#73 begin implement keycloak

go.mod

@@ -3,7 +3,9 @@ module me-fit
 go 1.22.5
 
 require (
+	github.com/NYTimes/gziphandler v1.1.1
 	github.com/a-h/templ v0.2.771
+	github.com/golang-jwt/jwt/v5 v5.2.1
 	github.com/golang-migrate/migrate/v4 v4.17.1
 	github.com/joho/godotenv v1.5.1
 	github.com/mattn/go-sqlite3 v1.14.22

go.sum

@@ -1,11 +1,16 @@
+github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
+github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
 github.com/a-h/templ v0.2.771 h1:4KH5ykNigYGGpCe0fRJ7/hzwz72k3qFqIiiLLJskbSo=
 github.com/a-h/templ v0.2.771/go.mod h1:lq48JXoUvuQrU0VThrK31yFwdRjTCnIE5bcPCM9IP1w=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+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=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk=
+github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
 github.com/golang-migrate/migrate/v4 v4.17.1 h1:4zQ6iqL6t6AiItphxJctQb3cFqWiSpMnX7wLTPnnYO4=
 github.com/golang-migrate/migrate/v4 v4.17.1/go.mod h1:m8hinFyWBn0SA4QKHuKh175Pm9wjmxj3S2Mia7dbXzM=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
@@ -37,6 +42,8 @@ github.com/prometheus/common v0.55.0 h1:KEi6DK7lXW/m7Ig5i47x0vRzuBsHuvJdi5ee6Y3G
 github.com/prometheus/common v0.55.0/go.mod h1:2SECS4xJG1kd8XF9IcM1gMX6510RAEL65zxzNImwdc8=
 github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc=
 github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=

handler.go

@@ -16,10 +16,10 @@ func getHandler(db *sql.DB) http.Handler {
 	// Serve static files (CSS, JS and images)
 	router.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./static/"))))
 
-	router.HandleFunc("/app", service.App)
+	router.HandleFunc("/app", service.WorkoutIndex)
 	router.HandleFunc("POST /api/workout", service.NewWorkout(db))
-	router.HandleFunc("GET /api/workout", service.GetWorkouts(db))
-	router.HandleFunc("DELETE /api/workout", service.DeleteWorkout(db))
+	// router.HandleFunc("GET /api/workout", service.GetWorkouts(db))
+	// router.HandleFunc("DELETE /api/workout", service.DeleteWorkout(db))
 
-	return middleware.Logging(middleware.EnableCors(router))
+	return middleware.Logging(middleware.Gzip(middleware.EnableCors(router)))
 }

main.go

@@ -20,6 +20,8 @@ func main() {
 		log.Fatal("Error loading .env file")
 	}
 
+	utils.InitializeAuth()
+
 	db, err := sql.Open("sqlite3", "./data.db")
 	if err != nil {
 		log.Fatal("Could not open Database data.db: ", err)

middleware/gzip.go

@@ -0,0 +1,11 @@
+package middleware
+
+import (
+	"net/http"
+
+	"github.com/NYTimes/gziphandler"
+)
+
+func Gzip(next http.Handler) http.Handler {
+	return gziphandler.GzipHandler(next)
+}

package-lock.json

@@ -8,6 +8,9 @@
       "name": "me-fit",
       "version": "1.0.0",
       "license": "ISC",
+      "dependencies": {
+        "keycloak-js": "^25.0.4"
+      },
       "devDependencies": {
         "daisyui": "4.12.10",
         "htmx.org": "2.0.2",
@@ -628,6 +631,28 @@
         "jiti": "bin/jiti.js"
       }
     },
+    "node_modules/js-sha256": {
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/js-sha256/-/js-sha256-0.11.0.tgz",
+      "integrity": "sha512-6xNlKayMZvds9h1Y1VWc0fQHQ82BxTXizWPEtEeGvmOUYpBRy4gbWroHLpzowe6xiQhHpelCQiE7HEdznyBL9Q=="
+    },
+    "node_modules/jwt-decode": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/jwt-decode/-/jwt-decode-4.0.0.tgz",
+      "integrity": "sha512-+KJGIyHgkGuIq3IEBNftfhW/LfWhXUIY6OmyVWjliu5KH1y0fw7VQ8YndE2O4qZdMSd9SqbnC8GOcZEy0Om7sA==",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/keycloak-js": {
+      "version": "25.0.4",
+      "resolved": "https://registry.npmjs.org/keycloak-js/-/keycloak-js-25.0.4.tgz",
+      "integrity": "sha512-LW7dVgqcBxMnnJTdmh7Zgd0NpStJnX2sCMrJGqcGtm4zmk4Rwlqk2o2uOvY7PaRHHYePXfbIwrqVhlN3GAnRCg==",
+      "dependencies": {
+        "js-sha256": "^0.11.0",
+        "jwt-decode": "^4.0.0"
+      }
+    },
     "node_modules/lilconfig": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/lilconfig/-/lilconfig-2.1.0.tgz",

package.json

@@ -4,16 +4,17 @@
   "description": "Your (almost) independent tech stack to host on a VPC.",
   "main": "index.js",
   "scripts": {
-    "build": "mkdir -p static/js && cp -f node_modules/htmx.org/dist/htmx.min.js static/js/htmx.min.js && tailwindcss build -o static/css/tailwind.css --minify",
-    "watch": "mkdir -p static/js && cp -f node_modules/htmx.org/dist/htmx.min.js static/js/htmx.min.js && tailwindcss build -o static/css/tailwind.css --watch",
-    "test": ""
+		"copy": "mkdir -p static/js && cp -f node_modules/htmx.org/dist/htmx.min.js static/js/htmx.min.js && cp -f node_modules/keycloak-js/dist/keycloak.min.js static/js/keycloak.min.js",
+    "build": "npm run copy && tailwindcss build -o static/css/tailwind.css --minify",
+    "watch": "tailwindcss build -o static/css/tailwind.css --watch"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "devDependencies": {
     "htmx.org": "2.0.2",
+    "daisyui": "4.12.10",
     "tailwindcss": "3.4.10",
-    "daisyui": "4.12.10"
+    "keycloak-js": "^25.0.4"
   }
 }

service/workout.go

@@ -2,7 +2,6 @@ package service
 
 import (
 	"me-fit/templates"
-	"me-fit/utils"
 
 	"database/sql"
 	"net/http"
@@ -23,7 +22,7 @@ var (
 	)
 )
 
-func App(w http.ResponseWriter, r *http.Request) {
+func WorkoutIndex(w http.ResponseWriter, r *http.Request) {
 	comp := templates.App()
 	layout := templates.Layout(comp)
 	layout.Render(r.Context(), w)
@@ -31,7 +30,12 @@ func App(w http.ResponseWriter, r *http.Request) {
 
 func NewWorkout(db *sql.DB) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		metrics.WithLabelValues("new").Inc()
+		// metrics.WithLabelValues("new").Inc()
+
+		// if not isAuthorized(r) {
+		// 	http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		// 	return
+		// }
 
 		var dateStr = r.FormValue("date")
 		var typeStr = r.FormValue("type")
@@ -73,66 +77,66 @@ func NewWorkout(db *sql.DB) http.HandlerFunc {
 	}
 }
 
-func GetWorkouts(db *sql.DB) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		metrics.WithLabelValues("get").Inc()
-
-		// token := r.Context().Value(middleware.TOKEN_KEY).(*auth.Token)
-		// var userId = token.UID
-		var userId = ""
-
-		rows, err := db.Query("SELECT rowid, date, type, sets, reps FROM workout WHERE user_id = ?", userId)
-		if err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		var workouts = make([]map[string]interface{}, 0)
-		for rows.Next() {
-			var id int
-			var date string
-			var workoutType string
-			var sets int
-			var reps int
-
-			err = rows.Scan(&id, &date, &workoutType, &sets, &reps)
-			if err != nil {
-				http.Error(w, err.Error(), http.StatusInternalServerError)
-				return
-			}
-
-			workout := map[string]interface{}{
-				"id":   id,
-				"date": date,
-				"type": workoutType,
-				"sets": sets,
-				"reps": reps,
-			}
-			workouts = append(workouts, workout)
-		}
-
-		utils.WriteJSON(w, workouts)
-	}
-}
-
-func DeleteWorkout(db *sql.DB) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		metrics.WithLabelValues("delete").Inc()
-
-		// token := r.Context().Value(middleware.TOKEN_KEY).(*auth.Token)
-		// var userId = token.UID
-		var userId = ""
-
-		rowId := r.FormValue("id")
-		if rowId == "" {
-			http.Error(w, "Missing required fields", http.StatusBadRequest)
-			return
-		}
-
-		_, err := db.Exec("DELETE FROM workout WHERE user_id = ? AND rowid = ?", userId, rowId)
-		if err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-	}
-}
+// func GetWorkouts(db *sql.DB) http.HandlerFunc {
+// 	return func(w http.ResponseWriter, r *http.Request) {
+// 		metrics.WithLabelValues("get").Inc()
+//
+// 		// token := r.Context().Value(middleware.TOKEN_KEY).(*auth.Token)
+// 		// var userId = token.UID
+// 		var userId = ""
+//
+// 		rows, err := db.Query("SELECT rowid, date, type, sets, reps FROM workout WHERE user_id = ?", userId)
+// 		if err != nil {
+// 			http.Error(w, err.Error(), http.StatusInternalServerError)
+// 			return
+// 		}
+//
+// 		var workouts = make([]map[string]interface{}, 0)
+// 		for rows.Next() {
+// 			var id int
+// 			var date string
+// 			var workoutType string
+// 			var sets int
+// 			var reps int
+//
+// 			err = rows.Scan(&id, &date, &workoutType, &sets, &reps)
+// 			if err != nil {
+// 				http.Error(w, err.Error(), http.StatusInternalServerError)
+// 				return
+// 			}
+//
+// 			workout := map[string]interface{}{
+// 				"id":   id,
+// 				"date": date,
+// 				"type": workoutType,
+// 				"sets": sets,
+// 				"reps": reps,
+// 			}
+// 			workouts = append(workouts, workout)
+// 		}
+//
+// 		utils.WriteJSON(w, workouts)
+// 	}
+// }
+//
+// func DeleteWorkout(db *sql.DB) http.HandlerFunc {
+// 	return func(w http.ResponseWriter, r *http.Request) {
+// 		metrics.WithLabelValues("delete").Inc()
+//
+// 		// token := r.Context().Value(middleware.TOKEN_KEY).(*auth.Token)
+// 		// var userId = token.UID
+// 		var userId = ""
+//
+// 		rowId := r.FormValue("id")
+// 		if rowId == "" {
+// 			http.Error(w, "Missing required fields", http.StatusBadRequest)
+// 			return
+// 		}
+//
+// 		_, err := db.Exec("DELETE FROM workout WHERE user_id = ? AND rowid = ?", userId, rowId)
+// 		if err != nil {
+// 			http.Error(w, err.Error(), http.StatusInternalServerError)
+// 			return
+// 		}
+// 	}
+// }

static/js/layout.js

@@ -0,0 +1,23 @@
+
+const keycloak = new Keycloak({
+	url: 'https://auth.me-fit.eu',
+	realm: 'me-fit',
+	clientId: 'me-fit'
+});
+
+async function initKeycloak() {
+	try {
+		const authenticated = await keycloak.init({
+			checkLoginIframe: false,
+		});
+		console.log(`User is ${authenticated ? 'authenticated' : 'not authenticated'}`);
+		console.log({ keycloak });
+	} catch (error) {
+		console.error('Failed to initialize adapter:', error);
+	}
+};
+initKeycloak();
+
+async function login() {
+	await keycloak.login();
+};

templates/header.templ

@@ -7,6 +7,6 @@ templ header() {
 			<span>ME-FIT</span>
 		</a>
 		<a href="/signup" class="btn btn-sm">Sign Up</a>
-		<a href="/signin" class="btn btn-sm">Sign In</a>
+		<button class="btn btn-sm" onclick="login()">Sign In</button>
 	</div>
 }

templates/layout.templ

@@ -10,6 +10,8 @@ templ Layout(comp templ.Component) {
 			<link rel="stylesheet" href="static/css/tailwind.css"/>
 			<meta name="viewport" content="width=device-width, initial-scale=1"/>
 			<script defer src="https://umami.me-fit.eu/script.js" data-website-id="3c8efb09-44e4-4372-8a1e-c3bc675cd89a"></script>
+			<script src="static/js/keycloak.min.js"></script>
+			<script src="static/js/layout.js"></script>
 		</head>
 		<body>
 			<div class="h-screen flex flex-col">

utils/auth.go

@@ -1,9 +1,65 @@
 package utils
 
-// import (
-// 	"context"
-// 	"log"
-// )
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"log"
+	"net/http"
+	"strings"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+func InitializeAuth() {
+	resp, err := http.Get("https://auth.me-fit.eu/realms/me-fit/protocol/openid-connect/certs")
+	if err != nil {
+		log.Fatalf("error getting certs: %v\n", err)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatalf("error reading body: %v\n", err)
+	}
+
+	var certs map[string]interface{}
+
+	err = json.Unmarshal(body, &certs)
+	if err != nil {
+		log.Fatalf("error unmarshalling certs: %v\n", err)
+	}
+
+	log.Println("initialized auth", certs["keys"].([]interface{})[0].(map[string]interface{})["kid"])
+}
+
+func keyFunc() jwt.Keyfunc {
+	return func(token *jwt.Token) (interface{}, error) {
+		return []byte("secret"), nil
+	}
+}
+
+func isAuthorized(r *http.Request) (*jwt.Token, error) {
+	auth := r.Header.Get("Authorization")
+	if auth == "" {
+		return nil, errors.New("no authorization header")
+	}
+
+	tokenStr := strings.Split(auth, " ")[1]
+	if tokenStr == "" {
+		return nil, errors.New("no authorization header")
+	}
+
+	token, err := jwt.Parse(tokenStr, keyFunc(), nil)
+	if err != nil {
+		return nil, errors.New("no authorization header")
+	}
+
+	if !token.Valid {
+		return nil, errors.New("no authorization header")
+	}
+
+	return token, nil
+}
 
 // func VerifyToken(token string) (*auth.Token, error) {
 // 	if app == nil {