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https://issues.apache.org/jira/browse/HTTPCORE-674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17327251#comment-17327251
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Michael Osipov edited comment on HTTPCORE-674 at 4/22/21, 10:17 AM:
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>From RFC 3986:
{noformat}
A host identified by an IPv6 literal address is represented inside
the square brackets without a preceding version flag. The ABNF
provided here is a translation of the text definition of an IPv6
literal address provided in [RFC3513]. This syntax does not support
IPv6 scoped addressing zone identifiers.
{noformat}
So if {{HttpHost}}/{{Host}} aren't use in core for HTTP servers, I see no use
for client for now.
was (Author: michael-o):
>From RFC 3986:
{noformat}
A host identified by an IPv6 literal address is represented inside
the square brackets without a preceding version flag. The ABNF
provided here is a translation of the text definition of an IPv6
literal address provided in [RFC3513]. This syntax does not support
IPv6 scoped addressing zone identifiers.
{noformat}
> InetAddressUtils scoped ID support
> ----------------------------------
>
> Key: HTTPCORE-674
> URL: https://issues.apache.org/jira/browse/HTTPCORE-674
> Project: HttpComponents HttpCore
> Issue Type: Task
> Components: HttpCore
> Affects Versions: 5.1
> Reporter: Carter Kozak
> Priority: Major
>
> This is a remaining piece of
> https://issues.apache.org/jira/browse/HTTPCORE-616
> org.apache.hc.core5.net.InetAddressUtils: Parsing may fail when an IPv6 scope
> id might be provided.
> The following should likely succeed, but currently does not:
> {code:java}
> @Test
> public void testScopedIPv6Address() {
>
> Assert.assertTrue(InetAddressUtils.isIPv6Address("fe80::1ff:fe23:4567:890a"));
>
> Assert.assertTrue(InetAddressUtils.isIPv6Address("fe80::1ff:fe23:4567:890a%eth2"));
>
> Assert.assertTrue(InetAddressUtils.isIPv6Address("fe80::1ff:fe23:4567:890a%3"));
> }
> {code}
> This feature will impact parsing as well as detection, because as I
> understand it {{fe80::1ff:fe23:4567:890a%eth2"}} is URI encoded as
> {{https://[fe80::1ff:fe23:4567:890a%25eth2]:443/}} (note the {{%}} is
> percent-encoded to {{%25}}).
> This is based on a quick look at the ipv6 wiki page, I need to read though
> the current RFC guidance to verify the data I've provided is accurate.
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