Added multipart/form HTTP entity impl
git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@617575 13f79535-47bb-0310-9956-ffa450edef68
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/*
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* $HeadURL$
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* $Revision$
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* $Date$
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*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package org.apache.http.client.mime;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.nio.charset.Charset;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Random;
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import org.apache.http.Header;
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import org.apache.http.HttpEntity;
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import org.apache.http.client.mime.content.ContentBody;
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import org.apache.http.message.BasicHeader;
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import org.apache.http.protocol.HTTP;
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import org.apache.james.mime4j.field.Field;
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import org.apache.james.mime4j.message.Message;
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/**
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* Multipart/form coded HTTP entity consisting of multiple
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* body parts.
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*
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* @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
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*/
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public class MultipartFormHttpEntity implements HttpEntity {
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/**
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* The pool of ASCII chars to be used for generating a multipart boundary.
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*/
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private final static char[] MULTIPART_CHARS =
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"-_1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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.toCharArray();
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private final HttpMultipart multipart;
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private final Header contentType;
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private long length;
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private boolean dirty;
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public MultipartFormHttpEntity(
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HttpMultipartMode mode,
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final String boundary,
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final Charset charset) {
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super();
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this.multipart = new HttpMultipart();
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this.contentType = new BasicHeader(
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HTTP.CONTENT_TYPE,
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generateContentType(boundary, charset));
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this.dirty = true;
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Message message = new Message();
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org.apache.james.mime4j.message.Header header = new RFC822Header();
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header.addField(
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Field.parse("Content-Type: " + this.contentType.getValue()));
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message.setHeader(header);
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this.multipart.setParent(message);
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if (mode == null) {
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mode = HttpMultipartMode.STRICT;
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}
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this.multipart.setMode(mode);
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}
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public MultipartFormHttpEntity(final HttpMultipartMode mode) {
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this(mode, null, null);
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}
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public MultipartFormHttpEntity() {
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this(HttpMultipartMode.STRICT, null, null);
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}
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protected String generateContentType(
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final String boundary,
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final Charset charset) {
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StringBuilder buffer = new StringBuilder();
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buffer.append("multipart/form-data; boundary=");
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if (boundary != null) {
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buffer.append(boundary);
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} else {
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Random rand = new Random();
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int count = rand.nextInt(11) + 30; // a random size from 30 to 40
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for (int i = 0; i < count; i++) {
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buffer.append(MULTIPART_CHARS[rand.nextInt(MULTIPART_CHARS.length)]);
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}
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}
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if (charset != null) {
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buffer.append("; charset=");
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buffer.append(charset.name());
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}
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return buffer.toString();
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}
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public void addPart(final String name, final ContentBody contentBody) {
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this.multipart.addBodyPart(new FormBodyPart(name, contentBody));
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this.dirty = true;
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}
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public boolean isRepeatable() {
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List<?> parts = this.multipart.getBodyParts();
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for (Iterator<?> it = parts.iterator(); it.hasNext(); ) {
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FormBodyPart part = (FormBodyPart) it.next();
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ContentBody body = (ContentBody) part.getBody();
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if (body.getContentLength() < 0) {
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return false;
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}
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}
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return true;
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}
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public boolean isChunked() {
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return !isRepeatable();
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}
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public boolean isStreaming() {
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return !isRepeatable();
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}
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public long getContentLength() {
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if (this.dirty) {
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this.length = this.multipart.getTotalLength();
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this.dirty = false;
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}
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return this.length;
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}
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public Header getContentType() {
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return this.contentType;
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}
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public Header getContentEncoding() {
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return null;
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}
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public void consumeContent()
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throws IOException, UnsupportedOperationException{
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if (isStreaming()) {
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throw new UnsupportedOperationException(
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"Streaming entity does not implement #consumeContent()");
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}
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}
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public InputStream getContent() throws IOException, UnsupportedOperationException {
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throw new UnsupportedOperationException(
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"Multipart form entity does not implement #getContent()");
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}
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public void writeTo(final OutputStream outstream) throws IOException {
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this.multipart.writeTo(outstream);
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}
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}
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@ -1,7 +1,7 @@
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/*
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* $HeadURL:$
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* $Revision:$
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* $Date:$
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* $HeadURL$
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* $Revision$
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* $Date$
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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@ -43,6 +43,7 @@ public class TestAll extends TestCase {
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public static Test suite() {
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TestSuite suite = new TestSuite();
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suite.addTest(TestMultipartForm.suite());
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suite.addTest(TestMultipartFormHttpEntity.suite());
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return suite;
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}
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@ -0,0 +1,158 @@
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/*
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* $HeadURL$
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* $Revision$
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* $Date$
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*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package org.apache.http.client.mime;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import org.apache.http.Header;
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import org.apache.http.HeaderElement;
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import org.apache.http.NameValuePair;
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import org.apache.http.client.mime.content.InputStreamBody;
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import org.apache.http.client.mime.content.StringBody;
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import org.apache.james.mime4j.util.CharsetUtil;
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import junit.framework.Test;
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import junit.framework.TestCase;
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import junit.framework.TestSuite;
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public class TestMultipartFormHttpEntity extends TestCase {
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// ------------------------------------------------------------ Constructor
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public TestMultipartFormHttpEntity(final String testName) throws IOException {
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super(testName);
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}
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// ------------------------------------------------------------------- Main
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public static void main(String args[]) {
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String[] testCaseName = { TestMultipartFormHttpEntity.class.getName() };
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junit.textui.TestRunner.main(testCaseName);
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}
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// ------------------------------------------------------- TestCase Methods
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public static Test suite() {
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return new TestSuite(TestMultipartFormHttpEntity.class);
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}
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public void testExplictContractorParams() throws Exception {
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MultipartFormHttpEntity entity = new MultipartFormHttpEntity(
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HttpMultipartMode.BROWSER_COMPATIBLE,
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"whatever",
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CharsetUtil.getCharset("UTF-8"));
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assertNull(entity.getContentEncoding());
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assertNotNull(entity.getContentType());
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Header header = entity.getContentType();
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HeaderElement[] elems = header.getElements();
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assertNotNull(elems);
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assertEquals(1, elems.length);
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HeaderElement elem = elems[0];
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assertEquals("multipart/form-data", elem.getName());
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NameValuePair p1 = elem.getParameterByName("boundary");
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assertNotNull(p1);
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assertEquals("whatever", p1.getValue());
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NameValuePair p2 = elem.getParameterByName("charset");
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assertNotNull(p2);
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assertEquals("UTF-8", p2.getValue());
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}
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public void testImplictContractorParams() throws Exception {
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MultipartFormHttpEntity entity = new MultipartFormHttpEntity();
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assertNull(entity.getContentEncoding());
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assertNotNull(entity.getContentType());
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Header header = entity.getContentType();
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HeaderElement[] elems = header.getElements();
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assertNotNull(elems);
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assertEquals(1, elems.length);
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HeaderElement elem = elems[0];
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assertEquals("multipart/form-data", elem.getName());
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NameValuePair p1 = elem.getParameterByName("boundary");
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assertNotNull(p1);
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String boundary = p1.getValue();
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assertNotNull(boundary);
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assertTrue(boundary.length() > 30);
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assertTrue(boundary.length() <= 40);
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NameValuePair p2 = elem.getParameterByName("charset");
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assertNull(p2);
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}
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public void testRepeatable() throws Exception {
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MultipartFormHttpEntity entity = new MultipartFormHttpEntity();
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entity.addPart("p1", new StringBody("blah blah"));
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entity.addPart("p2", new StringBody("yada yada"));
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assertTrue(entity.isRepeatable());
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assertFalse(entity.isChunked());
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assertFalse(entity.isStreaming());
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long len = entity.getContentLength();
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assertTrue(len == entity.getContentLength());
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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entity.writeTo(out);
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out.close();
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byte[] bytes = out.toByteArray();
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assertNotNull(bytes);
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assertTrue(bytes.length == len);
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assertTrue(len == entity.getContentLength());
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out = new ByteArrayOutputStream();
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entity.writeTo(out);
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out.close();
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bytes = out.toByteArray();
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assertNotNull(bytes);
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assertTrue(bytes.length == len);
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}
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public void testNonRepeatable() throws Exception {
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MultipartFormHttpEntity entity = new MultipartFormHttpEntity();
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entity.addPart("p1", new InputStreamBody(
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new ByteArrayInputStream("blah blah".getBytes()), null));
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entity.addPart("p2", new InputStreamBody(
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new ByteArrayInputStream("yada yada".getBytes()), null));
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assertFalse(entity.isRepeatable());
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assertTrue(entity.isChunked());
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assertTrue(entity.isStreaming());
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assertTrue(entity.getContentLength() == -1);
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}
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}
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