mirror of
https://github.com/j3ssie/osmedeus.git
synced 2026-08-25 00:52:28 +02:00
119 lines
2.9 KiB
Go
119 lines
2.9 KiB
Go
package middleware
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import (
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"strings"
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"time"
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"github.com/gofiber/fiber/v2"
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"github.com/golang-jwt/jwt/v5"
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"github.com/j3ssie/osmedeus/v5/internal/config"
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)
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// Claims represents JWT claims
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type Claims struct {
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Username string `json:"username"`
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jwt.RegisteredClaims
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}
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// JWTAuth creates JWT authentication middleware
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func JWTAuth(cfg *config.Config) fiber.Handler {
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return func(c *fiber.Ctx) error {
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// Get token from Authorization header
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authHeader := c.Get("Authorization")
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if authHeader == "" {
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return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
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"error": true,
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"message": "Missing authorization header",
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})
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}
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// Check Bearer prefix
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parts := strings.Split(authHeader, " ")
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if len(parts) != 2 || parts[0] != "Bearer" {
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return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
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"error": true,
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"message": "Invalid authorization header format",
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})
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}
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tokenString := parts[1]
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// Parse and validate token
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claims := &Claims{}
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token, err := jwt.ParseWithClaims(tokenString, claims, func(token *jwt.Token) (interface{}, error) {
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return []byte(cfg.Server.JWT.SecretSigningKey), nil
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})
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if err != nil || !token.Valid {
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return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
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"error": true,
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"message": "Invalid or expired token",
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})
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}
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// Store claims in context
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c.Locals("user", claims)
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return c.Next()
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}
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}
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// GenerateToken generates a JWT token
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func GenerateToken(username string, cfg *config.Config) (string, error) {
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expiration := time.Duration(cfg.Server.JWT.ExpirationMinutes) * time.Minute
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claims := &Claims{
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Username: username,
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RegisteredClaims: jwt.RegisteredClaims{
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ExpiresAt: jwt.NewNumericDate(time.Now().Add(expiration)),
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IssuedAt: jwt.NewNumericDate(time.Now()),
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},
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString([]byte(cfg.Server.JWT.SecretSigningKey))
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}
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// GetUser gets the current user from context
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func GetUser(c *fiber.Ctx) *Claims {
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claims, ok := c.Locals("user").(*Claims)
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if !ok {
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return nil
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}
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return claims
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}
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// APIKeyAuth creates API key authentication middleware
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func APIKeyAuth(cfg *config.Config) fiber.Handler {
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return func(c *fiber.Ctx) error {
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apiKey := c.Get("x-osm-api-key")
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if !isValidAPIKey(apiKey, cfg.Server.AuthAPIKey) {
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return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
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"error": true,
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"message": "Invalid or missing API key",
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})
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}
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return c.Next()
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}
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}
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// isValidAPIKey validates the provided API key against expected value
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func isValidAPIKey(provided, expected string) bool {
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// Reject empty or whitespace-only keys
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trimmed := strings.TrimSpace(provided)
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if trimmed == "" {
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return false
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}
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// Reject suspicious placeholder values
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lower := strings.ToLower(trimmed)
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if lower == "null" || lower == "undefined" || lower == "nil" {
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return false
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}
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// Compare with expected (case-sensitive, exact match)
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return provided == expected
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}
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