admin.go

@@ -0,0 +1,95 @@
+package main
+
+import (
+	"context"
+	"net/http"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/robfig/cron/v3"
+	"github.com/sethvargo/go-password/password"
+	log "github.com/sirupsen/logrus"
+)
+
+type AdminConfig struct {
+	Users   []User        `json:"users"`
+	Secrets SecretsConfig `json:"secrets"`
+	Addr    string        `json:"addr"`
+}
+
+type SecretsConfig struct {
+	PasswordPepper    string `json:"password_pepper"`
+	ContextKey        string `json:"context_key"`
+	ContextExpiration int    `json:"context_expiration"`
+	ScryptN           int    `json:"scrypt_n"`
+	ScryptR           int    `json:"scrypt_r"`
+	ScryptP           int    `json:"scrypt_p"`
+}
+
+func NewAdmin() *AdminConfig {
+	pepper, _ := password.Generate(20, 5, 0, false, false)
+	ctx, _ := password.Generate(20, 5, 0, false, false)
+
+	a := &AdminConfig{
+		Addr: "0.0.0.0:8080",
+		Secrets: SecretsConfig{
+			PasswordPepper:    pepper,
+			ContextKey:        ctx,
+			ContextExpiration: 3600,
+			ScryptN:           32768,
+			ScryptR:           8,
+			ScryptP:           1,
+		},
+		Users: make([]User, 0),
+	}
+
+	return a
+}
+
+func (a *AdminConfig) Run() {
+	log.WithFields(log.Fields{}).Debugf("starting")
+	defer log.WithFields(log.Fields{}).Debugf("done")
+
+	// Create context that listens for the interrupt signal from the OS.
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	r := gin.Default()
+	r.GET("/ping", func(c *gin.Context) {
+		c.JSON(http.StatusOK, gin.H{
+			"message": "pong",
+		})
+	})
+
+	srv := &http.Server{
+		Addr:    ":8080",
+		Handler: r,
+	}
+
+	go func() {
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.WithFields(log.Fields{"call": "http.ListenAndServe", "attr": a.Addr, "error": err}).Errorf("")
+		}
+	}()
+
+	c := cron.New(cron.WithLocation(time.UTC))
+	c.AddFunc("00 * * *", func() { cfg.Run() })
+
+	// Listen for the interrupt signal.
+	<-ctx.Done()
+
+	// Restore default behavior on the interrupt signal and notify user of shutdown.
+	stop()
+	log.WithFields(log.Fields{"call": "stop"}).Warnf("shutting down")
+
+	// The context is used to inform the server it has 5 seconds to finish
+	// the request it is currently handling
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	if err := srv.Shutdown(ctx); err != nil {
+		log.WithFields(log.Fields{"call": "http.Shutdown", "error": err}).Errorf("shutting down")
+	}
+
+}

backup.go

@@ -51,22 +51,12 @@ func main() {
 	}
 
 	if *isDaemon {
-		cfg.Start(nil)
+		if cfg.Admin == nil {
-		server := NewServer(cfg.Admin.Addr, cfg.Admin.Username, cfg.Admin.Password)
+			cfg.Admin = NewAdmin()
-		server.Run()
-	} else {
-		e := NewEmail(time.Now())
-		cfg.Start(e)
-		defer cfg.Stop(e)
-
-		cfg.Run(e)
-
-		cfg.Cleanup(e)
-
-		if err := e.Send(); err != nil {
-			log.Printf("Cannot send email (%s)", err)
 		}
-
+		cfg.Admin.Run()
+	} else {
+		cfg.Run()
 		os.Exit(0)
 	}
 

config.go

@@ -19,19 +19,13 @@ type Config struct {
 	Email            EmailConfig          `json:"email"`
 	Apps             []AppConfig          `json:"apps"`
 	Timezone         string               `json:"timezone"`
+	Admin            *AdminConfig         `json:"admin"`
 	Debug            bool                 `json:"debug"`
-	Admin            AdminConfig          `json:"admin"`
 	box              map[string]*Box      `json:"-"`
 	apps             map[string]*App      `json:"-"`
 	timezone         *time.Location       `json:"-"`
 }
 
-type AdminConfig struct {
-	Addr     string `json:"addr"`
-	Username string `json:"username"`
-	Password string `json:"password"`
-}
-
 type BoxConfig struct {
 	Addr string `json:"addr"`
 	User string `json:"user"`
@@ -159,34 +153,31 @@ func (c *Config) LoadFile(path string) error {
 	return nil
 }
 
-func (c *Config) Start(e *Email) {
+// Run config
+func (c *Config) Run() {
 	log.WithFields(log.Fields{}).Debugf("starting")
 	defer log.WithFields(log.Fields{}).Debugf("done")
 
+	e := NewEmail(time.Now())
+
 	var wg sync.WaitGroup
+
+	// Setup boxes
 	for _, b := range c.box {
 		wg.Add(1)
 		go func(box *Box) {
 			defer wg.Done()
 			if err := box.Open(); err != nil {
 				log.WithFields(log.Fields{"name": box.name, "call": "Open", "error": err}).Errorf("")
-				if e != nil {
 				e.AddItem(fmt.Sprintf(" - Box : %s is down", box.name))
-				}
 				return
 			}
 		}(b)
 	}
 
 	wg.Wait()
-}
 
-// Run config
+	// Run each app
-func (c *Config) Run(e *Email) {
-	log.WithFields(log.Fields{}).Debugf("starting")
-	defer log.WithFields(log.Fields{}).Debugf("done")
-
-	var wg sync.WaitGroup
 	for _, a := range cfg.apps {
 		wg.Add(1)
 		go func(app *App) {
@@ -199,13 +190,7 @@ func (c *Config) Run(e *Email) {
 
 	wg.Wait()
 
-	return
+	// Cleanup
-}
-
-func (c *Config) Cleanup(e *Email) {
-	log.WithFields(log.Fields{}).Debugf("starting")
-	defer log.WithFields(log.Fields{}).Debugf("done")
-
 	for _, a := range cfg.apps {
 		for _, src := range a.sources {
 			if b, ok := c.box[src.Box()]; ok {
@@ -233,23 +218,15 @@ func (c *Config) Cleanup(e *Email) {
 					log.WithFields(log.Fields{"box": b.name, "fs": fs.path}).Warnf("not backed up")
 					e.AddItem(fmt.Sprintf(" - Src : Folder not backed up (%s)", b.name+":"+fs.path))
 				}
-				if len(fs.destApps) == 0 && len(fs.srcApps) == 0 && fs.managed {
+				if len(fs.destApps) == 0 && !fs.backedUp && fs.managed {
 					log.WithFields(log.Fields{"box": b.name, "fs": fs.path}).Warnf("managed")
 					e.AddItem(fmt.Sprintf(" - Dest : Folder managed (%s)", b.name+":"+fs.path))
 				}
-				if fs.managed {
-					log.WithFields(log.Fields{"box": b.name, "fs": fs.path, "src": len(fs.srcApps), "dest": len(fs.destApps)}).Warnf("managed")
-				}
 			}
 		}
 	}
 
-}
+	// Stop
-
-func (c *Config) Stop(e *Email) {
-	log.WithFields(log.Fields{}).Debugf("starting")
-	defer log.WithFields(log.Fields{}).Debugf("done")
-
 	for _, b := range c.box {
 		if err := b.Close(); err != nil {
 			log.WithFields(log.Fields{"name": b.name, "call": "Close", "error": err}).Errorf("")
@@ -261,4 +238,6 @@ func (c *Config) Stop(e *Email) {
 			log.WithFields(log.Fields{"call": "email.Send", "error": err}).Errorf("")
 		}
 	}
+
+	return
 }

cron.go

@@ -1 +0,0 @@
-package main

go.mod

@@ -4,6 +4,8 @@ go 1.16
 
 require (
 	github.com/gin-gonic/gin v1.9.1 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
+	github.com/sethvargo/go-password v0.2.0 // indirect
 	github.com/silenceper/pool v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/tailscale/hujson v0.0.0-20221223112325-20486734a56a // indirect

go.sum

@@ -44,6 +44,10 @@ github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjY
 github.com/pelletier/go-toml/v2 v2.0.8 h1:0ctb6s9mE31h0/lhu+J6OPmVeDxJn+kYnJc2jZR9tGQ=
 github.com/pelletier/go-toml/v2 v2.0.8/go.mod h1:vuYfssBdrU2XDZ9bYydBu6t+6a6PYNcZljzZR9VXg+4=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
+github.com/robfig/cron/v3 v3.0.1/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
+github.com/sethvargo/go-password v0.2.0 h1:BTDl4CC/gjf/axHMaDQtw507ogrXLci6XRiLc7i/UHI=
+github.com/sethvargo/go-password v0.2.0/go.mod h1:Ym4Mr9JXLBycr02MFuVQ/0JHidNetSgbzutTr3zsYXE=
 github.com/silenceper/pool v1.0.0 h1:JTCaA+U6hJAA0P8nCx+JfsRCHMwLTfatsm5QXelffmU=
 github.com/silenceper/pool v1.0.0/go.mod h1:3DN13bqAbq86Lmzf6iUXWEPIWFPOSYVfaoceFvilKKI=
 github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=

server.go

@@ -1,44 +0,0 @@
-package main
-
-import (
-	"net/http"
-
-	"github.com/gin-gonic/gin"
-)
-
-type Server struct {
-	Addr     string
-	Username string
-	Password string
-}
-
-func NewServer(addr, username, password string) *Server {
-	s := &Server{
-		Addr:     serverAddr,
-		Username: serverUsername,
-		Password: serverPassword,
-	}
-
-	if addr != "" {
-		s.Addr = addr
-	}
-	if username != "" {
-		s.Username = username
-	}
-	if password != "" {
-		s.Password = password
-	}
-
-	return s
-
-}
-
-func (s *Server) Run() {
-	r := gin.Default()
-	r.GET("/ping", func(c *gin.Context) {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "pong",
-		})
-	})
-	r.Run(s.Addr) // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
-}

user.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"crypto/hmac"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/crypto/scrypt"
+)
+
+type User struct {
+	Username string `json:"username"`
+	Salt     string `json:"salt"`
+	Passwd   string `json:"passwd"`
+}
+
+func NewUser(name, passwd string) (*User, error) {
+	log.WithFields(log.Fields{"name": name}).Debugf("starting")
+	defer log.WithFields(log.Fields{"name": name}).Debugf("done")
+
+	for _, v := range cfg.Admin.Users {
+		if v.Username == name {
+			err := errors.New("user already exists")
+			log.WithFields(log.Fields{"name": name, "error": err}).Errorf("")
+			return nil, err
+		}
+	}
+
+	u := &User{
+		Username: name,
+	}
+
+	salt := make([]byte, 32)
+	if _, err := rand.Read(salt); err != nil {
+		log.WithFields(log.Fields{"name": name, "call": "rand.Read", "error": err}).Errorf("")
+		return nil, err
+	}
+	u.Salt = hex.EncodeToString(salt)
+
+	if pass, err := u.HashPassword(passwd); err != nil {
+		log.WithFields(log.Fields{"name": name, "call": "HashPassword", "error": err}).Errorf("")
+		return nil, err
+	} else {
+		u.Passwd = hex.EncodeToString(pass)
+	}
+
+	return u, nil
+}
+
+func (u *User) HashPassword(passwd string) ([]byte, error) {
+	log.WithFields(log.Fields{}).Debugf("starting")
+	defer log.WithFields(log.Fields{}).Debugf("done")
+
+	//peppering the pass
+	hash := hmac.New(sha256.New, []byte(cfg.Admin.Secrets.PasswordPepper))
+	hash.Write([]byte(passwd))
+	hashPass := hash.Sum(nil)
+
+	//salting the hash
+	salt := make([]byte, 32)
+	if _, err := hex.Decode(salt, []byte(u.Salt)); err != nil {
+		log.WithFields(log.Fields{"call": "hex.Decode", "error": err}).Errorf("")
+		return nil, err
+	}
+
+	if h, err := scrypt.Key(hashPass, salt, cfg.Admin.Secrets.ScryptN, cfg.Admin.Secrets.ScryptR, cfg.Admin.Secrets.ScryptP, 32); err != nil {
+		log.WithFields(log.Fields{"call": "scrypt.Key", "error": err}).Errorf("")
+		return h, err
+	} else {
+		return h, nil
+	}
+
+}