Setting bot accounts image to specific image. (#10497)

* Setting bot accounts image to specific image.

* A couple more places to change default.

app/user.go

@@ -749,7 +749,7 @@ func getFont(initialFont string) (*truetype.Font, error) {
 
 func (a *App) GetProfileImage(user *model.User) ([]byte, bool, *model.AppError) {
 	if len(*a.Config().FileSettings.DriverName) == 0 {
-		img, appErr := CreateProfileImage(user.Username, user.Id, *a.Config().FileSettings.InitialFont)
+		img, appErr := a.GetDefaultProfileImage(user)
 		if appErr != nil {
 			return nil, false, appErr
 		}
@@ -760,7 +760,7 @@ func (a *App) GetProfileImage(user *model.User) ([]byte, bool, *model.AppError)
 
 	data, err := a.ReadFile(path)
 	if err != nil {
-		img, appErr := CreateProfileImage(user.Username, user.Id, *a.Config().FileSettings.InitialFont)
+		img, appErr := a.GetDefaultProfileImage(user)
 		if appErr != nil {
 			return nil, false, appErr
 		}
@@ -777,7 +777,15 @@ func (a *App) GetProfileImage(user *model.User) ([]byte, bool, *model.AppError)
 }
 
 func (a *App) GetDefaultProfileImage(user *model.User) ([]byte, *model.AppError) {
-	img, appErr := CreateProfileImage(user.Username, user.Id, *a.Config().FileSettings.InitialFont)
+	var img []byte
+	var appErr *model.AppError
+
+	if user.IsBot {
+		img = model.BotDefaultImage
+		appErr = nil
+	} else {
+		img, appErr = CreateProfileImage(user.Username, user.Id, *a.Config().FileSettings.InitialFont)
+	}
 	if appErr != nil {
 		return nil, appErr
 	}
@@ -785,7 +793,7 @@ func (a *App) GetDefaultProfileImage(user *model.User) ([]byte, *model.AppError)
 }
 
 func (a *App) SetDefaultProfileImage(user *model.User) *model.AppError {
-	img, appErr := CreateProfileImage(user.Username, user.Id, *a.Config().FileSettings.InitialFont)
+	img, appErr := a.GetDefaultProfileImage(user)
 	if appErr != nil {
 		return appErr
 	}