/**
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.waveprotocol.box.server.robots;
import com.google.common.base.Strings;
import com.google.gxp.base.GxpContext;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.google.inject.name.Named;
import org.waveprotocol.box.server.CoreSettings;
import org.waveprotocol.box.server.account.RobotAccountData;
import org.waveprotocol.box.server.gxp.RobotRegistrationPage;
import org.waveprotocol.box.server.gxp.RobotRegistrationSuccessPage;
import org.waveprotocol.box.server.persistence.PersistenceException;
import org.waveprotocol.box.server.robots.register.RobotRegistrar;
import org.waveprotocol.box.server.robots.util.RobotsUtil.RobotRegistrationException;
import org.waveprotocol.wave.model.wave.InvalidParticipantAddress;
import org.waveprotocol.wave.model.wave.ParticipantId;
import org.waveprotocol.wave.util.logging.Log;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet for Robot Registration.
*
* @author ljvderijk@google.com (Lennard de Rijk)
*/
@SuppressWarnings("serial")
@Singleton
public class RobotRegistrationServlet extends HttpServlet {
private static final String CREATE_PATH = "/create";
private static final Log LOG = Log.get(RobotRegistrationServlet.class);
private final RobotRegistrar robotRegistrar;
private final String domain;
private final String analyticsAccount;
@Inject
private RobotRegistrationServlet(@Named(CoreSettings.WAVE_SERVER_DOMAIN) String domain,
RobotRegistrar robotRegistrar,
@Named(CoreSettings.ANALYTICS_ACCOUNT) String analyticsAccount) {
this.robotRegistrar = robotRegistrar;
this.domain = domain;
this.analyticsAccount = analyticsAccount;
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
String pathInfo = req.getPathInfo();
if (CREATE_PATH.equals(pathInfo)) {
doRegisterGet(req, resp, "");
} else {
resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
String pathInfo = req.getPathInfo();
if (CREATE_PATH.equals(pathInfo)) {
doRegisterPost(req, resp);
} else {
resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
}
}
/**
* Handles GET request for the register page.
*
* @param message non-null but optional message to show on the page
*/
private void doRegisterGet(HttpServletRequest req, HttpServletResponse resp, String message)
throws IOException {
RobotRegistrationPage.write(resp.getWriter(), new GxpContext(req.getLocale()), domain, message,
analyticsAccount);
resp.setContentType("text/html");
resp.setStatus(HttpServletResponse.SC_OK);
}
/**
* Handles POST request for the register page.
*/
private void doRegisterPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
String username = req.getParameter("username");
String location = req.getParameter("location");
if (Strings.isNullOrEmpty(username) || Strings.isNullOrEmpty(location)) {
doRegisterGet(req, resp, "Please complete all fields.");
return;
}
ParticipantId id;
try {
id = ParticipantId.of(username + "@" + domain);
} catch (InvalidParticipantAddress e) {
doRegisterGet(req, resp, "Invalid username specified, use alphanumeric characters only.");
return;
}
RobotAccountData robotAccount = null;
try{
robotAccount = robotRegistrar.registerNew(id, location);
} catch (RobotRegistrationException e) {
doRegisterGet(req, resp, e.getMessage());
return;
} catch (PersistenceException e) {
LOG.severe("Failed to retrieve account data for " + id, e);
doRegisterGet(req, resp, "Failed to retrieve account data for " + id.getAddress());
return;
}
onRegisterSuccess(req, resp, robotAccount);
}
/**
* Shows the page that signals that a robot was successfully registered a
* robot. It will show the robot's token and token secret to use for the
* Active API.
*
* @param robotAccount the newly registered robot account.
*/
private void onRegisterSuccess(HttpServletRequest req, HttpServletResponse resp,
RobotAccountData robotAccount) throws IOException {
RobotRegistrationSuccessPage.write(resp.getWriter(), new GxpContext(req.getLocale()),
robotAccount.getId().getAddress(), robotAccount.getConsumerSecret(), analyticsAccount);
resp.setContentType("text/html");
resp.setStatus(HttpServletResponse.SC_OK);
}
}