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https://issues.apache.org/jira/browse/KNOX-745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15433382#comment-15433382
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Vipin Rathor commented on KNOX-745:
-----------------------------------
I've been working on patch for this issue. Root cause is : knoxcli doesn't use
the ALIAS_SERVICE to translate the alias into the password. By following the
implementation of KnoxLdapContextFactory::setSystemPassword(), I was able to
work out the fix for system-user-auth-test. The user-auth-test is bit tricky.
Though the fix would be straight forward but there are multiple issues with the
existing system-user-auth-test and user-auth-test implementation. I'm seeking
suggestion on how should I go about these:
1. The system-user-auth-test doesn't make use of topology config to get the
complete shiro.ini. Instead it just creates a bare minimum shiro.ini and tries
to authenticate the system user. There is no provision to handle the system
password alias.
2. The user-auth-test uses the topology config and correct shiro.ini. The call
to KnoxLdapContextFactory::setSystemPassword() fails silently with
NullPointerException due to GatewayServer.getGatewayServices() returning null.
Later the getSubject() call fails while setting the
contextFactory.systemPassword in the configuration.
My questions are:
1. The system-user-auth-test can replicate what
KnoxLdapContextFactory::setSystemPassword() is doing by using the
CLIGatewayServices(). Would that be a right thing to do?
2. For user-auth-test, how could the GatewayServer.getGatewayServices() return
the available services if they are not initialized?
IMO both system-user-auth-test and user-auth-test should be able to translate
password alias by using KnoxLdapContextFactory::setSystemPassword() and without
having to follow any shortcut.
Opinion / suggestions?
> KnoxCLI system-user-auth-test and user-auth-test doesn't work with system
> password alias
> ----------------------------------------------------------------------------------------
>
> Key: KNOX-745
> URL: https://issues.apache.org/jira/browse/KNOX-745
> Project: Apache Knox
> Issue Type: Bug
> Components: KnoxCLI
> Affects Versions: 0.10.0
> Environment: centos6
> Reporter: Vipin Rathor
> Priority: Minor
>
> When system password alias is used instead of plain text password in Knox
> topology, the knoxcli system-user-auth-test and user-auth-test fails to
> authenticate.
> Issue can be reproduced easily by following these steps:
> Steps to reproduce:
> 1. Specify these three property in topology (say sandbox.xml)
> {code:java}
> <param>
> <name>main.ldapRealm.authorizationEnabled</name>
> <value>true</value>
> </param>
> <param>
> <name>main.ldapRealm.contextFactory.systemUsername</name>
> <value>uid=admin,ou=people,dc=hadoop,dc=apache,dc=org</value>
> </param>
> <param>
> <name>main.ldapRealm.contextFactory.systemPassword</name>
> <value>${ALIAS=ldapsystempassword}</value>
> </param>
> {code}
> 2. Save and restart the Knox gateway service
> 3. Create password alias:
> bin/knoxcli.sh create-alias ldapsystempassword --value 'admin-password'
> --cluster sandbox
> 4. Both the below command would fail:
> {code:java}
> bin/knoxcli.sh system-user-auth-test --cluster sandbox --d
> org.apache.shiro.authc.AuthenticationException: LDAP authentication failed.
> [LDAP: error code 49 - INVALID_CREDENTIALS: Bind failed: ERR_229 Cannot
> authenticate user uid=admin,ou=people,dc=hadoop,dc=apache,dc=org]
> org.apache.shiro.authc.AuthenticationException: LDAP authentication failed.
> at
> org.apache.shiro.realm.ldap.JndiLdapRealm.doGetAuthenticationInfo(JndiLdapRealm.java:300)
> at
> org.apache.hadoop.gateway.shirorealm.KnoxLdapRealm.doGetAuthenticationInfo(KnoxLdapRealm.java:193)
> at
> org.apache.shiro.realm.AuthenticatingRealm.getAuthenticationInfo(AuthenticatingRealm.java:568)
> at
> org.apache.shiro.authc.pam.ModularRealmAuthenticator.doSingleRealmAuthentication(ModularRealmAuthenticator.java:180)
> at
> org.apache.shiro.authc.pam.ModularRealmAuthenticator.doAuthenticate(ModularRealmAuthenticator.java:267)
> at
> org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:198)
> at
> org.apache.shiro.mgt.AuthenticatingSecurityManager.authenticate(AuthenticatingSecurityManager.java:106)
> at
> org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:270)
> at
> org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:256)
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand.authenticateUser(KnoxCLI.java:1069)
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand.testSysBind(KnoxCLI.java:1171)
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPSysBindCommand.execute(KnoxCLI.java:1478)
> at org.apache.hadoop.gateway.util.KnoxCLI.run(KnoxCLI.java:138)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at
> org.apache.hadoop.gateway.util.KnoxCLI.main(KnoxCLI.java:1675)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.hadoop.gateway.launcher.Invoker.invokeMainMethod(Invoker.java:70)
> at
> org.apache.hadoop.gateway.launcher.Invoker.invoke(Invoker.java:39)
> at
> org.apache.hadoop.gateway.launcher.Command.run(Command.java:101)
> at
> org.apache.hadoop.gateway.launcher.Launcher.run(Launcher.java:69)
> at
> org.apache.hadoop.gateway.launcher.Launcher.main(Launcher.java:46)
> Caused by: javax.naming.AuthenticationException: [LDAP: error code 49 -
> INVALID_CREDENTIALS: Bind failed: ERR_229 Cannot authenticate user
> uid=admin,ou=people,dc=hadoop,dc=apache,dc=org]
> at com.sun.jndi.ldap.LdapCtx.mapErrorCode(LdapCtx.java:3088)
> at
> com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:3034)
> at
> com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2836)
> at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2750)
> at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:317)
> at
> com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193)
> at
> com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:211)
> at
> com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154)
> at
> com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84)
> at
> javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
> at
> javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
> at javax.naming.InitialContext.init(InitialContext.java:242)
> at
> javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:153)
> at
> org.apache.shiro.realm.ldap.JndiLdapContextFactory.createLdapContext(JndiLdapContextFactory.java:508)
> at
> org.apache.shiro.realm.ldap.JndiLdapContextFactory.getLdapContext(JndiLdapContextFactory.java:495)
> at
> org.apache.shiro.realm.ldap.JndiLdapRealm.queryForAuthenticationInfo(JndiLdapRealm.java:375)
> at
> org.apache.shiro.realm.ldap.JndiLdapRealm.doGetAuthenticationInfo(JndiLdapRealm.java:295)
> ... 23 more
> Unable to successfully bind to LDAP server with topology credentials. Are
> your parameters correct?
> {code}
> user-auth-test:
> {code:java}
> bin/knoxcli.sh user-auth-test --cluster sandbox --u guest --p guest-password
> --d --g
> org.apache.shiro.config.ConfigurationException: Unable to set property
> 'contextFactory.systemPassword' with value [S{ALIAS=ldapsystempassword}] on
> object of type org.apache.hadoop.gateway.shirorealm.KnoxLdapRealm. If
> 'S{ALIAS=ldapsystempassword}' is a reference to another (previously defined)
> object, prefix it with '$' to indicate that the referenced object should be
> used as the actual value. For example, $S{ALIAS=ldapsystempassword}
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand$BadSubjectException:
> Subject could not be created with Shiro Config at sections=main,urls
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand$BadSubjectException:
> Subject could not be created with Shiro Config at sections=main,urls
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand.getSubject(KnoxCLI.java:1242)
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand.authenticateUser(KnoxCLI.java:1067)
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPCommand.authenticateUser(KnoxCLI.java:1104)
> at
> org.apache.hadoop.gateway.util.KnoxCLI$LDAPAuthCommand.execute(KnoxCLI.java:1400)
> at org.apache.hadoop.gateway.util.KnoxCLI.run(KnoxCLI.java:138)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at
> org.apache.hadoop.gateway.util.KnoxCLI.main(KnoxCLI.java:1675)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.hadoop.gateway.launcher.Invoker.invokeMainMethod(Invoker.java:70)
> at
> org.apache.hadoop.gateway.launcher.Invoker.invoke(Invoker.java:39)
> at
> org.apache.hadoop.gateway.launcher.Command.run(Command.java:101)
> at
> org.apache.hadoop.gateway.launcher.Launcher.run(Launcher.java:69)
> at
> org.apache.hadoop.gateway.launcher.Launcher.main(Launcher.java:46)
> ERR: Unable to authenticate user: guest
> {code}
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