twitter4j.media.AbstractImageUploadImpl Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of twitter4j-media-support Show documentation
Twitter4J optional component adds multimedia support
There is a newer version: 4.0.6
Show newest version
/*
 * Copyright 2007 Yusuke Yamamoto
 *
 * 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 twitter4j.media;

import twitter4j.TwitterException;
import twitter4j.auth.OAuthAuthorization;
import twitter4j.conf.Configuration;
import twitter4j.internal.http.HttpClientWrapper;
import twitter4j.internal.http.HttpParameter;
import twitter4j.internal.http.HttpResponse;
import twitter4j.internal.logging.Logger;

import java.io.File;
import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * @author Rémy Rakic - remy.rakic at gmail.com
 * @author Takao Nakaguchi - takao.nakaguchi at gmail.com
 * @author withgod - noname at withgod.jp
 * @since Twitter4J 2.1.8
 */
abstract class AbstractImageUploadImpl implements ImageUpload {
    public static final String TWITTER_VERIFY_CREDENTIALS_JSON = "https://api.twitter.com/1/account/verify_credentials.json";
    public static final String TWITTER_VERIFY_CREDENTIALS_XML = "https://api.twitter.com/1/account/verify_credentials.xml";

    private HttpClientWrapper client;

    protected Configuration conf = null;
    protected String apiKey = null;
    protected OAuthAuthorization oauth = null;
    protected String uploadUrl = null;
    protected HttpParameter[] postParameter = null;
    protected HttpParameter[] appendParameter = null;
    protected HttpParameter image = null;
    protected HttpParameter message = null;
    protected Map headers = new HashMap();
    protected HttpResponse httpResponse = null;
    protected static final Logger logger = Logger.getLogger(AbstractImageUploadImpl.class);

    AbstractImageUploadImpl(Configuration conf, OAuthAuthorization oauth) {
        this.oauth = oauth;
        this.conf = conf;
        client = new HttpClientWrapper(conf);
    }

    public AbstractImageUploadImpl(Configuration conf, String apiKey, OAuthAuthorization oauth) {
        this(conf, oauth);
        this.apiKey = apiKey;
    }

    public String upload(String imageFileName, InputStream imageBody) throws TwitterException {
        this.image = new HttpParameter("media", imageFileName, imageBody);
        return upload();
    }

    public String upload(String imageFileName, InputStream imageBody, String message) throws TwitterException {
        this.image = new HttpParameter("media", imageFileName, imageBody);
        this.message = new HttpParameter("message", message);
        return upload();
    }

    public String upload(File file, String message) throws TwitterException {
        this.image = new HttpParameter("media", file);
        this.message = new HttpParameter("message", message);
        return upload();
    }

    public String upload(File file) throws TwitterException {
        this.image = new HttpParameter("media", file);
        return upload();
    }

    public String upload() throws TwitterException {
        if (conf.getMediaProviderParameters() != null) {
            Set set = conf.getMediaProviderParameters().keySet();
            HttpParameter[] params = new HttpParameter[set.size()];
            int pos = 0;
            for (Object k : set) {
                String v = conf.getMediaProviderParameters().getProperty((String) k);
                params[pos] = new HttpParameter((String) k, v);
                pos++;
            }
            this.appendParameter = params;
        }
        preUpload();
        if (this.postParameter == null) {
            throw new AssertionError("Incomplete implementation. postParameter is not set.");
        }
        if (this.uploadUrl == null) {
            throw new AssertionError("Incomplete implementation. uploadUrl is not set.");
        }
        if (conf.getMediaProviderParameters() != null && this.appendParameter.length > 0) {
            this.postParameter = appendHttpParameters(this.postParameter, this.appendParameter);
        }

        httpResponse = client.post(uploadUrl, postParameter, headers);

        String mediaUrl = postUpload();
        logger.debug("uploaded url [" + mediaUrl + "]");

        return mediaUrl;
    }

    protected abstract void preUpload() throws TwitterException;

    protected abstract String postUpload() throws TwitterException;

    protected HttpParameter[] appendHttpParameters(HttpParameter[] src, HttpParameter[] dst) {
        int srcLen = src.length;
        int dstLen = dst.length;
        HttpParameter[] ret = new HttpParameter[srcLen + dstLen];
        System.arraycopy(src, 0, ret, 0, srcLen);
        System.arraycopy(dst, 0, ret, srcLen, dstLen);
        return ret;
    }

    protected String generateVerifyCredentialsAuthorizationHeader(String verifyCredentialsUrl) {
        List oauthSignatureParams = oauth.generateOAuthSignatureHttpParams("GET", verifyCredentialsUrl);
        return "OAuth realm=\"http://api.twitter.com/\"," + OAuthAuthorization.encodeParameters(oauthSignatureParams, ",", true);
    }

    protected String generateVerifyCredentialsAuthorizationURL(String verifyCredentialsUrl) {
        List oauthSignatureParams = oauth.generateOAuthSignatureHttpParams("GET", verifyCredentialsUrl);
        return verifyCredentialsUrl + "?" + OAuthAuthorization.encodeParameters(oauthSignatureParams);
    }
}