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package edu.tsinghua.spice.Utilies;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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/**
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* Created by Denny C. Ng on 2/20/15.
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* Copyright (C) 2013 Surviving with Android (http://www.survivingwithandroid.com)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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public class SpiceHttpUtil {
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private String url;
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private HttpURLConnection con;
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private OutputStream os;
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private String delimiter = "--";
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private String boundary = "SwA"+Long.toString(System.currentTimeMillis())+"SwA";
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public SpiceHttpUtil(String url) {
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this.url = url;
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}
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public void connectForMultipart() throws Exception {
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con = (HttpURLConnection) ( new URL(url)).openConnection();
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con.setRequestMethod("POST");
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con.setDoInput(true);
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con.setDoOutput(true);
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con.setRequestProperty("Connection", "Keep-Alive");
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con.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
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con.connect();
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os = con.getOutputStream();
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}
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public void addFormPart(String paramName, String value) throws Exception {
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writeParamData(paramName, value);
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}
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public void addFilePart(String paramName, String fileName, byte[] data) throws Exception {
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os.write( (delimiter + boundary + "\r\n").getBytes());
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os.write( ("Content-Disposition: form-data; name=\"" + paramName + "\"; filename=\"" + fileName + "\"\r\n" ).getBytes());
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os.write( ("Content-Type: application/octet-stream\r\n" ).getBytes());
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os.write( ("Content-Transfer-Encoding: binary\r\n" ).getBytes());
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os.write("\r\n".getBytes());
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os.write(data);
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os.write("\r\n".getBytes());
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}
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public void finishMultipart() throws Exception {
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os.write( (delimiter + boundary + delimiter + "\r\n").getBytes());
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}
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public String getResponse() throws Exception {
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InputStream is = con.getInputStream();
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byte[] b1 = new byte[1024];
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StringBuffer buffer = new StringBuffer();
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while ( is.read(b1) != -1)
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buffer.append(new String(b1));
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con.disconnect();
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return buffer.toString();
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}
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private void writeParamData(String paramName, String value) throws Exception {
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os.write( (delimiter + boundary + "\r\n").getBytes());
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os.write( "Content-Type: text/plain\r\n".getBytes());
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os.write( ("Content-Disposition: form-data; name=\"" + paramName + "\"\r\n").getBytes());;
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os.write( ("\r\n" + value + "\r\n").getBytes());
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}
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}
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