Extract S3 code to S3FileStore

Re: #5

README.md

@@ -57,7 +57,7 @@ sqlc generate
 Mocks require [mockery](https://github.com/vektra/mockery) to be installed, and can be regenerated with:
 
 ```
-go generate
+go generate ./...
 ```
 
 ### Migrations

backend/cmd/clipper/main.go

@@ -6,18 +6,20 @@ import (
 	"time"
 
 	"git.netflux.io/rob/clipper/config"
+	"git.netflux.io/rob/clipper/filestore"
 	"git.netflux.io/rob/clipper/generated/store"
-	"git.netflux.io/rob/clipper/media"
 	"git.netflux.io/rob/clipper/server"
 	awsconfig "github.com/aws/aws-sdk-go-v2/config"
 	"github.com/aws/aws-sdk-go-v2/credentials"
 	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"github.com/jackc/pgx/v4/pgxpool"
 	"github.com/kkdai/youtube/v2"
+	"go.uber.org/zap"
 )
 
 const (
-	DefaultTimeout = 600 * time.Second
+	defaultTimeout   = 600 * time.Second
+	defaultURLExpiry = time.Hour
 )
 
 func main() {
@@ -35,6 +37,9 @@ func main() {
 	}
 	store := store.New(dbConn)
 
+	// Create a Youtube client
+	var youtubeClient youtube.Client
+
 	// Create an Amazon S3 service s3Client
 	cfg, err := awsconfig.LoadDefaultConfig(
 		ctx,
@@ -47,23 +52,39 @@ func main() {
 		log.Fatal(err)
 	}
 	s3Client := s3.NewFromConfig(cfg)
-
-	// Create an Amazon S3 presign client
 	s3PresignClient := s3.NewPresignClient(s3Client)
 
-	// Create a Youtube client
+	// Create a logger
-	var youtubeClient youtube.Client
+	logger, err := buildLogger(config)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer logger.Sync()
 
-	serverOptions := server.Options{
+	// Create a file store
-		Config:        config,
+	fileStore := filestore.NewS3FileStore(
-		Timeout:       DefaultTimeout,
+		filestore.S3API{
-		Store:         store,
-		YoutubeClient: &youtubeClient,
-		S3API: media.S3API{
 			S3Client:        s3Client,
 			S3PresignClient: s3PresignClient,
 		},
-	}
+		config.S3Bucket,
+		defaultURLExpiry,
+		logger.Sugar().Named("filestore"),
+	)
 
-	log.Fatal(server.Start(serverOptions))
+	log.Fatal(server.Start(server.Options{
+		Config:        config,
+		Timeout:       defaultTimeout,
+		Store:         store,
+		YoutubeClient: &youtubeClient,
+		FileStore:     fileStore,
+		Logger:        logger,
+	}))
+}
+
+func buildLogger(c config.Config) (*zap.Logger, error) {
+	if c.Environment == config.EnvDevelopment {
+		return zap.NewDevelopment()
+	}
+	return zap.NewProduction()
 }

backend/filestore/s3.go

@@ -0,0 +1,280 @@
+package filestore
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"sort"
+	"sync"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	signerv4 "github.com/aws/aws-sdk-go-v2/aws/signer/v4"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
+	"github.com/aws/aws-sdk-go-v2/service/s3/types"
+	"go.uber.org/zap"
+)
+
+// S3API provides an API to AWS S3.
+type S3API struct {
+	S3Client
+	S3PresignClient
+}
+
+// S3Client wraps the AWS S3 service client.
+type S3Client interface {
+	GetObject(context.Context, *s3.GetObjectInput, ...func(*s3.Options)) (*s3.GetObjectOutput, error)
+	CreateMultipartUpload(context.Context, *s3.CreateMultipartUploadInput, ...func(*s3.Options)) (*s3.CreateMultipartUploadOutput, error)
+	UploadPart(context.Context, *s3.UploadPartInput, ...func(*s3.Options)) (*s3.UploadPartOutput, error)
+	AbortMultipartUpload(context.Context, *s3.AbortMultipartUploadInput, ...func(*s3.Options)) (*s3.AbortMultipartUploadOutput, error)
+	CompleteMultipartUpload(context.Context, *s3.CompleteMultipartUploadInput, ...func(*s3.Options)) (*s3.CompleteMultipartUploadOutput, error)
+}
+
+// S3PresignClient wraps the AWS S3 Presign client.
+type S3PresignClient interface {
+	PresignGetObject(context.Context, *s3.GetObjectInput, ...func(*s3.PresignOptions)) (*signerv4.PresignedHTTPRequest, error)
+}
+
+// S3FileStore stores files on Amazon S3.
+type S3FileStore struct {
+	s3        S3API
+	bucket    string
+	urlExpiry time.Duration
+	logger    *zap.SugaredLogger
+}
+
+// NewS3FileStore builds a new S3FileStore using the provided configuration.
+func NewS3FileStore(s3API S3API, bucket string, urlExpiry time.Duration, logger *zap.SugaredLogger) *S3FileStore {
+	return &S3FileStore{
+		s3:        s3API,
+		bucket:    bucket,
+		urlExpiry: urlExpiry,
+		logger:    logger,
+	}
+}
+
+// GetObject returns an io.Reader that returns an object associated with the
+// provided key.
+func (s *S3FileStore) GetObject(ctx context.Context, key string) (io.ReadCloser, error) {
+	input := s3.GetObjectInput{
+		Bucket: aws.String(s.bucket),
+		Key:    aws.String(key),
+	}
+	output, err := s.s3.GetObject(ctx, &input)
+	if err != nil {
+		return nil, fmt.Errorf("error getting object from s3: %v", err)
+	}
+	return output.Body, nil
+}
+
+// GetObjectWithRange returns an io.Reader that returns a partial object
+// associated with the provided key.
+func (s *S3FileStore) GetObjectWithRange(ctx context.Context, key string, start, end int64) (io.ReadCloser, error) {
+	byteRange := fmt.Sprintf("bytes=%d-%d", start, end)
+	input := s3.GetObjectInput{
+		Bucket: aws.String(s.bucket),
+		Key:    aws.String(key),
+		Range:  aws.String(byteRange),
+	}
+	output, err := s.s3.GetObject(ctx, &input)
+	if err != nil {
+		return nil, fmt.Errorf("error getting object from s3: %v", err)
+	}
+	return output.Body, nil
+}
+
+// GetURL returns a presigned URL pointing to the object associated with the
+// provided key.
+func (s *S3FileStore) GetURL(ctx context.Context, key string) (string, error) {
+	input := s3.GetObjectInput{
+		Bucket: aws.String(s.bucket),
+		Key:    aws.String(key),
+	}
+	request, err := s.s3.PresignGetObject(ctx, &input, s3.WithPresignExpires(s.urlExpiry))
+	if err != nil {
+		return "", fmt.Errorf("error generating presigned URL: %v", err)
+	}
+	return request.URL, nil
+}
+
+// PutObject uploads an object using multipart upload, returning the number of
+// bytes uploaded and any error.
+func (s *S3FileStore) PutObject(ctx context.Context, key string, r io.Reader, contentType string) (int64, error) {
+	const (
+		targetPartSizeBytes = 5 * 1024 * 1024 // 5MB
+		readBufferSizeBytes = 32_768          // 32Kb
+	)
+
+	var uploaded bool
+
+	input := s3.CreateMultipartUploadInput{
+		Bucket:      aws.String(s.bucket),
+		Key:         aws.String(key),
+		ContentType: aws.String(contentType),
+	}
+	output, err := s.s3.CreateMultipartUpload(ctx, &input)
+	if err != nil {
+		return 0, fmt.Errorf("error creating multipart upload: %v", err)
+	}
+
+	// abort the upload if possible, logging any errors, on exit.
+	defer func() {
+		if uploaded {
+			return
+		}
+		input := s3.AbortMultipartUploadInput{
+			Bucket:   aws.String(s.bucket),
+			Key:      aws.String(key),
+			UploadId: output.UploadId,
+		}
+
+		// if the context was cancelled, just use the background context.
+		ctxToUse := ctx
+		if ctxToUse.Err() != nil {
+			ctxToUse = context.Background()
+		}
+
+		_, deferErr := s.s3.AbortMultipartUpload(ctxToUse, &input)
+		if deferErr != nil {
+			s.logger.Errorf("uploader: error aborting upload: %v", deferErr)
+		} else {
+			s.logger.Infof("aborted upload, key = %s", key)
+		}
+	}()
+
+	type uploadedPart struct {
+		part types.CompletedPart
+		size int64
+	}
+	uploadResultChan := make(chan uploadedPart)
+	uploadErrorChan := make(chan error, 1)
+
+	// uploadPart uploads an individual part.
+	uploadPart := func(wg *sync.WaitGroup, buf []byte, partNum int32) {
+		defer wg.Done()
+
+		partLen := int64(len(buf))
+		s.logger.With("key", key, "partNum", partNum, "partLen", partLen).Debug("uploading part")
+
+		input := s3.UploadPartInput{
+			Body:          bytes.NewReader(buf),
+			Bucket:        aws.String(s.bucket),
+			Key:           aws.String(key),
+			PartNumber:    partNum,
+			UploadId:      output.UploadId,
+			ContentLength: partLen,
+		}
+
+		output, uploadErr := s.s3.UploadPart(ctx, &input)
+		if uploadErr != nil {
+			// TODO: retry on failure
+			uploadErrorChan <- uploadErr
+			return
+		}
+
+		s.logger.With("key", key, "partNum", partNum, "partLen", partLen, "etag", *output.ETag).Debug("uploaded part")
+
+		uploadResultChan <- uploadedPart{
+			part: types.CompletedPart{ETag: output.ETag, PartNumber: partNum},
+			size: partLen,
+		}
+	}
+
+	wgDone := make(chan struct{})
+	var wg sync.WaitGroup
+	wg.Add(1) // done when the reader goroutine returns
+	go func() {
+		wg.Wait()
+		wgDone <- struct{}{}
+	}()
+
+	readChan := make(chan error, 1)
+
+	go func() {
+		defer wg.Done()
+
+		var closing bool
+		currPart := bytes.NewBuffer(make([]byte, 0, targetPartSizeBytes+readBufferSizeBytes))
+		partNum := int32(1)
+		buf := make([]byte, readBufferSizeBytes)
+
+		for {
+			n, readErr := r.Read(buf)
+			if readErr == io.EOF {
+				closing = true
+			} else if readErr != nil {
+				readChan <- readErr
+				return
+			}
+
+			_, _ = currPart.Write(buf[:n])
+			if closing || currPart.Len() >= targetPartSizeBytes {
+				part := make([]byte, currPart.Len())
+				copy(part, currPart.Bytes())
+				currPart.Truncate(0)
+
+				wg.Add(1)
+				go uploadPart(&wg, part, partNum)
+				partNum++
+			}
+
+			if closing {
+				return
+			}
+		}
+	}()
+
+	results := make([]uploadedPart, 0, 64)
+
+outer:
+	for {
+		select {
+		case readErr := <-readChan:
+			if readErr != io.EOF {
+				return 0, fmt.Errorf("reader error: %v", readErr)
+			}
+		case uploadResult := <-uploadResultChan:
+			results = append(results, uploadResult)
+		case uploadErr := <-uploadErrorChan:
+			return 0, fmt.Errorf("error while uploading part: %v", uploadErr)
+		case <-ctx.Done():
+			return 0, ctx.Err()
+		case <-wgDone:
+			break outer
+		}
+	}
+
+	if len(results) == 0 {
+		return 0, errors.New("no parts available to upload")
+	}
+
+	completedParts := make([]types.CompletedPart, 0, 64)
+	var uploadedBytes int64
+	for _, result := range results {
+		completedParts = append(completedParts, result.part)
+		uploadedBytes += result.size
+	}
+
+	// the parts may be out of order, especially with slow network conditions:
+	sort.Slice(completedParts, func(i, j int) bool {
+		return completedParts[i].PartNumber < completedParts[j].PartNumber
+	})
+
+	completeInput := s3.CompleteMultipartUploadInput{
+		Bucket:          aws.String(s.bucket),
+		Key:             aws.String(key),
+		UploadId:        output.UploadId,
+		MultipartUpload: &types.CompletedMultipartUpload{Parts: completedParts},
+	}
+
+	if _, err = s.s3.CompleteMultipartUpload(ctx, &completeInput); err != nil {
+		return 0, fmt.Errorf("error completing upload: %v", err)
+	}
+
+	s.logger.With("key", key, "numParts", len(completedParts), "len", uploadedBytes).Debug("completed upload")
+	uploaded = true
+
+	return uploadedBytes, nil
+}

backend/generated/mocks/FileStore.go

@@ -0,0 +1,103 @@
+// Code generated by mockery v2.9.4. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+	io "io"
+
+	mock "github.com/stretchr/testify/mock"
+)
+
+// FileStore is an autogenerated mock type for the FileStore type
+type FileStore struct {
+	mock.Mock
+}
+
+// GetObject provides a mock function with given fields: _a0, _a1
+func (_m *FileStore) GetObject(_a0 context.Context, _a1 string) (io.ReadCloser, error) {
+	ret := _m.Called(_a0, _a1)
+
+	var r0 io.ReadCloser
+	if rf, ok := ret.Get(0).(func(context.Context, string) io.ReadCloser); ok {
+		r0 = rf(_a0, _a1)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(io.ReadCloser)
+		}
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, string) error); ok {
+		r1 = rf(_a0, _a1)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// GetObjectWithRange provides a mock function with given fields: _a0, _a1, _a2, _a3
+func (_m *FileStore) GetObjectWithRange(_a0 context.Context, _a1 string, _a2 int64, _a3 int64) (io.ReadCloser, error) {
+	ret := _m.Called(_a0, _a1, _a2, _a3)
+
+	var r0 io.ReadCloser
+	if rf, ok := ret.Get(0).(func(context.Context, string, int64, int64) io.ReadCloser); ok {
+		r0 = rf(_a0, _a1, _a2, _a3)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(io.ReadCloser)
+		}
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, string, int64, int64) error); ok {
+		r1 = rf(_a0, _a1, _a2, _a3)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// GetURL provides a mock function with given fields: _a0, _a1
+func (_m *FileStore) GetURL(_a0 context.Context, _a1 string) (string, error) {
+	ret := _m.Called(_a0, _a1)
+
+	var r0 string
+	if rf, ok := ret.Get(0).(func(context.Context, string) string); ok {
+		r0 = rf(_a0, _a1)
+	} else {
+		r0 = ret.Get(0).(string)
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, string) error); ok {
+		r1 = rf(_a0, _a1)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// PutObject provides a mock function with given fields: _a0, _a1, _a2, _a3
+func (_m *FileStore) PutObject(_a0 context.Context, _a1 string, _a2 io.Reader, _a3 string) (int64, error) {
+	ret := _m.Called(_a0, _a1, _a2, _a3)
+
+	var r0 int64
+	if rf, ok := ret.Get(0).(func(context.Context, string, io.Reader, string) int64); ok {
+		r0 = rf(_a0, _a1, _a2, _a3)
+	} else {
+		r0 = ret.Get(0).(int64)
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, string, io.Reader, string) error); ok {
+		r1 = rf(_a0, _a1, _a2, _a3)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}

backend/generated/mocks/S3Client.go

@@ -1,166 +0,0 @@
-// Code generated by mockery v2.9.4. DO NOT EDIT.
-
-package mocks
-
-import (
-	context "context"
-
-	mock "github.com/stretchr/testify/mock"
-
-	s3 "github.com/aws/aws-sdk-go-v2/service/s3"
-)
-
-// S3Client is an autogenerated mock type for the S3Client type
-type S3Client struct {
-	mock.Mock
-}
-
-// AbortMultipartUpload provides a mock function with given fields: _a0, _a1, _a2
-func (_m *S3Client) AbortMultipartUpload(_a0 context.Context, _a1 *s3.AbortMultipartUploadInput, _a2 ...func(*s3.Options)) (*s3.AbortMultipartUploadOutput, error) {
-	_va := make([]interface{}, len(_a2))
-	for _i := range _a2 {
-		_va[_i] = _a2[_i]
-	}
-	var _ca []interface{}
-	_ca = append(_ca, _a0, _a1)
-	_ca = append(_ca, _va...)
-	ret := _m.Called(_ca...)
-
-	var r0 *s3.AbortMultipartUploadOutput
-	if rf, ok := ret.Get(0).(func(context.Context, *s3.AbortMultipartUploadInput, ...func(*s3.Options)) *s3.AbortMultipartUploadOutput); ok {
-		r0 = rf(_a0, _a1, _a2...)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*s3.AbortMultipartUploadOutput)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, *s3.AbortMultipartUploadInput, ...func(*s3.Options)) error); ok {
-		r1 = rf(_a0, _a1, _a2...)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// CompleteMultipartUpload provides a mock function with given fields: _a0, _a1, _a2
-func (_m *S3Client) CompleteMultipartUpload(_a0 context.Context, _a1 *s3.CompleteMultipartUploadInput, _a2 ...func(*s3.Options)) (*s3.CompleteMultipartUploadOutput, error) {
-	_va := make([]interface{}, len(_a2))
-	for _i := range _a2 {
-		_va[_i] = _a2[_i]
-	}
-	var _ca []interface{}
-	_ca = append(_ca, _a0, _a1)
-	_ca = append(_ca, _va...)
-	ret := _m.Called(_ca...)
-
-	var r0 *s3.CompleteMultipartUploadOutput
-	if rf, ok := ret.Get(0).(func(context.Context, *s3.CompleteMultipartUploadInput, ...func(*s3.Options)) *s3.CompleteMultipartUploadOutput); ok {
-		r0 = rf(_a0, _a1, _a2...)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*s3.CompleteMultipartUploadOutput)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, *s3.CompleteMultipartUploadInput, ...func(*s3.Options)) error); ok {
-		r1 = rf(_a0, _a1, _a2...)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// CreateMultipartUpload provides a mock function with given fields: _a0, _a1, _a2
-func (_m *S3Client) CreateMultipartUpload(_a0 context.Context, _a1 *s3.CreateMultipartUploadInput, _a2 ...func(*s3.Options)) (*s3.CreateMultipartUploadOutput, error) {
-	_va := make([]interface{}, len(_a2))
-	for _i := range _a2 {
-		_va[_i] = _a2[_i]
-	}
-	var _ca []interface{}
-	_ca = append(_ca, _a0, _a1)
-	_ca = append(_ca, _va...)
-	ret := _m.Called(_ca...)
-
-	var r0 *s3.CreateMultipartUploadOutput
-	if rf, ok := ret.Get(0).(func(context.Context, *s3.CreateMultipartUploadInput, ...func(*s3.Options)) *s3.CreateMultipartUploadOutput); ok {
-		r0 = rf(_a0, _a1, _a2...)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*s3.CreateMultipartUploadOutput)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, *s3.CreateMultipartUploadInput, ...func(*s3.Options)) error); ok {
-		r1 = rf(_a0, _a1, _a2...)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// GetObject provides a mock function with given fields: _a0, _a1, _a2
-func (_m *S3Client) GetObject(_a0 context.Context, _a1 *s3.GetObjectInput, _a2 ...func(*s3.Options)) (*s3.GetObjectOutput, error) {
-	_va := make([]interface{}, len(_a2))
-	for _i := range _a2 {
-		_va[_i] = _a2[_i]
-	}
-	var _ca []interface{}
-	_ca = append(_ca, _a0, _a1)
-	_ca = append(_ca, _va...)
-	ret := _m.Called(_ca...)
-
-	var r0 *s3.GetObjectOutput
-	if rf, ok := ret.Get(0).(func(context.Context, *s3.GetObjectInput, ...func(*s3.Options)) *s3.GetObjectOutput); ok {
-		r0 = rf(_a0, _a1, _a2...)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*s3.GetObjectOutput)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, *s3.GetObjectInput, ...func(*s3.Options)) error); ok {
-		r1 = rf(_a0, _a1, _a2...)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// UploadPart provides a mock function with given fields: _a0, _a1, _a2
-func (_m *S3Client) UploadPart(_a0 context.Context, _a1 *s3.UploadPartInput, _a2 ...func(*s3.Options)) (*s3.UploadPartOutput, error) {
-	_va := make([]interface{}, len(_a2))
-	for _i := range _a2 {
-		_va[_i] = _a2[_i]
-	}
-	var _ca []interface{}
-	_ca = append(_ca, _a0, _a1)
-	_ca = append(_ca, _va...)
-	ret := _m.Called(_ca...)
-
-	var r0 *s3.UploadPartOutput
-	if rf, ok := ret.Get(0).(func(context.Context, *s3.UploadPartInput, ...func(*s3.Options)) *s3.UploadPartOutput); ok {
-		r0 = rf(_a0, _a1, _a2...)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*s3.UploadPartOutput)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, *s3.UploadPartInput, ...func(*s3.Options)) error); ok {
-		r1 = rf(_a0, _a1, _a2...)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}

backend/generated/mocks/S3PresignClient.go

@@ -1,48 +0,0 @@
-// Code generated by mockery v2.9.4. DO NOT EDIT.
-
-package mocks
-
-import (
-	context "context"
-
-	mock "github.com/stretchr/testify/mock"
-
-	s3 "github.com/aws/aws-sdk-go-v2/service/s3"
-
-	v4 "github.com/aws/aws-sdk-go-v2/aws/signer/v4"
-)
-
-// S3PresignClient is an autogenerated mock type for the S3PresignClient type
-type S3PresignClient struct {
-	mock.Mock
-}
-
-// PresignGetObject provides a mock function with given fields: _a0, _a1, _a2
-func (_m *S3PresignClient) PresignGetObject(_a0 context.Context, _a1 *s3.GetObjectInput, _a2 ...func(*s3.PresignOptions)) (*v4.PresignedHTTPRequest, error) {
-	_va := make([]interface{}, len(_a2))
-	for _i := range _a2 {
-		_va[_i] = _a2[_i]
-	}
-	var _ca []interface{}
-	_ca = append(_ca, _a0, _a1)
-	_ca = append(_ca, _va...)
-	ret := _m.Called(_ca...)
-
-	var r0 *v4.PresignedHTTPRequest
-	if rf, ok := ret.Get(0).(func(context.Context, *s3.GetObjectInput, ...func(*s3.PresignOptions)) *v4.PresignedHTTPRequest); ok {
-		r0 = rf(_a0, _a1, _a2...)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*v4.PresignedHTTPRequest)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, *s3.GetObjectInput, ...func(*s3.PresignOptions)) error); ok {
-		r1 = rf(_a0, _a1, _a2...)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}

backend/media/get_audio.go

@@ -13,8 +13,6 @@ import (
 
 	"git.netflux.io/rob/clipper/config"
 	"git.netflux.io/rob/clipper/generated/store"
-	"github.com/aws/aws-sdk-go-v2/aws"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"go.uber.org/zap"
 )
 
@@ -31,27 +29,27 @@ type GetAudioProgressReader interface {
 
 // audioGetter manages getting and processing audio from Youtube.
 type audioGetter struct {
-	store   Store
+	store     Store
-	youtube YoutubeClient
+	youtube   YoutubeClient
-	s3API   S3API
+	fileStore FileStore
-	config  config.Config
+	config    config.Config
-	logger  *zap.SugaredLogger
+	logger    *zap.SugaredLogger
 }
 
 // newAudioGetter returns a new audioGetter.
-func newAudioGetter(store Store, youtube YoutubeClient, s3API S3API, config config.Config, logger *zap.SugaredLogger) *audioGetter {
+func newAudioGetter(store Store, youtube YoutubeClient, fileStore FileStore, config config.Config, logger *zap.SugaredLogger) *audioGetter {
 	return &audioGetter{
-		store:   store,
+		store:     store,
-		youtube: youtube,
+		youtube:   youtube,
-		s3API:   s3API,
+		fileStore: fileStore,
-		config:  config,
+		config:    config,
-		logger:  logger,
+		logger:    logger,
 	}
 }
 
-// GetAudio gets the audio, processes it and uploads it to S3. It returns a
+// GetAudio gets the audio, processes it and uploads it to a file store. It
-// GetAudioProgressReader that can be used to poll progress reports and audio
+// returns a GetAudioProgressReader that can be used to poll progress reports
-// peaks.
+// and audio peaks.
 //
 // TODO: accept domain object instead
 func (g *audioGetter) GetAudio(ctx context.Context, mediaSet store.MediaSet, numBins int) (GetAudioProgressReader, error) {
@@ -114,33 +112,28 @@ func (s *audioGetterState) getAudio(ctx context.Context, r io.ReadCloser, mediaS
 	wg.Add(2)
 
 	// Upload the encoded audio.
+	// TODO: fix error shadowing in these two goroutines.
 	go func() {
 		defer wg.Done()
 
-		// TODO: use mediaSet func to fetch s3Key
+		// TODO: use mediaSet func to fetch key
-		s3Key := fmt.Sprintf("media_sets/%s/audio.opus", mediaSet.ID)
+		key := fmt.Sprintf("media_sets/%s/audio.opus", mediaSet.ID)
 
-		uploader := newMultipartUploader(s.s3API, s.logger)
+		_, encErr := s.fileStore.PutObject(ctx, key, pr, "audio/opus")
-		_, encErr := uploader.Upload(ctx, pr, s.config.S3Bucket, s3Key, "audio/opus")
 		if encErr != nil {
 			s.CloseWithError(fmt.Errorf("error uploading encoded audio: %v", encErr))
 			return
 		}
 
-		input := s3.GetObjectInput{
+		presignedAudioURL, err = s.fileStore.GetURL(ctx, key)
-			Bucket: aws.String(s.config.S3Bucket),
-			Key:    aws.String(s3Key),
-		}
-		request, err := s.s3API.PresignGetObject(ctx, &input, s3.WithPresignExpires(getAudioExpiresIn))
 		if err != nil {
 			s.CloseWithError(fmt.Errorf("error generating presigned URL: %v", err))
 		}
-		presignedAudioURL = request.URL
 
 		if _, err = s.store.SetEncodedAudioUploaded(ctx, store.SetEncodedAudioUploadedParams{
 			ID:                   mediaSet.ID,
 			AudioEncodedS3Bucket: sqlString(s.config.S3Bucket),
-			AudioEncodedS3Key:    sqlString(s3Key),
+			AudioEncodedS3Key:    sqlString(key),
 		}); err != nil {
 			s.CloseWithError(fmt.Errorf("error setting encoded audio uploaded: %v", err))
 		}
@@ -150,12 +143,11 @@ func (s *audioGetterState) getAudio(ctx context.Context, r io.ReadCloser, mediaS
 	go func() {
 		defer wg.Done()
 
-		// TODO: use mediaSet func to fetch s3Key
+		// TODO: use mediaSet func to fetch key
-		s3Key := fmt.Sprintf("media_sets/%s/audio.raw", mediaSet.ID)
+		key := fmt.Sprintf("media_sets/%s/audio.raw", mediaSet.ID)
 
 		teeReader := io.TeeReader(stdout, s)
-		uploader := newMultipartUploader(s.s3API, s.logger)
+		bytesUploaded, rawErr := s.fileStore.PutObject(ctx, key, teeReader, rawAudioMimeType)
-		bytesUploaded, rawErr := uploader.Upload(ctx, teeReader, s.config.S3Bucket, s3Key, rawAudioMimeType)
 		if rawErr != nil {
 			s.CloseWithError(fmt.Errorf("error uploading raw audio: %v", rawErr))
 			return
@@ -164,7 +156,7 @@ func (s *audioGetterState) getAudio(ctx context.Context, r io.ReadCloser, mediaS
 		if _, err = s.store.SetRawAudioUploaded(ctx, store.SetRawAudioUploadedParams{
 			ID:               mediaSet.ID,
 			AudioRawS3Bucket: sqlString(s.config.S3Bucket),
-			AudioRawS3Key:    sqlString(s3Key),
+			AudioRawS3Key:    sqlString(key),
 			AudioFrames:      sqlInt64(bytesUploaded / SizeOfInt16 / int64(mediaSet.AudioChannels)),
 		}); err != nil {
 			s.CloseWithError(fmt.Errorf("error setting raw audio uploaded: %v", err))

backend/media/get_video.go

@@ -6,8 +6,6 @@ import (
 	"io"
 
 	"git.netflux.io/rob/clipper/generated/store"
-	"github.com/aws/aws-sdk-go-v2/aws"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"github.com/google/uuid"
 	"go.uber.org/zap"
 )
@@ -24,9 +22,9 @@ type GetVideoProgressReader interface {
 }
 
 type videoGetter struct {
-	s3     S3API
+	store     Store
-	store  Store
+	fileStore FileStore
-	logger *zap.SugaredLogger
+	logger    *zap.SugaredLogger
 }
 
 type videoGetterState struct {
@@ -41,21 +39,20 @@ type videoGetterState struct {
 	errorChan                chan error
 }
 
-func newVideoGetter(s3 S3API, store Store, logger *zap.SugaredLogger) *videoGetter {
+func newVideoGetter(store Store, fileStore FileStore, logger *zap.SugaredLogger) *videoGetter {
-	return &videoGetter{s3: s3, store: store, logger: logger}
+	return &videoGetter{store: store, fileStore: fileStore, logger: logger}
 }
 
-// GetVideo gets video from Youtube and uploads it to S3 using the specified
+// GetVideo gets video from Youtube and uploads it to a filestore using the
-// bucket, key and content type. The returned reader must have its Next()
+// specified key and content type. The returned reader must have its Next()
 // method called until error = io.EOF, otherwise a deadlock or other resource
 // leakage is likely.
-func (g *videoGetter) GetVideo(ctx context.Context, r io.Reader, exp int64, mediaSetID uuid.UUID, bucket, key, contentType string) (GetVideoProgressReader, error) {
+func (g *videoGetter) GetVideo(ctx context.Context, r io.Reader, exp int64, mediaSetID uuid.UUID, key, contentType string) (GetVideoProgressReader, error) {
 	s := &videoGetterState{
 		videoGetter:  g,
 		r:            newProgressReader(r, "video", exp, g.logger),
 		exp:          exp,
 		mediaSetID:   mediaSetID,
-		bucket:       bucket,
 		key:          key,
 		contentType:  contentType,
 		progressChan: make(chan GetVideoProgress),
@@ -69,7 +66,7 @@ func (g *videoGetter) GetVideo(ctx context.Context, r io.Reader, exp int64, medi
 }
 
 // Write implements io.Writer. It is copied that same data that is written to
-// S3, to implement progress tracking.
+// the file store, to implement progress tracking.
 func (s *videoGetterState) Write(p []byte) (int, error) {
 	s.count += int64(len(p))
 	pc := (float32(s.count) / float32(s.exp)) * 100
@@ -78,24 +75,18 @@ func (s *videoGetterState) Write(p []byte) (int, error) {
 }
 
 func (s *videoGetterState) getVideo(ctx context.Context) {
-	uploader := newMultipartUploader(s.s3, s.logger)
 	teeReader := io.TeeReader(s.r, s)
 
-	_, err := uploader.Upload(ctx, teeReader, s.bucket, s.key, s.contentType)
+	_, err := s.fileStore.PutObject(ctx, s.key, teeReader, s.contentType)
 	if err != nil {
-		s.errorChan <- fmt.Errorf("error uploading to S3: %v", err)
+		s.errorChan <- fmt.Errorf("error uploading to file store: %v", err)
 		return
 	}
 
-	input := s3.GetObjectInput{
+	s.url, err = s.fileStore.GetURL(ctx, s.key)
-		Bucket: aws.String(s.bucket),
-		Key:    aws.String(s.key),
-	}
-	request, err := s.s3.PresignGetObject(ctx, &input, s3.WithPresignExpires(getVideoExpiresIn))
 	if err != nil {
-		s.errorChan <- fmt.Errorf("error generating presigned URL: %v", err)
+		s.errorChan <- fmt.Errorf("error getting object URL: %v", err)
 	}
-	s.url = request.URL
 
 	storeParams := store.SetVideoUploadedParams{
 		ID:            s.mediaSetID,

backend/media/service.go

@@ -14,8 +14,6 @@ import (
 
 	"git.netflux.io/rob/clipper/config"
 	"git.netflux.io/rob/clipper/generated/store"
-	"github.com/aws/aws-sdk-go-v2/aws"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"github.com/google/uuid"
 	"github.com/jackc/pgx/v4"
 	youtubev2 "github.com/kkdai/youtube/v2"
@@ -41,27 +39,27 @@ const (
 
 // MediaSetService exposes logical flows handling MediaSets.
 type MediaSetService struct {
-	store   Store
+	store     Store
-	youtube YoutubeClient
+	youtube   YoutubeClient
-	s3      S3API
+	fileStore FileStore
-	config  config.Config
+	config    config.Config
-	logger  *zap.SugaredLogger
+	logger    *zap.SugaredLogger
 }
 
-func NewMediaSetService(store Store, youtubeClient YoutubeClient, s3API S3API, config config.Config, logger *zap.Logger) *MediaSetService {
+func NewMediaSetService(store Store, youtubeClient YoutubeClient, fileStore FileStore, config config.Config, logger *zap.SugaredLogger) *MediaSetService {
 	return &MediaSetService{
-		store:   store,
+		store:     store,
-		youtube: youtubeClient,
+		youtube:   youtubeClient,
-		s3:      s3API,
+		fileStore: fileStore,
-		config:  config,
+		config:    config,
-		logger:  logger.Sugar(),
+		logger:    logger,
 	}
 }
 
 // Get fetches the metadata for a given MediaSet source. If it does not exist
 // in the local DB, it will attempt to create it. After the resource has been
 // created, other endpoints (e.g. GetAudio) can be called to fetch media from
-// Youtube and store it in S3.
+// Youtube and store it in a file store.
 func (s *MediaSetService) Get(ctx context.Context, youtubeID string) (*MediaSet, error) {
 	var (
 		mediaSet *MediaSet
@@ -220,15 +218,11 @@ func (s *MediaSetService) GetVideo(ctx context.Context, id uuid.UUID) (GetVideoP
 	}
 
 	if mediaSet.VideoS3UploadedAt.Valid {
-		input := s3.GetObjectInput{
+		url, err := s.fileStore.GetURL(ctx, mediaSet.VideoS3Key.String)
-			Bucket: aws.String(s.config.S3Bucket),
+		if err != nil {
-			Key:    aws.String(mediaSet.VideoS3Key.String),
+			return nil, fmt.Errorf("error generating presigned URL: %v", err)
 		}
-		request, signErr := s.s3.PresignGetObject(ctx, &input, s3.WithPresignExpires(getVideoExpiresIn))
+		videoGetter := videoGetterDownloaded(url)
-		if signErr != nil {
-			return nil, fmt.Errorf("error generating presigned URL: %v", signErr)
-		}
-		videoGetter := videoGetterDownloaded(request.URL)
 		return &videoGetter, nil
 	}
 
@@ -247,17 +241,16 @@ func (s *MediaSetService) GetVideo(ctx context.Context, id uuid.UUID) (GetVideoP
 		return nil, fmt.Errorf("error fetching stream: %v", err)
 	}
 
-	// TODO: use mediaSet func to fetch s3Key
+	// TODO: use mediaSet func to fetch videoKey
-	s3Key := fmt.Sprintf("media_sets/%s/video.mp4", mediaSet.ID)
+	videoKey := fmt.Sprintf("media_sets/%s/video.mp4", mediaSet.ID)
 
-	videoGetter := newVideoGetter(s.s3, s.store, s.logger)
+	videoGetter := newVideoGetter(s.store, s.fileStore, s.logger)
 	return videoGetter.GetVideo(
 		ctx,
 		stream,
 		format.ContentLength,
 		mediaSet.ID,
-		s.config.S3Bucket,
+		videoKey,
-		s3Key,
 		format.MimeType,
 	)
 }
@@ -273,25 +266,21 @@ func (s *MediaSetService) GetAudio(ctx context.Context, id uuid.UUID, numBins in
 	// Otherwise, we cannot return both peaks and a presigned URL for use by the
 	// player.
 	if mediaSet.AudioRawS3UploadedAt.Valid && mediaSet.AudioEncodedS3UploadedAt.Valid {
-		return s.getAudioFromS3(ctx, mediaSet, numBins)
+		return s.getAudioFromFileStore(ctx, mediaSet, numBins)
 	}
 
 	return s.getAudioFromYoutube(ctx, mediaSet, numBins)
 }
 
 func (s *MediaSetService) getAudioFromYoutube(ctx context.Context, mediaSet store.MediaSet, numBins int) (GetAudioProgressReader, error) {
-	audioGetter := newAudioGetter(s.store, s.youtube, s.s3, s.config, s.logger)
+	audioGetter := newAudioGetter(s.store, s.youtube, s.fileStore, s.config, s.logger)
 	return audioGetter.GetAudio(ctx, mediaSet, numBins)
 }
 
-func (s *MediaSetService) getAudioFromS3(ctx context.Context, mediaSet store.MediaSet, numBins int) (GetAudioProgressReader, error) {
+func (s *MediaSetService) getAudioFromFileStore(ctx context.Context, mediaSet store.MediaSet, numBins int) (GetAudioProgressReader, error) {
-	input := s3.GetObjectInput{
+	object, err := s.fileStore.GetObject(ctx, mediaSet.AudioRawS3Key.String)
-		Bucket: aws.String(mediaSet.AudioRawS3Bucket.String),
-		Key:    aws.String(mediaSet.AudioRawS3Key.String),
-	}
-	output, err := s.s3.GetObject(ctx, &input)
 	if err != nil {
-		return nil, fmt.Errorf("error getting object from s3: %v", err)
+		return nil, fmt.Errorf("error getting object from file store: %v", err)
 	}
 
 	getAudioProgressReader, err := newGetAudioProgressReader(
@@ -303,10 +292,10 @@ func (s *MediaSetService) getAudioFromS3(ctx context.Context, mediaSet store.Med
 		return nil, fmt.Errorf("error creating audio reader: %v", err)
 	}
 
-	state := getAudioFromS3State{
+	state := getAudioFromFileStoreState{
 		getAudioProgressReader: getAudioProgressReader,
-		s3Reader:               NewModuloBufReader(output.Body, int(mediaSet.AudioChannels)*SizeOfInt16),
+		reader:                 NewModuloBufReader(object, int(mediaSet.AudioChannels)*SizeOfInt16),
-		s3API:                  s.s3,
+		fileStore:              s.fileStore,
 		config:                 s.config,
 		logger:                 s.logger,
 	}
@@ -315,21 +304,21 @@ func (s *MediaSetService) getAudioFromS3(ctx context.Context, mediaSet store.Med
 	return &state, nil
 }
 
-type getAudioFromS3State struct {
+type getAudioFromFileStoreState struct {
 	*getAudioProgressReader
 
-	s3Reader io.ReadCloser
+	reader    io.ReadCloser
-	s3API    S3API
+	fileStore FileStore
-	config   config.Config
+	config    config.Config
-	logger   *zap.SugaredLogger
+	logger    *zap.SugaredLogger
 }
 
-func (s *getAudioFromS3State) run(ctx context.Context, mediaSet store.MediaSet) {
+func (s *getAudioFromFileStoreState) run(ctx context.Context, mediaSet store.MediaSet) {
 	done := make(chan error)
 	var err error
 
 	go func() {
-		_, copyErr := io.Copy(s, s.s3Reader)
+		_, copyErr := io.Copy(s, s.reader)
 		done <- copyErr
 	}()
 
@@ -344,29 +333,25 @@ outer:
 		}
 	}
 
-	if readerErr := s.s3Reader.Close(); readerErr != nil {
+	if readerErr := s.reader.Close(); readerErr != nil {
 		if err == nil {
 			err = readerErr
 		}
 	}
 
 	if err != nil {
-		s.logger.Errorf("getAudioFromS3State: error closing s3 reader: %v", err)
+		s.logger.Errorf("getAudioFromFileStoreState: error closing reader: %v", err)
 		s.CloseWithError(err)
 		return
 	}
 
-	input := s3.GetObjectInput{
+	url, err := s.fileStore.GetURL(ctx, mediaSet.AudioEncodedS3Key.String)
-		Bucket: aws.String(s.config.S3Bucket),
-		Key:    aws.String(mediaSet.AudioEncodedS3Key.String),
-	}
-	request, err := s.s3API.PresignGetObject(ctx, &input, s3.WithPresignExpires(getAudioExpiresIn))
 	if err != nil {
-		s.CloseWithError(fmt.Errorf("error generating presigned URL: %v", err))
+		s.CloseWithError(fmt.Errorf("error generating object URL: %v", err))
 	}
 
-	if iterErr := s.Close(request.URL); iterErr != nil {
+	if iterErr := s.Close(url); iterErr != nil {
-		s.logger.Errorf("getAudioFromS3State: error closing progress iterator: %v", iterErr)
+		s.logger.Errorf("getAudioFromFileStoreState: error closing progress iterator: %v", iterErr)
 	}
 }
 
@@ -381,25 +366,20 @@ func (s *MediaSetService) GetAudioSegment(ctx context.Context, id uuid.UUID, sta
 		return nil, fmt.Errorf("error getting media set: %v", err)
 	}
 
-	byteRange := fmt.Sprintf(
+	object, err := s.fileStore.GetObjectWithRange(
-		"bytes=%d-%d",
+		ctx,
+		mediaSet.AudioRawS3Key.String,
 		startFrame*int64(mediaSet.AudioChannels)*SizeOfInt16,
 		endFrame*int64(mediaSet.AudioChannels)*SizeOfInt16,
 	)
-	input := s3.GetObjectInput{
-		Bucket: aws.String(mediaSet.AudioRawS3Bucket.String),
-		Key:    aws.String(mediaSet.AudioRawS3Key.String),
-		Range:  aws.String(byteRange),
-	}
-	output, err := s.s3.GetObject(ctx, &input)
 	if err != nil {
-		return nil, fmt.Errorf("error getting object from s3: %v", err)
+		return nil, fmt.Errorf("error getting object from file store: %v", err)
 	}
-	defer output.Body.Close()
+	defer object.Close()
 
 	const readBufSizeBytes = 8_192
 	channels := int(mediaSet.AudioChannels)
-	modReader := NewModuloBufReader(output.Body, channels*SizeOfInt16)
+	modReader := NewModuloBufReader(object, channels*SizeOfInt16)
 	readBuf := make([]byte, readBufSizeBytes)
 	peaks := make([]int16, channels*numBins)
 	totalFrames := endFrame - startFrame
@@ -454,7 +434,7 @@ func (s *MediaSetService) GetAudioSegment(ctx context.Context, id uuid.UUID, sta
 	}
 
 	if bytesRead < bytesExpected {
-		s.logger.With("startFrame", startFrame, "endFrame", endFrame, "got", bytesRead, "want", bytesExpected, "key", mediaSet.AudioRawS3Key.String).Warn("short read from S3")
+		s.logger.With("startFrame", startFrame, "endFrame", endFrame, "got", bytesRead, "want", bytesExpected, "key", mediaSet.AudioRawS3Key.String).Warn("short read from file store")
 	}
 
 	return peaks, nil
@@ -521,26 +501,22 @@ func (s *MediaSetService) GetVideoThumbnail(ctx context.Context, id uuid.UUID) (
 	}
 
 	if mediaSet.VideoThumbnailS3UploadedAt.Valid {
-		return s.getThumbnailFromS3(ctx, mediaSet)
+		return s.getThumbnailFromFileStore(ctx, mediaSet)
 	}
 
 	return s.getThumbnailFromYoutube(ctx, mediaSet)
 }
 
-func (s *MediaSetService) getThumbnailFromS3(ctx context.Context, mediaSet store.MediaSet) (VideoThumbnail, error) {
+func (s *MediaSetService) getThumbnailFromFileStore(ctx context.Context, mediaSet store.MediaSet) (VideoThumbnail, error) {
-	input := s3.GetObjectInput{
+	object, err := s.fileStore.GetObject(ctx, mediaSet.VideoThumbnailS3Key.String)
-		Bucket: aws.String(mediaSet.VideoThumbnailS3Bucket.String),
-		Key:    aws.String(mediaSet.VideoThumbnailS3Key.String),
-	}
-	output, err := s.s3.GetObject(ctx, &input)
 	if err != nil {
-		return VideoThumbnail{}, fmt.Errorf("error fetching thumbnail from s3: %v", err)
+		return VideoThumbnail{}, fmt.Errorf("error fetching thumbnail from file store: %v", err)
 	}
-	defer output.Body.Close()
+	defer object.Close()
 
-	imageData, err := io.ReadAll(output.Body)
+	imageData, err := io.ReadAll(object)
 	if err != nil {
-		return VideoThumbnail{}, fmt.Errorf("error reading thumbnail from s3: %v", err)
+		return VideoThumbnail{}, fmt.Errorf("error reading thumbnail from file store: %v", err)
 	}
 
 	return VideoThumbnail{
@@ -575,13 +551,11 @@ func (s *MediaSetService) getThumbnailFromYoutube(ctx context.Context, mediaSet
 		return VideoThumbnail{}, fmt.Errorf("error reading thumbnail: %v", err)
 	}
 
-	// TODO: use mediaSet func to fetch s3Key
+	// TODO: use mediaSet func to fetch key
-	s3Key := fmt.Sprintf("media_sets/%s/thumbnail.jpg", mediaSet.ID)
+	thumbnailKey := fmt.Sprintf("media_sets/%s/thumbnail.jpg", mediaSet.ID)
 
-	uploader := newMultipartUploader(s.s3, s.logger)
 	const mimeType = "application/jpeg"
-
+	_, err = s.fileStore.PutObject(ctx, thumbnailKey, bytes.NewReader(imageData), mimeType)
-	_, err = uploader.Upload(ctx, bytes.NewReader(imageData), s.config.S3Bucket, s3Key, mimeType)
 	if err != nil {
 		return VideoThumbnail{}, fmt.Errorf("error uploading thumbnail: %v", err)
 	}
@@ -590,7 +564,7 @@ func (s *MediaSetService) getThumbnailFromYoutube(ctx context.Context, mediaSet
 		ID:                     mediaSet.ID,
 		VideoThumbnailMimeType: sqlString(mimeType),
 		VideoThumbnailS3Bucket: sqlString(s.config.S3Bucket),
-		VideoThumbnailS3Key:    sqlString(s3Key),
+		VideoThumbnailS3Key:    sqlString(thumbnailKey),
 		VideoThumbnailWidth:    sqlInt32(int32(thumbnail.Width)),
 		VideoThumbnailHeight:   sqlInt32(int32(thumbnail.Height)),
 	}
@@ -614,7 +588,7 @@ func newProgressReader(reader io.Reader, label string, exp int64, logger *zap.Su
 	return &progressReader{
 		Reader: reader,
 		exp:    exp,
-		logger: logger.Named(fmt.Sprintf("ProgressReader %s", label)),
+		logger: logger.Named(label),
 	}
 }
 

backend/media/service_test.go

@@ -1,8 +1,9 @@
 package media_test
 
 import (
+	"bytes"
 	"context"
-	"fmt"
+	"database/sql"
 	"io"
 	"os"
 	"testing"
@@ -11,7 +12,6 @@ import (
 	"git.netflux.io/rob/clipper/generated/mocks"
 	"git.netflux.io/rob/clipper/generated/store"
 	"git.netflux.io/rob/clipper/media"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
@@ -84,31 +84,34 @@ func TestGetAudioSegment(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			expectedBytes := (tc.endFrame - tc.startFrame) * int64(tc.channels) * media.SizeOfInt16
+			startByte := tc.startFrame * int64(tc.channels) * media.SizeOfInt16
+			endByte := tc.endFrame * int64(tc.channels) * media.SizeOfInt16
+			expectedBytes := endByte - startByte
 
 			audioFile, err := os.Open(tc.fixturePath)
 			require.NoError(t, err)
 			defer audioFile.Close()
 			audioData := io.NopCloser(io.LimitReader(audioFile, int64(expectedBytes)))
 
-			mediaSetID := uuid.New()
+			mediaSet := store.MediaSet{
-			mediaSet := store.MediaSet{ID: mediaSetID, AudioChannels: tc.channels}
+				ID:            uuid.New(),
+				AudioChannels: tc.channels,
+				AudioRawS3Key: sql.NullString{String: "foo", Valid: true},
+			}
 
 			// store is passed the mediaSetID and returns a mediaSet
 			store := &mocks.Store{}
-			store.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
+			store.On("GetMediaSet", mock.Anything, mediaSet.ID).Return(mediaSet, nil)
 			defer store.AssertExpectations(t)
 
-			// S3 is passed the expected byte range, and returns an io.Reader
+			// fileStore is passed the expected byte range, and returns an io.Reader
-			s3Client := &mocks.S3Client{}
+			fileStore := &mocks.FileStore{}
-			s3Client.On("GetObject", mock.Anything, mock.MatchedBy(func(input *s3.GetObjectInput) bool {
+			fileStore.
-				return *input.Range == fmt.Sprintf("bytes=0-%d", expectedBytes)
+				On("GetObjectWithRange", mock.Anything, "foo", startByte, endByte).
-			})).Return(&s3.GetObjectOutput{Body: audioData, ContentLength: tc.fixtureLen}, nil)
+				Return(audioData, nil)
-			defer s3Client.AssertExpectations(t)
-			s3API := media.S3API{S3Client: s3Client, S3PresignClient: &mocks.S3PresignClient{}}
 
-			service := media.NewMediaSetService(store, nil, s3API, config.Config{}, zap.NewNop())
+			service := media.NewMediaSetService(store, nil, fileStore, config.Config{}, zap.NewNop().Sugar())
-			peaks, err := service.GetAudioSegment(context.Background(), mediaSetID, tc.startFrame, tc.endFrame, tc.numBins)
+			peaks, err := service.GetAudioSegment(context.Background(), mediaSet.ID, tc.startFrame, tc.endFrame, tc.numBins)
 
 			if tc.wantErr == "" {
 				assert.NoError(t, err)
@@ -130,35 +133,31 @@ func BenchmarkGetAudioSegment(b *testing.B) {
 		numBins     = 2000
 	)
 
+	audioFile, err := os.Open(fixturePath)
+	require.NoError(b, err)
+	audioData, err := io.ReadAll(audioFile)
+	require.NoError(b, err)
+
+	mediaSetID := uuid.New()
+	mediaSet := store.MediaSet{ID: mediaSetID, AudioChannels: channels}
+
+	store := &mocks.Store{}
+	store.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
+
 	for n := 0; n < b.N; n++ {
+		// recreate the reader on each iteration
 		b.StopTimer()
+		readCloser := io.NopCloser(bytes.NewReader(audioData))
+		fileStore := &mocks.FileStore{}
+		fileStore.
+			On("GetObjectWithRange", mock.Anything, mock.Anything, mock.Anything, mock.Anything).
+			Return(readCloser, nil)
 
-		expectedBytes := (endFrame - startFrame) * int64(channels) * media.SizeOfInt16
+		service := media.NewMediaSetService(store, nil, fileStore, config.Config{}, zap.NewNop().Sugar())
-
-		audioFile, err := os.Open(fixturePath)
-		require.NoError(b, err)
-		audioData := io.NopCloser(io.LimitReader(audioFile, int64(expectedBytes)))
-
-		mediaSetID := uuid.New()
-		mediaSet := store.MediaSet{ID: mediaSetID, AudioChannels: channels}
-
-		store := &mocks.Store{}
-		store.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
-
-		s3Client := &mocks.S3Client{}
-		s3Client.
-			On("GetObject", mock.Anything, mock.Anything).
-			Return(&s3.GetObjectOutput{Body: audioData, ContentLength: fixtureLen}, nil)
-		s3API := media.S3API{S3Client: s3Client, S3PresignClient: &mocks.S3PresignClient{}}
-
-		service := media.NewMediaSetService(store, nil, s3API, config.Config{}, zap.NewNop())
-
 		b.StartTimer()
-		_, err = service.GetAudioSegment(context.Background(), mediaSetID, startFrame, endFrame, numBins)
-		b.StopTimer()
 
+		_, err = service.GetAudioSegment(context.Background(), mediaSetID, startFrame, endFrame, numBins)
 		require.NoError(b, err)
-		audioFile.Close()
 	}
 }
 

backend/media/types.go

@@ -1,8 +1,8 @@
 package media
 
-//go:generate mockery --recursive --name S3* --output ../generated/mocks
 //go:generate mockery --recursive --name Store --output ../generated/mocks
 //go:generate mockery --recursive --name YoutubeClient --output ../generated/mocks
+//go:generate mockery --recursive --name FileStore --output ../generated/mocks
 
 import (
 	"context"
@@ -10,8 +10,6 @@ import (
 	"time"
 
 	"git.netflux.io/rob/clipper/generated/store"
-	signerv4 "github.com/aws/aws-sdk-go-v2/aws/signer/v4"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"github.com/google/uuid"
 	youtubev2 "github.com/kkdai/youtube/v2"
 )
@@ -63,28 +61,16 @@ type Store interface {
 	SetVideoThumbnailUploaded(context.Context, store.SetVideoThumbnailUploadedParams) (store.MediaSet, error)
 }
 
-// S3API provides an API to AWS S3.
+// FileStore wraps a file store.
-type S3API struct {
+type FileStore interface {
-	S3Client
+	GetObject(ctx context.Context, key string) (io.ReadCloser, error)
-	S3PresignClient
+	GetObjectWithRange(ctx context.Context, key string, startFrame, endFrame int64) (io.ReadCloser, error)
-}
+	GetURL(ctx context.Context, key string) (string, error)
-
+	PutObject(ctx context.Context, key string, reader io.Reader, contentType string) (int64, error)
-// S3Client wraps the AWS S3 service client.
-type S3Client interface {
-	GetObject(context.Context, *s3.GetObjectInput, ...func(*s3.Options)) (*s3.GetObjectOutput, error)
-	CreateMultipartUpload(context.Context, *s3.CreateMultipartUploadInput, ...func(*s3.Options)) (*s3.CreateMultipartUploadOutput, error)
-	UploadPart(context.Context, *s3.UploadPartInput, ...func(*s3.Options)) (*s3.UploadPartOutput, error)
-	AbortMultipartUpload(context.Context, *s3.AbortMultipartUploadInput, ...func(*s3.Options)) (*s3.AbortMultipartUploadOutput, error)
-	CompleteMultipartUpload(context.Context, *s3.CompleteMultipartUploadInput, ...func(*s3.Options)) (*s3.CompleteMultipartUploadOutput, error)
-}
-
-// S3PresignClient wraps the AWS S3 Presign client.
-type S3PresignClient interface {
-	PresignGetObject(context.Context, *s3.GetObjectInput, ...func(*s3.PresignOptions)) (*signerv4.PresignedHTTPRequest, error)
 }
 
 // YoutubeClient wraps the youtube.Client client.
 type YoutubeClient interface {
-	GetVideoContext(context.Context, string) (*youtubev2.Video, error)
+	GetVideoContext(ctx context.Context, id string) (*youtubev2.Video, error)
-	GetStreamContext(context.Context, *youtubev2.Video, *youtubev2.Format) (io.ReadCloser, int64, error)
+	GetStreamContext(ctx context.Context, video *youtubev2.Video, format *youtubev2.Format) (io.ReadCloser, int64, error)
 }

backend/media/uploader.go

@@ -1,212 +0,0 @@
-package media
-
-import (
-	"bytes"
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"sort"
-	"sync"
-
-	"github.com/aws/aws-sdk-go-v2/aws"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
-	"github.com/aws/aws-sdk-go-v2/service/s3/types"
-	"go.uber.org/zap"
-)
-
-// multipartUploader uploads a file to S3.
-//
-// TODO: extract to s3 package
-type multipartUploader struct {
-	s3     S3Client
-	logger *zap.SugaredLogger
-}
-
-type uploadResult struct {
-	completedPart types.CompletedPart
-	size          int64
-}
-
-const (
-	targetPartSizeBytes = 5 * 1024 * 1024 // 5MB
-	readBufferSizeBytes = 32_768          // 32Kb
-)
-
-func newMultipartUploader(s3Client S3Client, logger *zap.SugaredLogger) *multipartUploader {
-	return &multipartUploader{s3: s3Client, logger: logger}
-}
-
-// Upload uploads to an S3 bucket in 5MB parts. It buffers data internally
-// until a part is ready to send over the network. Parts are sent as soon as
-// they exceed the minimum part size of 5MB.
-//
-// TODO: expire after configurable period.
-func (u *multipartUploader) Upload(ctx context.Context, r io.Reader, bucket, key, contentType string) (int64, error) {
-	var uploaded bool
-
-	input := s3.CreateMultipartUploadInput{
-		Bucket:      aws.String(bucket),
-		Key:         aws.String(key),
-		ContentType: aws.String(contentType),
-	}
-	output, err := u.s3.CreateMultipartUpload(ctx, &input)
-	if err != nil {
-		return 0, fmt.Errorf("error creating multipart upload: %v", err)
-	}
-
-	// abort the upload if possible, logging any errors, on exit.
-	defer func() {
-		if uploaded {
-			return
-		}
-		input := s3.AbortMultipartUploadInput{
-			Bucket:   aws.String(bucket),
-			Key:      aws.String(key),
-			UploadId: output.UploadId,
-		}
-
-		// if the context was cancelled, just use the background context.
-		ctxToUse := ctx
-		if ctxToUse.Err() != nil {
-			ctxToUse = context.Background()
-		}
-
-		_, abortErr := u.s3.AbortMultipartUpload(ctxToUse, &input)
-		if abortErr != nil {
-			u.logger.Errorf("uploader: error aborting upload: %v", abortErr)
-		} else {
-			u.logger.Infof("aborted upload, key = %s", key)
-		}
-	}()
-
-	uploadResultChan := make(chan uploadResult)
-	uploadErrorChan := make(chan error, 1)
-
-	// uploadPart uploads an individual part.
-	uploadPart := func(wg *sync.WaitGroup, buf []byte, partNum int32) {
-		defer wg.Done()
-
-		partLen := int64(len(buf))
-		u.logger.With("key", key, "partNum", partNum, "partLen", partLen).Debug("uploading part")
-
-		input := s3.UploadPartInput{
-			Body:          bytes.NewReader(buf),
-			Bucket:        aws.String(bucket),
-			Key:           aws.String(key),
-			PartNumber:    partNum,
-			UploadId:      output.UploadId,
-			ContentLength: partLen,
-		}
-
-		output, uploadErr := u.s3.UploadPart(ctx, &input)
-		if uploadErr != nil {
-			// TODO: retry on failure
-			uploadErrorChan <- uploadErr
-			return
-		}
-
-		u.logger.With("key", key, "partNum", partNum, "partLen", partLen, "etag", *output.ETag).Debug("uploaded part")
-
-		uploadResultChan <- uploadResult{
-			completedPart: types.CompletedPart{ETag: output.ETag, PartNumber: partNum},
-			size:          partLen,
-		}
-	}
-
-	wgDone := make(chan struct{})
-	var wg sync.WaitGroup
-	wg.Add(1) // done when the reader goroutine returns
-	go func() {
-		wg.Wait()
-		wgDone <- struct{}{}
-	}()
-
-	readChan := make(chan error, 1)
-
-	go func() {
-		defer wg.Done()
-
-		var closing bool
-		currPart := bytes.NewBuffer(make([]byte, 0, targetPartSizeBytes+readBufferSizeBytes))
-		partNum := int32(1)
-		buf := make([]byte, readBufferSizeBytes)
-
-		for {
-			n, readErr := r.Read(buf)
-			if readErr == io.EOF {
-				closing = true
-			} else if readErr != nil {
-				readChan <- readErr
-				return
-			}
-
-			_, _ = currPart.Write(buf[:n])
-			if closing || currPart.Len() >= targetPartSizeBytes {
-				part := make([]byte, currPart.Len())
-				copy(part, currPart.Bytes())
-				currPart.Truncate(0)
-
-				wg.Add(1)
-				go uploadPart(&wg, part, partNum)
-				partNum++
-			}
-
-			if closing {
-				return
-			}
-		}
-	}()
-
-	results := make([]uploadResult, 0, 64)
-
-outer:
-	for {
-		select {
-		case readErr := <-readChan:
-			if readErr != io.EOF {
-				return 0, fmt.Errorf("reader error: %v", readErr)
-			}
-		case uploadResult := <-uploadResultChan:
-			results = append(results, uploadResult)
-		case uploadErr := <-uploadErrorChan:
-			return 0, fmt.Errorf("error while uploading part: %v", uploadErr)
-		case <-ctx.Done():
-			return 0, ctx.Err()
-		case <-wgDone:
-			break outer
-		}
-	}
-
-	if len(results) == 0 {
-		return 0, errors.New("no parts available to upload")
-	}
-
-	completedParts := make([]types.CompletedPart, 0, 64)
-	var uploadedBytes int64
-	for _, result := range results {
-		completedParts = append(completedParts, result.completedPart)
-		uploadedBytes += result.size
-	}
-
-	// the parts may be out of order, especially with slow network conditions:
-	sort.Slice(completedParts, func(i, j int) bool {
-		return completedParts[i].PartNumber < completedParts[j].PartNumber
-	})
-
-	completeInput := s3.CompleteMultipartUploadInput{
-		Bucket:          aws.String(bucket),
-		Key:             aws.String(key),
-		UploadId:        output.UploadId,
-		MultipartUpload: &types.CompletedMultipartUpload{Parts: completedParts},
-	}
-
-	if _, err = u.s3.CompleteMultipartUpload(ctx, &completeInput); err != nil {
-		return 0, fmt.Errorf("error completing upload: %v", err)
-	}
-
-	u.logger.With("key", key, "numParts", len(completedParts), "len", uploadedBytes).Debug("completed upload")
-	uploaded = true
-
-	return uploadedBytes, nil
-}

backend/server/server.go

@@ -64,7 +64,8 @@ type Options struct {
 	Timeout       time.Duration
 	Store         media.Store
 	YoutubeClient media.YoutubeClient
-	S3API         media.S3API
+	FileStore     media.FileStore
+	Logger        *zap.Logger
 }
 
 // mediaSetServiceController implements gRPC controller for MediaSetService
@@ -226,32 +227,26 @@ func (c *mediaSetServiceController) GetVideoThumbnail(ctx context.Context, reque
 }
 
 func Start(options Options) error {
-	logger, err := buildLogger(options.Config)
-	if err != nil {
-		return fmt.Errorf("error building logger: %v", err)
-	}
-	defer logger.Sync()
-
 	fetchMediaSetService := media.NewMediaSetService(
 		options.Store,
 		options.YoutubeClient,
-		options.S3API,
+		options.FileStore,
 		options.Config,
-		logger,
+		options.Logger.Sugar().Named("mediaSetService"),
 	)
 
-	grpcServer, err := buildGRPCServer(options.Config, logger)
+	grpcServer, err := buildGRPCServer(options.Config, options.Logger)
 	if err != nil {
 		return fmt.Errorf("error building server: %v", err)
 	}
 
-	mediaSetController := &mediaSetServiceController{mediaSetService: fetchMediaSetService, logger: logger.Sugar().Named("controller")}
+	mediaSetController := &mediaSetServiceController{mediaSetService: fetchMediaSetService, logger: options.Logger.Sugar().Named("controller")}
 	pbmediaset.RegisterMediaSetServiceServer(grpcServer, mediaSetController)
 
 	// TODO: configure CORS
 	grpcWebServer := grpcweb.WrapServer(grpcServer, grpcweb.WithOriginFunc(func(string) bool { return true }))
 
-	log := logger.Sugar()
+	log := options.Logger.Sugar()
 	fileHandler := http.NotFoundHandler()
 	if options.Config.AssetsHTTPBasePath != "" {
 		log.With("basePath", options.Config.AssetsHTTPBasePath).Info("Configured to serve assets over HTTP")
@@ -280,13 +275,6 @@ func Start(options Options) error {
 	return httpServer.ListenAndServe()
 }
 
-func buildLogger(c config.Config) (*zap.Logger, error) {
-	if c.Environment == config.EnvProduction {
-		return zap.NewProduction()
-	}
-	return zap.NewDevelopment()
-}
-
 func buildGRPCServer(c config.Config, logger *zap.Logger) (*grpc.Server, error) {
 	unaryInterceptors := []grpc.UnaryServerInterceptor{
 		grpczap.UnaryServerInterceptor(logger),