kopia lustrzana https://github.com/espressif/esp-idf
103 wiersze
3.0 KiB
C
103 wiersze
3.0 KiB
C
/* HTTPS GET Example using plain mbedTLS sockets
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*
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* Contacts the howsmyssl.com API via TLS v1.2 and reads a JSON
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* response.
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*
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* Adapted from the ssl_client1 example in mbedtls.
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*
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* Original Copyright (C) 2006-2016, ARM Limited, All Rights Reserved, Apache 2.0 License.
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* Additions Copyright (C) Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD, Apache 2.0 License.
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*
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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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 "freertos/event_groups.h"
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#include "esp_wifi.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 "nvs_flash.h"
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#include "protocol_examples_common.h"
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#include "esp_netif.h"
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#include "lwip/err.h"
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#include "lwip/sockets.h"
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#include "lwip/sys.h"
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#include "lwip/netdb.h"
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#include "lwip/dns.h"
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#include "esp_tls.h"
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#include "esp_crt_bundle.h"
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#define MAX_URLS 2
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static const char *web_urls[MAX_URLS] = {
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"https://www.howsmyssl.com/a/check",
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"https://espressif.com",
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};
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static const char *TAG = "example";
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static void https_get_task(void *pvParameters)
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{
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while (1) {
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int conn_count = 0;
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ESP_LOGI(TAG, "Connecting to %d URLs", MAX_URLS);
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for (int i = 0; i < MAX_URLS; i++) {
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esp_tls_cfg_t cfg = {
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.crt_bundle_attach = esp_crt_bundle_attach,
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};
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esp_tls_t *tls = esp_tls_init();
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if (!tls) {
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ESP_LOGE(TAG, "Failed to allocate esp_tls handle!");
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goto end;
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}
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if (esp_tls_conn_http_new_sync(web_urls[i], &cfg, tls) == 1) {
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ESP_LOGI(TAG, "Connection established to %s", web_urls[i]);
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conn_count++;
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} else {
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ESP_LOGE(TAG, "Could not connect to %s", web_urls[i]);
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}
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esp_tls_conn_destroy(tls);
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end:
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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ESP_LOGI(TAG, "Completed %d connections", conn_count);
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ESP_LOGI(TAG, "Starting over again...");
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}
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}
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void app_main(void)
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{
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ESP_ERROR_CHECK(nvs_flash_init());
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
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* Read "Establishing Wi-Fi or Ethernet Connection" section in
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* examples/protocols/README.md for more information about this function.
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*/
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ESP_ERROR_CHECK(example_connect());
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xTaskCreate(&https_get_task, "https_get_task", 8192, NULL, 5, NULL);
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}
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