Пример #1
0
func packIDTester(repo *repository.Repository, inChan <-chan backend.ID, errChan chan<- error, wg *sync.WaitGroup, done <-chan struct{}) {
	debug.Log("Checker.testPackID", "worker start")
	defer debug.Log("Checker.testPackID", "worker done")

	defer wg.Done()

	for id := range inChan {
		ok, err := repo.Backend().Test(backend.Data, id.String())
		if err != nil {
			err = PackError{ID: id, Err: err}
		} else {
			if !ok {
				err = PackError{ID: id, Err: errors.New("does not exist")}
			}
		}

		if err != nil {
			debug.Log("Checker.testPackID", "error checking for pack %s: %v", id.Str(), err)
			select {
			case <-done:
				return
			case errChan <- err:
			}

			continue
		}

		debug.Log("Checker.testPackID", "pack %s exists", id.Str())
	}
}
Пример #2
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func (node Node) createFileAt(path string, repo *repository.Repository) error {
	f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0600)
	defer f.Close()

	if err != nil {
		return errors.Annotate(err, "OpenFile")
	}

	var buf []byte
	for _, id := range node.Content {
		_, _, _, length, err := repo.Index().Lookup(id)
		if err != nil {
			return err
		}

		buf = buf[:cap(buf)]
		if uint(len(buf)) < length {
			buf = make([]byte, length)
		}

		buf, err := repo.LoadBlob(pack.Data, id, buf)
		if err != nil {
			return errors.Annotate(err, "Load")
		}

		_, err = f.Write(buf)
		if err != nil {
			return errors.Annotate(err, "Write")
		}
	}

	return nil
}
Пример #3
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func printTrees(repo *repository.Repository, wr io.Writer) error {
	done := make(chan struct{})
	defer close(done)

	trees := []backend.ID{}

	for _, idx := range repo.Index().All() {
		for blob := range idx.Each(nil) {
			if blob.Type != pack.Tree {
				continue
			}

			trees = append(trees, blob.ID)
		}
	}

	for _, id := range trees {
		tree, err := restic.LoadTree(repo, id)
		if err != nil {
			fmt.Fprintf(os.Stderr, "LoadTree(%v): %v", id.Str(), err)
			continue
		}

		fmt.Fprintf(wr, "tree_id: %v\n", id)

		prettyPrintJSON(wr, tree)
	}

	return nil
}
Пример #4
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func findLatestSnapshot(repo *repository.Repository, targets []string) (backend.ID, error) {
	var (
		latest   time.Time
		latestID backend.ID
		found    bool
	)

	for snapshotID := range repo.List(backend.Snapshot, make(chan struct{})) {
		snapshot, err := restic.LoadSnapshot(repo, snapshotID)
		if err != nil {
			return backend.ID{}, fmt.Errorf("Error listing snapshot: %v", err)
		}
		if snapshot.Time.After(latest) && samePaths(snapshot.Paths, targets) {
			latest = snapshot.Time
			latestID = snapshotID
			found = true
		}
	}

	if !found {
		return backend.ID{}, errNoSnapshotFound
	}

	return latestID, nil
}
Пример #5
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// FindSnapshot takes a string and tries to find a snapshot whose ID matches
// the string as closely as possible.
func FindSnapshot(repo *repository.Repository, s string) (backend.ID, error) {
	// find snapshot id with prefix
	name, err := backend.Find(repo.Backend(), backend.Snapshot, s)
	if err != nil {
		return nil, err
	}

	return backend.ParseID(name)
}
Пример #6
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func LoadSnapshot(repo *repository.Repository, id backend.ID) (*Snapshot, error) {
	sn := &Snapshot{id: id}
	err := repo.LoadJSONUnpacked(backend.Snapshot, id, sn)
	if err != nil {
		return nil, err
	}

	return sn, nil
}
Пример #7
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// LoadLock loads and unserializes a lock from a repository.
func LoadLock(repo *repository.Repository, id backend.ID) (*Lock, error) {
	lock := &Lock{}
	if err := repo.LoadJSONUnpacked(backend.Lock, id, lock); err != nil {
		return nil, err
	}
	lock.lockID = &id

	return lock, nil
}
Пример #8
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func createFakeLock(repo *repository.Repository, t time.Time, pid int) (backend.ID, error) {
	hostname, err := os.Hostname()
	if err != nil {
		return backend.ID{}, err
	}

	newLock := &restic.Lock{Time: t, PID: pid, Hostname: hostname}
	return repo.SaveJSONUnpacked(backend.Lock, &newLock)
}
Пример #9
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func TeardownRepo(t testing.TB, repo *repository.Repository) {
	if !TestCleanup {
		l := repo.Backend().(*local.Local)
		t.Logf("leaving local backend at %s\n", l.Location())
		return
	}

	OK(t, repo.Delete())
}
Пример #10
0
func LoadTree(repo *repository.Repository, id backend.ID) (*Tree, error) {
	tree := &Tree{}
	err := repo.LoadJSONPack(pack.Tree, id, tree)
	if err != nil {
		return nil, err
	}

	return tree, nil
}
Пример #11
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func (cmd CmdKey) addKey(repo *repository.Repository) error {
	id, err := repository.AddKey(repo, cmd.getNewPassword(), repo.Key())
	if err != nil {
		return fmt.Errorf("creating new key failed: %v\n", err)
	}

	cmd.global.Verbosef("saved new key as %s\n", id)

	return nil
}
Пример #12
0
func list(repo *repository.Repository, t backend.Type) (IDs []string) {
	done := make(chan struct{})
	defer close(done)

	for id := range repo.List(t, done) {
		IDs = append(IDs, id.String())
	}

	return IDs
}
Пример #13
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// FindBlobsForPacks returns the set of blobs contained in a pack of packs.
func FindBlobsForPacks(repo *repository.Repository, packs backend.IDSet) (backend.IDSet, error) {
	blobs := backend.NewIDSet()

	for packID := range packs {
		for _, packedBlob := range repo.Index().ListPack(packID) {
			blobs.Insert(packedBlob.ID)
		}
	}

	return blobs, nil
}
Пример #14
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func TeardownRepo(repo *repository.Repository) {
	if !TestCleanup {
		l := repo.Backend().(*local.Local)
		fmt.Printf("leaving local backend at %s\n", l.Location())
		return
	}

	err := repo.Delete()
	if err != nil {
		panic(err)
	}
}
Пример #15
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// saveRandomDataBlobs generates random data blobs and saves them to the repository.
func saveRandomDataBlobs(t testing.TB, repo *repository.Repository, num int, sizeMax int) {
	for i := 0; i < num; i++ {
		size := mrand.Int() % sizeMax

		buf := make([]byte, size)
		_, err := io.ReadFull(rand.Reader, buf)
		OK(t, err)

		_, err = repo.SaveAndEncrypt(pack.Data, buf, nil)
		OK(t, err)
	}
}
Пример #16
0
func (cmd CmdKey) deleteKey(repo *repository.Repository, name string) error {
	if name == repo.KeyName() {
		return errors.New("refusing to remove key currently used to access repository")
	}

	err := repo.Backend().Remove(backend.Key, name)
	if err != nil {
		return err
	}

	cmd.global.Verbosef("removed key %v\n", name)
	return nil
}
Пример #17
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// RemoveStaleLocks deletes all locks detected as stale from the repository.
func RemoveStaleLocks(repo *repository.Repository) error {
	return eachLock(repo, func(id backend.ID, lock *Lock, err error) error {
		// ignore locks that cannot be loaded
		if err != nil {
			return nil
		}

		if lock.Stale() {
			return repo.Backend().Remove(backend.Lock, id.String())
		}

		return nil
	})
}
Пример #18
0
func eachLock(repo *repository.Repository, f func(backend.ID, *Lock, error) error) error {
	done := make(chan struct{})
	defer close(done)

	for id := range repo.List(backend.Lock, done) {
		lock, err := LoadLock(repo, id)
		err = f(id, lock, err)
		if err != nil {
			return err
		}
	}

	return nil
}
Пример #19
0
// FindPacksForBlobs returns the set of packs that contain the blobs.
func FindPacksForBlobs(repo *repository.Repository, blobs backend.IDSet) (backend.IDSet, error) {
	packs := backend.NewIDSet()
	idx := repo.Index()
	for id := range blobs {
		blob, err := idx.Lookup(id)
		if err != nil {
			return nil, err
		}

		packs.Insert(blob.PackID)
	}

	return packs, nil
}
Пример #20
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// RepackBlobs reads all blobs in blobIDs from src and saves them into new pack
// files in dst. Source and destination repo may be the same.
func RepackBlobs(src, dst *repository.Repository, blobIDs backend.IDSet) (err error) {
	for id := range blobIDs {
		err = repackBlob(src, dst, id)
		if err != nil {
			return err
		}
	}

	err = dst.Flush()
	if err != nil {
		return err
	}

	return nil
}
Пример #21
0
func newFile(repo *repository.Repository, node *restic.Node) (*file, error) {
	sizes := make([]uint32, len(node.Content))
	for i, blobID := range node.Content {
		length, err := repo.Index().LookupSize(blobID)
		if err != nil {
			return nil, err
		}
		sizes[i] = uint32(length)
	}

	return &file{
		repo:  repo,
		node:  node,
		sizes: sizes,
		blobs: make([][]byte, len(node.Content)),
	}, nil
}
Пример #22
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// loadSnapshotTreeIDs loads all snapshots from backend and returns the tree IDs.
func loadSnapshotTreeIDs(repo *repository.Repository) (backend.IDs, []error) {
	var trees struct {
		IDs backend.IDs
		sync.Mutex
	}

	var errs struct {
		errs []error
		sync.Mutex
	}

	snapshotWorker := func(strID string, done <-chan struct{}) error {
		id, err := backend.ParseID(strID)
		if err != nil {
			return err
		}

		debug.Log("Checker.Snaphots", "load snapshot %v", id.Str())

		treeID, err := loadTreeFromSnapshot(repo, id)
		if err != nil {
			errs.Lock()
			errs.errs = append(errs.errs, err)
			errs.Unlock()
			return nil
		}

		debug.Log("Checker.Snaphots", "snapshot %v has tree %v", id.Str(), treeID.Str())
		trees.Lock()
		trees.IDs = append(trees.IDs, treeID)
		trees.Unlock()

		return nil
	}

	err := repository.FilesInParallel(repo.Backend(), backend.Snapshot, defaultParallelism, snapshotWorker)
	if err != nil {
		errs.errs = append(errs.errs, err)
	}

	return trees.IDs, errs.errs
}
Пример #23
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// Clear removes information from the cache that isn't present in the repository any more.
func (c *Cache) Clear(repo *repository.Repository) error {
	list, err := c.list(backend.Snapshot)
	if err != nil {
		return err
	}

	for _, entry := range list {
		debug.Log("Cache.Clear", "found entry %v", entry)

		if ok, err := repo.Backend().Test(backend.Snapshot, entry.ID.String()); !ok || err != nil {
			debug.Log("Cache.Clear", "snapshot %v doesn't exist any more, removing %v", entry.ID, entry)

			err = c.purge(backend.Snapshot, entry.Subtype, entry.ID)
			if err != nil {
				return err
			}
		}
	}

	return nil
}
Пример #24
0
func printSnapshots(repo *repository.Repository, wr io.Writer) error {
	done := make(chan struct{})
	defer close(done)

	for id := range repo.List(backend.Snapshot, done) {
		snapshot, err := restic.LoadSnapshot(repo, id)
		if err != nil {
			fmt.Fprintf(os.Stderr, "LoadSnapshot(%v): %v", id.Str(), err)
			continue
		}

		fmt.Fprintf(wr, "snapshot_id: %v\n", id)

		err = prettyPrintJSON(wr, snapshot)
		if err != nil {
			return err
		}
	}

	return nil
}
Пример #25
0
func (cmd CmdKey) listKeys(s *repository.Repository) error {
	tab := NewTable()
	tab.Header = fmt.Sprintf(" %-10s  %-10s  %-10s  %s", "ID", "User", "Host", "Created")
	tab.RowFormat = "%s%-10s  %-10s  %-10s  %s"

	plen, err := s.PrefixLength(backend.Key)
	if err != nil {
		return err
	}

	done := make(chan struct{})
	defer close(done)

	for id := range s.List(backend.Key, done) {
		k, err := repository.LoadKey(s, id.String())
		if err != nil {
			cmd.global.Warnf("LoadKey() failed: %v\n", err)
			continue
		}

		var current string
		if id.String() == s.KeyName() {
			current = "*"
		} else {
			current = " "
		}
		tab.Rows = append(tab.Rows, []interface{}{current, id.String()[:plen],
			k.Username, k.Hostname, k.Created.Format(TimeFormat)})
	}

	return tab.Write(cmd.global.stdout)
}
Пример #26
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// repackBlob loads a single blob from src and saves it in dst.
func repackBlob(src, dst *repository.Repository, id backend.ID) error {
	blob, err := src.Index().Lookup(id)
	if err != nil {
		return err
	}

	debug.Log("RepackBlobs", "repacking blob %v, len %v", id.Str(), blob.PlaintextLength())

	buf := make([]byte, 0, blob.PlaintextLength())
	buf, err = src.LoadBlob(blob.Type, id, buf)
	if err != nil {
		return err
	}

	if uint(len(buf)) != blob.PlaintextLength() {
		debug.Log("RepackBlobs", "repack blob %v: len(buf) isn't equal to length: %v = %v", id.Str(), len(buf), blob.PlaintextLength())
		return errors.New("LoadBlob returned wrong data, len() doesn't match")
	}

	_, err = dst.SaveAndEncrypt(blob.Type, buf, &id)
	if err != nil {
		return err
	}

	return nil
}
Пример #27
0
func (node Node) createFileAt(path string, repo *repository.Repository) error {
	f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0600)
	defer f.Close()

	if err != nil {
		return errors.Annotate(err, "OpenFile")
	}

	for _, id := range node.Content {
		buf, err := repo.LoadBlob(pack.Data, id)
		if err != nil {
			return errors.Annotate(err, "Load")
		}

		_, err = f.Write(buf)
		if err != nil {
			return errors.Annotate(err, "Write")
		}
	}

	return nil
}
Пример #28
0
func (cmd CmdKey) changePassword(repo *repository.Repository) error {
	id, err := repository.AddKey(repo, cmd.getNewPassword(), repo.Key())
	if err != nil {
		return fmt.Errorf("creating new key failed: %v\n", err)
	}

	err = repo.Backend().Remove(backend.Key, repo.KeyName())
	if err != nil {
		return err
	}

	cmd.global.Verbosef("saved new key as %s\n", id)

	return nil
}
Пример #29
0
// checkPack reads a pack and checks the integrity of all blobs.
func checkPack(r *repository.Repository, id backend.ID) error {
	debug.Log("Checker.checkPack", "checking pack %v", id.Str())
	rd, err := r.Backend().Get(backend.Data, id.String())
	if err != nil {
		return err
	}

	buf, err := ioutil.ReadAll(rd)
	if err != nil {
		return err
	}

	err = rd.Close()
	if err != nil {
		return err
	}

	unpacker, err := pack.NewUnpacker(r.Key(), bytes.NewReader(buf))
	if err != nil {
		return err
	}

	var errs []error
	for i, blob := range unpacker.Entries {
		debug.Log("Checker.checkPack", "  check blob %d: %v", i, blob.ID.Str())

		plainBuf := make([]byte, blob.Length)
		plainBuf, err = crypto.Decrypt(r.Key(), plainBuf, buf[blob.Offset:blob.Offset+blob.Length])
		if err != nil {
			debug.Log("Checker.checkPack", "  error decrypting blob %v: %v", blob.ID.Str(), err)
			errs = append(errs, fmt.Errorf("blob %v: %v", i, err))
			continue
		}

		hash := backend.Hash(plainBuf)
		if !hash.Equal(blob.ID) {
			debug.Log("Checker.checkPack", "  ID does not match, want %v, got %v", blob.ID.Str(), hash.Str())
			errs = append(errs, fmt.Errorf("ID does not match, want %v, got %v", blob.ID.Str(), hash.Str()))
			continue
		}
	}

	if len(errs) > 0 {
		return fmt.Errorf("pack %v contains %v errors: %v", id.Str(), len(errs), errs)
	}

	return nil
}
Пример #30
0
func fsckFile(global CmdFsck, repo *repository.Repository, IDs []backend.ID) (uint64, error) {
	debug.Log("restic.fsckFile", "checking file %v", IDs)
	var bytes uint64

	for _, id := range IDs {
		debug.Log("restic.fsck", "  checking data blob %v\n", id)

		// test if blob is in the index
		packID, tpe, _, length, err := repo.Index().Lookup(id)
		if err != nil {
			return 0, fmt.Errorf("storage for blob %v (%v) not found", id, tpe)
		}

		bytes += uint64(length - crypto.Extension)
		debug.Log("restic.fsck", "  blob found in pack %v\n", packID)

		if global.CheckData {
			// load content
			_, err := repo.LoadBlob(pack.Data, id)
			if err != nil {
				return 0, err
			}
		} else {
			// test if pack for data blob is there
			ok, err := repo.Backend().Test(backend.Data, packID.String())
			if err != nil {
				return 0, err
			}

			if !ok {
				return 0, fmt.Errorf("data blob %v not found", id)
			}
		}

		// if orphan check is active, record storage id
		if global.o_data != nil {
			debug.Log("restic.fsck", "  recording blob %v as used\n", id)
			global.o_data.Insert(id)
		}
	}

	return bytes, nil
}