/
DoSFilterTestCase.java
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/
DoSFilterTestCase.java
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/*
* Copyright 2018 ZXing authors
*
* 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 com.google.zxing.web;
import org.junit.Assert;
import org.junit.Test;
import org.springframework.mock.web.MockFilterChain;
import org.springframework.mock.web.MockFilterConfig;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import javax.servlet.Filter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Arrays;
/**
* Tests {@link DoSFilter} implementations.
*/
public final class DoSFilterTestCase extends Assert {
private static final int MAX_ACCESS_PER_TIME = 10;
@Test
public void testRedirect() throws Exception {
for (DoSFilter filter : Arrays.asList(new ChartDoSFilter(), new DecodeDoSFilter())) {
initFilter(filter);
try {
for (int i = 0; i < MAX_ACCESS_PER_TIME; i++) {
testRequest(filter, "1.2.3.4", null, HttpServletResponse.SC_OK);
}
testRequest(filter, "1.2.3.4", null, HttpServletResponse.SC_FORBIDDEN);
} finally {
filter.destroy();
}
}
}
@Test
public void testNoRemoteHost() throws Exception {
Filter filter = new DecodeDoSFilter();
initFilter(filter);
try {
testRequest(filter, null, null, HttpServletResponse.SC_FORBIDDEN);
testRequest(filter, null, "1.1.1.1", HttpServletResponse.SC_FORBIDDEN);
} finally {
filter.destroy();
}
}
@Test
public void testProxy() throws Exception {
Filter filter = new DecodeDoSFilter();
initFilter(filter);
try {
for (int i = 0; i < MAX_ACCESS_PER_TIME; i++) {
testRequest(filter, "1.2.3.4", "1.1.1." + i + ", proxy1", HttpServletResponse.SC_OK);
}
testRequest(filter, "1.2.3.4", "1.1.1.0", HttpServletResponse.SC_FORBIDDEN);
} finally {
filter.destroy();
}
}
private void initFilter(Filter filter) throws ServletException {
MockFilterConfig config = new MockFilterConfig();
config.addInitParameter("maxAccessPerTime", Integer.toString(MAX_ACCESS_PER_TIME));
config.addInitParameter("accessTimeSec", "60");
config.addInitParameter("maxEntries", "100");
filter.init(config);
}
private void testRequest(Filter filter, String host, String proxy, int expectedStatus)
throws IOException, ServletException {
MockHttpServletRequest request = new MockHttpServletRequest();
request.setRequestURI("/");
request.setRemoteAddr(host);
if (proxy != null) {
request.addHeader("X-Forwarded-For", proxy);
}
HttpServletResponse response = new MockHttpServletResponse();
filter.doFilter(request, response, new MockFilterChain());
assertEquals(expectedStatus, response.getStatus());
}
}