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現在、DotNetOpenAuth ライブラリを使用して OAuth 経由で wcf SOAP Web サービスを保護するアプリを開発中です。すべてが IIS7 上で実行されます。Web サービスと DotNetOpenAuth ライブラリは、少なくとも PC 上で実行している場合はスムーズに動作しています。ただし、Android プラットフォームからサービスを呼び出すと、いくつかの問題が発生します。正常に実行される場合もあれば、「シーケンスに要素が含まれていません」という例外が発生する場合もあります。

残念ながら、私自身は実際に利用可能なアンドロイドを持っていないので、すべての詳細を持っているわけではありません. しかし、同僚が作成したログ ファイルを読むと、いくつかの点が際立っています。

Windowsイベントログは、これがKeyNotFoundExceptionであることを示しています。これは、トークンが認識されたために発生します（実際、トークンはデータベースに存在するため、これは発生しないはずです-確認しました）。

さらに、非常に興味深いのは、この例外が + または / 記号が oauth_token パラメーターに存在する場合にのみ発生することです。これは、2 つの文字が適切にエンコードされていないエンコードの問題であると考える傾向があります。Windows イベント ログを確認すると、oauth_token パラメーターに + または / が含まれている場合は常に、スペースに置き換えられます。ただし、これがどこでエンコードされているのか、なぜこれらの 2 文字がスペースに置き換えられるのか、そして最も重要なこととして、今のところそれを修正する方法はわかりません。

また、log4net ロギングを有効にしました。これは、oauth_token 変数がデータベース内のものと同一であることを示しています。ただし、構成された署名ベース文字列に oauth_token が含まれていることは示されていますが、/ 文字のみが %252F に置き換えられています。ただし、数行下では、oauth_token 変数が個別に (つまり、ベース文字列の一部としてではなく、変数の要約として) 表示され、/ は実際には / として表示されます。

この問題に関するヘルプをいただければ幸いです。

編集

log4net から取得したログ

2012-05-18 13:05:21,588 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Channel - Preparing to send UnauthorizedTokenResponse (1.0.1) message.
  2012-05-18 13:05:22,099 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.OAuth.ChannelElements.TokenHandlingBindingElement applied to message.
  2012-05-18 13:05:22,100 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.OAuth.ChannelElements.OAuthHttpMethodBindingElement did not apply to message.
2012-05-18 13:05:22,102 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.Messaging.Bindings.StandardReplayProtectionBindingElement did not apply to message.
2012-05-18 13:05:22,104 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.Messaging.Bindings.StandardExpirationBindingElement did not apply to message.
2012-05-18 13:05:22,109 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.OAuth.ChannelElements.SigningBindingElementChain did not apply to message.
2012-05-18 13:05:22,113 (GMT+2) [5] INFO  DotNetOpenAuth.Messaging.Channel - Prepared outgoing UnauthorizedTokenResponse (1.0.1) message for <response>: 
    oauth_token: LgelzDbE0hd8Z+HrRQWD63SzNA8=
    oauth_token_secret: eK1sVTQvF6LrHqrtDGXe4LpLunI=
    oauth_callback_confirmed: true

2012-05-18 13:05:22,113 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Channel - Sending message: UnauthorizedTokenResponse
2012-05-18 13:05:22,463 (GMT+2) [5] INFO  DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://websrv.hszuyd.nl/serviceprovider/v2/OAuth.ashx?oauth_token=LgelzDbE0hd8Z+HrRQWD63SzNA8=
2012-05-18 13:05:22,996 (GMT+2) [5] ERROR DotNetOpenAuth.OAuthServiceProvider - An unhandled exception occurred in ASP.NET processing: DotNetOpenAuth.Messaging.ProtocolException: A token in the message was not recognized by the service provider. ---> System.Collections.Generic.KeyNotFoundException: Unrecognized token ---> System.InvalidOperationException: Sequence contains no elements
   at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
   at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries)
   at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query)
   at System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   at System.Linq.Queryable.First[TSource](IQueryable`1 source, Expression`1 predicate)
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 31
   --- End of inner exception stack trace ---
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 35
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 80
   --- End of inner exception stack trace ---
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 100
   at OAuthServiceProvider.Code.CustomOAuthMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in C:\Program Files\TimeTableWebService\sp\Code\CustomOAuthTypeProvider.cs:line 24
   at DotNetOpenAuth.Messaging.Channel.Receive(Dictionary`2 fields, MessageReceivingEndpoint recipient) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 713
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthChannel.ReadFromRequestCore(HttpRequestInfo request) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthChannel.cs:line 194
   at DotNetOpenAuth.Messaging.Channel.ReadFromRequest(HttpRequestInfo httpRequest) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 422
   at OAuth.ProcessRequest(HttpContext context) in d:\oauthSiteTest\serviceprovider\v2\OAuth.ashx:line 21
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
DotNetOpenAuth.Messaging.ProtocolException: A token in the message was not recognized by the service provider. ---> System.Collections.Generic.KeyNotFoundException: Unrecognized token ---> System.InvalidOperationException: Sequence contains no elements
   at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
   at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries)
   at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query)
   at System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   at System.Linq.Queryable.First[TSource](IQueryable`1 source, Expression`1 predicate)
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 31
   --- End of inner exception stack trace ---
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 35
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 80
   --- End of inner exception stack trace ---
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 100
   at OAuthServiceProvider.Code.CustomOAuthMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in C:\Program Files\TimeTableWebService\sp\Code\CustomOAuthTypeProvider.cs:line 24
   at DotNetOpenAuth.Messaging.Channel.Receive(Dictionary`2 fields, MessageReceivingEndpoint recipient) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 713
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthChannel.ReadFromRequestCore(HttpRequestInfo request) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthChannel.cs:line 194
   at DotNetOpenAuth.Messaging.Channel.ReadFromRequest(HttpRequestInfo httpRequest) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 422
   at OAuth.ProcessRequest(HttpContext context) in d:\oauthSiteTest\serviceprovider\v2\OAuth.ashx:line 21
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)


2012-05-18 13:05:27,382 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Channel - Preparing to send UnauthorizedTokenResponse (1.0.1) message.
2012-05-18 13:05:27,430 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.OAuth.ChannelElements.TokenHandlingBindingElement applied to message.
2012-05-18 13:05:27,430 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.OAuth.ChannelElements.OAuthHttpMethodBindingElement did not apply to message.
2012-05-18 13:05:27,430 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.Messaging.Bindings.StandardReplayProtectionBindingElement did not apply to message.
2012-05-18 13:05:27,430 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.Messaging.Bindings.StandardExpirationBindingElement did not apply to message.
2012-05-18 13:05:27,430 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Bindings - Binding element DotNetOpenAuth.OAuth.ChannelElements.SigningBindingElementChain did not apply to message.
2012-05-18 13:05:27,430 (GMT+2) [6] INFO  DotNetOpenAuth.Messaging.Channel - Prepared outgoing UnauthorizedTokenResponse (1.0.1) message for <response>: 
    oauth_token: tdKwMhsNOyQPTiz+K5th/RZr0F8=
    oauth_token_secret: UtfdLNG0VqrTGinchsNfjbyFBtE=
    oauth_callback_confirmed: true

2012-05-18 13:05:27,430 (GMT+2) [6] DEBUG DotNetOpenAuth.Messaging.Channel - Sending message: UnauthorizedTokenResponse
2012-05-18 13:05:27,503 (GMT+2) [6] INFO  DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://websrv.hszuyd.nl/serviceprovider/v2/OAuth.ashx?oauth_token=tdKwMhsNOyQPTiz+K5th/RZr0F8=
2012-05-18 13:05:27,512 (GMT+2) [6] ERROR DotNetOpenAuth.OAuthServiceProvider - An unhandled exception occurred in ASP.NET processing: DotNetOpenAuth.Messaging.ProtocolException: A token in the message was not recognized by the service provider. ---> System.Collections.Generic.KeyNotFoundException: Unrecognized token ---> System.InvalidOperationException: Sequence contains no elements
   at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
   at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries)
   at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query)
   at System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   at System.Linq.Queryable.First[TSource](IQueryable`1 source, Expression`1 predicate)
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 31
   --- End of inner exception stack trace ---
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 35
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 80
   --- End of inner exception stack trace ---
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 100
   at OAuthServiceProvider.Code.CustomOAuthMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in C:\Program Files\TimeTableWebService\sp\Code\CustomOAuthTypeProvider.cs:line 24
   at DotNetOpenAuth.Messaging.Channel.Receive(Dictionary`2 fields, MessageReceivingEndpoint recipient) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 713
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthChannel.ReadFromRequestCore(HttpRequestInfo request) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthChannel.cs:line 194
   at DotNetOpenAuth.Messaging.Channel.ReadFromRequest(HttpRequestInfo httpRequest) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 422
   at OAuth.ProcessRequest(HttpContext context) in d:\oauthSiteTest\serviceprovider\v2\OAuth.ashx:line 21
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
DotNetOpenAuth.Messaging.ProtocolException: A token in the message was not recognized by the service provider. ---> System.Collections.Generic.KeyNotFoundException: Unrecognized token ---> System.InvalidOperationException: Sequence contains no elements
   at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
   at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries)
   at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query)
   at System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   at System.Linq.Queryable.First[TSource](IQueryable`1 source, Expression`1 predicate)
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 31
   --- End of inner exception stack trace ---
   at OAuthServiceProvider.Code.DatabaseTokenManager.GetRequestToken(String token) in C:\Program Files\TimeTableWebService\sp\Code\DatabaseTokenManager.cs:line 35
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 80
   --- End of inner exception stack trace ---
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthServiceProviderMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthServiceProviderMessageFactory.cs:line 100
   at OAuthServiceProvider.Code.CustomOAuthMessageFactory.GetNewRequestMessage(MessageReceivingEndpoint recipient, IDictionary`2 fields) in C:\Program Files\TimeTableWebService\sp\Code\CustomOAuthTypeProvider.cs:line 24
   at DotNetOpenAuth.Messaging.Channel.Receive(Dictionary`2 fields, MessageReceivingEndpoint recipient) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 713
   at DotNetOpenAuth.OAuth.ChannelElements.OAuthChannel.ReadFromRequestCore(HttpRequestInfo request) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\OAuth\ChannelElements\OAuthChannel.cs:line 194
   at DotNetOpenAuth.Messaging.Channel.ReadFromRequest(HttpRequestInfo httpRequest) in c:\BuildAgent\work\a02b428f36957bca\src\DotNetOpenAuth\Messaging\Channel.cs:line 422
   at OAuth.ProcessRequest(HttpContext context) in d:\oauthSiteTest\serviceprovider\v2\OAuth.ashx:line 21
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
2012-05-18 13:05:30,486 (GMT+2) [5] INFO  DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://websrv.hszuyd.nl/serviceprovider/v2/OAuth.ashx
2012-05-18 13:05:30,487 (GMT+2) [5] DEBUG DotNetOpenAuth.Messaging.Channel - Incoming request received: RequestScopedTokenMessage
2012-05-18 13:05:30,487 (GMT+2) [5] INFO  DotNetOpenAuth.Messaging.Channel - Processing incoming RequestScopedTokenMessage (1.0.1) message:
    scope: http://tempuri.org/DataApi/retrieveTimeTable
    oauth_callback: x-oauthflow://callback/
    oauth_consumer_key: sampleconsumer
    oauth_nonce: 913320039
    oauth_signature_method: HMAC-SHA1
    oauth_signature: yfPMlcFo6/NgJltyCLc++RMyQCY=
    oauth_version: 1.0
    oauth_timestamp: 1337339130
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1 に答える 1

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確実に知るには、例外のコールスタックが必要です。おそらく、この例外は単なる内部例外であり (ASP.NET には外部例外ではなく内部例外を報告する習慣があります)、外部例外は必要なコンテキストも追加する可能性があります。既にloggingを有効にしているので、そこからすべての例外の詳細を取得できるはずです。

/および文字が HTTP URL でエンコードされていない場合+、それは修正が必要なクライアントのバグです。

于 2012-05-21T01:15:09.457 に答える