Page MenuHomePhorge
Files F33025861

D9662.1768394241.diff
No OneTemporary
Actions

Size
3 KB
Referenced Files
None
Subscribers
None

D9662.1768394241.diff
View Options

diff --git a/lib/permissions/minimally-encoded-thread-permissions.js b/lib/permissions/minimally-encoded-thread-permissions.js
--- a/lib/permissions/minimally-encoded-thread-permissions.js
+++ b/lib/permissions/minimally-encoded-thread-permissions.js
@@ -2,6 +2,7 @@
import invariant from 'invariant';
+import { parseThreadPermissionString } from './prefixes.js';
import type {
ThreadPermission,
ThreadPermissionsInfo,
@@ -70,8 +71,50 @@
return (permissionsBitmask & permissionBitmask) !== BigInt(0);
};
+const baseRolePermissionEncoding = Object.fromEntries(
+ Object.keys(minimallyEncodedThreadPermissions).map((key, idx) => [
+ key,
+ BigInt(idx),
+ ]),
+);
+const propagationPrefixes = Object.freeze({
+ '': BigInt(0),
+ 'descendant_': BigInt(1),
+ 'child_': BigInt(2),
+});
+const filterPrefixes = Object.freeze({
+ '': BigInt(0),
+ 'open_': BigInt(1),
+ 'toplevel_': BigInt(2),
+ 'opentoplevel_': BigInt(3),
+});
+
+// Role Permission Bitmask Structure
+// [9 8 7 6 5 4 3 2 1 0] - bit positions
+// [b b b b b b p p f f] - symbol representation
+// b = basePermission (6 bits)
+// p = propagationPrefix (2 bits)
+// f = filterPrefix (2 bits)
+const rolePermissionToBitmaskHex = (threadRolePermission: string): string => {
+ const parsed = parseThreadPermissionString(threadRolePermission);
+ const basePermissionBits =
+ baseRolePermissionEncoding[parsed.permission] & BigInt(63);
+ const propagationPrefixBits =
+ propagationPrefixes[parsed.propagationPrefix ?? ''] & BigInt(3);
+ const filterPrefixBits =
+ filterPrefixes[parsed.filterPrefix ?? ''] & BigInt(3);
+
+ const bitmask =
+ (basePermissionBits << BigInt(4)) |
+ (propagationPrefixBits << BigInt(2)) |
+ filterPrefixBits;
+
+ return bitmask.toString(16).padStart(3, '0');
+};
+
export {
minimallyEncodedThreadPermissions,
permissionsToBitmaskHex,
hasPermission,
+ rolePermissionToBitmaskHex,
};
diff --git a/lib/permissions/minimally-encoded-thread-permissions.test.js b/lib/permissions/minimally-encoded-thread-permissions.test.js
--- a/lib/permissions/minimally-encoded-thread-permissions.test.js
+++ b/lib/permissions/minimally-encoded-thread-permissions.test.js
@@ -3,6 +3,7 @@
import {
hasPermission,
permissionsToBitmaskHex,
+ rolePermissionToBitmaskHex,
} from './minimally-encoded-thread-permissions.js';
describe('minimallyEncodedThreadPermissions', () => {
@@ -51,3 +52,39 @@
expect(hasPermission(permissionsBitmask, 'edit_message')).toBe(true);
});
});
+
+describe('rolePermissionToBitmaskHex', () => {
+ it('should encode `child_opentoplevel_visible` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_opentoplevel_visible')).toBe(
+ '01b',
+ );
+ });
+
+ it('should encode `child_opentoplevel_know_of` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_opentoplevel_know_of')).toBe(
+ '00b',
+ );
+ });
+
+ it('should encode `child_toplevel_visible` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_toplevel_visible')).toBe('01a');
+ });
+
+ it('should encode `child_toplevel_know_of` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_toplevel_know_of')).toBe('00a');
+ });
+
+ it('should encode `child_opentoplevel_join_thread` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_opentoplevel_join_thread')).toBe(
+ '0ab',
+ );
+ });
+
+ it('should encode `child_visible` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_visible')).toBe('018');
+ });
+
+ it('should encode `child_know_of` successfully', () => {
+ expect(rolePermissionToBitmaskHex('child_know_of')).toBe('008');
+ });
+});

File Metadata

Mime Type
text/plain
Expires
Wed, Jan 14, 12:37 PM (5 h, 54 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
5932057
Default Alt Text
D9662.1768394241.diff (3 KB)

Event Timeline