package org.apache.catalina.valves.rewrite;

import java.nio.charset.StandardCharsets;

import org.junit.Assert;
import org.junit.Test;

import org.apache.catalina.Context;
import org.apache.catalina.servlets.DefaultServlet;
import org.apache.catalina.startup.Tomcat;
import org.apache.catalina.startup.TomcatBaseTest;
import org.apache.tomcat.util.buf.ByteChunk;

public class TestRedirect extends TomcatBaseTest {


    @Test
    public void testNonAsciiQueryString() throws Exception {
        doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c?filename=$1&$2 [B]", "/b/file01/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95",
                "/c", "filename=file01&id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95");
    }


    @Test
    public void testNonAsciiQueryStringAndRedirectPath() throws Exception {
        doTestRewrite("RewriteRule ^/b/(.*)/(.*)/(.*) /c/$1?filename=$2&$3 [B,R]", "/b/%E5%9C%A8%E7%BA%BF/file01/id=%E6%B5%8B%E8%AF%95",
                "/c/%E5%9C%A8%E7%BA%BF", "filename=file01&id=%E6%B5%8B%E8%AF%95");
    }

    

    @SuppressWarnings("deprecation")
	private void doTestRewrite(String config, String request, String expectedURI,
            String expectedQueryString) 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 = getUrl("http://localhost:" + getPort() + request);
        res.setCharset(StandardCharsets.UTF_8);

        String body = res.toString();
        RequestDescriptor requestDesc = SnoopResult.parse(body);
        //System.out.println(request+" "+ 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);
        }
    }
}