feat: create-room handler, with middleware

rooms/rooms_manager.go

@@ -10,14 +10,14 @@ import (
 )
 
 type Person struct {
-	PersonId     int64
+	PersonId     int
 	Name         string
 	PasswordHash string
 }
 
 type Room struct {
 	Name         string // will be unique ID
-	AdminIds     []int64
+	AdminIds     []int
 	PasswordHash string
 	Paricipants  []Person
 	// TODO hands, for each type of hand?

routes/login_page.go

@@ -1,29 +1,82 @@
 package routes
 
 import (
+	"context"
 	"embed"
 	"fmt"
 	"html/template"
 	"log"
+	"math/rand"
 	"net/http"
+	"strconv"
 
 	"sunshine.industries/some-automoderation/rooms"
 	"sunshine.industries/some-automoderation/sessions"
 )
 
+const authCookieName = "auth"
+const loginPath = "/login"
+type contextKey string
+
+// checks sessionId from cookie
+// when non-zero session found - pass to next http.Hander
+// when no session available - render same as login page and redirect to /
+func authedPageMiddleware(
+	sessionsM sessions.SessionManagement, next http.Handler,
+) http.Handler {
+
+	returnNoAccess := func(w http.ResponseWriter, r *http.Request) {
+			log.Printf("auth middle > restricting access to %s", r.URL.Path)
+			w.Header().Add("HX-Replace-Url", loginPath)
+			renderLoginPage(w)
+	}
+	rerturnSuccess := func(w http.ResponseWriter, r *http.Request, session sessions.SessionData) {
+			ctx := context.WithValue(r.Context(), contextKey("session"), session)
+			log.Printf("auth middle > allowing access to %s for %+v", r.URL.Path, session)
+			next.ServeHTTP(w, r.WithContext(ctx))
+	}
+
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		sessionCookie, err := r.Cookie(authCookieName)
+		if err != nil {
+			returnNoAccess(w, r)
+			return
+		}
+		// TODO log here, why i get 'error readin 0'
+		sessionId, err := strconv.Atoi(sessionCookie.Value)
+		if err != nil {
+			returnNoAccess(w, r)
+			return
+		}
+		session := sessionsM.Get(sessionId)
+		if session == (sessions.SessionData{}) {
+			returnNoAccess(w, r)
+			return
+		} else {
+			rerturnSuccess(w, r, session)
+			return
+		}
+	})
+}
+
+func renderLoginPage(w http.ResponseWriter) {
+	var templFile = "templates/login.gohtml"
+	tmpl := template.Must(template.ParseFS(templateFs, templFile))
+	err := tmpl.Execute(w, nil)
+	if err != nil {
+		log.Printf("my error in executing template, huh\n %s", err)
+	}
+}
+
+// function to register all http routes for servicing auth pages and logic
 func registerLoginRoutes(
 	templateFs *embed.FS,
 	sessionSM sessions.SessionManagement,
 	roomsM rooms.RoomManager,
 ) {
 	// login page
-	http.HandleFunc("/login", func(w http.ResponseWriter, r *http.Request) {
+	http.HandleFunc(loginPath, func(w http.ResponseWriter, r *http.Request) {
-		var templFile = "templates/login.gohtml"
+		renderLoginPage(w)
-		tmpl := template.Must(template.ParseFS(templateFs, templFile))
-		err := tmpl.Execute(w, nil)
-		if err != nil {
-			log.Printf("my error in executing template, huh\n %s", err)
-		}
 	})
 
 	// when the room exists - attempt to join
@@ -49,7 +102,7 @@ func registerLoginRoutes(
 		roomId := "room-name-actually" // would be taken from rooms interface from redis
 		// would be either taken from room info on correct person pass or created
 		personId := 111
-		id, err := sessionSM.Save(roomId, int64(personId))
+		id, err := sessionSM.Save(roomId, personId)
 		if err != nil {
 			log.Printf("/login/submit > error saving session %s", err)
 		}
@@ -75,33 +128,37 @@ func registerLoginRoutes(
 		_, exists, _ := roomsM.Get(roomName)
 		if exists {
 			// TODO return anouther error notice
-			log.Printf("error, room name occupied", roomName)
+			log.Printf("error, room name occupied %s", roomName)
 			return
 		}
+		person := rooms.Person{
+			PersonId: rand.Int(),
+			Name: r.PostFormValue("personalName"),
+			PasswordHash: r.PostFormValue("personalPassword"), // TODO hash the password, not to store
+		}
 		newRoom := rooms.Room{
 			Name: roomName,
 			PasswordHash: r.PostFormValue("roomPassword"), // TODO hash the password, not to store
-			AdminIds: []int64{1},
+			AdminIds: []int{person.PersonId},
-			Paricipants: []rooms.Person{
+			Paricipants: []rooms.Person{person},
-				{
-					PersonId: 1,
-					Name: r.PostFormValue("personalName"),
-					PasswordHash: r.PostFormValue("personalPassword"),
-				},
-			},
 		}
 		err = roomsM.Save(newRoom)
-		http.SetCookie(w, &http.Cookie{
-			Name: "auth",
-			Value: "session-id",
-			Secure: true,
-			HttpOnly: true,
-			Path: "/",
-		})
 		if err != nil {
 			log.Printf("what am i to do? error saving room %s", err)
 			// todo return error notice somehow
 		}
+		newSessionId, err := sessionSM.Save(newRoom.Name, person.PersonId)
+		if err != nil {
+			log.Printf("what am i to do? error saving session %s", err)
+			// todo return error notice somehow
+		}
+		http.SetCookie(w, &http.Cookie{
+			Name: authCookieName,
+			Value: fmt.Sprint(newSessionId),
+			Secure: true,
+			HttpOnly: true,
+			Path: "/",
+		})
 		var templFile = "templates/index.gohtml"
 		tmpl := template.Must(template.ParseFS(templateFs, templFile))
 		w.Header().Add("HX-Retarget", "body")

routes/routes.go

@@ -21,14 +21,16 @@ func RegisterRoutes(sessions sessions.SessionManagement, rooms rooms.RoomManager
 	registerLoginRoutes(&templateFs, sessions, rooms)
 
 	// main page template
-	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+	http.Handle("/", authedPageMiddleware(
-		var templFile = "templates/index.gohtml"
+		sessions,
-		tmpl := template.Must(template.ParseFS(templateFs, templFile))
+		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		err := tmpl.Execute(w, nil)
+			var templFile = "templates/index.gohtml"
-		if err != nil {
+			tmpl := template.Must(template.ParseFS(templateFs, templFile))
-			log.Printf("my error in executing template, huh\n %s", err)
+			err := tmpl.Execute(w, nil)
-		}
+			if err != nil {
-	})
+				log.Printf("my error in executing template, huh\n %s", err)
+			}
+		})))
 
 	// static resources route
 	http.Handle("/static/",

sessions/sessions_manager.go

@@ -10,21 +10,21 @@ import (
 )
 
 type SessionData struct {
-	SessionId int64		 `redis:"session_id"`
+	SessionId int		 `redis:"session_id"`
 	RoomId    string	 `redis:"room_id"`
-	PersonId  int64 	`redis:"person_id"`
+	PersonId  int 	`redis:"person_id"`
 }
 
 type SessionManagement interface {
-	Get(sessionId int64) SessionData
+	Get(sessionId int) SessionData
-	Save(roomId string, personId int64) (int64, error)
+	Save(roomName string, personId int) (int, error)
 }
 
 var ctx = context.Background()
 
 const sessionPrefix = "session"
 
-func sessionIdToKey(sessionId int64) string {
+func sessionIdToKey(sessionId int) string {
 	return fmt.Sprintf("%s:%d", sessionPrefix, sessionId)
 }
 
@@ -32,21 +32,22 @@ type RedisSM struct {
 	Rdb *redis.Client
 }
 
-func (redisSM RedisSM) Get(sessionId int64) SessionData {
+func (redisSM RedisSM) Get(sessionId int) SessionData {
 	var foundSession SessionData
-	err := redisSM.Rdb.HGetAll(ctx, sessionIdToKey(sessionId)).Scan(foundSession)
+	redisKey := sessionIdToKey(sessionId)
+	err := redisSM.Rdb.HGetAll(ctx, redisKey).Scan(&foundSession)
 	if err != nil {
-		log.Printf("> error reading %d", sessionId)
+		log.Printf("> error reading %s : %s", redisKey, err)
 		return SessionData{}
 	}
 	log.Printf("> successfully found %d %+v", sessionId, foundSession)
 	return foundSession
 }
-func (redisSM RedisSM) Save(roomId string, personId int64) (int64, error) {
+func (redisSM RedisSM) Save(roomName string, personId int) (int, error) {
-	randId := rand.Int63()
+	randId := rand.Int()
 	newSession := SessionData{
 		SessionId: randId,
-		RoomId:    roomId,
+		RoomId:    roomName,
 		PersonId:  personId,
 	}
 	err := redisSM.Rdb.HSet(ctx, sessionIdToKey(randId), newSession).Err()
@@ -59,11 +60,11 @@ func (redisSM RedisSM) Save(roomId string, personId int64) (int64, error) {
 
 type DummySM struct{}
 
-func (d DummySM) Get(sessionId int64) SessionData {
+func (d DummySM) Get(sessionId int) SessionData {
 	log.Printf("get dummy session by %d", sessionId)
 	return SessionData{}
 }
-func (d DummySM) Save(roomId string, personId int64) (int64, error) {
+func (d DummySM) Save(roomName string, personId int) (int, error) {
-	log.Printf("save dummy session with %d %d", roomId, personId)
+	log.Printf("save dummy session with %s %d", roomName, personId)
 	return 1, nil
 }