/// <summary>Authenticates the current client and returns an access token.</summary>
/// <exception cref="Exception">Thrown when an exception error condition occurs.</exception>
/// <returns>The access token.</returns>
public virtual async Task<AccessTokenResponse> Authenticate()
{
// Get access token.
var accessTokenRequest = new AccessTokenRequest()
{
Scope = this.Settings.RedirectUri,
GrantType = "client_credentials"
};
var request = new HttpRequestMessage(HttpMethod.Post, "oauth/token")
{
Content = new FormUrlEncodedContent(accessTokenRequest.Properties)
};
request.Headers.Authorization = new BasicAuthenticationHeaderValue(this.Settings.ClientId, this.Settings.ClientSecret);
var response = await this.Client.SendAsync(request);
if (response.IsSuccessStatusCode)
{
return JsonConvert.DeserializeObject<AccessTokenResponse>(await response.Content.ReadAsStringAsync());
}
throw new Exception(string.Format("Unable to get access token for application {{ {0} }}.\r\n", accessTokenRequest), new HttpRequestException(await response.Content.ReadAsStringAsync()));
}
/// <summary>Authenticates the specified user and client and returns an access token.</summary>
/// <exception cref="Exception">Thrown when an exception error condition occurs.</exception>
/// <param name="userName">The username.</param>
/// <param name="password">The password.</param>
/// <returns>The access token.</returns>
public virtual async Task<AccessTokenResponse> Authenticate(string userName, string password)
{
// Get access token
var accessTokenRequest = new AccessTokenRequest()
{
Username = userName,
Password = password,
RedirectUri = this.Settings.RedirectUri,
GrantType = "password"
};
var accessTokenRequestMessage = new HttpRequestMessage(HttpMethod.Post, "oauth/token")
{
Content = new FormUrlEncodedContent(accessTokenRequest.Properties)
};
accessTokenRequestMessage.Headers.Authorization = new BasicAuthenticationHeaderValue(this.Settings.ClientId, this.Settings.ClientSecret);
var accessTokenResponseMessage = await this.Client.SendAsync(accessTokenRequestMessage);
if (accessTokenResponseMessage.IsSuccessStatusCode)
{
var accessTokenResponse = JsonConvert.DeserializeObject<AccessTokenResponse>(await accessTokenResponseMessage.Content.ReadAsStringAsync());
return accessTokenResponse;
}
throw new Exception(string.Format("Unable to get access token for user {{ {0} }}.\r\n", accessTokenRequestMessage), new HttpRequestException(await accessTokenResponseMessage.Content.ReadAsStringAsync()));
}
/// <summary>Re-authenticates by refreshing the access token.</summary>
/// <exception cref="Exception">Thrown when an exception error condition occurs.</exception>
/// <param name="refreshToken">The refresh token.</param>
/// <returns>The access token.</returns>
public virtual async Task<AccessTokenResponse> RefreshAuthentication(string refreshToken)
{
// Get access token
var accessTokenRequest = new AccessTokenRequest()
{
RefreshToken = refreshToken,
RedirectUri = this.Settings.RedirectUri,
GrantType = "refresh_token"
};
var request = new HttpRequestMessage(HttpMethod.Post, "oauth/token")
{
Content = new FormUrlEncodedContent(accessTokenRequest.Properties)
};
request.Headers.Authorization = new AuthenticationHeaderValue(
"Basic",
Convert.ToBase64String(
Encoding.UTF8.GetBytes(string.Format("{0}:{1}", this.Settings.ClientId, this.Settings.ClientSecret))));
var response = await this.Client.SendAsync(request);
if (response.IsSuccessStatusCode)
{
return JsonConvert.DeserializeObject<AccessTokenResponse>(await response.Content.ReadAsStringAsync());
}
throw new Exception("Unable to refresh access token", new HttpRequestException(await response.Content.ReadAsStringAsync()));
}