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DNN Blog
Nov
14
Posted by:
Charles Nurse
11/14/2005
This is another issue that crops up regularly on the ASP.NET Forums, so
I have decided to create a Blog that I can refer people to.
DotNetNuke 4.0.0 has a number of issues with Medium Trust, due to
undocumented changes in how .NET 2 handles partial trust situations.
- The first is one of the attributes on the node
in web.config, which does not support the compilerOptions attribute
under Medium Trust. Luckily this does not appear to be a problem
as removing it apparently causes no other problems.
- The second is that the provider sections of the web.config (ie
the sections under cannot be parsed under Medium
Trust. This is a new, undocumented change, as the code to parse
this worked fine under Medium Trust with .NET 1.1.
The solution is to add the attribute requirePermission="false" to all the provider declaration sections.
requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />.
I only found out the solution to this by carefully reading the error
message when the attribute is missing - the default. As a final
irony, adding this attribute causes Intellisense to display a warning
that the name "requirePermission" is not declared.
- The third change in behaviour that appears to cause problems
under Medium Trust is in the behaviour of the XmlSerializer
class. This class gave no partial trust issues in .NET 1.1, but
in .NET 2 the constructor we use in DBLoggingProvider:
xser = New XmlSerializer(obj.GetType, l)
wher l is an Array of Types that might appear as properties of the main type defined by obj.GetType, throws a trust error.
This can be replaced by the simpler constructor:
xser = New XmlSerializer(obj.GetType)
However, if we do that then we also need to decorate the class defined
by obj.GetType, with an Xml attribute that tells the Serializer that
this object also contains other classes.
_
Public Class LogProperties
I will update this Blog as I find more issue.
20 comment(s) so far...
Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Hi, I just want to share my experience. Not looking for a fix, it's just a note that may interest you ?
I try to build and run the install-package of DNN 4.0 in Visual Studio 2005 on a standard 2003 Server running SQL 2000. All permissions in SQL and filepermissions are set correctly (I believe). I've installed the patched version of the sol webcontrols (http://www.dotnetnuke.com/Community/Blogs/tabid/825/EntryID/242/Default.aspx).
First time I try to build I get the following errors:
Error 102 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. W:\newborn\wwwroot\DotNetNuke4\admin\Containers\actions.ascx 3
Error 103 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. W:\newborn\wwwroot\DotNetNuke4\admin\Containers\title.ascx 3
The first error refers to , the second one . Those two continue to produce errors whatever I do.
After commenting out the compiler (1), I still get the above errors along with this one (which pops up now and then):
Warning 104 Name '__ASP' is not CLS-compliant. C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\dotnetnuke4\7864c5a1\8f6184c5\App_Code.c7dkmfry.3.vb 16
After disabling the requirePermission (2) I still got the two first errors.
Point 3 describes the xser = New XmlSerializer(obj.GetType, l). This don't exist in my code. The closest thing is xser = New XmlSerializer(GetType(PortalInfo)) in the Template.ascx.vb file.
The two errors above gives this description when run on the web-server: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Stack Trace: [SecurityException: Request for the permission of type 'System.Configuration.ConfigurationPermission, System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' failed.] System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0 System.Security.CodeAccessPermission.Demand() +59 System.Configuration.BaseConfigurationRecord.CheckPermissionAllowed(String configKey, Boolean requirePermission, Boolean isTrustedWithoutAptca) +65
If I try to set trust to Full (see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag2/html/paght000020.asp), those two errors still appear when trying to build.
Running the last successfull build now on the webserver produce this error: Object reference not set to an instance of an object. In Install\Install.aspx.vb:90 -> xmlConfig = Config.UpdateMachineKey(xmlConfig)
Running it locally produce this error: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. (W:\newborn\wwwroot\DotNetNuke4\web.config line 38)
Stack Trace:
Line 36: Line 38:
/Bonavox
By Bonavox on
12/2/2005
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Hmmm... the blog didnt like the tags, here is the rest of the comment:
Line 36: httpModules Line 38: add name="UrlRewrite" type="DotNetNuke.HttpModules.UrlRewriteModule, DotNetNuke.HttpModules.UrlRewrite" /
/Bonavox
By Bonavox on
12/2/2005
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Aw... forget it. I tried to build on a network drive, that didn't work. Please delete my posts :)
/Bonavox
By Bonavox on
12/2/2005
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
i am getting null exception during installation, i am sure that about full trust issue,
Line 90: xmlConfig = Config.UpdateMachineKey(xmlConfig)
By ferrodoxin on
12/6/2005
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I was wondering if somebody knows if those issues are fixed in v4.0.1? I cannot a decent source that confirms this.
Many thanks,
Peter Vrenken
By ddookie on
12/8/2005
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I just tried to buid a 4.0.2 site and it appears there is still a issue with medium trust. I get the Unrecognized attribute 'requirePermission' error. (2003 server, MSSQL express 2005)
I am not looking for a fix, just sharing my experiences..
By cbondura on
1/15/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Does anybody know hot to fix "Unrecognized attribute 'requirePermission'." error when installing the 4.02 version. Any help is appreciated.
Thanks Vikas
By vikas_tyagi on
2/19/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Thanks for not deleting Bonavox's posts... I had the same problem, and his post is the only thing that came up on google.
By twisterjosh on
3/1/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
What can I do....? That would be an interesting thing in that blog...! I have no Problems with creating errors but with fixing errors... ;) So long
By BK01 on
4/3/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
"Unrecognized attribute 'requirePermission'." is actually not an error - it shows as a warning in VS2005 BUT it is actually a valid attribute. VS2005's Intellisense is not quite right.
By cnurse on
4/6/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I get the trust error still after successfully building the 4.x source code...The error looks something like this...
Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
By era_ruler on
4/12/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
i read above that the "requirePermission" error is not an error, but rather a warning. i get this: "Parser Error Message: Unrecognized attribute 'requirePermission'."
whether it's a warning or an error, i still can't do anything until it goes away and DNN is able to finish installing itself. any help would be greatly appreciated. TIA... -mike
By devguy165 on
5/1/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
If you use the DotNetNuke starter kit for VS2005 and use it on a Network Drive you get the errors on actions.ascx and title.ascx same Request for permission errors as above.
Has anybody come up with a solution for this, in this case running the solution from a network drive makes a lot of sense.
By chrisbond on
5/22/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I receive the Configuration error message Unrecognized attribute 'RequirePermission' in line 3 of Webconfig file of the starterskit. I bought DotNetNuke ASP.NET Portals and followed the instructions as descibed in chapter 2. I have no idea how I can solve the problem, also not after reading the above. When I run the project I get the content of the virtual directory. When I double click the webconfig file, I reach the error message. Can anybody give me advice? Thanks
By YDV on
10/14/2006
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Could someone give more detail on point 1. from Charles' three points at the head of this blog.
Finally able to build whole solution. Also build of website only project works fine. But when I try to rebuild or publish the website, I get the following error in the Output window on IDE.
Building directory '/DotNetNuke_2/App_Code/'./: Publication (web): Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
I would like to see this thing run.... Not sure what to do at this point
By adlync on
2/12/2007
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I am also getting the following error messages:
Error 1 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. U:\moesc2007v1\admin\Containers\actions.ascx 3 Error 2 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. U:\moesc2007v1\admin\Containers\title.ascx 3
I am running VWD Express on my local machine, accessing the server on a network drive.
If anyone has any ideas that would be great.
By fbutler on
2/23/2007
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I'm getting the same error (pasted below).
when building a project on a network drive - has anyone found a solution for this?
Error 1 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. U:\moesc2007v1\admin\Containers\actions.ascx 3 Error 2 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. U:\moesc2007v1\admin\Containers\title.ascx 3
By markMandel on
4/2/2007
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
Information for those receiving errors and trying to work on network drives: http://support.microsoft.com/?id=320268
By briandus on
12/28/2007
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I am also receiving the same error
Line 4: Line 5: Line 6: Line 7: Line 8:
Source File: \DotNetNuke\web.config Line: 6
Any help is highly appreciated
By kishore15374 on
1/24/2008
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Re: DotNetNuke 4.0.0 - Issues with Medium Trust
I'm also receiving the same error but my website is NOT on a network drive. It is on my secondary D:/ (Data) Drive.
By Carlos Krefft on
7/10/2010
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