224 lines
6.6 KiB
C
224 lines
6.6 KiB
C
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/* Simple HTTP + SSL Server Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <esp_wifi.h>
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#include <esp_event.h>
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#include <esp_log.h>
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#include <esp_system.h>
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#include <nvs_flash.h>
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#include <sys/param.h>
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#include "esp_netif.h"
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#include "esp_eth.h"
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#include "esp_console.h"
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#include "string.h"
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#include "url_decoder.h"
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#include <esp_https_server.h>
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/* A simple example that demonstrates how to create GET and POST
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* handlers and start an HTTPS server.
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*/
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struct csr{
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char* var;
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char* begin;
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char* body;
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char* end;
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};
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static const char *TAG = "server";
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TaskHandle_t xHandleServer = NULL;
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/* An HTTP GET handler */
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static esp_err_t root_get_handler(httpd_req_t *req)
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{
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httpd_resp_set_type(req, "text/html");
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httpd_resp_send(req, "<form action=\"/echo\" method=\"post\">\n"
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" <label for=\"csr\">First name:</label><br>\n"
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" <input type=\"text\" id=\"csr\" name=\"csr\" value=\"John\"><br>\n"
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" <input type=\"submit\" value=\"Submit\">\n"
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"</form>", -1); // -1 = use strlen()
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return ESP_OK;
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}
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static esp_err_t echo_post_handler(httpd_req_t *req)
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{
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char buf[3000];
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int ret, remaining = req->content_len;
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memset(buf,'\0',sizeof(buf));
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while (remaining > 0) {
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/* Read the data for the request */
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if ((ret = httpd_req_recv(req, buf,
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MIN(remaining, sizeof(buf)))) <= 0) {
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if (ret == HTTPD_SOCK_ERR_TIMEOUT) {
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/* Retry receiving if timeout occurred */
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continue;
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}
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return ESP_FAIL;
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}
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/* Send back the same data */
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//const char *url = "http%3A%2F%2ffoo+bar%2fabcd";
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//char out[strlen(url) + 1];
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//printf("length: %d\n", decode(buf, 0));
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//puts(decode(buf, out) < 0 ? "bad string" : out);
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/* Log data received */
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ESP_LOGI(TAG, "=========== RECEIVED DATA ==========");
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ESP_LOGI(TAG, "%.*s", ret, buf);
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ESP_LOGI(TAG, "====================================");
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const char *url = &buf[4];
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char out[strlen(url) + 1];
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printf("length: %d\n", decode(url, 0));
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printf("%s\n",url);
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printf("%s\n",decode(url, out) < 0 ? "bad string" : out);
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httpd_resp_send_chunk(req, out, strlen(out));
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remaining -= ret;
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}
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// End response
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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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static const httpd_uri_t echo = {
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.uri = "/echo",
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.method = HTTP_POST,
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.handler = echo_post_handler,
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.user_ctx = NULL
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};
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static const httpd_uri_t root = {
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.uri = "/",
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.method = HTTP_GET,
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.handler = root_get_handler
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};
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static httpd_handle_t start_webserver(void)
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{
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httpd_handle_t server = NULL;
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// Start the httpd server
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ESP_LOGI(TAG, "Starting server");
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httpd_ssl_config_t conf = HTTPD_SSL_CONFIG_DEFAULT();
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conf.httpd.stack_size = 30000;
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extern const unsigned char cacert_pem_start[] asm("_binary_cacert_pem_start");
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extern const unsigned char cacert_pem_end[] asm("_binary_cacert_pem_end");
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conf.cacert_pem = cacert_pem_start;
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conf.cacert_len = cacert_pem_end - cacert_pem_start;
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extern const unsigned char prvtkey_pem_start[] asm("_binary_prvtkey_pem_start");
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extern const unsigned char prvtkey_pem_end[] asm("_binary_prvtkey_pem_end");
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conf.prvtkey_pem = prvtkey_pem_start;
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conf.prvtkey_len = prvtkey_pem_end - prvtkey_pem_start;
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esp_err_t ret = httpd_ssl_start(&server, &conf);
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if (ESP_OK != ret) {
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ESP_LOGI(TAG, "Error starting server!");
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return NULL;
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}
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// Set URI handlers
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ESP_LOGI(TAG, "Registering URI handlers");
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httpd_register_uri_handler(server, &root);
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httpd_register_uri_handler(server, &echo);
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return server;
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}
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static void stop_webserver(httpd_handle_t server)
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{
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// Stop the httpd server
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httpd_ssl_stop(server);
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}
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static void disconnect_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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httpd_handle_t* server = (httpd_handle_t*) arg;
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if (*server) {
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stop_webserver(*server);
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*server = NULL;
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}
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}
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static void connect_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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httpd_handle_t* server = (httpd_handle_t*) arg;
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if (*server == NULL) {
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*server = start_webserver();
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}
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}
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static void connect(void)
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{
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static httpd_handle_t server = NULL;
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// ESP_ERROR_CHECK(nvs_flash_init());
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// ESP_ERROR_CHECK(esp_netif_init());
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// ESP_ERROR_CHECK(esp_event_loop_create_default());
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/* Register event handlers to start server when Wi-Fi or Ethernet is connected,
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* and stop server when disconnection happens.
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*/
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &connect_handler, &server));
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ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &disconnect_handler, &server));
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#ifdef CONFIG_EXAMPLE_CONNECT_WIFI
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &connect_handler, &server));
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ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &disconnect_handler, &server));
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#endif // CONFIG_EXAMPLE_CONNECT_WIFI
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#ifdef CONFIG_EXAMPLE_CONNECT_ETHERNET
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &connect_handler, &server));
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ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ETHERNET_EVENT_DISCONNECTED, &disconnect_handler, &server));
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#endif // CONFIG_EXAMPLE_CONNECT_ETHERNET
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/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
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* Read "Establishing Wi-Fi or Ethernet Connection" section in
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* examples/protocols/README.md for more information about this function.
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*/
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//ESP_ERROR_CHECK(example_connect());
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//start_webserver();
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/*
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for(;;){
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vTaskDelay(40);
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}
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*/
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}
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static void server_off(){
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vTaskDelete(xHandleServer);
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}
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void register_server(void)
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{
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const esp_console_cmd_t webserver_on = {
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.command = "server_on",
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.help = "HTTPS server",
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.hint = NULL,
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.func = &connect,
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.argtable = NULL
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};
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const esp_console_cmd_t webserver_off = {
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.command = "server_off",
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.help = "HTTPS server",
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.hint = NULL,
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.func = &server_off,
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.argtable = NULL
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};
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ESP_ERROR_CHECK(esp_console_cmd_register(&webserver_on));
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ESP_ERROR_CHECK(esp_console_cmd_register(&webserver_off));
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}
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