file_add_form_submit in core/modules/file/file.pages.inc
Submit handler for the add file form.
file_add_upload_step_scheme in core/modules/file/file.pages.inc
Generate form fields for the third step in the add file wizard.
file_field_settings_form in core/modules/file/file.field.inc
Implements hook_field_settings_form().
file_file_is_readable in core/modules/file/file.module
Check if a file entity is readable or not.
file_get_public_and_private_stream_wrapper_names in core/modules/file/file.module
file_get_stream_wrapper in core/modules/file/file.module
Return a specific stream wrapper's registry information.
file_is_local in core/modules/file/file.module
Check if a file entity is considered local or not.
file_is_writeable in core/modules/file/file.module
Check if a file entity is considered writeable or not.
file_manage_form in core/modules/file/file.pages.inc
Page callback: Form constructor for the file manage form.
file_stream_wrapper_get_class in core/includes/file.inc
Returns the stream wrapper class name for a given scheme.
filter_editor_file_upload_settings_form in core/modules/filter/filter.admin.inc
Subform constructor to configure the text editor's file upload settings.
filter_editor_image_upload_settings_form in core/modules/filter/filter.admin.inc
Subform constructor to configure the text editor's image upload settings.
image_field_settings_form in core/modules/image/image.field.inc
Implements hook_field_settings_form().
image_gd_save in core/modules/system/image.gd.inc
GD helper to write an image resource to a destination file.
image_style_flush in core/modules/image/image.module
Flush cached media for a style.
system_file_system_settings in core/modules/system/system.admin.inc
Form builder; Configure the site file handling.
system_transliteration_retroactive_submit in core/modules/system/system.admin.inc
Form submit function; retroactively transliterates existing file names.
_backdrop_bootstrap_full in core/includes/common.inc