leetcrypt
59af53dcc0
Implements the Rotator interface across all four rotation patterns, each a self-contained one-file driver self-registering via init(): in-place DB password postgres, mysql (3-stmt unprivileged fallback), redis local keypair + propagate sshkey (ed25519), wireguard (clamped curve25519) provider-API token gitea PAT, mullvad device key cloud-key self-identifying aws IAM access key (hand-rolled SigV4, no SDK dep) Spine (execute.go) enforces Hard Rule #2: backup -> rotate -> verify(new) -> store -> re-read+verify -> revoke-old; dryrun.go keeps --execute gated. Each driver ships a table-driven test proving real cutover (old secret stops authenticating) and asserting no secret substring leaks to argv/Meta/errors. Promotes golang.org/x/crypto to a direct dependency. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
package rotate
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import (
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"context"
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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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"incredigo/internal/discover"
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"incredigo/internal/vault"
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)
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// writeFakeRedisCli writes a stub `redis-cli` that emulates AUTH against a state
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// file holding the instance's CURRENT requirepass. CONFIG SET requirepass updates
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// the state (only if REDISCLI_AUTH matched the current password); PING succeeds only
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// when REDISCLI_AUTH matches. This lets a test prove a real cutover: after Rotate
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// the OLD password must stop authenticating. It models redis-cli's behaviour of
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// printing "(error) ..." replies on stdout while still exiting 0.
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func writeFakeRedisCli(t *testing.T, statePath string) string {
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t.Helper()
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dir := t.TempDir()
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p := filepath.Join(dir, "redis-cli")
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script := `#!/usr/bin/env bash
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set -uo pipefail
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cmd="$(cat)"
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cur="$(cat "` + statePath + `" 2>/dev/null || true)"
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# If a password is set on the instance, an authless or wrong-password client fails.
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if [ -n "$cur" ] && [ "${REDISCLI_AUTH:-}" != "$cur" ]; then
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echo "(error) WRONGPASS invalid username-password pair"; exit 0
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fi
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case "$cmd" in
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"CONFIG SET requirepass "*)
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np="${cmd#CONFIG SET requirepass }"
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printf '%s' "$np" > "` + statePath + `"
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echo "OK"; exit 0 ;;
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"PING"*)
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echo "PONG"; exit 0 ;;
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*) echo "(error) ERR unknown command"; exit 0 ;;
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esac
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`
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if err := os.WriteFile(p, []byte(script), 0o755); err != nil {
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t.Fatal(err)
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}
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return p
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}
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func TestRedisDetect(t *testing.T) {
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r := &Redis{}
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if !r.Detect(discover.Credential{Source: "redis"}) {
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t.Error("should detect Source=redis")
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}
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if r.Detect(discover.Credential{Source: "mysql"}) {
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t.Error("should not detect Source=mysql")
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}
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}
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func TestRedisRotateRealCutover(t *testing.T) {
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state := filepath.Join(t.TempDir(), "pw")
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if err := os.WriteFile(state, []byte("oldpw"), 0o600); err != nil {
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t.Fatal(err)
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}
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t.Setenv("REDISCLI_AUTH", "") // ensure the driver, not the env, supplies it
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r := &Redis{Bin: writeFakeRedisCli(t, state)}
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v := vault.New()
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defer v.Purge()
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oldURL := "redis://:oldpw@127.0.0.1:6379"
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cred := discover.Credential{Source: "redis", Identity: "redis@127.0.0.1", Secret: v.Store([]byte(oldURL))}
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ctx := context.Background()
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newH, err := r.Rotate(ctx, cred, v)
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if err != nil {
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t.Fatalf("Rotate: %v", err)
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}
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if cur, _ := os.ReadFile(state); string(cur) == "oldpw" {
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t.Fatal("password not changed by CONFIG SET requirepass")
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}
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if err := r.Verify(ctx, newH, v); err != nil {
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t.Errorf("Verify(new) should pass: %v", err)
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}
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if err := r.Verify(ctx, cred.Secret, v); err == nil {
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t.Error("Verify(old) must fail after rotation — old password should be revoked")
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} else if strings.Contains(err.Error(), "oldpw") {
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t.Error("error leaked the old password")
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}
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if err := r.RevokeOld(ctx, cred, v); err != nil {
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t.Errorf("RevokeOld (no-op) returned: %v", err)
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}
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}
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func TestRedisRejectsNonRedisURL(t *testing.T) {
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r := &Redis{Bin: "/bin/false"}
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v := vault.New()
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defer v.Purge()
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cred := discover.Credential{Source: "redis", Secret: v.Store([]byte("postgres://u:p@h/db"))}
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if _, err := r.Rotate(context.Background(), cred, v); err == nil {
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t.Error("Rotate should reject a non-redis scheme")
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}
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}
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