HTPPFileUploadConnection.java

/*
 * Kontalk Android client
 * Copyright (C) 2017 Kontalk Devteam <devteam@kontalk.org>

 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.kontalk.upload;

import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.TimeUnit;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;

import android.content.Context;
import android.net.Uri;

import okhttp3.Call;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.internal.Util;
import okio.BufferedSink;
import okio.Okio;
import okio.Source;

import org.kontalk.client.ClientHTTPConnection;
import org.kontalk.service.ProgressListener;
import org.kontalk.util.CountingRequestBody;
import org.kontalk.util.Preferences;


/**
 * Simple HTTP upload via PUT.
 *
 * @author Daniele Ricci
 * @author Andrea Cappelli
 */
public class HTPPFileUploadConnection implements UploadConnection {

    private final Context mContext;
    private final String mUrl;

    private HttpsURLConnection currentRequest;
    private OkHttpClient client;
    private Call call;
    private Request request;

    private final static int CONNECT_TIMEOUT = 15000;
    private final static int READ_TIMEOUT = 40000;
    /**
     * Minimum delay for progress notification updates in milliseconds.
     */
    private static final int PROGRESS_PUBLISH_DELAY = 1000;

    public HTPPFileUploadConnection(Context context, String url) {
        mContext = context;
        mUrl = url;
    }

    @Override
    public void abort() {
        try {
            //currentRequest.disconnect();
            call.cancel();
        }
        catch (Exception ignored) {
        }
    }

    @Override
    public String upload(final Uri uri, final long length, String mime, boolean encrypt, String[] to, final ProgressListener listener) throws IOException {
        try {

            OkHttpClient.Builder builder = new OkHttpClient.Builder();
            boolean acceptAnyCertificate = Preferences.getAcceptAnyCertificate(mContext);

            builder.sslSocketFactory(ClientHTTPConnection.setupSSLSocketFactory(mContext,
                null, null, acceptAnyCertificate));

            if (acceptAnyCertificate) {
                builder.hostnameVerifier(new HostnameVerifier() {
                    @Override
                    public boolean verify(String hostname, SSLSession session) {
                        return true;
                    }
                });
            }


            client = builder.connectTimeout(CONNECT_TIMEOUT, TimeUnit.MILLISECONDS)
                .readTimeout(READ_TIMEOUT, TimeUnit.MILLISECONDS)
                .build();

            final MediaType MEDIA_TYPE = MediaType
                .parse(mime != null ? mime : "application/octet-stream");

            RequestBody requestBody = new RequestBody() {

                @Override
                public long contentLength() throws IOException {
                    return length;
                }

                @Override
                public MediaType contentType() {
                    return MEDIA_TYPE;
                }

                @Override
                public void writeTo(BufferedSink sink) throws IOException {
                    InputStream inMessage = mContext.getContentResolver().openInputStream(uri);
                    Source source = null;
                    try {
                        source = Okio.source(inMessage);
                        sink.writeAll(source);
                    }
                    finally {
                        Util.closeQuietly(source);
                    }
                }
            };

            CountingRequestBody countingRequestBody = new CountingRequestBody(requestBody,
                new CountingRequestBody.Listener() {
                    @Override
                    public void onRequestProgress(long bytesWritten, long contentLength) {
                        listener.progress(HTPPFileUploadConnection.this, bytesWritten);
                    }
                });

            Request request = new Request.Builder()
                .url(mUrl)
                .method("PUT", countingRequestBody)
                .build();

            call = client.newCall(request);

            Response response = call.execute();

            if (response.code() != 200) {
                throw new IOException(response.code() + " " + response.message());
            }

            return null;
        }
        catch (Exception e) {
            throw innerException("upload error", e);
        }
    }

    private IOException innerException(String detail, Throwable cause) {
        return new IOException(detail, cause);
    }
    
}