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Add CORS header to allow any origin.

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We don't need CORS protection because we don't use cookies at all
(so a different origin cant exploit cookie saving to steal our
session).
This commit is contained in:
Matt Corallo 2014-01-09 20:50:52 -10:00
parent 8c74ad073b
commit e39016ad35
2 changed files with 46 additions and 0 deletions
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5
src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java
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@ -20,6 +20,7 @@ import com.google.common.base.Optional;
import com.yammer.dropwizard.Service;
import com.yammer.dropwizard.config.Bootstrap;
import com.yammer.dropwizard.config.Environment;
import com.yammer.dropwizard.config.FilterBuilder;
import com.yammer.dropwizard.db.DatabaseConfiguration;
import com.yammer.dropwizard.jdbi.DBIFactory;
import com.yammer.dropwizard.migrations.MigrationsBundle;
@ -62,9 +63,11 @@ import org.whispersystems.textsecuregcm.storage.PendingDeviceRegistrations;
import org.whispersystems.textsecuregcm.storage.PendingDevicesManager;
import org.whispersystems.textsecuregcm.storage.StoredMessageManager;
import org.whispersystems.textsecuregcm.storage.StoredMessages;
import org.whispersystems.textsecuregcm.util.CORSHeaderFilter;
import org.whispersystems.textsecuregcm.util.UrlSigner;
import org.whispersystems.textsecuregcm.workers.DirectoryCommand;
import java.io.IOException;
import java.security.Security;
import java.util.concurrent.TimeUnit;
@ -143,6 +146,8 @@ public class WhisperServerService extends Service<WhisperServerConfiguration> {
environment.addProvider(new IOExceptionMapper());
environment.addProvider(new RateLimitExceededExceptionMapper());
environment.addFilter(new CORSHeaderFilter(), "/*");
if (config.getGraphiteConfiguration().isEnabled()) {
GraphiteReporter.enable(15, TimeUnit.SECONDS,
config.getGraphiteConfiguration().getHost(),

41
src/main/java/org/whispersystems/textsecuregcm/util/CORSHeaderFilter.java Normal file
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@ -0,0 +1,41 @@
/**
* Copyright (C) 2014 Open WhisperSystems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whispersystems.textsecuregcm.util;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class CORSHeaderFilter implements Filter {
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
if (response instanceof HttpServletResponse) {
((HttpServletResponse) response).addHeader("Access-Control-Allow-Origin", "*");
((HttpServletResponse) response).addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
((HttpServletResponse) response).addHeader("Access-Control-Allow-Headers", "Authorization, Content-type");
}
chain.doFilter(request, response);
}
@Override public void init(FilterConfig filterConfig) throws ServletException { }
@Override public void destroy() { }
}