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package upload
import (
"context"
"fmt"
"io"
"mime/multipart"
"net/http"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/secret"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/upload/destination"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/upload/exif"
)
type SavedFileTracker struct {
Request *http.Request
rewrittenFields map[string]string
}
func (s *SavedFileTracker) Track(fieldName string, localPath string) {
if s.rewrittenFields == nil {
s.rewrittenFields = make(map[string]string)
}
s.rewrittenFields[fieldName] = localPath
}
func (s *SavedFileTracker) Count() int {
return len(s.rewrittenFields)
}
func (s *SavedFileTracker) ProcessFile(_ context.Context, fieldName string, file *destination.FileHandler, _ *multipart.Writer) error {
if _, ok := s.rewrittenFields[fieldName]; ok {
return fmt.Errorf("the %v field has already been processed", fieldName)
}
s.Track(fieldName, file.LocalPath)
return nil
}
func (s *SavedFileTracker) ProcessField(_ context.Context, _ string, _ *multipart.Writer) error {
return nil
}
func (s *SavedFileTracker) Finalize(_ context.Context) error {
if s.rewrittenFields == nil {
return nil
}
claims := MultipartClaims{RewrittenFields: s.rewrittenFields, RegisteredClaims: secret.DefaultClaims}
tokenString, err := secret.JWTTokenString(claims)
if err != nil {
return fmt.Errorf("savedFileTracker.Finalize: %v", err)
}
s.Request.Header.Set(RewrittenFieldsHeader, tokenString)
return nil
}
func (s *SavedFileTracker) Name() string { return "accelerate" }
func (*SavedFileTracker) TransformContents(ctx context.Context, filename string, r io.Reader) (io.ReadCloser, error) {
if imageType := exif.FileTypeFromSuffix(filename); imageType != exif.TypeUnknown {
return handleExifUpload(ctx, r, filename, imageType)
}
return io.NopCloser(r), nil
}
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