42211ef7 · 42211ef7 · 42211ef7 · 42211ef7 · 42211ef7 · 42211ef7
12 changed files
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
+stages:
+  - build
+  - test
+
+variables:
+  BUILD_DIR: "/tmp/$CI_CONCURRENT_PROJECT_ID"
+
+before_script:
+  - mkdir -p $BUILD_DIR/src
+  - cd $BUILD_DIR/src
+  - if [ -d $CI_PROJECT_DIR ]
+  - then
+  -    echo "soft link $CI_PROJECT_DIR exists"
+  - else
+  -    echo "creating soft link $CI_PROJECT_DIR"
+  -    ln -s $CI_PROJECT_DIR
+  - fi
+  - cd $CI_PROJECT_DIR
+
+build:
+  stage: build
+  tags:
+    - testing
+  script:
+    - echo $CI_JOB_STAGE
+    - go build
+
+test:
+  stage: test
+  tags:
+    - testing
+  script:
+    - echo $CI_JOB_STAGE
+    - go test -cover
+  coverage: '/coverage: \d+.\d+% of statements/'
--- a/.travis.yml
+++ b/.travis.yml
+os:
+  - linux
+
+language: go
+
+go:
+  - 1.14.x
+
+env:
+  global:
+    - GOTFLAGS="-race"
+  matrix:
+    - BUILD_DEPTYPE=gomod
+
+
+# disable travis install
+install:
+  - true
+
+script:
+  - bash <(curl -s https://raw.githubusercontent.com/ipfs/ci-helpers/master/travis-ci/run-standard-tests.sh)
+
+
+cache:
+  directories:
+    - $GOPATH/src/gx
+    - $GOPATH/pkg/mod
+    - $HOME/.cache/go-build
+
+notifications:
+  email: false
--- a/LICENSE
+++ b/LICENSE
+This project is transitioning from an MIT-only license to a dual MIT/Apache-2.0 license. 
+Unless otherwise noted, all code contributed prior to 2019-05-06 and not contributed by 
+a user listed in [this signoff issue](https://github.com/ipfs/go-ipfs/issues/6302) is 
+licensed under MIT-only. All new contributions (and past contributions since 2019-05-06) 
+are licensed under a dual MIT/Apache-2.0 license.
+
+MIT: https://www.opensource.org/licenses/mit
+Apache-2.0: https://www.apache.org/licenses/license-2.0
--- a/LICENSE-APACHE
+++ b/LICENSE-APACHE
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
--- a/LICENSE-MIT
+++ b/LICENSE-MIT
+The MIT License (MIT)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
--- a/README.md
+++ b/README.md
-# go-dms3-keystore
+# go-ipfs-keystore

+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://protocol.ai)
+[![](https://img.shields.io/badge/project-IPFS-blue.svg?style=flat-square)](http://ipfs.io/)
+[![Travis CI](https://travis-ci.com/ipfs/go-ipfs-keystore.svg?branch=master)](https://travis-ci.com/ipfs/go-ipfs-keystore)
+[![Go Reference](https://pkg.go.dev/badge/github.com/ipfs/go-ipfs-keystore.svg)](https://pkg.go.dev/github.com/ipfs/go-ipfs-keystore)
+
+
+> go-ipfs-keystore implements keystores for ipfs
+
+go-ipfs-keystore provides the Keystore interface for key management.  Keystores support adding, retrieving, and deleting keys as well as listing all keys and checking for membership.
+
+## Table of Contents
+
+- [Install](#install)
+- [Usage](#usage)
+- [Contribute](#contribute)
+- [License](#license)
+
+## Install
+
+`go-ipfs-keystore` works like a regular Go module:
+```
+> go get github.com/ipfs/go-ipfs-keystore
+```
+
+## Usage
+```
+import "github.com/ipfs/go-ipfs-keystore"
+```
+
+## Contribute
+
+PRs accepted.
+
+## License
+
+This project is dual-licensed under Apache 2.0 and MIT terms:
+
+- Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
--- a/go.mod
+++ b/go.mod
+module gitlab.dms3.io/dms3/public/go-dms3-keystore
+
+require (
+	gitlab.dms3.io/dms3/public/go-log v0.0.1
+	github.com/libp2p/go-libp2p-core v0.8.0
+)
+
+go 1.15
--- a/go.sum
+++ b/go.sum
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--- a/keystore.go
+++ b/keystore.go
+package keystore
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	base32 "encoding/base32"
+
+	ci "github.com/libp2p/go-libp2p-core/crypto"
+	logging "gitlab.dms3.io/dms3/public/go-log"
+)
+
+var log = logging.Logger("keystore")
+
+var codec = base32.StdEncoding.WithPadding(base32.NoPadding)
+
+// Keystore provides a key management interface
+type Keystore interface {
+	// Has returns whether or not a key exists in the Keystore
+	Has(string) (bool, error)
+	// Put stores a key in the Keystore, if a key with the same name already exists, returns ErrKeyExists
+	Put(string, ci.PrivKey) error
+	// Get retrieves a key from the Keystore if it exists, and returns ErrNoSuchKey
+	// otherwise.
+	Get(string) (ci.PrivKey, error)
+	// Delete removes a key from the Keystore
+	Delete(string) error
+	// List returns a list of key identifier
+	List() ([]string, error)
+}
+
+// ErrNoSuchKey is an error message returned when no key of a given name was found.
+var ErrNoSuchKey = fmt.Errorf("no key by the given name was found")
+
+// ErrKeyExists is an error message returned when a key already exists
+var ErrKeyExists = fmt.Errorf("key by that name already exists, refusing to overwrite")
+
+const keyFilenamePrefix = "key_"
+
+// FSKeystore is a keystore backed by files in a given directory stored on disk.
+type FSKeystore struct {
+	dir string
+}
+
+// NewFSKeystore returns a new filesystem-backed keystore.
+func NewFSKeystore(dir string) (*FSKeystore, error) {
+	err := os.Mkdir(dir, 0700)
+	switch {
+	case os.IsExist(err):
+	case err == nil:
+	default:
+		return nil, err
+	}
+	return &FSKeystore{dir}, nil
+}
+
+// Has returns whether or not a key exists in the Keystore
+func (ks *FSKeystore) Has(name string) (bool, error) {
+	name, err := encode(name)
+	if err != nil {
+		return false, err
+	}
+
+	kp := filepath.Join(ks.dir, name)
+
+	_, err = os.Stat(kp)
+
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	return err == nil, err
+}
+
+// Put stores a key in the Keystore, if a key with the same name already exists, returns ErrKeyExists
+func (ks *FSKeystore) Put(name string, k ci.PrivKey) error {
+	name, err := encode(name)
+	if err != nil {
+		return err
+	}
+
+	b, err := ci.MarshalPrivateKey(k)
+	if err != nil {
+		return err
+	}
+
+	kp := filepath.Join(ks.dir, name)
+
+	fi, err := os.OpenFile(kp, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0400)
+	if err != nil {
+		if os.IsExist(err) {
+			err = ErrKeyExists
+		}
+		return err
+	}
+	defer fi.Close()
+
+	_, err = fi.Write(b)
+
+	return err
+}
+
+// Get retrieves a key from the Keystore if it exists, and returns ErrNoSuchKey
+// otherwise.
+func (ks *FSKeystore) Get(name string) (ci.PrivKey, error) {
+	name, err := encode(name)
+	if err != nil {
+		return nil, err
+	}
+
+	kp := filepath.Join(ks.dir, name)
+
+	data, err := ioutil.ReadFile(kp)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil, ErrNoSuchKey
+		}
+		return nil, err
+	}
+
+	return ci.UnmarshalPrivateKey(data)
+}
+
+// Delete removes a key from the Keystore
+func (ks *FSKeystore) Delete(name string) error {
+	name, err := encode(name)
+	if err != nil {
+		return err
+	}
+
+	kp := filepath.Join(ks.dir, name)
+
+	return os.Remove(kp)
+}
+
+// List return a list of key identifier
+func (ks *FSKeystore) List() ([]string, error) {
+	dir, err := os.Open(ks.dir)
+	if err != nil {
+		return nil, err
+	}
+
+	dirs, err := dir.Readdirnames(0)
+	if err != nil {
+		return nil, err
+	}
+
+	list := make([]string, 0, len(dirs))
+
+	for _, name := range dirs {
+		decodedName, err := decode(name)
+		if err == nil {
+			list = append(list, decodedName)
+		} else {
+			log.Errorf("Ignoring keyfile with invalid encoded filename: %s", name)
+		}
+	}
+
+	return list, nil
+}
+
+func encode(name string) (string, error) {
+	if name == "" {
+		return "", fmt.Errorf("key name must be at least one character")
+	}
+
+	encodedName := codec.EncodeToString([]byte(name))
+	log.Debugf("Encoded key name: %s to: %s", name, encodedName)
+
+	return keyFilenamePrefix + strings.ToLower(encodedName), nil
+}
+
+func decode(name string) (string, error) {
+	if !strings.HasPrefix(name, keyFilenamePrefix) {
+		return "", fmt.Errorf("key's filename has unexpected format")
+	}
+
+	nameWithoutPrefix := strings.ToUpper(name[len(keyFilenamePrefix):])
+	decodedName, err := codec.DecodeString(nameWithoutPrefix)
+	if err != nil {
+		return "", err
+	}
+
+	log.Debugf("Decoded key name: %s to: %s", name, decodedName)
+
+	return string(decodedName), nil
+}
--- a/keystore_test.go
+++ b/keystore_test.go
+package keystore
+
+import (
+	"fmt"
+	"io/ioutil"
+	"math/rand"
+	"os"
+	"path/filepath"
+	"sort"
+	"testing"
+
+	ci "github.com/libp2p/go-libp2p-core/crypto"
+)
+
+type rr struct{}
+
+func (rr rr) Read(b []byte) (int, error) {
+	return rand.Read(b)
+}
+
+func privKeyOrFatal(t *testing.T) ci.PrivKey {
+	priv, _, err := ci.GenerateEd25519Key(rr{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return priv
+}
+
+func TestKeystoreBasics(t *testing.T) {
+	tdir, err := ioutil.TempDir("", "keystore-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ks, err := NewFSKeystore(tdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	l, err := ks.List()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(l) != 0 {
+		t.Fatal("expected no keys")
+	}
+
+	k1 := privKeyOrFatal(t)
+	k2 := privKeyOrFatal(t)
+	k3 := privKeyOrFatal(t)
+	k4 := privKeyOrFatal(t)
+
+	err = ks.Put("foo", k1)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = ks.Put("bar", k2)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	l, err = ks.List()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sort.Strings(l)
+	if l[0] != "bar" || l[1] != "foo" {
+		t.Fatal("wrong entries listed")
+	}
+
+	if err := assertDirContents(tdir, []string{"foo", "bar"}); err != nil {
+		t.Fatal(err)
+	}
+
+	err = ks.Put("foo", k3)
+	if err == nil {
+		t.Fatal("should not be able to overwrite key")
+	}
+
+	if err := assertDirContents(tdir, []string{"foo", "bar"}); err != nil {
+		t.Fatal(err)
+	}
+
+	exist, err := ks.Has("foo")
+	if !exist {
+		t.Fatal("should know it has a key named foo")
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	exist, err = ks.Has("nonexistingkey")
+	if exist {
+		t.Fatal("should know it doesn't have a key named nonexistingkey")
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Delete("bar"); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertDirContents(tdir, []string{"foo"}); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("beep", k3); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("boop", k4); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertDirContents(tdir, []string{"foo", "beep", "boop"}); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertGetKey(ks, "foo", k1); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertGetKey(ks, "beep", k3); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertGetKey(ks, "boop", k4); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("..///foo/", k1); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("", k1); err == nil {
+		t.Fatal("shouldn't be able to put a key with no name")
+	}
+
+	if err := ks.Put(".foo", k1); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestInvalidKeyFiles(t *testing.T) {
+	tdir, err := ioutil.TempDir("", "keystore-test")
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer os.RemoveAll(tdir)
+
+	ks, err := NewFSKeystore(tdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	key := privKeyOrFatal(t)
+
+	bytes, err := key.Bytes()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	encodedName, err := encode("valid")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = ioutil.WriteFile(filepath.Join(ks.dir, encodedName), bytes, 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = ioutil.WriteFile(filepath.Join(ks.dir, "z.invalid"), bytes, 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	l, err := ks.List()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sort.Strings(l)
+	if len(l) != 1 {
+		t.Fatal("wrong entry count")
+	}
+
+	if l[0] != "valid" {
+		t.Fatal("wrong entries listed")
+	}
+
+	exist, err := ks.Has("valid")
+	if !exist {
+		t.Fatal("should know it has a key named valid")
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestNonExistingKey(t *testing.T) {
+	tdir, err := ioutil.TempDir("", "keystore-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ks, err := NewFSKeystore(tdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	k, err := ks.Get("does-it-exist")
+	if err != ErrNoSuchKey {
+		t.Fatalf("expected: %s, got %s", ErrNoSuchKey, err)
+	}
+	if k != nil {
+		t.Fatalf("Get on nonexistant key should give nil")
+	}
+}
+
+func TestMakeKeystoreNoDir(t *testing.T) {
+	_, err := NewFSKeystore("/this/is/not/a/real/dir")
+	if err == nil {
+		t.Fatal("shouldnt be able to make a keystore in a nonexistant directory")
+	}
+}
+
+func assertGetKey(ks Keystore, name string, exp ci.PrivKey) error {
+	outK, err := ks.Get(name)
+	if err != nil {
+		return err
+	}
+
+	if !outK.Equals(exp) {
+		return fmt.Errorf("key we got out didn't match expectation")
+	}
+
+	return nil
+}
+
+func assertDirContents(dir string, exp []string) error {
+	finfos, err := ioutil.ReadDir(dir)
+	if err != nil {
+		return err
+	}
+
+	if len(finfos) != len(exp) {
+		return fmt.Errorf("expected %d directory entries", len(exp))
+	}
+
+	var names []string
+	for _, fi := range finfos {
+		decodedName, err := decode(fi.Name())
+		if err != nil {
+			return err
+		}
+		names = append(names, decodedName)
+	}
+
+	sort.Strings(names)
+	sort.Strings(exp)
+	if len(names) != len(exp) {
+		return fmt.Errorf("directory had wrong number of entries in it")
+	}
+
+	for i, v := range names {
+		if v != exp[i] {
+			return fmt.Errorf("had wrong entry in directory")
+		}
+	}
+	return nil
+}
--- a/memkeystore.go
+++ b/memkeystore.go
+package keystore
+
+import (
+	"errors"
+
+	ci "github.com/libp2p/go-libp2p-core/crypto"
+)
+
+// MemKeystore is an in memory keystore implementation that is not persisted to
+// any backing storage.
+type MemKeystore struct {
+	keys map[string]ci.PrivKey
+}
+
+// NewMemKeystore creates a MemKeystore.
+func NewMemKeystore() *MemKeystore {
+	return &MemKeystore{make(map[string]ci.PrivKey)}
+}
+
+// Has return whether or not a key exists in the Keystore
+func (mk *MemKeystore) Has(name string) (bool, error) {
+	_, ok := mk.keys[name]
+	return ok, nil
+}
+
+// Put store a key in the Keystore
+func (mk *MemKeystore) Put(name string, k ci.PrivKey) error {
+	if name == "" {
+		return errors.New("key name must be at least one character")
+	}
+
+	_, ok := mk.keys[name]
+	if ok {
+		return ErrKeyExists
+	}
+
+	mk.keys[name] = k
+	return nil
+}
+
+// Get retrieve a key from the Keystore
+func (mk *MemKeystore) Get(name string) (ci.PrivKey, error) {
+	k, ok := mk.keys[name]
+	if !ok {
+		return nil, ErrNoSuchKey
+	}
+
+	return k, nil
+}
+
+// Delete remove a key from the Keystore
+func (mk *MemKeystore) Delete(name string) error {
+	delete(mk.keys, name)
+	return nil
+}
+
+// List return a list of key identifier
+func (mk *MemKeystore) List() ([]string, error) {
+	out := make([]string, 0, len(mk.keys))
+	for k := range mk.keys {
+		out = append(out, k)
+	}
+	return out, nil
+}
--- a/memkeystore_test.go
+++ b/memkeystore_test.go
+package keystore
+
+import (
+	"sort"
+	"testing"
+)
+
+func TestMemKeyStoreBasics(t *testing.T) {
+	ks := NewMemKeystore()
+
+	l, err := ks.List()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(l) != 0 {
+		t.Fatal("expected no keys")
+	}
+
+	k1 := privKeyOrFatal(t)
+	k2 := privKeyOrFatal(t)
+	k3 := privKeyOrFatal(t)
+	k4 := privKeyOrFatal(t)
+
+	err = ks.Put("foo", k1)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = ks.Put("bar", k2)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	l, err = ks.List()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sort.Strings(l)
+	if l[0] != "bar" || l[1] != "foo" {
+		t.Fatal("wrong entries listed")
+	}
+
+	err = ks.Put("foo", k3)
+	if err == nil {
+		t.Fatal("should not be able to overwrite key")
+	}
+
+	exist, err := ks.Has("foo")
+	if !exist {
+		t.Fatal("should know it has a key named foo")
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	exist, err = ks.Has("nonexistingkey")
+	if exist {
+		t.Fatal("should know it doesn't have a key named nonexistingkey")
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Delete("bar"); err != nil {
+		t.Fatal(err)
+	}
+	if err := ks.Put("beep", k3); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("boop", k4); err != nil {
+		t.Fatal(err)
+	}
+	if err := assertGetKey(ks, "foo", k1); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertGetKey(ks, "beep", k3); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := assertGetKey(ks, "boop", k4); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("..///foo/", k1); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ks.Put("", k1); err == nil {
+		t.Fatal("shouldn't be able to put a key with no name")
+	}
+
+	if err := ks.Put(".foo", k1); err != nil {
+		t.Fatal(err)
+	}
+}