/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apache.catalina.valves.rewrite; import java.net.HttpURLConnection; import java.nio.charset.StandardCharsets; import java.util.HashMap; import java.util.List; import java.util.Map; import org.junit.Assert; import org.junit.Test; import org.apache.catalina.Context; import org.apache.catalina.servlets.DefaultServlet; import org.apache.catalina.startup.TesterServlet; import org.apache.catalina.startup.Tomcat; import org.apache.catalina.startup.TomcatBaseTest; import org.apache.tomcat.util.buf.ByteChunk; /* * Implementation note: * * A number of these tests involve the rewrite valve returning a HTTP Location * header that include un-encoded UTF-8 bytes. How the HTTP client handles these * depends on the default character encoding configured for the JVM running the * test. The tests expect the client to be configured with UTF-8 as the default * encoding. Use of any other encoding is likely to lead to test failures. */ public class TestRewriteValve extends TomcatBaseTest { @Test public void testNoRewrite() throws Exception { doTestRewrite("", "/a/%255A", "/a/%255A"); } @Test public void testBackslashPercentSign() throws Exception { doTestRewrite("RewriteRule ^(.*) /a/\\%5A", "/", "/a/%255A"); } @Test public void testNoopRewrite() throws Exception { doTestRewrite("RewriteRule ^(.*) $1", "/a/%255A", "/a/%255A"); } @Test public void testPathRewrite() throws Exception { doTestRewrite("RewriteRule ^/b(.*) /a$1", "/b/%255A", "/a/%255A"); } @Test public void testNonNormalizedPathRewrite() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /b/../a/$1", "/b/%255A", "/b/../a/%255A"); } // BZ 57863 @Test public void testRewriteMap01() throws Exception { doTestRewrite("RewriteMap mapa org.apache.catalina.valves.rewrite.TesterRewriteMapA\n" + "RewriteRule /b/(.*).html$ /c/${mapa:$1}", "/b/a.html", "/c/aa"); } @Test public void testRewriteMap02() throws Exception { doTestRewrite("RewriteMap mapa org.apache.catalina.valves.rewrite.TesterRewriteMapA\n" + "RewriteRule /b/(.*).html$ /c/${mapa:$1|dd}", "/b/x.html", "/c/dd"); } @Test public void testRewriteServerVar() throws Exception { doTestRewrite("RewriteRule /b/(.*).html$ /c%{SERVLET_PATH}", "/b/x.html", "/c/b/x.html"); } @Test public void testRewriteEnvVarAndServerVar() throws Exception { System.setProperty("some_variable", "something"); doTestRewrite("RewriteRule /b/(.*).html$ /c/%{ENV:some_variable}%{SERVLET_PATH}", "/b/x.html", "/c/something/b/x.html"); } @Test public void testRewriteServerVarAndEnvVar() throws Exception { System.setProperty("some_variable", "something"); doTestRewrite("RewriteRule /b/(.*).html$ /c%{SERVLET_PATH}/%{ENV:some_variable}", "/b/x.html", "/c/b/x.html/something"); } @Test public void testRewriteMissingCurlyBraceOnVar() throws Exception { try { doTestRewrite("RewriteRule /b/(.*).html$ /c%_{SERVLET_PATH}", "/b/x.html", "/c"); Assert.fail("IAE expected."); } catch (java.lang.IllegalArgumentException e) { // expected as %_{ is invalid } } @Test public void testRewriteMissingCurlyBraceOnMapper() throws Exception { try { doTestRewrite("RewriteRule /b/(.*).html$ /c$_{SERVLET_PATH}", "/b/x.html", "/c"); Assert.fail("IAE expected."); } catch (java.lang.IllegalArgumentException e) { // expected as $_{ is invalid } } // https://bz.apache.org/bugzilla/show_bug.cgi?id=60013 public void testRewriteWithEncoding02() throws Exception { doTestRewrite("RewriteRule ^/b/(.*)$ /c/?param=$1 [L]", "/b/%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c/", "param=\u5728\u7EBF\u6D4B\u8BD5"); } @Test public void testNonAsciiPath() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /c/$1", "/b/%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c/%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95"); } @Test public void testNonAsciiPathRedirect() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /c/$1 [R]", "/b/%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c/%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95"); } @Test public void testQueryString() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /c?$1", "/b/id=1", "/c", "id=1"); } @Test public void testQueryStringRemove() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /c/$1?", "/b/d?=1", "/c/d", null); } @Test public void testNonAsciiQueryString() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /c?$1", "/b/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c", "id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95"); } @Test public void testNonAsciiQueryStringAndPath() throws Exception { doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/$1?$2", "/b/%E5%9C%A8%E7%BA%BF/id=%E6%B5%8B%E8%AF%95", "/c/%E5%9C%A8%E7%BA%BF", "id=%E6%B5%8B%E8%AF%95"); } @Test public void testNonAsciiQueryStringAndRedirect() throws Exception { doTestRewrite("RewriteRule ^/b/(.*) /c?$1 [R]", "/b/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c", "id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95"); } @Test public void testNonAsciiQueryStringAndPathAndRedirect() throws Exception { doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/$1?$2 [R]", "/b/%E5%9C%A8%E7%BA%BF/id=%E6%B5%8B%E8%AF%95", "/c/%E5%9C%A8%E7%BA%BF", "id=%E6%B5%8B%E8%AF%95"); } @Test public void testNonAsciiQueryStringWithB() throws Exception { doTestRewrite("RewriteRule ^/b/(.*)/id=(.*) /c?filename=$1&id=$2 [B]", "/b/file01/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c", "filename=file01&id=%25E5%259C%25A8%25E7%25BA%25BF%25E6%25B5%258B%25E8%25AF%2595"); } @Test public void testNonAsciiQueryStringAndPathAndRedirectWithB() throws Exception { // Note the double encoding of the result (httpd produces the same result) doTestRewrite("RewriteRule ^/b/(.*)/(.*)/id=(.*) /c/$1?filename=$2&id=$3 [B,R]", "/b/%E5%9C%A8%E7%BA%BF/file01/id=%E6%B5%8B%E8%AF%95", "/c/%25E5%259C%25A8%25E7%25BA%25BF", "filename=file01&id=%25E6%25B5%258B%25E8%25AF%2595"); } @Test public void testUtf8WithBothQsFlagsNone() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8WithBothQsFlagsB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [B]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1"); } @Test public void testUtf8WithBothQsFlagsR() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8WithBothQsFlagsRB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1"); } @Test public void testUtf8WithBothQsFlagsRNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,NE]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", null); } @Test public void testUtf8WithBothQsFlagsRBNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,NE]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", null); } @Test public void testUtf8WithBothQsFlagsBQSA() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [B,QSA]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1&di=%C2%AE"); } @Test public void testUtf8WithBothQsFlagsRQSA() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,QSA]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1", "id=%C2%A1&di=%C2%AE"); } @Test public void testUtf8WithBothQsFlagsRBQSA() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,QSA]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1&di=%C2%AE"); } @Test public void testUtf8WithBothQsFlagsRNEQSA() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,NE,QSA]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", null); } @Test public void testUtf8WithBothQsFlagsRBNEQSA() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,NE,QSA]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", null); } @Test public void testUtf8WithOriginalQsFlagsNone() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1", "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8WithOriginalQsFlagsB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [B]", "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%C2%A1"); } @Test public void testUtf8WithOriginalQsFlagsR() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R]", "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8WithOriginalQsFlagsRB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B]", "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%C2%A1"); } @Test public void testUtf8WithOriginalQsFlagsRNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,NE]", "/b/%C2%A1?id=%C2%A1", null); } @Test public void testUtf8WithOriginalQsFlagsRBNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B,NE]", "/b/%C2%A1?id=%C2%A1", null); } @Test public void testUtf8WithRewriteQsFlagsNone() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2", "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8WithRewriteQsFlagsB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [B]", "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1"); } @Test public void testUtf8WithRewriteQsFlagsR() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R]", "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8WithBothQsFlagsQSA() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [QSA]", "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1", "id=%C2%A1&di=%C2%AE"); } @Test public void testUtf8WithRewriteQsFlagsRB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B]", "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1"); } @Test public void testUtf8WithRewriteQsFlagsRNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,NE]", "/b/%C2%A1/id=%C2%A1", null); } @Test public void testUtf8WithRewriteQsFlagsRBNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,NE]", "/b/%C2%A1/id=%C2%A1", null); } @Test public void testUtf8WithRewriteQsFlagsQSA() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [QSA]", "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1"); } @Test public void testUtf8FlagsNone() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1", "/b/%C2%A1", "/c/%C2%A1%C2%A1"); } @Test public void testUtf8FlagsB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [B]", "/b/%C2%A1", "/c/%C2%A1%25C2%25A1"); } @Test public void testUtf8FlagsR() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R]", "/b/%C2%A1", "/c/%C2%A1%C2%A1"); } @Test public void testUtf8FlagsRB() throws Exception { // Note %C2%A1 == \u00A1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B]", "/b/%C2%A1", "/c/%C2%A1%25C2%25A1"); } @Test public void testUtf8FlagsRNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,NE]", "/b/%C2%A1", null); } @Test public void testUtf8FlagsRBNE() throws Exception { // Note %C2%A1 == \u00A1 // Failing to escape the redirect means UTF-8 bytes in the Location // header which will be treated as if they are ISO-8859-1 doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B,NE]", "/b/%C2%A1", null); } @Test public void testFlagsNC() throws Exception { // https://bz.apache.org/bugzilla/show_bug.cgi?id=60116 doTestRewrite("RewriteCond %{QUERY_STRING} a=([a-z]*) [NC]\n" + "RewriteRule .* - [E=X-Test:%1]", "/c?a=aAa", "/c", null, "aAa"); } @Test public void testHostRewrite() throws Exception { // Based on report from users list that ':' was encoded and breaking // the redirect doTestRewrite("RewriteRule ^/b(.*) http://%{HTTP_HOST}:%{SERVER_PORT}/a$1 [R]", "/b/%255A", "/a/%255A"); } @Test public void testDefaultRedirect() throws Exception { // Disable the following of redirects for this test only boolean originalValue = HttpURLConnection.getFollowRedirects(); HttpURLConnection.setFollowRedirects(false); try { doTestRedirect("RewriteRule ^/from/a$ /to/b [R]", "/redirect/from/a", "/redirect/to/b", 302); } finally { HttpURLConnection.setFollowRedirects(originalValue); } } @Test public void testTempRedirect() throws Exception { // Disable the following of redirects for this test only boolean originalValue = HttpURLConnection.getFollowRedirects(); HttpURLConnection.setFollowRedirects(false); try { doTestRedirect("RewriteRule ^/from/a$ /to/b [R=temp]", "/redirect/from/a", "/redirect/to/b", 302); } finally { HttpURLConnection.setFollowRedirects(originalValue); } } @Test public void testPermanentRedirect() throws Exception { // Disable the following of redirects for this test only boolean originalValue = HttpURLConnection.getFollowRedirects(); HttpURLConnection.setFollowRedirects(false); try { doTestRedirect("RewriteRule ^/from/a$ /to/b [R=permanent]", "/redirect/from/a", "/redirect/to/b", 301); } finally { HttpURLConnection.setFollowRedirects(originalValue); } } @Test public void testSeeotherRedirect() throws Exception { // Disable the following of redirects for this test only boolean originalValue = HttpURLConnection.getFollowRedirects(); HttpURLConnection.setFollowRedirects(false); try { doTestRedirect("RewriteRule ^/from/a$ /to/b [R=seeother]", "/redirect/from/a", "/redirect/to/b", 303); } finally { HttpURLConnection.setFollowRedirects(originalValue); } } @Test public void test307Redirect() throws Exception { // Disable the following of redirects for this test only boolean originalValue = HttpURLConnection.getFollowRedirects(); HttpURLConnection.setFollowRedirects(false); try { doTestRedirect("RewriteRule ^/from/a$ /to/b [R=307]", "/redirect/from/a", "/redirect/to/b", 307); } finally { HttpURLConnection.setFollowRedirects(originalValue); } } @Test public void testBackReferenceRewrite() throws Exception { doTestRewrite("RewriteRule ^/b/(rest)?$ /c/$1", "/b/rest", "/c/rest"); } @Test public void testEmptyBackReferenceRewrite() throws Exception { doTestRewrite("RewriteRule ^/b/(rest)?$ /c/$1", "/b/", "/c/"); } private void doTestRewrite(String config, String request, String expectedURI) throws Exception { doTestRewrite(config, request, expectedURI, null); } private void doTestRewrite(String config, String request, String expectedURI, String expectedQueryString) throws Exception { doTestRewrite(config, request, expectedURI, expectedQueryString, null); } private void doTestRewrite(String config, String request, String expectedURI, String expectedQueryString, String expectedAttributeValue) throws Exception { Tomcat tomcat = getTomcatInstance(); // No file system docBase required Context ctx = tomcat.addContext("", null); RewriteValve rewriteValve = new RewriteValve(); ctx.getPipeline().addValve(rewriteValve); rewriteValve.setConfiguration(config); Tomcat.addServlet(ctx, "snoop", new SnoopServlet()); ctx.addServletMappingDecoded("/a/%5A", "snoop"); ctx.addServletMappingDecoded("/c/*", "snoop"); Tomcat.addServlet(ctx, "default", new DefaultServlet()); ctx.addServletMappingDecoded("/", "default"); tomcat.start(); ByteChunk res = new ByteChunk(); int rc = getUrl("http://localhost:" + getPort() + request, res, null); res.setCharset(StandardCharsets.UTF_8); if (expectedURI == null) { // Rewrite is expected to fail. Probably because invalid characters // were written into the request target Assert.assertEquals(400, rc); } else { String body = res.toString(); RequestDescriptor requestDesc = SnoopResult.parse(body); String requestURI = requestDesc.getRequestInfo("REQUEST-URI"); Assert.assertEquals(expectedURI, requestURI); if (expectedQueryString != null) { String queryString = requestDesc.getRequestInfo("REQUEST-QUERY-STRING"); Assert.assertEquals(expectedQueryString, queryString); } if (expectedAttributeValue != null) { String attributeValue = requestDesc.getAttribute("X-Test"); Assert.assertEquals(expectedAttributeValue, attributeValue); } } } private void doTestRedirect(String config, String request, String expectedURI, int expectedStatusCode) throws Exception { Tomcat tomcat = getTomcatInstance(); // No file system docBase required Context ctx = tomcat.addContext("redirect", null); RewriteValve rewriteValve = new RewriteValve(); ctx.getPipeline().addValve(rewriteValve); rewriteValve.setConfiguration(config); Tomcat.addServlet(ctx, "tester", new TesterServlet()); ctx.addServletMappingDecoded("/from/a", "tester"); ctx.addServletMappingDecoded("/to/b", "tester"); tomcat.start(); ByteChunk res = new ByteChunk(); Map<String, List<String>> resHead = new HashMap<>(); int rc = getUrl("http://localhost:" + getPort() + request, res, null, resHead); res.setCharset(StandardCharsets.UTF_8); if (expectedURI == null) { // Rewrite is expected to fail. Probably because invalid characters // were written into the request target Assert.assertEquals(400, rc); } else { List<String> locations = resHead.get("Location"); Assert.assertFalse(locations.isEmpty()); String redirectURI = locations.get(0); Assert.assertEquals(expectedURI, redirectURI); Assert.assertEquals(expectedStatusCode, rc); } } }