mirror of
https://github.com/rclone/rclone.git
synced 2024-12-22 23:22:08 +01:00
98 lines
3.9 KiB
Go
98 lines
3.9 KiB
Go
//go:build !noselfupdate
|
|
|
|
package selfupdate
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/ProtonMail/go-crypto/openpgp"
|
|
"github.com/ProtonMail/go-crypto/openpgp/clearsign"
|
|
"github.com/rclone/rclone/fs"
|
|
)
|
|
|
|
var ncwPublicKeyPGP = `-----BEGIN PGP PUBLIC KEY BLOCK-----
|
|
|
|
mQGiBDuy3V0RBADVQOAF5aFiCxD3t2h6iAF2WMiaMlgZ6kX2i/u7addNkzX71VU9
|
|
7NpI0SnsP5YWt+gEedST6OmFbtLfZWCR4KWn5XnNdjCMNhxaH6WccVqNm4ALPIqT
|
|
59uVjkgf8RISmmoNJ1d+2wMWjQTUfwOEmoIgH6n+2MYNUKuctBrwAACflwCg1I1Q
|
|
O/prv/5hczdpQCs+fL87DxsD/Rt7pIXvsIOZyQWbIhSvNpGalJuMkW5Jx92UjsE9
|
|
1Ipo3Xr6SGRPgW9+NxAZAsiZfCX/19knAyNrN9blwL0rcPDnkhdGwK69kfjF+wq+
|
|
QbogRGodbKhqY4v+cMNkKiemBuTQiWPkpKjifwNsD1fNjNKfDP3pJ64Yz7a4fuzV
|
|
X1YwBACpKVuEen34lmcX6ziY4jq8rKibKBs4JjQCRO24kYoHDULVe+RS9krQWY5b
|
|
e0foDhru4dsKccefK099G+WEzKVCKxupstWkTT/iJwajR8mIqd4AhD0wO9W3MCfV
|
|
Ov8ykMDZ7qBWk1DHc87Ep3W1o8t8wq74ifV+HjhhWg8QAylXg7QlTmljayBDcmFp
|
|
Zy1Xb29kIDxuaWNrQGNyYWlnLXdvb2QuY29tPoh0BBMRCAA0BQsHCgMEAxUDAgMW
|
|
AgECF4ACGQEWIQT79zfs6firGGBL0qyTk14C/ztU+gUCZS/mXAIbIwAKCRCTk14C
|
|
/ztU+tX+AJ9CUAnPvT4w5yRAPRfDiwWIPUqBOgCgiTelkzvUxvLWnYmpowwzKmsx
|
|
qaSJAjMEEAEIAB0WIQTjs1jchY+zB/SBcLnLDb68XzLIHQUCZPRnNAAKCRDLDb68
|
|
XzLIHZSAD/oCk9Z0xJfbpriphTBxFy7bWyPKF1lM1GZZaLKkktGfunf1i0Q7rhwp
|
|
Nu+u1launlOTp6ZoY36Ce2Qa1eSxWAQdjVajw9kOHXCAewrTREOMY/mb7RVGjajo
|
|
0Egl8T9iD3JRyaxu2iVtbpZYuqehtGG28CaCzmtqE+EJcx1cGqAGSuuaDWRYlVX8
|
|
KDip44GQB5Lut30vwSIoZG1CPCR6VE82u4cl3mYZUfcJkCHsiLzoeadVzb+fOd+2
|
|
ybzBn8Y77ifGgM+dSFSHe03mFfcHPdp0QImF9HQR7XI0UMZmEJsw7c2vDrRa+kRY
|
|
2A4/amGn4Tahuazq8g2yqgGm3yAj49qGNarAau849lDr7R49j73ESnNVBGJ9ShzU
|
|
4Ls+S1A5gohZVu2s1fkE3mbAmoTfU4JCrpRydOuL9xRJk5gbL44sKeuGODNshyTP
|
|
JzG9DmRHpLsBn59v8mg5tqSfBIGqcqBxxnYHJnkK801MkaLW2m7wDmtz6P3TW86g
|
|
GukzfIN3/OufLjnpN3Nx376JwWDDIyif7sn6/q+ZMwGz9uLKZkAeM5c3Dh4ygpgl
|
|
iSLoV2bZzDz0iLxKWW7QOVVdWHmlEqbTldpQ7gUEPG7mxpzVo0xd6nHncSq0M91x
|
|
29It4B3fATx/iJB2eardMzSsbzHiwTg0eswhYYGpSKZLgp4RShnVAbkCDQQ7st2B
|
|
EAgAjpB0UGDf/FrWAUo9jLWKFX15J0arBZkYm+iRax8K8fLnXzS2P+9Q04sAmt2q
|
|
CUxK9681Nd7xtPrkPrjbcACwuFyH3Cr9o2qseiVNgAHPFGKCNxLX/9PKWfmdoZTO
|
|
VVBcNV+sOTcx382uR04WPuv9jIwXT6JbCkXPaoCMv3mLnB9VnWRYatPYCaK8TXAP
|
|
WxZP8lrcUMjQ1GRTQ1vP9rRMp7iaXyItW1lelNFvHEII92QddeBLK7V5ng2sX/BM
|
|
m6/AafXZMnUQX3lpWQfEBTDT4qYsZ1zIEb4gq4dqauyNYgBcZdX//8oDE+BS2Fxx
|
|
DTccyOW0Wyt2Z6flDTfhgzd46wADBQf+MAqIgADwulmZk+e30Znj46VmnbZUB/J8
|
|
M4WXg6X5xaOQsCCMAWybmCc4pxFIT/1c/GdCqSHDv5nKBi5QyBMMn33/kgzVRAve
|
|
ihL6gWsNoT31Lxst457XuyRx1dwD8rzdWoP2b3etBGdu0P7vnOoqRmf1Y0XIoJeD
|
|
k/o8U901hG2VAo5zAVH2YdEtSZqlBIAzxjakKAAtnsZWIpBxrz9NPVOBmT18kxlg
|
|
Z7P4iU4/FMnGOfzT6/LCTj/B0hZKJCP7y7lHNP2yOabvvBsxU0ZGph1b8R6Zb1nP
|
|
2+LQIi8kaBs8ypy7HDx7/mWe5DoyLe4NHQ/ZE0gCEWt1mlVIwTzFBohGBBgRAgAG
|
|
BQI7st2BAAoJEJOTXgL/O1T6YsEAoLZx0XLt4tpAC/LNwTZUrodUiOckAKC4DTRv
|
|
EtC4nj5EImssVk/xmU3axw==
|
|
=VUqh
|
|
-----END PGP PUBLIC KEY BLOCK-----
|
|
`
|
|
|
|
func verifyHashsum(ctx context.Context, siteURL, version, archive string, hash []byte) error {
|
|
sumsURL := fmt.Sprintf("%s/%s/SHA256SUMS", siteURL, version)
|
|
sumsBuf, err := downloadFile(ctx, sumsURL)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fs.Debugf(nil, "downloaded hashsum list: %s", sumsURL)
|
|
return verifyHashsumDownloaded(ctx, sumsBuf, archive, hash)
|
|
}
|
|
|
|
func verifyHashsumDownloaded(ctx context.Context, sumsBuf []byte, archive string, hash []byte) error {
|
|
keyRing, err := openpgp.ReadArmoredKeyRing(strings.NewReader(ncwPublicKeyPGP))
|
|
if err != nil {
|
|
return fmt.Errorf("unsupported signing key: %w", err)
|
|
}
|
|
|
|
block, rest := clearsign.Decode(sumsBuf)
|
|
if block == nil {
|
|
return errors.New("invalid hashsum signature: couldn't find detached signature")
|
|
}
|
|
if len(rest) > 0 {
|
|
return fmt.Errorf("invalid hashsum signature: %d bytes of unsigned data", len(rest))
|
|
}
|
|
|
|
_, err = openpgp.CheckDetachedSignature(keyRing, bytes.NewReader(block.Bytes), block.ArmoredSignature.Body, nil)
|
|
if err != nil {
|
|
return fmt.Errorf("invalid hashsum signature: %w", err)
|
|
}
|
|
|
|
wantHash, err := findFileHash(sumsBuf, archive)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !bytes.Equal(hash, wantHash) {
|
|
return fmt.Errorf("archive hash mismatch: want %02x vs got %02x", wantHash, hash)
|
|
}
|
|
return nil
|
|
}
|