Rename classes for external sanitizers

Author: owen-mc

java/ql/lib/semmle/code/java/security/PathSanitizer.qll

@@ -289,8 +289,8 @@ private Method getSourceMethod(Method m) {
   result = m
 }
 
-private class DefaultPathInjectionSanitizer extends PathInjectionSanitizer {
-  DefaultPathInjectionSanitizer() { barrierNode(this, "path-injection") }
+private class ExternalPathInjectionSanitizer extends PathInjectionSanitizer {
+  ExternalPathInjectionSanitizer() { barrierNode(this, "path-injection") }
 }
 
 /** Holds if `g` is a guard that checks for `..` components. */

java/ql/lib/semmle/code/java/security/RequestForgery.qll

@@ -118,8 +118,8 @@ private class ContainsUrlSanitizer extends RequestForgerySanitizer {
   }
 }
 
-private class DefaultRequestForgerySanitizer extends RequestForgerySanitizer {
-  DefaultRequestForgerySanitizer() { barrierNode(this, "request-forgery") }
+private class ExternalRequestForgerySanitizer extends RequestForgerySanitizer {
+  ExternalRequestForgerySanitizer() { barrierNode(this, "request-forgery") }
 }
 
 /**

java/ql/lib/semmle/code/java/security/TrustBoundaryViolationQuery.qll

@@ -27,8 +27,8 @@ class TrustBoundaryViolationSink extends DataFlow::Node {
  */
 abstract class TrustBoundaryValidationSanitizer extends DataFlow::Node { }
 
-private class DefaultTrustBoundaryValidationSanitizer extends TrustBoundaryValidationSanitizer {
-  DefaultTrustBoundaryValidationSanitizer() { barrierNode(this, "trust-boundary-violation") }
+private class ExternalTrustBoundaryValidationSanitizer extends TrustBoundaryValidationSanitizer {
+  ExternalTrustBoundaryValidationSanitizer() { barrierNode(this, "trust-boundary-violation") }
 }
 
 /**

java/ql/lib/semmle/code/java/security/XSS.qll

@@ -54,8 +54,8 @@ private class DefaultXssSink extends XssSink {
   }
 }
 
-private class DefaultXssSanitizer extends XssSanitizer {
-  DefaultXssSanitizer() { barrierNode(this, ["html-injection", "js-injection"]) }
+private class ExternalXssSanitizer extends XssSanitizer {
+  ExternalXssSanitizer() { barrierNode(this, ["html-injection", "js-injection"]) }
 }
 
 /** A sanitizer that considers numeric and boolean typed data safe for writing to output. */

java/ql/lib/semmle/code/java/security/regexp/RegexInjection.qll

@@ -21,8 +21,8 @@ private class DefaultRegexInjectionSink extends RegexInjectionSink {
   }
 }
 
-private class DefaultRegexInjectionSanitizer extends RegexInjectionSanitizer {
-  DefaultRegexInjectionSanitizer() { barrierNode(this, "regex-use") }
+private class ExternalRegexInjectionSanitizer extends RegexInjectionSanitizer {
+  ExternalRegexInjectionSanitizer() { barrierNode(this, "regex-use") }
 }
 
 /**