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ESP32-Mesh-OTA
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added auth

This commit is contained in:
Hendrik Schutter 2021-01-03 18:19:54 +01:00
parent 4ec9fecee5
commit a787a18d21
1 changed files with 108 additions and 129 deletions
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237
main/https_mbedtls_example_main.c
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@ -1,26 +1,3 @@
/* HTTPS GET Example using plain mbedTLS sockets
*
* Contacts the howsmyssl.com API via TLS v1.2 and reads a JSON
* response.
*
* Adapted from the ssl_client1 example in mbedtls.
*
* Original Copyright (C) 2006-2016, ARM Limited, All Rights Reserved, Apache 2.0 License.
* Additions Copyright (C) Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD, Apache 2.0 License.
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string.h>
#include <stdlib.h>
#include "freertos/FreeRTOS.h"
@ -58,9 +35,10 @@
static const char *TAG = "example";
static const char *REQUEST = "GET " WEB_URL " HTTP/1.1\r\n"
"Host: "WEB_SERVER"\r\n"
"User-Agent: esp-idf/1.0 esp32\r\n"
"\r\n";
"Host: "WEB_SERVER"\r\n"
"User-Agent: esp-idf/1.0 esp32\r\n"
"Authorization: Basic b3RhOnB3\r\n" //base64("username:password")
"\r\n";
static void https_get_task(void *pvParameters)
@ -101,7 +79,7 @@ static void https_get_task(void *pvParameters)
ESP_LOGI(TAG, "Setting hostname for TLS session...");
/* Hostname set here should match CN in server certificate */
/* Hostname set here should match CN in server certificate */
if((ret = mbedtls_ssl_set_hostname(&ssl, WEB_SERVER)) != 0)
{
ESP_LOGE(TAG, "mbedtls_ssl_set_hostname returned -0x%x", -ret);
@ -119,17 +97,9 @@ static void https_get_task(void *pvParameters)
goto exit;
}
/* MBEDTLS_SSL_VERIFY_OPTIONAL is bad for security, in this example it will print
a warning if CA verification fails but it will continue to connect.
You should consider using MBEDTLS_SSL_VERIFY_REQUIRED in your own code.
*/
mbedtls_ssl_conf_authmode(&conf, MBEDTLS_SSL_VERIFY_OPTIONAL);
mbedtls_ssl_conf_authmode(&conf, MBEDTLS_SSL_VERIFY_REQUIRED);
mbedtls_ssl_conf_ca_chain(&conf, &cacert, NULL);
mbedtls_ssl_conf_rng(&conf, mbedtls_ctr_drbg_random, &ctr_drbg);
#ifdef CONFIG_MBEDTLS_DEBUG
mbedtls_esp_enable_debug_log(&conf, CONFIG_MBEDTLS_DEBUG_LEVEL);
#endif
if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0)
{
@ -137,127 +107,136 @@ static void https_get_task(void *pvParameters)
goto exit;
}
mbedtls_net_init(&server_fd);
mbedtls_net_init(&server_fd);
ESP_LOGI(TAG, "Connecting to %s:%s...", WEB_SERVER, WEB_PORT);
ESP_LOGI(TAG, "Connecting to %s:%s...", WEB_SERVER, WEB_PORT);
if ((ret = mbedtls_net_connect(&server_fd, WEB_SERVER,
WEB_PORT, MBEDTLS_NET_PROTO_TCP)) != 0)
if ((ret = mbedtls_net_connect(&server_fd, WEB_SERVER,
WEB_PORT, MBEDTLS_NET_PROTO_TCP)) != 0)
{
ESP_LOGE(TAG, "mbedtls_net_connect returned -%x", -ret);
goto exit;
}
ESP_LOGI(TAG, "Connected.");
mbedtls_ssl_set_bio(&ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL);
ESP_LOGI(TAG, "Performing the SSL/TLS handshake...");
while ((ret = mbedtls_ssl_handshake(&ssl)) != 0)
{
if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE)
{
ESP_LOGE(TAG, "mbedtls_net_connect returned -%x", -ret);
ESP_LOGE(TAG, "mbedtls_ssl_handshake returned -0x%x", -ret);
goto exit;
}
}
ESP_LOGI(TAG, "Connected.");
ESP_LOGI(TAG, "Verifying peer X.509 certificate...");
mbedtls_ssl_set_bio(&ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL);
if ((flags = mbedtls_ssl_get_verify_result(&ssl)) != 0)
{
/* In real life, we probably want to close connection if ret != 0 */
ESP_LOGW(TAG, "Failed to verify peer certificate!");
bzero(buf, sizeof(buf));
mbedtls_x509_crt_verify_info(buf, sizeof(buf), " ! ", flags);
ESP_LOGW(TAG, "verification info: %s", buf);
}
else {
ESP_LOGI(TAG, "Certificate verified.");
}
ESP_LOGI(TAG, "Performing the SSL/TLS handshake...");
ESP_LOGI(TAG, "Cipher suite is %s", mbedtls_ssl_get_ciphersuite(&ssl));
while ((ret = mbedtls_ssl_handshake(&ssl)) != 0)
{
if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE)
{
ESP_LOGE(TAG, "mbedtls_ssl_handshake returned -0x%x", -ret);
goto exit;
}
ESP_LOGI(TAG, "Writing HTTP request...");
size_t written_bytes = 0;
while(written_bytes < strlen(REQUEST)) {
ret = mbedtls_ssl_write(&ssl,
(const unsigned char *)REQUEST + written_bytes,
strlen(REQUEST) - written_bytes);
if (ret >= 0) {
ESP_LOGI(TAG, "%d bytes written", ret);
written_bytes += ret;
} else if (ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_WANT_READ) {
ESP_LOGE(TAG, "mbedtls_ssl_write returned -0x%x", -ret);
goto exit;
}
}
ESP_LOGI(TAG, "Reading HTTP response...");
//do
/// {
len = sizeof(buf) - 1;
bzero(buf, sizeof(buf));
ret = mbedtls_ssl_read(&ssl, (unsigned char *)buf, len);
if(ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE)
// continue;
if(ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) {
ret = 0;
// break;
}
ESP_LOGI(TAG, "Verifying peer X.509 certificate...");
if(ret < 0)
{
ESP_LOGE(TAG, "mbedtls_ssl_read returned -0x%x", -ret);
// break;
}
if ((flags = mbedtls_ssl_get_verify_result(&ssl)) != 0)
{
/* In real life, we probably want to close connection if ret != 0 */
ESP_LOGW(TAG, "Failed to verify peer certificate!");
bzero(buf, sizeof(buf));
mbedtls_x509_crt_verify_info(buf, sizeof(buf), " ! ", flags);
ESP_LOGW(TAG, "verification info: %s", buf);
}
else {
ESP_LOGI(TAG, "Certificate verified.");
}
if(ret == 0)
{
ESP_LOGI(TAG, "connection closed");
// break;
}
ESP_LOGI(TAG, "Cipher suite is %s", mbedtls_ssl_get_ciphersuite(&ssl));
len = ret;
ESP_LOGI(TAG, "Writing HTTP request...");
ESP_LOGI(TAG, "%d bytes read", len);
size_t written_bytes = 0;
do {
ret = mbedtls_ssl_write(&ssl,
(const unsigned char *)REQUEST + written_bytes,
strlen(REQUEST) - written_bytes);
if (ret >= 0) {
ESP_LOGI(TAG, "%d bytes written", ret);
written_bytes += ret;
} else if (ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_WANT_READ) {
ESP_LOGE(TAG, "mbedtls_ssl_write returned -0x%x", -ret);
goto exit;
}
} while(written_bytes < strlen(REQUEST));
/* Print response directly to stdout as it is read */
for(int i = 0; i < len; i++) {
putchar(buf[i]);
//printf("0x%x ", buf[i]);
}
printf("\n");
ESP_LOGI(TAG, "Reading HTTP response...");
// } while(1);
//do
/// {
len = sizeof(buf) - 1;
bzero(buf, sizeof(buf));
ret = mbedtls_ssl_read(&ssl, (unsigned char *)buf, len);
ret = mbedtls_ssl_close_notify(&ssl);
if(ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE)
// continue;
if(ret != 0)
{
ESP_LOGE(TAG, "mbedtls_ssl_close_notify returned 0x%x", ret);
}
if(ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) {
ret = 0;
// break;
}
exit:
mbedtls_ssl_session_reset(&ssl);
mbedtls_net_free(&server_fd);
if(ret < 0)
{
ESP_LOGE(TAG, "mbedtls_ssl_read returned -0x%x", -ret);
// break;
}
if(ret != 0)
{
mbedtls_strerror(ret, buf, 100);
ESP_LOGE(TAG, "Last error was: -0x%x - %s", -ret, buf);
}
if(ret == 0)
{
ESP_LOGI(TAG, "connection closed");
// break;
}
putchar('\n'); // JSON output doesn't have a newline at end
ESP_LOGE(TAG, "mbedtls_ssl_read returned -0x%x", ret);
len = ret;
ESP_LOGD(TAG, "%d bytes read", len);
/* Print response directly to stdout as it is read */
for(int i = 0; i < len; i++) {
putchar(buf[i]);
}
// } while(1);
static int request_count;
ESP_LOGI(TAG, "Completed %d requests", ++request_count);
mbedtls_ssl_close_notify(&ssl);
exit:
mbedtls_ssl_session_reset(&ssl);
mbedtls_net_free(&server_fd);
ESP_LOGI(TAG, "going into endless loop!");
if(ret != 0)
{
mbedtls_strerror(ret, buf, 100);
ESP_LOGE(TAG, "Last error was: -0x%x - %s", -ret, buf);
}
putchar('\n'); // JSON output doesn't have a newline at end
while(1) {
static int request_count;
ESP_LOGI(TAG, "Completed %d requests", ++request_count);
}
ESP_LOGI(TAG, "going into endless loop!");
while(1){
}
}
void app_main(void)