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Merge pull request #1259 from calmh/check-folder-shared

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Verify folder<->device permission in Request
This commit is contained in:
Audrius Butkevicius 2015-01-16 12:07:37 +00:00
commit 5ac7564bfe
2 changed files with 32 additions and 4 deletions
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9
internal/model/model.go
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@ -710,9 +710,14 @@ func (m *Model) Close(device protocol.DeviceID, err error) {
// Request returns the specified data segment by reading it from local disk. // Request returns the specified data segment by reading it from local disk.
// Implements the protocol.Model interface. // Implements the protocol.Model interface.
func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset int64, size int) ([]byte, error) { func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset int64, size int) ([]byte, error) {
if !m.folderSharedWith(folder, deviceID) {
l.Warnf("Request from %s for file %s in unshared folder %q", deviceID, name, folder)
return nil, ErrNoSuchFile
}
// Verify that the requested file exists in the local model. // Verify that the requested file exists in the local model.
m.fmut.RLock() m.fmut.RLock()
r, ok := m.folderFiles[folder] folderFiles, ok := m.folderFiles[folder]
m.fmut.RUnlock() m.fmut.RUnlock()
if !ok { if !ok {
@ -720,7 +725,7 @@ func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset
return nil, ErrNoSuchFile return nil, ErrNoSuchFile
} }
lf, ok := r.Get(protocol.LocalDeviceID, name) lf, ok := folderFiles.Get(protocol.LocalDeviceID, name)
if !ok { if !ok {
return nil, ErrNoSuchFile return nil, ErrNoSuchFile
} }

27
internal/model/model_test.go
View File

@ -68,18 +68,41 @@ func init() {
func TestRequest(t *testing.T) { func TestRequest(t *testing.T) {
db, _ := leveldb.Open(storage.NewMemStorage(), nil) db, _ := leveldb.Open(storage.NewMemStorage(), nil)
m := NewModel(config.Wrap("/tmp/test", config.Configuration{}), "device", "syncthing", "dev", db) m := NewModel(config.Wrap("/tmp/test", config.Configuration{}), "device", "syncthing", "dev", db)
m.AddFolder(config.FolderConfiguration{ID: "default", Path: "testdata"})
// device1 shares default, but device2 doesn't
m.AddFolder(config.FolderConfiguration{ID: "default", Path: "testdata", Devices: []config.FolderDeviceConfiguration{{DeviceID: device1}}})
m.ScanFolder("default") m.ScanFolder("default")
// Existing, shared file
bs, err := m.Request(device1, "default", "foo", 0, 6) bs, err := m.Request(device1, "default", "foo", 0, 6)
if err != nil { if err != nil {
t.Fatal(err) t.Error(err)
} }
if bytes.Compare(bs, []byte("foobar")) != 0 { if bytes.Compare(bs, []byte("foobar")) != 0 {
t.Errorf("Incorrect data from request: %q", string(bs)) t.Errorf("Incorrect data from request: %q", string(bs))
} }
// Existing, nonshared file
bs, err = m.Request(device2, "default", "foo", 0, 6)
if err == nil {
t.Error("Unexpected nil error on insecure file read")
}
if bs != nil {
t.Errorf("Unexpected non nil data on insecure file read: %q", string(bs))
}
// Nonexistent file
bs, err = m.Request(device1, "default", "nonexistent", 0, 6)
if err == nil {
t.Error("Unexpected nil error on insecure file read")
}
if bs != nil {
t.Errorf("Unexpected non nil data on insecure file read: %q", string(bs))
}
// Shared folder, but disallowed file name
bs, err = m.Request(device1, "default", "../walk.go", 0, 6) bs, err = m.Request(device1, "default", "../walk.go", 0, 6)
if err == nil { if err == nil {
t.Error("Unexpected nil error on insecure file read") t.Error("Unexpected nil error on insecure file read")