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codeql/csharp/ql/test/library-tests/dataflow/external-models/ExternalFlow.ql
2024-01-10 22:25:02 +00:00

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/**
* @kind path-problem
*/
import csharp
import semmle.code.csharp.dataflow.internal.ExternalFlow
import Taint::PathGraph
import ModelValidation
module TaintConfig implements DataFlow::ConfigSig {
predicate isSource(DataFlow::Node src) { src.asExpr() instanceof ObjectCreation }
predicate isSink(DataFlow::Node sink) {
exists(MethodCall mc |
mc.getTarget().hasName("Sink") and
mc.getAnArgument() = sink.asExpr()
)
}
}
module Taint = TaintTracking::Global<TaintConfig>;
/**
* Emulate that methods with summaries do not have a body.
* This is relevant for dataflow analysis using summaries with a generated like
* provenance as generated summaries are only applied, if a
* callable does not have a body.
*/
private class MethodsWithGeneratedModels extends Method {
MethodsWithGeneratedModels() {
this.hasFullyQualifiedName("My.Qltest", "G",
["MixedFlowArgs", "GeneratedFlowWithGeneratedNeutral", "GeneratedFlowWithManualNeutral"])
}
override predicate hasBody() { none() }
}
from Taint::PathNode source, Taint::PathNode sink
where Taint::flowPath(source, sink)
select sink, source, sink, "$@", source, source.toString()