Use UUID

go.mod

@@ -11,6 +11,7 @@ require (
 
 require (
 	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
+	github.com/google/uuid v1.3.0 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/jinzhu/copier v0.3.5 // indirect
 	github.com/labstack/gommon v0.3.1 // indirect

go.sum

@@ -7,6 +7,8 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
 github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=

pkg/auth/authenticator.go

@@ -1,10 +1,12 @@
 package auth
 
 import (
+	"encoding/hex"
 	"errors"
 	"io"
 	"net/http"
 
+	"github.com/google/uuid"
 	"github.com/labstack/echo/v4"
 	"github.com/rs/zerolog/log"
 
@@ -19,9 +21,24 @@ var (
 
 type Authenticator struct {
 	Flows     FlowStore
+	Sessions  SessionStore
 	Providers map[string]AuthProvider
 }
 
+func (a *Authenticator) InstallRoutes(e *echo.Echo) {
+	authG := e.Group("/auth")
+	authG.GET("/authorize", a.AuthorizeHandler)
+	authG.GET("/providers", a.ProvidersHandler)
+	authG.POST("/token", a.TokenHandler)
+
+	authG.POST("/login_flow", a.BeginLoginFlowHandler)
+
+	loginFlow := authG.Group("/login_flow") // TODO: add IP address affinity middleware
+	loginFlow.POST("/:flow_id", a.LoginFlowHandler)
+	loginFlow.DELETE("/:flow_id", a.LoginFlowDeleteHandler)
+
+}
+
 func (a *Authenticator) Provider(name string) AuthProvider {
 	p, ok := a.Providers[name]
 	if !ok {
@@ -33,6 +50,7 @@ func (a *Authenticator) Provider(name string) AuthProvider {
 
 func (a *Authenticator) InitAuth(s storage.Store) error {
 	a.Flows = make(FlowStore)
+	a.Sessions = make(SessionStore)
 	hap, err := NewHAProvider(s)
 	if err != nil {
 		return err
@@ -118,3 +136,10 @@ func (a *Authenticator) Check(f *Flow, rm map[string]interface{}) error {
 
 	return ErrInvalidAuth
 }
+
+func genUUID() string {
+	// must be addressable
+	u := uuid.New()
+
+	return hex.EncodeToString(u[:])
+}

pkg/auth/flow.go

@@ -1,8 +1,6 @@
 package auth
 
 import (
-	"crypto/rand"
-	"encoding/hex"
 	"net/http"
 	"strings"
 	"time"
@@ -59,15 +57,6 @@ func (f *Flow) touch() {
 	f.ctime = time.Now()
 }
 
-func genFlowID() FlowID {
-	b := make([]byte, 16)
-	if _, err := rand.Read(b); err != nil {
-		panic(err)
-	}
-
-	return FlowID(hex.EncodeToString(b))
-}
-
 func (fs FlowStore) register(f *Flow) {
 	fs.cull()
 	fs[f.ID] = f
@@ -116,7 +105,7 @@ func (a *Authenticator) NewFlow(r *FlowRequest) *Flow {
 
 	flow := &Flow{
 		Type:    TypeForm,
-		ID:      genFlowID(),
+		ID:      FlowID(genUUID()),
 		StepID:  stepPtr(StepInit),
 		Schema:  sch,
 		Handler: r.Handler,
@@ -164,7 +153,7 @@ func (f *Flow) progress(a *Authenticator, c echo.Context) error {
 			var finishedFlow struct {
 				ID      FlowID    `json:"flow_id"`
 				Handler []*string `json:"handler"`
-				Result  string    `json:"result"`
+				Result  TokenID   `json:"result"`
 				Title   string    `json:"title"`
 				Type    FlowType  `json:"type"`
 				Version int       `json:"version"`
@@ -175,6 +164,7 @@ func (f *Flow) progress(a *Authenticator, c echo.Context) error {
 			finishedFlow.Type = TypeCreateEntry
 			finishedFlow.Title = common.AppName
 			finishedFlow.Version = 1
+			finishedFlow.Result = a.NewToken(c.Request(), f)
 
 			f.redirect(c)
 
@@ -250,15 +240,6 @@ func (a *Authenticator) LoginFlowHandler(c echo.Context) error {
 	return flow.progress(a, c)
 }
 
-func (a *Authenticator) InstallRoutes(e *echo.Echo) {
+func (a *Authenticator) TokenHandler(c echo.Context) error {
-	authG := e.Group("/auth")
+	return c.String(http.StatusOK, "token good I guess")
-	authG.GET("/authorize", a.AuthorizeHandler)
-	authG.GET("/providers", a.ProvidersHandler)
-
-	authG.POST("/login_flow", a.BeginLoginFlowHandler)
-
-	loginFlow := authG.Group("/login_flow") // TODO: add IP address affinity middleware
-	loginFlow.POST("/:flow_id", a.LoginFlowHandler)
-	loginFlow.DELETE("/:flow_id", a.LoginFlowDeleteHandler)
-
 }