private void RenewAccessToken()
{
AccessTokenInfo newAccessToken = PostHttp(AccessUri, this.requestBody);
//swap the new token with old one
//Note: the swap is thread unsafe
this.token = newAccessToken;
Console.WriteLine(string.Format("Renewed token for user: {0} is: {1}",
this.clientId,
this.token.access_token));
}
public Authentication(string clientId, string clientSecret)
{
this.clientId = clientId;
this.clientSecret = clientSecret;
// If clientid or client secret has special characters, encode before sending request
this.requestBody = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope={2}",
HttpUtility.UrlEncode(clientId),
HttpUtility.UrlEncode(clientSecret),
HttpUtility.UrlEncode("https://speech.platform.bing.com"));
this.token = PostHttp(AccessUri, this.requestBody);
// renew the token every specfied minutes
accessTokenRenewer = new Timer(new TimerCallback(OnTokenExpiredCallback),
this,
TimeSpan.FromMinutes(RefreshTokenDuration),
TimeSpan.FromMilliseconds(-1));
}
private AccessTokenInfo PostHttp(string accessUri, string requestDetails)
{
//Prepare OAuth request
WebRequest webRequest = WebRequest.Create(accessUri);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = "POST";
byte[] bytes = Encoding.ASCII.GetBytes(requestDetails);
webRequest.ContentLength = bytes.Length;
using (Stream outputStream = webRequest.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
using (WebResponse webResponse = webRequest.GetResponse())
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(AccessTokenInfo));
//Get deserialized object from JSON stream
AccessTokenInfo token = (AccessTokenInfo)serializer.ReadObject(webResponse.GetResponseStream());
return(token);
}
}
public static byte[] TtsAudioOutput(string lang, string voiceName, AudioFormat format, string text, float prosodyRate = 1.0f)
{
byte[] output = null;
AccessTokenInfo token = auth.GetAccessToken();
string accessToken = token.access_token;
string uri = "https://speech.platform.bing.com/synthesize";
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(uri);
string ImpressionGUID = Guid.NewGuid().ToString();
webRequest.ContentType = "application/ssml+xml";
webRequest.UserAgent = "QueuingMachine";
string formatName = (format == AudioFormat.Silk) ? "ssml-16khz-16bit-mono-silk" : "riff-16khz-16bit-mono-pcm";
webRequest.Headers.Add("X-MICROSOFT-OutputFormat", formatName);
webRequest.Headers.Add("X-Search-AppId", "07D3234E49CE426DAA29772419F436CA");
webRequest.Headers.Add("X-Search-ClientID", "1ECFAE91408841A480F00935DC390960");
webRequest.Headers.Add("Authorization", "Bearer " + token.access_token);
webRequest.Method = "POST";
string bodyTemplate = "<speak version=\"1.0\" xmlns=\"http://www.w3.org/2001/10/synthesis\" xmlns:mstts=\"http://www.w3.org/2001/mstts\" xmlns:emo=\"http://www.w3.org/2009/10/emotionml\" xml:lang=\"{0}\">{1}<emo:emotion><emo:category name=\"CALM\" value=\"1.0\"/><prosody rate=\"{2:F1}\">{3}</prosody></emo:emotion></voice></speak>";
string voiceTag = "<voice name=\"" + voiceName + "\">";
string deviceLanguage = lang;
string encodedXml = text.Replace("&", "&").Replace("<", "<").Replace(">", ">").Replace("\"", """).Replace("'", "'");
if (prosodyRate < 0.1f)
{
prosodyRate = 0.1f;
}
else if (prosodyRate > 2.0f)
{
prosodyRate = 2.0f;
}
string body = string.Format(bodyTemplate, deviceLanguage, voiceTag, prosodyRate, encodedXml);
byte[] bytes = Encoding.UTF8.GetBytes(body);
webRequest.ContentLength = bytes.Length;
using (Stream outputStream = webRequest.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
WebResponse webResponse = webRequest.GetResponse();
using (Stream stream = webResponse.GetResponseStream())
{
using (MemoryStream ms = new MemoryStream())
{
int count = 0;
do
{
byte[] buf = new byte[1024];
count = stream.Read(buf, 0, 1024);
ms.Write(buf, 0, count);
} while (stream.CanRead && count > 0);
output = ms.ToArray();
}
}
return(output);
}
public Authentication(string clientId, string clientSecret)
{
this.clientId = clientId;
this.clientSecret = clientSecret;
// If clientid or client secret has special characters, encode before sending request
this.requestBody = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope={2}",
HttpUtility.UrlEncode(clientId),
HttpUtility.UrlEncode(clientSecret),
HttpUtility.UrlEncode("https://speech.platform.bing.com"));
this.token = PostHttp(AccessUri, this.requestBody);
// renew the token every specfied minutes
accessTokenRenewer = new Timer(new TimerCallback(OnTokenExpiredCallback),
this,
TimeSpan.FromMinutes(RefreshTokenDuration),
TimeSpan.FromMilliseconds(-1));
}
private void RenewAccessToken()
{
AccessTokenInfo newAccessToken = PostHttp(AccessUri, this.requestBody);
//swap the new token with old one
//Note: the swap is thread unsafe
this.token = newAccessToken;
Console.WriteLine(string.Format("Renewed token for user: {0} is: {1}",
this.clientId,
this.token.access_token));
}