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private Push ( |
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| element | ||
| return | void | |
private ArrayList GenericResolve(Evidence evidence, out bool allConst)
{
CodeGroupStack stack = new CodeGroupStack();
CodeGroup rootCodeGroup = this.m_rootCodeGroup;
if (rootCodeGroup == null)
{
throw new PolicyException(Environment.GetResourceString("Policy_NonFullTrustAssembly"));
}
CodeGroupStackFrame element = new CodeGroupStackFrame {
current = rootCodeGroup,
parent = null
};
stack.Push(element);
ArrayList list = new ArrayList();
bool flag = false;
allConst = true;
Exception exception = null;
while (!stack.IsEmpty())
{
element = stack.Pop();
FirstMatchCodeGroup current = element.current as FirstMatchCodeGroup;
UnionCodeGroup group3 = element.current as UnionCodeGroup;
if (!(element.current.MembershipCondition is IConstantMembershipCondition) || ((group3 == null) && (current == null)))
{
allConst = false;
}
try
{
element.policy = PolicyManager.ResolveCodeGroup(element.current, evidence);
}
catch (Exception exception2)
{
if (exception == null)
{
exception = exception2;
}
}
if (element.policy != null)
{
if ((element.policy.Attributes & PolicyStatementAttribute.Exclusive) != PolicyStatementAttribute.Nothing)
{
if (flag)
{
throw new PolicyException(Environment.GetResourceString("Policy_MultipleExclusive"));
}
list.RemoveRange(0, list.Count);
list.Add(element);
flag = true;
}
if (!flag)
{
list.Add(element);
}
}
}
if (exception != null)
{
throw exception;
}
return list;
}
[System.Security.SecurityCritical] // auto-generated
private ArrayList GenericResolve(Evidence evidence, out bool allConst) {
CodeGroupStack stack = new CodeGroupStack();
// Note: if m_rootCodeGroup is null it means that we've
// hit a recursive load case and ended up needing to
// do a resolve on an assembly used in policy but is
// not covered by the full trust assemblies list. We'll
// throw a policy exception to cover this case.
CodeGroupStackFrame frame;
CodeGroup rootCodeGroupRef = m_rootCodeGroup;
if (rootCodeGroupRef == null)
throw new PolicyException(Environment.GetResourceString("Policy_NonFullTrustAssembly"));
frame = new CodeGroupStackFrame();
frame.current = rootCodeGroupRef;
frame.parent = null;
stack.Push(frame);
ArrayList accumulator = new ArrayList();
bool foundExclusive = false;
allConst = true;
Exception storedException = null;
while (!stack.IsEmpty()) {
frame = stack.Pop();
FirstMatchCodeGroup firstMatchGroup = frame.current as FirstMatchCodeGroup;
UnionCodeGroup unionGroup = frame.current as UnionCodeGroup;
if (!(frame.current.MembershipCondition is IConstantMembershipCondition) ||
(unionGroup == null && firstMatchGroup == null)) {
allConst = false;
}
try {
frame.policy = PolicyManager.ResolveCodeGroup(frame.current, evidence);
}
catch (Exception e) {
// If any exception occurs while attempting a resolve, we catch it here and
// set the equivalent of the resolve not matching to the evidence.
//frame.policy = null;
if (storedException == null)
storedException = e;
}
if (frame.policy != null) {
if ((frame.policy.Attributes & PolicyStatementAttribute.Exclusive) != 0) {
if (foundExclusive)
throw new PolicyException(Environment.GetResourceString("Policy_MultipleExclusive"));
accumulator.RemoveRange(0, accumulator.Count);
accumulator.Add(frame);
foundExclusive = true;
}
if (!foundExclusive) {
accumulator.Add(frame);
}
}
}
if (storedException != null)
throw storedException;
return accumulator;
}
private ArrayList GenericResolve( Evidence evidence, out bool allConst )
{
CodeGroupStack stack = new CodeGroupStack();
// Note: if m_rootCodeGroup is null it means that we've
// hit a recursive load case and ended up needing to
// do a resolve on an assembly used in policy but is
// not covered by the full trust assemblies list. We'll
// throw a policy exception to cover this case.
CodeGroupStackFrame frame;
CodeGroup rootCodeGroupRef = m_rootCodeGroup;
if (rootCodeGroupRef == null)
throw new PolicyException( Environment.GetResourceString( "Policy_NonFullTrustAssembly" ) );
frame = new CodeGroupStackFrame();
frame.current = rootCodeGroupRef;
frame.parent = null;
stack.Push( frame );
ArrayList accumulator = new ArrayList();
bool foundExclusive = false;
allConst = true;
Exception storedException = null;
while (!stack.IsEmpty())
{
frame = stack.Pop();
#if _DEBUG
if (debug)
DEBUG_OUT( "Current frame =\n" + frame.current.ToXml().ToString() );
#endif
UnionCodeGroup unionGroup = frame.current as UnionCodeGroup;
NetCodeGroup netGroup = frame.current as NetCodeGroup;
FileCodeGroup fileGroup = frame.current as FileCodeGroup;
if (!(frame.current.MembershipCondition is IConstantMembershipCondition) || !(unionGroup != null || netGroup != null || fileGroup != null))
{
allConst = false;
}
try
{
if (unionGroup != null)
frame.policy = unionGroup.InternalResolve( evidence );
else if (netGroup != null)
frame.policy = netGroup.InternalResolve( evidence );
else if (fileGroup != null)
frame.policy = fileGroup.InternalResolve( evidence );
else
frame.policy = frame.current.Resolve( evidence );
}
catch (Exception e)
{
// If any exception occurs while attempting a resolve, we catch it here and
// set the equivalent of the resolve not matching to the evidence.
//frame.policy = null;
if (storedException == null)
storedException = e;
}
#if _DEBUG
if (debug)
DEBUG_OUT( "Check gives =\n" + (frame.policy == null ? "<null>" : frame.policy.ToXml().ToString() ) );
#endif
if (frame.policy != null)
{
if ((frame.policy.Attributes & PolicyStatementAttribute.Exclusive) != 0)
{
#if _DEBUG
if (debug)
DEBUG_OUT( "Discovered exclusive group" );
#endif
if (foundExclusive)
{
throw new PolicyException( Environment.GetResourceString( "Policy_MultipleExclusive" ) );
}
else
{
accumulator.RemoveRange( 0, accumulator.Count );
accumulator.Add( frame );
foundExclusive = true;
}
}
// We unroll the recursion in the case where we have UnionCodeGroups or NetCodeGroups.
if (unionGroup != null || netGroup != null || fileGroup != null)
{
IList children = ((CodeGroup)frame.current).GetChildrenInternal();
if (children != null && children.Count > 0)
{
IEnumerator enumerator = children.GetEnumerator();
while (enumerator.MoveNext())
{
#if _DEBUG
if (debug)
DEBUG_OUT( "Pushing =\n" + ((CodeGroup)enumerator.Current).ToXml().ToString());
#endif
CodeGroupStackFrame newFrame = new CodeGroupStackFrame();
newFrame.current = (CodeGroup)enumerator.Current;
newFrame.parent = frame;
stack.Push( newFrame );
}
}
}
if (!foundExclusive)
{
accumulator.Add( frame );
}
}
}
if (storedException != null)
throw storedException;
return accumulator;
}