model-railway/system-control
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scan for WiFi and schon connection state (loading once)

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Signed-off-by: Peter Siegmund <developer@mars3142.org>
This commit is contained in:
Peter Siegmund
2026-01-06 00:04:09 +01:00
parent ebf0dc6556
commit 28e991cf58
3 changed files with 76 additions and 15 deletions
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87
firmware/components/api-server/src/api_handlers.c
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@@ -1,7 +1,9 @@
#include "api_handlers.h"
#include <cJSON.h>
#include <esp_http_server.h>
#include <esp_log.h>
#include <esp_wifi.h>
#include <string.h>
#include <sys/stat.h>
@@ -67,12 +69,39 @@ esp_err_t api_wifi_scan_handler(httpd_req_t *req)
{
ESP_LOGI(TAG, "GET /api/wifi/scan");
// TODO: Implement actual WiFi scanning
const char *response = "["
"{\"ssid\":\"Network1\",\"rssi\":-45},"
"{\"ssid\":\"Network2\",\"rssi\":-72}"
"]";
return send_json_response(req, response);
wifi_scan_config_t scan_config = {.ssid = NULL, .bssid = NULL, .channel = 0, .show_hidden = true};
esp_err_t err = esp_wifi_scan_start(&scan_config, true);
if (err != ESP_OK)
{
return send_error_response(req, 500, "WiFi scan failed");
}
uint16_t ap_num = 0;
esp_wifi_scan_get_ap_num(&ap_num);
wifi_ap_record_t *ap_list = calloc(ap_num, sizeof(wifi_ap_record_t));
if (!ap_list)
{
return send_error_response(req, 500, "Memory allocation failed");
}
esp_wifi_scan_get_ap_records(&ap_num, ap_list);
cJSON *json = cJSON_CreateArray();
for (int i = 0; i < ap_num; i++)
{
if (ap_list[i].ssid[0] != '\0')
{
cJSON *entry = cJSON_CreateObject();
cJSON_AddStringToObject(entry, "ssid", (const char *)ap_list[i].ssid);
cJSON_AddNumberToObject(entry, "rssi", ap_list[i].rssi);
cJSON_AddItemToArray(json, entry);
}
}
char *response = cJSON_PrintUnformatted(json);
cJSON_Delete(json);
free(ap_list);
esp_err_t res = send_json_response(req, response);
free(response);
return res;
}
esp_err_t api_wifi_config_handler(httpd_req_t *req)
@@ -99,14 +128,44 @@ esp_err_t api_wifi_status_handler(httpd_req_t *req)
{
ESP_LOGI(TAG, "GET /api/wifi/status");
// TODO: Implement actual WiFi status retrieval
const char *response = "{"
"\"connected\":true,"
"\"ssid\":\"NetworkName\","
"\"ip\":\"192.168.1.100\","
"\"rssi\":-45"
"}";
return send_json_response(req, response);
wifi_ap_record_t ap_info;
bool connected = false;
char ssid[33] = "";
char ip[16] = "";
int rssi = 0;
wifi_mode_t mode;
esp_wifi_get_mode(&mode);
if (mode == WIFI_MODE_STA || mode == WIFI_MODE_APSTA)
{
if (esp_wifi_sta_get_ap_info(&ap_info) == ESP_OK)
{
connected = true;
strncpy(ssid, (const char *)ap_info.ssid, sizeof(ssid) - 1);
rssi = ap_info.rssi;
}
esp_netif_t *netif = esp_netif_get_handle_from_ifkey("WIFI_STA_DEF");
if (netif)
{
esp_netif_ip_info_t ip_info;
if (esp_netif_get_ip_info(netif, &ip_info) == ESP_OK)
{
snprintf(ip, sizeof(ip), "%d.%d.%d.%d", esp_ip4_addr1(&ip_info.ip), esp_ip4_addr2(&ip_info.ip),
esp_ip4_addr3(&ip_info.ip), esp_ip4_addr4(&ip_info.ip));
}
}
}
cJSON *json = cJSON_CreateObject();
cJSON_AddBoolToObject(json, "connected", connected);
cJSON_AddStringToObject(json, "ssid", ssid);
cJSON_AddStringToObject(json, "ip", ip);
cJSON_AddNumberToObject(json, "rssi", rssi);
char *response = cJSON_PrintUnformatted(json);
cJSON_Delete(json);
esp_err_t res = send_json_response(req, response);
free(response);
return res;
}
// ============================================================================