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Update de grbl avec un plus grand buffer et un peu de doc en plus

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Geekoid
2019-12-18 21:26:27 +01:00
parent c24dd1bb34
commit dd41d3358a
159 changed files with 38922 additions and 18 deletions
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Grbl_Esp32-master/libraries/arduinoWebSockets/.gitignore vendored Normal file
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# Compiled Object files
*.slo
*.lo
*.o
*.obj
# Precompiled Headers
*.gch
*.pch
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
# Fortran module files
*.mod
# Compiled Static libraries
*.lai
*.la
*.a
*.lib
# Executables
*.exe
*.out
*.app
/tests/webSocketServer/node_modules

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sudo: false
language: bash
os:
- linux
env:
matrix:
- CPU="esp8266" BOARD="esp8266com:esp8266:generic:CpuFrequency=80" IDE_VERSION=1.6.5
- CPU="esp8266" BOARD="esp8266com:esp8266:generic:CpuFrequency=80,FlashSize=1M0,FlashMode=qio,FlashFreq=80" IDE_VERSION=1.8.5
- CPU="esp8266" BOARD="esp8266com:esp8266:generic:CpuFrequency=80,Debug=Serial1" IDE_VERSION=1.6.5
- CPU="esp32" BOARD="espressif:esp32:esp32:FlashFreq=80" IDE_VERSION=1.6.5
- CPU="esp32" BOARD="espressif:esp32:esp32:FlashFreq=80" IDE_VERSION=1.8.5
script:
- /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_1.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :1 -ac -screen 0 1280x1024x16
- sleep 3
- export DISPLAY=:1.0
- wget http://downloads.arduino.cc/arduino-$IDE_VERSION-linux64.tar.xz
- tar xf arduino-$IDE_VERSION-linux64.tar.xz
- mv arduino-$IDE_VERSION $HOME/arduino_ide
- export PATH="$HOME/arduino_ide:$PATH"
- which arduino
- mkdir -p $HOME/Arduino/libraries
- cp -r $TRAVIS_BUILD_DIR $HOME/Arduino/libraries/arduinoWebSockets
- source $TRAVIS_BUILD_DIR/travis/common.sh
- get_core $CPU
- cd $TRAVIS_BUILD_DIR
- arduino --board $BOARD --save-prefs
- arduino --get-pref sketchbook.path
- build_sketches arduino $HOME/Arduino/libraries/arduinoWebSockets/examples/$CPU $CPU
notifications:
email:
on_success: change
on_failure: change
webhooks:
urls:
- https://webhooks.gitter.im/e/1aa78fbe15080b0c2e37
on_success: change # options: [always|never|change] default: always
on_failure: always # options: [always|never|change] default: always
on_start: false # default: false

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Grbl_Esp32-master/libraries/arduinoWebSockets/LICENSE Normal file
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WebSocket Server and Client for Arduino [![Build Status](https://travis-ci.org/Links2004/arduinoWebSockets.svg?branch=master)](https://travis-ci.org/Links2004/arduinoWebSockets)
===========================================
a WebSocket Server and Client for Arduino based on RFC6455.
##### Supported features of RFC6455 #####
- text frame
- binary frame
- connection close
- ping
- pong
- continuation frame
##### Limitations #####
- max input length is limited to the ram size and the ```WEBSOCKETS_MAX_DATA_SIZE``` define
- max output length has no limit (the hardware is the limit)
- Client send big frames with mask 0x00000000 (on AVR all frames)
- continuation frame reassembly need to be handled in the application code
##### Limitations for Async #####
- Functions called from within the context of the websocket event might not honor `yield()` and/or `delay()`. See [this issue](https://github.com/Links2004/arduinoWebSockets/issues/58#issuecomment-192376395) for more info and a potential workaround.
- wss / SSL is not possible.
##### Supported Hardware #####
- ESP8266 [Arduino for ESP8266](https://github.com/esp8266/Arduino/)
- ESP32 [Arduino for ESP32](https://github.com/espressif/arduino-esp32)
- ESP31B
- Particle with STM32 ARM Cortex M3
- ATmega328 with Ethernet Shield (ATmega branch)
- ATmega328 with enc28j60 (ATmega branch)
- ATmega2560 with Ethernet Shield (ATmega branch)
- ATmega2560 with enc28j60 (ATmega branch)
###### Note: ######
version 2.0 and up is not compatible with AVR/ATmega, check ATmega branch.
Arduino for AVR not supports std namespace of c++.
### wss / SSL ###
supported for:
- wss client on the ESP8266
- wss / SSL is not natively supported in WebSocketsServer however it is possible to achieve secure websockets
by running the device behind an SSL proxy. See [Nginx](examples/Nginx/esp8266.ssl.reverse.proxy.conf) for a
sample Nginx server configuration file to enable this.
### ESP Async TCP ###
This libary can run in Async TCP mode on the ESP.
The mode can be activated in the ```WebSockets.h``` (see WEBSOCKETS_NETWORK_TYPE define).
[ESPAsyncTCP](https://github.com/me-no-dev/ESPAsyncTCP) libary is required.
### High Level Client API ###
- `begin` : Initiate connection sequence to the websocket host.
```
void begin(const char *host, uint16_t port, const char * url = "/", const char * protocol = "arduino");
void begin(String host, uint16_t port, String url = "/", String protocol = "arduino");
```
- `onEvent`: Callback to handle for websocket events
```
void onEvent(WebSocketClientEvent cbEvent);
```
- `WebSocketClientEvent`: Handler for websocket events
```
void (*WebSocketClientEvent)(WStype_t type, uint8_t * payload, size_t length)
```
Where `WStype_t type` is defined as:
```
typedef enum {
WStype_ERROR,
WStype_DISCONNECTED,
WStype_CONNECTED,
WStype_TEXT,
WStype_BIN,
WStype_FRAGMENT_TEXT_START,
WStype_FRAGMENT_BIN_START,
WStype_FRAGMENT,
WStype_FRAGMENT_FIN,
} WStype_t;
```
### Issues ###
Submit issues to: https://github.com/Links2004/arduinoWebSockets/issues
[![Join the chat at https://gitter.im/Links2004/arduinoWebSockets](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Links2004/arduinoWebSockets?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
### License and credits ###
The library is licensed under [LGPLv2.1](https://github.com/Links2004/arduinoWebSockets/blob/master/LICENSE)
[libb64](http://libb64.sourceforge.net/) written by Chris Venter. It is distributed under Public Domain see [LICENSE](https://github.com/Links2004/arduinoWebSockets/blob/master/src/libb64/LICENSE).

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# ESP8266 nginx SSL reverse proxy configuration file (tested and working on nginx v1.10.0)
# proxy cache location
proxy_cache_path /opt/etc/nginx/cache levels=1:2 keys_zone=ESP8266_cache:10m max_size=10g inactive=5m use_temp_path=off;
# webserver proxy
server {
# general server parameters
listen 50080;
server_name myDomain.net;
access_log /opt/var/log/nginx/myDomain.net.access.log;
# SSL configuration
ssl on;
ssl_certificate /usr/builtin/etc/certificate/lets-encrypt/myDomain.net/fullchain.pem;
ssl_certificate_key /usr/builtin/etc/certificate/lets-encrypt/myDomain.net/privkey.pem;
ssl_session_cache builtin:1000 shared:SSL:10m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
ssl_prefer_server_ciphers on;
location / {
# proxy caching configuration
proxy_cache ESP8266_cache;
proxy_cache_revalidate on;
proxy_cache_min_uses 1;
proxy_cache_use_stale off;
proxy_cache_lock on;
# proxy_cache_bypass $http_cache_control;
# include the sessionId cookie value as part of the cache key - keeps the cache per user
# proxy_cache_key $proxy_host$request_uri$cookie_sessionId;
# header pass through configuration
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
# ESP8266 custom headers which identify to the device that it's running through an SSL proxy
proxy_set_header X-SSL On;
proxy_set_header X-SSL-WebserverPort 50080;
proxy_set_header X-SSL-WebsocketPort 50081;
# extra debug headers
add_header X-Proxy-Cache $upstream_cache_status;
add_header X-Forwarded-For $proxy_add_x_forwarded_for;
# actual proxying configuration
proxy_ssl_session_reuse on;
# target the IP address of the device with proxy_pass
proxy_pass http://192.168.0.20;
proxy_read_timeout 90;
}
}
# websocket proxy
server {
# general server parameters
listen 50081;
server_name myDomain.net;
access_log /opt/var/log/nginx/myDomain.net.wss.access.log;
# SSL configuration
ssl on;
ssl_certificate /usr/builtin/etc/certificate/lets-encrypt/myDomain.net/fullchain.pem;
ssl_certificate_key /usr/builtin/etc/certificate/lets-encrypt/myDomain.net/privkey.pem;
ssl_session_cache builtin:1000 shared:SSL:10m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
ssl_prefer_server_ciphers on;
location / {
# websocket upgrade tunnel configuration
proxy_pass http://192.168.0.20:81;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_read_timeout 86400;
}
}

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/*
* WebSocketClientAVR.ino
*
* Created on: 10.12.2015
*
*/
#include <Arduino.h>
#include <SPI.h>
#include <Ethernet.h>
#include <WebSocketsClient.h>
// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 0, 177);
WebSocketsClient webSocket;
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
Serial.println("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
{
Serial.print("[WSc] Connected to url: ");
Serial.println((char *)payload);
// send message to server when Connected
webSocket.sendTXT("Connected");
}
break;
case WStype_TEXT:
Serial.print("[WSc] get text: ");
Serial.println((char *)payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
Serial.print("[WSc] get binary length: ");
Serial.println(length);
// hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
}
}
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(115200);
while (!Serial) {}
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip);
}
webSocket.begin("192.168.0.123", 8011);
webSocket.onEvent(webSocketEvent);
}
void loop()
{
webSocket.loop();
}

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/*
* WebSocketClient.ino
*
* Created on: 24.05.2015
*
*/
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <WiFiClientSecure.h>
#include <WebSocketsClient.h>
WiFiMulti WiFiMulti;
WebSocketsClient webSocket;
#define USE_SERIAL Serial1
void hexdump(const void *mem, uint32_t len, uint8_t cols = 16) {
const uint8_t* src = (const uint8_t*) mem;
USE_SERIAL.printf("\n[HEXDUMP] Address: 0x%08X len: 0x%X (%d)", (ptrdiff_t)src, len, len);
for(uint32_t i = 0; i < len; i++) {
if(i % cols == 0) {
USE_SERIAL.printf("\n[0x%08X] 0x%08X: ", (ptrdiff_t)src, i);
}
USE_SERIAL.printf("%02X ", *src);
src++;
}
USE_SERIAL.printf("\n");
}
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
// send message to server when Connected
webSocket.sendTXT("Connected");
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
case WStype_ERROR:
case WStype_FRAGMENT_TEXT_START:
case WStype_FRAGMENT_BIN_START:
case WStype_FRAGMENT:
case WStype_FRAGMENT_FIN:
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
// server address, port and URL
webSocket.begin("192.168.0.123", 81, "/");
// event handler
webSocket.onEvent(webSocketEvent);
// use HTTP Basic Authorization this is optional remove if not needed
webSocket.setAuthorization("user", "Password");
// try ever 5000 again if connection has failed
webSocket.setReconnectInterval(5000);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketClientSSL.ino
*
* Created on: 10.12.2015
*
* note SSL is only possible with the ESP8266
*
*/
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <WiFiClientSecure.h>
#include <WebSocketsClient.h>
WiFiMulti WiFiMulti;
WebSocketsClient webSocket;
#define USE_SERIAL Serial1
void hexdump(const void *mem, uint32_t len, uint8_t cols = 16) {
const uint8_t* src = (const uint8_t*) mem;
USE_SERIAL.printf("\n[HEXDUMP] Address: 0x%08X len: 0x%X (%d)", (ptrdiff_t)src, len, len);
for(uint32_t i = 0; i < len; i++) {
if(i % cols == 0) {
USE_SERIAL.printf("\n[0x%08X] 0x%08X: ", (ptrdiff_t)src, i);
}
USE_SERIAL.printf("%02X ", *src);
src++;
}
USE_SERIAL.printf("\n");
}
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
{
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
// send message to server when Connected
webSocket.sendTXT("Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
case WStype_ERROR:
case WStype_FRAGMENT_TEXT_START:
case WStype_FRAGMENT_BIN_START:
case WStype_FRAGMENT:
case WStype_FRAGMENT_FIN:
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
webSocket.beginSSL("192.168.0.123", 81);
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketServer.ino
*
* Created on: 22.05.2015
*
*/
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <WiFiClientSecure.h>
#include <WebSocketsServer.h>
WiFiMulti WiFiMulti;
WebSocketsServer webSocket = WebSocketsServer(81);
#define USE_SERIAL Serial1
void hexdump(const void *mem, uint32_t len, uint8_t cols = 16) {
const uint8_t* src = (const uint8_t*) mem;
USE_SERIAL.printf("\n[HEXDUMP] Address: 0x%08X len: 0x%X (%d)", (ptrdiff_t)src, len, len);
for(uint32_t i = 0; i < len; i++) {
if(i % cols == 0) {
USE_SERIAL.printf("\n[0x%08X] 0x%08X: ", (ptrdiff_t)src, i);
}
USE_SERIAL.printf("%02X ", *src);
src++;
}
USE_SERIAL.printf("\n");
}
void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[%u] Disconnected!\n", num);
break;
case WStype_CONNECTED:
{
IPAddress ip = webSocket.remoteIP(num);
USE_SERIAL.printf("[%u] Connected from %d.%d.%d.%d url: %s\n", num, ip[0], ip[1], ip[2], ip[3], payload);
// send message to client
webSocket.sendTXT(num, "Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[%u] get Text: %s\n", num, payload);
// send message to client
// webSocket.sendTXT(num, "message here");
// send data to all connected clients
// webSocket.broadcastTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[%u] get binary length: %u\n", num, length);
hexdump(payload, length);
// send message to client
// webSocket.sendBIN(num, payload, length);
break;
case WStype_ERROR:
case WStype_FRAGMENT_TEXT_START:
case WStype_FRAGMENT_BIN_START:
case WStype_FRAGMENT:
case WStype_FRAGMENT_FIN:
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
webSocket.begin();
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketClient.ino
*
* Created on: 24.05.2015
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsClient.h>
#include <Hash.h>
ESP8266WiFiMulti WiFiMulti;
WebSocketsClient webSocket;
#define USE_SERIAL Serial1
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED: {
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
// send message to server when Connected
webSocket.sendTXT("Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
// server address, port and URL
webSocket.begin("192.168.0.123", 81, "/");
// event handler
webSocket.onEvent(webSocketEvent);
// use HTTP Basic Authorization this is optional remove if not needed
webSocket.setAuthorization("user", "Password");
// try ever 5000 again if connection has failed
webSocket.setReconnectInterval(5000);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketClientSSL.ino
*
* Created on: 10.12.2015
*
* note SSL is only possible with the ESP8266
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsClient.h>
#include <Hash.h>
ESP8266WiFiMulti WiFiMulti;
WebSocketsClient webSocket;
#define USE_SERIAL Serial1
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
{
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
// send message to server when Connected
webSocket.sendTXT("Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
webSocket.beginSSL("192.168.0.123", 81);
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketClientSocketIO.ino
*
* Created on: 06.06.2016
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsClient.h>
#include <Hash.h>
ESP8266WiFiMulti WiFiMulti;
WebSocketsClient webSocket;
#define USE_SERIAL Serial1
#define MESSAGE_INTERVAL 30000
#define HEARTBEAT_INTERVAL 25000
uint64_t messageTimestamp = 0;
uint64_t heartbeatTimestamp = 0;
bool isConnected = false;
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
isConnected = false;
break;
case WStype_CONNECTED:
{
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
isConnected = true;
// send message to server when Connected
// socket.io upgrade confirmation message (required)
webSocket.sendTXT("5");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
webSocket.beginSocketIO("192.168.0.123", 81);
//webSocket.setAuthorization("user", "Password"); // HTTP Basic Authorization
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
if(isConnected) {
uint64_t now = millis();
if(now - messageTimestamp > MESSAGE_INTERVAL) {
messageTimestamp = now;
// example socket.io message with type "messageType" and JSON payload
webSocket.sendTXT("42[\"messageType\",{\"greeting\":\"hello\"}]");
}
if((now - heartbeatTimestamp) > HEARTBEAT_INTERVAL) {
heartbeatTimestamp = now;
// socket.io heartbeat message
webSocket.sendTXT("2");
}
}
}

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/*
WebSocketClientStomp.ino
Example for connecting and maintining a connection with a STOMP websocket connection.
In this example, we connect to a Spring application (see https://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html).
Created on: 25.09.2017
Author: Martin Becker <mgbckr>, Contact: becker@informatik.uni-wuerzburg.de
*/
// PRE
#define USE_SERIAL Serial
// LIBRARIES
#include <Arduino.h>
#include <Hash.h>
#include <ESP8266WiFi.h>
#include <WebSocketsClient.h>
// SETTINGS
const char* wlan_ssid = "yourssid";
const char* wlan_password = "somepassword";
const char* ws_host = "the.host.net";
const int ws_port = 80;
// URL for STOMP endpoint.
// For the default config of Spring's STOMP support, the default URL is "/socketentry/websocket".
const char* stompUrl = "/socketentry/websocket"; // don't forget the leading "/" !!!
// VARIABLES
WebSocketsClient webSocket;
// FUNCTIONS
/**
* STOMP messages need to be NULL-terminated (i.e., \0 or \u0000).
* However, when we send a String or a char[] array without specifying
* a length, the size of the message payload is derived by strlen() internally,
* thus dropping any NULL values appended to the "msg"-String.
*
* To solve this, we first convert the String to a NULL terminated char[] array
* via "c_str" and set the length of the payload to include the NULL value.
*/
void sendMessage(String & msg) {
webSocket.sendTXT(msg.c_str(), msg.length() + 1);
}
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch (type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
{
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
String msg = "CONNECT\r\naccept-version:1.1,1.0\r\nheart-beat:10000,10000\r\n\r\n";
sendMessage(msg);
}
break;
case WStype_TEXT:
{
// #####################
// handle STOMP protocol
// #####################
String text = (char*) payload;
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
if (text.startsWith("CONNECTED")) {
// subscribe to some channels
String msg = "SUBSCRIBE\nid:sub-0\ndestination:/user/queue/messages\n\n";
sendMessage(msg);
delay(1000);
// and send a message
msg = "SEND\ndestination:/app/message\n\n{\"user\":\"esp\",\"message\":\"Hello!\"}";
sendMessage(msg);
delay(1000);
} else {
// do something with messages
}
break;
}
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
}
}
void setup() {
// setup serial
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
// USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
// connect to WiFi
USE_SERIAL.print("Logging into WLAN: "); Serial.print(wlan_ssid); Serial.print(" ...");
WiFi.mode(WIFI_STA);
WiFi.begin(wlan_ssid, wlan_password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
USE_SERIAL.print(".");
}
USE_SERIAL.println(" success.");
USE_SERIAL.print("IP: "); USE_SERIAL.println(WiFi.localIP());
// connect to websocket
webSocket.begin(ws_host, ws_port, stompUrl);
webSocket.setExtraHeaders(); // remove "Origin: file://" header because it breaks the connection with Spring's default websocket config
// webSocket.setExtraHeaders("foo: I am so funny\r\nbar: not"); // some headers, in case you feel funny
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
WebSocketClientStompOverSockJs.ino
Example for connecting and maintining a connection with a SockJS+STOMP websocket connection.
In this example, we connect to a Spring application (see https://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html).
Created on: 18.07.2017
Author: Martin Becker <mgbckr>, Contact: becker@informatik.uni-wuerzburg.de
*/
// PRE
#define USE_SERIAL Serial
// LIBRARIES
#include <Arduino.h>
#include <Hash.h>
#include <ESP8266WiFi.h>
#include <WebSocketsClient.h>
// SETTINGS
const char* wlan_ssid = "yourssid";
const char* wlan_password = "somepassword";
const char* ws_host = "the.host.net";
const int ws_port = 80;
// base URL for SockJS (websocket) connection
// The complete URL will look something like this(cf. http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-36):
// ws://<ws_host>:<ws_port>/<ws_baseurl>/<3digits>/<randomstring>/websocket
// For the default config of Spring's SockJS/STOMP support, the default base URL is "/socketentry/".
const char* ws_baseurl = "/socketentry/"; // don't forget leading and trailing "/" !!!
// VARIABLES
WebSocketsClient webSocket;
// FUNCTIONS
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch (type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
{
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
}
break;
case WStype_TEXT:
{
// #####################
// handle SockJs+STOMP protocol
// #####################
String text = (char*) payload;
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
if (payload[0] == 'h') {
USE_SERIAL.println("Heartbeat!");
} else if (payload[0] == 'o') {
// on open connection
char *msg = "[\"CONNECT\\naccept-version:1.1,1.0\\nheart-beat:10000,10000\\n\\n\\u0000\"]";
webSocket.sendTXT(msg);
} else if (text.startsWith("a[\"CONNECTED")) {
// subscribe to some channels
char *msg = "[\"SUBSCRIBE\\nid:sub-0\\ndestination:/user/queue/messages\\n\\n\\u0000\"]";
webSocket.sendTXT(msg);
delay(1000);
// and send a message
msg = "[\"SEND\\ndestination:/app/message\\n\\n{\\\"user\\\":\\\"esp\\\",\\\"message\\\":\\\"Hello!\\\"}\\u0000\"]";
webSocket.sendTXT(msg);
delay(1000);
}
break;
}
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
}
}
void setup() {
// setup serial
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
// USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
// connect to WiFi
USE_SERIAL.print("Logging into WLAN: "); Serial.print(wlan_ssid); Serial.print(" ...");
WiFi.mode(WIFI_STA);
WiFi.begin(wlan_ssid, wlan_password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
USE_SERIAL.print(".");
}
USE_SERIAL.println(" success.");
USE_SERIAL.print("IP: "); USE_SERIAL.println(WiFi.localIP());
// #####################
// create socket url according to SockJS protocol (cf. http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-36)
// #####################
String socketUrl = ws_baseurl;
socketUrl += random(0, 999);
socketUrl += "/";
socketUrl += random(0, 999999); // should be a random string, but this works (see )
socketUrl += "/websocket";
// connect to websocket
webSocket.begin(ws_host, ws_port, socketUrl);
webSocket.setExtraHeaders(); // remove "Origin: file://" header because it breaks the connection with Spring's default websocket config
// webSocket.setExtraHeaders("foo: I am so funny\r\nbar: not"); // some headers, in case you feel funny
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketServer.ino
*
* Created on: 22.05.2015
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsServer.h>
#include <Hash.h>
ESP8266WiFiMulti WiFiMulti;
WebSocketsServer webSocket = WebSocketsServer(81);
#define USE_SERIAL Serial1
void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[%u] Disconnected!\n", num);
break;
case WStype_CONNECTED:
{
IPAddress ip = webSocket.remoteIP(num);
USE_SERIAL.printf("[%u] Connected from %d.%d.%d.%d url: %s\n", num, ip[0], ip[1], ip[2], ip[3], payload);
// send message to client
webSocket.sendTXT(num, "Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[%u] get Text: %s\n", num, payload);
// send message to client
// webSocket.sendTXT(num, "message here");
// send data to all connected clients
// webSocket.broadcastTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[%u] get binary length: %u\n", num, length);
hexdump(payload, length);
// send message to client
// webSocket.sendBIN(num, payload, length);
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
webSocket.begin();
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketServerAllFunctionsDemo.ino
*
* Created on: 10.05.2018
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsServer.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <Hash.h>
#define LED_RED 15
#define LED_GREEN 12
#define LED_BLUE 13
#define USE_SERIAL Serial
ESP8266WiFiMulti WiFiMulti;
ESP8266WebServer server(80);
WebSocketsServer webSocket = WebSocketsServer(81);
void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[%u] Disconnected!\n", num);
break;
case WStype_CONNECTED: {
IPAddress ip = webSocket.remoteIP(num);
USE_SERIAL.printf("[%u] Connected from %d.%d.%d.%d url: %s\n", num, ip[0], ip[1], ip[2], ip[3], payload);
// send message to client
webSocket.sendTXT(num, "Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[%u] get Text: %s\n", num, payload);
if(payload[0] == '#') {
// we get RGB data
// decode rgb data
uint32_t rgb = (uint32_t) strtol((const char *) &payload[1], NULL, 16);
analogWrite(LED_RED, ((rgb >> 16) & 0xFF));
analogWrite(LED_GREEN, ((rgb >> 8) & 0xFF));
analogWrite(LED_BLUE, ((rgb >> 0) & 0xFF));
}
break;
}
}
void setup() {
//USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
pinMode(LED_RED, OUTPUT);
pinMode(LED_GREEN, OUTPUT);
pinMode(LED_BLUE, OUTPUT);
digitalWrite(LED_RED, 1);
digitalWrite(LED_GREEN, 1);
digitalWrite(LED_BLUE, 1);
WiFiMulti.addAP("SSID", "passpasspass");
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
// start webSocket server
webSocket.begin();
webSocket.onEvent(webSocketEvent);
if(MDNS.begin("esp8266")) {
USE_SERIAL.println("MDNS responder started");
}
// handle index
server.on("/", []() {
// send index.html
server.send(200, "text/html", "<html><head><script>var connection = new WebSocket('ws://'+location.hostname+':81/', ['arduino']);connection.onopen = function () { connection.send('Connect ' + new Date()); }; connection.onerror = function (error) { console.log('WebSocket Error ', error);};connection.onmessage = function (e) { console.log('Server: ', e.data);};function sendRGB() { var r = parseInt(document.getElementById('r').value).toString(16); var g = parseInt(document.getElementById('g').value).toString(16); var b = parseInt(document.getElementById('b').value).toString(16); if(r.length < 2) { r = '0' + r; } if(g.length < 2) { g = '0' + g; } if(b.length < 2) { b = '0' + b; } var rgb = '#'+r+g+b; console.log('RGB: ' + rgb); connection.send(rgb); }</script></head><body>LED Control:<br/><br/>R: <input id=\"r\" type=\"range\" min=\"0\" max=\"255\" step=\"1\" oninput=\"sendRGB();\" /><br/>G: <input id=\"g\" type=\"range\" min=\"0\" max=\"255\" step=\"1\" oninput=\"sendRGB();\" /><br/>B: <input id=\"b\" type=\"range\" min=\"0\" max=\"255\" step=\"1\" oninput=\"sendRGB();\" /><br/></body></html>");
});
server.begin();
// Add service to MDNS
MDNS.addService("http", "tcp", 80);
MDNS.addService("ws", "tcp", 81);
digitalWrite(LED_RED, 0);
digitalWrite(LED_GREEN, 0);
digitalWrite(LED_BLUE, 0);
}
unsigned long last_10sec = 0;
unsigned int counter = 0;
void loop() {
unsigned long t = millis();
webSocket.loop();
server.handleClient();
if((t - last_10sec) > 10 * 1000) {
counter++;
bool ping = (counter % 2);
int i = webSocket.connectedClients(ping);
USE_SERIAL.printf("%d Connected websocket clients ping: %d\n", i, ping);
last_10sec = millis();
}
}

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/*
* WebSocketServer.ino
*
* Created on: 22.05.2015
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsServer.h>
#include <Hash.h>
ESP8266WiFiMulti WiFiMulti;
WebSocketsServer webSocket = WebSocketsServer(81);
#define USE_SERIAL Serial
String fragmentBuffer = "";
void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[%u] Disconnected!\n", num);
break;
case WStype_CONNECTED: {
IPAddress ip = webSocket.remoteIP(num);
USE_SERIAL.printf("[%u] Connected from %d.%d.%d.%d url: %s\n", num, ip[0], ip[1], ip[2], ip[3], payload);
// send message to client
webSocket.sendTXT(num, "Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[%u] get Text: %s\n", num, payload);
break;
case WStype_BIN:
USE_SERIAL.printf("[%u] get binary length: %u\n", num, length);
hexdump(payload, length);
break;
// Fragmentation / continuation opcode handling
// case WStype_FRAGMENT_BIN_START:
case WStype_FRAGMENT_TEXT_START:
fragmentBuffer = (char*)payload;
USE_SERIAL.printf("[%u] get start start of Textfragment: %s\n", num, payload);
break;
case WStype_FRAGMENT:
fragmentBuffer += (char*)payload;
USE_SERIAL.printf("[%u] get Textfragment : %s\n", num, payload);
break;
case WStype_FRAGMENT_FIN:
fragmentBuffer += (char*)payload;
USE_SERIAL.printf("[%u] get end of Textfragment: %s\n", num, payload);
USE_SERIAL.printf("[%u] full frame: %s\n", num, fragmentBuffer.c_str());
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
webSocket.begin();
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketServerHttpHeaderValidation.ino
*
* Created on: 08.06.2016
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsServer.h>
#include <Hash.h>
ESP8266WiFiMulti WiFiMulti;
WebSocketsServer webSocket = WebSocketsServer(81);
#define USE_SERIAL Serial1
const unsigned long int validSessionId = 12345; //some arbitrary value to act as a valid sessionId
/*
* Returns a bool value as an indicator to describe whether a user is allowed to initiate a websocket upgrade
* based on the value of a cookie. This function expects the rawCookieHeaderValue to look like this "sessionId=<someSessionIdNumberValue>|"
*/
bool isCookieValid(String rawCookieHeaderValue) {
if (rawCookieHeaderValue.indexOf("sessionId") != -1) {
String sessionIdStr = rawCookieHeaderValue.substring(rawCookieHeaderValue.indexOf("sessionId=") + 10, rawCookieHeaderValue.indexOf("|"));
unsigned long int sessionId = strtoul(sessionIdStr.c_str(), NULL, 10);
return sessionId == validSessionId;
}
return false;
}
/*
* The WebSocketServerHttpHeaderValFunc delegate passed to webSocket.onValidateHttpHeader
*/
bool validateHttpHeader(String headerName, String headerValue) {
//assume a true response for any headers not handled by this validator
bool valid = true;
if(headerName.equalsIgnoreCase("Cookie")) {
//if the header passed is the Cookie header, validate it according to the rules in 'isCookieValid' function
valid = isCookieValid(headerValue);
}
return valid;
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
//connecting clients must supply a valid session cookie at websocket upgrade handshake negotiation time
const char * headerkeys[] = { "Cookie" };
size_t headerKeyCount = sizeof(headerkeys) / sizeof(char*);
webSocket.onValidateHttpHeader(validateHttpHeader, headerkeys, headerKeyCount);
webSocket.begin();
}
void loop() {
webSocket.loop();
}

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/*
* WebSocketServer_LEDcontrol.ino
*
* Created on: 26.11.2015
*
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WebSocketsServer.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <Hash.h>
#define LED_RED 15
#define LED_GREEN 12
#define LED_BLUE 13
#define USE_SERIAL Serial
ESP8266WiFiMulti WiFiMulti;
ESP8266WebServer server(80);
WebSocketsServer webSocket = WebSocketsServer(81);
void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[%u] Disconnected!\n", num);
break;
case WStype_CONNECTED: {
IPAddress ip = webSocket.remoteIP(num);
USE_SERIAL.printf("[%u] Connected from %d.%d.%d.%d url: %s\n", num, ip[0], ip[1], ip[2], ip[3], payload);
// send message to client
webSocket.sendTXT(num, "Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[%u] get Text: %s\n", num, payload);
if(payload[0] == '#') {
// we get RGB data
// decode rgb data
uint32_t rgb = (uint32_t) strtol((const char *) &payload[1], NULL, 16);
analogWrite(LED_RED, ((rgb >> 16) & 0xFF));
analogWrite(LED_GREEN, ((rgb >> 8) & 0xFF));
analogWrite(LED_BLUE, ((rgb >> 0) & 0xFF));
}
break;
}
}
void setup() {
//USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
pinMode(LED_RED, OUTPUT);
pinMode(LED_GREEN, OUTPUT);
pinMode(LED_BLUE, OUTPUT);
digitalWrite(LED_RED, 1);
digitalWrite(LED_GREEN, 1);
digitalWrite(LED_BLUE, 1);
WiFiMulti.addAP("SSID", "passpasspass");
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
// start webSocket server
webSocket.begin();
webSocket.onEvent(webSocketEvent);
if(MDNS.begin("esp8266")) {
USE_SERIAL.println("MDNS responder started");
}
// handle index
server.on("/", []() {
// send index.html
server.send(200, "text/html", "<html><head><script>var connection = new WebSocket('ws://'+location.hostname+':81/', ['arduino']);connection.onopen = function () { connection.send('Connect ' + new Date()); }; connection.onerror = function (error) { console.log('WebSocket Error ', error);};connection.onmessage = function (e) { console.log('Server: ', e.data);};function sendRGB() { var r = parseInt(document.getElementById('r').value).toString(16); var g = parseInt(document.getElementById('g').value).toString(16); var b = parseInt(document.getElementById('b').value).toString(16); if(r.length < 2) { r = '0' + r; } if(g.length < 2) { g = '0' + g; } if(b.length < 2) { b = '0' + b; } var rgb = '#'+r+g+b; console.log('RGB: ' + rgb); connection.send(rgb); }</script></head><body>LED Control:<br/><br/>R: <input id=\"r\" type=\"range\" min=\"0\" max=\"255\" step=\"1\" oninput=\"sendRGB();\" /><br/>G: <input id=\"g\" type=\"range\" min=\"0\" max=\"255\" step=\"1\" oninput=\"sendRGB();\" /><br/>B: <input id=\"b\" type=\"range\" min=\"0\" max=\"255\" step=\"1\" oninput=\"sendRGB();\" /><br/></body></html>");
});
server.begin();
// Add service to MDNS
MDNS.addService("http", "tcp", 80);
MDNS.addService("ws", "tcp", 81);
digitalWrite(LED_RED, 0);
digitalWrite(LED_GREEN, 0);
digitalWrite(LED_BLUE, 0);
}
void loop() {
webSocket.loop();
server.handleClient();
}

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/* To compile using make CLI, create a folder under \firmware\user\applications and copy application.cpp there.
* Then, copy src files under particleWebSocket folder.
*/
#include "application.h"
#include "particleWebSocket/WebSocketsClient.h"
WebSocketsClient webSocket;
void webSocketEvent(WStype_t type, uint8_t* payload, size_t length)
{
switch (type)
{
case WStype_DISCONNECTED:
Serial.printlnf("[WSc] Disconnected!");
break;
case WStype_CONNECTED:
Serial.printlnf("[WSc] Connected to URL: %s", payload);
webSocket.sendTXT("Connected\r\n");
break;
case WStype_TEXT:
Serial.printlnf("[WSc] get text: %s", payload);
break;
case WStype_BIN:
Serial.printlnf("[WSc] get binary length: %u", length);
break;
}
}
void setup()
{
Serial.begin(9600);
WiFi.setCredentials("[SSID]", "[PASSWORD]", WPA2, WLAN_CIPHER_AES_TKIP);
WiFi.connect();
webSocket.begin("192.168.1.153", 85, "/ClientService/?variable=Test1212");
webSocket.onEvent(webSocketEvent);
}
void loop()
{
webSocket.sendTXT("Hello world!");
delay(500);
webSocket.loop();
}

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{
"name": "WebSockets",
"description": "WebSocket Server and Client for Arduino based on RFC6455",
"keywords": "wifi, http, web, server, client, websocket",
"authors": [
{
"name": "Markus Sattler",
"url": "https://github.com/Links2004",
"maintainer": true
}
],
"repository": {
"type": "git",
"url": "https://github.com/Links2004/arduinoWebSockets.git"
},
"version": "2.1.2",
"license": "LGPL-2.1",
"export": {
"exclude": [
"tests"
]
},
"frameworks": "arduino",
"platforms": "atmelavr, espressif8266, espressif32"
}

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name=WebSockets
version=2.1.2
author=Markus Sattler
maintainer=Markus Sattler
sentence=WebSockets for Arduino (Server + Client)
paragraph=use 2.x.x for ESP and 1.3 for AVR
category=Communication
url=https://github.com/Links2004/arduinoWebSockets
architectures=*

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/**
* @file WebSockets.cpp
* @date 20.05.2015
* @author Markus Sattler
*
* Copyright (c) 2015 Markus Sattler. All rights reserved.
* This file is part of the WebSockets for Arduino.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "WebSockets.h"
#ifdef ESP8266
#include <core_esp8266_features.h>
#endif
extern "C" {
#ifdef CORE_HAS_LIBB64
#include <libb64/cencode.h>
#else
#include "libb64/cencode_inc.h"
#endif
}
#ifdef ESP8266
#include <Hash.h>
#elif defined(ESP32)
#include <hwcrypto/sha.h>
#else
extern "C" {
#include "libsha1/libsha1.h"
}
#endif
/**
*
* @param client WSclient_t * ptr to the client struct
* @param code uint16_t see RFC
* @param reason ptr to the disconnect reason message
* @param reasonLen length of the disconnect reason message
*/
void WebSockets::clientDisconnect(WSclient_t * client, uint16_t code, char * reason, size_t reasonLen) {
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] clientDisconnect code: %u\n", client->num, code);
if(client->status == WSC_CONNECTED && code) {
if(reason) {
sendFrame(client, WSop_close, (uint8_t *) reason, reasonLen);
} else {
uint8_t buffer[2];
buffer[0] = ((code >> 8) & 0xFF);
buffer[1] = (code & 0xFF);
sendFrame(client, WSop_close, &buffer[0], 2);
}
}
clientDisconnect(client);
}
/**
*
* @param client WSclient_t * ptr to the client struct
* @param opcode WSopcode_t
* @param payload uint8_t * ptr to the payload
* @param length size_t length of the payload
* @param mask bool add dummy mask to the frame (needed for web browser)
* @param fin bool can be used to send data in more then one frame (set fin on the last frame)
* @param headerToPayload bool set true if the payload has reserved 14 Byte at the beginning to dynamically add the Header (payload neet to be in RAM!)
* @return true if ok
*/
bool WebSockets::sendFrame(WSclient_t * client, WSopcode_t opcode, uint8_t * payload, size_t length, bool mask, bool fin, bool headerToPayload) {
if(client->tcp && !client->tcp->connected()) {
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] not Connected!?\n", client->num);
return false;
}
if(client->status != WSC_CONNECTED) {
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] not in WSC_CONNECTED state!?\n", client->num);
return false;
}
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] ------- send message frame -------\n", client->num);
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] fin: %u opCode: %u mask: %u length: %u headerToPayload: %u\n", client->num, fin, opcode, mask, length, headerToPayload);
if(opcode == WSop_text) {
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] text: %s\n", client->num, (payload + (headerToPayload ? 14 : 0)));
}
uint8_t maskKey[4] = { 0x00, 0x00, 0x00, 0x00 };
uint8_t buffer[WEBSOCKETS_MAX_HEADER_SIZE] = { 0 };
uint8_t headerSize;
uint8_t * headerPtr;
uint8_t * payloadPtr = payload;
bool useInternBuffer = false;
bool ret = true;
// calculate header Size
if(length < 126) {
headerSize = 2;
} else if(length < 0xFFFF) {
headerSize = 4;
} else {
headerSize = 10;
}
if(mask) {
headerSize += 4;
}
#ifdef WEBSOCKETS_USE_BIG_MEM
// only for ESP since AVR has less HEAP
// try to send data in one TCP package (only if some free Heap is there)
if(!headerToPayload && ((length > 0) && (length < 1400)) && (GET_FREE_HEAP > 6000)) {
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] pack to one TCP package...\n", client->num);
uint8_t * dataPtr = (uint8_t *) malloc(length + WEBSOCKETS_MAX_HEADER_SIZE);
if(dataPtr) {
memcpy((dataPtr + WEBSOCKETS_MAX_HEADER_SIZE), payload, length);
headerToPayload = true;
useInternBuffer = true;
payloadPtr = dataPtr;
}
}
#endif
// set Header Pointer
if(headerToPayload) {
// calculate offset in payload
headerPtr = (payloadPtr + (WEBSOCKETS_MAX_HEADER_SIZE - headerSize));
} else {
headerPtr = &buffer[0];
}
// create header
// byte 0
*headerPtr = 0x00;
if(fin) {
*headerPtr |= bit(7); ///< set Fin
}
*headerPtr |= opcode; ///< set opcode
headerPtr++;
// byte 1
*headerPtr = 0x00;
if(mask) {
*headerPtr |= bit(7); ///< set mask
}
if(length < 126) {
*headerPtr |= length;
headerPtr++;
} else if(length < 0xFFFF) {
*headerPtr |= 126;
headerPtr++;
*headerPtr = ((length >> 8) & 0xFF);
headerPtr++;
*headerPtr = (length & 0xFF);
headerPtr++;
} else {
// Normally we never get here (to less memory)
*headerPtr |= 127;
headerPtr++;
*headerPtr = 0x00;
headerPtr++;
*headerPtr = 0x00;
headerPtr++;
*headerPtr = 0x00;
headerPtr++;
*headerPtr = 0x00;
headerPtr++;
*headerPtr = ((length >> 24) & 0xFF);
headerPtr++;
*headerPtr = ((length >> 16) & 0xFF);
headerPtr++;
*headerPtr = ((length >> 8) & 0xFF);
headerPtr++;
*headerPtr = (length & 0xFF);
headerPtr++;
}
if(mask) {
if(useInternBuffer) {
// if we use a Intern Buffer we can modify the data
// by this fact its possible the do the masking
for(uint8_t x = 0; x < sizeof(maskKey); x++) {
maskKey[x] = random(0xFF);
*headerPtr = maskKey[x];
headerPtr++;
}
uint8_t * dataMaskPtr;
if(headerToPayload) {
dataMaskPtr = (payloadPtr + WEBSOCKETS_MAX_HEADER_SIZE);
} else {
dataMaskPtr = payloadPtr;
}
for(size_t x = 0; x < length; x++) {
dataMaskPtr[x] = (dataMaskPtr[x] ^ maskKey[x % 4]);
}
} else {
*headerPtr = maskKey[0];
headerPtr++;
*headerPtr = maskKey[1];
headerPtr++;
*headerPtr = maskKey[2];
headerPtr++;
*headerPtr = maskKey[3];
headerPtr++;
}
}
#ifndef NODEBUG_WEBSOCKETS
unsigned long start = micros();
#endif
if(headerToPayload) {
// header has be added to payload
// payload is forced to reserved 14 Byte but we may not need all based on the length and mask settings
// offset in payload is calculatetd 14 - headerSize
if(write(client, &payloadPtr[(WEBSOCKETS_MAX_HEADER_SIZE - headerSize)], (length + headerSize)) != (length + headerSize)) {
ret = false;
}
} else {
// send header
if(write(client, &buffer[0], headerSize) != headerSize) {
ret = false;
}
if(payloadPtr && length > 0) {
// send payload
if(write(client, &payloadPtr[0], length) != length) {
ret = false;
}
}
}
DEBUG_WEBSOCKETS("[WS][%d][sendFrame] sending Frame Done (%luus).\n", client->num, (micros() - start));
#ifdef WEBSOCKETS_USE_BIG_MEM
if(useInternBuffer && payloadPtr) {
free(payloadPtr);
}
#endif
return ret;
}
/**
* callen when HTTP header is done
* @param client WSclient_t * ptr to the client struct
*/
void WebSockets::headerDone(WSclient_t * client) {
client->status = WSC_CONNECTED;
client->cWsRXsize = 0;
DEBUG_WEBSOCKETS("[WS][%d][headerDone] Header Handling Done.\n", client->num);
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->cHttpLine = "";
handleWebsocket(client);
#endif
}
/**
* handle the WebSocket stream
* @param client WSclient_t * ptr to the client struct
*/
void WebSockets::handleWebsocket(WSclient_t * client) {
if(client->cWsRXsize == 0) {
handleWebsocketCb(client);
}
}
/**
* wait for
* @param client
* @param size
*/
bool WebSockets::handleWebsocketWaitFor(WSclient_t * client, size_t size) {
if(!client->tcp || !client->tcp->connected()) {
return false;
}
if(size > WEBSOCKETS_MAX_HEADER_SIZE) {
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocketWaitFor] size: %d too big!\n", client->num, size);
return false;
}
if(client->cWsRXsize >= size) {
return true;
}
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocketWaitFor] size: %d cWsRXsize: %d\n", client->num, size, client->cWsRXsize);
readCb(client, &client->cWsHeader[client->cWsRXsize], (size - client->cWsRXsize), std::bind([](WebSockets * server, size_t size, WSclient_t * client, bool ok) {
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocketWaitFor][readCb] size: %d ok: %d\n", client->num, size, ok);
if(ok) {
client->cWsRXsize = size;
server->handleWebsocketCb(client);
} else {
DEBUG_WEBSOCKETS("[WS][%d][readCb] failed.\n", client->num);
client->cWsRXsize = 0;
// timeout or error
server->clientDisconnect(client, 1002);
}
}, this, size, std::placeholders::_1, std::placeholders::_2));
return false;
}
void WebSockets::handleWebsocketCb(WSclient_t * client) {
if(!client->tcp || !client->tcp->connected()) {
return;
}
uint8_t * buffer = client->cWsHeader;
WSMessageHeader_t * header = &client->cWsHeaderDecode;
uint8_t * payload = NULL;
uint8_t headerLen = 2;
if(!handleWebsocketWaitFor(client, headerLen)) {
return;
}
// split first 2 bytes in the data
header->fin = ((*buffer >> 7) & 0x01);
header->rsv1 = ((*buffer >> 6) & 0x01);
header->rsv2 = ((*buffer >> 5) & 0x01);
header->rsv3 = ((*buffer >> 4) & 0x01);
header->opCode = (WSopcode_t) (*buffer & 0x0F);
buffer++;
header->mask = ((*buffer >> 7) & 0x01);
header->payloadLen = (WSopcode_t) (*buffer & 0x7F);
buffer++;
if(header->payloadLen == 126) {
headerLen += 2;
if(!handleWebsocketWaitFor(client, headerLen)) {
return;
}
header->payloadLen = buffer[0] << 8 | buffer[1];
buffer += 2;
} else if(header->payloadLen == 127) {
headerLen += 8;
// read 64bit integer as length
if(!handleWebsocketWaitFor(client, headerLen)) {
return;
}
if(buffer[0] != 0 || buffer[1] != 0 || buffer[2] != 0 || buffer[3] != 0) {
// really too big!
header->payloadLen = 0xFFFFFFFF;
} else {
header->payloadLen = buffer[4] << 24 | buffer[5] << 16 | buffer[6] << 8 | buffer[7];
}
buffer += 8;
}
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] ------- read massage frame -------\n", client->num);
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] fin: %u rsv1: %u rsv2: %u rsv3 %u opCode: %u\n", client->num, header->fin, header->rsv1, header->rsv2, header->rsv3, header->opCode);
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] mask: %u payloadLen: %u\n", client->num, header->mask, header->payloadLen);
if(header->payloadLen > WEBSOCKETS_MAX_DATA_SIZE) {
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] payload too big! (%u)\n", client->num, header->payloadLen);
clientDisconnect(client, 1009);
return;
}
if(header->mask) {
headerLen += 4;
if(!handleWebsocketWaitFor(client, headerLen)) {
return;
}
header->maskKey = buffer;
buffer += 4;
}
if(header->payloadLen > 0) {
// if text data we need one more
payload = (uint8_t *) malloc(header->payloadLen + 1);
if(!payload) {
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] to less memory to handle payload %d!\n", client->num, header->payloadLen);
clientDisconnect(client, 1011);
return;
}
readCb(client, payload, header->payloadLen, std::bind(&WebSockets::handleWebsocketPayloadCb, this, std::placeholders::_1, std::placeholders::_2, payload));
} else {
handleWebsocketPayloadCb(client, true, NULL);
}
}
void WebSockets::handleWebsocketPayloadCb(WSclient_t * client, bool ok, uint8_t * payload) {
WSMessageHeader_t * header = &client->cWsHeaderDecode;
if(ok) {
if(header->payloadLen > 0) {
payload[header->payloadLen] = 0x00;
if(header->mask) {
//decode XOR
for(size_t i = 0; i < header->payloadLen; i++) {
payload[i] = (payload[i] ^ header->maskKey[i % 4]);
}
}
}
switch(header->opCode) {
case WSop_text:
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] text: %s\n", client->num, payload);
// no break here!
case WSop_binary:
case WSop_continuation:
messageReceived(client, header->opCode, payload, header->payloadLen, header->fin);
break;
case WSop_ping:
// send pong back
sendFrame(client, WSop_pong, payload, header->payloadLen, true);
break;
case WSop_pong:
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] get pong (%s)\n", client->num, payload ? (const char*)payload : "");
break;
case WSop_close: {
#ifndef NODEBUG_WEBSOCKETS
uint16_t reasonCode = 1000;
if(header->payloadLen >= 2) {
reasonCode = payload[0] << 8 | payload[1];
}
#endif
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] get ask for close. Code: %d", client->num, reasonCode);
if(header->payloadLen > 2) {
DEBUG_WEBSOCKETS(" (%s)\n", (payload + 2));
} else {
DEBUG_WEBSOCKETS("\n");
}
clientDisconnect(client, 1000);
}
break;
default:
clientDisconnect(client, 1002);
break;
}
if(payload) {
free(payload);
}
// reset input
client->cWsRXsize = 0;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
//register callback for next message
handleWebsocketWaitFor(client, 2);
#endif
} else {
DEBUG_WEBSOCKETS("[WS][%d][handleWebsocket] missing data!\n", client->num);
free(payload);
clientDisconnect(client, 1002);
}
}
/**
* generate the key for Sec-WebSocket-Accept
* @param clientKey String
* @return String Accept Key
*/
String WebSockets::acceptKey(String & clientKey) {
uint8_t sha1HashBin[20] = { 0 };
#ifdef ESP8266
sha1(clientKey + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11", &sha1HashBin[0]);
#elif defined(ESP32)
String data = clientKey + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
esp_sha(SHA1, (unsigned char*)data.c_str(), data.length(), &sha1HashBin[0]);
#else
clientKey += "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
SHA1_CTX ctx;
SHA1Init(&ctx);
SHA1Update(&ctx, (const unsigned char*)clientKey.c_str(), clientKey.length());
SHA1Final(&sha1HashBin[0], &ctx);
#endif
String key = base64_encode(sha1HashBin, 20);
key.trim();
return key;
}
/**
* base64_encode
* @param data uint8_t *
* @param length size_t
* @return base64 encoded String
*/
String WebSockets::base64_encode(uint8_t * data, size_t length) {
size_t size = ((length * 1.6f) + 1);
char * buffer = (char *) malloc(size);
if(buffer) {
base64_encodestate _state;
base64_init_encodestate(&_state);
int len = base64_encode_block((const char *) &data[0], length, &buffer[0], &_state);
len = base64_encode_blockend((buffer + len), &_state);
String base64 = String(buffer);
free(buffer);
return base64;
}
return String("-FAIL-");
}
/**
* read x byte from tcp or get timeout
* @param client WSclient_t *
* @param out uint8_t * data buffer
* @param n size_t byte count
* @return true if ok
*/
bool WebSockets::readCb(WSclient_t * client, uint8_t * out, size_t n, WSreadWaitCb cb) {
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
if(!client->tcp || !client->tcp->connected()) {
return false;
}
client->tcp->readBytes(out, n, std::bind([](WSclient_t * client, bool ok, WSreadWaitCb cb) {
if(cb) {
cb(client, ok);
}
}, client, std::placeholders::_1, cb));
#else
unsigned long t = millis();
size_t len;
DEBUG_WEBSOCKETS("[readCb] n: %zu t: %lu\n", n, t);
while(n > 0) {
if(client->tcp == NULL) {
DEBUG_WEBSOCKETS("[readCb] tcp is null!\n");
if(cb) {
cb(client, false);
}
return false;
}
if(!client->tcp->connected()) {
DEBUG_WEBSOCKETS("[readCb] not connected!\n");
if(cb) {
cb(client, false);
}
return false;
}
if((millis() - t) > WEBSOCKETS_TCP_TIMEOUT) {
DEBUG_WEBSOCKETS("[readCb] receive TIMEOUT! %lu\n", (millis() - t));
if(cb) {
cb(client, false);
}
return false;
}
if(!client->tcp->available()) {
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
continue;
}
len = client->tcp->read((uint8_t*) out, n);
if(len) {
t = millis();
out += len;
n -= len;
//DEBUG_WEBSOCKETS("Receive %d left %d!\n", len, n);
} else {
//DEBUG_WEBSOCKETS("Receive %d left %d!\n", len, n);
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
}
if(cb) {
cb(client, true);
}
#endif
return true;
}
/**
* write x byte to tcp or get timeout
* @param client WSclient_t *
* @param out uint8_t * data buffer
* @param n size_t byte count
* @return bytes send
*/
size_t WebSockets::write(WSclient_t * client, uint8_t *out, size_t n) {
if(out == NULL) return 0;
if(client == NULL) return 0;
unsigned long t = millis();
size_t len = 0;
size_t total = 0;
DEBUG_WEBSOCKETS("[write] n: %zu t: %lu\n", n, t);
while(n > 0) {
if(client->tcp == NULL) {
DEBUG_WEBSOCKETS("[write] tcp is null!\n");
break;
}
if(!client->tcp->connected()) {
DEBUG_WEBSOCKETS("[write] not connected!\n");
break;
}
if((millis() - t) > WEBSOCKETS_TCP_TIMEOUT) {
DEBUG_WEBSOCKETS("[write] write TIMEOUT! %lu\n", (millis() - t));
break;
}
len = client->tcp->write((const uint8_t*)out, n);
if(len) {
t = millis();
out += len;
n -= len;
total += len;
//DEBUG_WEBSOCKETS("write %d left %d!\n", len, n);
} else {
//DEBUG_WEBSOCKETS("write %d failed left %d!\n", len, n);
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
}
return total;
}
size_t WebSockets::write(WSclient_t * client, const char *out) {
if(client == NULL) return 0;
if(out == NULL) return 0;
return write(client, (uint8_t*)out, strlen(out));
}

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/**
* @file WebSockets.h
* @date 20.05.2015
* @author Markus Sattler
*
* Copyright (c) 2015 Markus Sattler. All rights reserved.
* This file is part of the WebSockets for Arduino.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef WEBSOCKETS_H_
#define WEBSOCKETS_H_
#ifdef STM32_DEVICE
#include <application.h>
#define bit(b) (1UL << (b)) // Taken directly from Arduino.h
#else
#include <Arduino.h>
#include <IPAddress.h>
#endif
#ifdef ARDUINO_ARCH_AVR
#error Version 2.x.x currently does not support Arduino with AVR since there is no support for std namespace of c++.
#error Use Version 1.x.x. (ATmega branch)
#else
#include <functional>
#endif
#ifndef NODEBUG_WEBSOCKETS
#ifdef DEBUG_ESP_PORT
#define DEBUG_WEBSOCKETS(...) DEBUG_ESP_PORT.printf( __VA_ARGS__ )
#else
//#define DEBUG_WEBSOCKETS(...) os_printf( __VA_ARGS__ )
#endif
#endif
#ifndef DEBUG_WEBSOCKETS
#define DEBUG_WEBSOCKETS(...)
#define NODEBUG_WEBSOCKETS
#endif
#if defined(ESP8266) || defined(ESP32)
#define WEBSOCKETS_MAX_DATA_SIZE (15*1024)
#define WEBSOCKETS_USE_BIG_MEM
#define GET_FREE_HEAP ESP.getFreeHeap()
// moves all Header strings to Flash (~300 Byte)
//#define WEBSOCKETS_SAVE_RAM
#elif defined(STM32_DEVICE)
#define WEBSOCKETS_MAX_DATA_SIZE (15*1024)
#define WEBSOCKETS_USE_BIG_MEM
#define GET_FREE_HEAP System.freeMemory()
#else
//atmega328p has only 2KB ram!
#define WEBSOCKETS_MAX_DATA_SIZE (1024)
// moves all Header strings to Flash
#define WEBSOCKETS_SAVE_RAM
#endif
#define WEBSOCKETS_TCP_TIMEOUT (2000)
#define NETWORK_ESP8266_ASYNC (0)
#define NETWORK_ESP8266 (1)
#define NETWORK_W5100 (2)
#define NETWORK_ENC28J60 (3)
#define NETWORK_ESP32 (4)
// max size of the WS Message Header
#define WEBSOCKETS_MAX_HEADER_SIZE (14)
#if !defined(WEBSOCKETS_NETWORK_TYPE)
// select Network type based
#if defined(ESP8266) || defined(ESP31B)
#define WEBSOCKETS_NETWORK_TYPE NETWORK_ESP8266
//#define WEBSOCKETS_NETWORK_TYPE NETWORK_ESP8266_ASYNC
//#define WEBSOCKETS_NETWORK_TYPE NETWORK_W5100
#elif defined(ESP32)
#define WEBSOCKETS_NETWORK_TYPE NETWORK_ESP32
#else
#define WEBSOCKETS_NETWORK_TYPE NETWORK_W5100
#endif
#endif
// Includes and defined based on Network Type
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
// Note:
// No SSL/WSS support for client in Async mode
// TLS lib need a sync interface!
#if defined(ESP8266)
#include <ESP8266WiFi.h>
#elif defined(ESP32)
#include <WiFi.h>
#include <WiFiClientSecure.h>
#elif defined(ESP31B)
#include <ESP31BWiFi.h>
#else
#error "network type ESP8266 ASYNC only possible on the ESP mcu!"
#endif
#include <ESPAsyncTCP.h>
#include <ESPAsyncTCPbuffer.h>
#define WEBSOCKETS_NETWORK_CLASS AsyncTCPbuffer
#define WEBSOCKETS_NETWORK_SERVER_CLASS AsyncServer
#elif (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
#if !defined(ESP8266) && !defined(ESP31B)
#error "network type ESP8266 only possible on the ESP mcu!"
#endif
#ifdef ESP8266
#include <ESP8266WiFi.h>
#else
#include <ESP31BWiFi.h>
#endif
#define WEBSOCKETS_NETWORK_CLASS WiFiClient
#define WEBSOCKETS_NETWORK_SERVER_CLASS WiFiServer
#elif (WEBSOCKETS_NETWORK_TYPE == NETWORK_W5100)
#ifdef STM32_DEVICE
#define WEBSOCKETS_NETWORK_CLASS TCPClient
#define WEBSOCKETS_NETWORK_SERVER_CLASS TCPServer
#else
#include <Ethernet.h>
#include <SPI.h>
#define WEBSOCKETS_NETWORK_CLASS EthernetClient
#define WEBSOCKETS_NETWORK_SERVER_CLASS EthernetServer
#endif
#elif (WEBSOCKETS_NETWORK_TYPE == NETWORK_ENC28J60)
#include <UIPEthernet.h>
#define WEBSOCKETS_NETWORK_CLASS UIPClient
#define WEBSOCKETS_NETWORK_SERVER_CLASS UIPServer
#elif (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
#include <WiFi.h>
#include <WiFiClientSecure.h>
#define WEBSOCKETS_NETWORK_CLASS WiFiClient
#define WEBSOCKETS_NETWORK_SERVER_CLASS WiFiServer
#else
#error "no network type selected!"
#endif
// moves all Header strings to Flash (~300 Byte)
#ifdef WEBSOCKETS_SAVE_RAM
#define WEBSOCKETS_STRING(var) F(var)
#else
#define WEBSOCKETS_STRING(var) var
#endif
typedef enum {
WSC_NOT_CONNECTED,
WSC_HEADER,
WSC_CONNECTED
} WSclientsStatus_t;
typedef enum {
WStype_ERROR,
WStype_DISCONNECTED,
WStype_CONNECTED,
WStype_TEXT,
WStype_BIN,
WStype_FRAGMENT_TEXT_START,
WStype_FRAGMENT_BIN_START,
WStype_FRAGMENT,
WStype_FRAGMENT_FIN,
} WStype_t;
typedef enum {
WSop_continuation = 0x00, ///< %x0 denotes a continuation frame
WSop_text = 0x01, ///< %x1 denotes a text frame
WSop_binary = 0x02, ///< %x2 denotes a binary frame
///< %x3-7 are reserved for further non-control frames
WSop_close = 0x08, ///< %x8 denotes a connection close
WSop_ping = 0x09, ///< %x9 denotes a ping
WSop_pong = 0x0A ///< %xA denotes a pong
///< %xB-F are reserved for further control frames
} WSopcode_t;
typedef struct {
bool fin;
bool rsv1;
bool rsv2;
bool rsv3;
WSopcode_t opCode;
bool mask;
size_t payloadLen;
uint8_t * maskKey;
} WSMessageHeader_t;
typedef struct {
uint8_t num; ///< connection number
WSclientsStatus_t status;
WEBSOCKETS_NETWORK_CLASS * tcp;
bool isSocketIO; ///< client for socket.io server
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
bool isSSL; ///< run in ssl mode
WiFiClientSecure * ssl;
#endif
String cUrl; ///< http url
uint16_t cCode; ///< http code
bool cIsUpgrade; ///< Connection == Upgrade
bool cIsWebsocket; ///< Upgrade == websocket
String cSessionId; ///< client Set-Cookie (session id)
String cKey; ///< client Sec-WebSocket-Key
String cAccept; ///< client Sec-WebSocket-Accept
String cProtocol; ///< client Sec-WebSocket-Protocol
String cExtensions; ///< client Sec-WebSocket-Extensions
uint16_t cVersion; ///< client Sec-WebSocket-Version
uint8_t cWsRXsize; ///< State of the RX
uint8_t cWsHeader[WEBSOCKETS_MAX_HEADER_SIZE]; ///< RX WS Message buffer
WSMessageHeader_t cWsHeaderDecode;
String base64Authorization; ///< Base64 encoded Auth request
String plainAuthorization; ///< Base64 encoded Auth request
String extraHeaders;
bool cHttpHeadersValid; ///< non-websocket http header validity indicator
size_t cMandatoryHeadersCount; ///< non-websocket mandatory http headers present count
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
String cHttpLine; ///< HTTP header lines
#endif
} WSclient_t;
class WebSockets {
protected:
#ifdef __AVR__
typedef void (*WSreadWaitCb)(WSclient_t * client, bool ok);
#else
typedef std::function<void(WSclient_t * client, bool ok)> WSreadWaitCb;
#endif
virtual void clientDisconnect(WSclient_t * client) = 0;
virtual bool clientIsConnected(WSclient_t * client) = 0;
virtual void messageReceived(WSclient_t * client, WSopcode_t opcode, uint8_t * payload, size_t length, bool fin) = 0;
void clientDisconnect(WSclient_t * client, uint16_t code, char * reason = NULL, size_t reasonLen = 0);
bool sendFrame(WSclient_t * client, WSopcode_t opcode, uint8_t * payload = NULL, size_t length = 0, bool mask = false, bool fin = true, bool headerToPayload = false);
void headerDone(WSclient_t * client);
void handleWebsocket(WSclient_t * client);
bool handleWebsocketWaitFor(WSclient_t * client, size_t size);
void handleWebsocketCb(WSclient_t * client);
void handleWebsocketPayloadCb(WSclient_t * client, bool ok, uint8_t * payload);
String acceptKey(String & clientKey);
String base64_encode(uint8_t * data, size_t length);
bool readCb(WSclient_t * client, uint8_t *out, size_t n, WSreadWaitCb cb);
virtual size_t write(WSclient_t * client, uint8_t *out, size_t n);
size_t write(WSclient_t * client, const char *out);
};
#ifndef UNUSED
#define UNUSED(var) (void)(var)
#endif
#endif /* WEBSOCKETS_H_ */

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/**
* @file WebSocketsClient.cpp
* @date 20.05.2015
* @author Markus Sattler
*
* Copyright (c) 2015 Markus Sattler. All rights reserved.
* This file is part of the WebSockets for Arduino.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "WebSockets.h"
#include "WebSocketsClient.h"
WebSocketsClient::WebSocketsClient() {
_cbEvent = NULL;
_client.num = 0;
_client.extraHeaders = WEBSOCKETS_STRING("Origin: file://");
}
WebSocketsClient::~WebSocketsClient() {
disconnect();
}
/**
* calles to init the Websockets server
*/
void WebSocketsClient::begin(const char *host, uint16_t port, const char * url, const char * protocol) {
_host = host;
_port = port;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
_fingerprint = "";
#endif
_client.num = 0;
_client.status = WSC_NOT_CONNECTED;
_client.tcp = NULL;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
_client.isSSL = false;
_client.ssl = NULL;
#endif
_client.cUrl = url;
_client.cCode = 0;
_client.cIsUpgrade = false;
_client.cIsWebsocket = true;
_client.cKey = "";
_client.cAccept = "";
_client.cProtocol = protocol;
_client.cExtensions = "";
_client.cVersion = 0;
_client.base64Authorization = "";
_client.plainAuthorization = "";
_client.isSocketIO = false;
#ifdef ESP8266
randomSeed(RANDOM_REG32);
#else
// todo find better seed
randomSeed(millis());
#endif
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
asyncConnect();
#endif
_lastConnectionFail = 0;
_reconnectInterval = 500;
}
void WebSocketsClient::begin(String host, uint16_t port, String url, String protocol) {
begin(host.c_str(), port, url.c_str(), protocol.c_str());
}
void WebSocketsClient::begin(IPAddress host, uint16_t port, const char * url, const char * protocol) {
return begin(host.toString().c_str(), port, url, protocol);
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
void WebSocketsClient::beginSSL(const char *host, uint16_t port, const char * url, const char * fingerprint, const char * protocol) {
begin(host, port, url, protocol);
_client.isSSL = true;
_fingerprint = fingerprint;
}
void WebSocketsClient::beginSSL(String host, uint16_t port, String url, String fingerprint, String protocol) {
beginSSL(host.c_str(), port, url.c_str(), fingerprint.c_str(), protocol.c_str());
}
#endif
void WebSocketsClient::beginSocketIO(const char *host, uint16_t port, const char * url, const char * protocol) {
begin(host, port, url, protocol);
_client.isSocketIO = true;
}
void WebSocketsClient::beginSocketIO(String host, uint16_t port, String url, String protocol) {
beginSocketIO(host.c_str(), port, url.c_str(), protocol.c_str());
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
void WebSocketsClient::beginSocketIOSSL(const char *host, uint16_t port, const char * url, const char * protocol) {
begin(host, port, url, protocol);
_client.isSocketIO = true;
_client.isSSL = true;
_fingerprint = "";
}
void WebSocketsClient::beginSocketIOSSL(String host, uint16_t port, String url, String protocol) {
beginSocketIOSSL(host.c_str(), port, url.c_str(), protocol.c_str());
}
#endif
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
/**
* called in arduino loop
*/
void WebSocketsClient::loop(void) {
if(!clientIsConnected(&_client)) {
// do not flood the server
if((millis() - _lastConnectionFail) < _reconnectInterval) {
return;
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
if(_client.isSSL) {
DEBUG_WEBSOCKETS("[WS-Client] connect wss...\n");
if(_client.ssl) {
delete _client.ssl;
_client.ssl = NULL;
_client.tcp = NULL;
}
_client.ssl = new WiFiClientSecure();
_client.tcp = _client.ssl;
} else {
DEBUG_WEBSOCKETS("[WS-Client] connect ws...\n");
if(_client.tcp) {
delete _client.tcp;
_client.tcp = NULL;
}
_client.tcp = new WiFiClient();
}
#else
_client.tcp = new WEBSOCKETS_NETWORK_CLASS();
#endif
if(!_client.tcp) {
DEBUG_WEBSOCKETS("[WS-Client] creating Network class failed!");
return;
}
if(_client.tcp->connect(_host.c_str(), _port)) {
connectedCb();
_lastConnectionFail = 0;
} else {
connectFailedCb();
_lastConnectionFail = millis();
}
} else {
handleClientData();
}
}
#endif
/**
* set callback function
* @param cbEvent WebSocketServerEvent
*/
void WebSocketsClient::onEvent(WebSocketClientEvent cbEvent) {
_cbEvent = cbEvent;
}
/**
* send text data to client
* @param num uint8_t client id
* @param payload uint8_t *
* @param length size_t
* @param headerToPayload bool (see sendFrame for more details)
* @return true if ok
*/
bool WebSocketsClient::sendTXT(uint8_t * payload, size_t length, bool headerToPayload) {
if(length == 0) {
length = strlen((const char *) payload);
}
if(clientIsConnected(&_client)) {
return sendFrame(&_client, WSop_text, payload, length, true, true, headerToPayload);
}
return false;
}
bool WebSocketsClient::sendTXT(const uint8_t * payload, size_t length) {
return sendTXT((uint8_t *) payload, length);
}
bool WebSocketsClient::sendTXT(char * payload, size_t length, bool headerToPayload) {
return sendTXT((uint8_t *) payload, length, headerToPayload);
}
bool WebSocketsClient::sendTXT(const char * payload, size_t length) {
return sendTXT((uint8_t *) payload, length);
}
bool WebSocketsClient::sendTXT(String & payload) {
return sendTXT((uint8_t *) payload.c_str(), payload.length());
}
/**
* send binary data to client
* @param num uint8_t client id
* @param payload uint8_t *
* @param length size_t
* @param headerToPayload bool (see sendFrame for more details)
* @return true if ok
*/
bool WebSocketsClient::sendBIN(uint8_t * payload, size_t length, bool headerToPayload) {
if(clientIsConnected(&_client)) {
return sendFrame(&_client, WSop_binary, payload, length, true, true, headerToPayload);
}
return false;
}
bool WebSocketsClient::sendBIN(const uint8_t * payload, size_t length) {
return sendBIN((uint8_t *) payload, length);
}
/**
* sends a WS ping to Server
* @param payload uint8_t *
* @param length size_t
* @return true if ping is send out
*/
bool WebSocketsClient::sendPing(uint8_t * payload, size_t length) {
if(clientIsConnected(&_client)) {
return sendFrame(&_client, WSop_ping, payload, length, true);
}
return false;
}
bool WebSocketsClient::sendPing(String & payload) {
return sendPing((uint8_t *) payload.c_str(), payload.length());
}
/**
* disconnect one client
* @param num uint8_t client id
*/
void WebSocketsClient::disconnect(void) {
if(clientIsConnected(&_client)) {
WebSockets::clientDisconnect(&_client, 1000);
}
}
/**
* set the Authorizatio for the http request
* @param user const char *
* @param password const char *
*/
void WebSocketsClient::setAuthorization(const char * user, const char * password) {
if(user && password) {
String auth = user;
auth += ":";
auth += password;
_client.base64Authorization = base64_encode((uint8_t *) auth.c_str(), auth.length());
}
}
/**
* set the Authorizatio for the http request
* @param auth const char * base64
*/
void WebSocketsClient::setAuthorization(const char * auth) {
if(auth) {
//_client.base64Authorization = auth;
_client.plainAuthorization = auth;
}
}
/**
* set extra headers for the http request;
* separate headers by "\r\n"
* @param extraHeaders const char * extraHeaders
*/
void WebSocketsClient::setExtraHeaders(const char * extraHeaders) {
_client.extraHeaders = extraHeaders;
}
/**
* set the reconnect Interval
* how long to wait after a connection initiate failed
* @param time in ms
*/
void WebSocketsClient::setReconnectInterval(unsigned long time) {
_reconnectInterval = time;
}
//#################################################################################
//#################################################################################
//#################################################################################
/**
*
* @param client WSclient_t * ptr to the client struct
* @param opcode WSopcode_t
* @param payload uint8_t *
* @param length size_t
*/
void WebSocketsClient::messageReceived(WSclient_t * client, WSopcode_t opcode, uint8_t * payload, size_t length, bool fin) {
WStype_t type = WStype_ERROR;
UNUSED(client);
switch(opcode) {
case WSop_text:
type = fin ? WStype_TEXT : WStype_FRAGMENT_TEXT_START;
break;
case WSop_binary:
type = fin ? WStype_BIN : WStype_FRAGMENT_BIN_START;
break;
case WSop_continuation:
type = fin ? WStype_FRAGMENT_FIN : WStype_FRAGMENT;
break;
case WSop_close:
case WSop_ping:
case WSop_pong:
default:
break;
}
runCbEvent(type, payload, length);
}
/**
* Disconnect an client
* @param client WSclient_t * ptr to the client struct
*/
void WebSocketsClient::clientDisconnect(WSclient_t * client) {
bool event = false;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
if(client->isSSL && client->ssl) {
if(client->ssl->connected()) {
client->ssl->flush();
client->ssl->stop();
}
event = true;
delete client->ssl;
client->ssl = NULL;
client->tcp = NULL;
}
#endif
if(client->tcp) {
if(client->tcp->connected()) {
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
client->tcp->flush();
#endif
client->tcp->stop();
}
event = true;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->status = WSC_NOT_CONNECTED;
#else
delete client->tcp;
#endif
client->tcp = NULL;
}
client->cCode = 0;
client->cKey = "";
client->cAccept = "";
client->cVersion = 0;
client->cIsUpgrade = false;
client->cIsWebsocket = false;
client->cSessionId = "";
client->status = WSC_NOT_CONNECTED;
DEBUG_WEBSOCKETS("[WS-Client] client disconnected.\n");
if(event) {
runCbEvent(WStype_DISCONNECTED, NULL, 0);
}
}
/**
* get client state
* @param client WSclient_t * ptr to the client struct
* @return true = conneted
*/
bool WebSocketsClient::clientIsConnected(WSclient_t * client) {
if(!client->tcp) {
return false;
}
if(client->tcp->connected()) {
if(client->status != WSC_NOT_CONNECTED) {
return true;
}
} else {
// client lost
if(client->status != WSC_NOT_CONNECTED) {
DEBUG_WEBSOCKETS("[WS-Client] connection lost.\n");
// do cleanup
clientDisconnect(client);
}
}
if(client->tcp) {
// do cleanup
clientDisconnect(client);
}
return false;
}
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
/**
* Handel incomming data from Client
*/
void WebSocketsClient::handleClientData(void) {
int len = _client.tcp->available();
if(len > 0) {
switch(_client.status) {
case WSC_HEADER: {
String headerLine = _client.tcp->readStringUntil('\n');
handleHeader(&_client, &headerLine);
}
break;
case WSC_CONNECTED:
WebSockets::handleWebsocket(&_client);
break;
default:
WebSockets::clientDisconnect(&_client, 1002);
break;
}
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
delay(0);
#endif
}
#endif
/**
* send the WebSocket header to Server
* @param client WSclient_t * ptr to the client struct
*/
void WebSocketsClient::sendHeader(WSclient_t * client) {
static const char * NEW_LINE = "\r\n";
DEBUG_WEBSOCKETS("[WS-Client][sendHeader] sending header...\n");
uint8_t randomKey[16] = { 0 };
for(uint8_t i = 0; i < sizeof(randomKey); i++) {
randomKey[i] = random(0xFF);
}
client->cKey = base64_encode(&randomKey[0], 16);
#ifndef NODEBUG_WEBSOCKETS
unsigned long start = micros();
#endif
String handshake;
bool ws_header = true;
String url = client->cUrl;
if(client->isSocketIO) {
if(client->cSessionId.length() == 0) {
url += WEBSOCKETS_STRING("&transport=polling");
ws_header = false;
} else {
url += WEBSOCKETS_STRING("&transport=websocket&sid=");
url += client->cSessionId;
}
}
handshake = WEBSOCKETS_STRING("GET ");
handshake += url + WEBSOCKETS_STRING(" HTTP/1.1\r\n"
"Host: ");
handshake += _host + ":" + _port + NEW_LINE;
if(ws_header) {
handshake += WEBSOCKETS_STRING("Connection: Upgrade\r\n"
"Upgrade: websocket\r\n"
"Sec-WebSocket-Version: 13\r\n"
"Sec-WebSocket-Key: ");
handshake += client->cKey + NEW_LINE;
if(client->cProtocol.length() > 0) {
handshake += WEBSOCKETS_STRING("Sec-WebSocket-Protocol: ");
handshake += client->cProtocol + NEW_LINE;
}
if(client->cExtensions.length() > 0) {
handshake += WEBSOCKETS_STRING("Sec-WebSocket-Extensions: ");
handshake += client->cExtensions + NEW_LINE;
}
} else {
handshake += WEBSOCKETS_STRING("Connection: keep-alive\r\n");
}
// add extra headers; by default this includes "Origin: file://"
if(client->extraHeaders) {
handshake += client->extraHeaders + NEW_LINE;
}
handshake += WEBSOCKETS_STRING("User-Agent: arduino-WebSocket-Client\r\n");
if(client->base64Authorization.length() > 0) {
handshake += WEBSOCKETS_STRING("Authorization: Basic ");
handshake += client->base64Authorization + NEW_LINE;
}
if(client->plainAuthorization.length() > 0) {
handshake += WEBSOCKETS_STRING("Authorization: ");
handshake += client->plainAuthorization + NEW_LINE;
}
handshake += NEW_LINE;
DEBUG_WEBSOCKETS("[WS-Client][sendHeader] handshake %s", (uint8_t* )handshake.c_str());
write(client, (uint8_t*) handshake.c_str(), handshake.length());
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->tcp->readStringUntil('\n', &(client->cHttpLine), std::bind(&WebSocketsClient::handleHeader, this, client, &(client->cHttpLine)));
#endif
DEBUG_WEBSOCKETS("[WS-Client][sendHeader] sending header... Done (%luus).\n", (micros() - start));
}
/**
* handle the WebSocket header reading
* @param client WSclient_t * ptr to the client struct
*/
void WebSocketsClient::handleHeader(WSclient_t * client, String * headerLine) {
headerLine->trim(); // remove \r
if(headerLine->length() > 0) {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] RX: %s\n", headerLine->c_str());
if(headerLine->startsWith(WEBSOCKETS_STRING("HTTP/1."))) {
// "HTTP/1.1 101 Switching Protocols"
client->cCode = headerLine->substring(9, headerLine->indexOf(' ', 9)).toInt();
} else if(headerLine->indexOf(':')) {
String headerName = headerLine->substring(0, headerLine->indexOf(':'));
String headerValue = headerLine->substring(headerLine->indexOf(':') + 1);
// remove space in the beginning (RFC2616)
if(headerValue[0] == ' ') {
headerValue.remove(0, 1);
}
if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Connection"))) {
if(headerValue.equalsIgnoreCase(WEBSOCKETS_STRING("upgrade"))) {
client->cIsUpgrade = true;
}
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Upgrade"))) {
if(headerValue.equalsIgnoreCase(WEBSOCKETS_STRING("websocket"))) {
client->cIsWebsocket = true;
}
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Accept"))) {
client->cAccept = headerValue;
client->cAccept.trim(); // see rfc6455
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Protocol"))) {
client->cProtocol = headerValue;
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Extensions"))) {
client->cExtensions = headerValue;
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Version"))) {
client->cVersion = headerValue.toInt();
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Set-Cookie"))) {
if(headerValue.indexOf(WEBSOCKETS_STRING("HttpOnly")) > -1) {
client->cSessionId = headerValue.substring(headerValue.indexOf('=') + 1, headerValue.indexOf(";"));
} else {
client->cSessionId = headerValue.substring(headerValue.indexOf('=') + 1);
}
}
} else {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Header error (%s)\n", headerLine->c_str());
}
(*headerLine) = "";
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->tcp->readStringUntil('\n', &(client->cHttpLine), std::bind(&WebSocketsClient::handleHeader, this, client, &(client->cHttpLine)));
#endif
} else {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Header read fin.\n");
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Client settings:\n");
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cURL: %s\n", client->cUrl.c_str());
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cKey: %s\n", client->cKey.c_str());
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Server header:\n");
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cCode: %d\n", client->cCode);
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cIsUpgrade: %d\n", client->cIsUpgrade);
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cIsWebsocket: %d\n", client->cIsWebsocket);
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cAccept: %s\n", client->cAccept.c_str());
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cProtocol: %s\n", client->cProtocol.c_str());
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cExtensions: %s\n", client->cExtensions.c_str());
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cVersion: %d\n", client->cVersion);
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] - cSessionId: %s\n", client->cSessionId.c_str());
bool ok = (client->cIsUpgrade && client->cIsWebsocket);
if(ok) {
switch(client->cCode) {
case 101: ///< Switching Protocols
break;
case 200:
if(client->isSocketIO) {
break;
}
case 403: ///< Forbidden
// todo handle login
default: ///< Server dont unterstand requrst
ok = false;
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] serverCode is not 101 (%d)\n", client->cCode);
clientDisconnect(client);
_lastConnectionFail = millis();
break;
}
}
if(ok) {
if(client->cAccept.length() == 0) {
ok = false;
} else {
// generate Sec-WebSocket-Accept key for check
String sKey = acceptKey(client->cKey);
if(sKey != client->cAccept) {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Sec-WebSocket-Accept is wrong\n");
ok = false;
}
}
}
if(ok) {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Websocket connection init done.\n");
headerDone(client);
runCbEvent(WStype_CONNECTED, (uint8_t *) client->cUrl.c_str(), client->cUrl.length());
} else if(clientIsConnected(client) && client->isSocketIO && client->cSessionId.length() > 0) {
sendHeader(client);
} else {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] no Websocket connection close.\n");
_lastConnectionFail = millis();
if(clientIsConnected(client)) {
write(client, "This is a webSocket client!");
}
clientDisconnect(client);
}
}
}
void WebSocketsClient::connectedCb() {
DEBUG_WEBSOCKETS("[WS-Client] connected to %s:%u.\n", _host.c_str(), _port);
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
_client.tcp->onDisconnect(std::bind([](WebSocketsClient * c, AsyncTCPbuffer * obj, WSclient_t * client) -> bool {
DEBUG_WEBSOCKETS("[WS-Server][%d] Disconnect client\n", client->num);
client->status = WSC_NOT_CONNECTED;
client->tcp = NULL;
// reconnect
c->asyncConnect();
return true;
}, this, std::placeholders::_1, &_client));
#endif
_client.status = WSC_HEADER;
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
// set Timeout for readBytesUntil and readStringUntil
_client.tcp->setTimeout(WEBSOCKETS_TCP_TIMEOUT);
#endif
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
_client.tcp->setNoDelay(true);
if(_client.isSSL && _fingerprint.length()) {
if(!_client.ssl->verify(_fingerprint.c_str(), _host.c_str())) {
DEBUG_WEBSOCKETS("[WS-Client] certificate mismatch\n");
WebSockets::clientDisconnect(&_client, 1000);
return;
}
}
#endif
// send Header to Server
sendHeader(&_client);
}
void WebSocketsClient::connectFailedCb() {
DEBUG_WEBSOCKETS("[WS-Client] connection to %s:%u Faild\n", _host.c_str(), _port);
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
void WebSocketsClient::asyncConnect() {
DEBUG_WEBSOCKETS("[WS-Client] asyncConnect...\n");
AsyncClient * tcpclient = new AsyncClient();
if(!tcpclient) {
DEBUG_WEBSOCKETS("[WS-Client] creating AsyncClient class failed!\n");
return;
}
tcpclient->onDisconnect([](void *obj, AsyncClient* c) {
c->free();
delete c;
});
tcpclient->onConnect(std::bind([](WebSocketsClient * ws , AsyncClient * tcp) {
ws->_client.tcp = new AsyncTCPbuffer(tcp);
if(!ws->_client.tcp) {
DEBUG_WEBSOCKETS("[WS-Client] creating Network class failed!\n");
ws->connectFailedCb();
return;
}
ws->connectedCb();
}, this, std::placeholders::_2));
tcpclient->onError(std::bind([](WebSocketsClient * ws , AsyncClient * tcp) {
ws->connectFailedCb();
// reconnect
ws->asyncConnect();
}, this, std::placeholders::_2));
if(!tcpclient->connect(_host.c_str(), _port)) {
connectFailedCb();
delete tcpclient;
}
}
#endif

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/**
* @file WebSocketsClient.h
* @date 20.05.2015
* @author Markus Sattler
*
* Copyright (c) 2015 Markus Sattler. All rights reserved.
* This file is part of the WebSockets for Arduino.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef WEBSOCKETSCLIENT_H_
#define WEBSOCKETSCLIENT_H_
#include "WebSockets.h"
class WebSocketsClient: private WebSockets {
public:
#ifdef __AVR__
typedef void (*WebSocketClientEvent)(WStype_t type, uint8_t * payload, size_t length);
#else
typedef std::function<void (WStype_t type, uint8_t * payload, size_t length)> WebSocketClientEvent;
#endif
WebSocketsClient(void);
virtual ~WebSocketsClient(void);
void begin(const char *host, uint16_t port, const char * url = "/", const char * protocol = "arduino");
void begin(String host, uint16_t port, String url = "/", String protocol = "arduino");
void begin(IPAddress host, uint16_t port, const char * url = "/", const char * protocol = "arduino");
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
void beginSSL(const char *host, uint16_t port, const char * url = "/", const char * = "", const char * protocol = "arduino");
void beginSSL(String host, uint16_t port, String url = "/", String fingerprint = "", String protocol = "arduino");
#endif
void beginSocketIO(const char *host, uint16_t port, const char * url = "/socket.io/?EIO=3", const char * protocol = "arduino");
void beginSocketIO(String host, uint16_t port, String url = "/socket.io/?EIO=3", String protocol = "arduino");
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
void beginSocketIOSSL(const char *host, uint16_t port, const char * url = "/socket.io/?EIO=3", const char * protocol = "arduino");
void beginSocketIOSSL(String host, uint16_t port, String url = "/socket.io/?EIO=3", String protocol = "arduino");
#endif
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
void loop(void);
#else
// Async interface not need a loop call
void loop(void) __attribute__ ((deprecated)) {}
#endif
void onEvent(WebSocketClientEvent cbEvent);
bool sendTXT(uint8_t * payload, size_t length = 0, bool headerToPayload = false);
bool sendTXT(const uint8_t * payload, size_t length = 0);
bool sendTXT(char * payload, size_t length = 0, bool headerToPayload = false);
bool sendTXT(const char * payload, size_t length = 0);
bool sendTXT(String & payload);
bool sendBIN(uint8_t * payload, size_t length, bool headerToPayload = false);
bool sendBIN(const uint8_t * payload, size_t length);
bool sendPing(uint8_t * payload = NULL, size_t length = 0);
bool sendPing(String & payload);
void disconnect(void);
void setAuthorization(const char * user, const char * password);
void setAuthorization(const char * auth);
void setExtraHeaders(const char * extraHeaders = NULL);
void setReconnectInterval(unsigned long time);
protected:
String _host;
uint16_t _port;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
String _fingerprint;
#endif
WSclient_t _client;
WebSocketClientEvent _cbEvent;
unsigned long _lastConnectionFail;
unsigned long _reconnectInterval;
void messageReceived(WSclient_t * client, WSopcode_t opcode, uint8_t * payload, size_t length, bool fin);
void clientDisconnect(WSclient_t * client);
bool clientIsConnected(WSclient_t * client);
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
void handleClientData(void);
#endif
void sendHeader(WSclient_t * client);
void handleHeader(WSclient_t * client, String * headerLine);
void connectedCb();
void connectFailedCb();
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
void asyncConnect();
#endif
/**
* called for sending a Event to the app
* @param type WStype_t
* @param payload uint8_t *
* @param length size_t
*/
virtual void runCbEvent(WStype_t type, uint8_t * payload, size_t length) {
if(_cbEvent) {
_cbEvent(type, payload, length);
}
}
};
#endif /* WEBSOCKETSCLIENT_H_ */

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/**
* @file WebSocketsServer.cpp
* @date 20.05.2015
* @author Markus Sattler
*
* Copyright (c) 2015 Markus Sattler. All rights reserved.
* This file is part of the WebSockets for Arduino.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "WebSockets.h"
#include "WebSocketsServer.h"
WebSocketsServer::WebSocketsServer(uint16_t port, String origin, String protocol) {
_port = port;
_origin = origin;
_protocol = protocol;
_runnning = false;
_server = new WEBSOCKETS_NETWORK_SERVER_CLASS(port);
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
_server->onClient([](void *s, AsyncClient* c){
((WebSocketsServer*)s)->newClient(new AsyncTCPbuffer(c));
}, this);
#endif
_cbEvent = NULL;
_httpHeaderValidationFunc = NULL;
_mandatoryHttpHeaders = NULL;
_mandatoryHttpHeaderCount = 0;
memset(&_clients[0], 0x00, (sizeof(WSclient_t) * WEBSOCKETS_SERVER_CLIENT_MAX));
}
WebSocketsServer::~WebSocketsServer() {
// disconnect all clients
close();
if (_mandatoryHttpHeaders)
delete[] _mandatoryHttpHeaders;
_mandatoryHttpHeaderCount = 0;
}
/**
* called to initialize the Websocket server
*/
void WebSocketsServer::begin(void) {
WSclient_t * client;
// init client storage
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
client->num = i;
client->status = WSC_NOT_CONNECTED;
client->tcp = NULL;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
client->isSSL = false;
client->ssl = NULL;
#endif
client->cUrl = "";
client->cCode = 0;
client->cKey = "";
client->cProtocol = "";
client->cVersion = 0;
client->cIsUpgrade = false;
client->cIsWebsocket = false;
client->base64Authorization = "";
client->cWsRXsize = 0;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->cHttpLine = "";
#endif
}
#ifdef ESP8266
randomSeed(RANDOM_REG32);
#elif defined(ESP32)
#define DR_REG_RNG_BASE 0x3ff75144
randomSeed(READ_PERI_REG(DR_REG_RNG_BASE));
#else
// TODO find better seed
randomSeed(millis());
#endif
_runnning = true;
_server->begin();
DEBUG_WEBSOCKETS("[WS-Server] Server Started.\n");
}
void WebSocketsServer::close(void) {
_runnning = false;
disconnect();
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
_server->close();
#elif (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
_server->end();
#else
// TODO how to close server?
#endif
}
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
/**
* called in arduino loop
*/
void WebSocketsServer::loop(void) {
if(_runnning) {
handleNewClients();
handleClientData();
}
}
#endif
/**
* set callback function
* @param cbEvent WebSocketServerEvent
*/
void WebSocketsServer::onEvent(WebSocketServerEvent cbEvent) {
_cbEvent = cbEvent;
}
/*
* Sets the custom http header validator function
* @param httpHeaderValidationFunc WebSocketServerHttpHeaderValFunc ///< pointer to the custom http header validation function
* @param mandatoryHttpHeaders[] const char* ///< the array of named http headers considered to be mandatory / must be present in order for websocket upgrade to succeed
* @param mandatoryHttpHeaderCount size_t ///< the number of items in the mandatoryHttpHeaders array
*/
void WebSocketsServer::onValidateHttpHeader(
WebSocketServerHttpHeaderValFunc validationFunc,
const char* mandatoryHttpHeaders[],
size_t mandatoryHttpHeaderCount)
{
_httpHeaderValidationFunc = validationFunc;
if (_mandatoryHttpHeaders)
delete[] _mandatoryHttpHeaders;
_mandatoryHttpHeaderCount = mandatoryHttpHeaderCount;
_mandatoryHttpHeaders = new String[_mandatoryHttpHeaderCount];
for (size_t i = 0; i < _mandatoryHttpHeaderCount; i++) {
_mandatoryHttpHeaders[i] = mandatoryHttpHeaders[i];
}
}
/*
* send text data to client
* @param num uint8_t client id
* @param payload uint8_t *
* @param length size_t
* @param headerToPayload bool (see sendFrame for more details)
* @return true if ok
*/
bool WebSocketsServer::sendTXT(uint8_t num, uint8_t * payload, size_t length, bool headerToPayload) {
if(num >= WEBSOCKETS_SERVER_CLIENT_MAX) {
return false;
}
if(length == 0) {
length = strlen((const char *) payload);
}
WSclient_t * client = &_clients[num];
if(clientIsConnected(client)) {
return sendFrame(client, WSop_text, payload, length, false, true, headerToPayload);
}
return false;
}
bool WebSocketsServer::sendTXT(uint8_t num, const uint8_t * payload, size_t length) {
return sendTXT(num, (uint8_t *) payload, length);
}
bool WebSocketsServer::sendTXT(uint8_t num, char * payload, size_t length, bool headerToPayload) {
return sendTXT(num, (uint8_t *) payload, length, headerToPayload);
}
bool WebSocketsServer::sendTXT(uint8_t num, const char * payload, size_t length) {
return sendTXT(num, (uint8_t *) payload, length);
}
bool WebSocketsServer::sendTXT(uint8_t num, String & payload) {
return sendTXT(num, (uint8_t *) payload.c_str(), payload.length());
}
/**
* send text data to client all
* @param payload uint8_t *
* @param length size_t
* @param headerToPayload bool (see sendFrame for more details)
* @return true if ok
*/
bool WebSocketsServer::broadcastTXT(uint8_t * payload, size_t length, bool headerToPayload) {
WSclient_t * client;
bool ret = true;
if(length == 0) {
length = strlen((const char *) payload);
}
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
if(clientIsConnected(client)) {
if(!sendFrame(client, WSop_text, payload, length, false, true, headerToPayload)) {
ret = false;
}
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
}
return ret;
}
bool WebSocketsServer::broadcastTXT(const uint8_t * payload, size_t length) {
return broadcastTXT((uint8_t *) payload, length);
}
bool WebSocketsServer::broadcastTXT(char * payload, size_t length, bool headerToPayload) {
return broadcastTXT((uint8_t *) payload, length, headerToPayload);
}
bool WebSocketsServer::broadcastTXT(const char * payload, size_t length) {
return broadcastTXT((uint8_t *) payload, length);
}
bool WebSocketsServer::broadcastTXT(String & payload) {
return broadcastTXT((uint8_t *) payload.c_str(), payload.length());
}
/**
* send binary data to client
* @param num uint8_t client id
* @param payload uint8_t *
* @param length size_t
* @param headerToPayload bool (see sendFrame for more details)
* @return true if ok
*/
bool WebSocketsServer::sendBIN(uint8_t num, uint8_t * payload, size_t length, bool headerToPayload) {
if(num >= WEBSOCKETS_SERVER_CLIENT_MAX) {
return false;
}
WSclient_t * client = &_clients[num];
if(clientIsConnected(client)) {
return sendFrame(client, WSop_binary, payload, length, false, true, headerToPayload);
}
return false;
}
bool WebSocketsServer::sendBIN(uint8_t num, const uint8_t * payload, size_t length) {
return sendBIN(num, (uint8_t *) payload, length);
}
/**
* send binary data to client all
* @param payload uint8_t *
* @param length size_t
* @param headerToPayload bool (see sendFrame for more details)
* @return true if ok
*/
bool WebSocketsServer::broadcastBIN(uint8_t * payload, size_t length, bool headerToPayload) {
WSclient_t * client;
bool ret = true;
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
if(clientIsConnected(client)) {
if(!sendFrame(client, WSop_binary, payload, length, false, true, headerToPayload)) {
ret = false;
}
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
}
return ret;
}
bool WebSocketsServer::broadcastBIN(const uint8_t * payload, size_t length) {
return broadcastBIN((uint8_t *) payload, length);
}
/**
* sends a WS ping to Client
* @param num uint8_t client id
* @param payload uint8_t *
* @param length size_t
* @return true if ping is send out
*/
bool WebSocketsServer::sendPing(uint8_t num, uint8_t * payload, size_t length) {
if(num >= WEBSOCKETS_SERVER_CLIENT_MAX) {
return false;
}
WSclient_t * client = &_clients[num];
if(clientIsConnected(client)) {
return sendFrame(client, WSop_ping, payload, length);
}
return false;
}
bool WebSocketsServer::sendPing(uint8_t num, String & payload) {
return sendPing(num, (uint8_t *) payload.c_str(), payload.length());
}
/**
* sends a WS ping to all Client
* @param payload uint8_t *
* @param length size_t
* @return true if ping is send out
*/
bool WebSocketsServer::broadcastPing(uint8_t * payload, size_t length) {
WSclient_t * client;
bool ret = true;
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
if(clientIsConnected(client)) {
if(!sendFrame(client, WSop_ping, payload, length)) {
ret = false;
}
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
}
return ret;
}
bool WebSocketsServer::broadcastPing(String & payload) {
return broadcastPing((uint8_t *) payload.c_str(), payload.length());
}
/**
* disconnect all clients
*/
void WebSocketsServer::disconnect(void) {
WSclient_t * client;
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
if(clientIsConnected(client)) {
WebSockets::clientDisconnect(client, 1000);
}
}
}
/**
* disconnect one client
* @param num uint8_t client id
*/
void WebSocketsServer::disconnect(uint8_t num) {
if(num >= WEBSOCKETS_SERVER_CLIENT_MAX) {
return;
}
WSclient_t * client = &_clients[num];
if(clientIsConnected(client)) {
WebSockets::clientDisconnect(client, 1000);
}
}
/*
* set the Authorization for the http request
* @param user const char *
* @param password const char *
*/
void WebSocketsServer::setAuthorization(const char * user, const char * password) {
if(user && password) {
String auth = user;
auth += ":";
auth += password;
_base64Authorization = base64_encode((uint8_t *)auth.c_str(), auth.length());
}
}
/**
* set the Authorizatio for the http request
* @param auth const char * base64
*/
void WebSocketsServer::setAuthorization(const char * auth) {
if(auth) {
_base64Authorization = auth;
}
}
/**
* count the connected clients (optional ping them)
* @param ping bool ping the connected clients
*/
int WebSocketsServer::connectedClients(bool ping) {
WSclient_t * client;
int count = 0;
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
if(client->status == WSC_CONNECTED) {
if(ping != true || sendPing(i)) {
count++;
}
}
}
return count;
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
/**
* get an IP for a client
* @param num uint8_t client id
* @return IPAddress
*/
IPAddress WebSocketsServer::remoteIP(uint8_t num) {
if(num < WEBSOCKETS_SERVER_CLIENT_MAX) {
WSclient_t * client = &_clients[num];
if(clientIsConnected(client)) {
return client->tcp->remoteIP();
}
}
return IPAddress();
}
#endif
//#################################################################################
//#################################################################################
//#################################################################################
/**
* handle new client connection
* @param client
*/
bool WebSocketsServer::newClient(WEBSOCKETS_NETWORK_CLASS * TCPclient) {
WSclient_t * client;
// search free list entry for client
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
// state is not connected or tcp connection is lost
if(!clientIsConnected(client)) {
client->tcp = TCPclient;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
client->isSSL = false;
client->tcp->setNoDelay(true);
#endif
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
// set Timeout for readBytesUntil and readStringUntil
client->tcp->setTimeout(WEBSOCKETS_TCP_TIMEOUT);
#endif
client->status = WSC_HEADER;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
IPAddress ip = client->tcp->remoteIP();
DEBUG_WEBSOCKETS("[WS-Server][%d] new client from %d.%d.%d.%d\n", client->num, ip[0], ip[1], ip[2], ip[3]);
#else
DEBUG_WEBSOCKETS("[WS-Server][%d] new client\n", client->num);
#endif
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->tcp->onDisconnect(std::bind([](WebSocketsServer * server, AsyncTCPbuffer * obj, WSclient_t * client) -> bool {
DEBUG_WEBSOCKETS("[WS-Server][%d] Disconnect client\n", client->num);
AsyncTCPbuffer ** sl = &server->_clients[client->num].tcp;
if(*sl == obj) {
client->status = WSC_NOT_CONNECTED;
*sl = NULL;
}
return true;
}, this, std::placeholders::_1, client));
client->tcp->readStringUntil('\n', &(client->cHttpLine), std::bind(&WebSocketsServer::handleHeader, this, client, &(client->cHttpLine)));
#endif
return true;
break;
}
}
return false;
}
/**
*
* @param client WSclient_t * ptr to the client struct
* @param opcode WSopcode_t
* @param payload uint8_t *
* @param length size_t
*/
void WebSocketsServer::messageReceived(WSclient_t * client, WSopcode_t opcode, uint8_t * payload, size_t length, bool fin) {
WStype_t type = WStype_ERROR;
switch(opcode) {
case WSop_text:
type = fin ? WStype_TEXT : WStype_FRAGMENT_TEXT_START;
break;
case WSop_binary:
type = fin ? WStype_BIN : WStype_FRAGMENT_BIN_START;
break;
case WSop_continuation:
type = fin ? WStype_FRAGMENT_FIN : WStype_FRAGMENT;
break;
case WSop_close:
case WSop_ping:
case WSop_pong:
default:
break;
}
runCbEvent(client->num, type, payload, length);
}
/**
* Disconnect an client
* @param client WSclient_t * ptr to the client struct
*/
void WebSocketsServer::clientDisconnect(WSclient_t * client) {
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
if(client->isSSL && client->ssl) {
if(client->ssl->connected()) {
client->ssl->flush();
client->ssl->stop();
}
delete client->ssl;
client->ssl = NULL;
client->tcp = NULL;
}
#endif
if(client->tcp) {
if(client->tcp->connected()) {
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
client->tcp->flush();
#endif
client->tcp->stop();
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->status = WSC_NOT_CONNECTED;
#else
delete client->tcp;
#endif
client->tcp = NULL;
}
client->cUrl = "";
client->cKey = "";
client->cProtocol = "";
client->cVersion = 0;
client->cIsUpgrade = false;
client->cIsWebsocket = false;
client->cWsRXsize = 0;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->cHttpLine = "";
#endif
client->status = WSC_NOT_CONNECTED;
DEBUG_WEBSOCKETS("[WS-Server][%d] client disconnected.\n", client->num);
runCbEvent(client->num, WStype_DISCONNECTED, NULL, 0);
}
/**
* get client state
* @param client WSclient_t * ptr to the client struct
* @return true = connected
*/
bool WebSocketsServer::clientIsConnected(WSclient_t * client) {
if(!client->tcp) {
return false;
}
if(client->tcp->connected()) {
if(client->status != WSC_NOT_CONNECTED) {
return true;
}
} else {
// client lost
if(client->status != WSC_NOT_CONNECTED) {
DEBUG_WEBSOCKETS("[WS-Server][%d] client connection lost.\n", client->num);
// do cleanup
clientDisconnect(client);
}
}
if(client->tcp) {
// do cleanup
DEBUG_WEBSOCKETS("[WS-Server][%d] client list cleanup.\n", client->num);
clientDisconnect(client);
}
return false;
}
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
/**
* Handle incoming Connection Request
*/
void WebSocketsServer::handleNewClients(void) {
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
while(_server->hasClient()) {
#endif
bool ok = false;
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
// store new connection
WEBSOCKETS_NETWORK_CLASS * tcpClient = new WEBSOCKETS_NETWORK_CLASS(_server->available());
#else
WEBSOCKETS_NETWORK_CLASS * tcpClient = new WEBSOCKETS_NETWORK_CLASS(_server->available());
#endif
if(!tcpClient) {
DEBUG_WEBSOCKETS("[WS-Client] creating Network class failed!");
return;
}
ok = newClient(tcpClient);
if(!ok) {
// no free space to handle client
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
IPAddress ip = tcpClient->remoteIP();
DEBUG_WEBSOCKETS("[WS-Server] no free space new client from %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
#else
DEBUG_WEBSOCKETS("[WS-Server] no free space new client\n");
#endif
tcpClient->stop();
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
delay(0);
}
#endif
}
/**
* Handel incomming data from Client
*/
void WebSocketsServer::handleClientData(void) {
WSclient_t * client;
for(uint8_t i = 0; i < WEBSOCKETS_SERVER_CLIENT_MAX; i++) {
client = &_clients[i];
if(clientIsConnected(client)) {
int len = client->tcp->available();
if(len > 0) {
//DEBUG_WEBSOCKETS("[WS-Server][%d][handleClientData] len: %d\n", client->num, len);
switch(client->status) {
case WSC_HEADER:
{
String headerLine = client->tcp->readStringUntil('\n');
handleHeader(client, &headerLine);
}
break;
case WSC_CONNECTED:
WebSockets::handleWebsocket(client);
break;
default:
WebSockets::clientDisconnect(client, 1002);
break;
}
}
}
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266)
delay(0);
#endif
}
}
#endif
/*
* returns an indicator whether the given named header exists in the configured _mandatoryHttpHeaders collection
* @param headerName String ///< the name of the header being checked
*/
bool WebSocketsServer::hasMandatoryHeader(String headerName) {
for (size_t i = 0; i < _mandatoryHttpHeaderCount; i++) {
if (_mandatoryHttpHeaders[i].equalsIgnoreCase(headerName))
return true;
}
return false;
}
/**
* handles http header reading for WebSocket upgrade
* @param client WSclient_t * ///< pointer to the client struct
* @param headerLine String ///< the header being read / processed
*/
void WebSocketsServer::handleHeader(WSclient_t * client, String * headerLine) {
static const char * NEW_LINE = "\r\n";
headerLine->trim(); // remove \r
if(headerLine->length() > 0) {
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] RX: %s\n", client->num, headerLine->c_str());
// websocket requests always start with GET see rfc6455
if(headerLine->startsWith("GET ")) {
// cut URL out
client->cUrl = headerLine->substring(4, headerLine->indexOf(' ', 4));
//reset non-websocket http header validation state for this client
client->cHttpHeadersValid = true;
client->cMandatoryHeadersCount = 0;
} else if(headerLine->indexOf(':')) {
String headerName = headerLine->substring(0, headerLine->indexOf(':'));
String headerValue = headerLine->substring(headerLine->indexOf(':') + 1);
// remove space in the beginning (RFC2616)
if(headerValue[0] == ' ') {
headerValue.remove(0, 1);
}
if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Connection"))) {
headerValue.toLowerCase();
if(headerValue.indexOf(WEBSOCKETS_STRING("upgrade")) >= 0) {
client->cIsUpgrade = true;
}
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Upgrade"))) {
if(headerValue.equalsIgnoreCase(WEBSOCKETS_STRING("websocket"))) {
client->cIsWebsocket = true;
}
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Version"))) {
client->cVersion = headerValue.toInt();
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Key"))) {
client->cKey = headerValue;
client->cKey.trim(); // see rfc6455
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Protocol"))) {
client->cProtocol = headerValue;
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Sec-WebSocket-Extensions"))) {
client->cExtensions = headerValue;
} else if(headerName.equalsIgnoreCase(WEBSOCKETS_STRING("Authorization"))) {
client->base64Authorization = headerValue;
} else {
client->cHttpHeadersValid &= execHttpHeaderValidation(headerName, headerValue);
if(_mandatoryHttpHeaderCount > 0 && hasMandatoryHeader(headerName)) {
client->cMandatoryHeadersCount++;
}
}
} else {
DEBUG_WEBSOCKETS("[WS-Client][handleHeader] Header error (%s)\n", headerLine->c_str());
}
(*headerLine) = "";
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC)
client->tcp->readStringUntil('\n', &(client->cHttpLine), std::bind(&WebSocketsServer::handleHeader, this, client, &(client->cHttpLine)));
#endif
} else {
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] Header read fin.\n", client->num);
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cURL: %s\n", client->num, client->cUrl.c_str());
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cIsUpgrade: %d\n", client->num, client->cIsUpgrade);
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cIsWebsocket: %d\n", client->num, client->cIsWebsocket);
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cKey: %s\n", client->num, client->cKey.c_str());
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cProtocol: %s\n", client->num, client->cProtocol.c_str());
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cExtensions: %s\n", client->num, client->cExtensions.c_str());
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cVersion: %d\n", client->num, client->cVersion);
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - base64Authorization: %s\n", client->num, client->base64Authorization.c_str());
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cHttpHeadersValid: %d\n", client->num, client->cHttpHeadersValid);
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - cMandatoryHeadersCount: %d\n", client->num, client->cMandatoryHeadersCount);
bool ok = (client->cIsUpgrade && client->cIsWebsocket);
if(ok) {
if(client->cUrl.length() == 0) {
ok = false;
}
if(client->cKey.length() == 0) {
ok = false;
}
if(client->cVersion != 13) {
ok = false;
}
if(!client->cHttpHeadersValid) {
ok = false;
}
if (client->cMandatoryHeadersCount != _mandatoryHttpHeaderCount) {
ok = false;
}
}
if(_base64Authorization.length() > 0) {
String auth = WEBSOCKETS_STRING("Basic ");
auth += _base64Authorization;
if(auth != client->base64Authorization) {
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] HTTP Authorization failed!\n", client->num);
handleAuthorizationFailed(client);
return;
}
}
if(ok) {
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] Websocket connection incoming.\n", client->num);
// generate Sec-WebSocket-Accept key
String sKey = acceptKey(client->cKey);
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] - sKey: %s\n", client->num, sKey.c_str());
client->status = WSC_CONNECTED;
String handshake = WEBSOCKETS_STRING("HTTP/1.1 101 Switching Protocols\r\n"
"Server: arduino-WebSocketsServer\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Version: 13\r\n"
"Sec-WebSocket-Accept: ");
handshake += sKey + NEW_LINE;
if(_origin.length() > 0) {
handshake += WEBSOCKETS_STRING("Access-Control-Allow-Origin: ");
handshake +=_origin + NEW_LINE;
}
if(client->cProtocol.length() > 0) {
handshake += WEBSOCKETS_STRING("Sec-WebSocket-Protocol: ");
handshake +=_protocol + NEW_LINE;
}
// header end
handshake += NEW_LINE;
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] handshake %s", client->num, (uint8_t*)handshake.c_str());
write(client, (uint8_t*)handshake.c_str(), handshake.length());
headerDone(client);
// send ping
WebSockets::sendFrame(client, WSop_ping);
runCbEvent(client->num, WStype_CONNECTED, (uint8_t *) client->cUrl.c_str(), client->cUrl.length());
} else {
handleNonWebsocketConnection(client);
}
}
}

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/**
* @file WebSocketsServer.h
* @date 20.05.2015
* @author Markus Sattler
*
* Copyright (c) 2015 Markus Sattler. All rights reserved.
* This file is part of the WebSockets for Arduino.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef WEBSOCKETSSERVER_H_
#define WEBSOCKETSSERVER_H_
#include "WebSockets.h"
#ifndef WEBSOCKETS_SERVER_CLIENT_MAX
#define WEBSOCKETS_SERVER_CLIENT_MAX (5)
#endif
class WebSocketsServer: protected WebSockets {
public:
#ifdef __AVR__
typedef void (*WebSocketServerEvent)(uint8_t num, WStype_t type, uint8_t * payload, size_t length);
typedef bool (*WebSocketServerHttpHeaderValFunc)(String headerName, String headerValue);
#else
typedef std::function<void (uint8_t num, WStype_t type, uint8_t * payload, size_t length)> WebSocketServerEvent;
typedef std::function<bool (String headerName, String headerValue)> WebSocketServerHttpHeaderValFunc;
#endif
WebSocketsServer(uint16_t port, String origin = "", String protocol = "arduino");
virtual ~WebSocketsServer(void);
void begin(void);
void close(void);
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
void loop(void);
#else
// Async interface not need a loop call
void loop(void) __attribute__ ((deprecated)) {}
#endif
void onEvent(WebSocketServerEvent cbEvent);
void onValidateHttpHeader(
WebSocketServerHttpHeaderValFunc validationFunc,
const char* mandatoryHttpHeaders[],
size_t mandatoryHttpHeaderCount);
bool sendTXT(uint8_t num, uint8_t * payload, size_t length = 0, bool headerToPayload = false);
bool sendTXT(uint8_t num, const uint8_t * payload, size_t length = 0);
bool sendTXT(uint8_t num, char * payload, size_t length = 0, bool headerToPayload = false);
bool sendTXT(uint8_t num, const char * payload, size_t length = 0);
bool sendTXT(uint8_t num, String & payload);
bool broadcastTXT(uint8_t * payload, size_t length = 0, bool headerToPayload = false);
bool broadcastTXT(const uint8_t * payload, size_t length = 0);
bool broadcastTXT(char * payload, size_t length = 0, bool headerToPayload = false);
bool broadcastTXT(const char * payload, size_t length = 0);
bool broadcastTXT(String & payload);
bool sendBIN(uint8_t num, uint8_t * payload, size_t length, bool headerToPayload = false);
bool sendBIN(uint8_t num, const uint8_t * payload, size_t length);
bool broadcastBIN(uint8_t * payload, size_t length, bool headerToPayload = false);
bool broadcastBIN(const uint8_t * payload, size_t length);
bool sendPing(uint8_t num, uint8_t * payload = NULL, size_t length = 0);
bool sendPing(uint8_t num, String & payload);
bool broadcastPing(uint8_t * payload = NULL, size_t length = 0);
bool broadcastPing(String & payload);
void disconnect(void);
void disconnect(uint8_t num);
void setAuthorization(const char * user, const char * password);
void setAuthorization(const char * auth);
int connectedClients(bool ping = false);
#if (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP8266_ASYNC) || (WEBSOCKETS_NETWORK_TYPE == NETWORK_ESP32)
IPAddress remoteIP(uint8_t num);
#endif
protected:
uint16_t _port;
String _origin;
String _protocol;
String _base64Authorization; ///< Base64 encoded Auth request
String * _mandatoryHttpHeaders;
size_t _mandatoryHttpHeaderCount;
WEBSOCKETS_NETWORK_SERVER_CLASS * _server;
WSclient_t _clients[WEBSOCKETS_SERVER_CLIENT_MAX];
WebSocketServerEvent _cbEvent;
WebSocketServerHttpHeaderValFunc _httpHeaderValidationFunc;
bool _runnning;
bool newClient(WEBSOCKETS_NETWORK_CLASS * TCPclient);
void messageReceived(WSclient_t * client, WSopcode_t opcode, uint8_t * payload, size_t length, bool fin);
void clientDisconnect(WSclient_t * client);
bool clientIsConnected(WSclient_t * client);
#if (WEBSOCKETS_NETWORK_TYPE != NETWORK_ESP8266_ASYNC)
void handleNewClients(void);
void handleClientData(void);
#endif
void handleHeader(WSclient_t * client, String * headerLine);
/**
* called if a non Websocket connection is coming in.
* Note: can be override
* @param client WSclient_t * ptr to the client struct
*/
virtual void handleNonWebsocketConnection(WSclient_t * client) {
DEBUG_WEBSOCKETS("[WS-Server][%d][handleHeader] no Websocket connection close.\n", client->num);
client->tcp->write("HTTP/1.1 400 Bad Request\r\n"
"Server: arduino-WebSocket-Server\r\n"
"Content-Type: text/plain\r\n"
"Content-Length: 32\r\n"
"Connection: close\r\n"
"Sec-WebSocket-Version: 13\r\n"
"\r\n"
"This is a Websocket server only!");
clientDisconnect(client);
}
/**
* called if a non Authorization connection is coming in.
* Note: can be override
* @param client WSclient_t * ptr to the client struct
*/
virtual void handleAuthorizationFailed(WSclient_t *client) {
client->tcp->write("HTTP/1.1 401 Unauthorized\r\n"
"Server: arduino-WebSocket-Server\r\n"
"Content-Type: text/plain\r\n"
"Content-Length: 45\r\n"
"Connection: close\r\n"
"Sec-WebSocket-Version: 13\r\n"
"WWW-Authenticate: Basic realm=\"WebSocket Server\""
"\r\n"
"This Websocket server requires Authorization!");
clientDisconnect(client);
}
/**
* called for sending a Event to the app
* @param num uint8_t
* @param type WStype_t
* @param payload uint8_t *
* @param length size_t
*/
virtual void runCbEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
if(_cbEvent) {
_cbEvent(num, type, payload, length);
}
}
/*
* Called at client socket connect handshake negotiation time for each http header that is not
* a websocket specific http header (not Connection, Upgrade, Sec-WebSocket-*)
* If the custom httpHeaderValidationFunc returns false for any headerName / headerValue passed, the
* socket negotiation is considered invalid and the upgrade to websockets request is denied / rejected
* This mechanism can be used to enable custom authentication schemes e.g. test the value
* of a session cookie to determine if a user is logged on / authenticated
*/
virtual bool execHttpHeaderValidation(String headerName, String headerValue) {
if(_httpHeaderValidationFunc) {
//return the value of the custom http header validation function
return _httpHeaderValidationFunc(headerName, headerValue);
}
//no custom http header validation so just assume all is good
return true;
}
private:
/*
* returns an indicator whether the given named header exists in the configured _mandatoryHttpHeaders collection
* @param headerName String ///< the name of the header being checked
*/
bool hasMandatoryHeader(String headerName);
};
#endif /* WEBSOCKETSSERVER_H_ */

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libb64: Base64 Encoding/Decoding Routines
======================================
Authors:
-------
Chris Venter chris.venter@gmail.com http://rocketpod.blogspot.com

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Copyright-Only Dedication (based on United States law)
or Public Domain Certification
The person or persons who have associated work with this document (the
"Dedicator" or "Certifier") hereby either (a) certifies that, to the best of
his knowledge, the work of authorship identified is in the public domain of the
country from which the work is published, or (b) hereby dedicates whatever
copyright the dedicators holds in the work of authorship identified below (the
"Work") to the public domain. A certifier, moreover, dedicates any copyright
interest he may have in the associated work, and for these purposes, is
described as a "dedicator" below.
A certifier has taken reasonable steps to verify the copyright status of this
work. Certifier recognizes that his good faith efforts may not shield him from
liability if in fact the work certified is not in the public domain.
Dedicator makes this dedication for the benefit of the public at large and to
the detriment of the Dedicator's heirs and successors. Dedicator intends this
dedication to be an overt act of relinquishment in perpetuity of all present
and future rights under copyright law, whether vested or contingent, in the
Work. Dedicator understands that such relinquishment of all rights includes
the relinquishment of all rights to enforce (by lawsuit or otherwise) those
copyrights in the Work.
Dedicator recognizes that, once placed in the public domain, the Work may be
freely reproduced, distributed, transmitted, used, modified, built upon, or
otherwise exploited by anyone for any purpose, commercial or non-commercial,
and in any way, including by methods that have not yet been invented or
conceived.

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/*
cdecoder.c - c source to a base64 decoding algorithm implementation
This is part of the libb64 project, and has been placed in the public domain.
For details, see http://sourceforge.net/projects/libb64
*/
#ifdef ESP8266
#include <core_esp8266_features.h>
#endif
#if defined(ESP32)
#define CORE_HAS_LIBB64
#endif
#ifndef CORE_HAS_LIBB64
#include "cdecode_inc.h"
int base64_decode_value(char value_in)
{
static const char decoding[] = {62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-2,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51};
static const char decoding_size = sizeof(decoding);
value_in -= 43;
if (value_in < 0 || value_in > decoding_size) return -1;
return decoding[(int)value_in];
}
void base64_init_decodestate(base64_decodestate* state_in)
{
state_in->step = step_a;
state_in->plainchar = 0;
}
int base64_decode_block(const char* code_in, const int length_in, char* plaintext_out, base64_decodestate* state_in)
{
const char* codechar = code_in;
char* plainchar = plaintext_out;
char fragment;
*plainchar = state_in->plainchar;
switch (state_in->step)
{
while (1)
{
case step_a:
do {
if (codechar == code_in+length_in)
{
state_in->step = step_a;
state_in->plainchar = *plainchar;
return plainchar - plaintext_out;
}
fragment = (char)base64_decode_value(*codechar++);
} while (fragment < 0);
*plainchar = (fragment & 0x03f) << 2;
case step_b:
do {
if (codechar == code_in+length_in)
{
state_in->step = step_b;
state_in->plainchar = *plainchar;
return plainchar - plaintext_out;
}
fragment = (char)base64_decode_value(*codechar++);
} while (fragment < 0);
*plainchar++ |= (fragment & 0x030) >> 4;
*plainchar = (fragment & 0x00f) << 4;
case step_c:
do {
if (codechar == code_in+length_in)
{
state_in->step = step_c;
state_in->plainchar = *plainchar;
return plainchar - plaintext_out;
}
fragment = (char)base64_decode_value(*codechar++);
} while (fragment < 0);
*plainchar++ |= (fragment & 0x03c) >> 2;
*plainchar = (fragment & 0x003) << 6;
case step_d:
do {
if (codechar == code_in+length_in)
{
state_in->step = step_d;
state_in->plainchar = *plainchar;
return plainchar - plaintext_out;
}
fragment = (char)base64_decode_value(*codechar++);
} while (fragment < 0);
*plainchar++ |= (fragment & 0x03f);
}
}
/* control should not reach here */
return plainchar - plaintext_out;
}
#endif

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/*
cdecode.h - c header for a base64 decoding algorithm
This is part of the libb64 project, and has been placed in the public domain.
For details, see http://sourceforge.net/projects/libb64
*/
#ifndef BASE64_CDECODE_H
#define BASE64_CDECODE_H
typedef enum
{
step_a, step_b, step_c, step_d
} base64_decodestep;
typedef struct
{
base64_decodestep step;
char plainchar;
} base64_decodestate;
void base64_init_decodestate(base64_decodestate* state_in);
int base64_decode_value(char value_in);
int base64_decode_block(const char* code_in, const int length_in, char* plaintext_out, base64_decodestate* state_in);
#endif /* BASE64_CDECODE_H */

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/*
cencoder.c - c source to a base64 encoding algorithm implementation
This is part of the libb64 project, and has been placed in the public domain.
For details, see http://sourceforge.net/projects/libb64
*/
#ifdef ESP8266
#include <core_esp8266_features.h>
#endif
#if defined(ESP32)
#define CORE_HAS_LIBB64
#endif
#ifndef CORE_HAS_LIBB64
#include "cencode_inc.h"
const int CHARS_PER_LINE = 72;
void base64_init_encodestate(base64_encodestate* state_in)
{
state_in->step = step_A;
state_in->result = 0;
state_in->stepcount = 0;
}
char base64_encode_value(char value_in)
{
static const char* encoding = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
if (value_in > 63) return '=';
return encoding[(int)value_in];
}
int base64_encode_block(const char* plaintext_in, int length_in, char* code_out, base64_encodestate* state_in)
{
const char* plainchar = plaintext_in;
const char* const plaintextend = plaintext_in + length_in;
char* codechar = code_out;
char result;
char fragment;
result = state_in->result;
switch (state_in->step)
{
while (1)
{
case step_A:
if (plainchar == plaintextend)
{
state_in->result = result;
state_in->step = step_A;
return codechar - code_out;
}
fragment = *plainchar++;
result = (fragment & 0x0fc) >> 2;
*codechar++ = base64_encode_value(result);
result = (fragment & 0x003) << 4;
case step_B:
if (plainchar == plaintextend)
{
state_in->result = result;
state_in->step = step_B;
return codechar - code_out;
}
fragment = *plainchar++;
result |= (fragment & 0x0f0) >> 4;
*codechar++ = base64_encode_value(result);
result = (fragment & 0x00f) << 2;
case step_C:
if (plainchar == plaintextend)
{
state_in->result = result;
state_in->step = step_C;
return codechar - code_out;
}
fragment = *plainchar++;
result |= (fragment & 0x0c0) >> 6;
*codechar++ = base64_encode_value(result);
result = (fragment & 0x03f) >> 0;
*codechar++ = base64_encode_value(result);
++(state_in->stepcount);
if (state_in->stepcount == CHARS_PER_LINE/4)
{
*codechar++ = '\n';
state_in->stepcount = 0;
}
}
}
/* control should not reach here */
return codechar - code_out;
}
int base64_encode_blockend(char* code_out, base64_encodestate* state_in)
{
char* codechar = code_out;
switch (state_in->step)
{
case step_B:
*codechar++ = base64_encode_value(state_in->result);
*codechar++ = '=';
*codechar++ = '=';
break;
case step_C:
*codechar++ = base64_encode_value(state_in->result);
*codechar++ = '=';
break;
case step_A:
break;
}
*codechar++ = 0x00;
return codechar - code_out;
}
#endif

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/*
cencode.h - c header for a base64 encoding algorithm
This is part of the libb64 project, and has been placed in the public domain.
For details, see http://sourceforge.net/projects/libb64
*/
#ifndef BASE64_CENCODE_H
#define BASE64_CENCODE_H
typedef enum
{
step_A, step_B, step_C
} base64_encodestep;
typedef struct
{
base64_encodestep step;
char result;
int stepcount;
} base64_encodestate;
void base64_init_encodestate(base64_encodestate* state_in);
char base64_encode_value(char value_in);
int base64_encode_block(const char* plaintext_in, int length_in, char* code_out, base64_encodestate* state_in);
int base64_encode_blockend(char* code_out, base64_encodestate* state_in);
#endif /* BASE64_CENCODE_H */

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/* from valgrind tests */
/* ================ sha1.c ================ */
/*
SHA-1 in C
By Steve Reid <steve@edmweb.com>
100% Public Domain
Test Vectors (from FIPS PUB 180-1)
"abc"
A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
A million repetitions of "a"
34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
*/
/* #define LITTLE_ENDIAN * This should be #define'd already, if true. */
/* #define SHA1HANDSOFF * Copies data before messing with it. */
#if !defined(ESP8266) && !defined(ESP32)
#define SHA1HANDSOFF
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include "libsha1.h"
#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
/* blk0() and blk() perform the initial expand. */
/* I got the idea of expanding during the round function from SSLeay */
#if BYTE_ORDER == LITTLE_ENDIAN
#define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \
|(rol(block->l[i],8)&0x00FF00FF))
#elif BYTE_ORDER == BIG_ENDIAN
#define blk0(i) block->l[i]
#else
#error "Endianness not defined!"
#endif
#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
^block->l[(i+2)&15]^block->l[i&15],1))
/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
/* Hash a single 512-bit block. This is the core of the algorithm. */
void SHA1Transform(uint32_t state[5], const unsigned char buffer[64])
{
uint32_t a, b, c, d, e;
typedef union {
unsigned char c[64];
uint32_t l[16];
} CHAR64LONG16;
#ifdef SHA1HANDSOFF
CHAR64LONG16 block[1]; /* use array to appear as a pointer */
memcpy(block, buffer, 64);
#else
/* The following had better never be used because it causes the
* pointer-to-const buffer to be cast into a pointer to non-const.
* And the result is written through. I threw a "const" in, hoping
* this will cause a diagnostic.
*/
CHAR64LONG16* block = (const CHAR64LONG16*)buffer;
#endif
/* Copy context->state[] to working vars */
a = state[0];
b = state[1];
c = state[2];
d = state[3];
e = state[4];
/* 4 rounds of 20 operations each. Loop unrolled. */
R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
/* Add the working vars back into context.state[] */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
state[4] += e;
/* Wipe variables */
a = b = c = d = e = 0;
#ifdef SHA1HANDSOFF
memset(block, '\0', sizeof(block));
#endif
}
/* SHA1Init - Initialize new context */
void SHA1Init(SHA1_CTX* context)
{
/* SHA1 initialization constants */
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
context->state[4] = 0xC3D2E1F0;
context->count[0] = context->count[1] = 0;
}
/* Run your data through this. */
void SHA1Update(SHA1_CTX* context, const unsigned char* data, uint32_t len)
{
uint32_t i, j;
j = context->count[0];
if ((context->count[0] += len << 3) < j)
context->count[1]++;
context->count[1] += (len>>29);
j = (j >> 3) & 63;
if ((j + len) > 63) {
memcpy(&context->buffer[j], data, (i = 64-j));
SHA1Transform(context->state, context->buffer);
for ( ; i + 63 < len; i += 64) {
SHA1Transform(context->state, &data[i]);
}
j = 0;
}
else i = 0;
memcpy(&context->buffer[j], &data[i], len - i);
}
/* Add padding and return the message digest. */
void SHA1Final(unsigned char digest[20], SHA1_CTX* context)
{
unsigned i;
unsigned char finalcount[8];
unsigned char c;
#if 0 /* untested "improvement" by DHR */
/* Convert context->count to a sequence of bytes
* in finalcount. Second element first, but
* big-endian order within element.
* But we do it all backwards.
*/
unsigned char *fcp = &finalcount[8];
for (i = 0; i < 2; i++)
{
uint32_t t = context->count[i];
int j;
for (j = 0; j < 4; t >>= 8, j++)
*--fcp = (unsigned char) t;
}
#else
for (i = 0; i < 8; i++) {
finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
>> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */
}
#endif
c = 0200;
SHA1Update(context, &c, 1);
while ((context->count[0] & 504) != 448) {
c = 0000;
SHA1Update(context, &c, 1);
}
SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */
for (i = 0; i < 20; i++) {
digest[i] = (unsigned char)
((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
}
/* Wipe variables */
memset(context, '\0', sizeof(*context));
memset(&finalcount, '\0', sizeof(finalcount));
}
/* ================ end of sha1.c ================ */
#endif

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/* ================ sha1.h ================ */
/*
SHA-1 in C
By Steve Reid <steve@edmweb.com>
100% Public Domain
*/
#if !defined(ESP8266) && !defined(ESP32)
typedef struct {
uint32_t state[5];
uint32_t count[2];
unsigned char buffer[64];
} SHA1_CTX;
void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]);
void SHA1Init(SHA1_CTX* context);
void SHA1Update(SHA1_CTX* context, const unsigned char* data, uint32_t len);
void SHA1Final(unsigned char digest[20], SHA1_CTX* context);
#endif

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<html>
<head>
<script>
var connection = new WebSocket('ws://10.11.2.1:81/', ['arduino']);
connection.onopen = function () {
connection.send('Message from Browser to ESP8266 yay its Working!! ' + new Date());
connection.send('ping');
/* setInterval(function() {
connection.send('Time: ' + new Date());
}, 20);
*/
connection.send('Time: ' + new Date());
};
connection.onerror = function (error) {
console.log('WebSocket Error ', error);
};
connection.onmessage = function (e) {
console.log('Server: ', e.data);
connection.send('Time: ' + new Date());
};
function sendRGB() {
var r = parseInt(document.getElementById('r').value).toString(16);
var g = parseInt(document.getElementById('g').value).toString(16);
var b = parseInt(document.getElementById('b').value).toString(16);
if(r.length < 2) { r = '0' + r; }
if(g.length < 2) { g = '0' + g; }
if(b.length < 2) { b = '0' + b; }
var rgb = '#'+r+g+b;
console.log('RGB: ' + rgb);
connection.send(rgb);
}
</script>
</head>
<body>
LED Control:<br/>
<br/>
R: <input id="r" type="range" min="0" max="255" step="1" onchange="sendRGB();" /><br/>
G: <input id="g" type="range" min="0" max="255" step="1" onchange="sendRGB();" /><br/>
B: <input id="b" type="range" min="0" max="255" step="1" onchange="sendRGB();" /><br/>
</body>
</html>

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#!/usr/bin/env node
var WebSocketServer = require('websocket').server;
var http = require('http');
var server = http.createServer(function(request, response) {
console.log((new Date()) + ' Received request for ' + request.url);
response.writeHead(404);
response.end();
});
server.listen(8011, function() {
console.log((new Date()) + ' Server is listening on port 8011');
});
wsServer = new WebSocketServer({
httpServer: server,
// You should not use autoAcceptConnections for production
// applications, as it defeats all standard cross-origin protection
// facilities built into the protocol and the browser. You should
// *always* verify the connection's origin and decide whether or not
// to accept it.
autoAcceptConnections: false
});
function originIsAllowed(origin) {
// put logic here to detect whether the specified origin is allowed.
return true;
}
wsServer.on('request', function(request) {
if (!originIsAllowed(request.origin)) {
// Make sure we only accept requests from an allowed origin
request.reject();
console.log((new Date()) + ' Connection from origin ' + request.origin + ' rejected.');
return;
}
var connection = request.accept('arduino', request.origin);
console.log((new Date()) + ' Connection accepted.');
connection.on('message', function(message) {
if (message.type === 'utf8') {
console.log('Received Message: ' + message.utf8Data);
// connection.sendUTF(message.utf8Data);
}
else if (message.type === 'binary') {
console.log('Received Binary Message of ' + message.binaryData.length + ' bytes');
//connection.sendBytes(message.binaryData);
}
});
connection.on('close', function(reasonCode, description) {
console.log((new Date()) + ' Peer ' + connection.remoteAddress + ' disconnected.');
});
connection.sendUTF("Hallo Client!");
});

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{
"name": "webSocketServer",
"version": "1.0.0",
"description": "WebSocketServer for testing",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"repository": {
"type": "git",
"url": "https://github.com/Links2004/arduinoWebSockets"
},
"keywords": [
"esp8266",
"websocket",
"arduino"
],
"author": "Markus Sattler",
"license": "LGPLv2",
"bugs": {
"url": "https://github.com/Links2004/arduinoWebSockets/issues"
},
"homepage": "https://github.com/Links2004/arduinoWebSockets",
"dependencies": {
"websocket": "^1.0.18"
}
}

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#!/bin/bash
function build_sketches()
{
local arduino=$1
local srcpath=$2
local platform=$3
local sketches=$(find $srcpath -name *.ino)
for sketch in $sketches; do
local sketchdir=$(dirname $sketch)
if [[ -f "$sketchdir/.$platform.skip" ]]; then
echo -e "\n\n ------------ Skipping $sketch ------------ \n\n";
continue
fi
echo -e "\n\n ------------ Building $sketch ------------ \n\n";
$arduino --verify $sketch;
local result=$?
if [ $result -ne 0 ]; then
echo "Build failed ($sketch) build verbose..."
$arduino --verify --verbose --preserve-temp-files $sketch
result=$?
fi
if [ $result -ne 0 ]; then
echo "Build failed ($1) $sketch"
return $result
fi
done
}
function get_core()
{
echo Setup core for $1
cd $HOME/arduino_ide/hardware
if [ "$1" = "esp8266" ] ; then
mkdir esp8266com
cd esp8266com
git clone https://github.com/esp8266/Arduino.git esp8266
cd esp8266/tools
python get.py
fi
if [ "$1" = "esp32" ] ; then
mkdir espressif
cd espressif
git clone https://github.com/espressif/arduino-esp32.git esp32
cd esp32/tools
python get.py
fi
}