package policy import ( "context" "path" "sync" "github.com/rclone/rclone/backend/union/upstream" "github.com/rclone/rclone/fs" ) func init() { registerPolicy("epall", &EpAll{}) } // EpAll stands for existing path, all // Action category: apply to all found. // Create category: apply to all found. // Search category: same as epff. type EpAll struct { EpFF } func (p *EpAll) epall(ctx context.Context, upstreams []*upstream.Fs, filePath string) ([]*upstream.Fs, error) { var wg sync.WaitGroup ufs := make([]*upstream.Fs, len(upstreams)) for i, u := range upstreams { wg.Add(1) i, u := i, u // Closure go func() { rfs := u.RootFs remote := path.Join(u.RootPath, filePath) if findEntry(ctx, rfs, remote) != nil { ufs[i] = u } wg.Done() }() } wg.Wait() var results []*upstream.Fs for _, f := range ufs { if f != nil { results = append(results, f) } } if len(results) == 0 { return nil, fs.ErrorObjectNotFound } return results, nil } // Action category policy, governing the modification of files and directories func (p *EpAll) Action(ctx context.Context, upstreams []*upstream.Fs, path string) ([]*upstream.Fs, error) { if len(upstreams) == 0 { return nil, fs.ErrorObjectNotFound } upstreams = filterRO(upstreams) if len(upstreams) == 0 { return nil, fs.ErrorPermissionDenied } return p.epall(ctx, upstreams, path) } // ActionEntries is ACTION category policy but receiving a set of candidate entries func (p *EpAll) ActionEntries(entries ...upstream.Entry) ([]upstream.Entry, error) { if len(entries) == 0 { return nil, fs.ErrorObjectNotFound } entries = filterROEntries(entries) if len(entries) == 0 { return nil, fs.ErrorPermissionDenied } return entries, nil } // Create category policy, governing the creation of files and directories func (p *EpAll) Create(ctx context.Context, upstreams []*upstream.Fs, path string) ([]*upstream.Fs, error) { if len(upstreams) == 0 { return nil, fs.ErrorObjectNotFound } upstreams = filterNC(upstreams) if len(upstreams) == 0 { return nil, fs.ErrorPermissionDenied } upstreams, err := p.epall(ctx, upstreams, path+"/..") return upstreams, err } // CreateEntries is CREATE category policy but receiving a set of candidate entries func (p *EpAll) CreateEntries(entries ...upstream.Entry) ([]upstream.Entry, error) { if len(entries) == 0 { return nil, fs.ErrorObjectNotFound } entries = filterNCEntries(entries) if len(entries) == 0 { return nil, fs.ErrorPermissionDenied } return entries, nil }