Kyle Isom
cbd77c58e8
Add complete transit engine supporting symmetric encryption (AES-256-GCM, XChaCha20-Poly1305), asymmetric signing (Ed25519, ECDSA P-256/P-384), and HMAC (SHA-256/SHA-512) with versioned key rotation, min decryption version enforcement, key trimming, batch operations, and rewrap. Includes proto definitions, gRPC handlers, REST routes, and comprehensive tests covering all 18 operations, auth enforcement, and edge cases. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
914 lines
29 KiB
Go
914 lines
29 KiB
Go
package server
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import (
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"encoding/json"
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"errors"
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"io"
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"net/http"
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"strings"
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"github.com/go-chi/chi/v5"
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mcias "git.wntrmute.dev/kyle/mcias/clients/go"
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"git.wntrmute.dev/kyle/metacrypt/internal/crypto"
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"git.wntrmute.dev/kyle/metacrypt/internal/engine"
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"git.wntrmute.dev/kyle/metacrypt/internal/engine/ca"
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"git.wntrmute.dev/kyle/metacrypt/internal/policy"
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"git.wntrmute.dev/kyle/metacrypt/internal/seal"
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)
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func (s *Server) registerRoutes(r chi.Router) {
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// REST API routes — web UI served by metacrypt-web.
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r.Get("/v1/status", s.handleStatus)
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r.Post("/v1/init", s.handleInit)
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r.Post("/v1/unseal", s.handleUnseal)
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r.Post("/v1/seal", s.requireAdmin(s.handleSeal))
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r.Post("/v1/auth/login", s.handleLogin)
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r.Post("/v1/auth/logout", s.requireAuth(s.handleLogout))
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r.Get("/v1/auth/tokeninfo", s.requireAuth(s.handleTokenInfo))
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r.Get("/v1/engine/mounts", s.requireAuth(s.handleEngineMounts))
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r.Post("/v1/engine/mount", s.requireAdmin(s.handleEngineMount))
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r.Post("/v1/engine/unmount", s.requireAdmin(s.handleEngineUnmount))
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r.Post("/v1/engine/request", s.requireAuth(s.handleEngineRequest))
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// CA certificate routes (auth required).
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r.Get("/v1/ca/{mount}/cert/{serial}", s.requireAuth(s.handleGetCert))
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r.Post("/v1/ca/{mount}/cert/{serial}/revoke", s.requireAdmin(s.handleRevokeCert))
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r.Delete("/v1/ca/{mount}/cert/{serial}", s.requireAdmin(s.handleDeleteCert))
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// Public PKI routes (no auth required, but must be unsealed).
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r.Get("/v1/pki/{mount}/ca", s.requireUnseal(s.handlePKIRoot))
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r.Get("/v1/pki/{mount}/ca/chain", s.requireUnseal(s.handlePKIChain))
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r.Get("/v1/pki/{mount}/issuer/{name}", s.requireUnseal(s.handlePKIIssuer))
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r.Get("/v1/pki/{mount}/issuer/{name}/crl", s.requireUnseal(s.handlePKICRL))
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r.HandleFunc("/v1/policy/rules", s.requireAuth(s.handlePolicyRules))
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r.HandleFunc("/v1/policy/rule", s.requireAuth(s.handlePolicyRule))
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// Transit engine routes.
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r.Post("/v1/transit/{mount}/keys", s.requireAdmin(s.handleTransitCreateKey))
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r.Get("/v1/transit/{mount}/keys", s.requireAuth(s.handleTransitListKeys))
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r.Get("/v1/transit/{mount}/keys/{name}", s.requireAuth(s.handleTransitGetKey))
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r.Delete("/v1/transit/{mount}/keys/{name}", s.requireAdmin(s.handleTransitDeleteKey))
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r.Post("/v1/transit/{mount}/keys/{name}/rotate", s.requireAdmin(s.handleTransitRotateKey))
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r.Post("/v1/transit/{mount}/keys/{name}/config", s.requireAdmin(s.handleTransitUpdateKeyConfig))
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r.Post("/v1/transit/{mount}/keys/{name}/trim", s.requireAdmin(s.handleTransitTrimKey))
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r.Post("/v1/transit/{mount}/encrypt/{key}", s.requireAuth(s.handleTransitEncrypt))
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r.Post("/v1/transit/{mount}/decrypt/{key}", s.requireAuth(s.handleTransitDecrypt))
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r.Post("/v1/transit/{mount}/rewrap/{key}", s.requireAuth(s.handleTransitRewrap))
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r.Post("/v1/transit/{mount}/batch/encrypt/{key}", s.requireAuth(s.handleTransitBatchEncrypt))
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r.Post("/v1/transit/{mount}/batch/decrypt/{key}", s.requireAuth(s.handleTransitBatchDecrypt))
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r.Post("/v1/transit/{mount}/batch/rewrap/{key}", s.requireAuth(s.handleTransitBatchRewrap))
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r.Post("/v1/transit/{mount}/sign/{key}", s.requireAuth(s.handleTransitSign))
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r.Post("/v1/transit/{mount}/verify/{key}", s.requireAuth(s.handleTransitVerify))
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r.Post("/v1/transit/{mount}/hmac/{key}", s.requireAuth(s.handleTransitHmac))
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r.Get("/v1/transit/{mount}/keys/{name}/public-key", s.requireAuth(s.handleTransitGetPublicKey))
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s.registerACMERoutes(r)
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}
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// --- API Handlers ---
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func (s *Server) handleStatus(w http.ResponseWriter, r *http.Request) {
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"state": s.seal.State().String(),
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})
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}
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func (s *Server) handleInit(w http.ResponseWriter, r *http.Request) {
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var req struct {
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Password string `json:"password"`
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}
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if err := readJSON(r, &req); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
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if req.Password == "" {
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http.Error(w, `{"error":"password is required"}`, http.StatusBadRequest)
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return
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}
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params := crypto.Argon2Params{
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Time: s.cfg.Seal.Argon2Time,
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Memory: s.cfg.Seal.Argon2Memory,
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Threads: s.cfg.Seal.Argon2Threads,
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}
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if err := s.seal.Initialize(r.Context(), []byte(req.Password), params); err != nil {
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if errors.Is(err, seal.ErrAlreadyInitialized) {
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http.Error(w, `{"error":"already initialized"}`, http.StatusConflict)
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return
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}
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s.logger.Error("init failed", "error", err)
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http.Error(w, `{"error":"initialization failed"}`, http.StatusInternalServerError)
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return
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"state": s.seal.State().String(),
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})
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}
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func (s *Server) handleUnseal(w http.ResponseWriter, r *http.Request) {
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var req struct {
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Password string `json:"password"`
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}
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if err := readJSON(r, &req); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
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if err := s.seal.Unseal([]byte(req.Password)); err != nil {
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if errors.Is(err, seal.ErrNotInitialized) {
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s.logger.Warn("unseal attempt on uninitialized service", "remote_addr", r.RemoteAddr)
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http.Error(w, `{"error":"not initialized"}`, http.StatusPreconditionFailed)
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} else if errors.Is(err, seal.ErrInvalidPassword) {
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s.logger.Warn("unseal attempt with invalid password", "remote_addr", r.RemoteAddr)
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http.Error(w, `{"error":"invalid password"}`, http.StatusUnauthorized)
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} else if errors.Is(err, seal.ErrRateLimited) {
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s.logger.Warn("unseal attempt rate limited", "remote_addr", r.RemoteAddr)
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http.Error(w, `{"error":"too many attempts, try again later"}`, http.StatusTooManyRequests)
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} else if errors.Is(err, seal.ErrNotSealed) {
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s.logger.Warn("unseal attempt on already-unsealed service", "remote_addr", r.RemoteAddr)
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http.Error(w, `{"error":"already unsealed"}`, http.StatusConflict)
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} else {
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s.logger.Error("unseal failed", "remote_addr", r.RemoteAddr, "error", err)
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http.Error(w, `{"error":"unseal failed"}`, http.StatusInternalServerError)
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}
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return
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}
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if err := s.engines.UnsealAll(r.Context()); err != nil {
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s.logger.Error("engine unseal failed", "error", err)
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http.Error(w, `{"error":"engine unseal failed"}`, http.StatusInternalServerError)
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return
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}
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s.logger.Info("service unsealed", "remote_addr", r.RemoteAddr)
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"state": s.seal.State().String(),
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})
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}
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func (s *Server) handleSeal(w http.ResponseWriter, r *http.Request) {
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if err := s.engines.SealAll(); err != nil {
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s.logger.Error("seal engines failed", "error", err)
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}
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if err := s.seal.Seal(); err != nil {
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s.logger.Error("seal failed", "error", err)
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http.Error(w, `{"error":"seal failed"}`, http.StatusInternalServerError)
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return
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}
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s.auth.ClearCache()
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"state": s.seal.State().String(),
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})
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}
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func (s *Server) handleLogin(w http.ResponseWriter, r *http.Request) {
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if s.seal.State() != seal.StateUnsealed {
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http.Error(w, `{"error":"sealed"}`, http.StatusServiceUnavailable)
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return
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}
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var req struct {
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Username string `json:"username"`
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Password string `json:"password"`
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TOTPCode string `json:"totp_code"`
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}
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if err := readJSON(r, &req); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
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token, expiresAt, err := s.auth.Login(req.Username, req.Password, req.TOTPCode)
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if err != nil {
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http.Error(w, `{"error":"invalid credentials"}`, http.StatusUnauthorized)
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return
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"token": token,
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"expires_at": expiresAt,
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})
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}
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func (s *Server) handleLogout(w http.ResponseWriter, r *http.Request) {
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token := extractToken(r)
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client, err := mcias.New(s.cfg.MCIAS.ServerURL, mcias.Options{
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CACertPath: s.cfg.MCIAS.CACert,
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Token: token,
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})
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if err == nil {
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_ = s.auth.Logout(client)
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}
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// Clear cookie.
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http.SetCookie(w, &http.Cookie{
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Name: "metacrypt_token",
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Value: "",
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Path: "/",
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MaxAge: -1,
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HttpOnly: true,
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Secure: true,
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SameSite: http.SameSiteStrictMode,
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})
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writeJSON(w, http.StatusOK, map[string]interface{}{"ok": true})
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}
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func (s *Server) handleTokenInfo(w http.ResponseWriter, r *http.Request) {
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info := TokenInfoFromContext(r.Context())
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"username": info.Username,
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"roles": info.Roles,
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"is_admin": info.IsAdmin,
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})
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}
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func (s *Server) handleEngineMounts(w http.ResponseWriter, r *http.Request) {
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mounts := s.engines.ListMounts()
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writeJSON(w, http.StatusOK, mounts)
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}
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func (s *Server) handleEngineMount(w http.ResponseWriter, r *http.Request) {
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var req struct {
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Config map[string]interface{} `json:"config"`
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Name string `json:"name"`
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Type string `json:"type"`
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}
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if err := readJSON(r, &req); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
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if req.Name == "" || req.Type == "" {
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http.Error(w, `{"error":"name and type are required"}`, http.StatusBadRequest)
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return
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}
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if err := s.engines.Mount(r.Context(), req.Name, engine.EngineType(req.Type), req.Config); err != nil {
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s.logger.Error("mount engine", "name", req.Name, "type", req.Type, "error", err)
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http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusBadRequest)
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return
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{"ok": true})
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}
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func (s *Server) handleEngineUnmount(w http.ResponseWriter, r *http.Request) {
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var req struct {
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Name string `json:"name"`
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}
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if err := readJSON(r, &req); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
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if err := s.engines.Unmount(r.Context(), req.Name); err != nil {
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http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusNotFound)
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return
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{"ok": true})
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}
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func (s *Server) handleEngineRequest(w http.ResponseWriter, r *http.Request) {
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var req struct {
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Data map[string]interface{} `json:"data"`
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Mount string `json:"mount"`
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Operation string `json:"operation"`
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Path string `json:"path"`
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}
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if err := readJSON(r, &req); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
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if req.Mount == "" || req.Operation == "" {
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http.Error(w, `{"error":"mount and operation are required"}`, http.StatusBadRequest)
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return
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}
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info := TokenInfoFromContext(r.Context())
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// Evaluate policy before dispatching to the engine.
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policyReq := &policy.Request{
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Username: info.Username,
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Roles: info.Roles,
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Resource: "engine/" + req.Mount + "/" + req.Operation,
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Action: operationAction(req.Operation),
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}
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effect, err := s.policy.Evaluate(r.Context(), policyReq)
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if err != nil {
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s.logger.Error("policy evaluation failed", "error", err)
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http.Error(w, `{"error":"internal error"}`, http.StatusInternalServerError)
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return
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}
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if effect != policy.EffectAllow {
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http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
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return
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}
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policyChecker := func(resource, action string) (string, bool) {
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pReq := &policy.Request{
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Username: info.Username,
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Roles: info.Roles,
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Resource: resource,
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Action: action,
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}
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eff, matched, pErr := s.policy.Match(r.Context(), pReq)
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if pErr != nil {
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return string(policy.EffectDeny), false
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}
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return string(eff), matched
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}
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engReq := &engine.Request{
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Operation: req.Operation,
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Path: req.Path,
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Data: req.Data,
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CallerInfo: &engine.CallerInfo{
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Username: info.Username,
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Roles: info.Roles,
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IsAdmin: info.IsAdmin,
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},
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CheckPolicy: policyChecker,
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}
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resp, err := s.engines.HandleRequest(r.Context(), req.Mount, engReq)
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if err != nil {
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status := http.StatusInternalServerError
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switch {
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case errors.Is(err, engine.ErrMountNotFound):
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status = http.StatusNotFound
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case errors.Is(err, ca.ErrIdentifierInUse):
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status = http.StatusConflict
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case strings.Contains(err.Error(), "forbidden"):
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status = http.StatusForbidden
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case strings.Contains(err.Error(), "authentication required"):
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status = http.StatusUnauthorized
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case strings.Contains(err.Error(), "not found"):
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status = http.StatusNotFound
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}
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http.Error(w, `{"error":"`+err.Error()+`"}`, status)
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return
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}
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writeJSON(w, http.StatusOK, resp.Data)
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}
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func (s *Server) handlePolicyRules(w http.ResponseWriter, r *http.Request) {
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info := TokenInfoFromContext(r.Context())
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switch r.Method {
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case http.MethodGet:
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if !info.IsAdmin {
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http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
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return
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}
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rules, err := s.policy.ListRules(r.Context())
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if err != nil {
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s.logger.Error("list policies", "error", err)
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http.Error(w, `{"error":"internal error"}`, http.StatusInternalServerError)
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return
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}
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if rules == nil {
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rules = []policy.Rule{}
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}
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writeJSON(w, http.StatusOK, rules)
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case http.MethodPost:
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if !info.IsAdmin {
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http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
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return
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}
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var rule policy.Rule
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if err := readJSON(r, &rule); err != nil {
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http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
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return
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}
|
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if rule.ID == "" {
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http.Error(w, `{"error":"id is required"}`, http.StatusBadRequest)
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return
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}
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if err := s.policy.CreateRule(r.Context(), &rule); err != nil {
|
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s.logger.Error("create policy", "error", err)
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http.Error(w, `{"error":"internal error"}`, http.StatusInternalServerError)
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return
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}
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writeJSON(w, http.StatusCreated, rule)
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default:
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http.Error(w, `{"error":"method not allowed"}`, http.StatusMethodNotAllowed)
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}
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}
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|
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func (s *Server) handlePolicyRule(w http.ResponseWriter, r *http.Request) {
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info := TokenInfoFromContext(r.Context())
|
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if !info.IsAdmin {
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http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
|
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return
|
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}
|
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|
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id := r.URL.Query().Get("id")
|
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if id == "" {
|
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http.Error(w, `{"error":"id parameter required"}`, http.StatusBadRequest)
|
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return
|
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}
|
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|
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switch r.Method {
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case http.MethodGet:
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rule, err := s.policy.GetRule(r.Context(), id)
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if err != nil {
|
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http.Error(w, `{"error":"not found"}`, http.StatusNotFound)
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return
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}
|
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writeJSON(w, http.StatusOK, rule)
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case http.MethodDelete:
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if err := s.policy.DeleteRule(r.Context(), id); err != nil {
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http.Error(w, `{"error":"not found"}`, http.StatusNotFound)
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return
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}
|
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writeJSON(w, http.StatusOK, map[string]interface{}{"ok": true})
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default:
|
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http.Error(w, `{"error":"method not allowed"}`, http.StatusMethodNotAllowed)
|
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}
|
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}
|
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|
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// --- CA Certificate Handlers ---
|
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|
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func (s *Server) handleGetCert(w http.ResponseWriter, r *http.Request) {
|
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mountName := chi.URLParam(r, "mount")
|
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serial := chi.URLParam(r, "serial")
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|
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info := TokenInfoFromContext(r.Context())
|
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resp, err := s.engines.HandleRequest(r.Context(), mountName, &engine.Request{
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Operation: "get-cert",
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Data: map[string]interface{}{"serial": serial},
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CallerInfo: &engine.CallerInfo{
|
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Username: info.Username,
|
|
Roles: info.Roles,
|
|
IsAdmin: info.IsAdmin,
|
|
},
|
|
})
|
|
if err != nil {
|
|
if errors.Is(err, ca.ErrCertNotFound) {
|
|
http.Error(w, `{"error":"certificate not found"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusInternalServerError)
|
|
return
|
|
}
|
|
writeJSON(w, http.StatusOK, resp.Data)
|
|
}
|
|
|
|
func (s *Server) handleRevokeCert(w http.ResponseWriter, r *http.Request) {
|
|
mountName := chi.URLParam(r, "mount")
|
|
serial := chi.URLParam(r, "serial")
|
|
|
|
info := TokenInfoFromContext(r.Context())
|
|
resp, err := s.engines.HandleRequest(r.Context(), mountName, &engine.Request{
|
|
Operation: "revoke-cert",
|
|
Data: map[string]interface{}{"serial": serial},
|
|
CallerInfo: &engine.CallerInfo{
|
|
Username: info.Username,
|
|
Roles: info.Roles,
|
|
IsAdmin: info.IsAdmin,
|
|
},
|
|
})
|
|
if err != nil {
|
|
if errors.Is(err, ca.ErrCertNotFound) {
|
|
http.Error(w, `{"error":"certificate not found"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
if errors.Is(err, ca.ErrForbidden) {
|
|
http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
|
|
return
|
|
}
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusInternalServerError)
|
|
return
|
|
}
|
|
writeJSON(w, http.StatusOK, resp.Data)
|
|
}
|
|
|
|
func (s *Server) handleDeleteCert(w http.ResponseWriter, r *http.Request) {
|
|
mountName := chi.URLParam(r, "mount")
|
|
serial := chi.URLParam(r, "serial")
|
|
|
|
info := TokenInfoFromContext(r.Context())
|
|
_, err := s.engines.HandleRequest(r.Context(), mountName, &engine.Request{
|
|
Operation: "delete-cert",
|
|
Data: map[string]interface{}{"serial": serial},
|
|
CallerInfo: &engine.CallerInfo{
|
|
Username: info.Username,
|
|
Roles: info.Roles,
|
|
IsAdmin: info.IsAdmin,
|
|
},
|
|
})
|
|
if err != nil {
|
|
if errors.Is(err, ca.ErrCertNotFound) {
|
|
http.Error(w, `{"error":"certificate not found"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
if errors.Is(err, ca.ErrForbidden) {
|
|
http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
|
|
return
|
|
}
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusInternalServerError)
|
|
return
|
|
}
|
|
writeJSON(w, http.StatusNoContent, nil)
|
|
}
|
|
|
|
// --- Public PKI Handlers ---
|
|
|
|
func (s *Server) handlePKIRoot(w http.ResponseWriter, r *http.Request) {
|
|
mountName := chi.URLParam(r, "mount")
|
|
caEng, err := s.getCAEngine(mountName)
|
|
if err != nil {
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
|
|
certPEM, err := caEng.GetRootCertPEM()
|
|
if err != nil {
|
|
http.Error(w, `{"error":"sealed"}`, http.StatusServiceUnavailable)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "application/x-pem-file")
|
|
_, _ = w.Write(certPEM) //nolint:gosec
|
|
}
|
|
|
|
func (s *Server) handlePKIChain(w http.ResponseWriter, r *http.Request) {
|
|
mountName := chi.URLParam(r, "mount")
|
|
issuerName := r.URL.Query().Get("issuer")
|
|
if issuerName == "" {
|
|
http.Error(w, `{"error":"issuer query parameter required"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
|
|
caEng, err := s.getCAEngine(mountName)
|
|
if err != nil {
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
|
|
chainPEM, err := caEng.GetChainPEM(issuerName)
|
|
if err != nil {
|
|
if errors.Is(err, ca.ErrIssuerNotFound) {
|
|
http.Error(w, `{"error":"issuer not found"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
http.Error(w, `{"error":"sealed"}`, http.StatusServiceUnavailable)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "application/x-pem-file")
|
|
_, _ = w.Write(chainPEM) //nolint:gosec
|
|
}
|
|
|
|
func (s *Server) handlePKIIssuer(w http.ResponseWriter, r *http.Request) {
|
|
mountName := chi.URLParam(r, "mount")
|
|
issuerName := chi.URLParam(r, "name")
|
|
|
|
caEng, err := s.getCAEngine(mountName)
|
|
if err != nil {
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
|
|
certPEM, err := caEng.GetIssuerCertPEM(issuerName)
|
|
if err != nil {
|
|
if errors.Is(err, ca.ErrIssuerNotFound) {
|
|
http.Error(w, `{"error":"issuer not found"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
http.Error(w, `{"error":"sealed"}`, http.StatusServiceUnavailable)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "application/x-pem-file")
|
|
_, _ = w.Write(certPEM) //nolint:gosec
|
|
}
|
|
|
|
func (s *Server) handlePKICRL(w http.ResponseWriter, r *http.Request) {
|
|
mountName := chi.URLParam(r, "mount")
|
|
issuerName := chi.URLParam(r, "name")
|
|
|
|
caEng, err := s.getCAEngine(mountName)
|
|
if err != nil {
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
|
|
crlDER, err := caEng.GetCRLDER(r.Context(), issuerName)
|
|
if err != nil {
|
|
if errors.Is(err, ca.ErrIssuerNotFound) {
|
|
http.Error(w, `{"error":"issuer not found"}`, http.StatusNotFound)
|
|
return
|
|
}
|
|
http.Error(w, `{"error":"sealed"}`, http.StatusServiceUnavailable)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "application/pkix-crl")
|
|
_, _ = w.Write(crlDER) //nolint:gosec
|
|
}
|
|
|
|
func (s *Server) getCAEngine(mountName string) (*ca.CAEngine, error) {
|
|
mount, err := s.engines.GetMount(mountName)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if mount.Type != engine.EngineTypeCA {
|
|
return nil, errors.New("mount is not a CA engine")
|
|
}
|
|
caEng, ok := mount.Engine.(*ca.CAEngine)
|
|
if !ok {
|
|
return nil, errors.New("mount is not a CA engine")
|
|
}
|
|
return caEng, nil
|
|
}
|
|
|
|
// --- Transit Engine Handlers ---
|
|
|
|
func (s *Server) transitRequest(w http.ResponseWriter, r *http.Request, mount, operation string, data map[string]interface{}) {
|
|
info := TokenInfoFromContext(r.Context())
|
|
|
|
policyChecker := func(resource, action string) (string, bool) {
|
|
pReq := &policy.Request{
|
|
Username: info.Username,
|
|
Roles: info.Roles,
|
|
Resource: resource,
|
|
Action: action,
|
|
}
|
|
eff, matched, pErr := s.policy.Match(r.Context(), pReq)
|
|
if pErr != nil {
|
|
return string(policy.EffectDeny), false
|
|
}
|
|
return string(eff), matched
|
|
}
|
|
|
|
resp, err := s.engines.HandleRequest(r.Context(), mount, &engine.Request{
|
|
Operation: operation,
|
|
CallerInfo: &engine.CallerInfo{Username: info.Username, Roles: info.Roles, IsAdmin: info.IsAdmin},
|
|
CheckPolicy: policyChecker,
|
|
Data: data,
|
|
})
|
|
if err != nil {
|
|
status := http.StatusInternalServerError
|
|
switch {
|
|
case errors.Is(err, engine.ErrMountNotFound):
|
|
status = http.StatusNotFound
|
|
case strings.Contains(err.Error(), "forbidden"):
|
|
status = http.StatusForbidden
|
|
case strings.Contains(err.Error(), "authentication required"):
|
|
status = http.StatusUnauthorized
|
|
case strings.Contains(err.Error(), "not found"):
|
|
status = http.StatusNotFound
|
|
case strings.Contains(err.Error(), "not allowed"):
|
|
status = http.StatusForbidden
|
|
case strings.Contains(err.Error(), "unsupported"):
|
|
status = http.StatusBadRequest
|
|
case strings.Contains(err.Error(), "invalid"):
|
|
status = http.StatusBadRequest
|
|
}
|
|
http.Error(w, `{"error":"`+err.Error()+`"}`, status)
|
|
return
|
|
}
|
|
writeJSON(w, http.StatusOK, resp.Data)
|
|
}
|
|
|
|
func (s *Server) handleTransitCreateKey(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
var req struct {
|
|
Name string `json:"name"`
|
|
Type string `json:"type"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
s.transitRequest(w, r, mount, "create-key", map[string]interface{}{"name": req.Name, "type": req.Type})
|
|
}
|
|
|
|
func (s *Server) handleTransitDeleteKey(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
name := chi.URLParam(r, "name")
|
|
s.transitRequest(w, r, mount, "delete-key", map[string]interface{}{"name": name})
|
|
}
|
|
|
|
func (s *Server) handleTransitGetKey(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
name := chi.URLParam(r, "name")
|
|
s.transitRequest(w, r, mount, "get-key", map[string]interface{}{"name": name})
|
|
}
|
|
|
|
func (s *Server) handleTransitListKeys(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
s.transitRequest(w, r, mount, "list-keys", nil)
|
|
}
|
|
|
|
func (s *Server) handleTransitRotateKey(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
name := chi.URLParam(r, "name")
|
|
s.transitRequest(w, r, mount, "rotate-key", map[string]interface{}{"name": name})
|
|
}
|
|
|
|
func (s *Server) handleTransitUpdateKeyConfig(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
name := chi.URLParam(r, "name")
|
|
var req struct {
|
|
MinDecryptionVersion *float64 `json:"min_decryption_version"`
|
|
AllowDeletion *bool `json:"allow_deletion"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
data := map[string]interface{}{"name": name}
|
|
if req.MinDecryptionVersion != nil {
|
|
data["min_decryption_version"] = *req.MinDecryptionVersion
|
|
}
|
|
if req.AllowDeletion != nil {
|
|
data["allow_deletion"] = *req.AllowDeletion
|
|
}
|
|
s.transitRequest(w, r, mount, "update-key-config", data)
|
|
}
|
|
|
|
func (s *Server) handleTransitTrimKey(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
name := chi.URLParam(r, "name")
|
|
s.transitRequest(w, r, mount, "trim-key", map[string]interface{}{"name": name})
|
|
}
|
|
|
|
func (s *Server) handleTransitEncrypt(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Plaintext string `json:"plaintext"`
|
|
Context string `json:"context"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
data := map[string]interface{}{"key": key, "plaintext": req.Plaintext}
|
|
if req.Context != "" {
|
|
data["context"] = req.Context
|
|
}
|
|
s.transitRequest(w, r, mount, "encrypt", data)
|
|
}
|
|
|
|
func (s *Server) handleTransitDecrypt(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Ciphertext string `json:"ciphertext"`
|
|
Context string `json:"context"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
data := map[string]interface{}{"key": key, "ciphertext": req.Ciphertext}
|
|
if req.Context != "" {
|
|
data["context"] = req.Context
|
|
}
|
|
s.transitRequest(w, r, mount, "decrypt", data)
|
|
}
|
|
|
|
func (s *Server) handleTransitRewrap(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Ciphertext string `json:"ciphertext"`
|
|
Context string `json:"context"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
data := map[string]interface{}{"key": key, "ciphertext": req.Ciphertext}
|
|
if req.Context != "" {
|
|
data["context"] = req.Context
|
|
}
|
|
s.transitRequest(w, r, mount, "rewrap", data)
|
|
}
|
|
|
|
func (s *Server) handleTransitBatchEncrypt(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Items []interface{} `json:"items"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
s.transitRequest(w, r, mount, "batch-encrypt", map[string]interface{}{"key": key, "items": req.Items})
|
|
}
|
|
|
|
func (s *Server) handleTransitBatchDecrypt(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Items []interface{} `json:"items"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
s.transitRequest(w, r, mount, "batch-decrypt", map[string]interface{}{"key": key, "items": req.Items})
|
|
}
|
|
|
|
func (s *Server) handleTransitBatchRewrap(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Items []interface{} `json:"items"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
s.transitRequest(w, r, mount, "batch-rewrap", map[string]interface{}{"key": key, "items": req.Items})
|
|
}
|
|
|
|
func (s *Server) handleTransitSign(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Input string `json:"input"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
s.transitRequest(w, r, mount, "sign", map[string]interface{}{"key": key, "input": req.Input})
|
|
}
|
|
|
|
func (s *Server) handleTransitVerify(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Input string `json:"input"`
|
|
Signature string `json:"signature"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
s.transitRequest(w, r, mount, "verify", map[string]interface{}{"key": key, "input": req.Input, "signature": req.Signature})
|
|
}
|
|
|
|
func (s *Server) handleTransitHmac(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
key := chi.URLParam(r, "key")
|
|
var req struct {
|
|
Input string `json:"input"`
|
|
HMAC string `json:"hmac"`
|
|
}
|
|
if err := readJSON(r, &req); err != nil {
|
|
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
|
|
return
|
|
}
|
|
data := map[string]interface{}{"key": key, "input": req.Input}
|
|
if req.HMAC != "" {
|
|
data["hmac"] = req.HMAC
|
|
}
|
|
s.transitRequest(w, r, mount, "hmac", data)
|
|
}
|
|
|
|
func (s *Server) handleTransitGetPublicKey(w http.ResponseWriter, r *http.Request) {
|
|
mount := chi.URLParam(r, "mount")
|
|
name := chi.URLParam(r, "name")
|
|
s.transitRequest(w, r, mount, "get-public-key", map[string]interface{}{"name": name})
|
|
}
|
|
|
|
// operationAction maps an engine operation name to a policy action ("read" or "write").
|
|
func operationAction(op string) string {
|
|
switch op {
|
|
case "list-issuers", "list-certs", "get-cert", "get-root", "get-chain", "get-issuer",
|
|
"list-keys", "get-key", "get-public-key":
|
|
return "read"
|
|
case "decrypt", "rewrap", "batch-decrypt", "batch-rewrap":
|
|
return "decrypt"
|
|
default:
|
|
return "write"
|
|
}
|
|
}
|
|
|
|
func writeJSON(w http.ResponseWriter, status int, v interface{}) {
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.WriteHeader(status)
|
|
_ = json.NewEncoder(w).Encode(v)
|
|
}
|
|
|
|
func readJSON(r *http.Request, v interface{}) error {
|
|
defer func() { _ = r.Body.Close() }()
|
|
body, err := io.ReadAll(io.LimitReader(r.Body, 1<<20)) // 1MB limit
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return json.Unmarshal(body, v)
|
|
}
|