private Dictionary <string, string> GetHeaders(BasecampAuthorizationToken auth)
{
return(new Dictionary <string, string>
{
{ "Authorization", $"Bearer {auth.AccessToken}" },
{ "User-Agent", $"Fr8.co ({_contactEmail})" }
});
}
/// <summary>
/// Performs OAuth authentication after receiving verification code from Basecamp. Additionaly performs a check of whether use has access to Basecamp2 projects
/// </summary>
public async Task <AuthorizationTokenDTO> AuthenticateAsync(ExternalAuthenticationDTO externalState)
{
try
{
var query = HttpUtility.ParseQueryString(externalState.RequestQueryString);
var code = query["code"];
var state = query["state"];
var url = $"{_tokenUrl}?type=web_server&client_id={_clientId}&redirect_uri={HttpUtility.UrlEncode(_redirectUrl)}&client_secret={_clientSecret}&code={code}";
var response = await _restfulServiceClient.PostAsync <OAuthResponse>(new Uri(url)).ConfigureAwait(false);
var basecampAuthorizationDTO = new BasecampAuthorizationToken
{
AccessToken = response.AccessToken,
RefreshToken = response.RefreshToken,
};
//Retrieving info about username and project
var userInfo = await GetCurrentUserInfo(basecampAuthorizationDTO).ConfigureAwait(false);
if (userInfo.Accounts.TrueForAll(x => x.Product != Basecamp2Product))
{
Logger.GetLogger().Error($"Authorized user doesn't have access to Basecamp2. Fr8 User Id - {externalState.Fr8UserId}");
return(new AuthorizationTokenDTO {
Error = "We couldn't authorize you as your account doesn't have access to Basecamp2 product"
});
}
basecampAuthorizationDTO.ExpiresAt = userInfo.ExpiresAt;
return(new AuthorizationTokenDTO
{
ExternalAccountId = userInfo.Identity.Id.ToString(),
ExternalAccountName = userInfo.Identity.DisplayName,
ExternalStateToken = state,
ExpiresAt = basecampAuthorizationDTO.ExpiresAt,
Token = JsonConvert.SerializeObject(basecampAuthorizationDTO)
});
}
catch (Exception ex)
{
Logger.GetLogger().Error($"Failed to authorize with Basecamp. Fr8 User Id - {externalState.Fr8UserId}, Details - {ex}");
return(new AuthorizationTokenDTO {
Error = "An error occured while trying to authorize you. Please try again later"
});
}
}
private async Task <TResponse> ApiGetAsync <TResponse>(string apiUrl, BasecampAuthorizationToken auth)
{
return(await _restfulServiceClient.GetAsync <TResponse>(new Uri(apiUrl), headers : GetHeaders(auth)).ConfigureAwait(false));
}
private async Task <Authorization> GetCurrentUserInfo(BasecampAuthorizationToken auth)
{
return(await ApiGetAsync <Authorization>(_authorizationUrl, auth).ConfigureAwait(false));
}