import python
import semmle.python.dataflow.TaintTracking
import semmle.python.security.strings.Untrusted

class SimpleSource extends TaintSource {
  SimpleSource() { this.(NameNode).getId() = "TAINTED_STRING" }

  override predicate isSourceOf(TaintKind kind) { kind instanceof ExternalStringKind }

  override string toString() { result = "taint source" }
}

class ListSource extends TaintSource {
  ListSource() { this.(NameNode).getId() = "TAINTED_LIST" }

  override predicate isSourceOf(TaintKind kind) { kind instanceof ExternalStringSequenceKind }

  override string toString() { result = "list taint source" }
}

class DictSource extends TaintSource {
  DictSource() { this.(NameNode).getId() = "TAINTED_DICT" }

  override predicate isSourceOf(TaintKind kind) { kind instanceof ExternalStringDictKind }

  override string toString() { result = "dict taint source" }
}