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fs.go
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fs.go
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package putio
import (
"bytes"
"context"
"encoding/base64"
"fmt"
"io"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"time"
"github.com/pkg/errors"
"github.com/putdotio/go-putio/putio"
"github.com/artpar/rclone/fs"
"github.com/artpar/rclone/fs/config/configmap"
"github.com/artpar/rclone/fs/config/configstruct"
"github.com/artpar/rclone/fs/fshttp"
"github.com/artpar/rclone/fs/hash"
"github.com/artpar/rclone/lib/dircache"
"github.com/artpar/rclone/lib/oauthutil"
"github.com/artpar/rclone/lib/pacer"
"github.com/artpar/rclone/lib/readers"
)
// Fs represents a remote Putio server
type Fs struct {
name string // name of this remote
root string // the path we are working on
features *fs.Features // optional features
opt Options // options for this Fs
client *putio.Client // client for making API calls to Put.io
pacer *fs.Pacer // To pace the API calls
dirCache *dircache.DirCache // Map of directory path to directory id
httpClient *http.Client // base http client
oAuthClient *http.Client // http client with oauth Authorization
}
// ------------------------------------------------------------
// Name of the remote (as passed into NewFs)
func (f *Fs) Name() string {
return f.name
}
// Root of the remote (as passed into NewFs)
func (f *Fs) Root() string {
return f.root
}
// String converts this Fs to a string
func (f *Fs) String() string {
return fmt.Sprintf("Putio root '%s'", f.root)
}
// Features returns the optional features of this Fs
func (f *Fs) Features() *fs.Features {
return f.features
}
// parsePath parses a putio 'url'
func parsePath(path string) (root string) {
root = strings.Trim(path, "/")
return
}
// NewFs constructs an Fs from the path, container:path
func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (f fs.Fs, err error) {
// defer log.Trace(name, "root=%v", root)("f=%+v, err=%v", &f, &err)
// Parse config into Options struct
opt := new(Options)
err = configstruct.Set(m, opt)
if err != nil {
return nil, err
}
root = parsePath(root)
httpClient := fshttp.NewClient(ctx)
oAuthClient, _, err := oauthutil.NewClientWithBaseClient(ctx, name, m, putioConfig, httpClient)
if err != nil {
return nil, errors.Wrap(err, "failed to configure putio")
}
p := &Fs{
name: name,
root: root,
opt: *opt,
pacer: fs.NewPacer(ctx, pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
client: putio.NewClient(oAuthClient),
httpClient: httpClient,
oAuthClient: oAuthClient,
}
p.features = (&fs.Features{
DuplicateFiles: true,
ReadMimeType: true,
CanHaveEmptyDirectories: true,
}).Fill(ctx, p)
p.dirCache = dircache.New(root, "0", p)
// Find the current root
err = p.dirCache.FindRoot(ctx, false)
if err != nil {
// Assume it is a file
newRoot, remote := dircache.SplitPath(root)
tempF := *p
tempF.dirCache = dircache.New(newRoot, "0", &tempF)
tempF.root = newRoot
// Make new Fs which is the parent
err = tempF.dirCache.FindRoot(ctx, false)
if err != nil {
// No root so return old f
return p, nil
}
_, err := tempF.NewObject(ctx, remote)
if err != nil {
// unable to list folder so return old f
return p, nil
}
// XXX: update the old f here instead of returning tempF, since
// `features` were already filled with functions having *f as a receiver.
// See https://github.com/artpar/rclone/issues/2182
p.dirCache = tempF.dirCache
p.root = tempF.root
return p, fs.ErrorIsFile
}
// fs.Debugf(p, "Root id: %s", p.dirCache.RootID())
return p, nil
}
func itoa(i int64) string {
return strconv.FormatInt(i, 10)
}
func atoi(a string) int64 {
i, err := strconv.ParseInt(a, 10, 64)
if err != nil {
panic(err)
}
return i
}
// CreateDir makes a directory with pathID as parent and name leaf
func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string, err error) {
// defer log.Trace(f, "pathID=%v, leaf=%v", pathID, leaf)("newID=%v, err=%v", newID, &err)
parentID := atoi(pathID)
var entry putio.File
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "creating folder. part: %s, parentID: %d", leaf, parentID)
entry, err = f.client.Files.CreateFolder(ctx, f.opt.Enc.FromStandardName(leaf), parentID)
return shouldRetry(ctx, err)
})
return itoa(entry.ID), err
}
// FindLeaf finds a directory of name leaf in the folder with ID pathID
func (f *Fs) FindLeaf(ctx context.Context, pathID, leaf string) (pathIDOut string, found bool, err error) {
// defer log.Trace(f, "pathID=%v, leaf=%v", pathID, leaf)("pathIDOut=%v, found=%v, err=%v", pathIDOut, found, &err)
if pathID == "0" && leaf == "" {
// that's the root directory
return pathID, true, nil
}
fileID := atoi(pathID)
var children []putio.File
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "listing file: %d", fileID)
children, _, err = f.client.Files.List(ctx, fileID)
return shouldRetry(ctx, err)
})
if err != nil {
if perr, ok := err.(*putio.ErrorResponse); ok && perr.Response.StatusCode == 404 {
err = nil
}
return
}
for _, child := range children {
if f.opt.Enc.ToStandardName(child.Name) == leaf {
found = true
pathIDOut = itoa(child.ID)
if !child.IsDir() {
err = fs.ErrorIsFile
}
return
}
}
return
}
// List the objects and directories in dir into entries. The
// entries can be returned in any order but should be for a
// complete directory.
//
// dir should be "" to list the root, and should not have
// trailing slashes.
//
// This should return ErrDirNotFound if the directory isn't
// found.
func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
// defer log.Trace(f, "dir=%v", dir)("err=%v", &err)
directoryID, err := f.dirCache.FindDir(ctx, dir, false)
if err != nil {
return nil, err
}
parentID := atoi(directoryID)
var children []putio.File
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "listing files inside List: %d", parentID)
children, _, err = f.client.Files.List(ctx, parentID)
return shouldRetry(ctx, err)
})
if err != nil {
return
}
for _, child := range children {
remote := path.Join(dir, f.opt.Enc.ToStandardName(child.Name))
// fs.Debugf(f, "child: %s", remote)
if child.IsDir() {
f.dirCache.Put(remote, itoa(child.ID))
d := fs.NewDir(remote, child.UpdatedAt.Time)
entries = append(entries, d)
} else {
o, err := f.newObjectWithInfo(ctx, remote, child)
if err != nil {
return nil, err
}
entries = append(entries, o)
}
}
return
}
// Put the object
//
// Copy the reader in to the new object which is returned
//
// The new object may have been created if an error is returned
func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (o fs.Object, err error) {
// defer log.Trace(f, "src=%+v", src)("o=%+v, err=%v", &o, &err)
existingObj, err := f.NewObject(ctx, src.Remote())
switch err {
case nil:
return existingObj, existingObj.Update(ctx, in, src, options...)
case fs.ErrorObjectNotFound:
// Not found so create it
return f.PutUnchecked(ctx, in, src, options...)
default:
return nil, err
}
}
// PutUnchecked uploads the object
//
// This will create a duplicate if we upload a new file without
// checking to see if there is one already - use Put() for that.
func (f *Fs) PutUnchecked(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (o fs.Object, err error) {
// defer log.Trace(f, "src=%+v", src)("o=%+v, err=%v", &o, &err)
size := src.Size()
remote := src.Remote()
leaf, directoryID, err := f.dirCache.FindPath(ctx, remote, true)
if err != nil {
return nil, err
}
loc, err := f.createUpload(ctx, leaf, size, directoryID, src.ModTime(ctx), options)
if err != nil {
return nil, err
}
fileID, err := f.sendUpload(ctx, loc, size, in)
if err != nil {
return nil, err
}
var entry putio.File
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "getting file: %d", fileID)
entry, err = f.client.Files.Get(ctx, fileID)
return shouldRetry(ctx, err)
})
if err != nil {
return nil, err
}
return f.newObjectWithInfo(ctx, remote, entry)
}
func (f *Fs) createUpload(ctx context.Context, name string, size int64, parentID string, modTime time.Time, options []fs.OpenOption) (location string, err error) {
// defer log.Trace(f, "name=%v, size=%v, parentID=%v, modTime=%v", name, size, parentID, modTime.String())("location=%v, err=%v", location, &err)
err = f.pacer.Call(func() (bool, error) {
req, err := http.NewRequestWithContext(ctx, "POST", "https://upload.put.io/files/", nil)
if err != nil {
return false, err
}
req.Header.Set("tus-resumable", "1.0.0")
req.Header.Set("upload-length", strconv.FormatInt(size, 10))
b64name := base64.StdEncoding.EncodeToString([]byte(f.opt.Enc.FromStandardName(name)))
b64true := base64.StdEncoding.EncodeToString([]byte("true"))
b64parentID := base64.StdEncoding.EncodeToString([]byte(parentID))
b64modifiedAt := base64.StdEncoding.EncodeToString([]byte(modTime.Format(time.RFC3339)))
req.Header.Set("upload-metadata", fmt.Sprintf("name %s,no-torrent %s,parent_id %s,updated-at %s", b64name, b64true, b64parentID, b64modifiedAt))
fs.OpenOptionAddHTTPHeaders(req.Header, options)
resp, err := f.oAuthClient.Do(req)
retry, err := shouldRetry(ctx, err)
if retry {
return true, err
}
if err != nil {
return false, err
}
if resp.StatusCode != 201 {
return false, fmt.Errorf("unexpected status code from upload create: %d", resp.StatusCode)
}
location = resp.Header.Get("location")
if location == "" {
return false, errors.New("empty location header from upload create")
}
return false, nil
})
return
}
func (f *Fs) sendUpload(ctx context.Context, location string, size int64, in io.Reader) (fileID int64, err error) {
// defer log.Trace(f, "location=%v, size=%v", location, size)("fileID=%v, err=%v", &fileID, &err)
if size == 0 {
err = f.pacer.Call(func() (bool, error) {
fs.Debugf(f, "Sending zero length chunk")
_, fileID, err = f.transferChunk(ctx, location, 0, bytes.NewReader([]byte{}), 0)
return shouldRetry(ctx, err)
})
return
}
var clientOffset int64
var offsetMismatch bool
buf := make([]byte, defaultChunkSize)
for clientOffset < size {
chunkSize := size - clientOffset
if chunkSize >= int64(defaultChunkSize) {
chunkSize = int64(defaultChunkSize)
}
chunk := readers.NewRepeatableLimitReaderBuffer(in, buf, chunkSize)
chunkStart := clientOffset
reqSize := chunkSize
transferOffset := clientOffset
fs.Debugf(f, "chunkStart: %d, reqSize: %d", chunkStart, reqSize)
// Transfer the chunk
err = f.pacer.Call(func() (bool, error) {
if offsetMismatch {
// Get file offset and seek to the position
offset, err := f.getServerOffset(ctx, location)
if err != nil {
return shouldRetry(ctx, err)
}
sentBytes := offset - chunkStart
fs.Debugf(f, "sentBytes: %d", sentBytes)
_, err = chunk.Seek(sentBytes, io.SeekStart)
if err != nil {
return shouldRetry(ctx, err)
}
transferOffset = offset
reqSize = chunkSize - sentBytes
offsetMismatch = false
}
fs.Debugf(f, "Sending chunk. transferOffset: %d length: %d", transferOffset, reqSize)
var serverOffset int64
serverOffset, fileID, err = f.transferChunk(ctx, location, transferOffset, chunk, reqSize)
if cerr, ok := err.(*statusCodeError); ok && cerr.response.StatusCode == 409 {
offsetMismatch = true
return true, err
}
if serverOffset != (transferOffset + reqSize) {
offsetMismatch = true
return true, errors.New("connection broken")
}
return shouldRetry(ctx, err)
})
if err != nil {
return
}
clientOffset += chunkSize
}
return
}
func (f *Fs) getServerOffset(ctx context.Context, location string) (offset int64, err error) {
// defer log.Trace(f, "location=%v", location)("offset=%v, err=%v", &offset, &err)
req, err := f.makeUploadHeadRequest(ctx, location)
if err != nil {
return 0, err
}
resp, err := f.oAuthClient.Do(req)
if err != nil {
return 0, err
}
err = checkStatusCode(resp, 200)
if err != nil {
return 0, err
}
return strconv.ParseInt(resp.Header.Get("upload-offset"), 10, 64)
}
func (f *Fs) transferChunk(ctx context.Context, location string, start int64, chunk io.ReadSeeker, chunkSize int64) (serverOffset, fileID int64, err error) {
// defer log.Trace(f, "location=%v, start=%v, chunkSize=%v", location, start, chunkSize)("fileID=%v, err=%v", &fileID, &err)
req, err := f.makeUploadPatchRequest(ctx, location, chunk, start, chunkSize)
if err != nil {
return
}
resp, err := f.oAuthClient.Do(req)
if err != nil {
return
}
defer func() {
_ = resp.Body.Close()
}()
err = checkStatusCode(resp, 204)
if err != nil {
return
}
serverOffset, err = strconv.ParseInt(resp.Header.Get("upload-offset"), 10, 64)
if err != nil {
return
}
sfid := resp.Header.Get("putio-file-id")
if sfid != "" {
fileID, err = strconv.ParseInt(sfid, 10, 64)
if err != nil {
return
}
}
return
}
func (f *Fs) makeUploadHeadRequest(ctx context.Context, location string) (*http.Request, error) {
req, err := http.NewRequestWithContext(ctx, "HEAD", location, nil)
if err != nil {
return nil, err
}
req.Header.Set("tus-resumable", "1.0.0")
return req, nil
}
func (f *Fs) makeUploadPatchRequest(ctx context.Context, location string, in io.Reader, offset, length int64) (*http.Request, error) {
req, err := http.NewRequestWithContext(ctx, "PATCH", location, in)
if err != nil {
return nil, err
}
req.Header.Set("tus-resumable", "1.0.0")
req.Header.Set("upload-offset", strconv.FormatInt(offset, 10))
req.Header.Set("content-length", strconv.FormatInt(length, 10))
req.Header.Set("content-type", "application/offset+octet-stream")
return req, nil
}
// Mkdir creates the container if it doesn't exist
func (f *Fs) Mkdir(ctx context.Context, dir string) (err error) {
// defer log.Trace(f, "dir=%v", dir)("err=%v", &err)
_, err = f.dirCache.FindDir(ctx, dir, true)
return err
}
// purgeCheck removes the root directory, if check is set then it
// refuses to do so if it has anything in
func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error) {
// defer log.Trace(f, "dir=%v", dir)("err=%v", &err)
root := strings.Trim(path.Join(f.root, dir), "/")
// can't remove root
if root == "" {
return errors.New("can't remove root directory")
}
// check directory exists
directoryID, err := f.dirCache.FindDir(ctx, dir, false)
if err != nil {
return errors.Wrap(err, "Rmdir")
}
dirID := atoi(directoryID)
if check {
// check directory empty
var children []putio.File
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "listing files: %d", dirID)
children, _, err = f.client.Files.List(ctx, dirID)
return shouldRetry(ctx, err)
})
if err != nil {
return errors.Wrap(err, "Rmdir")
}
if len(children) != 0 {
return errors.New("directory not empty")
}
}
// remove it
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "deleting file: %d", dirID)
err = f.client.Files.Delete(ctx, dirID)
return shouldRetry(ctx, err)
})
f.dirCache.FlushDir(dir)
return err
}
// Rmdir deletes the container
//
// Returns an error if it isn't empty
func (f *Fs) Rmdir(ctx context.Context, dir string) (err error) {
return f.purgeCheck(ctx, dir, true)
}
// Precision returns the precision
func (f *Fs) Precision() time.Duration {
return time.Second
}
// Purge deletes all the files in the directory
//
// Optional interface: Only implement this if you have a way of
// deleting all the files quicker than just running Remove() on the
// result of List()
func (f *Fs) Purge(ctx context.Context, dir string) (err error) {
// defer log.Trace(f, "")("err=%v", &err)
return f.purgeCheck(ctx, dir, false)
}
// Copy src to this remote using server-side copy operations.
//
// This is stored with the remote path given
//
// It returns the destination Object and a possible error
//
// Will only be called if src.Fs().Name() == f.Name()
//
// If it isn't possible then return fs.ErrorCantCopy
func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (o fs.Object, err error) {
// defer log.Trace(f, "src=%+v, remote=%v", src, remote)("o=%+v, err=%v", &o, &err)
srcObj, ok := src.(*Object)
if !ok {
return nil, fs.ErrorCantCopy
}
leaf, directoryID, err := f.dirCache.FindPath(ctx, remote, true)
if err != nil {
return nil, err
}
err = f.pacer.Call(func() (bool, error) {
params := url.Values{}
params.Set("file_id", strconv.FormatInt(srcObj.file.ID, 10))
params.Set("parent_id", directoryID)
params.Set("name", f.opt.Enc.FromStandardName(leaf))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/copy", strings.NewReader(params.Encode()))
if err != nil {
return false, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
// fs.Debugf(f, "copying file (%d) to parent_id: %s", srcObj.file.ID, directoryID)
_, err = f.client.Do(req, nil)
return shouldRetry(ctx, err)
})
if err != nil {
return nil, err
}
return f.NewObject(ctx, remote)
}
// Move src to this remote using server-side move operations.
//
// This is stored with the remote path given
//
// It returns the destination Object and a possible error
//
// Will only be called if src.Fs().Name() == f.Name()
//
// If it isn't possible then return fs.ErrorCantMove
func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (o fs.Object, err error) {
// defer log.Trace(f, "src=%+v, remote=%v", src, remote)("o=%+v, err=%v", &o, &err)
srcObj, ok := src.(*Object)
if !ok {
return nil, fs.ErrorCantMove
}
leaf, directoryID, err := f.dirCache.FindPath(ctx, remote, true)
if err != nil {
return nil, err
}
err = f.pacer.Call(func() (bool, error) {
params := url.Values{}
params.Set("file_id", strconv.FormatInt(srcObj.file.ID, 10))
params.Set("parent_id", directoryID)
params.Set("name", f.opt.Enc.FromStandardName(leaf))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/move", strings.NewReader(params.Encode()))
if err != nil {
return false, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
// fs.Debugf(f, "moving file (%d) to parent_id: %s", srcObj.file.ID, directoryID)
_, err = f.client.Do(req, nil)
return shouldRetry(ctx, err)
})
if err != nil {
return nil, err
}
return f.NewObject(ctx, remote)
}
// DirMove moves src, srcRemote to this remote at dstRemote
// using server-side move operations.
//
// Will only be called if src.Fs().Name() == f.Name()
//
// If it isn't possible then return fs.ErrorCantDirMove
//
// If destination exists then return fs.ErrorDirExists
func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string) (err error) {
// defer log.Trace(f, "src=%+v, srcRemote=%v, dstRemote", src, srcRemote, dstRemote)("err=%v", &err)
srcFs, ok := src.(*Fs)
if !ok {
return fs.ErrorCantDirMove
}
srcID, _, _, dstDirectoryID, dstLeaf, err := f.dirCache.DirMove(ctx, srcFs.dirCache, srcFs.root, srcRemote, f.root, dstRemote)
if err != nil {
return err
}
err = f.pacer.Call(func() (bool, error) {
params := url.Values{}
params.Set("file_id", srcID)
params.Set("parent_id", dstDirectoryID)
params.Set("name", f.opt.Enc.FromStandardName(dstLeaf))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/move", strings.NewReader(params.Encode()))
if err != nil {
return false, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
// fs.Debugf(f, "moving file (%s) to parent_id: %s", srcID, dstDirectoryID)
_, err = f.client.Do(req, nil)
return shouldRetry(ctx, err)
})
srcFs.dirCache.FlushDir(srcRemote)
return err
}
// About gets quota information
func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
// defer log.Trace(f, "")("usage=%+v, err=%v", usage, &err)
var ai putio.AccountInfo
err = f.pacer.Call(func() (bool, error) {
// fs.Debugf(f, "getting account info")
ai, err = f.client.Account.Info(ctx)
return shouldRetry(ctx, err)
})
if err != nil {
return nil, errors.Wrap(err, "about failed")
}
return &fs.Usage{
Total: fs.NewUsageValue(ai.Disk.Size), // quota of bytes that can be used
Used: fs.NewUsageValue(ai.Disk.Used), // bytes in use
Free: fs.NewUsageValue(ai.Disk.Avail), // bytes which can be uploaded before reaching the quota
}, nil
}
// Hashes returns the supported hash sets.
func (f *Fs) Hashes() hash.Set {
return hash.Set(hash.CRC32)
}
// DirCacheFlush resets the directory cache - used in testing as an
// optional interface
func (f *Fs) DirCacheFlush() {
// defer log.Trace(f, "")("")
f.dirCache.ResetRoot()
}
// CleanUp the trash in the Fs
func (f *Fs) CleanUp(ctx context.Context) (err error) {
// defer log.Trace(f, "")("err=%v", &err)
return f.pacer.Call(func() (bool, error) {
req, err := f.client.NewRequest(ctx, "POST", "/v2/trash/empty", nil)
if err != nil {
return false, err
}
// fs.Debugf(f, "emptying trash")
_, err = f.client.Do(req, nil)
return shouldRetry(ctx, err)
})
}