static private async Task api(string[] args)
{
UserCognitoCredentials credentials = getSavedCredentials();
if (credentials == null)
{
String password = GetPassword();
credentials = getCognitoCredentials(args[0], password).Result;
saveCredentials(credentials);
}
var signer = new AWS4RequestSigner(credentials.getAccessKey(), credentials.getSecretKey());
var request = new HttpRequestMessage {
Method = HttpMethod.Get,
RequestUri = new Uri("https://ats.api.alexa.com/api?Action=TopSites&Count=5&CountryCode=" + args[2] + "&ResponseGroup=Country")
};
request.Headers.Add("x-api-key", args[1]);
request.Headers.Add("x-amz-security-token", credentials.getSessionToken());
request = await signer.Sign(request, "execute-api", "us-east-1");
var client = new HttpClient();
var response = await client.SendAsync(request);
var responseStr = await response.Content.ReadAsStringAsync();
Console.WriteLine(responseStr);
}
static private void saveCredentials(UserCognitoCredentials credentials)
{
IFormatter formatter = new BinaryFormatter();
Stream stream = new FileStream(credentialsFile, FileMode.Create, FileAccess.Write);
formatter.Serialize(stream, credentials);
stream.Close();
}
static private async Task <UserCognitoCredentials> getCognitoCredentials(String userEmail, String userPassword)
{
String cognitoUserPoolId = "us-east-1_n8TiZp7tu";
String cognitoClientId = "6clvd0v40jggbaa5qid2h6hkqf";
String cognitoIdentityPoolId = "us-east-1:bff024bb-06d0-4b04-9e5d-eb34ed07f884";
Amazon.RegionEndpoint cognitoRegion = Amazon.RegionEndpoint.USEast1;
AmazonCognitoIdentityProviderClient provider =
new AmazonCognitoIdentityProviderClient(new Amazon.Runtime.AnonymousAWSCredentials(), Amazon.RegionEndpoint.USEast1);
CognitoUserPool userPool = new CognitoUserPool(cognitoUserPoolId, cognitoClientId, provider);
CognitoUser user = new CognitoUser(userEmail, cognitoClientId, userPool, provider);
AuthFlowResponse context = await user.StartWithSrpAuthAsync(new InitiateSrpAuthRequest()
{
Password = userPassword
}).ConfigureAwait(false);
String accessToken = context.AuthenticationResult.AccessToken;
String idToken = context.AuthenticationResult.IdToken;
CognitoAWSCredentials credentials =
user.GetCognitoAWSCredentials(cognitoIdentityPoolId, cognitoRegion);
var identityClient = new AmazonCognitoIdentityClient(credentials, cognitoRegion);
var idRequest = new Amazon.CognitoIdentity.Model.GetIdRequest();
idRequest.IdentityPoolId = cognitoIdentityPoolId;
idRequest.Logins = new Dictionary <string, string> {
{ "cognito-idp.us-east-1.amazonaws.com/" + cognitoUserPoolId, idToken }
};
var idResponseId = await identityClient.GetIdAsync(idRequest).ConfigureAwait(false);
if (idResponseId.HttpStatusCode != System.Net.HttpStatusCode.OK)
{
Console.WriteLine(String.Format("Failed to get credentials for identity. Status code: {0} ", idResponseId.HttpStatusCode));
System.Environment.Exit(1);
}
var idResponseCredential = await identityClient.GetCredentialsForIdentityAsync(idResponseId.IdentityId, new Dictionary <string, string> {
{ "cognito-idp.us-east-1.amazonaws.com/" + cognitoUserPoolId, idToken }
}).ConfigureAwait(false);
if (idResponseCredential.HttpStatusCode != System.Net.HttpStatusCode.OK)
{
Console.WriteLine(String.Format("Failed to get credentials for identity. Status code: {0} ", idResponseCredential.HttpStatusCode));
System.Environment.Exit(1);
}
var cognitoCredentials = new UserCognitoCredentials(idResponseCredential.Credentials);
return(cognitoCredentials);
}
static private UserCognitoCredentials getSavedCredentials()
{
UserCognitoCredentials credentials = null;
try {
IFormatter formatter = new BinaryFormatter();
Stream stream = new FileStream(credentialsFile, FileMode.Open, FileAccess.Read);
credentials = (UserCognitoCredentials)formatter.Deserialize(stream);
if (DateTime.UtcNow > credentials.getExpiration())
{
Console.WriteLine(String.Format("Saved credentials expired ({0} older than {1})", credentials.getExpiration(), DateTime.UtcNow));
credentials = null;
}
else
{
Console.WriteLine(String.Format("Using saved credentials. Valid until {0}", credentials.getExpiration()));
}
} catch (IOException) {
credentials = null;
}
return(credentials);
}