Discovery server error: first path segment in URL cannot contain colon

Support
1

I set up two discovery servers to be used along with default discovery servers. I have updated discovery server addresses as: default, https://url-1:8443/v2/?id=id1, https://url-2:8443/v2/?id=id2

However on some of the machines I am getting following error, while on other machines it works fine(which was odd). Global discovery: parse default, https://url1:8443/v2/?id=id1, https://url2:8443/v2/?id=id2 : first path segment in URL cannot contain colon.

I added port along with URL because if i just give url, i believe DNS sends the request to port 443. I could see some similar errors in google on other projects in go.

Is there a solution for this without changing the listen address to port 443 and any idea why do I get parse error only sporadically?

Thanks.

2

What are your actual URLs and settings? We can’t debug this on hypotheticals.

3

Sorry about that. attached config.xml

config.xml (4.5 KB)

4

Looks to me like it ought to work. Assuming of course that you’ve hijacked the domains in question in your local resolver or such.

5

Yeah it works, in fact this problem occurs only sporadically. Will use port 443 so that colons in url can be avoided. Thanks

6

I removed the colon due to port in url (i.e. :8443 ) by using port 443.

But even after that the issue occurred. So right now it is objecting to colon present for specifying the protocol https:// in the url. But if I remove the protocol https:// from url, it gives error invalid scheme

Any suggestions/pointers to either debug/resolve this issue ?

7

Are you sure it’s not complaining about the results returned from the discovery server, or something?

8

I tried a few times and can now reproduce the issue with decent frequency. I think its not complaining about results from discovery server because when the issue occurs, i query the discovery server database and the device was not registered with it.

I tried to restart syncthing few times but that did not help. But when I try to restart syncthing by toggling “enable Local discovery”, it was able to register with the same discovery server. No other change was made except toggling “enable local discovery” . And as a user I have tried my best to ensure that there is no mistake in me configuring syncthing.

I think the issue occurs when it tries to parse the urls and therefore does not make request to discovery server. Since I can reproduce the issue, do suggest any steps I can take to debug.

Thanks

9

Well, post the URLs you get back, given they come up as invalid?

10

If you can reproduce it, post the steps to do so and I’ll check it out.

11

I think I have isolated the issue on my end. But I am traveling now, will verify and provide update here. Thanks

12

Sorry for the delay. So there was a bug in my code which would in some case, incorrectly update the discovery server from default to list of comma separated servers instead of creating a new XML-element in options tag as mentioned in the docs.

13

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