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### _Why are the changes needed?_
<!--
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Support both KERBEROS and PLAIN authentication at the same time.
### _How was this patch tested?_
Added UT & IT.
I make integration testing on our dev cluster with KERBEROS and CUSTOM authentication.
```
kyuubi.authentication KERBEROS,CUSTOM
kyuubi.authentication.custom.class=org.apache.kyuubi.ZeusCustom
```
For org.apache.kyuubi.ZeusCustom, it checks whether the user equals password.
```
package org.apache.kyuubi
import javax.security.sasl.AuthenticationException
import org.apache.kyuubi.service.authentication.PasswdAuthenticationProvider
class ZeusCustom
extends PasswdAuthenticationProvider with Logging {
override def authenticate(user: String, password: String): Unit = {
if (user == password) {
info(s"Success log in of user: $user")
} else {
throw new AuthenticationException("Username or password is not valid!")
}
}
}
```
1. kerberos testing with user b_zeus
2. CUTOM authentication testing with user b_zeus
Note that: they share the same backend spark engine, because they are the same user.
Closes#1266 from turboFei/multiple_auth_KYUUBI-1262.
Closes#1262
71053aef [fwang12] adress nit
850d6b5d [fwang12] fix ut
ea7db79f [fwang12] complete
11f409cb [fwang12] Update docs
b1f83e55 [fwang12] add ut
8d137db9 [fwang12] make ldap password diff with custom
d227aa74 [fwang12] fix ut
d7cfaf4c [fwang12] only the first is valid
2e2283ba [fwang12] after all
ee0e8bc0 [fwang12] make kerberoes enabled
4fc63081 [fwang12] refactor kerbereos helper
6691cc57 [fwang12] save
cd813ecf [fwang12] refactor
dd706740 [fwang12] retest
f4038e93 [fwang12] fix code style
7b590a23 [fwang12] add ut
e39e19e6 [fwang12] add it
7dc7c927 [fwang12] with password
8dadfd32 [fwang12] refactor ldap suite
8545a033 [fwang12] add ut
1aa30a5c [fwang12] refactor
8cc2ea66 [fwang12] fix ut
10f788ae [fwang12] before all
98f93640 [fwang12] revert sth
bb75f8e9 [fwang12] save
314579f1 [fwang12] update default
ac8b195f [fwang12] [KYUUBI #1262] Support multiple kinds of SASL authentication type
Authored-by: fwang12 <fwang12@ebay.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>
24cf1bd720
