perf(backend): make some features optionable

Resolve #11064
Resolve #11065

packages/backend/src/server/api/endpoints/admin/meta.ts

@@ -262,6 +262,14 @@ export const meta = {
 				type: 'boolean',
 				optional: false, nullable: false,
 			},
+			enableServerMachineStats: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
+			enableIdenticonGeneration: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
 			policies: {
 				type: 'object',
 				optional: false, nullable: false,
@@ -364,6 +372,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				enableActiveEmailValidation: instance.enableActiveEmailValidation,
 				enableChartsForRemoteUser: instance.enableChartsForRemoteUser,
 				enableChartsForFederatedInstances: instance.enableChartsForFederatedInstances,
+				enableServerMachineStats: instance.enableServerMachineStats,
+				enableIdenticonGeneration: instance.enableIdenticonGeneration,
 				policies: { ...DEFAULT_POLICIES, ...instance.policies },
 			};
 		});

packages/backend/src/server/api/endpoints/admin/update-meta.ts

@@ -96,6 +96,8 @@ export const paramDef = {
 		enableActiveEmailValidation: { type: 'boolean' },
 		enableChartsForRemoteUser: { type: 'boolean' },
 		enableChartsForFederatedInstances: { type: 'boolean' },
+		enableServerMachineStats: { type: 'boolean' },
+		enableIdenticonGeneration: { type: 'boolean' },
 		serverRules: { type: 'array', items: { type: 'string' } },
 		preservedUsernames: { type: 'array', items: { type: 'string' } },
 	},
@@ -399,6 +401,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				set.enableChartsForFederatedInstances = ps.enableChartsForFederatedInstances;
 			}
 
+			if (ps.enableServerMachineStats !== undefined) {
+				set.enableServerMachineStats = ps.enableServerMachineStats;
+			}
+
+			if (ps.enableIdenticonGeneration !== undefined) {
+				set.enableIdenticonGeneration = ps.enableIdenticonGeneration;
+			}
+
 			if (ps.serverRules !== undefined) {
 				set.serverRules = ps.serverRules;
 			}

packages/backend/src/server/api/endpoints/server-info.ts

@@ -2,9 +2,12 @@ import * as os from 'node:os';
 import si from 'systeminformation';
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
+import { MetaService } from '@/core/MetaService.js';
 
 export const meta = {
 	requireCredential: false,
+	allowGet: true,
+	cacheSec: 60 * 1,
 
 	tags: ['meta'],
 } as const;
@@ -19,8 +22,24 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> {
 	constructor(
+		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async () => {
+			if (!(await this.metaService.fetch()).enableServerMachineStats) return {
+				machine: '?',
+				cpu: {
+					model: '?',
+					cores: 0,
+				},
+				mem: {
+					total: 0,
+				},
+				fs: {
+					total: 0,
+					used: 0,
+				},
+			};
+
 			const memStats = await si.mem();
 			const fsStats = await si.fsSize();