[Varnish] #1009: Varnish allows invalid headers

[Varnish]

#1009: Varnish allows invalid headers
-------------------------+--------------------------------------------------
  Reporter:  scoof       |        Type:  defect  
    Status:  closed      |    Priority:  low     
 Milestone:              |   Component:  varnishd
   Version:  trunk       |    Severity:  normal  
Resolution:  worksforme  |    Keywords:          
-------------------------+--------------------------------------------------
Changes (by phk):

  * status:  new => closed
  * resolution:  => worksforme


Comment:

 The reason why we do not do this, is that Varnish does not text-process
 all headers, only the ones it needs to use.

 RFC2616 says
 {{{
 10.4.1 400 Bad Request

    The request could not be understood by the server due to malformed
    syntax. The client SHOULD NOT repeat the request without
    modifications.
 }}}

 If an HTTP request contains a dskfjsldkfslkfjsdl line, Varnish is still
 perfectly able to understand it, it just ignores that line.

 If you want to have Varnish be anal retentive about HTTP request, the way
 to do it, is to write a VMOD::strict.

 The bug in this case is in varnishncsa (as per ticket #1006).

-- 
Ticket URL: <http://www.varnish-cache.org/trac/ticket/1009#comment:1>
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