simonellistonball opened a new pull request #1408: Added a LEEF parser URL: https://github.com/apache/metron/pull/1408 ## Contributor Comments LEEF is a popular format in IBM shops as it is the default supported by Qradar. In a number of ways it is similar to CEF. This PR supports LEEF 1.0 and 2.0 per the IBM guide at https://www.ibm.com/support/knowledgecenter/SS42VS_DSM/c_LEEF_Format_Guide_intro.html and also some found in the wild examples which are technically not up to the IBM spec, and are much closer to the CEF spec. The CEF parser has been slightly refactored in this effort to expose CEF extension parsing for reuse in the LEEF parser for in the wild examples of CEF style 'delimiters'. This has been tested against a variety of samples from public sources, and from synthetic data generated according to the spec in new unit tests. ## Pull Request Checklist Thank you for submitting a contribution to Apache Metron. Please refer to our [Development Guidelines](https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=61332235) for the complete guide to follow for contributions. Please refer also to our [Build Verification Guidelines](https://cwiki.apache.org/confluence/display/METRON/Verifying+Builds?show-miniview) for complete smoke testing guides. In order to streamline the review of the contribution we ask you follow these guidelines and ask you to double check the following: ### For all changes: - [X] Is there a JIRA ticket associated with this PR? If not one needs to be created at [Metron Jira](https://issues.apache.org/jira/browse/METRON/?selectedTab=com.atlassian.jira.jira-projects-plugin:summary-panel). - [X] Does your PR title start with METRON-XXXX where XXXX is the JIRA number you are trying to resolve? Pay particular attention to the hyphen "-" character. - [X] Has your PR been rebased against the latest commit within the target branch (typically master)? ### For code changes: - [X] Have you included steps to reproduce the behavior or problem that is being changed or addressed? - [X] Have you included steps or a guide to how the change may be verified and tested manually? - [X] Have you ensured that the full suite of tests and checks have been executed in the root metron folder via: ``` mvn -q clean integration-test install && dev-utilities/build-utils/verify_licenses.sh ``` - [X] Have you written or updated unit tests and or integration tests to verify your changes? - [X] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? - [ ] Have you verified the basic functionality of the build by building and running locally with Vagrant full-dev environment or the equivalent? ### For documentation related changes: - [ ] Have you ensured that format looks appropriate for the output in which it is rendered by building and verifying the site-book? If not then run the following commands and the verify changes via `site-book/target/site/index.html`: ``` cd site-book mvn site ``` - [ ] Have you ensured that any documentation diagrams have been updated, along with their source files, using [draw.io](https://www.draw.io/)? See [Metron Development Guidelines](https://cwiki.apache.org/confluence/display/METRON/Development+Guidelines) for instructions. #### Note: Please ensure that once the PR is submitted, you check travis-ci for build issues and submit an update to your PR as soon as possible. It is also recommended that [travis-ci](https://travis-ci.org) is set up for your personal repository such that your branches are built there before submitting a pull request.
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