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Arduinojson6 (#8)

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* Remove redundant AuthSettingsService. Will re-implement properly soon using JWT.

* Support ArduinoJson >= 6.0.0

* Fix ArduinoJson version to 6.x.x
This commit is contained in:
rjwats
2019-04-14 08:52:40 +01:00
committed by GitHub
parent 51c5e51ecd
commit e68b7627f2
17 changed files with 226 additions and 186 deletions
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2
platformio.ini
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@@ -23,6 +23,6 @@ build_flags=
lib_deps =
https://github.com/PaulStoffregen/Time
https://github.com/gmag11/NtpClient
ArduinoJson@>=5.0.0,<6.0.0
ArduinoJson@>=6.0.0,<7.0.0
https://github.com/me-no-dev/ESPAsyncWebServer
https://github.com/me-no-dev/AsyncTCP

4
src/APStatus.cpp
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@@ -5,8 +5,8 @@ APStatus::APStatus(AsyncWebServer *server) : _server(server) {
}
void APStatus::apStatus(AsyncWebServerRequest *request) {
AsyncJsonResponse * response = new AsyncJsonResponse();
JsonObject& root = response->getRoot();
AsyncJsonResponse * response = new AsyncJsonResponse(MAX_AP_STATUS_SIZE);
JsonObject root = response->getRoot();
WiFiMode_t currentWiFiMode = WiFi.getMode();
root["active"] = (currentWiFiMode == WIFI_AP || currentWiFiMode == WIFI_AP_STA);

3
src/APStatus.h
View File

@@ -11,9 +11,10 @@
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>
#include <AsyncJson.h>
#include <AsyncArduinoJson6.h>
#include <IPAddress.h>
#define MAX_AP_STATUS_SIZE 1024
#define AP_STATUS_SERVICE_PATH "/rest/apStatus"
class APStatus {

167
src/AsyncArduinoJson6.h Normal file
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@@ -0,0 +1,167 @@
/**
* A copy of AsyncJson.h from ESPAsyncWebServer, updated for ArduinoJson6.
*/
#ifndef ASYNC_ARDUINO_JSON_6_H
#define ASYNC_ARDUINO_JSON_6_H
#include <ArduinoJson.h>
#include <WebResponseImpl.h>
#include <ESPAsyncWebServer.h>
constexpr const char* JSON_MIMETYPE = "application/json";
class ChunkPrint : public Print {
private:
uint8_t* _destination;
size_t _to_skip;
size_t _to_write;
size_t _pos;
public:
ChunkPrint(uint8_t* destination, size_t from, size_t len)
: _destination(destination), _to_skip(from), _to_write(len), _pos{0} {}
virtual ~ChunkPrint(){}
size_t write(uint8_t c){
if (_to_skip > 0) {
_to_skip--;
return 1;
} else if (_to_write > 0) {
_to_write--;
_destination[_pos++] = c;
return 1;
}
return 0;
}
size_t write(const uint8_t *buffer, size_t size) {
size_t written = 0;
while (written < size && write(buffer[written])) {
written++;
}
return written;
}
};
class AsyncJsonResponse: public AsyncAbstractResponse {
private:
DynamicJsonDocument _jsonDocument;
bool _isValid;
JsonObject _root;
public:
AsyncJsonResponse(int maxSize): _jsonDocument(maxSize), _isValid{false} {
_code = 200;
_contentType = JSON_MIMETYPE;
_root = _jsonDocument.to<JsonObject>();
}
~AsyncJsonResponse() {}
JsonObject getRoot() {
return _root;
}
bool _sourceValid() const {
return _isValid;
}
size_t setLength() {
_contentLength = measureJson(_jsonDocument);
if (_contentLength) { _isValid = true; }
return _contentLength;
}
size_t getSize() {
return _jsonDocument.size();
}
size_t _fillBuffer(uint8_t *data, size_t len){
ChunkPrint dest(data, _sentLength, len);
serializeJson(_jsonDocument, dest);
return len;
}
};
typedef std::function<void(AsyncWebServerRequest *request, JsonVariant json)> ArJsonRequestHandlerFunction;
class AsyncCallbackJsonWebHandler: public AsyncWebHandler {
private:
protected:
const String _uri;
WebRequestMethodComposite _method;
ArJsonRequestHandlerFunction _onRequest;
size_t _contentLength;
size_t _maxContentLength;
public:
AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest) : _uri(uri), _method(HTTP_POST|HTTP_PUT|HTTP_PATCH), _onRequest(onRequest), _maxContentLength(16384) {}
void setMethod(WebRequestMethodComposite method){ _method = method; }
void setMaxContentLength(int maxContentLength){ _maxContentLength = maxContentLength; }
void onRequest(ArJsonRequestHandlerFunction fn){ _onRequest = fn; }
virtual bool canHandle(AsyncWebServerRequest *request) override final{
if(!_onRequest)
return false;
if(!(_method & request->method()))
return false;
if(_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri+"/")))
return false;
if (!request->contentType().equalsIgnoreCase(JSON_MIMETYPE))
return false;
request->addInterestingHeader("ANY");
return true;
}
virtual void handleRequest(AsyncWebServerRequest *request) override final {
if(_onRequest) {
if (request->_tempObject != NULL) {
DynamicJsonDocument _jsonDocument(_maxContentLength);
DeserializationError err = deserializeJson(_jsonDocument, (uint8_t*)(request->_tempObject));
if (err == DeserializationError::Ok) {
_onRequest(request, _jsonDocument.as<JsonVariant>());
return;
}
}
request->send(_contentLength > _maxContentLength ? 413 : 400);
} else {
request->send(500);
}
}
virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final {
}
virtual void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final {
if (_onRequest) {
_contentLength = total;
if (total > 0 && request->_tempObject == NULL && total < _maxContentLength) {
request->_tempObject = malloc(total);
}
if (request->_tempObject != NULL) {
memcpy((uint8_t*)(request->_tempObject) + index, data, len);
}
}
}
virtual bool isRequestHandlerTrivial() override final {return _onRequest ? false : true;}
};
/*
* Listens for a response being destroyed and calls a callback during said distruction.
*
* Used so we can take action after the response has been rendered to the client.
*
* Avoids having to fork ESPAsyncWebServer with a callback feature - still not a nice use of a destructor!
*/
typedef std::function<void()> AsyncJsonCallback;
class AsyncJsonCallbackResponse: public AsyncJsonResponse {
private:
AsyncJsonCallback _callback;
public:
AsyncJsonCallbackResponse(AsyncJsonCallback callback, int maxSize) : AsyncJsonResponse(maxSize), _callback{callback} {}
~AsyncJsonCallbackResponse() {
_callback();
}
};
#endif

31
src/AsyncJsonCallbackResponse.h
View File

@@ -1,31 +0,0 @@
#ifndef _AsyncJsonCallbackResponse_H_
#define _AsyncJsonCallbackResponse_H_
#include <ESPAsyncWebServer.h>
#include <AsyncJson.h>
/*
* Listens for a response being destroyed and calls a callback during said distruction.
* used so we can take action after the response has been rendered to the client.
*
* Avoids having to fork ESPAsyncWebServer with a callback feature, but not nice!
*/
typedef std::function<void()> AsyncJsonCallback;
class AsyncJsonCallbackResponse: public AsyncJsonResponse {
private:
AsyncJsonCallback _callback;
public:
AsyncJsonCallbackResponse(AsyncJsonCallback callback, bool isArray=false) : AsyncJsonResponse(isArray), _callback{callback} {}
~AsyncJsonCallbackResponse() {
_callback();
}
};
#endif // end _AsyncJsonCallbackResponse_H_

10
src/AsyncJsonRequestWebHandler.h
View File

@@ -14,7 +14,7 @@
* Really only of use where there is a determinate payload size.
*/
typedef std::function<void(AsyncWebServerRequest *request, JsonVariant &json)> JsonRequestCallback;
typedef std::function<void(AsyncWebServerRequest *request, JsonDocument &jsonDocument)> JsonRequestCallback;
class AsyncJsonRequestWebHandler: public AsyncWebHandler {
@@ -72,10 +72,10 @@ class AsyncJsonRequestWebHandler: public AsyncWebHandler {
// parse JSON and if possible handle the request
if (request->_tempObject) {
DynamicJsonBuffer jsonBuffer;
JsonVariant json = jsonBuffer.parse((uint8_t *) request->_tempObject);
if (json.success()) {
_onRequest(request, json);
DynamicJsonDocument jsonDocument(_maxContentLength);
DeserializationError error = deserializeJson(jsonDocument, (uint8_t *) request->_tempObject);
if (error == DeserializationError::Ok) {
_onRequest(request, jsonDocument);
}else{
request->send(400);
}

47
src/AuthSettingsService.cpp
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@@ -1,47 +0,0 @@
#include <AuthSettingsService.h>
AuthSettingsService::AuthSettingsService(AsyncWebServer* server, FS* fs) : SettingsService(server, fs, AUTH_SETTINGS_SERVICE_PATH, AUTH_SETTINGS_FILE) {
_server->on(AUTH_LOGOUT_SERVICE_PATH, HTTP_GET, std::bind(&AuthSettingsService::logout, this, std::placeholders::_1));
// configure authentication handler
_authenticationHandler.setUri(AUTH_AUTHENTICATE_SERVICE_PATH);
_authenticationHandler.setMethod(HTTP_POST);
_authenticationHandler.onRequest(std::bind(&AuthSettingsService::authenticate, this, std::placeholders::_1, std::placeholders::_2));
_server->addHandler(&_authenticationHandler);
}
AuthSettingsService::~AuthSettingsService() {}
// checks the session is authenticated, refreshes the sessions timeout if so
bool AuthSettingsService::authenticated(AsyncWebServerRequest *request){
request->send(400);
return false;
}
void AuthSettingsService::readFromJsonObject(JsonObject& root){
_username = root["username"] | AUTH_DEFAULT_USERNAME;
_password = root["password"] | AUTH_DEFAULT_PASSWORD;
_sessionTimeout= root["session_timeout"] | AUTH_DEFAULT_SESSION_TIMEOUT;
}
void AuthSettingsService::writeToJsonObject(JsonObject& root){
root["username"] = _username;
root["password"] = _password;
root["session_timeout"] = _sessionTimeout;
}
void AuthSettingsService::logout(AsyncWebServerRequest *request){
// revoke the current requests session
}
void AuthSettingsService::authenticate(AsyncWebServerRequest *request, JsonVariant &json){
if (json.is<JsonObject>()){
JsonObject& credentials = json.as<JsonObject>();
if (credentials["username"] == _username && credentials["password"] == _password){
// store cookie and write to response
}
request->send(401);
} else{
request->send(400);
}
}

56
src/AuthSettingsService.h
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@@ -1,56 +0,0 @@
#ifndef AuthSettingsService_h
#define AuthSettingsService_h
#include <SettingsService.h>
#define AUTH_DEFAULT_USERNAME "admin"
#define AUTH_DEFAULT_PASSWORD "admin"
#define AUTH_DEFAULT_SESSION_TIMEOUT 3600
#define AUTH_SETTINGS_FILE "/config/authSettings.json"
#define AUTH_SETTINGS_SERVICE_PATH "/rest/authSettings"
#define AUTH_LOGOUT_SERVICE_PATH "/rest/logout"
#define AUTH_AUTHENTICATE_SERVICE_PATH "/rest/authenticate"
// max number of concurrently authenticated clients
#define AUTH_MAX_CLIENTS 10
/*
* TODO: Will protect services with a cookie based authentication service.
*/
class AuthSettingsService : public SettingsService {
public:
AuthSettingsService(AsyncWebServer* server, FS* fs);
~AuthSettingsService();
// checks the session is authenticated,
// refreshes the sessions timeout if found
bool authenticated(AsyncWebServerRequest *request);
protected:
void readFromJsonObject(JsonObject& root);
void writeToJsonObject(JsonObject& root);
private:
// callback handler for authentication endpoint
AsyncJsonRequestWebHandler _authenticationHandler;
// only supporting one username at the moment
String _username;
String _password;
// session timeout in seconds
unsigned int _sessionTimeout;
void logout(AsyncWebServerRequest *request);
void authenticate(AsyncWebServerRequest *request, JsonVariant &json);
};
#endif // end AuthSettingsService_h

4
src/NTPStatus.cpp
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@@ -5,8 +5,8 @@ NTPStatus::NTPStatus(AsyncWebServer *server) : _server(server) {
}
void NTPStatus::ntpStatus(AsyncWebServerRequest *request) {
AsyncJsonResponse * response = new AsyncJsonResponse();
JsonObject& root = response->getRoot();
AsyncJsonResponse * response = new AsyncJsonResponse(MAX_NTP_STATUS_SIZE);
JsonObject root = response->getRoot();
// request time now first, this can sometimes force a sync
time_t timeNow = now();

3
src/NTPStatus.h
View File

@@ -11,10 +11,11 @@
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>
#include <AsyncJson.h>
#include <AsyncArduinoJson6.h>
#include <TimeLib.h>
#include <NtpClientLib.h>
#define MAX_NTP_STATUS_SIZE 1024
#define NTP_STATUS_SERVICE_PATH "/rest/ntpStatus"
class NTPStatus {

20
src/SettingsPersistence.h
View File

@@ -3,10 +3,9 @@
#include <ESPAsyncWebServer.h>
#include <FS.h>
#include <AsyncJson.h>
#include <ArduinoJson.h>
#include <AsyncJsonRequestWebHandler.h>
#include <AsyncJsonCallbackResponse.h>
#include <AsyncArduinoJson6.h>
/**
* At the moment, not expecting settings service to have to deal with large JSON
@@ -30,8 +29,8 @@ protected:
bool writeToFS() {
// create and populate a new json object
DynamicJsonBuffer jsonBuffer;
JsonObject& root = jsonBuffer.createObject();
DynamicJsonDocument jsonDocument = DynamicJsonDocument(MAX_SETTINGS_SIZE);
JsonObject root = jsonDocument.to<JsonObject>();
writeToJsonObject(root);
// serialize it to filesystem
@@ -42,7 +41,7 @@ protected:
return false;
}
root.printTo(configFile);
serializeJson(jsonDocument, configFile);
configFile.close();
return true;
@@ -57,9 +56,10 @@ protected:
// We never expect the config file to get very large, so cap it.
size_t size = configFile.size();
if (size <= MAX_SETTINGS_SIZE) {
DynamicJsonBuffer jsonBuffer;
JsonObject& root = jsonBuffer.parseObject(configFile);
if (root.success()) {
DynamicJsonDocument jsonDocument = DynamicJsonDocument(MAX_SETTINGS_SIZE);
DeserializationError error = deserializeJson(jsonDocument, configFile);
if (error == DeserializationError::Ok && jsonDocument.is<JsonObject>()){
JsonObject root = jsonDocument.as<JsonObject>();
readFromJsonObject(root);
configFile.close();
return;
@@ -81,8 +81,8 @@ protected:
// We assume the readFromJsonObject supplies sensible defaults if an empty object
// is supplied, this virtual function allows that to be changed.
virtual void applyDefaultConfig(){
DynamicJsonBuffer jsonBuffer;
JsonObject& root = jsonBuffer.createObject();
DynamicJsonDocument jsonDocument = DynamicJsonDocument(MAX_SETTINGS_SIZE);
JsonObject root = jsonDocument.to<JsonObject>();
readFromJsonObject(root);
}

19
src/SettingsService.h
View File

@@ -11,10 +11,9 @@
#include <SettingsPersistence.h>
#include <ESPAsyncWebServer.h>
#include <AsyncJson.h>
#include <ArduinoJson.h>
#include <AsyncJsonRequestWebHandler.h>
#include <AsyncJsonCallbackResponse.h>
#include <AsyncArduinoJson6.h>
/*
* Abstraction of a service which stores it's settings as JSON in a file system.
@@ -26,21 +25,23 @@ private:
AsyncJsonRequestWebHandler _updateHandler;
void fetchConfig(AsyncWebServerRequest *request){
AsyncJsonResponse * response = new AsyncJsonResponse();
writeToJsonObject(response->getRoot());
AsyncJsonResponse * response = new AsyncJsonResponse(MAX_SETTINGS_SIZE);
JsonObject jsonObject = response->getRoot();
writeToJsonObject(jsonObject);
response->setLength();
request->send(response);
}
void updateConfig(AsyncWebServerRequest *request, JsonVariant &json){
if (json.is<JsonObject>()){
JsonObject& newConfig = json.as<JsonObject>();
void updateConfig(AsyncWebServerRequest *request, JsonDocument &jsonDocument){
if (jsonDocument.is<JsonObject>()){
JsonObject newConfig = jsonDocument.as<JsonObject>();
readFromJsonObject(newConfig);
writeToFS();
// write settings back with a callback to reconfigure the wifi
AsyncJsonCallbackResponse * response = new AsyncJsonCallbackResponse([this] () {onConfigUpdated();});
writeToJsonObject(response->getRoot());
AsyncJsonCallbackResponse * response = new AsyncJsonCallbackResponse([this] () {onConfigUpdated();}, MAX_SETTINGS_SIZE);
JsonObject jsonObject = response->getRoot();
writeToJsonObject(jsonObject);
response->setLength();
request->send(response);
} else {

19
src/SimpleService.h
View File

@@ -10,10 +10,9 @@
#endif
#include <ESPAsyncWebServer.h>
#include <AsyncJson.h>
#include <ArduinoJson.h>
#include <AsyncArduinoJson6.h>
#include <AsyncJsonRequestWebHandler.h>
#include <AsyncJsonCallbackResponse.h>
/**
* At the moment, not expecting services to have to deal with large JSON
@@ -35,20 +34,22 @@ private:
AsyncJsonRequestWebHandler _updateHandler;
void fetchConfig(AsyncWebServerRequest *request){
AsyncJsonResponse * response = new AsyncJsonResponse();
writeToJsonObject(response->getRoot());
AsyncJsonResponse * response = new AsyncJsonResponse(MAX_SETTINGS_SIZE);
JsonObject jsonObject = response->getRoot();
writeToJsonObject(jsonObject);
response->setLength();
request->send(response);
}
void updateConfig(AsyncWebServerRequest *request, JsonVariant &json){
if (json.is<JsonObject>()){
JsonObject& newConfig = json.as<JsonObject>();
void updateConfig(AsyncWebServerRequest *request, JsonDocument &jsonDocument){
if (jsonDocument.is<JsonObject>()){
JsonObject newConfig = jsonDocument.as<JsonObject>();
readFromJsonObject(newConfig);
// write settings back with a callback to reconfigure the wifi
AsyncJsonCallbackResponse * response = new AsyncJsonCallbackResponse([this] () {onConfigUpdated();});
writeToJsonObject(response->getRoot());
AsyncJsonCallbackResponse * response = new AsyncJsonCallbackResponse([this] () {onConfigUpdated();}, MAX_SETTINGS_SIZE);
JsonObject jsonObject = response->getRoot();
writeToJsonObject(jsonObject);
response->setLength();
request->send(response);
} else {

8
src/WiFiScanner.cpp
View File

@@ -16,11 +16,11 @@ void WiFiScanner::scanNetworks(AsyncWebServerRequest *request) {
void WiFiScanner::listNetworks(AsyncWebServerRequest *request) {
int numNetworks = WiFi.scanComplete();
if (numNetworks > -1){
AsyncJsonResponse * response = new AsyncJsonResponse();
JsonObject& root = response->getRoot();
JsonArray& networks = root.createNestedArray("networks");
AsyncJsonResponse * response = new AsyncJsonResponse(MAX_WIFI_SCANNER_SIZE);
JsonObject root = response->getRoot();
JsonArray networks = root.createNestedArray("networks");
for (int i=0; i<numNetworks ; i++){
JsonObject& network = networks.createNestedObject();
JsonObject network = networks.createNestedObject();
network["rssi"] = WiFi.RSSI(i);
network["ssid"] = WiFi.SSID(i);
network["bssid"] = WiFi.BSSIDstr(i);

4
src/WiFiScanner.h
View File

@@ -11,12 +11,14 @@
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>
#include <AsyncJson.h>
#include <AsyncArduinoJson6.h>
#include <TimeLib.h>
#define SCAN_NETWORKS_SERVICE_PATH "/rest/scanNetworks"
#define LIST_NETWORKS_SERVICE_PATH "/rest/listNetworks"
#define MAX_WIFI_SCANNER_SIZE 1024
class WiFiScanner {
public:

4
src/WiFiStatus.cpp
View File

@@ -49,8 +49,8 @@ void WiFiStatus::onStationModeGotIP(WiFiEvent_t event, WiFiEventInfo_t info) {
#endif
void WiFiStatus::wifiStatus(AsyncWebServerRequest *request) {
AsyncJsonResponse * response = new AsyncJsonResponse();
JsonObject& root = response->getRoot();
AsyncJsonResponse * response = new AsyncJsonResponse(MAX_WIFI_STATUS_SIZE);
JsonObject root = response->getRoot();
wl_status_t status = WiFi.status();
root["status"] = (uint8_t) status;
if (status == WL_CONNECTED){

3
src/WiFiStatus.h
View File

@@ -11,9 +11,10 @@
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>
#include <AsyncJson.h>
#include <AsyncArduinoJson6.h>
#include <IPAddress.h>
#define MAX_WIFI_STATUS_SIZE 1024
#define WIFI_STATUS_SERVICE_PATH "/rest/wifiStatus"
class WiFiStatus {