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examples/protocols/http(s)_server: use common network component

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This commit is contained in:
Ivan Grokhotkov
2018-11-21 00:42:37 +08:00
committed by bot
parent 6548afcf49
commit a5b0f5d6ed
27 changed files with 272 additions and 424 deletions
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120
examples/protocols/http_server/simple/main/main.c
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@@ -8,29 +8,26 @@
*/
#include <esp_wifi.h>
#include <esp_event_loop.h>
#include <esp_event.h>
#include <esp_log.h>
#include <esp_system.h>
#include <nvs_flash.h>
#include <sys/param.h>
#include "nvs_flash.h"
#include "tcpip_adapter.h"
#include "esp_eth.h"
#include "protocol_examples_common.h"
#include <esp_http_server.h>
/* A simple example that demonstrates how to create GET and POST
* handlers for the web server.
* The examples use simple WiFi configuration that you can set via
* 'make menuconfig'.
* If you'd rather not, just change the below entries to strings
* with the config you want -
* ie. #define EXAMPLE_WIFI_SSID "mywifissid"
*/
#define EXAMPLE_WIFI_SSID CONFIG_WIFI_SSID
#define EXAMPLE_WIFI_PASS CONFIG_WIFI_PASSWORD
*/
static const char *TAG="APP";
static const char *TAG = "example";
/* An HTTP GET handler */
esp_err_t hello_get_handler(httpd_req_t *req)
static esp_err_t hello_get_handler(httpd_req_t *req)
{
char* buf;
size_t buf_len;
@@ -104,7 +101,7 @@ esp_err_t hello_get_handler(httpd_req_t *req)
return ESP_OK;
}
httpd_uri_t hello = {
static const httpd_uri_t hello = {
.uri = "/hello",
.method = HTTP_GET,
.handler = hello_get_handler,
@@ -114,7 +111,7 @@ httpd_uri_t hello = {
};
/* An HTTP POST handler */
esp_err_t echo_post_handler(httpd_req_t *req)
static esp_err_t echo_post_handler(httpd_req_t *req)
{
char buf[100];
int ret, remaining = req->content_len;
@@ -145,7 +142,7 @@ esp_err_t echo_post_handler(httpd_req_t *req)
return ESP_OK;
}
httpd_uri_t echo = {
static const httpd_uri_t echo = {
.uri = "/echo",
.method = HTTP_POST,
.handler = echo_post_handler,
@@ -182,7 +179,7 @@ esp_err_t http_404_error_handler(httpd_req_t *req, httpd_err_code_t err)
/* An HTTP PUT handler. This demonstrates realtime
* registration and deregistration of URI handlers
*/
esp_err_t ctrl_put_handler(httpd_req_t *req)
static esp_err_t ctrl_put_handler(httpd_req_t *req)
{
char buf;
int ret;
@@ -215,14 +212,14 @@ esp_err_t ctrl_put_handler(httpd_req_t *req)
return ESP_OK;
}
httpd_uri_t ctrl = {
static const httpd_uri_t ctrl = {
.uri = "/ctrl",
.method = HTTP_PUT,
.handler = ctrl_put_handler,
.user_ctx = NULL
};
httpd_handle_t start_webserver(void)
static httpd_handle_t start_webserver(void)
{
httpd_handle_t server = NULL;
httpd_config_t config = HTTPD_DEFAULT_CONFIG();
@@ -242,69 +239,60 @@ httpd_handle_t start_webserver(void)
return NULL;
}
void stop_webserver(httpd_handle_t server)
static void stop_webserver(httpd_handle_t server)
{
// Stop the httpd server
httpd_stop(server);
}
static esp_err_t event_handler(void *ctx, system_event_t *event)
static void disconnect_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
httpd_handle_t *server = (httpd_handle_t *) ctx;
switch(event->event_id) {
case SYSTEM_EVENT_STA_START:
ESP_LOGI(TAG, "SYSTEM_EVENT_STA_START");
ESP_ERROR_CHECK(esp_wifi_connect());
break;
case SYSTEM_EVENT_STA_GOT_IP:
ESP_LOGI(TAG, "SYSTEM_EVENT_STA_GOT_IP");
ESP_LOGI(TAG, "Got IP: '%s'",
ip4addr_ntoa(&event->event_info.got_ip.ip_info.ip));
/* Start the web server */
if (*server == NULL) {
*server = start_webserver();
}
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
ESP_LOGI(TAG, "SYSTEM_EVENT_STA_DISCONNECTED");
ESP_ERROR_CHECK(esp_wifi_connect());
/* Stop the web server */
if (*server) {
stop_webserver(*server);
*server = NULL;
}
break;
default:
break;
httpd_handle_t* server = (httpd_handle_t*) arg;
if (*server) {
ESP_LOGI(TAG, "Stopping webserver");
stop_webserver(*server);
*server = NULL;
}
return ESP_OK;
}
static void initialise_wifi(void *arg)
static void connect_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
tcpip_adapter_init();
ESP_ERROR_CHECK(esp_event_loop_init(event_handler, arg));
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
wifi_config_t wifi_config = {
.sta = {
.ssid = EXAMPLE_WIFI_SSID,
.password = EXAMPLE_WIFI_PASS,
},
};
ESP_LOGI(TAG, "Setting WiFi configuration SSID %s...", wifi_config.sta.ssid);
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
ESP_ERROR_CHECK(esp_wifi_start());
httpd_handle_t* server = (httpd_handle_t*) arg;
if (*server == NULL) {
ESP_LOGI(TAG, "Starting webserver");
*server = start_webserver();
}
}
void app_main()
{
static httpd_handle_t server = NULL;
ESP_ERROR_CHECK(nvs_flash_init());
initialise_wifi(&server);
tcpip_adapter_init();
ESP_ERROR_CHECK(esp_event_loop_create_default());
/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
* Read "Establishing Wi-Fi or Ethernet Connection" section in
* examples/protocols/README.md for more information about this function.
*/
ESP_ERROR_CHECK(example_connect());
/* Register event handlers to stop the server when Wi-Fi or Ethernet is disconnected,
* and re-start it upon connection.
*/
#ifdef CONFIG_EXAMPLE_CONNECT_WIFI
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &connect_handler, &server));
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &disconnect_handler, &server));
#endif // CONFIG_EXAMPLE_CONNECT_WIFI
#ifdef CONFIG_EXAMPLE_CONNECT_ETHERNET
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &connect_handler, &server));
ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ETHERNET_EVENT_DISCONNECTED, &disconnect_handler, &server));
#endif // CONFIG_EXAMPLE_CONNECT_ETHERNET
/* Start the server for the first time */
server = start_webserver();
}