1611 lines
43 KiB
Go
1611 lines
43 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package model
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import (
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"bufio"
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"crypto/tls"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"os"
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"path/filepath"
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"strings"
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stdsync "sync"
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"time"
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"github.com/syncthing/protocol"
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"github.com/syncthing/syncthing/internal/config"
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"github.com/syncthing/syncthing/internal/db"
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"github.com/syncthing/syncthing/internal/events"
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"github.com/syncthing/syncthing/internal/ignore"
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"github.com/syncthing/syncthing/internal/osutil"
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"github.com/syncthing/syncthing/internal/scanner"
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"github.com/syncthing/syncthing/internal/stats"
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"github.com/syncthing/syncthing/internal/symlinks"
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"github.com/syncthing/syncthing/internal/sync"
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"github.com/syncthing/syncthing/internal/versioner"
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"github.com/syndtr/goleveldb/leveldb"
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)
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// How many files to send in each Index/IndexUpdate message.
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const (
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indexTargetSize = 250 * 1024 // Aim for making index messages no larger than 250 KiB (uncompressed)
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indexPerFileSize = 250 // Each FileInfo is approximately this big, in bytes, excluding BlockInfos
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IndexPerBlockSize = 40 // Each BlockInfo is approximately this big
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indexBatchSize = 1000 // Either way, don't include more files than this
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)
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type service interface {
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Serve()
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Stop()
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Jobs() ([]string, []string) // In progress, Queued
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BringToFront(string)
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setState(state folderState)
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setError(err error)
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getState() (folderState, time.Time, error)
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}
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type Model struct {
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cfg *config.Wrapper
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db *leveldb.DB
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finder *db.BlockFinder
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progressEmitter *ProgressEmitter
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id protocol.DeviceID
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shortID uint64
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deviceName string
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clientName string
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clientVersion string
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folderCfgs map[string]config.FolderConfiguration // folder -> cfg
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folderFiles map[string]*db.FileSet // folder -> files
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folderDevices map[string][]protocol.DeviceID // folder -> deviceIDs
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deviceFolders map[protocol.DeviceID][]string // deviceID -> folders
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deviceStatRefs map[protocol.DeviceID]*stats.DeviceStatisticsReference // deviceID -> statsRef
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folderIgnores map[string]*ignore.Matcher // folder -> matcher object
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folderRunners map[string]service // folder -> puller or scanner
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folderStatRefs map[string]*stats.FolderStatisticsReference // folder -> statsRef
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fmut sync.RWMutex // protects the above
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protoConn map[protocol.DeviceID]protocol.Connection
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rawConn map[protocol.DeviceID]io.Closer
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deviceVer map[protocol.DeviceID]string
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pmut sync.RWMutex // protects protoConn and rawConn
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addedFolder bool
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started bool
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}
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var (
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SymlinkWarning = stdsync.Once{}
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)
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// NewModel creates and starts a new model. The model starts in read-only mode,
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// where it sends index information to connected peers and responds to requests
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// for file data without altering the local folder in any way.
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func NewModel(cfg *config.Wrapper, id protocol.DeviceID, deviceName, clientName, clientVersion string, ldb *leveldb.DB) *Model {
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m := &Model{
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cfg: cfg,
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db: ldb,
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finder: db.NewBlockFinder(ldb, cfg),
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progressEmitter: NewProgressEmitter(cfg),
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id: id,
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shortID: id.Short(),
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deviceName: deviceName,
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clientName: clientName,
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clientVersion: clientVersion,
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folderCfgs: make(map[string]config.FolderConfiguration),
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folderFiles: make(map[string]*db.FileSet),
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folderDevices: make(map[string][]protocol.DeviceID),
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deviceFolders: make(map[protocol.DeviceID][]string),
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deviceStatRefs: make(map[protocol.DeviceID]*stats.DeviceStatisticsReference),
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folderIgnores: make(map[string]*ignore.Matcher),
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folderRunners: make(map[string]service),
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folderStatRefs: make(map[string]*stats.FolderStatisticsReference),
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protoConn: make(map[protocol.DeviceID]protocol.Connection),
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rawConn: make(map[protocol.DeviceID]io.Closer),
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deviceVer: make(map[protocol.DeviceID]string),
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fmut: sync.NewRWMutex(),
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pmut: sync.NewRWMutex(),
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}
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if cfg.Options().ProgressUpdateIntervalS > -1 {
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go m.progressEmitter.Serve()
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}
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return m
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}
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// Starts deadlock detector on the models locks which causes panics in case
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// the locks cannot be acquired in the given timeout period.
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func (m *Model) StartDeadlockDetector(timeout time.Duration) {
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l.Infof("Starting deadlock detector with %v timeout", timeout)
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deadlockDetect(m.fmut, timeout)
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deadlockDetect(m.pmut, timeout)
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}
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// StartRW starts read/write processing on the current model. When in
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// read/write mode the model will attempt to keep in sync with the cluster by
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// pulling needed files from peer devices.
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func (m *Model) StartFolderRW(folder string) {
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m.fmut.Lock()
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cfg, ok := m.folderCfgs[folder]
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if !ok {
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panic("cannot start nonexistent folder " + folder)
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}
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_, ok = m.folderRunners[folder]
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if ok {
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panic("cannot start already running folder " + folder)
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}
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p := newRWFolder(m, m.shortID, cfg)
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m.folderRunners[folder] = p
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m.fmut.Unlock()
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if len(cfg.Versioning.Type) > 0 {
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factory, ok := versioner.Factories[cfg.Versioning.Type]
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if !ok {
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l.Fatalf("Requested versioning type %q that does not exist", cfg.Versioning.Type)
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}
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p.versioner = factory(folder, cfg.Path(), cfg.Versioning.Params)
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}
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if cfg.LenientMtimes {
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l.Infof("Folder %q is running with LenientMtimes workaround. Syncing may not work properly.", folder)
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}
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go p.Serve()
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}
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// StartRO starts read only processing on the current model. When in
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// read only mode the model will announce files to the cluster but not
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// pull in any external changes.
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func (m *Model) StartFolderRO(folder string) {
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m.fmut.Lock()
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cfg, ok := m.folderCfgs[folder]
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if !ok {
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panic("cannot start nonexistent folder " + folder)
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}
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_, ok = m.folderRunners[folder]
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if ok {
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panic("cannot start already running folder " + folder)
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}
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s := newROFolder(m, folder, time.Duration(cfg.RescanIntervalS)*time.Second)
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m.folderRunners[folder] = s
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m.fmut.Unlock()
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go s.Serve()
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}
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type ConnectionInfo struct {
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protocol.Statistics
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Address string
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ClientVersion string
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}
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func (info ConnectionInfo) MarshalJSON() ([]byte, error) {
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return json.Marshal(map[string]interface{}{
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"at": info.At,
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"inBytesTotal": info.InBytesTotal,
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"outBytesTotal": info.OutBytesTotal,
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"address": info.Address,
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"clientVersion": info.ClientVersion,
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})
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}
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// ConnectionStats returns a map with connection statistics for each connected device.
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func (m *Model) ConnectionStats() map[string]interface{} {
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type remoteAddrer interface {
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RemoteAddr() net.Addr
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}
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m.pmut.RLock()
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m.fmut.RLock()
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var res = make(map[string]interface{})
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conns := make(map[string]ConnectionInfo, len(m.protoConn))
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for device, conn := range m.protoConn {
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ci := ConnectionInfo{
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Statistics: conn.Statistics(),
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ClientVersion: m.deviceVer[device],
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}
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if nc, ok := m.rawConn[device].(remoteAddrer); ok {
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ci.Address = nc.RemoteAddr().String()
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}
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conns[device.String()] = ci
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}
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res["connections"] = conns
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m.fmut.RUnlock()
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m.pmut.RUnlock()
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in, out := protocol.TotalInOut()
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res["total"] = ConnectionInfo{
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Statistics: protocol.Statistics{
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At: time.Now(),
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InBytesTotal: in,
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OutBytesTotal: out,
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},
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}
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return res
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}
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// Returns statistics about each device
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func (m *Model) DeviceStatistics() map[string]stats.DeviceStatistics {
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var res = make(map[string]stats.DeviceStatistics)
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for id := range m.cfg.Devices() {
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res[id.String()] = m.deviceStatRef(id).GetStatistics()
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}
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return res
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}
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// Returns statistics about each folder
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func (m *Model) FolderStatistics() map[string]stats.FolderStatistics {
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var res = make(map[string]stats.FolderStatistics)
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for id := range m.cfg.Folders() {
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res[id] = m.folderStatRef(id).GetStatistics()
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}
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return res
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}
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// Returns the completion status, in percent, for the given device and folder.
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func (m *Model) Completion(device protocol.DeviceID, folder string) float64 {
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var tot int64
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m.fmut.RLock()
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rf, ok := m.folderFiles[folder]
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m.fmut.RUnlock()
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if !ok {
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return 0 // Folder doesn't exist, so we hardly have any of it
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}
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rf.WithGlobalTruncated(func(f db.FileIntf) bool {
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if !f.IsDeleted() {
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tot += f.Size()
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}
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return true
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})
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if tot == 0 {
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return 100 // Folder is empty, so we have all of it
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}
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var need int64
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rf.WithNeedTruncated(device, func(f db.FileIntf) bool {
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if !f.IsDeleted() {
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need += f.Size()
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}
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return true
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})
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res := 100 * (1 - float64(need)/float64(tot))
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if debug {
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l.Debugf("%v Completion(%s, %q): %f (%d / %d)", m, device, folder, res, need, tot)
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}
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return res
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}
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func sizeOf(fs []protocol.FileInfo) (files, deleted int, bytes int64) {
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for _, f := range fs {
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fs, de, by := sizeOfFile(f)
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files += fs
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deleted += de
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bytes += by
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}
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return
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}
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func sizeOfFile(f db.FileIntf) (files, deleted int, bytes int64) {
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if !f.IsDeleted() {
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files++
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} else {
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deleted++
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}
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bytes += f.Size()
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return
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}
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// GlobalSize returns the number of files, deleted files and total bytes for all
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// files in the global model.
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func (m *Model) GlobalSize(folder string) (nfiles, deleted int, bytes int64) {
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m.fmut.RLock()
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defer m.fmut.RUnlock()
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if rf, ok := m.folderFiles[folder]; ok {
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rf.WithGlobalTruncated(func(f db.FileIntf) bool {
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fs, de, by := sizeOfFile(f)
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nfiles += fs
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deleted += de
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bytes += by
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return true
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})
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}
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return
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}
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// LocalSize returns the number of files, deleted files and total bytes for all
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// files in the local folder.
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func (m *Model) LocalSize(folder string) (nfiles, deleted int, bytes int64) {
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m.fmut.RLock()
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defer m.fmut.RUnlock()
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if rf, ok := m.folderFiles[folder]; ok {
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rf.WithHaveTruncated(protocol.LocalDeviceID, func(f db.FileIntf) bool {
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if f.IsInvalid() {
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return true
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}
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fs, de, by := sizeOfFile(f)
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nfiles += fs
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deleted += de
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bytes += by
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return true
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})
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}
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return
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}
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// NeedSize returns the number and total size of currently needed files.
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func (m *Model) NeedSize(folder string) (nfiles int, bytes int64) {
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m.fmut.RLock()
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defer m.fmut.RUnlock()
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if rf, ok := m.folderFiles[folder]; ok {
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rf.WithNeedTruncated(protocol.LocalDeviceID, func(f db.FileIntf) bool {
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fs, de, by := sizeOfFile(f)
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nfiles += fs + de
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bytes += by
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return true
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})
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}
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bytes -= m.progressEmitter.BytesCompleted(folder)
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if debug {
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l.Debugf("%v NeedSize(%q): %d %d", m, folder, nfiles, bytes)
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}
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return
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}
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// NeedFiles returns the list of currently needed files in progress, queued,
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// and to be queued on next puller iteration. Also takes a soft cap which is
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// only respected when adding files from the model rather than the runner queue.
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func (m *Model) NeedFolderFiles(folder string, max int) ([]db.FileInfoTruncated, []db.FileInfoTruncated, []db.FileInfoTruncated) {
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m.fmut.RLock()
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defer m.fmut.RUnlock()
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if rf, ok := m.folderFiles[folder]; ok {
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var progress, queued, rest []db.FileInfoTruncated
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var seen map[string]bool
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runner, ok := m.folderRunners[folder]
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if ok {
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progressNames, queuedNames := runner.Jobs()
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progress = make([]db.FileInfoTruncated, len(progressNames))
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queued = make([]db.FileInfoTruncated, len(queuedNames))
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seen = make(map[string]bool, len(progressNames)+len(queuedNames))
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for i, name := range progressNames {
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if f, ok := rf.GetGlobalTruncated(name); ok {
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progress[i] = f
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seen[name] = true
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}
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}
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for i, name := range queuedNames {
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if f, ok := rf.GetGlobalTruncated(name); ok {
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queued[i] = f
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seen[name] = true
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}
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}
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}
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left := max - len(progress) - len(queued)
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if max < 1 || left > 0 {
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rf.WithNeedTruncated(protocol.LocalDeviceID, func(f db.FileIntf) bool {
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left--
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ft := f.(db.FileInfoTruncated)
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if !seen[ft.Name] {
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rest = append(rest, ft)
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}
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return max < 1 || left > 0
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})
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}
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return progress, queued, rest
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}
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return nil, nil, nil
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}
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// Index is called when a new device is connected and we receive their full index.
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// Implements the protocol.Model interface.
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func (m *Model) Index(deviceID protocol.DeviceID, folder string, fs []protocol.FileInfo, flags uint32, options []protocol.Option) {
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if flags != 0 {
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l.Warnln("protocol error: unknown flags 0x%x in Index message", flags)
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return
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}
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if debug {
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l.Debugf("IDX(in): %s %q: %d files", deviceID, folder, len(fs))
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}
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if !m.folderSharedWith(folder, deviceID) {
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events.Default.Log(events.FolderRejected, map[string]string{
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"folder": folder,
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"device": deviceID.String(),
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})
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l.Infof("Unexpected folder ID %q sent from device %q; ensure that the folder exists and that this device is selected under \"Share With\" in the folder configuration.", folder, deviceID)
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return
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}
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m.fmut.RLock()
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files, ok := m.folderFiles[folder]
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m.fmut.RUnlock()
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if !ok {
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l.Fatalf("Index for nonexistant folder %q", folder)
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}
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for i := 0; i < len(fs); {
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if fs[i].Flags&^protocol.FlagsAll != 0 {
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if debug {
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l.Debugln("dropping update for file with unknown bits set", fs[i])
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}
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fs[i] = fs[len(fs)-1]
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fs = fs[:len(fs)-1]
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} else if symlinkInvalid(fs[i].IsSymlink()) {
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if debug {
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l.Debugln("dropping update for unsupported symlink", fs[i])
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}
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fs[i] = fs[len(fs)-1]
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fs = fs[:len(fs)-1]
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} else {
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i++
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}
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}
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files.Replace(deviceID, fs)
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events.Default.Log(events.RemoteIndexUpdated, map[string]interface{}{
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"device": deviceID.String(),
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"folder": folder,
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"items": len(fs),
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"version": files.LocalVersion(deviceID),
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})
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}
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// IndexUpdate is called for incremental updates to connected devices' indexes.
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// Implements the protocol.Model interface.
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func (m *Model) IndexUpdate(deviceID protocol.DeviceID, folder string, fs []protocol.FileInfo, flags uint32, options []protocol.Option) {
|
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if flags != 0 {
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l.Warnln("protocol error: unknown flags 0x%x in IndexUpdate message", flags)
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return
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}
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if debug {
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l.Debugf("%v IDXUP(in): %s / %q: %d files", m, deviceID, folder, len(fs))
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}
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if !m.folderSharedWith(folder, deviceID) {
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l.Infof("Update for unexpected folder ID %q sent from device %q; ensure that the folder exists and that this device is selected under \"Share With\" in the folder configuration.", folder, deviceID)
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return
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}
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|
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m.fmut.RLock()
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files, ok := m.folderFiles[folder]
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m.fmut.RUnlock()
|
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|
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if !ok {
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l.Fatalf("IndexUpdate for nonexistant folder %q", folder)
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}
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for i := 0; i < len(fs); {
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if fs[i].Flags&^protocol.FlagsAll != 0 {
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if debug {
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l.Debugln("dropping update for file with unknown bits set", fs[i])
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}
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fs[i] = fs[len(fs)-1]
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fs = fs[:len(fs)-1]
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} else if symlinkInvalid(fs[i].IsSymlink()) {
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if debug {
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l.Debugln("dropping update for unsupported symlink", fs[i])
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}
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fs[i] = fs[len(fs)-1]
|
|
fs = fs[:len(fs)-1]
|
|
} else {
|
|
i++
|
|
}
|
|
}
|
|
|
|
files.Update(deviceID, fs)
|
|
|
|
events.Default.Log(events.RemoteIndexUpdated, map[string]interface{}{
|
|
"device": deviceID.String(),
|
|
"folder": folder,
|
|
"items": len(fs),
|
|
"version": files.LocalVersion(deviceID),
|
|
})
|
|
}
|
|
|
|
func (m *Model) folderSharedWith(folder string, deviceID protocol.DeviceID) bool {
|
|
m.fmut.RLock()
|
|
defer m.fmut.RUnlock()
|
|
for _, nfolder := range m.deviceFolders[deviceID] {
|
|
if nfolder == folder {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (m *Model) ClusterConfig(deviceID protocol.DeviceID, cm protocol.ClusterConfigMessage) {
|
|
m.pmut.Lock()
|
|
if cm.ClientName == "syncthing" {
|
|
m.deviceVer[deviceID] = cm.ClientVersion
|
|
} else {
|
|
m.deviceVer[deviceID] = cm.ClientName + " " + cm.ClientVersion
|
|
}
|
|
|
|
event := map[string]string{
|
|
"id": deviceID.String(),
|
|
"clientName": cm.ClientName,
|
|
"clientVersion": cm.ClientVersion,
|
|
}
|
|
|
|
if conn, ok := m.rawConn[deviceID].(*tls.Conn); ok {
|
|
event["addr"] = conn.RemoteAddr().String()
|
|
}
|
|
|
|
m.pmut.Unlock()
|
|
|
|
events.Default.Log(events.DeviceConnected, event)
|
|
|
|
l.Infof(`Device %s client is "%s %s"`, deviceID, cm.ClientName, cm.ClientVersion)
|
|
|
|
var changed bool
|
|
|
|
if name := cm.GetOption("name"); name != "" {
|
|
l.Infof("Device %s name is %q", deviceID, name)
|
|
device, ok := m.cfg.Devices()[deviceID]
|
|
if ok && device.Name == "" {
|
|
device.Name = name
|
|
m.cfg.SetDevice(device)
|
|
changed = true
|
|
}
|
|
}
|
|
|
|
if m.cfg.Devices()[deviceID].Introducer {
|
|
// This device is an introducer. Go through the announced lists of folders
|
|
// and devices and add what we are missing.
|
|
|
|
for _, folder := range cm.Folders {
|
|
// If we don't have this folder yet, skip it. Ideally, we'd
|
|
// offer up something in the GUI to create the folder, but for the
|
|
// moment we only handle folders that we already have.
|
|
if _, ok := m.folderDevices[folder.ID]; !ok {
|
|
continue
|
|
}
|
|
|
|
nextDevice:
|
|
for _, device := range folder.Devices {
|
|
var id protocol.DeviceID
|
|
copy(id[:], device.ID)
|
|
|
|
if _, ok := m.cfg.Devices()[id]; !ok {
|
|
// The device is currently unknown. Add it to the config.
|
|
|
|
l.Infof("Adding device %v to config (vouched for by introducer %v)", id, deviceID)
|
|
newDeviceCfg := config.DeviceConfiguration{
|
|
DeviceID: id,
|
|
Compression: m.cfg.Devices()[deviceID].Compression,
|
|
Addresses: []string{"dynamic"},
|
|
}
|
|
|
|
// The introducers' introducers are also our introducers.
|
|
if device.Flags&protocol.FlagIntroducer != 0 {
|
|
l.Infof("Device %v is now also an introducer", id)
|
|
newDeviceCfg.Introducer = true
|
|
}
|
|
|
|
m.cfg.SetDevice(newDeviceCfg)
|
|
changed = true
|
|
}
|
|
|
|
for _, er := range m.deviceFolders[id] {
|
|
if er == folder.ID {
|
|
// We already share the folder with this device, so
|
|
// nothing to do.
|
|
continue nextDevice
|
|
}
|
|
}
|
|
|
|
// We don't yet share this folder with this device. Add the device
|
|
// to sharing list of the folder.
|
|
|
|
l.Infof("Adding device %v to share %q (vouched for by introducer %v)", id, folder.ID, deviceID)
|
|
|
|
m.deviceFolders[id] = append(m.deviceFolders[id], folder.ID)
|
|
m.folderDevices[folder.ID] = append(m.folderDevices[folder.ID], id)
|
|
|
|
folderCfg := m.cfg.Folders()[folder.ID]
|
|
folderCfg.Devices = append(folderCfg.Devices, config.FolderDeviceConfiguration{
|
|
DeviceID: id,
|
|
})
|
|
m.cfg.SetFolder(folderCfg)
|
|
|
|
changed = true
|
|
}
|
|
}
|
|
}
|
|
|
|
if changed {
|
|
m.cfg.Save()
|
|
}
|
|
}
|
|
|
|
// Close removes the peer from the model and closes the underlying connection if possible.
|
|
// Implements the protocol.Model interface.
|
|
func (m *Model) Close(device protocol.DeviceID, err error) {
|
|
l.Infof("Connection to %s closed: %v", device, err)
|
|
events.Default.Log(events.DeviceDisconnected, map[string]string{
|
|
"id": device.String(),
|
|
"error": err.Error(),
|
|
})
|
|
|
|
m.pmut.Lock()
|
|
m.fmut.RLock()
|
|
for _, folder := range m.deviceFolders[device] {
|
|
m.folderFiles[folder].Replace(device, nil)
|
|
}
|
|
m.fmut.RUnlock()
|
|
|
|
conn, ok := m.rawConn[device]
|
|
if ok {
|
|
if conn, ok := conn.(*tls.Conn); ok {
|
|
// If the underlying connection is a *tls.Conn, Close() does more
|
|
// than it says on the tin. Specifically, it sends a TLS alert
|
|
// message, which might block forever if the connection is dead
|
|
// and we don't have a deadline site.
|
|
conn.SetWriteDeadline(time.Now().Add(250 * time.Millisecond))
|
|
}
|
|
conn.Close()
|
|
}
|
|
delete(m.protoConn, device)
|
|
delete(m.rawConn, device)
|
|
delete(m.deviceVer, device)
|
|
m.pmut.Unlock()
|
|
}
|
|
|
|
// Request returns the specified data segment by reading it from local disk.
|
|
// Implements the protocol.Model interface.
|
|
func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset int64, size int, hash []byte, flags uint32, options []protocol.Option) ([]byte, error) {
|
|
if offset < 0 || size < 0 {
|
|
return nil, protocol.ErrNoSuchFile
|
|
}
|
|
|
|
if !m.folderSharedWith(folder, deviceID) {
|
|
l.Warnf("Request from %s for file %s in unshared folder %q", deviceID, name, folder)
|
|
return nil, protocol.ErrNoSuchFile
|
|
}
|
|
|
|
if flags != 0 {
|
|
// We don't currently support or expect any flags.
|
|
return nil, fmt.Errorf("protocol error: unknown flags 0x%x in Request message", flags)
|
|
}
|
|
|
|
// Verify that the requested file exists in the local model.
|
|
m.fmut.RLock()
|
|
folderFiles, ok := m.folderFiles[folder]
|
|
m.fmut.RUnlock()
|
|
|
|
if !ok {
|
|
l.Warnf("Request from %s for file %s in nonexistent folder %q", deviceID, name, folder)
|
|
return nil, protocol.ErrNoSuchFile
|
|
}
|
|
|
|
lf, ok := folderFiles.Get(protocol.LocalDeviceID, name)
|
|
if !ok {
|
|
return nil, protocol.ErrNoSuchFile
|
|
}
|
|
|
|
if lf.IsInvalid() || lf.IsDeleted() {
|
|
if debug {
|
|
l.Debugf("%v REQ(in): %s: %q / %q o=%d s=%d; invalid: %v", m, deviceID, folder, name, offset, size, lf)
|
|
}
|
|
return nil, protocol.ErrInvalid
|
|
}
|
|
|
|
if offset > lf.Size() {
|
|
if debug {
|
|
l.Debugf("%v REQ(in; nonexistent): %s: %q o=%d s=%d", m, deviceID, name, offset, size)
|
|
}
|
|
return nil, protocol.ErrNoSuchFile
|
|
}
|
|
|
|
if debug && deviceID != protocol.LocalDeviceID {
|
|
l.Debugf("%v REQ(in): %s: %q / %q o=%d s=%d", m, deviceID, folder, name, offset, size)
|
|
}
|
|
m.fmut.RLock()
|
|
fn := filepath.Join(m.folderCfgs[folder].Path(), name)
|
|
m.fmut.RUnlock()
|
|
|
|
var reader io.ReaderAt
|
|
var err error
|
|
if lf.IsSymlink() {
|
|
target, _, err := symlinks.Read(fn)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
reader = strings.NewReader(target)
|
|
} else {
|
|
// Cannot easily cache fd's because we might need to delete the file
|
|
// at any moment.
|
|
reader, err = os.Open(fn)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
defer reader.(*os.File).Close()
|
|
}
|
|
|
|
buf := make([]byte, size)
|
|
_, err = reader.ReadAt(buf, offset)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return buf, nil
|
|
}
|
|
|
|
// ReplaceLocal replaces the local folder index with the given list of files.
|
|
func (m *Model) ReplaceLocal(folder string, fs []protocol.FileInfo) {
|
|
m.fmut.RLock()
|
|
m.folderFiles[folder].ReplaceWithDelete(protocol.LocalDeviceID, fs, m.shortID)
|
|
m.fmut.RUnlock()
|
|
}
|
|
|
|
func (m *Model) CurrentFolderFile(folder string, file string) (protocol.FileInfo, bool) {
|
|
m.fmut.RLock()
|
|
fs, ok := m.folderFiles[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
return protocol.FileInfo{}, false
|
|
}
|
|
f, ok := fs.Get(protocol.LocalDeviceID, file)
|
|
return f, ok
|
|
}
|
|
|
|
func (m *Model) CurrentGlobalFile(folder string, file string) (protocol.FileInfo, bool) {
|
|
m.fmut.RLock()
|
|
fs, ok := m.folderFiles[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
return protocol.FileInfo{}, false
|
|
}
|
|
f, ok := fs.GetGlobal(file)
|
|
return f, ok
|
|
}
|
|
|
|
type cFiler struct {
|
|
m *Model
|
|
r string
|
|
}
|
|
|
|
// Implements scanner.CurrentFiler
|
|
func (cf cFiler) CurrentFile(file string) (protocol.FileInfo, bool) {
|
|
return cf.m.CurrentFolderFile(cf.r, file)
|
|
}
|
|
|
|
// ConnectedTo returns true if we are connected to the named device.
|
|
func (m *Model) ConnectedTo(deviceID protocol.DeviceID) bool {
|
|
m.pmut.RLock()
|
|
_, ok := m.protoConn[deviceID]
|
|
m.pmut.RUnlock()
|
|
if ok {
|
|
m.deviceWasSeen(deviceID)
|
|
}
|
|
return ok
|
|
}
|
|
|
|
func (m *Model) GetIgnores(folder string) ([]string, []string, error) {
|
|
var lines []string
|
|
|
|
m.fmut.RLock()
|
|
cfg, ok := m.folderCfgs[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
return lines, nil, fmt.Errorf("Folder %s does not exist", folder)
|
|
}
|
|
|
|
fd, err := os.Open(filepath.Join(cfg.Path(), ".stignore"))
|
|
if err != nil {
|
|
if os.IsNotExist(err) {
|
|
return lines, nil, nil
|
|
}
|
|
l.Warnln("Loading .stignore:", err)
|
|
return lines, nil, err
|
|
}
|
|
defer fd.Close()
|
|
|
|
scanner := bufio.NewScanner(fd)
|
|
for scanner.Scan() {
|
|
lines = append(lines, strings.TrimSpace(scanner.Text()))
|
|
}
|
|
|
|
m.fmut.RLock()
|
|
var patterns []string
|
|
if matcher := m.folderIgnores[folder]; matcher != nil {
|
|
patterns = matcher.Patterns()
|
|
}
|
|
m.fmut.RUnlock()
|
|
|
|
return lines, patterns, nil
|
|
}
|
|
|
|
func (m *Model) SetIgnores(folder string, content []string) error {
|
|
cfg, ok := m.folderCfgs[folder]
|
|
if !ok {
|
|
return fmt.Errorf("Folder %s does not exist", folder)
|
|
}
|
|
|
|
fd, err := ioutil.TempFile(cfg.Path(), ".syncthing.stignore-"+folder)
|
|
if err != nil {
|
|
l.Warnln("Saving .stignore:", err)
|
|
return err
|
|
}
|
|
defer os.Remove(fd.Name())
|
|
|
|
for _, line := range content {
|
|
_, err = fmt.Fprintln(fd, line)
|
|
if err != nil {
|
|
l.Warnln("Saving .stignore:", err)
|
|
return err
|
|
}
|
|
}
|
|
|
|
err = fd.Close()
|
|
if err != nil {
|
|
l.Warnln("Saving .stignore:", err)
|
|
return err
|
|
}
|
|
|
|
file := filepath.Join(cfg.Path(), ".stignore")
|
|
err = osutil.Rename(fd.Name(), file)
|
|
if err != nil {
|
|
l.Warnln("Saving .stignore:", err)
|
|
return err
|
|
}
|
|
|
|
return m.ScanFolder(folder)
|
|
}
|
|
|
|
// AddConnection adds a new peer connection to the model. An initial index will
|
|
// be sent to the connected peer, thereafter index updates whenever the local
|
|
// folder changes.
|
|
func (m *Model) AddConnection(rawConn io.Closer, protoConn protocol.Connection) {
|
|
deviceID := protoConn.ID()
|
|
|
|
m.pmut.Lock()
|
|
if _, ok := m.protoConn[deviceID]; ok {
|
|
panic("add existing device")
|
|
}
|
|
m.protoConn[deviceID] = protoConn
|
|
if _, ok := m.rawConn[deviceID]; ok {
|
|
panic("add existing device")
|
|
}
|
|
m.rawConn[deviceID] = rawConn
|
|
|
|
cm := m.clusterConfig(deviceID)
|
|
protoConn.ClusterConfig(cm)
|
|
|
|
m.fmut.RLock()
|
|
for _, folder := range m.deviceFolders[deviceID] {
|
|
fs := m.folderFiles[folder]
|
|
go sendIndexes(protoConn, folder, fs, m.folderIgnores[folder])
|
|
}
|
|
m.fmut.RUnlock()
|
|
m.pmut.Unlock()
|
|
|
|
m.deviceWasSeen(deviceID)
|
|
}
|
|
|
|
func (m *Model) deviceStatRef(deviceID protocol.DeviceID) *stats.DeviceStatisticsReference {
|
|
m.fmut.Lock()
|
|
defer m.fmut.Unlock()
|
|
|
|
if sr, ok := m.deviceStatRefs[deviceID]; ok {
|
|
return sr
|
|
}
|
|
|
|
sr := stats.NewDeviceStatisticsReference(m.db, deviceID)
|
|
m.deviceStatRefs[deviceID] = sr
|
|
return sr
|
|
}
|
|
|
|
func (m *Model) deviceWasSeen(deviceID protocol.DeviceID) {
|
|
m.deviceStatRef(deviceID).WasSeen()
|
|
}
|
|
|
|
func (m *Model) folderStatRef(folder string) *stats.FolderStatisticsReference {
|
|
m.fmut.Lock()
|
|
defer m.fmut.Unlock()
|
|
|
|
sr, ok := m.folderStatRefs[folder]
|
|
if !ok {
|
|
sr = stats.NewFolderStatisticsReference(m.db, folder)
|
|
m.folderStatRefs[folder] = sr
|
|
}
|
|
return sr
|
|
}
|
|
|
|
func (m *Model) receivedFile(folder, filename string) {
|
|
m.folderStatRef(folder).ReceivedFile(filename)
|
|
}
|
|
|
|
func sendIndexes(conn protocol.Connection, folder string, fs *db.FileSet, ignores *ignore.Matcher) {
|
|
deviceID := conn.ID()
|
|
name := conn.Name()
|
|
var err error
|
|
|
|
if debug {
|
|
l.Debugf("sendIndexes for %s-%s/%q starting", deviceID, name, folder)
|
|
}
|
|
|
|
minLocalVer, err := sendIndexTo(true, 0, conn, folder, fs, ignores)
|
|
|
|
for err == nil {
|
|
time.Sleep(5 * time.Second)
|
|
if fs.LocalVersion(protocol.LocalDeviceID) <= minLocalVer {
|
|
continue
|
|
}
|
|
|
|
minLocalVer, err = sendIndexTo(false, minLocalVer, conn, folder, fs, ignores)
|
|
}
|
|
|
|
if debug {
|
|
l.Debugf("sendIndexes for %s-%s/%q exiting: %v", deviceID, name, folder, err)
|
|
}
|
|
}
|
|
|
|
func sendIndexTo(initial bool, minLocalVer int64, conn protocol.Connection, folder string, fs *db.FileSet, ignores *ignore.Matcher) (int64, error) {
|
|
deviceID := conn.ID()
|
|
name := conn.Name()
|
|
batch := make([]protocol.FileInfo, 0, indexBatchSize)
|
|
currentBatchSize := 0
|
|
maxLocalVer := int64(0)
|
|
var err error
|
|
|
|
fs.WithHave(protocol.LocalDeviceID, func(fi db.FileIntf) bool {
|
|
f := fi.(protocol.FileInfo)
|
|
if f.LocalVersion <= minLocalVer {
|
|
return true
|
|
}
|
|
|
|
if f.LocalVersion > maxLocalVer {
|
|
maxLocalVer = f.LocalVersion
|
|
}
|
|
|
|
if (ignores != nil && ignores.Match(f.Name)) || symlinkInvalid(f.IsSymlink()) {
|
|
if debug {
|
|
l.Debugln("not sending update for ignored/unsupported symlink", f)
|
|
}
|
|
return true
|
|
}
|
|
|
|
if len(batch) == indexBatchSize || currentBatchSize > indexTargetSize {
|
|
if initial {
|
|
if err = conn.Index(folder, batch, 0, nil); err != nil {
|
|
return false
|
|
}
|
|
if debug {
|
|
l.Debugf("sendIndexes for %s-%s/%q: %d files (<%d bytes) (initial index)", deviceID, name, folder, len(batch), currentBatchSize)
|
|
}
|
|
initial = false
|
|
} else {
|
|
if err = conn.IndexUpdate(folder, batch, 0, nil); err != nil {
|
|
return false
|
|
}
|
|
if debug {
|
|
l.Debugf("sendIndexes for %s-%s/%q: %d files (<%d bytes) (batched update)", deviceID, name, folder, len(batch), currentBatchSize)
|
|
}
|
|
}
|
|
|
|
batch = make([]protocol.FileInfo, 0, indexBatchSize)
|
|
currentBatchSize = 0
|
|
}
|
|
|
|
batch = append(batch, f)
|
|
currentBatchSize += indexPerFileSize + len(f.Blocks)*IndexPerBlockSize
|
|
return true
|
|
})
|
|
|
|
if initial && err == nil {
|
|
err = conn.Index(folder, batch, 0, nil)
|
|
if debug && err == nil {
|
|
l.Debugf("sendIndexes for %s-%s/%q: %d files (small initial index)", deviceID, name, folder, len(batch))
|
|
}
|
|
} else if len(batch) > 0 && err == nil {
|
|
err = conn.IndexUpdate(folder, batch, 0, nil)
|
|
if debug && err == nil {
|
|
l.Debugf("sendIndexes for %s-%s/%q: %d files (last batch)", deviceID, name, folder, len(batch))
|
|
}
|
|
}
|
|
|
|
return maxLocalVer, err
|
|
}
|
|
|
|
func (m *Model) updateLocals(folder string, fs []protocol.FileInfo) {
|
|
m.fmut.RLock()
|
|
m.folderFiles[folder].Update(protocol.LocalDeviceID, fs)
|
|
m.fmut.RUnlock()
|
|
|
|
events.Default.Log(events.LocalIndexUpdated, map[string]interface{}{
|
|
"folder": folder,
|
|
"items": len(fs),
|
|
})
|
|
}
|
|
|
|
func (m *Model) requestGlobal(deviceID protocol.DeviceID, folder, name string, offset int64, size int, hash []byte, flags uint32, options []protocol.Option) ([]byte, error) {
|
|
m.pmut.RLock()
|
|
nc, ok := m.protoConn[deviceID]
|
|
m.pmut.RUnlock()
|
|
|
|
if !ok {
|
|
return nil, fmt.Errorf("requestGlobal: no such device: %s", deviceID)
|
|
}
|
|
|
|
if debug {
|
|
l.Debugf("%v REQ(out): %s: %q / %q o=%d s=%d h=%x f=%x op=%s", m, deviceID, folder, name, offset, size, hash, flags, options)
|
|
}
|
|
|
|
return nc.Request(folder, name, offset, size, hash, flags, options)
|
|
}
|
|
|
|
func (m *Model) AddFolder(cfg config.FolderConfiguration) {
|
|
if m.started {
|
|
panic("cannot add folder to started model")
|
|
}
|
|
if len(cfg.ID) == 0 {
|
|
panic("cannot add empty folder id")
|
|
}
|
|
|
|
m.fmut.Lock()
|
|
m.folderCfgs[cfg.ID] = cfg
|
|
m.folderFiles[cfg.ID] = db.NewFileSet(cfg.ID, m.db)
|
|
|
|
m.folderDevices[cfg.ID] = make([]protocol.DeviceID, len(cfg.Devices))
|
|
for i, device := range cfg.Devices {
|
|
m.folderDevices[cfg.ID][i] = device.DeviceID
|
|
m.deviceFolders[device.DeviceID] = append(m.deviceFolders[device.DeviceID], cfg.ID)
|
|
}
|
|
|
|
ignores := ignore.New(m.cfg.Options().CacheIgnoredFiles)
|
|
_ = ignores.Load(filepath.Join(cfg.Path(), ".stignore")) // Ignore error, there might not be an .stignore
|
|
m.folderIgnores[cfg.ID] = ignores
|
|
|
|
m.addedFolder = true
|
|
m.fmut.Unlock()
|
|
}
|
|
|
|
func (m *Model) ScanFolders() map[string]error {
|
|
m.fmut.RLock()
|
|
folders := make([]string, 0, len(m.folderCfgs))
|
|
for folder := range m.folderCfgs {
|
|
folders = append(folders, folder)
|
|
}
|
|
m.fmut.RUnlock()
|
|
|
|
errors := make(map[string]error, len(m.folderCfgs))
|
|
errorsMut := sync.NewMutex()
|
|
|
|
wg := sync.NewWaitGroup()
|
|
wg.Add(len(folders))
|
|
for _, folder := range folders {
|
|
folder := folder
|
|
go func() {
|
|
err := m.ScanFolder(folder)
|
|
if err != nil {
|
|
errorsMut.Lock()
|
|
errors[folder] = err
|
|
errorsMut.Unlock()
|
|
|
|
// Potentially sets the error twice, once in the scanner just
|
|
// by doing a check, and once here, if the error returned is
|
|
// the same one as returned by CheckFolderHealth, though
|
|
// duplicate set is handled by setError.
|
|
m.fmut.RLock()
|
|
srv := m.folderRunners[folder]
|
|
m.fmut.RUnlock()
|
|
srv.setError(err)
|
|
}
|
|
wg.Done()
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
return errors
|
|
}
|
|
|
|
func (m *Model) ScanFolder(folder string) error {
|
|
return m.ScanFolderSubs(folder, nil)
|
|
}
|
|
|
|
func (m *Model) ScanFolderSubs(folder string, subs []string) error {
|
|
for i, sub := range subs {
|
|
sub = osutil.NativeFilename(sub)
|
|
if p := filepath.Clean(filepath.Join(folder, sub)); !strings.HasPrefix(p, folder) {
|
|
return errors.New("invalid subpath")
|
|
}
|
|
subs[i] = sub
|
|
}
|
|
|
|
m.fmut.Lock()
|
|
fs := m.folderFiles[folder]
|
|
folderCfg := m.folderCfgs[folder]
|
|
ignores := m.folderIgnores[folder]
|
|
runner, ok := m.folderRunners[folder]
|
|
m.fmut.Unlock()
|
|
|
|
// Folders are added to folderRunners only when they are started. We can't
|
|
// scan them before they have started, so that's what we need to check for
|
|
// here.
|
|
if !ok {
|
|
return errors.New("no such folder")
|
|
}
|
|
|
|
_ = ignores.Load(filepath.Join(folderCfg.Path(), ".stignore")) // Ignore error, there might not be an .stignore
|
|
|
|
// Required to make sure that we start indexing at a directory we're already
|
|
// aware off.
|
|
var unifySubs []string
|
|
nextSub:
|
|
for _, sub := range subs {
|
|
for sub != "" {
|
|
if _, ok = fs.Get(protocol.LocalDeviceID, sub); ok {
|
|
break
|
|
}
|
|
sub = filepath.Dir(sub)
|
|
if sub == "." || sub == string(filepath.Separator) {
|
|
sub = ""
|
|
}
|
|
}
|
|
for _, us := range unifySubs {
|
|
if strings.HasPrefix(sub, us) {
|
|
continue nextSub
|
|
}
|
|
}
|
|
unifySubs = append(unifySubs, sub)
|
|
}
|
|
subs = unifySubs
|
|
|
|
w := &scanner.Walker{
|
|
Dir: folderCfg.Path(),
|
|
Subs: subs,
|
|
Matcher: ignores,
|
|
BlockSize: protocol.BlockSize,
|
|
TempNamer: defTempNamer,
|
|
TempLifetime: time.Duration(m.cfg.Options().KeepTemporariesH) * time.Hour,
|
|
CurrentFiler: cFiler{m, folder},
|
|
IgnorePerms: folderCfg.IgnorePerms,
|
|
AutoNormalize: folderCfg.AutoNormalize,
|
|
Hashers: folderCfg.Hashers,
|
|
ShortID: m.shortID,
|
|
}
|
|
|
|
runner.setState(FolderScanning)
|
|
|
|
fchan, err := w.Walk()
|
|
if err != nil {
|
|
runner.setError(err)
|
|
return err
|
|
}
|
|
|
|
batchSizeFiles := 100
|
|
batchSizeBlocks := 2048 // about 256 MB
|
|
|
|
batch := make([]protocol.FileInfo, 0, batchSizeFiles)
|
|
blocksHandled := 0
|
|
|
|
for f := range fchan {
|
|
if len(batch) == batchSizeFiles || blocksHandled > batchSizeBlocks {
|
|
if err := m.CheckFolderHealth(folder); err != nil {
|
|
l.Infof("Stopping folder %s mid-scan due to folder error: %s", folder, err)
|
|
return err
|
|
}
|
|
m.updateLocals(folder, batch)
|
|
batch = batch[:0]
|
|
blocksHandled = 0
|
|
}
|
|
batch = append(batch, f)
|
|
blocksHandled += len(f.Blocks)
|
|
}
|
|
|
|
if err := m.CheckFolderHealth(folder); err != nil {
|
|
l.Infof("Stopping folder %s mid-scan due to folder error: %s", folder, err)
|
|
return err
|
|
} else if len(batch) > 0 {
|
|
fs.Update(protocol.LocalDeviceID, batch)
|
|
}
|
|
|
|
batch = batch[:0]
|
|
// TODO: We should limit the Have scanning to start at sub
|
|
seenPrefix := false
|
|
fs.WithHaveTruncated(protocol.LocalDeviceID, func(fi db.FileIntf) bool {
|
|
f := fi.(db.FileInfoTruncated)
|
|
hasPrefix := len(subs) == 0
|
|
for _, sub := range subs {
|
|
if strings.HasPrefix(f.Name, sub) {
|
|
hasPrefix = true
|
|
break
|
|
}
|
|
}
|
|
// Return true so that we keep iterating, until we get to the part
|
|
// of the tree we are interested in. Then return false so we stop
|
|
// iterating when we've passed the end of the subtree.
|
|
if !hasPrefix {
|
|
return !seenPrefix
|
|
}
|
|
|
|
seenPrefix = true
|
|
if !f.IsDeleted() {
|
|
if f.IsInvalid() {
|
|
return true
|
|
}
|
|
|
|
if len(batch) == batchSizeFiles {
|
|
m.updateLocals(folder, batch)
|
|
batch = batch[:0]
|
|
}
|
|
|
|
if (ignores != nil && ignores.Match(f.Name)) || symlinkInvalid(f.IsSymlink()) {
|
|
// File has been ignored or an unsupported symlink. Set invalid bit.
|
|
if debug {
|
|
l.Debugln("setting invalid bit on ignored", f)
|
|
}
|
|
nf := protocol.FileInfo{
|
|
Name: f.Name,
|
|
Flags: f.Flags | protocol.FlagInvalid,
|
|
Modified: f.Modified,
|
|
Version: f.Version, // The file is still the same, so don't bump version
|
|
}
|
|
batch = append(batch, nf)
|
|
} else if _, err := osutil.Lstat(filepath.Join(folderCfg.Path(), f.Name)); err != nil {
|
|
// File has been deleted.
|
|
|
|
// We don't specifically verify that the error is
|
|
// os.IsNotExist because there is a corner case when a
|
|
// directory is suddenly transformed into a file. When that
|
|
// happens, files that were in the directory (that is now a
|
|
// file) are deleted but will return a confusing error ("not a
|
|
// directory") when we try to Lstat() them.
|
|
|
|
nf := protocol.FileInfo{
|
|
Name: f.Name,
|
|
Flags: f.Flags | protocol.FlagDeleted,
|
|
Modified: f.Modified,
|
|
Version: f.Version.Update(m.shortID),
|
|
}
|
|
batch = append(batch, nf)
|
|
}
|
|
}
|
|
return true
|
|
})
|
|
if len(batch) > 0 {
|
|
m.updateLocals(folder, batch)
|
|
}
|
|
|
|
runner.setState(FolderIdle)
|
|
return nil
|
|
}
|
|
|
|
// clusterConfig returns a ClusterConfigMessage that is correct for the given peer device
|
|
func (m *Model) clusterConfig(device protocol.DeviceID) protocol.ClusterConfigMessage {
|
|
cm := protocol.ClusterConfigMessage{
|
|
ClientName: m.clientName,
|
|
ClientVersion: m.clientVersion,
|
|
Options: []protocol.Option{
|
|
{
|
|
Key: "name",
|
|
Value: m.deviceName,
|
|
},
|
|
},
|
|
}
|
|
|
|
m.fmut.RLock()
|
|
for _, folder := range m.deviceFolders[device] {
|
|
cr := protocol.Folder{
|
|
ID: folder,
|
|
}
|
|
for _, device := range m.folderDevices[folder] {
|
|
// DeviceID is a value type, but with an underlying array. Copy it
|
|
// so we don't grab aliases to the same array later on in device[:]
|
|
device := device
|
|
// TODO: Set read only bit when relevant
|
|
cn := protocol.Device{
|
|
ID: device[:],
|
|
Flags: protocol.FlagShareTrusted,
|
|
}
|
|
if deviceCfg := m.cfg.Devices()[device]; deviceCfg.Introducer {
|
|
cn.Flags |= protocol.FlagIntroducer
|
|
}
|
|
cr.Devices = append(cr.Devices, cn)
|
|
}
|
|
cm.Folders = append(cm.Folders, cr)
|
|
}
|
|
m.fmut.RUnlock()
|
|
|
|
return cm
|
|
}
|
|
|
|
func (m *Model) State(folder string) (string, time.Time, error) {
|
|
m.fmut.RLock()
|
|
runner, ok := m.folderRunners[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
// The returned error should be an actual folder error, so returning
|
|
// errors.New("does not exist") or similar here would be
|
|
// inappropriate.
|
|
return "", time.Time{}, nil
|
|
}
|
|
state, changed, err := runner.getState()
|
|
return state.String(), changed, err
|
|
}
|
|
|
|
func (m *Model) Override(folder string) {
|
|
m.fmut.RLock()
|
|
fs, ok := m.folderFiles[folder]
|
|
runner := m.folderRunners[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
runner.setState(FolderScanning)
|
|
batch := make([]protocol.FileInfo, 0, indexBatchSize)
|
|
fs.WithNeed(protocol.LocalDeviceID, func(fi db.FileIntf) bool {
|
|
need := fi.(protocol.FileInfo)
|
|
if len(batch) == indexBatchSize {
|
|
fs.Update(protocol.LocalDeviceID, batch)
|
|
batch = batch[:0]
|
|
}
|
|
|
|
have, ok := fs.Get(protocol.LocalDeviceID, need.Name)
|
|
if !ok || have.Name != need.Name {
|
|
// We are missing the file
|
|
need.Flags |= protocol.FlagDeleted
|
|
need.Blocks = nil
|
|
need.Version = need.Version.Update(m.shortID)
|
|
} else {
|
|
// We have the file, replace with our version
|
|
have.Version = have.Version.Merge(need.Version).Update(m.shortID)
|
|
need = have
|
|
}
|
|
need.LocalVersion = 0
|
|
batch = append(batch, need)
|
|
return true
|
|
})
|
|
if len(batch) > 0 {
|
|
fs.Update(protocol.LocalDeviceID, batch)
|
|
}
|
|
runner.setState(FolderIdle)
|
|
}
|
|
|
|
// CurrentLocalVersion returns the change version for the given folder.
|
|
// This is guaranteed to increment if the contents of the local folder has
|
|
// changed.
|
|
func (m *Model) CurrentLocalVersion(folder string) int64 {
|
|
m.fmut.RLock()
|
|
fs, ok := m.folderFiles[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
// The folder might not exist, since this can be called with a user
|
|
// specified folder name from the REST interface.
|
|
return 0
|
|
}
|
|
|
|
return fs.LocalVersion(protocol.LocalDeviceID)
|
|
}
|
|
|
|
// RemoteLocalVersion returns the change version for the given folder, as
|
|
// sent by remote peers. This is guaranteed to increment if the contents of
|
|
// the remote or global folder has changed.
|
|
func (m *Model) RemoteLocalVersion(folder string) int64 {
|
|
m.fmut.RLock()
|
|
defer m.fmut.RUnlock()
|
|
|
|
fs, ok := m.folderFiles[folder]
|
|
if !ok {
|
|
// The folder might not exist, since this can be called with a user
|
|
// specified folder name from the REST interface.
|
|
return 0
|
|
}
|
|
|
|
var ver int64
|
|
for _, n := range m.folderDevices[folder] {
|
|
ver += fs.LocalVersion(n)
|
|
}
|
|
|
|
return ver
|
|
}
|
|
|
|
func (m *Model) GlobalDirectoryTree(folder, prefix string, levels int, dirsonly bool) map[string]interface{} {
|
|
m.fmut.RLock()
|
|
files, ok := m.folderFiles[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
return nil
|
|
}
|
|
|
|
output := make(map[string]interface{})
|
|
sep := string(filepath.Separator)
|
|
prefix = osutil.NativeFilename(prefix)
|
|
|
|
if prefix != "" && !strings.HasSuffix(prefix, sep) {
|
|
prefix = prefix + sep
|
|
}
|
|
|
|
files.WithPrefixedGlobalTruncated(prefix, func(fi db.FileIntf) bool {
|
|
f := fi.(db.FileInfoTruncated)
|
|
|
|
if f.IsInvalid() || f.IsDeleted() || f.Name == prefix {
|
|
return true
|
|
}
|
|
|
|
f.Name = strings.Replace(f.Name, prefix, "", 1)
|
|
|
|
var dir, base string
|
|
if f.IsDirectory() && !f.IsSymlink() {
|
|
dir = f.Name
|
|
} else {
|
|
dir = filepath.Dir(f.Name)
|
|
base = filepath.Base(f.Name)
|
|
}
|
|
|
|
if levels > -1 && strings.Count(f.Name, sep) > levels {
|
|
return true
|
|
}
|
|
|
|
last := output
|
|
if dir != "." {
|
|
for _, path := range strings.Split(dir, sep) {
|
|
directory, ok := last[path]
|
|
if !ok {
|
|
newdir := make(map[string]interface{})
|
|
last[path] = newdir
|
|
last = newdir
|
|
} else {
|
|
last = directory.(map[string]interface{})
|
|
}
|
|
}
|
|
}
|
|
|
|
if !dirsonly && base != "" {
|
|
last[base] = []interface{}{
|
|
time.Unix(f.Modified, 0), f.Size(),
|
|
}
|
|
}
|
|
|
|
return true
|
|
})
|
|
|
|
return output
|
|
}
|
|
|
|
func (m *Model) Availability(folder, file string) []protocol.DeviceID {
|
|
// Acquire this lock first, as the value returned from foldersFiles can
|
|
// get heavily modified on Close()
|
|
m.pmut.RLock()
|
|
defer m.pmut.RUnlock()
|
|
|
|
m.fmut.RLock()
|
|
fs, ok := m.folderFiles[folder]
|
|
m.fmut.RUnlock()
|
|
if !ok {
|
|
return nil
|
|
}
|
|
|
|
availableDevices := []protocol.DeviceID{}
|
|
for _, device := range fs.Availability(file) {
|
|
_, ok := m.protoConn[device]
|
|
if ok {
|
|
availableDevices = append(availableDevices, device)
|
|
}
|
|
}
|
|
return availableDevices
|
|
}
|
|
|
|
// Bump the given files priority in the job queue
|
|
func (m *Model) BringToFront(folder, file string) {
|
|
m.pmut.RLock()
|
|
defer m.pmut.RUnlock()
|
|
|
|
runner, ok := m.folderRunners[folder]
|
|
if ok {
|
|
runner.BringToFront(file)
|
|
}
|
|
}
|
|
|
|
// Returns current folder error, or nil if the folder is healthy.
|
|
// Updates the Invalid field on the folder configuration struct, and emits a
|
|
// ConfigSaved event which causes a GUI refresh.
|
|
func (m *Model) CheckFolderHealth(id string) error {
|
|
folder, ok := m.cfg.Folders()[id]
|
|
if !ok {
|
|
return errors.New("folder does not exist")
|
|
}
|
|
|
|
fi, err := os.Stat(folder.Path())
|
|
if m.CurrentLocalVersion(id) > 0 {
|
|
// Safety check. If the cached index contains files but the
|
|
// folder doesn't exist, we have a problem. We would assume
|
|
// that all files have been deleted which might not be the case,
|
|
// so mark it as invalid instead.
|
|
if err != nil || !fi.IsDir() {
|
|
err = errors.New("folder path missing")
|
|
} else if !folder.HasMarker() {
|
|
err = errors.New("folder marker missing")
|
|
}
|
|
} else if os.IsNotExist(err) {
|
|
// If we don't have any files in the index, and the directory
|
|
// doesn't exist, try creating it.
|
|
err = os.MkdirAll(folder.Path(), 0700)
|
|
if err == nil {
|
|
err = folder.CreateMarker()
|
|
}
|
|
} else if !folder.HasMarker() {
|
|
// If we don't have any files in the index, and the path does exist
|
|
// but the marker is not there, create it.
|
|
err = folder.CreateMarker()
|
|
}
|
|
|
|
m.fmut.RLock()
|
|
runner := m.folderRunners[folder.ID]
|
|
m.fmut.RUnlock()
|
|
_, _, oldErr := runner.getState()
|
|
|
|
if err != nil {
|
|
if oldErr != nil && oldErr.Error() != err.Error() {
|
|
l.Infof("Folder %q error changed: %q -> %q", folder.ID, oldErr, err)
|
|
} else if oldErr == nil {
|
|
l.Warnf("Stopping folder %q - %v", folder.ID, err)
|
|
}
|
|
runner.setError(err)
|
|
} else if oldErr != nil {
|
|
l.Infof("Folder %q error is cleared, restarting", folder.ID)
|
|
runner.setState(FolderIdle)
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func (m *Model) ResetFolder(folder string) error {
|
|
for _, f := range db.ListFolders(m.db) {
|
|
if f == folder {
|
|
l.Infof("Cleaning data for folder %q", folder)
|
|
db.DropFolder(m.db, folder)
|
|
return nil
|
|
}
|
|
}
|
|
return fmt.Errorf("Unknown folder %q", folder)
|
|
}
|
|
|
|
func (m *Model) String() string {
|
|
return fmt.Sprintf("model@%p", m)
|
|
}
|
|
|
|
func symlinkInvalid(isLink bool) bool {
|
|
if !symlinks.Supported && isLink {
|
|
SymlinkWarning.Do(func() {
|
|
l.Warnln("Symlinks are disabled, unsupported or require Administrator priviledges. This might cause your folder to appear out of sync.")
|
|
})
|
|
return true
|
|
}
|
|
return false
|
|
}
|