[iOS] WebDav timeouts

rbpasker

It seems that the WebDav authentication in Zotero ios/ipados times out after a certain interval, and then sync fails.

have to do a 'verify server' before it starts working again

you can see the GET fails twice at 09:43:13 and :14 with 401 Unauthorized

then i do a verify server @09:43:29, and a successful GET at 09:43:45

Consider:
if Zotero gets a 401, it should re-authenticate.
a 403 Forbidden means the credentials are invalid

https://s3.amazonaws.com/zotero.org/images/forums/u14209636/4argtukeu0bi8th6799y.png

dstillman

But that's not a successful GET at 09:43:45 — that's a GET without credentials resulting in a 401, despite the successful Verify Server requests 16 seconds earlier. That certainly doesn't seem right.

What happened after that?

rbpasker

sorry, i cut off a line.

as you can see the first 3 lines in the original post don't have 'rbp' as the username, so they are unauthorized, but the 'verify server' uses auth (09:43:29). then there's another unauthorized (09:43:45) and one that works (also 09:43:45)


https://s3.amazonaws.com/zotero.org/images/forums/u14209636/2btpoewg8ckn31jyaj0g.png

rbpasker

the question is, if there's a WebDAV server configured with a un/pw, why did the ios client attempt to GET a file without authentication (@09:43:13 and :14) ?

mvasilak

Hey @rbpasker, we found an issue affecting WebDAV connections using digest authentication. Is this relevant to your case? If so, we'll have a fix in an upcoming beta/release.

rbpasker

@mvasilak if you send me a link to the PR or commit, i will review & let you know

dstillman

Beta is here:

https://www.zotero.org/support/beta_builds#zotero_for_ios_beta

But the first question is just whether you're using Digest authentication.