private async System.Threading.Tasks.Task RenewAccessTokenAsync()
{
ServiceResponse sr = new ServiceResponse();
await HttpMethods.CallApiAuthAsync(sr, accessUri, grant, headers);
accessTokenInfo = Newtonsoft.Json.JsonConvert.DeserializeObject <AccessTokenInfo>(sr.ResponseString); // warning: thread unsafe
Log.WriteLine("Renewed token:" + accessTokenInfo.access_token);
}
public override async System.Threading.Tasks.Task <CallServiceResponse <IGenericServiceResponse> > CallServiceAsync(byte[] audioBytes, System.Collections.Generic.Dictionary <string, string> apiArgs)
{
int sampleRate = int.Parse(apiArgs["sampleRate"]);
Log.WriteLine("audio file length:" + audioBytes.Length + " sampleRate:" + sampleRate);
CallServiceResponse <IGenericServiceResponse> response = new CallServiceResponse <IGenericServiceResponse>(service);
response.Request = Array.Find(service.requests, p => p.argType == "binary");
await HttpMethods.CallApiAsync(response, null, null, null, audioBytes, apiArgs);
string JobID = response.ResponseJToken.SelectToken(".jobID").ToString();
Dictionary <string, string> dict = Helpers.stringToDictionary(service.requests[0].data.value, '&', '=');
string ApiKey = dict["apikey"];
// TODO: move url to settings file
string JobUrl = $"https://api.havenondemand.com/1/job/result/{JobID}?apikey={ApiKey}"; // using C# 6.0 string interpolation
await HttpMethods.CallApiAuthAsync(response, new Uri(JobUrl), "", null);
await HttpMethods.ExtractResultAsync(response);
return(response);
}
public async System.Threading.Tasks.Task <AccessTokenInfo> PerformAuthenticationAsync(Settings.Request request, Settings.Header h)
{
Settings.BearerAuthentication bearer = h.BearerAuthentication;
if (request == null || h == null)
{
throw new Exception("request/h is null");
}
if (h.OcpApimSubscriptionKey != null) // ClarifAi, OcpApimSubscriptionKey
{
Settings.BearerAuthentication BearerAuth = h.BearerAuthentication;
Uri accessUri = new Uri(BearerAuth.uri);
// todo: this only works for Microsoft APIs. Make code conditional on Microsoft? Break out as separate API to be execute first? Change headers in json file?
headers = new System.Collections.Generic.List <Tuple <string, string> >()
{
new Tuple <string, string>("Content-Type", "application/x-www-form-urlencoded"),
new Tuple <string, string>("Ocp-Apim-Subscription-Key", h.OcpApimSubscriptionKey) // TODO: need dictionary lookup instead of hardcoding
};
ServiceResponse sr = new ServiceResponse();
HttpMethods.CallApiAuthAsync(sr, accessUri, "", headers).Wait();
accessTokenInfo = new AccessTokenInfo();
accessTokenInfo.access_token = sr.ResponseString;
}
else if (h.BearerAuthentication.clientID != null && h.BearerAuthentication.clientSecret != null) // Microsoft
{
string clientID = bearer.clientID;
string clientSecret = bearer.clientSecret;
//string scope = bearer.scope;
this.request = request;
System.Collections.Generic.List <Tuple <string, string> > grantSubstitutes = new System.Collections.Generic.List <Tuple <string, string> >()
{
new Tuple <string, string>("{clientID}", System.Web.HttpUtility.UrlEncode(clientID)),
new Tuple <string, string>("{clientSecret}", System.Web.HttpUtility.UrlEncode(clientSecret)),
//new Tuple<string, string>("{scope}", System.Web.HttpUtility.UrlEncode(scope)),
};
grant = bearer.grant;
foreach (Tuple <string, string> r in grantSubstitutes)
{
grant = grant.Replace(r.Item1, r.Item2);
}
accessUri = new Uri(bearer.uri);
headers = new System.Collections.Generic.List <Tuple <string, string> >()
{
new Tuple <string, string>("Content-Type", "application/x-www-form-urlencoded")
};
ServiceResponse sr = new ServiceResponse();
await HttpMethods.CallApiAuthAsync(sr, accessUri, grant, headers);
accessTokenInfo = Newtonsoft.Json.JsonConvert.DeserializeObject <AccessTokenInfo>(sr.ResponseString);
// renew the token every specfied minutes
accessTokenRenewer = new System.Threading.Timer(new System.Threading.TimerCallback(OnTokenExpiredCallbackAsync),
this,
TimeSpan.FromMinutes(RefreshTokenDuration),
TimeSpan.FromMilliseconds(-1));
}
else if (h.BearerAuthentication.bearer != null) // Wit.Ai
{
accessTokenInfo.access_token = h.BearerAuthentication.bearer;
}
else
{
throw new Exception("Unknown Bearer Authentication");
}
return(accessTokenInfo);
}