/
files.go
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/
files.go
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package putio
import (
"bytes"
"context"
"fmt"
"io"
"mime/multipart"
"net/http"
"net/url"
"strconv"
"strings"
)
// FilesService is a general service to gather information about user files,
// such as listing, searching, creating new ones, or just fetching a single
// file.
type FilesService struct {
client *Client
redirectOnceClient *Client
}
// File represents a Put.io file.
type File struct {
ID int64 `json:"id"`
Name string `json:"name"`
Size int64 `json:"size"`
ContentType string `json:"content_type"`
CreatedAt *Time `json:"created_at"`
FirstAccessedAt *Time `json:"first_accessed_at"`
ParentID int64 `json:"parent_id"`
Screenshot string `json:"screenshot"`
OpensubtitlesHash string `json:"opensubtitles_hash"`
IsMP4Available bool `json:"is_mp4_available"`
Icon string `json:"icon"`
CRC32 string `json:"crc32"`
IsShared bool `json:"is_shared"`
}
func (f *File) String() string {
return fmt.Sprintf("<ID: %v Name: %q Size: %v>", f.ID, f.Name, f.Size)
}
// IsDir reports whether the file is a directory.
func (f *File) IsDir() bool {
return f.ContentType == "application/x-directory"
}
// Search represents a search response.
type Search struct {
Files []File `json:"files"`
Next string `json:"next"`
}
// Subtitle represents a subtitle.
type Subtitle struct {
Key string
Language string
Name string
Source string
}
// Upload represents a Put.io upload. If the uploaded file is a torrent file,
// Transfer field will represent the status of the transfer.
type Upload struct {
File *File `json:"file"`
Transfer *Transfer `json:"transfer"`
}
type share struct {
FileID int64 `json:"file_id"`
Filename string `json:"file_name"`
// Number of friends the file is shared with
SharedWith int64 `json:"shared_with"`
}
// Get fetches file metadata for given file ID.
func (f *FilesService) Get(ctx context.Context, id int64) (File, error) {
if id < 0 {
return File{}, errNegativeID
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/"+itoa(id), nil)
if err != nil {
return File{}, err
}
var r struct {
File File `json:"file"`
}
_, err = f.client.Do(req, &r)
if err != nil {
return File{}, err
}
return r.File, nil
}
// List fetches children for given directory ID.
func (f *FilesService) List(ctx context.Context, id int64) ([]File, File, error) {
if id < 0 {
return nil, File{}, errNegativeID
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/list?parent_id="+itoa(id), nil)
if err != nil {
return nil, File{}, err
}
var r struct {
Files []File `json:"files"`
Parent File `json:"parent"`
}
_, err = f.client.Do(req, &r)
if err != nil {
return nil, File{}, err
}
return r.Files, r.Parent, nil
}
// Download fetches the contents of the given file. Callers can pass additional
// useTunnel parameter to fetch the file from nearest tunnel server. Storage
// servers accept Range requests, so a range header can be provided by headers
// parameter.
//
// Download request is done by the client which is provided to the NewClient
// constructor. Additional client tunings are taken into consideration while
// downloading a file, such as Timeout etc.
func (f *FilesService) Download(ctx context.Context, id int64, useTunnel bool, headers http.Header) (io.ReadCloser, error) {
if id < 0 {
return nil, errNegativeID
}
notunnel := "notunnel=1"
if useTunnel {
notunnel = "notunnel=0"
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/"+itoa(id)+"/download?"+notunnel, nil)
if err != nil {
return nil, err
}
// merge headers with request headers
for header, values := range headers {
for _, value := range values {
req.Header.Add(header, value)
}
}
// Download requests should not follow redirects since an HTTP redirect
// ignores original request headers. We want to preserve those headers
// (i.e. Range headers)
resp, err := f.redirectOnceClient.Do(req, nil)
if err != nil {
return nil, err
}
return resp.Body, nil
}
// CreateFolder creates a new folder under parent.
func (f *FilesService) CreateFolder(ctx context.Context, name string, parent int64) (File, error) {
if name == "" {
return File{}, fmt.Errorf("empty folder name")
}
if parent < 0 {
return File{}, errNegativeID
}
params := url.Values{}
params.Set("name", name)
params.Set("parent_id", itoa(parent))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/create-folder", strings.NewReader(params.Encode()))
if err != nil {
return File{}, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
var r struct {
File File `json:"file"`
}
_, err = f.client.Do(req, &r)
if err != nil {
return File{}, err
}
return r.File, nil
}
// Delete deletes given files.
func (f *FilesService) Delete(ctx context.Context, files ...int64) error {
if len(files) == 0 {
return fmt.Errorf("no file id is given")
}
var ids []string
for _, id := range files {
if id < 0 {
return errNegativeID
}
ids = append(ids, itoa(id))
}
params := url.Values{}
params.Set("file_ids", strings.Join(ids, ","))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/delete", strings.NewReader(params.Encode()))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
_, err = f.client.Do(req, &struct{}{})
return err
}
// Rename change the name of the file to newname.
func (f *FilesService) Rename(ctx context.Context, id int64, newname string) error {
if id < 0 {
return errNegativeID
}
if newname == "" {
return fmt.Errorf("new filename cannot be empty")
}
params := url.Values{}
params.Set("file_id", itoa(id))
params.Set("name", newname)
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/rename", strings.NewReader(params.Encode()))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
_, err = f.client.Do(req, &struct{}{})
return err
}
// Move moves files to the given destination.
func (f *FilesService) Move(ctx context.Context, parent int64, files ...int64) error {
if parent < 0 {
return errNegativeID
}
if len(files) == 0 {
return fmt.Errorf("no files given")
}
var ids []string
for _, file := range files {
if file < 0 {
return errNegativeID
}
ids = append(ids, itoa(file))
}
params := url.Values{}
params.Set("file_ids", strings.Join(ids, ","))
params.Set("parent_id", itoa(parent))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/move", strings.NewReader(params.Encode()))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
_, err = f.client.Do(req, &struct{}{})
return err
}
// Upload reads from given io.Reader and uploads the file contents to Put.io
// servers under directory given by parent. If parent is negative, user's
// prefered folder is used.
//
// If the uploaded file is a torrent file, Put.io will interpret it as a
// transfer and Transfer field will be present to represent the status of the
// tranfer. Likewise, if the uploaded file is a regular file, Transfer field
// would be nil and the uploaded file will be represented by the File field.
//
// This method reads the file contents into the memory, so it should be used for
// <150MB files.
func (f *FilesService) Upload(ctx context.Context, r io.Reader, filename string, parent int64) (Upload, error) {
if filename == "" {
return Upload{}, fmt.Errorf("filename cannot be empty")
}
var buf bytes.Buffer
mw := multipart.NewWriter(&buf)
// negative parent means use user's prefered download folder.
if parent >= 0 {
err := mw.WriteField("parent_id", itoa(parent))
if err != nil {
return Upload{}, err
}
}
formfile, err := mw.CreateFormFile("file", filename)
if err != nil {
return Upload{}, err
}
_, err = io.Copy(formfile, r)
if err != nil {
return Upload{}, err
}
err = mw.Close()
if err != nil {
return Upload{}, err
}
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/upload", &buf)
if err != nil {
return Upload{}, err
}
req.Header.Set("Content-Type", mw.FormDataContentType())
var response struct {
Upload
}
_, err = f.client.Do(req, &response)
if err != nil {
return Upload{}, err
}
return response.Upload, nil
}
// Search makes a search request with the given query. Servers return 50
// results at a time. The URL for the next 50 results are in Next field. If
// page is -1, all results are returned.
func (f *FilesService) Search(ctx context.Context, query string, page int64) (Search, error) {
if page == 0 || page < -1 {
return Search{}, fmt.Errorf("invalid page number")
}
if query == "" {
return Search{}, fmt.Errorf("no query given")
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/search/"+query+"/page/"+itoa(page), nil)
if err != nil {
return Search{}, err
}
var r Search
_, err = f.client.Do(req, &r)
if err != nil {
return Search{}, err
}
return r, nil
}
// Convert starts a conversion of the given file to MP4 format, which is
// playable in most media players.
func (f *FilesService) Convert(ctx context.Context, id int64) error {
if id < 0 {
return errNegativeID
}
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/"+itoa(id)+"/mp4", nil)
if err != nil {
return err
}
_, err = f.client.Do(req, &struct{}{})
return err
}
// Share shares given files with given friends. Friends are list of usernames.
// If no friends is given, files are shared with all of your friends.
func (f *FilesService) share(ctx context.Context, files []int64, friends ...string) error {
if len(files) == 0 {
return fmt.Errorf("no files given")
}
var ids []string
for _, file := range files {
if file < 0 {
return errNegativeID
}
ids = append(ids, itoa(file))
}
var friendsParam string
if len(friends) == 0 {
friendsParam = "everyone"
} else {
friendsParam = strings.Join(friends, ",")
}
params := url.Values{}
params.Set("file_ids", strings.Join(ids, ","))
params.Set("friends", friendsParam)
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/share", strings.NewReader(params.Encode()))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
_, err = f.client.Do(req, &struct{}{})
return err
}
// Shared returns list of shared files and share information.
func (f *FilesService) shared(ctx context.Context) ([]share, error) {
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/shared", nil)
if err != nil {
return nil, err
}
var r struct {
Shared []share
}
_, err = f.client.Do(req, &r)
if err != nil {
return nil, err
}
return r.Shared, nil
}
// SharedWith returns list of users the given file is shared with.
func (f *FilesService) sharedWith(ctx context.Context, id int64) ([]share, error) {
if id < 0 {
return nil, errNegativeID
}
// FIXME: shared-with returns different json structure than /shared/
// endpoint. so it's not an exported method until a common structure is
// decided
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/"+itoa(id)+"/shared-with", nil)
if err != nil {
return nil, err
}
var r struct {
Shared []share `json:"shared-with"`
}
_, err = f.client.Do(req, &r)
if err != nil {
return nil, err
}
return r.Shared, nil
}
// Subtitles lists available subtitles for the given file for user's prefered
// subtitle language.
func (f *FilesService) Subtitles(ctx context.Context, id int64) ([]Subtitle, error) {
if id < 0 {
return nil, errNegativeID
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/"+itoa(id)+"/subtitles", nil)
if err != nil {
return nil, err
}
var r struct {
Subtitles []Subtitle
Default string
}
_, err = f.client.Do(req, &r)
if err != nil {
return nil, err
}
return r.Subtitles, nil
}
// DownloadSubtitle sends the contents of the subtitle file. If the key is empty string,
// `default` key is used. This key is used to search for a subtitle in the
// following order and returns the first match:
// - A subtitle file that has identical parent folder and name with the video.
// - Subtitle file extracted from video if the format is MKV.
// - First match from OpenSubtitles.org.
func (f *FilesService) DownloadSubtitle(ctx context.Context, id int64, key string, format string) (io.ReadCloser, error) {
if id < 0 {
return nil, errNegativeID
}
if key == "" {
key = "default"
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/"+itoa(id)+"/subtitles/"+key, nil)
if err != nil {
return nil, err
}
resp, err := f.client.Do(req, nil)
if err != nil {
return nil, err
}
return resp.Body, nil
}
// HLSPlaylist serves a HLS playlist for a video file. Use “all” as
// subtitleKey to get available subtitles for user’s preferred languages.
func (f *FilesService) HLSPlaylist(ctx context.Context, id int64, subtitleKey string) (io.ReadCloser, error) {
if id < 0 {
return nil, errNegativeID
}
if subtitleKey == "" {
return nil, fmt.Errorf("empty subtitle key is given")
}
req, err := f.client.NewRequest(ctx, "GET", "/v2/files/"+itoa(id)+"/hls/media.m3u8?subtitle_key"+subtitleKey, nil)
if err != nil {
return nil, err
}
resp, err := f.client.Do(req, nil)
if err != nil {
return nil, err
}
return resp.Body, nil
}
// SetVideoPosition sets default video position for a video file.
func (f *FilesService) SetVideoPosition(ctx context.Context, id int64, t int) error {
if id < 0 {
return errNegativeID
}
if t < 0 {
return fmt.Errorf("time cannot be negative")
}
params := url.Values{}
params.Set("time", strconv.Itoa(t))
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/"+itoa(id)+"/start-from", strings.NewReader(params.Encode()))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
_, err = f.client.Do(req, &struct{}{})
return err
}
// DeleteVideoPosition deletes video position for a video file.
func (f *FilesService) DeleteVideoPosition(ctx context.Context, id int64) error {
if id < 0 {
return errNegativeID
}
req, err := f.client.NewRequest(ctx, "POST", "/v2/files/"+itoa(id)+"/start-from/delete", nil)
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
_, err = f.client.Do(req, &struct{}{})
return err
}
func itoa(i int64) string {
return strconv.FormatInt(i, 10)
}