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feat: core/transport: Add SkipResolver interface #2989

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merged 3 commits into from
Oct 16, 2024

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MarcoPolo
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Fixes an issue where the implied SNI is dropped when connecting over a p2p-circuit address. For example if you connected to a peer over /dns/example.com/wss/p2p/qmFoo/p2p-circuit/p2p/qmTarget the swarm would resolve example.com without preserving the SNI information needed for WSS. The WebSocket transport would only get the IP address of example.com without knowning the host name it needed to use for the SNI.

We had the same problem previously when dialing a wss address. See #1597. This was fixed by letting transports resolve the multiaddr instead of the swarm. This case is similar, except that we want to tell the swarm to just skip resolving altogether since the inner transport will resolve the multiaddr later.

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Comment on lines 47 to 49
// Transport interface
var _ transport.Transport = (*Client)(nil)
var _ transport.SkipResolver = (*Client)(nil)
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Also similar documentation here, so that in case some one does actually embed this, they remember to wrap the SkipResolver interface too.

@MarcoPolo MarcoPolo force-pushed the marco/impl-resolver-circuit-tpt branch from c4880bc to bccdb6a Compare October 7, 2024 21:46
@MarcoPolo MarcoPolo mentioned this pull request Oct 9, 2024
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@MarcoPolo MarcoPolo requested a review from sukunrt October 9, 2024 23:29
@MarcoPolo MarcoPolo changed the base branch from master to marco/filter-dial-addrs October 10, 2024 17:17
@MarcoPolo MarcoPolo force-pushed the marco/impl-resolver-circuit-tpt branch from 76ba58f to ff92001 Compare October 10, 2024 21:43
@MarcoPolo MarcoPolo merged commit 53ffa3f into marco/filter-dial-addrs Oct 16, 2024
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MarcoPolo added a commit that referenced this pull request Oct 16, 2024
* Remove unused resolver in basic host

* Refactor Swarm.resolveAddrs

Refactors how DNS Address resolution works.

* lint

* Move MultiaddrDNSResolver interface to core

* Reserve output space for addresses left to resolve

* feat: core/transport: Add SkipResolver interface (#2989)

* Rebase on top of resolveAddrs refactor

* Add comments

* Sanitize address inputs when returning a reservation message (#3006)
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2 participants