[FR]: Problem with synchronizing unread mesages on Reedah

[cocowash]

#### Brief description of the issue.
Rss Guard syncs already read messages but can't reach to unread messages.

#### How to reproduce the bug?

1. add a Google Reader API account (Reedah) and select download all messages. Have 400 or more feeds on the account. Set only download newest X messages per feed on 50.

#### What was the expected result?
The Program syncs fully with Reedah in seconds.

#### What actually happened?
It took me 2 days to have an unread message

#### Other information

• OS: win 10
• RSS Guard version: 3.9.0

I contacted Reedah support and they kindly wrote me back:

I took a quick look at what RSS Guard is doing and made these observations.

1. Fetching data is a bit slow compared to our web interface. We can
   probably improve this some on our end.

2. RSS Guard is logging in and getting a security "token" for every feed
   it checks. With Reedah this is unnecessary and may add around 4 seconds
   per feed. It is valid and will work, just slower.

Our servers are running below capacity at the moment (like 10% utilized)
so there is not an issue with things being overloaded.

Obviously the first time RSS Guard (or any other software) syncs will be
the slowest because it is loading X days worth of articles.

We are happy to work on making things faster for RSS Guard users in the
future. But for immediate actions, most things are outside your
control. The best advice I can give you right now is (a) confirm whether
sync works for you at all or is it just slow - you are welcome to create
a temporary account in Reedah with fewer feeds to test it; (b) try to
mark all articles as read in the web browser before sync; (c) limit RSS
Guard to the most recent X articles for the first sync, e.g. X=25; and
(d) be patient - simply the token requesting for 400 feeds could take
400x4 = 1600 seconds so I would not be surprised if a complete sync is 1
hr+ at the moment.

According to the Google Reader API (which Reedah copies), the
ClientLogin token expires after two weeks. What RSS Guard should be
doing is logging in when the app starts and getting the token, then
storing it and re-using the same token for each request until it expires
(or at least for a few hours).

Instead it appears to login and get a token before every request (e.g.
sync of each individual feed). This creates a new "session" for the
user in Reedah. So instead of having a few (1-2) sessions per user, we
quickly end up with 1,000 per user.

It is not a particularly big problem for us, but the unnecessary steps
do slow things down for the user.

[martinrotter]

Wow, this seems like some major clusterfuck from my side. Will investigate.

[martinrotter]

5a7c06b

OK, I fixed a couple of Reedah-related bugs. Will continue fixing the rest of it tomorrow.

[martinrotter]

@cocowash OK, I fixed the part with repeated unnecessary obtaining of token which is now obtained correctly only once.

Updates should be now much much much faster, please check with latest development build, please.

https://github.com/martinrotter/rssguard/releases/tag/devbuild

[martinrotter]

I tested with devbuild, added 100 feeds and initial sync of messages took 25 seconds with 70 messages per feed and 1 minute with all messages per feed.

[cocowash]

With the newest Development build all syncs a lot faster. Nonetheless, for me now its evident that none of the YouTube feeds are working. (no read or unread messages) [As an example this is the regular structure I use for YouTube feeds on Reedah https://www.youtube.com/feeds/videos.xml?channel_id=UCJHA_jMfCvEnv-3kRjTCQXw] any of the YouTube feed is visible in Reedah but empty on RSS Guard. Could you make a test with a YouTube feed in your account pls?

Edit: Also I found certain feeds that remain empty (no read or unread messages) during these tests on RSS Guard. All have in common that download a xml file if they are pasted on a browser. These are some examples of this issue:
http://redderol.blogspot.com/feeds/posts/default?alt=rss
https://rssbox.herokuapp.com/mixcloud/podcastpueblafm/Puebla%20FM%20%7C%20105.9
https://easygerman.squarespace.com/podcast/episodes?format=rss
https://www.thinklikeagamedesigner.com/podcast?format=rss
http://jugandoconlosabuelos.blogspot.com/feeds/posts/default?alt=rss
http://vetustosdelrol.blogspot.com/feeds/posts/default?alt=rss

[martinrotter]

Thank you, I will test them. :)

[martinrotter]

Fixed with fd7e43a.

The error was that "id" of the feed was not properly encoded in request URL so the query failed for all feed "id"s which contained "?". Should now work.