init commit

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>

main/service/webserver.c

@@ -0,0 +1,102 @@
+#include "webserver.h"
+#include <stdio.h>
+#include <string.h>
+#include <sys/param.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/queue.h"
+#include "esp_system.h"
+#include "esp_wifi.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "nvs_flash.h"
+#include "esp_netif.h"
+#include "driver/uart.h"
+#include "esp_http_server.h"
+#include "indicator.h"
+#include "nconfig.h"
+#include "monitor.h"
+#include "wifi.h"
+#include "datalog.h"
+
+#include "lwip/err.h"
+#include "lwip/sockets.h"
+#include "lwip/sys.h"
+
+static const char *TAG = "WEBSERVER";
+
+static esp_err_t index_handler(httpd_req_t *req) {
+    extern const unsigned char index_html_start[] asm("_binary_index_html_gz_start");
+    extern const unsigned char index_html_end[] asm("_binary_index_html_gz_end");
+    const size_t index_html_size = (index_html_end - index_html_start);
+
+    httpd_resp_set_hdr(req, "Content-Encoding", "gzip");
+    httpd_resp_set_type(req, "text/html");
+    httpd_resp_send(req, (const char *)index_html_start, index_html_size);
+
+    return ESP_OK;
+}
+
+static esp_err_t datalog_download_handler(httpd_req_t *req)
+{
+    const char *filepath = datalog_get_path();
+    FILE *f = fopen(filepath, "r");
+    if (f == NULL) {
+        ESP_LOGE(TAG, "Failed to open datalog file for reading");
+        httpd_resp_send_404(req);
+        return ESP_FAIL;
+    }
+
+    httpd_resp_set_type(req, "text/csv");
+    httpd_resp_set_hdr(req, "Content-Disposition", "attachment; filename=\"datalog.csv\"");
+
+    char buffer[1024];
+    size_t bytes_read;
+    while ((bytes_read = fread(buffer, 1, sizeof(buffer), f)) > 0) {
+        if (httpd_resp_send_chunk(req, buffer, bytes_read) != ESP_OK) {
+            ESP_LOGE(TAG, "File sending failed!");
+            fclose(f);
+            httpd_resp_send_chunk(req, NULL, 0);
+            httpd_resp_send_500(req);
+            return ESP_FAIL;
+        }
+    }
+
+    fclose(f);
+    httpd_resp_send_chunk(req, NULL, 0);
+    return ESP_OK;
+}
+
+// HTTP 서버 시작
+void start_webserver(void) {
+    httpd_handle_t server = NULL;
+    httpd_config_t config = HTTPD_DEFAULT_CONFIG();
+    config.stack_size = 1024 * 8;
+    config.max_uri_handlers = 10;
+
+    if (httpd_start(&server, &config) != ESP_OK) {
+        return ;
+    }
+
+    // Index page
+    httpd_uri_t index = {
+        .uri       = "/",
+        .method    = HTTP_GET,
+        .handler   = index_handler,
+        .user_ctx  = NULL
+    };
+    httpd_register_uri_handler(server, &index);
+
+    httpd_uri_t datalog_uri = {
+        .uri       = "/datalog.csv",
+        .method    = HTTP_GET,
+        .handler   = datalog_download_handler,
+        .user_ctx  = NULL
+    };
+    httpd_register_uri_handler(server, &datalog_uri);
+
+    register_wifi_endpoint(server);
+    register_ws_endpoint(server);
+    register_control_endpoint(server);
+    init_status_monitor();
+}