picow_freertos_http_client.c

/**
 * Copyright (c) 2023 Raspberry Pi (Trading) Ltd.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include "pico/cyw43_arch.h"
#include "pico/stdlib.h"
#include "lwip/altcp_tls.h"

#include "lwip/netif.h"

#include "FreeRTOS.h"
#include "task.h"
#include "example_http_client_util.h"

#ifndef RUN_FREERTOS_ON_CORE
#define RUN_FREERTOS_ON_CORE 0
#endif

#define TEST_TASK_PRIORITY ( tskIDLE_PRIORITY + 2UL )
#define TEST_TASK_STACK_SIZE 1024

// Using this url as we know the root cert won't change for a long time
#define HOST "fw-download-alias1.raspberrypi.com"
#define URL_REQUEST "/net_install/boot.sig"

// This is the PUBLIC root certificate exported from a browser
// Note that the newlines are needed
#define TLS_ROOT_CERT_OK "-----BEGIN CERTIFICATE-----\n\
MIIC+jCCAn+gAwIBAgICEAAwCgYIKoZIzj0EAwIwgbcxCzAJBgNVBAYTAkdCMRAw\n\
DgYDVQQIDAdFbmdsYW5kMRIwEAYDVQQHDAlDYW1icmlkZ2UxHTAbBgNVBAoMFFJh\n\
c3BiZXJyeSBQSSBMaW1pdGVkMRwwGgYDVQQLDBNSYXNwYmVycnkgUEkgRUNDIENB\n\
MR0wGwYDVQQDDBRSYXNwYmVycnkgUEkgUm9vdCBDQTEmMCQGCSqGSIb3DQEJARYX\n\
c3VwcG9ydEByYXNwYmVycnlwaS5jb20wIBcNMjExMjA5MTEzMjU1WhgPMjA3MTEx\n\
MjcxMTMyNTVaMIGrMQswCQYDVQQGEwJHQjEQMA4GA1UECAwHRW5nbGFuZDEdMBsG\n\
A1UECgwUUmFzcGJlcnJ5IFBJIExpbWl0ZWQxHDAaBgNVBAsME1Jhc3BiZXJyeSBQ\n\
SSBFQ0MgQ0ExJTAjBgNVBAMMHFJhc3BiZXJyeSBQSSBJbnRlcm1lZGlhdGUgQ0Ex\n\
JjAkBgkqhkiG9w0BCQEWF3N1cHBvcnRAcmFzcGJlcnJ5cGkuY29tMHYwEAYHKoZI\n\
zj0CAQYFK4EEACIDYgAEcN9K6Cpv+od3w6yKOnec4EbyHCBzF+X2ldjorc0b2Pq0\n\
N+ZvyFHkhFZSgk2qvemsVEWIoPz+K4JSCpgPstz1fEV6WzgjYKfYI71ghELl5TeC\n\
byoPY+ee3VZwF1PTy0cco2YwZDAdBgNVHQ4EFgQUJ6YzIqFh4rhQEbmCnEbWmHEo\n\
XAUwHwYDVR0jBBgwFoAUIIAVCSiDPXut23NK39LGIyAA7NAwEgYDVR0TAQH/BAgw\n\
BgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwCgYIKoZIzj0EAwIDaQAwZgIxAJYM+wIM\n\
PC3wSPqJ1byJKA6D+ZyjKR1aORbiDQVEpDNWRKiQ5QapLg8wbcED0MrRKQIxAKUT\n\
v8TJkb/8jC/oBVTmczKlPMkciN+uiaZSXahgYKyYhvKTatCTZb+geSIhc0w/2w==\n\
-----END CERTIFICATE-----\n"

void main_task(__unused void *params) {
    if (cyw43_arch_init()) {
        printf("failed to initialise\n");
        return;
    }

    cyw43_arch_enable_sta_mode();
    printf("Connecting to Wi-Fi...\n");
    if (cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASSWORD, CYW43_AUTH_WPA2_AES_PSK, 30000)) {
        printf("failed to connect.\n");
        exit(1);
    } else {
        printf("Connected.\n");
    }

    static const uint8_t cert_ok[] = TLS_ROOT_CERT_OK;
    static EXAMPLE_HTTP_REQUEST_T req = {0};
    req.hostname = HOST;
    req.url = URL_REQUEST;
    req.headers_fn = http_client_header_print_fn;
    req.recv_fn = http_client_receive_print_fn;
    req.tls_config = altcp_tls_create_config_client(cert_ok, sizeof(cert_ok));

    int pass = http_client_request_sync(cyw43_arch_async_context(), &req);
    altcp_tls_free_config(req.tls_config);
    if (pass != 0) {
        panic("test failed");
    }

    cyw43_arch_deinit();
    panic("Test passed");
}

void vLaunch( void) {
    TaskHandle_t task;
    xTaskCreate(main_task, "TestMainThread", TEST_TASK_STACK_SIZE, NULL, TEST_TASK_PRIORITY, &task);

#if NO_SYS && configUSE_CORE_AFFINITY && configNUM_CORES > 1
    // we must bind the main task to one core (well at least while the init is called)
    // (note we only do this in NO_SYS mode, because cyw43_arch_freertos
    // takes care of it otherwise)
    vTaskCoreAffinitySet(task, 1);
#endif

    /* Start the tasks and timer running. */
    vTaskStartScheduler();
}

int main( void )
{
    stdio_init_all();

    /* Configure the hardware ready to run the demo. */
    const char *rtos_name;
#if ( portSUPPORT_SMP == 1 )
    rtos_name = "FreeRTOS SMP";
#else
    rtos_name = "FreeRTOS";
#endif

#if ( portSUPPORT_SMP == 1 ) && ( configNUM_CORES == 2 )
    printf("Starting %s on both cores:\n", rtos_name);
    vLaunch();
#elif ( RUN_FREERTOS_ON_CORE == 1 )
    printf("Starting %s on core 1:\n", rtos_name);
    multicore_launch_core1(vLaunch);
    while (true);
#else
    printf("Starting %s on core 0:\n", rtos_name);
    vLaunch();
#endif
    return 0;
}