feat: URLプレビューのリダイレクトを受け入れるかどうかを設定できるようにする (#16112)

* feat: URLプレビューのリダイレクトを受け入れるかどうかを設定できるようにする

* fix CHANGELOG.md

* fix lang

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

@@ -495,6 +495,10 @@ export const meta = {
 				type: 'boolean',
 				optional: false, nullable: false,
 			},
+			urlPreviewAllowRedirect: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
 			urlPreviewTimeout: {
 				type: 'number',
 				optional: false, nullable: false,
@@ -704,6 +708,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				notesPerOneAd: instance.notesPerOneAd,
 				summalyProxy: instance.urlPreviewSummaryProxyUrl,
 				urlPreviewEnabled: instance.urlPreviewEnabled,
+				urlPreviewAllowRedirect: instance.urlPreviewAllowRedirect,
 				urlPreviewTimeout: instance.urlPreviewTimeout,
 				urlPreviewMaximumContentLength: instance.urlPreviewMaximumContentLength,
 				urlPreviewRequireContentLength: instance.urlPreviewRequireContentLength,

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

@@ -170,6 +170,7 @@ export const paramDef = {
 			description: '[Deprecated] Use "urlPreviewSummaryProxyUrl" instead.',
 		},
 		urlPreviewEnabled: { type: 'boolean' },
+		urlPreviewAllowRedirect: { type: 'boolean' },
 		urlPreviewTimeout: { type: 'integer' },
 		urlPreviewMaximumContentLength: { type: 'integer' },
 		urlPreviewRequireContentLength: { type: 'boolean' },
@@ -664,6 +665,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.urlPreviewEnabled = ps.urlPreviewEnabled;
 			}
 
+			if (ps.urlPreviewAllowRedirect !== undefined) {
+				set.urlPreviewAllowRedirect = ps.urlPreviewAllowRedirect;
+			}
+
 			if (ps.urlPreviewTimeout !== undefined) {
 				set.urlPreviewTimeout = ps.urlPreviewTimeout;
 			}

packages/backend/src/server/web/UrlPreviewService.ts

@@ -122,7 +122,7 @@ export class UrlPreviewService {
 			: undefined;
 
 		return summaly(url, {
-			followRedirects: false,
+			followRedirects: this.meta.urlPreviewAllowRedirect,
 			lang: lang ?? 'ja-JP',
 			agent: agent,
 			userAgent: meta.urlPreviewUserAgent ?? undefined,
@@ -137,6 +137,7 @@ export class UrlPreviewService {
 		const queryStr = query({
 			url: url,
 			lang: lang ?? 'ja-JP',
+			followRedirects: this.meta.urlPreviewAllowRedirect,
 			userAgent: meta.urlPreviewUserAgent ?? undefined,
 			operationTimeout: meta.urlPreviewTimeout,
 			contentLengthLimit: meta.urlPreviewMaximumContentLength,