From c56ff5d88db282547a304456892dcacac2b0a490 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Sun, 26 Aug 2018 01:56:21 +0900
Subject: [PATCH] Add sunnaly proxy option

---
 .config/example.yml           |  3 +++
 src/config/types.ts           |  2 ++
 src/server/web/url-preview.ts | 11 ++++++++++-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/.config/example.yml b/.config/example.yml
index 9ea048f70b..ecb1dd1934 100644
--- a/.config/example.yml
+++ b/.config/example.yml
@@ -138,3 +138,6 @@ drive:
 
 # Clustering
 # clusterLimit: 1
+
+# Summaly proxy
+# summalyProxy: "http://example.com"
diff --git a/src/config/types.ts b/src/config/types.ts
index f220e15822..a1dc9a5bd4 100644
--- a/src/config/types.ts
+++ b/src/config/types.ts
@@ -62,6 +62,8 @@ export type Source = {
 	 */
 	ghost?: string;
 
+	summalyProxy?: string;
+
 	accesslog?: string;
 	twitter?: {
 		consumer_key: string;
diff --git a/src/server/web/url-preview.ts b/src/server/web/url-preview.ts
index e96eb309fe..41ca6bad8b 100644
--- a/src/server/web/url-preview.ts
+++ b/src/server/web/url-preview.ts
@@ -1,11 +1,20 @@
 import * as Koa from 'koa';
+import * as request from 'request-promise-native';
 import summaly from 'summaly';
+import config from '../../config';
 
 module.exports = async (ctx: Koa.Context) => {
 	try {
-		const summary = await summaly(ctx.query.url, {
+		const summary = config.summalyProxy ? await request.get({
+			url: config.summalyProxy,
+			qs: {
+				url: ctx.query.url
+			},
+			json: true
+		}) : await summaly(ctx.query.url, {
 			followRedirects: false
 		});
+
 		summary.icon = wrap(summary.icon);
 		summary.thumbnail = wrap(summary.thumbnail);