mirror of
https://github.com/rclone/rclone.git
synced 2024-12-19 01:03:42 +08:00
377 lines
10 KiB
Go
377 lines
10 KiB
Go
// Store the parsing of file patterns
|
|
|
|
package googlephotos
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"path"
|
|
"regexp"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/rclone/rclone/backend/googlephotos/api"
|
|
"github.com/rclone/rclone/fs"
|
|
)
|
|
|
|
// lister describes the subset of the interfaces on Fs needed for the
|
|
// file pattern parsing
|
|
type lister interface {
|
|
listDir(ctx context.Context, prefix string, filter api.SearchFilter) (entries fs.DirEntries, err error)
|
|
listAlbums(ctx context.Context, shared bool) (all *albums, err error)
|
|
listUploads(ctx context.Context, dir string) (entries fs.DirEntries, err error)
|
|
dirTime() time.Time
|
|
startYear() int
|
|
includeArchived() bool
|
|
}
|
|
|
|
// dirPattern describes a single directory pattern
|
|
type dirPattern struct {
|
|
re string // match for the path
|
|
match *regexp.Regexp // compiled match
|
|
canUpload bool // true if can upload here
|
|
canMkdir bool // true if can make a directory here
|
|
isFile bool // true if this is a file
|
|
isUpload bool // true if this is the upload directory
|
|
// function to turn a match into DirEntries
|
|
toEntries func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error)
|
|
}
|
|
|
|
// dirPatterns is a slice of all the directory patterns
|
|
type dirPatterns []dirPattern
|
|
|
|
// patterns describes the layout of the google photos backend file system.
|
|
//
|
|
// NB no trailing / on paths
|
|
var patterns = dirPatterns{
|
|
{
|
|
re: `^$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
return fs.DirEntries{
|
|
fs.NewDir(prefix+"media", f.dirTime()),
|
|
fs.NewDir(prefix+"album", f.dirTime()),
|
|
fs.NewDir(prefix+"shared-album", f.dirTime()),
|
|
fs.NewDir(prefix+"upload", f.dirTime()),
|
|
fs.NewDir(prefix+"feature", f.dirTime()),
|
|
}, nil
|
|
},
|
|
},
|
|
{
|
|
re: `^upload(?:/(.*))?$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
return f.listUploads(ctx, match[0])
|
|
},
|
|
canUpload: true,
|
|
canMkdir: true,
|
|
isUpload: true,
|
|
},
|
|
{
|
|
re: `^upload/(.*)$`,
|
|
isFile: true,
|
|
canUpload: true,
|
|
isUpload: true,
|
|
},
|
|
{
|
|
re: `^media$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
return fs.DirEntries{
|
|
fs.NewDir(prefix+"all", f.dirTime()),
|
|
fs.NewDir(prefix+"by-year", f.dirTime()),
|
|
fs.NewDir(prefix+"by-month", f.dirTime()),
|
|
fs.NewDir(prefix+"by-day", f.dirTime()),
|
|
}, nil
|
|
},
|
|
},
|
|
{
|
|
re: `^media/all$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
return f.listDir(ctx, prefix, api.SearchFilter{})
|
|
},
|
|
},
|
|
{
|
|
re: `^media/all/([^/]+)$`,
|
|
isFile: true,
|
|
},
|
|
{
|
|
re: `^media/by-year$`,
|
|
toEntries: years,
|
|
},
|
|
{
|
|
re: `^media/by-year/(\d{4})$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
filter, err := yearMonthDayFilter(ctx, f, match)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return f.listDir(ctx, prefix, filter)
|
|
},
|
|
},
|
|
{
|
|
re: `^media/by-year/(\d{4})/([^/]+)$`,
|
|
isFile: true,
|
|
},
|
|
{
|
|
re: `^media/by-month$`,
|
|
toEntries: years,
|
|
},
|
|
{
|
|
re: `^media/by-month/(\d{4})$`,
|
|
toEntries: months,
|
|
},
|
|
{
|
|
re: `^media/by-month/\d{4}/(\d{4})-(\d{2})$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
filter, err := yearMonthDayFilter(ctx, f, match)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return f.listDir(ctx, prefix, filter)
|
|
},
|
|
},
|
|
{
|
|
re: `^media/by-month/\d{4}/(\d{4})-(\d{2})/([^/]+)$`,
|
|
isFile: true,
|
|
},
|
|
{
|
|
re: `^media/by-day$`,
|
|
toEntries: years,
|
|
},
|
|
{
|
|
re: `^media/by-day/(\d{4})$`,
|
|
toEntries: days,
|
|
},
|
|
{
|
|
re: `^media/by-day/\d{4}/(\d{4})-(\d{2})-(\d{2})$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (fs.DirEntries, error) {
|
|
filter, err := yearMonthDayFilter(ctx, f, match)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return f.listDir(ctx, prefix, filter)
|
|
},
|
|
},
|
|
{
|
|
re: `^media/by-day/\d{4}/(\d{4})-(\d{2})-(\d{2})/([^/]+)$`,
|
|
isFile: true,
|
|
},
|
|
{
|
|
re: `^album$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
return albumsToEntries(ctx, f, false, prefix, "")
|
|
},
|
|
},
|
|
{
|
|
re: `^album/(.+)$`,
|
|
canMkdir: true,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
return albumsToEntries(ctx, f, false, prefix, match[1])
|
|
|
|
},
|
|
},
|
|
{
|
|
re: `^album/(.+?)/([^/]+)$`,
|
|
canUpload: true,
|
|
isFile: true,
|
|
},
|
|
{
|
|
re: `^shared-album$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
return albumsToEntries(ctx, f, true, prefix, "")
|
|
},
|
|
},
|
|
{
|
|
re: `^shared-album/(.+)$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
return albumsToEntries(ctx, f, true, prefix, match[1])
|
|
|
|
},
|
|
},
|
|
{
|
|
re: `^shared-album/(.+?)/([^/]+)$`,
|
|
isFile: true,
|
|
},
|
|
{
|
|
re: `^feature$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
return fs.DirEntries{
|
|
fs.NewDir(prefix+"favorites", f.dirTime()),
|
|
}, nil
|
|
},
|
|
},
|
|
{
|
|
re: `^feature/favorites$`,
|
|
toEntries: func(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
filter := featureFilter(ctx, f, match)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return f.listDir(ctx, prefix, filter)
|
|
},
|
|
},
|
|
{
|
|
re: `^feature/favorites/([^/]+)$`,
|
|
isFile: true,
|
|
},
|
|
}.mustCompile()
|
|
|
|
// mustCompile compiles the regexps in the dirPatterns
|
|
func (ds dirPatterns) mustCompile() dirPatterns {
|
|
for i := range ds {
|
|
pattern := &ds[i]
|
|
pattern.match = regexp.MustCompile(pattern.re)
|
|
}
|
|
return ds
|
|
}
|
|
|
|
// match finds the path passed in the matching structure and
|
|
// returns the parameters and a pointer to the match, or nil.
|
|
func (ds dirPatterns) match(root string, itemPath string, isFile bool) (match []string, prefix string, pattern *dirPattern) {
|
|
itemPath = strings.Trim(itemPath, "/")
|
|
absPath := path.Join(root, itemPath)
|
|
prefix = strings.Trim(absPath[len(root):], "/")
|
|
if prefix != "" {
|
|
prefix += "/"
|
|
}
|
|
for i := range ds {
|
|
pattern = &ds[i]
|
|
if pattern.isFile != isFile {
|
|
continue
|
|
}
|
|
match = pattern.match.FindStringSubmatch(absPath)
|
|
if match != nil {
|
|
return
|
|
}
|
|
}
|
|
return nil, "", nil
|
|
}
|
|
|
|
// Return the years from startYear to today
|
|
func years(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
currentYear := f.dirTime().Year()
|
|
for year := f.startYear(); year <= currentYear; year++ {
|
|
entries = append(entries, fs.NewDir(prefix+fmt.Sprint(year), f.dirTime()))
|
|
}
|
|
return entries, nil
|
|
}
|
|
|
|
// Return the months in a given year
|
|
func months(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
year := match[1]
|
|
for month := 1; month <= 12; month++ {
|
|
entries = append(entries, fs.NewDir(fmt.Sprintf("%s%s-%02d", prefix, year, month), f.dirTime()))
|
|
}
|
|
return entries, nil
|
|
}
|
|
|
|
// Return the days in a given year
|
|
func days(ctx context.Context, f lister, prefix string, match []string) (entries fs.DirEntries, err error) {
|
|
year := match[1]
|
|
current, err := time.Parse("2006", year)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("bad year %q", match[1])
|
|
}
|
|
currentYear := current.Year()
|
|
for current.Year() == currentYear {
|
|
entries = append(entries, fs.NewDir(prefix+current.Format("2006-01-02"), f.dirTime()))
|
|
current = current.AddDate(0, 0, 1)
|
|
}
|
|
return entries, nil
|
|
}
|
|
|
|
// This creates a search filter on year/month/day as provided
|
|
func yearMonthDayFilter(ctx context.Context, f lister, match []string) (sf api.SearchFilter, err error) {
|
|
year, err := strconv.Atoi(match[1])
|
|
if err != nil || year < 1000 || year > 3000 {
|
|
return sf, fmt.Errorf("bad year %q", match[1])
|
|
}
|
|
sf = api.SearchFilter{
|
|
Filters: &api.Filters{
|
|
DateFilter: &api.DateFilter{
|
|
Dates: []api.Date{
|
|
{
|
|
Year: year,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
if len(match) >= 3 {
|
|
month, err := strconv.Atoi(match[2])
|
|
if err != nil || month < 1 || month > 12 {
|
|
return sf, fmt.Errorf("bad month %q", match[2])
|
|
}
|
|
sf.Filters.DateFilter.Dates[0].Month = month
|
|
}
|
|
if len(match) >= 4 {
|
|
day, err := strconv.Atoi(match[3])
|
|
if err != nil || day < 1 || day > 31 {
|
|
return sf, fmt.Errorf("bad day %q", match[3])
|
|
}
|
|
sf.Filters.DateFilter.Dates[0].Day = day
|
|
}
|
|
return sf, nil
|
|
}
|
|
|
|
// featureFilter creates a filter for the Feature enum
|
|
//
|
|
// The API only supports one feature, FAVORITES, so hardcode that feature.
|
|
//
|
|
// https://developers.google.com/photos/library/reference/rest/v1/mediaItems/search#FeatureFilter
|
|
func featureFilter(ctx context.Context, f lister, match []string) (sf api.SearchFilter) {
|
|
sf = api.SearchFilter{
|
|
Filters: &api.Filters{
|
|
FeatureFilter: &api.FeatureFilter{
|
|
IncludedFeatures: []string{
|
|
"FAVORITES",
|
|
},
|
|
},
|
|
},
|
|
}
|
|
return sf
|
|
}
|
|
|
|
// Turns an albumPath into entries
|
|
//
|
|
// These can either be synthetic directory entries if the album path
|
|
// is a prefix of another album, or actual files, or a combination of
|
|
// the two.
|
|
func albumsToEntries(ctx context.Context, f lister, shared bool, prefix string, albumPath string) (entries fs.DirEntries, err error) {
|
|
albums, err := f.listAlbums(ctx, shared)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// Put in the directories
|
|
dirs, foundAlbumPath := albums.getDirs(albumPath)
|
|
if foundAlbumPath {
|
|
for _, dir := range dirs {
|
|
d := fs.NewDir(prefix+dir, f.dirTime())
|
|
dirPath := path.Join(albumPath, dir)
|
|
// if this dir is an album add more special stuff
|
|
album, ok := albums.get(dirPath)
|
|
if ok {
|
|
count, err := strconv.ParseInt(album.MediaItemsCount, 10, 64)
|
|
if err != nil {
|
|
fs.Debugf(f, "Error reading media count: %v", err)
|
|
}
|
|
d.SetID(album.ID).SetItems(count)
|
|
}
|
|
entries = append(entries, d)
|
|
}
|
|
}
|
|
// if this is an album then return a filter to list it
|
|
album, foundAlbum := albums.get(albumPath)
|
|
if foundAlbum {
|
|
filter := api.SearchFilter{AlbumID: album.ID}
|
|
newEntries, err := f.listDir(ctx, prefix, filter)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
entries = append(entries, newEntries...)
|
|
}
|
|
if !foundAlbumPath && !foundAlbum && albumPath != "" {
|
|
return nil, fs.ErrorDirNotFound
|
|
}
|
|
return entries, nil
|
|
}
|