/src/main/java/org/expressme/openid/Association.java

package org.expressme.openid;



import java.text.SimpleDateFormat;



/**

 * Assocation between RP and OP, and will be cached in memory for a certain time.

 * 

 * @author Michael Liao (askxuefeng@gmail.com)

 */

public class Association {



    /**

     * Session type constant "no-encryption".

     */

    public static final String SESSION_TYPE_NO_ENCRYPTION = "no-encryption";



    /**

     * Association type constant "HMAC-SHA1".

     */

    public static final String ASSOC_TYPE_HMAC_SHA1 = "HMAC-SHA1";



    private String session_type;

    private String assoc_type;

    private String assoc_handle;

    private String mac_key;

    private byte[] raw_mac_key;

    private long expired;



    /**

     * Get session type.

     */

    public String getSessionType() { return session_type; }



    /**

     * Set session type.

     */

    public void setSessionType(String session_type) { this.session_type = session_type; }



    /**

     * Get association type.

     */

    public String getAssociationType() { return assoc_type; }



    /**

     * Set association type.

     */

    public void setAssociationType(String assoc_type) { this.assoc_type = assoc_type; }



    /**

     * Get association handle.

     */

    public String getAssociationHandle() { return assoc_handle; }



    /**

     * Set association handle.

     */

    public void setAssociationHandle(String assoc_handle) { this.assoc_handle = assoc_handle; }



    /**

     * Get MAC key.

     */

    public String getMacKey() { return mac_key; }



    /**

     * Set MAC key.

     */

    public void setMacKey(String mac_key) {

        this.mac_key = mac_key;

        this.raw_mac_key = Base64.decode(mac_key);

    }



    /**

     * Get raw MAC key as bytes.

     */

    public byte[] getRawMacKey() {

        return raw_mac_key;

    }



    /**

     * Set max age in milliseconds.

     */

    public void setMaxAge(long maxAgeInMilliseconds) {

        this.expired = System.currentTimeMillis() + maxAgeInMilliseconds;

    }



    /**

     * Detect if this association is expired.

     */

    public boolean isExpired() {

        return System.currentTimeMillis() >= expired;

    }



    @Override

    public String toString() {

        StringBuilder sb = new StringBuilder(1024);

        sb.append("Association [")

          .append("session_type:").append(session_type).append(", ")

          .append("assoc_type:").append(assoc_type).append(", ")

          .append("assoc_handle:").append(assoc_handle).append(", ")

          .append("mac_key:").append(mac_key).append(", ")

          .append("expired:").append(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(expired))

          .append(']');

        return sb.toString();

    }

}