/*
 * 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.commons.fileupload2.servlet;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload2.Constants;
import org.apache.commons.fileupload2.FileItem;
import org.apache.commons.fileupload2.FileUploadTest;
import org.apache.commons.fileupload2.MockHttpServletRequest;
import org.apache.commons.fileupload2.disk.DiskFileItemFactory;
import org.junit.jupiter.api.Test;

/**
 * Test for {@link ServletFileUpload}.
 *
 * @see FileUploadTest
 * @since 1.4
 */
public class ServletFileUploadTest {

    /**
     * Test case for <a href="https://issues.apache.org/jira/browse/FILEUPLOAD-210">
     */
    @Test
    public void parseParameterMap()
            throws Exception {
        final String text = "-----1234\r\n" +
                      "Content-Disposition: form-data; name=\"file\"; filename=\"foo.tab\"\r\n" +
                      "Content-Type: text/whatever\r\n" +
                      "\r\n" +
                      "This is the content of the file\n" +
                      "\r\n" +
                      "-----1234\r\n" +
                      "Content-Disposition: form-data; name=\"field\"\r\n" +
                      "\r\n" +
                      "fieldValue\r\n" +
                      "-----1234\r\n" +
                      "Content-Disposition: form-data; name=\"multi\"\r\n" +
                      "\r\n" +
                      "value1\r\n" +
                      "-----1234\r\n" +
                      "Content-Disposition: form-data; name=\"multi\"\r\n" +
                      "\r\n" +
                      "value2\r\n" +
                      "-----1234--\r\n";
        final byte[] bytes = text.getBytes(StandardCharsets.US_ASCII);
        final HttpServletRequest request = new MockHttpServletRequest(bytes, Constants.CONTENT_TYPE);

        final ServletFileUpload upload = new ServletFileUpload(new DiskFileItemFactory());
        final Map<String, List<FileItem>> mappedParameters = upload.parseParameterMap(request);
        assertTrue(mappedParameters.containsKey("file"));
        assertEquals(1, mappedParameters.get("file").size());

        assertTrue(mappedParameters.containsKey("field"));
        assertEquals(1, mappedParameters.get("field").size());

        assertTrue(mappedParameters.containsKey("multi"));
        assertEquals(2, mappedParameters.get("multi").size());
    }


    @Test
    public void parseImpliedUtf8()
        throws Exception {
        // utf8 encoded form-data without explicit content-type encoding
        final String text = "-----1234\r\n" +
                "Content-Disposition: form-data; name=\"utf8Html\"\r\n" +
                "\r\n" +
                "Thís ís the coñteñt of the fíle\n" +
                "\r\n" +
                "-----1234--\r\n";

        final byte[] bytes = text.getBytes(StandardCharsets.UTF_8);
        final HttpServletRequest request = new MockHttpServletRequest(bytes, Constants.CONTENT_TYPE);

        final DiskFileItemFactory fileItemFactory = new DiskFileItemFactory();
        fileItemFactory.setDefaultCharset("UTF-8");
        final ServletFileUpload upload = new ServletFileUpload(fileItemFactory);
        final List<FileItem> fileItems = upload.parseRequest(request);
        final FileItem fileItem = fileItems.get(0);
        assertTrue(fileItem.getString().contains("coñteñt"), fileItem.getString());
    }
}