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Pull request 1795: 5661-imp-querylog-logging

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Updates #5661.

Squashed commit of the following:

commit 3fac63fb4ac906e61f6bb2d2af5408771d93a206
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Mar 31 17:24:00 2023 +0300

    querylog: imp locks even more

commit bf14ab9a5ea1be83ac156dc5f3d7f3717d50767b
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Mar 31 17:09:25 2023 +0300

    querylog: imp locks more

commit 40e885f39b4c38dcd387d4799529b0fa150ed520
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Mar 31 16:26:15 2023 +0300

    querylog: imp locks, logs
This commit is contained in:
Ainar Garipov 2023-03-31 17:39:04 +03:00
parent 2eb3bf6ea5
commit 1731ce9c63
8 changed files with 125 additions and 89 deletions
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10
CHANGELOG.md
View file

@ -31,7 +31,7 @@ NOTE: Add new changes BELOW THIS COMMENT.
is described in `openapi/openapi.yaml`. The duration of this pause could
also be set with the config field `protection_disabled_until` in `dns`
section of the YAML configuration file.
- Ability to create a static DHCP lease from a dynamic one more easily
- The ability to create a static DHCP lease from a dynamic one more easily
([#3459]).
- Two new HTTP APIs, `PUT /control/stats/config/update` and `GET
control/stats/config`, which can be used to set and receive the query log
@ -103,10 +103,10 @@ In this release, the schema version has changed from 17 to 20.
- The `POST /control/safesearch/disable` HTTP API is deprecated. Use the new
`PUT /control/safesearch/settings` API
- The `safesearch_enabled` field is deprecated in the following HTTP APIs:
- `GET /control/clients`
- `POST /control/clients/add`
- `POST /control/clients/update`
- `GET /control/clients/find?ip0=...&ip1=...&ip2=...`
- `GET /control/clients`;
- `POST /control/clients/add`;
- `POST /control/clients/update`;
- `GET /control/clients/find?ip0=...&ip1=...&ip2=...`.
Check `openapi/openapi.yaml` for more details.
- The `GET /control/stats_info` HTTP API; use the new `GET

4
go.mod
View file

@ -63,7 +63,3 @@ require (
golang.org/x/text v0.8.0 // indirect
golang.org/x/tools v0.7.0 // indirect
)
// TODO(a.garipov): Remove this and update github.com/ameshkov/dnscrypt when
// it's released.
replace github.com/ameshkov/dnscrypt/v2 => github.com/ainar-g/dnscrypt/v2 v2.0.1-0.20230315131826-cdb2bf61bda8

4
go.sum
View file

@ -15,8 +15,8 @@ github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da h1:KjTM2ks9d14ZYCvmH
github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da/go.mod h1:eHEWzANqSiWQsof+nXEI9bUVUyV6F53Fp89EuCh2EAA=
github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635 h1:52m0LGchQBBVqJRyYYufQuIbVqRawmubW3OFGqK1ekw=
github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635/go.mod h1:lmLxL+FV291OopO93Bwf9fQLQeLyt33VJRUg5VJ30us=
github.com/ainar-g/dnscrypt/v2 v2.0.1-0.20230315131826-cdb2bf61bda8 h1:jc3/aOQ01Yy3vxB/uqcuUi4F+6E/FKWaTCHq5J1ef2o=
github.com/ainar-g/dnscrypt/v2 v2.0.1-0.20230315131826-cdb2bf61bda8/go.mod h1:qPWhwz6FdSmuK7W4sMyvogrez4MWdtzosdqlr0Rg3ow=
github.com/ameshkov/dnscrypt/v2 v2.2.6 h1:rE7AFbPWebq7me7RVS66Cipd1m7ef1yf2+C8QzjQXXE=
github.com/ameshkov/dnscrypt/v2 v2.2.6/go.mod h1:qPWhwz6FdSmuK7W4sMyvogrez4MWdtzosdqlr0Rg3ow=
github.com/ameshkov/dnsstamps v1.0.3 h1:Srzik+J9mivH1alRACTbys2xOxs0lRH9qnTA7Y1OYVo=
github.com/ameshkov/dnsstamps v1.0.3/go.mod h1:Ii3eUu73dx4Vw5O4wjzmT5+lkCwovjzaEZZ4gKyIH5A=
github.com/beefsack/go-rate v0.0.0-20220214233405-116f4ca011a0 h1:0b2vaepXIfMsG++IsjHiI2p4bxALD1Y2nQKGMR5zDQM=

78
internal/querylog/http.go
View file

@ -60,41 +60,48 @@ type getConfigResp struct {
// Register web handlers
func (l *queryLog) initWeb() {
l.conf.HTTPRegister(http.MethodGet, "/control/querylog", l.handleQueryLog)
l.conf.HTTPRegister(http.MethodGet, "/control/querylog_info", l.handleQueryLogInfo)
l.conf.HTTPRegister(http.MethodPost, "/control/querylog_clear", l.handleQueryLogClear)
l.conf.HTTPRegister(http.MethodPost, "/control/querylog_config", l.handleQueryLogConfig)
l.conf.HTTPRegister(http.MethodGet, "/control/querylog/config", l.handleGetQueryLogConfig)
l.conf.HTTPRegister(
http.MethodPut,
"/control/querylog/config/update",
l.handlePutQueryLogConfig,
)
// Deprecated handlers.
l.conf.HTTPRegister(http.MethodGet, "/control/querylog_info", l.handleQueryLogInfo)
l.conf.HTTPRegister(http.MethodPost, "/control/querylog_config", l.handleQueryLogConfig)
}
// handleQueryLog is the handler for the GET /control/querylog HTTP API.
func (l *queryLog) handleQueryLog(w http.ResponseWriter, r *http.Request) {
l.lock.Lock()
defer l.lock.Unlock()
params, err := l.parseSearchParams(r)
params, err := parseSearchParams(r)
if err != nil {
aghhttp.Error(r, w, http.StatusBadRequest, "failed to parse params: %s", err)
aghhttp.Error(r, w, http.StatusBadRequest, "parsing params: %s", err)
return
}
entries, oldest := l.search(params)
data := l.entriesToJSON(entries, oldest)
var resp map[string]any
func() {
l.lock.Lock()
defer l.lock.Unlock()
_ = aghhttp.WriteJSONResponse(w, r, data)
entries, oldest := l.search(params)
resp = l.entriesToJSON(entries, oldest)
}()
_ = aghhttp.WriteJSONResponse(w, r, resp)
}
// handleQueryLogClear is the handler for the POST /control/querylog/clear HTTP
// API.
func (l *queryLog) handleQueryLogClear(_ http.ResponseWriter, _ *http.Request) {
l.clear()
}
// handleQueryLogInfo handles requests to the GET /control/querylog_info
// endpoint.
// handleQueryLogInfo is the handler for the GET /control/querylog_info HTTP
// API.
//
// Deprecated: Remove it when migration to the new API is over.
func (l *queryLog) handleQueryLogInfo(w http.ResponseWriter, r *http.Request) {
@ -116,20 +123,25 @@ func (l *queryLog) handleQueryLogInfo(w http.ResponseWriter, r *http.Request) {
})
}
// handleGetQueryLogConfig handles requests to the GET /control/querylog/config
// endpoint.
// handleGetQueryLogConfig is the handler for the GET /control/querylog/config
// HTTP API.
func (l *queryLog) handleGetQueryLogConfig(w http.ResponseWriter, r *http.Request) {
l.lock.Lock()
defer l.lock.Unlock()
var resp *getConfigResp
func() {
l.lock.Lock()
defer l.lock.Unlock()
ignored := l.conf.Ignored.Values()
slices.Sort(ignored)
_ = aghhttp.WriteJSONResponse(w, r, getConfigResp{
Ignored: ignored,
Interval: float64(l.conf.RotationIvl.Milliseconds()),
Enabled: aghalg.BoolToNullBool(l.conf.Enabled),
AnonymizeClientIP: aghalg.BoolToNullBool(l.conf.AnonymizeClientIP),
})
resp = &getConfigResp{
Interval: float64(l.conf.RotationIvl.Milliseconds()),
Enabled: aghalg.BoolToNullBool(l.conf.Enabled),
AnonymizeClientIP: aghalg.BoolToNullBool(l.conf.AnonymizeClientIP),
Ignored: l.conf.Ignored.Values(),
}
slices.Sort(resp.Ignored)
}()
_ = aghhttp.WriteJSONResponse(w, r, resp)
}
// AnonymizeIP masks ip to anonymize the client if the ip is a valid one.
@ -146,7 +158,8 @@ func AnonymizeIP(ip net.IP) {
}
}
// handleQueryLogConfig handles the POST /control/querylog_config queries.
// handleQueryLogConfig is the handler for the POST /control/querylog_config
// HTTP API.
//
// Deprecated: Remove it when migration to the new API is over.
func (l *queryLog) handleQueryLogConfig(w http.ResponseWriter, r *http.Request) {
@ -198,8 +211,8 @@ func (l *queryLog) handleQueryLogConfig(w http.ResponseWriter, r *http.Request)
l.conf = &conf
}
// handlePutQueryLogConfig handles the PUT /control/querylog/config/update
// queries.
// handlePutQueryLogConfig is the handler for the PUT
// /control/querylog/config/update HTTP API.
func (l *queryLog) handlePutQueryLogConfig(w http.ResponseWriter, r *http.Request) {
newConf := &getConfigResp{}
err := json.NewDecoder(r.Body).Decode(newConf)
@ -268,7 +281,7 @@ func getDoubleQuotesEnclosedValue(s *string) bool {
}
// parseSearchCriterion parses a search criterion from the query parameter.
func (l *queryLog) parseSearchCriterion(q url.Values, name string, ct criterionType) (
func parseSearchCriterion(q url.Values, name string, ct criterionType) (
ok bool,
sc searchCriterion,
err error,
@ -317,8 +330,9 @@ func (l *queryLog) parseSearchCriterion(q url.Values, name string, ct criterionT
return true, sc, nil
}
// parseSearchParams - parses "searchParams" from the HTTP request's query string
func (l *queryLog) parseSearchParams(r *http.Request) (p *searchParams, err error) {
// parseSearchParams parses search parameters from the HTTP request's query
// string.
func parseSearchParams(r *http.Request) (p *searchParams, err error) {
p = newSearchParams()
q := r.URL.Query()
@ -356,7 +370,7 @@ func (l *queryLog) parseSearchParams(r *http.Request) (p *searchParams, err erro
}} {
var ok bool
var c searchCriterion
ok, c, err = l.parseSearchCriterion(q, v.urlField, v.ct)
ok, c, err = parseSearchCriterion(q, v.urlField, v.ct)
if err != nil {
return nil, err
}

49
internal/querylog/qlog.go
View file

@ -155,10 +155,13 @@ func (l *queryLog) clear() {
l.fileFlushLock.Lock()
defer l.fileFlushLock.Unlock()
l.bufferLock.Lock()
l.buffer = nil
l.flushPending = false
l.bufferLock.Unlock()
func() {
l.bufferLock.Lock()
defer l.bufferLock.Unlock()
l.buffer = nil
l.flushPending = false
}()
oldLogFile := l.logFile + ".1"
err := os.Remove(oldLogFile)
@ -241,26 +244,30 @@ func (l *queryLog) Add(params *AddParams) {
entry.OrigAnswer = a
}
l.bufferLock.Lock()
l.buffer = append(l.buffer, &entry)
needFlush := false
func() {
l.bufferLock.Lock()
defer l.bufferLock.Unlock()
if !l.conf.FileEnabled {
if len(l.buffer) > int(l.conf.MemSize) {
// writing to file is disabled - just remove the oldest entry from array
//
// TODO(a.garipov): This should be replaced by a proper ring buffer,
// but it's currently difficult to do that.
l.buffer[0] = nil
l.buffer = l.buffer[1:]
l.buffer = append(l.buffer, &entry)
if !l.conf.FileEnabled {
if len(l.buffer) > int(l.conf.MemSize) {
// Writing to file is disabled, so just remove the oldest entry
// from the slices.
//
// TODO(a.garipov): This should be replaced by a proper ring
// buffer, but it's currently difficult to do that.
l.buffer[0] = nil
l.buffer = l.buffer[1:]
}
} else if !l.flushPending {
needFlush = len(l.buffer) >= int(l.conf.MemSize)
if needFlush {
l.flushPending = true
}
}
} else if !l.flushPending {
needFlush = len(l.buffer) >= int(l.conf.MemSize)
if needFlush {
l.flushPending = true
}
}
l.bufferLock.Unlock()
}()
// if buffer needs to be flushed to disk, do it now
if needFlush {

1
internal/querylog/qlogreader.go
View file

@ -106,6 +106,7 @@ func (r *QLogReader) SeekStart() error {
r.currentFile = len(r.qFiles) - 1
_, err := r.qFiles[r.currentFile].SeekStart()
return err
}

40
internal/querylog/querylogfile.go
View file

@ -11,8 +11,9 @@ import (
"github.com/AdguardTeam/golibs/log"
)
// flushLogBuffer flushes the current buffer to file and resets the current buffer
func (l *queryLog) flushLogBuffer(fullFlush bool) error {
// flushLogBuffer flushes the current buffer to file and resets the current
// buffer.
func (l *queryLog) flushLogBuffer(fullFlush bool) (err error) {
if !l.conf.FileEnabled {
return nil
}
@ -20,31 +21,42 @@ func (l *queryLog) flushLogBuffer(fullFlush bool) error {
l.fileFlushLock.Lock()
defer l.fileFlushLock.Unlock()
// flush remainder to file
l.bufferLock.Lock()
needFlush := len(l.buffer) >= int(l.conf.MemSize)
if !needFlush && !fullFlush {
l.bufferLock.Unlock()
// Flush the remainder to file.
var flushBuffer []*logEntry
needFlush := fullFlush
func() {
l.bufferLock.Lock()
defer l.bufferLock.Unlock()
needFlush = needFlush || len(l.buffer) >= int(l.conf.MemSize)
if needFlush {
flushBuffer = l.buffer
l.buffer = nil
l.flushPending = false
}
}()
if !needFlush {
return nil
}
flushBuffer := l.buffer
l.buffer = nil
l.flushPending = false
l.bufferLock.Unlock()
err := l.flushToFile(flushBuffer)
err = l.flushToFile(flushBuffer)
if err != nil {
log.Error("Saving querylog to file failed: %s", err)
log.Error("querylog: writing to file: %s", err)
return err
}
return nil
}
// flushToFile saves the specified log entries to the query log file
func (l *queryLog) flushToFile(buffer []*logEntry) (err error) {
if len(buffer) == 0 {
log.Debug("querylog: there's nothing to write to a file")
log.Debug("querylog: nothing to write to a file")
return nil
}
start := time.Now()
var b bytes.Buffer

28
internal/querylog/search.go
View file

@ -76,15 +76,20 @@ func (l *queryLog) searchMemory(params *searchParams, cache clientCache) (entrie
// search - searches log entries in the query log using specified parameters
// returns the list of entries found + time of the oldest entry
func (l *queryLog) search(params *searchParams) (entries []*logEntry, oldest time.Time) {
now := time.Now()
start := time.Now()
if params.limit == 0 {
return []*logEntry{}, time.Time{}
}
cache := clientCache{}
fileEntries, oldest, total := l.searchFiles(params, cache)
memoryEntries, bufLen := l.searchMemory(params, cache)
log.Debug("querylog: got %d entries from memory", len(memoryEntries))
fileEntries, oldest, total := l.searchFiles(params, cache)
log.Debug("querylog: got %d entries from files", len(fileEntries))
total += bufLen
totalLimit := params.offset + params.limit
@ -123,7 +128,7 @@ func (l *queryLog) search(params *searchParams) (entries []*logEntry, oldest tim
len(entries),
total,
params.olderThan,
time.Since(now),
time.Since(start),
)
return entries, oldest
@ -145,13 +150,14 @@ func (l *queryLog) searchFiles(
r, err := NewQLogReader(files)
if err != nil {
log.Error("querylog: failed to open qlog reader: %s", err)
log.Error("querylog: opening qlog reader: %s", err)
return entries, oldest, 0
}
defer func() {
derr := r.Close()
if derr != nil {
closeErr := r.Close()
if closeErr != nil {
log.Error("querylog: closing file: %s", err)
}
}()
@ -161,8 +167,8 @@ func (l *queryLog) searchFiles(
} else {
err = r.seekTS(params.olderThan.UnixNano())
if err == nil {
// Read to the next record, because we only need the one
// that goes after it.
// Read to the next record, because we only need the one that goes
// after it.
_, err = r.ReadNext()
}
}
@ -176,9 +182,9 @@ func (l *queryLog) searchFiles(
totalLimit := params.offset + params.limit
oldestNano := int64(0)
// By default, we do not scan more than maxFileScanEntries at once.
// The idea is to make search calls faster so that the UI could handle
// it and show something quicker. This behavior can be overridden if
// By default, we do not scan more than maxFileScanEntries at once. The
// idea is to make search calls faster so that the UI could handle it and
// show something quicker. This behavior can be overridden if
// maxFileScanEntries is set to 0.
for total < params.maxFileScanEntries || params.maxFileScanEntries <= 0 {
var e *logEntry