[BUG] SSDP Async dont work in APSTA mode only in STA

[JulioCRO]

Describe the bug Using the example for the "async" method, I realized that I only get a response when using STA mode, in APSTA hybrid mode, responses are not sent to multicast (unlike what happens on the 8266, I'm migrating to esp32).

To Reproduce I used the async web server example contained in ESPAsyncWebSrv.h and added the basics of the ESP32SSDP.h example (also async) `// // A simple server implementation showing how to: // * serve static messages // * read GET and POST parameters // * handle missing pages / 404s //

#include <Arduino.h> #ifdef ESP32 #include <WiFi.h> #include <AsyncTCP.h> #elif defined(ESP8266) #include <ESP8266WiFi.h> #include <ESPAsyncTCP.h> #endif #include <ESPAsyncWebSrv.h> #include "ESP32SSDP.h"

AsyncWebServer server(80);

const char* ssid = "XXXXXXXXXXXXX"; const char* password = "XXXXXXXXXXXXX";

const char* PARAM_MESSAGE = "message";

void notFound(AsyncWebServerRequest *request) { request->send(404, "text/plain", "Not found"); }

void setup() {

Serial.begin(115200);
WiFi.mode(WIFI_MODE_APSTA);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
    Serial.printf("WiFi Failed!\n");
    return;
}

Serial.print("IP Address: ");
Serial.println(WiFi.localIP());

server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
    request->send(200, "text/plain", "Hello, world");
});

// Send a GET request to <IP>/get?message=<message>
server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) {
    String message;
    if (request->hasParam(PARAM_MESSAGE)) {
        message = request->getParam(PARAM_MESSAGE)->value();
    } else {
        message = "No message sent";
    }
    request->send(200, "text/plain", "Hello, GET: " + message);
});

// 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_MESSAGE, true)) {
        message = request->getParam(PARAM_MESSAGE, true)->value();
    } else {
        message = "No message sent";
    }
    request->send(200, "text/plain", "Hello, POST: " + message);
});
    server.on("/description.xml", HTTP_GET, [&](AsyncWebServerRequest *request) {
        request->send(200, "text/xml", SSDP.schema(false));
    });
server.onNotFound(notFound);

server.begin();

        //set schema xml url, nees to match http handler
    //"ssdp/schema.xml" if not set
    SSDP.setSchemaURL("description.xml");
    //set port
    //80 if not set
    SSDP.setHTTPPort(80);
    //set device name
    //Null string if not set
    SSDP.setName("Philips hue clone");
    //set Serial Number
    //Null string if not set
    SSDP.setSerialNumber("001788102201");
    //set device url
    //Null string if not set
    SSDP.setURL("index.html");
    //set model name
    //Null string if not set
    SSDP.setModelName("Philips hue bridge 2012");
    //set model description
    //Null string if not set
    SSDP.setModelDescription("This device can be controled by WiFi");
    //set model number
    //Null string if not set
    SSDP.setModelNumber("929000226503");
    //set model url
    //Null string if not set
    SSDP.setModelURL("http://www.meethue.com");
    //set model manufacturer name
    //Null string if not set
    SSDP.setManufacturer("Royal Philips Electronics");
    //set model manufacturer url
    //Null string if not set
    SSDP.setManufacturerURL("http://www.philips.com");
    //set device type
    //"urn:schemas-upnp-org:device:Basic:1" if not set
    SSDP.setDeviceType("rootdevice"); //to appear as root device, other examples: MediaRenderer, MediaServer ...
    //set server name
    //"Arduino/1.0" if not set
    SSDP.setServerName("SSDPServer/1.0");
    //set UUID, you can use https://www.uuidgenerator.net/
    //use 38323636-4558-4dda-9188-cda0e6 + 4 last bytes of mac address if not set
    //use SSDP.setUUID("daa26fa3-d2d4-4072-bc7a-a1b88ab4234a", false); for full UUID
    SSDP.setUUID("daa26fa3-d2d4-4072-bc7a");
    //Set icons list, NB: optional, this is ignored under windows
    SSDP.setIcons(  "<icon>"
                    "<mimetype>image/png</mimetype>"
                    "<height>48</height>"
                    "<width>48</width>"
                    "<depth>24</depth>"
                    "<url>icon48.png</url>"
                    "</icon>");
    //Set service list, NB: optional for simple device
    SSDP.setServices(  "<service>"
                       "<serviceType>urn:schemas-upnp-org:service:SwitchPower:1</serviceType>"
                       "<serviceId>urn:upnp-org:serviceId:SwitchPower:1</serviceId>"
                       "<SCPDURL>/SwitchPower1.xml</SCPDURL>"
                       "<controlURL>/SwitchPower/Control</controlURL>"
                       "<eventSubURL>/SwitchPower/Event</eventSubURL>"
                       "</service>");

    Serial.println("Starting SSDP...");
   if ( SSDP.begin()){
    Serial.println("SSDP started");
   }else{
    Serial.println("SSDP Fail");
   }

// WiFi.mode(WIFI_MODE_APSTA); }

void loop() { }`

1. Changed WiFi.mode(WIFI_MODE_STA); to WiFi.mode(WIFI_MODE_APSTA);

Expected behavior SSDP response sent to broadcast (Show in windows network) in both STA and APSTA modes. Screenshots

Firmware:

• ESP core version: v2.0.14
• Library Version:1.2.0
• Wifi mode:APSTA

Board used (please complete the following information):

• MCU: ESP32
• Name: esp32dev
• Flash size: 4MB 1.2M/1.5M

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[luc-github]

Only STA is supported currently : https://github.com/luc-github/ESP32SSDP/blob/master/src/ESP32SSDP.cpp#L156-L170 why using APSTA ?

[JulioCRO]

Only STA is supported currently : https://github.com/luc-github/ESP32SSDP/blob/master/src/ESP32SSDP.cpp#L156-L170 why using APSTA ?

Because sometimes I need both working AP and STA, for example, test if i can connect to new network. But as you pointed maybe just add "or WiFi.getMode() == WIFI_AP_STA" since the code catch IP from STA. I will perform some tests and gives a feedback

[luc-github]

if you need to test a new network you can scan network from AP mode by switching to APSTA of course once done you must switch back to AP
when you join the network you need to switch to STA , the servers need to tight to new STA IP Server can only stick to 1 IP not 2, so you need to choose AP or STA

[luc-github]

@JulioCRO any update / feedback ? Or can I close issue ?