Andreas Wundsam created HTTPCLIENT-1795:
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Summary: Http Client does not support RFC-compliant quoted IPv6
Link-Local host literals
Key: HTTPCLIENT-1795
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1795
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpClient (async)
Affects Versions: 4.5.2
Reporter: Andreas Wundsam
[RFC 6874|https://tools.ietf.org/html/rfc6874] states that, when constructing a
URL with an LLv6 literal, the {{%}} sign that prefixes the ZoneID must be
quoted as {{%25}}. (Formally, this is specified in ).
httpclient does not seem to supported version.
Example:
{code}
Request.Get("http://[fe80::221:b7ff:fe8a:57d5%25en4]/";)
.connectTimeout(1000)
.socketTimeout(1000)
.execute().returnContent().asString();
{code}
results in
{noformat}
java.net.UnknownHostException: no such interface 25en4
at java.net.Inet6Address.initstr(Inet6Address.java:487)
at java.net.Inet6Address.<init>(Inet6Address.java:408)
at java.net.InetAddress.getAllByName(InetAddress.java:1181)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at
org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)
at
org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:111)
at
org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at
org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
at
org.apache.http.client.fluent.Request.internalExecute(Request.java:173)
at org.apache.http.client.fluent.Request.execute(Request.java:177)
at Test.name(Test.java:12)
[...]
{noformat}
It appears that httpclient directly passes the host literal
{{[fe80::221:b7ff:fe8a:57d5%25en4]}} to the Java standard method
{{InetAddress.getAllByName(host)}}, which does not support the URL quoting that
RFC 6874 prescribes.
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