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())
83 // Merge syncthing folders into XDS folders
84 for _, stf := range stFlds {
86 for i, xf := range flds {
90 if xf.Type != folder.TypeCloudSync {
91 flds[i].Status = folder.StatusErrorConfig
98 flds = append(flds, stf)
102 // Detect ghost project
103 // (IOW existing in xds file config and not in syncthing database)
104 for i, xf := range flds {
105 // only for syncthing project
106 if xf.Type != folder.TypeCloudSync {
110 for _, stf := range stFlds {
117 flds[i].Status = folder.StatusErrorConfig
122 f.Log.Infof("Loading initial folders config: %d folders found", len(flds))
123 for _, fc := range flds {
124 if _, err := f.createUpdate(fc, false, true); err != nil {
129 // Save config on disk
130 err := f.SaveConfig()
135 // SaveConfig Save folders configuration to disk
136 func (f *Folders) SaveConfig() error {
137 if f.fileOnDisk == "" {
138 return fmt.Errorf("Folders config filename not set")
141 // FIXME: buffered save or avoid to write on disk each time
142 return foldersConfigWrite(f.fileOnDisk, f.getConfigArrUnsafe())
145 // Get returns the folder config or nil if not existing
146 func (f *Folders) Get(id string) *folder.IFOLDER {
150 fc, exist := f.folders[id]
157 // GetConfigArr returns the config of all folders as an array
158 func (f *Folders) GetConfigArr() []folder.FolderConfig {
160 defer fcMutex.Unlock()
162 return f.getConfigArrUnsafe()
165 // getConfigArrUnsafe Same as GetConfigArr without mutex protection
166 func (f *Folders) getConfigArrUnsafe() []folder.FolderConfig {
167 var conf []folder.FolderConfig
169 for _, v := range f.folders {
170 conf = append(conf, (*v).GetConfig())
175 // Add adds a new folder
176 func (f *Folders) Add(newF folder.FolderConfig) (*folder.FolderConfig, error) {
177 return f.createUpdate(newF, true, false)
180 // CreateUpdate creates or update a folder
181 func (f *Folders) createUpdate(newF folder.FolderConfig, create bool, initial bool) (*folder.FolderConfig, error) {
184 defer fcMutex.Unlock()
187 if _, exist := f.folders[newF.ID]; create && exist {
188 return nil, fmt.Errorf("ID already exists")
190 if newF.ClientPath == "" {
191 return nil, fmt.Errorf("ClientPath must be set")
194 // Create a new folder object
195 var fld folder.IFOLDER
198 case folder.TypeCloudSync:
200 return nil, fmt.Errorf("ClownSync type not supported (syncthing not initialized)")
202 fld = f.SThg.NewFolderST(f.Conf)
204 case folder.TypePathMap:
205 fld = folder.NewFolderPathMap(f.Conf)
207 return nil, fmt.Errorf("Unsupported folder type")
210 // Set default value if needed
211 if newF.Status == "" {
212 newF.Status = folder.StatusDisable
214 if newF.Label == "" {
215 newF.Label = filepath.Base(newF.ClientPath) + "_" + newF.ID[0:8]
218 // Allocate a new UUID
224 newF.ID = fld.NewUID(newF.Label[:i])
226 if !create && newF.ID == "" {
227 return nil, fmt.Errorf("Cannot update folder with null ID")
230 // Normalize path (needed for Windows path including bashlashes)
231 newF.ClientPath = common.PathNormalize(newF.ClientPath)
234 newFolder, err := fld.Add(newF)
236 newF.Status = folder.StatusErrorConfig
237 log.Printf("ERROR Adding folder: %v\n", err)
238 return newFolder, err
241 // Add to folders list
242 f.folders[newF.ID] = &fld
244 // Save config on disk
246 if err := f.SaveConfig(); err != nil {
247 return newFolder, err
251 // Register event change callback
252 for _, rcb := range f.registerCB {
253 if err := fld.RegisterEventChange(rcb.cb, rcb.data); err != nil {
254 return newFolder, err
258 // Force sync after creation
259 // (need to defer to be sure that WS events will arrive after HTTP creation reply)
261 time.Sleep(time.Millisecond * 500)
265 return newFolder, nil
268 // Delete deletes a specific folder
269 func (f *Folders) Delete(id string) (folder.FolderConfig, error) {
273 defer fcMutex.Unlock()
275 fld := folder.FolderConfig{}
276 fc, exist := f.folders[id]
278 return fld, fmt.Errorf("unknown id")
281 fld = (*fc).GetConfig()
283 if err = (*fc).Remove(); err != nil {
287 delete(f.folders, id)
289 // Save config on disk
295 // RegisterEventChange requests registration for folder event change
296 func (f *Folders) RegisterEventChange(id string, cb *folder.EventCB, data *folder.EventCBData) error {
298 flds := make(map[string]*folder.IFOLDER)
300 // Register to a specific folder
303 // Register to all folders
305 f.registerCB = append(f.registerCB, RegisteredCB{cb: cb, data: data})
308 for _, fld := range flds {
309 err := (*fld).RegisterEventChange(cb, data)
318 // ForceSync Force the synchronization of a folder
319 func (f *Folders) ForceSync(id string) error {
322 return fmt.Errorf("Unknown id")
327 // IsFolderInSync Returns true when folder is in sync
328 func (f *Folders) IsFolderInSync(id string) (bool, error) {
331 return false, fmt.Errorf("Unknown id")
333 return (*fc).IsInSync()
336 //*** Private functions ***
338 // Use XML format and not json to be able to save/load all fields including
339 // ones that are masked in json (IOW defined with `json:"-"`)
340 type xmlFolders struct {
341 XMLName xml.Name `xml:"folders"`
342 Version string `xml:"version,attr"`
343 Folders []folder.FolderConfig `xml:"folders"`
346 // foldersConfigRead reads folders config from disk
347 func foldersConfigRead(file string, folders *[]folder.FolderConfig) error {
348 if !common.Exists(file) {
349 return fmt.Errorf("No folder config file found (%s)", file)
353 defer ffMutex.Unlock()
355 fd, err := os.Open(file)
362 err = xml.NewDecoder(fd).Decode(&data)
364 *folders = data.Folders
369 // foldersConfigWrite writes folders config on disk
370 func foldersConfigWrite(file string, folders []folder.FolderConfig) error {
372 defer ffMutex.Unlock()
374 fd, err := os.OpenFile(file, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0666)
385 enc := xml.NewEncoder(fd)
387 return enc.Encode(data)