SendGrid not working in Google app engine endpoints - android

I need to send info to the google endpoint, which then sets up object with Sendgrid and then sends the email. The emails are not working, nothing is sent through from the app engine.
Part of my endpoint code:
#ApiMethod(name = "sendEmail")
public sendEmailObject sendEmail(#Named("sendTo") String sendTo, #Named("sentFromClient") String sentFromClient, #Named("sendDescription") String sendDescription) {
SendGrid sendgrid = new SendGrid(..., ...);
SendGrid.Email email = new SendGrid.Email();
email.addTo(..);
email.addToName(..);
email.setReplyTo(..);
email.setSubject(..);
email.setText(..);
email.setFrom(...);
sendEmailObject emailoObject = new sendEmailObject();
try {
SendGrid.Response response = sendgrid.send(email);
emailoObject.setSendMailSucccess(response.getMessage().toString());
} catch (SendGridException e) {
e.printStackTrace();
emailoObject.setSendMailSucccess(e.toString());
}
Is there something I need to set on the app engine? Like opening a port or some other settings? Sendgrid seems to use port 5252, but have no idea where to allow that port, or if its automatically done?
I also used a different email when registering for Sendgrid, than App engine, could this cause a problem?

The problem was that when creating an Sendgrid object I used username and password. When I changed that to the key generated on sendgrid it worked!!!
SendGrid sendgrid = new SendGrid("key");

Related

Servicestack hosting on subdomain and authenticating from main domain

I am creating one web app in asp.net MVC with identity (OWIN)
framework. Now it will be hosted in one domain lets say domain.com
Now i want to host servicestack on sub domain lets say
service.domain.com
Now any user who login in domain.com with username and password and if
it success then i want to authenticate servicestack too so that all
services with [Authenticate] attribute will work.
The primary objective of hosting servicestack on subdomain is to make
code independent for database side.
And i can easily call this REST api in my future Android and iOS app.
Is it something wrong i am doing?
I have tried with code provided by mythz but now i get this error
AuthKey required to use: HS256
My MVC code is (running on: localhost:51055)
var result = await SignInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, shouldLockout: false);
switch (result)
{
case SignInStatus.Success:
{
var jwtProvider = new JwtAuthProvider();
var header = JwtAuthProvider.CreateJwtHeader(jwtProvider.HashAlgorithm);
var body = JwtAuthProvider.CreateJwtPayload(new AuthUserSession
{
UserAuthId = user.Id,
DisplayName = user.NameSurname,
Email = user.Email,
IsAuthenticated = true,
},
issuer: jwtProvider.Issuer,
expireIn: jwtProvider.ExpireTokensIn,
audience: jwtProvider.Audience,
roles: new[] { "TheRole" },
permissions: new[] { "ThePermission" });
var jwtToken = JwtAuthProvider.CreateJwt(header, body, jwtProvider.GetHashAlgorithm());
var client = new JsonServiceClient("http://localhost:52893/");
client.SetTokenCookie(jwtToken);
}
}
error occured on this statement jwtProvider.GetHashAlgorithm()
Any my servicestack code is (running on: localhost:52893)
public class AppHost : AppHostBase
{
public AppHost() : base("MVC 4", typeof(HelloService).Assembly) { }
public override void Configure(Funq.Container container)
{
SetConfig(new HostConfig
{
RestrictAllCookiesToDomain = "localhost",
HandlerFactoryPath = "api",
DebugMode = true
});
Plugins.Add(new AuthFeature(() => new AuthUserSession(),
new IAuthProvider[] {
new JwtAuthProviderReader(AppSettings) {
AuthKey = AesUtils.CreateKey(),
HashAlgorithm = "RS256"
},
}));
Plugins.Add(new CorsFeature(
allowOriginWhitelist: new[] {
"http://localhost",
"http://localhost:51055"
},
allowCredentials: true,
allowedMethods: "GET, POST, PUT, DELETE, OPTIONS",
allowedHeaders: "Content-Type, Allow, Authorization, Wait, Accept, X-Requested-With, Put-Default-Position, Put-Before, If-Match, If-None-Match, Content-Range",
exposeHeaders: "Content-Range"
));
}
}
Is something wrong i am doing?
You're looking to integrate 2 different frameworks together by using Authentication from MVC (OWIN) with ServiceStack - an isolated framework that doesn't have any coupling or knowledge of OWIN or MVC's Authentication. This is further conflated by trying to transfer Authentication from one domain into a different framework on a different sub domain. Usually trying to try integrate Authentication between completely different frameworks is a difficult endeavor and requiring it to work across sub-domains adds even more complexity.
Storing an Authenticate User Session
With that said the 2 easiest solutions that can work is to store an authenticated UserSession in ServiceStack by serializing an AuthUserSession into the location which ServiceStack expects by using the same distributed Caching Provider configured on both MVC and ServiceStack Apps.
So you can configure ServiceStack to use a Redis CacheClient you can create and store a UserSession in MVC:
var session = new AuthUserSession {
UserAuthId = userId,
DisplayName = userName,
Email = userEmail,
IsAuthenticated = true,
};
Then save it using the configured Redis Manager in MVC:
var sessionId = SessionExtensions.CreateRandomSessionId();
using (var redis = redisManager.GetClient())
{
redis.Set($"urn:iauthsession:{sessionId}", session);
}
To get ServiceStack to use this Authenticated UserSession you need to configure the ss-id Session Cookie Id with sessionId and since you want the client to send the same Cookie to sub-domain you need to configure the Cookie to use a wildcard domain.
Using JWT
The alternative (and my preferred solution) that doesn't require sharing any infrastructure dependencies is to use a stateless JWT Token which encapsulates the Users Session in a JWT Token. To do this in MVC you would create a JWT Token from an Authenticated User Session which you can send to a ServiceStack AppHost configured with the same JwtAuthProvider.
Clients can then make Authenticated Requests by sending JWT Tokens in the JWT Cookie, i.e. sending the JWT Token in the ss-tok cookie which to work across sub-domains needs to be configured to use the same wildcard domain as above.

GoogleTokenResponse does not contain ID token, intermittently

Intermittently, GoogleTokenResponse.parseIdToken() has an NullPointerExpection because the token response does not contain an ID token. Without changing any code, sometimes there is an ID token, and sometimes there isn't. Note that GoogleTokenResponse.getAccessToken() always works.
With no change to any code whatsoever, the ID token will be missing from one minute to the next, even if the access token is always available.
How can I debug this? Where to look?
I get the server auth code using this in an Android client using Google Play Games API:
PendingResult<Games.GetServerAuthCodeResult> pendingResult =
Games.getGamesServerAuthCode(mGoogleApiClient, Constants.web_client_ID);
pendingResult.setResultCallback(new ResultCallback<Games.GetServerAuthCodeResult>() {
#Override
public void onResult(Games.GetServerAuthCodeResult getTokenResult) {
sendToServer(getTokenResult.getCode());
}
});
On the server side (Google Cloud Endpoints), I exchange the code for a token using this code:
try {
tokenResponse = new GoogleAuthorizationCodeTokenRequest(
transport,mJFactory,
"https://www.googleapis.com/oauth2/v4/token",
web_client_ID,web_client_secret,
authCode,
"")
.execute();
} ...
String accessToken = tokenResponse.getAccessToken();
GoogleIdToken idToken = null;
try {
idToken = tokenResponse.parseIdToken(); //-- FAILES HERE INTERMITTENTLY!!!!
} ...
Since it seems that Play Games Services does not guarantee an ID token using Games.getGamesServerAuthCode one should follow the directions in this post and get the ID token as it recommends:
Once you have the access token, you can now call
www.googleapis.com/games/v1/applications//verify/ using that
access token. Pass the auth token in a header as follows:
“Authorization: OAuth ” The response value will contain
the player ID for the user.
See this for a full example.

Cookies not working on mobile browsers (using ASP.NET MVC )

I have an ASP.NET C# MVC4 Web site that I have working wonderfully for the most part. However, when we tested on mobile, the cookies that I am using for authentication would not work. I set the Auth cookie in my controller action but when trying to access them on the next call they are not there. Once again this is ONLY A PROBLEM ON MOBILE. Works fine in desktop versions of IE, Chrome and Firefox. Does not work with Chrome on Android.
Code to write cookie (in controller action):
//Set information into object that can be read out of the cookie later
FormsAuthModel UserDataObj = new FormsAuthModel
{
UserID = dmUser.ID,
PasswordChange = dmUser.PasswordChange
};
string UserData = Convert.ToBase64String(clsShared.Serialize(UserDataObj));
//Create the ticket
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, dmUser.UserName, DateTime.Now, DateTime.Now.AddDays(1), false, UserData, FormsAuthentication.FormsCookiePath);
// Encrypt the ticket
string encTicket = FormsAuthentication.Encrypt(ticket);
// Create the cookie
HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
System.Web.HttpContext.Current.Response.Cookies.Add(cookie);
Code to read cookie (in Global.asax.cs - Application_PostAuthenticateRequest):
HttpCookie authCookie = HttpContext.Current.Request.Cookies[FormsAuthentication.FormsCookieName];
if (authCookie != null)
{
try
{
FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);
UserDataObj = (FormsAuthModel)clsShared.Deserialize(Convert.FromBase64String(authTicket.UserData), typeof(FormsAuthModel));
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
//WriteEvent(string.Format("Error deserializing auth ticket - {0}", ex.Message), EventLogEntryType.Error);
}
}
The AuthCookie is always null on the subsequent requests. What the user sees is a login screen, they fill it out and they get redirected right back to the login screen.
I could not find anything in my searches that helped explain why all the mobile requests (my phone, my tablet and other users' phones) would act differently than the desktop browsers.
Any help would be greatly appreciated.
Thanks!!
OK I found a solution although I am not sure why. I changed the cookie creation code as follows and it worked.
//Set information into object that can be read out of the cookie later
FormsAuthModel UserDataObj = new FormsAuthModel
{
UserID = dmUser.ID,
PasswordChange = dmUser.PasswordChange
};
string UserData = Convert.ToBase64String(clsShared.Serialize(UserDataObj));
//Create the ticket
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, dmUser.UserName, DateTime.Now, DateTime.Now.AddDays(1), false, UserData, FormsAuthentication.FormsCookiePath);
// Encrypt the ticket
string encTicket = FormsAuthentication.Encrypt(ticket);
// Create the cookie - FIX IS HERE!!!
Response.Cookies[FormsAuthentication.FormsCookieName].Value = encTicket;
//HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
//Response.Cookies.Add(cookie);
Notice that the only change is in adding the cookie by setting the value directly instead of creating a cookie object and adding that to the collection.
i.e. - Response.Cookies["Name"] = Value;
I got the idea from this MS article: https://msdn.microsoft.com/en-us/library/ms178194.aspx.
So does anyone know why this would make a difference? I have used the cookie instance method several times before and never had this problem.

Google Play Android Developer API from C#/.NET service - (400) Bad Request

I'm trying to access a Purchase Status API from my ASP.NET web server using Google APIs .NET Client Library which is a recommended way for using Purchase API v1.1. However, the Authorization page of this API suggests direct web requests to Google's OAuth2 pages instead of using the corresponding client libraries.
OK, I tried both methods with all variations I could imagine and both of them lead to "The remote server returned an error: (400) Bad Request.".
Now what I've done to get to my point. First I've made all steps 1-8 under the Creating an APIs Console project of the Authorization page. Next I generated a refresh token as described there. During refresh token generation I chose the same Google account as I used to publish my Android application (which is in published beta state now).
Next I've created a console C# application for test purposes in Visual Studio (may be console app is the problem?)
and tried to call the Purchase API using this code (found in some Google API examples):
private static void Main(string[] args)
{
var provider =
new WebServerClient(GoogleAuthenticationServer.Description)
{
ClientIdentifier = "91....751.apps.googleusercontent.com",
ClientSecret = "wRT0Kf_b....ow"
};
var auth = new OAuth2Authenticator<WebServerClient>(
provider, GetAuthorization);
var service = new AndroidPublisherService(
new BaseClientService.Initializer()
{
Authenticator = auth,
ApplicationName = APP_NAME
});
var request = service.Inapppurchases.Get(
PACKAGE_NAME, PRODUCT_ID, PURCHASE_TOKEN);
var purchaseState = request.Execute();
Console.WriteLine(JsonConvert.SerializeObject(purchaseState));
}
private static IAuthorizationState GetAuthorization(WebServerClient client)
{
IAuthorizationState state =
new AuthorizationState(
new[] {"https://www.googleapis.com/auth/androidpublisher"})
{
RefreshToken = "4/lWX1B3nU0_Ya....gAI"
};
// below is my redirect URI which I used to get a refresh token
// I tried with and without this statement
state.Callback = new Uri("https://XXXXX.com/oauth2callback/");
client.RefreshToken(state); // <-- Here we have (400) Bad request
return state;
}
Then I tried this code to get the access token (I found it here: Google Calendar API - Bad Request (400) Trying To Swap Code For Access Token):
public static string GetAccessToken()
{
var request = WebRequest.Create(
"https://accounts.google.com/o/oauth2/token");
request.Method = "POST";
var postData =
string.Format(
#"code={0}&client_id={1}&client_secret={2}&redirect_uri={3}&grant_type=authorization_code",
// refresh token I got from browser
// also tried with Url encoded value
// 4%2FlWX1B3nU0_Yax....gAI
"4/lWX1B3nU0_Yax....gAI",
// ClientID from Google APIs Console
"919....1.apps.googleusercontent.com",
// Client secret from Google APIs Console
"wRT0Kf_bE....w",
// redirect URI from Google APIs Console
// also tried Url encoded value
// https%3A%2F%2FXXXXX.com%2Foauth2callback%2F
"https://XXXXX.com/oauth2callback/");
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = byteArray.Length;
using (var dataStream = request.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
}
try
{
// request.GetResponse() --> (400) Bad request again!
using (var response = request.GetResponse())
{
using (var dataStream = response.GetResponseStream())
{
using (var reader = new StreamReader(dataStream))
{
var responseFromServer = reader.ReadToEnd();
var jsonResponse = JsonConvert.DeserializeObject<OAuth2Response>(responseFromServer);
return jsonResponse.access_token;
}
}
}
}
catch (Exception ex) { var x = ex; }
return null;
}
So, to sum up all my long story:
Is it possible at all to pass OAuth2 authorization using either of methods above from a C# Console Application (without user interaction)?
I've double checked the redirect URI (since I saw a lot of discussed troubles because of it here on stackoverflow) and other parameters like ClientID and ClientSecret. What else I could do wrong in the code above?
Do I need to URL encode a slash in the refresh token (I saw that the first method using client library does it)?
What is the recommended way of achieving my final goal (Purchase API access from ASP.NET web server)?
I'll try to answer your last question. If you access your own data account, you dont need to use client id in oAuth2. Let's use service account to access Google Play API.
Create a service account in Google Developer Console > Your project > APIs and auth > Credentials > Create a new key. You will download a p12 key.
Create a C# project. You can choose console application.
Install google play api library from Google.Apis.androidpublisher. Nuget. You can find other library for dotnet in Google APIs Client Library for .NET
Link google api project with your google play account in API access
Authenticate and try to query information. I'll try with listing all inapp item. You can just change to get purchase's status
String serviceAccountEmail = "your-mail-in-developer-console#developer.gserviceaccount.com";
var certificate = new X509Certificate2(#"physical-path-to-your-key\key.p12", "notasecret", X509KeyStorageFlags.Exportable);
ServiceAccountCredential credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(serviceAccountEmail)
{
Scopes = new[] { "https://www.googleapis.com/auth/androidpublisher" }
}.FromCertificate(certificate));
var service = new AndroidPublisherService(
new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "GooglePlay API Sample",
});
// try catch this function because if you input wrong params ( wrong token) google will return error.
var request = service.Inappproducts.List("your-package-name");
var purchaseState = request.Execute();
// var request = service.Purchases.Products.Get(
//"your-package-name", "your-inapp-item-id", "purchase-token"); get purchase'status
Console.WriteLine(JsonConvert.SerializeObject(purchaseState));
You should do the following in your
private static IAuthorizationState GetAuthorization(WebServerClient client) method:
private IAuthorizationState GetAuthorization(WebServerClient client)
{
IAuthorizationState state = AuthState;
if (state != null)
{
return state;
}
state = new AuthorizationState()
{
RefreshToken = "4/lWX1B3nU0_Ya....gAI",
Callback = new Uri(#"https://XXXXX.com/oauth2callback/")
};
client.RefreshToken(state);
// Store and return the credentials.
HttpContext.Current.Session["AUTH_STATE"] = _state = state;
return state;
}
Let me know if it works for you.
Be aware that we know that the whole OAuth2 flow is awkward today, and we are working to improve it.

How to send a tweet with jTwitter on Android?

Has anyone ever successfully sent a tweet via jTwitter on Android?
I am stuck with the Authentification. I can successfully redirect the user to twitter, authorize my app and redirect to my app with new OAuthSignpostClient(CONSUMER_KEY, CONSUMER_SECRET, CALLBACK_URL). Then I store the oauth_token and oauth_verifier which are given with the Callback URL and try to use the OAuthSignpostClient again to update a state:
OAuthSignpostClient client = new OAuthSignpostClient(TwitterOAuthActivity.CONSUMER_KEY, TwitterOAuthActivity.CONSUMER_SECRET, accessToken, accessTokenSecret);
// Ready to go!
Twitter twitter = new Twitter(null, client);
CharSequence date = DateFormat.format("dd.MM.yyyy # hh:mm:ss", new Date());
twitter.updateStatus("Yay. It works! " + date);
Which ends in a TwitterException without a caused by:
05-11 12:24:32.643: E/AndroidRuntime(25897): winterwell.jtwitter.TwitterException$E401: Could not authenticate with OAuth.
05-11 12:24:32.643: E/AndroidRuntime(25897): http://api.twitter.com/1/statuses/update.json (anonymous)
05-11 12:24:32.643: E/AndroidRuntime(25897): at winterwell.jtwitter.URLConnectionHttpClient.processError(URLConnectionHttpClient.java:425)
05-11 12:24:32.643: E/AndroidRuntime(25897): at winterwell.jtwitter.OAuthSignpostClient.post2_connect(OAuthSignpostClient.java:345)
Does anyone has an idea where my Problem is?
The verifier from the callback url is a temporary key. It let's you unlock the OAuthSignpostClient object that you have. You can't use it to construct a new OAuthSignpostClient.
You need to call:
client.setAuthorizationCode(verifier);
// The client can now be used!
// To use it again, without the oauth dance, store _these_ tokens:
String[] tokens = client.getAccessToken();
You may also want to check out the new AndroidTwitterLogin class which makes things easy:
AndroidTwitterLogin atl = new AndroidTwitterLogin(myApp,
MY_TWITTER_KEY,MY_TWITTER_SECRET,MY_TWITTER_CALLBACK) {
protected void onSuccess(Twitter jtwitter, String[] tokens) {
jtwitter.setStatus("I can now post to Twitter!");
// Recommended: store tokens in your app for future use
// with the constructor OAuthSignpostClient(String consumerKey, String consumerSecret, String accessToken, String accessTokenSecret)
}
};
atl.run();

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