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d0ec940dd7
resolves git conflicts from #3896 (credit to @belak, in case github doesn't keep original author during squash) Co-Authored-By: Matti Ranta <techknowlogick@gitea.io>
46 lines
1.7 KiB
Go
46 lines
1.7 KiB
Go
/*
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Package ssh wraps the crypto/ssh package with a higher-level API for building
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SSH servers. The goal of the API was to make it as simple as using net/http, so
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the API is very similar.
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You should be able to build any SSH server using only this package, which wraps
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relevant types and some functions from crypto/ssh. However, you still need to
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use crypto/ssh for building SSH clients.
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ListenAndServe starts an SSH server with a given address, handler, and options. The
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handler is usually nil, which means to use DefaultHandler. Handle sets DefaultHandler:
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ssh.Handle(func(s ssh.Session) {
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io.WriteString(s, "Hello world\n")
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})
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log.Fatal(ssh.ListenAndServe(":2222", nil))
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If you don't specify a host key, it will generate one every time. This is convenient
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except you'll have to deal with clients being confused that the host key is different.
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It's a better idea to generate or point to an existing key on your system:
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log.Fatal(ssh.ListenAndServe(":2222", nil, ssh.HostKeyFile("/Users/progrium/.ssh/id_rsa")))
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Although all options have functional option helpers, another way to control the
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server's behavior is by creating a custom Server:
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s := &ssh.Server{
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Addr: ":2222",
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Handler: sessionHandler,
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PublicKeyHandler: authHandler,
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}
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s.AddHostKey(hostKeySigner)
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log.Fatal(s.ListenAndServe())
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This package automatically handles basic SSH requests like setting environment
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variables, requesting PTY, and changing window size. These requests are
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processed, responded to, and any relevant state is updated. This state is then
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exposed to you via the Session interface.
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The one big feature missing from the Session abstraction is signals. This was
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started, but not completed. Pull Requests welcome!
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*/
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package ssh
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