miracle091/dnscrypt-proxy
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dnscrypt-proxy
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Code Issues Releases Wiki Activity

Simplify updateCache()

This commit is contained in:
Frank Denis 2023-04-07 16:18:50 +02:00
parent ea3625bcfd
commit 9c73ab3070
1 changed files with 16 additions and 9 deletions
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25
dnscrypt-proxy/sources.go
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@ -98,17 +98,24 @@ func writeSource(f string, bin, sig []byte) (err error) {
return fSig.Commit()
}
func (source *Source) updateCache(bin, sig []byte, now time.Time) {
func (source *Source) updateCache(bin, sig []byte, now time.Time) error {
f := source.cacheFile
var writeErr error // an error writing cache isn't fatal
if !bytes.Equal(source.bin, bin) {
if writeErr = writeSource(f, bin, sig); writeErr != nil {
source.bin = bin
return
}
// If the data and signature are unchanged, update the files timestamps only
if bytes.Equal(source.bin, bin) {
_ = os.Chtimes(f, now, now)
_ = os.Chtimes(f+".minisig", now, now)
return nil
}
os.Chtimes(f, now, now)
source.bin = bin
// Otherwise, write the new data and signature
if err := writeSource(f, bin, sig); err != nil {
dlog.Warnf("Source [%s] failed to update cache file [%s]: %v", source.name, f, err)
return err
}
source.bin = bin // In-memory copy of the cache file content
// The tests require the timestamps to be updated, no idea why
_ = os.Chtimes(f, now, now)
_ = os.Chtimes(f+".minisig", now, now)
return nil
}
func (source *Source) parseURLs(urls []string) {