67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
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package garage
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import (
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"crypto/ed25519"
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"encoding/hex"
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"fmt"
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"net"
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"strconv"
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)
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// Peer describes all information necessary to connect to a given garage node.
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type Peer struct {
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IP string
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RPCPort int
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S3APIPort int
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}
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// RPCPeerKey deterministically generates a public/private keys which can
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// be used as a garage node key.
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//
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// DANGER: This function will deterministically produce public/private keys
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// given some arbitrary input. This is NEVER what you want. It's only being used
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// in cryptic-net for a very specific purpose for which I think it's ok and is
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// very necessary, and people are probably _still_ going to yell at me.
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//
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func (p Peer) RPCPeerKey() (pubKey, privKey []byte) {
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input := []byte(net.JoinHostPort(p.IP, strconv.Itoa(p.RPCPort)))
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// Append the length of the input to the input, so that the input "foo"
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// doesn't generate the same key as the input "foofoo".
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input = strconv.AppendInt(input, int64(len(input)), 10)
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pubKey, privKey, err := ed25519.GenerateKey(NewInfiniteReader(input))
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if err != nil {
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panic(err)
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}
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return pubKey, privKey
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}
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// RPCPeerID returns the peer ID of the garage node for use in communicating
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// over RPC.
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//
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// DANGER: See warning on RPCPeerKey.
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func (p Peer) RPCPeerID() string {
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pubKey, _ := p.RPCPeerKey()
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return hex.EncodeToString(pubKey)
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}
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// RPCAddr returns the address of the peer's RPC port.
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func (p Peer) RPCAddr() string {
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return net.JoinHostPort(p.IP, strconv.Itoa(p.RPCPort))
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}
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// RPCPeerAddr returns the full peer address (e.g. "id@ip:port") of the garage
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// node for use in communicating over RPC.
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//
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// DANGER: See warning on RPCPeerKey.
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func (p Peer) RPCPeerAddr() string {
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return fmt.Sprintf("%s@%s", p.RPCPeerID(), p.RPCAddr())
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}
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// S3APIAddr returns the address of the peer's S3 API port.
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func (p Peer) S3APIAddr() string {
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return net.JoinHostPort(p.IP, strconv.Itoa(p.S3APIPort))
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}
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