Merge branch 'master' into toml_config

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

.gitignore

@@ -1,4 +1,26 @@
+# GoWeb specific
 env.json
 logs/
 *.log
-/.idea
+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories
+vendor/
+
+# Go workspace file
+go.work
+
+# IDE files
+/.idea

README.md

@@ -0,0 +1,65 @@
+# GoWeb 🌐
+
+GoWeb is a simple Go web framework that aims to only use the standard library. The overall file structure and
+development flow is inspired by larger frameworks like Laravel. It is partially ready for smaller projects if you are
+fine with getting your hands dirty, but I plan on having it ready to go for more serious projects when it hits version
+2.0.
+
+<hr>
+
+## Current features 🚀
+
+- Routing/controllers
+- Templating
+- Simple database migration system
+- Built in REST client
+- CSRF protection
+- Middleware
+- Minimal user login/registration + sessions
+- Config file handling
+- Scheduled tasks
+- Entire website compiles into a single binary (~10mb) (excluding env.toml)
+- Minimal dependencies (just standard library, postgres driver, and experimental package for bcrypt)
+
+<hr>
+
+## When to use 🙂
+
+- You need to build a dynamic web application with persistent data
+- You need to build a dynamic website using Go and need a good starting point
+- You need to build an API in Go and don't know where to start
+- Pretty much any use-case where you would use Laravel, Django, or Flask
+
+## When not to use 🙃
+
+- You need a static website (see [Hugo](https://gohugo.io/))
+- You need a simple blog (see [Hugo](https://gohugo.io/))
+- You need a simple site for your projects' documentation (see [Hugo](https://gohugo.io/))
+
+## How to use 🤔
+
+1. Clone
+2. Delete the git folder, so you can start tracking in your own repo
+3. Run `go get` to install dependencies
+4. Copy env_example.toml to env.toml and fill in the values
+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 👨‍💻
+
+- Open an issue on GitHub if you find a bug or have a feature request.
+- [Email](mailto:contact@mpatterson.xyz) me a patch if you want to contribute code.
+    - Please include a good description of what the patch does and why it is needed, also include how you want to be
+      credited in the commit message.
+
+<hr>
+
+### License and disclaimer 😤
+
+- You are free to use this project under the terms of the MIT license. See LICENSE for more details.
+- You and you alone are responsible for the security and everything else regarding your application.
+- It is not required, but I ask that when you use this project you give me credit by linking to this repository.
+- I also ask that when releasing self-hosted or other end-user applications that you release it under
+  the [GPLv3](https://www.gnu.org/licenses/gpl-3.0.html) license. This too is not required, but I would appreciate it.

app/app.go

@@ -8,7 +8,8 @@ import (
 
 // App contains and supplies available configurations and connections
 type App struct {
-	Config config.Configuration // Configuration file
-	Db     *sql.DB              // Database connection
-	Res    *embed.FS            // Resources from the embedded filesystem
+	Config         config.Configuration // Configuration file
+	Db             *sql.DB              // Database connection
+	Res            *embed.FS            // Resources from the embedded filesystem
+	ScheduledTasks Scheduled            // Scheduled contains a struct of all scheduled functions
 }

app/schedule.go

@@ -0,0 +1,71 @@
+package app
+
+import (
+	"sync"
+	"time"
+)
+
+type Scheduled struct {
+	EveryReboot []func(app *App)
+	EverySecond []func(app *App)
+	EveryMinute []func(app *App)
+	EveryHour   []func(app *App)
+	EveryDay    []func(app *App)
+	EveryWeek   []func(app *App)
+	EveryMonth  []func(app *App)
+	EveryYear   []func(app *App)
+}
+
+type Task struct {
+	Interval time.Duration
+	Funcs    []func(app *App)
+}
+
+func RunScheduledTasks(app *App, poolSize int, stop <-chan struct{}) {
+	for _, f := range app.ScheduledTasks.EveryReboot {
+		f(app)
+	}
+
+	tasks := []Task{
+		{Interval: time.Second, Funcs: app.ScheduledTasks.EverySecond},
+		{Interval: time.Minute, Funcs: app.ScheduledTasks.EveryMinute},
+		{Interval: time.Hour, Funcs: app.ScheduledTasks.EveryHour},
+		{Interval: 24 * time.Hour, Funcs: app.ScheduledTasks.EveryDay},
+		{Interval: 7 * 24 * time.Hour, Funcs: app.ScheduledTasks.EveryWeek},
+		{Interval: 30 * 24 * time.Hour, Funcs: app.ScheduledTasks.EveryMonth},
+		{Interval: 365 * 24 * time.Hour, Funcs: app.ScheduledTasks.EveryYear},
+	}
+
+	var wg sync.WaitGroup
+	runners := make([]chan bool, len(tasks))
+	for i, task := range tasks {
+		runner := make(chan bool, poolSize)
+		runners[i] = runner
+		wg.Add(1)
+		go func(task Task, runner chan bool) {
+			defer wg.Done()
+			ticker := time.NewTicker(task.Interval)
+			defer ticker.Stop()
+			for {
+				select {
+				case <-ticker.C:
+					for _, f := range task.Funcs {
+						runner <- true
+						go func(f func(app *App)) {
+							defer func() { <-runner }()
+							f(app)
+						}(f)
+					}
+				case <-stop:
+					return
+				}
+			}
+		}(task, runner)
+	}
+
+	wg.Wait()
+
+	for _, runner := range runners {
+		close(runner)
+	}
+}

config/config.go

@@ -1,53 +1,44 @@
 package config
 
 import (
-	"encoding/json"
 	"flag"
-	"log"
+	"github.com/BurntSushi/toml"
 	"os"
 )
 
 type Configuration struct {
 	Db struct {
-		Ip       string `json:"DbIp"`
-		Port     string `json:"DbPort"`
-		Name     string `json:"DbName"`
-		User     string `json:"DbUser"`
-		Password string `json:"DbPassword"`
+		Ip          string `toml:"DbIp"`
+		Port        string `toml:"DbPort"`
+		Name        string `toml:"DbName"`
+		User        string `toml:"DbUser"`
+		Password    string `toml:"DbPassword"`
+		AutoMigrate bool   `toml:"DbAutoMigrate"`
 	}
 
 	Listen struct {
-		Ip   string `json:"HttpIp"`
-		Port string `json:"HttpPort"`
+		Ip   string `toml:"HttpIp"`
+		Port string `toml:"HttpPort"`
 	}
 
 	Template struct {
-		BaseName string `json:"BaseTemplateName"`
+		BaseName string `toml:"BaseTemplateName"`
 	}
 }
 
 // LoadConfig loads and returns a configuration struct
 func LoadConfig() Configuration {
-	c := flag.String("c", "env.json", "Path to the json configuration file")
+	c := flag.String("c", "env.toml", "Path to the toml configuration file")
 	flag.Parse()
-	file, err := os.Open(*c)
+	file, err := os.ReadFile(*c)
 	if err != nil {
-		log.Fatal("Unable to open JSON config file: ", err)
+		panic("Unable to read TOML config file: " + err.Error())
 	}
 
-	defer func(file *os.File) {
-		err := file.Close()
-		if err != nil {
-			log.Fatal("Unable to close JSON config file: ", err)
-		}
-	}(file)
-
-	// Decode json config file to Configuration struct named config
-	decoder := json.NewDecoder(file)
-	Config := Configuration{}
-	err = decoder.Decode(&Config)
+	var Config Configuration
+	_, err = toml.Decode(string(file), &Config)
 	if err != nil {
-		log.Fatal("Unable to decode JSON config file: ", err)
+		panic("Unable to decode TOML config file: " + err.Error())
 	}
 
 	return Config

controllers/get.go

@@ -0,0 +1,65 @@
+package controllers
+
+import (
+	"GoWeb/app"
+	"GoWeb/models"
+	"GoWeb/security"
+	"GoWeb/templating"
+	"net/http"
+)
+
+// Get is a wrapper struct for the App struct
+type Get struct {
+	App *app.App
+}
+
+func (g *Get) ShowHome(w http.ResponseWriter, _ *http.Request) {
+	type dataStruct struct {
+		Test string
+	}
+
+	data := dataStruct{
+		Test: "Hello World!",
+	}
+
+	templating.RenderTemplate(g.App, w, "templates/pages/home.html", data)
+}
+
+func (g *Get) ShowRegister(w http.ResponseWriter, r *http.Request) {
+	type dataStruct struct {
+		CsrfToken string
+	}
+
+	CsrfToken, err := security.GenerateCsrfToken(w, r)
+	if err != nil {
+		return
+	}
+
+	data := dataStruct{
+		CsrfToken: CsrfToken,
+	}
+
+	templating.RenderTemplate(g.App, w, "templates/pages/register.html", data)
+}
+
+func (g *Get) ShowLogin(w http.ResponseWriter, r *http.Request) {
+	type dataStruct struct {
+		CsrfToken string
+	}
+
+	CsrfToken, err := security.GenerateCsrfToken(w, r)
+	if err != nil {
+		return
+	}
+
+	data := dataStruct{
+		CsrfToken: CsrfToken,
+	}
+
+	templating.RenderTemplate(g.App, w, "templates/pages/login.html", data)
+}
+
+func (g *Get) Logout(w http.ResponseWriter, r *http.Request) {
+	models.LogoutUser(g.App, w, r)
+	http.Redirect(w, r, "/", http.StatusFound)
+}

controllers/getController.go

@@ -1,67 +0,0 @@
-package controllers
-
-import (
-	"GoWeb/app"
-	"GoWeb/database/models"
-	"GoWeb/security"
-	"GoWeb/templating"
-	"net/http"
-)
-
-// GetController is a wrapper struct for the App struct
-type GetController struct {
-	App *app.App
-}
-
-func (getController *GetController) ShowHome(w http.ResponseWriter, _ *http.Request) {
-	type dataStruct struct {
-		Test string
-	}
-
-	data := dataStruct{
-		Test: "Hello World!",
-	}
-
-	templating.RenderTemplate(getController.App, w, "templates/pages/home.html", data)
-}
-
-func (getController *GetController) ShowRegister(w http.ResponseWriter, r *http.Request) {
-	type dataStruct struct {
-		CsrfToken string
-	}
-
-	// Create csrf token
-	CsrfToken, err := security.GenerateCsrfToken(w, r)
-	if err != nil {
-		return
-	}
-
-	data := dataStruct{
-		CsrfToken: CsrfToken,
-	}
-
-	templating.RenderTemplate(getController.App, w, "templates/pages/register.html", data)
-}
-
-func (getController *GetController) ShowLogin(w http.ResponseWriter, r *http.Request) {
-	type dataStruct struct {
-		CsrfToken string
-	}
-
-	// Create csrf token
-	CsrfToken, err := security.GenerateCsrfToken(w, r)
-	if err != nil {
-		return
-	}
-
-	data := dataStruct{
-		CsrfToken: CsrfToken,
-	}
-
-	templating.RenderTemplate(getController.App, w, "templates/pages/login.html", data)
-}
-
-func (getController *GetController) Logout(w http.ResponseWriter, r *http.Request) {
-	models.LogoutUser(getController.App, w, r)
-	http.Redirect(w, r, "/", http.StatusFound)
-}

controllers/post.go

@@ -0,0 +1,52 @@
+package controllers
+
+import (
+	"GoWeb/app"
+	"GoWeb/models"
+	"log/slog"
+	"net/http"
+	"time"
+)
+
+// Post is a wrapper struct for the App struct
+type Post struct {
+	App *app.App
+}
+
+func (p *Post) Login(w http.ResponseWriter, r *http.Request) {
+	username := r.FormValue("username")
+	password := r.FormValue("password")
+	remember := r.FormValue("remember") == "on"
+
+	if username == "" || password == "" {
+		http.Redirect(w, r, "/login", http.StatusUnauthorized)
+	}
+
+	_, err := models.AuthenticateUser(p.App, w, username, password, remember)
+	if err != nil {
+		http.Redirect(w, r, "/login", http.StatusUnauthorized)
+		return
+	}
+
+	http.Redirect(w, r, "/", http.StatusFound)
+}
+
+func (p *Post) Register(w http.ResponseWriter, r *http.Request) {
+	username := r.FormValue("username")
+	password := r.FormValue("password")
+	createdAt := time.Now()
+	updatedAt := time.Now()
+
+	if username == "" || password == "" {
+		http.Redirect(w, r, "/register", http.StatusUnauthorized)
+	}
+
+	_, err := models.CreateUser(p.App, username, password, createdAt, updatedAt)
+	if err != nil {
+		// TODO: if err == bcrypt.ErrPasswordTooLong display error to user, this will require a flash message system with cookies
+		slog.Error("error creating user: " + err.Error())
+		http.Redirect(w, r, "/register", http.StatusInternalServerError)
+	}
+
+	http.Redirect(w, r, "/login", http.StatusFound)
+}

controllers/postController.go

@@ -1,70 +0,0 @@
-package controllers
-
-import (
-	"GoWeb/app"
-	"GoWeb/database/models"
-	"GoWeb/security"
-	"log"
-	"net/http"
-	"time"
-)
-
-// PostController is a wrapper struct for the App struct
-type PostController struct {
-	App *app.App
-}
-
-func (postController *PostController) Login(w http.ResponseWriter, r *http.Request) {
-	// Validate csrf token
-	_, err := security.VerifyCsrfToken(r)
-	if err != nil {
-		log.Println("Error verifying csrf token")
-		return
-	}
-
-	username := r.FormValue("username")
-	password := r.FormValue("password")
-
-	if username == "" || password == "" {
-		log.Println("Tried to login user with empty username or password")
-		http.Redirect(w, r, "/login", http.StatusFound)
-	}
-
-	_, err = models.AuthenticateUser(postController.App, w, username, password)
-	if err != nil {
-		log.Println("Error authenticating user")
-		log.Println(err)
-		http.Redirect(w, r, "/login", http.StatusFound)
-		return
-	}
-
-	http.Redirect(w, r, "/", http.StatusFound)
-}
-
-func (postController *PostController) Register(w http.ResponseWriter, r *http.Request) {
-	// Validate csrf token
-	_, err := security.VerifyCsrfToken(r)
-	if err != nil {
-		log.Println("Error verifying csrf token")
-		return
-	}
-
-	username := r.FormValue("username")
-	password := r.FormValue("password")
-	createdAt := time.Now()
-	updatedAt := time.Now()
-
-	if username == "" || password == "" {
-		log.Println("Tried to create user with empty username or password")
-		http.Redirect(w, r, "/register", http.StatusFound)
-	}
-
-	_, err = models.CreateUser(postController.App, username, password, createdAt, updatedAt)
-	if err != nil {
-		log.Println("Error creating user")
-		log.Println(err)
-		return
-	}
-
-	http.Redirect(w, r, "/login", http.StatusFound)
-}

database/connection.go

@@ -4,31 +4,27 @@ import (
 	"GoWeb/app"
 	"database/sql"
 	"fmt"
-	"log"
-
 	_ "github.com/lib/pq"
+	"log/slog"
 )
 
-// ConnectDB returns a new database connection
-func ConnectDB(app *app.App) *sql.DB {
-	// Set connection parameters from config
+// Connect returns a new database connection
+func Connect(app *app.App) *sql.DB {
 	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

@@ -0,0 +1,119 @@
+package database
+
+import (
+	"GoWeb/app"
+	"errors"
+	"fmt"
+	"github.com/lib/pq"
+	"log/slog"
+	"reflect"
+)
+
+// Migrate given a dummy object of any type, it will create a table with the same name as the type and create columns with the same name as the fields of the object
+func Migrate(app *app.App, anyStruct interface{}) error {
+	valueOfStruct := reflect.ValueOf(anyStruct)
+	typeOfStruct := valueOfStruct.Type()
+
+	tableName := typeOfStruct.Name()
+	err := createTable(app, tableName)
+	if err != nil {
+		return err
+	}
+
+	for i := 0; i < valueOfStruct.NumField(); i++ {
+		fieldType := typeOfStruct.Field(i)
+		fieldName := fieldType.Name
+		if fieldName != "Id" && fieldName != "id" {
+			err := createColumn(app, tableName, fieldName, fieldType.Type.Name())
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+// createTable creates a table with the given name if it doesn't exist, it is assumed that id will be the primary key
+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 {
+		slog.Error("error checking if table exists: " + tableName)
+		return err
+	}
+
+	if tableExists {
+		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 {
+			slog.Error("error creating table: " + tableName)
+			return err
+		}
+
+		slog.Info("table created successfully: " + tableName)
+		return nil
+	}
+}
+
+// createColumn creates a column with the given name and type if it doesn't exist
+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 {
+		slog.Error("error checking if column exists: " + columnName + " in table: " + tableName)
+		return err
+	}
+
+	if columnExists {
+		slog.Info("column already exists: " + columnName + " in table: " + tableName)
+		return nil
+	} else {
+		postgresType, err := getPostgresType(columnType)
+		if err != nil {
+			slog.Error("error creating column: " + columnName + " in table: " + tableName + " with type: " + postgresType)
+			return err
+		}
+
+		sanitizedTableName := pq.QuoteIdentifier(tableName)
+		query := fmt.Sprintf("ALTER TABLE %s ADD COLUMN IF NOT EXISTS \"%s\" %s", sanitizedTableName, columnName, postgresType)
+
+		_, err = app.Db.Query(query)
+		if err != nil {
+			slog.Error("error creating column: " + columnName + " in table: " + tableName + " with type: " + postgresType)
+			return err
+		}
+
+		slog.Info("column created successfully:", columnName)
+
+		return nil
+	}
+}
+
+// Given a type in Go, return the corresponding type in Postgres
+func getPostgresType(goType string) (string, error) {
+	switch goType {
+	case "int", "int32", "uint", "uint32":
+		return "integer", nil
+	case "int64", "uint64":
+		return "bigint", nil
+	case "int16", "int8", "uint16", "uint8", "byte":
+		return "smallint", nil
+	case "string":
+		return "text", nil
+	case "float64":
+		return "double precision", nil
+	case "bool":
+		return "boolean", nil
+	case "Time":
+		return "timestamp", nil
+	case "[]byte":
+		return "bytea", nil
+	}
+
+	return "", errors.New("Unknown type: " + goType)
+}

database/models/user.go

@@ -1,224 +0,0 @@
-package models
-
-import (
-	"GoWeb/app"
-	"crypto/rand"
-	"database/sql"
-	"encoding/hex"
-	"log"
-	"math"
-	"net/http"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/bcrypt"
-)
-
-type User struct {
-	Id        int64
-	Username  string
-	Password  string
-	CreatedAt string
-	UpdatedAt string
-}
-
-// GetCurrentUser finds the currently logged-in user by session cookie
-func GetCurrentUser(app *app.App, r *http.Request) (User, error) {
-	cookie, err := r.Cookie("session")
-	if err != nil {
-		log.Println("Error getting session cookie")
-		log.Println(err)
-		return User{}, err
-	}
-
-	var userId int64
-
-	// Query row by session cookie
-	err = app.Db.QueryRow("SELECT user_id FROM sessions WHERE session = $1", cookie.Value).Scan(&userId)
-	if err != nil {
-		log.Println("Error querying session row with session: " + cookie.Value)
-		return User{}, err
-	}
-
-	return GetUserById(app, userId)
-}
-
-// GetUserById finds a users table row in the database by id and returns a struct representing this row
-func GetUserById(app *app.App, id int64) (User, error) {
-	user := User{}
-
-	// Query row by id
-	row, err := app.Db.Query("SELECT id, username, password, created_at, updated_at FROM users WHERE id = $1", id)
-	if err != nil {
-		log.Println("Error querying user row with id: " + strconv.FormatInt(id, 10))
-		return User{}, err
-	}
-
-	defer func(row *sql.Rows) {
-		err := row.Close()
-		if err != nil {
-			log.Println("Error closing database row")
-			log.Println(err)
-		}
-	}(row)
-
-	// Feed row data into user struct
-	row.Next()
-	err = row.Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
-	if err != nil {
-		log.Println("Error reading queried row from database")
-		log.Println(err)
-		return User{}, err
-	}
-
-	return user, nil
-}
-
-// CreateUser creates a users table row in the database
-func CreateUser(app *app.App, username string, password string, createdAt time.Time, updatedAt time.Time) (User, error) {
-	// Hash password
-	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
-	if err != nil {
-		log.Println("Error hashing password when creating user")
-		return User{}, err
-	}
-
-	var lastInsertId int64
-
-	sqlStatement := "INSERT INTO users (username, password, created_at, updated_at) VALUES ($1, $2, $3, $4) RETURNING id"
-	err = app.Db.QueryRow(sqlStatement, username, string(hash), createdAt, updatedAt).Scan(&lastInsertId)
-	if err != nil {
-		log.Println("Error creating user row")
-		log.Println(err)
-		return User{}, err
-	}
-
-	return GetUserById(app, lastInsertId)
-}
-
-// AuthenticateUser validates the password for the specified user if it matches a session cookie is created and returned
-func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, password string) (string, error) {
-	var hashedPassword []byte
-
-	// Query row by username, scan password column
-	err := app.Db.QueryRow("SELECT password FROM users WHERE username = $1", username).Scan(&hashedPassword)
-	if err != nil {
-		log.Println("Unable to find row with username: " + username)
-		log.Println(err)
-		return "", err
-	}
-
-	// Validate password
-	err = bcrypt.CompareHashAndPassword(hashedPassword, []byte(password))
-	if err != nil { // Failed to validate password, doesn't match
-		log.Println("Authentication error (incorrect password) for user:" + username)
-		log.Println(err)
-		return "", err
-	} else {
-		return createSessionCookie(app, w, username)
-	}
-}
-
-// createSessionCookie creates a new session token and cookie and returns the token value
-func createSessionCookie(app *app.App, w http.ResponseWriter, username string) (string, error) {
-	// Generate random 64 character string (alpha-numeric)
-	buff := make([]byte, int(math.Ceil(float64(64)/2)))
-	_, err := rand.Read(buff)
-	if err != nil {
-		log.Println("Error creating random buffer for session token value")
-		log.Println(err)
-		return "", err
-	}
-	str := hex.EncodeToString(buff)
-	token := str[:64]
-
-	// If the auth_token column for any user matches the token, set existingAuthToken to true
-	var existingAuthToken bool
-	err = app.Db.QueryRow("SELECT EXISTS(SELECT 1 FROM users WHERE auth_token = $1)", token).Scan(&existingAuthToken)
-	if err != nil {
-		log.Println("Error checking for existing auth token")
-		log.Println(err)
-		return "", err
-	}
-
-	// If duplicate token found, recursively call function until unique token is generated
-	if existingAuthToken == true {
-		log.Println("Duplicate token found in sessions table")
-		return createSessionCookie(app, w, username)
-	}
-
-	// Store token in auth_token column of the users table
-	sqlStatement := "UPDATE users SET auth_token = $1 WHERE username = $2"
-	_, err = app.Db.Exec(sqlStatement, token, username)
-	if err != nil {
-		log.Println("Error setting auth_token column in users table")
-		log.Println(err)
-		return "", err
-	}
-
-	// Create session cookie, containing token
-	cookie := &http.Cookie{
-		Name:     "session",
-		Value:    token,
-		Path:     "/",
-		MaxAge:   86400,
-		HttpOnly: true,
-		Secure:   true,
-	}
-
-	http.SetCookie(w, cookie)
-
-	return token, nil
-}
-
-// ValidateSessionCookie validates the session cookie and returns the username of the user if valid
-func ValidateSessionCookie(app *app.App, r *http.Request) (string, error) {
-	// Get cookie from request
-	cookie, err := r.Cookie("session")
-	if err != nil {
-		log.Println("Error getting cookie from request")
-		log.Println(err)
-		return "", err
-	}
-
-	// Query row by token
-	var username string
-	err = app.Db.QueryRow("SELECT username FROM users WHERE auth_token = $1", cookie.Value).Scan(&username)
-	if err != nil {
-		log.Println("Error querying row by token")
-		log.Println(err)
-		return "", err
-	}
-
-	return username, nil
-}
-
-// LogoutUser deletes the session cookie and token from the database
-func LogoutUser(app *app.App, w http.ResponseWriter, r *http.Request) {
-	// Get cookie from request
-	cookie, err := r.Cookie("session")
-	if err != nil {
-		log.Println("Error getting cookie from request")
-		log.Println(err)
-		return
-	}
-
-	// Set token to empty string
-	sqlStatement := "UPDATE users SET auth_token = $1 WHERE auth_token = $2"
-	_, err = app.Db.Exec(sqlStatement, "", cookie.Value)
-	if err != nil {
-		log.Println("Error setting auth_token column in users table")
-		log.Println(err)
-		return
-	}
-
-	// Delete cookie
-	cookie = &http.Cookie{
-		Name:   "session",
-		Value:  "",
-		Path:   "/",
-		MaxAge: -1,
-	}
-
-	http.SetCookie(w, cookie)
-}

env_example.json

@@ -1,16 +0,0 @@
-{
-  "Db": {
-    "DbIp": "127.0.0.1",
-    "DbPort": "5432",
-    "DbName": "database",
-    "DbUser": "user",
-    "DbPassword": "password"
-  },
-  "Listen": {
-    "HttpIp": "127.0.0.1",
-    "HttpPort": "8090"
-  },
-  "Template": {
-    "BaseTemplateName": "templates/base.html"
-  }
-}

env_example.toml

@@ -0,0 +1,14 @@
+[Db]
+DbIp = "127.0.0.1"
+DbPort = "5432"
+DbName = "test"
+DbUser = "postgres"
+DbPassword = "postgres"
+DbAutoMigrate = true
+
+[Listen]
+HttpIp = "127.0.0.1"
+HttpPort = "8090"
+
+[Template]
+BaseTemplateName = "templates/base.html"

go.mod

@@ -1,8 +1,10 @@
 module GoWeb
 
-go 1.20
+go 1.21
 
 require (
-	github.com/lib/pq v1.10.7
-	golang.org/x/crypto v0.1.0
+	github.com/lib/pq v1.10.9
+	golang.org/x/crypto v0.13.0
 )
+
+require github.com/BurntSushi/toml v1.3.2

go.sum

@@ -1,4 +1,6 @@
-github.com/lib/pq v1.10.7 h1:p7ZhMD+KsSRozJr34udlUrhboJwWAgCg34+/ZZNvZZw=
-github.com/lib/pq v1.10.7/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-golang.org/x/crypto v0.1.0 h1:MDRAIl0xIo9Io2xV565hzXHw3zVseKrJKodhohM5CjU=
-golang.org/x/crypto v0.1.0/go.mod h1:RecgLatLF4+eUMCP1PoPZQb+cVrJcOPbHkTkbkB9sbw=
+github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
+github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+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 v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
+golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=

main.go

@@ -4,11 +4,16 @@ import (
 	"GoWeb/app"
 	"GoWeb/config"
 	"GoWeb/database"
+	"GoWeb/models"
 	"GoWeb/routes"
+	"context"
 	"embed"
-	"log"
+	"errors"
+	"log/slog"
 	"net/http"
 	"os"
+	"os/signal"
+	"syscall"
 	"time"
 )
 
@@ -29,26 +34,62 @@ func main() {
 	if _, err := os.Stat("logs"); os.IsNotExist(err) {
 		err := os.Mkdir("logs", 0755)
 		if err != nil {
-			panic("Failed to create log directory")
+			panic("failed to create log directory: " + err.Error())
 		}
 	}
 
 	// 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)
-	log.SetOutput(file)
+	file, err := os.OpenFile("logs/"+time.Now().Format("2006-01-02")+".log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
+	if err != nil {
+		panic("error creating log file: " + err.Error())
+	}
 
-	// Connect to database
-	appLoaded.Db = database.ConnectDB(&appLoaded)
+	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 {
+			slog.Error("error running migrations: " + err.Error())
+			os.Exit(1)
+		}
+	}
+
+	// Assign and run scheduled tasks
+	appLoaded.ScheduledTasks = app.Scheduled{
+		EveryReboot: []func(app *app.App){models.ScheduledSessionCleanup},
+		EveryMinute: []func(app *app.App){models.ScheduledSessionCleanup},
+	}
 
 	// Define Routes
-	routes.GetRoutes(&appLoaded)
-	routes.PostRoutes(&appLoaded)
+	routes.Get(&appLoaded)
+	routes.Post(&appLoaded)
 
 	// Start server
-	log.Println("Starting server and listening on " + appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port)
-	err = http.ListenAndServe(appLoaded.Config.Listen.Ip+":"+appLoaded.Config.Listen.Port, nil)
+	server := &http.Server{Addr: appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port}
+	go func() {
+		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) {
+			slog.Error("could not listen on %s: %v\n", appLoaded.Config.Listen.Ip+":"+appLoaded.Config.Listen.Port, err)
+			os.Exit(1)
+		}
+	}()
+
+	// Wait for interrupt signal and shut down the server
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
+	stop := make(chan struct{})
+	go app.RunScheduledTasks(&appLoaded, 100, stop)
+
+	<-interrupt
+	slog.Info("interrupt signal received. Shutting down server...")
+
+	err = server.Shutdown(context.Background())
 	if err != nil {
-		log.Println(err)
-		return
+		slog.Error("could not gracefully shutdown the server: %v\n", err)
+		os.Exit(1)
 	}
 }

middleware/csrf.go

@@ -0,0 +1,21 @@
+package middleware
+
+import (
+	"GoWeb/security"
+	"log/slog"
+	"net/http"
+)
+
+// Csrf validates the CSRF token and returns the handler function if it succeeded
+func Csrf(f func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		_, err := security.VerifyCsrfToken(r)
+		if err != nil {
+			slog.Info("error verifying csrf token")
+			http.Error(w, "Forbidden", http.StatusForbidden)
+			return
+		}
+
+		f(w, r)
+	}
+}

middleware/groups.go

@@ -0,0 +1,5 @@
+package middleware
+
+import "net/http"
+
+type MiddlewareFunc func(f func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request)

middleware/wrapper.go

@@ -0,0 +1,14 @@
+package middleware
+
+import "net/http"
+
+// ProcessGroup is a wrapper function for the http.HandleFunc function
+// that takes the function you want to execute (f) and the middleware you want
+// to execute (m) this should be used when processing multiple groups of middleware at a time
+func ProcessGroup(f func(w http.ResponseWriter, r *http.Request), m []MiddlewareFunc) func(w http.ResponseWriter, r *http.Request) {
+	for _, middleware := range m {
+		_ = middleware(f)
+	}
+
+	return f
+}

models/migrations.go

@@ -0,0 +1,37 @@
+package models
+
+import (
+	"GoWeb/app"
+	"GoWeb/database"
+	"time"
+)
+
+// RunAllMigrations defines the structs that should be represented in the database
+func RunAllMigrations(app *app.App) error {
+	// Declare new dummy user for reflection
+	user := User{
+		Id:        1, // Id is handled automatically, but it is added here to show it will be skipped during column creation
+		Username:  "migrate",
+		Password:  "migrate",
+		CreatedAt: time.Now(),
+		UpdatedAt: time.Now(),
+	}
+	err := database.Migrate(app, user)
+	if err != nil {
+		return err
+	}
+
+	session := Session{
+		Id:         1,
+		UserId:     1,
+		AuthToken:  "migrate",
+		RememberMe: false,
+		CreatedAt:  time.Now(),
+	}
+	err = database.Migrate(app, session)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

models/session.go

@@ -0,0 +1,153 @@
+package models
+
+import (
+	"GoWeb/app"
+	"crypto/rand"
+	"encoding/hex"
+	"log/slog"
+	"net/http"
+	"time"
+)
+
+type Session struct {
+	Id         int64
+	UserId     int64
+	AuthToken  string
+	RememberMe bool
+	CreatedAt  time.Time
+}
+
+const sessionColumnsNoId = "\"UserId\", \"AuthToken\",\"RememberMe\", \"CreatedAt\""
+const sessionColumns = "\"Id\", " + sessionColumnsNoId
+const sessionTable = "public.\"Session\""
+
+const (
+	selectSessionByAuthToken      = "SELECT " + sessionColumns + " FROM " + sessionTable + " WHERE \"AuthToken\" = $1"
+	selectAuthTokenIfExists       = "SELECT EXISTS(SELECT 1 FROM " + sessionTable + " WHERE \"AuthToken\" = $1)"
+	insertSession                 = "INSERT INTO " + sessionTable + " (" + sessionColumnsNoId + ") VALUES ($1, $2, $3, $4) RETURNING \"Id\""
+	deleteSessionByAuthToken      = "DELETE FROM " + sessionTable + " WHERE \"AuthToken\" = $1"
+	deleteSessionsOlderThan30Days = "DELETE FROM " + sessionTable + " WHERE \"CreatedAt\" < NOW() - INTERVAL '30 days'"
+	deleteSessionsOlderThan6Hours = "DELETE FROM " + sessionTable + " WHERE \"CreatedAt\" < NOW() - INTERVAL '6 hours' AND \"RememberMe\" = false"
+)
+
+// CreateSession creates a new session for a user
+func CreateSession(app *app.App, w http.ResponseWriter, userId int64, remember bool) (Session, error) {
+	session := Session{}
+	session.UserId = userId
+	session.AuthToken = generateAuthToken(app)
+	session.RememberMe = remember
+	session.CreatedAt = time.Now()
+
+	// If the AuthToken column for any user matches the token, set existingAuthToken to true
+	var existingAuthToken bool
+	err := app.Db.QueryRow(selectAuthTokenIfExists, session.AuthToken).Scan(&existingAuthToken)
+	if err != nil {
+		slog.Error("error checking for existing auth token" + err.Error())
+		return Session{}, err
+	}
+
+	// If duplicate token found, recursively call function until unique token is generated
+	if existingAuthToken {
+		slog.Warn("duplicate token found in sessions table, generating new token...")
+		return CreateSession(app, w, userId, remember)
+	}
+
+	err = app.Db.QueryRow(insertSession, session.UserId, session.AuthToken, session.RememberMe, session.CreatedAt).Scan(&session.Id)
+	if err != nil {
+		slog.Error("error inserting session into database")
+		return Session{}, err
+	}
+
+	createSessionCookie(app, w, session)
+	return session, nil
+}
+
+func GetSessionByAuthToken(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 {
+		return Session{}, err
+	}
+
+	return session, nil
+}
+
+// generateAuthToken generates a random 64-byte string
+func generateAuthToken(app *app.App) string {
+	b := make([]byte, 64)
+	_, err := rand.Read(b)
+	if err != nil {
+		slog.Error("error generating random bytes for auth token")
+	}
+
+	return hex.EncodeToString(b)
+}
+
+// createSessionCookie creates a new session cookie
+func createSessionCookie(app *app.App, w http.ResponseWriter, session Session) {
+	cookie := &http.Cookie{}
+	if session.RememberMe {
+		cookie = &http.Cookie{
+			Name:     "session",
+			Value:    session.AuthToken,
+			Path:     "/",
+			MaxAge:   2592000 * 1000, // 30 days in ms
+			HttpOnly: true,
+			Secure:   true,
+		}
+	} else {
+		cookie = &http.Cookie{
+			Name:     "session",
+			Value:    session.AuthToken,
+			Path:     "/",
+			MaxAge:   21600 * 1000, // 6 hours in ms
+			HttpOnly: true,
+			Secure:   true,
+		}
+	}
+
+	http.SetCookie(w, cookie)
+}
+
+// deleteSessionCookie deletes the session cookie
+func deleteSessionCookie(app *app.App, w http.ResponseWriter) {
+	cookie := &http.Cookie{
+		Name:   "session",
+		Value:  "",
+		Path:   "/",
+		MaxAge: -1,
+	}
+
+	http.SetCookie(w, cookie)
+}
+
+// DeleteSessionByAuthToken deletes a session from the database by AuthToken
+func DeleteSessionByAuthToken(app *app.App, w http.ResponseWriter, authToken string) error {
+	_, err := app.Db.Exec(deleteSessionByAuthToken, authToken)
+	if err != nil {
+		slog.Error("error deleting session from database")
+		return err
+	}
+
+	deleteSessionCookie(app, w)
+
+	return nil
+}
+
+// ScheduledSessionCleanup deletes expired sessions from the database
+func ScheduledSessionCleanup(app *app.App) {
+	// Delete sessions older than 30 days (remember me sessions)
+	_, err := app.Db.Exec(deleteSessionsOlderThan30Days)
+	if err != nil {
+		slog.Error("error deleting 30 day expired sessions from database" + err.Error())
+	}
+
+	// Delete sessions older than 6 hours
+	_, err = app.Db.Exec(deleteSessionsOlderThan6Hours)
+	if err != nil {
+		slog.Error("error deleting 6 hour expired sessions from database" + err.Error())
+	}
+
+	slog.Info("deleted expired sessions from database")
+}

models/user.go

@@ -0,0 +1,118 @@
+package models
+
+import (
+	"GoWeb/app"
+	"log/slog"
+	"net/http"
+	"time"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+type User struct {
+	Id        int64
+	Username  string
+	Password  string
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}
+
+const userColumnsNoId = "\"Username\", \"Password\", \"CreatedAt\", \"UpdatedAt\""
+const userColumns = "\"Id\", " + userColumnsNoId
+const userTable = "public.\"User\""
+
+const (
+	selectUserById       = "SELECT " + userColumns + " FROM " + userTable + " WHERE \"Id\" = $1"
+	selectUserByUsername = "SELECT " + userColumns + " FROM " + userTable + " WHERE \"Username\" = $1"
+	insertUser           = "INSERT INTO " + userTable + " (" + userColumnsNoId + ") VALUES ($1, $2, $3, $4) RETURNING \"Id\""
+)
+
+// GetCurrentUser finds the currently logged-in user by session cookie
+func GetCurrentUser(app *app.App, r *http.Request) (User, error) {
+	cookie, err := r.Cookie("session")
+	if err != nil {
+		return User{}, err
+	}
+
+	session, err := GetSessionByAuthToken(app, cookie.Value)
+	if err != nil {
+		return User{}, err
+	}
+
+	return GetUserById(app, session.UserId)
+}
+
+// GetUserById 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) {
+	user := User{}
+
+	err := app.Db.QueryRow(selectUserById, id).Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
+	if err != nil {
+		return User{}, err
+	}
+
+	return user, nil
+}
+
+// GetUserByUsername 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) {
+	user := User{}
+
+	err := app.Db.QueryRow(selectUserByUsername, username).Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
+	if err != nil {
+		return User{}, err
+	}
+
+	return user, nil
+}
+
+// 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)
+	if err != nil {
+		slog.Error("error hashing password: " + err.Error())
+		return User{}, err
+	}
+
+	var lastInsertId int64
+
+	err = app.Db.QueryRow(insertUser, username, string(hash), createdAt, updatedAt).Scan(&lastInsertId)
+	if err != nil {
+		slog.Error("error creating user row: " + err.Error())
+		return User{}, err
+	}
+
+	return GetUserById(app, lastInsertId)
+}
+
+// AuthenticateUser validates the password for the specified user
+func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, password string, remember bool) (Session, error) {
+	var user User
+
+	err := app.Db.QueryRow(selectUserByUsername, username).Scan(&user.Id, &user.Username, &user.Password, &user.CreatedAt, &user.UpdatedAt)
+	if err != nil {
+		slog.Info("user not found: " + username)
+		return Session{}, err
+	}
+
+	err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
+	if err != nil { // Failed to validate password, doesn't match
+		slog.Info("incorrect password:" + username)
+		return Session{}, err
+	} else {
+		return CreateSession(app, w, user.Id, remember)
+	}
+}
+
+// LogoutUser deletes the session cookie and AuthToken from the database
+func LogoutUser(app *app.App, w http.ResponseWriter, r *http.Request) {
+	cookie, err := r.Cookie("session")
+	if err != nil {
+		return
+	}
+
+	err = DeleteSessionByAuthToken(app, w, cookie.Value)
+	if err != nil {
+		return
+	}
+}

restclient/client.go

@@ -0,0 +1,65 @@
+package restclient
+
+import (
+	"bytes"
+	"encoding/json"
+	"mime/multipart"
+	"net/http"
+)
+
+// SendRequest sends an HTTP request to a URL and includes the specified headers and body.
+// A body can be nil for GET requests, a map[string]string for multipart/form-data requests,
+// or a struct for JSON requests
+func SendRequest(url string, method string, headers map[string]string, body interface{}) (http.Response, error) {
+	var reqBody *bytes.Buffer
+	var contentType string
+
+	switch v := body.(type) {
+	case nil:
+		reqBody = bytes.NewBuffer([]byte(""))
+	case map[string]string:
+		reqBody = &bytes.Buffer{}
+		writer := multipart.NewWriter(reqBody)
+		for key, value := range v {
+			err := writer.WriteField(key, value)
+			if err != nil {
+				return http.Response{}, err
+			}
+		}
+
+		err := writer.Close()
+		if err != nil {
+			return http.Response{}, err
+		}
+
+		contentType = writer.FormDataContentType()
+	default:
+		jsonBody, err := json.Marshal(body)
+		if err != nil {
+			return http.Response{}, err
+		}
+		reqBody = bytes.NewBuffer(jsonBody)
+		contentType = "application/json"
+	}
+
+	req, err := http.NewRequest(method, url, reqBody)
+	if err != nil {
+		return http.Response{}, err
+	}
+
+	if contentType != "" {
+		req.Header.Set("Content-Type", contentType)
+	}
+
+	for key, value := range headers {
+		req.Header.Add(key, value)
+	}
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return http.Response{}, err
+	}
+
+	return *resp, nil
+}

routes/get.go

@@ -0,0 +1,33 @@
+package routes
+
+import (
+	"GoWeb/app"
+	"GoWeb/controllers"
+	"io/fs"
+	"log/slog"
+	"net/http"
+)
+
+// Get defines all project get routes
+func Get(app *app.App) {
+	// Get controller struct initialize
+	getController := controllers.Get{
+		App: app,
+	}
+
+	// Serve static files
+	staticFS, err := fs.Sub(app.Res, "static")
+	if err != nil {
+		slog.Error(err.Error())
+		return
+	}
+	staticHandler := http.FileServer(http.FS(staticFS))
+	http.Handle("/static/", http.StripPrefix("/static/", staticHandler))
+	slog.Info("serving static files from embedded file system /static")
+
+	// Pages
+	http.HandleFunc("/", getController.ShowHome)
+	http.HandleFunc("/login", getController.ShowLogin)
+	http.HandleFunc("/register", getController.ShowRegister)
+	http.HandleFunc("/logout", getController.Logout)
+}

routes/getRoutes.go

@@ -1,26 +0,0 @@
-package routes
-
-import (
-	"GoWeb/app"
-	"GoWeb/controllers"
-	"log"
-	"net/http"
-)
-
-// GetRoutes defines all project get routes
-func GetRoutes(app *app.App) {
-	// Get controller struct initialize
-	getController := controllers.GetController{
-		App: app,
-	}
-
-	// Serve static files
-	http.Handle("/file/", http.FileServer(http.Dir("./static")))
-	log.Println("Serving static files from: ./static")
-
-	// Pages
-	http.HandleFunc("/", getController.ShowHome)
-	http.HandleFunc("/login", getController.ShowLogin)
-	http.HandleFunc("/register", getController.ShowRegister)
-	http.HandleFunc("/logout", getController.Logout)
-}

routes/post.go

@@ -0,0 +1,20 @@
+package routes
+
+import (
+	"GoWeb/app"
+	"GoWeb/controllers"
+	"GoWeb/middleware"
+	"net/http"
+)
+
+// Post defines all project post routes
+func Post(app *app.App) {
+	// Post controller struct initialize
+	postController := controllers.Post{
+		App: app,
+	}
+
+	// User authentication
+	http.HandleFunc("/register-handle", middleware.Csrf(postController.Register))
+	http.HandleFunc("/login-handle", middleware.Csrf(postController.Login))
+}

routes/postRoutes.go

@@ -1,19 +0,0 @@
-package routes
-
-import (
-	"GoWeb/app"
-	"GoWeb/controllers"
-	"net/http"
-)
-
-// PostRoutes defines all project post routes
-func PostRoutes(app *app.App) {
-	// Post controller struct initialize
-	postController := controllers.PostController{
-		App: app,
-	}
-
-	// User authentication
-	http.HandleFunc("/register-handle", postController.Register)
-	http.HandleFunc("/login-handle", postController.Login)
-}

security/csrf.go

@@ -3,25 +3,22 @@ package security
 import (
 	"crypto/rand"
 	"encoding/hex"
-	"log"
+	"log/slog"
 	"math"
 	"net/http"
 )
 
 // GenerateCsrfToken generates a csrf token and assigns it to a cookie for double submit cookie csrf protection
 func GenerateCsrfToken(w http.ResponseWriter, _ *http.Request) (string, error) {
-	// Generate random 64 character string (alpha-numeric)
 	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")
-		log.Println(err)
+		slog.Error("error creating random buffer for csrf token value" + err.Error())
 		return "", err
 	}
 	str := hex.EncodeToString(buff)
 	token := str[:64]
 
-	// Create session cookie, containing token
 	cookie := &http.Cookie{
 		Name:     "csrf_token",
 		Value:    token,
@@ -38,18 +35,14 @@ func GenerateCsrfToken(w http.ResponseWriter, _ *http.Request) (string, error) {
 
 // VerifyCsrfToken verifies the csrf token
 func VerifyCsrfToken(r *http.Request) (bool, error) {
-	// Get csrf cookie
 	cookie, err := r.Cookie("csrf_token")
 	if err != nil {
-		log.Println("Error getting csrf_token cookie")
-		log.Println(err)
+		slog.Info("unable to get csrf_token cookie" + err.Error())
 		return false, err
 	}
 
-	// Get csrf token from form
 	token := r.FormValue("csrf_token")
 
-	// Compare csrf cookie and csrf token
 	if cookie.Value == token {
 		return true, nil
 	}

static/css/style.css

@@ -0,0 +1,75 @@
+body {
+    font-family: Arial, sans-serif;
+    background-color: lightblue;
+    color: #333;
+    margin: 0;
+}
+
+.container {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    width: 80%;
+    padding: 20px;
+    margin: 0 auto;
+}
+
+.footer-container {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 80px;
+    background-color: lightblue;
+}
+
+footer {
+    color: #0077be;
+    font-size: 14px;
+}
+
+form label {
+    display: block;
+    font-weight: bold;
+    margin-bottom: 5px;
+}
+
+form input[type="text"],
+form input[type="password"] {
+    padding: 10px;
+    font-size: 16px;
+    border-radius: 5px;
+    border: none;
+    margin-bottom: 10px;
+    width: 100%;
+    box-sizing: border-box;
+}
+
+form input[type="submit"] {
+    display: inline-block;
+    padding: 10px 20px;
+    background-color: #0077be;
+    color: #fff;
+    border-radius: 5px;
+    text-decoration: none;
+    border: none;
+    cursor: pointer;
+}
+
+form input[type="submit"]:hover {
+    background-color: #005fa3;
+}
+
+h1, h2, h3, h4, h5, h6 {
+    font-weight: bold;
+    color: #333;
+    text-align: center;
+}
+
+a {
+    color: #0077be;
+    text-decoration: none;
+}
+
+a:hover {
+    text-decoration: underline;
+}

templates/base.html

@@ -3,11 +3,14 @@
 <head>
     <meta charset="UTF-8">
     <title>SiteName - {{ template "pageTitle" }}</title>
+    <link rel="stylesheet" href="/static/css/style.css">
 </head>
 <body>
 {{ template "content" . }}
+<div class="footer-container">
+    <footer>
+        <p>SiteName - Powered by GoWeb!</p>
+    </footer>
+</div>
 </body>
-<footer>
-    <p>SiteName - Powered by Go!</p>
-</footer>
-</html>
+</html>

templates/pages/login.html

@@ -1,13 +1,18 @@
 {{ define "pageTitle" }}Login{{ end }}
 
 {{ define "content" }}
-<form action="/login-handle" method="post">
-    <input name="csrf_token" type="hidden" value="{{ .CsrfToken }}">
+<h1>Login</h1>
+<div class="container">
+    <form action="/login-handle" method="post">
+        <input name="csrf_token" type="hidden" value="{{ .CsrfToken }}">
 
-    <label for="username">Username:</label><br>
-    <input id="username" name="username" type="text" value="John"><br><br>
-    <label for="password">Password:</label><br>
-    <input id="password" name="password" type="password"><br><br>
-    <input type="submit" value="Submit">
-</form>
+        <label for="username">Username:</label><br>
+        <input id="username" name="username" type="text" placeholder="John"><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 type="submit" value="Submit">
+    </form>
+</div>
 {{ end }}

templates/pages/register.html

@@ -1,13 +1,16 @@
 {{ define "pageTitle" }}Register{{ end }}
 
 {{ define "content" }}
-<form action="/register-handle" method="post">
-    <input name="csrf_token" type="hidden" value="{{ .CsrfToken }}">
+<h1>Register</h1>
+<div class="container">
+    <form action="/register-handle" method="post">
+        <input name="csrf_token" type="hidden" value="{{ .CsrfToken }}">
 
-    <label for="username">Username:</label><br>
-    <input id="username" name="username" type="text" value="John"><br><br>
-    <label for="password">Password:</label><br>
-    <input id="password" name="password" type="password"><br><br>
-    <input type="submit" value="Submit">
-</form>
+        <label for="username">Username:</label><br>
+        <input id="username" name="username" type="text" placeholder="John"><br><br>
+        <label for="password">Password:</label><br>
+        <input id="password" name="password" type="password"><br><br>
+        <input type="submit" value="Submit">
+    </form>
+</div>
 {{ end }}

templating/templateHelper.go

@@ -3,7 +3,7 @@ package templating
 import (
 	"GoWeb/app"
 	"html/template"
-	"log"
+	"log/slog"
 	"net/http"
 )
 
@@ -13,35 +13,35 @@ func RenderTemplate(app *app.App, w http.ResponseWriter, contentPath string, dat
 
 	templateContent, err := app.Res.ReadFile(templatePath)
 	if err != nil {
-		log.Println(err)
+		slog.Error(err.Error())
 		http.Error(w, err.Error(), 500)
 		return
 	}
 
 	t, err := template.New(templatePath).Parse(string(templateContent))
 	if err != nil {
-		log.Println(err)
+		slog.Error(err.Error())
 		http.Error(w, err.Error(), 500)
 		return
 	}
 
 	content, err := app.Res.ReadFile(contentPath)
 	if err != nil {
-		log.Println(err)
+		slog.Error(err.Error())
 		http.Error(w, err.Error(), 500)
 		return
 	}
 
 	t, err = t.Parse(string(content))
 	if err != nil {
-		log.Println(err)
+		slog.Error(err.Error())
 		http.Error(w, err.Error(), 500)
 		return
 	}
 
 	err = t.Execute(w, data)
 	if err != nil {
-		log.Println(err)
+		slog.Error(err.Error())
 		http.Error(w, err.Error(), 500)
 		return
 	}