like to retrieve the role associated to specific user using strapi, but I can't.I tried this query but still not getting the role. Can anyone help me ? Thank you