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<?php

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/**

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* Newsletters class

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* @package PUM

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if ( ! defined( 'ABSPATH' ) ) {

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exit;

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}

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class PUM_Newsletters {

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/**

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* @var WP_Error

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public static $errors;

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public static $disabled = false;

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public static function init() {

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if ( doing_action( 'plugins_loaded' ) || ! did_action( 'plugins_loaded' ) ) {

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add_action( 'plugins_loaded', [ __CLASS__, 'delayed_init' ], 11 );

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} else {

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self::delayed_init();

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}

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}

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public static function delayed_init() {

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// TODO Once PUM-Aweber has been updated properly for a few months remove these if checks.

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// TODO Consider adding notice to update aweber.

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self::$disabled = in_array(

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true,

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[

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class_exists( 'PUM_Aweber_Integration' ) && defined( 'PUM_AWEBER_INTEGRATION_VER' ) && version_compare( PUM_AWEBER_INTEGRATION_VER, '1.1.0', '<' ),

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class_exists( 'PUM_MailChimp_Integration' ) && defined( 'PUM_MAILCHIMP_INTEGRATION_VER' ) && PUM_MAILCHIMP_INTEGRATION_VER,

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class_exists( 'PUM_MCI' ) && version_compare( PUM_MCI::$VER, '1.3.0', '<' ),

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]

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);

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// Checks for single very specific versions.

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if ( self::$disabled ) {

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return;

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}

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require_once Popup_Maker::$DIR . 'includes/functions/newsletter.php';

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do_action( 'pum_newsletter_init' );

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PUM_Shortcode_Subscribe::init();

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add_action( 'wp_ajax_pum_sub_form', [ __CLASS__, 'ajax_request' ] );

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add_action( 'wp_ajax_nopriv_pum_sub_form', [ __CLASS__, 'ajax_request' ] );

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add_filter( 'pum_sub_form_sanitization', [ __CLASS__, 'sanitization' ], 0 );

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add_filter( 'pum_sub_form_validation', [ __CLASS__, 'validation' ], 0, 2 );

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add_action( 'pum_sub_form_success', [ __CLASS__, 'record_submission' ], 0 );

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}

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/**

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* Submits the form using ajax

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public static function ajax_request() {

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self::$errors = new WP_Error();

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$values = isset( $_REQUEST['values'] ) ? $_REQUEST['values'] : [];

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if ( empty( $values['popup_id'] ) && ! empty( $values['pum_form_popup_id'] ) ) {

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$values['popup_id'] = absint( $values['pum_form_popup_id'] );

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}

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// Clean JSON passed values.

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$values = PUM_Utils_Array::fix_json_boolean_values( $values );

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do_action( 'pum_sub_form_ajax_override', $values );

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// Allow sanitization & manipulation of form values prior to usage.

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$values = apply_filters( 'pum_sub_form_sanitization', $values );

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// Allow validation of the data.

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self::$errors = apply_filters( 'pum_sub_form_validation', self::$errors, $values );

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if ( self::$errors->get_error_code() ) {

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self::send_errors( self::$errors );

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}

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$response = [];

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// Process the submission and pass the $response array as a reference variable so data can be added..

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do_action_ref_array( 'pum_sub_form_submission', [ $values, &$response, &self::$errors ] );

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$error_code = self::$errors->get_error_code();

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$already_subscribed = 'already_subscribed' === $error_code;

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$success = empty( $error_code ) || $already_subscribed ? true : false;

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if ( ! $success && ! $already_subscribed ) {

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do_action( 'pum_sub_form_errors', $values, self::$errors );

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switch ( $error_code ) {

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case 'api_errors':

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$response['message'] = pum_get_newsletter_provider_message( $values['provider'], 'error', $values );

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break;

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}

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self::send_errors( self::$errors, $response );

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} else {

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do_action( 'pum_sub_form_success', $values );

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if ( $already_subscribed ) {

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$response['already_subscribed'] = true;

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}

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$response['message'] = pum_get_newsletter_provider_message( $values['provider'], $already_subscribed ? 'already_subscribed' : 'success', $values );

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self::send_success( $response );

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}

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// Don't let it keep going.

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die();

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}

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/**

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* Process and send error messages.

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* Optionally pass extra data to send back to front end.

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* @param $errors WP_Error

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* @param array $extra_response_args

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public static function send_errors( WP_Error $errors, $extra_response_args = [] ) {

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if ( ! $errors || ! is_wp_error( $errors ) ) {

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$errors = self::$errors;

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}

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$response = array_merge(

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$extra_response_args,

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[

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'errors' => self::prepare_errors( $errors ),

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]

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);

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wp_send_json_error( $response );

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die();

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}

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/**

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* Send a success response with passed data.

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* @param array|mixed $response

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public static function send_success( $response = [] ) {

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wp_send_json_success( array_filter( $response ) );

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die;

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}

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/**

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* Prepare errors for response.

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* @param WP_Error $_errors

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* @return array

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public static function prepare_errors( WP_Error $_errors ) {

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if ( ! $_errors || ! is_wp_error( $_errors ) ) {

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$_errors = self::$errors;

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}

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$errors = [];

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foreach ( $_errors->get_error_codes() as $code ) {

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$errors[] = [

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'code' => $code,

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'field' => $_errors->get_error_data( $code ),

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'message' => $_errors->get_error_message( $code ),

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];

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}

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return $errors;

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}

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/**

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* Records the submission into a database table.

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* @param array $values

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public static function record_submission( $values = [] ) {

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$data = wp_parse_args(

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$values,

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[

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'uuid' => self::uuid(),

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'user_id' => get_current_user_id(),

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'popup_id' => 0,

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'email_hash' => '',

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'email' => '',

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'name' => '',

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'fname' => '',

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'lname' => '',

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'consent' => 'no',

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'consent_args' => '',

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]

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);

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$subscriber_id = PUM_DB_Subscribers::instance()->insert( $data );

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if ( is_user_logged_in() && $subscriber_id ) {

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update_user_meta( get_current_user_id(), 'pum_subscribed', true );

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}

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}

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/**

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* Return the current or new uuid.

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* @return mixed|string

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public static function uuid() {

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static $uuid;

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if ( ! isset( $uuid ) ) {

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$uuid = PUM_GA::get_uuid();

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}

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return $uuid;

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}

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/**

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* Provides basic field sanitization.

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* @param array $values

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* @return array

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public static function sanitization( $values = [] ) {

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$values = wp_parse_args(

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$values,

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[

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'provider' => pum_get_option( 'newsletter_default_provider', 'none' ),

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'consent' => 'no',

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'consent_args' => [],

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]

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);

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$values['provider'] = sanitize_text_field( $values['provider'] );

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$values['provider'] = sanitize_text_field( $values['provider'] );

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if ( ! empty( $values['consent_args'] ) && is_string( $values['consent_args'] ) ) {

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if ( strpos( $values['consent_args'], '\"' ) >= 0 ) {

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$values['consent_args'] = stripslashes( $values['consent_args'] );

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}

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$values['consent_args'] = (array) json_decode( $values['consent_args'] );

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}

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$values['consent_args'] = wp_parse_args(

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$values['consent_args'],

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[

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'enabled' => 'no',

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'required' => false,

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'text' => '',

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]

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);

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// Anonymize the data if they didn't consent and privacy is enabled.

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if ( 'yes' === $values['consent_args']['enabled'] && ! $values['consent_args']['required'] && 'no' === $values['consent'] ) {

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$values['uuid'] = '';

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$values['user_id'] = 0;

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$values['name'] = '';

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$values['fname'] = '';

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$values['lname'] = '';

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$values['email'] = function_exists( 'wp_privacy_anonymize_data' ) ? wp_privacy_anonymize_data( 'email', $values['email'] ) : 'deleted@site.invalid';

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}

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// Split name into fname & lname or vice versa.

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if ( isset( $values['name'] ) ) {

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$values['name'] = trim( sanitize_text_field( $values['name'] ) );

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// Creates last name

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$name = explode( ' ', $values['name'] );

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if ( ! isset( $name[1] ) ) {

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$name[1] = '';

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}

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$values['fname'] = trim( $name[0] );

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$values['lname'] = trim( $name[1] );

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} else {

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$values['fname'] = isset( $values['fname'] ) ? sanitize_text_field( $values['fname'] ) : '';

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$values['lname'] = isset( $values['lname'] ) ? sanitize_text_field( $values['lname'] ) : '';

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$values['name'] = trim( $values['fname'] . ' ' . $values['lname'] );

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}

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$values['email'] = sanitize_email( $values['email'] );

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$values['email_hash'] = md5( $values['email'] );

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return $values;

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}

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/**

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* Provides basic field validation.

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* @param WP_Error $errors

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* @param array $values

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* @return WP_Error

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public static function validation( $errors, $values = [] ) {

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if ( ! isset( $values['email'] ) || empty( $values['email'] ) ) {

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$errors->add( 'empty_email', pum_get_newsletter_provider_message( $values['provider'], 'empty_email', $values ), 'email' );

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} elseif ( ! is_email( $values['email'] ) ) {

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$errors->add( 'invalid_email', pum_get_newsletter_provider_message( $values['provider'], 'invalid_email', $values ), 'email' );

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}

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if ( 'yes' === $values['consent_args']['enabled'] && $values['consent_args']['required'] && 'no' === $values['consent'] ) {

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$errors->add( 'consent_required', pum_get_newsletter_provider_message( $values['provider'], 'consent_required', $values ), 'consent' );

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}

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return $errors;

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}

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}

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