internal/database: start refactoring Storage into smaller interfaces

internal/database/cert.go

@@ -1,5 +1,23 @@
 package database
 
+import (
+	"io"
+
+	"github.com/asdine/storm"
+	"golang.org/x/crypto/acme/autocert"
+	"golang.org/x/net/context"
+)
+
+// Certs is the set of API calls needed to manage certificate resources.
+//
+// Database backends should implement this interface, they will not need
+// to implement certificate decryption, as that will be handled in the layer
+// above this DAO.
+type Certs interface {
+	io.Closer
+	autocert.Cache
+}
+
 // CryptoLevel indicates what form of cryptography the certificate is stored
 // with.
 type CryptoLevel int
@@ -20,3 +38,35 @@ type CachedCert struct {
 	// PEM-encoded bytes with the above crypto level as a filter.
 	Body []byte
 }
+
+type storageManager struct {
+	Storage
+}
+
+func (s *storageManager) Get(ctx context.Context, key string) ([]byte, error) {
+	data, err := s.GetCert(ctx, key)
+	if err != nil {
+		if err == storm.ErrNotFound {
+			return nil, autocert.ErrCacheMiss
+		} else {
+			return nil, err
+		}
+	}
+
+	return data, nil
+}
+
+func (s *storageManager) Put(ctx context.Context, key string, data []byte) error {
+	return s.PutCert(ctx, key, data)
+}
+
+func (s *storageManager) Delete(ctx context.Context, key string) error {
+	return s.DeleteCert(ctx, key)
+}
+
+// Cache creates an autocert.Cache from a Storage instance.
+func Cache(s Storage) autocert.Cache {
+	return autocert.Cache(&storageManager{
+		Storage: s,
+	})
+}

internal/database/route.go

@@ -1,10 +1,26 @@
 package database
 
 import (
+	"io"
+
 	proto "git.xeserv.us/xena/route/proto"
 	"github.com/Xe/ln"
+	"golang.org/x/net/context"
 )
 
+// Routes is the set of API calls needed to manage Route resources.
+//
+// Database backends should implement this interface.
+type Routes interface {
+	io.Closer
+
+	Get(ctx context.Context, id string) (Route, error)
+	GetHost(ctx context.Context, host string) (Route, error)
+	GetAll(ctx context.Context, user string) ([]Route, error)
+	Put(ctx context.Context, r Route) (Route, error)
+	Delete(ctx context.Context, r Route) (Route, error)
+}
+
 // Route is a single HTTP route.
 type Route struct {
 	ID       string `storm:"id"`
@@ -21,7 +37,7 @@ func (r Route) F() ln.F {
 	}
 }
 
-// AsProto converts this into the protobuf.
+// AsProto converts this into a protobuf Route.
 func (r Route) AsProto() *proto.Route {
 	return &proto.Route{
 		Id:      r.ID,

internal/database/storage.go

@@ -1,8 +1,6 @@
 package database
 
 import (
-	"github.com/asdine/storm"
-	"golang.org/x/crypto/acme/autocert"
 	"golang.org/x/net/context"
 )
 
@@ -30,35 +28,3 @@ type Storage interface {
 
 	Close() error
 }
-
-type storageManager struct {
-	Storage
-}
-
-func (s *storageManager) Get(ctx context.Context, key string) ([]byte, error) {
-	data, err := s.GetCert(ctx, key)
-	if err != nil {
-		if err == storm.ErrNotFound {
-			return nil, autocert.ErrCacheMiss
-		} else {
-			return nil, err
-		}
-	}
-
-	return data, nil
-}
-
-func (s *storageManager) Put(ctx context.Context, key string, data []byte) error {
-	return s.PutCert(ctx, key, data)
-}
-
-func (s *storageManager) Delete(ctx context.Context, key string) error {
-	return s.DeleteCert(ctx, key)
-}
-
-// Cache creates an autocert.Cache from a Storage instance.
-func Cache(s Storage) autocert.Cache {
-	return autocert.Cache(&storageManager{
-		Storage: s,
-	})
-}

internal/database/token.go

@@ -1,11 +1,28 @@
 package database
 
-import "time"
 import (
+	"io"
+	"time"
+
 	proto "git.xeserv.us/xena/route/proto"
 	"github.com/Xe/ln"
+	"golang.org/x/net/context"
 )
 
+// Tokens is the set of API calls needed to manage Token resources.
+//
+// Database backends should implement this interface.
+type Tokens interface {
+	io.Closer
+
+	Get(ctx context.Context, id string) (Token, error)
+	GetBody(ctx context.Context, body string) (Token, error)
+	GetAll(ctx context.Context, user string) ([]Token, error)
+	Put(ctx context.Context, t Token) (Token, error)
+	Delete(ctx context.Context, id string) (Token, error)
+	DeleteExpired(ctx context.Context) error
+}
+
 // Token is a single authorization token.
 type Token struct {
 	ID     string `storm:"id"`
@@ -14,19 +31,28 @@ type Token struct {
 	Scopes []string
 
 	CreatedAt time.Time `json:"created_at"`
+	ExpiresAt time.Time `json:"expires_at"`
 	Active    bool      `json:"active"`
 }
 
 // F https://godoc.org/github.com/Xe/ln#F
 func (t Token) F() ln.F {
-	return ln.F{
-		"token-id":     t.ID,
-		"token-owner":  t.Owner,
-		"token-active": t.Active,
+	f := ln.F{
+		"token-id":         t.ID,
+		"token-owner":      t.Owner,
+		"token-active":     t.Active,
+		"token-scopes":     t.Scopes,
+		"token-created-at": t.CreatedAt.String(),
 	}
+
+	if !t.ExpiresAt.IsZero() {
+		f["token-expires-at"] = t.ExpiresAt.String()
+	}
+
+	return f
 }
 
-// AsProto ...
+// AsProto converts this into a protobuf Token.
 func (t Token) AsProto() *proto.Token {
 	return &proto.Token{
 		Id:     t.ID,