package com.easemob.server.example.httpclient.apidemo;
import java.io.File;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import com.easemob.server.example.httpclient.vo.ClientSecretCredential;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.easemob.server.example.comm.Constants;
import com.easemob.server.example.comm.Roles;
import com.easemob.server.example.httpclient.utils.HTTPClientUtils;
import com.easemob.server.example.httpclient.vo.Credential;
import com.easemob.server.example.httpclient.vo.EndPoints;
import com.fasterxml.jackson.databind.node.JsonNodeFactory;
import com.fasterxml.jackson.databind.node.ObjectNode;
/**
* REST API Demo : 图片语音文件上传、下载 HttpClient4.3实现
*
* Doc URL: http://www.easemob.com/docs/rest/files/
*
* @author Lynch 2014-09-15
*
*/
public class EasemobFiles {
private static final Logger LOGGER = LoggerFactory.getLogger(EasemobFiles.class);
private static final String APPKEY = Constants.APPKEY;
private static final JsonNodeFactory factory = new JsonNodeFactory(false);
// 通过app的client_id和client_secret来获取app管理员token
private static Credential credential = new ClientSecretCredential(Constants.APP_CLIENT_ID,
Constants.APP_CLIENT_SECRET, Roles.USER_ROLE_APPADMIN);
public static void main(String[] args) {
/**
* 上传图片文件
* curl示例
* curl --verbose --header "Authorization: Bearer {token}" --header "restrict-access:true" --form file=@/Users/stliu/a.jpg
* https://a1.easemob.com/easemob-playground/test1/chatfiles
*/
File uploadImgFile = new File("/home/lynch/Pictures/24849.jpg");
ObjectNode imgDataNode = mediaUpload(uploadImgFile);
if (null != imgDataNode) {
LOGGER.info("上传图片文件: " + imgDataNode.toString());
}
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
/**
* 下载图片文件
* curl示例
* curl -O -H "share-secret: " --header "Authorization: Bearer {token}" -H "Accept: application/octet-stream"
* http://a1.easemob.com/easemob-playground/test1/chatfiles/0c0f5f3a-e66b-11e3-8863-f1c202c2b3ae
*/
String imgFileUUID = imgDataNode.path("entities").get(0).path("uuid").asText();
String shareSecret = imgDataNode.path("entities").get(0).path("share-secret").asText();
File downloadedImgFileLocalPath = new File(uploadImgFile.getPath().substring(0, uploadImgFile.getPath().lastIndexOf(".")) + "-1.jpg");
boolean isThumbnail = false;
ObjectNode downloadImgDataNode = mediaDownload(imgFileUUID, shareSecret, downloadedImgFileLocalPath, isThumbnail);
if (null != downloadImgDataNode) {
LOGGER.info("下载图片文件: " + downloadImgDataNode.toString());
}
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
/**
* 下载缩略图
* curl示例
* curl -O -H "thumbnail: true" -H "share-secret: {secret}" -H "Authorization: Bearer {token}" -H "Accept: application/octet-stream"
* http://a1.easemob.com/easemob-playground/test1/chatfiles/0c0f5f3a-e66b-11e3-8863-f1c202c2b3ae
*/
File downloadedLocalPathThumnailImg = new File(uploadImgFile.getPath().substring(0, uploadImgFile.getPath().lastIndexOf(".")) + "-2.jpg");
isThumbnail = true;
ObjectNode downloadThumnailImgDataNode = mediaDownload(imgFileUUID, shareSecret, downloadedLocalPathThumnailImg, isThumbnail);
if (null != downloadThumnailImgDataNode) {
LOGGER.info("下载缩略图: " + downloadThumnailImgDataNode.toString());
}
/**
* 上传语音文件
* curl示例
* curl --verbose --header "Authorization: Bearer {token}" --header "restrict-access:true" --form file=@/Users/stliu/music.MP3
* https://a1.easemob.com/easemob-playground/test1/chatfiles
*/
File uploadAudioFile = new File("/home/lynch/Music/music.MP3");
ObjectNode audioDataNode = mediaUpload(uploadAudioFile);
if (null != audioDataNode) {
LOGGER.info("上传语音文件: " + audioDataNode.toString());
}
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
/**
* 下载语音文件
* curl示例
* curl -O -H "share-secret: {secret}" --header "Authorization: Bearer {token}"
* -H "Accept: application/octet-stream" http://a1.easemob.com/easemob-playground/test1/chatfiles/0c0f5f3a-e66b-11e3-8863-f1c202c2b3ae
*/
String audioFileUUID = audioDataNode.path("entities").get(0).path("uuid").asText();
String audioFileShareSecret = audioDataNode.path("entities").get(0).path("share-secret").asText();
File audioFileLocalPath = new File(uploadAudioFile.getPath().substring(0, uploadAudioFile.getPath().lastIndexOf(".")) + "-1.MP3");
ObjectNode downloadAudioDataNode = mediaDownload(audioFileUUID, audioFileShareSecret, audioFileLocalPath, null);
if (null != downloadAudioDataNode) {
LOGGER.info("下载语音文件: " + downloadAudioDataNode.toString());
}
}
/**
* 图片/语音文件上传
*
* @param uploadFile
*
*/
public static ObjectNode mediaUpload(File uploadFile) {
ObjectNode objectNode = factory.objectNode();
if (!uploadFile.exists()) {
LOGGER.error("file: " + uploadFile.toString() + " is not exist!");
objectNode.put("message", "File or directory not found");
return objectNode;
}
if (!HTTPClientUtils.match("^(?!-)[0-9a-zA-Z\\-]+#[0-9a-zA-Z]+", APPKEY)) {
LOGGER.error("Bad format of Appkey: " + APPKEY);
objectNode.put("message", "Bad format of Appkey");
return objectNode;
}
try {
List<NameValuePair> headers = new ArrayList<NameValuePair>();
headers.add(new BasicNameValuePair("restrict-access", "true"));
objectNode = HTTPClientUtils.uploadFile(EndPoints.CHATFILES_URL, uploadFile, credential, headers);
} catch (Exception e) {
e.printStackTrace();
}
return objectNode;
}
/**
* 图片语音文件下载
*
*
* @param fileUUID
* 文件在DB的UUID
* @param shareSecret
* 文件在DB中保存的shareSecret
* @param localPath
* 下载后文件存放地址
* @param isThumbnail
* 是否下载缩略图 true:缩略图 false:非缩略图
* @return
*/
public static ObjectNode mediaDownload(String fileUUID, String shareSecret, File localPath, Boolean isThumbnail) {
ObjectNode objectNode = factory.objectNode();
File downLoadedFile = null;
if (!HTTPClientUtils.match("^(?!-)[0-9a-zA-Z\\-]+#[0-9a-zA-Z]+", APPKEY)) {
LOGGER.error("Bad format of Appkey: " + APPKEY);
objectNode.put("message", "Bad format of Appkey");
return objectNode;
}
try {
List<NameValuePair> headers = new ArrayList<NameValuePair>();
if (!StringUtils.isEmpty(shareSecret)) {
headers.add(new BasicNameValuePair("share-secret", shareSecret));
}
headers.add(new BasicNameValuePair("Accept", "application/octet-stream"));
if (isThumbnail != null && isThumbnail) {
headers.add(new BasicNameValuePair("thumbnail", String.valueOf(isThumbnail)));
}
URL mediaDownloadUrl = HTTPClientUtils
.getURL(Constants.APPKEY.replace("#", "/") + "/chatfiles/" + fileUUID);
downLoadedFile = HTTPClientUtils.downLoadFile(mediaDownloadUrl, credential, headers, localPath);
} catch (Exception e) {
e.printStackTrace();
}
LOGGER.error("File download successfully，file path : " + downLoadedFile.getAbsolutePath() + ".");
objectNode.put("message", "File download successfully .");
return objectNode;
}
}