false,
'error' => 'Invalid JSON body',
),
400
);
}
return $payload;
}
function requireBridgeToken( string $expectedToken ): void {
$providedToken = $_SERVER['HTTP_X_BRIDGE_TOKEN'] ?? '';
if ( ! hash_equals( $expectedToken, $providedToken ) ) {
sendJson(
array(
'ok' => false,
'error' => 'Invalid bridge token',
),
401
);
}
}
function validateReading( array $payload ): void {
$requiredFields = array(
'deviceId',
'connected',
'battery',
'unit',
'probes',
'readingTime',
);
foreach ( $requiredFields as $field ) {
if ( ! array_key_exists( $field, $payload ) ) {
sendJson(
array(
'ok' => false,
'error' => 'Missing required field: ' . $field,
),
422
);
}
}
if ( ! is_array( $payload['probes'] ) ) {
sendJson(
array(
'ok' => false,
'error' => 'The probes field must be an array',
),
422
);
}
}
$path = getRequestPath();
$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
if ( $method === 'POST' && $path === '/api/thermopro/readings' ) {
requireBridgeToken( $token );
$payload = readJsonBody();
validateReading( $payload );
$payload['serverReceivedAt'] = gmdate( DATE_ATOM );
file_put_contents(
$latestPath,
json_encode( $payload, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES )
);
file_put_contents(
$logPath,
json_encode( $payload, JSON_UNESCAPED_SLASHES ) . PHP_EOL,
FILE_APPEND | LOCK_EX
);
sendJson(
array(
'ok' => true,
'receivedAt' => $payload['serverReceivedAt'],
)
);
}
if ( $method === 'GET' && $path === '/api/thermopro/latest' ) {
if ( ! file_exists( $latestPath ) ) {
sendJson(
array(
'ok' => false,
'error' => 'No readings received yet',
),
404
);
}
header( 'Content-Type: application/json' );
readfile( $latestPath );
exit;
}
if ( $method === 'GET' && ( $path === '/' || $path === '/status' ) ) {
$latest = null;
if ( file_exists( $latestPath ) ) {
$latest = json_decode( file_get_contents( $latestPath ), true );
}
header( 'Content-Type: text/html; charset=utf-8' );
?>
ThermoPro Bridge POC
ThermoPro Bridge POC
No readings received yet.
Latest reading received at:
false,
'error' => 'Not found',
),
404
);