fastcomments-wordpress-plugin.php

<?php
/*
Plugin Name: FastComments
Plugin URI: https://fastcomments.com
Description: A live, fast, privacy-focused commenting system with advanced spam prevention capabilities.
Version: 3.18.0
Author: winrid @ FastComments
License: GPL-2.0+
*/

// Safe guard to prevent loading this from outside wordpress.
if (!defined('WPINC')) {
    die;
}

$FASTCOMMENTS_VERSION = 3.180;

require_once plugin_dir_path(__FILE__) . 'admin/fastcomments-admin.php';
require_once plugin_dir_path(__FILE__) . 'public/fastcomments-public.php';
$fastcomments_public = new FastCommentsPublic();
$fastcomments_public->setup_api_listeners(); // TODO able to do this without new()?

// Returns the FastComments embed comments template
function fc_comments_template()
{
    $path = plugin_dir_path(__FILE__) . 'public/fastcomments-widget-view.php';
    if (!file_exists($path)) {
        throw new Exception("Could not find file! $path");
    }
    return $path;
}

// Returns the FastComments embed comments template
// This method takes more arguments, like post id, but we found it not to be reliable.
function fc_comment_count_template($text_no_comments = "")
{
    global $post;
    $post_id = -1;
    if (isset($post) && $post->ID) {
        $post_id = $post->ID;
    }
    // we add opacity here to prevent flash of content when rendering the original text and then loading our script. We have a style override for users without JS.
    return "<span class=\"fast-comments-count\" data-fast-comments-url-id=\"$post_id\" style=\"opacity: 0;\"'>$text_no_comments</span>";
}

// Sets up the FastComments embed comment count script if needed. This is done this way, with wp_footer, to prevent loading an external script.
function fc_add_comment_count_scripts()
{
    global $post;

    if (!isset($post) || is_singular()) {
        return;
    }

    global $FASTCOMMENTS_VERSION;
    $cdn = FastCommentsPublic::getCDN();
    wp_enqueue_script('fastcomments_widget_count', "$cdn/js/embed-widget-comment-count-bulk.min.js", array(), $FASTCOMMENTS_VERSION, true);
}

// Sets up the FastComments embed comment count script if needed. This is done this way, with wp_footer, to prevent loading an external script.
function fc_add_comment_count_config()
{
    global $post;

    if (!isset($post) || is_singular()) {
        return;
    }

    $jsonFcConfig = json_encode(array(
        "tenantId" => get_option('fastcomments_tenant_id')
    ));
    echo "<script>window.FastCommentsBulkCountConfig = $jsonFcConfig;</script>";
    echo "<noscript><style>.fast-comments-count { opacity: 1 !important; }</style></noscript>";
}

// Comments can load as long as we have a tenant id.
if (get_option('fastcomments_tenant_id')) {
    add_filter('comments_template', 'fc_comments_template', 9001);
    function fc_comment_block_template($block_content, $parsed_block)
    {
        if ('core/comments' === $parsed_block['blockName'] && get_option('fastcomments_tenant_id')) {
            $path = fc_comments_template();
            ob_start();
            require_once $path;
            return ob_get_clean();
        }
        return $block_content;
    }

    add_filter('pre_render_block', 'fc_comment_block_template', 9002, 2);
    add_filter('comments_number', 'fc_comment_count_template', 9002);
    add_filter('wp_enqueue_scripts', 'fc_add_comment_count_scripts', 100);
    add_filter('wp_footer', 'fc_add_comment_count_config', 100);

    // Prevent spam bots from submitting to WordPress's native comment endpoints
    add_action('pre_comment_on_post', 'fc_block_native_submissions');
    add_filter('rest_pre_insert_comment', 'fc_block_rest_comments', 10, 2);
}

// Block submissions to wp-comments-post.php
function fc_block_native_submissions($comment_post_ID) {
    // When FastComments is active, block native WordPress comment submissions
    if (get_option('fastcomments_tenant_id')) {
        wp_die(__('Comments must be submitted through FastComments.', 'fastcomments'), __('Comments Disabled', 'fastcomments'), array('response' => 403));
    }
}

// Block REST API comment submissions
function fc_block_rest_comments($prepared_comment, $request) {
    // When FastComments is active, block REST API comment submissions
    if (get_option('fastcomments_tenant_id')) {
        return new WP_Error(
            'fastcomments_rest_blocked',
            __('Comments must be submitted through FastComments.', 'fastcomments'),
            array('status' => 403)
        );
    }
    return $prepared_comment;
}

function fastcomments_cron()
{
    try {
        require_once plugin_dir_path(__FILE__) . 'core/FastCommentsWordPressIntegration.php';
        $fastcomments = new FastCommentsWordPressIntegration();
        $fastcomments->log('debug', 'Begin cron tick.');
        $fastcomments->tick();
        $fastcomments->log('debug', 'End cron tick.');
    } catch (Exception $e) {
        error_log('ERROR:::FastComments cron failed: ' . $e->getMessage());
    }
}

add_action('fastcomments_cron_hook', 'fastcomments_cron');

function fastcomments_activate()
{
    require_once plugin_dir_path(__FILE__) . 'core/FastCommentsWordPressIntegration.php';
    $fastcomments = new FastCommentsWordPressIntegration();
    $fastcomments->activate();
}

function fastcomments_deactivate()
{
    require_once plugin_dir_path(__FILE__) . 'core/FastCommentsWordPressIntegration.php';
    $fastcomments = new FastCommentsWordPressIntegration();
    $fastcomments->deactivate();
}

function fastcomments_update()
{
    require_once plugin_dir_path(__FILE__) . 'core/FastCommentsWordPressIntegration.php';
    $fastcomments = new FastCommentsWordPressIntegration();
    $fastcomments->update();
}

register_activation_hook(__FILE__, 'fastcomments_activate');
register_deactivation_hook(__FILE__, 'fastcomments_deactivate');
add_action('plugins_loaded', 'fastcomments_update');