/*******************************************************************************
* Copyright 2013-2015 alladin-IT GmbH
*
* 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 at.alladin.rmbt.controlServer;
import java.lang.reflect.Type;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Locale;
import java.util.ResourceBundle;
import javax.naming.NamingException;
import org.joda.time.DateTime;
import org.json.JSONException;
import org.json.JSONObject;
import org.restlet.data.Reference;
import org.restlet.engine.header.Header;
import org.restlet.representation.Representation;
import org.restlet.resource.Options;
import org.restlet.resource.ResourceException;
import org.restlet.util.Series;
import at.alladin.rmbt.db.DbConnection;
import at.alladin.rmbt.shared.ResourceManager;
import at.alladin.rmbt.util.capability.Capabilities;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
public class ServerResource extends org.restlet.resource.ServerResource
{
protected Connection conn;
protected ResourceBundle labels;
protected ResourceBundle settings;
protected Capabilities capabilities = new Capabilities();
public static class MyDateTimeAdapter implements JsonSerializer<DateTime>, JsonDeserializer<DateTime>
{
public JsonElement serialize(DateTime src, Type typeOfSrc, JsonSerializationContext context)
{
return new JsonPrimitive(src.toString());
}
public DateTime deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException
{
return new DateTime(json.getAsJsonPrimitive().getAsString());
}
}
public void readCapabilities(final JSONObject request) throws JSONException {
if (request != null) {
if (request.has("capabilities")) {
capabilities = new Gson().fromJson(request.get("capabilities").toString(), Capabilities.class);
}
}
}
public static Gson getGson(boolean prettyPrint)
{
GsonBuilder gb = new GsonBuilder()
.registerTypeAdapter(DateTime.class, new MyDateTimeAdapter());
if (prettyPrint)
gb = gb.setPrettyPrinting();
return gb.create();
}
@Override
public void doInit() throws ResourceException
{
super.doInit();
settings = ResourceManager.getCfgBundle();
// Set default Language for System
Locale.setDefault(new Locale(settings.getString("RMBT_DEFAULT_LANGUAGE")));
labels = ResourceManager.getSysMsgBundle();
try {
if (getQuery().getNames().contains("capabilities")) {
capabilities = new Gson().fromJson(getQuery().getValues("capabilities"), Capabilities.class);
}
} catch (final Exception e) {
e.printStackTrace();
}
// Get DB-Connection
try
{
conn = DbConnection.getConnection();
}
catch (final NamingException e)
{
e.printStackTrace();
}
catch (final SQLException e)
{
System.out.println(labels.getString("ERROR_DB_CONNECTION_FAILED"));
e.printStackTrace();
}
}
@Override
protected void doRelease() throws ResourceException
{
try
{
if (conn != null)
conn.close();
}
catch (final SQLException e)
{
e.printStackTrace();
}
}
@SuppressWarnings("unchecked")
protected void addAllowOrigin()
{
Series<Header> responseHeaders = (Series<Header>) getResponse().getAttributes().get("org.restlet.http.headers");
if (responseHeaders == null)
{
responseHeaders = new Series<>(Header.class);
getResponse().getAttributes().put("org.restlet.http.headers", responseHeaders);
}
responseHeaders.add("Access-Control-Allow-Origin", "*");
responseHeaders.add("Access-Control-Allow-Methods", "GET,POST,OPTIONS");
responseHeaders.add("Access-Control-Allow-Headers", "Content-Type");
responseHeaders.add("Access-Control-Allow-Credentials", "false");
responseHeaders.add("Access-Control-Max-Age", "60");
}
@Options
public void doOptions(final Representation entity)
{
addAllowOrigin();
}
@SuppressWarnings("unchecked")
public String getIP()
{
final Series<Header> headers = (Series<Header>) getRequest().getAttributes().get("org.restlet.http.headers");
final String realIp = headers.getFirstValue("X-Real-IP", true);
if (realIp != null)
return realIp;
else
return getRequest().getClientInfo().getAddress();
}
@SuppressWarnings("unchecked")
public Reference getURL()
{
final Series<Header> headers = (Series<Header>) getRequest().getAttributes().get("org.restlet.http.headers");
final String realURL = headers.getFirstValue("X-Real-URL", true);
if (realURL != null)
return new Reference(realURL);
else
return getRequest().getOriginalRef();
}
protected String getSetting(String key, String lang)
{
if (conn == null)
return null;
try (final PreparedStatement st = conn.prepareStatement(
"SELECT value"
+ " FROM settings"
+ " WHERE key=? AND (lang IS NULL OR lang = ?)"
+ " ORDER BY lang NULLS LAST LIMIT 1");)
{
st.setString(1, key);
st.setString(2, lang);
try (final ResultSet rs = st.executeQuery();)
{
if (rs != null && rs.next())
return rs.getString("value");
}
return null;
}
catch (SQLException e)
{
e.printStackTrace();
return null;
}
}
}