82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/**
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* @file HTTPS_Client.h
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* @brief Used to download the OTA image from the server
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* @author Hendrik Schutter
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* @date 20.01.2021
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*
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* Additional Infos: Connects via HTTPS and HTTPS Basic Auth to the Server.
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* Downloads the image in segments
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*/
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#ifndef H_HTTPS_CLIENT
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#define H_HTTPS_CLIENT
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#include <string.h>
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#include <stdlib.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "esp_system.h"
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#include "esp_netif.h"
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#include "mbedtls/platform.h"
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#include "mbedtls/net_sockets.h"
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#include "mbedtls/esp_debug.h"
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#include "mbedtls/ssl.h"
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#include "mbedtls/entropy.h"
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#include "mbedtls/ctr_drbg.h"
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#include "mbedtls/error.h"
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#include "mbedtls/certs.h"
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#include "esp_crt_bundle.h"
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#ifndef CONFIG_OTA_HTTPS_URL
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#define CONFIG_OTA_HTTPS_URL "https://exmaple.com/theImage.bin"
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#endif
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#ifndef CONFIG_OTA_HTTPS_SERVER_PORT
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#define CONFIG_OTA_HTTPS_SERVER_PORT "443"
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#endif
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#ifndef CONFIG_OTA_HTTPS_AUTH
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#define CONFIG_OTA_HTTPS_AUTH "base64(user:password)"
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#endif
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#ifndef CONFIG_OTA_HTTPS_SERVER_COMMON_NAME
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#define CONFIG_OTA_HTTPS_SERVER_COMMON_NAME "exmaple.com"
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#endif
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#define HTTPS_CLIENT_OK 0
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#define HTTPS_CLIENT_ERROR -1
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#define HTTPS_CLIENT_ERROR_INIT_EMBEDTLS -2
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#define HTTPS_CLIENT_ERROR_INIT_CONNECT_TWO_SERVER -3
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#define HTTPS_CLIENT_ERROR_INIT_VALIDATE_SERVER -4
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#define HTTPS_CLIENT_ERROR_INIT_SEND_REQUEST -5
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#define HTTPS_READ_TIMEOUT 1000 //ms
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struct HTTPS_Client
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{
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mbedtls_entropy_context entropy;
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mbedtls_ctr_drbg_context ctr_drbg;
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mbedtls_ssl_context ssl;
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mbedtls_x509_crt cacert;
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mbedtls_ssl_config conf;
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mbedtls_net_context server_fd;
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};
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typedef int32_t https_client_ret_t;
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typedef struct HTTPS_Client HTTPS_Client_t;
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https_client_ret_t errHTTPSClientInitialize(void);
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https_client_ret_t errHTTPSClientConnectToServer(void);
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https_client_ret_t errHTTPSClientValidateServer(void);
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https_client_ret_t errHTTPSClientSendRequest(void);
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https_client_ret_t errHTTPSClientRetrieveData(char* const cpu8Data, const uint32_t* const cpcu32DataLenght, uint32_t* pu32BytesRead);
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https_client_ret_t errHTTPSClientReset(void);
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#endif /* H_HTTPS_CLIENT */
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