[improve][cpp-client] Add basic authentication

[nodece]

Signed-off-by: Zixuan Liu [email protected]

Motivation

The basic authentication is missed in cpp-client.

Modifications

• Added the basic authentication implement
• Added the basic authentication test

Documentation

• doc-required
  Add authentication code snippet of cpp-client to the Basic Authentication page.

• doc-complete - [improve][doc] Add more configuration methods for basic authentication #16941

[nodece]

/pulsarbot rerun-failure-checks

[nodece]

@BewareMyPower Thanks for your review, your request changes has been fixed.

[BewareMyPower]

Please check the failed tests introduced by this PR:

     287 ms: ./main AuthPluginBasic.testNoAuth (try #1)
     309 ms: ./main AuthPluginBasic.testNoAuthWithHttp (try #1)
     257 ms: ./main AuthPluginBasic.testNoAuthWithHttp (try #2)
     288 ms: ./main AuthPluginBasic.testNoAuth (try #2)

[BewareMyPower]

It looks like these tests should fail with ResultAuthorizationError because the standalone is configured with an anonymous role.

2022-06-29T17:48:01,551+0800 [pulsar-io-15-2] WARN  org.apache.pulsar.broker.service.ServerCnx - Role anonymous is not authorized to perform operation LOOKUP on topic persistent://private/auth/test-basic
2022-06-29T17:48:01,551+0800 [pulsar-io-15-2] WARN  org.apache.pulsar.broker.service.ServerCnx - [/127.0.0.1:63718] Proxy Client is not authorized to Get Partition Metadata with role anonymous on topic persistent://private/auth/test-basic

I'm not sure whether the anonymous role can be cancelled for a specific namespace.

[nodece]

/pulsarbot rerun-failure-checks

[BewareMyPower]

It's a new feature, we should not cherry-pick it to release branches.

[nodece]

Brokers have long supported basic authentication, but clients have not, so I think we should cherry-pick.

[BewareMyPower]

Maybe you need to open a discussion in mail list.

BTW, @merlimat what's your opinion about cherry-picking new features of C++ client into release branches?

[nodece]

@BewareMyPower I have a question to ask if the c++-client will only have one latest version, this is different from Java-Client, which comes in multiple versions.

[BewareMyPower]

if the c++-client will only have one latest version

No. The version management is the same with Java client.