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The module, the script entrypoints and Makefile, Docker-only linting, the mnemonic sources in the specified order with their refusals, the BIP-85 derivation, and keyfunc ssh pub and priv with the README test vectors as tests. Two review rounds; the second passed with no findings. Model: opus-5 (implementation and review); fable-5-1 (landing)
111 lines
2.6 KiB
Go
111 lines
2.6 KiB
Go
package cli_test
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import (
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"bytes"
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"strings"
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"testing"
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"git.eeqj.de/sneak/keyfunc/internal/cli"
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"git.eeqj.de/sneak/keyfunc/internal/derive"
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"git.eeqj.de/sneak/keyfunc/internal/mnemonic"
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"github.com/stretchr/testify/require"
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"golang.org/x/crypto/ssh"
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)
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// The two lines the README says the example mnemonic produces.
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const (
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vectorZero = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJZOtOczrc/7CQytc" +
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"uFwt7s4r8KjkZWkwjLZWBaFKD+7"
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vectorOne = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOEWY8+/gmHYVC4u0Y" +
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"0I4FKs+eVUulTPHfk9VtXw1tMF"
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)
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// example returns the mnemonic the README gives its test vectors for:
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// eleven abandons and about.
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func example() string {
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return strings.Repeat("abandon ", 11) + "about"
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}
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func TestTheReadmeTestVectors(t *testing.T) {
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t.Setenv(mnemonic.Variable, example())
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require.Equal(t,
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vectorZero+" keyfunc/ssh/0",
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strings.TrimSpace(run(t, "ssh", "pub", "-n", "0")),
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)
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require.Equal(t,
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vectorOne+" keyfunc/ssh/1",
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strings.TrimSpace(run(t, "ssh", "pub", "-n", "1")),
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)
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}
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func TestTheCommentCanBeChosen(t *testing.T) {
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t.Setenv(mnemonic.Variable, example())
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line := strings.TrimSpace(run(t, "ssh", "pub", "--comment", "mine"))
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require.Equal(t, vectorZero+" mine", line)
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}
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func TestThePrivateKeyMatchesThePublicOne(t *testing.T) {
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t.Setenv(mnemonic.Variable, example())
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block := run(t, "ssh", "priv", "-n", "1")
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require.True(t,
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strings.HasPrefix(block, "-----BEGIN OPENSSH PRIVATE KEY-----"),
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)
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parsed, err := ssh.ParsePrivateKey([]byte(block))
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require.NoError(t, err)
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back := strings.TrimSpace(
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string(ssh.MarshalAuthorizedKey(parsed.PublicKey())),
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)
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require.Equal(t, vectorOne, back)
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}
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func TestAnIndexWithNoHardenedChildIsRefused(t *testing.T) {
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t.Setenv(mnemonic.Variable, example())
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out, err := execute(t, "ssh", "pub", "-n", "2147483648")
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require.ErrorIs(t, err, derive.ErrIndexTooLarge)
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require.Empty(t, out)
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}
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func TestTheMnemonicCommandIsUsed(t *testing.T) {
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t.Setenv(mnemonic.Variable, "")
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line := strings.TrimSpace(run(t,
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"ssh", "pub",
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"--mnemonic-command", "printf '%s\\n' '"+example()+"'",
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))
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require.Equal(t, vectorZero+" keyfunc/ssh/0", line)
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}
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// run executes the tool with the given arguments and returns what it
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// wrote to standard output.
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func run(t *testing.T, args ...string) string {
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t.Helper()
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out, err := execute(t, args...)
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require.NoError(t, err)
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return out
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}
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// execute runs the tool and returns both what it wrote and how it
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// ended.
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func execute(t *testing.T, args ...string) (string, error) {
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t.Helper()
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var out bytes.Buffer
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root := cli.Root()
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root.SetOut(&out)
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root.SetErr(&out)
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root.SetArgs(args)
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err := root.ExecuteContext(t.Context())
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return out.String(), err
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}
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