Yale CAS 3.1
下載: http://www.ja-sig.org/products/cas/index.html
1. 修改authenticationViaFormAction以使用自己的Credentials
默認的org.jasig.cas.authentication.principal.UsernamePasswordCredentials只記錄用戶名和密碼，在擴展一些屬性如驗證碼時使用用自己的Credentials類替換
cas-servlet.xml:
<bean id="authenticationViaFormAction" class="org.jasig.cas.web.flow.AuthenticationViaFormAction"
p:centralAuthenticationService-ref="centralAuthenticationService"
p:warnCookieGenerator-ref="warnCookieGenerator"
p:formObjectName="credentials"
p:formObjectClass="com.nlcd.cas.authentication.principal.EcardCredentials">
<property name="validator">
<bean class="com.nlcd.cas.validation.EcardCredentialsValidator"/>
</property>
</bean>
EcardCredentialsValidator:
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
import com.nlcd.cas.authentication.principal.EcardCredentials;
public final class EcardCredentialsValidator implements Validator {
public boolean supports(final Class clazz) {
return EcardCredentials.class.isAssignableFrom(clazz);
}
public void validate(final Object o, final Errors errors) {
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "username",
"required.username", null);
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password",
"required.password", null);
}
}
EcardCredentials: (加入一個idtype屬性)
import org.jasig.cas.authentication.principal.Credentials;
public class EcardCredentials implements Credentials {
/** Unique ID for serialization. */
private static final long serialVersionUID = -7863273946921255486L;
private String idtype;
/** The username. */
private String username;
/** The password. */
private String password;
public String getIdtype() {
return idtype;
}
public void setIdtype(String idtype) {
this.idtype = idtype;
}
/**
* @return Returns the password.
*/
public final String getPassword() {
return this.password;
}
/**
* @param password The password to set.
*/
public final void setPassword(final String password) {
this.password = password;
}
/**
* @return Returns the userName.
*/
public final String getUsername() {
return this.username;
}
/**
* @param userName The userName to set.
*/
public final void setUsername(final String userName) {
this.username = userName;
}
public String toString() {
return this.username;
}
public boolean equals(final Object obj) {
if (obj == null || !obj.getClass().equals(this.getClass())) {
return false;
}
final EcardCredentials c = (EcardCredentials) obj;
return this.idtype.equals(c.getIdtype()) && this.username.equals(c.getUsername())
&& this.password.equals(c.getPassword());
}
public int hashCode() {
return this.idtype.hashCode() ^ this.username.hashCode() ^ this.password.hashCode();
}
}
2. 部署自己的authenticationHandlers
deployerConfigContext.xml:
<property name="credentialsToPrincipalResolvers">
<list>
<bean
class="com.nlcd.cas.authentication.principal.EcardCredentialsToPrincipalResolver" />
<bean
class="org.jasig.cas.authentication.principal.HttpBasedServiceCredentialsToPrincipalResolver" />
</list>
</property>
<property name="authenticationHandlers">
<list>
<bean class="org.jasig.cas.authentication.handler.support.HttpBasedServiceCredentialsAuthenticationHandler"
p:httpClient-ref="httpClient" />
<bean
class="com.nlcd.cas.authentication.handler.support.EcardAuthenticationHandler" />
</list>
</property>
EcardCredentialsToPrincipalResolver:
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jasig.cas.authentication.principal.CredentialsToPrincipalResolver;
import org.jasig.cas.authentication.principal.Credentials;
import org.jasig.cas.authentication.principal.Principal;
import org.jasig.cas.authentication.principal.SimplePrincipal;
public final class EcardCredentialsToPrincipalResolver implements
CredentialsToPrincipalResolver {
/** Logging instance. */
private final Log log = LogFactory.getLog(getClass());
public Principal resolvePrincipal(final Credentials credentials) {
final EcardCredentials ecardCredentials = (EcardCredentials) credentials;
if (log.isDebugEnabled()) {
log.debug("Creating SimplePrincipal for ["
+ ecardCredentials.getUsername() + "]");
}
return new SimplePrincipal(ecardCredentials.getUsername());
}
public boolean supports(final Credentials credentials) {
return credentials != null
&& EcardCredentials.class.isAssignableFrom(credentials
.getClass());
}
}
EcardAuthenticationHandler:
import org.jasig.cas.authentication.handler.AuthenticationException;
import org.jasig.cas.authentication.handler.AuthenticationHandler;
import org.jasig.cas.authentication.principal.Credentials;
import org.jasig.cas.util.annotation.NotNull;
import com.nlcd.cas.authentication.principal.EcardCredentials;
public final class EcardAuthenticationHandler implements AuthenticationHandler {
private static final Class<EcardCredentials> DEFAULT_CLASS = EcardCredentials.class;
/** Class that this instance will support. */
@NotNull
private Class<?> classToSupport = DEFAULT_CLASS;
private boolean supportSubClasses = true;
public EcardAuthenticationHandler() {
}
public final boolean authenticate(final Credentials credentials)
throws AuthenticationException {
//TODO: your code here
return true;
}
public final boolean supports(final Credentials credentials) {
return credentials != null
&& (this.classToSupport.equals(credentials.getClass()) || (this.classToSupport
.isAssignableFrom(credentials.getClass()))
&& this.supportSubClasses);
}
}
3. 配置Tomcat使用SSL安全認證
生成服務器端密鑰:
keytool -genkey -alias nlcdcas -keyalg RSA -keypass changeit -storepass changeit -keystore server.keystore
您的名字與姓氏是什么？
[192.168.61.56]： 192.168.61.56
您的組織單位名稱是什么？
[nlce]： nlcd
您的組織名稱是什么？
[Unknown]： nlcd
您所在的城市或區域名稱是什么？
[Unknown]： beijing
您所在的州或省份名稱是什么？
[Unknown]： beijing
該單位的兩字母國家代碼是什么
[Unknown]： cn
CN=192.168.61.56, OU=nlcd, O=nlcd, L=beijing, ST=beijing, C=cn 正確嗎？
[否]： y
生成服務器端證書:
keytool -export -alias nlcdcas -storepass changeit -file server.cer -keystore server.keystore
導入證書文件到cacerts 文件中:
keytool -import -trustcacerts -alias server -file server.cer -keystore cacerts -storepass changeit
把cacerts文件，拷貝到<JAVA_HOME>\jre\lib\security目錄下;server.keystore拷貝到Tomcat安裝目錄下
修改Tomcat的配置文件server.xml把以下補注釋的內容打開
<Connector port="8443" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" disableUploadTimeout="true"
acceptCount="100" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />
加入紅字部份后的內容如下：
<Connector port="8443" maxHttpHeaderSize="8192"
keystorePass="changeit" keystoreFile="/server.keystore"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" disableUploadTimeout="true"
acceptCount="100" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />