Harden API security: input validation, safe auth extraction, new tests, and deploy config
Comprehensive security hardening from audit findings: - Add validation tags to all DTO request structs (max lengths, ranges, enums) - Replace unsafe type assertions with MustGetAuthUser helper across all handlers - Remove query-param token auth from admin middleware (prevents URL token leakage) - Add request validation calls in handlers that were missing c.Validate() - Remove goroutines in handlers (timezone update now synchronous) - Add sanitize middleware and path traversal protection (path_utils) - Stop resetting admin passwords on migration restart - Warn on well-known default SECRET_KEY - Add ~30 new test files covering security regressions, auth safety, repos, and services - Add deploy/ config, audit digests, and AUDIT_FINDINGS documentation Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -81,6 +81,11 @@ func (h *AuthHandler) Register(c echo.Context) error {
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// Send welcome email with confirmation code (async)
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if h.emailService != nil && confirmationCode != "" {
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go func() {
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defer func() {
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if r := recover(); r != nil {
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log.Error().Interface("panic", r).Str("email", req.Email).Msg("Panic in welcome email goroutine")
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}
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}()
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if err := h.emailService.SendWelcomeEmail(req.Email, req.FirstName, confirmationCode); err != nil {
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log.Error().Err(err).Str("email", req.Email).Msg("Failed to send welcome email")
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}
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@@ -176,6 +181,11 @@ func (h *AuthHandler) VerifyEmail(c echo.Context) error {
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// Send post-verification welcome email with tips (async)
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if h.emailService != nil {
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go func() {
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defer func() {
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if r := recover(); r != nil {
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log.Error().Interface("panic", r).Str("email", user.Email).Msg("Panic in post-verification email goroutine")
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}
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}()
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if err := h.emailService.SendPostVerificationEmail(user.Email, user.FirstName); err != nil {
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log.Error().Err(err).Str("email", user.Email).Msg("Failed to send post-verification email")
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}
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@@ -204,6 +214,11 @@ func (h *AuthHandler) ResendVerification(c echo.Context) error {
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// Send verification email (async)
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if h.emailService != nil {
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go func() {
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defer func() {
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if r := recover(); r != nil {
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log.Error().Interface("panic", r).Str("email", user.Email).Msg("Panic in verification email goroutine")
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}
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}()
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if err := h.emailService.SendVerificationEmail(user.Email, user.FirstName, code); err != nil {
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log.Error().Err(err).Str("email", user.Email).Msg("Failed to send verification email")
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}
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@@ -238,6 +253,11 @@ func (h *AuthHandler) ForgotPassword(c echo.Context) error {
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// Send password reset email (async) - only if user found
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if h.emailService != nil && code != "" && user != nil {
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go func() {
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defer func() {
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if r := recover(); r != nil {
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log.Error().Interface("panic", r).Str("email", user.Email).Msg("Panic in password reset email goroutine")
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}
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}()
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if err := h.emailService.SendPasswordResetEmail(user.Email, user.FirstName, code); err != nil {
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log.Error().Err(err).Str("email", user.Email).Msg("Failed to send password reset email")
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}
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@@ -326,6 +346,11 @@ func (h *AuthHandler) AppleSignIn(c echo.Context) error {
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// Send welcome email for new users (async)
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if response.IsNewUser && h.emailService != nil && response.User.Email != "" {
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go func() {
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defer func() {
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if r := recover(); r != nil {
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log.Error().Interface("panic", r).Str("email", response.User.Email).Msg("Panic in Apple welcome email goroutine")
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}
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}()
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if err := h.emailService.SendAppleWelcomeEmail(response.User.Email, response.User.FirstName); err != nil {
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log.Error().Err(err).Str("email", response.User.Email).Msg("Failed to send Apple welcome email")
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}
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@@ -368,6 +393,11 @@ func (h *AuthHandler) GoogleSignIn(c echo.Context) error {
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// Send welcome email for new users (async)
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if response.IsNewUser && h.emailService != nil && response.User.Email != "" {
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go func() {
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defer func() {
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if r := recover(); r != nil {
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log.Error().Interface("panic", r).Str("email", response.User.Email).Msg("Panic in Google welcome email goroutine")
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}
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}()
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if err := h.emailService.SendGoogleWelcomeEmail(response.User.Email, response.User.FirstName); err != nil {
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log.Error().Err(err).Str("email", response.User.Email).Msg("Failed to send Google welcome email")
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}
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