/*
* @description Authenticates the user with Salesforce via a connected OAuth application.
*
* @param username The user's Salesforce username.
* @param password The user's Salesforce password
*
* @throws SalesforceConfigurationException if client is not properly configured
* @throws SalesforceApiException if authentication request fails (possible reasons: network, credentials...)
*/
public IEnumerator login(string username, string password)
{
// Check configuration
assertConfigurationIsValid(username, password);
// Check if Auth Token is already set
if (isUserLoggedIn())
{
yield return(true);
}
// Configure query
WWWForm form = new WWWForm();
form.AddField("username", username);
form.AddField("password", password);
form.AddField("client_secret", consumerSecret);
form.AddField("client_id", consumerKey);
form.AddField("grant_type", "password");
WWW www = new WWW(oAuthEndpoint, form);
// Execute query & wait for result
yield return(www);
// Check query result for errors
if (www.error == null)
{
logHttpResponseSuccess(www, "GET");
JSONObject obj = JSONObject.Parse(www.text);
string token = obj.GetString("access_token");
string instanceUrl = obj.GetString("instance_url");
connection = new SalesforceConnection(token, instanceUrl, apiVersion);
yield return(true);
}
else
{
logHttpResponseError(www, "GET");
JSONObject errorDetails = JSONObject.Parse(www.text);
if (errorDetails != null)
{
string error = errorDetails.GetString("error");
string errorDescription = errorDetails.GetString("error_description");
if (error == "invalid_client_id" || error == "invalid_client")
{
throw new SalesforceConfigurationException("Salesforce authentication error due to invalid configuration: " + errorDescription);
}
else if (error == "invalid_grant")
{
throw new SalesforceAuthenticationException("Salesforce authentication error due to invalid user credentials: " + errorDescription);
}
else
{
throw new SalesforceApiException("Salesforce authentication error: " + errorDescription);
}
}
throw new SalesforceApiException("Salesforce authentication error: " + www.error.ToString());
}
}
/**
* Allows to resume an already open connection and save time by not logging in again.
*/
public void setConnection(SalesforceConnection connection)
{
this.connection = connection;
}
