You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
563 lines
15 KiB
563 lines
15 KiB
/*
|
|
|
|
WEBSOCKET MODULE
|
|
|
|
Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
|
|
|
|
*/
|
|
|
|
#if WEB_SUPPORT
|
|
|
|
#include <ESPAsyncTCP.h>
|
|
#include <ESPAsyncWebServer.h>
|
|
#include <ArduinoJson.h>
|
|
#include <Ticker.h>
|
|
#include <vector>
|
|
#include "libs/WebSocketIncommingBuffer.h"
|
|
|
|
AsyncWebSocket _ws("/ws");
|
|
Ticker _web_defer;
|
|
|
|
std::vector<ws_on_send_callback_f> _ws_on_send_callbacks;
|
|
std::vector<ws_on_action_callback_f> _ws_on_action_callbacks;
|
|
std::vector<ws_on_receive_callback_f> _ws_on_receive_callbacks;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Private methods
|
|
// -----------------------------------------------------------------------------
|
|
|
|
typedef struct {
|
|
IPAddress ip;
|
|
unsigned long timestamp = 0;
|
|
} ws_ticket_t;
|
|
ws_ticket_t _ticket[WS_BUFFER_SIZE];
|
|
|
|
void _onAuth(AsyncWebServerRequest *request) {
|
|
|
|
webLog(request);
|
|
if (!webAuthenticate(request)) return request->requestAuthentication();
|
|
|
|
IPAddress ip = request->client()->remoteIP();
|
|
unsigned long now = millis();
|
|
unsigned short index;
|
|
for (index = 0; index < WS_BUFFER_SIZE; index++) {
|
|
if (_ticket[index].ip == ip) break;
|
|
if (_ticket[index].timestamp == 0) break;
|
|
if (now - _ticket[index].timestamp > WS_TIMEOUT) break;
|
|
}
|
|
if (index == WS_BUFFER_SIZE) {
|
|
request->send(429);
|
|
} else {
|
|
_ticket[index].ip = ip;
|
|
_ticket[index].timestamp = now;
|
|
request->send(200, "text/plain", "OK");
|
|
}
|
|
|
|
}
|
|
|
|
bool _wsAuth(AsyncWebSocketClient * client) {
|
|
|
|
IPAddress ip = client->remoteIP();
|
|
unsigned long now = millis();
|
|
unsigned short index = 0;
|
|
|
|
for (index = 0; index < WS_BUFFER_SIZE; index++) {
|
|
if ((_ticket[index].ip == ip) && (now - _ticket[index].timestamp < WS_TIMEOUT)) break;
|
|
}
|
|
|
|
if (index == WS_BUFFER_SIZE) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
#if DEBUG_WEB_SUPPORT
|
|
|
|
bool wsDebugSend(const char* message) {
|
|
if (!wsConnected()) return false;
|
|
if (getFreeHeap() < (strlen(message) * 3)) return false;
|
|
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject &root = jsonBuffer.createObject();
|
|
root.set("weblog", message);
|
|
|
|
wsSend(root);
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#if MQTT_SUPPORT
|
|
void _wsMQTTCallback(unsigned int type, const char * topic, const char * payload) {
|
|
if (type == MQTT_CONNECT_EVENT) wsSend_P(PSTR("{\"mqttStatus\": true}"));
|
|
if (type == MQTT_DISCONNECT_EVENT) wsSend_P(PSTR("{\"mqttStatus\": false}"));
|
|
}
|
|
#endif
|
|
|
|
bool _wsStore(String key, String value) {
|
|
|
|
// HTTP port
|
|
if (key == "webPort") {
|
|
if ((value.toInt() == 0) || (value.toInt() == 80)) {
|
|
return delSetting(key);
|
|
}
|
|
}
|
|
|
|
if (value != getSetting(key)) {
|
|
return setSetting(key, value);
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
bool _wsStore(String key, JsonArray& value) {
|
|
|
|
bool changed = false;
|
|
|
|
unsigned char index = 0;
|
|
for (auto element : value) {
|
|
if (_wsStore(key + index, element.as<String>())) changed = true;
|
|
index++;
|
|
}
|
|
|
|
// Delete further values
|
|
for (unsigned char i=index; i<SETTINGS_MAX_LIST_COUNT; i++) {
|
|
if (!delSetting(key, index)) break;
|
|
changed = true;
|
|
}
|
|
|
|
return changed;
|
|
|
|
}
|
|
|
|
void _wsParse(AsyncWebSocketClient *client, uint8_t * payload, size_t length) {
|
|
|
|
//DEBUG_MSG_P(PSTR("[WEBSOCKET] Parsing: %s\n"), length ? (char*) payload : "");
|
|
|
|
// Get client ID
|
|
uint32_t client_id = client->id();
|
|
|
|
// Parse JSON input
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.parseObject((char *) payload);
|
|
if (!root.success()) {
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] Error parsing data\n"));
|
|
wsSend_P(client_id, PSTR("{\"message\": 3}"));
|
|
return;
|
|
}
|
|
|
|
// Check actions -----------------------------------------------------------
|
|
|
|
const char* action = root["action"];
|
|
if (action) {
|
|
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] Requested action: %s\n"), action);
|
|
|
|
if (strcmp(action, "reboot") == 0) {
|
|
deferredReset(100, CUSTOM_RESET_WEB);
|
|
return;
|
|
}
|
|
|
|
if (strcmp(action, "reconnect") == 0) {
|
|
_web_defer.once_ms(100, wifiDisconnect);
|
|
return;
|
|
}
|
|
|
|
if (strcmp(action, "factory_reset") == 0) {
|
|
DEBUG_MSG_P(PSTR("\n\nFACTORY RESET\n\n"));
|
|
resetSettings();
|
|
deferredReset(100, CUSTOM_RESET_FACTORY);
|
|
return;
|
|
}
|
|
|
|
JsonObject& data = root["data"];
|
|
if (data.success()) {
|
|
|
|
// Callbacks
|
|
for (unsigned char i = 0; i < _ws_on_action_callbacks.size(); i++) {
|
|
(_ws_on_action_callbacks[i])(client_id, action, data);
|
|
}
|
|
|
|
// Restore configuration via websockets
|
|
if (strcmp(action, "restore") == 0) {
|
|
if (settingsRestoreJson(data)) {
|
|
wsSend_P(client_id, PSTR("{\"message\": 5}"));
|
|
} else {
|
|
wsSend_P(client_id, PSTR("{\"message\": 4}"));
|
|
}
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
// Check configuration -----------------------------------------------------
|
|
|
|
JsonObject& config = root["config"];
|
|
if (config.success()) {
|
|
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] Parsing configuration data\n"));
|
|
|
|
String adminPass;
|
|
bool save = false;
|
|
#if MQTT_SUPPORT
|
|
bool changedMQTT = false;
|
|
#endif
|
|
|
|
for (auto kv: config) {
|
|
|
|
bool changed = false;
|
|
String key = kv.key;
|
|
JsonVariant& value = kv.value;
|
|
|
|
// Check password
|
|
if (key == "adminPass") {
|
|
if (!value.is<JsonArray&>()) continue;
|
|
JsonArray& values = value.as<JsonArray&>();
|
|
if (values.size() != 2) continue;
|
|
if (values[0].as<String>().equals(values[1].as<String>())) {
|
|
String password = values[0].as<String>();
|
|
if (password.length() > 0) {
|
|
setSetting(key, password);
|
|
save = true;
|
|
wsSend_P(client_id, PSTR("{\"action\": \"reload\"}"));
|
|
}
|
|
} else {
|
|
wsSend_P(client_id, PSTR("{\"message\": 7}"));
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Check if key has to be processed
|
|
bool found = false;
|
|
for (unsigned char i = 0; i < _ws_on_receive_callbacks.size(); i++) {
|
|
found |= (_ws_on_receive_callbacks[i])(key.c_str(), value);
|
|
// TODO: remove this to call all OnReceiveCallbacks with the
|
|
// current key/value
|
|
if (found) break;
|
|
}
|
|
if (!found) {
|
|
delSetting(key);
|
|
continue;
|
|
}
|
|
|
|
// Store values
|
|
if (value.is<JsonArray&>()) {
|
|
if (_wsStore(key, value.as<JsonArray&>())) changed = true;
|
|
} else {
|
|
if (_wsStore(key, value.as<String>())) changed = true;
|
|
}
|
|
|
|
// Update flags if value has changed
|
|
if (changed) {
|
|
save = true;
|
|
#if MQTT_SUPPORT
|
|
if (key.startsWith("mqtt")) changedMQTT = true;
|
|
#endif
|
|
}
|
|
|
|
}
|
|
|
|
// Save settings
|
|
if (save) {
|
|
|
|
// Callbacks
|
|
espurnaReload();
|
|
|
|
// This should got to callback as well
|
|
// but first change management has to be in place
|
|
#if MQTT_SUPPORT
|
|
if (changedMQTT) mqttReset();
|
|
#endif
|
|
|
|
// Persist settings
|
|
saveSettings();
|
|
|
|
wsSend_P(client_id, PSTR("{\"message\": 8}"));
|
|
|
|
} else {
|
|
|
|
wsSend_P(client_id, PSTR("{\"message\": 9}"));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void _wsUpdate(JsonObject& root) {
|
|
root["heap"] = getFreeHeap();
|
|
root["uptime"] = getUptime();
|
|
root["rssi"] = WiFi.RSSI();
|
|
root["loadaverage"] = systemLoadAverage();
|
|
#if ADC_MODE_VALUE == ADC_VCC
|
|
root["vcc"] = ESP.getVcc();
|
|
#endif
|
|
#if NTP_SUPPORT
|
|
if (ntpSynced()) root["now"] = now();
|
|
#endif
|
|
}
|
|
|
|
void _wsDoUpdate(bool reset = false) {
|
|
static unsigned long last = 0;
|
|
if (reset) {
|
|
last = 0;
|
|
return;
|
|
}
|
|
|
|
if (millis() - last > WS_UPDATE_INTERVAL) {
|
|
last = millis();
|
|
wsSend(_wsUpdate);
|
|
}
|
|
}
|
|
|
|
|
|
bool _wsOnReceive(const char * key, JsonVariant& value) {
|
|
if (strncmp(key, "ws", 2) == 0) return true;
|
|
if (strncmp(key, "admin", 5) == 0) return true;
|
|
if (strncmp(key, "hostname", 8) == 0) return true;
|
|
if (strncmp(key, "webPort", 7) == 0) return true;
|
|
return false;
|
|
}
|
|
|
|
void _wsOnStart(JsonObject& root) {
|
|
char chipid[7];
|
|
snprintf_P(chipid, sizeof(chipid), PSTR("%06X"), ESP.getChipId());
|
|
uint8_t * bssid = WiFi.BSSID();
|
|
char bssid_str[20];
|
|
snprintf_P(bssid_str, sizeof(bssid_str),
|
|
PSTR("%02X:%02X:%02X:%02X:%02X:%02X"),
|
|
bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]
|
|
);
|
|
|
|
root["webMode"] = WEB_MODE_NORMAL;
|
|
|
|
root["app_name"] = APP_NAME;
|
|
root["app_version"] = APP_VERSION;
|
|
root["app_build"] = buildTime();
|
|
#if defined(APP_REVISION)
|
|
root["app_revision"] = APP_REVISION;
|
|
#endif
|
|
root["manufacturer"] = MANUFACTURER;
|
|
root["chipid"] = String(chipid);
|
|
root["mac"] = WiFi.macAddress();
|
|
root["bssid"] = String(bssid_str);
|
|
root["channel"] = WiFi.channel();
|
|
root["device"] = DEVICE;
|
|
root["hostname"] = getSetting("hostname");
|
|
root["network"] = getNetwork();
|
|
root["deviceip"] = getIP();
|
|
root["sketch_size"] = ESP.getSketchSize();
|
|
root["free_size"] = ESP.getFreeSketchSpace();
|
|
root["sdk"] = ESP.getSdkVersion();
|
|
root["core"] = getCoreVersion();
|
|
|
|
root["btnDelay"] = getSetting("btnDelay", BUTTON_DBLCLICK_DELAY).toInt();
|
|
root["webPort"] = getSetting("webPort", WEB_PORT).toInt();
|
|
root["wsAuth"] = getSetting("wsAuth", WS_AUTHENTICATION).toInt() == 1;
|
|
#if TERMINAL_SUPPORT
|
|
root["cmdVisible"] = 1;
|
|
#endif
|
|
root["hbMode"] = getSetting("hbMode", HEARTBEAT_MODE).toInt();
|
|
root["hbInterval"] = getSetting("hbInterval", HEARTBEAT_INTERVAL).toInt();
|
|
|
|
_wsDoUpdate(true);
|
|
|
|
}
|
|
|
|
void wsSend(JsonObject& root) {
|
|
size_t len = root.measureLength();
|
|
AsyncWebSocketMessageBuffer* buffer = _ws.makeBuffer(len);
|
|
|
|
if (buffer) {
|
|
root.printTo(reinterpret_cast<char*>(buffer->get()), len + 1);
|
|
_ws.textAll(buffer);
|
|
}
|
|
}
|
|
|
|
void wsSend(uint32_t client_id, JsonObject& root) {
|
|
AsyncWebSocketClient* client = _ws.client(client_id);
|
|
if (client == nullptr) return;
|
|
|
|
size_t len = root.measureLength();
|
|
AsyncWebSocketMessageBuffer* buffer = _ws.makeBuffer(len);
|
|
|
|
if (buffer) {
|
|
root.printTo(reinterpret_cast<char*>(buffer->get()), len + 1);
|
|
client->text(buffer);
|
|
}
|
|
}
|
|
|
|
void _wsStart(uint32_t client_id) {
|
|
#if USE_PASSWORD && WEB_FORCE_PASS_CHANGE
|
|
bool changePassword = getAdminPass().equals(ADMIN_PASS);
|
|
#else
|
|
bool changePassword = false;
|
|
#endif
|
|
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.createObject();
|
|
|
|
if (changePassword) {
|
|
root["webMode"] = WEB_MODE_PASSWORD;
|
|
wsSend(root);
|
|
return;
|
|
}
|
|
|
|
for (auto& callback : _ws_on_send_callbacks) {
|
|
callback(root);
|
|
}
|
|
|
|
wsSend(client_id, root);
|
|
}
|
|
|
|
void _wsEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){
|
|
|
|
if (type == WS_EVT_CONNECT) {
|
|
|
|
client->_tempObject = nullptr;
|
|
|
|
#ifndef NOWSAUTH
|
|
if (!_wsAuth(client)) {
|
|
wsSend_P(client->id(), PSTR("{\"message\": 10}"));
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] Validation check failed\n"));
|
|
client->close();
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
IPAddress ip = client->remoteIP();
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u connected, ip: %d.%d.%d.%d, url: %s\n"), client->id(), ip[0], ip[1], ip[2], ip[3], server->url());
|
|
_wsStart(client->id());
|
|
client->_tempObject = new WebSocketIncommingBuffer(&_wsParse, true);
|
|
wifiReconnectCheck();
|
|
|
|
} else if(type == WS_EVT_DISCONNECT) {
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u disconnected\n"), client->id());
|
|
if (client->_tempObject) {
|
|
delete (WebSocketIncommingBuffer *) client->_tempObject;
|
|
}
|
|
wifiReconnectCheck();
|
|
|
|
} else if(type == WS_EVT_ERROR) {
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u error(%u): %s\n"), client->id(), *((uint16_t*)arg), (char*)data);
|
|
|
|
} else if(type == WS_EVT_PONG) {
|
|
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u pong(%u): %s\n"), client->id(), len, len ? (char*) data : "");
|
|
|
|
} else if(type == WS_EVT_DATA) {
|
|
//DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u data(%u): %s\n"), client->id(), len, len ? (char*) data : "");
|
|
WebSocketIncommingBuffer *buffer = (WebSocketIncommingBuffer *)client->_tempObject;
|
|
AwsFrameInfo * info = (AwsFrameInfo*)arg;
|
|
buffer->data_event(client, info, data, len);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void _wsLoop() {
|
|
if (!wsConnected()) return;
|
|
_wsDoUpdate();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Public API
|
|
// -----------------------------------------------------------------------------
|
|
|
|
bool wsConnected() {
|
|
return (_ws.count() > 0);
|
|
}
|
|
|
|
void wsOnSendRegister(ws_on_send_callback_f callback) {
|
|
_ws_on_send_callbacks.push_back(callback);
|
|
}
|
|
|
|
void wsOnReceiveRegister(ws_on_receive_callback_f callback) {
|
|
_ws_on_receive_callbacks.push_back(callback);
|
|
}
|
|
|
|
void wsOnActionRegister(ws_on_action_callback_f callback) {
|
|
_ws_on_action_callbacks.push_back(callback);
|
|
}
|
|
|
|
void wsSend(ws_on_send_callback_f callback) {
|
|
if (_ws.count() > 0) {
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.createObject();
|
|
callback(root);
|
|
|
|
wsSend(root);
|
|
}
|
|
}
|
|
|
|
void wsSend(const char * payload) {
|
|
if (_ws.count() > 0) {
|
|
_ws.textAll(payload);
|
|
}
|
|
}
|
|
|
|
void wsSend_P(PGM_P payload) {
|
|
if (_ws.count() > 0) {
|
|
char buffer[strlen_P(payload)];
|
|
strcpy_P(buffer, payload);
|
|
_ws.textAll(buffer);
|
|
}
|
|
}
|
|
|
|
void wsSend(uint32_t client_id, ws_on_send_callback_f callback) {
|
|
AsyncWebSocketClient* client = _ws.client(client_id);
|
|
if (client == nullptr) return;
|
|
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.createObject();
|
|
callback(root);
|
|
|
|
size_t len = root.measureLength();
|
|
AsyncWebSocketMessageBuffer* buffer = _ws.makeBuffer(len);
|
|
|
|
if (buffer) {
|
|
root.printTo(reinterpret_cast<char*>(buffer->get()), len + 1);
|
|
client->text(buffer);
|
|
}
|
|
}
|
|
|
|
void wsSend(uint32_t client_id, const char * payload) {
|
|
_ws.text(client_id, payload);
|
|
}
|
|
|
|
void wsSend_P(uint32_t client_id, PGM_P payload) {
|
|
char buffer[strlen_P(payload)];
|
|
strcpy_P(buffer, payload);
|
|
_ws.text(client_id, buffer);
|
|
}
|
|
|
|
void wsSetup() {
|
|
|
|
_ws.onEvent(_wsEvent);
|
|
webServer()->addHandler(&_ws);
|
|
|
|
// CORS
|
|
#ifdef WEB_REMOTE_DOMAIN
|
|
DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", WEB_REMOTE_DOMAIN);
|
|
DefaultHeaders::Instance().addHeader("Access-Control-Allow-Credentials", "true");
|
|
#endif
|
|
|
|
webServer()->on("/auth", HTTP_GET, _onAuth);
|
|
|
|
#if MQTT_SUPPORT
|
|
mqttRegister(_wsMQTTCallback);
|
|
#endif
|
|
|
|
wsOnSendRegister(_wsOnStart);
|
|
wsOnReceiveRegister(_wsOnReceive);
|
|
espurnaRegisterLoop(_wsLoop);
|
|
}
|
|
|
|
#endif // WEB_SUPPORT
|