File: /home/parhudrw/alicreates.com/wp-content/plugins/microsoft-clarity/includes/brandagent-endpoint.php
<?php
/**
* Brand Agent Endpoint Handler
*
* Handles proxying requests from the frontend to the BrandAgent backend server
* with HMAC authentication.
*
* @package MicrosoftClarity
* @since 0.10.21
*/
// Exit if accessed directly
defined( 'ABSPATH' ) || exit;
/**
* Brand Agent Endpoint Handler Class
*/
class BrandAgent_Endpoint {
/**
* Handle incoming API requests
*/
public static function handle_request() {
$path = get_query_var( 'brandagent_path' );
if ( $path === 'api/config/read' ) {
self::handle_config_read();
}
if ( $path === 'api/v1/init' ) {
self::handle_init();
}
if ( $path === 'api/config/update' ) {
self::handle_config_update();
}
if ( $path === 'api/config/status' ) {
self::handle_config_status();
}
}
/**
* Handle api/config/read endpoint
* Proxies config requests to the BrandAgent backend
*/
private static function handle_config_read() {
// Get HMAC secret for this specific store (decrypted from wp_options)
$store_url = home_url();
$secret_key = brandagent_get_hmac_secret();
if ( ! $secret_key ) {
wp_send_json_error( array( 'message' => 'HMAC secret not found. Please complete onboarding.' ), 401 );
}
// Generate HMAC signature for this request
$client_id = brandagent_get_client_id();
if ( ! $client_id ) {
wp_send_json_error( array( 'message' => 'No clientId provided' ), 400 );
}
$timestamp = time();
$signature = brandagent_generate_hmac_signature( $client_id, $timestamp, $secret_key );
// Call the config endpoint directly with HMAC parameters
$config_url = BrandAgent_Config::get_backend_base_url() . '/api/config/read';
// Pass through all the original request parameters
$config_query = $_GET;
// Handle clientInformation separately to avoid double escaping
$client_info = '';
if ( isset( $config_query['clientInformation'] ) ) {
// Get the raw value and clean it up
$raw_client_info = $config_query['clientInformation'];
// Remove any existing escaping
$clean_json = stripslashes( $raw_client_info );
// Validate it's valid JSON
$decoded = json_decode( $clean_json, true );
if ( $decoded !== null ) {
// Re-encode as clean JSON
$clean_json = json_encode( $decoded, JSON_UNESCAPED_SLASHES );
}
// URL encode it properly
$client_info = '&clientInformation=' . rawurlencode( $clean_json );
unset( $config_query['clientInformation'] ); // Remove from main query
}
// Build the main query without clientInformation
$config_url_with_params = $config_url;
if ( ! empty( $config_query ) ) {
$config_url_with_params .= '?' . http_build_query( $config_query );
}
$config_url_with_params .= $client_info;
// Set up headers that ConfigController might need
$config_headers = array(
'Content-Type' => 'application/json',
'Accept' => 'application/json',
'User-Agent' => 'BrandAgent-WordPress-Plugin/1.0',
'ngrok-skip-browser-warning' => 'true', // Bypass ngrok browser warning
'X-WooCommerce-Client-Id' => $client_id,
'X-WooCommerce-Store-Url' => $store_url,
'X-WooCommerce-Signature' => $signature,
'X-WooCommerce-Timestamp' => (string) $timestamp,
);
// Add any existing headers from the original request that might be needed
if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) {
$config_headers['Accept'] = $_SERVER['HTTP_ACCEPT'];
}
if ( isset( $_SERVER['HTTP_USER_AGENT'] ) ) {
$config_headers['User-Agent'] = $_SERVER['HTTP_USER_AGENT'];
}
$config_response = wp_remote_get(
$config_url_with_params,
array(
'timeout' => 30,
'headers' => $config_headers,
)
);
if ( is_wp_error( $config_response ) ) {
error_log( 'BrandAgent: Failed to get client config: ' . $config_response->get_error_message() );
wp_send_json_error( array( 'message' => 'Failed to get client configuration' ), 502 );
}
$config_status_code = wp_remote_retrieve_response_code( $config_response );
$config_body = wp_remote_retrieve_body( $config_response );
if ( $config_status_code === 200 ) {
// Return the actual client configuration from ConfigController
header( 'Content-Type: application/json' );
echo $config_body;
exit;
} else {
wp_send_json_error( array( 'message' => 'Failed to retrieve configuration' ), $config_status_code );
}
}
/**
* Handle api/v1/init endpoint
* Proxies SSE stream requests to the BrandAgent backend
*/
private static function handle_init() {
// Get HMAC secret for this specific store (decrypted from wp_options)
$store_url = home_url();
$secret_key = brandagent_get_hmac_secret();
if ( ! $secret_key ) {
wp_send_json_error( array( 'message' => 'HMAC secret not found. Please complete onboarding.' ), 401 );
}
// Generate HMAC signature for this request
$client_id = brandagent_get_client_id();
if ( ! $client_id ) {
wp_send_json_error( array( 'message' => 'No clientId provided' ), 400 );
}
$timestamp = time();
$signature = brandagent_generate_hmac_signature( $client_id, $timestamp, $secret_key );
// Call the init endpoint with HMAC parameters
$init_url = BrandAgent_Config::get_backend_base_url() . '/api/v1/init';
// Pass through all the original request parameters
$init_query = $_GET;
// Handle clientInformation separately to avoid double escaping
$client_info = '';
if ( isset( $init_query['clientInformation'] ) ) {
// Get the raw value and clean it up
$raw_client_info = $init_query['clientInformation'];
// Remove any existing escaping
$clean_json = stripslashes( $raw_client_info );
// Validate it's valid JSON
$decoded = json_decode( $clean_json, true );
if ( $decoded !== null ) {
// Re-encode as clean JSON
$clean_json = json_encode( $decoded, JSON_UNESCAPED_SLASHES );
}
// URL encode it properly
$client_info = '&clientInformation=' . rawurlencode( $clean_json );
unset( $init_query['clientInformation'] ); // Remove from main query
}
// Build the main query without clientInformation
$init_url_with_params = $init_url;
if ( ! empty( $init_query ) ) {
$init_url_with_params .= '?' . http_build_query( $init_query );
}
$init_url_with_params .= $client_info;
// Set up headers for SSE request
$init_headers = array(
'Accept' => 'text/event-stream',
'Cache-Control' => 'no-cache',
'User-Agent' => 'BrandAgent-WordPress-Plugin/1.0',
'ngrok-skip-browser-warning' => 'true', // Bypass ngrok browser warning
'X-WooCommerce-Client-Id' => $client_id,
'X-WooCommerce-Store-Url' => $store_url,
'X-WooCommerce-Signature' => $signature,
'X-WooCommerce-Timestamp' => (string) $timestamp,
);
// Add any existing headers from the original request that might be needed
if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) {
$init_headers['Accept'] = $_SERVER['HTTP_ACCEPT'];
}
if ( isset( $_SERVER['HTTP_USER_AGENT'] ) ) {
$init_headers['User-Agent'] = $_SERVER['HTTP_USER_AGENT'];
}
$init_response = wp_remote_get(
$init_url_with_params,
array(
'timeout' => 30,
'headers' => $init_headers,
)
);
if ( is_wp_error( $init_response ) ) {
error_log( 'BrandAgent: Failed to initialize chat: ' . $init_response->get_error_message() );
wp_send_json_error( array( 'message' => 'Failed to initialize chat' ), 502 );
}
$init_status_code = wp_remote_retrieve_response_code( $init_response );
$init_body = wp_remote_retrieve_body( $init_response );
if ( $init_status_code === 200 ) {
// Set SSE headers for the response
header( 'Content-Type: text/event-stream' );
header( 'Cache-Control: no-cache' );
header( 'Connection: keep-alive' );
echo $init_body;
exit;
} else {
wp_send_json_error( array( 'message' => 'Failed to initialize chat' ), $init_status_code );
}
}
/**
* Handle api/config/update endpoint
* Receives configuration updates from the backend server
*/
private static function handle_config_update() {
// Only accept POST requests
if ( $_SERVER['REQUEST_METHOD'] !== 'POST' ) {
wp_send_json_error( array( 'message' => 'Method not allowed' ), 405 );
}
// Get authentication headers
$signature = isset( $_SERVER['HTTP_X_BA_SIGNATURE'] )
? sanitize_text_field( $_SERVER['HTTP_X_BA_SIGNATURE'] )
: '';
$timestamp = isset( $_SERVER['HTTP_X_BA_TIMESTAMP'] )
? sanitize_text_field( $_SERVER['HTTP_X_BA_TIMESTAMP'] )
: '';
$store_url_header = isset( $_SERVER['HTTP_X_BA_STORE_URL'] )
? sanitize_text_field( $_SERVER['HTTP_X_BA_STORE_URL'] )
: '';
// Validate required headers present
if ( empty( $signature ) || empty( $timestamp ) || empty( $store_url_header ) ) {
error_log( 'BrandAgent: Missing required authentication headers' );
wp_send_json_error( array( 'message' => 'Missing authentication headers' ), 401 );
}
// Verify store URL matches this site
if ( $store_url_header !== home_url() ) {
error_log( 'BrandAgent: Store URL mismatch. Expected: ' . home_url() . ', Got: ' . $store_url_header );
wp_send_json_error( array( 'message' => 'Store URL mismatch' ), 403 );
}
// Get raw request body
$request_body = file_get_contents( 'php://input' );
// Verify HMAC signature
if ( ! brandagent_verify_incoming_hmac_signature( $signature, $timestamp, $request_body ) ) {
error_log( 'BrandAgent: HMAC signature verification failed' );
wp_send_json_error( array( 'message' => 'Invalid signature' ), 401 );
}
// Parse request body
$data = json_decode( $request_body, true );
if ( json_last_error() !== JSON_ERROR_NONE ) {
wp_send_json_error( array( 'message' => 'Invalid JSON body' ), 400 );
}
// Handle BAInjectFrontendScript update
if ( isset( $data['BAInjectFrontendScript'] ) ) {
$old_value = get_option( 'BAInjectFrontendScript', 'false' );
$new_value = $data['BAInjectFrontendScript'] === true || $data['BAInjectFrontendScript'] === 'true';
update_option( 'BAInjectFrontendScript', $new_value ? 'true' : 'false' );
error_log( 'BrandAgent: BAInjectFrontendScript updated to: ' . ( $new_value ? 'true' : 'false' ) );
// If changed to true and agent is enabled, create webhooks and trigger sync
if ( $old_value !== 'true' && $new_value && get_option( 'BAOauthSuccess' ) == 1 ) {
// Complete onboarding (HMAC-signed request through Clarity proxy)
$clarity_domain = BrandAgent_Config::get_clarity_server_url();
$complete_onboarding_endpoint = $clarity_domain . '/woocommerce/complete-onboarding';
$response = brandagent_sign_outbound_request( $complete_onboarding_endpoint, wp_json_encode( array( 'storeUrl' => home_url() ) ) );
if ( is_wp_error( $response ) ) {
error_log( 'BrandAgent: Failed to notify complete-onboarding: ' . $response->get_error_message() );
} else {
$status_code = wp_remote_retrieve_response_code( $response );
if ( $status_code === 200 ) {
// Create/update all webhooks only on successful onboarding
if ( class_exists( 'BrandAgent_Webhooks' ) ) {
$results = BrandAgent_Webhooks::create_webhooks();
error_log( 'BrandAgent: Webhooks created on store approval: ' . print_r( $results, true ) );
}
} else {
error_log( 'BrandAgent: complete-onboarding returned status ' . $status_code . ', skipping webhook creation' );
}
}
}
wp_send_json_success( array(
'message' => 'Configuration updated',
'BAInjectFrontendScript' => $new_value ? 'true' : 'false'
) );
}
wp_send_json_error( array( 'message' => 'No valid configuration key provided' ), 400 );
}
/**
* Handle api/config/status endpoint
* Returns current configuration values (read-only, no auth required)
*/
private static function handle_config_status() {
$ba_inject_enabled = get_option( 'BAInjectFrontendScript', 'false' );
$ba_oauth_success = get_option( 'BAOauthSuccess', '0' );
wp_send_json_success( array(
'BAInjectFrontendScript' => $ba_inject_enabled,
'BAOauthSuccess' => $ba_oauth_success,
) );
}
}
// Run the handler immediately when file is included
BrandAgent_Endpoint::handle_request();
ob_start();
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