Debug logging for session

This commit replaces logrus with slog from the Go standard library.

.golangci.yml

@@ -8,7 +8,7 @@ linters-settings:
       const:
         ORGANIZATION: CAcert Inc.
     template: |-
-      Copyright {{ YEAR-RANGE }} {{ ORGANIZATION }}
+      Copyright {{ ORGANIZATION }}
       SPDX-License-Identifier: Apache-2.0
 
       Licensed under the Apache License, Version 2.0 (the "License");
@@ -47,7 +47,7 @@ linters:
     - gofmt
     - goheader
     - goimports
-    - gomnd
+    - mnd
     - gosec
     - lll
     - makezero

changelog.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+### Changed
+- HTML for client logo image is only rendered if a client application has a logo URL
+- link to client information is only rendered if a client application has a client URL
+- use Consent and Deny buttons instead of a checkbox when asking for consent
+
 ## [0.3.0] - 2023-08-07
 ### Changed
 - use a session to transport data from the login to the consent screens

cmd/idp/main.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -24,6 +24,7 @@ import (
 	"encoding/base64"
 	"errors"
 	"fmt"
+	"log/slog"
 	"net/http"
 	"net/url"
 	"os"
@@ -36,7 +37,6 @@ import (
 	"github.com/knadh/koanf/parsers/toml"
 	"github.com/knadh/koanf/providers/confmap"
 	hydra "github.com/ory/hydra-client-go/v2"
-	log "github.com/sirupsen/logrus"
 
 	"code.cacert.org/cacert/oidc-idp/internal/handlers"
 	"code.cacert.org/cacert/oidc-idp/internal/services"
@@ -55,6 +55,8 @@ const (
 
 	sessionKeyLength     = 32
 	sessionAuthKeyLength = 64
+
+	minCSRFKeyLength = 32
 )
 
 var (
@@ -64,42 +66,61 @@ var (
 )
 
 func main() {
-	logger := log.New()
+	var (
+		logLevel   = new(slog.LevelVar)
+		logHandler slog.Handler
+		logger     *slog.Logger
+	)
+
+	logHandler = slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: logLevel})
+	logger = slog.New(logHandler)
+	slog.SetDefault(logger)
 
 	config, err := services.ConfigureApplication(logger, "IDP", services.DefaultConfig)
 	if err != nil {
-		logger.WithError(err).Fatal("error loading configuration")
+		logger.Error("error loading configuration", "err", err)
+		os.Exit(1)
 	}
 
-	if level := config.String("log.level"); level != "" {
-		logLevel, err := log.ParseLevel(level)
+	if level := config.Bytes("log.level"); level != nil {
+		err := logLevel.UnmarshalText(level)
 		if err != nil {
-			logger.WithError(err).Fatal("could not parse log level")
+			logger.Error("could not parse log level", "error", err)
+			os.Exit(1)
 		}
 
-		logger.SetLevel(logLevel)
+		slog.SetLogLoggerLevel(logLevel.Level())
 	}
 
 	if config.Bool("log.json") {
-		logger.SetFormatter(&log.JSONFormatter{})
+		logHandler = slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: logLevel})
+		logger = slog.New(logHandler)
+		slog.SetDefault(logger)
 	}
 
-	logger.WithFields(log.Fields{
-		"version": version, "commit": commit, "date": date,
-	}).Info("Starting CAcert OpenID Connect Identity Provider")
-	logger.Infoln("Server is starting")
+	logger.Info("Starting CAcert OpenID Connect Identity Provider",
+		"version", version, "commit", commit, "date", date,
+	)
+	logger.Info("Server is starting")
 	i18nService := services.InitI18n(logger, config.Strings("i18n.languages"))
 
 	if err = i18nService.AddMessages(); err != nil {
-		logger.WithError(err).Fatal("could not add messages for i18n")
+		logger.Error("could not add messages for i18n", "error", err)
+		os.Exit(1)
+	}
+
+	sessionAuthKey, sessionEncKey, csrfKey, err := configureSessionParameters(config)
+	if err != nil {
+		logger.Error("could not configure session parameters", "error", err)
+		os.Exit(1)
 	}
 
-	sessionAuthKey, sessionEncKey := configureSessionParameters(config)
 	services.InitSessionStore(sessionAuthKey, sessionEncKey)
 
 	clientTransport, err := configureAdminClient(config)
 	if err != nil {
-		logger.WithError(err).Fatal("could not configure Hydra admin client")
+		logger.Error("could not configure Hydra admin client", "error", err)
+		os.Exit(1)
 	}
 
 	tc := handlers.PopulateTemplateCache()
@@ -107,12 +128,12 @@ func main() {
 	needsAuth := handlers.NewAuthMiddleware(logger, tc, i18nService).NeedsAuth
 
 	indexHandler := handlers.NewIndex(logger, tc, i18nService)
-	manageConsentHandler := handlers.NewManageConsent(logger, tc, i18nService, clientTransport.OAuth2Api)
-	revokeConsentHandler := handlers.NewRevokeConsent(logger, tc, i18nService, clientTransport.OAuth2Api)
+	manageConsentHandler := handlers.NewManageConsent(logger, tc, i18nService, clientTransport.OAuth2API)
+	revokeConsentHandler := handlers.NewRevokeConsent(logger, tc, i18nService, clientTransport.OAuth2API)
 
-	loginHandler := handlers.NewLoginHandler(logger, tc, i18nService, clientTransport.OAuth2Api)
-	consentHandler := handlers.NewConsentHandler(logger, tc, i18nService, clientTransport.OAuth2Api)
-	logoutHandler := handlers.NewLogout(logger, clientTransport.OAuth2Api)
+	loginHandler := handlers.NewLoginHandler(logger, tc, i18nService, clientTransport.OAuth2API)
+	consentHandler := handlers.NewConsentHandler(logger, tc, i18nService, clientTransport.OAuth2API)
+	logoutHandler := handlers.NewLogout(logger, clientTransport.OAuth2API)
 
 	logoutSuccessHandler := handlers.NewLogoutSuccess(logger, tc, i18nService)
 	errorHandler := handlers.NewErrorHandler(logger, i18nService)
@@ -132,11 +153,6 @@ func main() {
 	router.Handle("/css/", staticFiles)
 	router.Handle("/js/", staticFiles)
 
-	csrfKey, err := base64.StdEncoding.DecodeString(config.MustString("security.csrf.key"))
-	if err != nil {
-		logger.WithError(err).Fatal("could not parse CSRF key bytes")
-	}
-
 	nextRequestID := func() string {
 		return fmt.Sprintf("%d", time.Now().UnixNano())
 	}
@@ -152,12 +168,17 @@ func main() {
 
 	errorMiddleware, err := handlers.ErrorHandling(logger, tc, i18nService)
 	if err != nil {
-		logger.WithError(err).Fatal("could not initialize request error handling")
+		logger.Error("could not initialize request error handling", "error", err)
+		os.Exit(1)
 	}
 
 	handlerChain := tracing(logging(hsts(errorMiddleware(csrfProtect(router)))))
 
-	startServer(logger, config, handlerChain)
+	err = startServer(logger, config, handlerChain)
+	if err != nil {
+		logger.Error("server start failed", "error", err)
+		os.Exit(1)
+	}
 }
 
 func configureAdminClient(config *koanf.Koanf) (*hydra.APIClient, error) {
@@ -197,7 +218,7 @@ func configureAdminClient(config *koanf.Koanf) (*hydra.APIClient, error) {
 	return c, nil
 }
 
-func startServer(logger *log.Logger, config *koanf.Koanf, handlerChain http.Handler) {
+func startServer(logger *slog.Logger, config *koanf.Koanf, handlerChain http.Handler) error {
 	clientCertificateCAFile := config.MustString("security.client.ca-file")
 	serverBindAddress := config.String("server.bind_address")
 	serverName := config.String("server.name")
@@ -207,7 +228,7 @@ func startServer(logger *log.Logger, config *koanf.Koanf, handlerChain http.Hand
 
 	pemBytes, err := os.ReadFile(clientCertificateCAFile)
 	if err != nil {
-		logger.WithError(err).Fatal("could not load client CA certificates")
+		return fmt.Errorf("could not load client CA certificates: %w", err)
 	}
 
 	clientCertPool.AppendCertsFromPEM(pemBytes)
@@ -233,7 +254,7 @@ func startServer(logger *log.Logger, config *koanf.Koanf, handlerChain http.Hand
 
 	go func() {
 		<-quit
-		logger.Infoln("Server is shutting down...")
+		logger.Info("Server is shutting down...")
 		atomic.StoreInt32(&handlers.Healthy, 0)
 
 		ctx, cancel := context.WithTimeout(context.Background(), ShutdownTimeout)
@@ -242,27 +263,30 @@ func startServer(logger *log.Logger, config *koanf.Koanf, handlerChain http.Hand
 		server.SetKeepAlivesEnabled(false)
 
 		if err := server.Shutdown(ctx); err != nil {
-			logger.WithError(err).Fatal("Could not gracefully shutdown the server")
+			logger.Error("could not shutdown server gracefully", "error", err)
 		}
 
 		close(done)
 	}()
 
-	logger.WithFields(log.Fields{
-		"address": server.Addr, "url": publicAddress(serverName, serverPort),
-	}).Info("Server is ready to handle requests")
+	logger.Info(
+		"Server is ready to handle requests",
+		"address", server.Addr, "url", publicAddress(serverName, serverPort),
+	)
 	atomic.StoreInt32(&handlers.Healthy, 1)
 
 	if err := server.ListenAndServeTLS(
 		config.String("server.certificate"), config.String("server.key"),
 	); err != nil && !errors.Is(err, http.ErrServerClosed) {
-		logger.WithError(err).WithField(
-			"server_addr", server.Addr,
-		).Fatal("Could not listen on configured server address")
+		logger.Error("could not listen on configured server address", "server_addr", server.Addr)
+
+		return fmt.Errorf("could not create listener: %w", err)
 	}
 
 	<-done
-	logger.Infoln("Server stopped")
+	logger.Info("Server stopped")
+
+	return nil
 }
 
 func publicAddress(serverName string, serverPort int) string {
@@ -273,42 +297,66 @@ func publicAddress(serverName string, serverPort int) string {
 	return fmt.Sprintf("https://%s/", serverName)
 }
 
-func configureSessionParameters(config *koanf.Koanf) ([]byte, []byte) {
+func configureSessionParameters(config *koanf.Koanf) ([]byte, []byte, []byte, error) { //nolint:cyclop
 	sessionAuthKey, err := base64.StdEncoding.DecodeString(config.String("session.auth-key"))
 	if err != nil {
-		log.WithError(err).Fatal("could not decode session auth key")
+		return nil, nil, nil, fmt.Errorf("could not decode session auth key: %w", err)
 	}
 
 	sessionEncKey, err := base64.StdEncoding.DecodeString(config.String("session.enc-key"))
 	if err != nil {
-		log.WithError(err).Fatal("could not decode session encryption key")
+		return nil, nil, nil, fmt.Errorf("could not decode session encryption key: %w", err)
+	}
+
+	csrfKey, err := base64.StdEncoding.DecodeString(config.String("security.csrf.key"))
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("could not decode CSRF key bytes: %w", err)
 	}
 
 	generated := false
 
 	if len(sessionAuthKey) != sessionAuthKeyLength {
-		sessionAuthKey = services.GenerateKey(sessionAuthKeyLength)
+		sessionAuthKey, err = services.GenerateKey(sessionAuthKeyLength)
+		if err != nil {
+			return nil, nil, nil, fmt.Errorf("could not generate session authentication key: %w", err)
+		}
+
 		generated = true
 	}
 
 	if len(sessionEncKey) != sessionKeyLength {
-		sessionEncKey = services.GenerateKey(sessionKeyLength)
+		sessionEncKey, err = services.GenerateKey(sessionKeyLength)
+		if err != nil {
+			return nil, nil, nil, fmt.Errorf("could not generate session encryption key: %w", err)
+		}
+
+		generated = true
+	}
+
+	if len(csrfKey) < minCSRFKeyLength {
+		csrfKey, err = services.GenerateKey(minCSRFKeyLength)
+		if err != nil {
+			return nil, nil, nil, fmt.Errorf("could not generate CSRF key: %w", err)
+		}
+
 		generated = true
 	}
 
 	if generated {
 		_ = config.Load(confmap.Provider(map[string]interface{}{
-			"session.auth-key": sessionAuthKey,
-			"session.enc-key":  sessionEncKey,
+			"session.auth-key":  base64.StdEncoding.EncodeToString(sessionAuthKey),
+			"session.enc-key":   base64.StdEncoding.EncodeToString(sessionEncKey),
+			"security.csrf.key": base64.StdEncoding.EncodeToString(csrfKey),
 		}, "."), nil)
 
 		tomlData, err := config.Marshal(toml.Parser())
 		if err != nil {
-			log.WithError(err).Fatal("could not encode session config")
+			return nil, nil, nil, fmt.Errorf("could not encode session config: %w", err)
 		}
 
-		log.Infof("put the following in your resource_app.toml:\n%s", string(tomlData))
+		slog.Info("generated configuration values, put the following into your idp.toml")
+		fmt.Printf("------\n%s------\n", string(tomlData)) //nolint:forbidigo
 	}
 
-	return sessionAuthKey, sessionEncKey
+	return sessionAuthKey, sessionEncKey, csrfKey, nil
 }

go.mod

@@ -1,31 +1,29 @@
 module code.cacert.org/cacert/oidc-idp
 
-go 1.19
+go 1.22
 
 require (
 	github.com/BurntSushi/toml v1.3.2
-	github.com/dustin/go-humanize v1.0.0
+	github.com/dustin/go-humanize v1.0.1
 	github.com/go-playground/form/v4 v4.2.1
-	github.com/gorilla/csrf v1.7.1
-	github.com/gorilla/sessions v1.2.1
+	github.com/gorilla/csrf v1.7.2
+	github.com/gorilla/sessions v1.2.2
 	github.com/knadh/koanf v1.5.0
-	github.com/lestrrat-go/jwx v1.2.26
-	github.com/nicksnyder/go-i18n/v2 v2.2.1
-	github.com/ory/hydra-client-go/v2 v2.1.1
-	github.com/sirupsen/logrus v1.9.3
+	github.com/lestrrat-go/jwx v1.2.29
+	github.com/nicksnyder/go-i18n/v2 v2.4.0
+	github.com/ory/hydra-client-go/v2 v2.2.0
 	github.com/spf13/pflag v1.0.5
-	github.com/yuin/goldmark v1.5.5
-	golang.org/x/text v0.11.0
+	github.com/yuin/goldmark v1.7.1
+	golang.org/x/text v0.15.0
 )
 
 require (
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
-	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/gorilla/securecookie v1.1.1 // indirect
+	github.com/gorilla/securecookie v1.1.2 // indirect
 	github.com/lestrrat-go/backoff/v2 v2.0.8 // indirect
-	github.com/lestrrat-go/blackmagic v1.0.1 // indirect
+	github.com/lestrrat-go/blackmagic v1.0.2 // indirect
 	github.com/lestrrat-go/httpcc v1.0.1 // indirect
 	github.com/lestrrat-go/iter v1.0.2 // indirect
 	github.com/lestrrat-go/option v1.0.1 // indirect
@@ -34,10 +32,7 @@ require (
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	golang.org/x/crypto v0.11.0 // indirect
-	golang.org/x/net v0.13.0 // indirect
-	golang.org/x/oauth2 v0.10.0 // indirect
-	golang.org/x/sys v0.10.0 // indirect
-	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/oauth2 v0.20.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
 )

go.sum

@@ -1,7 +1,6 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/toml v1.0.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
 github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@@ -39,10 +38,12 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/decred/dcrd/crypto/blake256 v1.0.1/go.mod h1:2OfgNZ5wDpcsFmHmCK5gZTPcCXqlm2ArzUIkw9czNJo=
-github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 h1:8UrgZ3GkP4i/CLijOJx79Yu+etlyjdBU4sfcs2WYQMs=
 github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0/go.mod h1:v57UDF4pDQJcEfFUCRop3lJL149eHGSe9Jvczhzjo/0=
-github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 h1:rpfIENRNNilwHwZeG5+P150SMrnNEcHYvcCuK6dPZSg=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0/go.mod h1:v57UDF4pDQJcEfFUCRop3lJL149eHGSe9Jvczhzjo/0=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
@@ -52,8 +53,8 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
-github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
-github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
+github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
@@ -89,8 +90,6 @@ github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
-github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
@@ -103,14 +102,17 @@ github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
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@@ -172,14 +174,14 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
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-github.com/lestrrat-go/blackmagic v1.0.1 h1:lS5Zts+5HIC/8og6cGHb0uCcNCa3OUt1ygh3Qz2Fe80=
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 github.com/lestrrat-go/httpcc v1.0.1 h1:ydWCStUeJLkpYyjLDHihupbn2tYmZ7m22BGkcvZZrIE=
 github.com/lestrrat-go/httpcc v1.0.1/go.mod h1:qiltp3Mt56+55GPVCbTdM9MlqhvzyuL6W/NMDA8vA5E=
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 github.com/lestrrat-go/iter v1.0.2/go.mod h1:Momfcq3AnRlRjI5b5O8/G5/BvpzrhoFTZcn06fEOPt4=
-github.com/lestrrat-go/jwx v1.2.26 h1:4iFo8FPRZGDYe1t19mQP0zTRqA7n8HnJ5lkIiDvJcB0=
-github.com/lestrrat-go/jwx v1.2.26/go.mod h1:MaiCdGbn3/cckbOFSCluJlJMmp9dmZm5hDuIkx8ftpQ=
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@@ -216,12 +218,12 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
-github.com/nicksnyder/go-i18n/v2 v2.2.1 h1:aOzRCdwsJuoExfZhoiXHy4bjruwCMdt5otbYojM/PaA=
-github.com/nicksnyder/go-i18n/v2 v2.2.1/go.mod h1:fF2++lPHlo+/kPaj3nB0uxtPwzlPm+BlgwGX7MkeGj0=
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 github.com/npillmayer/nestext v0.1.3/go.mod h1:h2lrijH8jpicr25dFY+oAJLyzlya6jhnuG+zWp9L0Uk=
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
-github.com/ory/hydra-client-go/v2 v2.1.1 h1:3JatU9uFbw5XhF3lgPCas1l1Kok2v5Mq1p26zZwGHNg=
-github.com/ory/hydra-client-go/v2 v2.1.1/go.mod h1:IiIwChp/9wRvPoyFQblqPvg78uVishCCrV9+/M7Pl34=
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 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
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 github.com/pelletier/go-toml v1.7.0/go.mod h1:vwGMzjaWMwyfHwgIBhI2YUM4fB6nL6lVAvS1LBMMhTE=
@@ -260,14 +262,13 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
-github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
-github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
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@@ -276,14 +277,15 @@ github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
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-github.com/yuin/goldmark v1.5.5 h1:IJznPe8wOzfIKETmMkd06F8nXkmlhaHqFRM9l1hAGsU=
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@@ -296,9 +298,10 @@ golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0=
-golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
-golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
+golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
+golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
@@ -317,7 +320,6 @@ golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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@@ -331,13 +333,12 @@ golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1/go.mod h1:9tjilg8BloeKEkVJvy
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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-golang.org/x/net v0.13.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
+golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
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-golang.org/x/oauth2 v0.10.0 h1:zHCpF2Khkwy4mMB4bv0U37YtJdTGW8jI0glAApi0Kh8=
-golang.org/x/oauth2 v0.10.0/go.mod h1:kTpgurOux7LqtuxjuyZa4Gj2gdezIt/jQtGnNFfypQI=
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 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -381,17 +382,19 @@ golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
-golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
+golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
+golang.org/x/term v0.18.0/go.mod h1:ILwASektA3OnRv7amZ1xhE/KTR+u50pbXfZ03+6Nx58=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -399,11 +402,11 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
-golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
+golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -424,8 +427,6 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
-google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
@@ -451,8 +452,6 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d/go.mod h1:cuepJuh7vyXfUyUwEgHQXw849cJrilpS5NeIjOWESAw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

internal/handlers/common.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -22,12 +22,12 @@ import (
 	"context"
 	"fmt"
 	"html/template"
+	"log/slog"
 	"net/http"
 
 	"github.com/dustin/go-humanize"
 	"github.com/gorilla/sessions"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
-	log "github.com/sirupsen/logrus"
 
 	"code.cacert.org/cacert/oidc-idp/ui"
 
@@ -46,7 +46,7 @@ func GetSession(r *http.Request) (*sessions.Session, error) {
 }
 
 type AuthMiddleware struct {
-	logger    *log.Logger
+	logger    *slog.Logger
 	trans     *services.I18NService
 	templates TemplateCache
 }
@@ -83,7 +83,7 @@ func GetAuthenticatedAddresses(r *http.Request) []string {
 	return nil
 }
 
-func NewAuthMiddleware(logger *log.Logger, tc TemplateCache, trans *services.I18NService) *AuthMiddleware {
+func NewAuthMiddleware(logger *slog.Logger, tc TemplateCache, trans *services.I18NService) *AuthMiddleware {
 	return &AuthMiddleware{logger: logger, trans: trans, templates: tc}
 }
 
@@ -104,13 +104,13 @@ const (
 type TemplateCache map[templateName]*template.Template
 
 func (c TemplateCache) render(
-	logger *log.Logger, w http.ResponseWriter, name templateName, params map[string]interface{},
+	logger *slog.Logger, w http.ResponseWriter, name templateName, params map[string]interface{},
 ) {
 	rendered := bytes.NewBuffer(make([]byte, 0))
 
 	err := c[name].Lookup("base").Execute(rendered, params)
 	if err != nil {
-		logger.WithError(err).Error("template rendering failed")
+		logger.Error("template rendering failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -166,7 +166,7 @@ func PopulateTemplateCache() TemplateCache {
 }
 
 func renderNoEmailsInClientCertificate(
-	logger *log.Logger,
+	logger *slog.Logger,
 	templates TemplateCache,
 	trans *services.I18NService,
 	w http.ResponseWriter,
@@ -179,7 +179,7 @@ func renderNoEmailsInClientCertificate(
 		"Explanation": msg("NoEmailsInClientCertificateExplanation", nil, localizer),
 	})
 	if err != nil {
-		logger.WithError(err).Error("template rendering failed")
+		logger.Error("template rendering failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return

internal/handlers/consent.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -22,6 +22,7 @@ import (
 	"errors"
 	"fmt"
 	"html/template"
+	"log/slog"
 	"net/http"
 	"net/url"
 	"strings"
@@ -33,23 +34,22 @@ import (
 	"github.com/lestrrat-go/jwx/jwt/openid"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	client "github.com/ory/hydra-client-go/v2"
-	log "github.com/sirupsen/logrus"
 
 	"code.cacert.org/cacert/oidc-idp/internal/models"
 	"code.cacert.org/cacert/oidc-idp/internal/services"
 )
 
 type ConsentHandler struct {
-	logger      *log.Logger
+	logger      *slog.Logger
 	trans       *services.I18NService
-	adminClient client.OAuth2Api
+	adminClient client.OAuth2API
 	templates   TemplateCache
 }
 
 type ConsentInformation struct {
 	GrantedScopes  []string `form:"scope"`
 	SelectedClaims []string `form:"claims"`
-	ConsentChecked bool     `form:"consent"`
+	ConsentAction  string   `form:"consent"`
 }
 
 type UserInfo struct {
@@ -108,7 +108,7 @@ func (i *UserInfo) GetFullName() string {
 func (h *ConsentHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	challenge := r.URL.Query().Get("consent_challenge")
 
-	h.logger.WithField("consent_challenge", challenge).Debug("received consent challenge")
+	h.logger.Debug("received consent challenge", "consent_challenge", challenge)
 
 	localizer := getLocalizer(h.trans, r)
 
@@ -121,7 +121,7 @@ func (h *ConsentHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	session, err := GetSession(r)
 	if err != nil {
-		h.logger.WithError(err).Error("could get session for request")
+		h.logger.Error("could get session for request", "error", err)
 
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
@@ -149,7 +149,7 @@ func (h *ConsentHandler) handleGet(
 	if consentData.GetSkip() {
 		consentRequest, err := h.handleExistingConsent(consentData, requestedClaims, session)
 		if err != nil {
-			h.logger.WithError(err).Error("could not handle existing consent")
+			h.logger.Error("could not handle existing consent", "error", err)
 
 			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
@@ -158,7 +158,7 @@ func (h *ConsentHandler) handleGet(
 
 		err = h.acceptConsent(w, r, challenge, consentRequest)
 		if err != nil {
-			h.logger.WithError(err).Error("could not accept consent")
+			h.logger.Error("could not accept consent", "error", err)
 
 			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 		}
@@ -182,23 +182,23 @@ func (h *ConsentHandler) handlePost(
 	// validate input
 	decoder := form.NewDecoder()
 	if err := decoder.Decode(&consentInfo, r.Form); err != nil {
-		h.logger.WithError(err).Error("could not decode consent form")
+		h.logger.Error("could not decode consent form", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
 	}
 
-	if consentInfo.ConsentChecked {
+	if consentInfo.ConsentAction == "consent" {
 		consentRequest, err := h.rememberNewConsent(consentData, consentInfo, requestedClaims, session)
 		if err != nil {
-			h.logger.WithError(err).Error("could not accept consent")
+			h.logger.Error("could not accept consent", "error", err)
 
 			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 		}
 
 		err = h.acceptConsent(w, r, challenge, consentRequest)
 		if err != nil {
-			h.logger.WithError(err).Error("could not accept consent")
+			h.logger.Error("could not accept consent", "error", err)
 
 			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 		}
@@ -210,7 +210,7 @@ func (h *ConsentHandler) handlePost(
 		r.Context(),
 	).ConsentChallenge(challenge).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("reject consent request failed")
+		h.logger.Error("reject consent request failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -218,9 +218,10 @@ func (h *ConsentHandler) handlePost(
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "reject_consent_request": consentRequest},
-	).Debug("received response for RejectOAuth2ConsentRequest")
+	h.logger.Debug(
+		"received response for RejectOAuth2ConsentRequest",
+		"response", response.Status, "reject_consent_request", consentRequest,
+	)
 
 	w.Header().Add("Location", consentRequest.GetRedirectTo())
 	w.WriteHeader(http.StatusFound)
@@ -266,9 +267,10 @@ func (h *ConsentHandler) acceptConsent(
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "redirect_to": oAuth2RedirectTo},
-	).Debug("received response for AcceptOAuth2ConsentRequest")
+	h.logger.Debug(
+		"received response for AcceptOAuth2ConsentRequest",
+		"response", response.Status, "redirect_to", oAuth2RedirectTo,
+	)
 
 	w.Header().Add("Location", oAuth2RedirectTo.GetRedirectTo())
 	w.WriteHeader(http.StatusFound)
@@ -305,7 +307,7 @@ func (h *ConsentHandler) getRequestedConsentInformation(challenge string, r *htt
 		r.Context(),
 	).ConsentChallenge(challenge).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("error getting consent information")
+		h.logger.Error("error getting consent information", "error", err)
 
 		if errorBucket := GetErrorBucket(r); errorBucket != nil {
 			errorDetails := &ErrorDetails{
@@ -321,9 +323,10 @@ func (h *ConsentHandler) getRequestedConsentInformation(challenge string, r *htt
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "consent_request": consentRequest},
-	).Debug("response for GetOAuth2ConsentRequest")
+	h.logger.Debug(
+		"response for GetOAuth2ConsentRequest",
+		"response", response.Status, "consent_request", consentRequest,
+	)
 
 	var requestedClaims models.OIDCClaimsRequest
 
@@ -331,18 +334,21 @@ func (h *ConsentHandler) getRequestedConsentInformation(challenge string, r *htt
 
 	requestURL, err := url.Parse(requestURLStr)
 	if err != nil {
-		h.logger.WithError(err).WithField(
-			"request_url", requestURLStr,
-		).Warn("could not parse original request URL")
+		h.logger.Warn(
+			"could not parse original request URL",
+			"error", err, "request_url", requestURLStr,
+		)
 	} else {
 		claimsParameter := requestURL.Query().Get("claims")
 		if claimsParameter != "" {
 			decoder := json.NewDecoder(strings.NewReader(claimsParameter))
+
 			err := decoder.Decode(&requestedClaims)
 			if err != nil {
-				h.logger.WithError(err).WithField(
-					"claims_parameter", claimsParameter,
-				).Warn("ignoring claims request parameter that could not be decoded")
+				h.logger.Warn(
+					"ignoring claims request parameter that could not be decoded",
+					"error", err, "claims_parameter", claimsParameter,
+				)
 			}
 		}
 	}
@@ -357,36 +363,42 @@ func (h *ConsentHandler) renderConsentForm(
 	claims *models.OIDCClaimsRequest,
 	localizer *i18n.Localizer,
 ) {
-	trans := func(id string, values ...map[string]interface{}) string {
-		if len(values) > 0 {
-			return h.trans.LookupMessage(id, values[0], localizer)
-		}
-
-		return h.trans.LookupMessage(id, nil, localizer)
+	trans := h.trans.LookupMessage
+	transMarkdown := func(id string, params map[string]interface{}, localizer *i18n.Localizer) template.HTML {
+		return template.HTML( //nolint:gosec
+			h.trans.LookupMarkdownMessage(id, params, localizer),
+		)
 	}
 
 	// render consent form
 	oAuth2Client := consentRequest.Client
+	clientLogoURI := oAuth2Client.GetLogoUri()
+	clientName := template.HTMLEscaper(oAuth2Client.GetClientName())
+	clientURI := oAuth2Client.GetClientUri()
+
 	h.templates.render(h.logger, w, Consent, map[string]interface{}{
-		"Title":           trans("TitleRequestConsent"),
-		csrf.TemplateTag:  csrf.TemplateField(r),
-		"errors":          map[string]string{},
-		"client":          oAuth2Client,
-		"requestedScope":  h.mapRequestedScope(consentRequest.RequestedScope, localizer),
-		"requestedClaims": h.mapRequestedClaims(claims, localizer),
-		"LabelSubmit":     trans("LabelSubmit"),
-		"LabelConsent":    trans("LabelConsent"),
-		"IntroMoreInformation": template.HTML( //nolint:gosec
-			trans("IntroConsentMoreInformation", map[string]interface{}{
-				"client":     oAuth2Client.GetClientName(),
-				"clientLink": oAuth2Client.GetClientUri(),
-			})),
-		"ClaimsInformation": template.HTML( //nolint:gosec
-			trans("ClaimsInformation", nil)),
-		"IntroConsentRequested": template.HTML( //nolint:gosec
-			trans("IntroConsentRequested", map[string]interface{}{
-				"client": oAuth2Client.GetClientName(),
-			})),
+		"Title":              trans("TitleRequestConsent", nil, localizer),
+		csrf.TemplateTag:     csrf.TemplateField(r),
+		"errors":             map[string]string{},
+		"LogoURI":            clientLogoURI,
+		"ClientName":         clientName,
+		"requestedScope":     h.mapRequestedScope(consentRequest.RequestedScope, localizer),
+		"requestedClaims":    h.mapRequestedClaims(claims, localizer),
+		"ButtonTitleConsent": trans("ButtonTitleConsent", nil, localizer),
+		"ButtonTitleDeny":    trans("ButtonTitleDeny", nil, localizer),
+		"HasMoreInformation": clientURI != "",
+		"IntroMoreInformation": transMarkdown(
+			"IntroConsentMoreInformation", map[string]interface{}{
+				"client":     clientName,
+				"clientLink": clientURI,
+			}, localizer),
+		"LabelConsent": transMarkdown("LabelConsent", nil, localizer),
+		"ClaimsInformation": transMarkdown(
+			"ClaimsInformation", nil, localizer),
+		"IntroConsentRequested": transMarkdown(
+			"IntroConsentRequested", map[string]interface{}{
+				"client": clientName,
+			}, localizer),
 	})
 }
 
@@ -403,7 +415,7 @@ func (h *ConsentHandler) mapRequestedScope(
 
 	for _, scopeName := range scope {
 		if _, ok := supportedScopes[scopeName]; !ok {
-			h.logger.WithField("scope", scopeName).Warn("ignoring unsupported scope")
+			h.logger.Warn("ignoring unsupported scope", "scope", scopeName)
 
 			continue
 		}
@@ -412,7 +424,7 @@ func (h *ConsentHandler) mapRequestedScope(
 			DefaultMessage: supportedScopes[scopeName],
 		})
 		if err != nil {
-			h.logger.WithError(err).WithField("scope", scopeName).Warn("could not localize scope label")
+			h.logger.Warn("could not localize scope label", "error", err, "scope", scopeName)
 			label = scopeName
 		}
 
@@ -439,7 +451,7 @@ func (h *ConsentHandler) mapRequestedClaims(
 		if claimElement != nil {
 			for k, v := range *claimElement {
 				if _, ok := supportedClaims[k]; !ok {
-					h.logger.WithField("claim", k).Warn("ignoring unsupported claim")
+					h.logger.Warn("ignoring unsupported claim", "claim", k)
 
 					continue
 				}
@@ -448,7 +460,7 @@ func (h *ConsentHandler) mapRequestedClaims(
 					DefaultMessage: supportedClaims[k],
 				})
 				if err != nil {
-					h.logger.WithError(err).WithField("claim", k).Warn("could not localize claim label")
+					h.logger.Warn("could not localize claim label", "error", err, "claim", k)
 					label = k
 				}
 
@@ -578,9 +590,9 @@ func (h *ConsentHandler) parseUserInfoClaims(
 		}
 
 		if claim.IsEssential() {
-			h.logger.WithField("claim", claimName).Warn("handling for essential claim not implemented")
+			h.logger.Warn("handling for essential claim not implemented", "claim", claimName)
 		} else {
-			h.logger.WithField("claim", claimName).Warn("handling for claim not implemented")
+			h.logger.Warn("handling for claim not implemented", "claim", claimName)
 		}
 	}
 
@@ -588,7 +600,7 @@ func (h *ConsentHandler) parseUserInfoClaims(
 }
 
 func NewConsentHandler(
-	logger *log.Logger, templateCache TemplateCache, trans *services.I18NService, adminClient client.OAuth2Api,
+	logger *slog.Logger, templateCache TemplateCache, trans *services.I18NService, adminClient client.OAuth2API,
 ) *ConsentHandler {
 	return &ConsentHandler{
 		logger:      logger,

internal/handlers/doc.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");

internal/handlers/error.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -22,10 +22,9 @@ import (
 	"context"
 	"fmt"
 	"html/template"
+	"log/slog"
 	"net/http"
 
-	log "github.com/sirupsen/logrus"
-
 	"code.cacert.org/cacert/oidc-idp/internal/services"
 	"code.cacert.org/cacert/oidc-idp/ui"
 )
@@ -44,7 +43,7 @@ type ErrorDetails struct {
 }
 
 type ErrorBucket struct {
-	logger       *log.Logger
+	logger       *slog.Logger
 	trans        *services.I18NService
 	errorDetails *ErrorDetails
 	templates    TemplateCache
@@ -118,9 +117,7 @@ func (w *errorResponseWriter) Write(content []byte) (int, error) {
 }
 
 func ErrorHandling(
-	logger *log.Logger,
-	templateCache TemplateCache,
-	trans *services.I18NService,
+	logger *slog.Logger, templateCache TemplateCache, trans *services.I18NService,
 ) (func(http.Handler) http.Handler, error) {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -139,7 +136,7 @@ func ErrorHandling(
 }
 
 type ErrorHandler struct {
-	logger   *log.Logger
+	logger   *slog.Logger
 	trans    *services.I18NService
 	template *template.Template
 }
@@ -156,10 +153,10 @@ func (h *ErrorHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	errorName := r.URL.Query().Get("error")
 	errorDescription := r.URL.Query().Get("error_description")
 
-	h.logger.WithFields(log.Fields{
-		"error_name":        errorName,
-		"error_description": errorDescription,
-	}).Debug("error from Hydra")
+	h.logger.Debug(
+		"error from Hydra",
+		"error_name", errorName, "error_description", errorDescription,
+	)
 
 	rendered := bytes.NewBuffer(make([]byte, 0))
 
@@ -174,7 +171,7 @@ func (h *ErrorHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		"ErrorMessage": errorDescription,
 	})
 	if err != nil {
-		h.logger.WithError(err).Error("template rendering failed")
+		h.logger.Error("template rendering failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -186,7 +183,7 @@ func (h *ErrorHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	_, _ = w.Write(rendered.Bytes())
 }
 
-func NewErrorHandler(logger *log.Logger, trans *services.I18NService) *ErrorHandler {
+func NewErrorHandler(logger *slog.Logger, trans *services.I18NService) *ErrorHandler {
 	return &ErrorHandler{
 		logger: logger,
 		trans:  trans,

internal/handlers/login.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -23,12 +23,12 @@ import (
 	"fmt"
 	"html/template"
 	"io"
+	"log/slog"
 	"net/http"
 
 	"github.com/gorilla/csrf"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	client "github.com/ory/hydra-client-go/v2"
-	log "github.com/sirupsen/logrus"
 
 	"code.cacert.org/cacert/oidc-idp/internal/services"
 )
@@ -49,9 +49,9 @@ const (
 )
 
 type LoginHandler struct {
-	logger      *log.Logger
+	logger      *slog.Logger
 	trans       *services.I18NService
-	adminClient client.OAuth2Api
+	adminClient client.OAuth2API
 	templates   TemplateCache
 }
 
@@ -72,7 +72,7 @@ func (h *LoginHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	h.logger.WithField("challenge", challenge).Debug("received login challenge")
+	h.logger.Debug("received login challenge", "challenge", challenge)
 
 	certFullName, certEmails := getDataFromClientCert(h.logger, r)
 
@@ -100,9 +100,10 @@ func (h *LoginHandler) handleGet(
 		r.Context(),
 	).LoginChallenge(challenge).Execute()
 	if err != nil {
-		h.logger.WithError(err).WithField(
-			"challenge", challenge,
-		).Warn("could not get login request for challenge")
+		h.logger.Warn(
+			"could not get login request for challenge",
+			"error", err, "challenge", challenge,
+		)
 
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
@@ -111,9 +112,10 @@ func (h *LoginHandler) handleGet(
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "login_request": oAuth2LoginRequest},
-	).Debug("got response for GetOAuth2LoginRequest")
+	h.logger.Debug(
+		"got response for GetOAuth2LoginRequest",
+		"response", response.Status, "login_request", oAuth2LoginRequest,
+	)
 
 	h.renderRequestForClientCert(w, r, certEmails, localizer, oAuth2LoginRequest)
 }
@@ -151,14 +153,14 @@ func (h *LoginHandler) handlePost(
 	}
 
 	// perform certificate auth
-	h.logger.WithFields(log.Fields{
-		"emails":    certEmails,
-		"full_name": certFullName,
-	}).Info("will perform certificate authentication")
+	h.logger.Info(
+		"will perform certificate authentication",
+		"emails", certEmails, "full_name", certFullName,
+	)
 
 	userID, err := h.performCertificateLogin(certEmails, r)
 	if err != nil {
-		h.logger.WithError(err).Error("could not perform certificate login")
+		h.logger.Error("could not perform certificate login", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -166,7 +168,7 @@ func (h *LoginHandler) handlePost(
 
 	session, err := GetSession(r)
 	if err != nil {
-		h.logger.WithError(err).Error("could not perform certificate login")
+		h.logger.Error("could not perform certificate login", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -178,7 +180,7 @@ func (h *LoginHandler) handlePost(
 	session.Options.Secure = true
 
 	if err = session.Save(r, w); err != nil {
-		h.logger.WithError(err).Error("could not save session")
+		h.logger.Error("could not save session", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -194,9 +196,8 @@ func (h *LoginHandler) handlePost(
 		r.Context(),
 	).LoginChallenge(challenge).AcceptOAuth2LoginRequest(*acceptRequest).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("error getting login request")
+		h.logger.Error("error getting login request", "error", err)
 
-		// h.fillAcceptLoginRequestErrorBucket(r, err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -204,13 +205,13 @@ func (h *LoginHandler) handlePost(
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "accept_login_request": loginRequest},
-	).Debug("got response for AcceptOAuth2LoginRequest")
+	h.logger.Debug("got response for AcceptOAuth2LoginRequest",
+		"response", response.Status, "accept_login_request", loginRequest,
+	)
 
-	if h.logger.IsLevelEnabled(log.TraceLevel) {
+	if h.logger.Enabled(r.Context(), slog.LevelDebug) {
 		if rb, err := io.ReadAll(response.Body); err == nil {
-			h.logger.WithField("response_body", rb).Trace("response body from Hydra")
+			h.logger.Debug("response body from Hydra", "response_body", rb)
 		}
 	}
 
@@ -218,36 +219,6 @@ func (h *LoginHandler) handlePost(
 	w.WriteHeader(http.StatusFound)
 }
 
-/*
-func (h *LoginHandler) fillAcceptLoginRequestErrorBucket(r *http.Request, err error) {
-	if errorBucket := GetErrorBucket(r); errorBucket != nil {
-		var (
-			errorDetails               *ErrorDetails
-			acceptLoginRequestNotFound *client.AcceptLoginRequestNotFound
-		)
-
-		if errors.As(err, &acceptLoginRequestNotFound) {
-			payload := acceptLoginRequestNotFound.GetPayload()
-			errorDetails = &ErrorDetails{
-				ErrorMessage: payload.Error,
-				ErrorDetails: []string{payload.ErrorDescription},
-			}
-
-			if acceptLoginRequestNotFound.Payload.StatusCode != 0 {
-				errorDetails.ErrorCode = strconv.Itoa(int(payload.StatusCode))
-			}
-		} else {
-			errorDetails = &ErrorDetails{
-				ErrorMessage: "could not accept login",
-				ErrorDetails: []string{err.Error()},
-			}
-		}
-
-		errorBucket.AddError(errorDetails)
-	}
-}
-*/
-
 func (h *LoginHandler) rejectLogin(
 	w http.ResponseWriter,
 	r *http.Request,
@@ -263,7 +234,7 @@ func (h *LoginHandler) rejectLogin(
 		r.Context(),
 	).LoginChallenge(challenge).RejectOAuth2Request(*rejectRequest).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("error getting reject login request")
+		h.logger.Error("error getting reject login request", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -271,9 +242,10 @@ func (h *LoginHandler) rejectLogin(
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "reject_login_request": rejectLoginRequest},
-	).Debug("go response for RejectOAuth2LoginRequest")
+	h.logger.Debug(
+		"go response for RejectOAuth2LoginRequest",
+		"response", response.Status, "reject_login_request", rejectLoginRequest,
+	)
 
 	w.Header().Set("Location", rejectLoginRequest.GetRedirectTo())
 	w.WriteHeader(http.StatusFound)
@@ -308,7 +280,7 @@ func (h *LoginHandler) renderRequestForClientCert(
 		"FlashMessage":    r.Context().Value(ctxKeyMessage),
 	})
 	if err != nil {
-		h.logger.WithError(err).Error("template rendering failed")
+		h.logger.Error("template rendering failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -340,7 +312,7 @@ func (h *LoginHandler) renderNoChallengeInRequest(w http.ResponseWriter, localiz
 		)),
 	})
 	if err != nil {
-		h.logger.WithError(err).Error("template rendering failed")
+		h.logger.Error("template rendering failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -348,7 +320,7 @@ func (h *LoginHandler) renderNoChallengeInRequest(w http.ResponseWriter, localiz
 }
 
 func NewLoginHandler(
-	logger *log.Logger, tc TemplateCache, trans *services.I18NService, adminClient client.OAuth2Api,
+	logger *slog.Logger, tc TemplateCache, trans *services.I18NService, adminClient client.OAuth2API,
 ) *LoginHandler {
 	return &LoginHandler{
 		logger:      logger,

internal/handlers/logout.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -19,28 +19,28 @@ package handlers
 
 import (
 	"html/template"
+	"log/slog"
 	"net/http"
 
 	client "github.com/ory/hydra-client-go/v2"
-	log "github.com/sirupsen/logrus"
 
 	"code.cacert.org/cacert/oidc-idp/internal/services"
 )
 
 type LogoutHandler struct {
-	adminClient client.OAuth2Api
-	logger      *log.Logger
+	adminClient client.OAuth2API
+	logger      *slog.Logger
 }
 
 func (h *LogoutHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	challenge := r.URL.Query().Get("logout_challenge")
-	h.logger.WithField("challenge", challenge).Debug("received logout challenge")
+	h.logger.Debug("received logout challenge", "challenge", challenge)
 
 	logoutRequest, response, err := h.adminClient.GetOAuth2LogoutRequest(
 		r.Context(),
 	).LogoutChallenge(challenge).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("error getting logout requests")
+		h.logger.Error("error getting logout requests", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
@@ -48,29 +48,31 @@ func (h *LogoutHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "logout_request": logoutRequest},
-	).Debug("got response for GetOAuth2LogoutRequest")
+	h.logger.Debug(
+		"got response for GetOAuth2LogoutRequest",
+		"response", response.Status, "logout_request", logoutRequest,
+	)
 
 	acceptLogoutRequest, response, err := h.adminClient.AcceptOAuth2LogoutRequest(
 		r.Context(),
 	).LogoutChallenge(challenge).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("accept logout request failed")
+		h.logger.Error("accept logout request failed", "error", err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 	}
 
 	defer func() { _ = response.Body.Close() }()
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "accept_logout_request": acceptLogoutRequest},
-	).Debug("got response for AcceptOAuth2LogoutRequest")
+	h.logger.Debug(
+		"got response for AcceptOAuth2LogoutRequest",
+		"response", response.Status, "accept_logout_request", acceptLogoutRequest,
+	)
 
 	w.Header().Set("Location", acceptLogoutRequest.GetRedirectTo())
 	w.WriteHeader(http.StatusFound)
 }
 
-func NewLogout(logger *log.Logger, adminClient client.OAuth2Api) *LogoutHandler {
+func NewLogout(logger *slog.Logger, adminClient client.OAuth2API) *LogoutHandler {
 	return &LogoutHandler{
 		logger:      logger,
 		adminClient: adminClient,
@@ -78,7 +80,7 @@ func NewLogout(logger *log.Logger, adminClient client.OAuth2Api) *LogoutHandler
 }
 
 type LogoutSuccessHandler struct {
-	logger    *log.Logger
+	logger    *slog.Logger
 	trans     *services.I18NService
 	templates TemplateCache
 }
@@ -103,9 +105,7 @@ func (h *LogoutSuccessHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
 }
 
 func NewLogoutSuccess(
-	logger *log.Logger,
-	templateCache TemplateCache,
-	trans *services.I18NService,
+	logger *slog.Logger, templateCache TemplateCache, trans *services.I18NService,
 ) *LogoutSuccessHandler {
 	return &LogoutSuccessHandler{logger: logger, trans: trans, templates: templateCache}
 }

internal/handlers/manage.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -22,6 +22,7 @@ import (
 	"fmt"
 	"html/template"
 	"io"
+	"log/slog"
 	"net/http"
 	"sort"
 	"strings"
@@ -30,13 +31,12 @@ import (
 	"github.com/gorilla/csrf"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	client "github.com/ory/hydra-client-go/v2"
-	log "github.com/sirupsen/logrus"
 
 	"code.cacert.org/cacert/oidc-idp/internal/services"
 )
 
 type IndexHandler struct {
-	logger    *log.Logger
+	logger    *slog.Logger
 	trans     *services.I18NService
 	templates TemplateCache
 }
@@ -66,14 +66,14 @@ func (h *IndexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	})
 }
 
-func NewIndex(logger *log.Logger, templateCache TemplateCache, trans *services.I18NService) *IndexHandler {
+func NewIndex(logger *slog.Logger, templateCache TemplateCache, trans *services.I18NService) *IndexHandler {
 	return &IndexHandler{logger: logger, trans: trans, templates: templateCache}
 }
 
 type ManageConsentHandler struct {
-	logger    *log.Logger
+	logger    *slog.Logger
 	trans     *services.I18NService
-	adminAPI  client.OAuth2Api
+	adminAPI  client.OAuth2API
 	templates TemplateCache
 }
 
@@ -107,13 +107,15 @@ func (h *ManageConsentHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
 
 	requestSession, err := GetSession(r)
 	if err != nil {
-		h.logger.WithError(err).Error("could not get session for request")
+		h.logger.Error("could not get session for request", "error", err)
 
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 
 		return
 	}
 
+	h.logger.Debug("got session for request", "new_session", requestSession.IsNew)
+
 	h.templates.render(h.logger, w, ManageConsent, map[string]interface{}{
 		"Title": h.trans.LookupMessage("ManageConsentTitle", nil, localizer),
 		"Description": template.HTML(h.trans.LookupMarkdownMessage( //nolint:gosec
@@ -202,7 +204,7 @@ func (h *ManageConsentHandler) getConsentSessions(
 ) ([]client.OAuth2ConsentSession, bool) {
 	sessions, response, err := h.adminAPI.ListOAuth2ConsentSessions(r.Context()).Subject(subject).Execute()
 	if err != nil {
-		h.logger.WithError(err).Error("error getting consent session list")
+		h.logger.Error("error getting consent session list", "error", err)
 
 		// h.fillAcceptLoginRequestErrorBucket(r, err)
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
@@ -212,13 +214,14 @@ func (h *ManageConsentHandler) getConsentSessions(
 
 	defer func(response *http.Response) { _ = response.Body.Close() }(response)
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "consent_sessions": sessions},
-	).Debug("got response for AcceptOAuth2LoginRequest")
+	h.logger.Debug(
+		"got response for AcceptOAuth2LoginRequest",
+		"response", response.Status, "consent_sessions", sessions,
+	)
 
-	if h.logger.IsLevelEnabled(log.TraceLevel) {
+	if h.logger.Enabled(r.Context(), slog.LevelDebug) {
 		if rb, err := io.ReadAll(response.Body); err == nil {
-			h.logger.WithField("response_body", rb).Trace("response body from Hydra")
+			h.logger.Debug("response body from Hydra", "response_body", rb)
 		}
 	}
 
@@ -226,15 +229,15 @@ func (h *ManageConsentHandler) getConsentSessions(
 }
 
 func NewManageConsent(
-	logger *log.Logger, tc TemplateCache, trans *services.I18NService, adminAPI client.OAuth2Api,
+	logger *slog.Logger, tc TemplateCache, trans *services.I18NService, adminAPI client.OAuth2API,
 ) *ManageConsentHandler {
 	return &ManageConsentHandler{logger: logger, trans: trans, adminAPI: adminAPI, templates: tc}
 }
 
 type RevokeConsentHandler struct {
-	logger    *log.Logger
+	logger    *slog.Logger
 	trans     *services.I18NService
-	adminAPI  client.OAuth2Api
+	adminAPI  client.OAuth2API
 	templates TemplateCache
 }
 
@@ -272,7 +275,7 @@ func (h *RevokeConsentHandler) handleGet(
 ) {
 	clientApp, found, err := h.getClient(r.Context(), clientID)
 	if err != nil {
-		h.logger.WithError(err).Error("could not get client")
+		h.logger.Error("could not get client", "error", err)
 
 		http.Error(
 			w, h.trans.LookupHTTPErrorMessage(http.StatusInternalServerError, localizer),
@@ -308,7 +311,7 @@ func (h *RevokeConsentHandler) handlePost(
 ) {
 	err := h.revokeConsent(r.Context(), clientID, subject)
 	if err != nil {
-		h.logger.WithError(err).Error("could not revoke consent")
+		h.logger.Error("could not revoke consent", "error", err)
 
 		http.Error(
 			w, h.trans.LookupHTTPErrorMessage(http.StatusInternalServerError, localizer),
@@ -329,13 +332,14 @@ func (h *RevokeConsentHandler) getClient(ctx context.Context, clientID string) (
 
 	defer func(response *http.Response) { _ = response.Body.Close() }(response)
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status, "client_app": clientApp},
-	).Debug("got response for GetOAuth2Client")
+	h.logger.Debug(
+		"got response for GetOAuth2Client",
+		"response", response.Status, "client_app", clientApp,
+	)
 
-	if h.logger.IsLevelEnabled(log.TraceLevel) {
+	if h.logger.Enabled(ctx, slog.LevelDebug) {
 		if rb, err := io.ReadAll(response.Body); err == nil {
-			h.logger.WithField("response_body", rb).Trace("response body from Hydra")
+			h.logger.Debug("response body from Hydra", "response_body", rb)
 		}
 	}
 
@@ -350,13 +354,11 @@ func (h *RevokeConsentHandler) revokeConsent(ctx context.Context, clientID, subj
 
 	defer func(response *http.Response) { _ = response.Body.Close() }(response)
 
-	h.logger.WithFields(
-		log.Fields{"response": response.Status},
-	).Debug("got response for RevokeOAuth2ConsentSessions")
+	h.logger.Debug("got response for RevokeOAuth2ConsentSessions", "response", response.Status)
 
-	if h.logger.IsLevelEnabled(log.TraceLevel) {
+	if h.logger.Enabled(ctx, slog.LevelDebug) {
 		if rb, err := io.ReadAll(response.Body); err == nil {
-			h.logger.WithField("response_body", rb).Trace("response body from Hydra")
+			h.logger.Debug("response body from Hydra", "response_body", rb)
 		}
 	}
 
@@ -364,7 +366,7 @@ func (h *RevokeConsentHandler) revokeConsent(ctx context.Context, clientID, subj
 }
 
 func NewRevokeConsent(
-	logger *log.Logger, tc TemplateCache, trans *services.I18NService, adminAPI client.OAuth2Api,
+	logger *slog.Logger, tc TemplateCache, trans *services.I18NService, adminAPI client.OAuth2API,
 ) *RevokeConsentHandler {
 	return &RevokeConsentHandler{logger: logger, trans: trans, adminAPI: adminAPI, templates: tc}
 }

internal/handlers/observability.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,10 +20,9 @@ package handlers
 import (
 	"context"
 	"fmt"
+	"log/slog"
 	"net/http"
 	"sync/atomic"
-
-	log "github.com/sirupsen/logrus"
 )
 
 type key int
@@ -54,7 +53,7 @@ func (sci *statusCodeInterceptor) Write(content []byte) (int, error) {
 	return count, nil
 }
 
-func Logging(logger *log.Logger) func(http.Handler) http.Handler {
+func Logging(logger *slog.Logger) func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			interceptor := &statusCodeInterceptor{w, http.StatusOK, 0}
@@ -63,15 +62,18 @@ func Logging(logger *log.Logger) func(http.Handler) http.Handler {
 				if !ok {
 					requestID = "unknown"
 				}
-				logger.Infof(
-					"[%s] %s \"%s %s\" %d %d \"%s\"",
-					requestID,
-					r.RemoteAddr,
-					r.Method,
-					r.URL.Path,
-					interceptor.code,
-					interceptor.count,
-					r.UserAgent(),
+
+				logger.Info(
+					fmt.Sprintf(
+						"[%s] %s \"%s %s\" %d %d \"%s\"",
+						requestID,
+						r.RemoteAddr,
+						r.Method,
+						r.URL.Path,
+						interceptor.code,
+						interceptor.count,
+						r.UserAgent(),
+					),
 				)
 			}()
 			next.ServeHTTP(interceptor, r)
@@ -86,7 +88,9 @@ func Tracing(nextRequestID func() string) func(http.Handler) http.Handler {
 			if requestID == "" {
 				requestID = nextRequestID()
 			}
+
 			ctx := context.WithValue(r.Context(), requestIDKey, requestID)
+
 			w.Header().Set("X-Request-Id", requestID)
 			next.ServeHTTP(w, r.WithContext(ctx))
 		})
@@ -96,7 +100,7 @@ func Tracing(nextRequestID func() string) func(http.Handler) http.Handler {
 var Healthy int32
 
 func NewHealthHandler() http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	return http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		if atomic.LoadInt32(&Healthy) == 1 {
 			w.WriteHeader(http.StatusNoContent)
 

internal/handlers/security.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,23 +20,23 @@ package handlers
 import (
 	"crypto/x509"
 	"fmt"
+	"log/slog"
 	"net/http"
 	"time"
-
-	log "github.com/sirupsen/logrus"
 )
 
 func EnableHSTS() func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			const Days180 = 180
+
 			w.Header().Set("Strict-Transport-Security", fmt.Sprintf("max-age=%d", int((time.Hour*24*Days180).Seconds())))
 			next.ServeHTTP(w, r)
 		})
 	}
 }
 
-func getDataFromClientCert(logger *log.Logger, r *http.Request) (string, []string) {
+func getDataFromClientCert(logger *slog.Logger, r *http.Request) (string, []string) {
 	if r.TLS != nil && r.TLS.PeerCertificates != nil && len(r.TLS.PeerCertificates) > 0 {
 		firstCert := r.TLS.PeerCertificates[0]
 
@@ -45,9 +45,7 @@ func getDataFromClientCert(logger *log.Logger, r *http.Request) (string, []strin
 		}
 
 		for _, email := range firstCert.EmailAddresses {
-			logger.WithField(
-				"email", email,
-			).Info("authenticated with a client certificate for email address")
+			logger.Info("authenticated with a client certificate for email address", "email", email)
 		}
 
 		return firstCert.Subject.CommonName, firstCert.EmailAddresses

internal/models/oidc.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");

internal/services/configuration.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -19,6 +19,7 @@ package services
 
 import (
 	"fmt"
+	"log/slog"
 	"os"
 	"strings"
 
@@ -28,7 +29,6 @@ import (
 	"github.com/knadh/koanf/providers/env"
 	"github.com/knadh/koanf/providers/file"
 	"github.com/knadh/koanf/providers/posflag"
-	"github.com/sirupsen/logrus"
 	"github.com/spf13/pflag"
 )
 
@@ -51,7 +51,7 @@ var DefaultConfig = map[string]interface{}{
 }
 
 func ConfigureApplication(
-	logger *logrus.Logger,
+	logger *slog.Logger,
 	appName string,
 	defaultConfig map[string]interface{},
 ) (*koanf.Koanf, error) {
@@ -70,7 +70,7 @@ func ConfigureApplication(
 	var err error
 
 	if err = f.Parse(os.Args[1:]); err != nil {
-		logger.WithError(err).Fatal("could not parse command line arguments")
+		return nil, fmt.Errorf("could not parse command line arguments: %w", err)
 	}
 
 	config := koanf.New(".")
@@ -78,18 +78,22 @@ func ConfigureApplication(
 	_ = config.Load(confmap.Provider(defaultConfig, "."), nil)
 
 	if err = config.Load(file.Provider(defaultFile), toml.Parser()); err != nil && !os.IsNotExist(err) {
-		logrus.WithError(err).WithField("file", defaultFile).Fatal("error loading configuration from file")
+		logger.Error("could not load configuration from file", "file", defaultFile)
+
+		return nil, fmt.Errorf("error loading configuration: %w", err)
 	}
 
 	cFiles, _ := f.GetStringSlice("conf")
 	for _, c := range cFiles {
 		if err = config.Load(file.Provider(c), toml.Parser()); err != nil {
-			logger.WithError(err).WithField("file", c).Fatal("error loading configuration from file")
+			logger.Error("could not load configuration from file", "file", c)
+
+			return nil, fmt.Errorf("error loading configuration: %w", err)
 		}
 	}
 
 	if err = config.Load(posflag.Provider(f, ".", config), nil); err != nil {
-		logger.WithError(err).Fatal("error loading configuration from command line")
+		return nil, fmt.Errorf("error loading configuration from command line: %w", err)
 	}
 
 	prefix := fmt.Sprintf("%s_", strings.ToUpper(appName))
@@ -97,7 +101,7 @@ func ConfigureApplication(
 	if err = config.Load(env.Provider(prefix, ".", func(s string) string {
 		return strings.ReplaceAll(strings.ToLower(strings.TrimPrefix(s, prefix)), "_", ".")
 	}), nil); err != nil {
-		logrus.WithError(err).Fatal("error loading configuration from environment")
+		return nil, fmt.Errorf("error loading configuration from environment: %w", err)
 	}
 
 	return config, nil

internal/services/i18n.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -21,9 +21,9 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"log/slog"
 	"net/http"
 
-	log "github.com/sirupsen/logrus"
 	"github.com/yuin/goldmark"
 
 	"code.cacert.org/cacert/oidc-idp/translations"
@@ -35,7 +35,7 @@ import (
 
 type MessageCatalog struct {
 	messages map[string]*i18n.Message
-	logger   *log.Logger
+	logger   *slog.Logger
 }
 
 func (m *MessageCatalog) AddMessages(messages map[string]*i18n.Message) {
@@ -61,7 +61,7 @@ func (s *I18NService) LookupMessage(
 		return translation
 	}
 
-	s.logger.WithField("id", id).Warn("no translation found for id")
+	s.logger.Warn("no translation found for id", "id", id)
 
 	return id
 }
@@ -88,7 +88,7 @@ func (s *I18NService) LookupMarkdownMessage(
 			TemplateData:   templateData,
 		})
 		if err != nil {
-			s.logger.WithError(err).Warn(err)
+			s.logger.Warn("message localization failed", "error", err, "message", message)
 		}
 
 		if translation == "" {
@@ -105,7 +105,7 @@ func (s *I18NService) LookupMarkdownMessage(
 		return buf.String()
 	}
 
-	s.logger.WithField("id", id).Warn("no translation found for id")
+	s.logger.Warn("no translation found for id", "id", id)
 
 	return id
 }
@@ -129,7 +129,7 @@ func (s *I18NService) LookupMessagePlural(
 		return translation
 	}
 
-	s.logger.WithField("id", id).Warn("no translation found for id")
+	s.logger.Warn("no translation found for id", "id", id)
 
 	return id
 }
@@ -138,20 +138,20 @@ func (m *MessageCatalog) handleLocalizeError(id string, translation string, err
 	var messageNotFound *i18n.MessageNotFoundErr
 
 	if errors.As(err, &messageNotFound) {
-		m.logger.WithError(err).WithField("message", id).Warn("message not found")
+		m.logger.Warn("message not found", "error", err, "message", id)
 
 		if translation != "" {
 			return translation
 		}
 	} else {
-		m.logger.WithError(err).WithField("message", id).Error("translation error")
+		m.logger.Error("translation error", "error", err, "message", id)
 	}
 
 	return id
 }
 
 type I18NService struct {
-	logger  *log.Logger
+	logger  *slog.Logger
 	bundle  *i18n.Bundle
 	catalog *MessageCatalog
 }
@@ -181,6 +181,16 @@ func (s *I18NService) AddMessages() error {
 		Description: "Title for a button to cancel an action",
 		Other:       "Cancel",
 	}
+	messages["ButtonTitleConsent"] = &i18n.Message{
+		ID:          "ButtonTitleConsent",
+		Description: "Title for a button to give consent",
+		Other:       "Consent",
+	}
+	messages["ButtonTitleDeny"] = &i18n.Message{
+		ID:          "ButtonTitleDeny",
+		Description: "Title for a button to deny consent",
+		Other:       "Deny",
+	}
 	messages["ButtonTitleRevoke"] = &i18n.Message{
 		ID:          "ButtonTitleRevoke",
 		Description: "Title for a button to revoke consent",
@@ -246,14 +256,12 @@ func (s *I18NService) AddMessages() error {
 		Other: "Unknown",
 	}
 	messages["IntroConsentRequested"] = &i18n.Message{
-		ID: "IntroConsentRequested",
-		Other: "The <strong>{{ .client }}</strong> application requested your consent for the following set of " +
-			"permissions:",
+		ID:    "IntroConsentRequested",
+		Other: "The **{{ .client }}** application requested your consent for the following set of permissions:",
 	}
 	messages["IntroConsentMoreInformation"] = &i18n.Message{
-		ID: "IntroConsentMoreInformation",
-		Other: "You can find more information about <strong>{{ .client }}</strong> at " +
-			"<a href=\"{{ .clientLink }}\">its description page</a>.",
+		ID:    "IntroConsentMoreInformation",
+		Other: "You can find more information about **{{ .client }}** at [its description page]({{ .clientLink }}).",
 	}
 	messages["ClaimsInformation"] = &i18n.Message{
 		ID:    "ClaimsInformation",
@@ -265,7 +273,7 @@ func (s *I18NService) AddMessages() error {
 	}
 	messages["CertLoginIntroText"] = &i18n.Message{
 		ID:    "CertLoginIntroText",
-		Other: "The application <strong>{{ .ClientName }}</strong> requests a login.",
+		Other: "The application **{{ .ClientName }}** requests a login.",
 	}
 	messages["EmailChoiceText"] = &i18n.Message{
 		ID:  "EmailChoiceText",
@@ -361,7 +369,7 @@ func (s *I18NService) Localizer(languages string) *i18n.Localizer {
 	return i18n.NewLocalizer(s.bundle, languages)
 }
 
-func InitI18n(logger *log.Logger, languages []string) *I18NService {
+func InitI18n(logger *slog.Logger, languages []string) *I18NService {
 	bundle := i18n.NewBundle(language.English)
 	bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
 
@@ -370,7 +378,7 @@ func InitI18n(logger *log.Logger, languages []string) *I18NService {
 
 		bundleBytes, err := translations.Bundles.ReadFile(bundleName)
 		if err != nil {
-			logger.WithField("bundle", bundleName).Warn("message bundle not found")
+			logger.Warn("message bundle not found", "bundle", bundleName)
 
 			continue
 		}
@@ -383,7 +391,7 @@ func InitI18n(logger *log.Logger, languages []string) *I18NService {
 	return &I18NService{logger: logger, bundle: bundle, catalog: catalog}
 }
 
-func initMessageCatalog(logger *log.Logger) *MessageCatalog {
+func initMessageCatalog(logger *slog.Logger) *MessageCatalog {
 	messages := make(map[string]*i18n.Message)
 	messages["ErrorTitle"] = &i18n.Message{
 		ID:    "ErrorTitle",

internal/services/security.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -19,21 +19,25 @@ package services
 
 import (
 	"crypto/rand"
-
-	log "github.com/sirupsen/logrus"
+	"errors"
+	"log/slog"
 )
 
-func GenerateKey(length int) []byte {
+var errCouldNotGenerateKey = errors.New("could not generate key")
+
+func GenerateKey(length int) ([]byte, error) {
 	key := make([]byte, length)
 
 	read, err := rand.Read(key)
 	if err != nil {
-		log.WithError(err).Fatal("could not generate key")
+		return nil, errCouldNotGenerateKey
 	}
 
 	if read != length {
-		log.WithFields(log.Fields{"read": read, "expected": length}).Fatal("read unexpected number of bytes")
+		slog.Error("read unexpected number of bytes", "read", read, "expected", length)
+
+		return nil, errCouldNotGenerateKey
 	}
 
-	return key
+	return key, nil
 }

internal/services/session.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");

translations/active.de.toml

@@ -16,14 +16,24 @@ description = "Title for a button to confirm consent revocation"
 hash = "sha1-bb25839982a1fe044fc2ac39552903c65402ad48"
 other = "Ja, Widerrufen!"
 
+[ButtonTitleConsent]
+description = "Title for a button to give consent"
+hash = "sha1-7f5c5d105e7a9600c7a8d3d092c7e812cf344e95"
+other = "Zustimmen"
+
+[ButtonTitleDeny]
+description = "Title for a button to deny consent"
+hash = "sha1-d5245e4b19ed6f0af002aee7ab488b8f822d53c7"
+other = "Ablehnen"
+
 [ButtonTitleRevoke]
 description = "Title for a button to revoke consent"
 hash = "sha1-b4524373ff63f37e062bd5f496e8ba04ee5c678d"
 other = "Widerrufen"
 
 [CertLoginIntroText]
-hash = "sha1-e9f7c0522e49ffacc49e3fc35c6ffd31e495baf6"
-other = "Die Anwendung <strong>{{ .ClientName }}</strong> fragt nach einer Anmeldung."
+hash = "sha1-02871569c8d36e522cdb0716081ef62b7c7a71ec"
+other = "Die Anwendung **{{ .ClientName }}** fragt nach einer Anmeldung."
 
 [CertLoginRequestText]
 hash = "sha1-1b20eea0f6fbb4ff139ecfe6b7a93c98cb14b8d7"
@@ -92,12 +102,12 @@ hash = "sha1-00632c6562df53c62861c33e468e729887816419"
 other = "Besuche [die Freigabeverwaltung]({{ .ManageConsentHRef }}), um deine Freigaben für Applikationen einzusehen oder zu widerrufen."
 
 [IntroConsentMoreInformation]
-hash = "sha1-f58b8378238bd433deef3c3e6b0b70d0fd0dd59e"
-other = "Auf der <a href=\"{{ .clientLink }}\">Beschreibungsseite</a> findest du mehr Informationen zu <strong>{{ .client }}</strong>."
+hash = "sha1-836b2931b417e98db4102731604443ee2700123c"
+other = "Auf der [Beschreibungsseite]({{ .clientLink }}) findest du mehr Informationen zu **{{ .client }}**."
 
 [IntroConsentRequested]
-hash = "sha1-3ac6a3583d40b5e8930c57531f0be9706f1e0194"
-other = "Die Anwendung <strong>{{ .client }}</strong> hat deine Zustimmung für die Erteilung der folgenden Berechtigungen angefragt:"
+hash = "sha1-db5e67a16c181c4d27baf5d0e3bf255224b0fffc"
+other = "Die Anwendung **{{ .client }}** hat deine Zustimmung für die Erteilung der folgenden Berechtigungen angefragt:"
 
 [LabelAcceptCertLogin]
 description = "Label for a button to accept certificate login"

translations/active.en.toml

@@ -1,6 +1,6 @@
 AuthServerErrorExplanation = "A request that your browser sent to the authorization server caused an error. The authorization server returned details about the error that are printed below."
 AuthServerErrorTitle = "Authorization server returned an error"
-CertLoginIntroText = "The application <strong>{{ .ClientName }}</strong> requests a login."
+CertLoginIntroText = "The application **{{ .ClientName }}** requests a login."
 CertLoginRequestText = "Do you want to use the chosen identity from the certificate for authentication?"
 ClaimsInformation = "In addition the application wants access to the following information:"
 ConfirmRevokeExplanation = "Do you want to revoke your consent to allow **{{ .Application }}** access to identity data for **{{ .Subject }}**?"
@@ -10,8 +10,8 @@ ErrorUnknown = "Unknown error"
 HintChooseAnIdentityForAuthentication = "Choose an identity for authentication."
 IndexTitle = "Welcome to your identity provider"
 IndexWelcomeMessage = "Go to [manage consent]({{ .ManageConsentHRef }}) to show or revoke consent you have given to client applications."
-IntroConsentMoreInformation = "You can find more information about <strong>{{ .client }}</strong> at <a href=\"{{ .clientLink }}\">its description page</a>."
-IntroConsentRequested = "The <strong>{{ .client }}</strong> application requested your consent for the following set of permissions:"
+IntroConsentMoreInformation = "You can find more information about **{{ .client }}** at [its description page]({{ .clientLink }})."
+IntroConsentRequested = "The **{{ .client }}** application requested your consent for the following set of permissions:"
 LabelConsent = "I hereby agree that the application may get the requested permissions."
 LabelNever = "Never"
 LabelSubmit = "Submit"
@@ -43,6 +43,14 @@ other = "Cancel"
 description = "Title for a button to confirm consent revocation"
 other = "Yes, Revoke!"
 
+[ButtonTitleConsent]
+description = "Title for a button to give consent"
+other = "Consent"
+
+[ButtonTitleDeny]
+description = "Title for a button to deny consent"
+other = "Deny"
+
 [ButtonTitleRevoke]
 description = "Title for a button to revoke consent"
 other = "Revoke"

translations/translations.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020-2023 CAcert Inc.
+Copyright CAcert Inc.
 SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");

ui/templates/base.gohtml

@@ -33,7 +33,7 @@
     {{ template "content" . }}
     <footer class="footer mt-auto py-3">
         <div class="container">
-            <span class="text-muted small">© 2020-2023 <a href="https://www.cacert.org/">CAcert</a></span>
+            <span class="text-muted small">© <a href="https://www.cacert.org/">CAcert</a></span>
         </div>
     </footer>
     <script type="text/javascript" src="/js/cacert.bundle.js"></script>

ui/templates/client_certificate.gohtml

@@ -1,7 +1,7 @@
 {{ define "content" }}
     <main role="main" class="container">
         <h1>{{ .Title }}</h1>
-        <p>{{ .IntroText }}</p>
+        {{ .IntroText }}
         {{ with .FlashMessage }}
             <div class="alert alert-{{ .Type }}" role="alert">
                 {{ .Message }}

ui/templates/consent.gohtml

@@ -1,12 +1,12 @@
 {{ define "content" }}
     <main role="main" class="container">
         <h1 class="h3 mb-3">{{ .Title }}</h1>
-        {{ if .client.LogoUri }}
-            <p>
-                <img src="{{ .client.LogoUri }}" alt="{{ .client.ClientName }}"/>
+        {{ if .LogoURI }}
+            <p class="text-center">
+                <img src="{{ .LogoURI }}" alt="{{ .ClientName }}" width="240" height="240" />
             </p>
         {{ end }}
-        <p class="text-left">{{ .IntroConsentRequested }}</p>
+        {{ .IntroConsentRequested }}
         <form method="post">
             <ul class="list-group text-left small mb-3">
                 {{ range $i, $scope := .requestedScope }}
@@ -26,16 +26,16 @@
                     {{ end}}
                 </ul>
             {{ end }}
-            <p class="text-left">{{ .IntroMoreInformation }}</p>
+            {{ if .HasMoreInformation }}
+                {{ .IntroMoreInformation }}
+            {{ end }}
 
             {{ .csrfField }}
-            <div class="checkbox mb-3">
-                <label>
-                    <input type="checkbox" name="consent" id="consent" value="true"/>
-                    {{ .LabelConsent }}</label>
-            </div>
+            {{ .LabelConsent }}
 
-            <button class="btn btn-lg btn-primary btn-block" type="submit">{{ .LabelSubmit }}</button>
+            <button class="btn btn-primary" type="submit" name="consent"
+                    value="consent">{{ .ButtonTitleConsent }}</button>
+            <button class="btn btn-outline-secondary" type="submit" name="consent" value="deny">{{ .ButtonTitleDeny }}</button>
         </form>
     </main>
 {{ end }}

ui/templates/hydra_error.gohtml

@@ -1,10 +1,9 @@
 {{ define "content" }}
-    <div class="container">
-        <img src="/images/CAcert-logo.svg" width="300" height="68" alt="CAcert" class="mb-4">
+    <main class="container">
         <h1>{{ .Title }}</h1>
         {{ .Explanation }}
         {{ if .ErrorMessage }}
             <div class="alert alert-danger">{{ .ErrorMessage }}</div>
         {{ end }}
-    </div>
+    </main>
 {{ end }}

ui/ui.go

@@ -1,3 +1,20 @@
+/*
+Copyright CAcert Inc.
+SPDX-License-Identifier: Apache-2.0
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package ui
 
 import "embed"