From f2f0eda543ab54eec0f6bcdd8ccf6e382d5cafb6 Mon Sep 17 00:00:00 2001
From: Rigel Kent <sendmemail@rigelk.eu>
Date: Thu, 9 Jan 2020 16:51:51 +0100
Subject: Adapt feeds content-type to accept header

---
 server/middlewares/validators/feeds.ts | 36 ++++++++++++++++++++++++++++++----
 1 file changed, 32 insertions(+), 4 deletions(-)

(limited to 'server/middlewares/validators')

diff --git a/server/middlewares/validators/feeds.ts b/server/middlewares/validators/feeds.ts
index 1bef9891b..29f6c87be 100644
--- a/server/middlewares/validators/feeds.ts
+++ b/server/middlewares/validators/feeds.ts
@@ -12,9 +12,37 @@ import {
   doesVideoChannelNameWithHostExist
 } from '../../helpers/middlewares'
 
-const videoFeedsValidator = [
+const feedsFormatValidator = [
   param('format').optional().custom(isValidRSSFeed).withMessage('Should have a valid format (rss, atom, json)'),
-  query('format').optional().custom(isValidRSSFeed).withMessage('Should have a valid format (rss, atom, json)'),
+  query('format').optional().custom(isValidRSSFeed).withMessage('Should have a valid format (rss, atom, json)')
+]
+
+function setFeedFormatContentType (req: express.Request, res: express.Response, next: express.NextFunction) {
+  const format = req.query.format || req.params.format || 'rss'
+
+  let acceptableContentTypes: string[]
+  if (format === 'atom' || format === 'atom1') {
+    acceptableContentTypes = ['application/atom+xml', 'application/xml', 'text/xml']
+  } else if (format === 'json' || format === 'json1') {
+    acceptableContentTypes = ['application/json']
+  } else if (format === 'rss' || format === 'rss2') {
+    acceptableContentTypes = ['application/rss+xml', 'application/xml', 'text/xml']
+  } else {
+    acceptableContentTypes = ['application/xml', 'text/xml']
+  }
+
+  if (req.accepts(acceptableContentTypes)) {
+    res.set('Content-Type', req.accepts(acceptableContentTypes) as string)
+  } else {
+    return res.status(406).send({
+      message: `You should accept at least one of the following content-types: ${acceptableContentTypes.join(', ')}`
+    }).end()
+  }
+
+  return next()
+}
+
+const videoFeedsValidator = [
   query('accountId').optional().custom(isIdValid),
   query('accountName').optional(),
   query('videoChannelId').optional().custom(isIdValid),
@@ -35,8 +63,6 @@ const videoFeedsValidator = [
 ]
 
 const videoCommentsFeedsValidator = [
-  param('format').optional().custom(isValidRSSFeed).withMessage('Should have a valid format (rss, atom, json)'),
-  query('format').optional().custom(isValidRSSFeed).withMessage('Should have a valid format (rss, atom, json)'),
   query('videoId').optional().custom(isIdOrUUIDValid),
 
   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
@@ -53,6 +79,8 @@ const videoCommentsFeedsValidator = [
 // ---------------------------------------------------------------------------
 
 export {
+  feedsFormatValidator,
+  setFeedFormatContentType,
   videoFeedsValidator,
   videoCommentsFeedsValidator
 }
-- 
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