internal static PolicyStatement ResolveCodeGroup(CodeGroup codeGroup, Evidence evidence)
{
if (codeGroup.GetType().Assembly != typeof(UnionCodeGroup).Assembly)
{
evidence.MarkAllEvidenceAsUsed();
}
return(codeGroup.Resolve(evidence));
}
#pragma warning disable 618
internal static PolicyStatement ResolveCodeGroup(CodeGroup codeGroup, Evidence evidence)
{
// Custom code groups won't know how to mark the evidence they're using, so we need to
// be pessimistic and mark it all as used if we encounter a code group from outside of mscorlib.
if (codeGroup.GetType().Assembly != typeof(UnionCodeGroup).Assembly)
{
evidence.MarkAllEvidenceAsUsed();
}
return(codeGroup.Resolve(evidence));
}
// Retrieve the resolved policy based on Evidence from the executing
// assembly found in the specified code group.
private static string ResolveEvidence(CodeGroup fileCodeGroup)
{
string policyString = "";
// Resolve the policy based on evidence in the executing assembly.
Assembly assembly = typeof(Members).Assembly;
Evidence executingEvidence = assembly.Evidence;
PolicyStatement policy = fileCodeGroup.Resolve(executingEvidence);
if (policy != null)
{
policyString = policy.ToString();
}
return(policyString);
}
internal static PermissionSet AddPermissionForUri(PermissionSet originalPermSet, Uri srcUri)
{
PermissionSet result = originalPermSet;
if (srcUri != null)
{
Evidence evidence = new Evidence();
evidence.AddHost(new Url(BindUriHelper.UriToString(srcUri)));
IMembershipCondition membershipCondition = new UrlMembershipCondition(BindUriHelper.UriToString(srcUri));
CodeGroup codeGroup = srcUri.IsFile ? new FileCodeGroup(membershipCondition, FileIOPermissionAccess.Read | FileIOPermissionAccess.PathDiscovery) : new NetCodeGroup(membershipCondition);
PolicyStatement policyStatement = codeGroup.Resolve(evidence);
if (!policyStatement.PermissionSet.IsEmpty())
{
result = originalPermSet.Union(policyStatement.PermissionSet);
}
}
return(result);
}
internal static PermissionSet AddPermissionForUri(PermissionSet originalPermSet, Uri srcUri)
{
PermissionSet newPermSet = originalPermSet;
if (srcUri != null)
{
Evidence evidence = new Evidence();
evidence.AddHost(new Url(BindUriHelper.UriToString(srcUri))); // important: the parameter must be a UrL object not a UrI object
IMembershipCondition membership = new UrlMembershipCondition(BindUriHelper.UriToString(srcUri));
CodeGroup group = (srcUri.IsFile) ?
(CodeGroup) new FileCodeGroup(membership, FileIOPermissionAccess.Read | FileIOPermissionAccess.PathDiscovery)
:(CodeGroup) new NetCodeGroup(membership);
PolicyStatement policy = group.Resolve(evidence);
if (!policy.PermissionSet.IsEmpty())
{
newPermSet = originalPermSet.Union(policy.PermissionSet);
}
}
return(newPermSet);
}
// Retrieve the resolved policy based on executing evidence found
// in the specified code group.
private static string ResolveEvidence(CodeGroup codeGroup)
{
string policyString = "None";
// Resolve the policy based on the executing assembly's evidence.
//<Snippet19>
Assembly assembly = typeof(Members).Assembly;
Evidence executingEvidence = assembly.Evidence;
PolicyStatement policy = codeGroup.Resolve(executingEvidence);
//</Snippet19>
if (policy != null)
{
policyString = policy.ToString();
}
return(policyString);
}