<?php if ( ! defined( 'ABSPATH' ) ) exit;

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/**

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* Class NF_Action_Email

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*/

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final class NF_Actions_Email extends NF_Abstracts_Action

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{

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/**

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* @var string

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*/

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protected $_name = 'email';

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/**

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* @var array

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*/

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protected $_tags = array();

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/**

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* @var string

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*/

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protected $_timing = 'late';

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/**

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* @var int

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*/

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protected $_priority = 10;

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/**

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* Constructor

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*/

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public function __construct()

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{

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parent::__construct();

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$this->_nicename = esc_html__( 'Email', 'ninja-forms' );

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$settings = Ninja_Forms::config( 'ActionEmailSettings' );

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$this->_settings = array_merge( $this->_settings, $settings );

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$this->_backwards_compatibility();

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}

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/*

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* PUBLIC METHODS

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*/

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public function process( $action_settings, $form_id, $data )

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{

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$action_settings = $this->sanitize_address_fields( $action_settings );

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$errors = $this->check_for_errors( $action_settings );

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$headers = $this->_get_headers( $action_settings );

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if ( has_filter( 'ninja_forms_get_fields_sorted' ) ) {

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$fields_by_key = array();

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foreach( $data[ 'fields' ] as $field ){

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if( is_null( $field ) ) continue;

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if( is_array( $field ) ){

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if( ! isset( $field[ 'key' ] ) ) continue;

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$key = $field[ 'key' ];

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} else {

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$key = $field->get_setting('key');

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}

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$fields_by_key[ $key ] = $field;

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}

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$data[ 'fields' ] = apply_filters( 'ninja_forms_get_fields_sorted', array(), $data[ 'fields' ], $fields_by_key, $form_id );

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}

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$attachments = $this->_get_attachments( $action_settings, $data );

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if( 'html' == $action_settings[ 'email_format' ] ) {

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$message = wpautop( $action_settings['email_message'] );

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} else {

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$message = $this->format_plain_text_message( $action_settings[ 'email_message_plain' ] );

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}

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$message = apply_filters( 'ninja_forms_action_email_message', $message, $data, $action_settings );

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try {

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/**

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* Hook into the email send to override functionality.

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* @return bool True if already sent. False to fallback to default behavior. Throw a new Exception if there is an error.

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*/

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if( ! $sent = apply_filters( 'ninja_forms_action_email_send', false, $action_settings, $message, $headers, $attachments ) ){

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$sent = wp_mail($action_settings['to'], strip_tags( $action_settings['email_subject'] ), $message, $headers, $attachments);

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}

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} catch ( Exception $e ){

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$sent = false;

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$errors[ 'email_not_sent' ] = $e->getMessage();

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}

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if( is_user_logged_in() && current_user_can( 'manage_options' ) ) {

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$data[ 'actions' ][ 'email' ][ 'to' ] = $action_settings[ 'to' ];

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$data[ 'actions' ][ 'email' ][ 'headers' ] = $headers;

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$data[ 'actions' ][ 'email' ][ 'attachments' ] = $attachments;

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}

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$data[ 'actions' ][ 'email' ][ 'sent' ] = $sent;

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// Only show errors to Administrators.

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if( $errors && current_user_can( 'manage_options' ) ){

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$data[ 'errors' ][ 'form' ] = $errors;

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}

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if ( ! empty( $attachments ) ) {

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$this->_drop_csv();

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}

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return $data;

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}

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/**

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* Sanitizes email address settings

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* @since 3.2.2

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*

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* @param array $action_settings

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* @return array

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*/

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protected function sanitize_address_fields( $action_settings )

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{

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// Build a look array to compare our email address settings to.

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$email_address_settings = array( 'to', 'from_address', 'reply_to', 'cc', 'bcc' );

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// Loop over the look up values.

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foreach( $email_address_settings as $setting ) {

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// If the loop up values are not set in the action settings continue.

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if ( ! isset( $action_settings[ $setting ] ) ) continue;

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// If action settings do not match the look up values continue.

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if ( ! $action_settings[ $setting ] ) continue;

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// This is the array that will contain the sanitized email address values.

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$sanitized_array = array();

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/*

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* Checks to see action settings is array,

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* if not explodes to comma delimited array.

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*/

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if( is_array( $action_settings[ $setting ] ) ) {

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$email_addresses = $action_settings[ $setting ];

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} else {

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$email_addresses = explode( ',', $action_settings[ $setting ] );

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}

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// Loop over our email addresses.

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foreach( $email_addresses as $email ) {

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// Updated to trim values in case there is a value with spaces/tabs/etc to remove whitespace

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$email = trim( $email );

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if ( empty( $email ) ) continue;

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// Build our array of the email addresses.

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$sanitized_array[] = $email;

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}

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// Sanitized our array of settings.

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$action_settings[ $setting ] = implode( ',' ,$sanitized_array );

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}

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return $action_settings;

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}

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protected function check_for_errors( $action_settings )

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{

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$errors = array();

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$email_address_settings = array( 'to', 'from_address', 'reply_to', 'cc', 'bcc' );

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foreach( $email_address_settings as $setting ){

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if( ! isset( $action_settings[ $setting ] ) ) continue;

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if( ! $action_settings[ $setting ] ) continue;

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$email_addresses = is_array( $action_settings[ $setting ] ) ? $action_settings[ $setting ] : explode( ',', $action_settings[ $setting ] );

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foreach( (array) $email_addresses as $email ){

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$email = trim( $email );

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if ( false !== strpos( $email, '<' ) && false !== strpos( $email, '>' ) ) {

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preg_match('/(?:<)([^>]*)(?:>)/', $email, $email);

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$email = $email[ 1 ];

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}

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if( ! is_email( $email ) ) {

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$errors[ 'invalid_email' ] = sprintf( esc_html__( 'Your email action "%s" has an invalid value for the "%s" setting. Please check this setting and try again.', 'ninja-forms'), $action_settings[ 'label' ], $setting );

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}

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}

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}

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return $errors;

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}

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private function _get_headers( $settings )

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{

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$headers = array();

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$headers[] = 'Content-Type: text/' . $settings[ 'email_format' ];

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$headers[] = 'charset=UTF-8';

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$headers[] = 'X-Ninja-Forms:ninja-forms'; // Flag for transactional email.

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$headers[] = $this->_format_from( $settings );

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$headers = array_merge( $headers, $this->_format_recipients( $settings ) );

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return $headers;

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}

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private function _get_attachments( $settings, $data )

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{

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$attachments = array();

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if( isset( $settings[ 'attach_csv' ] ) && 1 == $settings[ 'attach_csv' ] ){

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$attachments[] = $this->_create_csv( $data[ 'fields' ] );

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}

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if( ! isset( $settings[ 'id' ] ) ) $settings[ 'id' ] = '';

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// Allow admins to attach files from media library

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if (isset($settings['file_attachment']) && 0 < strlen($settings['file_attachment'])) {

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$file_path = '';

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$media_id = attachment_url_to_postid($settings['file_attachment']);

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if($media_id !== 0) {

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$file_path = get_attached_file($media_id);

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if (0 < strlen($file_path)) {

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$attachments[] = $file_path;

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}

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}

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}

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$attachments = apply_filters( 'ninja_forms_action_email_attachments', $attachments, $data, $settings );

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return $attachments;

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}

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private function _format_from( $settings )

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{

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$from_name = get_bloginfo( 'name', 'raw' );

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$from_name = apply_filters( 'ninja_forms_action_email_from_name', $from_name );

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$from_name = ( $settings[ 'from_name' ] ) ? $settings[ 'from_name' ] : $from_name;

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$from_address = get_bloginfo( 'admin_email' );

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$from_address = apply_filters( 'ninja_forms_action_email_from_address', $from_address );

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$from_address = ( $settings[ 'from_address' ] ) ? $settings[ 'from_address' ] : $from_address;

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return $this->_format_recipient( 'from', $from_address, $from_name );

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}

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private function _format_recipients( $settings )

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{

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$headers = array();

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$recipient_settings = array(

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'Cc' => $settings[ 'cc' ],

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'Bcc' => $settings[ 'bcc' ],

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'Reply-to' => $settings[ 'reply_to' ],

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);

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foreach( $recipient_settings as $type => $emails ){

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$emails = explode( ',', $emails );

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foreach( $emails as $email ) {

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if( ! $email ) continue;

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$matches = array();

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if (preg_match('/^"?(?<name>[^<"]+)"? <(?<email>[^>]+)>$/', $email, $matches)) {

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$headers[] = $this->_format_recipient($type, $matches['email'], $matches['name']);

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} else {

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$headers[] = $this->_format_recipient($type, $email);

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}

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}

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}

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return $headers;

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}

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private function _format_recipient( $type, $email, $name = '' )

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{

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$type = ucfirst( $type );

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if( ! $name ) $name = $email;

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$recipient = "$type: $name <$email>";

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return $recipient;

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}

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private function _create_csv( $fields )

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{

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$csv_array = array();

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// Get our current date.

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$date_format = Ninja_Forms()->get_setting( 'date_format' );

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$today = date( $date_format, current_time( 'timestamp' ) );

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$csv_array[ 0 ][] = 'Date Submitted';

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$csv_array[ 1 ][] = $today;

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foreach( $fields as $field ){

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$ignore = array(

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'hr',

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'submit',

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'html',

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'creditcardcvc',

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'creditcardexpiration',

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'creditcardfullname',

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'creditcardnumber',

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'creditcardzip',

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);

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$ignore = apply_filters( 'ninja_forms_csv_ignore_fields', $ignore );

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if( ! isset( $field[ 'label' ] ) ) continue;

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if( in_array( $field[ 'type' ], $ignore ) ) continue;

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$label = ( '' != $field[ 'admin_label' ] ) ? $field[ 'admin_label' ] : $field[ 'label' ];

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$value = WPN_Helper::stripslashes( $field[ 'value' ] );

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if ( empty( $value ) && ! isset( $value ) ) {

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$value = '';

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}

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if ( is_array( $value ) ) {

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$value = implode( ',', $value );

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}

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// add filter to add single quote if first character in value is '='

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$value = apply_filters( 'ninja_forms_subs_export_field_value_' . $field[ 'type' ], $value, $field );

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$csv_array[ 0 ][] = $label;

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$csv_array[ 1 ][] = $value;

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}

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$csv_content = WPN_Helper::str_putcsv( $csv_array,

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apply_filters( 'ninja_forms_sub_csv_delimiter', ',' ),

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apply_filters( 'ninja_forms_sub_csv_enclosure', '"' ),

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apply_filters( 'ninja_forms_sub_csv_terminator', "\n" )

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);

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$upload_dir = wp_upload_dir();

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$path = trailingslashit( $upload_dir['path'] );

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// create temporary file

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$path = tempnam( $path, 'Sub' );

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$temp_file = fopen( $path, 'r+' );

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// write to temp file

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fwrite( $temp_file, $csv_content );

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fclose( $temp_file );

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// find the directory we will be using for the final file

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$path = pathinfo( $path );

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$dir = $path['dirname'];

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$basename = $path['basename'];

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// create name for file

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$new_name = apply_filters( 'ninja_forms_submission_csv_name', 'ninja-forms-submission' );

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// remove a file if it already exists

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if( file_exists( $dir.'/'.$new_name.'.csv' ) ) {

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unlink( $dir.'/'.$new_name.'.csv' );

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}

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// move file

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rename( $dir.'/'.$basename, $dir.'/'.$new_name.'.csv' );

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return $dir.'/'.$new_name.'.csv';

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}

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/**

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* Function to delete csv file from temp directory after Email Action has completed.

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*/

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private function _drop_csv()

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{

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$upload_dir = wp_upload_dir();

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$path = trailingslashit( $upload_dir['path'] );

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// create name for file

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$new_name = apply_filters( 'ninja_forms_submission_csv_name', 'ninja-forms-submission' );

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// remove a file if it already exists

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if( file_exists( $path.'/'.$new_name.'.csv' ) ) {

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unlink( $path.'/'.$new_name.'.csv' );

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}

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}

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/*

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* Backwards Compatibility

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*/

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private function _backwards_compatibility()

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{

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add_filter( 'ninja_forms_sub_csv_delimiter', array( $this, 'ninja_forms_sub_csv_delimiter' ), 10, 1 );

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add_filter( 'ninja_sub_csv_enclosure', array( $this, 'ninja_sub_csv_enclosure' ), 10, 1 );

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add_filter( 'ninja_sub_csv_terminator', array( $this, 'ninja_sub_csv_terminator' ), 10, 1 );

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add_filter( 'ninja_forms_action_email_attachments', array( $this, 'ninja_forms_action_email_attachments' ), 10, 3 );

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}

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public function ninja_forms_sub_csv_delimiter( $delimiter )

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{

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return apply_filters( 'nf_sub_csv_delimiter', $delimiter );

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}

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public function ninja_sub_csv_enclosure( $enclosure )

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{

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return apply_filters( 'nf_sub_csv_enclosure', $enclosure );

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}

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public function ninja_sub_csv_terminator( $terminator )

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{

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return apply_filters( 'nf_sub_csv_terminator', $terminator );

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}

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public function ninja_forms_action_email_attachments( $attachments, $form_data, $action_settings )

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{

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return apply_filters( 'nf_email_notification_attachments', $attachments, $action_settings[ 'id' ] );

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}

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private function format_plain_text_message( $message )

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{

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$message = str_replace( array( '<table>', '</table>', '<tr><td>', '' ), '', $message );

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$message = str_replace( '</td><td>', ' ', $message );

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$message = str_replace( '</td></tr>', "\r\n", $message );

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return strip_tags( $message );

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}

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}

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