3 files changed, 12 insertions, 8 deletions
diff --git a/internal/processing/account/update.go b/internal/processing/account/update.go
index 5a0a3e5a1..758cc6600 100644
--- a/internal/processing/account/update.go
+++ b/internal/processing/account/update.go
@@ -140,8 +140,9 @@ func (p *processor) UpdateAvatar(ctx context.Context, avatar *multipart.FileHead
 		return nil, fmt.Errorf("UpdateAvatar: avatar with size %d exceeded max image size of %d bytes", avatar.Size, maxImageSize)
 	}
 
-	dataFunc := func(ctx context.Context) (io.Reader, error) {
-		return avatar.Open()
+	dataFunc := func(ctx context.Context) (io.Reader, int, error) {
+		f, err := avatar.Open()
+		return f, int(avatar.Size), err
 	}
 
 	isAvatar := true
@@ -166,8 +167,9 @@ func (p *processor) UpdateHeader(ctx context.Context, header *multipart.FileHead
 		return nil, fmt.Errorf("UpdateHeader: header with size %d exceeded max image size of %d bytes", header.Size, maxImageSize)
 	}
 
-	dataFunc := func(ctx context.Context) (io.Reader, error) {
-		return header.Open()
+	dataFunc := func(ctx context.Context) (io.Reader, int, error) {
+		f, err := header.Open()
+		return f, int(header.Size), err
 	}
 
 	isHeader := true
diff --git a/internal/processing/admin/emoji.go b/internal/processing/admin/emoji.go
index e0068858b..bb9f4ecb5 100644
--- a/internal/processing/admin/emoji.go
+++ b/internal/processing/admin/emoji.go
@@ -36,8 +36,9 @@ func (p *processor) EmojiCreate(ctx context.Context, account *gtsmodel.Account,
 		return nil, gtserror.NewErrorNotAuthorized(fmt.Errorf("user %s not an admin", user.ID), "user is not an admin")
 	}
 
-	data := func(innerCtx context.Context) (io.Reader, error) {
-		return form.Image.Open()
+	data := func(innerCtx context.Context) (io.Reader, int, error) {
+		f, err := form.Image.Open()
+		return f, int(form.Image.Size), err
 	}
 
 	emojiID, err := id.NewRandomULID()
diff --git a/internal/processing/media/create.go b/internal/processing/media/create.go
index 0fda4c27b..4047278eb 100644
--- a/internal/processing/media/create.go
+++ b/internal/processing/media/create.go
@@ -29,8 +29,9 @@ import (
 )
 
 func (p *processor) Create(ctx context.Context, account *gtsmodel.Account, form *apimodel.AttachmentRequest) (*apimodel.Attachment, error) {
-	data := func(innerCtx context.Context) (io.Reader, error) {
-		return form.File.Open()
+	data := func(innerCtx context.Context) (io.Reader, int, error) {
+		f, err := form.File.Open()
+		return f, int(form.File.Size), err
 	}
 
 	focusX, focusY, err := parseFocus(form.Focus)