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package imagekit
import (
"context"
"fmt"
"net/http"
"strconv"
"time"
"github.com/rclone/rclone/backend/imagekit/client"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/fserrors"
"github.com/rclone/rclone/lib/pacer"
)
func (f *Fs) getFiles(ctx context.Context, path string, includeVersions bool) (files []client.File, err error) {
files = make([]client.File, 0)
var hasMore = true
for hasMore {
err = f.pacer.Call(func() (bool, error) {
var data *[]client.File
var res *http.Response
res, data, err = f.ik.Files(ctx, client.FilesOrFolderParam{
Skip: len(files),
Limit: 100,
Path: path,
}, includeVersions)
hasMore = !(len(*data) == 0 || len(*data) < 100)
if len(*data) > 0 {
files = append(files, *data...)
}
return f.shouldRetry(ctx, res, err)
})
}
if err != nil {
return make([]client.File, 0), err
}
return files, nil
}
func (f *Fs) getFolders(ctx context.Context, path string) (folders []client.Folder, err error) {
folders = make([]client.Folder, 0)
var hasMore = true
for hasMore {
err = f.pacer.Call(func() (bool, error) {
var data *[]client.Folder
var res *http.Response
res, data, err = f.ik.Folders(ctx, client.FilesOrFolderParam{
Skip: len(folders),
Limit: 100,
Path: path,
})
hasMore = !(len(*data) == 0 || len(*data) < 100)
if len(*data) > 0 {
folders = append(folders, *data...)
}
return f.shouldRetry(ctx, res, err)
})
}
if err != nil {
return make([]client.Folder, 0), err
}
return folders, nil
}
func (f *Fs) getFileByName(ctx context.Context, path string, name string) (file *client.File) {
err := f.pacer.Call(func() (bool, error) {
res, data, err := f.ik.Files(ctx, client.FilesOrFolderParam{
Limit: 1,
Path: path,
SearchQuery: fmt.Sprintf(`type = "file" AND name = %s`, strconv.Quote(name)),
}, false)
if len(*data) == 0 {
file = nil
} else {
file = &(*data)[0]
}
return f.shouldRetry(ctx, res, err)
})
if err != nil {
return nil
}
return file
}
func (f *Fs) getFolderByName(ctx context.Context, path string, name string) (folder *client.Folder, err error) {
err = f.pacer.Call(func() (bool, error) {
res, data, err := f.ik.Folders(ctx, client.FilesOrFolderParam{
Limit: 1,
Path: path,
SearchQuery: fmt.Sprintf(`type = "folder" AND name = %s`, strconv.Quote(name)),
})
if len(*data) == 0 {
folder = nil
} else {
folder = &(*data)[0]
}
return f.shouldRetry(ctx, res, err)
})
if err != nil {
return nil, err
}
return folder, nil
}
// retryErrorCodes is a slice of error codes that we will retry
var retryErrorCodes = []int{
401, // Unauthorized (e.g. "Token has expired")
408, // Request Timeout
429, // Rate exceeded.
500, // Get occasional 500 Internal Server Error
503, // Service Unavailable
504, // Gateway Time-out
}
func shouldRetryHTTP(resp *http.Response, retryErrorCodes []int) bool {
if resp == nil {
return false
}
for _, e := range retryErrorCodes {
if resp.StatusCode == e {
return true
}
}
return false
}
func (f *Fs) shouldRetry(ctx context.Context, resp *http.Response, err error) (bool, error) {
if fserrors.ContextError(ctx, &err) {
return false, err
}
if resp != nil && (resp.StatusCode == 429 || resp.StatusCode == 503) {
var retryAfter = 1
retryAfterString := resp.Header.Get("X-RateLimit-Reset")
if retryAfterString != "" {
var err error
retryAfter, err = strconv.Atoi(retryAfterString)
if err != nil {
fs.Errorf(f, "Malformed %s header %q: %v", "X-RateLimit-Reset", retryAfterString, err)
}
}
return true, pacer.RetryAfterError(err, time.Duration(retryAfter)*time.Millisecond)
}
return fserrors.ShouldRetry(err) || shouldRetryHTTP(resp, retryErrorCodes), err
}
// EncodePath encapsulates the logic for encoding a path
func (f *Fs) EncodePath(str string) string {
return f.opt.Enc.FromStandardPath(str)
}
// DecodePath encapsulates the logic for decoding a path
func (f *Fs) DecodePath(str string) string {
return f.opt.Enc.ToStandardPath(str)
}
// EncodeFileName encapsulates the logic for encoding a file name
func (f *Fs) EncodeFileName(str string) string {
return f.opt.Enc.FromStandardName(str)
}
// DecodeFileName encapsulates the logic for decoding a file name
func (f *Fs) DecodeFileName(str string) string {
return f.opt.Enc.ToStandardName(str)
}
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