public string CreateAuthorizationUrl()
{
var state = Guid.NewGuid();
authorizationRequests[state] = new AzdoToken()
{
IsPending = true
};
var uriBuilder = new UriBuilder(config.AuthUrl);
NameValueCollection queryParams = HttpUtility.ParseQueryString(uriBuilder.Query ?? string.Empty);
queryParams["client_id"] = config.ClientId;
queryParams["response_type"] = "Assertion";
queryParams["state"] = state.ToString();
queryParams["scope"] = config.Scope;
queryParams["redirect_uri"] = config.RedirectUri;
uriBuilder.Query = queryParams.ToString();
return(uriBuilder.ToString());
}
public async Task <AzdoToken> GetAccessToken(string code, Guid state)
{
if (ValidateCallbackValues(code, state.ToString(), out var error))
{
var form = new Dictionary <string, string>()
{
{ "client_assertion_type", "urn:ietf:params:oauth:client-assertion-type:jwt-bearer" },
{ "client_assertion", config.ClientSecret },
{ "grant_type", "urn:ietf:params:oauth:grant-type:jwt-bearer" },
{ "assertion", code },
{ "redirect_uri", config.RedirectUri }
};
HttpClient httpClient = clientFactory.CreateClient();
HttpResponseMessage responseMessage = await httpClient.PostAsync(
"https://app.vssps.visualstudio.com/oauth2/token" ?? config.TokenUrl,
new FormUrlEncodedContent(form)
);
if (responseMessage.IsSuccessStatusCode)
{
var body = await responseMessage.Content.ReadAsStringAsync();
AzdoToken tokenModel = authorizationRequests[state];
JsonConvert.PopulateObject(body, tokenModel);
return(tokenModel);
}
else
{
error = responseMessage.ReasonPhrase;
var content = await responseMessage.Content.ReadAsStringAsync();
throw new Exception(
$"{responseMessage.ReasonPhrase} {(string.IsNullOrEmpty(content) ? "" : $"({content})")}");
}
}