<?php
if ( ! class_exists( 'WPCF7_Service_OAuth2' ) ) {
return;
}
class WPCF7_ConstantContact extends WPCF7_Service_OAuth2 {
const service_name = 'constant_contact';
const authorization_endpoint
= 'https://authz.constantcontact.com/oauth2/default/v1/authorize';
const token_endpoint
= 'https://authz.constantcontact.com/oauth2/default/v1/token';
private static $instance;
protected $contact_lists = array();
public static function get_instance() {
if ( empty( self::$instance ) ) {
self::$instance = new self;
}
return self::$instance;
}
private function __construct() {
$this->authorization_endpoint = self::authorization_endpoint;
$this->token_endpoint = self::token_endpoint;
$option = (array) WPCF7::get_option( self::service_name );
if ( isset( $option['client_id'] ) ) {
$this->client_id = $option['client_id'];
}
if ( isset( $option['client_secret'] ) ) {
$this->client_secret = $option['client_secret'];
}
if ( isset( $option['access_token'] ) ) {
$this->access_token = $option['access_token'];
}
if ( isset( $option['refresh_token'] ) ) {
$this->refresh_token = $option['refresh_token'];
}
if ( $this->is_active() ) {
if ( isset( $option['contact_lists'] ) ) {
$this->contact_lists = $option['contact_lists'];
}
}
add_action( 'wpcf7_admin_init', array( $this, 'auth_redirect' ) );
}
public function auth_redirect() {
$auth = isset( $_GET['auth'] ) ? trim( $_GET['auth'] ) : '';
if ( self::service_name === $auth
and current_user_can( 'wpcf7_manage_integration' ) ) {
$redirect_to = add_query_arg(
array(
'service' => self::service_name,
'action' => 'auth_redirect',
'code' => isset( $_GET['code'] ) ? trim( $_GET['code'] ) : '',
'state' => isset( $_GET['state'] ) ? trim( $_GET['state'] ) : '',
),
menu_page_url( 'wpcf7-integration', false )
);
wp_safe_redirect( $redirect_to );
exit();
}
}
protected function save_data() {
$option = array_merge(
(array) WPCF7::get_option( self::service_name ),
array(
'client_id' => $this->client_id,
'client_secret' => $this->client_secret,
'access_token' => $this->access_token,
'refresh_token' => $this->refresh_token,
'contact_lists' => $this->contact_lists,
)
);
WPCF7::update_option( self::service_name, $option );
}
protected function reset_data() {
$this->client_id = '';
$this->client_secret = '';
$this->access_token = '';
$this->refresh_token = '';
$this->contact_lists = array();
$this->save_data();
}
public function get_title() {
return __( 'Constant Contact', 'contact-form-7' );
}
public function get_categories() {
return array( 'email_marketing' );
}
public function icon() {
}
public function link() {
echo sprintf( '<a href="%1$s">%2$s</a>',
'https://constant-contact.evyy.net/c/1293104/205991/3411',
'constantcontact.com'
);
}
protected function get_redirect_uri() {
return admin_url( '/?auth=' . self::service_name );
}
protected function menu_page_url( $args = '' ) {
$args = wp_parse_args( $args, array() );
$url = menu_page_url( 'wpcf7-integration', false );
$url = add_query_arg( array( 'service' => self::service_name ), $url );
if ( ! empty( $args ) ) {
$url = add_query_arg( $args, $url );
}
return $url;
}
public function load( $action = '' ) {
if ( 'auth_redirect' == $action ) {
$code = isset( $_GET['code'] ) ? urldecode( $_GET['code'] ) : '';
$state = isset( $_GET['state'] ) ? urldecode( $_GET['state'] ) : '';
if ( $code and $state
and wpcf7_verify_nonce( $state, 'wpcf7_constant_contact_authorize' ) ) {
$response = $this->request_token( $code );
}
if ( ! empty( $this->access_token ) ) {
$message = 'success';
} else {
$message = 'failed';
}
wp_safe_redirect( $this->menu_page_url(
array(
'action' => 'setup',
'message' => $message,
)
) );
exit();
}
if ( 'setup' == $action and 'POST' == $_SERVER['REQUEST_METHOD'] ) {
check_admin_referer( 'wpcf7-constant-contact-setup' );
if ( ! empty( $_POST['reset'] ) ) {
$this->reset_data();
} else {
$this->client_id = isset( $_POST['client_id'] )
? trim( $_POST['client_id'] ) : '';
$this->client_secret = isset( $_POST['client_secret'] )
? trim( $_POST['client_secret'] ) : '';
$this->save_data();
$this->authorize( 'contact_data offline_access' );
}
wp_safe_redirect( $this->menu_page_url( 'action=setup' ) );
exit();
}
}
protected function authorize( $scope = '' ) {
$endpoint = add_query_arg(
array_map( 'urlencode', array(
'response_type' => 'code',
'client_id' => $this->client_id,
'redirect_uri' => $this->get_redirect_uri(),
'scope' => $scope,
'state' => wpcf7_create_nonce( 'wpcf7_constant_contact_authorize' ),
) ),
$this->authorization_endpoint
);
if ( wp_redirect( esc_url_raw( $endpoint ) ) ) {
exit();
}
}
public function email_exists( $email ) {
$endpoint = add_query_arg(
array(
'email' => $email,
'status' => 'all',
),
'https://api.cc.email/v3/contacts'
);
$request = array(
'method' => 'GET',
'headers' => array(
'Accept' => 'application/json',
'Content-Type' => 'application/json; charset=utf-8',
),
);
$response = $this->remote_request( $endpoint, $request );
if ( 400 <= (int) wp_remote_retrieve_response_code( $response ) ) {
if ( WP_DEBUG ) {
$this->log( $endpoint, $request, $response );
}
return false;
}
$response_body = wp_remote_retrieve_body( $response );
if ( empty( $response_body ) ) {
return false;
}
$response_body = json_decode( $response_body, true );
return ! empty( $response_body['contacts'] );
}
public function create_contact( $properties ) {
$endpoint = 'https://api.cc.email/v3/contacts';
$request = array(
'method' => 'POST',
'headers' => array(
'Accept' => 'application/json',
'Content-Type' => 'application/json; charset=utf-8',
),
'body' => json_encode( $properties ),
);
$response = $this->remote_request( $endpoint, $request );
if ( 400 <= (int) wp_remote_retrieve_response_code( $response ) ) {
if ( WP_DEBUG ) {
$this->log( $endpoint, $request, $response );
}
return false;
}
}
public function get_contact_lists() {
$endpoint = 'https://api.cc.email/v3/contact_lists';
$request = array(
'method' => 'GET',
'headers' => array(
'Accept' => 'application/json',
'Content-Type' => 'application/json; charset=utf-8',
),
);
$response = $this->remote_request( $endpoint, $request );
if ( 400 <= (int) wp_remote_retrieve_response_code( $response ) ) {
if ( WP_DEBUG ) {
$this->log( $endpoint, $request, $response );
}
return false;
}
$response_body = wp_remote_retrieve_body( $response );
if ( empty( $response_body ) ) {
return false;
}
$response_body = json_decode( $response_body, true );
if ( ! empty( $response_body['lists'] ) ) {
return (array) $response_body['lists'];
} else {
return array();
}
}
public function update_contact_lists( $selection = array() ) {
$contact_lists = array();
$contact_lists_on_api = $this->get_contact_lists();
if ( false !== $contact_lists_on_api ) {
foreach ( (array) $contact_lists_on_api as $list ) {
if ( isset( $list['list_id'] ) ) {
$list_id = trim( $list['list_id'] );
} else {
continue;
}
if ( isset( $this->contact_lists[$list_id]['selected'] ) ) {
$list['selected'] = $this->contact_lists[$list_id]['selected'];
} else {
$list['selected'] = array();
}
$contact_lists[$list_id] = $list;
}
} else {
$contact_lists = $this->contact_lists;
}
foreach ( (array) $selection as $key => $ids_or_names ) {
foreach( $contact_lists as $list_id => $list ) {
if ( in_array( $list['list_id'], (array) $ids_or_names, true )
or in_array( $list['name'], (array) $ids_or_names, true ) ) {
$contact_lists[$list_id]['selected'][$key] = true;
} else {
unset( $contact_lists[$list_id]['selected'][$key] );
}
}
}
$this->contact_lists = $contact_lists;
if ( $selection ) {
$this->save_data();
}
return $this->contact_lists;
}
public function admin_notice( $message = '' ) {
switch ( $message ) {
case 'success':
echo sprintf(
'<div class="notice notice-success"><p>%s</p></div>',
esc_html( __( "Connection established.", 'contact-form-7' ) )
);
break;
case 'failed':
echo sprintf(
'<div class="notice notice-error"><p><strong>%1$s</strong>: %2$s</p></div>',
esc_html( __( "Error", 'contact-form-7' ) ),
esc_html( __( "Failed to establish connection. Please double-check your configuration.", 'contact-form-7' ) )
);
break;
case 'updated':
echo sprintf(
'<div class="notice notice-success"><p>%s</p></div>',
esc_html( __( "Configuration updated.", 'contact-form-7' ) )
);
break;
}
}
public function display( $action = '' ) {
echo '<p>' . sprintf(
esc_html( __( 'The Constant Contact integration module allows you to send contact data collected through your contact forms to the Constant Contact API. You can create reliable email subscription services in a few easy steps. For details, see %s.', 'contact-form-7' ) ),
wpcf7_link(
__(
'https://contactform7.com/constant-contact-integration/',
'contact-form-7'
),
__( 'Constant Contact integration', 'contact-form-7' )
)
) . '</p>';
if ( $this->is_active() ) {
echo sprintf(
'<p class="dashicons-before dashicons-yes">%s</p>',
esc_html( __( "This site is connected to the Constant Contact API.", 'contact-form-7' ) )
);
}
if ( 'setup' == $action ) {
$this->display_setup();
} else {
echo sprintf(
'<p><a href="%1$s" class="button">%2$s</a></p>',
esc_url( $this->menu_page_url( 'action=setup' ) ),
esc_html( __( 'Setup Integration', 'contact-form-7' ) )
);
}
}
private function display_setup() {
?>
<form method="post" action="<?php echo esc_url( $this->menu_page_url( 'action=setup' ) ); ?>">
<?php wp_nonce_field( 'wpcf7-constant-contact-setup' ); ?>
<table class="form-table">
<tbody>
<tr>
<th scope="row"><label for="client_id"><?php echo esc_html( __( 'API Key', 'contact-form-7' ) ); ?></label></th>
<td><?php
if ( $this->is_active() ) {
echo esc_html( $this->client_id );
echo sprintf(
'<input type="hidden" value="%1$s" id="client_id" name="client_id" />',
esc_attr( $this->client_id )
);
} else {
echo sprintf(
'<input type="text" aria-required="true" value="%1$s" id="client_id" name="client_id" class="regular-text code" />',
esc_attr( $this->client_id )
);
}
?></td>
</tr>
<tr>
<th scope="row"><label for="client_secret"><?php echo esc_html( __( 'App Secret', 'contact-form-7' ) ); ?></label></th>
<td><?php
if ( $this->is_active() ) {
echo esc_html( wpcf7_mask_password( $this->client_secret, 4, 4 ) );
echo sprintf(
'<input type="hidden" value="%1$s" id="client_secret" name="client_secret" />',
esc_attr( $this->client_secret )
);
} else {
echo sprintf(
'<input type="text" aria-required="true" value="%1$s" id="client_secret" name="client_secret" class="regular-text code" />',
esc_attr( $this->client_secret )
);
}
?></td>
</tr>
<tr>
<th scope="row"><label for="redirect_uri"><?php echo esc_html( __( 'Redirect URI', 'contact-form-7' ) ); ?></label></th>
<td><?php
echo sprintf(
'<input type="text" value="%1$s" id="redirect_uri" name="redirect_uri" class="large-text code" readonly="readonly" onfocus="this.select();" style="font-size: 11px;" />',
$this->get_redirect_uri()
);
?>
<p class="description"><?php echo esc_html( __( "Set this URL as the redirect URI.", 'contact-form-7' ) ); ?></p>
</td>
</tr>
</tbody>
</table>
<?php
if ( $this->is_active() ) {
submit_button(
_x( 'Reset Keys', 'API keys', 'contact-form-7' ),
'small', 'reset'
);
} else {
submit_button(
__( 'Connect to the Constant Contact API', 'contact-form-7' )
);
}
?>
</form>
<?php
}
}