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lib/config: Remove "Invalid" attribute (fixes #2471)

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This contains the following behavioral changes:

 - Duplicate folder IDs is now fatal during startup
 - Invalid folder flags in the ClusterConfig is fatal for the connection
   (this will go away soon with the proto changes, as we won't have any
   unknown flags any more then)
 - Empty path is a folder error reported at runtime

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3370
This commit is contained in:
Jakob Borg
2016-07-02 19:38:39 +00:00
committed by Audrius Butkevicius
parent 8e39e2889d
commit 6d357211b2
11 changed files with 156 additions and 80 deletions
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26
lib/model/model.go
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@@ -110,6 +110,7 @@ var (
// errors returned by the CheckFolderHealth method
var (
errFolderPathEmpty = errors.New("folder path empty")
errFolderPathMissing = errors.New("folder path missing")
errFolderMarkerMissing = errors.New("folder marker missing")
errHomeDiskNoSpace = errors.New("home disk has insufficient free space")
@@ -658,23 +659,19 @@ func (m *Model) ClusterConfig(deviceID protocol.DeviceID, cm protocol.ClusterCon
tempIndexFolders := make([]string, 0, len(cm.Folders))
m.fmut.Lock()
nextFolder:
for _, folder := range cm.Folders {
cfg := m.folderCfgs[folder.ID]
if folder.Flags&^protocol.FlagFolderAll != 0 {
// There are flags set that we don't know what they mean. Scary!
// There are flags set that we don't know what they mean. Fatal!
l.Warnf("Device %v: unknown flags for folder %s", deviceID, folder.ID)
cfg.Invalid = fmt.Sprintf("Unknown flags from device %v", deviceID)
m.cfg.SetFolder(cfg)
if srv := m.folderRunners[folder.ID]; srv != nil {
srv.setError(fmt.Errorf(cfg.Invalid))
}
continue nextFolder
m.fmut.Unlock()
m.Close(deviceID, fmt.Errorf("Unknown folder flags from device %v", deviceID))
return
}
if !m.folderSharedWithUnlocked(folder.ID, deviceID) {
m.fmut.Lock()
shared := m.folderSharedWithUnlocked(folder.ID, deviceID)
m.fmut.Unlock()
if !shared {
events.Default.Log(events.FolderRejected, map[string]string{
"folder": folder.ID,
"folderLabel": folder.Label,
@@ -687,7 +684,6 @@ nextFolder:
tempIndexFolders = append(tempIndexFolders, folder.ID)
}
}
m.fmut.Unlock()
// This breaks if we send multiple CM messages during the same connection.
if len(tempIndexFolders) > 0 {
@@ -1953,6 +1949,10 @@ func (m *Model) CheckFolderHealth(id string) error {
// checkFolderPath returns nil if the folder path exists and has the marker file.
func (m *Model) checkFolderPath(folder config.FolderConfiguration) error {
if folder.Path() == "" {
return errFolderPathEmpty
}
if fi, err := os.Stat(folder.Path()); err != nil || !fi.IsDir() {
return errFolderPathMissing
}