app: return 500 -> 404 when error happens

middleware/onerror.js

@@ -9,6 +9,6 @@ module.exports = async (ctx, next) => {
             'Content-Type': 'text/html; charset=UTF-8',
         });
         ctx.body = `RSSHub 发生了一些意外: <pre>${err instanceof Error ? err.stack : err}</pre>`;
-        ctx.status = 500;
+        ctx.status = 404;
     }
 };

routes/pixiv/bookmarks.js

@@ -6,8 +6,7 @@ module.exports = async (ctx) => {
     const id = ctx.params.id;
 
     if (!getToken()) {
-        ctx.throw(500);
-        return;
+        throw 'pixiv not login';
     }
 
     const [bookmarksResponse, userDetailResponse] = await Promise.all([getBookmarks(id, getToken()), getUserDetail(id, getToken())]);

routes/pixiv/ranking.js

@@ -36,8 +36,7 @@ module.exports = async (ctx) => {
     const date = ctx.params.date ? new Date(ctx.params.date) : new Date();
 
     if (!getToken()) {
-        ctx.throw(500);
-        return;
+        throw 'pixiv not login';
     }
 
     const response = await getRanking(mode, ctx.params.date && date, getToken());

routes/pixiv/user.js

@@ -5,8 +5,7 @@ module.exports = async (ctx) => {
     const id = ctx.params.id;
 
     if (!getToken()) {
-        ctx.throw(500);
-        return;
+        throw 'pixiv not login';
     }
 
     const response = await getIllusts(id, getToken());