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lib/model: Prevent warning on request in paused folder (fixes #4870)

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Simon Frei 2018-04-09 21:55:52 +02:00 committed by Audrius Butkevicius
parent e9c6795ef8
commit 4072ae4d05
1 changed files with 23 additions and 18 deletions
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41
lib/model/model.go
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@ -1309,23 +1309,33 @@ func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset
return protocol.ErrInvalid
}
if !m.folderSharedWith(folder, deviceID) {
l.Warnf("Request from %s for file %s in unshared folder %q", deviceID, name, folder)
return protocol.ErrNoSuchFile
}
if deviceID != protocol.LocalDeviceID {
l.Debugf("%v REQ(in): %s: %q / %q o=%d s=%d t=%v", m, deviceID, folder, name, offset, len(buf), fromTemporary)
// Make sure the path is valid and in canonical form
var err error
if name, err = fs.Canonicalize(name); err != nil {
l.Debugf("Request from %s in paused folder %q for invalid filename %s", deviceID, folder, name)
return protocol.ErrInvalid
}
m.fmut.RLock()
folderCfg := m.folderCfgs[folder]
folderIgnores := m.folderIgnores[folder]
m.fmut.RUnlock()
folderFs := folderCfg.Filesystem()
if folderCfg.Paused {
l.Debugf("Request from %s for file %s in paused folder %q", deviceID, name, folder)
return protocol.ErrInvalid
}
// Having passed the rootedJoinedPath check above, we know "name" is
// acceptable relative to "folderPath" and in canonical form, so we can
// trust it.
if !m.folderSharedWith(folder, deviceID) {
l.Warnf("Request from %s for file %s in unshared folder %q", deviceID, name, folder)
return protocol.ErrNoSuchFile
}
if deviceID != protocol.LocalDeviceID {
l.Debugf("%v REQ(in): %s: %q / %q o=%d s=%d t=%v", m, deviceID, folder, name, offset, len(buf), fromTemporary)
}
folderFs := folderCfg.Filesystem()
if fs.IsInternal(name) {
l.Debugf("%v REQ(in) for internal file: %s: %q / %q o=%d s=%d", m, deviceID, folder, name, offset, len(buf))
@ -1366,12 +1376,12 @@ func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset
return protocol.ErrNoSuchFile
}
err := readOffsetIntoBuf(folderFs, name, offset, buf)
if fs.IsNotExist(err) {
if err = readOffsetIntoBuf(folderFs, name, offset, buf); fs.IsNotExist(err) {
return protocol.ErrNoSuchFile
} else if err != nil {
return protocol.ErrGeneric
}
return nil
}
@ -1910,7 +1920,7 @@ func (m *Model) internalScanFolderSubdirs(ctx context.Context, folder string, su
m.fmut.RUnlock()
mtimefs := fset.MtimeFS()
for i := 0; i < len(subDirs); i++ {
for i := range subDirs {
sub := osutil.NativeFilename(subDirs[i])
if sub == "" {
@ -1920,11 +1930,6 @@ func (m *Model) internalScanFolderSubdirs(ctx context.Context, folder string, su
break
}
// We test each path by joining with "root". What we join with is
// not relevant, we just want the dotdot escape detection here. For
// historical reasons we may get paths that end in a slash. We
// remove that first to allow the rootedJoinedPath to pass.
sub = strings.TrimRight(sub, string(fs.PathSeparator))
subDirs[i] = sub
}