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34 changes: 28 additions & 6 deletions java/ql/lib/semmle/code/java/dataflow/DataFlowStack.qll
Original file line number Diff line number Diff line change
@@ -1,14 +1,36 @@
import java
private import semmle.code.java.dataflow.DataFlow
private import semmle.code.java.dataflow.internal.DataFlowImplSpecific

private import codeql.dataflowstack.DataFlowStack as DFS
private import DFS::DataFlowStackMake<Location, JavaDataFlow> as DataFlowStackFactory

module DataFlowStackMake<DataFlowStackFactory::DataFlow::GlobalFlowSig Flow>{
import DataFlowStackFactory::FlowStack<Flow>
private module DataFlowStackInput<DataFlowStackFactory::DataFlow::ConfigSig Config> implements
DFS::DataFlowStackSig<Location, JavaDataFlow, Config>
{
private module Flow = DataFlow::Global<Config>;

JavaDataFlow::Node getNode(Flow::PathNode n) { result = n.getNode() }

predicate isSource(Flow::PathNode n) { n.isSource() }

Flow::PathNode getASuccessor(Flow::PathNode n) { result = n.getASuccessor() }

JavaDataFlow::DataFlowCallable getARuntimeTarget(JavaDataFlow::DataFlowCall call) {
result.asCallable() = call.asCall().getCallee()
}

JavaDataFlow::Node getAnArgumentNode(JavaDataFlow::DataFlowCall call) {
result = JavaDataFlow::exprNode(call.asCall().getAnArgument())
}
}

module DataFlowStackMake<DataFlowStackFactory::DataFlow::ConfigSig Config> {
import DataFlowStackFactory::FlowStack<Config, DataFlowStackInput<Config>>
}

module BiStackAnalysisMake<DataFlowStackFactory::DataFlow::GlobalFlowSig FlowA, DataFlowStackFactory::DataFlow::GlobalFlowSig FlowB>{
import DataFlowStackFactory::BiStackAnalysis<FlowA, FlowB>
}
module BiStackAnalysisMake<
DataFlowStackFactory::DataFlow::ConfigSig ConfigA,
DataFlowStackFactory::DataFlow::ConfigSig ConfigB>
{
import DataFlowStackFactory::BiStackAnalysis<ConfigA, DataFlowStackInput<ConfigA>, ConfigB, DataFlowStackInput<ConfigB>>
}
Original file line number Diff line number Diff line change
Expand Up @@ -236,7 +236,7 @@ module DataFlowStackMake<LocationSig Location, DF::InputSig<Location> Lang> {
exists(Flow::PathNode source, Flow::PathNode sink |
flowStack = TFlowStack(source, sink) and
frame.getPathNode() = DataFlowStack::getASuccessor*(source) and
DataFlowStack::getASuccessor(frame.getPathNode()) = sink
DataFlowStack::getASuccessor*(frame.getPathNode()) = sink
)
}

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Original file line number Diff line number Diff line change
Expand Up @@ -242,7 +242,7 @@ module TaintTrackingStackMake<
exists(Flow::PathNode source, Flow::PathNode sink |
flowStack = TFlowStack(source, sink) and
frame.getPathNode() = TaintTrackingStack::getASuccessor*(source) and
TaintTrackingStack::getASuccessor(frame.getPathNode()) = sink
TaintTrackingStack::getASuccessor*(frame.getPathNode()) = sink
)
}

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