2605 lines
75 KiB
Go
2605 lines
75 KiB
Go
// Package drive interfaces with the Google Drive object storage system
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package drive
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// FIXME need to deal with some corner cases
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// * multiple files with the same name
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// * files can be in multiple directories
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// * can have directory loops
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// * files with / in name
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"mime"
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"net/http"
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"net/url"
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"os"
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"path"
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"strconv"
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"strings"
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"sync"
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"text/template"
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"time"
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"github.com/ncw/rclone/fs"
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"github.com/ncw/rclone/fs/config"
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"github.com/ncw/rclone/fs/config/configmap"
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"github.com/ncw/rclone/fs/config/configstruct"
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"github.com/ncw/rclone/fs/config/obscure"
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"github.com/ncw/rclone/fs/fserrors"
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"github.com/ncw/rclone/fs/fshttp"
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"github.com/ncw/rclone/fs/hash"
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"github.com/ncw/rclone/fs/walk"
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"github.com/ncw/rclone/lib/dircache"
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"github.com/ncw/rclone/lib/oauthutil"
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"github.com/ncw/rclone/lib/pacer"
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"github.com/pkg/errors"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/google"
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drive_v2 "google.golang.org/api/drive/v2"
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drive "google.golang.org/api/drive/v3"
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"google.golang.org/api/googleapi"
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)
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// Constants
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const (
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rcloneClientID = "202264815644.apps.googleusercontent.com"
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rcloneEncryptedClientSecret = "eX8GpZTVx3vxMWVkuuBdDWmAUE6rGhTwVrvG9GhllYccSdj2-mvHVg"
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driveFolderType = "application/vnd.google-apps.folder"
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timeFormatIn = time.RFC3339
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timeFormatOut = "2006-01-02T15:04:05.000000000Z07:00"
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minSleep = 10 * time.Millisecond
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defaultExportExtensions = "docx,xlsx,pptx,svg"
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scopePrefix = "https://www.googleapis.com/auth/"
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defaultScope = "drive"
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// chunkSize is the size of the chunks created during a resumable upload and should be a power of two.
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// 1<<18 is the minimum size supported by the Google uploader, and there is no maximum.
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defaultChunkSize = fs.SizeSuffix(8 * 1024 * 1024)
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)
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// Globals
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var (
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// Description of how to auth for this app
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driveConfig = &oauth2.Config{
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Scopes: []string{scopePrefix + "drive"},
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Endpoint: google.Endpoint,
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ClientID: rcloneClientID,
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ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
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RedirectURL: oauthutil.TitleBarRedirectURL,
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}
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_mimeTypeToExtensionDuplicates = map[string]string{
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"application/x-vnd.oasis.opendocument.presentation": ".odp",
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"application/x-vnd.oasis.opendocument.spreadsheet": ".ods",
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"application/x-vnd.oasis.opendocument.text": ".odt",
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"image/jpg": ".jpg",
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"image/x-bmp": ".bmp",
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"image/x-png": ".png",
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"text/rtf": ".rtf",
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}
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_mimeTypeToExtension = map[string]string{
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"application/epub+zip": ".epub",
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"application/json": ".json",
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"application/msword": ".doc",
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"application/pdf": ".pdf",
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"application/rtf": ".rtf",
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"application/vnd.ms-excel": ".xls",
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"application/vnd.oasis.opendocument.presentation": ".odp",
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"application/vnd.oasis.opendocument.spreadsheet": ".ods",
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"application/vnd.oasis.opendocument.text": ".odt",
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"application/vnd.openxmlformats-officedocument.presentationml.presentation": ".pptx",
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"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": ".xlsx",
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"application/vnd.openxmlformats-officedocument.wordprocessingml.document": ".docx",
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"application/x-msmetafile": ".wmf",
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"application/zip": ".zip",
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"image/bmp": ".bmp",
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"image/jpeg": ".jpg",
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"image/pjpeg": ".pjpeg",
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"image/png": ".png",
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"image/svg+xml": ".svg",
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"text/csv": ".csv",
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"text/html": ".html",
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"text/plain": ".txt",
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"text/tab-separated-values": ".tsv",
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}
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_mimeTypeToExtensionLinks = map[string]string{
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"application/x-link-desktop": ".desktop",
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"application/x-link-html": ".link.html",
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"application/x-link-url": ".url",
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"application/x-link-webloc": ".webloc",
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}
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partialFields = "id,name,size,md5Checksum,trashed,modifiedTime,createdTime,mimeType,parents,webViewLink"
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fetchFormatsOnce sync.Once // make sure we fetch the export/import formats only once
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_exportFormats map[string][]string // allowed export MIME type conversions
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_importFormats map[string][]string // allowed import MIME type conversions
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templatesOnce sync.Once // parse link templates only once
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_linkTemplates map[string]*template.Template // available link types
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)
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// Register with Fs
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func init() {
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fs.Register(&fs.RegInfo{
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Name: "drive",
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Description: "Google Drive",
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NewFs: NewFs,
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Config: func(name string, m configmap.Mapper) {
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// Parse config into Options struct
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opt := new(Options)
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err := configstruct.Set(m, opt)
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if err != nil {
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fs.Errorf(nil, "Couldn't parse config into struct: %v", err)
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return
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}
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// Fill in the scopes
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if opt.Scope == "" {
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opt.Scope = defaultScope
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}
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driveConfig.Scopes = nil
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for _, scope := range strings.Split(opt.Scope, ",") {
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driveConfig.Scopes = append(driveConfig.Scopes, scopePrefix+strings.TrimSpace(scope))
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// Set the root_folder_id if using drive.appfolder
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if scope == "drive.appfolder" {
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m.Set("root_folder_id", "appDataFolder")
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}
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}
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if opt.ServiceAccountFile == "" {
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err = oauthutil.Config("drive", name, m, driveConfig)
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if err != nil {
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log.Fatalf("Failed to configure token: %v", err)
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}
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}
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err = configTeamDrive(opt, m, name)
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if err != nil {
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log.Fatalf("Failed to configure team drive: %v", err)
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}
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},
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Options: []fs.Option{{
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Name: config.ConfigClientID,
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Help: "Google Application Client Id\nLeave blank normally.",
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}, {
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Name: config.ConfigClientSecret,
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Help: "Google Application Client Secret\nLeave blank normally.",
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}, {
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Name: "scope",
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Help: "Scope that rclone should use when requesting access from drive.",
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Examples: []fs.OptionExample{{
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Value: "drive",
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Help: "Full access all files, excluding Application Data Folder.",
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}, {
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Value: "drive.readonly",
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Help: "Read-only access to file metadata and file contents.",
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}, {
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Value: "drive.file",
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Help: "Access to files created by rclone only.\nThese are visible in the drive website.\nFile authorization is revoked when the user deauthorizes the app.",
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}, {
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Value: "drive.appfolder",
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Help: "Allows read and write access to the Application Data folder.\nThis is not visible in the drive website.",
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}, {
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Value: "drive.metadata.readonly",
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Help: "Allows read-only access to file metadata but\ndoes not allow any access to read or download file content.",
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}},
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}, {
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Name: "root_folder_id",
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Help: "ID of the root folder\nLeave blank normally.\nFill in to access \"Computers\" folders. (see docs).",
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}, {
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Name: "service_account_file",
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Help: "Service Account Credentials JSON file path \nLeave blank normally.\nNeeded only if you want use SA instead of interactive login.",
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}, {
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Name: "service_account_credentials",
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Help: "Service Account Credentials JSON blob\nLeave blank normally.\nNeeded only if you want use SA instead of interactive login.",
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Hide: fs.OptionHideBoth,
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Advanced: true,
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}, {
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Name: "team_drive",
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Help: "ID of the Team Drive",
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Hide: fs.OptionHideBoth,
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Advanced: true,
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}, {
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Name: "auth_owner_only",
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Default: false,
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Help: "Only consider files owned by the authenticated user.",
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Advanced: true,
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}, {
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Name: "use_trash",
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Default: true,
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Help: "Send files to the trash instead of deleting permanently.",
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Advanced: true,
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}, {
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Name: "skip_gdocs",
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Default: false,
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Help: "Skip google documents in all listings.",
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Advanced: true,
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}, {
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Name: "shared_with_me",
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Default: false,
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Help: "Only show files that are shared with me",
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Advanced: true,
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}, {
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Name: "trashed_only",
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Default: false,
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Help: "Only show files that are in the trash",
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Advanced: true,
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}, {
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Name: "formats",
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Default: "",
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Help: "Deprecated: see export_formats",
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Advanced: true,
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Hide: fs.OptionHideConfigurator,
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}, {
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Name: "export_formats",
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Default: defaultExportExtensions,
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Help: "Comma separated list of preferred formats for downloading Google docs.",
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Advanced: true,
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}, {
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Name: "import_formats",
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Default: "",
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Help: "Comma separated list of preferred formats for uploading Google docs.",
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Advanced: true,
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}, {
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Name: "allow_import_name_change",
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Default: false,
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Help: "Allow the filetype to change when uploading Google docs (e.g. file.doc to file.docx). This will confuse sync and reupload every time.",
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Advanced: true,
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}, {
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Name: "use_created_date",
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Default: false,
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Help: "Use created date instead of modified date.",
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Advanced: true,
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}, {
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Name: "list_chunk",
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Default: 1000,
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Help: "Size of listing chunk 100-1000. 0 to disable.",
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Advanced: true,
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}, {
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Name: "impersonate",
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Default: "",
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Help: "Impersonate this user when using a service account.",
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Advanced: true,
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}, {
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Name: "alternate_export",
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Default: false,
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Help: "Use alternate export URLs for google documents export.",
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Advanced: true,
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}, {
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Name: "upload_cutoff",
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Default: defaultChunkSize,
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Help: "Cutoff for switching to chunked upload",
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Advanced: true,
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}, {
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Name: "chunk_size",
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Default: defaultChunkSize,
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Help: "Upload chunk size. Must a power of 2 >= 256k.",
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Advanced: true,
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}, {
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Name: "acknowledge_abuse",
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Default: false,
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Help: "Set to allow files which return cannotDownloadAbusiveFile to be downloaded.",
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Advanced: true,
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}, {
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Name: "keep_revision_forever",
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Default: false,
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Help: "Keep new head revision forever.",
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Advanced: true,
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}, {
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Name: "v2_download_min_size",
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Default: fs.SizeSuffix(-1),
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Help: "If Object's are greater, use drive v2 API to download.",
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Advanced: true,
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}},
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})
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// register duplicate MIME types first
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// this allows them to be used with mime.ExtensionsByType() but
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// mime.TypeByExtension() will return the later registered MIME type
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for _, m := range []map[string]string{
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_mimeTypeToExtensionDuplicates, _mimeTypeToExtension, _mimeTypeToExtensionLinks,
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} {
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for mimeType, extension := range m {
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if err := mime.AddExtensionType(extension, mimeType); err != nil {
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log.Fatalf("Failed to register MIME type %q: %v", mimeType, err)
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}
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}
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}
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}
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// Options defines the configuration for this backend
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type Options struct {
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Scope string `config:"scope"`
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RootFolderID string `config:"root_folder_id"`
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ServiceAccountFile string `config:"service_account_file"`
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ServiceAccountCredentials string `config:"service_account_credentials"`
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TeamDriveID string `config:"team_drive"`
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AuthOwnerOnly bool `config:"auth_owner_only"`
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UseTrash bool `config:"use_trash"`
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SkipGdocs bool `config:"skip_gdocs"`
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SharedWithMe bool `config:"shared_with_me"`
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TrashedOnly bool `config:"trashed_only"`
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Extensions string `config:"formats"`
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ExportExtensions string `config:"export_formats"`
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ImportExtensions string `config:"import_formats"`
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AllowImportNameChange bool `config:"allow_import_name_change"`
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UseCreatedDate bool `config:"use_created_date"`
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ListChunk int64 `config:"list_chunk"`
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Impersonate string `config:"impersonate"`
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AlternateExport bool `config:"alternate_export"`
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UploadCutoff fs.SizeSuffix `config:"upload_cutoff"`
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ChunkSize fs.SizeSuffix `config:"chunk_size"`
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AcknowledgeAbuse bool `config:"acknowledge_abuse"`
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KeepRevisionForever bool `config:"keep_revision_forever"`
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V2DownloadMinSize fs.SizeSuffix `config:"v2_download_min_size"`
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}
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// Fs represents a remote drive server
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type Fs struct {
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name string // name of this remote
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root string // the path we are working on
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opt Options // parsed options
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features *fs.Features // optional features
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svc *drive.Service // the connection to the drive server
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v2Svc *drive_v2.Service // used to create download links for the v2 api
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client *http.Client // authorized client
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rootFolderID string // the id of the root folder
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dirCache *dircache.DirCache // Map of directory path to directory id
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pacer *pacer.Pacer // To pace the API calls
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exportExtensions []string // preferred extensions to download docs
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importMimeTypes []string // MIME types to convert to docs
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isTeamDrive bool // true if this is a team drive
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}
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type baseObject struct {
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fs *Fs // what this object is part of
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remote string // The remote path
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id string // Drive Id of this object
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modifiedDate string // RFC3339 time it was last modified
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mimeType string // The object MIME type
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bytes int64 // size of the object
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}
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type documentObject struct {
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baseObject
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url string // Download URL of this object
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documentMimeType string // the original document MIME type
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extLen int // The length of the added export extension
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}
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type linkObject struct {
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baseObject
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content []byte // The file content generated by a link template
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extLen int // The length of the added export extension
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}
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// Object describes a drive object
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type Object struct {
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baseObject
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url string // Download URL of this object
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md5sum string // md5sum of the object
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v2Download bool // generate v2 download link ondemand
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}
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// ------------------------------------------------------------
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// Name of the remote (as passed into NewFs)
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func (f *Fs) Name() string {
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return f.name
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}
|
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|
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// Root of the remote (as passed into NewFs)
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func (f *Fs) Root() string {
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return f.root
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}
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// String converts this Fs to a string
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func (f *Fs) String() string {
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return fmt.Sprintf("Google drive root '%s'", f.root)
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}
|
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|
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// Features returns the optional features of this Fs
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func (f *Fs) Features() *fs.Features {
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return f.features
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}
|
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|
|
// shouldRetry determines whehter a given err rates being retried
|
|
func shouldRetry(err error) (again bool, errOut error) {
|
|
again = false
|
|
if err != nil {
|
|
if fserrors.ShouldRetry(err) {
|
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again = true
|
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} else {
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switch gerr := err.(type) {
|
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case *googleapi.Error:
|
|
if gerr.Code >= 500 && gerr.Code < 600 {
|
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// All 5xx errors should be retried
|
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again = true
|
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} else if len(gerr.Errors) > 0 {
|
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reason := gerr.Errors[0].Reason
|
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if reason == "rateLimitExceeded" || reason == "userRateLimitExceeded" {
|
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again = true
|
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}
|
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}
|
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}
|
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}
|
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}
|
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return again, err
|
|
}
|
|
|
|
// parseParse parses a drive 'url'
|
|
func parseDrivePath(path string) (root string, err error) {
|
|
root = strings.Trim(path, "/")
|
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return
|
|
}
|
|
|
|
// User function to process a File item from list
|
|
//
|
|
// Should return true to finish processing
|
|
type listFn func(*drive.File) bool
|
|
|
|
func containsString(slice []string, s string) bool {
|
|
for _, e := range slice {
|
|
if e == s {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// Lists the directory required calling the user function on each item found
|
|
//
|
|
// If the user fn ever returns true then it early exits with found = true
|
|
//
|
|
// Search params: https://developers.google.com/drive/search-parameters
|
|
func (f *Fs) list(dirIDs []string, title string, directoriesOnly bool, filesOnly bool, includeAll bool, fn listFn) (found bool, err error) {
|
|
var query []string
|
|
if !includeAll {
|
|
q := "trashed=" + strconv.FormatBool(f.opt.TrashedOnly)
|
|
if f.opt.TrashedOnly {
|
|
q = fmt.Sprintf("(mimeType='%s' or %s)", driveFolderType, q)
|
|
}
|
|
query = append(query, q)
|
|
}
|
|
// Search with sharedWithMe will always return things listed in "Shared With Me" (without any parents)
|
|
// We must not filter with parent when we try list "ROOT" with drive-shared-with-me
|
|
// If we need to list file inside those shared folders, we must search it without sharedWithMe
|
|
parentsQuery := bytes.NewBufferString("(")
|
|
for _, dirID := range dirIDs {
|
|
if dirID == "" {
|
|
continue
|
|
}
|
|
if parentsQuery.Len() > 1 {
|
|
_, _ = parentsQuery.WriteString(" or ")
|
|
}
|
|
if f.opt.SharedWithMe && dirID == f.rootFolderID {
|
|
_, _ = parentsQuery.WriteString("sharedWithMe=true")
|
|
} else {
|
|
_, _ = fmt.Fprintf(parentsQuery, "'%s' in parents", dirID)
|
|
}
|
|
}
|
|
if parentsQuery.Len() > 1 {
|
|
_ = parentsQuery.WriteByte(')')
|
|
query = append(query, parentsQuery.String())
|
|
}
|
|
var stems []string
|
|
if title != "" {
|
|
// Escaping the backslash isn't documented but seems to work
|
|
searchTitle := strings.Replace(title, `\`, `\\`, -1)
|
|
searchTitle = strings.Replace(searchTitle, `'`, `\'`, -1)
|
|
// Convert ／ to / for search
|
|
searchTitle = strings.Replace(searchTitle, "／", "/", -1)
|
|
|
|
var titleQuery bytes.Buffer
|
|
_, _ = fmt.Fprintf(&titleQuery, "(name='%s'", searchTitle)
|
|
if !directoriesOnly && !f.opt.SkipGdocs {
|
|
// If the search title has an extension that is in the export extensions add a search
|
|
// for the filename without the extension.
|
|
// Assume that export extensions don't contain escape sequences.
|
|
for _, ext := range f.exportExtensions {
|
|
if strings.HasSuffix(searchTitle, ext) {
|
|
stems = append(stems, title[:len(title)-len(ext)])
|
|
_, _ = fmt.Fprintf(&titleQuery, " or name='%s'", searchTitle[:len(searchTitle)-len(ext)])
|
|
}
|
|
}
|
|
}
|
|
_ = titleQuery.WriteByte(')')
|
|
query = append(query, titleQuery.String())
|
|
}
|
|
if directoriesOnly {
|
|
query = append(query, fmt.Sprintf("mimeType='%s'", driveFolderType))
|
|
}
|
|
if filesOnly {
|
|
query = append(query, fmt.Sprintf("mimeType!='%s'", driveFolderType))
|
|
}
|
|
list := f.svc.Files.List()
|
|
if len(query) > 0 {
|
|
list.Q(strings.Join(query, " and "))
|
|
// fmt.Printf("list Query = %q\n", query)
|
|
}
|
|
if f.opt.ListChunk > 0 {
|
|
list.PageSize(f.opt.ListChunk)
|
|
}
|
|
if f.isTeamDrive {
|
|
list.TeamDriveId(f.opt.TeamDriveID)
|
|
list.SupportsTeamDrives(true)
|
|
list.IncludeTeamDriveItems(true)
|
|
list.Corpora("teamDrive")
|
|
}
|
|
// If using appDataFolder then need to add Spaces
|
|
if f.rootFolderID == "appDataFolder" {
|
|
list.Spaces("appDataFolder")
|
|
}
|
|
|
|
var fields = partialFields
|
|
|
|
if f.opt.AuthOwnerOnly {
|
|
fields += ",owners"
|
|
}
|
|
|
|
fields = fmt.Sprintf("files(%s),nextPageToken", fields)
|
|
|
|
OUTER:
|
|
for {
|
|
var files *drive.FileList
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
files, err = list.Fields(googleapi.Field(fields)).Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return false, errors.Wrap(err, "couldn't list directory")
|
|
}
|
|
for _, item := range files.Files {
|
|
// Convert / to ／ for listing purposes
|
|
item.Name = strings.Replace(item.Name, "/", "／", -1)
|
|
// Check the case of items is correct since
|
|
// the `=` operator is case insensitive.
|
|
|
|
if title != "" && title != item.Name {
|
|
found := false
|
|
for _, stem := range stems {
|
|
if stem == item.Name {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
continue
|
|
}
|
|
_, exportName, _, _ := f.findExportFormat(item)
|
|
if exportName == "" || exportName != title {
|
|
continue
|
|
}
|
|
}
|
|
if fn(item) {
|
|
found = true
|
|
break OUTER
|
|
}
|
|
}
|
|
if files.NextPageToken == "" {
|
|
break
|
|
}
|
|
list.PageToken(files.NextPageToken)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Returns true of x is a power of 2 or zero
|
|
func isPowerOfTwo(x int64) bool {
|
|
switch {
|
|
case x == 0:
|
|
return true
|
|
case x < 0:
|
|
return false
|
|
default:
|
|
return (x & (x - 1)) == 0
|
|
}
|
|
}
|
|
|
|
// add a charset parameter to all text/* MIME types
|
|
func fixMimeType(mimeType string) string {
|
|
mediaType, param, err := mime.ParseMediaType(mimeType)
|
|
if err != nil {
|
|
return mimeType
|
|
}
|
|
if strings.HasPrefix(mimeType, "text/") && param["charset"] == "" {
|
|
param["charset"] = "utf-8"
|
|
mimeType = mime.FormatMediaType(mediaType, param)
|
|
}
|
|
return mimeType
|
|
}
|
|
func fixMimeTypeMap(m map[string][]string) map[string][]string {
|
|
for _, v := range m {
|
|
for i, mt := range v {
|
|
fixed := fixMimeType(mt)
|
|
if fixed == "" {
|
|
panic(errors.Errorf("unable to fix MIME type %q", mt))
|
|
}
|
|
v[i] = fixed
|
|
}
|
|
}
|
|
return m
|
|
}
|
|
func isInternalMimeType(mimeType string) bool {
|
|
return strings.HasPrefix(mimeType, "application/vnd.google-apps.")
|
|
}
|
|
func isLinkMimeType(mimeType string) bool {
|
|
return strings.HasPrefix(mimeType, "application/x-link-")
|
|
}
|
|
|
|
// parseExtensions parses a list of comma separated extensions
|
|
// into a list of unique extensions with leading "." and a list of associated MIME types
|
|
func parseExtensions(extensionsIn ...string) (extensions, mimeTypes []string, err error) {
|
|
for _, extensionText := range extensionsIn {
|
|
for _, extension := range strings.Split(extensionText, ",") {
|
|
extension = strings.ToLower(strings.TrimSpace(extension))
|
|
if extension == "" {
|
|
continue
|
|
}
|
|
if len(extension) > 0 && extension[0] != '.' {
|
|
extension = "." + extension
|
|
}
|
|
mt := mime.TypeByExtension(extension)
|
|
if mt == "" {
|
|
return extensions, mimeTypes, errors.Errorf("couldn't find MIME type for extension %q", extension)
|
|
}
|
|
found := false
|
|
for _, existingExtension := range extensions {
|
|
if extension == existingExtension {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
extensions = append(extensions, extension)
|
|
mimeTypes = append(mimeTypes, mt)
|
|
}
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
// Figure out if the user wants to use a team drive
|
|
func configTeamDrive(opt *Options, m configmap.Mapper, name string) error {
|
|
if opt.TeamDriveID == "" {
|
|
fmt.Printf("Configure this as a team drive?\n")
|
|
} else {
|
|
fmt.Printf("Change current team drive ID %q?\n", opt.TeamDriveID)
|
|
}
|
|
if !config.ConfirmWithDefault(false) {
|
|
return nil
|
|
}
|
|
client, err := createOAuthClient(opt, name, m)
|
|
if err != nil {
|
|
return errors.Wrap(err, "config team drive failed to create oauth client")
|
|
}
|
|
svc, err := drive.New(client)
|
|
if err != nil {
|
|
return errors.Wrap(err, "config team drive failed to make drive client")
|
|
}
|
|
fmt.Printf("Fetching team drive list...\n")
|
|
var driveIDs, driveNames []string
|
|
listTeamDrives := svc.Teamdrives.List().PageSize(100)
|
|
for {
|
|
var teamDrives *drive.TeamDriveList
|
|
err = newPacer().Call(func() (bool, error) {
|
|
teamDrives, err = listTeamDrives.Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return errors.Wrap(err, "list team drives failed")
|
|
}
|
|
for _, drive := range teamDrives.TeamDrives {
|
|
driveIDs = append(driveIDs, drive.Id)
|
|
driveNames = append(driveNames, drive.Name)
|
|
}
|
|
if teamDrives.NextPageToken == "" {
|
|
break
|
|
}
|
|
listTeamDrives.PageToken(teamDrives.NextPageToken)
|
|
}
|
|
var driveID string
|
|
if len(driveIDs) == 0 {
|
|
fmt.Printf("No team drives found in your account")
|
|
} else {
|
|
driveID = config.Choose("Enter a Team Drive ID", driveIDs, driveNames, true)
|
|
}
|
|
m.Set("team_drive", driveID)
|
|
opt.TeamDriveID = driveID
|
|
return nil
|
|
}
|
|
|
|
// newPacer makes a pacer configured for drive
|
|
func newPacer() *pacer.Pacer {
|
|
return pacer.New().SetMinSleep(minSleep).SetPacer(pacer.GoogleDrivePacer)
|
|
}
|
|
|
|
func getServiceAccountClient(opt *Options, credentialsData []byte) (*http.Client, error) {
|
|
conf, err := google.JWTConfigFromJSON(credentialsData, driveConfig.Scopes...)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "error processing credentials")
|
|
}
|
|
if opt.Impersonate != "" {
|
|
conf.Subject = opt.Impersonate
|
|
}
|
|
ctxWithSpecialClient := oauthutil.Context(fshttp.NewClient(fs.Config))
|
|
return oauth2.NewClient(ctxWithSpecialClient, conf.TokenSource(ctxWithSpecialClient)), nil
|
|
}
|
|
|
|
func createOAuthClient(opt *Options, name string, m configmap.Mapper) (*http.Client, error) {
|
|
var oAuthClient *http.Client
|
|
var err error
|
|
|
|
// try loading service account credentials from env variable, then from a file
|
|
if len(opt.ServiceAccountCredentials) == 0 && opt.ServiceAccountFile != "" {
|
|
loadedCreds, err := ioutil.ReadFile(os.ExpandEnv(opt.ServiceAccountFile))
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "error opening service account credentials file")
|
|
}
|
|
opt.ServiceAccountCredentials = string(loadedCreds)
|
|
}
|
|
if opt.ServiceAccountCredentials != "" {
|
|
oAuthClient, err = getServiceAccountClient(opt, []byte(opt.ServiceAccountCredentials))
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to create oauth client from service account")
|
|
}
|
|
} else {
|
|
oAuthClient, _, err = oauthutil.NewClient(name, m, driveConfig)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to create oauth client")
|
|
}
|
|
}
|
|
|
|
return oAuthClient, nil
|
|
}
|
|
|
|
// NewFs contstructs an Fs from the path, container:path
|
|
func NewFs(name, path string, m configmap.Mapper) (fs.Fs, error) {
|
|
// Parse config into Options struct
|
|
opt := new(Options)
|
|
err := configstruct.Set(m, opt)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if !isPowerOfTwo(int64(opt.ChunkSize)) {
|
|
return nil, errors.Errorf("drive: chunk size %v isn't a power of two", opt.ChunkSize)
|
|
}
|
|
if opt.ChunkSize < 256*1024 {
|
|
return nil, errors.Errorf("drive: chunk size can't be less than 256k - was %v", opt.ChunkSize)
|
|
}
|
|
|
|
oAuthClient, err := createOAuthClient(opt, name, m)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "drive: failed when making oauth client")
|
|
}
|
|
|
|
root, err := parseDrivePath(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
f := &Fs{
|
|
name: name,
|
|
root: root,
|
|
opt: *opt,
|
|
pacer: newPacer(),
|
|
}
|
|
f.isTeamDrive = opt.TeamDriveID != ""
|
|
f.features = (&fs.Features{
|
|
DuplicateFiles: true,
|
|
ReadMimeType: true,
|
|
WriteMimeType: true,
|
|
CanHaveEmptyDirectories: true,
|
|
}).Fill(f)
|
|
|
|
// Create a new authorized Drive client.
|
|
f.client = oAuthClient
|
|
f.svc, err = drive.New(f.client)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "couldn't create Drive client")
|
|
}
|
|
|
|
if f.opt.V2DownloadMinSize >= 0 {
|
|
f.v2Svc, err = drive_v2.New(f.client)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "couldn't create Drive v2 client")
|
|
}
|
|
}
|
|
|
|
// set root folder for a team drive or query the user root folder
|
|
if f.isTeamDrive {
|
|
f.rootFolderID = f.opt.TeamDriveID
|
|
} else {
|
|
f.rootFolderID = "root"
|
|
}
|
|
|
|
// override root folder if set in the config
|
|
if opt.RootFolderID != "" {
|
|
f.rootFolderID = opt.RootFolderID
|
|
}
|
|
|
|
f.dirCache = dircache.New(root, f.rootFolderID, f)
|
|
|
|
// Parse extensions
|
|
if opt.Extensions != "" {
|
|
if opt.ExportExtensions != defaultExportExtensions {
|
|
return nil, errors.New("only one of 'formats' and 'export_formats' can be specified")
|
|
}
|
|
opt.Extensions, opt.ExportExtensions = "", opt.Extensions
|
|
}
|
|
f.exportExtensions, _, err = parseExtensions(opt.ExportExtensions, defaultExportExtensions)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
_, f.importMimeTypes, err = parseExtensions(opt.ImportExtensions)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Find the current root
|
|
err = f.dirCache.FindRoot(false)
|
|
if err != nil {
|
|
// Assume it is a file
|
|
newRoot, remote := dircache.SplitPath(root)
|
|
tempF := *f
|
|
tempF.dirCache = dircache.New(newRoot, f.rootFolderID, &tempF)
|
|
tempF.root = newRoot
|
|
// Make new Fs which is the parent
|
|
err = tempF.dirCache.FindRoot(false)
|
|
if err != nil {
|
|
// No root so return old f
|
|
return f, nil
|
|
}
|
|
_, err := tempF.NewObject(remote)
|
|
if err != nil {
|
|
// unable to list folder so return old f
|
|
return f, 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/ncw/rclone/issues/2182
|
|
f.dirCache = tempF.dirCache
|
|
f.root = tempF.root
|
|
return f, fs.ErrorIsFile
|
|
}
|
|
// fmt.Printf("Root id %s", f.dirCache.RootID())
|
|
return f, nil
|
|
}
|
|
|
|
func (f *Fs) newBaseObject(remote string, info *drive.File) baseObject {
|
|
modifiedDate := info.ModifiedTime
|
|
if f.opt.UseCreatedDate {
|
|
modifiedDate = info.CreatedTime
|
|
}
|
|
return baseObject{
|
|
fs: f,
|
|
remote: remote,
|
|
id: info.Id,
|
|
modifiedDate: modifiedDate,
|
|
mimeType: info.MimeType,
|
|
bytes: info.Size,
|
|
}
|
|
}
|
|
|
|
// newRegularObject creates a fs.Object for a normal drive.File
|
|
func (f *Fs) newRegularObject(remote string, info *drive.File) fs.Object {
|
|
return &Object{
|
|
baseObject: f.newBaseObject(remote, info),
|
|
url: fmt.Sprintf("%sfiles/%s?alt=media", f.svc.BasePath, info.Id),
|
|
md5sum: strings.ToLower(info.Md5Checksum),
|
|
v2Download: f.opt.V2DownloadMinSize != -1 && info.Size >= int64(f.opt.V2DownloadMinSize),
|
|
}
|
|
}
|
|
|
|
// newDocumentObject creates a fs.Object for a google docs drive.File
|
|
func (f *Fs) newDocumentObject(remote string, info *drive.File, extension, exportMimeType string) (fs.Object, error) {
|
|
mediaType, _, err := mime.ParseMediaType(exportMimeType)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
url := fmt.Sprintf("%sfiles/%s/export?mimeType=%s", f.svc.BasePath, info.Id, url.QueryEscape(mediaType))
|
|
if f.opt.AlternateExport {
|
|
switch info.MimeType {
|
|
case "application/vnd.google-apps.drawing":
|
|
url = fmt.Sprintf("https://docs.google.com/drawings/d/%s/export/%s", info.Id, extension[1:])
|
|
case "application/vnd.google-apps.document":
|
|
url = fmt.Sprintf("https://docs.google.com/document/d/%s/export?format=%s", info.Id, extension[1:])
|
|
case "application/vnd.google-apps.spreadsheet":
|
|
url = fmt.Sprintf("https://docs.google.com/spreadsheets/d/%s/export?format=%s", info.Id, extension[1:])
|
|
case "application/vnd.google-apps.presentation":
|
|
url = fmt.Sprintf("https://docs.google.com/presentation/d/%s/export/%s", info.Id, extension[1:])
|
|
}
|
|
}
|
|
baseObject := f.newBaseObject(remote+extension, info)
|
|
baseObject.bytes = -1
|
|
baseObject.mimeType = exportMimeType
|
|
return &documentObject{
|
|
baseObject: baseObject,
|
|
url: url,
|
|
documentMimeType: info.MimeType,
|
|
extLen: len(extension),
|
|
}, nil
|
|
}
|
|
|
|
// newLinkObject creates a fs.Object that represents a link a google docs drive.File
|
|
func (f *Fs) newLinkObject(remote string, info *drive.File, extension, exportMimeType string) (fs.Object, error) {
|
|
t := linkTemplate(exportMimeType)
|
|
if t == nil {
|
|
return nil, errors.Errorf("unsupported link type %s", exportMimeType)
|
|
}
|
|
var buf bytes.Buffer
|
|
err := t.Execute(&buf, struct {
|
|
URL, Title string
|
|
}{
|
|
info.WebViewLink, info.Name,
|
|
})
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "executing template failed")
|
|
}
|
|
|
|
baseObject := f.newBaseObject(remote+extension, info)
|
|
baseObject.bytes = int64(buf.Len())
|
|
baseObject.mimeType = exportMimeType
|
|
return &linkObject{
|
|
baseObject: baseObject,
|
|
content: buf.Bytes(),
|
|
extLen: len(extension),
|
|
}, nil
|
|
}
|
|
|
|
// newObjectWithInfo creates a fs.Object for any drive.File
|
|
//
|
|
// When the drive.File cannot be represented as a fs.Object it will return (nil, nil).
|
|
func (f *Fs) newObjectWithInfo(remote string, info *drive.File) (fs.Object, error) {
|
|
// If item has MD5 sum or a length it is a file stored on drive
|
|
if info.Md5Checksum != "" || info.Size > 0 {
|
|
return f.newRegularObject(remote, info), nil
|
|
}
|
|
|
|
extension, exportName, exportMimeType, isDocument := f.findExportFormat(info)
|
|
return f.newObjectWithExportInfo(remote, info, extension, exportName, exportMimeType, isDocument)
|
|
}
|
|
|
|
// newObjectWithExportInfo creates a fs.Object for any drive.File and the result of findExportFormat
|
|
//
|
|
// When the drive.File cannot be represented as a fs.Object it will return (nil, nil).
|
|
func (f *Fs) newObjectWithExportInfo(
|
|
remote string, info *drive.File,
|
|
extension, exportName, exportMimeType string, isDocument bool) (fs.Object, error) {
|
|
switch {
|
|
case info.Md5Checksum != "" || info.Size > 0:
|
|
// If item has MD5 sum or a length it is a file stored on drive
|
|
return f.newRegularObject(remote, info), nil
|
|
case f.opt.SkipGdocs:
|
|
fs.Debugf(remote, "Skipping google document type %q", info.MimeType)
|
|
return nil, nil
|
|
default:
|
|
// If item MimeType is in the ExportFormats then it is a google doc
|
|
if !isDocument {
|
|
fs.Debugf(remote, "Ignoring unknown document type %q", info.MimeType)
|
|
return nil, nil
|
|
}
|
|
if extension == "" {
|
|
fs.Debugf(remote, "No export formats found for %q", info.MimeType)
|
|
return nil, nil
|
|
}
|
|
if isLinkMimeType(exportMimeType) {
|
|
return f.newLinkObject(remote, info, extension, exportMimeType)
|
|
}
|
|
return f.newDocumentObject(remote, info, extension, exportMimeType)
|
|
}
|
|
}
|
|
|
|
// NewObject finds the Object at remote. If it can't be found
|
|
// it returns the error fs.ErrorObjectNotFound.
|
|
func (f *Fs) NewObject(remote string) (fs.Object, error) {
|
|
info, extension, exportName, exportMimeType, isDocument, err := f.getRemoteInfoWithExport(remote)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
remote = remote[:len(remote)-len(extension)]
|
|
obj, err := f.newObjectWithExportInfo(remote, info, extension, exportName, exportMimeType, isDocument)
|
|
switch {
|
|
case err != nil:
|
|
return nil, err
|
|
case obj == nil:
|
|
return nil, fs.ErrorObjectNotFound
|
|
default:
|
|
return obj, nil
|
|
}
|
|
}
|
|
|
|
// FindLeaf finds a directory of name leaf in the folder with ID pathID
|
|
func (f *Fs) FindLeaf(pathID, leaf string) (pathIDOut string, found bool, err error) {
|
|
// Find the leaf in pathID
|
|
found, err = f.list([]string{pathID}, leaf, true, false, false, func(item *drive.File) bool {
|
|
if !f.opt.SkipGdocs {
|
|
_, exportName, _, isDocument := f.findExportFormat(item)
|
|
if exportName == leaf {
|
|
pathIDOut = item.Id
|
|
return true
|
|
}
|
|
if isDocument {
|
|
return false
|
|
}
|
|
}
|
|
if item.Name == leaf {
|
|
pathIDOut = item.Id
|
|
return true
|
|
}
|
|
return false
|
|
})
|
|
return pathIDOut, found, err
|
|
}
|
|
|
|
// CreateDir makes a directory with pathID as parent and name leaf
|
|
func (f *Fs) CreateDir(pathID, leaf string) (newID string, err error) {
|
|
// fmt.Println("Making", path)
|
|
// Define the metadata for the directory we are going to create.
|
|
createInfo := &drive.File{
|
|
Name: leaf,
|
|
Description: leaf,
|
|
MimeType: driveFolderType,
|
|
Parents: []string{pathID},
|
|
}
|
|
var info *drive.File
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
info, err = f.svc.Files.Create(createInfo).
|
|
Fields(googleapi.Field(partialFields)).
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return info.Id, nil
|
|
}
|
|
|
|
// isAuthOwned checks if any of the item owners is the authenticated owner
|
|
func isAuthOwned(item *drive.File) bool {
|
|
for _, owner := range item.Owners {
|
|
if owner.Me {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// linkTemplate returns the Template for a MIME type or nil if the
|
|
// MIME type does not represent a link
|
|
func linkTemplate(mt string) *template.Template {
|
|
templatesOnce.Do(func() {
|
|
_linkTemplates = map[string]*template.Template{
|
|
"application/x-link-desktop": template.Must(
|
|
template.New("application/x-link-desktop").Parse(desktopTemplate)),
|
|
"application/x-link-html": template.Must(
|
|
template.New("application/x-link-html").Parse(htmlTemplate)),
|
|
"application/x-link-url": template.Must(
|
|
template.New("application/x-link-url").Parse(urlTemplate)),
|
|
"application/x-link-webloc": template.Must(
|
|
template.New("application/x-link-webloc").Parse(weblocTemplate)),
|
|
}
|
|
})
|
|
return _linkTemplates[mt]
|
|
}
|
|
func (f *Fs) fetchFormats() {
|
|
fetchFormatsOnce.Do(func() {
|
|
var about *drive.About
|
|
var err error
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
about, err = f.svc.About.Get().
|
|
Fields("exportFormats,importFormats").
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
fs.Errorf(f, "Failed to get Drive exportFormats and importFormats: %v", err)
|
|
_exportFormats = map[string][]string{}
|
|
_importFormats = map[string][]string{}
|
|
return
|
|
}
|
|
_exportFormats = fixMimeTypeMap(about.ExportFormats)
|
|
_importFormats = fixMimeTypeMap(about.ImportFormats)
|
|
})
|
|
}
|
|
|
|
// exportFormats returns the export formats from drive, fetching them
|
|
// if necessary.
|
|
//
|
|
// if the fetch fails then it will not export any drive formats
|
|
func (f *Fs) exportFormats() map[string][]string {
|
|
f.fetchFormats()
|
|
return _exportFormats
|
|
}
|
|
|
|
// importFormats returns the import formats from drive, fetching them
|
|
// if necessary.
|
|
//
|
|
// if the fetch fails then it will not import any drive formats
|
|
func (f *Fs) importFormats() map[string][]string {
|
|
f.fetchFormats()
|
|
return _importFormats
|
|
}
|
|
|
|
// findExportFormatByMimeType works out the optimum export settings
|
|
// for the given MIME type.
|
|
//
|
|
// Look through the exportExtensions and find the first format that can be
|
|
// converted. If none found then return ("", "", false)
|
|
func (f *Fs) findExportFormatByMimeType(itemMimeType string) (
|
|
extension, mimeType string, isDocument bool) {
|
|
exportMimeTypes, isDocument := f.exportFormats()[itemMimeType]
|
|
if isDocument {
|
|
for _, _extension := range f.exportExtensions {
|
|
_mimeType := mime.TypeByExtension(_extension)
|
|
if isLinkMimeType(_mimeType) {
|
|
return _extension, _mimeType, true
|
|
}
|
|
for _, emt := range exportMimeTypes {
|
|
if emt == _mimeType {
|
|
return _extension, _mimeType, true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// else return empty
|
|
return "", "", isDocument
|
|
}
|
|
|
|
// findExportFormatByMimeType works out the optimum export settings
|
|
// for the given drive.File.
|
|
//
|
|
// Look through the exportExtensions and find the first format that can be
|
|
// converted. If none found then return ("", "", "", false)
|
|
func (f *Fs) findExportFormat(item *drive.File) (extension, filename, mimeType string, isDocument bool) {
|
|
extension, mimeType, isDocument = f.findExportFormatByMimeType(item.MimeType)
|
|
if extension != "" {
|
|
filename = item.Name + extension
|
|
}
|
|
return
|
|
}
|
|
|
|
// findImportFormat finds the matching upload MIME type for a file
|
|
// If the given MIME type is in importMimeTypes, the matching upload
|
|
// MIME type is returned
|
|
//
|
|
// When no match is found "" is returned.
|
|
func (f *Fs) findImportFormat(mimeType string) string {
|
|
mimeType = fixMimeType(mimeType)
|
|
ifs := f.importFormats()
|
|
for _, mt := range f.importMimeTypes {
|
|
if mt == mimeType {
|
|
importMimeTypes := ifs[mimeType]
|
|
if l := len(importMimeTypes); l > 0 {
|
|
if l > 1 {
|
|
fs.Infof(f, "found %d import formats for %q: %q", l, mimeType, importMimeTypes)
|
|
}
|
|
return importMimeTypes[0]
|
|
}
|
|
}
|
|
}
|
|
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(dir string) (entries fs.DirEntries, err error) {
|
|
err = f.dirCache.FindRoot(false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
directoryID, err := f.dirCache.FindDir(dir, false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var iErr error
|
|
_, err = f.list([]string{directoryID}, "", false, false, false, func(item *drive.File) bool {
|
|
entry, err := f.itemToDirEntry(path.Join(dir, item.Name), item)
|
|
if err != nil {
|
|
return true
|
|
}
|
|
if entry != nil {
|
|
entries = append(entries, entry)
|
|
}
|
|
return false
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if iErr != nil {
|
|
return nil, iErr
|
|
}
|
|
return entries, nil
|
|
}
|
|
|
|
// listRRunner will read dirIDs from the in channel, perform the file listing an call cb with each DirEntry.
|
|
//
|
|
// In each cycle, will wait up to 10ms to read up to grouping entries from the in channel.
|
|
// If an error occurs it will be send to the out channel and then return. Once the in channel is closed,
|
|
// nil is send to the out channel and the function returns.
|
|
func (f *Fs) listRRunner(wg *sync.WaitGroup, in <-chan string, out chan<- error, cb func(fs.DirEntry) error, grouping int) {
|
|
var dirs []string
|
|
|
|
for dir := range in {
|
|
dirs = append(dirs[:0], dir)
|
|
wait := time.After(10 * time.Millisecond)
|
|
waitloop:
|
|
for i := 1; i < grouping; i++ {
|
|
select {
|
|
case d, ok := <-in:
|
|
if !ok {
|
|
break waitloop
|
|
}
|
|
dirs = append(dirs, d)
|
|
case <-wait:
|
|
break waitloop
|
|
}
|
|
}
|
|
var iErr error
|
|
_, err := f.list(dirs, "", false, false, false, func(item *drive.File) bool {
|
|
parentPath := ""
|
|
if len(item.Parents) > 0 {
|
|
p, ok := f.dirCache.GetInv(item.Parents[0])
|
|
if ok {
|
|
parentPath = p
|
|
}
|
|
}
|
|
remote := path.Join(parentPath, item.Name)
|
|
entry, err := f.itemToDirEntry(remote, item)
|
|
if err != nil {
|
|
iErr = err
|
|
return true
|
|
}
|
|
|
|
err = cb(entry)
|
|
if err != nil {
|
|
iErr = err
|
|
return true
|
|
}
|
|
return false
|
|
})
|
|
for range dirs {
|
|
wg.Done()
|
|
}
|
|
|
|
if iErr != nil {
|
|
out <- iErr
|
|
return
|
|
}
|
|
|
|
if err != nil {
|
|
out <- err
|
|
return
|
|
}
|
|
}
|
|
out <- nil
|
|
}
|
|
|
|
// ListR lists the objects and directories of the Fs starting
|
|
// from dir recursively into out.
|
|
//
|
|
// dir should be "" to start from the root, and should not
|
|
// have trailing slashes.
|
|
//
|
|
// This should return ErrDirNotFound if the directory isn't
|
|
// found.
|
|
//
|
|
// It should call callback for each tranche of entries read.
|
|
// These need not be returned in any particular order. If
|
|
// callback returns an error then the listing will stop
|
|
// immediately.
|
|
//
|
|
// Don't implement this unless you have a more efficient way
|
|
// of listing recursively that doing a directory traversal.
|
|
func (f *Fs) ListR(dir string, callback fs.ListRCallback) (err error) {
|
|
const (
|
|
grouping = 50
|
|
inputBuffer = 1000
|
|
)
|
|
|
|
err = f.dirCache.FindRoot(false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
directoryID, err := f.dirCache.FindDir(dir, false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
mu := sync.Mutex{} // protects in and overflow
|
|
wg := sync.WaitGroup{}
|
|
in := make(chan string, inputBuffer)
|
|
out := make(chan error, fs.Config.Checkers)
|
|
list := walk.NewListRHelper(callback)
|
|
overfflow := []string{}
|
|
|
|
cb := func(entry fs.DirEntry) error {
|
|
mu.Lock()
|
|
defer mu.Unlock()
|
|
if d, isDir := entry.(*fs.Dir); isDir && in != nil {
|
|
select {
|
|
case in <- d.ID():
|
|
wg.Add(1)
|
|
default:
|
|
overfflow = append(overfflow, d.ID())
|
|
}
|
|
}
|
|
return list.Add(entry)
|
|
}
|
|
|
|
wg.Add(1)
|
|
in <- directoryID
|
|
|
|
for i := 0; i < fs.Config.Checkers; i++ {
|
|
go f.listRRunner(&wg, in, out, cb, grouping)
|
|
}
|
|
go func() {
|
|
// wait until the all directories are processed
|
|
wg.Wait()
|
|
// if the input channel overflowed add the collected entries to the channel now
|
|
for len(overfflow) > 0 {
|
|
mu.Lock()
|
|
l := len(overfflow)
|
|
// only fill half of the channel to prevent entries beeing put into overfflow again
|
|
if l > inputBuffer/2 {
|
|
l = inputBuffer / 2
|
|
}
|
|
wg.Add(l)
|
|
for _, d := range overfflow[:l] {
|
|
in <- d
|
|
}
|
|
overfflow = overfflow[l:]
|
|
mu.Unlock()
|
|
|
|
// wait again for the completion of all directories
|
|
wg.Wait()
|
|
}
|
|
mu.Lock()
|
|
if in != nil {
|
|
// notify all workers to exit
|
|
close(in)
|
|
in = nil
|
|
}
|
|
mu.Unlock()
|
|
}()
|
|
// wait until the all workers to finish
|
|
for i := 0; i < fs.Config.Checkers; i++ {
|
|
e := <-out
|
|
mu.Lock()
|
|
// if one worker returns an error early, close the input so all other workers exit
|
|
if e != nil && in != nil {
|
|
err = e
|
|
close(in)
|
|
in = nil
|
|
}
|
|
mu.Unlock()
|
|
}
|
|
|
|
close(out)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return list.Flush()
|
|
}
|
|
|
|
// itemToDirEntry converts a drive.File to a fs.DirEntry.
|
|
// When the drive.File cannot be represented as a fs.DirEntry
|
|
// (nil, nil) is returned.
|
|
func (f *Fs) itemToDirEntry(remote string, item *drive.File) (fs.DirEntry, error) {
|
|
switch {
|
|
case item.MimeType == driveFolderType:
|
|
// cache the directory ID for later lookups
|
|
f.dirCache.Put(remote, item.Id)
|
|
when, _ := time.Parse(timeFormatIn, item.ModifiedTime)
|
|
d := fs.NewDir(remote, when).SetID(item.Id)
|
|
return d, nil
|
|
case f.opt.AuthOwnerOnly && !isAuthOwned(item):
|
|
// ignore object
|
|
default:
|
|
return f.newObjectWithInfo(remote, item)
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
// Creates a drive.File info from the parameters passed in.
|
|
//
|
|
// Used to create new objects
|
|
func (f *Fs) createFileInfo(remote string, modTime time.Time) (*drive.File, error) {
|
|
leaf, directoryID, err := f.dirCache.FindRootAndPath(remote, true)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Define the metadata for the file we are going to create.
|
|
createInfo := &drive.File{
|
|
Name: leaf,
|
|
Description: leaf,
|
|
Parents: []string{directoryID},
|
|
MimeType: fs.MimeTypeFromName(remote),
|
|
ModifiedTime: modTime.Format(timeFormatOut),
|
|
}
|
|
return createInfo, nil
|
|
}
|
|
|
|
// 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(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
|
|
exisitingObj, err := f.NewObject(src.Remote())
|
|
switch err {
|
|
case nil:
|
|
return exisitingObj, exisitingObj.Update(in, src, options...)
|
|
case fs.ErrorObjectNotFound:
|
|
// Not found so create it
|
|
return f.PutUnchecked(in, src, options...)
|
|
default:
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
// PutStream uploads to the remote path with the modTime given of indeterminate size
|
|
func (f *Fs) PutStream(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
|
|
return f.Put(in, src, options...)
|
|
}
|
|
|
|
// 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(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
|
|
remote := src.Remote()
|
|
size := src.Size()
|
|
modTime := src.ModTime()
|
|
srcMimeType := fs.MimeTypeFromName(remote)
|
|
srcExt := path.Ext(remote)
|
|
exportExt := ""
|
|
importMimeType := ""
|
|
|
|
if f.importMimeTypes != nil && !f.opt.SkipGdocs {
|
|
importMimeType = f.findImportFormat(srcMimeType)
|
|
|
|
if isInternalMimeType(importMimeType) {
|
|
remote = remote[:len(remote)-len(srcExt)]
|
|
|
|
exportExt, _, _ = f.findExportFormatByMimeType(importMimeType)
|
|
if exportExt == "" {
|
|
return nil, errors.Errorf("No export format found for %q", importMimeType)
|
|
}
|
|
if exportExt != srcExt && !f.opt.AllowImportNameChange {
|
|
return nil, errors.Errorf("Can't convert %q to a document with a different export filetype (%q)", srcExt, exportExt)
|
|
}
|
|
}
|
|
}
|
|
|
|
createInfo, err := f.createFileInfo(remote, modTime)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if importMimeType != "" {
|
|
createInfo.MimeType = importMimeType
|
|
}
|
|
|
|
var info *drive.File
|
|
if size == 0 || size < int64(f.opt.UploadCutoff) {
|
|
// Make the API request to upload metadata and file data.
|
|
// Don't retry, return a retry error instead
|
|
err = f.pacer.CallNoRetry(func() (bool, error) {
|
|
info, err = f.svc.Files.Create(createInfo).
|
|
Media(in, googleapi.ContentType(srcMimeType)).
|
|
Fields(googleapi.Field(partialFields)).
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
KeepRevisionForever(f.opt.KeepRevisionForever).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
} else {
|
|
// Upload the file in chunks
|
|
info, err = f.Upload(in, size, srcMimeType, "", createInfo, remote)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return f.newObjectWithInfo(remote, info)
|
|
}
|
|
|
|
// MergeDirs merges the contents of all the directories passed
|
|
// in into the first one and rmdirs the other directories.
|
|
func (f *Fs) MergeDirs(dirs []fs.Directory) error {
|
|
if len(dirs) < 2 {
|
|
return nil
|
|
}
|
|
dstDir := dirs[0]
|
|
for _, srcDir := range dirs[1:] {
|
|
// list the the objects
|
|
infos := []*drive.File{}
|
|
_, err := f.list([]string{srcDir.ID()}, "", false, false, true, func(info *drive.File) bool {
|
|
infos = append(infos, info)
|
|
return false
|
|
})
|
|
if err != nil {
|
|
return errors.Wrapf(err, "MergeDirs list failed on %v", srcDir)
|
|
}
|
|
// move them into place
|
|
for _, info := range infos {
|
|
fs.Infof(srcDir, "merging %q", info.Name)
|
|
// Move the file into the destination
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
_, err = f.svc.Files.Update(info.Id, nil).
|
|
RemoveParents(srcDir.ID()).
|
|
AddParents(dstDir.ID()).
|
|
Fields("").
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return errors.Wrapf(err, "MergDirs move failed on %q in %v", info.Name, srcDir)
|
|
}
|
|
}
|
|
// rmdir (into trash) the now empty source directory
|
|
fs.Infof(srcDir, "removing empty directory")
|
|
err = f.rmdir(srcDir.ID(), true)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "MergDirs move failed to rmdir %q", srcDir)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Mkdir creates the container if it doesn't exist
|
|
func (f *Fs) Mkdir(dir string) error {
|
|
err := f.dirCache.FindRoot(true)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if dir != "" {
|
|
_, err = f.dirCache.FindDir(dir, true)
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Rmdir deletes a directory unconditionally by ID
|
|
func (f *Fs) rmdir(directoryID string, useTrash bool) error {
|
|
return f.pacer.Call(func() (bool, error) {
|
|
var err error
|
|
if useTrash {
|
|
info := drive.File{
|
|
Trashed: true,
|
|
}
|
|
_, err = f.svc.Files.Update(directoryID, &info).
|
|
Fields("").
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
} else {
|
|
err = f.svc.Files.Delete(directoryID).
|
|
Fields("").
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
}
|
|
return shouldRetry(err)
|
|
})
|
|
}
|
|
|
|
// Rmdir deletes a directory
|
|
//
|
|
// Returns an error if it isn't empty
|
|
func (f *Fs) Rmdir(dir string) error {
|
|
root := path.Join(f.root, dir)
|
|
dc := f.dirCache
|
|
directoryID, err := dc.FindDir(dir, false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
var trashedFiles = false
|
|
found, err := f.list([]string{directoryID}, "", false, false, true, func(item *drive.File) bool {
|
|
if !item.Trashed {
|
|
fs.Debugf(dir, "Rmdir: contains file: %q", item.Name)
|
|
return true
|
|
}
|
|
fs.Debugf(dir, "Rmdir: contains trashed file: %q", item.Name)
|
|
trashedFiles = true
|
|
return false
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if found {
|
|
return errors.Errorf("directory not empty")
|
|
}
|
|
if root != "" {
|
|
// trash the directory if it had trashed files
|
|
// in or the user wants to trash, otherwise
|
|
// delete it.
|
|
err = f.rmdir(directoryID, trashedFiles || f.opt.UseTrash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
f.dirCache.FlushDir(dir)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Precision of the object storage system
|
|
func (f *Fs) Precision() time.Duration {
|
|
return time.Millisecond
|
|
}
|
|
|
|
// 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(src fs.Object, remote string) (fs.Object, error) {
|
|
var srcObj *baseObject
|
|
srcRemote := src.Remote()
|
|
ext := ""
|
|
switch src := src.(type) {
|
|
case *Object:
|
|
srcObj = &src.baseObject
|
|
case *documentObject:
|
|
srcObj = &src.baseObject
|
|
srcRemote, ext = srcRemote[:len(srcRemote)-src.extLen], srcRemote[len(srcRemote)-src.extLen:]
|
|
case *linkObject:
|
|
srcObj = &src.baseObject
|
|
srcRemote, ext = srcRemote[:len(srcRemote)-src.extLen], srcRemote[len(srcRemote)-src.extLen:]
|
|
default:
|
|
fs.Debugf(src, "Can't copy - not same remote type")
|
|
return nil, fs.ErrorCantCopy
|
|
}
|
|
|
|
if ext != "" {
|
|
if !strings.HasSuffix(remote, ext) {
|
|
fs.Debugf(src, "Can't copy - not same document type")
|
|
return nil, fs.ErrorCantCopy
|
|
}
|
|
remote = remote[:len(remote)-len(ext)]
|
|
}
|
|
|
|
createInfo, err := f.createFileInfo(remote, src.ModTime())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var info *drive.File
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
info, err = f.svc.Files.Copy(srcObj.id, createInfo).
|
|
Fields(googleapi.Field(partialFields)).
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
KeepRevisionForever(f.opt.KeepRevisionForever).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return f.newObjectWithInfo(remote, info)
|
|
}
|
|
|
|
// Purge deletes all the files and the container
|
|
//
|
|
// 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() error {
|
|
if f.root == "" {
|
|
return errors.New("can't purge root directory")
|
|
}
|
|
err := f.dirCache.FindRoot(false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
if f.opt.UseTrash {
|
|
info := drive.File{
|
|
Trashed: true,
|
|
}
|
|
_, err = f.svc.Files.Update(f.dirCache.RootID(), &info).
|
|
Fields("").
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
} else {
|
|
err = f.svc.Files.Delete(f.dirCache.RootID()).
|
|
Fields("").
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
}
|
|
return shouldRetry(err)
|
|
})
|
|
f.dirCache.ResetRoot()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// CleanUp empties the trash
|
|
func (f *Fs) CleanUp() error {
|
|
err := f.pacer.Call(func() (bool, error) {
|
|
err := f.svc.Files.EmptyTrash().Do()
|
|
return shouldRetry(err)
|
|
})
|
|
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// About gets quota information
|
|
func (f *Fs) About() (*fs.Usage, error) {
|
|
if f.isTeamDrive {
|
|
// Teamdrives don't appear to have a usage API so just return empty
|
|
return &fs.Usage{}, nil
|
|
}
|
|
var about *drive.About
|
|
var err error
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
about, err = f.svc.About.Get().Fields("storageQuota").Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to get Drive storageQuota")
|
|
}
|
|
q := about.StorageQuota
|
|
usage := &fs.Usage{
|
|
Used: fs.NewUsageValue(q.UsageInDrive), // bytes in use
|
|
Trashed: fs.NewUsageValue(q.UsageInDriveTrash), // bytes in trash
|
|
Other: fs.NewUsageValue(q.Usage - q.UsageInDrive), // other usage eg gmail in drive
|
|
}
|
|
if q.Limit > 0 {
|
|
usage.Total = fs.NewUsageValue(q.Limit) // quota of bytes that can be used
|
|
usage.Free = fs.NewUsageValue(q.Limit - q.Usage) // bytes which can be uploaded before reaching the quota
|
|
}
|
|
return usage, nil
|
|
}
|
|
|
|
// 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(src fs.Object, remote string) (fs.Object, error) {
|
|
var srcObj *baseObject
|
|
srcRemote := src.Remote()
|
|
ext := ""
|
|
switch src := src.(type) {
|
|
case *Object:
|
|
srcObj = &src.baseObject
|
|
case *documentObject:
|
|
srcObj = &src.baseObject
|
|
srcRemote, ext = srcRemote[:len(srcRemote)-src.extLen], srcRemote[len(srcRemote)-src.extLen:]
|
|
case *linkObject:
|
|
srcObj = &src.baseObject
|
|
srcRemote, ext = srcRemote[:len(srcRemote)-src.extLen], srcRemote[len(srcRemote)-src.extLen:]
|
|
default:
|
|
fs.Debugf(src, "Can't move - not same remote type")
|
|
return nil, fs.ErrorCantMove
|
|
}
|
|
|
|
if ext != "" {
|
|
if !strings.HasSuffix(remote, ext) {
|
|
fs.Debugf(src, "Can't move - not same document type")
|
|
return nil, fs.ErrorCantMove
|
|
}
|
|
remote = remote[:len(remote)-len(ext)]
|
|
}
|
|
|
|
_, srcParentID, err := srcObj.fs.dirCache.FindPath(src.Remote(), false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Temporary Object under construction
|
|
dstInfo, err := f.createFileInfo(remote, src.ModTime())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
dstParents := strings.Join(dstInfo.Parents, ",")
|
|
dstInfo.Parents = nil
|
|
|
|
// Do the move
|
|
var info *drive.File
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
info, err = f.svc.Files.Update(srcObj.id, dstInfo).
|
|
RemoveParents(srcParentID).
|
|
AddParents(dstParents).
|
|
Fields(googleapi.Field(partialFields)).
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return f.newObjectWithInfo(remote, info)
|
|
}
|
|
|
|
// PublicLink adds a "readable by anyone with link" permission on the given file or folder.
|
|
func (f *Fs) PublicLink(remote string) (link string, err error) {
|
|
id, err := f.dirCache.FindDir(remote, false)
|
|
if err == nil {
|
|
fs.Debugf(f, "attempting to share directory '%s'", remote)
|
|
} else {
|
|
fs.Debugf(f, "attempting to share single file '%s'", remote)
|
|
o, err := f.NewObject(remote)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
id = o.(fs.IDer).ID()
|
|
}
|
|
|
|
permission := &drive.Permission{
|
|
AllowFileDiscovery: false,
|
|
Role: "reader",
|
|
Type: "anyone",
|
|
}
|
|
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
// TODO: On TeamDrives this might fail if lacking permissions to change ACLs.
|
|
// Need to either check `canShare` attribute on the object or see if a sufficient permission is already present.
|
|
_, err = f.svc.Permissions.Create(id, permission).
|
|
Fields(googleapi.Field("id")).
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return fmt.Sprintf("https://drive.google.com/open?id=%s", id), nil
|
|
}
|
|
|
|
// 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(src fs.Fs, srcRemote, dstRemote string) error {
|
|
srcFs, ok := src.(*Fs)
|
|
if !ok {
|
|
fs.Debugf(srcFs, "Can't move directory - not same remote type")
|
|
return fs.ErrorCantDirMove
|
|
}
|
|
srcPath := path.Join(srcFs.root, srcRemote)
|
|
dstPath := path.Join(f.root, dstRemote)
|
|
|
|
// Refuse to move to or from the root
|
|
if srcPath == "" || dstPath == "" {
|
|
fs.Debugf(src, "DirMove error: Can't move root")
|
|
return errors.New("can't move root directory")
|
|
}
|
|
|
|
// find the root src directory
|
|
err := srcFs.dirCache.FindRoot(false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// find the root dst directory
|
|
if dstRemote != "" {
|
|
err = f.dirCache.FindRoot(true)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
if f.dirCache.FoundRoot() {
|
|
return fs.ErrorDirExists
|
|
}
|
|
}
|
|
|
|
// Find ID of dst parent, creating subdirs if necessary
|
|
var leaf, dstDirectoryID string
|
|
findPath := dstRemote
|
|
if dstRemote == "" {
|
|
findPath = f.root
|
|
}
|
|
leaf, dstDirectoryID, err = f.dirCache.FindPath(findPath, true)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Check destination does not exist
|
|
if dstRemote != "" {
|
|
_, err = f.dirCache.FindDir(dstRemote, false)
|
|
if err == fs.ErrorDirNotFound {
|
|
// OK
|
|
} else if err != nil {
|
|
return err
|
|
} else {
|
|
return fs.ErrorDirExists
|
|
}
|
|
}
|
|
|
|
// Find ID of src parent
|
|
var srcDirectoryID string
|
|
if srcRemote == "" {
|
|
srcDirectoryID, err = srcFs.dirCache.RootParentID()
|
|
} else {
|
|
_, srcDirectoryID, err = srcFs.dirCache.FindPath(srcRemote, false)
|
|
}
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Find ID of src
|
|
srcID, err := srcFs.dirCache.FindDir(srcRemote, false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Do the move
|
|
patch := drive.File{
|
|
Name: leaf,
|
|
}
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
_, err = f.svc.Files.Update(srcID, &patch).
|
|
RemoveParents(srcDirectoryID).
|
|
AddParents(dstDirectoryID).
|
|
Fields("").
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
srcFs.dirCache.FlushDir(srcRemote)
|
|
return nil
|
|
}
|
|
|
|
// ChangeNotify calls the passed function with a path that has had changes.
|
|
// If the implementation uses polling, it should adhere to the given interval.
|
|
//
|
|
// Automatically restarts itself in case of unexpected behaviour of the remote.
|
|
//
|
|
// Close the returned channel to stop being notified.
|
|
func (f *Fs) ChangeNotify(notifyFunc func(string, fs.EntryType), pollIntervalChan <-chan time.Duration) {
|
|
go func() {
|
|
// get the StartPageToken early so all changes from now on get processed
|
|
startPageToken, err := f.changeNotifyStartPageToken()
|
|
if err != nil {
|
|
fs.Infof(f, "Failed to get StartPageToken: %s", err)
|
|
}
|
|
var ticker *time.Ticker
|
|
var tickerC <-chan time.Time
|
|
for {
|
|
select {
|
|
case pollInterval, ok := <-pollIntervalChan:
|
|
if !ok {
|
|
if ticker != nil {
|
|
ticker.Stop()
|
|
}
|
|
return
|
|
}
|
|
if ticker != nil {
|
|
ticker.Stop()
|
|
ticker, tickerC = nil, nil
|
|
}
|
|
if pollInterval != 0 {
|
|
ticker = time.NewTicker(pollInterval)
|
|
tickerC = ticker.C
|
|
}
|
|
case <-tickerC:
|
|
if startPageToken == "" {
|
|
startPageToken, err = f.changeNotifyStartPageToken()
|
|
if err != nil {
|
|
fs.Infof(f, "Failed to get StartPageToken: %s", err)
|
|
continue
|
|
}
|
|
}
|
|
fs.Debugf(f, "Checking for changes on remote")
|
|
startPageToken, err = f.changeNotifyRunner(notifyFunc, startPageToken)
|
|
if err != nil {
|
|
fs.Infof(f, "Change notify listener failure: %s", err)
|
|
}
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
func (f *Fs) changeNotifyStartPageToken() (pageToken string, err error) {
|
|
var startPageToken *drive.StartPageToken
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
startPageToken, err = f.svc.Changes.GetStartPageToken().
|
|
SupportsTeamDrives(f.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return
|
|
}
|
|
return startPageToken.StartPageToken, nil
|
|
}
|
|
|
|
func (f *Fs) changeNotifyRunner(notifyFunc func(string, fs.EntryType), startPageToken string) (newStartPageToken string, err error) {
|
|
pageToken := startPageToken
|
|
for {
|
|
var changeList *drive.ChangeList
|
|
|
|
err = f.pacer.Call(func() (bool, error) {
|
|
changesCall := f.svc.Changes.List(pageToken).
|
|
Fields("nextPageToken,newStartPageToken,changes(fileId,file(name,parents,mimeType))")
|
|
if f.opt.ListChunk > 0 {
|
|
changesCall.PageSize(f.opt.ListChunk)
|
|
}
|
|
if f.isTeamDrive {
|
|
changesCall.TeamDriveId(f.opt.TeamDriveID)
|
|
changesCall.SupportsTeamDrives(true)
|
|
changesCall.IncludeTeamDriveItems(true)
|
|
}
|
|
changeList, err = changesCall.Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
type entryType struct {
|
|
path string
|
|
entryType fs.EntryType
|
|
}
|
|
var pathsToClear []entryType
|
|
for _, change := range changeList.Changes {
|
|
if path, ok := f.dirCache.GetInv(change.FileId); ok {
|
|
if change.File != nil && change.File.MimeType != driveFolderType {
|
|
pathsToClear = append(pathsToClear, entryType{path: path, entryType: fs.EntryObject})
|
|
} else {
|
|
pathsToClear = append(pathsToClear, entryType{path: path, entryType: fs.EntryDirectory})
|
|
}
|
|
continue
|
|
}
|
|
|
|
if change.File != nil {
|
|
changeType := fs.EntryDirectory
|
|
if change.File.MimeType != driveFolderType {
|
|
changeType = fs.EntryObject
|
|
}
|
|
|
|
// translate the parent dir of this object
|
|
if len(change.File.Parents) > 0 {
|
|
if path, ok := f.dirCache.GetInv(change.File.Parents[0]); ok {
|
|
// and append the drive file name to compute the full file name
|
|
if len(path) > 0 {
|
|
path = path + "/" + change.File.Name
|
|
} else {
|
|
path = change.File.Name
|
|
}
|
|
// this will now clear the actual file too
|
|
pathsToClear = append(pathsToClear, entryType{path: path, entryType: changeType})
|
|
}
|
|
} else { // a true root object that is changed
|
|
pathsToClear = append(pathsToClear, entryType{path: change.File.Name, entryType: changeType})
|
|
}
|
|
}
|
|
}
|
|
|
|
visitedPaths := make(map[string]bool)
|
|
for _, entry := range pathsToClear {
|
|
if _, ok := visitedPaths[entry.path]; ok {
|
|
continue
|
|
}
|
|
visitedPaths[entry.path] = true
|
|
notifyFunc(entry.path, entry.entryType)
|
|
}
|
|
|
|
switch {
|
|
case changeList.NewStartPageToken != "":
|
|
return changeList.NewStartPageToken, nil
|
|
case changeList.NextPageToken != "":
|
|
pageToken = changeList.NextPageToken
|
|
default:
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// DirCacheFlush resets the directory cache - used in testing as an
|
|
// optional interface
|
|
func (f *Fs) DirCacheFlush() {
|
|
f.dirCache.ResetRoot()
|
|
}
|
|
|
|
// Hashes returns the supported hash sets.
|
|
func (f *Fs) Hashes() hash.Set {
|
|
return hash.Set(hash.MD5)
|
|
}
|
|
|
|
// ------------------------------------------------------------
|
|
|
|
// Fs returns the parent Fs
|
|
func (o *baseObject) Fs() fs.Info {
|
|
return o.fs
|
|
}
|
|
|
|
// Return a string version
|
|
func (o *baseObject) String() string {
|
|
return o.remote
|
|
}
|
|
|
|
// Return a string version
|
|
func (o *Object) String() string {
|
|
if o == nil {
|
|
return "<nil>"
|
|
}
|
|
return o.remote
|
|
}
|
|
|
|
// Remote returns the remote path
|
|
func (o *baseObject) Remote() string {
|
|
return o.remote
|
|
}
|
|
|
|
// Hash returns the Md5sum of an object returning a lowercase hex string
|
|
func (o *Object) Hash(t hash.Type) (string, error) {
|
|
if t != hash.MD5 {
|
|
return "", hash.ErrUnsupported
|
|
}
|
|
return o.md5sum, nil
|
|
}
|
|
func (o *baseObject) Hash(t hash.Type) (string, error) {
|
|
if t != hash.MD5 {
|
|
return "", hash.ErrUnsupported
|
|
}
|
|
return "", nil
|
|
}
|
|
|
|
// Size returns the size of an object in bytes
|
|
func (o *baseObject) Size() int64 {
|
|
return o.bytes
|
|
}
|
|
|
|
// getRemoteInfo returns a drive.File for the remote
|
|
func (f *Fs) getRemoteInfo(remote string) (info *drive.File, err error) {
|
|
info, _, _, _, _, err = f.getRemoteInfoWithExport(remote)
|
|
return
|
|
}
|
|
|
|
// getRemoteInfoWithExport returns a drive.File and the export settings for the remote
|
|
func (f *Fs) getRemoteInfoWithExport(remote string) (
|
|
info *drive.File, extension, exportName, exportMimeType string, isDocument bool, err error) {
|
|
leaf, directoryID, err := f.dirCache.FindRootAndPath(remote, false)
|
|
if err != nil {
|
|
if err == fs.ErrorDirNotFound {
|
|
return nil, "", "", "", false, fs.ErrorObjectNotFound
|
|
}
|
|
return nil, "", "", "", false, err
|
|
}
|
|
|
|
found, err := f.list([]string{directoryID}, leaf, false, true, false, func(item *drive.File) bool {
|
|
if !f.opt.SkipGdocs {
|
|
extension, exportName, exportMimeType, isDocument = f.findExportFormat(item)
|
|
if exportName == leaf {
|
|
info = item
|
|
return true
|
|
}
|
|
if isDocument {
|
|
return false
|
|
}
|
|
}
|
|
if item.Name == leaf {
|
|
info = item
|
|
return true
|
|
}
|
|
return false
|
|
})
|
|
if err != nil {
|
|
return nil, "", "", "", false, err
|
|
}
|
|
if !found {
|
|
return nil, "", "", "", false, fs.ErrorObjectNotFound
|
|
}
|
|
return
|
|
}
|
|
|
|
// ModTime returns the modification time of the object
|
|
//
|
|
//
|
|
// It attempts to read the objects mtime and if that isn't present the
|
|
// LastModified returned in the http headers
|
|
func (o *baseObject) ModTime() time.Time {
|
|
modTime, err := time.Parse(timeFormatIn, o.modifiedDate)
|
|
if err != nil {
|
|
fs.Debugf(o, "Failed to read mtime from object: %v", err)
|
|
return time.Now()
|
|
}
|
|
return modTime
|
|
}
|
|
|
|
// SetModTime sets the modification time of the drive fs object
|
|
func (o *baseObject) SetModTime(modTime time.Time) error {
|
|
// New metadata
|
|
updateInfo := &drive.File{
|
|
ModifiedTime: modTime.Format(timeFormatOut),
|
|
}
|
|
// Set modified date
|
|
var info *drive.File
|
|
err := o.fs.pacer.Call(func() (bool, error) {
|
|
var err error
|
|
info, err = o.fs.svc.Files.Update(o.id, updateInfo).
|
|
Fields(googleapi.Field(partialFields)).
|
|
SupportsTeamDrives(o.fs.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Update info from read data
|
|
o.modifiedDate = info.ModifiedTime
|
|
return nil
|
|
}
|
|
|
|
// Storable returns a boolean as to whether this object is storable
|
|
func (o *baseObject) Storable() bool {
|
|
return true
|
|
}
|
|
|
|
// httpResponse gets an http.Response object for the object
|
|
// using the url and method passed in
|
|
func (o *baseObject) httpResponse(url, method string, options []fs.OpenOption) (req *http.Request, res *http.Response, err error) {
|
|
if url == "" {
|
|
return nil, nil, errors.New("forbidden to download - check sharing permission")
|
|
}
|
|
req, err = http.NewRequest(method, url, nil)
|
|
if err != nil {
|
|
return req, nil, err
|
|
}
|
|
fs.OpenOptionAddHTTPHeaders(req.Header, options)
|
|
err = o.fs.pacer.Call(func() (bool, error) {
|
|
res, err = o.fs.client.Do(req)
|
|
if err == nil {
|
|
err = googleapi.CheckResponse(res)
|
|
if err != nil {
|
|
_ = res.Body.Close() // ignore error
|
|
}
|
|
}
|
|
return shouldRetry(err)
|
|
})
|
|
if err != nil {
|
|
return req, nil, err
|
|
}
|
|
return req, res, nil
|
|
}
|
|
|
|
// openDocumentFile represents an documentObject open for reading.
|
|
// Updates the object size after read successfully.
|
|
type openDocumentFile struct {
|
|
o *documentObject // Object we are reading for
|
|
in io.ReadCloser // reading from here
|
|
bytes int64 // number of bytes read on this connection
|
|
eof bool // whether we have read end of file
|
|
errored bool // whether we have encountered an error during reading
|
|
}
|
|
|
|
// Read bytes from the object - see io.Reader
|
|
func (file *openDocumentFile) Read(p []byte) (n int, err error) {
|
|
n, err = file.in.Read(p)
|
|
file.bytes += int64(n)
|
|
if err != nil && err != io.EOF {
|
|
file.errored = true
|
|
}
|
|
if err == io.EOF {
|
|
file.eof = true
|
|
}
|
|
return
|
|
}
|
|
|
|
// Close the object and update bytes read
|
|
func (file *openDocumentFile) Close() (err error) {
|
|
// If end of file, update bytes read
|
|
if file.eof && !file.errored {
|
|
fs.Debugf(file.o, "Updating size of doc after download to %v", file.bytes)
|
|
file.o.bytes = file.bytes
|
|
}
|
|
return file.in.Close()
|
|
}
|
|
|
|
// Check it satisfies the interfaces
|
|
var _ io.ReadCloser = (*openDocumentFile)(nil)
|
|
|
|
// Checks to see if err is a googleapi.Error with of type what
|
|
func isGoogleError(err error, what string) bool {
|
|
if gerr, ok := err.(*googleapi.Error); ok {
|
|
for _, error := range gerr.Errors {
|
|
if error.Reason == what {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// open a url for reading
|
|
func (o *baseObject) open(url string, options ...fs.OpenOption) (in io.ReadCloser, err error) {
|
|
_, res, err := o.httpResponse(url, "GET", options)
|
|
if err != nil {
|
|
if isGoogleError(err, "cannotDownloadAbusiveFile") {
|
|
if o.fs.opt.AcknowledgeAbuse {
|
|
// Retry acknowledging abuse
|
|
if strings.ContainsRune(url, '?') {
|
|
url += "&"
|
|
} else {
|
|
url += "?"
|
|
}
|
|
url += "acknowledgeAbuse=true"
|
|
_, res, err = o.httpResponse(url, "GET", options)
|
|
} else {
|
|
err = errors.Wrap(err, "Use the --drive-acknowledge-abuse flag to download this file")
|
|
}
|
|
}
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "open file failed")
|
|
}
|
|
}
|
|
return res.Body, nil
|
|
}
|
|
|
|
// Open an object for read
|
|
func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
|
|
if o.v2Download {
|
|
var v2File *drive_v2.File
|
|
err = o.fs.pacer.Call(func() (bool, error) {
|
|
v2File, err = o.fs.v2Svc.Files.Get(o.id).
|
|
Fields("downloadUrl").
|
|
SupportsTeamDrives(o.fs.isTeamDrive).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
if err == nil {
|
|
fs.Debugf(o, "Using v2 download: %v", v2File.DownloadUrl)
|
|
o.url = v2File.DownloadUrl
|
|
o.v2Download = false
|
|
}
|
|
}
|
|
return o.baseObject.open(o.url, options...)
|
|
}
|
|
func (o *documentObject) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
|
|
// Update the size with what we are reading as it can change from
|
|
// the HEAD in the listing to this GET. This stops rclone marking
|
|
// the transfer as corrupted.
|
|
for _, o := range options {
|
|
// https://developers.google.com/drive/v3/web/manage-downloads#partial_download
|
|
if _, ok := o.(*fs.RangeOption); ok {
|
|
return nil, errors.New("partial downloads are not supported while exporting Google Documents")
|
|
}
|
|
}
|
|
in, err = o.baseObject.open(o.url, options...)
|
|
if in != nil {
|
|
in = &openDocumentFile{o: o, in: in}
|
|
}
|
|
return
|
|
}
|
|
func (o *linkObject) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
|
|
var offset, limit int64 = 0, -1
|
|
var data = o.content
|
|
for _, option := range options {
|
|
switch x := option.(type) {
|
|
case *fs.SeekOption:
|
|
offset = x.Offset
|
|
case *fs.RangeOption:
|
|
offset, limit = x.Decode(int64(len(data)))
|
|
default:
|
|
if option.Mandatory() {
|
|
fs.Logf(o, "Unsupported mandatory option: %v", option)
|
|
}
|
|
}
|
|
}
|
|
if l := int64(len(data)); offset > l {
|
|
offset = l
|
|
}
|
|
data = data[offset:]
|
|
if limit != -1 && limit < int64(len(data)) {
|
|
data = data[:limit]
|
|
}
|
|
|
|
return ioutil.NopCloser(bytes.NewReader(data)), nil
|
|
}
|
|
|
|
func (o *baseObject) update(updateInfo *drive.File, uploadMimeType string, in io.Reader,
|
|
src fs.ObjectInfo) (info *drive.File, err error) {
|
|
// Make the API request to upload metadata and file data.
|
|
size := src.Size()
|
|
if size == 0 || size < int64(o.fs.opt.UploadCutoff) {
|
|
// Don't retry, return a retry error instead
|
|
err = o.fs.pacer.CallNoRetry(func() (bool, error) {
|
|
info, err = o.fs.svc.Files.Update(o.id, updateInfo).
|
|
Media(in, googleapi.ContentType(uploadMimeType)).
|
|
Fields(googleapi.Field(partialFields)).
|
|
SupportsTeamDrives(o.fs.isTeamDrive).
|
|
KeepRevisionForever(o.fs.opt.KeepRevisionForever).
|
|
Do()
|
|
return shouldRetry(err)
|
|
})
|
|
return
|
|
}
|
|
// Upload the file in chunks
|
|
return o.fs.Upload(in, size, uploadMimeType, o.id, updateInfo, o.remote)
|
|
}
|
|
|
|
// Update the already existing object
|
|
//
|
|
// Copy the reader into the object updating modTime and size
|
|
//
|
|
// The new object may have been created if an error is returned
|
|
func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
|
|
srcMimeType := fs.MimeType(src)
|
|
updateInfo := &drive.File{
|
|
MimeType: srcMimeType,
|
|
ModifiedTime: src.ModTime().Format(timeFormatOut),
|
|
}
|
|
info, err := o.baseObject.update(updateInfo, srcMimeType, in, src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
newO, err := o.fs.newObjectWithInfo(src.Remote(), info)
|
|
switch newO := newO.(type) {
|
|
case *Object:
|
|
*o = *newO
|
|
default:
|
|
return errors.New("object type changed by update")
|
|
}
|
|
|
|
return nil
|
|
}
|
|
func (o *documentObject) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
|
|
srcMimeType := fs.MimeType(src)
|
|
importMimeType := ""
|
|
updateInfo := &drive.File{
|
|
MimeType: srcMimeType,
|
|
ModifiedTime: src.ModTime().Format(timeFormatOut),
|
|
}
|
|
|
|
if o.fs.importMimeTypes == nil || o.fs.opt.SkipGdocs {
|
|
return errors.Errorf("can't update google document type without --drive-import-formats")
|
|
}
|
|
importMimeType = o.fs.findImportFormat(updateInfo.MimeType)
|
|
if importMimeType == "" {
|
|
return errors.Errorf("no import format found for %q", srcMimeType)
|
|
}
|
|
if importMimeType != o.documentMimeType {
|
|
return errors.Errorf("can't change google document type (o: %q, src: %q, import: %q)", o.documentMimeType, srcMimeType, importMimeType)
|
|
}
|
|
updateInfo.MimeType = importMimeType
|
|
|
|
info, err := o.baseObject.update(updateInfo, srcMimeType, in, src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
remote := src.Remote()
|
|
remote = remote[:len(remote)-o.extLen]
|
|
|
|
newO, err := o.fs.newObjectWithInfo(remote, info)
|
|
switch newO := newO.(type) {
|
|
case *documentObject:
|
|
*o = *newO
|
|
default:
|
|
return errors.New("object type changed by update")
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (o *linkObject) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
|
|
return errors.New("cannot update link files")
|
|
}
|
|
|
|
// Remove an object
|
|
func (o *baseObject) Remove() error {
|
|
var err error
|
|
err = o.fs.pacer.Call(func() (bool, error) {
|
|
if o.fs.opt.UseTrash {
|
|
info := drive.File{
|
|
Trashed: true,
|
|
}
|
|
_, err = o.fs.svc.Files.Update(o.id, &info).
|
|
Fields("").
|
|
SupportsTeamDrives(o.fs.isTeamDrive).
|
|
Do()
|
|
} else {
|
|
err = o.fs.svc.Files.Delete(o.id).
|
|
Fields("").
|
|
SupportsTeamDrives(o.fs.isTeamDrive).
|
|
Do()
|
|
}
|
|
return shouldRetry(err)
|
|
})
|
|
return err
|
|
}
|
|
|
|
// MimeType of an Object if known, "" otherwise
|
|
func (o *baseObject) MimeType() string {
|
|
return o.mimeType
|
|
}
|
|
|
|
// ID returns the ID of the Object if known, or "" if not
|
|
func (o *baseObject) ID() string {
|
|
return o.id
|
|
}
|
|
|
|
// templates for document link files
|
|
const (
|
|
urlTemplate = `[InternetShortcut]{{"\r"}}
|
|
URL={{ .URL }}{{"\r"}}
|
|
`
|
|
weblocTemplate = `<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
|
|
<plist version="1.0">
|
|
<dict>
|
|
<key>URL</key>
|
|
<string>{{ .URL }}</string>
|
|
</dict>
|
|
</plist>
|
|
`
|
|
desktopTemplate = `[Desktop Entry]
|
|
Encoding=UTF-8
|
|
Name={{ .Title }}
|
|
URL={{ .URL }}
|
|
Icon=text-html
|
|
Type=Link
|
|
`
|
|
htmlTemplate = `<html>
|
|
<head>
|
|
<meta http-equiv="refresh" content="0; url={{ .URL }}" />
|
|
<title>{{ .Title }}</title>
|
|
</head>
|
|
<body>
|
|
Loading <a href="{{ .URL }}">{{ .Title }}</a>
|
|
</body>
|
|
</html>
|
|
`
|
|
)
|
|
|
|
// Check the interfaces are satisfied
|
|
var (
|
|
_ fs.Fs = (*Fs)(nil)
|
|
_ fs.Purger = (*Fs)(nil)
|
|
_ fs.CleanUpper = (*Fs)(nil)
|
|
_ fs.PutStreamer = (*Fs)(nil)
|
|
_ fs.Copier = (*Fs)(nil)
|
|
_ fs.Mover = (*Fs)(nil)
|
|
_ fs.DirMover = (*Fs)(nil)
|
|
_ fs.DirCacheFlusher = (*Fs)(nil)
|
|
_ fs.ChangeNotifier = (*Fs)(nil)
|
|
_ fs.PutUncheckeder = (*Fs)(nil)
|
|
_ fs.PublicLinker = (*Fs)(nil)
|
|
_ fs.ListRer = (*Fs)(nil)
|
|
_ fs.MergeDirser = (*Fs)(nil)
|
|
_ fs.Abouter = (*Fs)(nil)
|
|
_ fs.Object = (*Object)(nil)
|
|
_ fs.MimeTyper = (*Object)(nil)
|
|
_ fs.IDer = (*Object)(nil)
|
|
_ fs.Object = (*documentObject)(nil)
|
|
_ fs.MimeTyper = (*documentObject)(nil)
|
|
_ fs.IDer = (*documentObject)(nil)
|
|
_ fs.Object = (*linkObject)(nil)
|
|
_ fs.MimeTyper = (*linkObject)(nil)
|
|
_ fs.IDer = (*linkObject)(nil)
|
|
)
|