Core app

.gitignore

@@ -13,3 +13,6 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+.idea
+application.conf
+bin

README.md

@@ -1 +1,41 @@
-# OTUS_HighLoad
+# Заготовка для социальной сети
+Цель: В результате выполнения ДЗ вы создадите базовый скелет социальной сети, который будет развиваться в дальнейших ДЗ.
+
+###В данном задании тренируются навыки:
+- декомпозиции предметной области;
+- построения элементарной архитектуры проекта
+  Требуется разработать создание и просмотр анект в социальной сети.
+
+###Функциональные требования:
+- Авторизация по паролю.
+- Страница регистрации, где указывается следующая информация:
+    - Имя
+    - Фамилия
+    - Возраст
+    - Пол
+    - Интересы
+    - Город
+- Страницы с анкетой.
+
+###Нефункциональные требования:
+- Любой язык программирования
+- В качестве базы данных использовать MySQL
+- Не использовать ORM
+- Программа должна представлять из себя монолитное приложение.
+- Не рекомендуется использовать следующие технологии:
+    - Репликация
+    - Шардинг
+    - Индексы
+    - Кэширование
+    
+Верстка не важна. Подойдет самая примитивная.
+Разместить приложение на любом хостинге. Например, heroku.
+
+ДЗ принимается в виде исходного кода на github и демонстрации проекта на хостинге.
+
+Критерии оценки: Оценка происходит по принципу зачет/незачет.
+
+###Требования:
+- Есть возможность регистрации, создавать персональные страницы, возможность подружиться, список друзей.
+- Отсутствуют SQL-инъекции.
+- Пароль хранится безопасно.

cmd/main.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"github.com/codegangsta/martini"
+	"github.com/codegangsta/martini-contrib/binding"
+	"github.com/codegangsta/martini-contrib/render"
+	"github.com/codegangsta/martini-contrib/sessionauth"
+	"github.com/codegangsta/martini-contrib/sessions"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/tiburon-777/OTUS_HighLoad/internal/application"
+	"github.com/tiburon-777/OTUS_HighLoad/internal/handlers"
+	"github.com/tiburon-777/OTUS_HighLoad/internal/models"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"time"
+)
+
+func init() {
+	http.DefaultClient.Timeout = time.Second * 30
+}
+
+func main() {
+	log.Println("Starting...")
+	app, err := application.New("application.conf", "APP")
+	if err != nil{
+		panic(err.Error())
+	}
+
+	m := martini.Classic()
+
+	m.Map(log.New(os.Stdout, "[app]", log.Lshortfile))
+	m.Map(app)
+	m.Use(sessions.Sessions("app", sessions.NewCookieStore([]byte("BfyfgIyngIOUgmOIUgt87thrg5RHn78b"))))
+	m.Use(sessionauth.SessionUser(models.GenerateAnonymousUser))
+	m.Use(render.Renderer(render.Options{
+		Directory: "templates",
+		Extensions: []string{".tmpl"},
+	}))
+
+	sessionauth.RedirectUrl = "/login"
+	sessionauth.RedirectParam = "next"
+
+	m.Get("/404", func(r render.Render) {
+		r.HTML(200, "404", nil)
+	})
+	m.Get("/login", func(r render.Render) {
+		r.HTML(200, "login", nil)
+	})
+	m.Post("/login", binding.Bind(models.UserModel{}), handlers.PostLogin)
+
+	m.Get("/logout", sessionauth.LoginRequired, func(session sessions.Session, user sessionauth.User, r render.Render) {
+		sessionauth.Logout(session, user)
+		r.Redirect("/")
+	})
+
+	// Регистрация пользователя, после которой нас перебрасывает на страницу логина
+	m.Get("/signup", handlers.GetSigned)
+	m.Post("/signup", handlers.PostSigned)
+
+	//Анкета текущего пользователя
+	m.Get("/", sessionauth.LoginRequired, handlers.GetHome)
+
+	m.Get("/list", sessionauth.LoginRequired, handlers.GetUserList)
+
+	m.NotFound(func(r render.Render) {
+		r.HTML(404, "404", nil)
+	})
+	if err := http.ListenAndServe(net.JoinHostPort(app.Config.Server.Address, app.Config.Server.Port), m); err != nil {
+		log.Fatalln(err.Error())
+	}
+}

go.mod

@@ -0,0 +1,18 @@
+module github.com/tiburon-777/OTUS_HighLoad
+
+go 1.15
+
+require (
+	github.com/BurntSushi/toml v0.3.1
+	github.com/codegangsta/inject v0.0.0-20150114235600-33e0aa1cb7c0 // indirect
+	github.com/codegangsta/martini v0.0.0-20170121215854-22fa46961aab
+	github.com/codegangsta/martini-contrib v0.0.0-20140208234550-8ce6181c2609
+	github.com/go-martini/martini v0.0.0-20170121215854-22fa46961aab // indirect
+	github.com/go-sql-driver/mysql v1.5.0
+	github.com/gorilla/context v1.1.1 // indirect
+	github.com/gorilla/sessions v1.2.1 // indirect
+	github.com/martini-contrib/cors v0.0.0-20141016003011-553b9208d353
+	github.com/stretchr/testify v1.6.1
+	github.com/tiburon-777/modules v0.0.0-20201210103219-a0362a8da783
+	gopkg.in/natefinch/lumberjack.v2 v2.0.0
+)

go.sum

@@ -0,0 +1,60 @@
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internal/application/application.go

@@ -0,0 +1,47 @@
+package application
+
+import (
+	"database/sql"
+	"fmt"
+	"github.com/codegangsta/martini"
+	"github.com/tiburon-777/OTUS_HighLoad/internal/models"
+	"github.com/tiburon-777/modules/core/config"
+)
+
+type App struct {
+	Config *models.Configuration
+	DB *sql.DB
+	martini.ClassicMartini
+}
+
+func New(configFile, envPrefix string) (App, error) {
+	conf, err := configure(configFile, envPrefix)
+	if err != nil{
+		return App{}, fmt.Errorf("can't apply config: %w\n",err)
+	}
+
+	db, err := sql.Open("mysql", conf.DSN.User+":"+conf.DSN.Pass+"@tcp("+conf.DSN.Host+":"+conf.DSN.Port+")/"+conf.DSN.Base)
+	if err != nil {
+		panic(err.Error())
+	}
+
+	return App{Config: conf, DB: db}, nil
+}
+
+func configure(fileName string, envPrefix string) (*models.Configuration,error) {
+	var conf models.Configuration
+	s := config.New(&conf)
+	if fileName != "" {
+		fmt.Printf("try to apply config from file %s...\n", fileName)
+		if err := s.SetFromFile(fileName); err != nil {
+			return &models.Configuration{}, fmt.Errorf("can't apply config from file: %w", err)
+		}
+	}
+	if envPrefix != "" {
+		fmt.Printf("try to apply config from environment...\n")
+		if err := s.SetFromEnv(envPrefix); err != nil {
+			return &models.Configuration{}, fmt.Errorf("can't apply envvars to config:%w", err)
+		}
+	}
+	return &conf, nil
+}

internal/handlers/handlers.go

@@ -0,0 +1,59 @@
+package handlers
+
+import (
+	"fmt"
+	"github.com/codegangsta/martini-contrib/render"
+	"github.com/codegangsta/martini-contrib/sessionauth"
+	"github.com/codegangsta/martini-contrib/sessions"
+	"github.com/tiburon-777/OTUS_HighLoad/internal/application"
+	"github.com/tiburon-777/OTUS_HighLoad/internal/models"
+	"net"
+	"net/http"
+)
+
+func GetHome(r render.Render) {
+	doc := map[string]interface{}{
+		"PageTitle":  "Вы имеете доступ к проектам",
+	}
+	r.HTML(200, "index", doc)
+}
+
+func GetSigned(r render.Render) {
+	doc := map[string]interface{}{
+		"PageTitle":  "page not exists",
+	}
+	r.HTML(200, "signin", doc)
+}
+
+func PostSigned(app application.App, r render.Render) {
+	r.Redirect(net.JoinHostPort(app.Config.Server.Address, app.Config.Server.Port)+"/login")
+}
+
+
+func GetUserList(r render.Render) {
+	doc := map[string]interface{}{
+		"PageTitle":  "page not exists",
+	}
+	r.HTML(200, "list", doc)
+}
+
+func PostLogin(app application.App, session sessions.Session, postedUser models.UserModel, r render.Render, req *http.Request) {
+	user := models.UserModel{}
+	query := fmt.Sprintf("SELECT * FROM users WHERE username=\"%s\" and password =\"%s\"", postedUser.Username, postedUser.Password)
+	err := app.DB.QueryRow(query).Scan(&user.Id, &user.Username, &user.Password)
+
+	if err != nil || user.Id==0 {
+		r.Redirect(sessionauth.RedirectUrl)
+		return
+	} else {
+		err := sessionauth.AuthenticateSession(session, &user)
+		if err != nil {
+			r.JSON(500, err)
+		}
+
+		params := req.URL.Query()
+		redirect := params.Get(sessionauth.RedirectParam)
+		r.Redirect(redirect)
+		return
+	}
+}

internal/models/config.go

@@ -0,0 +1,19 @@
+package models
+
+type Configuration struct {
+	Server Server
+	DSN DSN
+}
+
+type Server struct {
+	Address	string
+	Port	string
+}
+
+type DSN struct {
+	Host	string
+	Port	string
+	User	string
+	Pass	string
+	Base	string
+}

internal/models/user.go

@@ -0,0 +1,58 @@
+package models
+
+import (
+	"database/sql"
+	"fmt"
+	"github.com/codegangsta/martini-contrib/sessionauth"
+	"time"
+)
+
+type UserModel struct {
+	Id            int64  `form:"id" db:"id"`
+	Username      string `form:"name" db:"username"`
+	Password      string `form:"password" db:"password"`
+	Name        string		`form:"name" db:"name"`
+	Surname     string		`form:"surname" db:"surname"`
+	BirthDate   time.Time	`form:"birthdate" db:"birthdate"`
+	Male		bool		`form:"male" db:"male"`
+	City		string		`form:"city" db:"city"`
+	Interests	string		`form:"interests" db:"interests"`
+	authenticated bool   `form:"-" db:"-"`
+	Db			*sql.DB
+}
+
+func GenerateAnonymousUser() sessionauth.User {
+	return &UserModel{}
+}
+
+func (u *UserModel) Login() {
+	// Update last login time
+	// Add to logged-in user's list
+	// etc ...
+	u.authenticated = true
+}
+
+// Logout will preform any actions that are required to completely
+// logout a user.
+func (u *UserModel) Logout() {
+	// Remove from logged-in user's list
+	// etc ...
+	u.authenticated = false
+}
+
+func (u *UserModel) IsAuthenticated() bool {
+	return u.authenticated
+}
+
+func (u *UserModel) UniqueId() interface{} {
+	return u.Id
+}
+
+func (u *UserModel) GetById(id interface{}) error {
+	query := fmt.Sprintf("SELECT username FROM users WHERE id=%d", id)
+	err := u.Db.QueryRow(query).Err()
+	if err != nil {
+		return err
+	}
+	return nil
+}

templates/index.tmpl

@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<html>
+  <body>
+    <p>This is a private link!</p>
+    <p> Hello {{ .Username }}</p>
+    <a href="/logout">Logout</a><br/>
+  </body>
+</html>

templates/login.tmpl

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+  <body>
+    <h2>You must login!</h2>
+    <form method="POST">
+      <input type="text" placeholder="Username" name="name" /><br />
+      <input type="password" placeholder="Password" name="password" />
+      <button>Login</button>
+    </form>
+  </body>
+</html>