source: ether_statistics/web/src/com/ether/ControllerEponge.java

package com.ether;

import com.ether.account.Account;
import com.ether.annotation.ControllerMethod;
import com.ether.annotation.ParamName;
import net.sf.json.JSONObject;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jetbrains.annotations.NotNull;

import javax.servlet.http.HttpServletRequest;
import java.security.DigestException;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;

/**
 * @author vmipsl
 * @date 15 march 2012
 */
public class ControllerEponge
        extends ControllerEther
{
    /** *********************************************************** **/
    /** *********************** VIEWS ***************************** **/
    /** *********************************************************** **/
    /**
     * Home method
     *
     * @return
     * @throws WebException
     */
    @ControllerMethod(view = VIEW_INIT)
    public Map<String, Object> home()
            throws WebException
    {
        return new HashMap<String, Object>();
    }

    /** *********************************************************** **/
    /** *********************** CALLS ***************************** **/
    /** *********************************************************** **/
    /**
     * This method logs a user
     *
     * @param login
     * @param password
     * @param request
     * @return
     * @throws ServiceException
     */
    @ControllerMethod(requestMandatory = true, jsonResult = true)
    public JSONObject login( @ParamName(ParameterConstants.PARAMETER_LOGIN) final String login,
                             @ParamName(ParameterConstants.PARAMETER_PWD) final String password,
                             @NotNull final HttpServletRequest request )
            throws WebException
    {
        final JSONObject jSONUser = new JSONObject();
        final JSONObject result = new JSONObject();

        if( login != null && password != null )
        {
            try
            {
                final Account account = getEtherService().getAccountByLogin( login );
                final String encryptedPassword = EtherHelper.encryptPassword( password );
                if( account == null )
                    throw new WebException( WebException.WebCode.ERROR_LOGIN_NOT_FOUND, "No login found", WebException.getExceptionThrowable() );
                else if( !encryptedPassword.equals( account.getPassword() ) )
                    throw new WebException( WebException.WebCode.ERROR_PASSWORD, "Wrong password", WebException.getExceptionThrowable() );
                else
                {
                    request.getSession().setAttribute( "SES_ACCOUNT", account );
                    jSONUser.put( "name", account.getName() );
                    jSONUser.put( "role", account.getRole() );
                }
            }
            catch( DigestException e )
            {
                throw new WebException( WebException.WebCode.ERROR_ENCRYPT_PASSWORD, "Error to encrypt password", WebException.getExceptionThrowable() );
            }
            catch( NoSuchAlgorithmException e )
            {
                throw new WebException( WebException.WebCode.ERROR_ENCRYPT_PASSWORD, "Error to encrypt password", WebException.getExceptionThrowable() );
            }
            catch( ServiceException e )
            {
                throw new WebException( WebException.WebCode.ERROR_LOGIN_NOT_FOUND, "Error no login found", WebException.getExceptionThrowable() );
            }
        }

        if( !jSONUser.isEmpty() )
            result.put( "jSONUser", jSONUser );
        return result;
    }

    @ControllerMethod(requestMandatory = true, jsonResult = true)
    public JSONObject logout( @NotNull final HttpServletRequest request )
            throws WebException
    {
        request.getSession().setAttribute( "SES_ACCOUNT", null );
        request.getSession().invalidate();

        return new JSONObject();
    }

    private static final Log LOGGER = LogFactory.getLog( ControllerEponge.class );
    private static final String VIEW_INIT = "init";
}