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