32348bebce
- Migration 082: api_keys table (user_id, name, prefix, hashed_key, scopes, last_used_at, expires_at) - APIKey model, APIKeyService (Create, List, Delete, ValidateAPIKey) - APIKeyHandler: GET/POST/DELETE /api/v1/developer/api-keys - AuthMiddleware: X-API-Key and Bearer vza_* accepted as alternative to JWT - CSRF: skip for API key auth (stateless) - Key format: vza_ prefix, SHA-256 hashed storage
685 lines
21 KiB
Go
685 lines
21 KiB
Go
package middleware
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import (
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"context"
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"net/http"
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"os"
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"strings"
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"time"
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"veza-backend-api/internal/response"
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"veza-backend-api/internal/services"
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"github.com/gin-gonic/gin"
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"github.com/google/uuid"
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"go.uber.org/zap"
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)
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// ÉTAPE 3.4: Interfaces pour permettre l'injection de dépendances et les tests avec mocks
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// SessionValidator définit l'interface pour valider les sessions
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type SessionValidator interface {
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ValidateSession(ctx context.Context, token string) (*services.Session, error)
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RefreshSession(ctx context.Context, token string, newExpiresIn time.Duration) error
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}
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// AuditRecorder définit l'interface pour enregistrer les actions d'audit
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type AuditRecorder interface {
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LogAction(ctx context.Context, req *services.AuditLogCreateRequest) error
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}
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// PermissionChecker définit l'interface pour vérifier les permissions
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type PermissionChecker interface {
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HasRole(ctx context.Context, userID uuid.UUID, roleName string) (bool, error)
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HasPermission(ctx context.Context, userID uuid.UUID, permissionName string) (bool, error)
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}
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// AuthMiddleware middleware d'authentification avec validation de session
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// ÉTAPE 3.4: Utilise des interfaces pour permettre l'injection de dépendances et les tests
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// v0.102: Supports X-API-Key for developer API keys (when apiKeyService is set)
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type AuthMiddleware struct {
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sessionService SessionValidator
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auditService AuditRecorder
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permissionService PermissionChecker
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jwtService *services.JWTService // T0204: Use JWTService for validation
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userService *services.UserService // T0204: Check TokenVersion
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apiKeyService *services.APIKeyService // v0.102: Optional, for X-API-Key auth
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logger *zap.Logger
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}
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// NewAuthMiddleware crée un nouveau middleware d'authentification
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// apiKeyService can be nil; when set, X-API-Key header is accepted as alternative to JWT
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func NewAuthMiddleware(
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sessionService SessionValidator,
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auditService AuditRecorder,
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permissionService PermissionChecker,
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jwtService *services.JWTService,
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userService *services.UserService,
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apiKeyService *services.APIKeyService,
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logger *zap.Logger,
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) *AuthMiddleware {
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return &AuthMiddleware{
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sessionService: sessionService,
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auditService: auditService,
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permissionService: permissionService,
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jwtService: jwtService,
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userService: userService,
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apiKeyService: apiKeyService,
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logger: logger,
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}
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}
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// isSessionCheckRequest returns true for GET /auth/me (or path ending with /auth/me).
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// Used to avoid WARN logs when the frontend probes session without a token (expected case).
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func isSessionCheckRequest(path string) bool {
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return strings.HasSuffix(path, "/auth/me") || path == "/auth/me"
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}
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// extractAPIKeyFromRequest extracts API key from X-API-Key or Authorization: Bearer (for developer keys)
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func extractAPIKeyFromRequest(c *gin.Context) string {
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if k := c.GetHeader("X-API-Key"); k != "" {
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return k
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}
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authHeader := c.GetHeader("Authorization")
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if authHeader != "" {
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parts := strings.SplitN(authHeader, " ", 2)
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if len(parts) == 2 && strings.EqualFold(parts[0], "Bearer") {
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return parts[1]
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}
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}
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return ""
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}
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// authenticate performs the core authentication logic
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// Returns userID and true if successful, otherwise handles error response and returns false
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func (am *AuthMiddleware) authenticate(c *gin.Context) (uuid.UUID, bool) {
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// SECURITY: Try cookie first (new method), fallback to Authorization header (backward compatibility)
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tokenString := ""
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if cookie, err := c.Cookie("access_token"); err == nil && cookie != "" {
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tokenString = cookie
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} else {
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// Fallback to Authorization header (backward compatibility)
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authHeader := c.GetHeader("Authorization")
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if authHeader != "" {
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tokenParts := strings.Split(authHeader, " ")
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if len(tokenParts) == 2 && tokenParts[0] == "Bearer" {
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tokenString = tokenParts[1]
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}
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}
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}
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if tokenString == "" {
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// v0.102: Try X-API-Key when no JWT (developer API keys)
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if am.apiKeyService != nil {
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if apiKey := extractAPIKeyFromRequest(c); apiKey != "" && strings.HasPrefix(apiKey, "vza_") {
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key, err := am.apiKeyService.ValidateAPIKey(c.Request.Context(), apiKey)
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if err == nil {
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c.Set("user_id", key.UserID)
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c.Set("api_key", key)
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return key.UserID, true
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}
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am.logger.Warn("Invalid API key", zap.String("ip", c.ClientIP()))
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response.Unauthorized(c, "Invalid API key")
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c.Abort()
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return uuid.Nil, false
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}
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}
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if isSessionCheckRequest(c.Request.URL.Path) {
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am.logger.Debug("Missing access token (cookie or Authorization header)",
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zap.String("path", c.Request.URL.Path),
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zap.String("ip", c.ClientIP()),
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)
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} else {
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am.logger.Warn("Missing access token (cookie or Authorization header)",
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zap.String("ip", c.ClientIP()),
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zap.String("user_agent", c.GetHeader("User-Agent")),
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)
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}
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response.Unauthorized(c, "Access token required")
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c.Abort()
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return uuid.Nil, false
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}
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// v0.102: If Bearer token looks like API key (vza_ prefix), try API key auth
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if am.apiKeyService != nil && strings.HasPrefix(tokenString, "vza_") {
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key, err := am.apiKeyService.ValidateAPIKey(c.Request.Context(), tokenString)
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if err == nil {
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c.Set("user_id", key.UserID)
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c.Set("api_key", key)
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return key.UserID, true
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}
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}
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// T0204: Validate token using JWTService (checks sig, exp, iss, aud, alg)
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claims, err := am.jwtService.ValidateToken(tokenString)
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if err != nil {
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am.logger.Warn("Invalid JWT token",
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zap.Error(err),
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zap.String("ip", c.ClientIP()),
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)
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response.Unauthorized(c, "Invalid token")
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c.Abort()
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return uuid.Nil, false
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}
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userID := claims.UserID
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// T0204: Check TokenVersion against DB to ensure immediate revocation
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user, err := am.userService.GetByID(userID)
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if err != nil {
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am.logger.Warn("User not found during auth",
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zap.Error(err),
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zap.String("user_id", userID.String()),
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)
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response.Unauthorized(c, "User not found")
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c.Abort()
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return uuid.Nil, false
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}
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if err := am.jwtService.VerifyTokenVersion(claims, user.TokenVersion); err != nil {
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am.logger.Warn("Token version mismatch (revoked)",
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zap.Error(err),
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zap.String("user_id", userID.String()),
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zap.Int("token_version", claims.TokenVersion),
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zap.Int("user_version", user.TokenVersion),
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)
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response.Unauthorized(c, "Token revoked")
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c.Abort()
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return uuid.Nil, false
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}
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session, err := am.sessionService.ValidateSession(c.Request.Context(), tokenString)
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if err != nil {
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// Check if context was cancelled/timed out
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if ctxErr := c.Request.Context().Err(); ctxErr != nil {
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am.logger.Warn("Context cancelled during session validation",
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zap.Error(ctxErr),
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zap.String("user_id", userID.String()),
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)
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c.Abort()
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return uuid.Nil, false
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}
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am.logger.Warn("Invalid session",
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zap.Error(err),
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zap.String("user_id", userID.String()),
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zap.String("ip", c.ClientIP()),
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)
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response.Unauthorized(c, "Session expired or invalid")
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c.Abort()
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return uuid.Nil, false
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}
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if session.UserID != userID {
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am.logger.Warn("Session user mismatch",
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zap.String("session_user_id", session.UserID.String()),
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zap.String("token_user_id", userID.String()),
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)
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response.Forbidden(c, "Session user mismatch")
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c.Abort()
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return uuid.Nil, false
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}
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c.Set("user_id", userID)
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c.Set("session_id", session.ID)
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c.Set("session_created_at", session.CreatedAt)
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c.Set("session_expires_at", session.ExpiresAt)
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// BE-SEC-008: Automatic session refresh if session is close to expiration
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// Refresh session if it expires within the next 25% of its lifetime
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sessionLifetime := session.ExpiresAt.Sub(session.CreatedAt)
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timeUntilExpiry := time.Until(session.ExpiresAt)
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refreshThreshold := sessionLifetime / 4 // Refresh when 25% of lifetime remains
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if timeUntilExpiry < refreshThreshold && timeUntilExpiry > 0 {
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// Calculate new expiration (extend by original lifetime)
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newExpiresIn := sessionLifetime
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if newExpiresIn == 0 {
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newExpiresIn = 30 * 24 * time.Hour // Default to 30 days
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}
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// Refresh the session asynchronously (non-blocking)
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go func() {
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := am.sessionService.RefreshSession(ctx, tokenString, newExpiresIn); err != nil {
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am.logger.Warn("Failed to auto-refresh session",
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zap.Error(err),
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zap.String("user_id", userID.String()),
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zap.String("session_id", session.ID.String()),
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)
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} else {
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am.logger.Debug("Session auto-refreshed",
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zap.String("user_id", userID.String()),
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zap.String("session_id", session.ID.String()),
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zap.Duration("new_expires_in", newExpiresIn),
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)
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}
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}()
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}
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// Log audit access
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err = am.auditService.LogAction(c.Request.Context(), &services.AuditLogCreateRequest{
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UserID: &userID,
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Action: "api_access",
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Resource: "endpoint",
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IPAddress: c.ClientIP(),
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UserAgent: c.GetHeader("User-Agent"),
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Metadata: map[string]interface{}{
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"endpoint": c.Request.URL.Path,
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"method": c.Request.Method,
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"session_id": session.ID.String(),
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},
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})
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if err != nil {
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am.logger.Error("Failed to log API access",
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zap.Error(err),
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zap.String("user_id", userID.String()),
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)
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}
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return userID, true
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}
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// RequireAuth middleware qui exige une authentification
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func (am *AuthMiddleware) RequireAuth() gin.HandlerFunc {
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return func(c *gin.Context) {
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if _, ok := am.authenticate(c); ok {
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c.Next()
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}
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}
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}
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// OptionalAuth middleware d'authentification optionnelle
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// MIGRATION UUID: Simplifié, utilise UUID directement
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func (am *AuthMiddleware) OptionalAuth() gin.HandlerFunc {
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return func(c *gin.Context) {
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// SECURITY: Try cookie first (new method), fallback to Authorization header (backward compatibility)
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tokenString := ""
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if cookie, err := c.Cookie("access_token"); err == nil && cookie != "" {
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tokenString = cookie
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} else {
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// Fallback to Authorization header (backward compatibility)
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authHeader := c.GetHeader("Authorization")
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if authHeader != "" {
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tokenParts := strings.Split(authHeader, " ")
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if len(tokenParts) == 2 && tokenParts[0] == "Bearer" {
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tokenString = tokenParts[1]
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}
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}
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}
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if tokenString == "" {
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c.Next()
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return
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}
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claims, err := am.jwtService.ValidateToken(tokenString)
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if err != nil {
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c.Next()
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return
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}
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userID := claims.UserID
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// T0204: Check TokenVersion (optional auth should also respect revocation)
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user, err := am.userService.GetByID(userID)
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if err != nil {
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c.Next()
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return
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}
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if err := am.jwtService.VerifyTokenVersion(claims, user.TokenVersion); err != nil {
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c.Next()
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return
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}
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session, err := am.sessionService.ValidateSession(c.Request.Context(), tokenString)
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if err != nil {
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// Check if context was cancelled/timed out
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if ctxErr := c.Request.Context().Err(); ctxErr != nil {
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c.Abort()
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return
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}
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c.Next()
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return
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}
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// Ajouter UUID directement au contexte
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c.Set("user_id", userID)
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c.Set("session_id", session.ID)
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c.Set("session_created_at", session.CreatedAt)
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c.Set("session_expires_at", session.ExpiresAt)
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// BE-SEC-008: Automatic session refresh if session is close to expiration
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// Refresh session if it expires within the next 25% of its lifetime
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sessionLifetime := session.ExpiresAt.Sub(session.CreatedAt)
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timeUntilExpiry := time.Until(session.ExpiresAt)
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refreshThreshold := sessionLifetime / 4 // Refresh when 25% of lifetime remains
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if timeUntilExpiry < refreshThreshold && timeUntilExpiry > 0 {
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// Calculate new expiration (extend by original lifetime)
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newExpiresIn := sessionLifetime
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if newExpiresIn == 0 {
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newExpiresIn = 30 * 24 * time.Hour // Default to 30 days
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}
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// Refresh the session asynchronously (non-blocking)
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go func() {
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := am.sessionService.RefreshSession(ctx, tokenString, newExpiresIn); err != nil {
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am.logger.Warn("Failed to auto-refresh session (optional auth)",
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zap.Error(err),
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zap.String("user_id", userID.String()),
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zap.String("session_id", session.ID.String()),
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)
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} else {
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am.logger.Debug("Session auto-refreshed (optional auth)",
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zap.String("user_id", userID.String()),
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zap.String("session_id", session.ID.String()),
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zap.Duration("new_expires_in", newExpiresIn),
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)
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}
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}()
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}
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c.Next()
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}
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}
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// RequireAdmin middleware qui exige des droits administrateur
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// GO-001, GO-005, GO-006: Implémentation RBAC réelle avec PermissionService
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// MIGRATION UUID: userID est toujours uuid.UUID, plus de conversion
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// Note: RequireAdmin() inclut la vérification d'authentification, pas besoin d'appeler RequireAuth() séparément
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func (am *AuthMiddleware) RequireAdmin() gin.HandlerFunc {
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return func(c *gin.Context) {
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userID, ok := am.authenticate(c)
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if !ok {
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return
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}
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// Vérification RBAC réelle
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hasRole, err := am.permissionService.HasRole(c.Request.Context(), userID, "admin")
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if err != nil {
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am.logger.Error("Failed to check admin role", zap.Error(err))
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response.InternalServerError(c, "Internal server error")
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c.Abort()
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return
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}
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if !hasRole {
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am.logger.Warn("Admin access denied",
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zap.String("user_id", userID.String()),
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zap.String("ip", c.ClientIP()),
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)
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response.Forbidden(c, "Insufficient permissions")
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c.Abort()
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return
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}
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am.logger.Info("Admin access granted",
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zap.String("user_id", userID.String()),
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zap.String("ip", c.ClientIP()),
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zap.String("endpoint", c.Request.URL.Path),
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)
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c.Next()
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}
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}
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// RequirePermission middleware qui exige une permission spécifique
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// GO-001, GO-005: Implémentation RBAC réelle avec PermissionService
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// MIGRATION UUID: userID est toujours uuid.UUID
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func (am *AuthMiddleware) RequirePermission(permission string) gin.HandlerFunc {
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return func(c *gin.Context) {
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userID, ok := am.authenticate(c)
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if !ok {
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return
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}
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// Vérification RBAC réelle
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hasPermission, err := am.permissionService.HasPermission(c.Request.Context(), userID, permission)
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if err != nil {
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am.logger.Error("Failed to check permission", zap.Error(err))
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response.InternalServerError(c, "Internal server error")
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c.Abort()
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return
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}
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if !hasPermission {
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am.logger.Warn("Permission denied",
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zap.String("user_id", userID.String()),
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zap.String("permission", permission),
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)
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response.Forbidden(c, "Insufficient permissions")
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c.Abort()
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return
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}
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am.logger.Info("Permission check passed",
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zap.String("user_id", userID.String()),
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zap.String("permission", permission),
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zap.String("ip", c.ClientIP()),
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zap.String("endpoint", c.Request.URL.Path),
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)
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c.Next()
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}
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}
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// RequireContentCreatorRole middleware qui exige un rôle de créateur de contenu
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// GO-012: Vérifie que l'utilisateur a un des rôles: creator, premium, admin
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// Selon ORIGIN_SECURITY_FRAMEWORK, seuls ces rôles peuvent créer du contenu
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// MVP: En développement, autoriser tous les utilisateurs authentifiés
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func (am *AuthMiddleware) RequireContentCreatorRole() gin.HandlerFunc {
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return func(c *gin.Context) {
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userID, ok := am.authenticate(c)
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if !ok {
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return
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}
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// Role bypass only when explicitly opted-in for dev/test.
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env := os.Getenv("ENVIRONMENT")
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if env == "" {
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env = os.Getenv("APP_ENV")
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}
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if os.Getenv("BYPASS_CONTENT_CREATOR_ROLE") == "true" && (env == "development" || env == "dev" || env == "test") {
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am.logger.Debug("Bypassing role check (BYPASS_CONTENT_CREATOR_ROLE=true)",
|
|
zap.String("user_id", userID.String()),
|
|
zap.String("environment", env),
|
|
)
|
|
c.Next()
|
|
return
|
|
}
|
|
|
|
// Vérifier si l'utilisateur a un des rôles autorisés: creator, premium, admin
|
|
allowedRoles := []string{"creator", "premium", "admin", "artist", "producer", "label"}
|
|
hasAllowedRole := false
|
|
var lastErr error
|
|
|
|
for _, role := range allowedRoles {
|
|
hasRole, err := am.permissionService.HasRole(c.Request.Context(), userID, role)
|
|
if err != nil {
|
|
lastErr = err
|
|
continue
|
|
}
|
|
if hasRole {
|
|
hasAllowedRole = true
|
|
break
|
|
}
|
|
}
|
|
|
|
if !hasAllowedRole {
|
|
am.logger.Warn("Content creation denied - insufficient role",
|
|
zap.String("user_id", userID.String()),
|
|
zap.String("ip", c.ClientIP()),
|
|
zap.String("endpoint", c.Request.URL.Path),
|
|
)
|
|
response.Forbidden(c, "Insufficient permissions. Content creation requires creator, premium, or admin role.")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
if lastErr != nil {
|
|
am.logger.Error("Error checking roles (but user has allowed role)", zap.Error(lastErr))
|
|
}
|
|
|
|
am.logger.Info("Content creation access granted",
|
|
zap.String("user_id", userID.String()),
|
|
zap.String("ip", c.ClientIP()),
|
|
zap.String("endpoint", c.Request.URL.Path),
|
|
)
|
|
|
|
c.Next()
|
|
}
|
|
}
|
|
|
|
// ResourceOwnerResolver est une fonction qui récupère l'ID du propriétaire d'une ressource
|
|
// depuis le contexte de la requête (paramètres de route, etc.)
|
|
// Retourne l'UUID du propriétaire et une erreur si la ressource n'existe pas
|
|
type ResourceOwnerResolver func(c *gin.Context) (uuid.UUID, error)
|
|
|
|
// RequireOwnershipOrAdmin middleware qui vérifie que l'utilisateur authentifié est le propriétaire
|
|
// de la ressource ou qu'il a le rôle admin
|
|
// MOD-P0-003: Middleware générique pour vérification ownership centralisée
|
|
func (am *AuthMiddleware) RequireOwnershipOrAdmin(resourceType string, resolver ResourceOwnerResolver) gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
// Authentifier l'utilisateur
|
|
userID, ok := am.authenticate(c)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
// Récupérer l'ID du propriétaire de la ressource via le resolver
|
|
resourceOwnerID, err := resolver(c)
|
|
if err != nil {
|
|
am.logger.Warn("Failed to resolve resource owner",
|
|
zap.Error(err),
|
|
zap.String("resource_type", resourceType),
|
|
zap.String("user_id", userID.String()),
|
|
)
|
|
response.NotFound(c, "Resource not found")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
// Si l'utilisateur est le propriétaire, autoriser
|
|
if userID == resourceOwnerID {
|
|
c.Next()
|
|
return
|
|
}
|
|
|
|
// Vérifier si l'utilisateur est admin
|
|
hasRole, err := am.permissionService.HasRole(c.Request.Context(), userID, "admin")
|
|
if err != nil {
|
|
am.logger.Error("Failed to check admin role for ownership",
|
|
zap.Error(err),
|
|
zap.String("resource_type", resourceType),
|
|
zap.String("user_id", userID.String()),
|
|
)
|
|
response.InternalServerError(c, "Internal server error")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
if hasRole {
|
|
am.logger.Info("Admin override for ownership check",
|
|
zap.String("resource_type", resourceType),
|
|
zap.String("user_id", userID.String()),
|
|
zap.String("resource_owner_id", resourceOwnerID.String()),
|
|
)
|
|
c.Next()
|
|
return
|
|
}
|
|
|
|
// L'utilisateur n'est ni le propriétaire ni admin → Forbidden
|
|
am.logger.Warn("Ownership check failed",
|
|
zap.String("resource_type", resourceType),
|
|
zap.String("user_id", userID.String()),
|
|
zap.String("resource_owner_id", resourceOwnerID.String()),
|
|
zap.String("ip", c.ClientIP()),
|
|
)
|
|
response.Forbidden(c, "You do not have permission to access this resource")
|
|
c.Abort()
|
|
}
|
|
}
|
|
|
|
// RefreshToken middleware pour rafraîchir les tokens
|
|
// MIGRATION UUID: Simplifié pour UUID
|
|
func (am *AuthMiddleware) RefreshToken() gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
authHeader := c.GetHeader("Authorization")
|
|
if authHeader == "" {
|
|
response.Unauthorized(c, "Authorization header required")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
tokenParts := strings.Split(authHeader, " ")
|
|
if len(tokenParts) != 2 || tokenParts[0] != "Bearer" {
|
|
response.Unauthorized(c, "Invalid Authorization header format")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
tokenString := tokenParts[1]
|
|
|
|
claims, err := am.jwtService.ValidateToken(tokenString)
|
|
if err != nil {
|
|
response.Unauthorized(c, "Invalid token")
|
|
c.Abort()
|
|
return
|
|
}
|
|
userID := claims.UserID
|
|
|
|
// T0204: Check TokenVersion
|
|
user, err := am.userService.GetByID(userID)
|
|
if err != nil {
|
|
response.Unauthorized(c, "User not found")
|
|
c.Abort()
|
|
return
|
|
}
|
|
if err := am.jwtService.VerifyTokenVersion(claims, user.TokenVersion); err != nil {
|
|
response.Unauthorized(c, "Token revoked")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
session, err := am.sessionService.ValidateSession(c.Request.Context(), tokenString)
|
|
if err != nil {
|
|
// Check if context was cancelled/timed out
|
|
if ctxErr := c.Request.Context().Err(); ctxErr != nil {
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
response.Unauthorized(c, "Session expired or invalid")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
newExpiresIn := 24 * time.Hour
|
|
err = am.sessionService.RefreshSession(c.Request.Context(), tokenString, newExpiresIn)
|
|
if err != nil {
|
|
am.logger.Error("Failed to refresh session",
|
|
zap.Error(err),
|
|
zap.String("user_id", userID.String()),
|
|
)
|
|
response.InternalServerError(c, "Failed to refresh session")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
// Log le rafraîchissement
|
|
am.logger.Info("Token refreshed",
|
|
zap.String("user_id", userID.String()),
|
|
zap.String("session_id", session.ID.String()),
|
|
)
|
|
|
|
c.JSON(http.StatusOK, gin.H{
|
|
"message": "Token refreshed successfully",
|
|
"expires_in": newExpiresIn.Seconds(),
|
|
})
|
|
}
|
|
}
|