public Task <string> GetBlobUrl(string containerName, string blobName)
{
var preSignatureStruct = new PreSignatureStruct();
preSignatureStruct.appid = _tcConfig.AppId; //腾讯云账号 APPID
preSignatureStruct.region = _tcConfig.Region; //存储桶地域
preSignatureStruct.bucket = _tcConfig.BucketName; //存储桶
preSignatureStruct.key = $"{containerName}/{blobName}"; //对象键
preSignatureStruct.httpMethod = "PUT"; //HTTP 请求方法
preSignatureStruct.isHttps = true; //生成 HTTPS 请求 URL
preSignatureStruct.signDurationSecond = 600; //请求签名时间为 600s
preSignatureStruct.headers = null; //签名中需要校验的 header
preSignatureStruct.queryParameters = null; //签名中需要校验的 URL 中请求参数
var url = _cosXmlServer.GenerateSignURL(preSignatureStruct);
return(Task.FromResult(url));
}
//临时密钥预签名请求示例-下载
public string DownGetUrl()
{
try
{
CosXmlConfig config = new CosXmlConfig.Builder()
.SetConnectionTimeoutMs(60000) //设置连接超时时间，单位 毫秒 ，默认 45000ms
.SetReadWriteTimeoutMs(40000) //设置读写超时时间，单位 毫秒 ，默认 45000ms
.IsHttps(true) //设置默认 https 请求
.SetAppid(AppID) //设置腾讯云账户的账户标识 APPID
.SetRegion(AppTong) //设置一个默认的存储桶地域
.SetDebugLog(true) //显示日志
.Build(); //创建 CosXmlConfig 对象
string secretId = SecretId; //"云 API 密钥 SecretId";
string secretKey = SecretKey; //"云 API 密钥 SecretKey";
long durationSecond = 600; //secretKey 有效时长,单位为 秒
QCloudCredentialProvider cosCredentialProvider = new DefaultQCloudCredentialProvider(secretId, secretKey, durationSecond);
CosXmlServer cosXml = new CosXmlServer(config, cosCredentialProvider);
PreSignatureStruct preSignatureStruct = new PreSignatureStruct();
preSignatureStruct.appid = AppID; //腾讯云账号 appid
preSignatureStruct.region = AppTong; //存储桶地域
preSignatureStruct.bucket = Cct; //存储桶
preSignatureStruct.key = Dxj; //对象键
preSignatureStruct.httpMethod = "GET"; //http 请求方法
preSignatureStruct.isHttps = true; //生成 https 请求URL
preSignatureStruct.signDurationSecond = 600; //请求签名时间为 600s
preSignatureStruct.headers = null; //签名中需要校验的header
preSignatureStruct.queryParameters = null; //签名中需要校验的URL中请求参数
return(cosXml.GenerateSignURL(preSignatureStruct)); //载请求预签名 URL (使用永久密钥方式计算的签名 URL )
#region 临时密钥下载
////使用临时密钥初始化 CosXml
//CosXmlConfig config = new CosXmlConfig.Builder()
//.SetConnectionTimeoutMs(60000) //设置连接超时时间，单位 毫秒 ，默认 45000ms
//.SetReadWriteTimeoutMs(40000) //设置读写超时时间，单位 毫秒 ，默认 45000ms
//.IsHttps(true) //设置默认 https 请求
//.SetAppid(AppID) //设置腾讯云账户的账户标识 APPID
//.SetRegion(AppTong) //设置一个默认的存储桶地域
//.SetDebugLog(true) //显示日志
//.Build(); //创建 CosXmlConfig 对象
//string tmpSecretId = SecretId; //"临时密钥 SecretId";
//string tmpSecretKey = SecretKey; //"临时密钥 SecretKey";
//string tmpToken = Token; //"临时密钥 token";
//long tmpExpireTime = ConvertDateTimeInt(DateTime.Now);//临时密钥有效截止时间
//QCloudCredentialProvider cosCredentialProvider = new DefaultSessionQCloudCredentialProvider(tmpSecretId, tmpSecretKey, tmpExpireTime, tmpToken);
//CosXmlServer cosXml = new CosXmlServer(config, cosCredentialProvider);
//PreSignatureStruct preSignatureStruct = new PreSignatureStruct();
//preSignatureStruct.appid = AppID;//腾讯云账号 appid
//preSignatureStruct.region = AppTong; //存储桶地域
//preSignatureStruct.bucket = Cct; //存储桶
//preSignatureStruct.key = Dxj; //对象键
//preSignatureStruct.httpMethod = "GET"; //http 请求方法
//preSignatureStruct.isHttps = true; //生成 https 请求URL
//preSignatureStruct.signDurationSecond = 600; //请求签名时间为 600s
//preSignatureStruct.headers = null;//签名中需要校验的header
//preSignatureStruct.queryParameters = null; //签名中需要校验的URL中请求参数
//return cosXml.GenerateSignURL(preSignatureStruct); //载请求预签名 URL (使用临时密钥方式计算的签名 URL )
#endregion 临时密钥下载
}
catch (Exception)
{
return("");
}
}