public virtual async Task <OssObject> GetObjectAsync(GetOssObjectRequest request)
{
var ossClient = await CreateClientAsync();
if (!BucketExists(ossClient, request.Bucket))
{
throw new BusinessException(code: OssManagementErrorCodes.ContainerNotFound);
// throw new ContainerNotFoundException($"Can't not found container {request.Bucket} in aliyun blob storing");
}
var objectPath = GetBasePath(request.Path);
var objectName = objectPath.IsNullOrWhiteSpace()
? request.Object
: objectPath + request.Object;
if (!ObjectExists(ossClient, request.Bucket, objectName))
{
throw new BusinessException(code: OssManagementErrorCodes.ObjectNotFound);
// throw new ContainerNotFoundException($"Can't not found object {objectName} in container {request.Bucket} with aliyun blob storing");
}
var aliyunOssObjectRequest = new GetObjectRequest(request.Bucket, objectName, request.Process);
var aliyunOssObject = ossClient.GetObject(aliyunOssObjectRequest);
var ossObject = new OssObject(
!objectPath.IsNullOrWhiteSpace()
? aliyunOssObject.Key.Replace(objectPath, "")
: aliyunOssObject.Key,
request.Path,
aliyunOssObject.Metadata.LastModified,
aliyunOssObject.Metadata.ContentLength,
aliyunOssObject.Metadata.LastModified,
aliyunOssObject.Metadata.UserMetadata,
aliyunOssObject.Key.EndsWith("/"))
{
FullName = aliyunOssObject.Key
};
if (aliyunOssObject.IsSetResponseStream())
{
var memoryStream = new MemoryStream();
await aliyunOssObject.Content.CopyToAsync(memoryStream);
memoryStream.Seek(0, SeekOrigin.Begin);
ossObject.SetContent(memoryStream);
}
return(ossObject);
}
public virtual async Task <OssObject> CreateObjectAsync(CreateOssObjectRequest request)
{
var ossClient = await CreateClientAsync();
var objectPath = GetBasePath(request.Path);
var objectName = objectPath.IsNullOrWhiteSpace()
? request.Object
: objectPath + request.Object;
if (!request.Overwrite && ObjectExists(ossClient, request.Bucket, objectName))
{
throw new BusinessException(code: OssManagementErrorCodes.ObjectAlreadyExists);
}
// 当一个对象名称是以 / 结尾时，不论该对象是否存有数据，都以目录的形式存在
// 详情见:https://help.aliyun.com/document_detail/31910.html
if (objectName.EndsWith("/") &&
request.Content.IsNullOrEmpty())
{
var emptyStream = new MemoryStream();
var emptyData = System.Text.Encoding.UTF8.GetBytes("");
await emptyStream.WriteAsync(emptyData, 0, emptyData.Length);
request.SetContent(emptyStream);
}
// 没有bucket则创建
if (!BucketExists(ossClient, request.Bucket))
{
ossClient.CreateBucket(request.Bucket);
}
var aliyunObjectRequest = new PutObjectRequest(request.Bucket, objectName, request.Content)
{
Metadata = new ObjectMetadata()
};
if (request.ExpirationTime.HasValue)
{
aliyunObjectRequest.Metadata.ExpirationTime = DateTime.Now.Add(request.ExpirationTime.Value);
}
var aliyunObject = ossClient.PutObject(aliyunObjectRequest);
var ossObject = new OssObject(
!objectPath.IsNullOrWhiteSpace()
? objectName.Replace(objectPath, "")
: objectName,
objectPath,
DateTime.Now,
aliyunObject.ContentLength,
DateTime.Now,
aliyunObject.ResponseMetadata,
objectName.EndsWith("/") // 名称结尾是 / 符号的则为目录：https://help.aliyun.com/document_detail/31910.html
)
{
FullName = objectName
};
if (!Equals(request.Content, Stream.Null))
{
request.Content.Seek(0, SeekOrigin.Begin);
ossObject.SetContent(request.Content);
}
return(ossObject);
}
public virtual async Task <OssObject> GetObjectAsync(GetOssObjectRequest request)
{
var objectPath = !request.Path.IsNullOrWhiteSpace()
? request.Path.EnsureEndsWith('/')
: "";
var objectName = objectPath.IsNullOrWhiteSpace()
? request.Object
: objectPath + request.Object;
var filePath = CalculateFilePath(request.Bucket, objectName);
if (!File.Exists(filePath))
{
if (!Directory.Exists(filePath))
{
throw new BusinessException(code: OssManagementErrorCodes.ObjectNotFound);
// throw new ContainerNotFoundException($"Can't not found object {objectName} in container {request.Bucket} with file system");
}
var directoryInfo = new DirectoryInfo(filePath);
var ossObject = new OssObject(
directoryInfo.Name.EnsureEndsWith('/'),
objectPath,
directoryInfo.CreationTime,
0L,
directoryInfo.LastWriteTime,
new Dictionary <string, string>
{
{ "LastAccessTime", directoryInfo.LastAccessTime.ToString("yyyy-MM-dd HH:mm:ss") }
},
true)
{
FullName = directoryInfo.FullName.Replace(Environment.ContentRootPath, "")
};
return(ossObject);
}
else
{
var fileInfo = new FileInfo(filePath);
var ossObject = new OssObject(
fileInfo.Name,
objectPath,
fileInfo.CreationTime,
fileInfo.Length,
fileInfo.LastWriteTime,
new Dictionary <string, string>
{
{ "IsReadOnly", fileInfo.IsReadOnly.ToString() },
{ "LastAccessTime", fileInfo.LastAccessTime.ToString("yyyy-MM-dd HH:mm:ss") }
})
{
FullName = fileInfo.FullName.Replace(Environment.ContentRootPath, "")
};
using (var fileStream = File.OpenRead(filePath))
{
var memoryStream = new MemoryStream();
await fileStream.CopyToAsync(memoryStream);
ossObject.SetContent(memoryStream);
if (!request.Process.IsNullOrWhiteSpace())
{
using var serviceScope = ServiceProvider.CreateScope();
var context = new FileSystemOssObjectContext(request.Process, ossObject, serviceScope.ServiceProvider);
foreach (var processer in Options.Processers)
{
await processer.ProcessAsync(context);
if (context.Handled)
{
ossObject.SetContent(context.Content);
break;
}
}
}
}
return(ossObject);
}
}
public virtual async Task <OssObject> CreateObjectAsync(CreateOssObjectRequest request)
{
var objectPath = !request.Path.IsNullOrWhiteSpace()
? request.Path.EnsureEndsWith('/')
: "";
var objectName = objectPath.IsNullOrWhiteSpace()
? request.Object
: objectPath + request.Object;
var filePath = CalculateFilePath(request.Bucket, objectName);
if (!request.Content.IsNullOrEmpty())
{
ThrowOfPathHasTooLong(filePath);
FileMode fileMode = request.Overwrite ? FileMode.Create : FileMode.CreateNew;
if (!request.Overwrite && File.Exists(filePath))
{
throw new BusinessException(code: OssManagementErrorCodes.ObjectAlreadyExists);
// throw new OssObjectAlreadyExistsException($"Can't not put object {objectName} in container {request.Bucket}, Because a file with the same name already exists in the directory!");
}
DirectoryHelper.CreateIfNotExists(Path.GetDirectoryName(filePath));
using (var fileStream = File.Open(filePath, fileMode, FileAccess.Write))
{
await request.Content.CopyToAsync(fileStream);
await fileStream.FlushAsync();
}
var fileInfo = new FileInfo(filePath);
var ossObject = new OssObject(
fileInfo.Name,
objectPath,
fileInfo.CreationTime,
fileInfo.Length,
fileInfo.LastWriteTime,
new Dictionary <string, string>
{
{ "IsReadOnly", fileInfo.IsReadOnly.ToString() },
{ "LastAccessTime", fileInfo.LastAccessTime.ToString("yyyy-MM-dd HH:mm:ss") }
})
{
FullName = fileInfo.FullName.Replace(Environment.ContentRootPath, "")
};
ossObject.SetContent(request.Content);
return(ossObject);
}
else
{
ThrowOfPathHasTooLong(filePath);
if (Directory.Exists(filePath))
{
throw new BusinessException(code: OssManagementErrorCodes.ObjectAlreadyExists);
// throw new OssObjectAlreadyExistsException($"Can't not put object {objectName} in container {request.Bucket}, Because a file with the same name already exists in the directory!");
}
Directory.CreateDirectory(filePath);
var directoryInfo = new DirectoryInfo(filePath);
var ossObject = new OssObject(
directoryInfo.Name.EnsureEndsWith('/'),
objectPath,
directoryInfo.CreationTime,
0L,
directoryInfo.LastWriteTime,
new Dictionary <string, string>
{
{ "LastAccessTime", directoryInfo.LastAccessTime.ToString("yyyy-MM-dd HH:mm:ss") }
},
true)
{
FullName = directoryInfo.FullName.Replace(Environment.ContentRootPath, "")
};
ossObject.SetContent(request.Content);
return(ossObject);
}
}