Добавлены файлы проекта

4 years ago · 6a98ad5720
6 changed files with 215 additions and 0 deletions
--- a/TxtStore.go
+++ b/TxtStore.go
@ -0,0 +1,56 @@
+package main
+
+import (
+	"bufio"
+	"os"
+)
+
+type TxtStore string
+
+func (t *TxtStore) GetGuestbook() (Guestbook, error) {
+	var result Guestbook
+
+	file, err := os.Open(string(*t))
+	if os.IsNotExist(err) {
+		return result, nil
+	} else if err != nil {
+		return result, err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	var comments []string
+
+	for scanner.Scan() {
+		comments = append([]string{scanner.Text()}, comments...)
+	}
+
+	err = scanner.Err()
+	if err != nil {
+		return result, err
+	}
+
+	result.Comments = comments
+	result.Count = len(comments)
+
+	return result, nil
+}
+
+func (t *TxtStore) AddComment(comment string) error {
+	if comment == "" {
+		return nil
+	}
+
+	options := os.O_WRONLY | os.O_APPEND | os.O_CREATE
+	file, err := os.OpenFile(string(*t), options, os.FileMode(0600))
+	if err != nil {
+		return err
+	}
+
+	_, err = file.WriteString(comment + "\n")
+	if err != nil {
+		return err
+	}
+
+	return file.Close()
+}
--- a/go.mod
+++ b/go.mod
@ -0,0 +1,3 @@
+module git.atik.me/guestbook
+
+go 1.16
--- a/html/favicon.png
+++ b/html/favicon.png
--- a/html/index.html
+++ b/html/index.html
@ -0,0 +1,27 @@
+<!doctype html>
+
+<html lang="ru">
+<head>
+	<meta charset="utf-8">
+	<title>Книга отзывов</title>
+	<link rel="icon" type="image/png" sizes="256x256" href="/html/favicon.png">
+	<link rel="stylesheet" type="text/css" href="html/styles.css">
+</head>
+ 
+<body>
+	<div class="main">
+		<h1>Книга отзывов</h1>
+		
+		
+		<form action="/new" method="POST">
+			<p>Всего записей - {{ .Count }}</p>
+			<input type="text" name="comment" placeholder="Ваш отзыв...">
+			<input type="submit" value="Отправить">
+		</form>
+		
+		<ul>
+			{{ range .Comments }}<li>{{ . }}</li>{{ end}}
+		</ul>
+	</div>
+</body>
+</html>
--- a/html/styles.css
+++ b/html/styles.css
@ -0,0 +1,79 @@
+* {
+	margin: 0;
+	padding: 0;
+	
+	font-family: 'Raleway', serif;
+}
+
+body {
+	padding: 1%;
+	
+	color: #2E3E50;
+	background: #D8DDDD;
+	
+	text-align: center;
+	letter-spacing: 1px;
+}
+
+.main {
+	margin: auto;
+	padding: 1% 2%;
+	max-width: 800px;
+	border-radius: 5px;
+	background: #ECF0F1;
+	box-shadow: 0 2px 6px 0 rgba(0, 0, 0, .3);
+}
+
+form {
+	width: 100%;
+	display: flex;
+	margin: 2% 0;
+	
+}
+
+form p {
+	text-align: left;
+	padding: 1%;
+	font-size: 18px;
+}
+
+input {
+	padding: 1%;
+	border-radius: 4px;
+	border: 1px solid #CCC;
+	font-size: 18px;
+}
+
+input[type=text] {
+	flex-grow: 1;
+	
+	margin: 0 .5%;
+}
+
+input[type=submit] {
+	cursor: pointer;
+}
+
+input[type=submit]:hover {
+	background-color: #D8DDDD;
+}
+
+h1 {
+	font-family: 'Baloo Tamma', cursive;
+}
+
+li{
+	list-style-type: none;
+	
+	font-size: 18px;
+	min-width: 24%;
+	margin: 2% 0;
+	box-shadow: 0 2px 4px rgba(0, 0, 0, .2);
+	padding: 1% 2%;
+	background: #FFF;
+	box-sizing: border-box;
+}
+
+li:hover {
+	box-shadow:0 5px 10px rgba(0, 0, 0, .15);
+}
--- a/main.go
+++ b/main.go
@ -0,0 +1,50 @@
+package main
+
+import (
+	"html/template"
+	"log"
+	"net/http"
+)
+
+type Guestbook struct {
+	Comments []string
+	Count    int
+}
+
+func indexHandler(writer http.ResponseWriter, request *http.Request) {
+	html, err := template.ParseFiles("html/index.html")
+	check(err)
+
+	store := TxtStore("comments.txt")
+	guestbook, err := store.GetGuestbook()
+	check(err)
+
+	err = html.Execute(writer, guestbook)
+	check(err)
+}
+
+func newHandler(writer http.ResponseWriter, request *http.Request) {
+	comment := request.FormValue("comment")
+	store := TxtStore("comments.txt")
+
+	err := store.AddComment(comment)
+	check(err)
+
+	http.Redirect(writer, request, "/", http.StatusFound)
+}
+
+func main() {
+	http.HandleFunc("/", indexHandler)
+	http.HandleFunc("/new", newHandler)
+
+	http.Handle("/html/", http.StripPrefix("/html/", http.FileServer(http.Dir("html"))))
+
+	err := http.ListenAndServe("0.0.0.0:80", nil)
+	log.Fatal(err)
+}
+
+func check(err error) {
+	if err != nil {
+		log.Fatal(err)
+	}
+}