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[#645] client/cache: Check response public key in all client operations

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There is a need to check if public key in the RPC response matches the
public key of the related storage node declared in network map.

Define `ErrWrongPublicKey` error. Implement RPC response handler's
constructor `AssertKeyResponseCallback` which checks public key. Construct
handler and pass it to client's option `WithResponseInfoHandler`.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2021-09-28 09:02:02 +03:00 • committed by Alex Vanin
parent 78e4a87dca
commit 4661f65975
9 changed files with 90 additions and 12 deletions
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4
pkg/network/cache/client.go vendored
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@ -62,7 +62,9 @@ func (c *ClientCache) Get(info clientcore.NodeInfo) (client.Client, error) {
return cli, nil
}
cli := newMultiClient(netAddr, c.opts)
cli := newMultiClient(netAddr, append(c.opts,
client.WithResponseInfoHandler(clientcore.AssertKeyResponseCallback(info.PublicKey())),
))
c.clients[cacheKey] = cli