update

packages/backend/src/server/api/EndpointsModule.ts

@@ -390,6 +390,7 @@ import { GetterService } from './GetterService.js';
 import { ApiLoggerService } from './ApiLoggerService.js';
 import * as ep___admin_accounts_present_points from './endpoints/admin/accounts/present-points.js';
 import type { Provider } from '@nestjs/common';
+import * as ep___emoji_speedtest from './endpoints/admin/emoji/speedtest.js';
 const $admin_meta: Provider = { provide: 'ep:admin/meta', useClass: ep___admin_meta.default };
 const $admin_abuseUserReports: Provider = { provide: 'ep:admin/abuse-user-reports', useClass: ep___admin_abuseUserReports.default };
 const $admin_accounts_create: Provider = { provide: 'ep:admin/accounts/create', useClass: ep___admin_accounts_create.default };
@@ -411,6 +412,7 @@ const $admin_avatarDecorations_update: Provider = { provide: 'ep:admin/avatar-de
 const $admin_deleteAllFilesOfAUser: Provider = { provide: 'ep:admin/delete-all-files-of-a-user', useClass: ep___admin_deleteAllFilesOfAUser.default };
 const $admin_unsetUserAvatar: Provider = { provide: 'ep:admin/unset-user-avatar', useClass: ep___admin_unsetUserAvatar.default };
 const $admin_unsetUserBanner: Provider = { provide: 'ep:admin/unset-user-banner', useClass: ep___admin_unsetUserBanner.default };
+const $emoji_speedtest: Provider = { provide: 'ep:emoji/speedtest', useClass: ep___emoji_speedtest.default };
 const $admin_drive_cleanRemoteFiles: Provider = { provide: 'ep:admin/drive/clean-remote-files', useClass: ep___admin_drive_cleanRemoteFiles.default };
 const $admin_drive_cleanup: Provider = { provide: 'ep:admin/drive/cleanup', useClass: ep___admin_drive_cleanup.default };
 const $admin_drive_files: Provider = { provide: 'ep:admin/drive/files', useClass: ep___admin_drive_files.default };
@@ -799,6 +801,7 @@ const $reversi_verify: Provider = { provide: 'ep:reversi/verify', useClass: ep__
 		$admin_avatarDecorations_update,
 		$admin_deleteAllFilesOfAUser,
 		$admin_unsetUserAvatar,
+		$emoji_speedtest,
 		$admin_unsetUserBanner,
 		$admin_drive_cleanRemoteFiles,
 		$admin_drive_cleanup,
@@ -1183,6 +1186,7 @@ const $reversi_verify: Provider = { provide: 'ep:reversi/verify', useClass: ep__
 		$admin_deleteAllFilesOfAUser,
 		$admin_unsetUserAvatar,
 		$admin_unsetUserBanner,
+		$emoji_speedtest,
 		$admin_drive_cleanRemoteFiles,
 		$admin_drive_cleanup,
 		$admin_drive_files,

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

@@ -50,6 +50,7 @@ import * as ep___admin_emoji_setCategoryBulk from './endpoints/admin/emoji/set-c
 import * as ep___admin_emoji_setLicenseBulk from './endpoints/admin/emoji/set-license-bulk.js';
 import * as ep___admin_emoji_update from './endpoints/admin/emoji/update.js';
 import * as ep___admin_emoji_updateRequest from './endpoints/admin/emoji/update-request.js';
+import * as ep___emoji_speedtest from './endpoints/admin/emoji/speedtest.js';
 import * as ep___admin_federation_deleteAllFiles from './endpoints/admin/federation/delete-all-files.js';
 import * as ep___admin_federation_refreshRemoteInstanceMetadata from './endpoints/admin/federation/refresh-remote-instance-metadata.js';
 import * as ep___admin_federation_removeAllFollowing from './endpoints/admin/federation/remove-all-following.js';
@@ -432,6 +433,7 @@ const eps = [
 	['admin/emoji/set-license-bulk', ep___admin_emoji_setLicenseBulk],
 	['admin/emoji/update', ep___admin_emoji_update],
 	['admin/emoji/update-request', ep___admin_emoji_updateRequest],
+	['emoji/speedtest', ep___emoji_speedtest],
 	['admin/federation/delete-all-files', ep___admin_federation_deleteAllFiles],
 	['admin/federation/refresh-remote-instance-metadata', ep___admin_federation_refreshRemoteInstanceMetadata],
 	['admin/federation/remove-all-following', ep___admin_federation_removeAllFollowing],

packages/backend/src/server/api/endpoints/admin/emoji/speedtest.ts

@@ -0,0 +1,78 @@
+import { Injectable } from '@nestjs/common';
+import sharp from 'sharp';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { CustomEmojiService } from '@/core/CustomEmojiService.js';
+
+export const meta = {
+	tags: ['admin'],
+	requireCredential: true,
+	requireRolePolicy: 'canManageCustomEmojis',
+	kind: 'write:admin:emoji',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		url: {
+			type: 'string',
+		},
+	},
+	required: ['url'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> {
+	constructor(
+		private customEmojiService: CustomEmojiService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const response = await fetch(ps.url, {
+				'headers': {
+					'accept': 'image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8',
+					'cache-control': 'no-cache',
+					'pragma': 'no-cache',
+					'priority': 'u=1, i',
+				},
+				'method': 'GET',
+			});
+
+			if (!response.ok) {
+				throw new Error(`Failed to fetch image: ${response.status} ${response.statusText}`);
+			}
+			const buffer = await response.arrayBuffer();
+			const metadata = await sharp(buffer).metadata();
+
+			if (!metadata.pages) {
+				throw new Error('Invalid image format or no animation frames found.');
+			}
+
+			const frameRate = metadata.delay && metadata.delay.length > 0
+				? 1000 / metadata.delay[0]
+				: 30; // Fallback to 30 FPS if no delay information is present
+
+			const colorsPerFrame: number[] = [];
+			for (let i = 0; i < metadata.pages; i++) {
+				const { data, info } = await sharp(buffer, { page: i }).raw().toBuffer({ resolveWithObject: true });
+				const uniqueColors = new Set<string>();
+				for (let y = 0; y < info.height; y++) {
+					for (let x = 0; x < info.width; x++) {
+						const offset = (y * info.width + x) * info.channels;
+						const color = `${data[offset]}-${data[offset + 1]}-${data[offset + 2]}`;
+						uniqueColors.add(color);
+					}
+				}
+				colorsPerFrame.push(uniqueColors.size);
+			}
+
+			const colorChanges = colorsPerFrame.map((colorCount, index, arr) => {
+				if (index === 0) return 0;
+				return Math.abs(colorCount - arr[index - 1]);
+			});
+
+			const averageColorChangePerSecond = colorChanges.reduce((sum, change) => sum + change, 0) / colorsPerFrame.length;
+			 console.log('Average color change per second:', 10 < averageColorChangePerSecond);
+			return Boolean(10 < averageColorChangePerSecond);
+			// You can store or use this information as needed
+		});
+	}
+}