SystemSh0cker/gocsaf
1
0
Fork 0
mirror of https://github.com/gocsaf/csaf.git synced 2025-12-22 11:55:40 +01:00
Code Issues Releases Activity Actions

Add CLI flags to specify what hash is preferred

Browse source
This commit is contained in:
koplas 2024-09-09 10:25:13 +02:00
parent be2e4e7424
commit 37c9eaf346
No known key found for this signature in database
2 changed files with 34 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

50
cmd/csaf_downloader/downloader.go
View file

@ -53,7 +53,6 @@ type downloader struct {
const failedValidationDir = "failed_validation"
func newDownloader(cfg *config) (*downloader, error) {
var validator csaf.RemoteValidator
if cfg.RemoteValidator != "" {
@ -103,7 +102,6 @@ func logRedirect(req *http.Request, via []*http.Request) error {
}
func (d *downloader) httpClient() util.Client {
hClient := http.Client{}
if d.cfg.verbose() {
@ -253,7 +251,6 @@ func (d *downloader) downloadFiles(
label csaf.TLPLabel,
files []csaf.AdvisoryFile,
) error {
var (
advisoryCh = make(chan csaf.AdvisoryFile)
errorCh = make(chan error)
@ -303,7 +300,6 @@ func (d *downloader) loadOpenPGPKeys(
base *url.URL,
expr *util.PathEval,
) error {
src, err := expr.Eval("$.public_openpgp_keys", doc)
if err != nil {
// no keys.
@ -357,7 +353,6 @@ func (d *downloader) loadOpenPGPKeys(
defer res.Body.Close()
return crypto.NewKeyFromArmoredReader(res.Body)
}()
if err != nil {
slog.Warn(
"Reading public OpenPGP key failed",
@ -501,31 +496,35 @@ nextAdvisory:
signData []byte
)
// Only hash when we have a remote counterpart we can compare it with.
if remoteSHA256, s256Data, err = loadHash(client, file.SHA256URL()); err != nil {
if !file.IsDirectory() {
slog.Warn("Cannot fetch SHA256",
"url", file.SHA256URL(),
"error", err)
if (d.cfg.PreferredHash != "sha512" || file.SHA512URL() == "") && file.SHA256URL() != "" {
// Only hash when we have a remote counterpart we can compare it with.
if remoteSHA256, s256Data, err = loadHash(client, file.SHA256URL()); err != nil {
if !file.IsDirectory() {
slog.Warn("Cannot fetch SHA256",
"url", file.SHA256URL(),
"error", err)
} else {
slog.Info("SHA256 not present", "file", file.URL())
}
} else {
slog.Info("SHA256 not present", "file", file.URL())
s256 = sha256.New()
writers = append(writers, s256)
}
} else {
s256 = sha256.New()
writers = append(writers, s256)
}
if remoteSHA512, s512Data, err = loadHash(client, file.SHA512URL()); err != nil {
if !file.IsDirectory() {
slog.Warn("Cannot fetch SHA512",
"url", file.SHA512URL(),
"error", err)
if (d.cfg.PreferredHash != "sha256" || file.SHA256URL() == "") && file.SHA512URL() != "" {
if remoteSHA512, s512Data, err = loadHash(client, file.SHA512URL()); err != nil {
if !file.IsDirectory() {
slog.Warn("Cannot fetch SHA512",
"url", file.SHA512URL(),
"error", err)
} else {
slog.Info("SHA512 not present", "file", file.URL())
}
} else {
slog.Info("SHA512 not present", "file", file.URL())
s512 = sha512.New()
writers = append(writers, s512)
}
} else {
s512 = sha512.New()
writers = append(writers, s512)
}
// Remember the data as we need to store it to file later.
@ -757,9 +756,6 @@ func loadSignature(client util.Client, p string) (*crypto.PGPSignature, []byte,
}
func loadHash(client util.Client, p string) ([]byte, []byte, error) {
if p == "" {
return nil, nil, fmt.Errorf("no hash path provided")
}
resp, err := client.Get(p)
if err != nil {
return nil, nil, err