xtuaok.sharegyazo.HttpMultipartPostRequest.java Source code

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Here is the source code for xtuaok.sharegyazo.HttpMultipartPostRequest.java

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/*
 * Copyright (C) 2012 xtuaok (http://twitter.com/xtuaok)
 *
 * Licensed 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 xtuaok.sharegyazo;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;

import org.apache.http.NameValuePair;
import android.util.Log;

public class HttpMultipartPostRequest {
    private static final String LOG_TAG = HttpMultipartPostRequest.class.toString();
    private static final String BOUNDARY = "----BOUNDARYBOUNDARY----";

    private String mCgi;
    private List<NameValuePair> mPostData;
    private byte[] mByteData;

    public HttpMultipartPostRequest(String cgi, List<NameValuePair> postData, byte[] byteData) {
        mCgi = cgi;
        mPostData = postData;
        mByteData = byteData;
    }

    public String send() {
        URLConnection conn = null;
        String res = null;
        try {
            conn = new URL(mCgi).openConnection();
            conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
            ((HttpURLConnection) conn).setRequestMethod("POST");
            conn.setDoOutput(true);
            conn.connect();

            OutputStream os = conn.getOutputStream();
            os.write(createBoundaryMessage("imagedata").getBytes());
            os.write(mByteData);
            String endBoundary = "\r\n--" + BOUNDARY + "--\r\n";
            os.write(endBoundary.getBytes());
            os.close();

            InputStream is = conn.getInputStream();
            res = convertToString(is);
        } catch (Exception e) {
            Log.d(LOG_TAG, e.getMessage() + "");
        } finally {
            if (conn != null) {
                ((HttpURLConnection) conn).disconnect();
            }
        }
        return res;
    }

    private String createBoundaryMessage(String fileName) {
        StringBuffer res = new StringBuffer("--").append(BOUNDARY).append("\r\n");
        for (NameValuePair nv : mPostData) {
            res.append("Content-Disposition: form-data; name=\"").append(nv.getName()).append("\"\r\n")
                    .append("\r\n").append(nv.getValue()).append("\r\n").append("--").append(BOUNDARY)
                    .append("\r\n");
        }
        res.append("Content-Disposition: form-data; name=\"").append(fileName).append("\"; filename=\"")
                .append(fileName).append("\"\r\n\r\n");
        return res.toString();
    }

    private String convertToString(InputStream stream) {
        InputStreamReader streamReader = null;
        BufferedReader bufferReader = null;
        try {
            streamReader = new InputStreamReader(stream, "UTF-8");
            bufferReader = new BufferedReader(streamReader);
            StringBuilder builder = new StringBuilder();
            for (String line = null; (line = bufferReader.readLine()) != null;) {
                builder.append(line).append("\n");
            }
            return builder.toString();
        } catch (UnsupportedEncodingException e) {
            Log.e(LOG_TAG, e.getMessage());
        } catch (IOException e) {
            Log.e(LOG_TAG, e.toString());
        } finally {
            try {
                stream.close();
                if (bufferReader != null) {
                    bufferReader.close();
                }
            } catch (IOException e) {
                // IOError
                Log.e(LOG_TAG, e.toString());
            }
        }
        return null;
    }
}