gform_require_login_pre_download

Description

By default the real location of an uploaded file is hidden. The download URL will be generated with a security token to prevent guessing or enumeration attacks to discover the location of other files. The gform_require_login_pre_download filter can be used to require the user be logged in before the download URL will allow access to the file.

Usage

The following would apply to all forms.

add_filter( 'gform_require_login_pre_download', 'your_function_name', 10, 3 );

Examples

1. Require login for all forms

add_filter( 'gform_require_login_pre_download', '__return_true' );

2. Require login for specific form and field

add_filter( 'gform_require_login_pre_download', 'require_login_for_downloads', 10, 3 );

function require_login_for_downloads( $require_login, $form_id, $field_id ){

  	// Update values below to match your form and field id's
	if  ( $form_id == '97' && $field_id == '2' ) {

		$require_login = true;
		
	}

	return $require_login;
}

3. Require login for all forms and redirect to login page

add_filter( 'gform_require_login_pre_download', function( $require_login ) {
	$require_login = true;
	if ( ! is_user_logged_in() ) {
		auth_redirect();
	}

	return $require_login;
} );

Placement

This code should be placed in the functions.php file of your active theme.

Since

This filter was added in Gravity Forms 2.2.3.16.

Source Code

This filter is located in GF_Download::validate_download() in includes/class-gf-download.php.