import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
@Override
public SaslClient createSaslClient(String[] mechanisms,
		String authorizationId, String protocol, String serverName,
		Map<String, ?> props, CallbackHandler cbh) throws SaslException {
	for (String mech: mechanisms) {
		if ("PLAIN".equals(mech)) {
			return new PlainSaslClient(authorizationId, cbh);
		} else
		if ("DIGEST-MD5".equals(mech)) {
			return DigestMD5SaslClient.getClient(
				authorizationId,
				protocol,
				serverName,
				props,
				cbh
			);
		}
	}
	return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
public SaslClient createSaslClient(String[] mechanisms, String authorizationId, String protocol,
                                   String serverName, Map<String, ?> props, CallbackHandler cbh)
throws SaslException
{
    for (int i = 0; i < mechanisms.length; i++)
    {
        if (mechanisms[i].equals(MECHANISM))
        {
            if (cbh == null)
            {
                throw new SaslException("CallbackHandler must not be null");
            }

            String[] mechs = {"CRAM-MD5"};
            return Sasl.createSaslClient(mechs, authorizationId, protocol, serverName, props, cbh);
        }
    }
    return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
public static SaslClient createSaslClient(String[] mechanisms,
		String authanticationID, String protocol, String serverName,
		Map<String, ?> prop, CallbackHandler cbh) throws SaslException {
	if (mechanisms == null) {
		throw new NullPointerException("auth.33"); //$NON-NLS-1$
	}
	SaslClientFactory fact = getSaslClientFactories().nextElement();
	String[] mech = fact.getMechanismNames(null);
	boolean is = false;
	if (mech != null) {
		for (int j = 0; j < mech.length; j++) {
			for (int n = 0; n < mechanisms.length; n++) {
				if (mech[j].equals(mechanisms[n])) {
					is = true;
					break;
				}
			}
		}
	}
	if (is) {
		return fact.createSaslClient(mechanisms, authanticationID,
				protocol, serverName, prop, cbh);
	}
	return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
public SaslClient createSaslClient(String[] mechanisms,
		String authorizationId, String protocol, String serverName,
		Map<String, ?> props, CallbackHandler cbh) throws SaslException {
	for (int i = 0; i < mechanisms.length; i++) {
		if (mechanisms[i].equals(MECHANISM)) {
			if (cbh == null) {
				throw new SaslException("CallbackHandler must not be null");
			}

			String[] mechs = { "CRAM-MD5" };
			return Sasl.createSaslClient(mechs, authorizationId, protocol,
					serverName, props, cbh);
		}
	}
	return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
public static SaslClient createSaslClient(String[] mechanisms, String authanticationID,
        String protocol, String serverName, Map<String, ?> prop, CallbackHandler cbh)
        throws SaslException {
    if (mechanisms == null) {
        throw new NullPointerException("auth.33"); //$NON-NLS-1$
    }
    SaslClientFactory fact = getSaslClientFactories().nextElement();
    String[] mech = fact.getMechanismNames(null);
    boolean is = false;
    if (mech != null) {
        for (int j = 0; j < mech.length; j++) {
            for (int n = 0; n < mechanisms.length; n++) {
                if (mech[j].equals(mechanisms[n])) {
                    is = true;
                    break;
                }
            }
        }
    }
    if (is) {
        return fact.createSaslClient(
            mechanisms,
            authanticationID,
            protocol,
            serverName,
            prop,
            cbh
        );
    }
    return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
public SaslClient createSaslClient(String[] mechs, String authorizationId, String protocol,
                                   String serverName, Map props, CallbackHandler cbh)
throws SaslException 
{
    for (int i = 0; i < mechs.length; i++)
    {
        if (mechs[i].equals("PLAIN"))
        {
            return new PlainSaslClient(authorizationId, cbh);
        }
    }
    return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
@Override
public SaslClient createSaslClient(String[] mechanisms,
		String authorizationId, String protocol, String serverName,
		Map<String, ?> props, CallbackHandler cbh) throws SaslException {
	for (String mech: mechanisms) {
		if ("PLAIN".equals(mech)) {
			return new PlainSaslClient(authorizationId, cbh);
		} else
		if ("DIGEST-MD5".equals(mech)) {
			return DigestMD5SaslClient.getClient(
				authorizationId,
				protocol,
				serverName,
				props,
				cbh
			);
		}
		if ("EXTERNAL".equals(mech)) {
			return ExternalSaslClient.getClient(
				authorizationId,
				protocol,
				serverName,
				props,
				cbh
			);
		}
	}
	return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
@Override
public SaslClient createSaslClient(String[] mechanisms,
		String authorizationId, String protocol, String serverName,
		Map<String, ?> props, CallbackHandler cbh) throws SaslException {
	for (String mech : mechanisms) {
		if ("PLAIN".equals(mech)) {
			return new PlainSaslClient(authorizationId, cbh);
		} else if ("DIGEST-MD5".equals(mech)) {
			return DigestMD5SaslClient.getClient(authorizationId, protocol,
					serverName, props, cbh);
		}
	}
	return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
@SuppressWarnings("rawtypes")
public SaslClient createSaslClient(String[] mechs, String authorizationId,
		String protocol, String serverName, Map props, CallbackHandler cbh)
		throws SaslException {
	for (int i = 0; i < mechs.length; i++) {
		if (mechs[i].equals("PLAIN")) {
			return new PlainSaslClient(authorizationId, cbh);
		}
	}
	return null;
}
 

import org.apache.harmony.javax.security.sasl.SaslClient; //导入依赖的package包/类
/**
 * Creates an DigestMD5SaslClient object using the parameters supplied.
 * Assumes that the QOP, STRENGTH, and SERVER_AUTH properties are
 * contained in props
 *
 * @param authorizationId  The possibly null protocol-dependent
 *                     identification to be used for authorization. If
 *                     null or empty, the server derives an authorization
 *                     ID from the client's authentication credentials.
 *                     When the SASL authentication completes
 *                     successfully, the specified entity is granted
 *                     access.
 *
 * @param protocol     The non-null string name of the protocol for which
 *                     the authentication is being performed (e.g. "ldap")
 *
 * @param serverName   The non-null fully qualified host name of the server
 *                     to authenticate to
 *
 * @param props        The possibly null set of properties used to select
 *                     the SASL mechanism and to configure the
 *                     authentication exchange of the selected mechanism.
 *                     See the Sasl class for a list of standard properties.
 *                     Other, possibly mechanism-specific, properties can
 *                     be included. Properties not relevant to the selected
 *                     mechanism are ignored.
 *
 * @param cbh          The possibly null callback handler to used by the
 *                     SASL mechanisms to get further information from the
 *                     application/library to complete the authentication.
 *                     For example, a SASL mechanism might require the
 *                     authentication ID, password and realm from the
 *                     caller. The authentication ID is requested by using
 *                     a NameCallback. The password is requested by using
 *                     a PasswordCallback. The realm is requested by using
 *                     a RealmChoiceCallback if there is a list of realms
 *                     to choose from, and by using a RealmCallback if the
 *                     realm must be entered.
 *
 * @return            A possibly null SaslClient created using the
 *                     parameters supplied. If null, this factory cannot
 *                     produce a SaslClient using the parameters supplied.
 *
 * @exception SaslException  If a SaslClient instance cannot be created
 *                     because of an error
 */
public static SaslClient getClient(
    String          authorizationId,
    String          protocol,
    String          serverName,
    Map             props,
    CallbackHandler cbh)
{
    String desiredQOP = (String)props.get(Sasl.QOP);
    String desiredStrength = (String)props.get(Sasl.STRENGTH);
    String serverAuth = (String)props.get(Sasl.SERVER_AUTH);

    //only support qop equal to auth
    if ((desiredQOP != null) && !"auth".equals(desiredQOP))
        return null;

    //doesn't support server authentication
    if ((serverAuth != null) && !"false".equals(serverAuth))
        return null;

    //need a callback handler to get the password
    if (cbh == null)
        return null;

    return new DigestMD5SaslClient(authorizationId, protocol,
                                   serverName, props, cbh);
}