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https://issues.apache.org/jira/browse/HTTPCLIENT-1698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334874#comment-17334874
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Babu Reddy commented on HTTPCLIENT-1698:
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[~olegk], Even in 4.5.13 version, the verify method(verify(String host,
X509Certificate cert)), is not recognizing IPV6 host([2001:db8::2:1]) as ipv6
address because of the square brackets.
InetAddressUtils.isIPv6Address method always return false if a host with square
brackets is passed to it. Hence the same exception is thrown even after
upgrading to 4.5.13 of HttpClient.
> Hostname verification fails when using URL with literal IPv6 address
> --------------------------------------------------------------------
>
> Key: HTTPCLIENT-1698
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1698
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 4.4.1
> Reporter: Jens Borgland
> Priority: Minor
> Fix For: 5.0 Alpha1
>
>
> Repro steps:
> # Set up an HTTPS server with proper certificates (with the IPv6 address as a
> subject alternative name)
> # Set up HttpClient with the DefaultHostnameVerifier
> # Try to contact the server using the IPv6 address (in square brackets in
> accordance with RFC 2732) in the URL, something like:
> https://[2001:db8::2:1]:443/example
> Result:
> An SSLPeerUnverifiedException (note the square brackets):
> {noformat}
> Host name '[2001:db8::2:1]' does not match the certificate subject provided
> by the peer <redacted>
> {noformat}
> *Expected*:
> The hostname verification to work
> ({{org.apache.http.conn.ssl.SSLConnectionSocketFactory}} should feed just the
> IP address, without square brackets, to the HostnameVerifier).
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