private static void VisitSyntaxNodeEx(SyntaxNodeAnalysisContext ctx)
{
Microsoft.CodeAnalysis.VisualBasic.Syntax.InvocationExpressionSyntax node = ctx.Node as Microsoft.CodeAnalysis.VisualBasic.Syntax.InvocationExpressionSyntax;
Microsoft.CodeAnalysis.VisualBasic.Syntax.ObjectCreationExpressionSyntax node2 = ctx.Node as Microsoft.CodeAnalysis.VisualBasic.Syntax.ObjectCreationExpressionSyntax;
if (node != null)
{
var symbol = ctx.SemanticModel.GetSymbolInfo(node).Symbol;
foreach (string cipher in BadCiphers)
{
if (AnalyzerUtil.SymbolMatch(symbol, type: cipher, name: "Create"))
{
var diagnostic = Diagnostic.Create(Rule, node.Expression.GetLocation(), cipher);
ctx.ReportDiagnostic(diagnostic);
}
}
}
if (node2 != null)
{
var symbol = ctx.SemanticModel.GetSymbolInfo(node2).Symbol;
foreach (string cipher in BadCiphers)
{
if (AnalyzerUtil.SymbolMatch(symbol, type: cipher + "CryptoServiceProvider"))
{
var diagnostic = Diagnostic.Create(Rule, node2.GetLocation(), cipher);
ctx.ReportDiagnostic(diagnostic);
}
}
}
}
private static void VisitSyntaxNodeEx(SyntaxNodeAnalysisContext ctx)
{
Microsoft.CodeAnalysis.VisualBasic.Syntax.InvocationExpressionSyntax node = ctx.Node as Microsoft.CodeAnalysis.VisualBasic.Syntax.InvocationExpressionSyntax;
if (node != null)
{
var symbol = ctx.SemanticModel.GetSymbolInfo(node).Symbol;
//System.Random.Next()
if (AnalyzerUtil.SymbolMatch(symbol, type: "Random", name: "Next") ||
AnalyzerUtil.SymbolMatch(symbol, type: "Random", name: "NextBytes") ||
AnalyzerUtil.SymbolMatch(symbol, type: "Random", name: "NextDouble"))
{
var diagnostic = Diagnostic.Create(Rule, node.Expression.GetLocation());
ctx.ReportDiagnostic(diagnostic);
}
}
}