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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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4
examples/protocols/http_server/simple/CMakeLists.txt
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@@ -2,5 +2,9 @@
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
# (Not part of the boilerplate)
# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(simple)

2
examples/protocols/http_server/simple/Makefile
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@@ -5,5 +5,7 @@
PROJECT_NAME := simple
EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
include $(IDF_PATH)/make/project.mk

5
examples/protocols/http_server/simple/README.md
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@@ -4,10 +4,7 @@ The Example consists of HTTPD server demo with demostration of URI handling :
1. URI \hello for GET command returns "Hello World!" message
2. URI \echo for POST command echoes back the POSTed message
* Configure the project using "make menuconfig" and goto :
* Example Configuration ->
1. WIFI SSID: WIFI network to which your PC is also connected to.
2. WIFI Password: WIFI password
* Run `make menuconfig` (or `idf.py menuconfig` if using CMake build system) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
* In order to test the HTTPD server persistent sockets demo :
1. compile and burn the firmware "make flash"

2
examples/protocols/http_server/simple/http_server_simple_test.py
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@@ -63,7 +63,7 @@ def test_examples_protocol_http_server_simple(env, extra_data):
# Parse IP address of STA
Utility.console_log("Waiting to connect with AP")
got_ip = dut1.expect(re.compile(r"(?:[\s\S]*)Got IP: '(\d+.\d+.\d+.\d+)'"), timeout=120)[0]
got_ip = dut1.expect(re.compile(r"(?:[\s\S]*)IPv4 address: (\d+.\d+.\d+.\d+)"), timeout=30)[0]
got_port = dut1.expect(re.compile(r"(?:[\s\S]*)Starting server on port: '(\d+)'"), timeout=30)[0]
Utility.console_log("Got IP : " + got_ip)

16
examples/protocols/http_server/simple/main/Kconfig.projbuild
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@@ -1,16 +0,0 @@
menu "Example Configuration"
config WIFI_SSID
string "WiFi SSID"
default "myssid"
help
SSID (network name) for the example to connect to.
config WIFI_PASSWORD
string "WiFi Password"
default "mypassword"
help
WiFi password (WPA or WPA2) for the example to use.
Can be left blank if the network has no security set.
endmenu

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();
}