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From markap14 <...@git.apache.org>
Subject [GitHub] nifi pull request: NIFI-1781: UI authorization updates
Date Mon, 23 May 2016 17:49:04 GMT
Github user markap14 commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/461#discussion_r64258489
  
    --- Diff: nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-api/src/main/java/org/apache/nifi/web/api/ProcessGroupResource.java
---
    @@ -2024,6 +1843,24 @@ public Response instantiateTemplate(
         // templates
         // ---------
     
    +    private void authorizeSnippetUsage(final AuthorizableLookup lookup, final String
groupId, final String snippetId) {
    +        // ensure write access to the target process group
    +        lookup.getProcessGroup(groupId).authorize(authorizer, RequestAction.WRITE);
    +
    +        // ensure read permission to every component in the snippet
    +        final Snippet snippet = lookup.getSnippet(snippetId);
    +        final Set<Authorizable> authorizables = new HashSet<>();
    +        authorizables.addAll(snippet.getProcessGroups().keySet().stream().map(id ->
lookup.getProcessGroup(id)).collect(Collectors.toSet()));
    --- End diff --
    
    Or better yet, to get rid of the 'authorizables' Set all together and define the final
authorization lambda as an object and just call it on each of these streams. E.g.,
    
    ```
    final Consumer<Authorizable> auth = authorizable -> authorizable.authorize(authorizer,
RequestAciton.READ);
    snippet.getProcessGroups().keySet().stream().map(id -> lookup.getProcessGroup(id)).forEach(auth);
    snippet.getProcessors().keySet().stream().map(id -> lookup.getProcessor(id)).forEach(auth);
    ```


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