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https://issues.apache.org/jira/browse/HTTPCLIENT-2350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17898876#comment-17898876
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Oleg Kalnichevski commented on HTTPCLIENT-2350:
-----------------------------------------------
[~namloan] Please take a look at the proposed solution and let us know if that
resolves the issue for you
[https://github.com/apache/httpcomponents-client/pull/598]
Oleg
> Option to prevent hostname resolution to InetAddress
> ----------------------------------------------------
>
> Key: HTTPCLIENT-2350
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2350
> Project: HttpComponents HttpClient
> Issue Type: Improvement
> Components: HttpClient (classic)
> Affects Versions: 5.4.1
> Reporter: namloan
> Priority: Major
> Fix For: 5.5-alpha1
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> In Bisq2 [1] we are querying .onion endpoints through HTTP to retrieve some
> data. To do this, it's needed to connect to through a SOCKS proxy and let it
> resolve the hostname through the Tor network as a public DNS resolution will
> fail. In HTTP client 4.x we had it implemented as explained in [2]- using a
> FakeDNSResolver and custom socket factories that do not try to resolve the
> .onion hostname to an InetAddress.
>
> We've just migrated to HttpClient 5.4.1. Finding out how to do this required
> extensive hours of debugging the library, in particular preventing the public
> DNS resolution as custom socket factories are deprecated. Find our solution
> in [3]. In essence, we created our own PoolingTorHttpClientConnectionManager
> to be able to inject our own HttpClientConnectionOperator that doesn't
> attempt to resolve the .onion hostname to an InetAddress [4]
> Is there a simpler way to do this? If not, it would be great to count on a
> simpler option so that we can remove our own connection manager and
> connection operator given that they are mostly duplicated code from the
> library.
>
> [1] [https://github.com/bisq-network/bisq2]
> [2]
> [http://stackoverflow.com/a/25203021/5616248|http://stackoverflow.com/a/25203021/5616248)]
> [3]
> [https://github.com/bisq-network/bisq2/pull/2990/commits/f93ece314fd16036e0d748ce2c6d9f79ba10e762]
> [4]
> [https://github.com/bisq-network/bisq2/blob/main/network/network/src/main/java/bisq/network/http/TorHttpClientConnectionOperator.java#L117-L119]
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