Fork of the excellent esp8266-react - https://github.com/rjwats/esp8266-react
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77 lines
2.4 KiB
77 lines
2.4 KiB
#ifndef SettingsService_h
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#define SettingsService_h
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#if defined(ESP8266)
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#include <ESP8266WiFi.h>
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#include <ESPAsyncTCP.h>
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#elif defined(ESP_PLATFORM)
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#include <WiFi.h>
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#include <AsyncTCP.h>
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#endif
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#include <SecurityManager.h>
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#include <SettingsPersistence.h>
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#include <ESPAsyncWebServer.h>
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#include <ArduinoJson.h>
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#include <AsyncJsonWebHandler.h>
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#include <AsyncArduinoJson6.h>
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/*
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* Abstraction of a service which stores it's settings as JSON in a file system.
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*/
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class SettingsService : public SettingsPersistence {
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public:
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SettingsService(AsyncWebServer* server, FS* fs, char const* servicePath, char const* filePath): SettingsPersistence(fs, filePath), _servicePath(servicePath) {
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server->on(_servicePath, HTTP_GET, std::bind(&SettingsService::fetchConfig, this, std::placeholders::_1));
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_updateHandler.setUri(servicePath);
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_updateHandler.setMethod(HTTP_POST);
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_updateHandler.setMaxContentLength(MAX_SETTINGS_SIZE);
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_updateHandler.onRequest(std::bind(&SettingsService::updateConfig, this, std::placeholders::_1, std::placeholders::_2));
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server->addHandler(&_updateHandler);
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// read the initial data from the file system
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readFromFS();
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}
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virtual ~SettingsService() {}
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protected:
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char const* _servicePath;
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AsyncJsonWebHandler _updateHandler;
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virtual void fetchConfig(AsyncWebServerRequest *request) {
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// handle the request
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AsyncJsonResponse * response = new AsyncJsonResponse(MAX_SETTINGS_SIZE);
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JsonObject jsonObject = response->getRoot();
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writeToJsonObject(jsonObject);
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response->setLength();
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request->send(response);
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}
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virtual void updateConfig(AsyncWebServerRequest *request, JsonDocument &jsonDocument) {
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// handle the request
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if (jsonDocument.is<JsonObject>()){
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JsonObject newConfig = jsonDocument.as<JsonObject>();
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readFromJsonObject(newConfig);
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writeToFS();
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// write settings back with a callback to reconfigure the wifi
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AsyncJsonCallbackResponse * response = new AsyncJsonCallbackResponse([this] () {onConfigUpdated();}, MAX_SETTINGS_SIZE);
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JsonObject jsonObject = response->getRoot();
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writeToJsonObject(jsonObject);
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response->setLength();
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request->send(response);
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} else {
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request->send(400);
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}
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}
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// implement to perform action when config has been updated
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virtual void onConfigUpdated(){}
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};
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#endif // end SettingsService
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