Authenticate Request Error For Nexus Registry

[deleomike]

Hello! Thanks for all the hard work you've put into this project, it's really cool!

Setup

• Mac
• python 3.8
• oras-py: 0.1.23

Error

So I was following the tutorial to upload a file, and I got an error when I did this with a Nexus Repository. This repository is private, btw.

import oras.client

host = "http://my-docker.my-ip.com"
client = oras.client.OrasClient(hostname=host)
client.login(username="my-username", password="my-password", hostname=host, insecure=True)
client.push(files=["requirements.txt"], target=f"{host}/artifact:v1")

My issue is I was able to login, but on the push command it would error out to the wrong host.

urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='sonatype%20nexus%20repository%20manager', port=443): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fa32854a230>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known'))

When I added some print statements to provider.py, I found that the www-authenticate header param was being set to that Sonatype realm. However in the Via field, I found my hostname.

 {
...
 'WWW-Authenticate': 'BASIC realm="Sonatype Nexus Repository Manager"',
 'Via': '1.1 my-docker.my-ip.com', 
...
}

So, it seems there's a proxy. I was going to write a workaround for my project that inherits the registry and checks for the Via, but I figured this was a fix that would be useful to the community and wanted to report it.

[vsoch]

If you'd care to open a PR I'd be happy to review it. Thank you!