authelia/internal/server/handlers.go

308 lines
14 KiB
Go

package server
import (
"net"
"os"
"strconv"
"strings"
"time"
duoapi "github.com/duosecurity/duo_api_golang"
"github.com/fasthttp/router"
"github.com/valyala/fasthttp"
"github.com/valyala/fasthttp/expvarhandler"
"github.com/valyala/fasthttp/pprofhandler"
"github.com/authelia/authelia/v4/internal/configuration/schema"
"github.com/authelia/authelia/v4/internal/duo"
"github.com/authelia/authelia/v4/internal/handlers"
"github.com/authelia/authelia/v4/internal/logging"
"github.com/authelia/authelia/v4/internal/middlewares"
"github.com/authelia/authelia/v4/internal/oidc"
"github.com/authelia/authelia/v4/internal/utils"
)
// Replacement for the default error handler in fasthttp.
func handlerError() func(ctx *fasthttp.RequestCtx, err error) {
logger := logging.Logger()
headerXForwardedFor := []byte(fasthttp.HeaderXForwardedFor)
getRemoteIP := func(ctx *fasthttp.RequestCtx) string {
if hdr := ctx.Request.Header.PeekBytes(headerXForwardedFor); hdr != nil {
ips := strings.Split(string(hdr), ",")
if len(ips) > 0 {
return strings.Trim(ips[0], " ")
}
}
return ctx.RemoteIP().String()
}
return func(ctx *fasthttp.RequestCtx, err error) {
switch e := err.(type) {
case *fasthttp.ErrSmallBuffer:
logger.Tracef("Request was too large to handle from client %s. Response Code %d.", getRemoteIP(ctx), fasthttp.StatusRequestHeaderFieldsTooLarge)
ctx.Error("request header too large", fasthttp.StatusRequestHeaderFieldsTooLarge)
case *net.OpError:
if e.Timeout() {
logger.Tracef("Request timeout occurred while handling from client %s: %s. Response Code %d.", getRemoteIP(ctx), ctx.RequestURI(), fasthttp.StatusRequestTimeout)
ctx.Error("request timeout", fasthttp.StatusRequestTimeout)
} else {
logger.Tracef("An unknown error occurred while handling a request from client %s: %s. Response Code %d.", getRemoteIP(ctx), ctx.RequestURI(), fasthttp.StatusBadRequest)
ctx.Error("error when parsing request", fasthttp.StatusBadRequest)
}
default:
logger.Tracef("An unknown error occurred while handling a request from client %s: %s. Response Code %d.", getRemoteIP(ctx), ctx.RequestURI(), fasthttp.StatusBadRequest)
ctx.Error("error when parsing request", fasthttp.StatusBadRequest)
}
}
}
func handlerNotFound(next fasthttp.RequestHandler) fasthttp.RequestHandler {
return func(ctx *fasthttp.RequestCtx) {
path := strings.ToLower(string(ctx.Path()))
for i := 0; i < len(httpServerDirs); i++ {
if path == httpServerDirs[i].name || strings.HasPrefix(path, httpServerDirs[i].prefix) {
handlers.SetStatusCodeResponse(ctx, fasthttp.StatusNotFound)
return
}
}
next(ctx)
}
}
func handlerMethodNotAllowed(ctx *fasthttp.RequestCtx) {
handlers.SetStatusCodeResponse(ctx, fasthttp.StatusMethodNotAllowed)
}
func getHandler(config schema.Configuration, providers middlewares.Providers) fasthttp.RequestHandler {
rememberMe := strconv.FormatBool(config.Session.RememberMeDuration != schema.RememberMeDisabled)
resetPassword := strconv.FormatBool(!config.AuthenticationBackend.DisableResetPassword)
resetPasswordCustomURL := config.AuthenticationBackend.PasswordReset.CustomURL.String()
duoSelfEnrollment := f
if !config.DuoAPI.Disable {
duoSelfEnrollment = strconv.FormatBool(config.DuoAPI.EnableSelfEnrollment)
}
https := config.Server.TLS.Key != "" && config.Server.TLS.Certificate != ""
serveIndexHandler := ServeTemplatedFile(embeddedAssets, indexFile, config.Server.AssetPath, duoSelfEnrollment, rememberMe, resetPassword, resetPasswordCustomURL, config.Session.Name, config.Theme, https)
serveSwaggerHandler := ServeTemplatedFile(swaggerAssets, indexFile, config.Server.AssetPath, duoSelfEnrollment, rememberMe, resetPassword, resetPasswordCustomURL, config.Session.Name, config.Theme, https)
serveSwaggerAPIHandler := ServeTemplatedFile(swaggerAssets, apiFile, config.Server.AssetPath, duoSelfEnrollment, rememberMe, resetPassword, resetPasswordCustomURL, config.Session.Name, config.Theme, https)
handlerPublicHTML := newPublicHTMLEmbeddedHandler()
handlerLocales := newLocalesEmbeddedHandler()
middleware := middlewares.AutheliaMiddleware(config, providers)
policyCORSPublicGET := middlewares.NewCORSPolicyBuilder().
WithAllowedMethods("OPTIONS", "GET").
WithAllowedOrigins("*").
Build()
r := router.New()
// Static Assets.
r.GET("/", middleware(serveIndexHandler))
for _, f := range rootFiles {
r.GET("/"+f, handlerPublicHTML)
}
r.GET("/favicon.ico", middlewares.AssetOverride(config.Server.AssetPath, 0, handlerPublicHTML))
r.GET("/static/media/logo.png", middlewares.AssetOverride(config.Server.AssetPath, 2, handlerPublicHTML))
r.GET("/static/{filepath:*}", handlerPublicHTML)
// Locales.
r.GET("/locales/{language:[a-z]{1,3}}-{variant:[a-zA-Z0-9-]+}/{namespace:[a-z]+}.json", middlewares.AssetOverride(config.Server.AssetPath, 0, handlerLocales))
r.GET("/locales/{language:[a-z]{1,3}}/{namespace:[a-z]+}.json", middlewares.AssetOverride(config.Server.AssetPath, 0, handlerLocales))
// Swagger.
r.GET("/api/", middleware(serveSwaggerHandler))
r.OPTIONS("/api/", policyCORSPublicGET.HandleOPTIONS)
r.GET("/api/"+apiFile, policyCORSPublicGET.Middleware(middleware(serveSwaggerAPIHandler)))
r.OPTIONS("/api/"+apiFile, policyCORSPublicGET.HandleOPTIONS)
for _, file := range swaggerFiles {
r.GET("/api/"+file, handlerPublicHTML)
}
r.GET("/api/health", middleware(handlers.HealthGET))
r.GET("/api/state", middleware(handlers.StateGET))
r.GET("/api/configuration", middleware(middlewares.Require1FA(handlers.ConfigurationGET)))
r.GET("/api/configuration/password-policy", middleware(handlers.PasswordPolicyConfigurationGet))
r.GET("/api/verify", middleware(handlers.VerifyGET(config.AuthenticationBackend)))
r.HEAD("/api/verify", middleware(handlers.VerifyGET(config.AuthenticationBackend)))
r.POST("/api/checks/safe-redirection", middleware(handlers.CheckSafeRedirectionPOST))
delayFunc := middlewares.TimingAttackDelay(10, 250, 85, time.Second)
r.POST("/api/firstfactor", middleware(handlers.FirstFactorPOST(delayFunc)))
r.POST("/api/logout", middleware(handlers.LogoutPOST))
// Only register endpoints if forgot password is not disabled.
if !config.AuthenticationBackend.DisableResetPassword &&
config.AuthenticationBackend.PasswordReset.CustomURL.String() == "" {
// Password reset related endpoints.
r.POST("/api/reset-password/identity/start", middleware(handlers.ResetPasswordIdentityStart))
r.POST("/api/reset-password/identity/finish", middleware(handlers.ResetPasswordIdentityFinish))
r.POST("/api/reset-password", middleware(handlers.ResetPasswordPOST))
}
// Information about the user.
r.GET("/api/user/info", middleware(middlewares.Require1FA(handlers.UserInfoGET)))
r.POST("/api/user/info", middleware(middlewares.Require1FA(handlers.UserInfoPOST)))
r.POST("/api/user/info/2fa_method", middleware(middlewares.Require1FA(handlers.MethodPreferencePOST)))
if !config.TOTP.Disable {
// TOTP related endpoints.
r.GET("/api/user/info/totp", middleware(middlewares.Require1FA(handlers.UserTOTPInfoGET)))
r.POST("/api/secondfactor/totp/identity/start", middleware(middlewares.Require1FA(handlers.TOTPIdentityStart)))
r.POST("/api/secondfactor/totp/identity/finish", middleware(middlewares.Require1FA(handlers.TOTPIdentityFinish)))
r.POST("/api/secondfactor/totp", middleware(middlewares.Require1FA(handlers.TimeBasedOneTimePasswordPOST)))
}
if !config.Webauthn.Disable {
// Webauthn Endpoints.
r.POST("/api/secondfactor/webauthn/identity/start", middleware(middlewares.Require1FA(handlers.WebauthnIdentityStart)))
r.POST("/api/secondfactor/webauthn/identity/finish", middleware(middlewares.Require1FA(handlers.WebauthnIdentityFinish)))
r.POST("/api/secondfactor/webauthn/attestation", middleware(middlewares.Require1FA(handlers.WebauthnAttestationPOST)))
r.GET("/api/secondfactor/webauthn/assertion", middleware(middlewares.Require1FA(handlers.WebauthnAssertionGET)))
r.POST("/api/secondfactor/webauthn/assertion", middleware(middlewares.Require1FA(handlers.WebauthnAssertionPOST)))
}
// Configure DUO api endpoint only if configuration exists.
if !config.DuoAPI.Disable {
var duoAPI duo.API
if os.Getenv("ENVIRONMENT") == dev {
duoAPI = duo.NewDuoAPI(duoapi.NewDuoApi(
config.DuoAPI.IntegrationKey,
config.DuoAPI.SecretKey,
config.DuoAPI.Hostname, "", duoapi.SetInsecure()))
} else {
duoAPI = duo.NewDuoAPI(duoapi.NewDuoApi(
config.DuoAPI.IntegrationKey,
config.DuoAPI.SecretKey,
config.DuoAPI.Hostname, ""))
}
r.GET("/api/secondfactor/duo_devices", middleware(middlewares.Require1FA(handlers.DuoDevicesGET(duoAPI))))
r.POST("/api/secondfactor/duo", middleware(middlewares.Require1FA(handlers.DuoPOST(duoAPI))))
r.POST("/api/secondfactor/duo_device", middleware(middlewares.Require1FA(handlers.DuoDevicePOST)))
}
if config.Server.EnablePprof {
r.GET("/debug/pprof/{name?}", pprofhandler.PprofHandler)
}
if config.Server.EnableExpvars {
r.GET("/debug/vars", expvarhandler.ExpvarHandler)
}
if providers.OpenIDConnect.Fosite != nil {
r.GET("/api/oidc/consent", middleware(handlers.OpenIDConnectConsentGET))
r.POST("/api/oidc/consent", middleware(handlers.OpenIDConnectConsentPOST))
allowedOrigins := utils.StringSliceFromURLs(config.IdentityProviders.OIDC.CORS.AllowedOrigins)
r.OPTIONS(oidc.WellKnownOpenIDConfigurationPath, policyCORSPublicGET.HandleOPTIONS)
r.GET(oidc.WellKnownOpenIDConfigurationPath, policyCORSPublicGET.Middleware(middleware(handlers.OpenIDConnectConfigurationWellKnownGET)))
r.OPTIONS(oidc.WellKnownOAuthAuthorizationServerPath, policyCORSPublicGET.HandleOPTIONS)
r.GET(oidc.WellKnownOAuthAuthorizationServerPath, policyCORSPublicGET.Middleware(middleware(handlers.OAuthAuthorizationServerWellKnownGET)))
r.OPTIONS(oidc.JWKsPath, policyCORSPublicGET.HandleOPTIONS)
r.GET(oidc.JWKsPath, policyCORSPublicGET.Middleware(middleware(handlers.JSONWebKeySetGET)))
// TODO (james-d-elliott): Remove in GA. This is a legacy implementation of the above endpoint.
r.OPTIONS("/api/oidc/jwks", policyCORSPublicGET.HandleOPTIONS)
r.GET("/api/oidc/jwks", policyCORSPublicGET.Middleware(middleware(handlers.JSONWebKeySetGET)))
policyCORSAuthorization := middlewares.NewCORSPolicyBuilder().
WithAllowedMethods("OPTIONS", "GET").
WithAllowedOrigins(allowedOrigins...).
WithEnabled(utils.IsStringInSlice(oidc.AuthorizationEndpoint, config.IdentityProviders.OIDC.CORS.Endpoints)).
Build()
r.OPTIONS(oidc.AuthorizationPath, policyCORSAuthorization.HandleOnlyOPTIONS)
r.GET(oidc.AuthorizationPath, middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OpenIDConnectAuthorizationGET)))
// TODO (james-d-elliott): Remove in GA. This is a legacy endpoint.
r.OPTIONS("/api/oidc/authorize", policyCORSAuthorization.HandleOnlyOPTIONS)
r.GET("/api/oidc/authorize", middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OpenIDConnectAuthorizationGET)))
policyCORSToken := middlewares.NewCORSPolicyBuilder().
WithAllowCredentials(true).
WithAllowedMethods("OPTIONS", "POST").
WithAllowedOrigins(allowedOrigins...).
WithEnabled(utils.IsStringInSlice(oidc.TokenEndpoint, config.IdentityProviders.OIDC.CORS.Endpoints)).
Build()
r.OPTIONS(oidc.TokenPath, policyCORSToken.HandleOPTIONS)
r.POST(oidc.TokenPath, policyCORSToken.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OpenIDConnectTokenPOST))))
policyCORSUserinfo := middlewares.NewCORSPolicyBuilder().
WithAllowCredentials(true).
WithAllowedMethods("OPTIONS", "GET", "POST").
WithAllowedOrigins(allowedOrigins...).
WithEnabled(utils.IsStringInSlice(oidc.UserinfoEndpoint, config.IdentityProviders.OIDC.CORS.Endpoints)).
Build()
r.OPTIONS(oidc.UserinfoPath, policyCORSUserinfo.HandleOPTIONS)
r.GET(oidc.UserinfoPath, policyCORSUserinfo.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OpenIDConnectUserinfo))))
r.POST(oidc.UserinfoPath, policyCORSUserinfo.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OpenIDConnectUserinfo))))
policyCORSIntrospection := middlewares.NewCORSPolicyBuilder().
WithAllowCredentials(true).
WithAllowedMethods("OPTIONS", "POST").
WithAllowedOrigins(allowedOrigins...).
WithEnabled(utils.IsStringInSlice(oidc.IntrospectionEndpoint, config.IdentityProviders.OIDC.CORS.Endpoints)).
Build()
r.OPTIONS(oidc.IntrospectionPath, policyCORSIntrospection.HandleOPTIONS)
r.POST(oidc.IntrospectionPath, policyCORSIntrospection.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OAuthIntrospectionPOST))))
// TODO (james-d-elliott): Remove in GA. This is a legacy implementation of the above endpoint.
r.OPTIONS("/api/oidc/introspect", policyCORSIntrospection.HandleOPTIONS)
r.POST("/api/oidc/introspect", policyCORSIntrospection.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OAuthIntrospectionPOST))))
policyCORSRevocation := middlewares.NewCORSPolicyBuilder().
WithAllowCredentials(true).
WithAllowedMethods("OPTIONS", "POST").
WithAllowedOrigins(allowedOrigins...).
WithEnabled(utils.IsStringInSlice(oidc.RevocationEndpoint, config.IdentityProviders.OIDC.CORS.Endpoints)).
Build()
r.OPTIONS(oidc.RevocationPath, policyCORSRevocation.HandleOPTIONS)
r.POST(oidc.RevocationPath, policyCORSRevocation.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OAuthRevocationPOST))))
// TODO (james-d-elliott): Remove in GA. This is a legacy implementation of the above endpoint.
r.OPTIONS("/api/oidc/revoke", policyCORSRevocation.HandleOPTIONS)
r.POST("/api/oidc/revoke", policyCORSRevocation.Middleware(middleware(middlewares.NewHTTPToAutheliaHandlerAdaptor(handlers.OAuthRevocationPOST))))
}
r.NotFound = handlerNotFound(middleware(serveIndexHandler))
r.HandleMethodNotAllowed = true
r.MethodNotAllowed = handlerMethodNotAllowed
handler := middlewares.LogRequest(middlewares.SecurityHeaders(r.Handler))
if config.Server.Path != "" {
handler = middlewares.StripPath(config.Server.Path, handler)
}
return handler
}