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path: root/main/routes/settings.cpp
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#include "esp_mac.h"
#include "esp_log.h"
#include "esp_check.h"
#include "esp_wifi.h"

#include "relay.h"
#include "settings.h"
#include "utils.h"
#include "routes.h"

static const char *TAG = "routes/settings";

esp_err_t settings_handler(httpd_req_t *req)
{
    ESP_LOGD(TAG, "settings_handler %s", req->uri);

    char *resp = settings_json();
    ESP_RETURN_ON_FALSE(resp, ESP_ERR_NO_MEM, TAG, "buffer alloc failed");

    httpd_resp_set_type(req, "application/json");
    httpd_resp_sendstr(req, resp);
    return ESP_OK;
}

esp_err_t settings_cloud_handler(httpd_req_t *req)
{
    ESP_LOGD(TAG, "settings_cloud_handler %s", req->uri);

    httpd_resp_set_type(req, "application/json");
    httpd_resp_sendstr(req, "{\"enabled\":false}");
    return ESP_OK;
}

esp_err_t settings_sta_handler(httpd_req_t *req)
{
    ESP_LOGD(TAG, "settings_sta_handler %s", req->uri);

    size_t query_len = httpd_req_get_url_query_len(req) + 1;

    if (query_len > 1)
    {
        char* buf = (char*)malloc(query_len);
        ESP_RETURN_ON_FALSE(buf, ESP_ERR_NO_MEM, TAG, "buffer alloc failed");

        if (httpd_req_get_url_query_str(req, buf, query_len) == ESP_OK)
        {
            char param[64];
            wifi_config_t wifi_cfg;
            ESP_ERROR_CHECK(esp_wifi_get_config(WIFI_IF_STA, &wifi_cfg));

            if (httpd_query_key_value(buf, "ssid", param, sizeof(param)) == ESP_OK)
            {
                ESP_LOGI(TAG, "Found URL query parameter => ssid=%s", param);
                ESP_LOGD(TAG, "Configured ssid %s", param);

                size_t s = sizeof(wifi_cfg.sta.ssid);
                strncpy((char*)wifi_cfg.sta.ssid, param, s);
                wifi_cfg.sta.ssid[s] = '\0';
                ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_cfg));
            }

            if (httpd_query_key_value(buf, "key", param, sizeof(param)) == ESP_OK) {
                ESP_LOGD(TAG, "Configured psk");

                size_t s = sizeof(wifi_cfg.sta.password) - 1;
                strncpy((char*)wifi_cfg.sta.password, param, s);
                wifi_cfg.sta.password[s] = '\0';
                wifi_cfg.sta.threshold.authmode = WIFI_AUTH_WPA2_PSK;
                ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_cfg));
            }
        }

        free(buf);
    }

    char* resp = settings_sta_json();
    ESP_RETURN_ON_FALSE(resp, ESP_ERR_NO_MEM, TAG, "buffer alloc failed");

    httpd_resp_set_type(req, "application/json");
    httpd_resp_sendstr(req, resp);

    return ESP_OK;
}

esp_err_t settings_relay_handler(httpd_req_t *req)
{
    char *resp = settings_relay_json();
    ESP_RETURN_ON_FALSE(resp, ESP_ERR_NO_MEM, TAG, "buffer alloc failed");

    httpd_resp_set_type(req, "application/json");
    httpd_resp_sendstr(req, resp);

    return ESP_OK;
}