com.alta189.deskbin.services.image.ImgurService.java Source code

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Here is the source code for com.alta189.deskbin.services.image.ImgurService.java

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/*
 * This file is part of DeskBin.
 *
 * Copyright (c) 2012, alta189 <http://github.com/alta189/DeskBin/>
 * DeskBin is licensed under the GNU Lesser General Public License.
 *
 * DeskBin is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DeskBin 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.alta189.deskbin.services.image;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.Collection;
import java.util.List;

import javax.imageio.ImageIO;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONObject;

import com.alta189.deskbin.services.ServiceSnapshot;
import com.alta189.deskbin.util.KeyUtils;

public class ImgurService extends ImageService {
    private static final String NAME = "imgur";
    private static final String UPLOAD_URL = "http://api.imgur.com/2/upload.json";
    private final HttpClient client = new DefaultHttpClient();
    private final String apikey;

    public ImgurService() {
        this.apikey = KeyUtils.getKey("imgur-apikey");
    }

    public ImgurService(ServiceSnapshot snapshot) {
        this();
    }

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public ServiceSnapshot generateSnapshot() {
        return new ServiceSnapshot(getClass());
    }

    @Override
    public String upload(BufferedImage image) throws ImageServiceException {
        try {
            File file = File.createTempFile("screenshot-", ".png");
            ImageIO.write(image, "png", file);
            return upload(file);
        } catch (ImageServiceException e) {
            throw e;
        } catch (IOException e) {
            throw new ImageServiceException(e);
        } catch (Exception e) {
            throw new ImageServiceException(e);
        }
    }

    @Override
    public String upload(List<BufferedImage> images) throws ImageServiceException {
        StringBuilder result = new StringBuilder();
        for (BufferedImage image : images) {
            result.append(upload(image)).append(" ");
        }
        return result.toString();
    }

    @Override
    public String upload(File image) throws ImageServiceException {
        try {
            HttpPost post = new HttpPost(UPLOAD_URL);

            MultipartEntity entity = new MultipartEntity();
            entity.addPart("key", new StringBody(apikey, Charset.forName("UTF-8")));
            entity.addPart("type", new StringBody("file", Charset.forName("UTF-8")));
            FileBody fileBody = new FileBody(image);
            entity.addPart("image", fileBody);
            post.setEntity(entity);

            HttpResponse response = client.execute(post);
            if (response.getStatusLine().getStatusCode() != 200) {
                throw new ImageServiceException(
                        "Error accessing imgur. Status code: " + response.getStatusLine().getStatusCode());
            }
            String json = EntityUtils.toString(response.getEntity());
            JSONObject jsonObject = new JSONObject(json).getJSONObject("upload").getJSONObject("links");
            return jsonObject.getString("imgur_page");
        } catch (Exception e) {
            throw new ImageServiceException(e);
        }
    }

    @Override
    public String upload(Collection<File> images) throws ImageServiceException {
        StringBuilder result = new StringBuilder();
        for (File image : images) {
            result.append(upload(image)).append(" ");
        }
        return result.toString();
    }
}