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https://issues.apache.org/jira/browse/HTTPCORE-738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17709000#comment-17709000
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Julian Reschke commented on HTTPCORE-738:
-----------------------------------------
Please see the ABNF for "pchar" in
https://www.rfc-editor.org/rfc/rfc3986#section-3.3:
pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
"*" is in sub-delims and thus does not need to be encoded.
> URIBuilder - path with asterisk * is encoded differently compared to
> java.lang.URI
> ----------------------------------------------------------------------------------
>
> Key: HTTPCORE-738
> URL: https://issues.apache.org/jira/browse/HTTPCORE-738
> Project: HttpComponents HttpCore
> Issue Type: Bug
> Components: HttpCore
> Affects Versions: 5.2.1
> Reporter: Florin Slev
> Priority: Major
>
> It seems Apache URIBuilder encodes URL asterisk characters as %2A.
> While java.lang.URI doesn't:
>
> {code:java}
> final URI uri = new URI("http", null, "localhost", 80, "/books*", null,
> null);
> final URIBuilder uribuilder = new
> URIBuilder().setScheme("http").setHost("localhost").setPort(80).setPath("/books*");
> final URI result = uribuilder.build();
> assertEquals(uri, result);
> {code}
> =>
> {code}
> expected: <http://localhost:80/books*> but was: <http://localhost:80/books%2A>
> {code}
> According to https://www.rfc-editor.org/rfc/rfc1738.txt
> {code}
> Reserved:
> Usually a URL has the same interpretation when an octet is
> represented by a character and when it encoded. However, this is not
> true for reserved characters: encoding a character reserved for a
> particular scheme may change the semantics of a URL.
> Thus, only alphanumerics, the special characters "$-_.+!*'(),", and
> reserved characters used for their reserved purposes may be used
> unencoded within a URL.
> {code}
> Is the the encoding of asterisk and the whole set of special chars from the
> RFC above $-_.+!*'() intended inside Apache URIBuilder ?
> My use case is that I'm using Apache HTTP client to send requests to a remote
> endpoint containing * inside the URL. The server does not recognize the %2A
> encoding. I have to explicitly decode it back to asterisk * in order to work.
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