http proxy fail to work

[khtkiprw]

Description

With http proxies, authentication is always required

Is this header correct?

Example/How to Reproduce

cpr::Session session;
session.SetProxies({ {"http","http://44.199.26.89:31112"},{"https","http://44.199.26.89:31112"} });
session.SetProxyAuth(cpr::ProxyAuthentication({{"http",cpr::EncodedAuthentication("khXXX","PtsIjHXXX")},{"https",cpr::EncodedAuthentication("khtXXX","PtsIjHBYXXX")}}));
session.SetUrl("https://www.taobao.com/help/getip.php");
cpr::Response resp = session.Get();
std::cout << resp.text;

Possible Fix

No response

Where did you get it from?

vcpkg

Additional Context/Your Environment

• OS:
• Version:

[COM8]

Hi @khtkiprw thanks for opening this issue!

Let me summarize your question to make sure I understand it correctly:

• You are using cpr with proxy that requires authentication.
• You are able to create a cpr session object for it.
• If you now try to connect, it fails due to an invalid authentication.
• Your question is how this can be fixed and you are unsure about if the proxy authentication generated by cpr since your sever returns authentication required.

Correct?

[khtkiprw]

proxy authentication I'm sure it's correct Since I use the Socks5 proxy, it works fine, but trying to use the http proxy results in an error, always returning 407

There is also a response header, which should be a combination of a connection proxy response header and a data request response header

[COM8]

Hmmm 407 indicates an authentication issue. We had an other report about this here with a fix for it that is going to be released in 1.11.0 since it introduces breaking changes. Any chance you can try with a current master build?

[khtkiprw]

http proxy worked from master build. Thank you very much

[COM8]

Awesome!