ota_service.h

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// Copyright (C) 2026 Douglas Quigg (dstroy0) <dquigg123@gmail.com>
// SPDX-License-Identifier: AGPL-3.0-or-later
 
/**
 * @file ota_service.h
 * @brief Optional authenticated OTA firmware update (DETWS_ENABLE_OTA).
 *
 * Registers a POST endpoint that streams a firmware image straight into the
 * ESP32 `Update` API via the parser's streaming-body hook
 * (http_parser_set_stream_hooks), so the image never has to fit in RAM. On a
 * successful flash the device responds and reboots into the new firmware.
 * Compiled to a no-op stub when DETWS_ENABLE_OTA is 0 or off-Arduino.
 *
 * @author  Douglas Quigg (dstroy0)
 * @date    2026
 */
 
#ifndef DETERMINISTICESPASYNCWEBSERVER_OTA_SERVICE_H
#define DETERMINISTICESPASYNCWEBSERVER_OTA_SERVICE_H
 
#include "ServerConfig.h"
 
class DetWebServer;
 
/**
 * @brief Register an authenticated streaming OTA endpoint.
 *
 * Call after begin(). A `POST @p path` carrying a raw firmware image and valid
 * HTTP Basic credentials is streamed into `Update`; on success the device
 * replies `200` and reboots. Unauthorized or failed uploads get `401` / `400`.
 *
 * @param server  The running server (the route + stream hooks are installed on it).
 * @param path    URL to accept the upload on (e.g. "/update"). Persistent string.
 * @param user    Required HTTP Basic username.
 * @param pass    Required HTTP Basic password.
 *
 * @code
 * curl -u admin:s3cret --data-binary @firmware.bin http://<ip>/update
 * @endcode
 */
void detws_ota_begin(DetWebServer &server, const char *path, const char *user, const char *pass);
 
#endif // DETERMINISTICESPASYNCWEBSERVER_OTA_SERVICE_H