Merge: * dnsfilter: use fastcache instead of gcache
* commit 'd9265aa9a8c21d97206b0e43a03b448f2c33a510': fix tests * dnsfilter: use fastcache instead of gcache + config: add cache size settings
This commit is contained in:
Andrey Meshkov
commit
e09ec5d38e
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@ -5,8 +5,8 @@ import (
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"bytes"
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"context"
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"crypto/sha256"
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"encoding/gob"
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net"
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@ -16,6 +16,7 @@ import (
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"sync/atomic"
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"time"
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"github.com/VictoriaMetrics/fastcache"
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"github.com/joomcode/errorx"
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"github.com/AdguardTeam/dnsproxy/upstream"
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@ -26,7 +27,6 @@ import (
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"golang.org/x/net/publicsuffix"
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)
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const defaultCacheSize = 64 * 1024 // in number of elements
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const defaultCacheTime = 30 * time.Minute
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const defaultHTTPTimeout = 5 * time.Minute
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@ -56,6 +56,10 @@ type Config struct {
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SafeBrowsingEnabled bool `yaml:"safebrowsing_enabled"`
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ResolverAddress string // DNS server address
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SafeBrowsingCacheSize int `yaml:"safebrowsing_cache_size"`
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SafeSearchCacheSize int `yaml:"safesearch_cache_size"`
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ParentalCacheSize int `yaml:"parental_cache_size"`
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// Filtering callback function
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FilterHandler func(clientAddr string, settings *RequestFilteringSettings) `yaml:"-"`
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}
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@ -132,9 +136,9 @@ const (
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type dnsFilterContext struct {
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stats Stats
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dialCache gcache.Cache // "host" -> "IP" cache for safebrowsing and parental control servers
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safebrowsingCache gcache.Cache
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parentalCache gcache.Cache
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safeSearchCache gcache.Cache
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safebrowsingCache *fastcache.Cache
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parentalCache *fastcache.Cache
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safeSearchCache *fastcache.Cache
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}
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var gctx dnsFilterContext // global dnsfilter context
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@ -230,32 +234,33 @@ func (d *Dnsfilter) CheckHost(host string, qtype uint16, clientAddr string) (Res
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return Result{}, nil
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}
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func getCachedReason(cache gcache.Cache, host string) (result Result, isFound bool, err error) {
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func setCacheResult(cache *fastcache.Cache, host string, res Result) {
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var buf bytes.Buffer
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enc := gob.NewEncoder(&buf)
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_ = enc.Encode(res)
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cache.Set([]byte(host), buf.Bytes())
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log.Debug("Stored in cache %p: %s => [%d]", cache, host, buf.Len())
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}
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func getCachedResult(cache *fastcache.Cache, host string) (result Result, isFound bool) {
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isFound = false // not found yet
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// get raw value
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rawValue, err := cache.Get(host)
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if err == gcache.KeyNotFoundError {
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// not a real error, just not found
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err = nil
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return
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}
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if err != nil {
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// real error
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return
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rawValue := cache.Get(nil, []byte(host))
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if len(rawValue) == 0 {
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return Result{}, false
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}
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// since it can be something else, validate that it belongs to proper type
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cachedValue, ok := rawValue.(Result)
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if !ok {
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// this is not our type -- error
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text := "SHOULD NOT HAPPEN: entry with invalid type was found in lookup cache"
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log.Println(text)
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err = errors.New(text)
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return
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var buf bytes.Buffer
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buf.Write(rawValue)
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dec := gob.NewDecoder(&buf)
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cachedValue := Result{}
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err := dec.Decode(&cachedValue)
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if err != nil {
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log.Debug("gob.Decode(): %s", err)
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return Result{}, false
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}
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isFound = ok
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return cachedValue, isFound, err
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return cachedValue, true
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}
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// for each dot, hash it and add it to string
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@ -301,17 +306,13 @@ func (d *Dnsfilter) checkSafeSearch(host string) (Result, error) {
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}
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// Check cache. Return cached result if it was found
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cachedValue, isFound, err := getCachedReason(gctx.safeSearchCache, host)
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cachedValue, isFound := getCachedResult(gctx.safeSearchCache, host)
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if isFound {
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atomic.AddUint64(&gctx.stats.Safesearch.CacheHits, 1)
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log.Tracef("%s: found in SafeSearch cache", host)
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return cachedValue, nil
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}
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if err != nil {
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return Result{}, err
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}
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safeHost, ok := d.SafeSearchDomain(host)
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if !ok {
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return Result{}, nil
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@ -320,11 +321,7 @@ func (d *Dnsfilter) checkSafeSearch(host string) (Result, error) {
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res := Result{IsFiltered: true, Reason: FilteredSafeSearch}
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if ip := net.ParseIP(safeHost); ip != nil {
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res.IP = ip
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err = gctx.safeSearchCache.Set(host, res)
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if err != nil {
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return Result{}, nil
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}
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setCacheResult(gctx.safeSearchCache, host, res)
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return res, nil
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}
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@ -347,10 +344,7 @@ func (d *Dnsfilter) checkSafeSearch(host string) (Result, error) {
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}
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// Cache result
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err = gctx.safeSearchCache.Set(host, res)
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if err != nil {
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return Result{}, nil
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}
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setCacheResult(gctx.safeSearchCache, host, res)
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return res, nil
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}
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@ -453,20 +447,17 @@ type formatHandler func(hashparam string) string
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type bodyHandler func(body []byte, hashes map[string]bool) (Result, error)
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// real implementation of lookup/check
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func (d *Dnsfilter) lookupCommon(host string, lookupstats *LookupStats, cache gcache.Cache, hashparamNeedSlash bool, format formatHandler, handleBody bodyHandler) (Result, error) {
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func (d *Dnsfilter) lookupCommon(host string, lookupstats *LookupStats, cache *fastcache.Cache, hashparamNeedSlash bool, format formatHandler, handleBody bodyHandler) (Result, error) {
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// if host ends with a dot, trim it
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host = strings.ToLower(strings.Trim(host, "."))
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// check cache
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cachedValue, isFound, err := getCachedReason(cache, host)
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cachedValue, isFound := getCachedResult(cache, host)
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if isFound {
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atomic.AddUint64(&lookupstats.CacheHits, 1)
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log.Tracef("%s: found in the lookup cache", host)
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log.Tracef("%s: found in the lookup cache %p", host, cache)
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return cachedValue, nil
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}
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if err != nil {
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return Result{}, err
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}
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// convert hostname to hash parameters
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hashparam, hashes := hostnameToHashParam(host, hashparamNeedSlash)
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@ -499,10 +490,7 @@ func (d *Dnsfilter) lookupCommon(host string, lookupstats *LookupStats, cache gc
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switch {
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case resp.StatusCode == 204:
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// empty result, save cache
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err = cache.Set(host, Result{})
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if err != nil {
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return Result{}, err
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}
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setCacheResult(cache, host, Result{})
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return Result{}, nil
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case resp.StatusCode != 200:
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// error, don't save cache
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@ -515,10 +503,7 @@ func (d *Dnsfilter) lookupCommon(host string, lookupstats *LookupStats, cache gc
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return Result{}, err
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}
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err = cache.Set(host, result)
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if err != nil {
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return Result{}, err
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}
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setCacheResult(cache, host, result)
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return result, nil
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}
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@ -732,13 +717,13 @@ func New(c *Config, filters map[int]string) *Dnsfilter {
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if c != nil {
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// initialize objects only once
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if gctx.safebrowsingCache == nil {
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gctx.safebrowsingCache = gcache.New(defaultCacheSize).LRU().Expiration(defaultCacheTime).Build()
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gctx.safebrowsingCache = fastcache.New(c.SafeBrowsingCacheSize)
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}
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if gctx.safeSearchCache == nil {
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gctx.safeSearchCache = gcache.New(defaultCacheSize).LRU().Expiration(defaultCacheTime).Build()
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gctx.safeSearchCache = fastcache.New(c.SafeSearchCacheSize)
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}
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if gctx.parentalCache == nil {
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gctx.parentalCache = gcache.New(defaultCacheSize).LRU().Expiration(defaultCacheTime).Build()
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gctx.parentalCache = fastcache.New(c.ParentalCacheSize)
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}
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if len(c.ResolverAddress) != 0 && gctx.dialCache == nil {
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gctx.dialCache = gcache.New(maxDialCacheSize).LRU().Expiration(defaultCacheTime).Build()
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@ -26,13 +26,13 @@ import (
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func purgeCaches() {
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if gctx.safebrowsingCache != nil {
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gctx.safebrowsingCache.Purge()
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gctx.safebrowsingCache.Reset()
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}
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if gctx.parentalCache != nil {
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gctx.parentalCache.Purge()
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gctx.parentalCache.Reset()
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}
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if gctx.safeSearchCache != nil {
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gctx.safeSearchCache.Purge()
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gctx.safeSearchCache.Reset()
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}
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}
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@ -44,6 +44,11 @@ func _Func() string {
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}
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func NewForTest(c *Config, filters map[int]string) *Dnsfilter {
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if c != nil {
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c.SafeBrowsingCacheSize = 1024
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c.SafeSearchCacheSize = 1024
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c.ParentalCacheSize = 1024
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}
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d := New(c, filters)
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purgeCaches()
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return d
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@ -269,11 +274,7 @@ func TestSafeSearchCacheYandex(t *testing.T) {
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}
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// Check cache
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cachedValue, isFound, err := getCachedReason(gctx.safeSearchCache, domain)
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if err != nil {
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t.Fatalf("An error occured during cache search for %s: %s", domain, err)
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}
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cachedValue, isFound := getCachedResult(gctx.safeSearchCache, domain)
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if !isFound {
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t.Fatalf("Safesearch cache doesn't work for %s!", domain)
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@ -330,11 +331,7 @@ func TestSafeSearchCacheGoogle(t *testing.T) {
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}
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// Check cache
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cachedValue, isFound, err := getCachedReason(gctx.safeSearchCache, domain)
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if err != nil {
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t.Fatalf("An error occured during cache search for %s: %s", domain, err)
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}
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cachedValue, isFound := getCachedResult(gctx.safeSearchCache, domain)
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if !isFound {
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t.Fatalf("Safesearch cache doesn't work for %s!", domain)
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@ -458,6 +458,10 @@ func createTestServer(t *testing.T) *Server {
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s.conf.FilteringConfig.SafeBrowsingEnabled = true
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s.conf.Filters = make([]dnsfilter.Filter, 0)
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s.conf.SafeBrowsingCacheSize = 1024
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s.conf.SafeSearchCacheSize = 1024
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s.conf.ParentalCacheSize = 1024
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rules := "||nxdomain.example.org^\n||null.example.org^\n127.0.0.1 host.example.org\n"
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filter := dnsfilter.Filter{ID: 0, Data: []byte(rules)}
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s.conf.Filters = append(s.conf.Filters, filter)
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1
go.mod
1
go.mod
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@ -7,6 +7,7 @@ require (
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github.com/AdguardTeam/golibs v0.1.3
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github.com/AdguardTeam/urlfilter v0.4.1
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github.com/NYTimes/gziphandler v1.1.1
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github.com/VictoriaMetrics/fastcache v1.5.1
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github.com/bluele/gcache v0.0.0-20190203144525-2016d595ccb0
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github.com/go-test/deep v1.0.1
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github.com/gobuffalo/packr v1.19.0
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|
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16
go.sum
16
go.sum
|
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@ -9,12 +9,19 @@ github.com/AdguardTeam/urlfilter v0.4.1 h1:fuQLSEAk8A0zKroLtfvUgWvVnyBmOwK9uAjtI
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github.com/AdguardTeam/urlfilter v0.4.1/go.mod h1:6YehXZ8e0Hx2MvqeQWLFom6IkPinm04tNhO1CkwAxmg=
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github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
|
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github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
|
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github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
|
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github.com/OneOfOne/xxhash v1.2.5 h1:zl/OfRA6nftbBK9qTohYBJ5xvw6C/oNKizR7cZGl3cI=
|
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github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
|
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github.com/StackExchange/wmi v0.0.0-20181212234831-e0a55b97c705 h1:UUppSQnhf4Yc6xGxSkoQpPhb7RVzuv5Nb1mwJ5VId9s=
|
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github.com/StackExchange/wmi v0.0.0-20181212234831-e0a55b97c705/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
|
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github.com/VictoriaMetrics/fastcache v1.5.1 h1:qHgHjyoNFV7jgucU8QZUuU4gcdhfs8QW1kw68OD2Lag=
|
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github.com/VictoriaMetrics/fastcache v1.5.1/go.mod h1:+jv9Ckb+za/P1ZRg/sulP5Ni1v49daAVERr0H3CuscE=
|
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github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da h1:KjTM2ks9d14ZYCvmHS9iAKVt9AyzRSqNU1qabPih5BY=
|
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github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da/go.mod h1:eHEWzANqSiWQsof+nXEI9bUVUyV6F53Fp89EuCh2EAA=
|
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github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635 h1:52m0LGchQBBVqJRyYYufQuIbVqRawmubW3OFGqK1ekw=
|
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github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635/go.mod h1:lmLxL+FV291OopO93Bwf9fQLQeLyt33VJRUg5VJ30us=
|
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github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
|
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github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
|
||||
github.com/ameshkov/dnscrypt v1.0.7 h1:7LS9wiC/6c00H3ZdZOlwQSYGTJvs12g5ui9D1VSZ2aQ=
|
||||
github.com/ameshkov/dnscrypt v1.0.7/go.mod h1:rA74ASZ0j4JqPWaiN64hN97QXJ/zu5Kb2xgn295VzWQ=
|
||||
github.com/ameshkov/dnsstamps v1.0.1 h1:LhGvgWDzhNJh+kBQd/AfUlq1vfVe109huiXw4JhnPug=
|
||||
|
|
@ -26,6 +33,10 @@ github.com/beefsack/go-rate v0.0.0-20180408011153-efa7637bb9b6 h1:KXlsf+qt/X5ttP
|
|||
github.com/beefsack/go-rate v0.0.0-20180408011153-efa7637bb9b6/go.mod h1:6YNgTHLutezwnBvyneBbwvB8C82y3dcoOj5EQJIdGXA=
|
||||
github.com/bluele/gcache v0.0.0-20190203144525-2016d595ccb0 h1:vUdUwmQLnT/yuk8PsDhhMVkrfr4aMdcv/0GWzIqOjEY=
|
||||
github.com/bluele/gcache v0.0.0-20190203144525-2016d595ccb0/go.mod h1:8c4/i2VlovMO2gBnHGQPN5EJw+H0lx1u/5p+cgsXtCk=
|
||||
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
|
||||
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
|
||||
github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18 h1:pl4eWIqvFe/Kg3zkn7NxevNzILnZYWDCG7qbA1CJik0=
|
||||
github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18/go.mod h1:HD5P3vAIAh+Y2GAxg0PrPN1P8WkepXGpjbUPDHJqqKM=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
|
|
@ -39,6 +50,8 @@ github.com/gobuffalo/packd v0.0.0-20181031195726-c82734870264 h1:roWyi0eEdiFreSq
|
|||
github.com/gobuffalo/packd v0.0.0-20181031195726-c82734870264/go.mod h1:Yf2toFaISlyQrr5TfO3h6DB9pl9mZRmyvBGQb/aQ/pI=
|
||||
github.com/gobuffalo/packr v1.19.0 h1:3UDmBDxesCOPF8iZdMDBBWKfkBoYujIMIZePnobqIUI=
|
||||
github.com/gobuffalo/packr v1.19.0/go.mod h1:MstrNkfCQhd5o+Ct4IJ0skWlxN8emOq8DsoT1G98VIU=
|
||||
github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
|
||||
github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
|
||||
github.com/google/pprof v0.0.0-20190309163659-77426154d546/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
|
||||
github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
|
||||
github.com/inconshreveable/go-vhost v0.0.0-20160627193104-06d84117953b/go.mod h1:aA6DnFhALT3zH0y+A39we+zbrdMC2N0X/q21e6FI0LU=
|
||||
|
|
@ -72,6 +85,9 @@ github.com/shirou/gopsutil v2.18.12+incompatible h1:1eaJvGomDnH74/5cF4CTmTbLHAri
|
|||
github.com/shirou/gopsutil v2.18.12+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
|
||||
github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4 h1:udFKJ0aHUL60LboW/A+DfgoHVedieIzIXE8uylPue0U=
|
||||
github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4/go.mod h1:qsXQc7+bwAM3Q1u/4XEfrquwF8Lw7D7y5cD8CuHnfIc=
|
||||
github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
|
||||
github.com/spaolacci/murmur3 v1.0.1-0.20190317074736-539464a789e9 h1:5Cp3cVwpQP4aCQ6jx6dNLP3IarbYiuStmIzYu+BjQwY=
|
||||
github.com/spaolacci/murmur3 v1.0.1-0.20190317074736-539464a789e9/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
|
||||
github.com/sparrc/go-ping v0.0.0-20181106165434-ef3ab45e41b0 h1:mu7brOsdaH5Dqf93vdch+mr/0To8Sgc+yInt/jE/RJM=
|
||||
github.com/sparrc/go-ping v0.0.0-20181106165434-ef3ab45e41b0/go.mod h1:eMyUVp6f/5jnzM+3zahzl7q6UXLbgSc3MKg/+ow9QW0=
|
||||
github.com/spf13/cobra v0.0.3 h1:ZlrZ4XsMRm04Fr5pSFxBgfND2EBVa1nLpiy1stUsX/8=
|
||||
|
|
|
|||
|
|
@ -205,6 +205,10 @@ func initConfig() {
|
|||
// also change the default config
|
||||
config.DNS.UpstreamDNS = defaultDNS
|
||||
}
|
||||
|
||||
config.DNS.SafeBrowsingCacheSize = 64 * 1024
|
||||
config.DNS.SafeSearchCacheSize = 64 * 1024
|
||||
config.DNS.ParentalCacheSize = 64 * 1024
|
||||
}
|
||||
|
||||
// getConfigFilename returns path to the current config file
|
||||
|
|
|
|||
Loading…
Reference in New Issue