460 lines
14 KiB
PHP
460 lines
14 KiB
PHP
<?php
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/**
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* Plugin Name: antisocial-safety
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* Description: Secures attachment uploads and comments with the OpenAI moderation endpoint
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* Version: 1.6
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*/
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// Prevent direct access to the file
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if (!defined('ABSPATH')) {
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exit;
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}
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/**
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* Global variable to store moderation results temporarily
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*/
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global $oai_moderation_results;
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$oai_moderation_results = array();
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/**
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* Attachment Moderation
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*/
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// Hook into 'add_attachment' to moderate attachments upon upload
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add_action('add_attachment', 'oai_moderate_attachment');
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function oai_moderate_attachment($post_ID) {
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$attachment = get_post($post_ID);
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$mime_type = get_post_mime_type($post_ID);
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// Only moderate images
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if (strpos($mime_type, 'image/') !== false) {
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// Get the API key
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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// API key not set; skip moderation
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return;
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}
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// Get the file URL
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$file_url = wp_get_attachment_url($post_ID);
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// Moderate the image
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$result = oai_moderate_image($file_url);
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if (isset($result['error'])) {
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// Handle error (optional: log the error)
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// For graceful failure, do not flag the attachment
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return;
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}
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// Save the moderation result
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update_post_meta($post_ID, '_oai_moderation_result', $result);
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if ($result['flagged']) {
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// Mark as flagged
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update_post_meta($post_ID, '_oai_moderation_flagged', true);
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} else {
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// Remove any previous flag
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delete_post_meta($post_ID, '_oai_moderation_flagged');
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}
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}
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}
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function oai_moderate_image($image_url) {
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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// API key not set; skip moderation
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return array();
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}
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$endpoint = 'https://api.openai.com/v1/moderations';
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$data = array(
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'model' => 'omni-moderation-latest',
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'input' => array(
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array(
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'type' => 'image_url',
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'image_url' => array('url' => $image_url),
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),
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),
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);
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$args = array(
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'headers' => array(
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'Content-Type' => 'application/json',
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'Authorization' => 'Bearer ' . $api_key,
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),
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'body' => wp_json_encode($data),
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'timeout' => 60,
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);
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$response = wp_remote_post($endpoint, $args);
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if (is_wp_error($response)) {
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// For graceful failure, return an empty array
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return array();
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}
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$body = wp_remote_retrieve_body($response);
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$result = json_decode($body, true);
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if (isset($result['results'][0])) {
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return $result['results'][0];
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} else {
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// Invalid response; return an empty array
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return array();
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}
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}
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// Hook into 'template_redirect' to block access to flagged attachments
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add_action('template_redirect', 'oai_block_flagged_attachments');
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function oai_block_flagged_attachments() {
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if (is_attachment()) {
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global $post;
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if ($post) {
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$flagged = get_post_meta($post->ID, '_oai_moderation_flagged', true);
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if ($flagged) {
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// Send 403 Forbidden header and exit
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status_header(403);
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nocache_headers();
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// Optionally, display a message
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wp_die(__('You are not allowed to access this content.', 'oai'), __('Forbidden', 'oai'), array('response' => 403));
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}
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}
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}
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}
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/**
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* Comments Moderation
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*/
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// Moderate comments before saving
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add_filter('preprocess_comment', 'oai_moderate_comment');
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function oai_moderate_comment($commentdata) {
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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return $commentdata; // If API key not set, let the comment pass
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}
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$comment_content = $commentdata['comment_content'];
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// Moderate the comment text
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$result = oai_moderate_text($comment_content);
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if (isset($result['error'])) {
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// Handle error (optional: log the error)
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// For graceful failure, let the comment pass
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return $commentdata;
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}
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// Store the moderation result in a global variable indexed by comment content hash
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$hash = md5($comment_content);
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global $oai_moderation_results;
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$oai_moderation_results[$hash] = $result;
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return $commentdata;
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}
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// Set the comment approval status based on moderation result
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add_filter('pre_comment_approved', 'oai_set_comment_approval_status', 10, 2);
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function oai_set_comment_approval_status($approved, $commentdata) {
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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return $approved; // Let the comment pass if API key not set
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}
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$comment_content = $commentdata['comment_content'];
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$hash = md5($comment_content);
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global $oai_moderation_results;
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if (isset($oai_moderation_results[$hash])) {
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$result = $oai_moderation_results[$hash];
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if ($result['flagged']) {
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// Set comment to unapproved
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return '0'; // Unapproved
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}
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}
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return $approved;
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}
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// Save the moderation result after the comment is inserted
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add_action('comment_post', 'oai_save_comment_moderation_meta', 10, 2);
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function oai_save_comment_moderation_meta($comment_ID, $comment_approved) {
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$comment = get_comment($comment_ID);
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$comment_content = $comment->comment_content;
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$hash = md5($comment_content);
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global $oai_moderation_results;
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if (isset($oai_moderation_results[$hash])) {
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$result = $oai_moderation_results[$hash];
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update_comment_meta($comment_ID, '_oai_moderation_result', $result);
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update_comment_meta($comment_ID, '_oai_moderation_flagged', $result['flagged'] ? 'pending' : 'ok');
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// Remove from global variable
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unset($oai_moderation_results[$hash]);
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}
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}
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function oai_moderate_text($text) {
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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// API key not set; skip moderation
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return array(); // Return an empty array indicating no moderation
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}
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$endpoint = 'https://api.openai.com/v1/moderations';
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$data = array(
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'model' => 'omni-moderation-latest',
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'input' => array(
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array(
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'type' => 'text',
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'text' => $text,
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),
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),
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);
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$args = array(
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'headers' => array(
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'Content-Type' => 'application/json',
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'Authorization' => 'Bearer ' . $api_key,
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),
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'body' => wp_json_encode($data),
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'timeout' => 60,
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);
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$response = wp_remote_post($endpoint, $args);
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if (is_wp_error($response)) {
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// For graceful failure, return an empty array
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return array();
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}
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$body = wp_remote_retrieve_body($response);
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$result = json_decode($body, true);
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if (isset($result['results'][0])) {
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return $result['results'][0];
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} else {
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// Invalid response; return an empty array
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return array();
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}
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}
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/**
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* Admin Columns for Media and Comments
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*/
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// Add a custom column to the media library
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add_filter('manage_media_columns', 'oai_add_media_column');
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function oai_add_media_column($columns) {
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$columns['oai_moderation'] = __('Moderation', 'oai');
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return $columns;
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}
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add_action('manage_media_custom_column', 'oai_media_column_content', 10, 2);
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function oai_media_column_content($column_name, $post_ID) {
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if ($column_name == 'oai_moderation') {
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$flagged = get_post_meta($post_ID, '_oai_moderation_flagged', true);
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if ($flagged) {
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echo '<span style="color:red;">' . __('Flagged', 'oai') . '</span>';
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} else {
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echo '<span style="color:green;">' . __('OK', 'oai') . '</span>';
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}
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}
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}
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// Add a custom column to the comments list
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add_filter('manage_edit-comments_columns', 'oai_add_comments_column');
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function oai_add_comments_column($columns) {
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$columns['oai_moderation'] = __('Moderation', 'oai');
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return $columns;
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}
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add_action('manage_comments_custom_column', 'oai_comments_column_content', 10, 2);
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function oai_comments_column_content($column_name, $comment_ID) {
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if ($column_name == 'oai_moderation') {
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$flagged = get_comment_meta($comment_ID, '_oai_moderation_flagged', true);
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if ($flagged === 'pending') {
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echo '<span style="color:orange;">' . __('Pending Approval', 'oai') . '</span>';
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} elseif ($flagged === 'flagged') {
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echo '<span style="color:red;">' . __('Flagged', 'oai') . '</span>';
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} else {
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echo '<span style="color:green;">' . __('OK', 'oai') . '</span>';
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}
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}
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}
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/**
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* Display Moderation Details in Admin Screens
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*/
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// Add moderation info to the attachment edit screen
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add_filter('attachment_fields_to_edit', 'oai_attachment_fields', 10, 2);
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function oai_attachment_fields($form_fields, $post) {
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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// API key not set; do not display moderation fields
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return $form_fields;
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}
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$flagged = get_post_meta($post->ID, '_oai_moderation_flagged', true);
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$moderation_result = get_post_meta($post->ID, '_oai_moderation_result', true);
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if ($flagged) {
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$form_fields['oai_moderation'] = array(
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'label' => __('OpenAI Moderation', 'oai'),
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'input' => 'html',
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'html' => '<span style="color:red;">' . __('This attachment has been flagged by OpenAI Moderation.', 'oai') . '</span>',
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'helps' => __('Flagged content is blocked from being served to users.', 'oai'),
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);
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} else {
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$form_fields['oai_moderation'] = array(
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'label' => __('OpenAI Moderation', 'oai'),
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'input' => 'html',
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'html' => '<span style="color:green;">' . __('This attachment passed OpenAI Moderation.', 'oai') . '</span>',
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);
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}
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if ($moderation_result) {
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$form_fields['oai_moderation_result'] = array(
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'label' => __('Moderation Details', 'oai'),
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'input' => 'html',
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'html' => '<pre>' . esc_html(print_r($moderation_result, true)) . '</pre>',
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);
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}
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return $form_fields;
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}
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// Add a meta box to the comment edit screen for moderation details
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add_action('add_meta_boxes_comment', 'oai_add_comment_meta_box');
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function oai_add_comment_meta_box() {
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add_meta_box(
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'oai_comment_moderation',
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__('OpenAI Moderation Details', 'oai'),
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'oai_comment_moderation_meta_box',
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'comment',
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'normal',
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'high'
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);
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}
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function oai_comment_moderation_meta_box($comment) {
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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// API key not set; do not display moderation details
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return;
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}
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$moderation_result = get_comment_meta($comment->comment_ID, '_oai_moderation_result', true);
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$flagged = get_comment_meta($comment->comment_ID, '_oai_moderation_flagged', true);
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if ($flagged) {
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echo '<p><strong>' . __('Status:', 'oai') . '</strong> ';
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if ($flagged === 'pending') {
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echo '<span style="color:orange;">' . __('Pending Approval', 'oai') . '</span>';
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} elseif ($flagged === 'flagged') {
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echo '<span style="color:red;">' . __('Flagged', 'oai') . '</span>';
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}
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echo '</p>';
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if ($moderation_result) {
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echo '<h4>' . __('Moderation Details', 'oai') . '</h4>';
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echo '<pre>' . esc_html(print_r($moderation_result, true)) . '</pre>';
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}
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} else {
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echo '<p><span style="color:green;">' . __('This comment passed OpenAI Moderation.', 'oai') . '</span></p>';
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}
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}
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/**
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* Settings Page
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*/
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// Add settings page under Settings menu
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add_action('admin_menu', 'oai_add_admin_menu');
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function oai_add_admin_menu() {
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add_options_page(
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__('OpenAI Moderation', 'oai'),
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__('OpenAI Moderation', 'oai'),
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'manage_options',
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'openai-moderation',
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'oai_options_page'
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);
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}
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function oai_options_page() {
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?>
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<div class="wrap">
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<h1><?php esc_html_e('OpenAI Moderation Settings', 'oai'); ?></h1>
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<form method="post" action="options.php">
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<?php
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settings_fields('oai_options_group');
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do_settings_sections('openai-moderation');
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submit_button();
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?>
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</form>
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</div>
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<?php
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}
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// Initialize settings
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add_action('admin_init', 'oai_settings_init');
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function oai_settings_init() {
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register_setting('oai_options_group', 'oai_api_key');
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add_settings_section(
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'oai_settings_section',
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__('OpenAI API Settings', 'oai'),
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'oai_settings_section_callback',
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'openai-moderation'
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);
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add_settings_field(
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'oai_api_key_field',
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__('OpenAI API Key', 'oai'),
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'oai_api_key_render',
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'openai-moderation',
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'oai_settings_section'
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);
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}
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function oai_settings_section_callback() {
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echo '<p>' . esc_html__('Enter your OpenAI API key to enable moderation.', 'oai') . '</p>';
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}
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function oai_api_key_render() {
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$api_key = get_option('oai_api_key');
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?>
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<input type="text" name="oai_api_key" value="<?php echo esc_attr($api_key); ?>" size="50">
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<?php
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}
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// Display admin notice if API key is not set
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add_action('admin_notices', 'oai_admin_notices');
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function oai_admin_notices() {
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if (!current_user_can('manage_options')) {
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return;
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}
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// Check if we're on the OpenAI Moderation settings page
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$screen = get_current_screen();
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if ($screen->id !== 'settings_page_openai-moderation') {
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return;
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}
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$api_key = get_option('oai_api_key');
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if (!$api_key) {
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echo '<div class="notice notice-warning is-dismissible">
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<p>' . __('OpenAI API key is not set. Moderation features are disabled until you enter a valid API key.', 'oai') . '</p>
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</div>';
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}
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}
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