213 lines
4.9 KiB
C
213 lines
4.9 KiB
C
#include "web_server.h"
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#include "device_list.h"
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#include "ping.h"
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#include "esp_http_server.h"
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#include "esp_log.h"
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static const char *TAG = "web_server";
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static esp_err_t main_page_handler(httpd_req_t *req);
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static esp_err_t ping_handler(httpd_req_t *req);
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static esp_err_t send_page_header(httpd_req_t *req);
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static esp_err_t send_device_table(httpd_req_t *req);
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static esp_err_t send_device_row(httpd_req_t *req, const device_info_t *device);
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static esp_err_t send_page_footer(httpd_req_t *req);
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static httpd_handle_t start_webserver(void);
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static void register_http_handlers(httpd_handle_t server);
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static const httpd_uri_t main_uri = {.uri = "/", .method = HTTP_GET, .handler = main_page_handler, .user_ctx = NULL};
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static const httpd_uri_t ping_uri = {.uri = "/ping", .method = HTTP_GET, .handler = ping_handler, .user_ctx = NULL};
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void web_server_init(void)
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{
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httpd_handle_t server_handle = start_webserver();
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if (server_handle != NULL)
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{
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register_http_handlers(server_handle);
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}
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}
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static httpd_handle_t start_webserver(void)
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{
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httpd_config_t config = HTTPD_DEFAULT_CONFIG();
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httpd_handle_t server = NULL;
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if (httpd_start(&server, &config) == ESP_OK)
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{
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ESP_LOGI(TAG, "HTTP server started");
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}
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else
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{
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ESP_LOGE(TAG, "Failed to start http server");
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}
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return server;
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}
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static void register_http_handlers(httpd_handle_t server)
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{
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esp_err_t err = httpd_register_uri_handler(server, &main_uri);
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if (err != ESP_OK)
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{
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ESP_LOGE(TAG, "Failed to register main URI");
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}
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err = httpd_register_uri_handler(server, &ping_uri);
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if (err != ESP_OK)
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{
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ESP_LOGE(TAG, "Failed to register ping URI");
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}
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}
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static esp_err_t main_page_handler(httpd_req_t *req)
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{
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httpd_resp_set_type(req, "text/html");
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esp_err_t err;
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err = send_page_header(req);
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if (err != ESP_OK)
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{
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ESP_LOGE(TAG, "Page header isn't created");
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return err;
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}
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err = send_device_table(req);
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if (err != ESP_OK)
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{
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ESP_LOGE(TAG, "Table isn't created");
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return err;
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}
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err = send_page_footer(req);
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if (err != ESP_OK)
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{
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ESP_LOGE(TAG, "Page footer isn't created");
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return err;
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}
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return httpd_resp_sendstr_chunk(req, NULL);;
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}
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static esp_err_t send_page_header(httpd_req_t *req)
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{
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return httpd_resp_sendstr_chunk(
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req,
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"<!DOCTYPE html>"
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"<html>"
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"<head>"
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"<meta charset=\"UTF-8\">"
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"<title>ARP Monitoring</title>"
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"</head>"
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"<body>"
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"<h1>ARP Monitoring</h1>"
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);
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}
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static esp_err_t send_device_table(httpd_req_t *req)
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{
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esp_err_t err;
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err = httpd_resp_sendstr_chunk(
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req,
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"<form action=\"/ping\" method=\"get\">"
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"<table border=\"1\">"
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"<tr>"
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"<th>Select</th>"
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"<th>IP address</th>"
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"<th>MAC address</th>"
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"<th>Last seen</th>"
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"<th>Status</th>"
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"</tr>"
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);
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for (size_t index = 0; index < device_list_count(); index++)
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{
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const device_info_t *current_device;
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current_device = device_list_get_by_index(index);
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if (current_device == NULL)
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continue;
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err = send_device_row(req, current_device);
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if (err != ESP_OK)
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return err;
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}
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return httpd_resp_sendstr_chunk(
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req,
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"</table>"
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"<br>"
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"<input type=\"submit\" value=\"Ping selected devices\">"
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"</form>"
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);
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}
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static esp_err_t send_device_row(httpd_req_t *req, const device_info_t *device)
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{
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char html[256];
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snprintf(
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html,
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sizeof(html),
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"<tr>"
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"<td>"
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"<input type=\"checkbox\" name=\"mac\" value=\"%02X:%02X:%02X:%02X:%02X:%02X\">"
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"</td>"
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"<td>%u.%u.%u.%u</td>"
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"<td>%02X:%02X:%02X:%02X:%02X:%02X</td>"
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"<td>%lu</td>"
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"<td>%s</td>"
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"</tr>",
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device->mac.addr[0],
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device->mac.addr[1],
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device->mac.addr[2],
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device->mac.addr[3],
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device->mac.addr[4],
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device->mac.addr[5],
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ip4_addr1(&device->ip),
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ip4_addr2(&device->ip),
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ip4_addr3(&device->ip),
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ip4_addr4(&device->ip),
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device->mac.addr[0],
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device->mac.addr[1],
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device->mac.addr[2],
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device->mac.addr[3],
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device->mac.addr[4],
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device->mac.addr[5],
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(unsigned long)device->last_seen,
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device->active ? "Online" : "Offline"
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);
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return httpd_resp_sendstr_chunk(req, html);
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}
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static esp_err_t send_page_footer(httpd_req_t *req)
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{
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return httpd_resp_sendstr_chunk(
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req,
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"</body>"
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"</html>"
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);
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}
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static esp_err_t ping_handler(httpd_req_t *req)
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{
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char query[256];
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if (httpd_req_get_url_query_str(req, query, sizeof(query)) == ESP_OK)
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{
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ping_selected_devices(query);
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}
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return main_page_handler(req);
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} |