Dockerfile

@@ -6,7 +6,9 @@ COPY polyculeconnect ./
 RUN make build
 
 # Replace with from scratch later on
-FROM --platform=$TARGETPLATFORM alpine:latest
+FROM --platform=$TARGETPLATFORM debian:latest
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get -qq install ca-certificates
 WORKDIR /root
 COPY --from=builder go/src/git.faercol.me/polyculeconnect/build/polyculeconnect ./
 ADD polyculeconnect/robots.txt /root/
@@ -16,4 +18,4 @@ ADD polyculeconnect/templates /root/templates/
 VOLUME [ "/config" ]
 
 ENTRYPOINT [ "./polyculeconnect" ]
-CMD [ "-config", "/config/config.json" ]
+CMD [ "serve", "--config", "/config/config.json" ]

polyculeconnect/cmd/root.go

@@ -0,0 +1,42 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+// rootCmd represents the base command when called without any subcommands
+var rootCmd = &cobra.Command{
+	Use:   "polyculeconnect",
+	Short: "You're in their DMs, I'm in their SSO",
+	Long: `PolyculeConnect is a SSO OpenIDConnect provider which allows multiple authentication backends,
+and enables authentication federation among several infrastructures.`,
+	// Uncomment the following line if your bare application
+	// has an action associated with it:
+	// Run: func(cmd *cobra.Command, args []string) { },
+}
+
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+	err := rootCmd.Execute()
+	if err != nil {
+		os.Exit(1)
+	}
+}
+
+func init() {
+	// Here you will define your flags and configuration settings.
+	// Cobra supports persistent flags, which, if defined here,
+	// will be global for your application.
+
+	// rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.polyculeconnect.yaml)")
+
+	// Cobra also supports local flags, which will only run
+	// when this action is called directly.
+	// rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+
+	// Disable the default `completion` command to generate the autocompletion files
+	rootCmd.Root().CompletionOptions.DisableDefaultCmd = true
+}

polyculeconnect/cmd/serve.go

@@ -0,0 +1,155 @@
+package cmd
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"time"
+
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/config"
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/connector"
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/logger"
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/server"
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/services"
+	"github.com/dexidp/dex/connector/oidc"
+	dex_server "github.com/dexidp/dex/server"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/spf13/cobra"
+)
+
+var configPath string
+
+const stopTimeout = 10 * time.Second
+
+// serveCmd represents the serve command
+var serveCmd = &cobra.Command{
+	Use:   "serve",
+	Short: "Start the web server",
+	Long: `Start the PolyculeConnect web server using the configuration defined through environment
+variables`,
+	Run: func(cmd *cobra.Command, args []string) {
+		serve()
+	},
+}
+
+func serve() {
+	mainCtx, cancel := context.WithCancel(context.Background())
+
+	conf, err := config.New(configPath)
+	if err != nil {
+		panic(err)
+	}
+
+	logger.Init(conf.LogLevel)
+	logger.L.Infof("Initialized logger with level %v", conf.LogLevel)
+
+	storageType, err := services.InitStorage(conf)
+	if err != nil {
+		logger.L.Fatalf("Failed to initialize storage backend: %s", err.Error())
+	}
+	logger.L.Infof("Initialized storage backend %q", conf.StorageType)
+	dexConf := dex_server.Config{
+		Web: dex_server.WebConfig{
+			Dir:   "./",
+			Theme: "default",
+		},
+		Storage:                storageType,
+		Issuer:                 conf.OpenConnectConfig.Issuer,
+		SupportedResponseTypes: []string{"code"},
+		SkipApprovalScreen:     false,
+		AllowedOrigins:         []string{"*"},
+		Logger:                 logger.L,
+		PrometheusRegistry:     prometheus.NewRegistry(),
+	}
+
+	logger.L.Info("Initializing authentication backends")
+
+	dex_server.ConnectorsConfig["refuseAll"] = func() dex_server.ConnectorConfig { return new(connector.RefuseAllConfig) }
+	connectors, err := dexConf.Storage.ListConnectors()
+	if err != nil {
+		logger.L.Fatalf("Failed to get existing connectors: %s", err.Error())
+	}
+	var connectorIDs []string
+	for _, conn := range connectors {
+		connectorIDs = append(connectorIDs, conn.ID)
+	}
+
+	backend := config.BackendConfig{
+		Config: &oidc.Config{},
+		Name:   "RefuseAll",
+		ID:     "null",
+		Type:   "refuseAll",
+	}
+
+	if err := services.CreateConnector(&backend, &dexConf, connectorIDs); err != nil {
+		logger.L.Errorf("Failed to add connector for backend RefuseAll to stage: %s", err.Error())
+	}
+
+	for _, backend := range conf.OpenConnectConfig.BackendConfigs {
+		if err := services.CreateConnector(backend, &dexConf, connectorIDs); err != nil {
+			logger.L.Errorf("Failed to add connector for backend %q to stage: %s", backend.Name, err.Error())
+			continue
+		}
+	}
+
+	logger.L.Info("Initializing clients")
+	for _, client := range conf.OpenConnectConfig.ClientConfigs {
+		if err := dexConf.Storage.CreateClient(*client); err != nil {
+			logger.L.Errorf("Failed to add client to storage: %s", err.Error())
+		}
+	}
+
+	dexSrv, err := dex_server.NewServer(mainCtx, dexConf)
+	if err != nil {
+		logger.L.Fatalf("Failed to init dex server: %s", err.Error())
+	}
+
+	logger.L.Info("Initializing server")
+	s, err := server.New(conf, dexSrv, logger.L)
+	if err != nil {
+		logger.L.Fatalf("Failed to initialize server: %s", err.Error())
+	}
+
+	go s.Run(mainCtx)
+
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+
+	logger.L.Info("Application successfully started")
+
+	logger.L.Debug("Waiting for stop signal")
+	select {
+	case <-s.Done():
+		logger.L.Fatal("Unexpected exit from server")
+	case <-c:
+		logger.L.Info("Stopping main application")
+		cancel()
+	}
+
+	logger.L.Debugf("Waiting %v for all daemons to stop", stopTimeout)
+	select {
+	case <-time.After(stopTimeout):
+		logger.L.Fatalf("Failed to stop all daemons in the expected time")
+	case <-s.Done():
+		logger.L.Info("web server successfully stopped")
+	}
+
+	logger.L.Info("Application successfully stopped")
+	os.Exit(0)
+
+}
+
+func init() {
+	rootCmd.AddCommand(serveCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// serveCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// serveCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+	serveCmd.Flags().StringVarP(&configPath, "config", "c", "config.json", "Path to the JSON configuration file")
+}

polyculeconnect/go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/dexidp/dex v0.0.0-20231014000322-089f374d4f3e
 	github.com/prometheus/client_golang v1.17.0
 	github.com/sirupsen/logrus v1.9.3
+	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.8.4
 )
 
@@ -38,6 +39,7 @@ require (
 	github.com/gorilla/mux v1.8.0 // indirect
 	github.com/huandu/xstrings v1.3.3 // indirect
 	github.com/imdario/mergo v0.3.11 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jonboulle/clockwork v0.2.2 // indirect
 	github.com/lib/pq v1.10.9 // indirect
 	github.com/mattermost/xml-roundtrip-validator v0.1.0 // indirect
@@ -53,6 +55,7 @@ require (
 	github.com/russellhaering/goxmldsig v1.4.0 // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect
 	github.com/spf13/cast v1.4.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	golang.org/x/crypto v0.14.0 // indirect
 	golang.org/x/exp v0.0.0-20221004215720-b9f4876ce741 // indirect

polyculeconnect/go.sum

@@ -28,6 +28,7 @@ github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDk
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/coreos/go-oidc/v3 v3.6.0 h1:AKVxfYw1Gmkn/w96z0DbT/B/xFnzTd3MkZvWLjF4n/o=
 github.com/coreos/go-oidc/v3 v3.6.0/go.mod h1:ZpHUsHBucTUj6WOkrP4E20UPynbLZzhTQ1XKCXkxyPc=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -97,6 +98,8 @@ github.com/huandu/xstrings v1.3.3 h1:/Gcsuc1x8JVbJ9/rlye4xZnVAbEkGauT8lbebqcQws4
 github.com/huandu/xstrings v1.3.3/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/imdario/mergo v0.3.11 h1:3tnifQM4i+fbajXKBHXWEH+KvNHqojZ778UH75j3bGA=
 github.com/imdario/mergo v0.3.11/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ=
 github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@@ -140,6 +143,7 @@ github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6po
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
 github.com/russellhaering/goxmldsig v1.4.0 h1:8UcDh/xGyQiyrW+Fq5t8f+l2DLB1+zlhYzkPUJ7Qhys=
 github.com/russellhaering/goxmldsig v1.4.0/go.mod h1:gM4MDENBQf7M+V824SGfyIUVFWydB7n0KkEubVJl+Tw=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXYbsQ=
 github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
@@ -147,6 +151,10 @@ github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVs
 github.com/spf13/cast v1.3.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/cast v1.4.1 h1:s0hze+J0196ZfEMTs80N7UlFt0BDuQ7Q+JDnHiMWKdA=
 github.com/spf13/cast v1.4.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
+github.com/spf13/cobra v1.7.0 h1:hyqWnYt1ZQShIddO5kBpj3vu05/++x6tJ6dg8EC572I=
+github.com/spf13/cobra v1.7.0/go.mod h1:uLxZILRyS/50WlhOIKD7W6V5bgeIt+4sICxh6uRMrb0=
+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 v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=

polyculeconnect/main.go

@@ -1,185 +1,7 @@
 package main
 
-import (
-	"context"
-	"encoding/json"
-	"flag"
-	"fmt"
-	"os"
-	"os/signal"
-	"time"
-
-	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/config"
-	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/connector"
-	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/logger"
-	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/server"
-	"github.com/dexidp/dex/connector/oidc"
-	dex_server "github.com/dexidp/dex/server"
-	"github.com/dexidp/dex/storage"
-	"github.com/dexidp/dex/storage/memory"
-	"github.com/dexidp/dex/storage/sql"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-const stopTimeout = 10 * time.Second
-
-type cliArgs struct {
-	configPath string
-}
-
-func parseArgs() *cliArgs {
-	configPath := flag.String("config", "", "Path to the JSON configuration file")
-
-	flag.Parse()
-
-	return &cliArgs{
-		configPath: *configPath,
-	}
-}
-
-func initStorage(conf *config.AppConfig) (storage.Storage, error) {
-	var storageType storage.Storage
-	var err error
-	switch conf.StorageType {
-	case "memory":
-		storageType = memory.New(logger.L)
-	case "sqlite":
-		sqlconfig := sql.SQLite3{
-			File: conf.StorageConfig.File,
-		}
-		storageType, err = sqlconfig.Open(logger.L)
-		if err != nil {
-			logger.L.Fatalf("Failed to initialize sqlite backend: %s", err.Error())
-		}
-	default:
-		return storageType, fmt.Errorf("unsupported storage backend type: %s", conf.StorageType)
-	}
-	return storageType, nil
-}
-
-func createConnector(backend *config.BackendConfig, dexConf *dex_server.Config, connectorIDs []string) error {
-	for _, id := range connectorIDs {
-		if id == backend.ID {
-			return nil
-		}
-	}
-
-	backendConfJson, err := json.Marshal(backend.Config)
-	if err != nil {
-		return fmt.Errorf("failed to serialize oidc config for backend %q: %s", backend.Name, err.Error())
-	}
-	return dexConf.Storage.CreateConnector(storage.Connector{
-		ID:     backend.ID,
-		Name:   backend.Name,
-		Type:   string(backend.Type),
-		Config: backendConfJson,
-	})
-}
+import "git.faercol.me/faercol/polyculeconnect/polyculeconnect/cmd"
 
 func main() {
-	args := parseArgs()
-
-	mainCtx, cancel := context.WithCancel(context.Background())
-
-	conf, err := config.New(args.configPath)
-	if err != nil {
-		panic(err)
-	}
-
-	logger.Init(conf.LogLevel)
-	logger.L.Infof("Initialized logger with level %v", conf.LogLevel)
-
-	storageType, err := initStorage(conf)
-	if err != nil {
-		logger.L.Fatalf("Failed to initialize storage backend: %s", err.Error())
-	}
-	logger.L.Infof("Initialized storage backend %q", conf.StorageType)
-	dexConf := dex_server.Config{
-		Web: dex_server.WebConfig{
-			Dir:   "./",
-			Theme: "default",
-		},
-		Storage:                storageType,
-		Issuer:                 conf.OpenConnectConfig.Issuer,
-		SupportedResponseTypes: []string{"code"},
-		SkipApprovalScreen:     false,
-		AllowedOrigins:         []string{"*"},
-		Logger:                 logger.L,
-		PrometheusRegistry:     prometheus.NewRegistry(),
-	}
-
-	logger.L.Info("Initializing authentication backends")
-
-	dex_server.ConnectorsConfig["refuseAll"] = func() dex_server.ConnectorConfig { return new(connector.RefuseAllConfig) }
-	connectors, err := dexConf.Storage.ListConnectors()
-	if err != nil {
-		logger.L.Fatalf("Failed to get existing connectors: %s", err.Error())
-	}
-	var connectorIDs []string
-	for _, conn := range connectors {
-		connectorIDs = append(connectorIDs, conn.ID)
-	}
-
-	backend := config.BackendConfig{
-		Config: &oidc.Config{},
-		Name:   "RefuseAll",
-		ID:     "null",
-		Type:   "refuseAll",
-	}
-
-	if err := createConnector(&backend, &dexConf, connectorIDs); err != nil {
-		logger.L.Errorf("Failed to add connector for backend RefuseAll to stage: %s", err.Error())
-	}
-
-	for _, backend := range conf.OpenConnectConfig.BackendConfigs {
-		if err := createConnector(backend, &dexConf, connectorIDs); err != nil {
-			logger.L.Errorf("Failed to add connector for backend %q to stage: %s", backend.Name, err.Error())
-			continue
-		}
-	}
-
-	logger.L.Info("Initializing clients")
-	for _, client := range conf.OpenConnectConfig.ClientConfigs {
-		if err := dexConf.Storage.CreateClient(*client); err != nil {
-			logger.L.Errorf("Failed to add client to storage: %s", err.Error())
-		}
-	}
-
-	dexSrv, err := dex_server.NewServer(mainCtx, dexConf)
-	if err != nil {
-		logger.L.Fatalf("Failed to init dex server: %s", err.Error())
-	}
-
-	logger.L.Info("Initializing server")
-	s, err := server.New(conf, dexSrv, logger.L)
-	if err != nil {
-		logger.L.Fatalf("Failed to initialize server: %s", err.Error())
-	}
-
-	go s.Run(mainCtx)
-
-	c := make(chan os.Signal, 1)
-	signal.Notify(c, os.Interrupt)
-
-	logger.L.Info("Application successfully started")
-
-	logger.L.Debug("Waiting for stop signal")
-	select {
-	case <-s.Done():
-		logger.L.Fatal("Unexpected exit from server")
-	case <-c:
-		logger.L.Info("Stopping main application")
-		cancel()
-	}
-
-	logger.L.Debugf("Waiting %v for all daemons to stop", stopTimeout)
-	select {
-	case <-time.After(stopTimeout):
-		logger.L.Fatalf("Failed to stop all daemons in the expected time")
-	case <-s.Done():
-		logger.L.Info("web server successfully stopped")
-	}
-
-	logger.L.Info("Application successfully stopped")
-	os.Exit(0)
+	cmd.Execute()
 }

polyculeconnect/services/connector.go

@@ -0,0 +1,29 @@
+package services
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/config"
+	dex_server "github.com/dexidp/dex/server"
+	"github.com/dexidp/dex/storage"
+)
+
+func CreateConnector(backend *config.BackendConfig, dexConf *dex_server.Config, connectorIDs []string) error {
+	for _, id := range connectorIDs {
+		if id == backend.ID {
+			return nil
+		}
+	}
+
+	backendConfJson, err := json.Marshal(backend.Config)
+	if err != nil {
+		return fmt.Errorf("failed to serialize oidc config for backend %q: %s", backend.Name, err.Error())
+	}
+	return dexConf.Storage.CreateConnector(storage.Connector{
+		ID:     backend.ID,
+		Name:   backend.Name,
+		Type:   string(backend.Type),
+		Config: backendConfJson,
+	})
+}

polyculeconnect/services/storage.go

@@ -0,0 +1,31 @@
+package services
+
+import (
+	"fmt"
+
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/config"
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/logger"
+	"github.com/dexidp/dex/storage"
+	"github.com/dexidp/dex/storage/memory"
+	"github.com/dexidp/dex/storage/sql"
+)
+
+func InitStorage(conf *config.AppConfig) (storage.Storage, error) {
+	var storageType storage.Storage
+	var err error
+	switch conf.StorageType {
+	case "memory":
+		storageType = memory.New(logger.L)
+	case "sqlite":
+		sqlconfig := sql.SQLite3{
+			File: conf.StorageConfig.File,
+		}
+		storageType, err = sqlconfig.Open(logger.L)
+		if err != nil {
+			logger.L.Fatalf("Failed to initialize sqlite backend: %s", err.Error())
+		}
+	default:
+		return storageType, fmt.Errorf("unsupported storage backend type: %s", conf.StorageType)
+	}
+	return storageType, nil
+}