yasserzamani commented on a change in pull request #483:
URL: https://github.com/apache/struts/pull/483#discussion_r615236192
##########
File path: core/src/main/java/org/apache/struts2/components/Component.java
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@@ -571,4 +576,39 @@ public boolean isValidTagAttribute(String attrName) {
return standardAttributes;
}
+ protected boolean isAccepted(String paramName) {
+ AcceptedPatternsChecker.IsAccepted result =
acceptedPatterns.isAccepted(paramName);
+ if (result.isAccepted()) {
+ return true;
+ }
+
+ LOG.warn("Parameter [{}] didn't match accepted pattern [{}]! See
Accepted / Excluded patterns at\n" +
+
"https://struts.apache.org/security/#accepted--excluded-patterns";,
+ paramName, result.getAcceptedPattern());
+
+ return false;
+ }
+
+ protected boolean isExcluded(String paramName) {
+ ExcludedPatternsChecker.IsExcluded result =
excludedPatterns.isExcluded(paramName);
+ if (!result.isExcluded()) {
+ return false;
+ }
+
+ LOG.warn("Parameter [{}] matches excluded pattern [{}]! See Accepted /
Excluded patterns at\n" +
+
"https://struts.apache.org/security/#accepted--excluded-patterns";,
+ paramName, result.getExcludedPattern());
+
+ return true;
+ }
Review comment:
That being said if I want to summarize, the new policy is: A parsed
result of `translateVariable` method must also be valid if it's going to go for
second evaluation.
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