//TODO: Generate ZohoOAuthTokens Class for GenerateAccessTokens Method();
//TODO: This method throws an exception;
public ZohoOAuthTokens GenerateAccessToken(string grantToken)
{
if (grantToken == null || grantToken.Length == 0)
{
//TODO: Throw an ZohoOAuthException;
Console.WriteLine("Null Grant Token");
}
//TODO: Inspect the usage of Contract;
Console.WriteLine("access token ok");
var conn = GetZohoConnector(ZohoOAuth.GetTokenURL());
conn.AddParam("grant_type", "authorization_code");
conn.AddParam("code", grantToken);
string response = conn.Post();
Console.WriteLine("Request posted");
Dictionary <string, string> responseJSON = JsonConvert.DeserializeObject <Dictionary <string, string> >(response);
if (responseJSON.ContainsKey("access_token"))
{
Console.WriteLine("Response contains Access Token");
ZohoOAuthTokens tokens = GetTokensFromJSON(responseJSON);
tokens.UserMaiilId = GetUserMailId(tokens.AccessToken);
ZohoOAuth.GetPersistenceHandlerInstance().SaveOAuthData(tokens);
//Console.WriteLine(CRM.Library.Common.ZCRMConfigUtil.GetAuthenticationClass());
return(tokens);
}
//TODO: Throw exceptions and remove the return statement and console statement;
Console.WriteLine("Exception fetching access tokens");
return(null);
}
//TODO: Create ZohoOAuthException class and change the throw exception class;
private ZohoOAuthTokens RefreshAccessToken(string refreshToken, string userMailId)
{
if (refreshToken == null)
{
throw new Exception("Refresh token is not provided");
}
try{
ZohoHTTPConnector conn = GetZohoConnector(ZohoOAuth.GetRefreshTokenURL());
conn.AddParam("grant_type", "refresh_token");
conn.AddParam("refresh_token", refreshToken);
string response = conn.Post();
Dictionary <string, string> responseJson = JsonConvert.DeserializeObject <Dictionary <string, string> >(response);
if (responseJson.ContainsKey("access_token"))
{
ZohoOAuthTokens tokens = GetTokensFromJSON(responseJson);
tokens.RefreshToken = refreshToken;
tokens.UserMaiilId = userMailId;
ZohoOAuth.GetPersistenceHandlerInstance().SaveOAuthData(tokens);
return(tokens);
}
throw new Exception("Exception while fetching access tokens from site");
}catch (Exception e) {
Console.WriteLine(e.Message);
throw;
}
}
//TODO: the method throws three exceptions and check for null exception on access_token.
private string GetUserMailId(string accessToken)
{
ZohoHTTPConnector conn = new ZohoHTTPConnector()
{
Url = ZohoOAuth.GetUserInfoURL()
};
conn.AddHeader("Authorization", ZohoOAuthConstants.AuthHeaderPrefix + accessToken);
string response = conn.Get();
JObject responseJSON = JObject.Parse(response);
return(responseJSON["Email"].ToString());
}
//TODO: Throw ZohoOAuthException ;
public string GetAccessToken(string userMailId)
{
IZohoPersistenceHandler persistenceHandler = ZohoOAuth.GetPersistenceHandlerInstance();
ZohoOAuthTokens tokens;
try{
Console.WriteLine("Getting tokens");
tokens = persistenceHandler.GetOAuthTokens(userMailId);
}catch (Exception e) {
Console.WriteLine("Exception while retrieving tokens from persistence " + e.Message);
throw;
}
try
{
return(tokens.AccessToken);
}catch (Exception e) {
Console.WriteLine(e.Message);
ZCRMLogger.LogInfo("Access Token expired, Refreshing Access token");
tokens = RefreshAccessToken(tokens.RefreshToken, userMailId);
}
return(tokens.AccessToken);
}
