dasBlog, medium trust and pingbacks

I had an issue for quite a while with pingbacks in dasBlog:

Error: System.Security.SecurityException: Request for the permission of type 'System.Net.WebPermission, ... failed. at ... at newtelligence.DasBlog.Runtime.Proxies.WeblogUpdatesClientProxy.Ping(String weblogName, String weblogUrl) at newtelligence.DasBlog.Runtime.BlogDataServiceXml.PingWeblogsWorker(Object argument) The action that failed was: Demand The type of the first permission that failed was: System.Net.WebPermission

It comes up that medium trust allows opening connections only to originHost (I guess localhost).

Here's how I solved it:

go to

%windir%\Microsoft.NET\Framework\{version}\CONFIG\web_mediumtrust.config

and find

<IPermission class="WebPermission" ...

and add some additional URIs:

<IPermission     class="WebPermission"     version="1">     <ConnectAccess>         <URI uri="$OriginHost$"/>             <!-- [Mihail Stoynov] dasBlog needs it for pingbacks START -->             <URI uri="http://rpc.weblogs.com/RPC2"/>             <URI uri="http://rpc.technorati.com/rpc/ping"/>             <URI uri="http://ping.blo.gs/"/>             <URI uri="http://rpc.pingomatic.com/"/>             <URI uri="http://ping.feedburner.com"/>             <URI uri="http://api.feedster.com/ping"/>             <URI uri="http://xping.pubsub.com/ping/"/>             <URI uri="http://api.my.yahoo.com/RPC2"/>             <!-- [Mihail Stoynov] dasBlog needs it for pingbacks END -->         </ConnectAccess> </IPermission>

These addresses were in %dasBlog%\SiteConfig\WebServices.xml