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/*
* Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
*
* 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.traccar.api;
import org.traccar.Context;
import org.traccar.api.resource.SessionResource;
import org.traccar.helper.Log;
import org.traccar.model.User;
import javax.annotation.security.PermitAll;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ResourceInfo;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;
import javax.xml.bind.DatatypeConverter;
import java.lang.reflect.Method;
import java.nio.charset.StandardCharsets;
import java.sql.SQLException;
public class SecurityRequestFilter implements ContainerRequestFilter {
public static final String AUTHORIZATION_HEADER = "Authorization";
public static final String WWW_AUTHENTICATE = "WWW-Authenticate";
public static final String BASIC_REALM = "Basic realm=\"api\"";
public static final String X_REQUESTED_WITH = "X-Requested-With";
public static final String XML_HTTP_REQUEST = "XMLHttpRequest";
public static String[] decodeBasicAuth(String auth) {
auth = auth.replaceFirst("[B|b]asic ", "");
byte[] decodedBytes = DatatypeConverter.parseBase64Binary(auth);
if (decodedBytes != null && decodedBytes.length > 0) {
return new String(decodedBytes, StandardCharsets.US_ASCII).split(":", 2);
}
return null;
}
@javax.ws.rs.core.Context
private HttpServletRequest request;
@javax.ws.rs.core.Context
private ResourceInfo resourceInfo;
@Override
public void filter(ContainerRequestContext requestContext) {
if (requestContext.getMethod().equals("OPTIONS")) {
return;
}
SecurityContext securityContext = null;
try {
String authHeader = requestContext.getHeaderString(AUTHORIZATION_HEADER);
if (authHeader != null) {
try {
String[] auth = decodeBasicAuth(authHeader);
User user = Context.getPermissionsManager().login(auth[0], auth[1]);
if (user != null) {
Context.getStatisticsManager().registerRequest(user.getId());
securityContext = new UserSecurityContext(new UserPrincipal(user.getId()));
}
} catch (SQLException e) {
throw new WebApplicationException(e);
}
} else if (request.getSession() != null) {
Long userId = (Long) request.getSession().getAttribute(SessionResource.USER_ID_KEY);
if (userId != null) {
Context.getPermissionsManager().checkUserEnabled(userId);
Context.getStatisticsManager().registerRequest(userId);
securityContext = new UserSecurityContext(new UserPrincipal(userId));
}
}
} catch (SecurityException e) {
Log.warning(e);
}
if (securityContext != null) {
requestContext.setSecurityContext(securityContext);
} else {
Method method = resourceInfo.getResourceMethod();
if (!method.isAnnotationPresent(PermitAll.class)) {
Response.ResponseBuilder responseBuilder = Response.status(Response.Status.UNAUTHORIZED);
if (!XML_HTTP_REQUEST.equals(request.getHeader(X_REQUESTED_WITH))) {
responseBuilder.header(WWW_AUTHENTICATE, BASIC_REALM);
}
throw new WebApplicationException(responseBuilder.build());
}
}
}
}
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