C# - soap exception when one web service calls another

[yoozioo]

hello,

This year I'm learning C# at school and now we focus on web services.

I created and published a web service which contains a method that calls another web service written by my class mates. When I run a simple windows application which uses my web service I get the following exception which is thrown when my mates' web method is called.


An unhandled exception of type 'System.Web.Services.Protocols.SoapException' occurred in System.Web.Services.dll

Additional information: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Security.SecurityException: Request for the permission of type 'System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Obj ect demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.CodeAccessPermission.Demand()
at System.Net.HttpWebRequest..ctor(Uri uri, ServicePoint servicePoint)
at System.Net.HttpRequestCreator.Create(Uri Uri)
at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)
at System.Net.WebRequest.Create(Uri requestUri)
at System.Web.Services.Protocols.WebClientProtocol.Ge tWebRequest(Uri uri)
at System.Web.Services.Protocols.HttpWebClientProtoco l.GetWebRequest(Uri uri)
at System.Web.Services.Protocols.SoapHttpClientProtoc ol.GetWebRequest(Uri uri)
at System.Web.Services.Protocols.SoapHttpClientProtoc ol.Invoke(String methodName, Object[] parameters)
at top100.aspklienci.Service.PobierzDaneKlienta(Int32 indeks)
at Service.porownajKryteriaZWycieczkami()
The action that failed was:
Demand
The type of the first permission that failed was:
System.Net.WebPermission
The first permission that failed was:
<IPermission class="System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1">
<ConnectAccess>
<URI uri="http://www\.aspklienci\.top100\.org\.pl/Service\.asmx"/>
</ConnectAccess>
</IPermission>

The demand was for:
<IPermission class="System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1">
<ConnectAccess>
<URI uri="http://www\.aspklienci\.top100\.org\.pl/Service\.asmx"/>
</ConnectAccess>
</IPermission>

The granted set of the failing assembly was:
<PermissionSet class="System.Security.PermissionSet"
version="1">
<IPermission class="System.Security.Permissions.EnvironmentPerm ission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Read="TEMP;TMP;USERNAME;OS;COMPUTERNAME"/>
<IPermission class="System.Security.Permissions.FileIOPermissio n, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Read="f:\users\okazje.hostedwindows.pl\wwwroot"
Write="f:\users\okazje.hostedwindows.pl\wwwroot"
Append="f:\users\okazje.hostedwindows.pl\wwwroot"
PathDiscovery="f:\users\okazje.hostedwindows.pl\ww wroot"/>
<IPermission class="System.Security.Permissions.IsolatedStorage FilePermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Allowed="AssemblyIsolationByUser"
UserQuota="9223372036854775807"/>
<IPermission class="System.Security.Permissions.SecurityPermiss ion, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="Assertion, Execution, ControlThread, ControlPrincipal, RemotingConfiguration"/>
<IPermission class="System.Security.Permissions.UrlIdentityPerm ission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Url="file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/root/75f744b9/a73aabfc/App_WebReferences.nbrrm83k.DLL"/>
<IPermission class="System.Security.Permissions.ZoneIdentityPer mission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Zone="MyComputer"/>
<IPermission class="System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Level="Medium"/>
<IPermission class="System.Net.DnsPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Unrestricted="true"/>
<IPermission class="System.Drawing.Printing.PrintingPermission, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
version="1"
Level="DefaultPrinting"/>
<IPermission class="System.Net.Mail.SmtpPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Access="Connect"/>
<IPermission class="System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Unrestricted="true"/>
<IPermission class="System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1">
<ConnectAccess>
<URI uri=""/>
</ConnectAccess>
</IPermission>
</PermissionSet>

The assembly or AppDomain that failed was:
App_WebReferences.nbrrm83k, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
The method that caused the failure was:
top100.aspklienci.Klient PobierzDaneKlienta(Int32)
The Zone of the assembly that failed was:
MyComputer
The Url of the assembly that failed was:
file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/root/75f744b9/a73aabfc/App_WebReferences.nbrrm83k.DLL
--- End of inner exception stack trace ---


Could anyone help me ?