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