June 21, 2017: Improved support for automatically showing required form if no required message is specified.
March 2, 2017: Updated submitted forms cookie to be persistent by default. Added new "is_persistent" option to disable this.
March 1, 2017: Added support for "gwsa_requires_submission_redirect" option to allow automatically redirecting to a specific page if the user requires access.
March 23, 2016: Added support for requiring a form to be submitted before any page can be accessed. Added support for storing submitted forms in user meta.
March 3, 2015: Added support for shortcodes in "gwsa_requires_submission_message" custom field. Fixed issue where json_decode() did not return an array.
| <?php | |
| /** | |
| * Gravity Wiz // Gravity Forms // Submit to Access | |
| * | |
| * Require that a form be submitted before a post or page can be accessed. | |
| * | |
| * @version 1.7 | |
| * @author David Smith <david@gravitywiz.com> | |
| * @license GPL-2.0+ | |
| * @link https://gravitywiz.com/submit-gravity-form-access-content/ | |
| * | |
| * ### WordPress Plugin Headers ### | |
| * | |
| * Plugin Name: Gravity Forms Submit to Access | |
| * Plugin URI: https://gravitywiz.com/submit-gravity-form-access-content/ | |
| * Description: Require that a form be submitted before a post or page can be accessed. | |
| * Author: Gravity Wiz | |
| * Version: 1.7 | |
| * Author URI: http://gravitywiz.com | |
| */ | |
| class GW_Submit_Access { | |
| public function __construct( $args = array() ) { | |
| // set our default arguments, parse against the provided arguments, and store for use throughout the class | |
| $this->_args = wp_parse_args( $args, array( | |
| 'requires_submission_message' => __( 'Oops! You do not have access to this page.' ), | |
| 'bypass_cache' => false, | |
| 'loading_message' => '', // set later so we can use GFCommon to get URL to GF spinner, | |
| 'enable_user_meta' => false, | |
| 'is_persistent' => true, | |
| ) ); | |
| // do version check in the init to make sure if GF is going to be loaded, it is already loaded | |
| add_action( 'init', array( $this, 'init' ) ); | |
| } | |
| public function init() { | |
| // make sure we're running the required minimum version of Gravity Forms | |
| if( ! property_exists( 'GFCommon', 'version' ) || ! version_compare( GFCommon::$version, '1.8', '>=' ) ) { | |
| return; | |
| } | |
| // setting later so we can use GFCommon::get_base_url() to get GF's spinner URL | |
| if( empty( $this->_args['loading_message'] ) ) { | |
| $this->_args['loading_message'] = '<span class="gwsa-loading">Loading content... <img src="' . GFCommon::get_base_url() . '/images/spinner.gif" /></span>'; | |
| } | |
| add_action( 'wp', array( $this, 'check_global_requirements' ), 5 ); | |
| add_action( 'admin_init', array( $this, 'check_global_requirements' ), 5 ); | |
| add_action( 'wp', array( $this, 'check_for_access_redirect' ) ); | |
| add_action( 'gform_pre_submission', array( $this, 'add_submitted_form' ) ); | |
| add_filter( 'the_content', array( $this, 'maybe_hide_the_content' ) ); | |
| add_action( 'wp_ajax_gwas_get_content', array( $this, 'ajax_get_content' ) ); | |
| add_action( 'wp_ajax_nopriv_gwas_get_content', array( $this, 'ajax_get_content' ) ); | |
| add_shortcode( 'gwsa', array( $this, 'do_gwsa_shortcoee' ) ); | |
| } | |
| public function check_global_requirements() { | |
| if( current_user_can( 'administrator' ) && is_admin() ) { | |
| return; | |
| } | |
| $global_posts = $this->get_global_posts(); | |
| if( empty( $global_posts ) ) { | |
| return; | |
| } | |
| // if we're already on a global post, don't do anything | |
| $object = get_queried_object(); | |
| if( is_a( $object, 'WP_Post' ) && in_array( $object->ID, wp_list_pluck( $global_posts, 'ID' ) ) ) { | |
| return; | |
| } | |
| foreach( $global_posts as $global_post ) { | |
| if( ! $this->has_access( $global_post->ID ) ) { | |
| wp_redirect( get_permalink( $global_post ) ); | |
| exit; | |
| } | |
| } | |
| } | |
| public function get_global_posts() { | |
| $query = array( | |
| 'post_type' => 'any', | |
| 'meta_query' => array( | |
| 'relation' => 'or', | |
| array( | |
| 'key' => 'gwsa_require_submission', | |
| 'value' => 'global' | |
| ), | |
| ), | |
| ); | |
| if( is_user_logged_in() ) { | |
| $query['meta_query'][] = array( | |
| 'key' => 'gwsa_require_submission', | |
| 'value' => 'global_logged_in' | |
| ); | |
| } | |
| $query = apply_filters( 'gfsa_get_global_posts_query', $query ); | |
| $global_posts = get_posts( $query ); | |
| return $global_posts; | |
| } | |
| public function check_for_access_redirect() { | |
| global $post; | |
| if( is_admin() ) { | |
| return; | |
| } | |
| if( ! $post || ! $this->requires_access( $post->ID ) || $this->has_access( $post->ID ) ) { | |
| return; | |
| } | |
| $url = $this->get_requires_submission_redirect( $post->ID ); | |
| if( $url ) { | |
| wp_redirect( $url ); | |
| exit; | |
| } | |
| } | |
| public function maybe_hide_the_content( $content ) { | |
| global $post; | |
| if( ! $this->requires_access( $post->ID ) ) { | |
| return $content; | |
| } | |
| if( $this->_args['bypass_cache'] ) { | |
| $content = $this->cache_bypass_content( $content ); | |
| } else if( ! $this->has_access( $post->ID ) ) { | |
| $content = $this->get_requires_submission_message( $post->ID ); | |
| } | |
| return $content; | |
| } | |
| function cache_bypass_content( $content ) { | |
| global $post; | |
| ob_start(); | |
| ?> | |
| <div id="gwsa-content"> | |
| <?php echo $this->_args['loading_message']; ?> | |
| </div> | |
| <script type="text/javascript"> | |
| var ajaxUrl = '<?php echo admin_url( 'admin-ajax.php' ); ?>'; | |
| ( function( $ ) { | |
| $.post( ajaxUrl, { | |
| action: 'gwas_get_content', | |
| post: <?php echo $post->ID; ?>, | |
| }, function( response ) { | |
| $( '#gwsa-content' ).html( response ); | |
| } ); | |
| } )( jQuery ); | |
| </script> | |
| <?php | |
| return ob_get_clean(); | |
| } | |
| function ajax_get_content() { | |
| $post_id = rgpost( 'post' ); | |
| if( $this->has_access( $post_id ) ) { | |
| $post = get_post( $post_id ); | |
| $GLOBALS['post'] = get_post( $post_id ); | |
| setup_postdata( $post ); | |
| remove_filter( 'the_content', array( $this, 'maybe_hide_the_content' ) ); | |
| // use the_content() so we get the content exactly as WP would have originally displayed it | |
| ob_start(); | |
| the_content(); | |
| $content = ob_get_clean(); | |
| } else { | |
| $content = $this->get_requires_submission_message( $post_id ); | |
| } | |
| die( $content ); | |
| } | |
| function get_requires_submission_message( $post_id ) { | |
| $requires_submission_message = get_post_meta( $post_id, 'gwsa_requires_submission_message', true ); | |
| $contains_form_merge_tag = strpos( $requires_submission_message, '{form}' ) !== false; | |
| if( ! $requires_submission_message || $contains_form_merge_tag ) { | |
| $form_ids = $this->get_form_ids( $post_id ); | |
| if( ! empty( $form_ids ) ) { | |
| ob_start(); | |
| $form = GFAPI::get_form( $form_ids[0] ); | |
| require_once( GFCommon::get_base_path() . '/form_display.php' ); | |
| GFFormDisplay::print_form_scripts( $form, true ); | |
| gravity_form( $form_ids[0], false, false, false, array(), $this->_args['bypass_cache'] ); | |
| $form_markup = ob_get_clean(); | |
| $requires_submission_message = $contains_form_merge_tag ? str_replace( '{form}', $form_markup, $requires_submission_message ) : $form_markup; | |
| // Replace form's action URL. | |
| if( defined( 'DOING_AJAX' ) && DOING_AJAX ) { | |
| $search = remove_query_arg( 'gf_token' ); | |
| $replace = get_permalink( rgpost( 'post' ) ); | |
| // get_permalink() defaults to whatever protocol the site url is configured for; we need to be sure | |
| // if the form is being loaded on an https page, that our action url is also https. | |
| if( is_ssl() ) { | |
| $replace = str_replace( 'http://', 'https://', $replace ); | |
| } | |
| $requires_submission_message = str_replace( $search, $replace, $requires_submission_message ); | |
| } | |
| } | |
| } | |
| if( ! $requires_submission_message ) { | |
| $requires_submission_message = $this->_args['requires_submission_message']; | |
| } | |
| return do_shortcode( $requires_submission_message ); | |
| } | |
| function get_requires_submission_redirect( $post_id ) { | |
| return get_post_meta( $post_id, 'gwsa_requires_submission_redirect', true ); | |
| } | |
| function has_access( $post_id ) { | |
| if( ! $this->requires_access( $post_id ) ) { | |
| return true; | |
| } | |
| $form_ids = $this->get_form_ids( $post_id ); | |
| $submitted_forms = $this->get_submitted_forms(); | |
| // if not form-specific and at least one form is submitted, user has access | |
| if( empty( $form_ids ) && ! empty( $submitted_forms ) ) { | |
| return true; | |
| } | |
| // has specifically required form been submitted? | |
| $matching_form_ids = array_intersect( $form_ids, $submitted_forms ); | |
| if( ! empty( $matching_form_ids ) ) { | |
| return true; | |
| } | |
| return false; | |
| } | |
| function requires_access( $post_id ) { | |
| return get_post_meta( $post_id, 'gwsa_require_submission', true ) == true; | |
| } | |
| function get_submitted_forms() { | |
| // always check the cookie first; will allow user meta vs cookie to be set per page in the future | |
| $submitted_forms = (array) json_decode( stripslashes( rgar( $_COOKIE, 'gwsa_submitted_forms' ) ) ); | |
| // if user meta is enabled, merge forms stored there as well | |
| if( $this->_args['enable_user_meta'] ) { | |
| $user_meta_forms = (array) wp_get_current_user()->get( 'gwsa_submitted_forms' ); | |
| $submitted_forms = array_merge( $submitted_forms, $user_meta_forms ); | |
| } | |
| return array_filter( $submitted_forms ); | |
| } | |
| function add_submitted_form( $form ) { | |
| $submitted_forms = $this->get_submitted_forms(); | |
| $form_id = $form['id']; | |
| if( ! in_array( $form_id, $submitted_forms ) && ! headers_sent() ) { | |
| $submitted_forms[] = $form_id; | |
| if( $this->_args['enable_user_meta'] && is_user_logged_in() ) { | |
| update_user_meta( get_current_user_id(), 'gwsa_submitted_forms', $submitted_forms ); | |
| } else { | |
| $expiration = $this->_args['is_persistent'] ? strtotime( '+1 year' ) : null; | |
| setcookie( 'gwsa_submitted_forms', json_encode( $submitted_forms ), $expiration, '/' ); | |
| } | |
| } | |
| } | |
| function get_form_ids( $post_id ) { | |
| return array_filter( array_map( 'trim', explode( ',', get_post_meta( $post_id, 'gwsa_form_ids', true ) ) ) ); | |
| } | |
| } | |
| # Configuration | |
| new GW_Submit_Access(); |
You have a post or page you’d like to protect but you don’t want to require the user to sign up for a user account and you just don’t need a full-blown membership system. All you want to do is collect a few details about the user for your mailing list or CRM.
This plugin provides an easy way to accomplish this. Any post-based content (that includes pages and custom post types) that support custom fields can be locked down. You set a few special custom fields and the Gravity Forms Submit to Access plugin takes care of the rest.
Getting Started
Check requirements
- Make sure you have Gravity Forms installed and activated.
- Already have a license? Download Latest Gravity Forms
- Need a license? Buy Gravity Forms
- Make sure you have Gravity Forms installed and activated.
Install the plugin
- Click the “Download Code” button above and save the file to your Desktop.
- Drop the file into your WordPress plugins folder via FTP – or – zip the file up and upload it via WordPress plugin uploader.
Configure the plugin
- Read on for step-by-step instructions
Locking Down a Page
- Navigate to the Edit screen for any post, page, or any custom post type.
- Enable “Custom Fields” via the “Screen Options” at the top of the page. There is a good chance they are already enabled.
- Add a custom field named gwsa_require_submission with a value of
1.
- Add a custom field named gwsa_form_ids and set the value to the ID of whichever form the user should submit to gain access to this page.
That’s it! For a complete list of the available options, read on.
Custom Field Options
gwsa_require_submission (int) (required)
Add this custom field with a value of
1to require a Gravity Form to be submitted to gain access.gwsa_form_ids (bool) (optional)
Add this custom field and set the value to the ID of the form which must be submitted to gain access to this page. If there are multiple forms that can be submitted to gain access, you may include them as a comma-delimited list (i.e.
1,2,3). If any form can be submitted to gain access to this page, do not add this custom field option.gwsa_requires_submission_message (string) (optional)
Override the default message that is displayed when the user does not have access to view the content of this page.
gwsa_requires_submission_redirect (string) (optional)
Provide a URL to which the user will be redirected if they do not have access to view the content of this page.
Global Parameters
requires_submission_message (string) (optional)
Define the default message that is displayed if the user does not have access to the content. This value will be overridden if a post-specific message is set via the gwsa_requires_submission_message custom field option. Defaults to
'Oops! You do not have access to this page.'.bypass_cache (bool) (optional)
Enabling this option will allow the script to bypass any page/cookie caching by fetching the post content via AJAX. Defaults to
false.loading_message (array) (optional)
If bypass_cache is enabled, this option allows you to control the loading message which is visible while the post content is being fetched via AJAX.
is_persistent (bool) (optional)
The cookie that stores which forms have been submitted for the visitor is persistent by default. Set this to
falseto make the cookie session-based.enable_user_meta (bool) (optional)
Set this to
trueto save submitted forms in the user meta rather than a cookie. Only works for logged-in users.
Any questions?
This is a bare bones plugin. It uses WordPress’ custom fields UI to handle setting the options and advanced configuration should happen in the plugin.
If this proves to be a popular resource, I’ll be happy to enhance it to be even easier to use.
Did this resource help you do something awesome with Gravity Forms? Then you'll absolutely love Gravity Perks; a suite of 31+ essential add-ons for Gravity Forms with support you can count on.
Hi… I love how this is supposed to work and it seems half-way there.
But as soon as I set the custom field “gwsa_require_submission” on a post, it breaks all jQuery on the page with a handful of console errors: Uncaught ReferenceError: jQuery is not defined
I see a comment before where Sam said: “was also somehow dequeuing jquery.js and jquery-migrate.min.js from WordPress /wp-includes, so I had to re-queue those both in to the plugin code.”
But I can’t seem to get those scripts queued again despite trying to add them in a few places on the init() function.
Any ideas?
Hi Keenan, I’m not able to recreate any issues with jQuery or jQuery migrate. If you check out the demo you can see that this working as expected on a basic WordPress installation. There isn’t much more we can offer pro bono; however, if you’re an Advanced or Pro Gravity Perks user, we’d be happy to dig into your specific configuration via support.
Hey David, no worries! I was able to get a version of it working after playing with it. Not as full featured as the demo, but working for what I needed. Thanks for getting back!
Glad to hear it, Keenan. 🙂