initial commit

pkg/db/blacklist.go

@@ -0,0 +1,36 @@
+package db
+
+import "git.giftfish.de/ston1th/jwt/v3"
+
+const blacklistPrefix = "blacklist/"
+
+func (db *DB) Add(sig string, exp int64) error {
+	return db.store.Set(blacklistPrefix+sig, exp)
+}
+
+func (db *DB) Remove(sig string) error {
+	return db.store.Delete(blacklistPrefix + sig)
+}
+
+func (db *DB) Check(sig string) (ok bool) {
+	if db.store.Get(blacklistPrefix+sig, nil) == nil {
+		return true
+	}
+	return false
+}
+
+func (db *DB) Map() (list jwt.BlacklistMap, err error) {
+	list = make(jwt.BlacklistMap)
+	err = db.store.ForEach(func(k string, v []byte) error {
+		if trim, ok := hasTrimPrefix(k, blacklistPrefix); ok {
+			var exp int64
+			err := db.store.Unmarshal(v, &exp)
+			if err != nil {
+				return err
+			}
+			list[trim] = exp
+		}
+		return nil
+	})
+	return
+}

pkg/db/db.go

@@ -0,0 +1,63 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package db
+
+import (
+	"git.giftfish.de/ston1th/docstore/pkg/core"
+	"git.giftfish.de/ston1th/docstore/pkg/index"
+	"git.giftfish.de/ston1th/docstore/pkg/store"
+	"git.giftfish.de/ston1th/godrop/v2"
+	"io"
+	"path/filepath"
+)
+
+const (
+	storeFile  = "store.db"
+	bcryptCost = 13
+)
+
+const blevePath = "bleve"
+
+type DB struct {
+	store store.Store
+	Index *index.Index
+}
+
+func New(cfg core.Config) (db *DB, err error) {
+	db = new(DB)
+	dbFile := filepath.Join(cfg.DataDir, storeFile)
+	err = godrop.Unveil(dbFile, "rwc")
+	if err != nil {
+		return
+	}
+	db.store, err = store.NewBoltStore(dbFile, nil)
+	if err != nil {
+		return
+	}
+	db.Index, err = index.NewIndex(filepath.Join(cfg.DataDir, blevePath))
+	if err != nil {
+		return
+	}
+	err = db.UnlockUser()
+	if err != nil {
+		return
+	}
+	err = db.RunMigrations()
+	return
+}
+
+func (db *DB) Dump(w io.Writer) error {
+	return db.store.Dump(w)
+}
+
+func (db *DB) Restore(r io.Reader) error {
+	return db.store.Restore(r)
+}
+
+func (db *DB) Close() (err error) {
+	err = db.store.Close()
+	if err != nil {
+		return
+	}
+	return db.Index.Close()
+}

pkg/db/helper.go

@@ -0,0 +1,24 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package db
+
+import "crypto/sha256"
+
+// Parts taken from strings.TrimPrefix
+func hasTrimPrefix(s, prefix string) (string, bool) {
+	if len(s) >= len(prefix) && s[0:len(prefix)] == prefix {
+		return s[len(prefix):], true
+	}
+	return s, false
+}
+
+func validatePassword(pw string) (b []byte) {
+	b = []byte(pw)
+	if len(pw) <= 56 {
+		return
+	}
+	hash := sha256.New()
+	hash.Write(b)
+	b = hash.Sum(nil)
+	return
+}

pkg/db/migration.go

@@ -0,0 +1,48 @@
+package db
+
+import (
+	"git.giftfish.de/ston1th/docstore/pkg/log"
+	"git.giftfish.de/ston1th/docstore/pkg/store"
+)
+
+const (
+	versionKey     = "version/version"
+	currentVersion = 1
+)
+
+type migrator func(*DB) (int, error)
+
+var migrators = []migrator{
+	func(db *DB) (int, error) {
+		return 0, nil
+	},
+}
+
+func (db *DB) RunMigrations() (err error) {
+	var version int
+	err = db.store.Get(versionKey, &version)
+	if err == store.ErrKeyNotFound {
+		err = db.store.Set(versionKey, currentVersion)
+		if err != nil {
+			return
+		}
+		err = db.store.Get(versionKey, &version)
+		if err != nil {
+			return
+		}
+	}
+	log.Printf("db: database version %d", version)
+	for version < currentVersion {
+		v := version + 1
+		log.Printf("db: running migration %d", v)
+		version, err = migrators[v](db)
+		if err != nil {
+			return
+		}
+		err = db.store.Set(versionKey, version)
+		if err != nil {
+			return
+		}
+	}
+	return
+}

pkg/db/user.go

@@ -0,0 +1,169 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package db
+
+import (
+	"errors"
+	"git.giftfish.de/ston1th/docstore/pkg/core"
+	"git.giftfish.de/ston1th/docstore/pkg/otp"
+	"golang.org/x/crypto/bcrypt"
+	"regexp"
+	"strings"
+)
+
+const (
+	userPrefix = "user/"
+	userKey    = "user"
+)
+
+var (
+	errWrongLogin = errors.New("db: wrong login")
+	errLocked     = errors.New("db: user locked")
+	errUserExists = errors.New("db: user already exist")
+
+	userRe = regexp.MustCompile("[^a-zA-Z0-9]+")
+)
+
+func (db *DB) UserExists() (b bool) {
+	db.store.ForEach(func(k string, _ []byte) error {
+		if strings.HasPrefix(k, userPrefix) {
+			b = true
+		}
+		return nil
+	})
+	return
+}
+
+func (db *DB) GetUserWithoutPassword() (u core.User, err error) {
+	u, err = db.GetUser()
+	u.Password = ""
+	return
+}
+
+func (db *DB) GetUserSecret() (secret string, err error) {
+	var user core.User
+	user, err = db.GetUser()
+	secret = user.Secret
+	return
+}
+
+func (db *DB) GetUser() (u core.User, err error) {
+	err = db.store.Get(userPrefix+userKey, &u)
+	return
+}
+
+func (db *DB) CreateUser(username, password string) error {
+	username = userRe.ReplaceAllString(username, "")
+	if db.UserExists() {
+		return errUserExists
+	}
+	hash, err := bcrypt.GenerateFromPassword(validatePassword(password), bcryptCost)
+	if err != nil {
+		return err
+	}
+	return db.store.Set(userPrefix+userKey, &core.User{
+		Username: username,
+		Password: string(hash),
+	})
+}
+
+func (db *DB) Login(username, password string) (u core.User, err error) {
+	u, err = db.GetUser()
+	if err != nil {
+		return
+	}
+	if u.Username != username {
+		err = errWrongLogin
+		return
+	}
+	if u.Locked == 3 {
+		err = errLocked
+		return
+	}
+	if err = bcrypt.CompareHashAndPassword([]byte(u.Password), validatePassword(password)); err != nil {
+		u.Locked++
+		err = db.store.Set(userPrefix+username, u)
+		if err != nil {
+			return
+		}
+		err = errWrongLogin
+		return
+	}
+	if u.Locked > 0 {
+		u.Locked = 0
+		err = db.store.Set(userPrefix+userKey, u)
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+func (db *DB) Totp(pin string) (u core.User, err error) {
+	u, err = db.GetUser()
+	if err != nil {
+		return
+	}
+	if u.Locked == 3 {
+		err = errLocked
+		return
+	}
+	if !otp.Validate(pin, u.Secret) {
+		u.Locked++
+		err = db.store.Set(userPrefix+userKey, u)
+		if err != nil {
+			return
+		}
+		err = errors.New("db: wrong pin")
+		return
+	}
+	if u.Locked > 0 {
+		u.Locked = 0
+		err = db.store.Set(userPrefix+userKey, u)
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+func (db *DB) UnlockUser() (err error) {
+	var u core.User
+	u, err = db.GetUser()
+	if err != nil {
+		return
+	}
+	if u.Locked > 0 {
+		u.Locked = 0
+		err = db.store.Set(userPrefix+userKey, u)
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+func (db *DB) UpdateUserSecret(secret string) error {
+	u, err := db.GetUser()
+	if err != nil {
+		return err
+	}
+	u.Secret = secret
+	return db.store.Set(userPrefix+userKey, u)
+}
+
+func (db *DB) UpdateUserPassword(password string) error {
+	if password == "" {
+		return errors.New("empty password")
+	}
+	u, err := db.GetUser()
+	if err != nil {
+		return err
+	}
+	hash, err := bcrypt.GenerateFromPassword(validatePassword(password), bcryptCost)
+	if err != nil {
+		return err
+	}
+	u.Password = string(hash)
+	return db.store.Set(userPrefix+userKey, u)
+}