Reog and implement sqlite

go.mod

@@ -5,6 +5,7 @@ go 1.23.4
 require (
 	github.com/common-fate/httpsig v0.2.1
 	github.com/google/uuid v1.6.0
+	github.com/mattn/go-sqlite3 v1.14.24
 	github.com/opencontainers/go-digest v1.0.0
 	golang.org/x/crypto v0.33.0
 )

go.sum

@@ -6,6 +6,8 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/mattn/go-sqlite3 v1.14.24 h1:tpSp2G2KyMnnQu99ngJ47EIkWVmliIizyZBfPrBWDRM=
+github.com/mattn/go-sqlite3 v1.14.24/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=

keydirectory/in_memory_directory.go

@@ -0,0 +1,45 @@
+package keydirectory
+
+import (
+	"context"
+	"crypto"
+	"errors"
+
+	"github.com/common-fate/httpsig/verifier"
+)
+
+type inMemoryDirectory struct {
+	records map[string]keyEntry
+}
+
+func CreateMemoryDirectory() inMemoryDirectory {
+	return inMemoryDirectory{
+		records: map[string]keyEntry{},
+	}
+}
+
+func (dir inMemoryDirectory) GetKey(ctx context.Context, keyId string, _ string) (verifier.Algorithm, error) {
+	entry, ok := dir.records[keyId]
+
+	if !ok {
+		return nil, errors.New("key not found in directory")
+	}
+
+	return entry.toAlg()
+}
+
+func (dir inMemoryDirectory) RegisterKey(key crypto.PublicKey, alg string, userId string) (string, error) {
+	keyId, err := generateKeyId()
+
+	if err != nil {
+		return "", err
+	}
+
+	dir.records[keyId] = keyEntry{
+		Alg:       alg,
+		PublicKey: key,
+		UserId:    userId,
+	}
+
+	return keyId, nil
+}

keydirectory/key_ids.go

@@ -0,0 +1,15 @@
+package keydirectory
+
+import "github.com/google/uuid"
+
+func generateKeyId() (string, error) {
+	uuid, err := uuid.NewRandom()
+
+	if err != nil {
+		return "", err
+	}
+
+	keyId := uuid.String()
+
+	return keyId, nil
+}

keydirectory/keyentry.go

@@ -1,9 +1,33 @@
 package keydirectory
 
-import "crypto"
+import (
+	"crypto"
+	"crypto/ed25519"
+	"fmt"
 
-type KeyEntry struct {
+	"github.com/common-fate/httpsig/alg_ed25519"
+	"github.com/common-fate/httpsig/verifier"
+)
+
+type keyEntry struct {
 	Alg       string
 	PublicKey crypto.PublicKey
 	UserId    string
 }
+
+func (k keyEntry) toAlg() (verifier.Algorithm, error) {
+	var alg verifier.Algorithm
+	var err error
+
+	switch k.Alg {
+	case "ed25519":
+		alg = alg_ed25519.Ed25519{
+			PublicKey: k.PublicKey.(ed25519.PublicKey),
+			Attrs:     k.UserId,
+		}
+	default:
+		err = fmt.Errorf("unknown algoritm: %s", k.Alg)
+	}
+
+	return alg, err
+}

keydirectory/sqlite.go

@@ -0,0 +1,110 @@
+package keydirectory
+
+import (
+	"context"
+	"crypto"
+	"crypto/ed25519"
+	"database/sql"
+	"fmt"
+
+	"github.com/common-fate/httpsig/verifier"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+type dbWrapper struct {
+	db *sql.DB
+}
+
+func InitSqlite(dbPath string) (*dbWrapper, error) {
+	db, err := sql.Open("sqlite3", dbPath)
+
+	if err != nil {
+		return &dbWrapper{}, err
+	}
+
+	createStmt := `
+	create table
+	if not exists
+	keys(keyId text not null primary key, userId text, alg text, publicKey blob)
+	`
+
+	_, err = db.Exec(createStmt)
+
+	if err != nil {
+		return &dbWrapper{}, err
+	}
+
+	return &dbWrapper{db}, nil
+}
+
+func (dir *dbWrapper) GetKey(ctx context.Context, keyId string, _ string) (verifier.Algorithm, error) {
+	db := dir.db
+
+	query := "select userId, alg, publicKey from keys where keyId = ?"
+
+	stmt, err := db.Prepare(query)
+
+	if err != nil {
+		return nil, err
+	}
+
+	defer stmt.Close()
+
+	var userId string
+	var alg string
+	var keyBytes []byte
+
+	row := stmt.QueryRow(keyId)
+
+	err = row.Scan(&userId, &alg, &keyBytes)
+
+	if err != nil {
+		return nil, err
+	}
+
+	var publicKey crypto.PublicKey
+
+	switch alg {
+	case "ed25519":
+		publicKey = ed25519.PublicKey(keyBytes)
+	default:
+		return nil, fmt.Errorf("unknown algorithm: %s", alg)
+	}
+
+	keyEntry := keyEntry{
+		Alg:       alg,
+		UserId:    userId,
+		PublicKey: publicKey,
+	}
+
+	return keyEntry.toAlg()
+}
+
+func (dir *dbWrapper) RegisterKey(key crypto.PublicKey, alg string, userId string) (string, error) {
+	db := dir.db
+
+	keyId, err := generateKeyId()
+
+	if err != nil {
+		return "", err
+	}
+
+	stmt := "insert into keys(keyId, userId, alg, publicKey) values (?, ?, ?, ?)"
+
+	var keyBytes []byte
+
+	switch alg {
+	case "ed25519":
+		keyBytes = []byte(key.(ed25519.PublicKey))
+	default:
+		return "", fmt.Errorf("unknown algorithm: %s", alg)
+	}
+
+	_, err = db.Exec(stmt, keyId, userId, alg, keyBytes)
+
+	if err != nil {
+		return "", err
+	}
+
+	return keyId, nil
+}

main.go

@@ -12,8 +12,8 @@ import (
 	"os"
 
 	"crispbyte.dev/sig-auth/client"
+	"crispbyte.dev/sig-auth/keydirectory"
 	"crispbyte.dev/sig-auth/server"
-	"crispbyte.dev/sig-auth/sqlite_directory"
 	"github.com/opencontainers/go-digest"
 	"golang.org/x/crypto/ssh"
 )
@@ -31,6 +31,10 @@ func main() {
 
 	simulateCaddy := flag.Bool("caddy", false, "Simulate caddy reverse proxy")
 
+	useTempDb := flag.Bool("temp-db", false, "Use a temporary in-memory database")
+
+	dbPath := flag.String("db", "", "Path to the sqlite database file")
+
 	flag.Parse()
 
 	if *useClient {
@@ -48,7 +52,12 @@ func main() {
 
 		registerKey(*keyPath, *user)
 	} else {
-		runServer(*simulateCaddy)
+		if !*useTempDb && *dbPath == "" {
+			flag.PrintDefaults()
+			return
+		}
+
+		runServer(*simulateCaddy, *useTempDb, *dbPath)
 	}
 }
 
@@ -105,8 +114,19 @@ func runClient(keyFile string, keyId string, simulateCaddy bool) {
 	fmt.Println(string(out[:]))
 }
 
-func runServer(simulateCaddy bool) {
-	keyDir := sqlite_directory.CreateDirectory()
+func runServer(simulateCaddy bool, useTempDb bool, dbPath string) {
+	var keyDir keydirectory.RegistrationDirectory
+
+	if useTempDb {
+		keyDir = keydirectory.CreateMemoryDirectory()
+	} else {
+		var err error
+		keyDir, err = keydirectory.InitSqlite(dbPath)
+
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
 
 	server.Start(simulateCaddy, keyDir)
 }

sqlite_directory/create_directory.go

@@ -1,11 +0,0 @@
-package sqlite_directory
-
-import (
-	"crispbyte.dev/sig-auth/keydirectory"
-)
-
-func CreateDirectory() InMemoryDirectory {
-	return InMemoryDirectory{
-		records: map[string]keydirectory.KeyEntry{},
-	}
-}

sqlite_directory/in_memory_directory.go

@@ -1,59 +0,0 @@
-package sqlite_directory
-
-import (
-	"context"
-	"crypto"
-	"crypto/ed25519"
-	"errors"
-	"fmt"
-
-	"github.com/common-fate/httpsig/alg_ed25519"
-	"github.com/common-fate/httpsig/verifier"
-	"github.com/google/uuid"
-
-	"crispbyte.dev/sig-auth/keydirectory"
-)
-
-type InMemoryDirectory struct {
-	records map[string]keydirectory.KeyEntry
-}
-
-func (dir InMemoryDirectory) GetKey(ctx context.Context, keyId string, _ string) (verifier.Algorithm, error) {
-	entry, ok := dir.records[keyId]
-
-	if !ok {
-		return nil, errors.New("key not found in directory")
-	}
-
-	var alg verifier.Algorithm
-	var err error
-
-	switch entry.Alg {
-	case "ed25519":
-		alg = alg_ed25519.Ed25519{
-			PublicKey: entry.PublicKey.(ed25519.PublicKey),
-			Attrs:     entry.UserId,
-		}
-	default:
-		err = fmt.Errorf("unknown algoritm: %s", entry.Alg)
-	}
-
-	return alg, err
-}
-
-func (dir InMemoryDirectory) RegisterKey(key crypto.PublicKey, alg string, userId string) (string, error) {
-	uuid, err := uuid.NewRandom()
-	keyId := uuid.String()
-
-	if err != nil {
-		return "", err
-	}
-
-	dir.records[keyId] = keydirectory.KeyEntry{
-		Alg:       alg,
-		PublicKey: key,
-		UserId:    userId,
-	}
-
-	return keyId, nil
-}