Prebuild templates (base.html + content) at startup to avoid a file parse every page load

README.md

@@ -39,10 +39,13 @@ fine with getting your hands dirty, but I plan on having it ready to go for more
 ## How to use 🤔
 
 1. Clone
-2. Run `go get` to install dependencies
+2. Delete the git folder, so you can start tracking in your own repo
-3. Copy env_example.json to env.json and fill in the values
+3. Run `go get` to install dependencies
-4. Run `go run main.go` to start the server
+4. Copy env_example.json to env.json and fill in the values
-5. Start building your app!
+5. Run `go run main.go` to start the server
+6. Rename the occurences of "GoWeb" to your app name
+7. Start building your app!
+8. When you see useful changes to GoWeb you'd like in your project copy them over
 
 ## How to contribute 👨‍💻
 

app/schedule.go

@@ -17,8 +17,8 @@ type Scheduled struct {
 }
 
 type Task struct {
-	Interval time.Duration
 	Funcs    []func(app *App)
+	Interval time.Duration
 }
 
 func RunScheduledTasks(app *App, poolSize int, stop <-chan struct{}) {
@@ -27,13 +27,13 @@ func RunScheduledTasks(app *App, poolSize int, stop <-chan struct{}) {
 	}
 
 	tasks := []Task{
-		{Interval: time.Second, Funcs: app.ScheduledTasks.EverySecond},
+		{Funcs: app.ScheduledTasks.EverySecond, Interval: time.Second},
-		{Interval: time.Minute, Funcs: app.ScheduledTasks.EveryMinute},
+		{Funcs: app.ScheduledTasks.EveryMinute, Interval: time.Minute},
-		{Interval: time.Hour, Funcs: app.ScheduledTasks.EveryHour},
+		{Funcs: app.ScheduledTasks.EveryHour, Interval: time.Hour},
-		{Interval: 24 * time.Hour, Funcs: app.ScheduledTasks.EveryDay},
+		{Funcs: app.ScheduledTasks.EveryDay, Interval: 24 * time.Hour},
-		{Interval: 7 * 24 * time.Hour, Funcs: app.ScheduledTasks.EveryWeek},
+		{Funcs: app.ScheduledTasks.EveryWeek, Interval: 7 * 24 * time.Hour},
-		{Interval: 30 * 24 * time.Hour, Funcs: app.ScheduledTasks.EveryMonth},
+		{Funcs: app.ScheduledTasks.EveryMonth, Interval: 30 * 24 * time.Hour},
-		{Interval: 365 * 24 * time.Hour, Funcs: app.ScheduledTasks.EveryYear},
+		{Funcs: app.ScheduledTasks.EveryYear, Interval: 365 * 24 * time.Hour},
 	}
 
 	var wg sync.WaitGroup

config/config.go

@@ -3,7 +3,7 @@ package config
 import (
 	"encoding/json"
 	"flag"
-	"log"
+	"log/slog"
 	"os"
 )
 
@@ -24,6 +24,7 @@ type Configuration struct {
 
 	Template struct {
 		BaseName    string `json:"BaseTemplateName"`
+		ContentPath string `json:"ContentPath"`
 	}
 }
 
@@ -33,13 +34,13 @@ func LoadConfig() Configuration {
 	flag.Parse()
 	file, err := os.Open(*c)
 	if err != nil {
-		log.Fatal("Unable to open JSON config file: ", err)
+		panic("unable to open JSON config file: " + err.Error())
 	}
 
 	defer func(file *os.File) {
 		err := file.Close()
 		if err != nil {
-			log.Fatal("Unable to close JSON config file: ", err)
+			slog.Error("unable to close JSON config file: ", err)
 		}
 	}(file)
 
@@ -47,7 +48,7 @@ func LoadConfig() Configuration {
 	Config := Configuration{}
 	err = decoder.Decode(&Config)
 	if err != nil {
-		log.Fatal("Unable to decode JSON config file: ", err)
+		panic("unable to decode JSON config file: " + err.Error())
 	}
 
 	return Config

controllers/get.go

@@ -22,7 +22,7 @@ func (g *Get) ShowHome(w http.ResponseWriter, _ *http.Request) {
 		Test: "Hello World!",
 	}
 
-	templating.RenderTemplate(g.App, w, "templates/pages/home.html", data)
+	templating.RenderTemplate(w, "templates/pages/home.html", data)
 }
 
 func (g *Get) ShowRegister(w http.ResponseWriter, r *http.Request) {
@@ -39,7 +39,7 @@ func (g *Get) ShowRegister(w http.ResponseWriter, r *http.Request) {
 		CsrfToken: CsrfToken,
 	}
 
-	templating.RenderTemplate(g.App, w, "templates/pages/register.html", data)
+	templating.RenderTemplate(w, "templates/pages/register.html", data)
 }
 
 func (g *Get) ShowLogin(w http.ResponseWriter, r *http.Request) {
@@ -56,7 +56,7 @@ func (g *Get) ShowLogin(w http.ResponseWriter, r *http.Request) {
 		CsrfToken: CsrfToken,
 	}
 
-	templating.RenderTemplate(g.App, w, "templates/pages/login.html", data)
+	templating.RenderTemplate(w, "templates/pages/login.html", data)
 }
 
 func (g *Get) Logout(w http.ResponseWriter, r *http.Request) {

controllers/post.go

@@ -3,7 +3,7 @@ package controllers
 import (
 	"GoWeb/app"
 	"GoWeb/models"
-	"log"
+	"log/slog"
 	"net/http"
 	"time"
 )
@@ -19,15 +19,12 @@ func (p *Post) Login(w http.ResponseWriter, r *http.Request) {
 	remember := r.FormValue("remember") == "on"
 
 	if username == "" || password == "" {
-		log.Println("Tried to login user with empty username or password")
+		http.Redirect(w, r, "/login", http.StatusUnauthorized)
-		http.Redirect(w, r, "/login", http.StatusFound)
 	}
 
 	_, err := models.AuthenticateUser(p.App, w, username, password, remember)
 	if err != nil {
-		log.Println("Error authenticating user")
+		http.Redirect(w, r, "/login", http.StatusUnauthorized)
-		log.Println(err)
-		http.Redirect(w, r, "/login", http.StatusFound)
 		return
 	}
 
@@ -41,15 +38,14 @@ func (p *Post) Register(w http.ResponseWriter, r *http.Request) {
 	updatedAt := time.Now()
 
 	if username == "" || password == "" {
-		log.Println("Tried to create user with empty username or password")
+		http.Redirect(w, r, "/register", http.StatusUnauthorized)
-		http.Redirect(w, r, "/register", http.StatusFound)
 	}
 
 	_, err := models.CreateUser(p.App, username, password, createdAt, updatedAt)
 	if err != nil {
-		log.Println("Error creating user")
+		// TODO: if err == bcrypt.ErrPasswordTooLong display error to user, this will require a flash message system with cookies
-		log.Println(err)
+		slog.Error("error creating user: " + err.Error())
-		return
+		http.Redirect(w, r, "/register", http.StatusInternalServerError)
 	}
 
 	http.Redirect(w, r, "/login", http.StatusFound)

database/connection.go

@@ -5,29 +5,26 @@ import (
 	"database/sql"
 	"fmt"
 	_ "github.com/lib/pq"
-	"log"
+	"log/slog"
 )
 
 // Connect returns a new database connection
 func Connect(app *app.App) *sql.DB {
-	// Set connection parameters from config
 	postgresConfig := fmt.Sprintf("host=%s port=%s user=%s "+
 		"password=%s dbname=%s sslmode=disable",
 		app.Config.Db.Ip, app.Config.Db.Port, app.Config.Db.User, app.Config.Db.Password, app.Config.Db.Name)
 
-	// Create connection
 	db, err := sql.Open("postgres", postgresConfig)
 	if err != nil {
 		panic(err)
 	}
 
-	// Test connection
 	err = db.Ping()
 	if err != nil {
 		panic(err)
 	}
 
-	log.Println("Connected to database successfully on " + app.Config.Db.Ip + ":" + app.Config.Db.Port + " using database " + app.Config.Db.Name)
+	slog.Info("connected to database successfully on " + app.Config.Db.Ip + ":" + app.Config.Db.Port + " using database " + app.Config.Db.Name)
 
 	return db
 }

database/migrate.go

@@ -5,7 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"github.com/lib/pq"
-	"log"
+	"log/slog"
 	"reflect"
 )
 
@@ -39,23 +39,23 @@ func createTable(app *app.App, tableName string) error {
 	var tableExists bool
 	err := app.Db.QueryRow("SELECT EXISTS (SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE c.relname ~ $1 AND pg_catalog.pg_table_is_visible(c.oid))", "^"+tableName+"$").Scan(&tableExists)
 	if err != nil {
-		log.Println("Error checking if table exists: " + tableName)
+		slog.Error("error checking if table exists: " + tableName)
 		return err
 	}
 
 	if tableExists {
-		log.Println("Table already exists: " + tableName)
+		slog.Info("table already exists: " + tableName)
 		return nil
 	} else {
 		sanitizedTableQuery := fmt.Sprintf("CREATE TABLE IF NOT EXISTS \"%s\" (\"Id\" serial primary key)", tableName)
 
 		_, err := app.Db.Query(sanitizedTableQuery)
 		if err != nil {
-			log.Println("Error creating table: " + tableName)
+			slog.Error("error creating table: " + tableName)
 			return err
 		}
 
-		log.Println("Table created successfully: " + tableName)
+		slog.Info("table created successfully: " + tableName)
 		return nil
 	}
 }
@@ -65,17 +65,17 @@ func createColumn(app *app.App, tableName, columnName, columnType string) error
 	var columnExists bool
 	err := app.Db.QueryRow("SELECT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = $1 AND column_name = $2)", tableName, columnName).Scan(&columnExists)
 	if err != nil {
-		log.Println("Error checking if column exists: " + columnName + " in table: " + tableName)
+		slog.Error("error checking if column exists: " + columnName + " in table: " + tableName)
 		return err
 	}
 
 	if columnExists {
-		log.Println("Column already exists: " + columnName + " in table: " + tableName)
+		slog.Info("column already exists: " + columnName + " in table: " + tableName)
 		return nil
 	} else {
 		postgresType, err := getPostgresType(columnType)
 		if err != nil {
-			log.Println("Error creating column: " + columnName + " in table: " + tableName + " with type: " + postgresType)
+			slog.Error("error creating column: " + columnName + " in table: " + tableName + " with type: " + postgresType)
 			return err
 		}
 
@@ -84,11 +84,11 @@ func createColumn(app *app.App, tableName, columnName, columnType string) error
 
 		_, err = app.Db.Query(query)
 		if err != nil {
-			log.Println("Error creating column: " + columnName + " in table: " + tableName + " with type: " + postgresType)
+			slog.Error("error creating column: " + columnName + " in table: " + tableName + " with type: " + postgresType)
 			return err
 		}
 
-		log.Println("Column created successfully:", columnName)
+		slog.Info("column created successfully:", columnName)
 
 		return nil
 	}

env_example.json

@@ -12,6 +12,7 @@
     "HttpPort": "8090"
   },
   "Template": {
-    "BaseTemplateName": "templates/base.html"
+    "BaseTemplateName": "templates/base.html",
+    "ContentPath": "templates"
   }
 }

go.mod

@@ -1,8 +1,8 @@
 module GoWeb
 
-go 1.20
+go 1.21
 
 require (
 	github.com/lib/pq v1.10.9
-	golang.org/x/crypto v0.11.0
+	golang.org/x/crypto v0.17.0
 )

go.sum

@@ -1,4 +1,4 @@
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
+golang.org/x/crypto v0.17.0 h1:r8bRNjWL3GshPW3gkd+RpvzWrZAwPS49OmTGZ/uhM4k=
-golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
+golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=

main.go

@@ -6,10 +6,11 @@ import (
 	"GoWeb/database"
 	"GoWeb/models"
 	"GoWeb/routes"
+	"GoWeb/templating"
 	"context"
 	"embed"
 	"errors"
-	"log"
+	"log/slog"
 	"net/http"
 	"os"
 	"os/signal"
@@ -34,23 +35,26 @@ func main() {
 	if _, err := os.Stat("logs"); os.IsNotExist(err) {
 		err := os.Mkdir("logs", 0755)
 		if err != nil {
-			log.Println("Failed to create log directory")
+			panic("failed to create log directory: " + err.Error())
-			log.Println(err)
-			return
 		}
 	}
 
 	// Create log file and set output
-	file, err := os.OpenFile("logs/"+time.Now().Format("2006-01-02")+".log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+	file, err := os.OpenFile("logs/"+time.Now().Format("2006-01-02")+".log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
-	log.SetOutput(file)
+	if err != nil {
+		panic("error creating log file: " + err.Error())
+	}
+
+	logger := slog.New(slog.NewTextHandler(file, nil))
+	slog.SetDefault(logger) // Set structured logger globally
 
 	// Connect to database and run migrations
 	appLoaded.Db = database.Connect(&appLoaded)
 	if appLoaded.Config.Db.AutoMigrate {
 		err = models.RunAllMigrations(&appLoaded)
 		if err != nil {
-			log.Println(err)
+			slog.Error("error running migrations: " + err.Error())
-			return
+			os.Exit(1)
 		}
 	}
 
@@ -64,13 +68,21 @@ func main() {
 	routes.Get(&appLoaded)
 	routes.Post(&appLoaded)
 
+	// Prepare templates
+	err = templating.BuildPages(&appLoaded)
+	if err != nil {
+		slog.Error("error building templates: " + err.Error())
+		os.Exit(1)
+	}
+
 	// Start server
 	server := &http.Server{Addr: appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port}
 	go func() {
-		log.Println("Starting server and listening on " + appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port)
+		slog.Info("starting server and listening on " + appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port)
 		err := server.ListenAndServe()
 		if err != nil && !errors.Is(err, http.ErrServerClosed) {
-			log.Fatalf("Could not listen on %s: %v\n", appLoaded.Config.Listen.Ip+":"+appLoaded.Config.Listen.Port, err)
+			slog.Error("could not listen on %s: %v\n", appLoaded.Config.Listen.Ip+":"+appLoaded.Config.Listen.Port, err)
+			os.Exit(1)
 		}
 	}()
 
@@ -81,10 +93,11 @@ func main() {
 	go app.RunScheduledTasks(&appLoaded, 100, stop)
 
 	<-interrupt
-	log.Println("Interrupt signal received. Shutting down server...")
+	slog.Info("interrupt signal received. Shutting down server...")
 
 	err = server.Shutdown(context.Background())
 	if err != nil {
-		log.Fatalf("Could not gracefully shutdown the server: %v\n", err)
+		slog.Error("could not gracefully shutdown the server: %v\n", err)
+		os.Exit(1)
 	}
 }

middleware/csrf.go

@@ -2,7 +2,7 @@ package middleware
 
 import (
 	"GoWeb/security"
-	"log"
+	"log/slog"
 	"net/http"
 )
 
@@ -11,7 +11,7 @@ func Csrf(f func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWr
 	return func(w http.ResponseWriter, r *http.Request) {
 		_, err := security.VerifyCsrfToken(r)
 		if err != nil {
-			log.Println("Error verifying csrf token")
+			slog.Info("error verifying csrf token")
 			http.Error(w, "Forbidden", http.StatusForbidden)
 			return
 		}

models/session.go

@@ -4,7 +4,7 @@ import (
 	"GoWeb/app"
 	"crypto/rand"
 	"encoding/hex"
-	"log"
+	"log/slog"
 	"net/http"
 	"time"
 )
@@ -42,21 +42,19 @@ func CreateSession(app *app.App, w http.ResponseWriter, userId int64, remember b
 	var existingAuthToken bool
 	err := app.Db.QueryRow(selectAuthTokenIfExists, session.AuthToken).Scan(&existingAuthToken)
 	if err != nil {
-		log.Println("Error checking for existing auth token")
+		slog.Error("error checking for existing auth token" + err.Error())
-		log.Println(err)
 		return Session{}, err
 	}
 
 	// If duplicate token found, recursively call function until unique token is generated
-	if existingAuthToken == true {
+	if existingAuthToken {
-		log.Println("Duplicate token found in sessions table, generating new token...")
+		slog.Warn("duplicate token found in sessions table, generating new token...")
 		return CreateSession(app, w, userId, remember)
 	}
 
-	// Insert session into database
 	err = app.Db.QueryRow(insertSession, session.UserId, session.AuthToken, session.RememberMe, session.CreatedAt).Scan(&session.Id)
 	if err != nil {
-		log.Println("Error inserting session into database")
+		slog.Error("error inserting session into database")
 		return Session{}, err
 	}
 
@@ -64,24 +62,23 @@ func CreateSession(app *app.App, w http.ResponseWriter, userId int64, remember b
 	return session, nil
 }
 
-func GetSessionByAuthToken(app *app.App, authToken string) (Session, error) {
+func SessionByAuthToken(app *app.App, authToken string) (Session, error) {
 	session := Session{}
 
 	err := app.Db.QueryRow(selectSessionByAuthToken, authToken).Scan(&session.Id, &session.UserId, &session.AuthToken, &session.RememberMe, &session.CreatedAt)
 	if err != nil {
-		log.Println("Error getting session by auth token")
 		return Session{}, err
 	}
 
 	return session, nil
 }
 
-// Generates a random 64-byte string
+// generateAuthToken generates a random 64-byte string
 func generateAuthToken(app *app.App) string {
 	b := make([]byte, 64)
 	_, err := rand.Read(b)
 	if err != nil {
-		log.Println("Error generating random bytes")
+		slog.Error("error generating random bytes for auth token")
 	}
 
 	return hex.EncodeToString(b)
@@ -129,7 +126,7 @@ func deleteSessionCookie(app *app.App, w http.ResponseWriter) {
 func DeleteSessionByAuthToken(app *app.App, w http.ResponseWriter, authToken string) error {
 	_, err := app.Db.Exec(deleteSessionByAuthToken, authToken)
 	if err != nil {
-		log.Println("Error deleting session from database")
+		slog.Error("error deleting session from database")
 		return err
 	}
 
@@ -143,16 +140,14 @@ func ScheduledSessionCleanup(app *app.App) {
 	// Delete sessions older than 30 days (remember me sessions)
 	_, err := app.Db.Exec(deleteSessionsOlderThan30Days)
 	if err != nil {
-		log.Println("Error deleting 30 day expired sessions from database")
+		slog.Error("error deleting 30 day expired sessions from database" + err.Error())
-		log.Println(err)
 	}
 
 	// Delete sessions older than 6 hours
 	_, err = app.Db.Exec(deleteSessionsOlderThan6Hours)
 	if err != nil {
-		log.Println("Error deleting 6 hour expired sessions from database")
+		slog.Error("error deleting 6 hour expired sessions from database" + err.Error())
-		log.Println(err)
 	}
 
-	log.Println("Deleted expired sessions from database")
+	slog.Info("deleted expired sessions from database")
 }

models/user.go

@@ -2,9 +2,10 @@ package models
 
 import (
 	"GoWeb/app"
-	"log"
+	"crypto/sha256"
+	"encoding/hex"
+	"log/slog"
 	"net/http"
-	"strconv"
 	"time"
 
 	"golang.org/x/crypto/bcrypt"
@@ -28,43 +29,39 @@ const (
 	insertUser           = "INSERT INTO " + userTable + " (" + userColumnsNoId + ") VALUES ($1, $2, $3, $4) RETURNING \"Id\""
 )
 
-// GetCurrentUser finds the currently logged-in user by session cookie
+// CurrentUser finds the currently logged-in user by session cookie
-func GetCurrentUser(app *app.App, r *http.Request) (User, error) {
+func CurrentUser(app *app.App, r *http.Request) (User, error) {
 	cookie, err := r.Cookie("session")
 	if err != nil {
-		log.Println("Error getting session cookie")
 		return User{}, err
 	}
 
-	session, err := GetSessionByAuthToken(app, cookie.Value)
+	session, err := SessionByAuthToken(app, cookie.Value)
 	if err != nil {
-		log.Println("Error getting session by auth token")
 		return User{}, err
 	}
 
-	return GetUserById(app, session.UserId)
+	return UserById(app, session.UserId)
 }
 
-// GetUserById finds a User table row in the database by id and returns a struct representing this row
+// UserById finds a User table row in the database by id and returns a struct representing this row
-func GetUserById(app *app.App, id int64) (User, error) {
+func UserById(app *app.App, id int64) (User, error) {
 	user := User{}
 
 	err := app.Db.QueryRow(selectUserById, id).Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
 	if err != nil {
-		log.Println("Get user error (user not found) for user id:" + strconv.FormatInt(id, 10))
 		return User{}, err
 	}
 
 	return user, nil
 }
 
-// GetUserByUsername finds a User table row in the database by username and returns a struct representing this row
+// UserByUsername finds a User table row in the database by username and returns a struct representing this row
-func GetUserByUsername(app *app.App, username string) (User, error) {
+func UserByUsername(app *app.App, username string) (User, error) {
 	user := User{}
 
 	err := app.Db.QueryRow(selectUserByUsername, username).Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
 	if err != nil {
-		log.Println("Get user error (user not found) for user:" + username)
 		return User{}, err
 	}
 
@@ -73,9 +70,14 @@ func GetUserByUsername(app *app.App, username string) (User, error) {
 
 // CreateUser creates a User table row in the database
 func CreateUser(app *app.App, username string, password string, createdAt time.Time, updatedAt time.Time) (User, error) {
-	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	// Get sha256 hash of password then get bcrypt hash to store
+	hash256 := sha256.New()
+	hash256.Write([]byte(password))
+	hashSum := hash256.Sum(nil)
+	hashString := hex.EncodeToString(hashSum)
+	hash, err := bcrypt.GenerateFromPassword([]byte(hashString), bcrypt.DefaultCost)
 	if err != nil {
-		log.Println("Error hashing password when creating user")
+		slog.Error("error hashing password: " + err.Error())
 		return User{}, err
 	}
 
@@ -83,11 +85,11 @@ func CreateUser(app *app.App, username string, password string, createdAt time.T
 
 	err = app.Db.QueryRow(insertUser, username, string(hash), createdAt, updatedAt).Scan(&lastInsertId)
 	if err != nil {
-		log.Println("Error creating user row")
+		slog.Error("error creating user row: " + err.Error())
 		return User{}, err
 	}
 
-	return GetUserById(app, lastInsertId)
+	return UserById(app, lastInsertId)
 }
 
 // AuthenticateUser validates the password for the specified user
@@ -96,13 +98,18 @@ func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, pass
 
 	err := app.Db.QueryRow(selectUserByUsername, username).Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
 	if err != nil {
-		log.Println("Authentication error (user not found) for user:" + username)
+		slog.Info("user not found: " + username)
 		return Session{}, err
 	}
 
-	err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
+	// Get sha256 hash of password then check bcrypt
+	hash256 := sha256.New()
+	hash256.Write([]byte(password))
+	hashSum := hash256.Sum(nil)
+	hashString := hex.EncodeToString(hashSum)
+	err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(hashString))
 	if err != nil { // Failed to validate password, doesn't match
-		log.Println("Authentication error (incorrect password) for user:" + username)
+		slog.Info("incorrect password:" + username)
 		return Session{}, err
 	} else {
 		return CreateSession(app, w, user.Id, remember)
@@ -113,13 +120,11 @@ func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, pass
 func LogoutUser(app *app.App, w http.ResponseWriter, r *http.Request) {
 	cookie, err := r.Cookie("session")
 	if err != nil {
-		log.Println("Error getting cookie from request")
 		return
 	}
 
 	err = DeleteSessionByAuthToken(app, w, cookie.Value)
 	if err != nil {
-		log.Println("Error deleting session by AuthToken")
 		return
 	}
 }

routes/get.go

@@ -4,7 +4,7 @@ import (
 	"GoWeb/app"
 	"GoWeb/controllers"
 	"io/fs"
-	"log"
+	"log/slog"
 	"net/http"
 )
 
@@ -18,12 +18,12 @@ func Get(app *app.App) {
 	// Serve static files
 	staticFS, err := fs.Sub(app.Res, "static")
 	if err != nil {
-		log.Println(err)
+		slog.Error(err.Error())
 		return
 	}
 	staticHandler := http.FileServer(http.FS(staticFS))
 	http.Handle("/static/", http.StripPrefix("/static/", staticHandler))
-	log.Println("Serving static files from embedded file system /static")
+	slog.Info("serving static files from embedded file system /static")
 
 	// Pages
 	http.HandleFunc("/", getController.ShowHome)

security/csrf.go

@@ -3,7 +3,7 @@ package security
 import (
 	"crypto/rand"
 	"encoding/hex"
-	"log"
+	"log/slog"
 	"math"
 	"net/http"
 )
@@ -13,8 +13,7 @@ func GenerateCsrfToken(w http.ResponseWriter, _ *http.Request) (string, error) {
 	buff := make([]byte, int(math.Ceil(float64(64)/2)))
 	_, err := rand.Read(buff)
 	if err != nil {
-		log.Println("Error creating random buffer for csrf token value")
+		slog.Error("error creating random buffer for csrf token value" + err.Error())
-		log.Println(err)
 		return "", err
 	}
 	str := hex.EncodeToString(buff)
@@ -38,8 +37,7 @@ func GenerateCsrfToken(w http.ResponseWriter, _ *http.Request) (string, error) {
 func VerifyCsrfToken(r *http.Request) (bool, error) {
 	cookie, err := r.Cookie("csrf_token")
 	if err != nil {
-		log.Println("Error getting csrf_token cookie")
+		slog.Info("unable to get csrf_token cookie" + err.Error())
-		log.Println(err)
 		return false, err
 	}
 

templates/base.html

@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <title>SiteName - {{ template "pageTitle" }}</title>
-    <link rel="stylesheet" href="/static/css/style.css">
+    <link href="/static/css/style.css" rel="stylesheet">
 </head>
 <body>
 {{ template "content" . }}

templates/pages/login.html

@@ -7,11 +7,11 @@
         <input name="csrf_token" type="hidden" value="{{ .CsrfToken }}">
 
         <label for="username">Username:</label><br>
-        <input id="username" name="username" type="text" placeholder="John"><br><br>
+        <input id="username" name="username" placeholder="John" type="text"><br><br>
         <label for="password">Password:</label><br>
         <input id="password" name="password" type="password"><br><br>
         <label for="remember">Remember Me:</label>
-        <input id="remember" type="checkbox" name="remember"><br><br>
+        <input id="remember" name="remember" type="checkbox"><br><br>
         <input type="submit" value="Submit">
     </form>
 </div>

templates/pages/register.html

@@ -7,7 +7,7 @@
         <input name="csrf_token" type="hidden" value="{{ .CsrfToken }}">
 
         <label for="username">Username:</label><br>
-        <input id="username" name="username" type="text" placeholder="John"><br><br>
+        <input id="username" name="username" placeholder="John" type="text"><br><br>
         <label for="password">Password:</label><br>
         <input id="password" name="password" type="password"><br><br>
         <input type="submit" value="Submit">

templating/templateHelper.go

@@ -2,46 +2,83 @@ package templating
 
 import (
 	"GoWeb/app"
+	"fmt"
 	"html/template"
-	"log"
+	"io/fs"
+	"log/slog"
 	"net/http"
 )
 
-// RenderTemplate renders and serves a template from the embedded filesystem optionally with given data
+var templates = make(map[string]*template.Template) // This is only used here, does not need to be in app.App
-func RenderTemplate(app *app.App, w http.ResponseWriter, contentPath string, data any) {
-	templatePath := app.Config.Template.BaseName
 
-	templateContent, err := app.Res.ReadFile(templatePath)
+func BuildPages(app *app.App) error {
+	basePath := app.Config.Template.BaseName
+
+	baseContent, err := app.Res.ReadFile(basePath)
 	if err != nil {
-		log.Println(err)
+		return fmt.Errorf("error reading base file: %w", err)
-		http.Error(w, err.Error(), 500)
-		return
 	}
 
-	t, err := template.New(templatePath).Parse(string(templateContent))
+	base, err := template.New(basePath).Parse(string(baseContent)) // Sets filepath as name and parses content
 	if err != nil {
-		log.Println(err)
+		return fmt.Errorf("error parsing base file: %w", err)
-		http.Error(w, err.Error(), 500)
-		return
 	}
 
+	readFilesRecursively := func(fsys fs.FS, root string) ([]string, error) {
+		var files []string
+		err := fs.WalkDir(fsys, root, func(path string, d fs.DirEntry, err error) error {
+			if err != nil {
+				return fmt.Errorf("error walking the path %q: %w", path, err)
+			}
+			if !d.IsDir() {
+				files = append(files, path)
+			}
+			return nil
+		})
+		return files, err
+	}
+
+	// Get all file paths in the directory tree
+	filePaths, err := readFilesRecursively(app.Res, app.Config.Template.ContentPath)
+	if err != nil {
+		return fmt.Errorf("error reading files recursively: %w", err)
+	}
+
+	for _, contentPath := range filePaths { // Create a new template base + content for each page
 		content, err := app.Res.ReadFile(contentPath)
 		if err != nil {
-		log.Println(err)
+			return fmt.Errorf("error reading content file %s: %w", contentPath, err)
-		http.Error(w, err.Error(), 500)
+		}
+
+		t, err := base.Clone()
+		if err != nil {
+			return fmt.Errorf("error cloning base template: %w", err)
+		}
+
+		_, err = t.Parse(string(content))
+		if err != nil {
+			return fmt.Errorf("error parsing content: %w", err)
+		}
+
+		templates[contentPath] = t
+	}
+
+	return nil
+}
+
+func RenderTemplate(w http.ResponseWriter, contentPath string, data any) {
+	t, ok := templates[contentPath]
+	if !ok {
+		err := fmt.Errorf("template not found for path: %s", contentPath)
+		slog.Error(err.Error())
+		http.Error(w, "Template not found", 404)
 		return
 	}
 
-	t, err = t.Parse(string(content))
+	err := t.Execute(w, data) // Execute prebuilt template with dynamic data
 	if err != nil {
-		log.Println(err)
+		err = fmt.Errorf("error executing template: %w", err)
-		http.Error(w, err.Error(), 500)
+		slog.Error(err.Error())
-		return
-	}
-
-	err = t.Execute(w, data)
-	if err != nil {
-		log.Println(err)
 		http.Error(w, err.Error(), 500)
 		return
 	}