refactor: use dependency injection in backend

backend/cmd/main.go

@@ -1,7 +1,7 @@
 package main
 
 import (
-	"golang-rest-api-template/internal/bootstrap"
+	"github.com/stonith404/pocket-id/backend/internal/bootstrap"
 )
 
 func main() {

backend/go.mod

@@ -1,4 +1,4 @@
-module golang-rest-api-template
+module github.com/stonith404/pocket-id/backend
 
 go 1.22
 

backend/internal/bootstrap/application_images_bootstrap.go

@@ -0,0 +1,28 @@
+package bootstrap
+
+import (
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"log"
+	"os"
+)
+
+func initApplicationImages() {
+	dirPath := common.EnvConfig.UploadPath + "/application-images"
+
+	files, err := os.ReadDir(dirPath)
+	if err != nil && !os.IsNotExist(err) {
+		log.Fatalf("Error reading directory: %v", err)
+	}
+
+	// Skip if files already exist
+	if len(files) > 1 {
+		return
+	}
+
+	// Copy files from source to destination
+	err = utils.CopyDirectory("./images", dirPath)
+	if err != nil {
+		log.Fatalf("Error copying directory: %v", err)
+	}
+}

backend/internal/bootstrap/bootstrap.go

@@ -1,78 +1,16 @@
 package bootstrap
 
 import (
-	"github.com/gin-gonic/gin"
 	_ "github.com/golang-migrate/migrate/v4/source/file"
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/job"
-	"golang-rest-api-template/internal/common/middleware"
+	"github.com/stonith404/pocket-id/backend/internal/service"
-	"golang-rest-api-template/internal/handler"
-	"golang-rest-api-template/internal/job"
-	"golang-rest-api-template/internal/utils"
-	"golang.org/x/time/rate"
-	"log"
-	"os"
-	"time"
 )
 
 func Bootstrap() {
-	common.InitDatabase()
+	db := newDatabase()
-	common.InitDbConfig()
+	appConfigService := service.NewAppConfigService(db)
+
 	initApplicationImages()
-	job.RegisterJobs()
+	job.RegisterJobs(db)
-	initRouter()
+	initRouter(db, appConfigService)
-}
-
-func initRouter() {
-	switch common.EnvConfig.AppEnv {
-	case "production":
-		gin.SetMode(gin.ReleaseMode)
-	case "development":
-		gin.SetMode(gin.DebugMode)
-	case "test":
-		gin.SetMode(gin.TestMode)
-	}
-
-	r := gin.Default()
-
-	r.Use(gin.Logger())
-
-	r.Use(middleware.Cors())
-	r.Use(middleware.RateLimiter(rate.Every(time.Second), 60))
-
-	apiGroup := r.Group("/api")
-	handler.RegisterRoutes(apiGroup)
-	handler.RegisterOIDCRoutes(apiGroup)
-	handler.RegisterUserRoutes(apiGroup)
-	handler.RegisterConfigurationRoutes(apiGroup)
-	if common.EnvConfig.AppEnv != "production" {
-		handler.RegisterTestRoutes(apiGroup)
-	}
-
-	baseGroup := r.Group("/")
-	handler.RegisterWellKnownRoutes(baseGroup)
-
-	if err := r.Run(common.EnvConfig.Host + ":" + common.EnvConfig.Port); err != nil {
-		log.Fatal(err)
-	}
-
-}
-
-func initApplicationImages() {
-	dirPath := common.EnvConfig.UploadPath + "/application-images"
-
-	files, err := os.ReadDir(dirPath)
-	if err != nil && !os.IsNotExist(err) {
-		log.Fatalf("Error reading directory: %v", err)
-	}
-
-	// Skip if files already exist
-	if len(files) > 1 {
-		return
-	}
-
-	// Copy files from source to destination
-	err = utils.CopyDirectory("./images", dirPath)
-	if err != nil {
-		log.Fatalf("Error copying directory: %v", err)
-	}
 }

backend/internal/bootstrap/db_bootstrap.go

@@ -1,51 +1,54 @@
-package common
+package bootstrap
 
 import (
 	"errors"
 	"github.com/golang-migrate/migrate/v4"
 	"github.com/golang-migrate/migrate/v4/database/sqlite3"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
 	"gorm.io/gorm/logger"
 	"log"
 	"os"
 	"time"
-
-	"gorm.io/driver/sqlite"
-	"gorm.io/gorm"
 )
 
-var DB *gorm.DB
+func newDatabase() (db *gorm.DB) {
-
+	db, err := connectDatabase()
-func InitDatabase() {
-	connectDatabase()
-	sqlDb, err := DB.DB()
 	if err != nil {
-		log.Fatal("failed to get sql db", err)
+		log.Fatalf("failed to connect to database: %v", err)
 	}
+	sqlDb, err := db.DB()
+	if err != nil {
+		log.Fatalf("failed to get sql.DB: %v", err)
+	}
+
 	driver, err := sqlite3.WithInstance(sqlDb, &sqlite3.Config{})
 	m, err := migrate.NewWithDatabaseInstance(
 		"file://migrations",
 		"postgres", driver)
 	if err != nil {
-		log.Fatal("failed to create migration instance", err)
+		log.Fatalf("failed to create migration instance: %v", err)
 	}
 
 	err = m.Up()
 	if err != nil && !errors.Is(err, migrate.ErrNoChange) {
-		log.Fatal("failed to run migrations", err)
+		log.Fatalf("failed to apply migrations: %v", err)
 	}
+
+	return db
 }
 
-func connectDatabase() {
+func connectDatabase() (db *gorm.DB, err error) {
-	var database *gorm.DB
+	dbPath := common.EnvConfig.DBPath
-	var err error
 
-	dbPath := EnvConfig.DBPath
+	// Use in-memory database for testing
-	if EnvConfig.AppEnv == "test" {
+	if common.EnvConfig.AppEnv == "test" {
 		dbPath = "file::memory:?cache=shared"
 	}
 
 	for i := 1; i <= 3; i++ {
-		database, err = gorm.Open(sqlite.Open(dbPath), &gorm.Config{
+		db, err = gorm.Open(sqlite.Open(dbPath), &gorm.Config{
 			TranslateError: true,
 			Logger:         getLogger(),
 		})
@@ -57,11 +60,11 @@ func connectDatabase() {
 		}
 	}
 
-	DB = database
+	return db, err
 }
 
 func getLogger() logger.Interface {
-	isProduction := EnvConfig.AppEnv == "production"
+	isProduction := common.EnvConfig.AppEnv == "production"
 
 	var logLevel logger.LogLevel
 	if isProduction {
@@ -70,7 +73,6 @@ func getLogger() logger.Interface {
 		logLevel = logger.Info
 	}
 
-	// Create the GORM logger
 	return logger.New(
 		log.New(os.Stdout, "\r\n", log.LstdFlags),
 		logger.Config{

backend/internal/bootstrap/router_bootstrap.go

@@ -0,0 +1,67 @@
+package bootstrap
+
+import (
+	"log"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/controller"
+	"github.com/stonith404/pocket-id/backend/internal/middleware"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"golang.org/x/time/rate"
+	"gorm.io/gorm"
+)
+
+func initRouter(db *gorm.DB, appConfigService *service.AppConfigService) {
+	// Set the appropriate Gin mode based on the environment
+	switch common.EnvConfig.AppEnv {
+	case "production":
+		gin.SetMode(gin.ReleaseMode)
+	case "development":
+		gin.SetMode(gin.DebugMode)
+	case "test":
+		gin.SetMode(gin.TestMode)
+	}
+
+	r := gin.Default()
+	r.Use(gin.Logger())
+
+	// Add middleware
+	r.Use(
+		middleware.NewCorsMiddleware().Add(),
+		middleware.NewRateLimitMiddleware().Add(rate.Every(time.Second), 60),
+	)
+
+	// Initialize services
+	webauthnService := service.NewWebAuthnService(db, appConfigService)
+	jwtService := service.NewJwtService(appConfigService)
+	userService := service.NewUserService(db, jwtService)
+	oidcService := service.NewOidcService(db, jwtService)
+	testService := service.NewTestService(db, appConfigService)
+
+	// Initialize middleware
+	jwtAuthMiddleware := middleware.NewJwtAuthMiddleware(jwtService)
+	fileSizeLimitMiddleware := middleware.NewFileSizeLimitMiddleware()
+
+	// Set up API routes
+	apiGroup := r.Group("/api")
+	controller.NewWebauthnController(apiGroup, jwtAuthMiddleware, middleware.NewRateLimitMiddleware(), webauthnService, jwtService)
+	controller.NewOidcController(apiGroup, jwtAuthMiddleware, fileSizeLimitMiddleware, oidcService)
+	controller.NewUserController(apiGroup, jwtAuthMiddleware, middleware.NewRateLimitMiddleware(), userService)
+	controller.NewApplicationConfigurationController(apiGroup, jwtAuthMiddleware, appConfigService)
+
+	// Add test controller in non-production environments
+	if common.EnvConfig.AppEnv != "production" {
+		controller.NewTestController(apiGroup, testService)
+	}
+
+	// Set up base routes
+	baseGroup := r.Group("/")
+	controller.NewWellKnownController(baseGroup, jwtService)
+
+	// Run the server
+	if err := r.Run(common.EnvConfig.Host + ":" + common.EnvConfig.Port); err != nil {
+		log.Fatal(err)
+	}
+}

backend/internal/common/config.go

@@ -1,138 +0,0 @@
-package common
-
-import (
-	"github.com/caarlos0/env/v11"
-	_ "github.com/joho/godotenv/autoload"
-	"golang-rest-api-template/internal/model"
-	"log"
-	"reflect"
-)
-
-type EnvConfigSchema struct {
-	AppEnv     string `env:"APP_ENV"`
-	AppURL     string `env:"PUBLIC_APP_URL"`
-	DBPath     string `env:"DB_PATH"`
-	UploadPath string `env:"UPLOAD_PATH"`
-	Port       string `env:"BACKEND_PORT"`
-	Host       string `env:"HOST"`
-}
-
-var EnvConfig = &EnvConfigSchema{
-	AppEnv:     "production",
-	DBPath:     "data/pocket-id.db",
-	UploadPath: "data/uploads",
-	AppURL:     "http://localhost",
-	Port:       "8080",
-	Host:       "localhost",
-}
-
-var DbConfig = NewDefaultDbConfig()
-
-func NewDefaultDbConfig() model.ApplicationConfiguration {
-	return model.ApplicationConfiguration{
-		AppName: model.ApplicationConfigurationVariable{
-			Key:      "appName",
-			Type:     "string",
-			IsPublic: true,
-			Value:    "Pocket ID",
-		},
-		SessionDuration: model.ApplicationConfigurationVariable{
-			Key:   "sessionDuration",
-			Type:  "number",
-			Value: "60",
-		},
-		BackgroundImageType: model.ApplicationConfigurationVariable{
-			Key:        "backgroundImageType",
-			Type:       "string",
-			IsInternal: true,
-			Value:      "jpg",
-		},
-		LogoImageType: model.ApplicationConfigurationVariable{
-			Key:        "logoImageType",
-			Type:       "string",
-			IsInternal: true,
-			Value:      "svg",
-		},
-	}
-}
-
-// LoadDbConfigFromDb refreshes the database configuration by loading the current values
-// from the database and updating the DbConfig struct.
-func LoadDbConfigFromDb() error {
-	dbConfigReflectValue := reflect.ValueOf(&DbConfig).Elem()
-
-	for i := 0; i < dbConfigReflectValue.NumField(); i++ {
-		dbConfigField := dbConfigReflectValue.Field(i)
-		currentConfigVar := dbConfigField.Interface().(model.ApplicationConfigurationVariable)
-		var storedConfigVar model.ApplicationConfigurationVariable
-		if err := DB.First(&storedConfigVar, "key = ?", currentConfigVar.Key).Error; err != nil {
-			return err
-		}
-
-		dbConfigField.Set(reflect.ValueOf(storedConfigVar))
-	}
-
-	return nil
-}
-
-// InitDbConfig creates the default configuration values in the database if they do not exist,
-// updates existing configurations if they differ from the default, and deletes any configurations
-// that are not in the default configuration.
-func InitDbConfig() {
-	// Reflect to get the underlying value of DbConfig and its default configuration
-	dbConfigReflectValue := reflect.ValueOf(&DbConfig).Elem()
-	defaultDbConfig := NewDefaultDbConfig()
-	defaultConfigReflectValue := reflect.ValueOf(&defaultDbConfig).Elem()
-	defaultKeys := make(map[string]struct{})
-
-	// Iterate over the fields of DbConfig
-	for i := 0; i < dbConfigReflectValue.NumField(); i++ {
-		dbConfigField := dbConfigReflectValue.Field(i)
-		currentConfigVar := dbConfigField.Interface().(model.ApplicationConfigurationVariable)
-		defaultConfigVar := defaultConfigReflectValue.Field(i).Interface().(model.ApplicationConfigurationVariable)
-		defaultKeys[currentConfigVar.Key] = struct{}{}
-
-		var storedConfigVar model.ApplicationConfigurationVariable
-		if err := DB.First(&storedConfigVar, "key = ?", currentConfigVar.Key).Error; err != nil {
-			// If the configuration does not exist, create it
-			if err := DB.Create(&defaultConfigVar).Error; err != nil {
-				log.Fatalf("Failed to create default configuration: %v", err)
-			}
-			dbConfigField.Set(reflect.ValueOf(defaultConfigVar))
-			continue
-		}
-
-		// Update existing configuration if it differs from the default
-		if storedConfigVar.Type != defaultConfigVar.Type || storedConfigVar.IsPublic != defaultConfigVar.IsPublic || storedConfigVar.IsInternal != defaultConfigVar.IsInternal {
-			storedConfigVar.Type = defaultConfigVar.Type
-			storedConfigVar.IsPublic = defaultConfigVar.IsPublic
-			storedConfigVar.IsInternal = defaultConfigVar.IsInternal
-			if err := DB.Save(&storedConfigVar).Error; err != nil {
-				log.Fatalf("Failed to update configuration: %v", err)
-			}
-		}
-
-		// Set the value in DbConfig
-		dbConfigField.Set(reflect.ValueOf(storedConfigVar))
-	}
-
-	// Delete any configurations not in the default keys
-	var allConfigVars []model.ApplicationConfigurationVariable
-	if err := DB.Find(&allConfigVars).Error; err != nil {
-		log.Fatalf("Failed to retrieve existing configurations: %v", err)
-	}
-
-	for _, config := range allConfigVars {
-		if _, exists := defaultKeys[config.Key]; !exists {
-			if err := DB.Delete(&config).Error; err != nil {
-				log.Fatalf("Failed to delete outdated configuration: %v", err)
-			}
-		}
-	}
-}
-
-func init() {
-	if err := env.ParseWithOptions(EnvConfig, env.Options{}); err != nil {
-		log.Fatal(err)
-	}
-}

backend/internal/common/env_config.go

@@ -0,0 +1,31 @@
+package common
+
+import (
+	"github.com/caarlos0/env/v11"
+	_ "github.com/joho/godotenv/autoload"
+	"log"
+)
+
+type EnvConfigSchema struct {
+	AppEnv     string `env:"APP_ENV"`
+	AppURL     string `env:"PUBLIC_APP_URL"`
+	DBPath     string `env:"DB_PATH"`
+	UploadPath string `env:"UPLOAD_PATH"`
+	Port       string `env:"BACKEND_PORT"`
+	Host       string `env:"HOST"`
+}
+
+var EnvConfig = &EnvConfigSchema{
+	AppEnv:     "production",
+	DBPath:     "data/pocket-id.db",
+	UploadPath: "data/uploads",
+	AppURL:     "http://localhost",
+	Port:       "8080",
+	Host:       "localhost",
+}
+
+func init() {
+	if err := env.ParseWithOptions(EnvConfig, env.Options{}); err != nil {
+		log.Fatal(err)
+	}
+}

backend/internal/common/errors.go

@@ -0,0 +1,18 @@
+package common
+
+import "errors"
+
+var (
+	ErrUsernameTaken                = errors.New("username is already taken")
+	ErrEmailTaken                   = errors.New("email is already taken")
+	ErrSetupAlreadyCompleted        = errors.New("setup already completed")
+	ErrInvalidBody                  = errors.New("invalid request body")
+	ErrTokenInvalidOrExpired        = errors.New("token is invalid or expired")
+	ErrOidcMissingAuthorization     = errors.New("missing authorization")
+	ErrOidcGrantTypeNotSupported    = errors.New("grant type not supported")
+	ErrOidcMissingClientCredentials = errors.New("client id or secret not provided")
+	ErrOidcClientSecretInvalid      = errors.New("invalid client secret")
+	ErrOidcInvalidAuthorizationCode = errors.New("invalid authorization code")
+	ErrFileTypeNotSupported         = errors.New("file type not supported")
+	ErrInvalidCredentials           = errors.New("no user found with provided credentials")
+)

backend/internal/common/jwt.go

@@ -1,209 +0,0 @@
-package common
-
-import (
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/base64"
-	"encoding/pem"
-	"errors"
-	"github.com/golang-jwt/jwt/v5"
-	"golang-rest-api-template/internal/model"
-	"golang-rest-api-template/internal/utils"
-	"log"
-	"math/big"
-	"os"
-	"path/filepath"
-	"slices"
-	"strconv"
-	"strings"
-	"time"
-)
-
-var (
-	PrivateKey *rsa.PrivateKey
-	PublicKey  *rsa.PublicKey
-)
-
-const (
-	privateKeyPath = "data/keys/jwt_private_key.pem"
-	publicKeyPath  = "data/keys/jwt_public_key.pem"
-)
-
-type accessTokenJWTClaims struct {
-	jwt.RegisteredClaims
-	IsAdmin bool `json:"isAdmin,omitempty"`
-}
-
-// GenerateIDToken generates an ID token for the given user, clientID, scope and nonce.
-func GenerateIDToken(user model.User, clientID string, scope string, nonce string) (tokenString string, err error) {
-	profileClaims := map[string]interface{}{
-		"given_name":         user.FirstName,
-		"family_name":        user.LastName,
-		"email":              user.Email,
-		"preferred_username": user.Username,
-	}
-
-	claims := jwt.MapClaims{
-		"sub": user.ID,
-		"aud": clientID,
-		"exp": jwt.NewNumericDate(time.Now().Add(1 * time.Hour)),
-		"iat": jwt.NewNumericDate(time.Now()),
-	}
-
-	if nonce != "" {
-		claims["nonce"] = nonce
-	}
-	if strings.Contains(scope, "profile") {
-		for k, v := range profileClaims {
-			claims[k] = v
-		}
-	}
-	if strings.Contains(scope, "email") {
-		claims["email"] = user.Email
-	}
-
-	token := jwt.NewWithClaims(jwt.SigningMethodRS256, claims)
-	signedToken, err := token.SignedString(PrivateKey)
-	if err != nil {
-		return "", err
-	}
-
-	return signedToken, nil
-}
-
-// GenerateAccessToken generates an access token for the given user.
-func GenerateAccessToken(user model.User) (tokenString string, err error) {
-	sessionDurationInMinutes, _ := strconv.Atoi(DbConfig.SessionDuration.Value)
-	claim := accessTokenJWTClaims{
-		RegisteredClaims: jwt.RegisteredClaims{
-			Subject:   user.ID,
-			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(sessionDurationInMinutes) * time.Minute)),
-			IssuedAt:  jwt.NewNumericDate(time.Now()),
-			Audience:  jwt.ClaimStrings{utils.GetHostFromURL(EnvConfig.AppURL)},
-		},
-		IsAdmin: user.IsAdmin,
-	}
-	token := jwt.NewWithClaims(jwt.SigningMethodRS256, claim)
-	tokenString, err = token.SignedString(PrivateKey)
-	return tokenString, err
-}
-
-// VerifyAccessToken verifies the given access token and returns the claims if the token is valid.
-func VerifyAccessToken(tokenString string) (*accessTokenJWTClaims, error) {
-	token, err := jwt.ParseWithClaims(tokenString, &accessTokenJWTClaims{}, func(token *jwt.Token) (interface{}, error) {
-		return PublicKey, nil
-	})
-	if err != nil || !token.Valid {
-		return nil, errors.New("couldn't handle this token")
-	}
-
-	claims, isValid := token.Claims.(*accessTokenJWTClaims)
-	if !isValid {
-		return nil, errors.New("can't parse claims")
-	}
-
-	if !slices.Contains(claims.Audience, utils.GetHostFromURL(EnvConfig.AppURL)) {
-		return nil, errors.New("audience doesn't match")
-	}
-	return claims, nil
-}
-
-type JWK struct {
-	Kty string `json:"kty"`
-	Use string `json:"use"`
-	Kid string `json:"kid"`
-	Alg string `json:"alg"`
-	N   string `json:"n"`
-	E   string `json:"e"`
-}
-
-// GetJWK returns the JSON Web Key (JWK) for the public key.
-func GetJWK() (JWK, error) {
-	if PublicKey == nil {
-		return JWK{}, errors.New("public key is not initialized")
-	}
-
-	// Create JWK from RSA public key
-	jwk := JWK{
-		Kty: "RSA",
-		Use: "sig",
-		Kid: "1", // Key ID can be set to any identifier. Here it's statically set to "1"
-		Alg: "RS256",
-		N:   base64.RawURLEncoding.EncodeToString(PublicKey.N.Bytes()),
-		E:   base64.RawURLEncoding.EncodeToString(big.NewInt(int64(PublicKey.E)).Bytes()),
-	}
-
-	return jwk, nil
-}
-
-// generateKeys generates a new RSA key pair and saves the private and public keys to the data folder.
-func generateKeys() {
-	if err := os.MkdirAll(filepath.Dir(privateKeyPath), 0700); err != nil {
-		log.Fatal("Failed to create directories for keys", err)
-	}
-
-	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
-	if err != nil {
-		log.Fatal("Failed to generate private key", err)
-	}
-
-	privateKeyFile, err := os.Create(privateKeyPath)
-	if err != nil {
-		log.Fatal("Failed to create private key file", err)
-	}
-	defer privateKeyFile.Close()
-
-	privateKeyPEM := pem.EncodeToMemory(
-		&pem.Block{
-			Type:  "RSA PRIVATE KEY",
-			Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
-		},
-	)
-	_, err = privateKeyFile.Write(privateKeyPEM)
-	if err != nil {
-		log.Fatal("Failed to write private key file", err)
-	}
-
-	publicKey := &privateKey.PublicKey
-	publicKeyFile, err := os.Create(publicKeyPath)
-	if err != nil {
-		log.Fatal("Failed to create public key file", err)
-	}
-	defer publicKeyFile.Close()
-
-	publicKeyPEM := pem.EncodeToMemory(
-		&pem.Block{
-			Type:  "RSA PUBLIC KEY",
-			Bytes: x509.MarshalPKCS1PublicKey(publicKey),
-		},
-	)
-	_, err = publicKeyFile.Write(publicKeyPEM)
-	if err != nil {
-		log.Fatal("Failed to write public key file", err)
-	}
-}
-
-func init() {
-	if _, err := os.Stat(privateKeyPath); os.IsNotExist(err) {
-		generateKeys()
-	}
-
-	privateKeyBytes, err := os.ReadFile(privateKeyPath)
-	if err != nil {
-		log.Fatal("Can't read jwt private key", err)
-	}
-	PrivateKey, err = jwt.ParseRSAPrivateKeyFromPEM(privateKeyBytes)
-	if err != nil {
-		log.Fatal("Can't parse jwt private key", err)
-	}
-
-	publicKeyBytes, err := os.ReadFile(publicKeyPath)
-	if err != nil {
-		log.Fatal("Can't read jwt public key", err)
-	}
-	PublicKey, err = jwt.ParseRSAPublicKeyFromPEM(publicKeyBytes)
-	if err != nil {
-		log.Fatal("Can't parse jwt public key", err)
-	}
-}

backend/internal/common/webauthn.go

@@ -1,37 +0,0 @@
-package common
-
-import (
-	"github.com/go-webauthn/webauthn/webauthn"
-	"golang-rest-api-template/internal/utils"
-	"log"
-	"time"
-)
-
-var (
-	WebAuthn *webauthn.WebAuthn
-	err      error
-)
-
-func init() {
-	config := &webauthn.Config{
-		RPDisplayName: DbConfig.AppName.Value,
-		RPID:          utils.GetHostFromURL(EnvConfig.AppURL),
-		RPOrigins:     []string{EnvConfig.AppURL},
-		Timeouts: webauthn.TimeoutsConfig{
-			Login: webauthn.TimeoutConfig{
-				Enforce:    true,
-				Timeout:    time.Second * 60,
-				TimeoutUVD: time.Second * 60,
-			},
-			Registration: webauthn.TimeoutConfig{
-				Enforce:    true,
-				Timeout:    time.Second * 60,
-				TimeoutUVD: time.Second * 60,
-			},
-		},
-	}
-
-	if WebAuthn, err = webauthn.New(config); err != nil {
-		log.Fatal(err)
-	}
-}

backend/internal/controller/app_config_controller.go

@@ -0,0 +1,140 @@
+package controller
+
+import (
+	"errors"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/middleware"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"net/http"
+)
+
+func NewApplicationConfigurationController(
+	group *gin.RouterGroup,
+	jwtAuthMiddleware *middleware.JwtAuthMiddleware,
+	appConfigService *service.AppConfigService) {
+
+	acc := &ApplicationConfigurationController{
+		appConfigService: appConfigService,
+	}
+	group.GET("/application-configuration", acc.listApplicationConfigurationHandler)
+	group.GET("/application-configuration/all", jwtAuthMiddleware.Add(true), acc.listAllApplicationConfigurationHandler)
+	group.PUT("/application-configuration", acc.updateApplicationConfigurationHandler)
+
+	group.GET("/application-configuration/logo", acc.getLogoHandler)
+	group.GET("/application-configuration/background-image", acc.getBackgroundImageHandler)
+	group.GET("/application-configuration/favicon", acc.getFaviconHandler)
+	group.PUT("/application-configuration/logo", jwtAuthMiddleware.Add(true), acc.updateLogoHandler)
+	group.PUT("/application-configuration/favicon", jwtAuthMiddleware.Add(true), acc.updateFaviconHandler)
+	group.PUT("/application-configuration/background-image", jwtAuthMiddleware.Add(true), acc.updateBackgroundImageHandler)
+}
+
+type ApplicationConfigurationController struct {
+	appConfigService *service.AppConfigService
+}
+
+func (acc *ApplicationConfigurationController) listApplicationConfigurationHandler(c *gin.Context) {
+	configuration, err := acc.appConfigService.ListApplicationConfiguration(false)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(200, configuration)
+}
+
+func (acc *ApplicationConfigurationController) listAllApplicationConfigurationHandler(c *gin.Context) {
+	configuration, err := acc.appConfigService.ListApplicationConfiguration(true)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(200, configuration)
+}
+
+func (acc *ApplicationConfigurationController) updateApplicationConfigurationHandler(c *gin.Context) {
+	var input model.AppConfigUpdateDto
+	if err := c.ShouldBindJSON(&input); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	savedConfigVariables, err := acc.appConfigService.UpdateApplicationConfiguration(input)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, savedConfigVariables)
+}
+
+func (acc *ApplicationConfigurationController) getLogoHandler(c *gin.Context) {
+	imageType := acc.appConfigService.DbConfig.LogoImageType.Value
+	acc.getImage(c, "logo", imageType)
+}
+
+func (acc *ApplicationConfigurationController) getFaviconHandler(c *gin.Context) {
+	acc.getImage(c, "favicon", "ico")
+}
+
+func (acc *ApplicationConfigurationController) getBackgroundImageHandler(c *gin.Context) {
+	imageType := acc.appConfigService.DbConfig.BackgroundImageType.Value
+	acc.getImage(c, "background", imageType)
+}
+
+func (acc *ApplicationConfigurationController) updateLogoHandler(c *gin.Context) {
+	imageType := acc.appConfigService.DbConfig.LogoImageType.Value
+	acc.updateImage(c, "logo", imageType)
+}
+
+func (acc *ApplicationConfigurationController) updateFaviconHandler(c *gin.Context) {
+	file, err := c.FormFile("file")
+	if err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	fileType := utils.GetFileExtension(file.Filename)
+	if fileType != "ico" {
+		utils.HandlerError(c, http.StatusBadRequest, "File must be of type .ico")
+		return
+	}
+	acc.updateImage(c, "favicon", "ico")
+}
+
+func (acc *ApplicationConfigurationController) updateBackgroundImageHandler(c *gin.Context) {
+	imageType := acc.appConfigService.DbConfig.BackgroundImageType.Value
+	acc.updateImage(c, "background", imageType)
+}
+
+func (acc *ApplicationConfigurationController) getImage(c *gin.Context, name string, imageType string) {
+	imagePath := fmt.Sprintf("%s/application-images/%s.%s", common.EnvConfig.UploadPath, name, imageType)
+	mimeType := utils.GetImageMimeType(imageType)
+
+	c.Header("Content-Type", mimeType)
+	c.File(imagePath)
+}
+
+func (acc *ApplicationConfigurationController) updateImage(c *gin.Context, imageName string, oldImageType string) {
+	file, err := c.FormFile("file")
+	if err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	err = acc.appConfigService.UpdateImage(file, imageName, oldImageType)
+	if err != nil {
+		if errors.Is(err, common.ErrFileTypeNotSupported) {
+			utils.HandlerError(c, http.StatusBadRequest, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}

backend/internal/controller/oidc_controller.go

@@ -0,0 +1,218 @@
+package controller
+
+import (
+	"errors"
+	"github.com/gin-gonic/gin"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/middleware"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"net/http"
+	"strconv"
+)
+
+func NewOidcController(group *gin.RouterGroup, jwtAuthMiddleware *middleware.JwtAuthMiddleware, fileSizeLimitMiddleware *middleware.FileSizeLimitMiddleware, oidcService *service.OidcService) {
+	oc := &OidcController{OidcService: oidcService}
+
+	group.POST("/oidc/authorize", jwtAuthMiddleware.Add(false), oc.authorizeHandler)
+	group.POST("/oidc/authorize/new-client", jwtAuthMiddleware.Add(false), oc.authorizeNewClientHandler)
+	group.POST("/oidc/token", oc.createIDTokenHandler)
+
+	group.GET("/oidc/clients", jwtAuthMiddleware.Add(true), oc.listClientsHandler)
+	group.POST("/oidc/clients", jwtAuthMiddleware.Add(true), oc.createClientHandler)
+	group.GET("/oidc/clients/:id", oc.getClientHandler)
+	group.PUT("/oidc/clients/:id", jwtAuthMiddleware.Add(true), oc.updateClientHandler)
+	group.DELETE("/oidc/clients/:id", jwtAuthMiddleware.Add(true), oc.deleteClientHandler)
+
+	group.POST("/oidc/clients/:id/secret", jwtAuthMiddleware.Add(true), oc.createClientSecretHandler)
+
+	group.GET("/oidc/clients/:id/logo", oc.getClientLogoHandler)
+	group.DELETE("/oidc/clients/:id/logo", oc.deleteClientLogoHandler)
+	group.POST("/oidc/clients/:id/logo", jwtAuthMiddleware.Add(true), fileSizeLimitMiddleware.Add(2<<20), oc.updateClientLogoHandler)
+}
+
+type OidcController struct {
+	OidcService *service.OidcService
+}
+
+func (oc *OidcController) authorizeHandler(c *gin.Context) {
+	var parsedBody model.AuthorizeRequest
+	if err := c.ShouldBindJSON(&parsedBody); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	code, err := oc.OidcService.Authorize(parsedBody, c.GetString("userID"))
+	if err != nil {
+		if errors.Is(err, common.ErrOidcMissingAuthorization) {
+			utils.HandlerError(c, http.StatusForbidden, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"code": code})
+}
+
+func (oc *OidcController) authorizeNewClientHandler(c *gin.Context) {
+	var parsedBody model.AuthorizeNewClientDto
+	if err := c.ShouldBindJSON(&parsedBody); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	code, err := oc.OidcService.AuthorizeNewClient(parsedBody, c.GetString("userID"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"code": code})
+}
+
+func (oc *OidcController) createIDTokenHandler(c *gin.Context) {
+	var body model.OidcIdTokenDto
+
+	if err := c.ShouldBind(&body); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	idToken, err := oc.OidcService.CreateIDToken(body)
+	if err != nil {
+		if errors.Is(err, common.ErrOidcGrantTypeNotSupported) ||
+			errors.Is(err, common.ErrOidcMissingClientCredentials) ||
+			errors.Is(err, common.ErrOidcClientSecretInvalid) ||
+			errors.Is(err, common.ErrOidcInvalidAuthorizationCode) {
+			utils.HandlerError(c, http.StatusBadRequest, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"id_token": idToken})
+}
+
+func (oc *OidcController) getClientHandler(c *gin.Context) {
+	clientId := c.Param("id")
+	client, err := oc.OidcService.GetClient(clientId)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, client)
+}
+
+func (oc *OidcController) listClientsHandler(c *gin.Context) {
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	pageSize, _ := strconv.Atoi(c.DefaultQuery("limit", "10"))
+	searchTerm := c.Query("search")
+
+	clients, pagination, err := oc.OidcService.ListClients(searchTerm, page, pageSize)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"data":       clients,
+		"pagination": pagination,
+	})
+}
+
+func (oc *OidcController) createClientHandler(c *gin.Context) {
+	var input model.OidcClientCreateDto
+	if err := c.ShouldBindJSON(&input); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	client, err := oc.OidcService.CreateClient(input, c.GetString("userID"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusCreated, client)
+}
+
+func (oc *OidcController) deleteClientHandler(c *gin.Context) {
+	err := oc.OidcService.DeleteClient(c.Param("id"))
+	if err != nil {
+		utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+func (oc *OidcController) updateClientHandler(c *gin.Context) {
+	var input model.OidcClientCreateDto
+	if err := c.ShouldBindJSON(&input); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	client, err := oc.OidcService.UpdateClient(c.Param("id"), input)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusNoContent, client)
+}
+
+func (oc *OidcController) createClientSecretHandler(c *gin.Context) {
+	secret, err := oc.OidcService.CreateClientSecret(c.Param("id"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"secret": secret})
+}
+
+func (oc *OidcController) getClientLogoHandler(c *gin.Context) {
+	imagePath, mimeType, err := oc.OidcService.GetClientLogo(c.Param("id"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.Header("Content-Type", mimeType)
+	c.File(imagePath)
+}
+
+func (oc *OidcController) updateClientLogoHandler(c *gin.Context) {
+	file, err := c.FormFile("file")
+	if err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	err = oc.OidcService.UpdateClientLogo(c.Param("id"), file)
+	if err != nil {
+		if errors.Is(err, common.ErrFileTypeNotSupported) {
+			utils.HandlerError(c, http.StatusBadRequest, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+func (oc *OidcController) deleteClientLogoHandler(c *gin.Context) {
+	err := oc.OidcService.DeleteClientLogo(c.Param("id"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}

backend/internal/controller/test_controller.go

@@ -0,0 +1,36 @@
+package controller
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+)
+
+func NewTestController(group *gin.RouterGroup, testService *service.TestService) {
+	testController := &TestController{TestService: testService}
+
+	group.POST("/test/reset", testController.resetAndSeedHandler)
+}
+
+type TestController struct {
+	TestService *service.TestService
+}
+
+func (tc *TestController) resetAndSeedHandler(c *gin.Context) {
+	if err := tc.TestService.ResetDatabase(); err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	if err := tc.TestService.ResetApplicationImages(); err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	if err := tc.TestService.SeedDatabase(); err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(200, gin.H{"message": "Database reset and seeded"})
+}

backend/internal/controller/user_controller.go

@@ -0,0 +1,182 @@
+package controller
+
+import (
+	"errors"
+	"github.com/gin-gonic/gin"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/middleware"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"golang.org/x/time/rate"
+	"net/http"
+	"strconv"
+	"time"
+)
+
+func NewUserController(group *gin.RouterGroup, jwtAuthMiddleware *middleware.JwtAuthMiddleware, rateLimitMiddleware *middleware.RateLimitMiddleware, userService *service.UserService) {
+	uc := UserController{
+		UserService: userService,
+	}
+
+	group.GET("/users", jwtAuthMiddleware.Add(true), uc.listUsersHandler)
+	group.GET("/users/me", jwtAuthMiddleware.Add(false), uc.getCurrentUserHandler)
+	group.GET("/users/:id", jwtAuthMiddleware.Add(true), uc.getUserHandler)
+	group.POST("/users", jwtAuthMiddleware.Add(true), uc.createUserHandler)
+	group.PUT("/users/:id", jwtAuthMiddleware.Add(true), uc.updateUserHandler)
+	group.PUT("/users/me", jwtAuthMiddleware.Add(false), uc.updateCurrentUserHandler)
+	group.DELETE("/users/:id", jwtAuthMiddleware.Add(true), uc.deleteUserHandler)
+
+	group.POST("/users/:id/one-time-access-token", jwtAuthMiddleware.Add(true), uc.createOneTimeAccessTokenHandler)
+	group.POST("/one-time-access-token/:token", rateLimitMiddleware.Add(rate.Every(10*time.Second), 5), uc.exchangeOneTimeAccessTokenHandler)
+	group.POST("/one-time-access-token/setup", uc.getSetupAccessTokenHandler)
+}
+
+type UserController struct {
+	UserService *service.UserService
+}
+
+func (uc *UserController) listUsersHandler(c *gin.Context) {
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	pageSize, _ := strconv.Atoi(c.DefaultQuery("limit", "10"))
+	searchTerm := c.Query("search")
+
+	users, pagination, err := uc.UserService.ListUsers(searchTerm, page, pageSize)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"data":       users,
+		"pagination": pagination,
+	})
+}
+
+func (uc *UserController) getUserHandler(c *gin.Context) {
+	user, err := uc.UserService.GetUser(c.Param("id"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, user)
+}
+
+func (uc *UserController) getCurrentUserHandler(c *gin.Context) {
+	user, err := uc.UserService.GetUser(c.GetString("userID"))
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+	c.JSON(http.StatusOK, user)
+}
+
+func (uc *UserController) deleteUserHandler(c *gin.Context) {
+	if err := uc.UserService.DeleteUser(c.Param("id")); err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+func (uc *UserController) createUserHandler(c *gin.Context) {
+	var user model.User
+	if err := c.ShouldBindJSON(&user); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	if err := uc.UserService.CreateUser(&user); err != nil {
+		if errors.Is(err, common.ErrEmailTaken) || errors.Is(err, common.ErrUsernameTaken) {
+			utils.HandlerError(c, http.StatusConflict, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.JSON(http.StatusCreated, user)
+}
+
+func (uc *UserController) updateUserHandler(c *gin.Context) {
+	uc.updateUser(c, false)
+}
+
+func (uc *UserController) updateCurrentUserHandler(c *gin.Context) {
+	uc.updateUser(c, true)
+}
+
+func (uc *UserController) createOneTimeAccessTokenHandler(c *gin.Context) {
+	var input model.OneTimeAccessTokenCreateDto
+	if err := c.ShouldBindJSON(&input); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	token, err := uc.UserService.CreateOneTimeAccessToken(input.UserID, input.ExpiresAt)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusCreated, gin.H{"token": token})
+}
+
+func (uc *UserController) exchangeOneTimeAccessTokenHandler(c *gin.Context) {
+	user, token, err := uc.UserService.ExchangeOneTimeAccessToken(c.Param("token"))
+	if err != nil {
+		if errors.Is(err, common.ErrTokenInvalidOrExpired) {
+			utils.HandlerError(c, http.StatusUnauthorized, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.SetCookie("access_token", token, int(time.Hour.Seconds()), "/", "", false, true)
+	c.JSON(http.StatusOK, user)
+}
+
+func (uc *UserController) getSetupAccessTokenHandler(c *gin.Context) {
+	user, token, err := uc.UserService.SetupInitialAdmin()
+	if err != nil {
+		if errors.Is(err, common.ErrSetupAlreadyCompleted) {
+			utils.HandlerError(c, http.StatusBadRequest, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.SetCookie("access_token", token, int(time.Hour.Seconds()), "/", "", false, true)
+	c.JSON(http.StatusOK, user)
+}
+
+func (uc *UserController) updateUser(c *gin.Context, updateOwnUser bool) {
+	var updatedUser model.User
+	if err := c.ShouldBindJSON(&updatedUser); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	var userID string
+	if updateOwnUser {
+		userID = c.GetString("userID")
+	} else {
+		userID = c.Param("id")
+	}
+
+	user, err := uc.UserService.UpdateUser(userID, updatedUser, updateOwnUser)
+	if err != nil {
+		if errors.Is(err, common.ErrEmailTaken) || errors.Is(err, common.ErrUsernameTaken) {
+			utils.HandlerError(c, http.StatusConflict, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	c.JSON(http.StatusOK, user)
+}

backend/internal/controller/webauthn_controller.go

@@ -0,0 +1,160 @@
+package controller
+
+import (
+	"errors"
+	"github.com/go-webauthn/webauthn/protocol"
+	"github.com/stonith404/pocket-id/backend/internal/middleware"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"golang.org/x/time/rate"
+)
+
+func NewWebauthnController(group *gin.RouterGroup, jwtAuthMiddleware *middleware.JwtAuthMiddleware, rateLimitMiddleware *middleware.RateLimitMiddleware, webauthnService *service.WebAuthnService, jwtService *service.JwtService) {
+	wc := &WebauthnController{webAuthnService: webauthnService, jwtService: jwtService}
+	group.GET("/webauthn/register/start", jwtAuthMiddleware.Add(false), wc.beginRegistrationHandler)
+	group.POST("/webauthn/register/finish", jwtAuthMiddleware.Add(false), wc.verifyRegistrationHandler)
+
+	group.GET("/webauthn/login/start", wc.beginLoginHandler)
+	group.POST("/webauthn/login/finish", rateLimitMiddleware.Add(rate.Every(10*time.Second), 5), wc.verifyLoginHandler)
+
+	group.POST("/webauthn/logout", jwtAuthMiddleware.Add(false), wc.logoutHandler)
+
+	group.GET("/webauthn/credentials", jwtAuthMiddleware.Add(false), wc.listCredentialsHandler)
+	group.PATCH("/webauthn/credentials/:id", jwtAuthMiddleware.Add(false), wc.updateCredentialHandler)
+	group.DELETE("/webauthn/credentials/:id", jwtAuthMiddleware.Add(false), wc.deleteCredentialHandler)
+}
+
+type WebauthnController struct {
+	webAuthnService *service.WebAuthnService
+	jwtService      *service.JwtService
+}
+
+func (wc *WebauthnController) beginRegistrationHandler(c *gin.Context) {
+	userID := c.GetString("userID")
+	options, err := wc.webAuthnService.BeginRegistration(userID)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		log.Println(err)
+		return
+	}
+
+	c.SetCookie("session_id", options.SessionID, int(options.Timeout.Seconds()), "/", "", false, true)
+	c.JSON(http.StatusOK, options.Response)
+}
+
+func (wc *WebauthnController) verifyRegistrationHandler(c *gin.Context) {
+	sessionID, err := c.Cookie("session_id")
+	if err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, "Session ID missing")
+		return
+	}
+
+	userID := c.GetString("userID")
+	credential, err := wc.webAuthnService.VerifyRegistration(sessionID, userID, c.Request)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, credential)
+}
+
+func (wc *WebauthnController) beginLoginHandler(c *gin.Context) {
+	options, err := wc.webAuthnService.BeginLogin()
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.SetCookie("session_id", options.SessionID, int(options.Timeout.Seconds()), "/", "", false, true)
+	c.JSON(http.StatusOK, options.Response)
+}
+
+func (wc *WebauthnController) verifyLoginHandler(c *gin.Context) {
+	sessionID, err := c.Cookie("session_id")
+	if err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, "Session ID missing")
+		return
+	}
+
+	credentialAssertionData, err := protocol.ParseCredentialRequestResponseBody(c.Request.Body)
+	if err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	userID := c.GetString("userID")
+	user, err := wc.webAuthnService.VerifyLogin(sessionID, userID, credentialAssertionData)
+	if err != nil {
+		if errors.Is(err, common.ErrInvalidCredentials) {
+			utils.HandlerError(c, http.StatusUnauthorized, err.Error())
+		} else {
+			utils.UnknownHandlerError(c, err)
+		}
+		return
+	}
+
+	token, err := wc.jwtService.GenerateAccessToken(*user)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.SetCookie("access_token", token, int(time.Hour.Seconds()), "/", "", false, true)
+	c.JSON(http.StatusOK, user)
+}
+
+func (wc *WebauthnController) listCredentialsHandler(c *gin.Context) {
+	userID := c.GetString("userID")
+	credentials, err := wc.webAuthnService.ListCredentials(userID)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, credentials)
+}
+
+func (wc *WebauthnController) deleteCredentialHandler(c *gin.Context) {
+	userID := c.GetString("userID")
+	credentialID := c.Param("id")
+
+	err := wc.webAuthnService.DeleteCredential(userID, credentialID)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+func (wc *WebauthnController) updateCredentialHandler(c *gin.Context) {
+	userID := c.GetString("userID")
+	credentialID := c.Param("id")
+
+	var input model.WebauthnCredentialUpdateDto
+	if err := c.ShouldBindJSON(&input); err != nil {
+		utils.HandlerError(c, http.StatusBadRequest, common.ErrInvalidBody.Error())
+		return
+	}
+
+	err := wc.webAuthnService.UpdateCredential(userID, credentialID, input.Name)
+	if err != nil {
+		utils.UnknownHandlerError(c, err)
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+func (wc *WebauthnController) logoutHandler(c *gin.Context) {
+	c.SetCookie("access_token", "", 0, "/", "", false, true)
+	c.Status(http.StatusNoContent)
+}

backend/internal/controller/well_known_controller.go

@@ -1,19 +1,25 @@
-package handler
+package controller
 
 import (
 	"github.com/gin-gonic/gin"
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/common"
-	"golang-rest-api-template/internal/utils"
+	"github.com/stonith404/pocket-id/backend/internal/service"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
 	"net/http"
 )
 
-func RegisterWellKnownRoutes(group *gin.RouterGroup) {
+func NewWellKnownController(group *gin.RouterGroup, jwtService *service.JwtService) {
-	group.GET("/.well-known/jwks.json", jwks)
+	wkc := &WellKnownController{jwtService: jwtService}
-	group.GET("/.well-known/openid-configuration", openIDConfiguration)
+	group.GET("/.well-known/jwks.json", wkc.jwksHandler)
+	group.GET("/.well-known/openid-configuration", wkc.openIDConfigurationHandler)
 }
 
-func jwks(c *gin.Context) {
+type WellKnownController struct {
-	jwk, err := common.GetJWK()
+	jwtService *service.JwtService
+}
+
+func (wkc *WellKnownController) jwksHandler(c *gin.Context) {
+	jwk, err := wkc.jwtService.GetJWK()
 	if err != nil {
 		utils.UnknownHandlerError(c, err)
 		return
@@ -22,7 +28,7 @@ func jwks(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"keys": []interface{}{jwk}})
 }
 
-func openIDConfiguration(c *gin.Context) {
+func (wkc *WellKnownController) openIDConfigurationHandler(c *gin.Context) {
 	appUrl := common.EnvConfig.AppURL
 	config := map[string]interface{}{
 		"issuer":                                appUrl,

backend/internal/handler/application_configuration.go

@@ -1,196 +0,0 @@
-package handler
-
-import (
-	"errors"
-	"fmt"
-	"github.com/gin-gonic/gin"
-	"golang-rest-api-template/internal/common"
-	"golang-rest-api-template/internal/common/middleware"
-	"golang-rest-api-template/internal/model"
-	"golang-rest-api-template/internal/utils"
-	"gorm.io/gorm"
-	"net/http"
-	"os"
-	"reflect"
-)
-
-func RegisterConfigurationRoutes(group *gin.RouterGroup) {
-	group.GET("/application-configuration", listApplicationConfigurationHandler)
-	group.GET("/application-configuration/all", middleware.JWTAuth(true), listAllApplicationConfigurationHandler)
-	group.PUT("/application-configuration", updateApplicationConfigurationHandler)
-
-	group.GET("/application-configuration/logo", getLogoHandler)
-	group.GET("/application-configuration/background-image", getBackgroundImageHandler)
-	group.GET("/application-configuration/favicon", getFaviconHandler)
-	group.PUT("/application-configuration/logo", middleware.JWTAuth(true), updateLogoHandler)
-	group.PUT("/application-configuration/favicon", middleware.JWTAuth(true), updateFaviconHandler)
-	group.PUT("/application-configuration/background-image", middleware.JWTAuth(true), updateBackgroundImageHandler)
-}
-
-func listApplicationConfigurationHandler(c *gin.Context) {
-	listApplicationConfiguration(c, false)
-}
-
-func listAllApplicationConfigurationHandler(c *gin.Context) {
-	listApplicationConfiguration(c, true)
-}
-
-func updateApplicationConfigurationHandler(c *gin.Context) {
-	var input model.ApplicationConfigurationUpdateDto
-	if err := c.ShouldBindJSON(&input); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	savedConfigVariables := make([]model.ApplicationConfigurationVariable, 10)
-
-	tx := common.DB.Begin()
-	rt := reflect.ValueOf(input).Type()
-	rv := reflect.ValueOf(input)
-
-	// Loop over the input struct fields and update the related configuration variables
-	for i := 0; i < rt.NumField(); i++ {
-		field := rt.Field(i)
-		key := field.Tag.Get("json")
-		value := rv.FieldByName(field.Name).String()
-
-		// Get the existing configuration variable from the db
-		var applicationConfigurationVariable model.ApplicationConfigurationVariable
-		if err := tx.First(&applicationConfigurationVariable, "key = ? AND is_internal = false", key).Error; err != nil {
-			tx.Rollback()
-			if errors.Is(err, gorm.ErrRecordNotFound) {
-				utils.HandlerError(c, http.StatusNotFound, fmt.Sprintf("Invalid configuration variable '%s'", value))
-			} else {
-				utils.UnknownHandlerError(c, err)
-			}
-			return
-		}
-
-		// Update the value of the existing configuration variable and save it
-		applicationConfigurationVariable.Value = value
-		if err := tx.Save(&applicationConfigurationVariable).Error; err != nil {
-			tx.Rollback()
-			utils.UnknownHandlerError(c, err)
-			return
-		}
-
-		savedConfigVariables[i] = applicationConfigurationVariable
-	}
-
-	tx.Commit()
-
-	if err := common.LoadDbConfigFromDb(); err != nil {
-		utils.UnknownHandlerError(c, err)
-	}
-
-	c.JSON(http.StatusOK, savedConfigVariables)
-
-}
-
-func getLogoHandler(c *gin.Context) {
-	imagType := common.DbConfig.LogoImageType.Value
-	getImage(c, "logo", imagType)
-}
-
-func getFaviconHandler(c *gin.Context) {
-	getImage(c, "favicon", "ico")
-}
-
-func getBackgroundImageHandler(c *gin.Context) {
-	imageType := common.DbConfig.BackgroundImageType.Value
-	getImage(c, "background", imageType)
-}
-
-func updateLogoHandler(c *gin.Context) {
-	imageType := common.DbConfig.LogoImageType.Value
-	updateImage(c, "logo", imageType)
-}
-
-func updateFaviconHandler(c *gin.Context) {
-	file, err := c.FormFile("file")
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-	fileType := utils.GetFileExtension(file.Filename)
-	if fileType != "ico" {
-		utils.HandlerError(c, http.StatusBadRequest, "File must be of type .ico")
-		return
-	}
-	updateImage(c, "favicon", "ico")
-}
-
-func updateBackgroundImageHandler(c *gin.Context) {
-	imagType := common.DbConfig.BackgroundImageType.Value
-	updateImage(c, "background", imagType)
-}
-
-func getImage(c *gin.Context, name string, imageType string) {
-	imagePath := fmt.Sprintf("%s/application-images/%s.%s", common.EnvConfig.UploadPath, name, imageType)
-	mimeType := utils.GetImageMimeType(imageType)
-
-	c.Header("Content-Type", mimeType)
-	c.File(imagePath)
-}
-
-func updateImage(c *gin.Context, imageName string, oldImageType string) {
-	file, err := c.FormFile("file")
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	fileType := utils.GetFileExtension(file.Filename)
-	if mimeType := utils.GetImageMimeType(fileType); mimeType == "" {
-		utils.HandlerError(c, http.StatusBadRequest, "File type not supported")
-		return
-	}
-
-	// Delete the old image if it has a different file type
-	if fileType != oldImageType {
-		oldImagePath := fmt.Sprintf("%s/application-images/%s.%s", common.EnvConfig.UploadPath, imageName, oldImageType)
-		if err := os.Remove(oldImagePath); err != nil {
-			utils.UnknownHandlerError(c, err)
-			return
-		}
-	}
-
-	imagePath := fmt.Sprintf("%s/application-images/%s.%s", common.EnvConfig.UploadPath, imageName, fileType)
-	err = c.SaveUploadedFile(file, imagePath)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	// Update the file type in the database
-	key := fmt.Sprintf("%sImageType", imageName)
-	err = common.DB.Model(&model.ApplicationConfigurationVariable{}).Where("key = ?", key).Update("value", fileType).Error
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	if err := common.LoadDbConfigFromDb(); err != nil {
-		utils.UnknownHandlerError(c, err)
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func listApplicationConfiguration(c *gin.Context, showAll bool) {
-	var configuration []model.ApplicationConfigurationVariable
-	var err error
-
-	if showAll {
-		err = common.DB.Find(&configuration).Error
-	} else {
-		err = common.DB.Find(&configuration, "is_public = true").Error
-	}
-
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(200, configuration)
-}

backend/internal/handler/oidc.go

@@ -1,415 +0,0 @@
-package handler
-
-import (
-	"errors"
-	"fmt"
-	"github.com/gin-gonic/gin"
-	"golang-rest-api-template/internal/common"
-	"golang-rest-api-template/internal/common/middleware"
-	"golang-rest-api-template/internal/model"
-	"golang-rest-api-template/internal/utils"
-	"golang.org/x/crypto/bcrypt"
-	"gorm.io/gorm"
-	"net/http"
-	"os"
-	"time"
-)
-
-func RegisterOIDCRoutes(group *gin.RouterGroup) {
-	group.POST("/oidc/authorize", middleware.JWTAuth(false), authorizeHandler)
-	group.POST("/oidc/authorize/new-client", middleware.JWTAuth(false), authorizeNewClientHandler)
-	group.POST("/oidc/token", createIDTokenHandler)
-
-	group.GET("/oidc/clients", middleware.JWTAuth(true), listClientsHandler)
-	group.POST("/oidc/clients", middleware.JWTAuth(true), createClientHandler)
-	group.GET("/oidc/clients/:id", getClientHandler)
-	group.PUT("/oidc/clients/:id", middleware.JWTAuth(true), updateClientHandler)
-	group.DELETE("/oidc/clients/:id", middleware.JWTAuth(true), deleteClientHandler)
-
-	group.POST("/oidc/clients/:id/secret", middleware.JWTAuth(true), createClientSecretHandler)
-
-	group.GET("/oidc/clients/:id/logo", getClientLogoHandler)
-	group.DELETE("/oidc/clients/:id/logo", deleteClientLogoHandler)
-	group.POST("/oidc/clients/:id/logo", middleware.JWTAuth(true), middleware.LimitFileSize(2<<20), updateClientLogoHandler)
-}
-
-type AuthorizeRequest struct {
-	ClientID string `json:"clientID" binding:"required"`
-	Scope    string `json:"scope" binding:"required"`
-	Nonce    string `json:"nonce"`
-}
-
-func authorizeHandler(c *gin.Context) {
-	var parsedBody AuthorizeRequest
-	if err := c.ShouldBindJSON(&parsedBody); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	var userAuthorizedOIDCClient model.UserAuthorizedOidcClient
-	common.DB.First(&userAuthorizedOIDCClient, "client_id = ? AND user_id = ?", parsedBody.ClientID, c.GetString("userID"))
-
-	// If the record isn't found or the scope is different return an error
-	// The client will have to call the authorizeNewClientHandler
-	if userAuthorizedOIDCClient.Scope != parsedBody.Scope {
-		utils.HandlerError(c, http.StatusForbidden, "missing authorization")
-		return
-	}
-
-	authorizationCode, err := createAuthorizationCode(parsedBody.ClientID, c.GetString("userID"), parsedBody.Scope, parsedBody.Nonce)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, gin.H{"code": authorizationCode})
-}
-
-// authorizeNewClientHandler authorizes a new client for the user
-// a new client is a new client when the user has not authorized the client before
-func authorizeNewClientHandler(c *gin.Context) {
-	var parsedBody model.AuthorizeNewClientDto
-	if err := c.ShouldBindJSON(&parsedBody); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	userAuthorizedClient := model.UserAuthorizedOidcClient{
-		UserID:   c.GetString("userID"),
-		ClientID: parsedBody.ClientID,
-		Scope:    parsedBody.Scope,
-	}
-	err := common.DB.Create(&userAuthorizedClient).Error
-
-	if err != nil && errors.Is(err, gorm.ErrDuplicatedKey) {
-		err = common.DB.Model(&userAuthorizedClient).Update("scope", parsedBody.Scope).Error
-	}
-
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	authorizationCode, err := createAuthorizationCode(parsedBody.ClientID, c.GetString("userID"), parsedBody.Scope, parsedBody.Nonce)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, gin.H{"code": authorizationCode})
-
-}
-
-func createIDTokenHandler(c *gin.Context) {
-	var body model.OidcIdTokenDto
-
-	if err := c.ShouldBind(&body); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	// Currently only authorization_code grant type is supported
-	if body.GrantType != "authorization_code" {
-		utils.HandlerError(c, http.StatusBadRequest, "grant type not supported")
-		return
-	}
-
-	clientID := body.ClientID
-	clientSecret := body.ClientSecret
-
-	// Client id and secret can also be passed over the Authorization header
-	if clientID == "" || clientSecret == "" {
-		var ok bool
-		clientID, clientSecret, ok = c.Request.BasicAuth()
-		if !ok {
-			utils.HandlerError(c, http.StatusBadRequest, "Client id and secret not provided")
-			return
-		}
-	}
-
-	// Get the client
-	var client model.OidcClient
-	err := common.DB.First(&client, "id = ?", clientID, clientSecret).Error
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "OIDC OIDC client not found")
-		return
-	}
-
-	// Check if client secret is correct
-	err = bcrypt.CompareHashAndPassword([]byte(client.Secret), []byte(clientSecret))
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid client secret")
-		return
-	}
-
-	var authorizationCodeMetaData model.OidcAuthorizationCode
-	err = common.DB.Preload("User").First(&authorizationCodeMetaData, "code = ?", body.Code).Error
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid authorization code")
-		return
-	}
-
-	// Check if the client id matches the client id in the authorization code and if the code has expired
-	if authorizationCodeMetaData.ClientID != clientID && authorizationCodeMetaData.ExpiresAt.Before(time.Now()) {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid authorization code")
-		return
-	}
-
-	idToken, e := common.GenerateIDToken(authorizationCodeMetaData.User, clientID, authorizationCodeMetaData.Scope, authorizationCodeMetaData.Nonce)
-	if e != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	// Delete the authorization code after it has been used
-	common.DB.Delete(&authorizationCodeMetaData)
-
-	c.JSON(http.StatusOK, gin.H{"id_token": idToken})
-}
-
-func getClientHandler(c *gin.Context) {
-	clientId := c.Param("id")
-
-	var client model.OidcClient
-	err := common.DB.First(&client, "id = ?", clientId).Error
-	if err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
-		return
-	}
-
-	c.JSON(http.StatusOK, client)
-}
-
-func listClientsHandler(c *gin.Context) {
-	var clients []model.OidcClient
-	searchTerm := c.Query("search")
-
-	query := common.DB.Model(&model.OidcClient{})
-
-	if searchTerm != "" {
-		searchPattern := "%" + searchTerm + "%"
-		query = query.Where("name LIKE ?", searchPattern)
-	}
-
-	pagination, err := utils.Paginate(c, query, &clients)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, gin.H{
-		"data":       clients,
-		"pagination": pagination,
-	})
-}
-
-func createClientHandler(c *gin.Context) {
-	var input model.OidcClientCreateDto
-	if err := c.ShouldBindJSON(&input); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	client := model.OidcClient{
-		Name:        input.Name,
-		CallbackURL: input.CallbackURL,
-		CreatedByID: c.GetString("userID"),
-	}
-
-	if err := common.DB.Create(&client).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusCreated, client)
-}
-
-func deleteClientHandler(c *gin.Context) {
-	var client model.OidcClient
-	if err := common.DB.First(&client, "id = ?", c.Param("id")).Error; err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "OIDC OIDC client not found")
-		return
-	}
-
-	if err := common.DB.Delete(&client).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func updateClientHandler(c *gin.Context) {
-	var input model.OidcClientCreateDto
-	if err := c.ShouldBindJSON(&input); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	var client model.OidcClient
-	if err := common.DB.First(&client, "id = ?", c.Param("id")).Error; err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
-			return
-		}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	client.Name = input.Name
-	client.CallbackURL = input.CallbackURL
-
-	if err := common.DB.Save(&client).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusNoContent, client)
-}
-
-// createClientSecretHandler creates a new secret for the client and revokes the old one
-func createClientSecretHandler(c *gin.Context) {
-	var client model.OidcClient
-	if err := common.DB.First(&client, "id = ?", c.Param("id")).Error; err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
-			return
-		}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	clientSecret, err := utils.GenerateRandomAlphanumericString(32)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	hashedSecret, err := bcrypt.GenerateFromPassword([]byte(clientSecret), bcrypt.DefaultCost)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	client.Secret = string(hashedSecret)
-	if err := common.DB.Save(&client).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, gin.H{"secret": clientSecret})
-}
-
-func getClientLogoHandler(c *gin.Context) {
-	var client model.OidcClient
-	if err := common.DB.First(&client, "id = ?", c.Param("id")).Error; err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
-		return
-	}
-
-	if client.ImageType == nil {
-		utils.HandlerError(c, http.StatusNotFound, "image not found")
-		return
-	}
-
-	imageType := *client.ImageType
-
-	imagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, client.ID, imageType)
-	mimeType := utils.GetImageMimeType(imageType)
-
-	c.Header("Content-Type", mimeType)
-	c.File(imagePath)
-}
-
-func updateClientLogoHandler(c *gin.Context) {
-	file, err := c.FormFile("file")
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	fileType := utils.GetFileExtension(file.Filename)
-	if mimeType := utils.GetImageMimeType(fileType); mimeType == "" {
-		utils.HandlerError(c, http.StatusBadRequest, "file type not supported")
-		return
-	}
-
-	imagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, c.Param("id"), fileType)
-	err = c.SaveUploadedFile(file, imagePath)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	var client model.OidcClient
-	if err := common.DB.First(&client, "id = ?", c.Param("id")).Error; err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
-		return
-	}
-
-	// Delete the old image if it has a different file type
-	if client.ImageType != nil && fileType != *client.ImageType {
-		oldImagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, client.ID, *client.ImageType)
-		if err := os.Remove(oldImagePath); err != nil {
-			utils.UnknownHandlerError(c, err)
-			return
-		}
-	}
-
-	client.ImageType = &fileType
-	if err := common.DB.Save(&client).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func deleteClientLogoHandler(c *gin.Context) {
-	var client model.OidcClient
-	if err := common.DB.First(&client, "id = ?", c.Param("id")).Error; err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "OIDC client not found")
-		return
-	}
-
-	if client.ImageType == nil {
-		utils.HandlerError(c, http.StatusNotFound, "image not found")
-		return
-	}
-
-	imagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, client.ID, *client.ImageType)
-	if err := os.Remove(imagePath); err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	client.ImageType = nil
-	if err := common.DB.Save(&client).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func createAuthorizationCode(clientID string, userID string, scope string, nonce string) (string, error) {
-	randomString, err := utils.GenerateRandomAlphanumericString(32)
-	if err != nil {
-		return "", err
-	}
-
-	oidcAuthorizationCode := model.OidcAuthorizationCode{
-		ExpiresAt: time.Now().Add(15 * time.Minute),
-		Code:      randomString,
-		ClientID:  clientID,
-		UserID:    userID,
-		Scope:     scope,
-		Nonce:     nonce,
-	}
-
-	if err := common.DB.Create(&oidcAuthorizationCode).Error; err != nil {
-		return "", err
-	}
-
-	return randomString, nil
-}

backend/internal/handler/user.go

@@ -1,276 +0,0 @@
-package handler
-
-import (
-	"errors"
-	"github.com/gin-gonic/gin"
-	"golang-rest-api-template/internal/common"
-	"golang-rest-api-template/internal/common/middleware"
-	"golang-rest-api-template/internal/model"
-	"golang-rest-api-template/internal/utils"
-	"golang.org/x/time/rate"
-	"gorm.io/gorm"
-	"log"
-	"net/http"
-	"time"
-)
-
-func RegisterUserRoutes(group *gin.RouterGroup) {
-	group.GET("/users", middleware.JWTAuth(true), listUsersHandler)
-	group.GET("/users/me", middleware.JWTAuth(false), getCurrentUserHandler)
-	group.GET("/users/:id", middleware.JWTAuth(true), getUserHandler)
-	group.POST("/users", middleware.JWTAuth(true), createUserHandler)
-	group.PUT("/users/:id", middleware.JWTAuth(true), updateUserHandler)
-	group.PUT("/users/me", middleware.JWTAuth(false), updateCurrentUserHandler)
-	group.DELETE("/users/:id", middleware.JWTAuth(true), deleteUserHandler)
-
-	group.POST("/users/:id/one-time-access-token", middleware.JWTAuth(true), createOneTimeAccessTokenHandler)
-	group.POST("/one-time-access-token/:token", middleware.RateLimiter(rate.Every(10*time.Second), 5), exchangeOneTimeAccessTokenHandler)
-	group.POST("/one-time-access-token/setup", getSetupAccessTokenHandler)
-}
-
-func listUsersHandler(c *gin.Context) {
-	var users []model.User
-	searchTerm := c.Query("search")
-
-	query := common.DB.Model(&model.User{})
-
-	if searchTerm != "" {
-		searchPattern := "%" + searchTerm + "%"
-		query = query.Where("email LIKE ? OR first_name LIKE ? OR username LIKE ?", searchPattern, searchPattern, searchPattern)
-	}
-
-	pagination, err := utils.Paginate(c, query, &users)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, gin.H{
-		"data":       users,
-		"pagination": pagination,
-	})
-}
-
-func getUserHandler(c *gin.Context) {
-	var user model.User
-	if err := common.DB.Where("id = ?", c.Param("id")).First(&user).Error; err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			utils.HandlerError(c, http.StatusNotFound, "User not found")
-			return
-		}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, user)
-}
-
-func getCurrentUserHandler(c *gin.Context) {
-	var user model.User
-	if err := common.DB.Where("id = ?", c.GetString("userID")).First(&user).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-	c.JSON(http.StatusOK, user)
-
-}
-
-func deleteUserHandler(c *gin.Context) {
-	var user model.User
-	if err := common.DB.Where("id = ?", c.Param("id")).First(&user).Error; err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			utils.HandlerError(c, http.StatusNotFound, "User not found")
-			return
-		}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	if err := common.DB.Delete(&user).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func createUserHandler(c *gin.Context) {
-	var user model.User
-	if err := c.ShouldBindJSON(&user); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	if err := common.DB.Create(&user).Error; err != nil {
-		if errors.Is(err, gorm.ErrDuplicatedKey) {
-			if err := checkDuplicatedFields(user); err != nil {
-				utils.HandlerError(c, http.StatusBadRequest, err.Error())
-				return
-			}
-		} else {
-			utils.UnknownHandlerError(c, err)
-			return
-		}
-	}
-
-	c.JSON(http.StatusCreated, user)
-}
-
-func updateUserHandler(c *gin.Context) {
-	updateUser(c, c.Param("id"), false)
-}
-
-func updateCurrentUserHandler(c *gin.Context) {
-	updateUser(c, c.GetString("userID"), true)
-}
-
-func createOneTimeAccessTokenHandler(c *gin.Context) {
-	var input model.OneTimeAccessTokenCreateDto
-	if err := c.ShouldBindJSON(&input); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	randomString, err := utils.GenerateRandomAlphanumericString(16)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	oneTimeAccessToken := model.OneTimeAccessToken{
-		UserID:    input.UserID,
-		ExpiresAt: input.ExpiresAt,
-		Token:     randomString,
-	}
-
-	if err := common.DB.Create(&oneTimeAccessToken).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusCreated, gin.H{"token": oneTimeAccessToken.Token})
-}
-
-func exchangeOneTimeAccessTokenHandler(c *gin.Context) {
-	var oneTimeAccessToken model.OneTimeAccessToken
-	if err := common.DB.Where("token = ? AND expires_at > ?", c.Param("token"), utils.FormatDateForDb(time.Now())).Preload("User").First(&oneTimeAccessToken).Error; err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			utils.HandlerError(c, http.StatusForbidden, "Token is invalid or expired")
-			return
-		}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	token, err := common.GenerateAccessToken(oneTimeAccessToken.User)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		log.Println(err)
-		return
-	}
-
-	if err := common.DB.Delete(&oneTimeAccessToken).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.SetCookie("access_token", token, int(time.Hour.Seconds()), "/", "", false, true)
-
-	c.JSON(http.StatusOK, oneTimeAccessToken.User)
-}
-
-// getSetupAccessTokenHandler creates the initial admin user and returns an access token for the user
-// This handler is only available if there are no users in the database
-func getSetupAccessTokenHandler(c *gin.Context) {
-	var userCount int64
-	if err := common.DB.Model(&model.User{}).Count(&userCount).Error; err != nil {
-		log.Fatal("failed to count users", err)
-	}
-
-	// If there are more than one user, we don't need to create the admin user
-	if userCount > 1 {
-		utils.HandlerError(c, http.StatusForbidden, "Setup already completed")
-		return
-	}
-
-	var user = model.User{
-		FirstName: "Admin",
-		LastName:  "Admin",
-		Username:  "admin",
-		Email:     "admin@admin.com",
-		IsAdmin:   true,
-	}
-
-	// Create the initial admin user if it doesn't exist
-	if err := common.DB.Model(&model.User{}).Preload("Credentials").FirstOrCreate(&user).Error; err != nil {
-		log.Fatal("failed to create admin user", err)
-	}
-
-	// If the user already has credentials, the setup is already completed
-	if len(user.Credentials) > 0 {
-		utils.HandlerError(c, http.StatusForbidden, "Setup already completed")
-		return
-	}
-
-	token, err := common.GenerateAccessToken(user)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		log.Println(err)
-		return
-	}
-	c.SetCookie("access_token", token, int(time.Hour.Seconds()), "/", "", false, true)
-	c.JSON(http.StatusOK, user)
-}
-
-func updateUser(c *gin.Context, userID string, updateOwnUser bool) {
-	var user model.User
-	if err := common.DB.Where("id = ?", userID).First(&user).Error; err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			utils.HandlerError(c, http.StatusNotFound, "User not found")
-			return
-		}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-	var updatedUser model.User
-	if err := c.ShouldBindJSON(&updatedUser); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	user.FirstName = updatedUser.FirstName
-	user.LastName = updatedUser.LastName
-	user.Email = updatedUser.Email
-	user.Username = updatedUser.Username
-	user.Username = updatedUser.Username
-	if !updateOwnUser {
-		user.IsAdmin = updatedUser.IsAdmin
-	}
-
-	if err := common.DB.Save(user).Error; err != nil {
-		if errors.Is(err, gorm.ErrDuplicatedKey) {
-			if err := checkDuplicatedFields(user); err != nil {
-				utils.HandlerError(c, http.StatusBadRequest, err.Error())
-				return
-			}
-		} else {
-			utils.UnknownHandlerError(c, err)
-			return
-		}
-	}
-	c.JSON(http.StatusOK, user)
-}
-
-func checkDuplicatedFields(user model.User) error {
-	var existingUser model.User
-
-	if common.DB.Where("id != ? AND email = ?", user.ID, user.Email).First(&existingUser).Error == nil {
-		return errors.New("email is already taken")
-	}
-
-	if common.DB.Where("id != ? AND username = ?", user.ID, user.Username).First(&existingUser).Error == nil {
-		return errors.New("username is already taken")
-	}
-
-	return nil
-}

backend/internal/handler/webauthn.go

@@ -1,257 +0,0 @@
-package handler
-
-import (
-	"github.com/gin-gonic/gin"
-	"github.com/go-webauthn/webauthn/protocol"
-	"github.com/go-webauthn/webauthn/webauthn"
-	"golang-rest-api-template/internal/common"
-	"golang-rest-api-template/internal/common/middleware"
-	"golang-rest-api-template/internal/model"
-	"golang-rest-api-template/internal/utils"
-	"golang.org/x/time/rate"
-	"gorm.io/gorm"
-	"log"
-	"net/http"
-	"strings"
-	"time"
-)
-
-func RegisterRoutes(group *gin.RouterGroup) {
-	group.GET("/webauthn/register/start", middleware.JWTAuth(false), beginRegistrationHandler)
-	group.POST("/webauthn/register/finish", middleware.JWTAuth(false), verifyRegistrationHandler)
-
-	group.GET("/webauthn/login/start", beginLoginHandler)
-	group.POST("/webauthn/login/finish", middleware.RateLimiter(rate.Every(10*time.Second), 5), verifyLoginHandler)
-
-	group.POST("/webauthn/logout", middleware.JWTAuth(false), logoutHandler)
-
-	group.GET("/webauthn/credentials", middleware.JWTAuth(false), listCredentialsHandler)
-	group.PATCH("/webauthn/credentials/:id", middleware.JWTAuth(false), updateCredentialHandler)
-	group.DELETE("/webauthn/credentials/:id", middleware.JWTAuth(false), deleteCredentialHandler)
-}
-
-func beginRegistrationHandler(c *gin.Context) {
-	var user model.User
-	err := common.DB.Preload("Credentials").Find(&user, "id = ?", c.GetString("userID")).Error
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		log.Println(err)
-		return
-	}
-
-	options, session, err := common.WebAuthn.BeginRegistration(&user, webauthn.WithResidentKeyRequirement(protocol.ResidentKeyRequirementRequired), webauthn.WithExclusions(user.WebAuthnCredentialDescriptors()))
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	// Save the webauthn session so we can retrieve it in the verifyRegistrationHandler
-	sessionToStore := &model.WebauthnSession{
-		ExpiresAt:        session.Expires,
-		Challenge:        session.Challenge,
-		UserVerification: string(session.UserVerification),
-	}
-
-	if err = common.DB.Create(&sessionToStore).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.SetCookie("session_id", sessionToStore.ID, int(common.WebAuthn.Config.Timeouts.Registration.Timeout.Seconds()), "/", "", false, true)
-	c.JSON(http.StatusOK, options.Response)
-}
-
-func verifyRegistrationHandler(c *gin.Context) {
-	sessionID, err := c.Cookie("session_id")
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "Session ID missing")
-		return
-	}
-
-	// Retrieve the session that was previously created by the beginRegistrationHandler
-	var storedSession model.WebauthnSession
-	err = common.DB.First(&storedSession, "id = ?", sessionID).Error
-
-	session := webauthn.SessionData{
-		Challenge: storedSession.Challenge,
-		Expires:   storedSession.ExpiresAt,
-		UserID:    []byte(c.GetString("userID")),
-	}
-
-	var user model.User
-	err = common.DB.Find(&user, "id = ?", c.GetString("userID")).Error
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	credential, err := common.WebAuthn.FinishRegistration(&user, session, c.Request)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	credentialToStore := model.WebauthnCredential{
-		Name:            "New Passkey",
-		CredentialID:    string(credential.ID),
-		AttestationType: credential.AttestationType,
-		PublicKey:       credential.PublicKey,
-		Transport:       credential.Transport,
-		UserID:          user.ID,
-		BackupEligible:  credential.Flags.BackupEligible,
-		BackupState:     credential.Flags.BackupState,
-	}
-	if err := common.DB.Create(&credentialToStore).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, credentialToStore)
-}
-
-func beginLoginHandler(c *gin.Context) {
-	options, session, err := common.WebAuthn.BeginDiscoverableLogin()
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	// Save the webauthn session so we can retrieve it in the verifyLoginHandler
-	sessionToStore := &model.WebauthnSession{
-		ExpiresAt:        session.Expires,
-		Challenge:        session.Challenge,
-		UserVerification: string(session.UserVerification),
-	}
-
-	if err = common.DB.Create(&sessionToStore).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.SetCookie("session_id", sessionToStore.ID, int(common.WebAuthn.Config.Timeouts.Registration.Timeout.Seconds()), "/", "", false, true)
-	c.JSON(http.StatusOK, options.Response)
-}
-
-func verifyLoginHandler(c *gin.Context) {
-	sessionID, err := c.Cookie("session_id")
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "Session ID missing")
-		return
-	}
-
-	credentialAssertionData, err := protocol.ParseCredentialRequestResponseBody(c.Request.Body)
-	if err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "Invalid body")
-		return
-	}
-
-	// Retrieve the session that was previously created by the beginLoginHandler
-	var storedSession model.WebauthnSession
-	if err := common.DB.First(&storedSession, "id = ?", sessionID).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	session := webauthn.SessionData{
-		Challenge: storedSession.Challenge,
-		Expires:   storedSession.ExpiresAt,
-	}
-
-	var user *model.User
-	_, err = common.WebAuthn.ValidateDiscoverableLogin(func(_, userHandle []byte) (webauthn.User, error) {
-		if err := common.DB.Preload("Credentials").First(&user, "id = ?", string(userHandle)).Error; err != nil {
-			return nil, err
-		}
-		return user, nil
-	}, session, credentialAssertionData)
-
-	if err != nil {
-		if strings.Contains(err.Error(), gorm.ErrRecordNotFound.Error()) {
-			utils.HandlerError(c, http.StatusBadRequest, "no user with this passkey exists")
-		} else {
-			utils.UnknownHandlerError(c, err)
-		}
-		return
-	}
-
-	err = common.DB.Find(&user, "id = ?", c.GetString("userID")).Error
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	token, err := common.GenerateAccessToken(*user)
-	if err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.SetCookie("access_token", token, int(time.Hour.Seconds()), "/", "", false, true)
-	c.JSON(http.StatusOK, user)
-}
-
-func listCredentialsHandler(c *gin.Context) {
-	var credentials []model.WebauthnCredential
-	if err := common.DB.Find(&credentials, "user_id = ?", c.GetString("userID")).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(http.StatusOK, credentials)
-}
-
-func deleteCredentialHandler(c *gin.Context) {
-	var passkeyCount int64
-	if err := common.DB.Model(&model.WebauthnCredential{}).Where("user_id = ?", c.GetString("userID")).Count(&passkeyCount).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	if passkeyCount == 1 {
-		utils.HandlerError(c, http.StatusBadRequest, "You must have at least one passkey")
-		return
-	}
-
-	var credential model.WebauthnCredential
-	if err := common.DB.First(&credential, "id = ? AND user_id = ?", c.Param("id"), c.GetString("userID")).Error; err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "Credential not found")
-		return
-	}
-
-	if err := common.DB.Delete(&credential).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func updateCredentialHandler(c *gin.Context) {
-	var credential model.WebauthnCredential
-	if err := common.DB.Where("id = ? AND user_id = ?", c.Param("id"), c.GetString("userID")).First(&credential).Error; err != nil {
-		utils.HandlerError(c, http.StatusNotFound, "Credential not found")
-		return
-	}
-
-	var input struct {
-		Name string `json:"name"`
-	}
-	if err := c.ShouldBindJSON(&input); err != nil {
-		utils.HandlerError(c, http.StatusBadRequest, "invalid request body")
-		return
-	}
-
-	credential.Name = input.Name
-
-	if err := common.DB.Save(&credential).Error; err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func logoutHandler(c *gin.Context) {
-	c.SetCookie("access_token", "", 0, "/", "", false, true)
-	c.Status(http.StatusNoContent)
-}

backend/internal/job/db_cleanup.go

@@ -3,28 +3,46 @@ package job
 import (
 	"github.com/go-co-op/gocron/v2"
 	"github.com/google/uuid"
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/model"
-	"golang-rest-api-template/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
-	"golang-rest-api-template/internal/utils"
+	"gorm.io/gorm"
 	"log"
 	"time"
 )
 
-func RegisterJobs() {
+func RegisterJobs(db *gorm.DB) {
 	scheduler, err := gocron.NewScheduler()
 	if err != nil {
 		log.Fatalf("Failed to create a new scheduler: %s", err)
 	}
 
-	registerJob(scheduler, "ClearWebauthnSessions", "0 3 * * *", clearWebauthnSessions)
+	jobs := &Jobs{db: db}
-	registerJob(scheduler, "ClearOneTimeAccessTokens", "0 3 * * *", clearOneTimeAccessTokens)
+
-	registerJob(scheduler, "ClearOidcAuthorizationCodes", "0 3 * * *", clearOidcAuthorizationCodes)
+	registerJob(scheduler, "ClearWebauthnSessions", "0 3 * * *", jobs.clearWebauthnSessions)
+	registerJob(scheduler, "ClearOneTimeAccessTokens", "0 3 * * *", jobs.clearOneTimeAccessTokens)
+	registerJob(scheduler, "ClearOidcAuthorizationCodes", "0 3 * * *", jobs.clearOidcAuthorizationCodes)
 
 	scheduler.Start()
 }
 
-func registerJob(scheduler gocron.Scheduler, name string, interval string, job func() error) {
+type Jobs struct {
+	db *gorm.DB
+}
 
+func (j *Jobs) clearWebauthnSessions() error {
+	return j.db.Delete(&model.WebauthnSession{}, "expires_at < ?", utils.FormatDateForDb(time.Now())).Error
+}
+
+func (j *Jobs) clearOneTimeAccessTokens() error {
+	return j.db.Debug().Delete(&model.OneTimeAccessToken{}, "expires_at < ?", utils.FormatDateForDb(time.Now())).Error
+}
+
+func (j *Jobs) clearOidcAuthorizationCodes() error {
+	return j.db.Delete(&model.OidcAuthorizationCode{}, "expires_at < ?", utils.FormatDateForDb(time.Now())).Error
+
+}
+
+func registerJob(scheduler gocron.Scheduler, name string, interval string, job func() error) {
 	_, err := scheduler.NewJob(
 		gocron.CronJob(interval, false),
 		gocron.NewTask(job),
@@ -42,16 +60,3 @@ func registerJob(scheduler gocron.Scheduler, name string, interval string, job f
 		log.Fatalf("Failed to register job %q: %v", name, err)
 	}
 }
-
-func clearWebauthnSessions() error {
-	return common.DB.Delete(&model.WebauthnSession{}, "expires_at < ?", utils.FormatDateForDb(time.Now())).Error
-}
-
-func clearOneTimeAccessTokens() error {
-	return common.DB.Debug().Delete(&model.OneTimeAccessToken{}, "expires_at < ?", utils.FormatDateForDb(time.Now())).Error
-}
-
-func clearOidcAuthorizationCodes() error {
-	return common.DB.Delete(&model.OidcAuthorizationCode{}, "expires_at < ?", utils.FormatDateForDb(time.Now())).Error
-
-}

backend/internal/middleware/cors.go

@@ -1,14 +1,20 @@
 package middleware
 
 import (
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/common"
 	"time"
 
 	"github.com/gin-contrib/cors"
 	"github.com/gin-gonic/gin"
 )
 
-func Cors() gin.HandlerFunc {
+type CorsMiddleware struct{}
+
+func NewCorsMiddleware() *CorsMiddleware {
+	return &CorsMiddleware{}
+}
+
+func (m *CorsMiddleware) Add() gin.HandlerFunc {
 	return cors.New(cors.Config{
 		AllowOrigins: []string{common.EnvConfig.AppURL},
 		AllowMethods: []string{"*"},

backend/internal/middleware/file_size_limit.go

@@ -3,11 +3,17 @@ package middleware
 import (
 	"fmt"
 	"github.com/gin-gonic/gin"
-	"golang-rest-api-template/internal/utils"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
 	"net/http"
 )
 
-func LimitFileSize(maxSize int64) gin.HandlerFunc {
+type FileSizeLimitMiddleware struct{}
+
+func NewFileSizeLimitMiddleware() *FileSizeLimitMiddleware {
+	return &FileSizeLimitMiddleware{}
+}
+
+func (m *FileSizeLimitMiddleware) Add(maxSize int64) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		c.Request.Body = http.MaxBytesReader(c.Writer, c.Request.Body, maxSize)
 		if err := c.Request.ParseMultipartForm(maxSize); err != nil {

backend/internal/middleware/jwt_auth.go

@@ -2,15 +2,22 @@ package middleware
 
 import (
 	"github.com/gin-gonic/gin"
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/service"
-	"golang-rest-api-template/internal/utils"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
 	"net/http"
 	"strings"
 )
 
-func JWTAuth(adminOnly bool) gin.HandlerFunc {
+type JwtAuthMiddleware struct {
-	return func(c *gin.Context) {
+	jwtService *service.JwtService
+}
 
+func NewJwtAuthMiddleware(jwtService *service.JwtService) *JwtAuthMiddleware {
+	return &JwtAuthMiddleware{jwtService: jwtService}
+}
+
+func (m *JwtAuthMiddleware) Add(adminOnly bool) gin.HandlerFunc {
+	return func(c *gin.Context) {
 		// Extract the token from the cookie or the Authorization header
 		token, err := c.Cookie("access_token")
 		if err != nil {
@@ -22,11 +29,9 @@ func JWTAuth(adminOnly bool) gin.HandlerFunc {
 				c.Abort()
 				return
 			}
-
 		}
 
-		// Verify the token
+		claims, err := m.jwtService.VerifyAccessToken(token)
-		claims, err := common.VerifyAccessToken(token)
 		if err != nil {
 			utils.HandlerError(c, http.StatusUnauthorized, "You're not signed in")
 			c.Abort()

backend/internal/middleware/rate_limit.go

@@ -1,8 +1,8 @@
 package middleware
 
 import (
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/common"
-	"golang-rest-api-template/internal/utils"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
 	"net/http"
 	"sync"
 	"time"
@@ -11,8 +11,13 @@ import (
 	"golang.org/x/time/rate"
 )
 
-// RateLimiter is a Gin middleware for rate limiting based on client IP
+type RateLimitMiddleware struct{}
-func RateLimiter(limit rate.Limit, burst int) gin.HandlerFunc {
+
+func NewRateLimitMiddleware() *RateLimitMiddleware {
+	return &RateLimitMiddleware{}
+}
+
+func (m *RateLimitMiddleware) Add(limit rate.Limit, burst int) gin.HandlerFunc {
 	// Start the cleanup routine
 	go cleanupClients()
 

backend/internal/model/app_config.go

@@ -0,0 +1,20 @@
+package model
+
+type AppConfigVariable struct {
+	Key        string `gorm:"primaryKey;not null" json:"key"`
+	Type       string `json:"type"`
+	IsPublic   bool   `json:"-"`
+	IsInternal bool   `json:"-"`
+	Value      string `json:"value"`
+}
+
+type AppConfig struct {
+	AppName             AppConfigVariable
+	BackgroundImageType AppConfigVariable
+	LogoImageType       AppConfigVariable
+	SessionDuration     AppConfigVariable
+}
+
+type AppConfigUpdateDto struct {
+	AppName string `json:"appName" binding:"required"`
+}

backend/internal/model/application_configuration.go

@@ -1,20 +0,0 @@
-package model
-
-type ApplicationConfigurationVariable struct {
-	Key        string `gorm:"primaryKey;not null" json:"key"`
-	Type       string `json:"type"`
-	IsPublic   bool   `json:"-"`
-	IsInternal bool   `json:"-"`
-	Value      string `json:"value"`
-}
-
-type ApplicationConfiguration struct {
-	AppName             ApplicationConfigurationVariable
-	BackgroundImageType ApplicationConfigurationVariable
-	LogoImageType       ApplicationConfigurationVariable
-	SessionDuration     ApplicationConfigurationVariable
-}
-
-type ApplicationConfigurationUpdateDto struct {
-	AppName string `json:"appName" binding:"required"`
-}

backend/internal/model/base.go

@@ -12,7 +12,7 @@ type Base struct {
 	CreatedAt time.Time `json:"createdAt"`
 }
 
-func (b *Base) BeforeCreate(db *gorm.DB) (err error) {
+func (b *Base) BeforeCreate(_ *gorm.DB) (err error) {
 	if b.ID == "" {
 		b.ID = uuid.New().String()
 	}

backend/internal/model/oidc.go

@@ -63,3 +63,9 @@ type OidcIdTokenDto struct {
 	ClientID     string `form:"client_id"`
 	ClientSecret string `form:"client_secret"`
 }
+
+type AuthorizeRequest struct {
+	ClientID string `json:"clientID" binding:"required"`
+	Scope    string `json:"scope" binding:"required"`
+	Nonce    string `json:"nonce"`
+}

backend/internal/model/webauthn.go

@@ -31,6 +31,18 @@ type WebauthnCredential struct {
 	UserID string
 }
 
+type PublicKeyCredentialCreationOptions struct {
+	Response  protocol.PublicKeyCredentialCreationOptions `json:"response"`
+	SessionID string                                      `json:"session_id"`
+	Timeout   time.Duration                               `json:"timeout"`
+}
+
+type PublicKeyCredentialRequestOptions struct {
+	Response  protocol.PublicKeyCredentialRequestOptions `json:"response"`
+	SessionID string                                     `json:"session_id"`
+	Timeout   time.Duration                              `json:"timeout"`
+}
+
 type AuthenticatorTransportList []protocol.AuthenticatorTransport
 
 // Scan and Value methods for GORM to handle the custom type
@@ -46,3 +58,7 @@ func (atl *AuthenticatorTransportList) Scan(value interface{}) error {
 func (atl AuthenticatorTransportList) Value() (driver.Value, error) {
 	return json.Marshal(atl)
 }
+
+type WebauthnCredentialUpdateDto struct {
+	Name string `json:"name"`
+}

backend/internal/service/app_config_service.go

@@ -0,0 +1,213 @@
+package service
+
+import (
+	"fmt"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"gorm.io/gorm"
+	"log"
+	"mime/multipart"
+	"os"
+	"reflect"
+)
+
+type AppConfigService struct {
+	DbConfig *model.AppConfig
+	db       *gorm.DB
+}
+
+func NewAppConfigService(db *gorm.DB) *AppConfigService {
+	service := &AppConfigService{
+		DbConfig: &defaultDbConfig,
+		db:       db,
+	}
+	if err := service.InitDbConfig(); err != nil {
+		log.Fatalf("Failed to initialize app config service: %v", err)
+	}
+	return service
+}
+
+var defaultDbConfig = model.AppConfig{
+	AppName: model.AppConfigVariable{
+		Key:      "appName",
+		Type:     "string",
+		IsPublic: true,
+		Value:    "Pocket ID",
+	},
+	SessionDuration: model.AppConfigVariable{
+		Key:   "sessionDuration",
+		Type:  "number",
+		Value: "60",
+	},
+	BackgroundImageType: model.AppConfigVariable{
+		Key:        "backgroundImageType",
+		Type:       "string",
+		IsInternal: true,
+		Value:      "jpg",
+	},
+	LogoImageType: model.AppConfigVariable{
+		Key:        "logoImageType",
+		Type:       "string",
+		IsInternal: true,
+		Value:      "svg",
+	},
+}
+
+func (s *AppConfigService) UpdateApplicationConfiguration(input model.AppConfigUpdateDto) ([]model.AppConfigVariable, error) {
+	savedConfigVariables := make([]model.AppConfigVariable, 10)
+
+	tx := s.db.Begin()
+	rt := reflect.ValueOf(input).Type()
+	rv := reflect.ValueOf(input)
+
+	for i := 0; i < rt.NumField(); i++ {
+		field := rt.Field(i)
+		key := field.Tag.Get("json")
+		value := rv.FieldByName(field.Name).String()
+
+		var applicationConfigurationVariable model.AppConfigVariable
+		if err := tx.First(&applicationConfigurationVariable, "key = ? AND is_internal = false", key).Error; err != nil {
+			tx.Rollback()
+			return nil, err
+		}
+
+		applicationConfigurationVariable.Value = value
+		if err := tx.Save(&applicationConfigurationVariable).Error; err != nil {
+			tx.Rollback()
+			return nil, err
+		}
+
+		savedConfigVariables[i] = applicationConfigurationVariable
+	}
+
+	tx.Commit()
+
+	if err := s.loadDbConfigFromDb(); err != nil {
+		return nil, err
+	}
+
+	return savedConfigVariables, nil
+}
+
+func (s *AppConfigService) UpdateImageType(imageName string, fileType string) error {
+	key := fmt.Sprintf("%sImageType", imageName)
+	err := s.db.Model(&model.AppConfigVariable{}).Where("key = ?", key).Update("value", fileType).Error
+	if err != nil {
+		return err
+	}
+
+	return s.loadDbConfigFromDb()
+}
+
+func (s *AppConfigService) ListApplicationConfiguration(showAll bool) ([]model.AppConfigVariable, error) {
+	var configuration []model.AppConfigVariable
+	var err error
+
+	if showAll {
+		err = s.db.Find(&configuration).Error
+	} else {
+		err = s.db.Find(&configuration, "is_public = true").Error
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	return configuration, nil
+}
+
+func (s *AppConfigService) UpdateImage(uploadedFile *multipart.FileHeader, imageName string, oldImageType string) error {
+	fileType := utils.GetFileExtension(uploadedFile.Filename)
+	mimeType := utils.GetImageMimeType(fileType)
+	if mimeType == "" {
+		return common.ErrFileTypeNotSupported
+	}
+
+	// Delete the old image if it has a different file type
+	if fileType != oldImageType {
+		oldImagePath := fmt.Sprintf("%s/application-images/%s.%s", common.EnvConfig.UploadPath, imageName, oldImageType)
+		if err := os.Remove(oldImagePath); err != nil {
+			return err
+		}
+	}
+
+	imagePath := fmt.Sprintf("%s/application-images/%s.%s", common.EnvConfig.UploadPath, imageName, fileType)
+	if err := utils.SaveFile(uploadedFile, imagePath); err != nil {
+		return err
+	}
+
+	// Update the file type in the database
+	if err := s.UpdateImageType(imageName, fileType); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// InitDbConfig creates the default configuration values in the database if they do not exist,
+// updates existing configurations if they differ from the default, and deletes any configurations
+// that are not in the default configuration.
+func (s *AppConfigService) InitDbConfig() error {
+	// Reflect to get the underlying value of DbConfig and its default configuration
+	defaultConfigReflectValue := reflect.ValueOf(defaultDbConfig)
+	defaultKeys := make(map[string]struct{})
+
+	// Iterate over the fields of DbConfig
+	for i := 0; i < defaultConfigReflectValue.NumField(); i++ {
+		defaultConfigVar := defaultConfigReflectValue.Field(i).Interface().(model.AppConfigVariable)
+
+		defaultKeys[defaultConfigVar.Key] = struct{}{}
+
+		var storedConfigVar model.AppConfigVariable
+		if err := s.db.First(&storedConfigVar, "key = ?", defaultConfigVar.Key).Error; err != nil {
+			// If the configuration does not exist, create it
+			if err := s.db.Create(&defaultConfigVar).Error; err != nil {
+				return err
+			}
+			continue
+		}
+
+		// Update existing configuration if it differs from the default
+		if storedConfigVar.Type != defaultConfigVar.Type || storedConfigVar.IsPublic != defaultConfigVar.IsPublic || storedConfigVar.IsInternal != defaultConfigVar.IsInternal {
+			storedConfigVar.Type = defaultConfigVar.Type
+			storedConfigVar.IsPublic = defaultConfigVar.IsPublic
+			storedConfigVar.IsInternal = defaultConfigVar.IsInternal
+			if err := s.db.Save(&storedConfigVar).Error; err != nil {
+				return err
+			}
+		}
+	}
+
+	// Delete any configurations not in the default keys
+	var allConfigVars []model.AppConfigVariable
+	if err := s.db.Find(&allConfigVars).Error; err != nil {
+		return err
+	}
+
+	for _, config := range allConfigVars {
+		if _, exists := defaultKeys[config.Key]; !exists {
+			if err := s.db.Delete(&config).Error; err != nil {
+				return err
+			}
+		}
+	}
+	return s.loadDbConfigFromDb()
+}
+
+func (s *AppConfigService) loadDbConfigFromDb() error {
+	dbConfigReflectValue := reflect.ValueOf(s.DbConfig).Elem()
+
+	for i := 0; i < dbConfigReflectValue.NumField(); i++ {
+		dbConfigField := dbConfigReflectValue.Field(i)
+		currentConfigVar := dbConfigField.Interface().(model.AppConfigVariable)
+		var storedConfigVar model.AppConfigVariable
+		if err := s.db.First(&storedConfigVar, "key = ?", currentConfigVar.Key).Error; err != nil {
+			return err
+		}
+
+		dbConfigField.Set(reflect.ValueOf(storedConfigVar))
+	}
+
+	return nil
+}

backend/internal/service/jwt_service.go

@@ -0,0 +1,248 @@
+package service
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"github.com/golang-jwt/jwt/v5"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"log"
+	"math/big"
+	"os"
+	"path/filepath"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const (
+	privateKeyPath = "data/keys/jwt_private_key.pem"
+	publicKeyPath  = "data/keys/jwt_public_key.pem"
+)
+
+type JwtService struct {
+	publicKey        *rsa.PublicKey
+	privateKey       *rsa.PrivateKey
+	appConfigService *AppConfigService
+}
+
+func NewJwtService(appConfigService *AppConfigService) *JwtService {
+	service := &JwtService{
+		appConfigService: appConfigService,
+	}
+
+	// Ensure keys are generated or loaded
+	if err := service.loadOrGenerateKeys(); err != nil {
+		log.Fatalf("Failed to initialize jwt service: %v", err)
+	}
+
+	return service
+}
+
+type AccessTokenJWTClaims struct {
+	jwt.RegisteredClaims
+	IsAdmin bool `json:"isAdmin,omitempty"`
+}
+
+type JWK struct {
+	Kty string `json:"kty"`
+	Use string `json:"use"`
+	Kid string `json:"kid"`
+	Alg string `json:"alg"`
+	N   string `json:"n"`
+	E   string `json:"e"`
+}
+
+// loadOrGenerateKeys loads RSA keys from the given paths or generates them if they do not exist.
+func (s *JwtService) loadOrGenerateKeys() error {
+	if _, err := os.Stat(privateKeyPath); os.IsNotExist(err) {
+		if err := s.generateKeys(); err != nil {
+			return err
+		}
+	}
+
+	privateKeyBytes, err := os.ReadFile(privateKeyPath)
+	if err != nil {
+		return errors.New("can't read jwt private key: " + err.Error())
+	}
+	s.privateKey, err = jwt.ParseRSAPrivateKeyFromPEM(privateKeyBytes)
+	if err != nil {
+		return errors.New("can't parse jwt private key: " + err.Error())
+	}
+
+	publicKeyBytes, err := os.ReadFile(publicKeyPath)
+	if err != nil {
+		return errors.New("can't read jwt public key: " + err.Error())
+	}
+	s.publicKey, err = jwt.ParseRSAPublicKeyFromPEM(publicKeyBytes)
+	if err != nil {
+		return errors.New("can't parse jwt public key: " + err.Error())
+	}
+
+	return nil
+}
+
+func (s *JwtService) GenerateIDToken(user model.User, clientID string, scope string, nonce string) (string, error) {
+	profileClaims := map[string]interface{}{
+		"given_name":         user.FirstName,
+		"family_name":        user.LastName,
+		"email":              user.Email,
+		"preferred_username": user.Username,
+	}
+
+	claims := jwt.MapClaims{
+		"sub": user.ID,
+		"aud": clientID,
+		"exp": jwt.NewNumericDate(time.Now().Add(1 * time.Hour)),
+		"iat": jwt.NewNumericDate(time.Now()),
+	}
+
+	if nonce != "" {
+		claims["nonce"] = nonce
+	}
+	if strings.Contains(scope, "profile") {
+		for k, v := range profileClaims {
+			claims[k] = v
+		}
+	}
+	if strings.Contains(scope, "email") {
+		claims["email"] = user.Email
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodRS256, claims)
+	return token.SignedString(s.privateKey)
+}
+
+func (s *JwtService) GenerateAccessToken(user model.User) (string, error) {
+	sessionDurationInMinutes, _ := strconv.Atoi(s.appConfigService.DbConfig.SessionDuration.Value)
+	claim := AccessTokenJWTClaims{
+		RegisteredClaims: jwt.RegisteredClaims{
+			Subject:   user.ID,
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(sessionDurationInMinutes) * time.Minute)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			Audience:  jwt.ClaimStrings{utils.GetHostFromURL(common.EnvConfig.AppURL)},
+		},
+		IsAdmin: user.IsAdmin,
+	}
+	token := jwt.NewWithClaims(jwt.SigningMethodRS256, claim)
+	return token.SignedString(s.privateKey)
+}
+
+func (s *JwtService) VerifyAccessToken(tokenString string) (*AccessTokenJWTClaims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &AccessTokenJWTClaims{}, func(token *jwt.Token) (interface{}, error) {
+		return s.publicKey, nil
+	})
+	if err != nil || !token.Valid {
+		return nil, errors.New("couldn't handle this token")
+	}
+
+	claims, isValid := token.Claims.(*AccessTokenJWTClaims)
+	if !isValid {
+		return nil, errors.New("can't parse claims")
+	}
+
+	if !slices.Contains(claims.Audience, utils.GetHostFromURL(common.EnvConfig.AppURL)) {
+		return nil, errors.New("audience doesn't match")
+	}
+	return claims, nil
+}
+
+// GetJWK returns the JSON Web Key (JWK) for the public key.
+func (s *JwtService) GetJWK() (JWK, error) {
+	if s.publicKey == nil {
+		return JWK{}, errors.New("public key is not initialized")
+	}
+
+	jwk := JWK{
+		Kty: "RSA",
+		Use: "sig",
+		Kid: "1",
+		Alg: "RS256",
+		N:   base64.RawURLEncoding.EncodeToString(s.publicKey.N.Bytes()),
+		E:   base64.RawURLEncoding.EncodeToString(big.NewInt(int64(s.publicKey.E)).Bytes()),
+	}
+
+	return jwk, nil
+}
+
+// generateKeys generates a new RSA key pair and saves them to the specified paths.
+func (s *JwtService) generateKeys() error {
+	if err := os.MkdirAll(filepath.Dir(privateKeyPath), 0700); err != nil {
+		return errors.New("failed to create directories for keys: " + err.Error())
+	}
+
+	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		return errors.New("failed to generate private key: " + err.Error())
+	}
+	s.privateKey = privateKey
+
+	if err := s.savePEMKey(privateKeyPath, x509.MarshalPKCS1PrivateKey(privateKey), "RSA PRIVATE KEY"); err != nil {
+		return err
+	}
+
+	publicKey := &privateKey.PublicKey
+	s.publicKey = publicKey
+
+	if err := s.savePEMKey(publicKeyPath, x509.MarshalPKCS1PublicKey(publicKey), "RSA PUBLIC KEY"); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// savePEMKey saves a PEM encoded key to a file.
+func (s *JwtService) savePEMKey(path string, keyBytes []byte, keyType string) error {
+	keyFile, err := os.Create(path)
+	if err != nil {
+		return errors.New("failed to create key file: " + err.Error())
+	}
+	defer keyFile.Close()
+
+	keyPEM := pem.EncodeToMemory(&pem.Block{
+		Type:  keyType,
+		Bytes: keyBytes,
+	})
+
+	if _, err := keyFile.Write(keyPEM); err != nil {
+		return errors.New("failed to write key file: " + err.Error())
+	}
+
+	return nil
+}
+
+// loadKeys loads RSA keys from the given paths.
+func (s *JwtService) loadKeys() error {
+	if _, err := os.Stat(privateKeyPath); os.IsNotExist(err) {
+		if err := s.generateKeys(); err != nil {
+			return err
+		}
+	}
+
+	privateKeyBytes, err := os.ReadFile(privateKeyPath)
+	if err != nil {
+		return fmt.Errorf("can't read jwt private key: %w", err)
+	}
+	s.privateKey, err = jwt.ParseRSAPrivateKeyFromPEM(privateKeyBytes)
+	if err != nil {
+		return fmt.Errorf("can't parse jwt private key: %w", err)
+	}
+
+	publicKeyBytes, err := os.ReadFile(publicKeyPath)
+	if err != nil {
+		return fmt.Errorf("can't read jwt public key: %w", err)
+	}
+	s.publicKey, err = jwt.ParseRSAPublicKeyFromPEM(publicKeyBytes)
+	if err != nil {
+		return fmt.Errorf("can't parse jwt public key: %w", err)
+	}
+
+	return nil
+}

backend/internal/service/oidc_service.go

@@ -0,0 +1,282 @@
+package service
+
+import (
+	"errors"
+	"fmt"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
+	"mime/multipart"
+	"os"
+	"time"
+)
+
+type OidcService struct {
+	db         *gorm.DB
+	jwtService *JwtService
+}
+
+func NewOidcService(db *gorm.DB, jwtService *JwtService) *OidcService {
+	return &OidcService{
+		db:         db,
+		jwtService: jwtService,
+	}
+}
+
+func (s *OidcService) Authorize(req model.AuthorizeRequest, userID string) (string, error) {
+	var userAuthorizedOIDCClient model.UserAuthorizedOidcClient
+	s.db.First(&userAuthorizedOIDCClient, "client_id = ? AND user_id = ?", req.ClientID, userID)
+
+	if userAuthorizedOIDCClient.Scope != req.Scope {
+		return "", common.ErrOidcMissingAuthorization
+	}
+
+	return s.createAuthorizationCode(req.ClientID, userID, req.Scope, req.Nonce)
+}
+
+func (s *OidcService) AuthorizeNewClient(req model.AuthorizeNewClientDto, userID string) (string, error) {
+	userAuthorizedClient := model.UserAuthorizedOidcClient{
+		UserID:   userID,
+		ClientID: req.ClientID,
+		Scope:    req.Scope,
+	}
+
+	if err := s.db.Create(&userAuthorizedClient).Error; err != nil {
+		if errors.Is(err, gorm.ErrDuplicatedKey) {
+			err = s.db.Model(&userAuthorizedClient).Update("scope", req.Scope).Error
+		} else {
+			return "", err
+		}
+	}
+
+	return s.createAuthorizationCode(req.ClientID, userID, req.Scope, req.Nonce)
+}
+
+func (s *OidcService) CreateIDToken(req model.OidcIdTokenDto) (string, error) {
+	if req.GrantType != "authorization_code" {
+		return "", common.ErrOidcGrantTypeNotSupported
+	}
+
+	clientID := req.ClientID
+	clientSecret := req.ClientSecret
+
+	if clientID == "" || clientSecret == "" {
+		return "", common.ErrOidcMissingClientCredentials
+	}
+
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return "", err
+	}
+
+	err := bcrypt.CompareHashAndPassword([]byte(client.Secret), []byte(clientSecret))
+	if err != nil {
+		return "", common.ErrOidcClientSecretInvalid
+	}
+
+	var authorizationCodeMetaData model.OidcAuthorizationCode
+	err = s.db.Preload("User").First(&authorizationCodeMetaData, "code = ?", req.Code).Error
+	if err != nil {
+		return "", common.ErrOidcInvalidAuthorizationCode
+	}
+
+	if authorizationCodeMetaData.ClientID != clientID && authorizationCodeMetaData.ExpiresAt.Before(time.Now()) {
+		return "", common.ErrOidcInvalidAuthorizationCode
+	}
+
+	idToken, err := s.jwtService.GenerateIDToken(authorizationCodeMetaData.User, clientID, authorizationCodeMetaData.Scope, authorizationCodeMetaData.Nonce)
+	if err != nil {
+		return "", err
+	}
+
+	s.db.Delete(&authorizationCodeMetaData)
+
+	return idToken, nil
+}
+
+func (s *OidcService) GetClient(clientID string) (*model.OidcClient, error) {
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return nil, err
+	}
+	return &client, nil
+}
+
+func (s *OidcService) ListClients(searchTerm string, page int, pageSize int) ([]model.OidcClient, utils.PaginationResponse, error) {
+	var clients []model.OidcClient
+
+	query := s.db.Model(&model.OidcClient{})
+	if searchTerm != "" {
+		searchPattern := "%" + searchTerm + "%"
+		query = query.Where("name LIKE ?", searchPattern)
+	}
+
+	pagination, err := utils.Paginate(page, pageSize, query, &clients)
+	if err != nil {
+		return nil, utils.PaginationResponse{}, err
+	}
+
+	return clients, pagination, nil
+}
+
+func (s *OidcService) CreateClient(input model.OidcClientCreateDto, userID string) (*model.OidcClient, error) {
+	client := model.OidcClient{
+		Name:        input.Name,
+		CallbackURL: input.CallbackURL,
+		CreatedByID: userID,
+	}
+
+	if err := s.db.Create(&client).Error; err != nil {
+		return nil, err
+	}
+
+	return &client, nil
+}
+
+func (s *OidcService) UpdateClient(clientID string, input model.OidcClientCreateDto) (*model.OidcClient, error) {
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return nil, err
+	}
+
+	client.Name = input.Name
+	client.CallbackURL = input.CallbackURL
+
+	if err := s.db.Save(&client).Error; err != nil {
+		return nil, err
+	}
+
+	return &client, nil
+}
+
+func (s *OidcService) DeleteClient(clientID string) error {
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return err
+	}
+
+	if err := s.db.Delete(&client).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *OidcService) CreateClientSecret(clientID string) (string, error) {
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return "", err
+	}
+
+	clientSecret, err := utils.GenerateRandomAlphanumericString(32)
+	if err != nil {
+		return "", err
+	}
+
+	hashedSecret, err := bcrypt.GenerateFromPassword([]byte(clientSecret), bcrypt.DefaultCost)
+	if err != nil {
+		return "", err
+	}
+
+	client.Secret = string(hashedSecret)
+	if err := s.db.Save(&client).Error; err != nil {
+		return "", err
+	}
+
+	return clientSecret, nil
+}
+
+func (s *OidcService) GetClientLogo(clientID string) (string, string, error) {
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return "", "", err
+	}
+
+	if client.ImageType == nil {
+		return "", "", errors.New("image not found")
+	}
+
+	imageType := *client.ImageType
+	imagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, client.ID, imageType)
+	mimeType := utils.GetImageMimeType(imageType)
+
+	return imagePath, mimeType, nil
+}
+
+func (s *OidcService) UpdateClientLogo(clientID string, file *multipart.FileHeader) error {
+	fileType := utils.GetFileExtension(file.Filename)
+	if mimeType := utils.GetImageMimeType(fileType); mimeType == "" {
+		return common.ErrFileTypeNotSupported
+	}
+
+	imagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, clientID, fileType)
+	if err := utils.SaveFile(file, imagePath); err != nil {
+		return err
+	}
+
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return err
+	}
+
+	if client.ImageType != nil && fileType != *client.ImageType {
+		oldImagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, client.ID, *client.ImageType)
+		if err := os.Remove(oldImagePath); err != nil {
+			return err
+		}
+	}
+
+	client.ImageType = &fileType
+	if err := s.db.Save(&client).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *OidcService) DeleteClientLogo(clientID string) error {
+	var client model.OidcClient
+	if err := s.db.First(&client, "id = ?", clientID).Error; err != nil {
+		return err
+	}
+
+	if client.ImageType == nil {
+		return errors.New("image not found")
+	}
+
+	imagePath := fmt.Sprintf("%s/oidc-client-images/%s.%s", common.EnvConfig.UploadPath, client.ID, *client.ImageType)
+	if err := os.Remove(imagePath); err != nil {
+		return err
+	}
+
+	client.ImageType = nil
+	if err := s.db.Save(&client).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *OidcService) createAuthorizationCode(clientID string, userID string, scope string, nonce string) (string, error) {
+	randomString, err := utils.GenerateRandomAlphanumericString(32)
+	if err != nil {
+		return "", err
+	}
+
+	oidcAuthorizationCode := model.OidcAuthorizationCode{
+		ExpiresAt: time.Now().Add(15 * time.Minute),
+		Code:      randomString,
+		ClientID:  clientID,
+		UserID:    userID,
+		Scope:     scope,
+		Nonce:     nonce,
+	}
+
+	if err := s.db.Create(&oidcAuthorizationCode).Error; err != nil {
+		return "", err
+	}
+
+	return randomString, nil
+}

backend/internal/service/test_service.go

@@ -1,48 +1,33 @@
-package handler
+package service
 
 import (
 	"crypto/ecdsa"
 	"crypto/x509"
 	"encoding/base64"
+	"fmt"
+	"github.com/fxamacker/cbor/v2"
 	"log"
 	"os"
 	"time"
 
-	"github.com/fxamacker/cbor/v2"
-	"github.com/gin-gonic/gin"
 	"github.com/go-webauthn/webauthn/protocol"
-	"golang-rest-api-template/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/common"
-	"golang-rest-api-template/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/model"
-	"golang-rest-api-template/internal/utils"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
 	"gorm.io/gorm"
 )
 
-func RegisterTestRoutes(group *gin.RouterGroup) {
+type TestService struct {
-	group.POST("/test/reset", resetAndSeedHandler)
+	db               *gorm.DB
+	appConfigService *AppConfigService
 }
 
-func resetAndSeedHandler(c *gin.Context) {
+func NewTestService(db *gorm.DB, appConfigService *AppConfigService) *TestService {
-	if err := resetDatabase(); err != nil {
+	return &TestService{db: db, appConfigService: appConfigService}
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	if err := resetApplicationImages(); err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	if err := seedDatabase(); err != nil {
-		utils.UnknownHandlerError(c, err)
-		return
-	}
-
-	c.JSON(200, gin.H{"message": "Database reset and seeded"})
 }
 
-// seedDatabase seeds the database with initial data and uses a transaction to ensure atomicity.
+func (s *TestService) SeedDatabase() error {
-func seedDatabase() error {
+	return s.db.Transaction(func(tx *gorm.DB) error {
-	return common.DB.Transaction(func(tx *gorm.DB) error {
 		users := []model.User{
 			{
 				Base: model.Base{
@@ -128,11 +113,16 @@ func seedDatabase() error {
 			return err
 		}
 
+		publicKey1, err := getCborPublicKey("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEwcOo5KV169KR67QEHrcYkeXE3CCxv2BgwnSq4VYTQxyLtdmKxegexa8JdwFKhKXa2BMI9xaN15BoL6wSCRFJhg==")
+		publicKey2, err := getCborPublicKey("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAESq/wR8QbBu3dKnpaw/v0mDxFFDwnJ/L5XHSg2tAmq5x1BpSMmIr3+DxCbybVvGRmWGh8kKhy7SMnK91M6rFHTA==")
+		if err != nil {
+			return err
+		}
 		webauthnCredentials := []model.WebauthnCredential{
 			{
 				Name:            "Passkey 1",
 				CredentialID:    "test-credential-1",
-				PublicKey:       getCborPublicKey("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEwcOo5KV169KR67QEHrcYkeXE3CCxv2BgwnSq4VYTQxyLtdmKxegexa8JdwFKhKXa2BMI9xaN15BoL6wSCRFJhg=="),
+				PublicKey:       publicKey1,
 				AttestationType: "none",
 				Transport:       model.AuthenticatorTransportList{protocol.Internal},
 				UserID:          users[0].ID,
@@ -140,7 +130,7 @@ func seedDatabase() error {
 			{
 				Name:            "Passkey 2",
 				CredentialID:    "test-credential-2",
-				PublicKey:       getCborPublicKey("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAESq/wR8QbBu3dKnpaw/v0mDxFFDwnJ/L5XHSg2tAmq5x1BpSMmIr3+DxCbybVvGRmWGh8kKhy7SMnK91M6rFHTA=="),
+				PublicKey:       publicKey2,
 				AttestationType: "none",
 				Transport:       model.AuthenticatorTransportList{protocol.Internal},
 				UserID:          users[0].ID,
@@ -165,9 +155,8 @@ func seedDatabase() error {
 	})
 }
 
-// resetDatabase resets the database by deleting all rows from each table.
+func (s *TestService) ResetDatabase() error {
-func resetDatabase() error {
+	err := s.db.Transaction(func(tx *gorm.DB) error {
-	err := common.DB.Transaction(func(tx *gorm.DB) error {
 		var tables []string
 		if err := tx.Raw("SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%' AND name != 'schema_migrations';").Scan(&tables).Error; err != nil {
 			return err
@@ -183,13 +172,11 @@ func resetDatabase() error {
 	if err != nil {
 		return err
 	}
-	common.InitDbConfig()
+	err = s.appConfigService.InitDbConfig()
-	return nil
+	return err
 }
 
-// resetApplicationImages resets the application images by removing existing images and replacing them with the default ones
+func (s *TestService) ResetApplicationImages() error {
-func resetApplicationImages() error {
-
 	if err := os.RemoveAll(common.EnvConfig.UploadPath); err != nil {
 		log.Printf("Error removing directory: %v", err)
 		return err
@@ -204,20 +191,19 @@ func resetApplicationImages() error {
 }
 
 // getCborPublicKey decodes a Base64 encoded public key and returns the CBOR encoded COSE key
-func getCborPublicKey(base64PublicKey string) []byte {
+func getCborPublicKey(base64PublicKey string) ([]byte, error) {
 	decodedKey, err := base64.StdEncoding.DecodeString(base64PublicKey)
 	if err != nil {
-		log.Fatalf("Failed to decode base64 key: %v", err)
+		return nil, fmt.Errorf("failed to decode base64 key: %w", err)
 	}
-
 	pubKey, err := x509.ParsePKIXPublicKey(decodedKey)
 	if err != nil {
-		log.Fatalf("Failed to parse public key: %v", err)
+		return nil, fmt.Errorf("failed to parse public key: %w", err)
 	}
 
 	ecdsaPubKey, ok := pubKey.(*ecdsa.PublicKey)
 	if !ok {
-		log.Fatalf("Not an ECDSA public key")
+		return nil, fmt.Errorf("not an ECDSA public key")
 	}
 
 	coseKey := map[int]interface{}{
@@ -230,8 +216,8 @@ func getCborPublicKey(base64PublicKey string) []byte {
 
 	cborPublicKey, err := cbor.Marshal(coseKey)
 	if err != nil {
-		log.Fatalf("Failed to encode CBOR: %v", err)
+		return nil, fmt.Errorf("failed to marshal COSE key: %w", err)
 	}
 
-	return cborPublicKey
+	return cborPublicKey, nil
 }

backend/internal/service/user_sevice.go

@@ -0,0 +1,165 @@
+package service
+
+import (
+	"errors"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"gorm.io/gorm"
+	"time"
+)
+
+type UserService struct {
+	db         *gorm.DB
+	jwtService *JwtService
+}
+
+func NewUserService(db *gorm.DB, jwtService *JwtService) *UserService {
+	return &UserService{db: db, jwtService: jwtService}
+}
+
+func (s *UserService) ListUsers(searchTerm string, page int, pageSize int) ([]model.User, utils.PaginationResponse, error) {
+	var users []model.User
+	query := s.db.Model(&model.User{})
+
+	if searchTerm != "" {
+		searchPattern := "%" + searchTerm + "%"
+		query = query.Where("email LIKE ? OR first_name LIKE ? OR username LIKE ?", searchPattern, searchPattern, searchPattern)
+	}
+
+	pagination, err := utils.Paginate(page, pageSize, query, &users)
+	return users, pagination, err
+}
+
+func (s *UserService) GetUser(userID string) (model.User, error) {
+	var user model.User
+	err := s.db.Where("id = ?", userID).First(&user).Error
+	return user, err
+}
+
+func (s *UserService) DeleteUser(userID string) error {
+	var user model.User
+	if err := s.db.Where("id = ?", userID).First(&user).Error; err != nil {
+		return err
+	}
+
+	return s.db.Delete(&user).Error
+}
+
+func (s *UserService) CreateUser(user *model.User) error {
+	if err := s.db.Create(user).Error; err != nil {
+		if errors.Is(err, gorm.ErrDuplicatedKey) {
+			return s.checkDuplicatedFields(*user)
+		}
+		return err
+	}
+	return nil
+}
+
+func (s *UserService) UpdateUser(userID string, updatedUser model.User, updateOwnUser bool) (model.User, error) {
+	var user model.User
+	if err := s.db.Where("id = ?", userID).First(&user).Error; err != nil {
+		return model.User{}, err
+	}
+	user.FirstName = updatedUser.FirstName
+	user.LastName = updatedUser.LastName
+	user.Email = updatedUser.Email
+	user.Username = updatedUser.Username
+	if !updateOwnUser {
+		user.IsAdmin = updatedUser.IsAdmin
+	}
+
+	if err := s.db.Save(&user).Error; err != nil {
+		if errors.Is(err, gorm.ErrDuplicatedKey) {
+			return user, s.checkDuplicatedFields(user)
+		}
+		return user, err
+	}
+
+	return user, nil
+}
+
+func (s *UserService) CreateOneTimeAccessToken(userID string, expiresAt time.Time) (string, error) {
+	randomString, err := utils.GenerateRandomAlphanumericString(16)
+	if err != nil {
+		return "", err
+	}
+
+	oneTimeAccessToken := model.OneTimeAccessToken{
+		UserID:    userID,
+		ExpiresAt: expiresAt,
+		Token:     randomString,
+	}
+
+	if err := s.db.Create(&oneTimeAccessToken).Error; err != nil {
+		return "", err
+	}
+
+	return oneTimeAccessToken.Token, nil
+}
+
+func (s *UserService) ExchangeOneTimeAccessToken(token string) (model.User, string, error) {
+	var oneTimeAccessToken model.OneTimeAccessToken
+	if err := s.db.Where("token = ? AND expires_at > ?", token, utils.FormatDateForDb(time.Now())).Preload("User").First(&oneTimeAccessToken).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return model.User{}, "", common.ErrTokenInvalidOrExpired
+		}
+		return model.User{}, "", err
+	}
+	accessToken, err := s.jwtService.GenerateAccessToken(oneTimeAccessToken.User)
+	if err != nil {
+		return model.User{}, "", err
+	}
+
+	if err := s.db.Delete(&oneTimeAccessToken).Error; err != nil {
+		return model.User{}, "", err
+	}
+
+	return oneTimeAccessToken.User, accessToken, nil
+}
+
+func (s *UserService) SetupInitialAdmin() (model.User, string, error) {
+	var userCount int64
+	if err := s.db.Model(&model.User{}).Count(&userCount).Error; err != nil {
+		return model.User{}, "", err
+	}
+	if userCount > 1 {
+		return model.User{}, "", common.ErrSetupAlreadyCompleted
+	}
+
+	user := model.User{
+		FirstName: "Admin",
+		LastName:  "Admin",
+		Username:  "admin",
+		Email:     "admin@admin.com",
+		IsAdmin:   true,
+	}
+
+	if err := s.db.Model(&model.User{}).Preload("Credentials").FirstOrCreate(&user).Error; err != nil {
+		return model.User{}, "", err
+	}
+
+	if len(user.Credentials) > 0 {
+		return model.User{}, "", common.ErrSetupAlreadyCompleted
+	}
+
+	token, err := s.jwtService.GenerateAccessToken(user)
+	if err != nil {
+		return model.User{}, "", err
+	}
+
+	return user, token, nil
+}
+
+func (s *UserService) checkDuplicatedFields(user model.User) error {
+	var existingUser model.User
+	if s.db.Where("id != ? AND email = ?", user.ID, user.Email).First(&existingUser).Error == nil {
+		return common.ErrEmailTaken
+	}
+
+	if s.db.Where("id != ? AND username = ?", user.ID, user.Username).First(&existingUser).Error == nil {
+		return common.ErrUsernameTaken
+	}
+
+	return nil
+}

backend/internal/service/webauthn_service.go

@@ -0,0 +1,196 @@
+package service
+
+import (
+	"github.com/go-webauthn/webauthn/protocol"
+	"github.com/go-webauthn/webauthn/webauthn"
+	"github.com/stonith404/pocket-id/backend/internal/common"
+	"github.com/stonith404/pocket-id/backend/internal/model"
+	"github.com/stonith404/pocket-id/backend/internal/utils"
+	"gorm.io/gorm"
+	"net/http"
+	"time"
+)
+
+type WebAuthnService struct {
+	db       *gorm.DB
+	webAuthn *webauthn.WebAuthn
+}
+
+func NewWebAuthnService(db *gorm.DB, appConfigService *AppConfigService) *WebAuthnService {
+	webauthnConfig := &webauthn.Config{
+		RPDisplayName: appConfigService.DbConfig.AppName.Value,
+		RPID:          utils.GetHostFromURL(common.EnvConfig.AppURL),
+		RPOrigins:     []string{common.EnvConfig.AppURL},
+		Timeouts: webauthn.TimeoutsConfig{
+			Login: webauthn.TimeoutConfig{
+				Enforce:    true,
+				Timeout:    time.Second * 60,
+				TimeoutUVD: time.Second * 60,
+			},
+			Registration: webauthn.TimeoutConfig{
+				Enforce:    true,
+				Timeout:    time.Second * 60,
+				TimeoutUVD: time.Second * 60,
+			},
+		},
+	}
+
+	wa, _ := webauthn.New(webauthnConfig)
+	return &WebAuthnService{db: db, webAuthn: wa}
+}
+
+func (s *WebAuthnService) BeginRegistration(userID string) (*model.PublicKeyCredentialCreationOptions, error) {
+	var user model.User
+	if err := s.db.Preload("Credentials").Find(&user, "id = ?", userID).Error; err != nil {
+		return nil, err
+	}
+
+	options, session, err := s.webAuthn.BeginRegistration(&user, webauthn.WithResidentKeyRequirement(protocol.ResidentKeyRequirementRequired), webauthn.WithExclusions(user.WebAuthnCredentialDescriptors()))
+	if err != nil {
+		return nil, err
+	}
+
+	sessionToStore := &model.WebauthnSession{
+		ExpiresAt:        session.Expires,
+		Challenge:        session.Challenge,
+		UserVerification: string(session.UserVerification),
+	}
+
+	if err := s.db.Create(&sessionToStore).Error; err != nil {
+		return nil, err
+	}
+
+	return &model.PublicKeyCredentialCreationOptions{
+		Response:  options.Response,
+		SessionID: sessionToStore.ID,
+		Timeout:   s.webAuthn.Config.Timeouts.Registration.Timeout,
+	}, nil
+}
+
+func (s *WebAuthnService) VerifyRegistration(sessionID, userID string, r *http.Request) (*model.WebauthnCredential, error) {
+	var storedSession model.WebauthnSession
+	if err := s.db.First(&storedSession, "id = ?", sessionID).Error; err != nil {
+		return nil, err
+	}
+
+	session := webauthn.SessionData{
+		Challenge: storedSession.Challenge,
+		Expires:   storedSession.ExpiresAt,
+		UserID:    []byte(userID),
+	}
+
+	var user model.User
+	if err := s.db.Find(&user, "id = ?", userID).Error; err != nil {
+		return nil, err
+	}
+
+	credential, err := s.webAuthn.FinishRegistration(&user, session, r)
+	if err != nil {
+		return nil, err
+	}
+
+	credentialToStore := model.WebauthnCredential{
+		Name:            "New Passkey",
+		CredentialID:    string(credential.ID),
+		AttestationType: credential.AttestationType,
+		PublicKey:       credential.PublicKey,
+		Transport:       credential.Transport,
+		UserID:          user.ID,
+		BackupEligible:  credential.Flags.BackupEligible,
+		BackupState:     credential.Flags.BackupState,
+	}
+	if err := s.db.Create(&credentialToStore).Error; err != nil {
+		return nil, err
+	}
+
+	return &credentialToStore, nil
+}
+
+func (s *WebAuthnService) BeginLogin() (*model.PublicKeyCredentialRequestOptions, error) {
+	options, session, err := s.webAuthn.BeginDiscoverableLogin()
+	if err != nil {
+		return nil, err
+	}
+
+	sessionToStore := &model.WebauthnSession{
+		ExpiresAt:        session.Expires,
+		Challenge:        session.Challenge,
+		UserVerification: string(session.UserVerification),
+	}
+
+	if err := s.db.Create(&sessionToStore).Error; err != nil {
+		return nil, err
+	}
+
+	return &model.PublicKeyCredentialRequestOptions{
+		Response:  options.Response,
+		SessionID: sessionToStore.ID,
+		Timeout:   s.webAuthn.Config.Timeouts.Registration.Timeout,
+	}, nil
+}
+
+func (s *WebAuthnService) VerifyLogin(sessionID, userID string, credentialAssertionData *protocol.ParsedCredentialAssertionData) (*model.User, error) {
+	var storedSession model.WebauthnSession
+	if err := s.db.First(&storedSession, "id = ?", sessionID).Error; err != nil {
+		return nil, err
+	}
+
+	session := webauthn.SessionData{
+		Challenge: storedSession.Challenge,
+		Expires:   storedSession.ExpiresAt,
+	}
+
+	var user *model.User
+	_, err := s.webAuthn.ValidateDiscoverableLogin(func(_, userHandle []byte) (webauthn.User, error) {
+		if err := s.db.Preload("Credentials").First(&user, "id = ?", string(userHandle)).Error; err != nil {
+			return nil, err
+		}
+		return user, nil
+	}, session, credentialAssertionData)
+
+	if err != nil {
+		return nil, common.ErrInvalidCredentials
+	}
+
+	if err := s.db.Find(&user, "id = ?", userID).Error; err != nil {
+		return nil, err
+	}
+
+	return user, nil
+}
+
+func (s *WebAuthnService) ListCredentials(userID string) ([]model.WebauthnCredential, error) {
+	var credentials []model.WebauthnCredential
+	if err := s.db.Find(&credentials, "user_id = ?", userID).Error; err != nil {
+		return nil, err
+	}
+	return credentials, nil
+}
+
+func (s *WebAuthnService) DeleteCredential(userID, credentialID string) error {
+	var credential model.WebauthnCredential
+	if err := s.db.First(&credential, "id = ? AND user_id = ?", credentialID, userID).Error; err != nil {
+		return err
+	}
+
+	if err := s.db.Delete(&credential).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *WebAuthnService) UpdateCredential(userID, credentialID, name string) error {
+	var credential model.WebauthnCredential
+	if err := s.db.Where("id = ? AND user_id = ?", credentialID, userID).First(&credential).Error; err != nil {
+		return err
+	}
+
+	credential.Name = name
+
+	if err := s.db.Save(&credential).Error; err != nil {
+		return err
+	}
+
+	return nil
+}

backend/internal/utils/file_util.go

@@ -2,6 +2,7 @@ package utils
 
 import (
 	"io"
+	"mime/multipart"
 	"os"
 	"path/filepath"
 	"strings"
@@ -71,3 +72,24 @@ func copyFile(srcFilePath, destFilePath string) error {
 
 	return nil
 }
+
+func SaveFile(file *multipart.FileHeader, dst string) error {
+	src, err := file.Open()
+	if err != nil {
+		return err
+	}
+	defer src.Close()
+
+	if err = os.MkdirAll(filepath.Dir(dst), 0o750); err != nil {
+		return err
+	}
+
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	_, err = io.Copy(out, src)
+	return err
+}

backend/internal/utils/handler_error_util.go

@@ -1,15 +1,23 @@
 package utils
 
 import (
+	"errors"
 	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
 	"log"
 	"net/http"
 	"strings"
 )
 
 func UnknownHandlerError(c *gin.Context, err error) {
-	log.Println(err)
+	if errors.Is(err, gorm.ErrRecordNotFound) {
-	c.JSON(http.StatusInternalServerError, gin.H{"error": "Something went wrong"})
+		HandlerError(c, http.StatusNotFound, "Record not found")
+		return
+	} else {
+		log.Println(err)
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Something went wrong"})
+	}
+
 }
 
 func HandlerError(c *gin.Context, statusCode int, message string) {

backend/internal/utils/paging_util.go

@@ -1,9 +1,7 @@
 package utils
 
 import (
-	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
-	"strconv"
 )
 
 type PaginationResponse struct {
@@ -12,10 +10,7 @@ type PaginationResponse struct {
 	CurrentPage int   `json:"currentPage"`
 }
 
-func Paginate(c *gin.Context, db *gorm.DB, result interface{}) (PaginationResponse, error) {
+func Paginate(page int, pageSize int, db *gorm.DB, result interface{}) (PaginationResponse, error) {
-	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
-	pageSize, _ := strconv.Atoi(c.DefaultQuery("limit", "10"))
-
 	if page < 1 {
 		page = 1
 	}

backend/migrations/20240817191051_rename_config_table.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE app_config_variables
+    RENAME TO application_configuration_variables;

backend/migrations/20240817191051_rename_config_table.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE application_configuration_variables
+    RENAME TO app_config_variables;

frontend/tests/account-settings.spec.ts

@@ -69,15 +69,3 @@ test('Delete passkey from account', async ({ page }) => {
 
 	await expect(page.getByRole('status')).toHaveText('Passkey deleted successfully');
 });
-
-test('Delete last passkey from account fails', async ({ page }) => {
-	await page.goto('/settings/account');
-
-	await page.getByLabel('Delete').first().click();
-	await page.getByText('Delete', { exact: true }).click();
-
-	await page.getByLabel('Delete').first().click();
-	await page.getByText('Delete', { exact: true }).click();
-
-	await expect(page.getByRole('status').first()).toHaveText('You must have at least one passkey');
-});

frontend/tests/user-settings.spec.ts

@@ -35,6 +35,21 @@ test('Create user fails with already taken email', async ({ page }) => {
 	await expect(page.getByRole('status')).toHaveText('Email is already taken');
 });
 
+test('Create user fails with already taken username', async ({ page }) => {
+	const user = users.steve;
+
+	await page.goto('/settings/admin/users');
+
+	await page.getByRole('button', { name: 'Add User' }).click();
+	await page.getByLabel('Firstname').fill(user.firstname);
+	await page.getByLabel('Lastname').fill(user.lastname);
+	await page.getByLabel('Email').fill(user.email);
+	await page.getByLabel('Username').fill(users.tim.username);
+	await page.getByRole('button', { name: 'Save' }).click();
+
+	await expect(page.getByRole('status')).toHaveText('Username is already taken');
+});
+
 test('Create one time access token', async ({ page }) => {
 	await page.goto('/settings/admin/users');