cartflows / modules / content-generation / class-cartflows-ai-auth.php

class-cartflows-ai-auth.php in CartFlows – Funnel Builder & Checkout Plugin for WooCommerce 3.1.4, at modules/content-generation/class-cartflows-ai-auth.php

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1	<?php
2	/**
3	* AI Authentication.
4	*
5	* @package cartflows
6	*/
7
8	// Exit if accessed directly.
9	if ( ! defined( 'ABSPATH' ) ) {
10	exit;
11	}
12	/**
13	* AI Authentication.
14	*
15	* @since x.x.x
16	*/
17	class Cartflows_Ai_Auth {
18
19	/**
20	* Member Variable
21	*
22	* @var object instance
23	*/
24	private static $instance;
25
26	/**
27	* Encryption key.
28	*
29	* @since x.x.x
30	* @var string
31	*/
32	public $key;
33
34	/**
35	* Initiator
36	*/
37	public static function get_instance() {
38
39	if ( ! isset( self::$instance ) ) {
40	self::$instance = new self();
41	}
42
43	return self::$instance;
44	}
45
46	/**
47	* Constructor
48	*/
49	public function __construct() {}
50
51	/**
52	* Get Auth URL.
53	*
54	* @since x.x.x
55	* @return string\|WP_Error
56	*/
57	public function get_auth_url() {
58	// Generate a random key of 16 characters.
59	$this->key = wp_generate_password( 16, false );
60
61	// Prepare the token data.
62	$token_data = array(
63	'redirect-back' => admin_url( 'admin.php?page=cartflows' ),
64	'key' => $this->key,
65	'site-url' => site_url(),
66	'nonce' => wp_create_nonce( 'cartflows_ai_auth_nonce' ),
67	);
68
69	$encoded_token_data = wp_json_encode( $token_data );
70
71	if ( empty( $encoded_token_data ) ) {
72	return new WP_Error( 'failed_to_encode_token_data', __( 'Failed to encode the token data.', 'cartflows' ) );
73	}
74
75	return CARTFLOWS_SERVER_URL . 'auth/?token=' . base64_encode( $encoded_token_data );
76	}
77
78	/**
79	* Get Auth status.
80	*
81	* @since x.x.x
82	* @return bool
83	*/
84	public function get_auth_status() {
85	$auth_status = get_option( 'cartflows_auth', false );
86	return ! empty( $auth_status );
87	}
88
89	/**
90	* Save Auth.
91	*
92	* @since x.x.x
93	* @param string $data Data to save.
94	* @param string $key Key to use for encryption.
95	* @param string $method Encryption method. Default is AES-256-CBC.
96	* @return bool\|WP_Error
97	*/
98	public function save_auth( $data, $key, $method = 'AES-256-CBC' ) {
99
100	// Decode the data and split IV and encrypted data.
101	$decoded_data = base64_decode( $data ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode
102
103	// if the data is not base64 encoded then return false.
104	if ( empty( $decoded_data ) ) {
105	return new WP_Error( 'failed_to_decode', __( 'Failed to decode the access key.', 'cartflows' ) );
106	}
107
108	// split the key and encrypted data.
109	list( $key, $encrypted ) = explode( '::', $decoded_data, 2 );
110
111	// Decrypt the data using the key.
112	$decrypted = openssl_decrypt( $encrypted, $method, $key, 0, $key );
113
114	// if the decryption returns false then send error.
115	if ( empty( $decrypted ) ) {
116	return new WP_Error( 'failed_to_decrypt', __( 'Failed to decrypt the access key.', 'cartflows' ) );
117	}
118
119	// json decode the decrypted data.
120	$decrypted_data_array = json_decode( $decrypted, true );
121
122	if ( ! is_array( $decrypted_data_array ) \|\| empty( $decrypted_data_array ) ) {
123	return new WP_Error( 'failed_to_json_decode', __( 'Failed to json decode the decrypted data.', 'cartflows' ) );
124	}
125
126	// verify the nonce that comes in $encrypted_email_array.
127	if ( ! empty( $decrypted_data_array['nonce'] ) && ! wp_verify_nonce( $decrypted_data_array['nonce'], 'cartflows_ai_auth_nonce' ) ) {
128	return new WP_Error( 'nonce_verification_failed', __( 'Nonce verification failed.', 'cartflows' ) );
129	}
130
131	// check if the user email is present in the decrypted data.
132	if ( empty( $decrypted_data_array['user_email'] ) ) {
133	return new WP_Error( 'no_user_email', __( 'No user email found in the decrypted data.', 'cartflows' ) );
134	}
135
136	// Extract is_subscribed value if present.
137	$is_subscribed = false;
138	if ( isset( $decrypted_data_array['is_subscribed'] ) ) {
139	// Convert string 'true'/'false' to boolean if needed.
140	if ( is_string( $decrypted_data_array['is_subscribed'] ) ) {
141	$is_subscribed = 'true' === $decrypted_data_array['is_subscribed'];
142	} else {
143	$is_subscribed = (bool) $decrypted_data_array['is_subscribed'];
144	}
145
146	// Update the analytics option based on the preference.
147	// Set 'yes' if opted in, empty string if not.
148	$enable_contribution = $is_subscribed ? 'yes' : '';
149	update_option( 'cartflows_usage_optin', $enable_contribution );
150
151	// Remove is_subscribed from the decrypted data.
152	unset( $decrypted_data_array['is_subscribed'] );
153	}
154
155	// remove the nonce from the decrypted data before saving it to the options.
156	unset( $decrypted_data_array['nonce'] );
157
158	// save the user email to the options.
159	update_option( 'cartflows_auth', $decrypted_data_array );
160
161	return true;
162	}
163
164	}
165
166	/**
167	* Kicking this off by calling 'get_instance()' method
168	*/
169	Cartflows_Ai_Auth::get_instance();
170