webadmin.php

/var/www/html/wp-content/plugins/contact-form-7/modules/constant-contact/service.php

<?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
    }

}