update

wp-content/plugins/password-protected/includes/transient-functions.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * Transient functions.
+ *
+ * @usage Transient functions to get, set and delete transient values
+ * @description Use transient instead of cookies.
+ * @package Password Protected
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+if ( ! function_exists( 'pp_get_transient_identifier' ) ) {
+	/**
+	 * Get identifier
+	 *
+	 * @param string $key transient key.
+	 *
+	 * @usage function to get unique transient key
+	 * @return string: transient key
+	 */
+	function pp_get_transient_identifier( $key = '' ) {
+		return $key . '_' . pp_get_ip_address();
+	}
+}
+
+if ( ! function_exists( 'pp_get_ip_address' ) ) {
+	/**
+	 * Get IP Address
+	 *
+	 * @usage function to get ip of current user
+	 * @return string: ip
+	 */
+	function pp_get_ip_address() {
+		foreach ( array( 'HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR' ) as $key ) {
+			if ( array_key_exists( $key, $_SERVER ) === true ) {
+				foreach ( explode(',', $_SERVER[ $key ] ) as $ip ) {
+					$ip = trim( $ip );
+
+					if ( filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE ) !== false ){
+						return $ip;
+					}
+				}
+			}
+		}
+	}
+}
+
+if ( ! function_exists( 'pp_get_transient' ) ) {
+	/**
+	 * Get Transient
+	 *
+	 * @usage function to get transient value by key
+	 *
+	 * @param string $key transient key.
+	 *
+	 * @return bool|mixed
+	 */
+	function pp_get_transient( $key = '' ) {
+		$transient = pp_get_transient_identifier( $key );
+		$value = get_transient( $transient );
+		if ( ! empty( $value ) ) {
+			return $value;
+		} else {
+			return false;
+		}
+	}
+}
+
+if ( ! function_exists( 'pp_set_transient' ) ) {
+	/**
+	 * Set Transient
+	 *
+	 * @param string $key transient key.
+	 * @param string $value transient value.
+	 * @param int    $duration transient duration.
+	 *
+	 * @usage function to set transient value by key, value and duration
+	 */
+	function pp_set_transient( $key = '', $value = '', $duration = HOUR_IN_SECONDS ) {
+		$transient = pp_get_transient_identifier( $key );
+		set_transient( $transient, $value, $duration );
+	}
+}
+
+if ( ! function_exists( 'pp_delete_transient' ) ) {
+	/**
+	 * Delete transient
+	 *
+	 * @param string $key transient key.
+	 *
+	 * @usage function to delete transient value by key
+	 */
+	function pp_delete_transient( $key = '' ) {
+		$transient = pp_get_transient_identifier( $key );
+		delete_transient( $transient );
+	}
+}