/// <summary>
/// Invokes a list of functions with specified arguments.
/// (Created to avoid code re-usage in the event-firers.)
/// </summary>
/// <param name="invocList">A list of functions to invoke.</param>
/// <param name="injector">The injector data to inject.</param>
/// <param name="fieldName">The field name of the data object to inject.</param>
/// <param name="p">A Privelege Container of the user attempting to call the function.</param>
/// <returns>A compilation of the returns from all the functions.</returns>
private string[] InvocationTunnel(Delegate[] invocList, object injector, string fieldName, PrivelegeContainer p )
{
Type t = moduleProxy.ModuleInstance.GetType();
FieldInfo injectorData = null;
if ( injector != null ) {
injectorData = t.GetField( fieldName, BindingFlags.Instance | BindingFlags.Public | BindingFlags.SetField | BindingFlags.Static );
injectorData.SetValue( moduleProxy.ModuleInstance, injector );
}
FieldInfo returnString = t.GetField( "returns", BindingFlags.Instance | BindingFlags.Public | BindingFlags.GetField | BindingFlags.Static | BindingFlags.SetField );
//TODO: Evaluate if these locks were a good idea.
lock ( moduleProxy.ModuleInstance ) {
int n = invocList.Length;
string[][] returns = new string[n][];
for ( int i = 0; i < n; i++ ) {
bool continueWithCall = true;
if ( p == null || !p.HasPrivelege( Priveleges.SuperUser ) ) {
//Check method permissions, can we call it?
object[] privreq = invocList[i].Method.GetCustomAttributes( false );
for ( int j = 0; j < privreq.Length; j++ ) {
if ( continueWithCall && privreq[j].GetType().Equals( typeof( PrivelegeRequiredAttribute ) ) ) {
PrivelegeRequiredAttribute pra = (PrivelegeRequiredAttribute)privreq[j];
continueWithCall = p != null ? p.HasPrivelege( pra.Required ) : ( (ulong)pra.Required == 0 );
}
if ( continueWithCall && privreq[j].GetType().Equals( typeof( UserLevelRequiredAttribute ) ) ) {
UserLevelRequiredAttribute ura = (UserLevelRequiredAttribute)privreq[j];
continueWithCall = p != null ? p.NumericalLevel >= ura.Required : ( ura.Required == 0 );
}
if ( !continueWithCall )
break;
}
}
//If we can continue with the call. Let's DO IT!
if ( continueWithCall ) {
//Null the return string to prevent multiple spams.
returnString.SetValue( moduleProxy.ModuleInstance, null );
AppDomain.CurrentDomain.DoCallBack( (CrossAppDomainDelegate)invocList[i] );
returns[i] = (string[])returnString.GetValue( moduleProxy.ModuleInstance );
}
}
//TODO:
//WARNING: Performance issues? Every single event ever needinfg to get unrwapped into a single
//sized array. Maybe evaluate where the slowdowns are later on.
List<string> flatreturn = new List<string>( returns.Length );
for ( int i = 0; i < returns.Length; i++ )
if ( returns[i] != null )
flatreturn.AddRange( returns[i] );
return flatreturn.ToArray();
}
}
private string[][] InvocationTunnel(Delegate[] invocList, PrivelegeContainer p, params object[] args)
{
int n = invocList.Length;
string[][] returns = new string[n][];
for ( int i = 0; i < n; i++ ) {
bool continueWithCall = true;
Delegate invoc = invocList[i];
if ( p == null || !p.HasPrivelege( Priveleges.SuperUser ) ) {
object[] privreq = invoc.Method.GetCustomAttributes( false );
for ( int j = 0; j < privreq.Length; j++ ) {
if ( continueWithCall && privreq[j].GetType().Equals( typeof( PrivelegeRequiredAttribute ) ) ) {
PrivelegeRequiredAttribute pra = (PrivelegeRequiredAttribute)privreq[j];
continueWithCall = p != null ? p.HasPrivelege( pra.Required ) : ( (ulong)pra.Required == 0 );
}
if ( continueWithCall && privreq[j].GetType().Equals( typeof( UserLevelRequiredAttribute ) ) ) {
UserLevelRequiredAttribute ura = (UserLevelRequiredAttribute)privreq[j];
continueWithCall = p != null ? p.NumericalLevel >= ura.Required : ( ura.Required == 0 );
}
if ( !continueWithCall )
break;
}
}
if ( continueWithCall )
returns[i] = (string[])invoc.Method.Invoke( invoc.Target, args );
else {
returns[i] = null;
}
}
return returns;
}