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zrok.go
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zrok.go
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package sync
import (
"context"
"github.com/openziti/zrok/drives/davClient"
"github.com/openziti/zrok/environment/env_core"
"github.com/openziti/zrok/sdk/golang/sdk"
"github.com/pkg/errors"
"io"
"net"
"net/http"
"net/url"
"os"
"path/filepath"
"strings"
"time"
)
type ZrokTargetConfig struct {
URL *url.URL
Root env_core.Root
}
type ZrokTarget struct {
cfg *ZrokTargetConfig
dc *davClient.Client
}
type zrokDialContext struct {
root env_core.Root
}
func (zdc *zrokDialContext) Dial(_ context.Context, _, addr string) (net.Conn, error) {
share := strings.Split(addr, ":")[0]
return sdk.NewDialer(share, zdc.root)
}
func NewZrokTarget(cfg *ZrokTargetConfig) (*ZrokTarget, error) {
transport := http.DefaultTransport.(*http.Transport).Clone()
transport.DialContext = (&zrokDialContext{cfg.Root}).Dial
transport.TLSClientConfig.InsecureSkipVerify = true
httpUrl := strings.Replace(cfg.URL.String(), "zrok:", "http:", 1)
dc, err := davClient.NewClient(&http.Client{Transport: transport}, httpUrl)
if err != nil {
return nil, err
}
return &ZrokTarget{cfg: cfg, dc: dc}, nil
}
func (t *ZrokTarget) Inventory() ([]*Object, error) {
rootFi, err := t.dc.Stat(context.Background(), t.cfg.URL.Path)
if err != nil {
return nil, err
}
if !rootFi.IsDir {
base := filepath.Base(t.cfg.URL.Path)
t.cfg.URL.Path = filepath.Dir(t.cfg.URL.Path)
return []*Object{{
Path: "/" + base,
IsDir: false,
Size: rootFi.Size,
Modified: rootFi.ModTime,
}}, nil
}
fis, err := t.dc.Readdir(context.Background(), t.cfg.URL.Path, true)
if err != nil {
return nil, err
}
var objects []*Object
for _, fi := range fis {
if fi.Path != "/" {
objects = append(objects, &Object{
Path: fi.Path,
IsDir: fi.IsDir,
Size: fi.Size,
Modified: fi.ModTime,
ETag: fi.ETag,
})
}
}
return objects, nil
}
func (t *ZrokTarget) Dir(path string) ([]*Object, error) {
fis, err := t.dc.Readdir(context.Background(), t.cfg.URL.Path, false)
if err != nil {
return nil, err
}
var objects []*Object
for _, fi := range fis {
if fi.Path != "/" && fi.Path != t.cfg.URL.Path+"/" {
objects = append(objects, &Object{
Path: filepath.Base(fi.Path),
IsDir: fi.IsDir,
Size: fi.Size,
Modified: fi.ModTime,
})
}
}
return objects, nil
}
func (t *ZrokTarget) Mkdir(path string) error {
fi, err := t.dc.Stat(context.Background(), filepath.Join(t.cfg.URL.Path, path))
if err == nil {
if fi.IsDir {
return nil
}
return errors.Errorf("'%v' already exists; not directory", path)
}
return t.dc.Mkdir(context.Background(), filepath.Join(t.cfg.URL.Path, path))
}
func (t *ZrokTarget) ReadStream(path string) (io.ReadCloser, error) {
return t.dc.Open(context.Background(), filepath.Join(t.cfg.URL.Path, path))
}
func (t *ZrokTarget) WriteStream(path string, rs io.Reader, _ os.FileMode) error {
ws, err := t.dc.Create(context.Background(), filepath.Join(t.cfg.URL.Path, path))
if err != nil {
return err
}
defer func() { _ = ws.Close() }()
_, err = io.Copy(ws, rs)
if err != nil {
return err
}
return nil
}
func (t *ZrokTarget) WriteStreamWithModTime(path string, rs io.Reader, _ os.FileMode, modTime time.Time) error {
ws, err := t.dc.CreateWithModTime(context.Background(), filepath.Join(t.cfg.URL.Path, path), modTime)
if err != nil {
return err
}
defer func() { _ = ws.Close() }()
_, err = io.Copy(ws, rs)
if err != nil {
return err
}
return nil
}
func (t *ZrokTarget) Move(src, dest string) error {
return t.dc.MoveAll(context.Background(), filepath.Join(t.cfg.URL.Path, src), dest, true)
}
func (t *ZrokTarget) Rm(path string) error {
return t.dc.RemoveAll(context.Background(), filepath.Join(t.cfg.URL.Path, path))
}
func (t *ZrokTarget) SetModificationTime(path string, mtime time.Time) error {
return t.dc.Touch(context.Background(), filepath.Join(t.cfg.URL.Path, path), mtime)
}