[Gelöst] Android-App: Wie baue ich Socketverbindung zur Cloud.pro mit Java auf

UseCase ist eine native Android App.

Ich bin schon schon dabei mir die conn.js aus ioBroker.vis.cordova anzusehen.

Komme da auch weiter, wollte nur in die Runde Fragen ob das schon jemand am Laufen hat.

Falls es die Tage bei mir läuft, stell ich die Lösung gerne hier bereit.

Bluefox

Und falls nicht läuft, frage hier noch mal

Komme nicht wirklich weiter…

Zu welcher Url muss ich die Socketverbindung aufbauen?

mSocket = IO.socket("https://iobroker.pro/");

Muss ich den Port 8084 mit angeben?

Wie gebe ich username und password an?

Scheinbar gibt es diverse Möglichkeiten: Cookie, Url, mSocket.emit("authenticate"), ...

Falls hilfreich hier meine MainActivity:

package com.example.nagel.sockettest;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import java.net.URISyntaxException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import io.socket.client.Ack;
import io.socket.client.IO;
import io.socket.client.Socket;
import io.socket.emitter.Emitter;

import static android.content.ContentValues.TAG;

public class MainActivity extends AppCompatActivity {
    private Socket mSocket;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        IO.Options opts;

        SSLContext mySSLContext = null;
        try {
            mySSLContext = SSLContext.getInstance("TLS");
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        TrustManager[] trustAllCerts= new TrustManager[] { new X509TrustManager() {
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[] {};
            }

            public void checkClientTrusted(X509Certificate[] chain,
                                           String authType) throws CertificateException {
            }

            public void checkServerTrusted(X509Certificate[] chain,
                                           String authType) throws CertificateException {
            }
        } };

        try {
            mySSLContext.init(null, trustAllCerts, null);
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }

        HostnameVerifier myHostnameVerifier = new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        };

        opts = new IO.Options();
        opts.sslContext = mySSLContext;
        opts.hostnameVerifier = myHostnameVerifier;
        opts.secure = true;
        opts.forceNew = true;
        //opts.port = 8084;

        try {
            mSocket = IO.socket("https://iobroker.pro/", opts);
            mSocket.on(Socket.EVENT_CONNECT, onConnect);
            mSocket.on(Socket.EVENT_CONNECTING, onConnecting);
            mSocket.on(Socket.EVENT_DISCONNECT,onDisconnect);
            mSocket.on(Socket.EVENT_CONNECT_ERROR, onConnectError);
            mSocket.on(Socket.EVENT_CONNECT_TIMEOUT, onConnectError);
            mSocket.on("unauthorized", onConnectError);
            mSocket.on("authenticated", onConnectError);
            mSocket.on("error", onConnectError);
            mSocket.on("stateChange", onStateChange);

        } catch (URISyntaxException e) {
            throw new RuntimeException(e);
        }
        mSocket.connect();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mSocket.disconnect();
    }

    private Emitter.Listener onConnect = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            /*mSocket.emit("name", "socket.io", new Ack() {
                @Override
                public void call(Object... args) {
                    Log.i(TAG,"name");
                }
            });*/
            mSocket.emit("authentication","{username: \"John\", password: \"secret\"}", new Ack() {
                @Override
                public void call(Object... args) {
                    Log.i(TAG,"authentication");
                }
            });
            mSocket.emit("authenticate", new Ack() {
                @Override
                public void call(Object... args) {
                    Log.i(TAG,"authenticate");
                }
            });
            Log.i(TAG, "onConnect:" + args.toString());
        }
    };

    private Emitter.Listener onConnecting = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            Log.i(TAG, "onConnecting");
        }
    };

    private Emitter.Listener onDisconnect = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            Log.i(TAG, "onDisconnected");
        }
    };

    private Emitter.Listener onConnectError = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            Log.i(TAG, "onConnectError:" + args[0].toString());
        }
    };

    private Emitter.Listener onStateChange = new Emitter.Listener() {
        @Override
        public void call(final Object... args) {
            Log.i(TAG,"onStateChange:" + args[0].toString());
        }
    };
}

ich benutze als dependency:

implementation('io.socket:socket.io-client:1.0.0')

Und auch hiermit habe ich es bereits versucht ohne Erfolg:

...

       OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .hostnameVerifier(myHostnameVerifier)
                .sslSocketFactory(mySSLContext.getSocketFactory(), (X509TrustManager) trustAllCerts[0])
                .build();

// default settings for all sockets
        IO.setDefaultOkHttpWebSocketFactory(okHttpClient);
        IO.setDefaultOkHttpCallFactory(okHttpClient);

// set as an option
        opts = new IO.Options();
        opts.callFactory = okHttpClient;
        opts.webSocketFactory = okHttpClient;

        ...

Weitere Erkenntnis:

Die Angabe des Ports in der Url ("https://iobroker.pro:8084/") führt zu Timeouts während des mSocket.connect()

Bluefox

Wenn ich an deiner Stelle währe, würde ich erst hier:

[Authenticate sich:]

https://github.com/ioBroker/ioBroker.vi … pp.js#L656

und danach hier

[<link_text text="https://github.com/ioBroker/ioBroker.vi ... pp.js#L732">https://github.com/ioBroker/ioBroker.vis.cordova/blob/master/app.js#L732</link_text>
und hier
[Credentials for socket.io]
https://github.com/ioBroker/ioBroker.vi ... pp.js#L737
schauen](<br/>
<URL url=)[" target="_blank">

https://github.com/ioBroker/ioBroker.vi … pp.js#L732

und hier

[Credentials for socket.io]

https://github.com/ioBroker/ioBroker.vi … pp.js#L737

schauen](<br/>
<URL url=)

~~@Bluefox:~~

Wenn ich an deiner Stelle währe, würde ich erst hier:

[Authenticate sich:]

https://github.com/ioBroker/ioBroker.vi … pp.js#L656

und danach hier

[<link_text text="https://github.com/ioBroker/ioBroker.vi ... pp.js#L732">https://github.com/ioBroker/ioBroker.vis.cordova/blob/master/app.js#L732</link_text>
und hier
[Credentials for socket.io]
https://github.com/ioBroker/ioBroker.vi ... pp.js#L737
schauenPerfekt. So mach ich weiter.

Kann ich die app.js irgendwie debuggen?

Gesendet von meinem Pixel 2 mit Tapatalk

" target="_blank">

https://github.com/ioBroker/ioBroker.vi … pp.js#L732

und hier

[Credentials for socket.io]

https://github.com/ioBroker/ioBroker.vi … pp.js#L737

schauenPerfekt. So mach ich weiter.

Kann ich die app.js irgendwie debuggen?

Gesendet von meinem Pixel 2 mit Tapatalk](<br/>
<URL url=) `

Bluefox

https://developers.google.com/web/tools … debugging/

http://download.iobroker.net/android-debug.apk

Das debuggen der app.js hat wunderbar geklappt.

Nun muss ich die Werte nur noch korrekt in die Socketvebindung einbauen.

Ich denke die Schwierigkeit liegt noch bei der Authentikation mit Cookie.

Url habe ich folgende:````
https://iobroker.pro/?key=nokey&user=my.email%40gmail.com&pass=totalgeheim


Den generellen Aufbau habe ich hier entnommen: [https://github.com/socketio/socket.io-client-java](https://github.com/socketio/socket.io-client-java)

Und hier die aktuelle MainActivity:

package com.example.nagel.sockettest;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import java.net.URISyntaxException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import io.socket.client.Ack;
import io.socket.client.IO;
import io.socket.client.Manager;
import io.socket.client.Socket;
import io.socket.emitter.Emitter;
import io.socket.engineio.client.Transport;
import okhttp3.OkHttpClient;

import static android.content.ContentValues.TAG;

public class MainActivity extends AppCompatActivity {
private Socket mSocket;
private OkHttpClient okHttpClient;
private String url = "https://iobroker.pro/?key=nokey&user=my.email%40gmail.com&pass=totalgeheim";
private String cookie = "username=my.email@gmail.com;password=totalgeheim";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    getHttpClient();

    IO.Options opts;
    opts = new IO.Options();
    opts.callFactory = okHttpClient;
    opts.webSocketFactory = okHttpClient;
    opts.upgrade = true;
    opts.reconnection = false;
    opts.forceNew = true;

    try {
        mSocket = IO.socket(url);
        mSocket.io().on(Manager.EVENT_TRANSPORT, onTransport);
        mSocket.on(Socket.EVENT_CONNECT, onConnect);
        mSocket.on(Socket.EVENT_DISCONNECT,onDisconnect);
        mSocket.on(Socket.EVENT_CONNECT_ERROR, onConnectError);
        mSocket.on(Socket.EVENT_CONNECT_TIMEOUT, onConnectError);

    } catch (URISyntaxException e) {
        throw new RuntimeException(e);
    }
    mSocket.connect();
}

private void getHttpClient() {
    SSLContext mySSLContext = null;
    try {
        mySSLContext = SSLContext.getInstance("TLS");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    TrustManager[] trustAllCerts= new TrustManager[] { new X509TrustManager() {
        public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[] {};
        }

        public void checkClientTrusted(X509Certificate[] chain,
                                       String authType) throws CertificateException {
        }

        public void checkServerTrusted(X509Certificate[] chain,
                                       String authType) throws CertificateException {
        }
    } };

    try {
        mySSLContext.init(null, trustAllCerts, null);
    } catch (KeyManagementException e) {
        e.printStackTrace();
    }

    HostnameVerifier myHostnameVerifier = new HostnameVerifier() {
        @Override
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    };

    okHttpClient = new OkHttpClient.Builder()
            .hostnameVerifier(myHostnameVerifier)
            .sslSocketFactory(mySSLContext.getSocketFactory(), (X509TrustManager) trustAllCerts[0])
            .build();

    IO.setDefaultOkHttpWebSocketFactory(okHttpClient);
    IO.setDefaultOkHttpCallFactory(okHttpClient);
}

private Emitter.Listener onConnect = new Emitter.Listener() {
    @Override
    public void call(Object... args) {
        mSocket.emit("getState","javascript.0.vi_text", new Ack() {
            @Override
            public void call(Object... args) {
                Log.i(TAG,"getState");
            }
        });
        Log.i(TAG, "onConnect:" + args.toString());
    }
};

private Emitter.Listener onTransport = new Emitter.Listener() {
    @Override
    public void call(Object... args) {
        Transport transport = (Transport)args[0];

        transport.on(Transport.EVENT_REQUEST_HEADERS, new Emitter.Listener() {
            @Override
            public void call(Object... args) {
                @SuppressWarnings("unchecked")
                Map<string, list<string="">> headers = (Map<string, list<string="">>)args[0];
                // modify request headers
                headers.put("Cookie", Arrays.asList(cookie));
            }
        });

        transport.on(Transport.EVENT_RESPONSE_HEADERS, new Emitter.Listener() {
            @Override
            public void call(Object... args) {
                @SuppressWarnings("unchecked")
                Map<string, list<string="">> headers = (Map<string, list<string="">>)args[0];
                // access response headers
                //String cookie = headers.get("Set-Cookie").get(0);
            }
        });
    }
};

private Emitter.Listener onDisconnect = new Emitter.Listener() {
    @Override
    public void call(Object... args) {
        Log.i(TAG, "onDisconnected");
    }
};

private Emitter.Listener onConnectError = new Emitter.Listener() {
    @Override
    public void call(Object... args) {
        Log.i(TAG, "onConnectError:" + args[0].toString());
    }
};

@Override
public void onDestroy() {
    super.onDestroy();
    mSocket.disconnect();
}

}</string,></string,></string,></string,>

Ich habe einen kleinen Fortschritt erreicht.

Mittlerweile habe ich das Socket connected.

Nun bekomme ich jedoch keine Antworten auf die Anfragen…

Jemand noch eine Idee woran es liegen könnte?!?

Sobald der Connect des Socket erfolgreich ist, versuche ich States abzufragen:

mSocket.emit("getStates", "javascript.0.*", ...

Hier der gesamte Code der MainActivity Klasse:

package com.example.nagel.sockettest;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import java.net.URISyntaxException;
import java.util.List;
import java.util.Map;

import io.socket.client.Ack;
import io.socket.client.IO;
import io.socket.client.Manager;
import io.socket.client.Socket;
import io.socket.emitter.Emitter;
import io.socket.engineio.client.Transport;
import io.socket.engineio.client.transports.WebSocket;

import static android.content.ContentValues.TAG;

public class MainActivity extends AppCompatActivity {
    private Socket mSocket;
    private IO.Options opts;
    private final String url = "https://iobroker.pro/?key=nokey&user=max.mustermann%40gmail.com&pass=geheim";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        createIoOptions();

        createSocket();

        mSocket.connect();
    }

    private void createSocket() {
        try {
            mSocket = IO.socket(url, opts);
            mSocket.io().on(Manager.EVENT_TRANSPORT, onTransport);
            mSocket.on(Socket.EVENT_CONNECT, onConnect);
            mSocket.on(Socket.EVENT_DISCONNECT, onDisconnect);
            mSocket.on(Socket.EVENT_CONNECT_ERROR, onConnectError);
            mSocket.on(Socket.EVENT_CONNECT_TIMEOUT, onConnectError);

        } catch (URISyntaxException e) {
            throw new RuntimeException(e);
        }
    }

    private void createIoOptions() {
        opts = new IO.Options();
        opts.upgrade = true;
        opts.reconnection = true;
        opts.forceNew = true;
        opts.transports = new String[]{WebSocket.NAME};
    }

    private Emitter.Listener onConnect = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            mSocket.emit("getStates", "javascript.0.*", new Ack() {
                @Override
                public void call(Object... args) {
                    Log.i(TAG, "getState");
                }
            });
            Log.i(TAG, "onConnect:" + args.toString());
        }
    };

//nur zum debuggen eingebaut
    private Emitter.Listener onTransport = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            Transport transport = (Transport) args[0];

            transport.on(Transport.EVENT_REQUEST_HEADERS, new Emitter.Listener() {
                @Override
                public void call(Object... args) {
                    @SuppressWarnings("unchecked")
                    Map<string, list<string="">> headers = (Map<string, list<string="">>) args[0];
                }
            });

            transport.on(Transport.EVENT_RESPONSE_HEADERS, new Emitter.Listener() {
                @Override
                public void call(Object... args) {
                    if (args[0] != null) {
                        Map<string, list<string="">> headers = (Map<string, list<string="">>) args[0];
                    }
                }
            });
        }
    };

    private Emitter.Listener onDisconnect = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            Log.i(TAG, "onDisconnected");
        }
    };

    private Emitter.Listener onConnectError = new Emitter.Listener() {
        @Override
        public void call(Object... args) {
            Log.i(TAG, "onConnectError:" + args[0].toString());
        }
    };

    @Override
    public void onDestroy() {
        super.onDestroy();
        mSocket.disconnect();
    }

}</string,></string,></string,></string,>

Problem ist gelöst.

Das Ergebnis ist hier zu sehen:

viewtopic.php?f=36&t=14919

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