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Pull request 1912: 5896-safe-browsing-ptr

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Updates #5896.

Squashed commit of the following:

commit 49340544a2a8762283397cdb54b91ed534591fa0
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Jul 10 17:59:45 2023 +0300

    hashprefix: fix loop pointer
This commit is contained in:
Ainar Garipov 2023-07-10 19:04:31 +03:00
parent 7b92d53b84
commit c02a14117d
2 changed files with 13 additions and 11 deletions
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22
internal/filtering/hashprefix/cache.go
View File

@ -47,7 +47,7 @@ func fromCacheItem(item *cacheItem) (data []byte) {
data = binary.BigEndian.AppendUint64(data, uint64(expiry))
for _, v := range item.hashes {
// nolint:looppointer // The subsilce is used for a copy.
// nolint:looppointer // The subsilce of v is used for a copy.
data = append(data, v[:]...)
}
@ -63,7 +63,7 @@ func (c *Checker) findInCache(
i := 0
for _, hash := range hashes {
// nolint:looppointer // The subsilce is used for a safe cache lookup.
// nolint:looppointer // The has subsilce is used for a cache lookup.
data := c.cache.Get(hash[:prefixLen])
if data == nil {
hashes[i] = hash
@ -98,34 +98,36 @@ func (c *Checker) storeInCache(hashesToRequest, respHashes []hostnameHash) {
for _, hash := range respHashes {
var pref prefix
// nolint:looppointer // The subsilce is used for a copy.
// nolint:looppointer // The hash subsilce is used for a copy.
copy(pref[:], hash[:])
hashToStore[pref] = append(hashToStore[pref], hash)
}
for pref, hash := range hashToStore {
// nolint:looppointer // The subsilce is used for a safe cache lookup.
c.setCache(pref[:], hash)
c.setCache(pref, hash)
}
for _, hash := range hashesToRequest {
// nolint:looppointer // The subsilce is used for a safe cache lookup.
pref := hash[:prefixLen]
val := c.cache.Get(pref)
// nolint:looppointer // The hash subsilce is used for a cache lookup.
val := c.cache.Get(hash[:prefixLen])
if val == nil {
var pref prefix
// nolint:looppointer // The hash subsilce is used for a copy.
copy(pref[:], hash[:])
c.setCache(pref, nil)
}
}
}
// setCache stores hash in cache.
func (c *Checker) setCache(pref []byte, hashes []hostnameHash) {
func (c *Checker) setCache(pref prefix, hashes []hostnameHash) {
item := &cacheItem{
expiry: time.Now().Add(c.cacheTime),
hashes: hashes,
}
c.cache.Set(pref, fromCacheItem(item))
c.cache.Set(pref[:], fromCacheItem(item))
log.Debug("%s: stored in cache: %v", c.svc, pref)
}

2
internal/filtering/hashprefix/hashprefix.go
View File

@ -173,7 +173,7 @@ func (c *Checker) getQuestion(hashes []hostnameHash) (q string) {
b := &strings.Builder{}
for _, hash := range hashes {
// nolint:looppointer // The subsilce is used for safe hex encoding.
// nolint:looppointer // The hash subsilce is used for hex encoding.
stringutil.WriteToBuilder(b, hex.EncodeToString(hash[:prefixLen]), ".")
}