I am able to store the access token but now for example i wish to make a Toast message that says "user loggen in as [username]" but i get the error that this task is on a worker thread so i need to to this in the main thread. But i do not know how to get the data from my async request into the main thread and eventually do an explicit Intent to a new Activity while also passing the user's info and access token.
I already have a web application for the project that I'm working on and now i wish to make a companion app that will use my web applications REST api to get and post data. The web application is a Laravel application that uses Passport for handling logins. I'm new to android development but I was able to post my login data from my android app to the Laravel application and get a valid response meaning that the email and password match so I get the user's info and a access token.
inputSubmit.setOnClickListener { _ ->
val email = inputEmail.text.toString()
val password = inputPassword.text.toString()
val address = prefrence.getValueString("API_ADDRESS") + "/login"
val payload = mapOf("email" to email, "password" to password)
var response : String
var loginParsed : Login?
khttp.async.post(address, headers=mapOf("Accept" to "application/json"), data = payload, timeout = 10.0, onResponse = {
println("Status code: $statusCode")
//println("Response text: $text")
response = text
loginParsed = Klaxon().parse<Login>(response) //Works
prefrence.save("API_KEY", loginParsed?.access_token.toString()) //Works
println("Logged in user: " + loginParsed?.user_name.toString()) //Works
Toast.makeText(applicationContext, "Korisnik: " + loginParsed?.user_name.toString(), Toast.LENGTH_LONG).show()
}, onError = {
println("ERROR MESSAGE: $message") //Works
})
//println("Username: " + loginParsed) // ! Variable 'loginParsed' must be intialized
}
What i want is to be able to access the data outside of the khttp.async.post and pass in onto the new Activity and make a Toast message. When i try to make the Toast message i get the following error:
I/System.out: ERROR MESSAGE: Can't create handler inside thread that has not called Looper.prepare()
I'm writing VB.NET code to send notification to android Emulator. I can successfully send test message from the firebase control. However, it failed when I tried to send message via VB.NET code in my local machine and get error "The remote server returned an error: (401) Unauthorized".
I have tried looking at the following link:
FCM (Firebase Cloud Messaging) Push Notification with Asp.Net
and following the instructions but it still not working.
Here is my code:
Imports System.Net
Imports Newtonsoft.Json
Public Class Notification
Public Sub SendNotification(ByVal deviceIDList As List(Of String), ByVal title As String, ByVal bodyMsg As String)
Dim fcmPath As String = "https://fcm.googleapis.com/fcm/send"
Dim serverKey As String = "AIzaxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxoCAeI"
Dim senderID As String = "35xxxxxxx37"
Dim request As HttpWebRequest = CType(HttpWebRequest.Create(fcmPath), HttpWebRequest)
With request
.Method = "POST"
.ContentType = "application/json"
.Headers.Add(String.Format("Authorization: key={0}", serverKey))
.Headers.Add(String.Format("Sender: id={0}", senderID))
End With
Using streamWriter = New StreamWriter(request.GetRequestStream())
Dim webObject As New WebRequestFcmData
With webObject
.registration_ids = deviceIDList
.notification.title = title
.notification.body = bodyMsg
.notification.content_available = True
.notification.sound = "default"
.notification.priority = "high"
End With
Dim body = JsonConvert.SerializeObject(webObject)
With streamWriter
.Write(body)
.Flush()
.Close()
End With
End Using
Dim httpResponse = CType(request.GetResponse(), HttpWebResponse)
Using streamReader As New StreamReader(httpResponse.GetResponseStream)
Dim result = streamReader.ReadToEnd
End Using
End Sub
End Class
Public Class WebRequestFcmData
Public Property registration_ids As List(Of String)
Public Property notification As New NotificationData
End Class
Public Class NotificationData
Public Property body As String
Public Property content_available As Boolean
Public Property priority As String
Public Property title As String
Public Property sound As String
End Class
The error occurred at the line:
Dim httpResponse = CType(request.GetResponse(), HttpWebResponse)
Here is the server key and sender ID that I use:
Updated:
I tried sending web request from Postman application and it also gave the same error (401: Unauthorized) as shown in the figure below:
OK. I made a silly mistake by using API Key which is not actual Server key. Even though I have read that I should go to cloud messaging tab in project setting, I misunderstood that I have to look in cloud messaging tab in the side bar which is wrong. Here is the step where I found server key:
Click on the setting button near Project Overview
Choose the first option (Project setting)
Click on the second tab (Cloud messaging)
Use the server key and sender ID in this page
At first, I tried looking for server key in cloud messaging tab in the sidebar which is wrong location.
I'm a beginner of android programming. I had started a test project which is about using an android app to access web service and run function there. I am using ksoap2 to call the web services.
When I want to login to a database through phone and the web service return a session ID to me. But after that, When I want to run other function in service, and I pass it in session ID, it tell me that there is a null object reference. I tried use the session ID again to get back the login details but it shows that the session doesn't point to any session. This is the method which allow me to connect with web services. While for android, I just simply call using ksoap2.
<WebMethod(True)> _
Public Function CompanyConnectionString() As String
Dim lErrCode, lRetCode As Long
Dim sErrMsg As String = ""
Dim sSessionID As String = ""
Dim oCompany As SAPbobsCOM.Company
oCompany = New SAPbobsCOM.Company
// User and other details to connect
oCompany.Server = "xx.x.x.xx" //ip address
oCompany.DbServerType = SAPbobsCOM.BoDataServerTypes.dst_MSSQL2012
oCompany.DbUserName = "dbUser"
oCompany.DbPassword = "dbPassword"
oCompany.CompanyDB = "CompanyDB"
oCompany.UserName = "User"
oCompany.Password = "Password"
oCompany.LicenseServer = "xx.x.x.xx:xxxxx" // ip
lRetCode = oCompany.Connect
If lRetCode <> 0 Then
oCompany.GetLastError(lErrCode, sErrMsg)
sSessionID = lErrCode & "-" & sErrMsg
Else
sSessionID = Session.SessionID.ToString
Session.Add(sSessionID, oCompany)
''
Cookies.SetCookies(oCompany, "SID")
End If
Return sSessionID
End Function
I found that it might lose the session ID and I can't get back the login details for other functions later. So is that any idea for that? How I gonna do? without this I can't proceed further in my program.
Thank in advance..
Well, the problem had just solved. Me and my friend found out that that is because the sessionID is forgotten due to the max-age=0;. So we add that to our sessionID and it ran.
if (headerKey != null) {
if (headerKey.equals("Set-Cookie")) {
cookieBuilder.append(headerValue + "max-age=86400;");
}
} //headervalue is the sessionID
This will allow the session to stay active for 86400 seconds = 1 day.
So the sessionID can be use for running other function on web service
UPDATE 27th January 2013
I have now resolved this, Please check the accepted answer.
I am having trouble to get my refresh token and my access token when using the server side flow between my Android Application and my PHP server.
So I have managed to get my One Time Code by using the below:
AsyncTask<Void, Void, String> task = new AsyncTask<Void, Void, String>() {
#Override
protected String doInBackground(Void... params) {
Bundle appActivities = new Bundle();
appActivities.putString(GoogleAuthUtil.KEY_REQUEST_VISIBLE_ACTIVITIES,
"http://schemas.google.com/AddActivity");
String scopes = "oauth2:server:client_id:" + SERVER_CLIENT_ID +
":api_scope:" + SCOPE_STRING;
try {
code = GoogleAuthUtil.getToken(
OneTimeCodeActivity.this, // Context context
mPlusClient.getAccountName(), // String accountName
scopes, // String scope
appActivities // Bundle bundle
);
} catch (IOException transientEx) {
// network or server error, the call is expected to succeed if you try again later.
// Don't attempt to call again immediately - the request is likely to
// fail, you'll hit quotas or back-off.
System.out.println(transientEx.printStactTrace());
return "Error";
} catch (UserRecoverableAuthException e) {
// Recover
code = null;
System.out.println(e.printStackTrace());
OneTimeCodeActivity.this.startActivityForResult(e.getIntent(), REQUEST_AUTHORIZATION);
} catch (GoogleAuthException authEx) {
// Failure. The call is not expected to ever succeed so it should not be
// retried.
System.out.println(authEx.printStackTrace());
return "Error";
} catch (Exception e) {
System.out.println(authEx.printStackTrace());
}
}
Which will then store the token in the variable "code" and I call up the async task as
task.execute();
The code above will always bring up a popup message and throw UserRecoverableAuthException Need Permission that requires the user to grant offline access, which means the above will need to be called twice to retrieve the code and store it in "code"
I am now trying to send this across to my server which is implemented in PHP.
I have used the quick start https://developers.google.com/+/quickstart/php and managed to get that working.
In here, there is a sample signin.php
In here and according to the documentation this already implements a One Time Authorisation Server Side Flow.
So now my problem is sending this One Time Code to the server.
I used the photohunt Android Auth example for this located here.
https://github.com/googleplus/gplus-photohunt-client-android/blob/master/src/com/google/plus/samples/photohunt/auth/AuthUtil.java
I used the "authorization" method of the code and called up signin.php/connect through a post method shown below
$app->post('/connect', function (Request $request) use ($app, $client) {
$token = $app['session']->get('token');
if (empty($token)) {
// Ensure that this is no request forgery going on, and that the user
// sending us this connect request is the user that was supposed to.
if ($request->get('state') != ($app['session']->get('state'))) {
return new Response('Invalid state parameter', 401);
}
// Normally the state would be a one-time use token, however in our
// simple case, we want a user to be able to connect and disconnect
// without reloading the page. Thus, for demonstration, we don't
// implement this best practice.
//$app['session']->set('state', '');
$code = $request->getContent();
// Exchange the OAuth 2.0 authorization code for user credentials.
$client->authenticate($code);
$token = json_decode($client->getAccessToken());
// You can read the Google user ID in the ID token.
// "sub" represents the ID token subscriber which in our case
// is the user ID. This sample does not use the user ID.
$attributes = $client->verifyIdToken($token->id_token, CLIENT_ID)
->getAttributes();
$gplus_id = $attributes["payload"]["sub"];
// Store the token in the session for later use.
$app['session']->set('token', json_encode($token));
$response = 'Successfully connected with token: ' . print_r($token, true);
}
return new Response($response, 200);
});
Now when I send the code using the above implementation, I get an 500 messages that says the below
Google_AuthException Error fetching OAuth2 access token, message: 'invalid_grant'
in ../vendor/google/google-api-php-client/src/auth/Google_OAuth2.php line 115
at Google_OAuth2->authenticate(array('scope' => 'https://www.googleapis.com/auth/plus.login'), '{ "token":"xxxxxxxx"}') in ../vendor/google/google-api-php-client/src/Google_Client.php line 131
at Google_Client->authenticate('{ "token":"xxxxxxx"}') in ../signin.php line 99
at {closure}(object(Request))
at call_user_func_array(object(Closure), array(object(Request))) in ../vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpKernel.php line 117
at HttpKernel->handleRaw(object(Request), '1') in ../vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpKernel.php line 61
at HttpKernel->handle(object(Request), '1', true) in ../vendor/silex/silex/src/Silex/Application.php line 504
at Application->handle(object(Request)) in ../vendor/silex/silex/src/Silex/Application.php line 481
at Application->run() in ../signin.php line 139
Funny enough I have had to worked once where I did receive a 200, but I cannot recreate it.
So I know I have definitely got the implementation wrong, but I have no clue on how to send it and get my refresh token. I can't find anywhere on the web that explains this. Is someone able to help me please.
UPDATE 16 Jan 2014
Using https://www.googleapis.com/oauth2/v1/tokeninfo?access_token= I can see that the token being produced from getToken is valid and is indeed valid for 1 hour.
I can confirm the json formation is correct by changing the way I am inputting into the Post request and if I don't do it properly I get a total failure.
Now I am going deeper into the php and look at this section Google_OAuth2.php line 115 where it is breaking it is throwing a Google_AuthException. The code is below and this is provided in the quick starter pack
/**
* #param $service
* #param string|null $code
* #throws Google_AuthException
* #return string
*/
public function authenticate($service, $code = null) {
if (!$code && isset($_GET['code'])) {
$code = $_GET['code'];
}
if ($code) {
// We got here from the redirect from a successful authorization grant, fetch the access token
$request = Google_Client::$io->makeRequest(new Google_HttpRequest(self::OAUTH2_TOKEN_URI, 'POST', array(), array(
'code' => $code,
'grant_type' => 'authorization_code',
'redirect_uri' => $this->redirectUri,
'client_id' => $this->clientId,
'client_secret' => $this->clientSecret
)));
if ($request->getResponseHttpCode() == 200) {
$this->setAccessToken($request->getResponseBody());
$this->token['created'] = time();
return $this->getAccessToken();
} else {
$response = $request->getResponseBody();
$decodedResponse = json_decode($response, true);
if ($decodedResponse != null && $decodedResponse['error']) {
$response = $decodedResponse['error'];
}
throw new Google_AuthException("Error fetching OAuth2 access token, message: '$response'", $request->getResponseHttpCode());
}
}
$authUrl = $this->createAuthUrl($service['scope']);
header('Location: ' . $authUrl);
return true;
}
I edit the code above to make sure the code, the client id and secret were correct and they were. So that is where I am now, I don't think it is scope issues as well as I hard coded it in the client setup and still does not work. Not too sure.
UPDATE 23rd January
OK, I think it is a time issue. I used https://developers.google.com/+/photohunt/android and base my design on the BaseActivity in the Photohunt using the AuthUtil, and I get invalid grant on my server. How do I move the time back on my server in code. I read somewhere I can do time() - 10 somewhere but not sure where...
It sounds like you may be sending the same authorization code multiple times. On Android GoogleAuthUtil.getToken() caches any tokens that it retrieves including authorization codes.
If you ask for a second code without invalidating the previous code, GoogleAuthUtil will return the same code. When you try to exchange a code on your server which has already been exchanged you get the invalid_grant error. My advice would be to invalidate the token immediately after you retrieve it (even if you fail to exchange the code, you are better off getting a new one than retrying with the old one).
code = GoogleAuthUtil.getToken(
OneTimeCodeActivity.this, // Context context
mPlusClient.getAccountName(), // String accountName
scopes, // String scope
appActivities // Bundle bundle
);
GoogleAuthUtil.invalidateToken(
OneTimeCodeActivity.this,
code
);
invalid_grant can be returned for other reasons, but my guess is that caching is causing your problem since you said it worked the first time.
This issue is now resolved. This was due to the implementation on the One Time Code exchange with the server
As specified in the my issue above, I used the photohunt example to do the exchange with my server. The Android code can be found on the below link
https://github.com/googleplus/gplus-photohunt-client-android/blob/master/src/com/google/plus/samples/photohunt/auth/AuthUtil.java
One line 44 it reads this
byte[] postBody = String.format(ACCESS_TOKEN_JSON, sAccessToken).getBytes();
This will only work if on the server side you handle the JSON. I did not.
When calling up $client->authenticate($code); in php, $code had a JSON string and therefore when calling https://accounts.google.com/o/oauth2/token the authorization code was wrong.
So it was easy as I was not sending the code in the right format.
I found this out when digging and testing https://accounts.google.com/o/oauth2/token and created a manual cURL to test the token.
As provided in the Google+ API it was stated that all examples included a One Time Code exchange, but I think the code across all platform are not consistent and one has to double check themselve to make sure everything flows correctly, which was my mistake.
I am writing an Android GMail client application.
When it creates a message, I add a header to it like this:
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(username));
msg.setSubject(subject);
msg.setText(message);
msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
long time = someTime;
msg.addHeader("My_Header", Long.toString(time));
//IMAPFolder f declaration & initialization
f.open(Folder.READ_WRITE);
f.addMessages(new Message[]{msg});
f.close(true);
It all works fine and I am able to see the header correctly added to the message when viewing my GMail account on my PC. However, when I later try to retrieve the header information, it gets very weird.
When I call
String[] str = msg.getHeader("My_Header");
getHeader() returns null if I am running the app. However, when I debug the app and set a breakpoint before the getHeader() call, it returns the header value corrently.
My source code:
MimeMessage msg = getNextMessage();
String subject = msg.getSubject();
InternetAddresses to[] = msg.getAllRecipients()
String when[] = msg.getHeader(GMailClient.TIME_TO_SEND);
if (when == null) {
Log.i(TAG, "Null Header");
} else {
long time = Long.parseLong(when[0]);
Log.i(TAG, "Value retrieved: " + when[0]);
}
Possibly Gmail isn't returning the header information correctly via IMAP? You might want to look at the protocol trace to see exactly what the server is returning for your request.
Also, try writing out the entire message using (e.g.)
msg.writeTo(new FileOutputStream("msg.txt"));
and see if the header is there. If it is, and the protocol trace shows that it's not being returned for the getHeader call, it's a bug in the server. In that case, see the JavaMail FAQ entry for how to work around such server bugs.