Github user alopresto commented on a diff in the pull request: https://github.com/apache/nifi/pull/1692#discussion_r113585054 --- Diff: nifi-nar-bundles/nifi-cybersecurity-bundle/nifi-cybersecurity-processors/src/main/java/org/apache/nifi/processors/cybersecurity/CompareFuzzyHash.java --- @@ -183,38 +181,24 @@ public void onTrigger(ProcessContext context, ProcessSession session) throws Pro return; } - Digest inputDigest = null; - SpamSum spamSum = null; + FuzzyHashMatcher fuzzyHashMatcher = null; switch (algorithm) { case tlsh: - // In case we are using TLSH, makes sense to create the source Digest just once - inputDigest = compareStringToTLSHDigest(inputHash); - // we test the validation for null (failed) - if (inputDigest == null) { - // and if that is the case we log - logger.error("Invalid hash provided. Sending to failure"); - // and send to failure - session.transfer(flowFile, REL_FAILURE); - session.commit(); - return; - } + fuzzyHashMatcher = new TLSHHashMatcher(getLogger()); break; case ssdeep: - // However, in SSDEEP, the compare function uses the two desired strings. - // So we try a poor man validation (the SpamSum comparison function seems to - // be resilient enough but we still want to route to failure in case it - // clearly bogus data - if (looksLikeSpamSum(inputHash) == true) { - spamSum = new SpamSum(); - } else { - // and if that is the case we log - logger.error("Invalid hash provided. Sending to failure"); - // and send to failure - session.transfer(flowFile, REL_FAILURE); - session.commit(); - return; - } + fuzzyHashMatcher = new SSDeepHashMatcher(getLogger()); + break; + } --- End diff -- I think there should be a `default` case to handle no `algorithm` provided.
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