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NTLM and Guest

peebles

With out-of-the-box version 2.0.0, there was an admin and a guest account, and I had to manually add users. I could however, 'invite' the guest as a consumer for a space, which would then allow "anonymous" access to the content in that space with the URI for that content, w/out a need for a login.

I've now spent two days and finally got LDAP user/group sync to work, and NTLM login authentication and CIFS (!). Seems chaining does not work with NTLM (from various posts), so my admin and guest accounts are gone. I can get back an admin capability with custom-authority-services-context.xml. I can even "see" a guest user if I <allowGuest/> in file-servers-custom.xml.

But still, any "anonymous" attempt to fetch content thru URI gets me the login screen. Why?

I would also like to create non-ldap users local to the alfresco database, so I can allow external folks access to content. I think this means "chaining". How can this be done with NTLM?

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Comments

alexander

Hi

I did managed to make chaining work for NTLM Web Client auth (but CIFS only uses NTLM) , have a look here:
http://wiki.alfresco.com/wiki/Talk:Enterprise_Security_and_Authentication_Configuration

If you like, I can send you prepared .class that is tested with 2.0

Thanks
Alexander

peebles

This solution worked great for me. With out-of-the-box NTLM, which is (apparently) needed for CIFS work work, chaining is not supported. If you cannot chain, then you loose admin, guest and the ability to have "external" users in your system that are not in AD/LDAP. If you, like me, needs this combination then Alexander's NTLMAuthenticationFilter.class is just the ticket. Get his NTLMAuthenticationFilter.class from his post, and then here are the installation instructions:

1) Stop Alfresco and go to /afresco/tomcat/webapps
2) Delete .war file (it is already deployed)
3) go to alfresco/WEB_INF/lib
4) rename web-client.jar to .zip
5) right-click and select "Explore"
6) inside zip find org/alfresco/web/app/servlet/NTLMAuthenticationFilter.class and replace it
7) rename jar back
😎 start alfresco

You will also need a tomcat/shared/classes/alfresco/extension/chaining-authentication-context.xml file that looks something like:

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 'http://www.springframework.org/dtd/spring-beans.dtd'>

<beans>
    
   
    
    <!– Chaining –>
    
    <bean id="authenticationService" class="org.alfresco.repo.security.authentication.ChainingAuthenticationServiceImpl">
        <property name="authenticationServices">
            <list>
                <ref bean="authenticationServiceImplNTLM"/>
            </list>
        </property>
        <property name="mutableAuthenticationService">
            <ref bean="authenticationServiceImplAlfresco"/>
        </property>
    </bean>
    
    <!– Alfresco Auth –>
    
    <bean id="authenticationServiceImplAlfresco" class="org.alfresco.repo.security.authentication.AuthenticationServiceImpl">
        <property name="authenticationDao">
            <ref bean="authenticationDaoAlfresco"/>
        </property>
        <property name="ticketComponent">
            <ref bean="ticketComponent"/>
        </property>
        <property name="authenticationComponent">
            <ref bean="authenticationComponentImplAlfresco"/>
        </property>
    </bean>
    
    <bean id="authenticationDaoAlfresco" class="org.alfresco.repo.security.authentication.RepositoryAuthenticationDao">
        <property name="nodeService">
            <ref bean="nodeService"/>
        </property>
        <property name="dictionaryService">
            <ref bean="dictionaryService"/>
        </property>
        <property name="namespaceService">
            <ref bean="namespaceService"/>
        </property>
        <property name="searchService">
            <ref bean="searchService"/>
        </property>
        <property name="userNamesAreCaseSensitive">
            <value>${user.name.caseSensitive}</value>
        </property>
        <property name="passwordEncoder">
            <ref bean="passwordEncoder"/>
        </property>
    </bean>
    
    <bean id="authenticationComponentImplAlfresco" class="org.alfresco.repo.security.authentication.AuthenticationComponentImpl">
        <property name="authenticationDao">
            <ref bean="authenticationDaoAlfresco"/>
        </property>
        <property name="authenticationManager">
            <ref bean="authenticationManager"/>
        </property>
        <property name="allowGuestLogin">
            <value>true</value>
        </property>
    </bean>
    
    <!– NTLM –>

    <bean id="authenticationServiceImplNTLM" class="org.alfresco.repo.security.authentication.AuthenticationServiceImpl">
        <property name="authenticationDao">
            <ref bean="authenticationDaoNTLM"/>
        </property>
        <property name="ticketComponent">
            <ref bean="ticketComponent"/>
        </property>
        <property name="authenticationComponent">
            <ref bean="authenticationComponent"/>
        </property>
</bean>


       <bean id="authenticationDaoNTLM" class="org.alfresco.repo.security.authentication.ntlm.NullMutableAuthenticationDao" />

    <!– The authentication component.                                      –>

    <!– Use the passthru authentication component to authenticate using    –>
    <!– user accounts on one or more Windows servers.                      –>
    
    <!– Properties that specify the server(s) to use for passthru          –>
    <!– authentication :-                                                  –>
    <!–   useLocalServer   use the local server for authentication         –>
    <!–   domain           use domain controllers from the specified domain–>
    <!–   servers          comma delimted list of server addresses or      –>
    <!–                    names                                           –>
       
    <bean id="authenticationComponent" class="org.alfresco.repo.security.authentication.ntlm.NTLMAuthenticationComponentImpl">
        <property name="servers">
     <value>your_server(s)_here</value>
        </property>
        <property name="useLocalServer">
            <value>false</value>
        </property>
        <property name="personService">
            <ref bean="personService" />
        </property>
        <property name="nodeService">
            <ref bean="nodeService" />
        </property>
        <property name="guestAccess">
            <value>true</value>
        </property>
</bean>

</beans>
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richard_tsai

Hi! peebles,
I followed your steps and modified server name in your chaining-authentication-context.xml. I got exception as following:
Do I miss something?

………..

Caused by: javax.faces.el.EvaluationException: Exception while invoking expressi
on #{LoginBean.login}
        at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java
:153)
        at org.apache.myfaces.application.ActionListenerImpl.processAction(Actio
nListenerImpl.java:63)
        … 23 more
Caused by: org.alfresco.error.AlfrescoRuntimeException: Not implemented
        at org.alfresco.repo.security.authentication.ntlm.NullMutableAuthenticat
ionDao.loadUserByUsername(NullMutableAuthenticationDao.java:316)
        at net.sf.acegisecurity.providers.dao.DaoAuthenticationProvider.getUserF
romBackend(DaoAuthenticationProvider.java:390)
        at net.sf.acegisecurity.providers.dao.DaoAuthenticationProvider.authenti
cate(DaoAuthenticationProvider.java:225)
        at net.sf.acegisecurity.providers.ProviderManager.doAuthentication(Provi
derManager.java:159)
        at net.sf.acegisecurity.AbstractAuthenticationManager.authenticate(Abstr
actAuthenticationManager.java:49)
        at org.alfresco.repo.security.authentication.AuthenticationComponentImpl
.authenticate(AuthenticationComponentImpl.java:74)
        at org.alfresco.repo.security.authentication.AuthenticationServiceImpl.a
uthenticate(AuthenticationServiceImpl.java:112)
        at org.alfresco.repo.security.authentication.ChainingAuthenticationServi
ceImpl.authenticate(ChainingAuthenticationServiceImpl.java:164)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.

…………….

        at $Proxy20.authenticate(Unknown Source)
        at org.alfresco.web.bean.LoginBean.login(LoginBean.java:243)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java
:129)
        … 24 more
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peebles

I am a newbee at this game. I just posted the instructions that alexander mailed me that worked. I will say that, getting all of this authentication stuff to work is very painful.

Even now, all my problems are not solved. With my current setup, the CIFS interface kinda works, except the drag-n-drop on the Details.exe or CheckInOut.exe fail. I am still trying to get that resolved.

daliakamal2005

Hi all
can u pls send the instructions to me

richard_tsai

H! Dalia,
Please see my tomcat\shared\classes\alfresco\extension\chainging-authentication-context.xml.
In my company, our users are located in different Microsoft AD domains
I configured it to authenticate two domain controllers. It solves my cross domains authentication problem partially, because it works on web client, but not CIFS.

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 'http://www.springframework.org/dtd/spring-beans.dtd'>

<beans>
 


    <!– Chaining –>

    <bean id="authenticationService" class="org.alfresco.repo.security.authentication.ChainingAuthenticationServiceImpl">
        <property name="authenticationServices">
            <list>
                <ref bean="authenticationServiceImplNTLM2"/>
                <ref bean="authenticationServiceImplNTLM"/>

            </list>
        </property>
    </bean>

    <bean id="authenticationServiceImplNTLM" class="org.alfresco.repo.security.authentication.AuthenticationServiceImpl">
        <property name="authenticationDao">
            <ref bean="authenticationDaoNTLM"/>
        </property>
        <property name="ticketComponent">
            <ref bean="ticketComponent"/>
        </property>
        <property name="authenticationComponent">
            <ref bean="authenticationComponent"/>
        </property>
    </bean>

    <bean id="authenticationDaoNTLM" class="org.alfresco.repo.security.authentication.ntlm.NullMutableAuthenticationDao" />

    <!– The authentication component.                                      –>

    <!– Use the passthru authentication component to authenticate using    –>
    <!– user accounts on one or more Windows servers.                      –>

    <!– Properties that specify the server(s) to use for passthru          –>
    <!– authentication :-                                                  –>
    <!–   useLocalServer   use the local server for authentication         –>
    <!–   domain           use domain controllers from the specified domain–>
    <!–   servers          comma delimted list of server addresses or      –>
    <!–                    names                                           –>

    <bean id="authenticationComponent" class="org.alfresco.repo.security.authentication.ntlm.NTLMAuthenticationComponentImpl">
        <property name="servers">
            <value>xxxtaodc1</value>
        </property>
        <property name="useLocalServer">
            <value>false</value>
        </property>
        <property name="personService">
            <ref bean="personService" />
        </property>
        <property name="nodeService">
            <ref bean="nodeService" />
        </property>
        <property name="guestAccess">
            <value>false</value>
        </property>
</bean>


    <bean id="authenticationServiceImplNTLM2" class="org.alfresco.repo.security.authentication.AuthenticationServiceImpl">
        <property name="authenticationDao">
            <ref bean="authenticationDaoNTLM2"/>
        </property>
        <property name="ticketComponent">
            <ref bean="ticketComponent"/>
        </property>
        <property name="authenticationComponent">
            <ref bean="authenticationComponent2"/>
        </property>
    </bean>

    <bean id="authenticationDaoNTLM2" class="org.alfresco.repo.security.authentication.ntlm.NullMutableAuthenticationDao" />

    <!– The authentication component.                                      –>

    <!– Use the passthru authentication component to authenticate using    –>
    <!– user accounts on one or more Windows servers.                      –>

    <!– Properties that specify the server(s) to use for passthru          –>
    <!– authentication :-                                                  –>
    <!–   useLocalServer   use the local server for authentication         –>
    <!–   domain           use domain controllers from the specified domain–>
    <!–   servers          comma delimted list of server addresses or      –>
    <!–                    names                                           –>

    <bean id="authenticationComponent2" class="org.alfresco.repo.security.authentication.ntlm.NTLMAuthenticationComponentImpl">
        <property name="servers">
            <value>xxxtpedc1</value>
        </property>
        <property name="useLocalServer">
            <value>false</value>
        </property>
        <property name="personService">
            <ref bean="personService" />
        </property>
        <property name="nodeService">
            <ref bean="nodeService" />
        </property>
        <property name="guestAccess">
            <value>false</value>
        </property>
</bean>


</beans>

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kimquy76

Hello, I'm a newbie on java so if someone could please help me on how to compile NTLMAuthenticationFilter.java into NTLMAuthenticationFilter.class, I appriciate it very much. I try to compile using javac but keep getting lots of compiling error about package not exist.