swagger-cli validateがvalidとなるapi.jsonを作れるようにする

CHANGELOG.md

@@ -25,6 +25,7 @@
 ### Server
 - Fix: 時間経過により無効化されたアンテナを再有効化したとき、サーバ再起動までその状況が反映されないのを修正 #12303
 - Fix: ロールタイムラインが保存されない問題を修正
+- Fix: api.jsonの生成ロジックを改善 #12402
 
 ## 2023.11.1
 

packages/backend/generate_api_json.js

@@ -0,0 +1,8 @@
+import { loadConfig } from './built/config.js'
+import { genOpenapiSpec } from './built/server/api/openapi/gen-spec.js'
+import { writeFileSync } from "node:fs";
+
+const config = loadConfig();
+const spec = genOpenapiSpec(config);
+
+writeFileSync('./built/api.json', JSON.stringify(spec), 'utf-8');

packages/backend/package.json

@@ -23,7 +23,8 @@
 		"jest-and-coverage": "cross-env NODE_ENV=test node --experimental-vm-modules --experimental-import-meta-resolve node_modules/jest/bin/jest.js --coverage --forceExit",
 		"jest-clear": "cross-env NODE_ENV=test node --experimental-vm-modules --experimental-import-meta-resolve node_modules/jest/bin/jest.js --clearCache",
 		"test": "pnpm jest",
-		"test-and-coverage": "pnpm jest-and-coverage"
+		"test-and-coverage": "pnpm jest-and-coverage",
+		"generate-api-json": "node ./generate_api_json.js"
 	},
 	"optionalDependencies": {
 		"@swc/core-android-arm64": "1.3.11",

packages/backend/src/server/api/endpoints/federation/show-instance.ts

@@ -16,12 +16,9 @@ export const meta = {
 	requireCredential: false,
 
 	res: {
-		oneOf: [{
-			type: 'object',
-			ref: 'FederationInstance',
-		}, {
-			type: 'null',
-		}],
+		type: 'object',
+		optional: false, nullable: true,
+		ref: 'FederationInstance',
 	},
 } as const;
 

packages/backend/src/server/api/openapi/gen-spec.ts

@@ -4,7 +4,7 @@
  */
 
 import type { Config } from '@/config.js';
-import endpoints from '../endpoints.js';
+import endpoints, { IEndpoint } from '../endpoints.js';
 import { errors as basicErrors } from './errors.js';
 import { schemas, convertSchemaToOpenApiSchema } from './schemas.js';
 
@@ -33,16 +33,17 @@ export function genOpenapiSpec(config: Config) {
 			schemas: schemas,
 
 			securitySchemes: {
-				ApiKeyAuth: {
-					type: 'apiKey',
-					in: 'body',
-					name: 'i',
+				bearerAuth: {
+					type: 'http',
+					scheme: 'bearer',
 				},
 			},
 		},
 	};
 
-	for (const endpoint of endpoints.filter(ep => !ep.meta.secure)) {
+	// 書き換えたりするのでディープコピーしておく。そのまま編集するとメモリ上の値が汚れて次回以降の出力に影響する
+	const copiedEndpoints = JSON.parse(JSON.stringify(endpoints)) as IEndpoint[];
+	for (const endpoint of copiedEndpoints.filter(ep => !ep.meta.secure)) {
 		const errors = {} as any;
 
 		if (endpoint.meta.errors) {
@@ -79,6 +80,13 @@ export function genOpenapiSpec(config: Config) {
 			schema.required = [...schema.required ?? [], 'file'];
 		}
 
+		if (schema.required && schema.required.length <= 0) {
+			// 空配列は許可されない
+			schema.required = undefined;
+		}
+
+		const hasBody = (schema.type === 'object' && schema.properties && Object.keys(schema.properties).length >= 1);
+
 		const info = {
 			operationId: endpoint.name,
 			summary: endpoint.name,
@@ -92,17 +100,19 @@ export function genOpenapiSpec(config: Config) {
 			} : {}),
 			...(endpoint.meta.requireCredential ? {
 				security: [{
-					ApiKeyAuth: [],
+					bearerAuth: [],
 				}],
 			} : {}),
-			requestBody: {
-				required: true,
-				content: {
-					[requestType]: {
-						schema,
+			...(hasBody ? {
+				requestBody: {
+					required: true,
+					content: {
+						[requestType]: {
+							schema,
+						},
 					},
 				},
-			},
+			} : {}),
 			responses: {
 				...(endpoint.meta.res ? {
 					'200': {
@@ -118,6 +128,11 @@ export function genOpenapiSpec(config: Config) {
 						description: 'OK (without any results)',
 					},
 				}),
+				...(endpoint.meta.res?.optional === true || endpoint.meta.res?.nullable === true ? {
+					'204': {
+						description: 'OK (without any results)',
+					},
+				} : {}),
 				'400': {
 					description: 'Client error',
 					content: {
@@ -190,6 +205,7 @@ export function genOpenapiSpec(config: Config) {
 		};
 
 		spec.paths['/' + endpoint.name] = {
+			...(endpoint.meta.allowGet ? { get: info } : {}),
 			post: info,
 		};
 	}

packages/backend/src/server/api/openapi/schemas.ts

@@ -7,10 +7,16 @@ import type { Schema } from '@/misc/json-schema.js';
 import { refs } from '@/misc/json-schema.js';
 
 export function convertSchemaToOpenApiSchema(schema: Schema) {
-	const res: any = schema;
+	// optional, refはスキーマ定義に含まれないので分離しておく
+	// eslint-disable-next-line @typescript-eslint/no-unused-vars
+	const { optional, ref, ...res }: any = schema;
 
 	if (schema.type === 'object' && schema.properties) {
-		res.required = Object.entries(schema.properties).filter(([k, v]) => !v.optional).map(([k]) => k);
+		const required = Object.entries(schema.properties).filter(([k, v]) => !v.optional).map(([k]) => k);
+		if (required.length > 0) {
+			// 空配列は許可されない
+			res.required = required;
+		}
 
 		for (const k of Object.keys(schema.properties)) {
 			res.properties[k] = convertSchemaToOpenApiSchema(schema.properties[k]);