[JBoss JIRA] Created: (NETTY-255) Make CookieDecoder more robust

[Trustin Lee (JIRA)]

Make CookieDecoder more robust
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                 Key: NETTY-255
                 URL: https://jira.jboss.org/jira/browse/NETTY-255
             Project: Netty
          Issue Type: Feature Request
          Components: Handler
            Reporter: Trustin Lee
            Assignee: Trustin Lee
             Fix For: 3.2.0.ALPHA2


The following Google Analytics cookie violates the RFC, but it should be decoded without an error:

        String source =
            "ARPT=LWUKQPSWRTUN04CKKJI; " +
            "kw-2E343B92-B097-442c-BFA5-BE371E0325A2=unfinished furniture; " +
            "__utma=48461872.1094088325.1258140131.1258140131.1258140131.1; " +
            "__utmb=48461872.13.10.1258140131; __utmc=48461872; " +
            "__utmz=48461872.1258140131.1.1.utmcsr=overstock.com|utmccn=(referral)|" +
            "utmcmd=referral|utmcct=/Home-Garden/Furniture/Clearance,/clearance,/32/dept.html";

What's causing the problem is the comma (,) in the "__utmz" attribute.  According to the relevant RFCs, the cookie value should not contain a comma or should be quoted.  CookieDecoder considers comma as an attribute separator unless it appears as a part of a quoted string.  Hence "/clearance,/32/dept.html" becomes an orphan.

CookieDecoder could become more robust if it does not recognize commas and semicolons as attribute separators if it's impossible to decode the next entry.

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