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The module path becomes sneak.berlin/go/keyfunc, as the repo policy sets for Go modules: go.mod, every import and the -X path in the Makefile. The old path gets no alias. The README gives a go install line for the new path, which resolves with @latest only once main carries the move, and its TODO list now names the open 1.0 issues. Model: opus-5-5
129 lines
2.9 KiB
Go
129 lines
2.9 KiB
Go
package sshkey_test
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import (
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"net"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"github.com/stretchr/testify/require"
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"golang.org/x/crypto/ssh"
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"golang.org/x/crypto/ssh/agent"
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"sneak.berlin/go/keyfunc/internal/derive"
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"sneak.berlin/go/keyfunc/internal/sshkey"
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)
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// agentDirectoryMode is what the directory holding the agent socket
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// has to be: nobody but its owner may enter it.
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const agentDirectoryMode = 0o700
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// exampleIndex is the key index every test here derives at.
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const exampleIndex = 0
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// example returns the mnemonic every BIP-39 document uses to show its
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// test vectors: 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 TestTooFewBytesAreRefused(t *testing.T) {
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t.Parallel()
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_, err := sshkey.New([]byte("short"))
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require.ErrorIs(t, err, sshkey.ErrSize)
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}
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func TestTheCommentIsPutAtTheEndOfTheLine(t *testing.T) {
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t.Parallel()
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key := exampleKey(t)
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line, err := key.Line("hello")
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require.NoError(t, err)
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require.True(t, strings.HasPrefix(line, "ssh-ed25519 "))
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require.True(t, strings.HasSuffix(line, " hello"))
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}
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func TestThePrivateKeyCarriesTheSamePublicKey(t *testing.T) {
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t.Parallel()
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key := exampleKey(t)
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line, err := key.Line("")
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require.NoError(t, err)
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block, err := key.Block("a comment")
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require.NoError(t, err)
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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, line, back)
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}
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func TestTheAgentServesTheOneKeyAndNothingElse(t *testing.T) {
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t.Parallel()
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key := exampleKey(t)
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served, err := key.Serve(t.Context(), "a comment")
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require.NoError(t, err)
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t.Cleanup(served.Stop)
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directory, err := os.Stat(filepath.Dir(served.Socket()))
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require.NoError(t, err)
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require.Equal(t,
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os.FileMode(agentDirectoryMode), directory.Mode().Perm(),
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)
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var dialer net.Dialer
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connection, err := dialer.DialContext(t.Context(), "unix", served.Socket())
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require.NoError(t, err)
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defer func() { _ = connection.Close() }()
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held, err := agent.NewClient(connection).List()
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require.NoError(t, err)
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require.Len(t, held, 1)
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line, err := key.Line("a comment")
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require.NoError(t, err)
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require.Equal(t, line, held[0].String())
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}
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func TestStoppingTheAgentLeavesNothingBehind(t *testing.T) {
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t.Parallel()
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served, err := exampleKey(t).Serve(t.Context(), "a comment")
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require.NoError(t, err)
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directory := filepath.Dir(served.Socket())
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require.DirExists(t, directory)
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served.Stop()
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require.NoDirExists(t, directory)
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var dialer net.Dialer
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_, err = dialer.DialContext(t.Context(), "unix", served.Socket())
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require.Error(t, err)
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}
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// exampleKey derives the key the example mnemonic gives.
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func exampleKey(t *testing.T) *sshkey.Key {
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t.Helper()
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material, err := derive.Bytes(example(), sshkey.Application, exampleIndex)
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require.NoError(t, err)
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key, err := sshkey.New(material)
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require.NoError(t, err)
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return key
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}
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