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fix: make getPeerId return the target peer id from relay addrs #325

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merged 3 commits into from
Jul 28, 2023
Merged

fix: make getPeerId return the target peer id from relay addrs #325

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72831c1
fix: make getPeerId return the target peer id from relay addresses
achingbrain May 11, 2023
d44d90a
Merge branch 'master' into fix/return-relay-target-peer-id
achingbrain Jul 28, 2023
b76dd5d
Merge branch 'master' into fix/return-relay-target-peer-id
achingbrain Jul 28, 2023
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17 changes: 12 additions & 5 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -635,14 +635,21 @@ class DefaultMultiaddr implements Multiaddr {

getPeerId (): string | null {
try {
const tuples = this.stringTuples().filter((tuple) => {
if (tuple[0] === names.ipfs.code) {
return true
let tuples: Array<[number, string | undefined]> = []

this.stringTuples().forEach(([code, name]) => {
if (code === names.p2p.code) {
tuples.push([code, name])
}

// if this is a p2p-circuit address, return the target peer id if present
// not the peer id of the relay
if (code === names['p2p-circuit'].code) {
tuples = []
}
Comment on lines +641 to 649
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i find it confusing that we push to tuples and then empty tuples if p2p-circuit is found.

Could this result in (eventually longer and currently unknown) multiaddr tuples being removed that shouldn't? Instead, should we just not call tuples.push if it's the p2p-circuit case for the current code?

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I don't think so, because circuit relay addresses are not supposed to be relayed themselves so whatever is after p2p-circuit should be what we are interested in.

We reset the tuples because whatever was before the p2p-circuit tuple is the relay address and we're trying to extract the PeerId of the target, not the relay.

It's trying to handle the case of:

/ip4/foo/p2p/QmRelay/p2p-circuit -> should return null not QmRelay

return false
})

// Get the last ipfs tuple ['ipfs', 'peerid string']
// Get the last ipfs tuple ['p2p', 'peerid string']
const tuple = tuples.pop()
if (tuple?.[1] != null) {
const peerIdStr = tuple[1]
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5 changes: 5 additions & 0 deletions test/index.spec.ts
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Expand Up @@ -997,6 +997,11 @@ describe('helpers', () => {
multiaddr('/p2p-circuit/p2p/12D3KooWNvSZnPi3RrhrTwEY4LuuBeB6K6facKUCJcyWG1aoDd2p').getPeerId()
).to.equal('12D3KooWNvSZnPi3RrhrTwEY4LuuBeB6K6facKUCJcyWG1aoDd2p')
})
it('does not extract a peer Id from a circuit relay multiaddr where only the relay peer id is present', () => {
expect(
multiaddr('/ip4/127.0.0.1/tcp/123/p2p/bafzbeigweq4zr4x4ky2dvv7nanbkw6egutvrrvzw6g3h2rftp7gidyhtt4/p2p-circuit').getPeerId()
).to.be.null()
})
Comment on lines +1000 to +1004
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the positive test case (peerId of relayed peer exists) already exists in the tests from what I can see. However, do we need to check a case where we have something like

/ip4/127.0.0.1/tcp/123/p2p/bafzbeigweq4zr4x4ky2dvv7nanbkw6egutvrrvzw6g3h2rftp7gidyhtt4/p2p-circuit/p2p/bafzbeidt255unskpefjmqb2rc27vjuyxopkxgaylxij6pw35hhys4vnyp4

to make sure the correct peer ID is returned when there are two?

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I think we have this in the 'extracts the correct peer Id from a circuit multiaddr' test?

})

describe('.getPeerId should return null on missing peer id in multiaddr', () => {
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