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-rw-r--r--src/DotNetOAuth/ServiceProvider.cs9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/DotNetOAuth/ServiceProvider.cs b/src/DotNetOAuth/ServiceProvider.cs
index 6b87079..a6ed9e0 100644
--- a/src/DotNetOAuth/ServiceProvider.cs
+++ b/src/DotNetOAuth/ServiceProvider.cs
@@ -6,6 +6,7 @@
namespace DotNetOAuth {
using System;
+ using System.Globalization;
using System.Web;
using DotNetOAuth.ChannelElements;
using DotNetOAuth.Messages;
@@ -127,6 +128,14 @@ namespace DotNetOAuth {
}
internal void SendAccessToken(RequestAccessTokenMessage request) {
+ if (!this.TokenManager.IsRequestTokenAuthorized(request.RequestToken)) {
+ throw new ProtocolException(
+ string.Format(
+ CultureInfo.CurrentCulture,
+ Strings.AccessTokenNotAuthorized,
+ request.RequestToken));
+ }
+
string accessToken = this.TokenGenerator.GenerateAccessToken(request.ConsumerKey);
string tokenSecret = this.TokenGenerator.GenerateSecret();
this.TokenManager.ExpireRequestTokenAndStoreNewAccessToken(request.ConsumerKey, request.RequestToken, accessToken, tokenSecret);