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h2. Requirements

1. OpenCms is authenticated by CAS + LDAP.

2. OpenCms is authorized by CAS + LDAP.

3. Support OpenCms OU.

4. CAS will search  LDAP for groups and roles when validating, not authenticating.

5. Validation URI can be customised, not /serviceValidate only.

6. Easy to extend the module to support CAS + DATABASE.
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h1.


h2. Environments

Tested in Fedora 10, OpenJDK 1.6.0, Tomcat 5.5.27, OpenCms7.0.5, CAS3.3.1, OpenLDAP 2.4.12.
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h2. Login Procedure

!opencms7.0.5-cas3.3.1-ldap.png!\\

h2. Module Parameters

*+ Module parameters for authentication handler:+*
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{code}
AuthenticationHandler: cn.langhua.opencms.ldap.cas.CmsCasAuthenticationHandler

AutoUserRoleName: not required. If you want the user can login OpenCms workplace by default, this parameter should be RoleWorkplaceUsers.

CasUrl: not required, default is https://localhost:8443/cas.

CasLoginUri: not required, the uri to CAS login, default is /login.

CasValidateUri: not required, the uri to CAS validate, default is /serviceValidate.

CasLenientURL: not required, if set, this url will be used to validate CAS ticket, default is null.

CasLogoutUri: not required, default is /logout.
{code}

h2.

*+ Module parameters for authorization handler:+*
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{code}
AuthenticationHandler: cn.langhua.opencms.ldap.cas.CmsCasAuthorizationHandler

GroupSearchDN: required, the group dn to resolve OpenCms OU. If not set, will use BaseDN.

RoleSearchDN: required, the role dn to resolve OpenCms role. If not set, will use BaseDN.

BaseDN: not required.

AutoUserRoleName: not required. If you want the user can login OpenCms workplace by default, this parameter should be RoleWorkplaceUsers.

CasUrl: not required, default is https://localhost:8443/cas.

CasLoginUri: not required, the uri to CAS login, default is /login.

CasValidateUri: not required, the uri to CAS validate, default is /serviceValidate.

CasLenientURL: not required, if set, this url will be used to validate CAS ticket, default is null.

CasLogoutUri: not required, default is /logout.
{code}

h2. Add a new validate servlet to CAS

Here I use /authzValidate as the new validate servlet uri for an example.

h4. 1. Add /authzValidate in $(cas_server)/WEB-INF/web.xml

{code}


cas
/authzValidate


{code}

h4. 2. Modify {Modify$(cas_server}
)/WEB-INF/cas-servlet.xml

{code}
...

 				<!--
start
service validate extensions -->
				<prop
					key="/authzValidate">
					authzValidateController
				</prop>
				<!-- end service validate
extensions
-->
...
	<!--
start
service
validate extensions -->
	<bean id="authzValidateController" class="org.jasig.cas.web.ServiceValidateController"
		p:validationSpecificationClass="org.jasig.cas.validation.Cas20WithoutProxyingValidationSpecification"
		p:centralAuthenticationService-ref="centralAuthorizationService"
		p:proxyHandler-ref="proxy20Handler"
		p:argumentExtractor-ref="casArgumentExtractor" />
	<!-- end service validate extensions -->
{code}

h4.


h4. 3. Modify
{cas_server}


h2. How to get the module and the source code

SVN:

[http://www.langhua.cn/langhua/modules/ldap/]

Username:anon

Password:anon

ViewVC:

[http://www.langhua.cn/viewvc/svn/modules/ldap/]

Shi Yusen/Beijing Langhua Ltd.

[http://langhua.org/]
[http://langhua.biz/]