Translate youtube channel and user URL into their feed (#612)

Youtube rss system is hiden inside their api to encourage account creation.

I have added a step to transform automaticaly a user or a channel url like `https://www.youtube.com/user/scilabus` into its feed url: `https://www.youtube.com/feeds/videos.xml?user=scilabus`

Signed-off-by: s18alg <s18alg@protonmail.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/js/controller/NavigationController.js b/js/controller/NavigationController.js
index e4306c9a8..1c66422d2 100644
--- a/js/controller/NavigationController.js
+++ b/js/controller/NavigationController.js
@@ -19,6 +19,7 @@ app.controller('NavigationController', function ($route, FEED_TYPE, FeedResource
     this.folderError = '';
     this.renameError = '';
     this.feed = {};
+    this.youtubeDetectorRegex = new RegExp(/youtube\.[a-z\.]{2,}\/(user|channel)\/(.*?)(\/|\?|$)/);
 
     var getRouteId = function () {
         return parseInt($route.current.params.id, 10);
@@ -187,6 +188,23 @@ app.controller('NavigationController', function ($route, FEED_TYPE, FeedResource
             // is closed or has no unread articles
             existingFolder.getsFeed = true;
 
+            /**
+             * Transform youtube channel and user URL into their RSS feed
+             * (09/01/2020): Youtube feed url work as `https://www.youtube.com/feeds/videos.xml?user=<username>`
+             */
+            var regResult = this.youtubeDetectorRegex.exec(feed.url);
+            /**
+             * At this point:
+             * regResult[0] contain the match
+             * regResult[1] contain the type of youtube entity (channel or user)
+             * regResult[2] contain either the username or the channel id
+             */
+            if (regResult && regResult[0] && regResult[1] && regResult[2]) {
+                feed.url = 'https://www.youtube.com/feeds/videos.xml?';
+                feed.url += (regResult[1] === 'user') ? 'user=' : 'channel_id=';
+                feed.url += regResult[2];
+            }
+
             FeedResource.create(feed.url, existingFolder.id, undefined, feed.user, feed.password).then(function (data) {
                 Publisher.publishAll(data);