From b75184ec8e3436200bacdcd832e3324702553d20 Mon Sep 17 00:00:00 2001
From: syuilo <Syuilotan@yahoo.co.jp>
Date: Sun, 18 Sep 2022 03:27:08 +0900
Subject: なんかもうめっちゃ変えた
MIME-Version: 1.0
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---
 packages/backend/src/server/api/endpoint-base.ts | 62 ++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 packages/backend/src/server/api/endpoint-base.ts

(limited to 'packages/backend/src/server/api/endpoint-base.ts')

diff --git a/packages/backend/src/server/api/endpoint-base.ts b/packages/backend/src/server/api/endpoint-base.ts
new file mode 100644
index 0000000000..0a7f9b3008
--- /dev/null
+++ b/packages/backend/src/server/api/endpoint-base.ts
@@ -0,0 +1,62 @@
+import * as fs from 'node:fs';
+import Ajv from 'ajv';
+import type { Schema, SchemaType } from '@/misc/schema.js';
+import type { CacheableLocalUser } from '@/models/entities/User.js';
+import type { AccessToken } from '@/models/entities/AccessToken.js';
+import { ApiError } from './error.js';
+import type { IEndpointMeta } from './endpoints.js';
+
+const ajv = new Ajv({
+	useDefaults: true,
+});
+
+ajv.addFormat('misskey:id', /^[a-zA-Z0-9]+$/);
+
+export type Response = Record<string, any> | void;
+
+// TODO: paramsの型をT['params']のスキーマ定義から推論する
+type executor<T extends IEndpointMeta, Ps extends Schema> =
+	(params: SchemaType<Ps>, user: T['requireCredential'] extends true ? CacheableLocalUser : CacheableLocalUser | null, token: AccessToken | null, file?: any, cleanup?: () => any, ip?: string | null, headers?: Record<string, string> | null) =>
+		Promise<T['res'] extends undefined ? Response : SchemaType<NonNullable<T['res']>>>;
+
+export abstract class Endpoint<T extends IEndpointMeta, Ps extends Schema> {
+	public exec: (params: any, user: T['requireCredential'] extends true ? CacheableLocalUser : CacheableLocalUser | null, token: AccessToken | null, file?: any, ip?: string | null, headers?: Record<string, string> | null) => Promise<any>;
+
+	constructor(meta: T, paramDef: Ps, cb: executor<T, Ps>) {
+		const validate = ajv.compile(paramDef);
+
+		this.exec = (params: any, user: T['requireCredential'] extends true ? CacheableLocalUser : CacheableLocalUser | null, token: AccessToken | null, file?: any, ip?: string | null, headers?: Record<string, string> | null) => {
+			let cleanup: undefined | (() => void) = undefined;
+	
+			if (meta.requireFile) {
+				cleanup = () => {
+					fs.unlink(file.path, () => {});
+				};
+	
+				if (file == null) return Promise.reject(new ApiError({
+					message: 'File required.',
+					code: 'FILE_REQUIRED',
+					id: '4267801e-70d1-416a-b011-4ee502885d8b',
+				}));
+			}
+	
+			const valid = validate(params);
+			if (!valid) {
+				if (file) cleanup!();
+	
+				const errors = validate.errors!;
+				const err = new ApiError({
+					message: 'Invalid param.',
+					code: 'INVALID_PARAM',
+					id: '3d81ceae-475f-4600-b2a8-2bc116157532',
+				}, {
+					param: errors[0].schemaPath,
+					reason: errors[0].message,
+				});
+				return Promise.reject(err);
+			}
+	
+			return cb(params as SchemaType<Ps>, user, token, file, cleanup, ip, headers);
+		};
+	}
+}
-- 
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