Adam Van Ymeren
7a04f298d2
- update to latest telegram layer - remove some references to fields in tg.Entities that don't exist in the schema - originally added here: https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e - referenced here - https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3 - https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e
65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
package downloader
|
|
|
|
import (
|
|
"context"
|
|
"strconv"
|
|
|
|
"github.com/go-faster/errors"
|
|
|
|
"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
|
|
)
|
|
|
|
// RedirectError error is returned when Downloader get CDN redirect.
|
|
// See https://core.telegram.org/constructor/upload.fileCdnRedirect.
|
|
type RedirectError struct {
|
|
Redirect *tg.UploadFileCDNRedirect
|
|
}
|
|
|
|
// Error implements error interface.
|
|
func (r *RedirectError) Error() string {
|
|
return "redirect to CDN DC " + strconv.Itoa(r.Redirect.DCID)
|
|
}
|
|
|
|
// master is a master DC download schema.
|
|
// See https://core.telegram.org/api/files#downloading-files.
|
|
type master struct {
|
|
client Client
|
|
|
|
precise bool
|
|
allowCDN bool
|
|
location tg.InputFileLocationClass
|
|
}
|
|
|
|
var _ schema = master{}
|
|
|
|
func (c master) Chunk(ctx context.Context, offset int64, limit int) (chunk, error) {
|
|
req := &tg.UploadGetFileRequest{
|
|
Offset: offset,
|
|
Limit: limit,
|
|
Location: c.location,
|
|
}
|
|
req.SetCDNSupported(c.allowCDN)
|
|
req.SetPrecise(c.precise)
|
|
|
|
r, err := c.client.UploadGetFile(ctx, req)
|
|
if err != nil {
|
|
return chunk{}, err
|
|
}
|
|
|
|
switch result := r.(type) {
|
|
case *tg.UploadFile:
|
|
return chunk{data: result.Bytes, tag: result.Type}, nil
|
|
case *tg.UploadFileCDNRedirect:
|
|
return chunk{}, &RedirectError{Redirect: result}
|
|
default:
|
|
return chunk{}, errors.Errorf("unexpected type %T", r)
|
|
}
|
|
}
|
|
|
|
func (c master) Hashes(ctx context.Context, offset int64) ([]tg.FileHash, error) {
|
|
return c.client.UploadGetFileHashes(ctx, &tg.UploadGetFileHashesRequest{
|
|
Location: c.location,
|
|
Offset: offset,
|
|
})
|
|
}
|