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RELEASES.md

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+# Releases
+
+## v0.3.0 - Ubuntu one-click lifecycle
+
+### Added
+- Ubuntu scripts for full lifecycle:
+  - `install.sh` (build + start)
+  - `uninstall.sh` (stop + remove containers, optional image cleanup)
+  - `reinstall.sh` (rebuild + restart)
+
+### Changed
+- `README.md` updated from Windows flow to Ubuntu flow.
+- Added executable step for scripts:
+  - `chmod +x install.sh uninstall.sh reinstall.sh`
+
+### Removed
+- Windows-specific scripts removed:
+  - `install.bat`, `uninstall.bat`, `reinstall.bat`
+  - `install.ps1`, `uninstall.ps1`, `reinstall.ps1`
+
+---
+
+## v0.2.0 - One-click automation (initial)
+
+### Added
+- Initial one-click lifecycle scripts (first implementation).
+- Documentation for install/uninstall/reinstall workflow.
+
+---
+
+## v0.1.0 - MVP RemnaWave VPN Panel
+
+### Added
+- Go web app with routes:
+  - `/` home page
+  - `/register` registration
+  - `/login` authorization
+  - `/logout` sign out
+  - `/cabinet` personal cabinet
+  - `/buy` VPN config purchase
+- Session auth via HTTP-only cookie token.
+- In-memory users and purchases storage for MVP.
+- Purchase integration with real external API using env key:
+  - `API_BASE_URL`
+  - `API_BUY_PATH`
+  - `API_KEY`
+- Docker support:
+  - `Dockerfile`
+  - `docker-compose.yml`
+- UI templates and styles:
+  - `templates/*.html`
+  - `static/styles.css`
+- Setup docs:
+  - `.env.example`
+  - `README.md`

docker-compose.yml

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+version: "3.9"
+services:
+  remnawave-panel:
+    build: .
+    container_name: remnawave-panel
+    ports:
+      - "8080:8080"
+    environment:
+      APP_ADDR: ":8080"
+      API_BASE_URL: "${API_BASE_URL}"
+      API_BUY_PATH: "${API_BUY_PATH:-/v1/configs/buy}"
+      API_KEY: "${API_KEY}"
+    restart: unless-stopped

install.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "== RemnaWave Panel: install/start =="
+
+if [[ ! -f .env ]]; then
+  cp .env.example .env
+  echo "Created .env from .env.example"
+  echo "Edit .env and set API_BASE_URL/API_KEY before first real use."
+fi
+
+docker compose up -d --build
+echo "Panel started: http://localhost:8080"

main.go

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+package main
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"html/template"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+type User struct {
+	Email    string
+	Password string
+}
+
+type Purchase struct {
+	Email     string
+	Plan      string
+	ConfigRaw string
+	CreatedAt time.Time
+}
+
+type Server struct {
+	mu        sync.RWMutex
+	users     map[string]User
+	sessions  map[string]string
+	purchases map[string][]Purchase
+	tpls      *template.Template
+	apiClient *APIClient
+}
+
+type APIClient struct {
+	BaseURL string
+	BuyPath string
+	APIKey  string
+	Client  *http.Client
+}
+
+type BuyConfigRequest struct {
+	Email string `json:"email"`
+	Plan  string `json:"plan"`
+}
+
+type BuyConfigResponse struct {
+	Config string `json:"config"`
+}
+
+func main() {
+	addr := getenv("APP_ADDR", ":8080")
+	baseURL := getenv("API_BASE_URL", "https://example.com")
+	buyPath := getenv("API_BUY_PATH", "/v1/configs/buy")
+	apiKey := getenv("API_KEY", "")
+
+	tpls, err := template.ParseGlob("templates/*.html")
+	if err != nil {
+		log.Fatalf("parse templates: %v", err)
+	}
+
+	s := &Server{
+		users:     map[string]User{},
+		sessions:  map[string]string{},
+		purchases: map[string][]Purchase{},
+		tpls:      tpls,
+		apiClient: &APIClient{
+			BaseURL: strings.TrimRight(baseURL, "/"),
+			BuyPath: "/" + strings.TrimLeft(buyPath, "/"),
+			APIKey:  apiKey,
+			Client: &http.Client{
+				Timeout: 15 * time.Second,
+			},
+		},
+	}
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", s.homeHandler)
+	mux.HandleFunc("/register", s.registerHandler)
+	mux.HandleFunc("/login", s.loginHandler)
+	mux.HandleFunc("/logout", s.logoutHandler)
+	mux.HandleFunc("/cabinet", s.cabinetHandler)
+	mux.HandleFunc("/buy", s.buyHandler)
+	mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static"))))
+
+	log.Printf("server started at %s", addr)
+	if err := http.ListenAndServe(addr, mux); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func (s *Server) homeHandler(w http.ResponseWriter, r *http.Request) {
+	email, _ := s.currentUser(r)
+	_ = s.render(w, "home.html", map[string]any{
+		"Title": "RemnaWave VPN",
+		"Email": email,
+	})
+}
+
+func (s *Server) registerHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method == http.MethodGet {
+		_ = s.render(w, "register.html", map[string]any{"Title": "Registration"})
+		return
+	}
+	if r.Method != http.MethodPost {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	email := strings.TrimSpace(r.FormValue("email"))
+	password := strings.TrimSpace(r.FormValue("password"))
+	if email == "" || password == "" {
+		_ = s.render(w, "register.html", map[string]any{
+			"Title": "Registration", "Error": "Fill all fields.",
+		})
+		return
+	}
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if _, ok := s.users[email]; ok {
+		_ = s.render(w, "register.html", map[string]any{
+			"Title": "Registration", "Error": "User already exists.",
+		})
+		return
+	}
+
+	s.users[email] = User{Email: email, Password: password}
+	http.Redirect(w, r, "/login", http.StatusSeeOther)
+}
+
+func (s *Server) loginHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method == http.MethodGet {
+		_ = s.render(w, "login.html", map[string]any{"Title": "Authorization"})
+		return
+	}
+	if r.Method != http.MethodPost {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	email := strings.TrimSpace(r.FormValue("email"))
+	password := strings.TrimSpace(r.FormValue("password"))
+
+	s.mu.RLock()
+	user, ok := s.users[email]
+	s.mu.RUnlock()
+	if !ok || user.Password != password {
+		_ = s.render(w, "login.html", map[string]any{
+			"Title": "Authorization", "Error": "Invalid credentials.",
+		})
+		return
+	}
+
+	token, err := newToken()
+	if err != nil {
+		http.Error(w, "token error", http.StatusInternalServerError)
+		return
+	}
+
+	s.mu.Lock()
+	s.sessions[token] = email
+	s.mu.Unlock()
+
+	http.SetCookie(w, &http.Cookie{
+		Name:     "session_token",
+		Value:    token,
+		Path:     "/",
+		HttpOnly: true,
+		SameSite: http.SameSiteLaxMode,
+		MaxAge:   86400 * 7,
+	})
+	http.Redirect(w, r, "/cabinet", http.StatusSeeOther)
+}
+
+func (s *Server) logoutHandler(w http.ResponseWriter, r *http.Request) {
+	cookie, err := r.Cookie("session_token")
+	if err == nil {
+		s.mu.Lock()
+		delete(s.sessions, cookie.Value)
+		s.mu.Unlock()
+	}
+
+	http.SetCookie(w, &http.Cookie{
+		Name:     "session_token",
+		Value:    "",
+		Path:     "/",
+		HttpOnly: true,
+		MaxAge:   -1,
+	})
+	http.Redirect(w, r, "/", http.StatusSeeOther)
+}
+
+func (s *Server) cabinetHandler(w http.ResponseWriter, r *http.Request) {
+	email, ok := s.currentUser(r)
+	if !ok {
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+		return
+	}
+
+	s.mu.RLock()
+	userPurchases := s.purchases[email]
+	s.mu.RUnlock()
+
+	_ = s.render(w, "cabinet.html", map[string]any{
+		"Title":     "Personal cabinet",
+		"Email":     email,
+		"Purchases": userPurchases,
+	})
+}
+
+func (s *Server) buyHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	email, ok := s.currentUser(r)
+	if !ok {
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+		return
+	}
+
+	plan := strings.TrimSpace(r.FormValue("plan"))
+	if plan == "" {
+		http.Redirect(w, r, "/cabinet", http.StatusSeeOther)
+		return
+	}
+
+	config, err := s.apiClient.BuyConfig(email, plan)
+	if err != nil {
+		s.mu.RLock()
+		userPurchases := s.purchases[email]
+		s.mu.RUnlock()
+
+		_ = s.render(w, "cabinet.html", map[string]any{
+			"Title":     "Personal cabinet",
+			"Email":     email,
+			"Purchases": userPurchases,
+			"Error":     "API error: " + err.Error(),
+		})
+		return
+	}
+
+	p := Purchase{
+		Email:     email,
+		Plan:      plan,
+		ConfigRaw: config,
+		CreatedAt: time.Now(),
+	}
+
+	s.mu.Lock()
+	s.purchases[email] = append(s.purchases[email], p)
+	s.mu.Unlock()
+
+	http.Redirect(w, r, "/cabinet", http.StatusSeeOther)
+}
+
+func (s *Server) currentUser(r *http.Request) (string, bool) {
+	cookie, err := r.Cookie("session_token")
+	if err != nil {
+		return "", false
+	}
+
+	s.mu.RLock()
+	email, ok := s.sessions[cookie.Value]
+	s.mu.RUnlock()
+	return email, ok
+}
+
+func (s *Server) render(w http.ResponseWriter, page string, data any) error {
+	if err := s.tpls.ExecuteTemplate(w, page, data); err != nil {
+		http.Error(w, "template error", http.StatusInternalServerError)
+		return err
+	}
+	return nil
+}
+
+func (a *APIClient) BuyConfig(email, plan string) (string, error) {
+	if a.APIKey == "" {
+		return "", errors.New("API_KEY is empty")
+	}
+
+	reqBody, err := json.Marshal(BuyConfigRequest{
+		Email: email,
+		Plan:  plan,
+	})
+	if err != nil {
+		return "", err
+	}
+
+	req, err := http.NewRequest(http.MethodPost, a.BaseURL+a.BuyPath, bytes.NewBuffer(reqBody))
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+a.APIKey)
+
+	resp, err := a.Client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		return "", errors.New("remote status: " + resp.Status)
+	}
+
+	var out BuyConfigResponse
+	if err := json.NewDecoder(resp.Body).Decode(&out); err != nil {
+		return "", err
+	}
+	if out.Config == "" {
+		return "", errors.New("empty config in response")
+	}
+	return out.Config, nil
+}
+
+func newToken() (string, error) {
+	buf := make([]byte, 32)
+	if _, err := rand.Read(buf); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(buf), nil
+}
+
+func getenv(k, fallback string) string {
+	v := strings.TrimSpace(os.Getenv(k))
+	if v == "" {
+		return fallback
+	}
+	return v
+}

reinstall.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "== RemnaWave Panel: reinstall =="
+docker compose down --remove-orphans
+docker compose up -d --build
+
+echo "Panel reinstalled: http://localhost:8080"

uninstall.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "== RemnaWave Panel: uninstall/stop =="
+docker compose down --remove-orphans
+
+read -r -p "Remove built Docker images too? (y/N): " remove_images
+if [[ "${remove_images:-N}" =~ ^[Yy]$ ]]; then
+  docker compose down --rmi local --remove-orphans
+fi
+
+echo "Panel removed."