public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string filename = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var blob = _blobClient.GetContainerReference(containerName)
.GetBlockBlobReference(blobName);
var builder = new UriBuilder(blob.Uri);
var headers = new SharedAccessBlobHeaders();
var hasFilename = !string.IsNullOrEmpty(filename);
if (hasFilename || isDownload)
{
headers.ContentDisposition = "attachment" + (hasFilename ? "; filename=\"" + filename + "\"" : string.Empty);
}
if (!string.IsNullOrEmpty(contentType))
{
headers.ContentType = contentType;
}
builder.Query = blob.GetSharedAccessSignature(new SharedAccessBlobPolicy
{
Permissions = access.ToPermissions(),
SharedAccessStartTime = DateTimeOffset.UtcNow.AddMinutes(-5),
SharedAccessExpiryTime = expiry,
}, headers).TrimStart('?');
return builder.Uri.ToString();
}
public static SharedAccessBlobPermissions ToPermissions(this BlobUrlAccess security)
{
switch (security)
{
case BlobUrlAccess.Read:
return(SharedAccessBlobPermissions.Read);
case BlobUrlAccess.Write:
return(SharedAccessBlobPermissions.Create | SharedAccessBlobPermissions.Write);
case BlobUrlAccess.Delete:
return(SharedAccessBlobPermissions.Delete);
case BlobUrlAccess.All:
return(SharedAccessBlobPermissions.Create | SharedAccessBlobPermissions.Delete | SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Write);
default:
return(SharedAccessBlobPermissions.None);
}
}
public override async Task <string> GetTemporaryFileUrl(Uri baseUri, StoredFile storedFile,
StorageSettings configuration, DateTimeOffset expiry, bool isDownload,
BlobUrlAccess access = BlobUrlAccess.Read)
{
var localFileDescriptor = new TemporaryLocalFileDescriptor()
{
Expiry = expiry,
FileId = storedFile.Id,
IsDownload = isDownload
};
var name = Guid.NewGuid().ToString();
var fullPath = Path.Combine(_datadirs.Value.TempStorageDir, name);
if (!File.Exists(fullPath))
{
File.Create(fullPath).Dispose();
}
await File.WriteAllTextAsync(Path.Combine(_datadirs.Value.TempStorageDir, name), JsonConvert.SerializeObject(localFileDescriptor));
return(new Uri(baseUri, $"{LocalStorageDirectoryName}tmp/{name}{(isDownload ? "?download" : string.Empty)}").AbsoluteUri);
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry,
bool isDownload = false, string fileName = null, string contentType = null,
BlobUrlAccess access = BlobUrlAccess.Read)
{
var headers = new ResponseHeaderOverrides();
if (isDownload)
{
headers.ContentDisposition = "attachment;";
}
if (!string.IsNullOrEmpty(fileName))
{
headers.ContentDisposition += "filename=\"" + fileName + "\"";
}
if (!string.IsNullOrEmpty(contentType))
{
headers.ContentType = contentType;
}
var urlRequest = new GetPreSignedUrlRequest()
{
BucketName = _bucket,
Key = GenerateKeyName(containerName, blobName),
Expires = expiry.UtcDateTime,
ResponseHeaderOverrides = headers,
Verb = access == BlobUrlAccess.Read ? HttpVerb.GET : HttpVerb.PUT
};
try
{
return(_s3Client.GetPreSignedURL(urlRequest));
}
catch (AmazonS3Exception asex)
{
throw asex.ToStorageException();
}
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var headers = new ResponseHeaderOverrides();
ContentDispositionHeaderValue cdHeader;
if (isDownload)
{
cdHeader = new ContentDispositionHeaderValue("attachment");
}
else
{
cdHeader = new ContentDispositionHeaderValue("inline");
}
if (!string.IsNullOrEmpty(fileName))
{
cdHeader.FileNameStar = fileName;
}
headers.ContentDisposition = cdHeader.ToString();
if (!string.IsNullOrEmpty(contentType))
{
headers.ContentType = contentType;
}
var urlRequest = new GetPreSignedUrlRequest
{
BucketName = _bucket,
Key = GenerateKeyName(containerName, blobName),
Expires = expiry.UtcDateTime,
ResponseHeaderOverrides = headers,
Verb = access == BlobUrlAccess.Read ? HttpVerb.GET : HttpVerb.PUT
};
if (!string.IsNullOrEmpty(_serverSideEncryptionMethod))
{
urlRequest.ServerSideEncryptionMethod = _serverSideEncryptionMethod;
}
try
{
return(_s3Client.GetPreSignedURL(urlRequest));
}
catch (AmazonS3Exception asex)
{
throw asex.ToStorageException();
}
}
public override Task <string> GetTemporaryFileUrl(StoredFile storedFile, StorageSettings configuration, DateTimeOffset expiry, bool isDownload,
BlobUrlAccess access = BlobUrlAccess.Read)
{
return(GetFileUrl(storedFile, configuration));
}
/// <inheritdoc/>
public Task <string> GetBlobUrl(string containerName, string blobName, DateTime expiry, bool isDownload = false, string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
throw new NotImplementedException();
}
public override async Task <string> GetTemporaryFileUrl(StoredFile storedFile, StorageSettings configuration, DateTimeOffset expiry, bool isDownload,
BlobUrlAccess access = BlobUrlAccess.Read)
{
return($"{(await GetFileUrl(storedFile, configuration))}{(isDownload ? "?download" : string.Empty)}");
}
/// <summary>
/// 获取授权访问链接
/// </summary>
/// <param name="containerName">容器名称</param>
/// <param name="blobName">文件名称</param>
/// <param name="expiry">过期时间</param>
/// <param name="isDownload">是否允许下载</param>
/// <param name="fileName">文件名</param>
/// <param name="contentType">内容类型</param>
/// <param name="access">访问限制</param>
/// <returns></returns>
public Task <string> GetBlobUrl(string containerName, string blobName, DateTime expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var request = new GetPreSignedUrlRequest
{
BucketName = _tcConfig.BucketName,
Key = $"{containerName}/{blobName}",
Expires = expiry,
ContentType = contentType
};
var url = _amazonS3Client.GetPreSignedURL(request);
return(Task.FromResult(url));
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry,
bool isDownload = false, string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
return(Path.Combine(_basePath, containerName, blobName));
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string filename = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var blob = _blobClient.GetContainerReference(containerName)
.GetBlockBlobReference(blobName);
var builder = new UriBuilder(blob.Uri);
var headers = new SharedAccessBlobHeaders();
var hasFilename = !string.IsNullOrEmpty(filename);
if (hasFilename || isDownload)
{
headers.ContentDisposition = "attachment" + (hasFilename ? "; filename=\"" + filename + "\"" : string.Empty);
}
if (!string.IsNullOrEmpty(contentType))
{
headers.ContentType = contentType;
}
builder.Query = blob.GetSharedAccessSignature(new SharedAccessBlobPolicy
{
Permissions = access.ToPermissions(),
SharedAccessStartTime = DateTimeOffset.UtcNow.AddMinutes(-5),
SharedAccessExpiryTime = expiry,
}, headers).TrimStart('?');
return builder.Uri.ToString();
}
/// <summary>
/// 获取授权访问链接
/// </summary>
/// <param name="containerName">容器名称</param>
/// <param name="blobName">文件名称</param>
/// <param name="expiry">过期时间</param>
/// <param name="isDownload">是否允许下载</param>
/// <param name="fileName">文件名</param>
/// <param name="contentType">内容类型</param>
/// <param name="access">访问限制</param>
/// <returns></returns>
public Task <string> GetBlobUrl(string containerName, string blobName, DateTime expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
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 = (long)(expiry - DateTime.Now).TotalSeconds; //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));
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var headers = new ResponseHeaderOverrides();
if (isDownload)
{
headers.ContentDisposition = "attachment;";
}
if (!string.IsNullOrEmpty(fileName))
{
headers.ContentDisposition += "filename=\"" + fileName + "\"";
}
if (!string.IsNullOrEmpty(contentType))
{
headers.ContentType = contentType;
}
var urlRequest = new GetPreSignedUrlRequest()
{
BucketName = _bucket,
Key = GenerateKeyName(containerName, blobName),
Expires = expiry.UtcDateTime,
ResponseHeaderOverrides = headers,
Verb = access == BlobUrlAccess.Read ? HttpVerb.GET : HttpVerb.PUT
};
try
{
return _s3Client.GetPreSignedURL(urlRequest);
}
catch (AmazonS3Exception asex)
{
throw asex.ToStorageException();
}
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var blob = _blobClient.GetContainerReference(containerName)
.GetBlockBlobReference(blobName);
var builder = new UriBuilder(blob.Uri);
var headers = new SharedAccessBlobHeaders();
ContentDispositionHeaderValue cdHeader;
if (isDownload)
{
cdHeader = new ContentDispositionHeaderValue("attachment");
}
else
{
cdHeader = new ContentDispositionHeaderValue("inline");
}
if (!string.IsNullOrEmpty(fileName))
{
cdHeader.FileNameStar = fileName;
}
headers.ContentDisposition = cdHeader.ToString();
if (!string.IsNullOrEmpty(contentType))
{
headers.ContentType = contentType;
}
builder.Query = blob.GetSharedAccessSignature(new SharedAccessBlobPolicy
{
Permissions = access.ToPermissions(),
SharedAccessStartTime = DateTimeOffset.UtcNow.AddMinutes(-5),
SharedAccessExpiryTime = expiry,
}, headers).TrimStart('?');
return(builder.Uri.ToString());
}
// TODO: Currently google only support adding a content disposition when uploading
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var expiration = expiry.ToUnixTimeSeconds();
//var disp = fileName != null ? "content-disposition:attachment;filename=\"" + fileName +"\"" : string.Empty;
var verb = access == BlobUrlAccess.Read ? "GET" : "PUT";
var urlSignature = SignString($"{verb}\n\n{contentType}\n{expiration}\n/{_bucket}/{containerName}/{blobName}");
return($"https://storage.googleapis.com/{_bucket}/{containerName}/{blobName}?GoogleAccessId={_serviceEmail}&Expires={expiration}&Signature={WebUtility.UrlEncode(urlSignature)}");
}
/// <inheritdoc/>
public async Task <string> GetBlobUrl(string containerName, string blobName, DateTime expiry,
bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
try
{
var httpMethod = SignHttpMethod.Get;
return(await Task.Run(() =>
{
switch (access)
{
case BlobUrlAccess.Read:
httpMethod = SignHttpMethod.Get;
break;
case BlobUrlAccess.All:
case BlobUrlAccess.Write:
httpMethod = SignHttpMethod.Put;
break;
case BlobUrlAccess.Delete:
httpMethod = SignHttpMethod.Delete;
break;
default:
throw new StorageException(StorageErrorCode.InvalidAccess.ToStorageError(),
new Exception("无效的访问凭据"));
}
var req = new GeneratePresignedUriRequest(containerName, blobName, httpMethod)
{
Expiration = expiry
};
var url = _ossClient.GeneratePresignedUri(req);
return url.AbsoluteUri;
}));
}
catch (Exception ex)
{
throw new StorageException(StorageErrorCode.PostError.ToStorageError(),
new Exception(ex.ToString()));
}
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string fileName = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
if (_urlSigner == null)
{
throw new StorageException(StorageErrorCode.InvalidCredentials, "URL Signer requires ServiceAccountCredentials");
}
var headers = new Dictionary <string, IEnumerable <string> >();
if (!string.IsNullOrEmpty(fileName))
{
var header = $"filename=\"{fileName}\"";
headers["Content-Disposition"] = new[] { isDownload ? "attachment; " + header : header };
}
else if (isDownload)
{
headers["Content-Disposition"] = new[] { "attachment;" };
}
if (!string.IsNullOrEmpty(contentType))
{
headers["Content-Type"] = new[] { contentType };
}
return(_urlSigner.Sign(
_bucket,
ObjectName(containerName, blobName),
expiry,
access == BlobUrlAccess.Read ? HttpMethod.Get : HttpMethod.Put,
headers));
}
public virtual async Task <string> GetTemporaryFileUrl(StoredFile storedFile, StorageSettings configuration,
DateTimeOffset expiry, bool isDownload, BlobUrlAccess access = BlobUrlAccess.Read)
{
var providerConfiguration = GetProviderConfiguration(configuration);
var provider = await GetStorageProvider(providerConfiguration);
if (isDownload)
{
var descriptor =
await provider.GetBlobDescriptorAsync(providerConfiguration.ContainerName,
storedFile.StorageFileName);
return(provider.GetBlobSasUrl(providerConfiguration.ContainerName, storedFile.StorageFileName, expiry,
true, storedFile.FileName, descriptor.ContentType, access));
}
return(provider.GetBlobSasUrl(providerConfiguration.ContainerName, storedFile.StorageFileName, expiry,
false, null, null, access));
}
public string GetBlobSasUrl(string containerName, string blobName, DateTimeOffset expiry, bool isDownload = false,
string filename = null, string contentType = null, BlobUrlAccess access = BlobUrlAccess.Read)
{
var req = new GeneratePresignedUriRequest(containerName, blobName)
{
Expiration = expiry.DateTime
};
switch (access)
{
case BlobUrlAccess.None:
case BlobUrlAccess.Read:
req.Method = SignHttpMethod.Get;
break;
case BlobUrlAccess.Write:
req.Method = SignHttpMethod.Put;
break;
case BlobUrlAccess.Delete:
throw new NotSupportedException("BlobUrlAccess.Delete");
case BlobUrlAccess.All:
throw new NotSupportedException("BlobUrlAccess.All");
}
if (!string.IsNullOrWhiteSpace(contentType))
{
req.ContentType = contentType;
}
if (!string.IsNullOrWhiteSpace(filename))
{
req.ResponseHeaders.ContentDisposition = "inline;filename=" + filename;
}
var uri = _ossClient.GeneratePresignedUri(req);
return(uri.ToString());
}
