public object Execute(Expression expression)
{
var updater = new QueryModifier();
expression = updater.Visit(expression);
if (updater.Source == null)
{
throw new InvalidOperationException();
}
var result = updater.Source.Provider.Execute(expression);
return(result);
}
public IQueryable CreateQuery(Expression expression)
{
var updater = new QueryModifier();
expression = updater.Visit(expression);
if (updater.Source == null)
{
throw new InvalidOperationException();
}
var result = updater.Source.Provider.CreateQuery(expression);
return(result);
}
public IQueryable <TElement> CreateQuery <TElement>(Expression expression)
{
if (!(expression is MethodCallExpression mc))
{
throw new ArgumentException("Invalid expression", nameof(expression));
}
var queryable = ConstantFinder <IQueryable <TSource> > .FindIn(mc.Arguments[0]);
if (queryable == null)
{
throw new InvalidOperationException("Cannot find source.");
}
if (mc.Method.TryFindMethod(out var method))
{
var arguments = mc.Arguments.Select(x =>
LambdaFinder.FindIn(x) ?? ConstantFinder <object> .FindIn(x)).ToArray();
return((IQueryable <TElement>)method.Invoke(null, arguments));
}
var source = new Lazy <IEnumerable <TSource> >(() => (queryable as IQueryableCollection <TSource>)?.Source ?? queryable);
var collection = new Lazy <IReadOnlyObservableCollection <TSource> >(() => source.Value as IReadOnlyObservableCollection <TSource>);
var list = new Lazy <IReadOnlyObservableList <TSource> >(() => source.Value as IReadOnlyObservableList <TSource>);
switch (mc.Method.Name)
{
case "OfType" when mc.Arguments.Count == 1 && collection.Value != null:
return(list.Value != null
? new CastingReadOnlyObservableList <TSource, TElement>(list.Value.ListWhere(x => x is TElement)).AsQueryableCollection()
: new CastingReadOnlyObservableCollection <TSource, TElement>(source.Value.ListWhere(x => x is TElement)).AsQueryableCollection());
case "Cast" when mc.Arguments.Count == 1 && collection.Value != null:
return(list.Value != null
? new CastingReadOnlyObservableList <TSource, TElement>(list.Value).AsQueryableCollection()
: new CastingReadOnlyObservableCollection <TSource, TElement>(collection.Value).AsQueryableCollection());
}
var updater = new QueryModifier();
expression = updater.Visit(expression);
if (updater.Source == null)
{
throw new InvalidOperationException();
}
var result = updater.Source.Provider.CreateQuery <TElement>(expression);
return(result);
}
private void AttackPOST(string URL, string POST)
{
if (string.IsNullOrEmpty(POST))
{
return;
}
for (int i = 0; i < AttackedUrls.Count; i++)
{
if (AttackedUrls[i].OriginalURL == URL && AttackedUrls[i].OriginalPOST == POST)
{
return;
}
}
QueryModifier queryModifier = new QueryModifier(POST);
if (queryModifier.ParameterCount == 0)
{
return;
}
do
{
string NewPOST = queryModifier.GetModifiedQuery(textBoxModifier.Text);
DateTime Start = DateTime.Now;
CreateWebrequest Request = new CreateWebrequest();
string HTML = Request.StringGetWebPage(URL, POST, new List <string>(), false);
AttackedUrl attackedURL = new AttackedUrl();
attackedURL.HTML = HTML;
attackedURL.OriginalPOST = POST;
attackedURL.OriginalURL = URL;
attackedURL.ModifiedPOST = NewPOST;
AttackedUrls.Add(attackedURL);
ClearAttackBrowser();
ListViewItem Item = new ListViewItem();
Item.Text = URL;
Item.SubItems.Add(NewPOST);
listViewResult.Items.Add(Item);
}while (queryModifier.NextParameter());
}
private void AttackURL(string URL)
{
if (!URL.Contains("?"))
{
return;
}
for (int i = 0; i < AttackedUrls.Count; i++)
{
if (AttackedUrls[i].OriginalURL == URL && string.IsNullOrEmpty(AttackedUrls[i].OriginalPOST))
{
return;
}
}
string Query = URL.Substring(URL.IndexOf('?') + 1);
string BeforeQuery = URL.Substring(0, URL.IndexOf('?') + 1);
QueryModifier queryModifier = new QueryModifier(Query);
if (queryModifier.ParameterCount != 0)
{
do
{
string NewURL = BeforeQuery + queryModifier.GetModifiedQuery(textBoxModifier.Text);
DateTime Start = DateTime.Now;
CreateWebrequest Request = new CreateWebrequest();
string HTML = Request.StringGetWebPage(NewURL, string.Empty, new List <string>(), false);
AttackedUrl attackedURL = new AttackedUrl();
attackedURL.HTML = HTML;
attackedURL.OriginalURL = URL;
attackedURL.ModifiedURL = NewURL;
AttackedUrls.Add(attackedURL);
ClearAttackBrowser();
ListViewItem Item = new ListViewItem();
Item.Text = NewURL;
Item.SubItems.Add(string.Empty);
listViewResult.Items.Add(Item);
}while (queryModifier.NextParameter());
}
}
public TResult Execute <TResult>(Expression expression)
{
if (expression is MethodCallExpression mc)
{
if (mc.Method.TryFindMethod(out var method))
{
var arguments = mc.Arguments.Select(x =>
LambdaFinder.FindIn(x) ?? ConstantFinder <object> .FindIn(x)).ToArray();
return((TResult)method.Invoke(null, arguments));
}
}
var updater = new QueryModifier();
expression = updater.Visit(expression);
if (updater.Source == null)
{
throw new InvalidOperationException();
}
var result = updater.Source.Provider.Execute <TResult>(expression);
return(result);
}
