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https://github.com/edgelesssys/constellation.git
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97dc15b1d1
Previously the timeout was not set in the client's constructor, thus the zero value was used. The client did not wait for invalidation. To prevent this in the future a warning is logged if wait is disabled. Co-authored-by: Daniel Weiße <dw@edgeless.systems>
121 lines
4.0 KiB
Go
121 lines
4.0 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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// package measurementsuploader is used to upload measurements (v2) JSON files (and signatures) to S3.
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package measurementsuploader
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/url"
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"time"
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s3manager "github.com/aws/aws-sdk-go-v2/feature/s3/manager"
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"github.com/aws/aws-sdk-go-v2/service/s3"
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s3types "github.com/aws/aws-sdk-go-v2/service/s3/types"
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"github.com/edgelesssys/constellation/v2/internal/api/versionsapi"
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"github.com/edgelesssys/constellation/v2/internal/attestation/measurements"
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"github.com/edgelesssys/constellation/v2/internal/constants"
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"github.com/edgelesssys/constellation/v2/internal/logger"
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"github.com/edgelesssys/constellation/v2/internal/staticupload"
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)
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// Uploader uploads image info to S3.
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type Uploader struct {
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uploadClient uploadClient
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uploadClientClose func(ctx context.Context) error
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// bucket is the name of the S3 bucket to use.
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bucket string
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log *logger.Logger
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}
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// New creates a new Uploader.
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func New(ctx context.Context, region, bucket, distributionID string, log *logger.Logger) (*Uploader, CloseFunc, error) {
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staticUploadClient, staticUploadClientClose, err := staticupload.New(ctx, staticupload.Config{
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Region: region,
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Bucket: bucket,
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DistributionID: distributionID,
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CacheInvalidationStrategy: staticupload.CacheInvalidateBatchOnFlush,
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CacheInvalidationWaitTimeout: 10 * time.Minute,
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}, log)
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if err != nil {
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return nil, nil, err
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}
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uploader := &Uploader{
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uploadClient: staticUploadClient,
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uploadClientClose: staticUploadClientClose,
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bucket: bucket,
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log: log,
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}
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uploaderClose := func(ctx context.Context) error {
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return uploader.Close(ctx)
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}
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return uploader, uploaderClose, nil
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}
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// Close closes the uploader.
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// It invalidates the CDN cache for all uploaded files.
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func (a *Uploader) Close(ctx context.Context) error {
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if a.uploadClientClose == nil {
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return nil
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}
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return a.uploadClientClose(ctx)
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}
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// Upload uploads the measurements v2 JSON file and its signature to S3.
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func (a *Uploader) Upload(ctx context.Context, rawMeasurement, signature io.ReadSeeker) (string, string, error) {
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// parse the measurements to get the ref, stream, and version
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var measurements measurements.ImageMeasurementsV2
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if err := json.NewDecoder(rawMeasurement).Decode(&measurements); err != nil {
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return "", "", err
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}
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if _, err := rawMeasurement.Seek(0, io.SeekStart); err != nil {
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return "", "", err
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}
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ver, err := versionsapi.NewVersion(measurements.Ref, measurements.Stream, measurements.Version, versionsapi.VersionKindImage)
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if err != nil {
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return "", "", fmt.Errorf("creating version: %w", err)
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}
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key, err := url.JoinPath(ver.ArtifactPath(versionsapi.APIV2), ver.Kind().String(), "measurements.json")
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if err != nil {
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return "", "", err
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}
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sigKey, err := url.JoinPath(ver.ArtifactPath(versionsapi.APIV2), ver.Kind().String(), "measurements.json.sig")
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if err != nil {
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return "", "", err
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}
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a.log.Debugf("Archiving image measurements to s3://%v/%v and s3://%v/%v", a.bucket, key, a.bucket, sigKey)
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if _, err = a.uploadClient.Upload(ctx, &s3.PutObjectInput{
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Bucket: &a.bucket,
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Key: &key,
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Body: rawMeasurement,
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ChecksumAlgorithm: s3types.ChecksumAlgorithmSha256,
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}); err != nil {
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return "", "", fmt.Errorf("uploading measurements: %w", err)
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}
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if _, err = a.uploadClient.Upload(ctx, &s3.PutObjectInput{
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Bucket: &a.bucket,
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Key: &sigKey,
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Body: signature,
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ChecksumAlgorithm: s3types.ChecksumAlgorithmSha256,
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}); err != nil {
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return "", "", fmt.Errorf("uploading measurements signature: %w", err)
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}
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return constants.CDNRepositoryURL + "/" + key, constants.CDNRepositoryURL + "/" + sigKey, nil
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}
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type uploadClient interface {
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Upload(ctx context.Context, input *s3.PutObjectInput, opts ...func(*s3manager.Uploader)) (*s3manager.UploadOutput, error)
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}
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// CloseFunc is a function that closes the client.
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type CloseFunc func(ctx context.Context) error
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