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| delegated-routing-client |
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| # Delegated Routing V1 Command Line Client | ||
|
|
||
| This is an example of how to use the Delegated Routing V1 HTTP client from Boxo. | ||
| In this package, we build a small command line tool that allows you to connect to | ||
| a Routing V1 endpoint and fetch content providers, peer information, as well as | ||
| IPNS records for a certain IPNS name. | ||
|
|
||
| ## Build | ||
|
|
||
| ```bash | ||
| > go build -o delegated-routing-client | ||
| ``` | ||
|
|
||
| ## Usage | ||
|
|
||
| First, you will need a HTTP endpoint compatible with [Delegated Routing V1 Specification][Specification]. | ||
| For that, you can potentially use [Kubo], which supports [exposing][kubo-conf] | ||
| a `/routing/v1` endpoint. For the commands below, we assume the HTTP server that | ||
| provides the endpoint is `http://127.0.0.1:8080`. | ||
|
|
||
| ### Find CID Providers | ||
|
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| To find providers, provide the flag `-cid` with the [CID] of the content you're looking for: | ||
|
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||
| ```console | ||
| $ ./delegated-routing-client -e http://127.0.0.1:8080 -cid bafkreifjjcie6lypi6ny7amxnfftagclbuxndqonfipmb64f2km2devei4 | ||
|
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| 12D3KooWEfL19QqRGGLraaAYw1XA3dtDdVRYaHt6jymFxcuQo3Zm | ||
| Protocols: [] | ||
| Addresses: [/ip4/163.47.51.218/tcp/28131] | ||
| 12D3KooWK53GAx2g2UUYfJHHjxDbVLeDgGxNMHXDWeJa5KgMhTD2 | ||
| Protocols: [] | ||
| Addresses: [/ip4/195.167.147.43/udp/8888/quic /ip4/195.167.147.43/tcp/8888] | ||
| 12D3KooWCpr8kACTRLKrPy4LPpSX7LXvKQ7eYqTmY8CBvgK5HZgB | ||
| Protocols: [] | ||
| Addresses: [/ip4/163.47.49.234/tcp/28102] | ||
| 12D3KooWC9L4RjPGgqpzBUBkcVpKjJYofCkC5i5QdQftg1LdsFb2 | ||
| Protocols: [] | ||
| Addresses: [/ip4/198.244.201.187/tcp/4001] | ||
| ``` | ||
|
|
||
| ### Find Peer Information | ||
|
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| To find a peer, provide the flag `-peer` with the [Peer ID] of the peer you're looking for: | ||
|
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||
|
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||
| ```console | ||
| $ ./delegated-routing-client -e http://127.0.0.1:8080 -peer 12D3KooWC9L4RjPGgqpzBUBkcVpKjJYofCkC5i5QdQftg1LdsFb2 | ||
|
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| 12D3KooWC9L4RjPGgqpzBUBkcVpKjJYofCkC5i5QdQftg1LdsFb2 | ||
| Protocols: [] | ||
| Addresses: [/ip4/198.244.201.187/tcp/4001] | ||
| ``` | ||
|
|
||
| ### Get an IPNS Record | ||
|
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| To find an IPNS record, provide the flag `-ipns` with the [IPNS Name] you're trying to find a record for: | ||
|
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||
| ```console | ||
| $ ./delegated-routing-client -e http://127.0.0.1:8080 -ipns /ipns/k51qzi5uqu5diuz0h5tjqama8qbmyxusvqz2hfgn5go5l07l9k2ubqa09m7toe | ||
|
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| /ipns/k51qzi5uqu5diuz0h5tjqama8qbmyxusvqz2hfgn5go5l07l9k2ubqa09m7toe | ||
| Value: /ipfs/QmUGMoVz62ZARyxkrdEiwmFZanTwVWLLu6EAWvbWHNcwR8 | ||
| ``` | ||
|
|
||
| [Specification]: https://specs.ipfs.tech/routing/http-routing-v1/ | ||
| [Kubo]: https://github.com/ipfs/kubo | ||
| [kubo-conf]: https://github.com/ipfs/kubo/blob/master/docs/config.md#gatewayexposeroutingapi | ||
| [CID]: https://docs.ipfs.tech/concepts/content-addressing/#what-is-a-cid | ||
| [Peer ID]: https://docs.libp2p.io/concepts/fundamentals/peers/#peer-id | ||
| [IPNS Name]: https://specs.ipfs.tech/ipns/ipns-record/#ipns-name |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "flag" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "os" | ||
| "time" | ||
|
|
||
| "github.com/ipfs/boxo/ipns" | ||
| "github.com/ipfs/boxo/routing/http/client" | ||
| "github.com/ipfs/boxo/routing/http/types" | ||
| "github.com/ipfs/boxo/routing/http/types/iter" | ||
| "github.com/ipfs/go-cid" | ||
| "github.com/libp2p/go-libp2p/core/peer" | ||
| ) | ||
|
|
||
| func main() { | ||
| gatewayUrlPtr := flag.String("e", "", "routing v1 endpoint to use") | ||
| timeoutPtr := flag.Int("t", 10, "timeout in seconds for lookup") | ||
| cidPtr := flag.String("cid", "", "cid to find") | ||
| pidPtr := flag.String("peer", "", "peer to find") | ||
| namePtr := flag.String("ipns", "", "ipns name to retrieve record for") | ||
| flag.Parse() | ||
|
|
||
| if err := run(os.Stdout, *gatewayUrlPtr, *cidPtr, *pidPtr, *namePtr, *timeoutPtr); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } | ||
|
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||
| func run(w io.Writer, gatewayURL, cidStr, pidStr, nameStr string, timeoutSeconds int) error { | ||
| // Creates a new Delegated Routing V1 client. | ||
| client, err := client.New(gatewayURL) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| timeout := time.Duration(timeoutSeconds) * time.Second | ||
| ctx, cancel := context.WithTimeout(context.Background(), timeout) | ||
| defer cancel() | ||
|
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||
| if cidStr != "" { | ||
| return findProviders(w, ctx, client, cidStr) | ||
| } else if pidStr != "" { | ||
| return findPeers(w, ctx, client, pidStr) | ||
| } else if nameStr != "" { | ||
| return findIPNS(w, ctx, client, nameStr) | ||
| } else { | ||
| return errors.New("cid or peer must be provided") | ||
| } | ||
| } | ||
|
|
||
| func findProviders(w io.Writer, ctx context.Context, client *client.Client, cidStr string) error { | ||
| // Parses the given CID to lookup the providers for. | ||
| contentCid, err := cid.Parse(cidStr) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Ask for providers providing the given content CID. | ||
| recordsIter, err := client.FindProviders(ctx, contentCid) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer recordsIter.Close() | ||
| return printIter(w, recordsIter) | ||
| } | ||
|
|
||
| func findPeers(w io.Writer, ctx context.Context, client *client.Client, pidStr string) error { | ||
| // Parses the given Peer ID to lookup the information for. | ||
| pid, err := peer.Decode(pidStr) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Ask for information about the peer with the given peer ID. | ||
| recordsIter, err := client.FindPeers(ctx, pid) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer recordsIter.Close() | ||
| return printIter(w, recordsIter) | ||
| } | ||
|
|
||
| func printIter(w io.Writer, iter iter.ResultIter[types.Record]) error { | ||
| // The response is streamed. Alternatively, you could use [iter.ReadAll] | ||
| // to fetch all the results all at once, instead of iterating as they are | ||
| // streamed. | ||
| for iter.Next() { | ||
| res := iter.Val() | ||
|
|
||
| // Check for error, but do not complain if we exceeded the timeout. We are | ||
| // expecting that to happen: we explicitly defined a timeout. | ||
| if res.Err != nil { | ||
| if !errors.Is(res.Err, context.DeadlineExceeded) { | ||
| return res.Err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| switch res.Val.GetSchema() { | ||
| case types.SchemaPeer: | ||
| record := res.Val.(*types.PeerRecord) | ||
| fmt.Fprintln(w, record.ID) | ||
| fmt.Fprintln(w, "\tProtocols:", record.Protocols) | ||
| fmt.Fprintln(w, "\tAddresses:", record.Addrs) | ||
| default: | ||
| // You may not want to fail here, it's up to you. You can just handle | ||
| // the schemas you want, or that you know, but not fail. | ||
| log.Printf("unrecognized schema: %s", res.Val.GetSchema()) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
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| func findIPNS(w io.Writer, ctx context.Context, client *client.Client, nameStr string) error { | ||
| // Parses the given name string to get a record for. | ||
| name, err := ipns.NameFromString(nameStr) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Fetch an IPNS record for the given name. [client.Client.GetIPNS] verifies | ||
| // if the retrieved record is valid against the given name, and errors otherwise. | ||
| record, err := client.GetIPNS(ctx, name) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| fmt.Fprintf(w, "/ipns/%s\n", name) | ||
| v, err := record.Value() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Since [client.Client.GetIPNS] verifies if the retrieved record is valid, we | ||
| // do not need to verify it again. However, if you were not using this specific | ||
| // client, but using some other tool, you should always validate the IPNS Record | ||
| // using the [ipns.Validate] or [ipns.ValidateWithName] functions. | ||
| fmt.Fprintln(w, "\tSignature: VALID") | ||
| fmt.Fprintln(w, "\tValue:", v.String()) | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "crypto/rand" | ||
| "fmt" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/ipfs/boxo/coreiface/path" | ||
| "github.com/ipfs/boxo/ipns" | ||
| ipfspath "github.com/ipfs/boxo/path" | ||
| "github.com/ipfs/go-cid" | ||
| "github.com/libp2p/go-libp2p/core/crypto" | ||
| "github.com/libp2p/go-libp2p/core/peer" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
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| func TestFindProviders(t *testing.T) { | ||
| cidStr := "bafkreifjjcie6lypi6ny7amxnfftagclbuxndqonfipmb64f2km2devei4" | ||
|
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| ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| if r.URL.Path == "/routing/v1/providers/"+cidStr { | ||
| w.Header().Set("Content-Type", "application/x-ndjson") | ||
| w.Write([]byte(`{"Schema":"peer","ID":"12D3KooWM8sovaEGU1bmiWGWAzvs47DEcXKZZTuJnpQyVTkRs2Vn","Addrs":["/ip4/111.222.222.111/tcp/5734"],"Protocols":["transport-bitswap"]}` + "\n")) | ||
| w.Write([]byte(`{"Schema":"peer","ID":"12D3KooWB6RAWgcmHAP7TGEGK7utV2ZuqSzX1DNjRa97TtJ7139n","Addrs":["/ip4/127.0.0.1/tcp/5734"],"Protocols":["transport-horse"]}` + "\n")) | ||
| } | ||
| })) | ||
| t.Cleanup(ts.Close) | ||
|
|
||
| out := &bytes.Buffer{} | ||
| err := run(out, ts.URL, cidStr, "", "", 1) | ||
| assert.Contains(t, out.String(), "12D3KooWM8sovaEGU1bmiWGWAzvs47DEcXKZZTuJnpQyVTkRs2Vn\n\tProtocols: [transport-bitswap]\n\tAddresses: [/ip4/111.222.222.111/tcp/5734]\n") | ||
| assert.Contains(t, out.String(), "12D3KooWB6RAWgcmHAP7TGEGK7utV2ZuqSzX1DNjRa97TtJ7139n\n\tProtocols: [transport-horse]\n\tAddresses: [/ip4/127.0.0.1/tcp/5734]\n") | ||
| assert.NoError(t, err) | ||
| } | ||
|
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| func TestFindPeers(t *testing.T) { | ||
| pidStr := "bafzaajaiaejcbkboq2tin6dkdc2vinbbn2dgowzn3u5izpjwxejheogw23scafkz" | ||
|
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| ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| if r.URL.Path == "/routing/v1/peers/"+pidStr { | ||
| w.Header().Set("Content-Type", "application/x-ndjson") | ||
| w.Write([]byte(`{"Schema":"peer","ID":"12D3KooWM8sovaEGU1bmiWGWAzvs47DEcXKZZTuJnpQyVTkRs2Vn","Addrs":["/ip4/111.222.222.111/tcp/5734"],"Protocols":["transport-bitswap"]}` + "\n")) | ||
| } | ||
| })) | ||
| t.Cleanup(ts.Close) | ||
|
|
||
| out := &bytes.Buffer{} | ||
| err := run(out, ts.URL, "", pidStr, "", 1) | ||
| assert.Contains(t, out.String(), "12D3KooWM8sovaEGU1bmiWGWAzvs47DEcXKZZTuJnpQyVTkRs2Vn\n\tProtocols: [transport-bitswap]\n\tAddresses: [/ip4/111.222.222.111/tcp/5734]\n") | ||
| assert.NoError(t, err) | ||
| } | ||
|
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| func TestGetIPNS(t *testing.T) { | ||
| name, rec := makeNameAndRecord(t) | ||
|
|
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| ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| if r.URL.Path == "/routing/v1/ipns/"+name.String() { | ||
| w.Header().Set("Content-Type", "application/vnd.ipfs.ipns-record") | ||
| w.Write(rec) | ||
| } | ||
| })) | ||
| t.Cleanup(ts.Close) | ||
|
|
||
| out := &bytes.Buffer{} | ||
| err := run(out, ts.URL, "", "", name.String(), 1) | ||
| assert.Contains(t, out.String(), fmt.Sprintf("/ipns/%s\n\tSignature: VALID\n\tValue: /ipfs/bafkreifjjcie6lypi6ny7amxnfftagclbuxndqonfipmb64f2km2devei4\n", name.String())) | ||
| assert.NoError(t, err) | ||
| } | ||
|
|
||
| func makeNameAndRecord(t *testing.T) (ipns.Name, []byte) { | ||
| sk, _, err := crypto.GenerateEd25519Key(rand.Reader) | ||
| require.NoError(t, err) | ||
|
|
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| pid, err := peer.IDFromPrivateKey(sk) | ||
| require.NoError(t, err) | ||
|
|
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| cid, err := cid.Decode("bafkreifjjcie6lypi6ny7amxnfftagclbuxndqonfipmb64f2km2devei4") | ||
| require.NoError(t, err) | ||
|
|
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| path := path.IpfsPath(cid) | ||
| eol := time.Now().Add(time.Hour * 48) | ||
| ttl := time.Second * 20 | ||
|
|
||
| record, err := ipns.NewRecord(sk, ipfspath.FromString(path.String()), 1, eol, ttl) | ||
| require.NoError(t, err) | ||
|
|
||
| rawRecord, err := ipns.MarshalRecord(record) | ||
| require.NoError(t, err) | ||
|
|
||
| return ipns.NameFromPeer(pid), rawRecord | ||
| } |
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