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guardar_firma.php
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<?php session_start(); include("../../bd/conexion.php"); header('Content-Type: application/json'); $response = ['success' => false, 'message' => '']; try { if (!isset($_POST['id']) || !isset($_POST['cedula']) || !isset($_POST['firma'])) { throw new Exception('Datos incompletos'); } $id = $_POST['id']; $cedula = $_POST['cedula']; $firma = $_POST['firma']; // Validar que la firma sea una imagen base64 válida if (!preg_match('/^data:image\/(png|jpeg);base64,/', $firma)) { throw new Exception('Formato de firma no válido'); } // Preparar la consulta $query = $conexion->prepare("UPDATE entregasst SET FIRMA = ? WHERE ID = ? AND cedula = ?"); $query->bind_param("sis", $firma, $id, $cedula); if ($query->execute()) { // Guardar el ID de la entrega firmada en la sesión para la redirección $_SESSION['ultimo_id_firmado'] = $id; $response['success'] = true; $response['message'] = 'Firma guardada correctamente'; $response['redirect'] = 'FORMFIRM.PHP?id=' . $id; } else { throw new Exception('Error al guardar en la base de datos: ' . $conexion->error); } } catch (Exception $e) { $response['message'] = $e->getMessage(); } echo json_encode($response);