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This commit is contained in:
Aaron Po
2026-10-13 01:23:29 -04:00
committed by GitHub
parent dfe248ea5f
commit c0cb013f54
31 changed files with 812 additions and 78 deletions
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36
web/backend/Features/Features.PhotoUpload/Services/S3FileStorageProvider.cs
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@@ -13,11 +13,14 @@ public class S3FileStorageProvider : IFileStorageProvider, IDisposable
{
private readonly string _bucket;
private readonly IAmazonS3 _client;
private readonly IAmazonS3 _presignClient;
private readonly Protocol _presignProtocol;
/// <summary>
/// Initializes a new instance of the <see cref="S3FileStorageProvider" /> class, reading storage
/// configuration (<c>SEAWEEDFS_SERVICE_URL</c>, <c>SEAWEEDFS_ACCESS_KEY_ID</c>,
/// <c>SEAWEEDFS_SECRET_ACCESS_KEY</c>, <c>SEAWEEDFS_BUCKET</c>) from <paramref name="configuration" />.
/// <c>SEAWEEDFS_SECRET_ACCESS_KEY</c>, <c>SEAWEEDFS_BUCKET</c>, and the optional
/// <c>SEAWEEDFS_PUBLIC_URL</c>) from <paramref name="configuration" />.
/// </summary>
/// <exception cref="InvalidOperationException">
/// Thrown when any of the required configuration values is not set.
@@ -45,6 +48,31 @@ public class S3FileStorageProvider : IFileStorageProvider, IDisposable
AmazonS3Config config = new() { ServiceURL = serviceUrl, ForcePathStyle = true };
_client = new AmazonS3Client(accessKeyId, secretAccessKey, config);
// A presigned URL is signed over its host, so one signed against the container-internal
// endpoint is only usable from inside the network. Sign downloads against the public
// endpoint instead, so a browser can fetch the object.
string? configuredPublicUrl = configuration[ConfigurationKeys.SeaweedFsPublicUrl];
string publicUrl = string.IsNullOrWhiteSpace(configuredPublicUrl)
? serviceUrl
: configuredPublicUrl;
_presignClient =
publicUrl == serviceUrl
? _client
: new AmazonS3Client(
accessKeyId,
secretAccessKey,
new AmazonS3Config { ServiceURL = publicUrl, ForcePathStyle = true }
);
// GetPreSignedUrlRequest.Protocol defaults to HTTPS and ignores the ServiceURL scheme, so
// take the scheme from the endpoint the URL is signed against.
_presignProtocol =
Uri.TryCreate(publicUrl, UriKind.Absolute, out Uri? publicUri)
&& publicUri.Scheme == Uri.UriSchemeHttp
? Protocol.HTTP
: Protocol.HTTPS;
}
/// <inheritdoc/>
@@ -82,14 +110,18 @@ public class S3FileStorageProvider : IFileStorageProvider, IDisposable
BucketName = _bucket,
Key = key,
Expires = DateTime.UtcNow.Add(expiresIn),
Protocol = _presignProtocol,
};
return _client.GetPreSignedURL(request);
return _presignClient.GetPreSignedURL(request);
}
/// <inheritdoc/>
public void Dispose()
{
if (!ReferenceEquals(_presignClient, _client))
_presignClient.Dispose();
_client.Dispose();
GC.SuppressFinalize(this);
}