package com.dji.sample.component.oss.service.impl;
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import com.aliyun.oss.OSS;
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import com.aliyun.oss.OSSClientBuilder;
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import com.aliyun.oss.OSSException;
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import com.aliyun.oss.model.OSSObject;
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import com.aliyuncs.DefaultAcsClient;
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import com.aliyuncs.IAcsClient;
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import com.aliyuncs.exceptions.ClientException;
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import com.aliyuncs.profile.DefaultProfile;
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import com.aliyuncs.sts.model.v20150401.AssumeRoleRequest;
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import com.aliyuncs.sts.model.v20150401.AssumeRoleResponse;
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import com.dji.sample.component.oss.model.OssConfiguration;
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import com.dji.sample.component.oss.model.enums.OssTypeEnum;
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import com.dji.sample.component.oss.service.IOssService;
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import com.dji.sample.media.model.CredentialsDTO;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.Date;
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/**
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* @author sean
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* @version 0.3
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* @date 2021/12/23
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*/
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@Service
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@Slf4j
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public class AliyunOssServiceImpl implements IOssService {
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@Autowired
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public OssConfiguration configuration;
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@Override
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public String getOssType() {
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return OssTypeEnum.ALIYUN.getType();
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}
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@Override
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public CredentialsDTO getCredentials() {
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try {
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DefaultProfile profile = DefaultProfile.getProfile(
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configuration.getRegion(), configuration.getAccessKey(), configuration.getSecretKey());
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IAcsClient client = new DefaultAcsClient(profile);
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AssumeRoleRequest request = new AssumeRoleRequest();
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request.setDurationSeconds(configuration.getExpire());
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request.setRoleArn(configuration.getRoleArn());
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request.setRoleSessionName(configuration.getRoleSessionName());
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AssumeRoleResponse response = client.getAcsResponse(request);
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return new CredentialsDTO(response.getCredentials(), configuration.getExpire());
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} catch (ClientException e) {
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log.debug("Failed to obtain sts.");
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e.printStackTrace();
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}
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return null;
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}
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@Override
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public URL getObjectUrl(String bucket, String objectKey) {
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if (!StringUtils.hasText(bucket) || !StringUtils.hasText(objectKey)) {
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return null;
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}
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OSS ossClient = this.createClient();
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// First check if the object can be fetched.
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boolean isExist = ossClient.doesObjectExist(bucket, objectKey);
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if (!isExist) {
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throw new OSSException("The object does not exist.");
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}
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return ossClient.generatePresignedUrl(bucket, objectKey,
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new Date(System.currentTimeMillis() + configuration.getExpire() * 1000));
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}
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@Override
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public Boolean deleteObject(String bucket, String objectKey) {
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OSS ossClient = this.createClient();
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if (!ossClient.doesObjectExist(bucket, objectKey)) {
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ossClient.shutdown();
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return true;
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}
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ossClient.deleteObject(bucket, objectKey);
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ossClient.shutdown();
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return true;
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}
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@Override
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public byte[] getObject(String bucket, String objectKey) {
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OSS ossClient = this.createClient();
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OSSObject object = ossClient.getObject(bucket, objectKey);
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try (InputStream stream = object.getObjectContent()) {
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return stream.readAllBytes();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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ossClient.shutdown();
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}
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return new byte[0];
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}
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private OSS createClient() {
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return new OSSClientBuilder()
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.build(configuration.getEndpoint(), configuration.getAccessKey(), configuration.getSecretKey());
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}
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}
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