我正在构建一个OAuth2授权服务器,如下例所示:https://docs.microsoft.com/en-us/aspnet/aspnet/overview/owin-and-katana/owin-oauth-20-authorization-server
我有一个授权码,正在尝试将其换成访问令牌。无论如何,我得到400响应“invalid_grant”。
这是我的相关服务器实现:
OAuthAuthorizationServerOptions serverOptions = new OAuthAuthorizationServerOptions()
{
AuthorizeEndpointPath = new PathString(authorizePath),
TokenEndpointPath = new PathString(tokenPath),
ApplicationCanDisplayErrors = true,
AllowInsecureHttp = true, // tsk tsk
Provider = new OAuthAuthorizationServerProvider
{
//OnValidateAuthorizeRequest = ValidateAuth,
OnValidateClientRedirectUri = ValidateClientRedirectUri,
OnValidateClientAuthentication = ValidateClientAuthentication,
OnGrantResourceOwnerCredentials = GrantResourceOwnerCredentials,
OnGrantClientCredentials = GrantClientCredetails
},
// Authorization code provider which creates and receives authorization code
AuthorizationCodeProvider = new AuthenticationTokenProvider
{
OnCreate = CreateAuthenticationCode,
OnReceive = ReceiveAuthenticationCode
},
// Refresh token provider which creates and receives referesh token
RefreshTokenProvider = new AuthenticationTokenProvider
{
OnCreate = CreateRefreshToken,
OnReceive = ReceiveRefreshToken,
}
};
app.UseOAuthAuthorizationServer(serverOptions);
private Task ValidateClientRedirectUri(OAuthValidateClientRedirectUriContext context)
{
context.Validated(context.RedirectUri);
return Task.FromResult(0);
}
private Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
{
string clientId;
string clientSecret;
if (context.TryGetBasicCredentials(out clientId, out clientSecret) ||
context.TryGetFormCredentials(out clientId, out clientSecret))
{
context.Validated();
}
return Task.FromResult(0);
}
private readonly ConcurrentDictionary<string, string> _authenticationCodes =
new ConcurrentDictionary<string, string>(StringComparer.Ordinal);
private void CreateAuthenticationCode(AuthenticationTokenCreateContext context)
{
context.SetToken(Guid.NewGuid().ToString("n") + Guid.NewGuid().ToString("n"));
_authenticationCodes[context.Token] = context.SerializeTicket();
}
private void ReceiveAuthenticationCode(AuthenticationTokenReceiveContext context)
{
string value;
if (_authenticationCodes.TryRemove(context.Token, out value))
{
context.DeserializeTicket(value);
}
context.DeserializeTicket(value);
}
private void CreateRefreshToken(AuthenticationTokenCreateContext context)
{
context.SetToken(context.SerializeTicket());
}
private void ReceiveRefreshToken(AuthenticationTokenReceiveContext context)
{
context.DeserializeTicket(context.Token);
}
这是我在客户端请求令牌的地方:
var requestPrefix = Request.Scheme + "://" + Request.Host;
var redirectUri = requestPrefix + Request.PathBase + Options.CallbackPath + "/";
var body = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>("grant_type", "authorization_code"),
new KeyValuePair<string, string>("code", code),
new KeyValuePair<string, string>("redirect_uri", redirectUri),
new KeyValuePair<string, string>("client_id", Options.ClientId),
new KeyValuePair<string, string>("client_secret", Options.ClientSecret),
};
HttpClient _httpClient = new HttpClient();
var tokenResponse =
await _httpClient.PostAsync(Constants.GARBAGE_TOKEN, new FormUrlEncodedContent(body));
var text = await tokenResponse.Content.ReadAsStringAsync();
到目前为止我测试了什么:
但在那之后 - 我忘记了它。它回到调用客户端作为“invalid_grant”,我正在试着找出下一个令牌在管道中的位置。据推测,正在调用某些提供程序元素,由于某种原因将令牌设置为无效,但我一直在倾倒OAuthAuthorizationServerProvider源代码而我什么都没有,而且似乎没有任何方法可以逐步完成它。实际上,即使知道处理发送令牌的实际响应的代码部分也是有用的;这对我来说都是不透明的。
为什么令牌无效?它实际上是无效还是导致它返回invalid_grant的其他错误?我如何看待这一部分?
我还看了一下关于创建一个开始时链接的OAuth2服务器的microsoft doc示例,其中大部分是基于的。然而它没有用,因为它使用了这个封装所有内容的辅助方法:
var authorizationState = _webServerClient.ProcessUserAuthorization(Request);
所以这并没有告诉我多少,而且我也不确定上面的帮助程序是如何工作的,因为它似乎只能处理auth代码提交和令牌请求。
答案 0 :(得分:0)
请求访问令牌时尝试使用POST
请求。