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<?php
/**
* Entry token abstraction -- used for allowing cf_ee edits/ entry editor edits
*
* @package Caldera_Forms
* @author Josh Pollock <[email protected]>
* @license GPL-2.0+
* @link
* @copyright 2017 CalderaWP LLC
*/
class Caldera_Forms_Entry_Token {
/**
* Check a token
*
* @since 1.5.0.6
*
* @param string $test_token Encoded token to test
* @param string $entry_id ID of entry to test
* @param string $form_id ID of form to test
*
* @return bool|WP_Error
*/
public static function verify_token( $test_token, $entry_id, $form_id ){
$compare_token = self::make_test_token( $entry_id, Caldera_Forms_Forms::get_form( $form_id ) );
if( ! hash_equals( $compare_token, $test_token ) ){
return new WP_Error( 'error', __( "Permission denied.", 'caldera-forms' ) );
}
return true;
}
/**
* Create entry edit token for stored entry
*
* @since 1.5.0.6
*
* @param string $entry_id ID of entry
* @param array $form Form config
*
* @return string
*/
public static function create_entry_token( $entry_id, $form ){
$details = Caldera_Forms::get_entry_detail( $entry_id, $form );
return self::make_token( $entry_id, $form[ 'ID' ], $details[ 'datestamp' ], $details[ 'user_id' ] );
}
/**
* Check a token vs a what it should be.
*
* @since 1.5.0.6
*
* @param string $test_token Encoded token to test
* @param string $compare_token Token to compare against
*
* @return bool|WP_Error
*/
protected static function check_token( $test_token, $compare_token ){
if( ! hash_equals( $compare_token, $test_token ) ){
return new WP_Error( 'error', __( "Permission denied.", 'caldera-forms' ) );
}
return true;
}
/**
* Make token to test against
*
* Uses current user, not saved user
*
* @since 1.5.0.6
*
* @param int $entry_id ID of entry
* @param array $form Form config
*
* @return string
*/
protected static function make_test_token( $entry_id, $form ){
$details = Caldera_Forms::get_entry_detail( $entry_id, $form );
return self::make_token( $entry_id, $form[ 'ID' ], $details[ 'datestamp' ], get_current_user_id() );
}
/**
* Make entry token
*
* @since 1.5.0.6
*
* @param int $entry_id ID of entry ID of stored entry
* @param string $form_id Form ID
* @param string $datestamp Datestamp of entry
* @param int $user_id ID of user who created entry
*
* @return string
*/
protected static function make_token( $entry_id, $form_id, $datestamp, $user_id ){
$token_array = array(
'id' => (int) $entry_id,
'datestamp' => $datestamp,
'user_id' => (int) $user_id,
'form_id' => $form_id
);
return sha1( json_encode( $token_array ) );
}
}