Add permission reset logic with configurable timeout in RequestPermis… (#221)

…sionPolicy

## Description

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also include relevant motivation and context. List any dependencies that
are required for this change.

Fixes # (issue)

## Type of change

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- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Intermediate change (work in progress)

## How Has This Been Tested?

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- [ ] Test A
- [ ] Test B

## Checklist:

- [ ] Performed a self-review of my own code
- [ ] npm test passes on your machine
- [ ] New tests added or existing tests modified to cover all changes
- [ ] Code conforms with the style guide
- [ ] API Documentation in code was updated
- [ ] Any dependent changes have been merged and published in downstream
modules

Author: hitesh-sourcefuse

packages/backend/src/plugins/permission.ts

@@ -42,6 +42,7 @@ class RequestPermissionPolicy implements PermissionPolicy {
     //type "(string & {})" used to provide auto complate in the typescript
     Record<string, ('admin' | 'write' | 'read' | 'none') | (string & {})> //NOSONAR
   > = {};
+  readonly permissionResetOffset = 1000 * 60 * 60 * 0.5; // 1/5 hour
 
   constructor(
     protected readonly tokenManager: AuthService,
@@ -230,6 +231,13 @@ class RequestPermissionPolicy implements PermissionPolicy {
     this.logger.debug('Permission resolution benchmark', {
       totalTimeInMilliSeconds: startTimeBenchmark - performance.now(),
     });
+
+    if (_.size(this.userRepoPermissions[userEntityRef]) !== 0) {
+      setTimeout(() => {
+        // after time delete the permission to refetch it
+        delete this.userRepoPermissions[userEntityRef];
+      }, this.permissionResetOffset);
+    }
     return this.userRepoPermissions[userEntityRef];
   }