12 "github.com/Sirupsen/logrus"
13 common "github.com/iotbzh/xds-common/golib"
14 "github.com/iotbzh/xds-server/lib/folder"
15 "github.com/iotbzh/xds-server/lib/syncthing"
16 "github.com/iotbzh/xds-server/lib/xdsconfig"
17 "github.com/syncthing/syncthing/lib/sync"
20 // Folders Represent a an XDS folders
23 Conf *xdsconfig.Config
26 folders map[string]*folder.IFOLDER
27 registerCB []RegisteredCB
30 type RegisteredCB struct {
32 data *folder.EventCBData
35 // Mutex to make add/delete atomic
36 var fcMutex = sync.NewMutex()
37 var ffMutex = sync.NewMutex()
39 // FoldersNew Create a new instance of Model Folders
40 func FoldersNew(cfg *xdsconfig.Config, st *st.SyncThing) *Folders {
41 file, _ := xdsconfig.FoldersConfigFilenameGet()
47 folders: make(map[string]*folder.IFOLDER),
48 registerCB: []RegisteredCB{},
52 // LoadConfig Load folders configuration from disk
53 func (f *Folders) LoadConfig() error {
54 var flds []folder.FolderConfig
55 var stFlds []folder.FolderConfig
58 if f.Conf.Options.NoFolderConfig {
59 f.Log.Infof("Don't read folder config file (-no-folderconfig option is set)")
60 } else if f.fileOnDisk != "" {
61 f.Log.Infof("Use folder config file: %s", f.fileOnDisk)
62 err := foldersConfigRead(f.fileOnDisk, &flds)
64 if strings.HasPrefix(err.Error(), "No folder config") {
65 f.Log.Warnf(err.Error())
71 f.Log.Warnf("Folders config filename not set")
74 // Retrieve initial Syncthing config (just append don't overwrite existing ones)
76 f.Log.Infof("Retrieve syncthing folder config")
77 if err := f.SThg.FolderLoadFromStConfig(&stFlds); err != nil {
78 // Don't exit on such error, just log it
79 f.Log.Errorf(err.Error())
82 f.Log.Infof("Syncthing support is disabled.")
85 // Merge syncthing folders into XDS folders
86 for _, stf := range stFlds {
88 for i, xf := range flds {
92 if xf.Type != folder.TypeCloudSync {
93 flds[i].Status = folder.StatusErrorConfig
100 flds = append(flds, stf)
104 // Detect ghost project
105 // (IOW existing in xds file config and not in syncthing database)
107 for i, xf := range flds {
108 // only for syncthing project
109 if xf.Type != folder.TypeCloudSync {
113 for _, stf := range stFlds {
120 flds[i].Status = folder.StatusErrorConfig
126 f.Log.Infof("Loading initial folders config: %d folders found", len(flds))
127 for _, fc := range flds {
128 if _, err := f.createUpdate(fc, false, true); err != nil {
133 // Save config on disk
134 err := f.SaveConfig()
139 // SaveConfig Save folders configuration to disk
140 func (f *Folders) SaveConfig() error {
141 if f.fileOnDisk == "" {
142 return fmt.Errorf("Folders config filename not set")
145 // FIXME: buffered save or avoid to write on disk each time
146 return foldersConfigWrite(f.fileOnDisk, f.getConfigArrUnsafe())
149 // Get returns the folder config or nil if not existing
150 func (f *Folders) Get(id string) *folder.IFOLDER {
154 fc, exist := f.folders[id]
161 // GetConfigArr returns the config of all folders as an array
162 func (f *Folders) GetConfigArr() []folder.FolderConfig {
164 defer fcMutex.Unlock()
166 return f.getConfigArrUnsafe()
169 // getConfigArrUnsafe Same as GetConfigArr without mutex protection
170 func (f *Folders) getConfigArrUnsafe() []folder.FolderConfig {
171 var conf []folder.FolderConfig
173 for _, v := range f.folders {
174 conf = append(conf, (*v).GetConfig())
179 // Add adds a new folder
180 func (f *Folders) Add(newF folder.FolderConfig) (*folder.FolderConfig, error) {
181 return f.createUpdate(newF, true, false)
184 // CreateUpdate creates or update a folder
185 func (f *Folders) createUpdate(newF folder.FolderConfig, create bool, initial bool) (*folder.FolderConfig, error) {
188 defer fcMutex.Unlock()
191 if _, exist := f.folders[newF.ID]; create && exist {
192 return nil, fmt.Errorf("ID already exists")
194 if newF.ClientPath == "" {
195 return nil, fmt.Errorf("ClientPath must be set")
198 // Create a new folder object
199 var fld folder.IFOLDER
202 case folder.TypeCloudSync:
204 fld = f.SThg.NewFolderST(f.Conf)
206 f.Log.Debugf("Disable project %v (syncthing not initialized)", newF.ID)
207 fld = folder.NewFolderSTDisable(f.Conf)
211 case folder.TypePathMap:
212 fld = folder.NewFolderPathMap(f.Conf)
214 return nil, fmt.Errorf("Unsupported folder type")
217 // Set default value if needed
218 if newF.Status == "" {
219 newF.Status = folder.StatusDisable
221 if newF.Label == "" {
222 newF.Label = filepath.Base(newF.ClientPath) + "_" + newF.ID[0:8]
225 // Allocate a new UUID
231 newF.ID = fld.NewUID(newF.Label[:i])
233 if !create && newF.ID == "" {
234 return nil, fmt.Errorf("Cannot update folder with null ID")
237 // Normalize path (needed for Windows path including bashlashes)
238 newF.ClientPath = common.PathNormalize(newF.ClientPath)
241 newFolder, err := fld.Add(newF)
243 newF.Status = folder.StatusErrorConfig
244 log.Printf("ERROR Adding folder: %v\n", err)
245 return newFolder, err
248 // Add to folders list
249 f.folders[newF.ID] = &fld
251 // Save config on disk
253 if err := f.SaveConfig(); err != nil {
254 return newFolder, err
258 // Register event change callback
259 for _, rcb := range f.registerCB {
260 if err := fld.RegisterEventChange(rcb.cb, rcb.data); err != nil {
261 return newFolder, err
265 // Force sync after creation
266 // (need to defer to be sure that WS events will arrive after HTTP creation reply)
268 time.Sleep(time.Millisecond * 500)
272 return newFolder, nil
275 // Delete deletes a specific folder
276 func (f *Folders) Delete(id string) (folder.FolderConfig, error) {
280 defer fcMutex.Unlock()
282 fld := folder.FolderConfig{}
283 fc, exist := f.folders[id]
285 return fld, fmt.Errorf("unknown id")
288 fld = (*fc).GetConfig()
290 if err = (*fc).Remove(); err != nil {
294 delete(f.folders, id)
296 // Save config on disk
302 // RegisterEventChange requests registration for folder event change
303 func (f *Folders) RegisterEventChange(id string, cb *folder.EventCB, data *folder.EventCBData) error {
305 flds := make(map[string]*folder.IFOLDER)
307 // Register to a specific folder
310 // Register to all folders
312 f.registerCB = append(f.registerCB, RegisteredCB{cb: cb, data: data})
315 for _, fld := range flds {
316 err := (*fld).RegisterEventChange(cb, data)
325 // ForceSync Force the synchronization of a folder
326 func (f *Folders) ForceSync(id string) error {
329 return fmt.Errorf("Unknown id")
334 // IsFolderInSync Returns true when folder is in sync
335 func (f *Folders) IsFolderInSync(id string) (bool, error) {
338 return false, fmt.Errorf("Unknown id")
340 return (*fc).IsInSync()
343 //*** Private functions ***
345 // Use XML format and not json to be able to save/load all fields including
346 // ones that are masked in json (IOW defined with `json:"-"`)
347 type xmlFolders struct {
348 XMLName xml.Name `xml:"folders"`
349 Version string `xml:"version,attr"`
350 Folders []folder.FolderConfig `xml:"folders"`
353 // foldersConfigRead reads folders config from disk
354 func foldersConfigRead(file string, folders *[]folder.FolderConfig) error {
355 if !common.Exists(file) {
356 return fmt.Errorf("No folder config file found (%s)", file)
360 defer ffMutex.Unlock()
362 fd, err := os.Open(file)
369 err = xml.NewDecoder(fd).Decode(&data)
371 *folders = data.Folders
376 // foldersConfigWrite writes folders config on disk
377 func foldersConfigWrite(file string, folders []folder.FolderConfig) error {
379 defer ffMutex.Unlock()
381 fd, err := os.OpenFile(file, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0666)
392 enc := xml.NewEncoder(fd)
394 return enc.Encode(data)