Add canCreateChannel role policy to control channel creation

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/backend/src/core/RoleService.ts

@@ -47,6 +47,7 @@ export type RolePolicies = {
 	canSearchUsers: boolean;
 	canUseTranslator: boolean;
 	canHideAds: boolean;
+	canCreateChannel: boolean;
 	driveCapacityMb: number;
 	maxFileSizeMb: number;
 	alwaysMarkNsfw: boolean;
@@ -88,6 +89,7 @@ export const DEFAULT_POLICIES: RolePolicies = {
 	canSearchUsers: true,
 	canUseTranslator: true,
 	canHideAds: false,
+	canCreateChannel: true,
 	driveCapacityMb: 100,
 	maxFileSizeMb: 30,
 	alwaysMarkNsfw: false,

packages/backend/src/models/json-schema/role.ts

@@ -224,6 +224,10 @@ export const packedRolePoliciesSchema = {
 			type: 'boolean',
 			optional: false, nullable: false,
 		},
+		canCreateChannel: {
+			type: 'boolean',
+			optional: false, nullable: false,
+		},
 		driveCapacityMb: {
 			type: 'integer',
 			optional: false, nullable: false,

packages/backend/src/server/api/endpoints/channels/create.ts

@@ -22,6 +22,8 @@ export const meta = {
 
 	kind: 'write:channels',
 
+	requiredRolePolicy: 'canCreateChannel',
+
 	limit: {
 		duration: ms('1hour'),
 		max: 10,