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follow convention (_EMPTY_, fwcs). Add special case short-circuit to skip unnecessary tokenization and transform.

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This commit is contained in:
Todd Beets
2022-07-18 14:20:10 -07:00
parent 7a47631051
commit 6de64667bc
1 changed files with 7 additions and 1 deletions
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8
server/accounts.go
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@@ -4315,6 +4315,12 @@ func newTransform(src, dest string) (*transform, error) {
func (tr *transform) Match(subject string) (string, error) {
// TODO(dlc) - We could add in client here to allow for things like foo -> foo.$ACCOUNT
// Special case: matches any and no no-op transform. May not be legal config for some features
// but specific validations made at transform create time
if (tr.src == fwcs || tr.src == _EMPTY_) && (tr.dest == fwcs || tr.dest == _EMPTY_) {
return subject, nil
}
// Tokenize the subject. This should always be a literal subject.
tsa := [32]string{}
tts := tsa[:0]
@@ -4330,7 +4336,7 @@ func (tr *transform) Match(subject string) (string, error) {
return _EMPTY_, ErrBadSubject
}
if (tr.src == "" || tr.src == ">") || isSubsetMatch(tts, tr.src) {
if (tr.src == _EMPTY_ || tr.src == fwcs) || isSubsetMatch(tts, tr.src) {
return tr.transform(tts)
}
return _EMPTY_, ErrNoTransforms