Hello everyone,
I use a server installed in an ESP8266 to open my garage door with a code sent by Domoticz. This code is turning it can only be used once.
In the attached sketch I recover the opening code with the Get_http but I cannot send the new code via Response of ESPAsyncWebServer .
Can anyone help me?
#include <Arduino.h>
#ifdef ESP32
#include <WiFi.h>
#include <AsyncTCP.h>
#elif defined(ESP8266)
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#endif
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>
const int len=12; // longueur du code porte
char lastCode[len] = "Init"; // a la mise sous tension
AsyncWebServer server(80);
const char* ssid = "******";
const char* password = "I***********";
const char* PARAM_KEY = "key";
const char DzUrl[]="http://192.168.0.45:18080";
const char DzJSON[]="/json.htm?type=command¶m=updateuservariable&vname=PGnextCode&vtype=string&vvalue=";
void notFound(AsyncWebServerRequest *request) {
request->send(404, "text/plain", "Not found");
}
void PGrecData (AsyncWebServerRequest *request){
Serial.println("Je suis dans PGrecData");
String message; // char n'est pas accepté par Request
if (request->hasParam(PARAM_KEY)) {
message = request->getParam(PARAM_KEY)->value();
request->send(200, "text/plain", "Hello, GET: " + message);
Serial.print("Message dans l'URL: ");
Serial.println(message);
Serial.print("lastCode value: ");
Serial.println(lastCode);
// convert message in Char
char codePG[len];
for (unsigned int i = 0; i <= len; i++) {
codePG[i]= message[i];
}
codePG[len+1]=0; // 13em char = fin de chaine
//compare receive Code with the last one send
if (strcmp(codePG,lastCode)== 0) {
Serial.println("OK: j'ouvre la porte");
digitalWrite(LED_BUILTIN, LOW);
delay(1000);
digitalWrite(LED_BUILTIN, HIGH);
}
else {
Serial.println("Les Codes ne sont pas identiques ! ");
}
Serial.println(" Attendre 1 seconde ... ");
delay(1000); // laisse du temps a DZ
// Génère le Nouveau code
char code[len]="Hello!"; // juste pour init de la chaine
for (unsigned int i = 0; i <= len; i++) {
//car spéciaux http://192.168.0.15/get?key=kjgkjgkkjhhg1234567890?,.;/:%C2%A7!%C3%A9~%27{[-|
code[i]= random(48,123); // & interdit!
}
code[len+1]=0; // end of string for serial printing
Serial.print("New code value: ");
Serial.println(code);
// Response send newCode to Domoticz
StaticJsonDocument<100> JSONData;
// Use the object just like a javascript object or a python dictionary
JSONData["key"] = code;
// You can add more fields
serializeJson(JSONData, Serial); // ex:{"key":"?Ae6c40EBHvwu"}
char data[100];
// Converts the JSON object to String and stores it in data variable
serializeJson(JSONData,data);
// Set content type as application/json and send the data
//MARCHE PAS! AsyncWebServerResponse *response = request->beginResponse(200, "text/html", data);
// MARCHE PAS AsyncWebServerResponse *response = request->beginResponse(200, "text/html", "<html><head></head><body>Hello World!</body></html>");
//response->addHeader("Domoticz","PGcode");
request->send(response);
//request->send(200,"application/json",data);
}
else { message = "BAD json receive"; }
}
void setup() {
Serial.begin(115200);
pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output
digitalWrite(LED_BUILTIN, HIGH); // eteind la LED
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println(""); // print a new line
Serial.print("Connecting .");
while (WiFi.status() != WL_CONNECTED) { //Wait for connection
delay(500);
Serial.print(".");
}
Serial.println(""); // print a new line
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "text/plain", "Hello, world");
});
// Send a GET request to <IP>/PG/get?key=<message>
server.on("/PG/get", HTTP_GET, PGrecData);
// Send a POST request to <IP>/post with a form field message set to <message>
server.on("/post", HTTP_POST, [](AsyncWebServerRequest *request){
String message;
if (request->hasParam(PARAM_KEY, true)) {
message = request->getParam(PARAM_KEY, true)->value();
} else {
message = "No message sent";
}
request->send(200, "text/plain", "Hello, POST: " + message);
});
server.onNotFound(notFound);
server.begin();
Serial.print("Server listening, Open ");
Serial.print(WiFi.localIP());
Serial.println(" in your browser.");
}
void loop() {
}
Here the result in the serial monitor:
19:02:35.090 -> Message dans l'URL: 12/07/1950
19:02:35.090 -> lastCode value: Init
19:02:35.090 -> Les Codes ne sont pas identiques !
19:02:35.090 -> Attendre 1 seconde ...
19:02:36.105 -> New code value: ;O<Jcv6IY[XDS
19:02:36.105 -> {"key":";O<Jcv6IY[XDS"}
