init from gitlab

internal/server/auth.go

@@ -0,0 +1,43 @@
+package server
+
+import (
+	"fmt"
+	"gitlab.com/texm/shokku/internal/server/auth"
+	"time"
+)
+
+type initAuthConfig struct {
+	SigningKey    []byte
+	TokenLifetime time.Duration
+	Method        auth.Method
+	DebugMode     bool
+	IsSetup       bool
+}
+
+func initAuthenticator(cfg initAuthConfig) (auth.Authenticator, error) {
+	authCfg := auth.Config{
+		SigningKey:    cfg.SigningKey,
+		TokenLifetime: cfg.TokenLifetime,
+	}
+
+	if !cfg.IsSetup {
+		return auth.NewNoneAuthenticator(authCfg)
+	}
+
+	bCryptCost := 14
+	if cfg.DebugMode {
+		// make hashing faster in dev
+		bCryptCost = 3
+	}
+
+	switch cfg.Method {
+	case auth.MethodPassword:
+		return auth.NewPasswordAuthenticator(authCfg, bCryptCost)
+	case auth.MethodGithub:
+		return auth.NewGithubAuthenticator(authCfg)
+	case auth.MethodNone:
+		return auth.NewNoneAuthenticator(authCfg)
+	}
+
+	return nil, fmt.Errorf("unsupported auth method '%s'", cfg.Method)
+}