Protect RequestCondition against unkown HTTP methods

The RequestMethodsRequestCondition is now protected against HTTP
request method values not present in the RequestMethod enumeration
(e.g. PROPFIND).

Issue: SPR-9815
This commit is contained in:
Phillip Webb
2012-09-20 17:39:07 -07:00
committed by Rossen Stoyanchev
parent b0153ada19
commit c0729756d7
2 changed files with 36 additions and 15 deletions

View File

@@ -87,32 +87,43 @@ public final class RequestMethodsRequestCondition extends AbstractRequestConditi
}
/**
* Checks if any of the HTTP request methods match the given request and returns
* an instance that contains the matching request method only.
* Check if any of the HTTP request methods match the given request and
* return an instance that contains the matching HTTP request method only.
*
* @param request the current request
* @return the same instance if the condition contains no request method;
* or a new condition with the matching request method;
* or {@code null} if no request methods match.
* @return the same instance if the condition is empty, a new condition with
* the matched request method, or {@code null} if no request methods match
*/
public RequestMethodsRequestCondition getMatchingCondition(HttpServletRequest request) {
if (methods.isEmpty()) {
if (this.methods.isEmpty()) {
return this;
}
RequestMethod incomingRequestMethod = RequestMethod.valueOf(request.getMethod());
for (RequestMethod method : methods) {
if (method.equals(incomingRequestMethod)) {
return new RequestMethodsRequestCondition(method);
RequestMethod incomingRequestMethod = getRequestMethod(request);
if(incomingRequestMethod != null) {
for (RequestMethod method : this.methods) {
if (method.equals(incomingRequestMethod)) {
return new RequestMethodsRequestCondition(method);
}
}
}
return null;
}
private RequestMethod getRequestMethod(HttpServletRequest request) {
try {
return RequestMethod.valueOf(request.getMethod());
}
catch (IllegalArgumentException e) {
return null;
}
}
/**
* Returns:
* <ul>
* <li>0 if the two conditions contain the same number of HTTP request methods.
* <li>Less than 0 if "this" instance has an HTTP request method but "other" doesn't.
* <li>Greater than 0 "other" has an HTTP request method but "this" doesn't.
* <li>0 if the two conditions contain the same number of HTTP request methods
* <li>Less than 0 if "this" instance has an HTTP request method but "other" doesn't
* <li>Greater than 0 "other" has an HTTP request method but "this" doesn't
* </ul>
*
* <p>It is assumed that both instances have been obtained via