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https://issues.apache.org/jira/browse/HTTPCLIENT-987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Moore updated HTTPCLIENT-987:
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Attachment: canonical-uris.patch
The attached patch addresses this issue (mostly updates to the URIExtractor
class).
This patch is contributed with the permission of my employer.
> cache module does not recognize equivalent URIs
> -----------------------------------------------
>
> Key: HTTPCLIENT-987
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-987
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: Cache
> Affects Versions: 4.1 Alpha2
> Reporter: Jonathan Moore
> Attachments: canonical-uris.patch
>
>
> http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.2.3
> "When comparing two URIs to decide if they match or not, a client SHOULD use
> a case-sensitive octet-by-octet comparison of the entire URIs, with these
> exceptions:
> * A port that is empty or not given is equivalent to the default port for
> that URI-reference;
> * Comparisons of host names MUST be case-insensitive;
> * Comparisons of scheme names MUST be case-insensitive;
> * An empty abs_path is equivalent to an abs_path of "/".
> Characters other than those in the "reserved" and "unsafe" sets (see RFC 2396
> [42]) are equivalent to their ""%" HEX HEX" encoding.
> For example, the following three URIs are equivalent:
> http://abc.com:80/~smith/home.html
> http://ABC.com/%7Esmith/home.html
> http://ABC.com:/%7esmith/home.html";
> The current implementation does not canonicalize the URIs it uses for cache
> keys, and so is missing potential cache hits. More importantly, though,
> required invalidations due to PUT/POST/DELETE to a URI (as well as those
> mentioned in Location or Content-Location headers) may not occur properly due
> to this bug.
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