Edit File by line

<?php

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if ( ! class_exists( 'WPCF7_Service' ) ) {

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return;

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}

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class WPCF7_Stripe extends WPCF7_Service {

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private static $instance;

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private $api_keys;

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public static function get_instance() {

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if ( empty( self::$instance ) ) {

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self::$instance = new self;

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}

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return self::$instance;

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}

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private function __construct() {

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$option = WPCF7::get_option( 'stripe' );

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if ( isset( $option['api_keys']['publishable'] )

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and isset( $option['api_keys']['secret'] ) ) {

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$this->api_keys = array(

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'publishable' => $option['api_keys']['publishable'],

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'secret' => $option['api_keys']['secret'],

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);

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}

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}

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public function get_title() {

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return __( 'Stripe', 'contact-form-7' );

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}

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public function is_active() {

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return (bool) $this->get_api_keys();

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}

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public function api() {

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if ( $this->is_active() ) {

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$api = new WPCF7_Stripe_API( $this->api_keys['secret'] );

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return $api;

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}

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}

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public function get_api_keys() {

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return $this->api_keys;

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}

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public function get_categories() {

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return array( 'payments' );

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}

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public function icon() {

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}

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public function link() {

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echo wpcf7_link(

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'https://stripe.com/',

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'stripe.com'

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);

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}

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protected function menu_page_url( $args = '' ) {

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$args = wp_parse_args( $args, array() );

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$url = menu_page_url( 'wpcf7-integration', false );

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$url = add_query_arg( array( 'service' => 'stripe' ), $url );

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if ( ! empty( $args ) ) {

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$url = add_query_arg( $args, $url );

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}

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return $url;

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}

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protected function save_data() {

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WPCF7::update_option( 'stripe', array(

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'api_keys' => $this->api_keys,

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) );

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}

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protected function reset_data() {

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$this->api_keys = null;

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$this->save_data();

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}

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public function load( $action = '' ) {

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if ( 'setup' == $action and 'POST' == $_SERVER['REQUEST_METHOD'] ) {

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check_admin_referer( 'wpcf7-stripe-setup' );

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if ( ! empty( $_POST['reset'] ) ) {

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$this->reset_data();

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$redirect_to = $this->menu_page_url( 'action=setup' );

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} else {

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$publishable = trim( $_POST['publishable'] ?? '' );

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$secret = trim( $_POST['secret'] ?? '' );

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if ( $publishable and $secret ) {

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$this->api_keys = array(

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'publishable' => $publishable,

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'secret' => $secret,

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);

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$this->save_data();

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$redirect_to = $this->menu_page_url( array(

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'message' => 'success',

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) );

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} else {

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$redirect_to = $this->menu_page_url( array(

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'action' => 'setup',

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'message' => 'invalid',

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) );

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}

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}

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wp_safe_redirect( $redirect_to );

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exit();

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}

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}

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public function admin_notice( $message = '' ) {

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if ( 'invalid' == $message ) {

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echo sprintf(

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'<div class="notice notice-error"><p><strong>%1$s</strong>: %2$s</p></div>',

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esc_html( __( "Error", 'contact-form-7' ) ),

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esc_html( __( "Invalid key values.", 'contact-form-7' ) )

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);

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}

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if ( 'success' == $message ) {

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echo sprintf(

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'<div class="notice notice-success"><p>%s</p></div>',

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esc_html( __( 'Settings saved.', 'contact-form-7' ) )

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);

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}

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}

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public function display( $action = '' ) {

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echo sprintf(

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'<p>%s</p>',

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// https://stripe.com/docs/partners/support#intro

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esc_html( __( "Stripe is a simple and powerful way to accept payments online. Stripe has no setup fees, no monthly fees, and no hidden costs. Millions of businesses rely on Stripe’s software tools to accept payments securely and expand globally.", 'contact-form-7' ) )

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);

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echo sprintf(

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'<p><strong>%s</strong></p>',

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wpcf7_link(

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__( 'https://contactform7.com/stripe-integration/', 'contact-form-7' ),

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__( 'Stripe integration', 'contact-form-7' )

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)

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);

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if ( $this->is_active() ) {

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echo sprintf(

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'<p class="dashicons-before dashicons-yes">%s</p>',

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esc_html( __( "Stripe is active on this site.", 'contact-form-7' ) )

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);

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}

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if ( 'setup' == $action ) {

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$this->display_setup();

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} elseif ( is_ssl() or WP_DEBUG ) {

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echo sprintf(

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'<p><a href="%1$s" class="button">%2$s</a></p>',

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esc_url( $this->menu_page_url( 'action=setup' ) ),

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esc_html( __( 'Setup Integration', 'contact-form-7' ) )

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);

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} else {

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echo sprintf(

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'<p class="dashicons-before dashicons-warning">%s</p>',

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esc_html( __( "Stripe is not available on this site. It requires an HTTPS-enabled site.", 'contact-form-7' ) )

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);

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}

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}

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private function display_setup() {

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$api_keys = $this->get_api_keys();

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if ( $api_keys ) {

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$publishable = $api_keys['publishable'];

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$secret = $api_keys['secret'];

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} else {

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$publishable = '';

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$secret = '';

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}

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<form method="post" action="<?php echo esc_url( $this->menu_page_url( 'action=setup' ) ); ?>">

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<?php wp_nonce_field( 'wpcf7-stripe-setup' ); ?>

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<tbody>

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<tr>

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<td><?php

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if ( $this->is_active() ) {

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echo esc_html( $publishable );

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echo sprintf(

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'<input type="hidden" value="%s" id="publishable" name="publishable" />',

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esc_attr( $publishable )

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);

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} else {

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echo sprintf(

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'<input type="text" aria-required="true" value="%s" id="publishable" name="publishable" class="regular-text code" />',

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esc_attr( $publishable )

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);

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}

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?></td>

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</tr>

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<tr>

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<td><?php

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if ( $this->is_active() ) {

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echo esc_html( wpcf7_mask_password( $secret ) );

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echo sprintf(

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'<input type="hidden" value="%s" id="secret" name="secret" />',

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esc_attr( $secret )

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);

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} else {

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echo sprintf(

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'<input type="text" aria-required="true" value="%s" id="secret" name="secret" class="regular-text code" />',

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esc_attr( $secret )

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);

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}

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?></td>

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</tr>

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</tbody>

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</table>

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<?php

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if ( $this->is_active() ) {

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submit_button(

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_x( 'Remove Keys', 'API keys', 'contact-form-7' ),

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'small', 'reset'

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);

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} else {

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submit_button( __( 'Save Changes', 'contact-form-7' ) );

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}

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</form>

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<?php

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}

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}

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