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From jpeach <...@git.apache.org>
Subject [GitHub] trafficserver pull request #786: TS-4396: fix number_of_redirections off-by-...
Date Tue, 05 Jul 2016 17:46:32 GMT
Github user jpeach commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/786#discussion_r69606800
  
    --- Diff: proxy/http/HttpSM.cc ---
    @@ -7618,6 +7616,8 @@ HttpSM::do_redirect()
         return;
       }
     
    +  redirection_tries++;
    +
    --- End diff --
    
    Right below here, we repeat the test on ``number_of_redirections`` with ``is_redirect_required().
The condition is different however, since this code will not redirect with ``number_of_redirections``
and ``is_redirect_required()`` will.
    
    I don't think that this is the right place to increment ``redirection_tries``, though
it is an improvement. How about incrementing it in ``redirect_request()``? Or at least defer
until we know we are actually going to call ``redirect_request``.
     
    We should restructure this function like this:
    ```C
    if (!is_redirect_required()) {
        tunnel.deallocate_redirect_post_buffers();
        enable_redirection = false;
        return;
    }
    
    ...
    ```


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