修复无法添加IP到本地防火墙的问题

LICENSE

@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2020, LiuXiangChao
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

@@ -0,0 +1 @@
+GoEdge边缘节点源码

build/build.sh

@@ -3,28 +3,31 @@
 function build() {
 	ROOT=$(dirname $0)
 	NAME="edge-node"
-	VERSION=$(lookup-version $ROOT/../internal/const/const.go)
+	VERSION=$(lookup-version "$ROOT"/../internal/const/const.go)
 	DIST=$ROOT/"../dist/${NAME}"
 	MUSL_DIR="/usr/local/opt/musl-cross/bin"
+	GCC_X86_64_DIR="/usr/local/Cellar/x86_64-unknown-linux-gnu/10.3.0/bin"
+	GCC_ARM64_DIR="/usr/local/Cellar/aarch64-unknown-linux-gnu/10.3.0/bin"
+
 	OS=${1}
 	ARCH=${2}
 	TAG=${3}
 
-	if [ -z $OS ]; then
+	if [ -z "$OS" ]; then
 		echo "usage: build.sh OS ARCH"
 		exit
 	fi
-	if [ -z $ARCH ]; then
+	if [ -z "$ARCH" ]; then
 		echo "usage: build.sh OS ARCH"
 		exit
 	fi
-	if [ -z $TAG ]; then
+	if [ -z "$TAG" ]; then
 		TAG="community"
 	fi
 
 	echo "checking ..."
 	ZIP_PATH=$(which zip)
-	if [ -z $ZIP_PATH ]; then
+	if [ -z "$ZIP_PATH" ]; then
 		echo "we need 'zip' command to compress files"
 		exit
 	fi
@@ -33,42 +36,66 @@ function build() {
 	ZIP="${NAME}-${OS}-${ARCH}-${TAG}-v${VERSION}.zip"
 
 	echo "copying ..."
-	if [ ! -d $DIST ]; then
-		mkdir $DIST
-		mkdir $DIST/bin
-		mkdir $DIST/configs
-		mkdir $DIST/logs
-		mkdir $DIST/data
+	if [ ! -d "$DIST" ]; then
+		mkdir "$DIST"
+		mkdir "$DIST"/bin
+		mkdir "$DIST"/configs
+		mkdir "$DIST"/logs
+		mkdir "$DIST"/data
+
+		if [ "$TAG" = "plus" ]; then
+			mkdir "$DIST"/scripts
+			mkdir "$DIST"/scripts/js
+		fi
 	fi
 
-	cp $ROOT/configs/api.template.yaml $DIST/configs
-	cp -R $ROOT/www $DIST/
-	cp -R $ROOT/pages $DIST/
-	cp -R $ROOT/resources $DIST/
+	cp "$ROOT"/configs/api.template.yaml "$DIST"/configs
+	cp -R "$ROOT"/www "$DIST"/
+	cp -R "$ROOT"/pages "$DIST"/
 
 	# we support TOA on linux/amd64 only
-	if [ $OS == "linux" -a $ARCH == "amd64" ]
+	if [ "$OS" == "linux" -a "$ARCH" == "amd64" ]
 	then
-		cp -R $ROOT/edge-toa $DIST
+		cp -R "$ROOT"/edge-toa "$DIST"
 	fi
 
 	echo "building ..."
 
 	CC_PATH=""
 	CXX_PATH=""
+	BUILD_TAG=$TAG
 	if [[ `uname -a` == *"Darwin"* && "${OS}" == "linux" ]]; then
-		# /usr/local/opt/musl-cross/bin/
 		if [ "${ARCH}" == "amd64" ]; then
-			CC_PATH="x86_64-linux-musl-gcc"
-			CXX_PATH="x86_64-linux-musl-g++"
+			# build with script support
+			if [ -d $GCC_X86_64_DIR ]; then
+				MUSL_DIR=$GCC_X86_64_DIR
+				CC_PATH="x86_64-unknown-linux-gnu-gcc"
+				CXX_PATH="x86_64-unknown-linux-gnu-g++"
+				if [ "$TAG" = "plus" ]; then
+					BUILD_TAG="plus,script"
+				fi
+			else
+				CC_PATH="x86_64-linux-musl-gcc"
+				CXX_PATH="x86_64-linux-musl-g++"
+			fi
 		fi
 		if [ "${ARCH}" == "386" ]; then
 			CC_PATH="i486-linux-musl-gcc"
 			CXX_PATH="i486-linux-musl-g++"
 		fi
 		if [ "${ARCH}" == "arm64" ]; then
-			CC_PATH="aarch64-linux-musl-gcc"
-			CXX_PATH="aarch64-linux-musl-g++"
+			# build with script support
+			if [ -d $GCC_ARM64_DIR ]; then
+				MUSL_DIR=$GCC_ARM64_DIR
+				CC_PATH="aarch64-unknown-linux-gnu-gcc"
+				CXX_PATH="aarch64-unknown-linux-gnu-g++"
+				if [ "$TAG" = "plus" ]; then
+					BUILD_TAG="plus,script"
+				fi
+			else
+				CC_PATH="aarch64-linux-musl-gcc"
+				CXX_PATH="aarch64-linux-musl-g++"
+			fi
 		fi
 		if [ "${ARCH}" == "arm" ]; then
 			CC_PATH="arm-linux-musleabi-gcc"
@@ -84,14 +111,14 @@ function build() {
 		fi
 	fi
 	if [ ! -z $CC_PATH ]; then
-		env CC=$MUSL_DIR/$CC_PATH CXX=$MUSL_DIR/$CXX_PATH GOOS=${OS} GOARCH=${ARCH} CGO_ENABLED=1 go build -tags $TAG -o $DIST/bin/${NAME} -ldflags "-linkmode external -extldflags -static -s -w" $ROOT/../cmd/edge-node/main.go
+		env CC=$MUSL_DIR/$CC_PATH CXX=$MUSL_DIR/$CXX_PATH GOOS="${OS}" GOARCH="${ARCH}" CGO_ENABLED=1 go build -trimpath -tags $BUILD_TAG -o "$DIST"/bin/${NAME} -ldflags "-linkmode external -extldflags -static -s -w" "$ROOT"/../cmd/edge-node/main.go
 	else
-		env GOOS=${OS} GOARCH=${ARCH} CGO_ENABLED=1 go build -tags $TAG -o $DIST/bin/${NAME} -ldflags="-s -w" $ROOT/../cmd/edge-node/main.go
+		env GOOS="${OS}" GOARCH="${ARCH}" CGO_ENABLED=1 go build -trimpath -tags $TAG -o "$DIST"/bin/${NAME} -ldflags="-s -w" "$ROOT"/../cmd/edge-node/main.go
 	fi
 
 	# delete hidden files
-	find $DIST -name ".DS_Store" -delete
-	find $DIST -name ".gitignore" -delete
+	find "$DIST" -name ".DS_Store" -delete
+	find "$DIST" -name ".gitignore" -delete
 
 	echo "zip files"
 	cd "${DIST}/../" || exit
@@ -107,15 +134,15 @@ function build() {
 
 function lookup-version() {
 	FILE=$1
-	VERSION_DATA=$(cat $FILE)
+	VERSION_DATA=$(cat "$FILE")
 	re="Version[ ]+=[ ]+\"([0-9.]+)\""
 	if [[ $VERSION_DATA =~ $re ]]; then
 		VERSION=${BASH_REMATCH[1]}
-		echo $VERSION
+		echo "$VERSION"
 	else
 		echo "could not match version"
 		exit
 	fi
 }
 
-build $1 $2 $3
+build "$1" "$2" "$3"

cmd/edge-node/main.go

@@ -2,13 +2,17 @@ package main
 
 import (
 	"encoding/json"
+	"flag"
 	"fmt"
 	"github.com/TeaOSLab/EdgeNode/internal/apps"
 	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
 	"github.com/TeaOSLab/EdgeNode/internal/nodes"
 	_ "github.com/iwind/TeaGo/bootstrap"
 	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/maps"
+	"github.com/iwind/TeaGo/types"
 	"github.com/iwind/gosock/pkg/gosock"
+	"net"
 	"net/http"
 	_ "net/http/pprof"
 	"os"
@@ -16,10 +20,12 @@ import (
 )
 
 func main() {
-	app := apps.NewAppCmd().
+	var app = apps.NewAppCmd().
 		Version(teaconst.Version).
 		Product(teaconst.ProductName).
-		Usage(teaconst.ProcessName + " [-v|start|stop|restart|status|quit|test|service|daemon|pprof]")
+		Usage(teaconst.ProcessName + " [-v|start|stop|restart|status|quit|test|reload|service|daemon|pprof|accesslog]").
+		Usage(teaconst.ProcessName + " [trackers|goman|conns|gc]").
+		Usage(teaconst.ProcessName + " [ip.drop|ip.reject|ip.remove] IP")
 
 	app.On("test", func() {
 		err := nodes.NewNode().Test()
@@ -27,6 +33,20 @@ func main() {
 			_, _ = os.Stderr.WriteString(err.Error())
 		}
 	})
+	app.On("reload", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "reload"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var params = maps.NewMap(reply.Params)
+			if params.Has("error") {
+				fmt.Println("[ERROR]" + params.GetString("error"))
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
 	app.On("daemon", func() {
 		nodes.NewNode().Daemon()
 	})
@@ -48,18 +68,30 @@ func main() {
 		fmt.Println("done")
 	})
 	app.On("pprof", func() {
-		// TODO 自己指定端口
-		addr := "127.0.0.1:6060"
+		var flagSet = flag.NewFlagSet("pprof", flag.ExitOnError)
+		var addr string
+		flagSet.StringVar(&addr, "addr", "", "")
+		_ = flagSet.Parse(os.Args[2:])
+
+		if len(addr) == 0 {
+			addr = "127.0.0.1:6060"
+		}
 		logs.Println("starting with pprof '" + addr + "'...")
 
 		go func() {
 			err := http.ListenAndServe(addr, nil)
 			if err != nil {
-				logs.Println("[error]" + err.Error())
+				logs.Println("[ERROR]" + err.Error())
 			}
 		}()
 
-		node := nodes.NewNode()
+		var node = nodes.NewNode()
+		node.Start()
+	})
+	app.On("dbstat", func() {
+		teaconst.EnableDBStat = true
+
+		var node = nodes.NewNode()
 		node.Start()
 	})
 	app.On("trackers", func() {
@@ -117,8 +149,192 @@ func main() {
 			}
 		}
 	})
+	app.On("gc", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		_, err := sock.Send(&gosock.Command{Code: "gc"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			fmt.Println("ok")
+		}
+	})
+	app.On("ip.drop", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.drop IP [--timeout=SECONDS] [--async]")
+			return
+		}
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
+			return
+		}
+		var timeoutSeconds = 0
+		var options = app.ParseOptions(args[1:])
+		timeout, ok := options["timeout"]
+		if ok {
+			timeoutSeconds = types.Int(timeout[0])
+		}
+		var async = false
+		_, ok = options["async"]
+		if ok {
+			async = true
+		}
+
+		fmt.Println("drop ip '" + ip + "' for '" + types.String(timeoutSeconds) + "' seconds")
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "dropIP",
+			Params: map[string]interface{}{
+				"ip":             ip,
+				"timeoutSeconds": timeoutSeconds,
+				"async":          async,
+			},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("ip.reject", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.reject IP [--timeout=SECONDS]")
+			return
+		}
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
+			return
+		}
+		var timeoutSeconds = 0
+		var options = app.ParseOptions(args[1:])
+		timeout, ok := options["timeout"]
+		if ok {
+			timeoutSeconds = types.Int(timeout[0])
+		}
+
+		fmt.Println("reject ip '" + ip + "' for '" + types.String(timeoutSeconds) + "' seconds")
+
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "rejectIP",
+			Params: map[string]interface{}{
+				"ip":             ip,
+				"timeoutSeconds": timeoutSeconds,
+			},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("ip.remove", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.remove IP")
+			return
+		}
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
+			return
+		}
+
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "removeIP",
+			Params: map[string]interface{}{
+				"ip": ip,
+			},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("accesslog", func() {
+		// local sock
+		var tmpDir = os.TempDir()
+		var sockFile = tmpDir + "/" + teaconst.AccessLogSockName
+		_, err := os.Stat(sockFile)
+		if err != nil {
+			if !os.IsNotExist(err) {
+				fmt.Println("[ERROR]" + err.Error())
+				return
+			}
+		}
+
+		var processSock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := processSock.Send(&gosock.Command{
+			Code: "accesslog",
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+		if reply.Code == "error" {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+				return
+			}
+		}
+
+		conn, err := net.Dial("unix", sockFile)
+		if err != nil {
+			fmt.Println("[ERROR]start reading access log failed: " + err.Error())
+			return
+		}
+		defer func() {
+			_ = conn.Close()
+		}()
+		var buf = make([]byte, 1024)
+		for {
+			n, err := conn.Read(buf)
+			if n > 0 {
+				fmt.Print(string(buf[:n]))
+			}
+			if err != nil {
+				break
+			}
+		}
+	})
+	app.On("bandwidth", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "bandwidth"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+		var statsMap = maps.NewMap(reply.Params).Get("stats")
+		statsJSON, err := json.MarshalIndent(statsMap, "", "  ")
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+		fmt.Println(string(statsJSON))
+	})
 	app.Run(func() {
-		node := nodes.NewNode()
+		var node = nodes.NewNode()
 		node.Start()
 	})
 }

dist/.gitignore

@@ -1 +1,2 @@
-*.zip
+*.zip
+edge-node

go.mod

@@ -1,35 +1,64 @@
 module github.com/TeaOSLab/EdgeNode
 
-go 1.15
+go 1.18
 
-replace github.com/TeaOSLab/EdgeCommon => ../EdgeCommon
+replace (
+	github.com/TeaOSLab/EdgeCommon => ../EdgeCommon
+	github.com/fsnotify/fsnotify => github.com/iwind/fsnotify v1.5.2-0.20220817040843-193be2051ff4
+)
 
 require (
 	github.com/TeaOSLab/EdgeCommon v0.0.0-00010101000000-000000000000
-	github.com/andybalholm/brotli v1.0.3
+	github.com/andybalholm/brotli v1.0.4
 	github.com/biessek/golang-ico v0.0.0-20180326222316-d348d9ea4670
 	github.com/cespare/xxhash v1.1.0
-	github.com/chai2010/webp v1.1.0 // indirect
 	github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f
-	github.com/dop251/goja v0.0.0-20210804101310-32956a348b49
-	github.com/go-yaml/yaml v2.1.0+incompatible
-	github.com/iwind/TeaGo v0.0.0-20211026123858-7de7a21cad24
+	github.com/fsnotify/fsnotify v1.5.1
+	github.com/go-redis/redis/v8 v8.11.5
+	github.com/golang/protobuf v1.5.2
+	github.com/google/nftables v0.0.0-20220407195405-950e408d48c6
+	github.com/iwind/TeaGo v0.0.0-20220807030847-31de8e1cbe55
 	github.com/iwind/gofcgi v0.0.0-20210528023741-a92711d45f11
-	github.com/iwind/gosock v0.0.0-20210722083328-12b2d66abec3
-	github.com/iwind/gowebp v0.0.0-20211029040624-7331ecc78ed8
-	github.com/jsummers/gobmp v0.0.0-20151104160322-e2ba15ffa76e // indirect
+	github.com/iwind/gosock v0.0.0-20211103081026-ee4652210ca4
+	github.com/iwind/gowebp v0.0.0-20220819053541-c235395277b5
+	github.com/klauspost/compress v1.15.8
 	github.com/mattn/go-sqlite3 v1.14.9
+	github.com/mdlayher/netlink v1.4.2
 	github.com/miekg/dns v1.1.43
 	github.com/mssola/user_agent v0.5.3
 	github.com/pires/go-proxyproto v0.6.1
-	github.com/shirou/gopsutil v3.21.11+incompatible
-	github.com/tklauser/go-sysconf v0.3.6 // indirect
-	golang.org/x/image v0.0.0-20211028202545-6944b10bf410
-	golang.org/x/net v0.0.0-20211215060638-4ddde0e984e9
-	golang.org/x/sys v0.0.0-20211214234402-4825e8c3871d
+	github.com/shirou/gopsutil/v3 v3.22.2
+	golang.org/x/image v0.0.0-20220722155232-062f8c9fd539
+	golang.org/x/net v0.0.0-20220225172249-27dd8689420f
+	golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab
 	golang.org/x/text v0.3.7
-	golang.org/x/tools v0.1.3 // indirect
-	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
-	google.golang.org/grpc v1.43.0
-	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
+	google.golang.org/grpc v1.45.0
+	gopkg.in/yaml.v3 v3.0.1
+	rogchap.com/v8go v0.7.0
+)
+
+require (
+	github.com/BurntSushi/toml v0.4.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/chai2010/webp v1.1.1 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-sql-driver/mysql v1.5.0 // indirect
+	github.com/google/go-cmp v0.5.7 // indirect
+	github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 // indirect
+	github.com/jsummers/gobmp v0.0.0-20151104160322-e2ba15ffa76e // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/mdlayher/socket v0.0.0-20211102153432-57e3fa563ecb // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/tklauser/go-sysconf v0.3.9 // indirect
+	github.com/tklauser/numcpus v0.3.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	golang.org/x/mod v0.5.1 // indirect
+	golang.org/x/tools v0.1.8 // indirect
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	google.golang.org/genproto v0.0.0-20220317150908-0efb43f6373e // indirect
+	google.golang.org/protobuf v1.27.1 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	honnef.co/go/tools v0.2.2 // indirect
 )

go.sum

@@ -1,31 +1,29 @@
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@@ -35,33 +33,22 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
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 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
@@ -245,9 +273,10 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20200207183749-b753a1ba74fa/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
+golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
+golang.org/x/tools v0.1.8 h1:P1HhGGuLW4aAclzjtmJdf0mJOjVUZUzOTqkAkWL+l6w=
+golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -257,26 +286,18 @@ google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9Ywl
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20191009194640-548a555dbc03/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/genproto v0.0.0-20210617175327-b9e0b3197ced h1:c5geK1iMU3cDKtFrCVQIcjR3W+JOZMuhIyICMCTbtus=
-google.golang.org/genproto v0.0.0-20210617175327-b9e0b3197ced/go.mod h1:SzzZ/N+nwJDaO1kznhnlzqS8ocJICar6hYhVyhi++24=
-google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa h1:I0YcKz0I7OAhddo7ya8kMnvprhcWM045PmkBdMO9zN0=
-google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
+google.golang.org/genproto v0.0.0-20220317150908-0efb43f6373e h1:fNKDNuUyC4WH+inqDMpfXDdfvwfYILbsX+oskGZ8hxg=
+google.golang.org/genproto v0.0.0-20220317150908-0efb43f6373e/go.mod h1:hAL49I2IFola2sVEjAn7MEwsja0xp51I0tlGAf9hz4E=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.32.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
-google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.43.0 h1:Eeu7bZtDZ2DpRCsLhUlcrLnvYaMK1Gz86a+hMVvELmM=
-google.golang.org/grpc v1.43.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
+google.golang.org/grpc v1.45.0 h1:NEpgUqV3Z+ZjkqMsxMg11IaDrXY4RY6CQukSGK0uI1M=
+google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -287,27 +308,23 @@ google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
-gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
-gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.2.1/go.mod h1:lPVVZ2BS5TfnjLyizF7o7hv7j9/L+8cZY2hLyjP9cGY=
+honnef.co/go/tools v0.2.2 h1:MNh1AVMyVX23VUHE2O27jm6lNj3vjO5DexS4A1xvnzk=
+honnef.co/go/tools v0.2.2/go.mod h1:lPVVZ2BS5TfnjLyizF7o7hv7j9/L+8cZY2hLyjP9cGY=
+rogchap.com/v8go v0.7.0 h1:kgjbiO4zE5itA962ze6Hqmbs4HgZbGzmueCXsZtremg=
+rogchap.com/v8go v0.7.0/go.mod h1:MxgP3pL2MW4dpme/72QRs8sgNMmM0pRc8DPhcuLWPAs=

internal/apps/app_cmd.go

@@ -11,6 +11,7 @@ import (
 	"os/exec"
 	"runtime"
 	"strconv"
+	"strings"
 	"syscall"
 	"time"
 )
@@ -19,7 +20,7 @@ import (
 type AppCmd struct {
 	product       string
 	version       string
-	usage         string
+	usages        []string
 	options       []*CommandHelpOption
 	appendStrings []string
 
@@ -53,7 +54,7 @@ func (this *AppCmd) Version(version string) *AppCmd {
 
 // Usage 使用方法
 func (this *AppCmd) Usage(usage string) *AppCmd {
-	this.usage = usage
+	this.usages = append(this.usages, usage)
 	return this
 }
 
@@ -76,8 +77,10 @@ func (this *AppCmd) Append(appendString string) *AppCmd {
 func (this *AppCmd) Print() {
 	fmt.Println(this.product + " v" + this.version)
 
-	usage := this.usage
-	fmt.Println("Usage:", "\n   "+usage)
+	fmt.Println("Usage:")
+	for _, usage := range this.usages {
+		fmt.Println("   " + usage)
+	}
 
 	if len(this.options) > 0 {
 		fmt.Println("")
@@ -210,7 +213,19 @@ func (this *AppCmd) runStop() {
 		return
 	}
 
-	_, _ = this.sock.Send(&gosock.Command{Code: "stop"})
+	// 从systemd中停止
+	if runtime.GOOS == "linux" {
+		systemctl, _ := exec.LookPath("systemctl")
+		if len(systemctl) > 0 {
+			go func() {
+				// 有可能会长时间执行，这里不阻塞进程
+				_ = exec.Command(systemctl, "stop", teaconst.SystemdServiceName).Run()
+			}()
+		}
+	}
+
+	// 如果仍在运行，则发送停止指令
+	_, _ = this.sock.SendTimeout(&gosock.Command{Code: "stop"}, 1*time.Second)
 
 	fmt.Println(this.product+" stopped ok, pid:", types.String(pid))
 }
@@ -245,3 +260,19 @@ func (this *AppCmd) getPID() int {
 	}
 	return maps.NewMap(reply.Params).GetInt("pid")
 }
+
+// ParseOptions 分析参数中的选项
+func (this *AppCmd) ParseOptions(args []string) map[string][]string {
+	var result = map[string][]string{}
+	for _, arg := range args {
+		var pieces = strings.SplitN(arg, "=", 2)
+		var key = strings.TrimLeft(pieces[0], "- ")
+		key = strings.TrimSpace(key)
+		var value = ""
+		if len(pieces) == 2 {
+			value = strings.TrimSpace(pieces[1])
+		}
+		result[key] = append(result[key], value)
+	}
+	return result
+}

internal/apps/log_writer.go

@@ -1,10 +1,12 @@
 package apps
 
 import (
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/sizes"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/files"
-	"github.com/iwind/TeaGo/logs"
-	"github.com/iwind/TeaGo/utils/time"
+	timeutil "github.com/iwind/TeaGo/utils/time"
 	"log"
 	"os"
 	"runtime"
@@ -13,27 +15,55 @@ import (
 )
 
 type LogWriter struct {
-	fileAppender *files.Appender
+	fp *os.File
+	c  chan string
 }
 
 func (this *LogWriter) Init() {
 	// 创建目录
-	dir := files.NewFile(Tea.LogDir())
+	var dir = files.NewFile(Tea.LogDir())
 	if !dir.Exists() {
 		err := dir.Mkdir()
 		if err != nil {
-			log.Println("[error]" + err.Error())
+			log.Println("[LOG]create log dir failed: " + err.Error())
 		}
 	}
 
-	logFile := files.NewFile(Tea.LogFile("run.log"))
-
 	// 打开要写入的日志文件
-	appender, err := logFile.Appender()
+	var logPath = Tea.LogFile("run.log")
+	fp, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 	if err != nil {
-		logs.Error(err)
+		log.Println("[LOG]open log file failed: " + err.Error())
 	} else {
-		this.fileAppender = appender
+		this.fp = fp
+	}
+
+	this.c = make(chan string, 1024)
+
+	// 异步写入文件
+	var maxFileSize = 2 * sizes.G // 文件最大尺寸，超出此尺寸则清空
+	if fp != nil {
+		goman.New(func() {
+			var totalSize int64 = 0
+			stat, err := fp.Stat()
+			if err == nil {
+				totalSize = stat.Size()
+			}
+
+			for message := range this.c {
+				totalSize += int64(len(message))
+				_, err := fp.WriteString(timeutil.Format("Y/m/d H:i:s ") + message + "\n")
+				if err != nil {
+					log.Println("[LOG]write log failed: " + err.Error())
+				} else {
+					// 如果太大则Truncate
+					if totalSize > maxFileSize {
+						_ = fp.Truncate(0)
+						totalSize = 0
+					}
+				}
+			}
+		})
 	}
 }
 
@@ -48,7 +78,7 @@ func (this *LogWriter) Write(message string) {
 			var ok bool
 			_, file, line, ok = runtime.Caller(callDepth)
 			if ok {
-				file = this.packagePath(file)
+				file = utils.RemoveWorkspace(this.packagePath(file))
 			}
 		}
 
@@ -59,18 +89,18 @@ func (this *LogWriter) Write(message string) {
 		}
 	}
 
-	if this.fileAppender != nil {
-		_, err := this.fileAppender.AppendString(timeutil.Format("Y/m/d H:i:s ") + message + "\n")
-		if err != nil {
-			log.Println("[error]" + err.Error())
-		}
+	select {
+	case this.c <- message:
+	default:
 	}
 }
 
 func (this *LogWriter) Close() {
-	if this.fileAppender != nil {
-		_ = this.fileAppender.Close()
+	if this.fp != nil {
+		_ = this.fp.Close()
 	}
+
+	close(this.c)
 }
 
 func (this *LogWriter) packagePath(path string) string {

internal/caches/consts.go

@@ -0,0 +1,10 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+const (
+	SuffixWebP        = "@GOEDGE_WEBP"    // WebP后缀
+	SuffixCompression = "@GOEDGE_"        // 压缩后缀 SuffixCompression + Encoding
+	SuffixMethod      = "@GOEDGE_"        // 请求方法后缀 SuffixMethod + RequestMethod
+	SuffixPartial     = "@GOEDGE_partial" // 分区缓存后缀
+)

internal/caches/errors.go

@@ -6,9 +6,13 @@ import "errors"
 
 // 常用的几个错误
 var (
-	ErrNotFound      = errors.New("cache not found")
-	ErrFileIsWriting = errors.New("the file is writing")
-	ErrInvalidRange  = errors.New("invalid range")
+	ErrNotFound           = errors.New("cache not found")
+	ErrFileIsWriting      = errors.New("the file is writing")
+	ErrInvalidRange       = errors.New("invalid range")
+	ErrEntityTooLarge     = errors.New("entity too large")
+	ErrWritingUnavailable = errors.New("writing unavailable")
+	ErrWritingQueueFull   = errors.New("writing queue full")
+	ErrTooManyOpenFiles   = errors.New("too many open files")
 )
 
 // CapacityError 容量错误
@@ -30,7 +34,11 @@ func CanIgnoreErr(err error) bool {
 	if err == nil {
 		return true
 	}
-	if err == ErrFileIsWriting {
+	if err == ErrFileIsWriting ||
+		err == ErrEntityTooLarge ||
+		err == ErrWritingUnavailable ||
+		err == ErrWritingQueueFull ||
+		err == ErrTooManyOpenFiles {
 		return true
 	}
 	_, ok := err.(*CapacityError)

internal/caches/hot_item.go

@@ -3,8 +3,6 @@
 package caches
 
 type HotItem struct {
-	Key       string
-	ExpiresAt int64
-	Hits      uint32
-	Status int
+	Key  string
+	Hits uint32
 }

internal/caches/list_file.go

@@ -4,52 +4,32 @@ package caches
 
 import (
 	"database/sql"
-	"errors"
 	"github.com/TeaOSLab/EdgeNode/internal/goman"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/ttlcache"
-	"github.com/TeaOSLab/EdgeNode/internal/utils"
-	"github.com/iwind/TeaGo/lists"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fnv"
 	"github.com/iwind/TeaGo/types"
-	timeutil "github.com/iwind/TeaGo/utils/time"
 	_ "github.com/mattn/go-sqlite3"
 	"os"
 	"sync/atomic"
 	"time"
 )
 
+const CountFileDB = 20
+
 // FileList 文件缓存列表管理
 type FileList struct {
-	dir   string
-	db    *sql.DB
-	total int64
+	dir    string
+	dbList [CountFileDB]*FileListDB
+	total  int64
 
 	onAdd    func(item *Item)
 	onRemove func(item *Item)
 
-	// cacheItems
-	existsByHashStmt *sql.Stmt // 根据hash检查是否存在
-	insertStmt       *sql.Stmt // 写入数据
-	selectByHashStmt *sql.Stmt // 使用hash查询数据
-	deleteByHashStmt *sql.Stmt // 根据hash删除数据
-	statStmt         *sql.Stmt // 统计
-	purgeStmt        *sql.Stmt // 清理
-	deleteAllStmt    *sql.Stmt // 删除所有数据
-
-	// hits
-	insertHitStmt       *sql.Stmt // 写入数据
-	increaseHitStmt     *sql.Stmt // 增加点击量
-	deleteHitByHashStmt *sql.Stmt // 根据hash删除数据
-	lfuHitsStmt         *sql.Stmt // 读取老的数据
-
-	oldTables      []string
-	itemsTableName string
-	hitsTableName  string
-
-	isClosed bool
-	isReady  bool
-
 	memoryCache *ttlcache.Cache
+
+	// 老数据库地址
+	oldDir string
 }
 
 func NewFileList(dir string) ListInterface {
@@ -59,6 +39,10 @@ func NewFileList(dir string) ListInterface {
 	}
 }
 
+func (this *FileList) SetOldDir(oldDir string) {
+	this.oldDir = oldDir
+}
+
 func (this *FileList) Init() error {
 	// 检查目录是否存在
 	_, err := os.Stat(this.dir)
@@ -70,114 +54,38 @@ func (this *FileList) Init() error {
 		remotelogs.Println("CACHE", "create cache dir '"+this.dir+"'")
 	}
 
-	this.itemsTableName = "cacheItems_v3"
-	this.hitsTableName = "hits"
-
 	var dir = this.dir
 	if dir == "/" {
 		// 防止sqlite提示authority错误
 		dir = ""
 	}
-	var dbPath = dir + "/index.db"
-	remotelogs.Println("CACHE", "loading database '"+dbPath+"'")
-	db, err := sql.Open("sqlite3", "file:"+dbPath+"?cache=shared&mode=rwc&_journal_mode=WAL")
-	if err != nil {
-		return errors.New("open database failed: " + err.Error())
-	}
 
-	db.SetMaxOpenConns(1)
+	remotelogs.Println("CACHE", "loading database from '"+dir+"' ...")
+	for i := 0; i < CountFileDB; i++ {
+		var db = NewFileListDB()
+		err = db.Open(dir + "/db-" + types.String(i) + ".db")
+		if err != nil {
+			return err
+		}
 
-	this.db = db
+		err = db.Init()
+		if err != nil {
+			return err
+		}
 
-	// TODO 耗时过长，暂时不整理数据库
-	/**_, err = db.Exec("VACUUM")
-	if err != nil {
-		return err
-	}**/
-
-	// 创建
-	err = this.initTables(db, 1)
-	if err != nil {
-		return errors.New("init tables failed: " + err.Error())
-	}
-
-	// 清除旧表
-	// 这个一定要在initTables()之后，因为老的数据需要转移
-	this.oldTables = []string{
-		"cacheItems",
-		"cacheItems_v2",
-	}
-	err = this.removeOldTables()
-	if err != nil {
-		remotelogs.Warn("CACHE", "clean old tables failed: "+err.Error())
+		this.dbList[i] = db
 	}
 
 	// 读取总数量
-	row := this.db.QueryRow(`SELECT COUNT(*) FROM "` + this.itemsTableName + `"`)
-	if row.Err() != nil {
-		return row.Err()
-	}
-	var total int64
-	err = row.Scan(&total)
-	if err != nil {
-		return err
-	}
-	this.total = total
-
-	// 常用语句
-	this.existsByHashStmt, err = this.db.Prepare(`SELECT "expiredAt" FROM "` + this.itemsTableName + `" WHERE "hash"=? AND expiredAt>? LIMIT 1`)
-	if err != nil {
-		return err
+	this.total = 0
+	for _, db := range this.dbList {
+		this.total += db.total
 	}
 
-	this.insertStmt, err = this.db.Prepare(`INSERT INTO "` + this.itemsTableName + `" ("hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "host", "serverId", "createdAt") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`)
-	if err != nil {
-		return err
-	}
-
-	this.selectByHashStmt, err = this.db.Prepare(`SELECT "key", "headerSize", "bodySize", "metaSize", "expiredAt" FROM "` + this.itemsTableName + `" WHERE "hash"=? LIMIT 1`)
-	if err != nil {
-		return err
-	}
-
-	this.deleteByHashStmt, err = this.db.Prepare(`DELETE FROM "` + this.itemsTableName + `" WHERE "hash"=?`)
-	if err != nil {
-		return err
-	}
-
-	this.statStmt, err = this.db.Prepare(`SELECT COUNT(*), IFNULL(SUM(headerSize+bodySize+metaSize), 0), IFNULL(SUM(headerSize+bodySize), 0) FROM "` + this.itemsTableName + `"`)
-	if err != nil {
-		return err
-	}
-
-	this.purgeStmt, err = this.db.Prepare(`SELECT "hash" FROM "` + this.itemsTableName + `" WHERE staleAt<=? LIMIT ?`)
-	if err != nil {
-		return err
-	}
-
-	this.deleteAllStmt, err = this.db.Prepare(`DELETE FROM "` + this.itemsTableName + `"`)
-	if err != nil {
-		return err
-	}
-
-	this.insertHitStmt, err = this.db.Prepare(`INSERT INTO "` + this.hitsTableName + `" ("hash", "week2Hits", "week") VALUES (?, 1, ?)`)
-
-	this.increaseHitStmt, err = this.db.Prepare(`INSERT INTO "` + this.hitsTableName + `" ("hash", "week2Hits", "week") VALUES (?, 1, ?) ON CONFLICT("hash") DO UPDATE SET "week1Hits"=IIF("week"=?, "week1Hits", "week2Hits"), "week2Hits"=IIF("week"=?, "week2Hits"+1, 1), "week"=?`)
-	if err != nil {
-		return err
-	}
-
-	this.deleteHitByHashStmt, err = this.db.Prepare(`DELETE FROM "` + this.hitsTableName + `" WHERE "hash"=?`)
-	if err != nil {
-		return err
-	}
-
-	this.lfuHitsStmt, err = this.db.Prepare(`SELECT "hash" FROM "` + this.hitsTableName + `" ORDER BY "week" ASC, "week1Hits"+"week2Hits" ASC LIMIT ?`)
-	if err != nil {
-		return err
-	}
-
-	this.isReady = true
+	// 升级老版本数据库
+	goman.New(func() {
+		this.upgradeOldDB()
+	})
 
 	return nil
 }
@@ -188,26 +96,23 @@ func (this *FileList) Reset() error {
 }
 
 func (this *FileList) Add(hash string, item *Item) error {
-	if !this.isReady {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
 		return nil
 	}
 
-	if item.StaleAt == 0 {
-		item.StaleAt = item.ExpiredAt
-	}
-
-	_, err := this.insertStmt.Exec(hash, item.Key, item.HeaderSize, item.BodySize, item.MetaSize, item.ExpiredAt, item.StaleAt, item.Host, item.ServerId, utils.UnixTime())
-	if err != nil {
-		return err
-	}
-
-	_, err = this.insertHitStmt.Exec(hash, timeutil.Format("YW"))
+	err := db.AddAsync(hash, item)
 	if err != nil {
 		return err
 	}
 
 	atomic.AddInt64(&this.total, 1)
 
+	// 这里不增加点击量，以减少对数据库的操作次数
+
+	this.memoryCache.Write(hash, 1, item.ExpiredAt)
+
 	if this.onAdd != nil {
 		this.onAdd(item)
 	}
@@ -215,40 +120,41 @@ func (this *FileList) Add(hash string, item *Item) error {
 }
 
 func (this *FileList) Exist(hash string) (bool, error) {
-	if !this.isReady {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
 		return false, nil
 	}
 
-	item := this.memoryCache.Read(hash)
+	// 如果Hash列表里不存在，那么必然不存在
+	if !db.hashMap.Exist(hash) {
+		return false, nil
+	}
+
+	var item = this.memoryCache.Read(hash)
 	if item != nil {
 		return true, nil
 	}
 
-	rows, err := this.existsByHashStmt.Query(hash, time.Now().Unix())
+	var row = db.existsByHashStmt.QueryRow(hash, time.Now().Unix())
+	if row.Err() != nil {
+		return false, nil
+	}
+
+	var expiredAt int64
+	err := row.Scan(&expiredAt)
 	if err != nil {
+		if err == sql.ErrNoRows {
+			err = nil
+		}
 		return false, err
 	}
-	defer func() {
-		_ = rows.Close()
-	}()
-	if rows.Next() {
-		var expiredAt int64
-		err = rows.Scan(&expiredAt)
-		if err != nil {
-			return false, nil
-		}
-		this.memoryCache.Write(hash, 1, expiredAt)
-		return true, nil
-	}
-	return false, nil
+	this.memoryCache.Write(hash, 1, expiredAt)
+	return true, nil
 }
 
 // CleanPrefix 清理某个前缀的缓存数据
 func (this *FileList) CleanPrefix(prefix string) error {
-	if !this.isReady {
-		return nil
-	}
-
 	if len(prefix) == 0 {
 		return nil
 	}
@@ -257,105 +163,48 @@ func (this *FileList) CleanPrefix(prefix string) error {
 		this.memoryCache.Clean()
 	}()
 
-	var count = int64(10000)
-	var staleLife = 600 // TODO 需要可以设置
-	for {
-		result, err := this.db.Exec(`UPDATE "`+this.itemsTableName+`" SET expiredAt=0,staleAt=? WHERE id IN (SELECT id FROM "`+this.itemsTableName+`" WHERE expiredAt>0 AND createdAt<=? AND INSTR("key", ?)=1 LIMIT `+types.String(count)+`)`, utils.UnixTime()+int64(staleLife), utils.UnixTime(), prefix)
+	for _, db := range this.dbList {
+		err := db.CleanPrefix(prefix)
 		if err != nil {
 			return err
 		}
-		affectedRows, err := result.RowsAffected()
-		if err != nil {
-			return err
-		}
-		if affectedRows < count {
-			return nil
-		}
 	}
+	return nil
 }
 
 func (this *FileList) Remove(hash string) error {
-	if !this.isReady {
-		return nil
-	}
-
-	// 从缓存中删除
-	this.memoryCache.Delete(hash)
-
-	row := this.selectByHashStmt.QueryRow(hash)
-	if row.Err() != nil {
-		return row.Err()
-	}
-
-	var item = &Item{Type: ItemTypeFile}
-	err := row.Scan(&item.Key, &item.HeaderSize, &item.BodySize, &item.MetaSize, &item.ExpiredAt)
-	if err != nil {
-		if err == sql.ErrNoRows {
-			return nil
-		}
-		return err
-	}
-
-	_, err = this.deleteByHashStmt.Exec(hash)
-	if err != nil {
-		return err
-	}
-
-	_, err = this.deleteHitByHashStmt.Exec(hash)
-	if err != nil {
-		return err
-	}
-
-	atomic.AddInt64(&this.total, -1)
-
-	if this.onRemove != nil {
-		this.onRemove(item)
-	}
-
-	return nil
+	_, err := this.remove(hash)
+	return err
 }
 
 // Purge 清理过期的缓存
 // count 每次遍历的最大数量，控制此数字可以保证每次清理的时候不用花太多时间
 // callback 每次发现过期key的调用
 func (this *FileList) Purge(count int, callback func(hash string) error) (int, error) {
-	if !this.isReady {
-		return 0, nil
-	}
-
+	count /= CountFileDB
 	if count <= 0 {
-		count = 1000
+		count = 100
 	}
 
-	rows, err := this.purgeStmt.Query(time.Now().Unix(), count)
-	if err != nil {
-		return 0, err
-	}
-
-	hashStrings := []string{}
 	var countFound = 0
-	for rows.Next() {
-		var hash string
-		err = rows.Scan(&hash)
+	for _, db := range this.dbList {
+		hashStrings, err := db.ListExpiredItems(count)
 		if err != nil {
-			_ = rows.Close()
-			return 0, err
+			return 0, nil
 		}
-		hashStrings = append(hashStrings, hash)
-		countFound++
-	}
-	_ = rows.Close() // 不能使用defer，防止读写冲突
+		countFound += len(hashStrings)
 
-	// 不在 rows.Next() 循环中操作是为了避免死锁
-	for _, hash := range hashStrings {
-		err = this.Remove(hash)
-		if err != nil {
-			return 0, err
-		}
+		// 不在 rows.Next() 循环中操作是为了避免死锁
+		for _, hash := range hashStrings {
+			err = this.Remove(hash)
+			if err != nil {
+				return 0, err
+			}
 
-		err = callback(hash)
-		if err != nil {
-			return 0, err
+			err = callback(hash)
+			if err != nil {
+				return 0, err
+			}
 		}
 	}
 
@@ -363,80 +212,80 @@ func (this *FileList) Purge(count int, callback func(hash string) error) (int, e
 }
 
 func (this *FileList) PurgeLFU(count int, callback func(hash string) error) error {
-	if !this.isReady {
-		return nil
-	}
-
+	count /= CountFileDB
 	if count <= 0 {
-		return nil
+		count = 100
 	}
 
-	rows, err := this.lfuHitsStmt.Query(count)
-	if err != nil {
-		return err
-	}
-
-	hashStrings := []string{}
-	var countFound = 0
-	for rows.Next() {
-		var hash string
-		err = rows.Scan(&hash)
-		if err != nil {
-			_ = rows.Close()
-			return err
-		}
-		hashStrings = append(hashStrings, hash)
-		countFound++
-	}
-	_ = rows.Close() // 不能使用defer，防止读写冲突
-
-	// 不在 rows.Next() 循环中操作是为了避免死锁
-	for _, hash := range hashStrings {
-		err = this.Remove(hash)
+	for _, db := range this.dbList {
+		hashStrings, err := db.ListLFUItems(count)
 		if err != nil {
 			return err
 		}
 
-		err = callback(hash)
-		if err != nil {
-			return err
+		// 不在 rows.Next() 循环中操作是为了避免死锁
+		for _, hash := range hashStrings {
+			notFound, err := this.remove(hash)
+			if err != nil {
+				return err
+			}
+			if notFound {
+				err = db.DeleteHitAsync(hash)
+				if err != nil {
+					return db.WrapError(err)
+				}
+			}
+
+			err = callback(hash)
+			if err != nil {
+				return err
+			}
 		}
 	}
 	return nil
 }
 
 func (this *FileList) CleanAll() error {
-	if !this.isReady {
-		return nil
+	defer this.memoryCache.Clean()
+
+	for _, db := range this.dbList {
+		err := db.CleanAll()
+		if err != nil {
+			return err
+		}
 	}
 
-	this.memoryCache.Clean()
-
-	_, err := this.deleteAllStmt.Exec()
-	if err != nil {
-		return err
-	}
 	atomic.StoreInt64(&this.total, 0)
+
 	return nil
 }
 
 func (this *FileList) Stat(check func(hash string) bool) (*Stat, error) {
-	if !this.isReady {
-		return &Stat{}, nil
+	var result = &Stat{}
+
+	for _, db := range this.dbList {
+		if !db.IsReady() {
+			return &Stat{}, nil
+		}
+
+		// 这里不设置过期时间、不使用 check 函数，目的是让查询更快速一些
+		_ = check
+
+		var row = db.statStmt.QueryRow()
+		if row.Err() != nil {
+			return nil, row.Err()
+		}
+		var stat = &Stat{}
+		err := row.Scan(&stat.Count, &stat.Size, &stat.ValueSize)
+		if err != nil {
+			return nil, err
+		}
+		result.Count += stat.Count
+		result.Size += stat.Size
+		result.ValueSize += stat.ValueSize
 	}
 
-	// 这里不设置过期时间、不使用 check 函数，目的是让查询更快速一些
-	row := this.statStmt.QueryRow()
-	if row.Err() != nil {
-		return nil, row.Err()
-	}
-	stat := &Stat{}
-	err := row.Scan(&stat.Count, &stat.Size, &stat.ValueSize)
-	if err != nil {
-		return nil, err
-	}
-
-	return stat, nil
+	return result, nil
 }
 
 // Count 总数量
@@ -447,9 +296,13 @@ func (this *FileList) Count() (int64, error) {
 
 // IncreaseHit 增加点击量
 func (this *FileList) IncreaseHit(hash string) error {
-	var week = timeutil.Format("YW")
-	_, err := this.increaseHitStmt.Exec(hash, week, week, week, week)
-	return err
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
+		return nil
+	}
+
+	return db.IncreaseHitAsync(hash)
 }
 
 // OnAdd 添加事件
@@ -463,164 +316,183 @@ func (this *FileList) OnRemove(f func(item *Item)) {
 }
 
 func (this *FileList) Close() error {
-	this.isClosed = true
-	this.isReady = false
-
 	this.memoryCache.Destroy()
 
-	if this.db != nil {
-		_ = this.existsByHashStmt.Close()
-		_ = this.insertStmt.Close()
-		_ = this.selectByHashStmt.Close()
-		_ = this.deleteByHashStmt.Close()
-		_ = this.statStmt.Close()
-		_ = this.purgeStmt.Close()
-		_ = this.deleteAllStmt.Close()
-
-		_ = this.insertHitStmt.Close()
-		_ = this.increaseHitStmt.Close()
-		_ = this.deleteHitByHashStmt.Close()
-		_ = this.lfuHitsStmt.Close()
-
-		return this.db.Close()
+	for _, db := range this.dbList {
+		if db != nil {
+			_ = db.Close()
+		}
 	}
+
 	return nil
 }
 
-// 初始化
-func (this *FileList) initTables(db *sql.DB, times int) error {
-	// 检查是否存在
-	_, err := db.Exec(`SELECT id FROM "` + this.itemsTableName + `" LIMIT 1`)
-	var notFound = false
+func (this *FileList) GetDBIndex(hash string) uint64 {
+	return fnv.HashString(hash) % CountFileDB
+}
+
+func (this *FileList) GetDB(hash string) *FileListDB {
+	return this.dbList[fnv.HashString(hash)%CountFileDB]
+}
+
+func (this *FileList) remove(hash string) (notFound bool, err error) {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
+		return false, nil
+	}
+
+	// HashMap中不存在，则确定不存在
+	if !db.hashMap.Exist(hash) {
+		return true, nil
+	}
+	defer db.hashMap.Delete(hash)
+
+	// 从缓存中删除
+	this.memoryCache.Delete(hash)
+
+	var row = db.selectByHashStmt.QueryRow(hash)
+	if row.Err() != nil {
+		if row.Err() == sql.ErrNoRows {
+			return true, nil
+		}
+		return false, row.Err()
+	}
+
+	var item = &Item{Type: ItemTypeFile}
+	err = row.Scan(&item.Key, &item.HeaderSize, &item.BodySize, &item.MetaSize, &item.ExpiredAt)
 	if err != nil {
-		notFound = true
-	}
-
-	{
-		// expiredAt - 过期时间，用来判断有无过期
-		// staleAt - 陈旧最大时间，用来清理缓存
-		_, err := db.Exec(`CREATE TABLE IF NOT EXISTS "` + this.itemsTableName + `" (
-  "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
-  "hash" varchar(32),
-  "key" varchar(1024),
-  "headerSize" integer DEFAULT 0,
-  "bodySize" integer DEFAULT 0,
-  "metaSize" integer DEFAULT 0,
-  "expiredAt" integer DEFAULT 0,
-  "staleAt" integer DEFAULT 0,
-  "createdAt" integer DEFAULT 0,
-  "host" varchar(128),
-  "serverId" integer
-);
-
-CREATE INDEX IF NOT EXISTS "createdAt"
-ON "` + this.itemsTableName + `" (
-  "createdAt" ASC
-);
-
-CREATE INDEX IF NOT EXISTS "expiredAt"
-ON "` + this.itemsTableName + `" (
-  "expiredAt" ASC
-);
-
-CREATE INDEX IF NOT EXISTS "staleAt"
-ON "` + this.itemsTableName + `" (
-  "staleAt" ASC
-);
-
-CREATE UNIQUE INDEX IF NOT EXISTS "hash"
-ON "` + this.itemsTableName + `" (
-  "hash" ASC
-);
-
-CREATE INDEX IF NOT EXISTS "serverId"
-ON "` + this.itemsTableName + `" (
-  "serverId" ASC
-);
-`)
-
-		if err != nil {
-			// 尝试删除重建
-			if times < 3 {
-				_, dropErr := db.Exec(`DROP TABLE "` + this.itemsTableName + `"`)
-				if dropErr == nil {
-					return this.initTables(db, times+1)
-				}
-				return err
-			}
-
-			return err
+		if err == sql.ErrNoRows {
+			return true, nil
 		}
+		return false, err
 	}
 
-	// 如果数据为空，从老数据中加载数据
-	if notFound {
-		// v2 => v3
-		remotelogs.Println("CACHE", "transferring old data from v2 to v3 ...")
-		result, err := db.Exec(`INSERT INTO "` + this.itemsTableName + `" ("id", "hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "createdAt", "host", "serverId", "staleAt") SELECT "id", "hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "createdAt", "host", "serverId", "expiredAt"+600 FROM cacheItems_v2`)
-		if err != nil {
-			remotelogs.Println("CACHE", "transfer old data from v2 to v3 failed: "+err.Error())
-		} else {
-			count, _ := result.RowsAffected()
-			remotelogs.Println("CACHE", "transfer old data from v2 to v3 finished, "+types.String(count)+" rows transferred")
-		}
+	err = db.DeleteAsync(hash)
+	if err != nil {
+		return false, db.WrapError(err)
 	}
 
-	{
-		_, err := db.Exec(`CREATE TABLE IF NOT EXISTS "` + this.hitsTableName + `" (
-  "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
-  "hash" varchar(32),
-  "week1Hits" integer DEFAULT 0,
-  "week2Hits" integer DEFAULT 0,
-  "week" varchar(6)
-);
+	atomic.AddInt64(&this.total, -1)
 
-CREATE UNIQUE INDEX IF NOT EXISTS "hits_hash"
-ON "` + this.hitsTableName + `" (
-  "hash" ASC
-);
-`)
-		if err != nil {
-			// 尝试删除重建
-			if times < 3 {
-				_, dropErr := db.Exec(`DROP TABLE "` + this.hitsTableName + `"`)
-				if dropErr == nil {
-					return this.initTables(db, times+1)
-				}
-				return err
-			}
-
-			return err
-		}
+	err = db.DeleteHitAsync(hash)
+	if err != nil {
+		return false, db.WrapError(err)
 	}
 
-	return nil
+	if this.onRemove != nil {
+		this.onRemove(item)
+	}
+
+	return false, nil
 }
 
-// 删除过期不用的表格
-func (this *FileList) removeOldTables() error {
-	rows, err := this.db.Query(`SELECT "name" FROM sqlite_master WHERE "type"='table'`)
+// 升级老版本数据库
+func (this *FileList) upgradeOldDB() {
+	if len(this.oldDir) == 0 {
+		return
+	}
+	_ = this.UpgradeV3(this.oldDir, false)
+}
+
+func (this *FileList) UpgradeV3(oldDir string, brokenOnError bool) error {
+	// index.db
+	var indexDBPath = oldDir + "/index.db"
+	_, err := os.Stat(indexDBPath)
+	if err != nil {
+		return nil
+	}
+	remotelogs.Println("CACHE", "upgrading local database from '"+oldDir+"' ...")
+
+	defer func() {
+		_ = os.Remove(indexDBPath)
+		remotelogs.Println("CACHE", "upgrading local database finished")
+	}()
+
+	db, err := sql.Open("sqlite3", "file:"+indexDBPath+"?cache=shared&mode=rwc&_journal_mode=WAL&_sync=OFF")
 	if err != nil {
 		return err
 	}
+
 	defer func() {
-		_ = rows.Close()
+		_ = db.Close()
 	}()
-	for rows.Next() {
-		var name string
-		err = rows.Scan(&name)
+
+	var isFinished = false
+	var offset = 0
+	var count = 10000
+
+	for {
+		if isFinished {
+			break
+		}
+
+		err = func() error {
+			defer func() {
+				offset += count
+			}()
+
+			rows, err := db.Query(`SELECT "hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "createdAt", "host", "serverId" FROM "cacheItems_v3" ORDER BY "id" ASC LIMIT ?, ?`, offset, count)
+			if err != nil {
+				return err
+			}
+			defer func() {
+				_ = rows.Close()
+			}()
+
+			var hash = ""
+			var key = ""
+			var headerSize int64
+			var bodySize int64
+			var metaSize int64
+			var expiredAt int64
+			var staleAt int64
+			var createdAt int64
+			var host string
+			var serverId int64
+
+			isFinished = true
+
+			for rows.Next() {
+				isFinished = false
+
+				err = rows.Scan(&hash, &key, &headerSize, &bodySize, &metaSize, &expiredAt, &staleAt, &createdAt, &host, &serverId)
+				if err != nil {
+					if brokenOnError {
+						return err
+					}
+					return nil
+				}
+
+				err = this.Add(hash, &Item{
+					Type:       ItemTypeFile,
+					Key:        key,
+					ExpiredAt:  expiredAt,
+					StaleAt:    staleAt,
+					HeaderSize: headerSize,
+					BodySize:   bodySize,
+					MetaSize:   metaSize,
+					Host:       host,
+					ServerId:   serverId,
+					Week1Hits:  0,
+					Week2Hits:  0,
+					Week:       0,
+				})
+				if err != nil {
+					if brokenOnError {
+						return err
+					}
+				}
+			}
+
+			return nil
+		}()
 		if err != nil {
 			return err
 		}
-		if lists.ContainsString(this.oldTables, name) {
-			// 异步执行
-			goman.New(func() {
-				remotelogs.Println("CACHE", "remove old table '"+name+"' ...")
-				_, _ = this.db.Exec(`DROP TABLE "` + name + `"`)
-				remotelogs.Println("CACHE", "remove old table '"+name+"' done")
-			})
-		}
 
+		time.Sleep(1 * time.Second)
 	}
+
 	return nil
 }

internal/caches/list_file_db.go

@@ -0,0 +1,578 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"database/sql"
+	"errors"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
+	"github.com/iwind/TeaGo/types"
+	timeutil "github.com/iwind/TeaGo/utils/time"
+	"runtime"
+	"strings"
+	"time"
+)
+
+type FileListDB struct {
+	dbPath string
+
+	readDB  *dbs.DB
+	writeDB *dbs.DB
+
+	writeBatch *dbs.Batch
+
+	hashMap *FileListHashMap
+
+	itemsTableName string
+	hitsTableName  string
+
+	total int64
+
+	isClosed bool
+	isReady  bool
+
+	// cacheItems
+	existsByHashStmt *dbs.Stmt // 根据hash检查是否存在
+
+	insertStmt *dbs.Stmt // 写入数据
+	insertSQL  string
+
+	selectByHashStmt *dbs.Stmt // 使用hash查询数据
+
+	selectHashListStmt *dbs.Stmt
+
+	deleteByHashStmt *dbs.Stmt // 根据hash删除数据
+	deleteByHashSQL  string
+
+	statStmt           *dbs.Stmt // 统计
+	purgeStmt          *dbs.Stmt // 清理
+	deleteAllStmt      *dbs.Stmt // 删除所有数据
+	listOlderItemsStmt *dbs.Stmt // 读取较早存储的缓存
+
+	// hits
+	insertHitSQL       string    // 写入数据
+	increaseHitSQL     string    // 增加点击量
+	deleteHitByHashSQL string    // 根据hash删除数据
+	lfuHitsStmt        *dbs.Stmt // 读取老的数据
+}
+
+func NewFileListDB() *FileListDB {
+	return &FileListDB{
+		hashMap: NewFileListHashMap(),
+	}
+}
+
+func (this *FileListDB) Open(dbPath string) error {
+	this.dbPath = dbPath
+
+	// 动态调整Cache值
+	var cacheSize = 32000
+	var memoryGB = utils.SystemMemoryGB()
+	if memoryGB >= 8 {
+		cacheSize += 32000 * memoryGB / 8
+	}
+
+	// write db
+	writeDB, err := sql.Open("sqlite3", "file:"+dbPath+"?cache=private&mode=rwc&_journal_mode=WAL&_sync=OFF&_cache_size="+types.String(cacheSize)+"&_secure_delete=FAST")
+	if err != nil {
+		return errors.New("open write database failed: " + err.Error())
+	}
+
+	writeDB.SetMaxOpenConns(1)
+
+	// TODO 耗时过长，暂时不整理数据库
+	// TODO 需要根据行数来判断是否VACUUM
+	/**_, err = db.Exec("VACUUM")
+	if err != nil {
+		return err
+	}**/
+
+	this.writeDB = dbs.NewDB(writeDB)
+	this.writeBatch = dbs.NewBatch(writeDB, 4)
+	this.writeBatch.OnFail(func(err error) {
+		remotelogs.Warn("LIST_FILE_DB", "run batch failed: "+err.Error())
+	})
+
+	goman.New(func() {
+		this.writeBatch.Exec()
+	})
+
+	if teaconst.EnableDBStat {
+		this.writeBatch.EnableStat(true)
+		this.writeDB.EnableStat(true)
+	}
+
+	// read db
+	readDB, err := sql.Open("sqlite3", "file:"+dbPath+"?cache=private&mode=ro&_journal_mode=WAL&_sync=OFF&_cache_size="+types.String(cacheSize))
+	if err != nil {
+		return errors.New("open read database failed: " + err.Error())
+	}
+
+	readDB.SetMaxOpenConns(runtime.NumCPU())
+
+	this.readDB = dbs.NewDB(readDB)
+
+	if teaconst.EnableDBStat {
+		this.readDB.EnableStat(true)
+	}
+
+	return nil
+}
+
+func (this *FileListDB) Init() error {
+	this.itemsTableName = "cacheItems"
+	this.hitsTableName = "hits"
+
+	// 创建
+	var err = this.initTables(1)
+	if err != nil {
+		return errors.New("init tables failed: " + err.Error())
+	}
+
+	// 读取总数量
+	row := this.readDB.QueryRow(`SELECT COUNT(*) FROM "` + this.itemsTableName + `"`)
+	if row.Err() != nil {
+		return row.Err()
+	}
+	var total int64
+	err = row.Scan(&total)
+	if err != nil {
+		return err
+	}
+	this.total = total
+
+	// 常用语句
+	this.existsByHashStmt, err = this.readDB.Prepare(`SELECT "expiredAt" FROM "` + this.itemsTableName + `" INDEXED BY "hash" WHERE "hash"=? AND expiredAt>? LIMIT 1`)
+	if err != nil {
+		return err
+	}
+
+	this.insertSQL = `INSERT INTO "` + this.itemsTableName + `" ("hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "host", "serverId", "createdAt") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+	this.insertStmt, err = this.writeDB.Prepare(this.insertSQL)
+	if err != nil {
+		return err
+	}
+
+	this.selectByHashStmt, err = this.readDB.Prepare(`SELECT "key", "headerSize", "bodySize", "metaSize", "expiredAt" FROM "` + this.itemsTableName + `" WHERE "hash"=? LIMIT 1`)
+	if err != nil {
+		return err
+	}
+
+	this.selectHashListStmt, err = this.readDB.Prepare(`SELECT "id", "hash" FROM "` + this.itemsTableName + `" WHERE id>:id ORDER BY id ASC LIMIT 2000`)
+
+	this.deleteByHashSQL = `DELETE FROM "` + this.itemsTableName + `" WHERE "hash"=?`
+	this.deleteByHashStmt, err = this.writeDB.Prepare(this.deleteByHashSQL)
+	if err != nil {
+		return err
+	}
+
+	this.statStmt, err = this.readDB.Prepare(`SELECT COUNT(*), IFNULL(SUM(headerSize+bodySize+metaSize), 0), IFNULL(SUM(headerSize+bodySize), 0) FROM "` + this.itemsTableName + `"`)
+	if err != nil {
+		return err
+	}
+
+	this.purgeStmt, err = this.readDB.Prepare(`SELECT "hash" FROM "` + this.itemsTableName + `" WHERE staleAt<=? LIMIT ?`)
+	if err != nil {
+		return err
+	}
+
+	this.deleteAllStmt, err = this.writeDB.Prepare(`DELETE FROM "` + this.itemsTableName + `"`)
+	if err != nil {
+		return err
+	}
+
+	this.listOlderItemsStmt, err = this.readDB.Prepare(`SELECT "hash" FROM "` + this.itemsTableName + `" ORDER BY "id" ASC LIMIT ?`)
+
+	this.insertHitSQL = `INSERT INTO "` + this.hitsTableName + `" ("hash", "week2Hits", "week") VALUES (?, 1, ?)`
+
+	this.increaseHitSQL = `INSERT INTO "` + this.hitsTableName + `" ("hash", "week2Hits", "week") VALUES (?, 1, ?) ON CONFLICT("hash") DO UPDATE SET "week1Hits"=IIF("week"=?, "week1Hits", "week2Hits"), "week2Hits"=IIF("week"=?, "week2Hits"+1, 1), "week"=?`
+
+	this.deleteHitByHashSQL = `DELETE FROM "` + this.hitsTableName + `" WHERE "hash"=?`
+
+	this.lfuHitsStmt, err = this.readDB.Prepare(`SELECT "hash" FROM "` + this.hitsTableName + `" ORDER BY "week" ASC, "week1Hits"+"week2Hits" ASC LIMIT ?`)
+	if err != nil {
+		return err
+	}
+
+	this.isReady = true
+
+	// 加载HashMap
+	go func() {
+		err := this.hashMap.Load(this)
+		if err != nil {
+			remotelogs.Error("LIST_FILE_DB", "load hash map failed: "+err.Error()+"(file: "+this.dbPath+")")
+		}
+	}()
+
+	return nil
+}
+
+func (this *FileListDB) IsReady() bool {
+	return this.isReady
+}
+
+func (this *FileListDB) Total() int64 {
+	return this.total
+}
+
+func (this *FileListDB) AddAsync(hash string, item *Item) error {
+	this.hashMap.Add(hash)
+
+	if item.StaleAt == 0 {
+		item.StaleAt = item.ExpiredAt
+	}
+
+	this.writeBatch.Add(this.insertSQL, hash, item.Key, item.HeaderSize, item.BodySize, item.MetaSize, item.ExpiredAt, item.StaleAt, item.Host, item.ServerId, utils.UnixTime())
+	return nil
+
+}
+
+func (this *FileListDB) AddSync(hash string, item *Item) error {
+	this.hashMap.Add(hash)
+
+	if item.StaleAt == 0 {
+		item.StaleAt = item.ExpiredAt
+	}
+
+	_, err := this.insertStmt.Exec(hash, item.Key, item.HeaderSize, item.BodySize, item.MetaSize, item.ExpiredAt, item.StaleAt, item.Host, item.ServerId, utils.UnixTime())
+	if err != nil {
+		return this.WrapError(err)
+	}
+
+	return nil
+}
+
+func (this *FileListDB) DeleteAsync(hash string) error {
+	this.hashMap.Delete(hash)
+
+	this.writeBatch.Add(this.deleteByHashSQL, hash)
+	return nil
+}
+
+func (this *FileListDB) DeleteSync(hash string) error {
+	this.hashMap.Delete(hash)
+
+	_, err := this.deleteByHashStmt.Exec(hash)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (this *FileListDB) ListExpiredItems(count int) (hashList []string, err error) {
+	if !this.isReady {
+		return nil, nil
+	}
+
+	if count <= 0 {
+		count = 100
+	}
+
+	rows, err := this.purgeStmt.Query(time.Now().Unix(), count)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = rows.Close()
+	}()
+
+	for rows.Next() {
+		var hash string
+		err = rows.Scan(&hash)
+		if err != nil {
+			return nil, err
+		}
+		hashList = append(hashList, hash)
+	}
+	return hashList, nil
+}
+
+func (this *FileListDB) ListLFUItems(count int) (hashList []string, err error) {
+	if !this.isReady {
+		return nil, nil
+	}
+
+	if count <= 0 {
+		count = 100
+	}
+
+	hashList, err = this.listLFUItems(count)
+	if err != nil {
+		return
+	}
+
+	if len(hashList) > count/2 {
+		return
+	}
+
+	// 不足补齐
+	olderHashList, err := this.listOlderItems(count - len(hashList))
+	if err != nil {
+		return nil, err
+	}
+	hashList = append(hashList, olderHashList...)
+	return
+}
+
+func (this *FileListDB) ListHashes(lastId int64) (hashList []string, maxId int64, err error) {
+	rows, err := this.selectHashListStmt.Query(lastId)
+	if err != nil {
+		return nil, 0, err
+	}
+	var id int64
+	var hash string
+	for rows.Next() {
+		err = rows.Scan(&id, &hash)
+		if err != nil {
+			_ = rows.Close()
+			return
+		}
+		maxId = id
+		hashList = append(hashList, hash)
+	}
+
+	_ = rows.Close()
+	return
+}
+
+func (this *FileListDB) IncreaseHitAsync(hash string) error {
+	var week = timeutil.Format("YW")
+	this.writeBatch.Add(this.increaseHitSQL, hash, week, week, week, week)
+	return nil
+}
+
+func (this *FileListDB) DeleteHitAsync(hash string) error {
+	this.writeBatch.Add(this.deleteHitByHashSQL, hash)
+	return nil
+}
+
+func (this *FileListDB) CleanPrefix(prefix string) error {
+	if !this.isReady {
+		return nil
+	}
+	var count = int64(10000)
+	var staleLife = 600             // TODO 需要可以设置
+	var unixTime = utils.UnixTime() // 只删除当前的，不删除新的
+	for {
+		result, err := this.writeDB.Exec(`UPDATE "`+this.itemsTableName+`" SET expiredAt=0,staleAt=? WHERE id IN (SELECT id FROM "`+this.itemsTableName+`" WHERE expiredAt>0 AND createdAt<=? AND INSTR("key", ?)=1 LIMIT `+types.String(count)+`)`, unixTime+int64(staleLife), unixTime, prefix)
+		if err != nil {
+			return this.WrapError(err)
+		}
+		affectedRows, err := result.RowsAffected()
+		if err != nil {
+			return err
+		}
+		if affectedRows < count {
+			return nil
+		}
+	}
+}
+
+func (this *FileListDB) CleanAll() error {
+	if !this.isReady {
+		return nil
+	}
+
+	_, err := this.deleteAllStmt.Exec()
+	if err != nil {
+		return this.WrapError(err)
+	}
+
+	this.hashMap.Clean()
+
+	return nil
+}
+
+func (this *FileListDB) Close() error {
+	this.isClosed = true
+	this.isReady = false
+
+	if this.existsByHashStmt != nil {
+		_ = this.existsByHashStmt.Close()
+	}
+	if this.insertStmt != nil {
+		_ = this.insertStmt.Close()
+	}
+	if this.selectByHashStmt != nil {
+		_ = this.selectByHashStmt.Close()
+	}
+	if this.selectHashListStmt != nil {
+		_ = this.selectHashListStmt.Close()
+	}
+	if this.deleteByHashStmt != nil {
+		_ = this.deleteByHashStmt.Close()
+	}
+	if this.statStmt != nil {
+		_ = this.statStmt.Close()
+	}
+	if this.purgeStmt != nil {
+		_ = this.purgeStmt.Close()
+	}
+	if this.deleteAllStmt != nil {
+		_ = this.deleteAllStmt.Close()
+	}
+	if this.listOlderItemsStmt != nil {
+		_ = this.listOlderItemsStmt.Close()
+	}
+	if this.lfuHitsStmt != nil {
+		_ = this.lfuHitsStmt.Close()
+	}
+
+	var errStrings []string
+
+	if this.readDB != nil {
+		err := this.readDB.Close()
+		if err != nil {
+			errStrings = append(errStrings, err.Error())
+		}
+	}
+
+	if this.writeDB != nil {
+		err := this.writeDB.Close()
+		if err != nil {
+			errStrings = append(errStrings, err.Error())
+		}
+	}
+
+	if this.writeBatch != nil {
+		this.writeBatch.Close()
+	}
+
+	if len(errStrings) == 0 {
+		return nil
+	}
+	return errors.New("close database failed: " + strings.Join(errStrings, ", "))
+}
+
+func (this *FileListDB) WrapError(err error) error {
+	if err == nil {
+		return nil
+	}
+	return errors.New(err.Error() + "(file: " + this.dbPath + ")")
+}
+
+// 初始化
+func (this *FileListDB) initTables(times int) error {
+	{
+		// expiredAt - 过期时间，用来判断有无过期
+		// staleAt - 过时缓存最大时间，用来清理缓存
+		_, err := this.writeDB.Exec(`CREATE TABLE IF NOT EXISTS "` + this.itemsTableName + `" (
+  "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  "hash" varchar(32),
+  "key" varchar(1024),
+  "tag" varchar(64),
+  "headerSize" integer DEFAULT 0,
+  "bodySize" integer DEFAULT 0,
+  "metaSize" integer DEFAULT 0,
+  "expiredAt" integer DEFAULT 0,
+  "staleAt" integer DEFAULT 0,
+  "createdAt" integer DEFAULT 0,
+  "host" varchar(128),
+  "serverId" integer
+);
+
+DROP INDEX IF EXISTS "createdAt";
+DROP INDEX IF EXISTS "expiredAt";
+DROP INDEX IF EXISTS "serverId";
+
+CREATE INDEX IF NOT EXISTS "staleAt"
+ON "` + this.itemsTableName + `" (
+  "staleAt" ASC
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS "hash"
+ON "` + this.itemsTableName + `" (
+  "hash" ASC
+);
+`)
+
+		if err != nil {
+			// 尝试删除重建
+			if times < 3 {
+				_, dropErr := this.writeDB.Exec(`DROP TABLE "` + this.itemsTableName + `"`)
+				if dropErr == nil {
+					return this.initTables(times + 1)
+				}
+				return this.WrapError(err)
+			}
+
+			return this.WrapError(err)
+		}
+	}
+
+	{
+		_, err := this.writeDB.Exec(`CREATE TABLE IF NOT EXISTS "` + this.hitsTableName + `" (
+  "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  "hash" varchar(32),
+  "week1Hits" integer DEFAULT 0,
+  "week2Hits" integer DEFAULT 0,
+  "week" varchar(6)
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS "hits_hash"
+ON "` + this.hitsTableName + `" (
+  "hash" ASC
+);
+`)
+		if err != nil {
+			// 尝试删除重建
+			if times < 3 {
+				_, dropErr := this.writeDB.Exec(`DROP TABLE "` + this.hitsTableName + `"`)
+				if dropErr == nil {
+					return this.initTables(times + 1)
+				}
+				return this.WrapError(err)
+			}
+
+			return this.WrapError(err)
+		}
+	}
+
+	return nil
+}
+
+func (this *FileListDB) listLFUItems(count int) (hashList []string, err error) {
+	rows, err := this.lfuHitsStmt.Query(count)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = rows.Close()
+	}()
+
+	for rows.Next() {
+		var hash string
+		err = rows.Scan(&hash)
+		if err != nil {
+			return nil, err
+		}
+		hashList = append(hashList, hash)
+	}
+
+	return hashList, nil
+}
+
+func (this *FileListDB) listOlderItems(count int) (hashList []string, err error) {
+	rows, err := this.listOlderItemsStmt.Query(count)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = rows.Close()
+	}()
+
+	for rows.Next() {
+		var hash string
+		err = rows.Scan(&hash)
+		if err != nil {
+			return nil, err
+		}
+		hashList = append(hashList, hash)
+	}
+
+	return hashList, nil
+}

internal/caches/list_file_hash_map.go

@@ -0,0 +1,114 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"math/big"
+	"sync"
+)
+
+// FileListHashMap 文件Hash列表
+type FileListHashMap struct {
+	m map[uint64]zero.Zero
+
+	locker      sync.RWMutex
+	isAvailable bool
+	isReady     bool
+}
+
+func NewFileListHashMap() *FileListHashMap {
+	return &FileListHashMap{
+		m:           map[uint64]zero.Zero{},
+		isAvailable: false,
+		isReady:     false,
+	}
+}
+
+func (this *FileListHashMap) Load(db *FileListDB) error {
+	// 如果系统内存过小，我们不缓存
+	if utils.SystemMemoryGB() < 3 {
+		return nil
+	}
+
+	this.isAvailable = true
+
+	var lastId int64
+	for {
+		hashList, maxId, err := db.ListHashes(lastId)
+		if err != nil {
+			return err
+		}
+		if len(hashList) == 0 {
+			break
+		}
+		this.AddHashes(hashList)
+		lastId = maxId
+	}
+
+	this.isReady = true
+	return nil
+}
+
+func (this *FileListHashMap) Add(hash string) {
+	if !this.isAvailable {
+		return
+	}
+
+	this.locker.Lock()
+	this.m[this.bigInt(hash)] = zero.New()
+	this.locker.Unlock()
+}
+
+func (this *FileListHashMap) AddHashes(hashes []string) {
+	if !this.isAvailable {
+		return
+	}
+
+	this.locker.Lock()
+	for _, hash := range hashes {
+		this.m[this.bigInt(hash)] = zero.New()
+	}
+	this.locker.Unlock()
+}
+
+func (this *FileListHashMap) Delete(hash string) {
+	if !this.isAvailable {
+		return
+	}
+
+	this.locker.Lock()
+	delete(this.m, this.bigInt(hash))
+	this.locker.Unlock()
+}
+
+func (this *FileListHashMap) Exist(hash string) bool {
+	if !this.isAvailable {
+		return true
+	}
+	if !this.isReady {
+		// 只有完全Ready时才能判断是否为false
+		return true
+	}
+	this.locker.RLock()
+	_, ok := this.m[this.bigInt(hash)]
+	this.locker.RUnlock()
+	return ok
+}
+
+func (this *FileListHashMap) Clean() {
+	this.locker.Lock()
+	this.m = map[uint64]zero.Zero{}
+	this.locker.Unlock()
+}
+
+func (this *FileListHashMap) IsReady() bool {
+	return this.isReady
+}
+
+func (this *FileListHashMap) bigInt(hash string) uint64 {
+	var bigInt = big.NewInt(0)
+	bigInt.SetString(hash, 16)
+	return bigInt.Uint64()
+}

internal/caches/list_file_hash_map_test.go

@@ -0,0 +1,91 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/types"
+	stringutil "github.com/iwind/TeaGo/utils/string"
+	"math/big"
+	"runtime"
+	"strconv"
+	"testing"
+)
+
+func TestFileListHashMap_Memory(t *testing.T) {
+	var stat1 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat1)
+
+	var m = caches.NewFileListHashMap()
+
+	for i := 0; i < 1_000_000; i++ {
+		m.Add(stringutil.Md5(types.String(i)))
+	}
+
+	var stat2 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat2)
+
+	t.Log("ready", (stat2.Alloc-stat1.Alloc)/1024/1024, "M")
+}
+
+func TestFileListHashMap_Memory2(t *testing.T) {
+	var stat1 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat1)
+
+	var m = map[uint64]zero.Zero{}
+
+	for i := 0; i < 1_000_000; i++ {
+		m[uint64(i)] = zero.New()
+	}
+
+	var stat2 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat2)
+
+	t.Log("ready", (stat2.Alloc-stat1.Alloc)/1024/1024, "M")
+}
+
+func TestFileListHashMap_BigInt(t *testing.T) {
+	for _, s := range []string{"1", "2", "3", "123", "123456"} {
+		var hash = stringutil.Md5(s)
+
+		var bigInt = big.NewInt(0)
+		bigInt.SetString(hash, 16)
+		t.Log(s, "=>", bigInt.Uint64(), "hash:", hash, "format:", strconv.FormatUint(bigInt.Uint64(), 16))
+	}
+}
+
+func TestFileListHashMap_Load(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	var m = caches.NewFileListHashMap()
+	err = m.Load(list.GetDB("abc"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.Add("abc")
+
+	for _, hash := range []string{"33347bb4441265405347816cad36a0f8", "a", "abc", "123"} {
+		t.Log(hash, "=>", m.Exist(hash))
+	}
+}
+
+func Benchmark_BigInt(b *testing.B) {
+	var hash = stringutil.Md5("123456")
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		var bigInt = big.NewInt(0)
+		bigInt.SetString(hash, 16)
+		_ = bigInt.Uint64()
+	}
+}

internal/caches/list_file_test.go

@@ -1,8 +1,9 @@
 // Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 
-package caches
+package caches_test
 
 import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
 	"github.com/TeaOSLab/EdgeNode/internal/goman"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/rands"
@@ -15,23 +16,33 @@ import (
 )
 
 func TestFileList_Init(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer func() {
+		_ = list.Close()
+	}()
 	t.Log("ok")
 }
 
 func TestFileList_Add(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	err = list.Add(stringutil.Md5("123456"), &Item{
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	var hash = stringutil.Md5("123456")
+	t.Log("db index:", list.GetDBIndex(hash))
+	err = list.Add(hash, &caches.Item{
 		Key:        "123456",
-		ExpiredAt:  time.Now().Unix(),
+		ExpiredAt:  time.Now().Unix() + 1,
 		HeaderSize: 1,
 		MetaSize:   2,
 		BodySize:   3,
@@ -41,19 +52,27 @@ func TestFileList_Add(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+
+	t.Log(list.Exist(hash))
+
 	t.Log("ok")
 }
 
 func TestFileList_Add_Many(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	before := time.Now()
-	for i := 0; i < 2000_0000; i++ {
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	var before = time.Now()
+	for i := 0; i < 10_000_000; i++ {
 		u := "https://edge.teaos.cn/123456" + strconv.Itoa(i)
-		_ = list.Add(stringutil.Md5(u), &Item{
+		_ = list.Add(stringutil.Md5(u), &caches.Item{
 			Key:        u,
 			ExpiredAt:  time.Now().Unix() + 3600,
 			HeaderSize: 1,
@@ -72,36 +91,46 @@ func TestFileList_Add_Many(t *testing.T) {
 }
 
 func TestFileList_Exist(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	before := time.Now()
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	total, _ := list.Count()
+	t.Log("total:", total)
+
+	var before = time.Now()
 	defer func() {
 		t.Log(time.Since(before).Seconds()*1000, "ms")
 	}()
 	{
-		exists, err := list.Exist(stringutil.Md5("123456"))
+		var hash = stringutil.Md5("123456")
+		exists, err := list.Exist(hash)
 		if err != nil {
 			t.Fatal(err)
 		}
-		t.Log("exists:", exists)
+		t.Log(hash, "exists:", exists)
 	}
 	{
-		exists, err := list.Exist(stringutil.Md5("http://edge.teaos.cn/1234561"))
+		var hash = stringutil.Md5("http://edge.teaos.cn/1234561")
+		exists, err := list.Exist(hash)
 		if err != nil {
 			t.Fatal(err)
 		}
-		t.Log("exists:", exists)
+		t.Log(hash, "exists:", exists)
 	}
 }
 
 func TestFileList_Exist_Many_DB(t *testing.T) {
 	// 测试在多个数据库下的性能
-	var listSlice = []ListInterface{}
+	var listSlice = []caches.ListInterface{}
 	for i := 1; i <= 10; i++ {
-		list := NewFileList(Tea.Root + "/data/data" + strconv.Itoa(i))
+		list := caches.NewFileList(Tea.Root + "/data/data" + strconv.Itoa(i))
 		err := list.Init()
 		if err != nil {
 			t.Fatal(err)
@@ -151,13 +180,18 @@ func TestFileList_Exist_Many_DB(t *testing.T) {
 }
 
 func TestFileList_CleanPrefix(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
 	before := time.Now()
-	err = list.CleanPrefix("1234")
+	err = list.CleanPrefix("123")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -165,12 +199,17 @@ func TestFileList_CleanPrefix(t *testing.T) {
 }
 
 func TestFileList_Remove(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	list.OnRemove(func(item *Item) {
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	list.OnRemove(func(item *caches.Item) {
 		t.Logf("remove %#v", item)
 	})
 	err = list.Remove(stringutil.Md5("123456"))
@@ -178,30 +217,71 @@ func TestFileList_Remove(t *testing.T) {
 		t.Fatal(err)
 	}
 	t.Log("ok")
+
+	t.Log("===count===")
+	t.Log(list.Count())
 }
 
 func TestFileList_Purge(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	_, err = list.Purge(2, func(hash string) error {
+	defer func() {
+		_ = list.Close()
+	}()
+
+	var count = 0
+	_, err = list.Purge(caches.CountFileDB*2, func(hash string) error {
 		t.Log(hash)
+		count++
 		return nil
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	t.Log("ok")
+	t.Log("ok, purged", count, "items")
 }
 
-func TestFileList_Stat(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+func TestFileList_PurgeLFU(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err = list.IncreaseHit(stringutil.Md5("123456"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var count = 0
+	err = list.PurgeLFU(caches.CountFileDB*2, func(hash string) error {
+		t.Log(hash)
+		count++
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok, purged", count, "items")
+}
+
+func TestFileList_Stat(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
 	stat, err := list.Stat(nil)
 	if err != nil {
 		t.Fatal(err)
@@ -210,12 +290,12 @@ func TestFileList_Stat(t *testing.T) {
 }
 
 func TestFileList_Count(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	before := time.Now()
+	var before = time.Now()
 	count, err := list.Count()
 	if err != nil {
 		t.Fatal(err)
@@ -225,7 +305,7 @@ func TestFileList_Count(t *testing.T) {
 }
 
 func TestFileList_CleanAll(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	list := caches.NewFileList(Tea.Root + "/data")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -238,58 +318,17 @@ func TestFileList_CleanAll(t *testing.T) {
 	t.Log(list.Count())
 }
 
-func TestFileList_Conflict(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data").(*FileList)
-	err := list.Init()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rows, err := list.purgeStmt.Query(time.Now().Unix(), 1000)
-	if err != nil {
-		t.Fatal(err)
-	}
-	go func() {
-		time.Sleep(5 * time.Second)
-		_ = rows.Close()
-	}()
-
-	t.Log("before exists")
-	t.Log(list.Exist("123456"))
-	t.Log("after exists")
-}
-
-func TestFileList_IIF(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data").(*FileList)
-	err := list.Init()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rows, err := list.db.Query("SELECT IIF(0, 2, 3)")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer func() {
-		_ = rows.Close()
-	}()
-
-	if rows.Next() {
-		var result int
-		err = rows.Scan(&result)
-		if err != nil {
-			t.Fatal(err)
-		}
-		t.Log("result:", result)
-	}
-}
-
 func TestFileList_IncreaseHit(t *testing.T) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
 	var before = time.Now()
 	defer func() {
 		t.Log(time.Since(before).Seconds()*1000, "ms")
@@ -303,13 +342,33 @@ func TestFileList_IncreaseHit(t *testing.T) {
 	t.Log("ok")
 }
 
+func TestFileList_UpgradeV3(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p43").(*caches.FileList)
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err = list.UpgradeV3("/Users/WorkSpace/EdgeProject/EdgeCache/p43", false)
+	if err != nil {
+		t.Log(err)
+		return
+	}
+	t.Log("ok")
+}
+
 func BenchmarkFileList_Exist(b *testing.B) {
-	list := NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		b.Fatal(err)
 	}
+	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		_, _ = list.Exist("f0eb5b87e0b0041f3917002c0707475f")
+		_, _ = list.Exist("f0eb5b87e0b0041f3917002c0707475f" + types.String(i))
 	}
 }

internal/caches/manager.go

@@ -6,7 +6,6 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/events"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/iwind/TeaGo/lists"
-	"github.com/iwind/TeaGo/logs"
 	"github.com/iwind/TeaGo/types"
 	"strconv"
 	"sync"
@@ -16,7 +15,7 @@ var SharedManager = NewManager()
 
 func init() {
 	events.On(events.EventQuit, func() {
-		logs.Println("CACHE", "quiting cache manager")
+		remotelogs.Println("CACHE", "quiting cache manager")
 		SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{})
 	})
 }
@@ -25,6 +24,7 @@ func init() {
 type Manager struct {
 	// 全局配置
 	MaxDiskCapacity   *shared.SizeCapacity
+	DiskDir           string
 	MaxMemoryCapacity *shared.SizeCapacity
 
 	policyMap  map[int64]*serverconfigs.HTTPCachePolicy // policyId => []*Policy
@@ -49,13 +49,18 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 
 	newPolicyIds := []int64{}
 	for _, policy := range newPolicies {
+		// 使用节点单独的缓存目录
+		if len(this.DiskDir) > 0 {
+			policy.UpdateDiskDir(this.DiskDir)
+		}
+
 		newPolicyIds = append(newPolicyIds, policy.Id)
 	}
 
 	// 停止旧有的
 	for _, oldPolicy := range this.policyMap {
 		if !lists.ContainsInt64(newPolicyIds, oldPolicy.Id) {
-			remotelogs.Error("CACHE", "remove policy "+strconv.FormatInt(oldPolicy.Id, 10))
+			remotelogs.Println("CACHE", "remove policy "+strconv.FormatInt(oldPolicy.Id, 10))
 			delete(this.policyMap, oldPolicy.Id)
 			storage, ok := this.storageMap[oldPolicy.Id]
 			if ok {
@@ -85,7 +90,7 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 	for _, policy := range this.policyMap {
 		storage, ok := this.storageMap[policy.Id]
 		if !ok {
-			storage := this.NewStorageWithPolicy(policy)
+			storage = this.NewStorageWithPolicy(policy)
 			if storage == nil {
 				remotelogs.Error("CACHE", "can not find storage type '"+policy.Type+"'")
 				continue
@@ -99,14 +104,26 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 		} else {
 			// 检查policy是否有变化
 			if !storage.Policy().IsSame(policy) {
-				remotelogs.Println("CACHE", "policy "+strconv.FormatInt(policy.Id, 10)+" changed")
+				// 检查是否可以直接修改
+				if storage.CanUpdatePolicy(policy) {
+					err := policy.Init()
+					if err != nil {
+						remotelogs.Error("CACHE", "reload policy '"+types.String(policy.Id)+"' failed: init policy failed: "+err.Error())
+						continue
+					}
+					remotelogs.Println("CACHE", "reload policy '"+types.String(policy.Id)+"'")
+					storage.UpdatePolicy(policy)
+					continue
+				}
+
+				remotelogs.Println("CACHE", "restart policy '"+types.String(policy.Id)+"'")
 
 				// 停止老的
 				storage.Stop()
 				delete(this.storageMap, policy.Id)
 
 				// 启动新的
-				storage := this.NewStorageWithPolicy(policy)
+				storage = this.NewStorageWithPolicy(policy)
 				if storage == nil {
 					remotelogs.Error("CACHE", "can not find storage type '"+policy.Type+"'")
 					continue
@@ -196,3 +213,15 @@ func (this *Manager) FindAllCachePaths() []string {
 	}
 	return result
 }
+
+// FindAllStorages 读取所有缓存存储
+func (this *Manager) FindAllStorages() []StorageInterface {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	var storages = []StorageInterface{}
+	for _, storage := range this.storageMap {
+		storages = append(storages, storage)
+	}
+	return storages
+}

internal/caches/manager_test.go

@@ -2,19 +2,20 @@ package caches
 
 import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
 	"github.com/iwind/TeaGo/Tea"
 	"testing"
 )
 
 func TestManager_UpdatePolicies(t *testing.T) {
 	{
-		policies := []*serverconfigs.HTTPCachePolicy{}
+		var policies = []*serverconfigs.HTTPCachePolicy{}
 		SharedManager.UpdatePolicies(policies)
 		printManager(t)
 	}
 
 	{
-		policies := []*serverconfigs.HTTPCachePolicy{
+		var policies = []*serverconfigs.HTTPCachePolicy{
 			{
 				Id:   1,
 				Type: serverconfigs.CachePolicyStorageFile,
@@ -42,7 +43,7 @@ func TestManager_UpdatePolicies(t *testing.T) {
 	}
 
 	{
-		policies := []*serverconfigs.HTTPCachePolicy{
+		var policies = []*serverconfigs.HTTPCachePolicy{
 			{
 				Id:   1,
 				Type: serverconfigs.CachePolicyStorageFile,
@@ -71,6 +72,50 @@ func TestManager_UpdatePolicies(t *testing.T) {
 	}
 }
 
+func TestManager_ChangePolicy_Memory(t *testing.T) {
+	var policies = []*serverconfigs.HTTPCachePolicy{
+		{
+			Id:       1,
+			Type:     serverconfigs.CachePolicyStorageMemory,
+			Options:  map[string]interface{}{},
+			Capacity: &shared.SizeCapacity{Count: 1, Unit: shared.SizeCapacityUnitGB},
+		},
+	}
+	SharedManager.UpdatePolicies(policies)
+	SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{
+		{
+			Id:       1,
+			Type:     serverconfigs.CachePolicyStorageMemory,
+			Options:  map[string]interface{}{},
+			Capacity: &shared.SizeCapacity{Count: 2, Unit: shared.SizeCapacityUnitGB},
+		},
+	})
+}
+
+func TestManager_ChangePolicy_File(t *testing.T) {
+	var policies = []*serverconfigs.HTTPCachePolicy{
+		{
+			Id:       1,
+			Type:     serverconfigs.CachePolicyStorageFile,
+			Options:  map[string]interface{}{
+				"dir": Tea.Root + "/data/cache-index/p1",
+			},
+			Capacity: &shared.SizeCapacity{Count: 1, Unit: shared.SizeCapacityUnitGB},
+		},
+	}
+	SharedManager.UpdatePolicies(policies)
+	SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{
+		{
+			Id:       1,
+			Type:     serverconfigs.CachePolicyStorageFile,
+			Options:  map[string]interface{}{
+				"dir": Tea.Root + "/data/cache-index/p1",
+			},
+			Capacity: &shared.SizeCapacity{Count: 2, Unit: shared.SizeCapacityUnitGB},
+		},
+	})
+}
+
 func printManager(t *testing.T) {
 	t.Log("===manager==")
 	t.Log("storage:")

internal/caches/max_open_files.go

@@ -0,0 +1,52 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"sync/atomic"
+	"time"
+)
+
+const (
+	modeSlow int32 = 1
+	modeFast int32 = 2
+)
+
+// MaxOpenFiles max open files manager
+type MaxOpenFiles struct {
+	ticker *time.Ticker
+	mode   int32
+}
+
+func NewMaxOpenFiles() *MaxOpenFiles {
+	var f = &MaxOpenFiles{}
+	f.ticker = time.NewTicker(1 * time.Second)
+	f.init()
+	return f
+}
+
+func (this *MaxOpenFiles) init() {
+	goman.New(func() {
+		for range this.ticker.C {
+			// reset mode
+			atomic.StoreInt32(&this.mode, modeFast)
+		}
+	})
+}
+
+func (this *MaxOpenFiles) Fast() {
+	atomic.AddInt32(&this.mode, modeFast)
+}
+
+func (this *MaxOpenFiles) FinishAll() {
+	this.Fast()
+}
+
+func (this *MaxOpenFiles) Slow() {
+	atomic.StoreInt32(&this.mode, modeSlow)
+}
+
+func (this *MaxOpenFiles) Next() bool {
+	return atomic.LoadInt32(&this.mode) != modeSlow
+}

internal/caches/max_open_files_test.go

@@ -0,0 +1,35 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"testing"
+	"time"
+)
+
+func TestNewMaxOpenFiles(t *testing.T) {
+	var maxOpenFiles = caches.NewMaxOpenFiles()
+	maxOpenFiles.Fast()
+	t.Log("fast:", maxOpenFiles.Next())
+
+	maxOpenFiles.Slow()
+	t.Log("slow:", maxOpenFiles.Next())
+	time.Sleep(1*time.Second + 1*time.Millisecond)
+	t.Log("slow 1 second:", maxOpenFiles.Next())
+
+	maxOpenFiles.Slow()
+	t.Log("slow:", maxOpenFiles.Next())
+
+	maxOpenFiles.Slow()
+	t.Log("slow:", maxOpenFiles.Next())
+
+	time.Sleep(1 * time.Second)
+	t.Log("slow 1 second:", maxOpenFiles.Next())
+
+	maxOpenFiles.Slow()
+	t.Log("slow:", maxOpenFiles.Next())
+
+	maxOpenFiles.Fast()
+	t.Log("fast:", maxOpenFiles.Next())
+}

internal/caches/open_file.go

@@ -0,0 +1,34 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"io"
+	"os"
+)
+
+type OpenFile struct {
+	fp      *os.File
+	meta    []byte
+	header  []byte
+	version int64
+}
+
+func NewOpenFile(fp *os.File, meta []byte, header []byte, version int64) *OpenFile {
+	return &OpenFile{
+		fp:      fp,
+		meta:    meta,
+		header:  header,
+		version: version,
+	}
+}
+
+func (this *OpenFile) SeekStart() error {
+	_, err := this.fp.Seek(0, io.SeekStart)
+	return err
+}
+
+func (this *OpenFile) Close() error {
+	this.meta = nil
+	return this.fp.Close()
+}

internal/caches/open_file_cache.go

@@ -0,0 +1,163 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/linkedlist"
+	"github.com/fsnotify/fsnotify"
+	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/types"
+	"path/filepath"
+	"runtime"
+	"sync"
+	"time"
+)
+
+type OpenFileCache struct {
+	poolMap  map[string]*OpenFilePool // file path => Pool
+	poolList *linkedlist.List
+	watcher  *fsnotify.Watcher
+
+	locker sync.Mutex
+
+	maxSize int
+	count   int
+}
+
+func NewOpenFileCache(maxSize int) (*OpenFileCache, error) {
+	if maxSize <= 0 {
+		maxSize = 16384
+	}
+
+	var cache = &OpenFileCache{
+		maxSize:  maxSize,
+		poolMap:  map[string]*OpenFilePool{},
+		poolList: linkedlist.NewList(),
+	}
+
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		return nil, err
+	}
+	cache.watcher = watcher
+
+	goman.New(func() {
+		for event := range watcher.Events {
+			if runtime.GOOS == "linux" || event.Op&fsnotify.Chmod != fsnotify.Chmod {
+				cache.Close(event.Name)
+			}
+		}
+	})
+
+	return cache, nil
+}
+
+func (this *OpenFileCache) Get(filename string) *OpenFile {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+	pool, ok := this.poolMap[filename]
+	if ok {
+		file, consumed := pool.Get()
+		if consumed {
+			this.count--
+		}
+		return file
+	}
+	return nil
+}
+
+func (this *OpenFileCache) Put(filename string, file *OpenFile) {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	pool, ok := this.poolMap[filename]
+	var success bool
+	if ok {
+		success = pool.Put(file)
+	} else {
+		_ = this.watcher.Add(filename)
+		pool = NewOpenFilePool(filename)
+		pool.version = file.version
+		this.poolMap[filename] = pool
+		success = pool.Put(file)
+	}
+	this.poolList.Push(pool.linkItem)
+
+	// 检查长度
+	if success {
+		this.count++
+
+		// 如果超过当前容量，则关闭最早的
+		if this.count > this.maxSize {
+			var delta = this.maxSize / 100 // 清理1%
+			if delta == 0 {
+				delta = 1
+			}
+			for i := 0; i < delta; i++ {
+				var head = this.poolList.Head()
+				if head == nil {
+					break
+				}
+
+				var headPool = head.Value.(*OpenFilePool)
+				headFile, consumed := headPool.Get()
+				if consumed {
+					this.count--
+					if headFile != nil {
+						_ = headFile.Close()
+					}
+				}
+
+				if headPool.Len() == 0 {
+					delete(this.poolMap, headPool.filename)
+					this.poolList.Remove(head)
+					_ = this.watcher.Remove(headPool.filename)
+				}
+			}
+		}
+	}
+}
+
+func (this *OpenFileCache) Close(filename string) {
+	this.locker.Lock()
+
+	pool, ok := this.poolMap[filename]
+	if ok {
+		delete(this.poolMap, filename)
+		this.poolList.Remove(pool.linkItem)
+		_ = this.watcher.Remove(filename)
+		this.count -= pool.Len()
+	}
+
+	this.locker.Unlock()
+
+	// 在locker之外，提升性能
+	if ok {
+		pool.Close()
+	}
+}
+
+func (this *OpenFileCache) CloseAll() {
+	this.locker.Lock()
+	for _, pool := range this.poolMap {
+		pool.Close()
+	}
+	this.poolMap = map[string]*OpenFilePool{}
+	this.poolList.Reset()
+	_ = this.watcher.Close()
+	this.locker.Unlock()
+}
+
+func (this *OpenFileCache) Debug() {
+	var ticker = time.NewTicker(5 * time.Second)
+	goman.New(func() {
+		for range ticker.C {
+			logs.Println("==== " + types.String(this.count) + " ====")
+			this.poolList.Range(func(item *linkedlist.Item) (goNext bool) {
+				logs.Println(filepath.Base(item.Value.(*OpenFilePool).Filename()), item.Value.(*OpenFilePool).Len())
+				return true
+			})
+		}
+	})
+}

internal/caches/open_file_pool.go

@@ -0,0 +1,76 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/linkedlist"
+)
+
+type OpenFilePool struct {
+	c        chan *OpenFile
+	linkItem *linkedlist.Item
+	filename string
+	version  int64
+}
+
+func NewOpenFilePool(filename string) *OpenFilePool {
+	var pool = &OpenFilePool{
+		filename: filename,
+		c:        make(chan *OpenFile, 1024),
+		version:  utils.UnixTimeMilli(),
+	}
+	pool.linkItem = linkedlist.NewItem(pool)
+	return pool
+}
+
+func (this *OpenFilePool) Filename() string {
+	return this.filename
+}
+
+func (this *OpenFilePool) Get() (*OpenFile, bool) {
+	select {
+	case file := <-this.c:
+		err := file.SeekStart()
+		if err != nil {
+			_ = file.Close()
+			return nil, true
+		}
+		file.version = this.version
+
+		return file, true
+	default:
+		return nil, false
+	}
+}
+
+func (this *OpenFilePool) Put(file *OpenFile) bool {
+	if this.version > 0 && file.version > 0 && file.version != this.version {
+		_ = file.Close()
+		return false
+	}
+	select {
+	case this.c <- file:
+		return true
+	default:
+		// 多余的直接关闭
+		_ = file.Close()
+		return false
+	}
+}
+
+func (this *OpenFilePool) Len() int {
+	return len(this.c)
+}
+
+func (this *OpenFilePool) Close() {
+Loop:
+	for {
+		select {
+		case file := <-this.c:
+			_ = file.Close()
+		default:
+			break Loop
+		}
+	}
+}

internal/caches/open_file_pool_test.go

@@ -0,0 +1,17 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"testing"
+)
+
+func TestOpenFilePool_Get(t *testing.T) {
+	var pool = caches.NewOpenFilePool("a")
+	t.Log(pool.Filename())
+	t.Log(pool.Get())
+	t.Log(pool.Put(caches.NewOpenFile(nil, nil, nil, 0)))
+	t.Log(pool.Get())
+	t.Log(pool.Get())
+}

internal/caches/partial_ranges.go

@@ -0,0 +1,189 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"encoding/json"
+	"errors"
+	"os"
+)
+
+// PartialRanges 内容分区范围定义
+type PartialRanges struct {
+	Ranges [][2]int64 `json:"ranges"`
+}
+
+// NewPartialRanges 获取新对象
+func NewPartialRanges() *PartialRanges {
+	return &PartialRanges{Ranges: [][2]int64{}}
+}
+
+// NewPartialRangesFromJSON 从JSON中解析范围
+func NewPartialRangesFromJSON(data []byte) (*PartialRanges, error) {
+	var rs = NewPartialRanges()
+	err := json.Unmarshal(data, &rs)
+	if err != nil {
+		return nil, err
+	}
+
+	return rs, nil
+}
+
+func NewPartialRangesFromFile(path string) (*PartialRanges, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	return NewPartialRangesFromJSON(data)
+}
+
+// Add 添加新范围
+func (this *PartialRanges) Add(begin int64, end int64) {
+	if begin > end {
+		begin, end = end, begin
+	}
+
+	var nr = [2]int64{begin, end}
+
+	var count = len(this.Ranges)
+	if count == 0 {
+		this.Ranges = [][2]int64{nr}
+		return
+	}
+
+	// insert
+	// TODO 将来使用二分法改进
+	var index = -1
+	for i, r := range this.Ranges {
+		if r[0] > begin || (r[0] == begin && r[1] >= end) {
+			index = i
+			this.Ranges = append(this.Ranges, [2]int64{})
+			copy(this.Ranges[index+1:], this.Ranges[index:])
+			this.Ranges[index] = nr
+			break
+		}
+	}
+
+	if index == -1 {
+		index = count
+		this.Ranges = append(this.Ranges, nr)
+	}
+
+	this.merge(index)
+}
+
+// Contains 检查是否包含某个范围
+func (this *PartialRanges) Contains(begin int64, end int64) bool {
+	if len(this.Ranges) == 0 {
+		return false
+	}
+
+	// TODO 使用二分法查找改进性能
+	for _, r2 := range this.Ranges {
+		if r2[0] <= begin && r2[1] >= end {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Nearest 查找最近的某个范围
+func (this *PartialRanges) Nearest(begin int64, end int64) (r [2]int64, ok bool) {
+	if len(this.Ranges) == 0 {
+		return
+	}
+
+	// TODO 使用二分法查找改进性能
+	for _, r2 := range this.Ranges {
+		if r2[0] <= begin && r2[1] > begin {
+			r = [2]int64{begin, this.min(end, r2[1])}
+			ok = true
+			return
+		}
+	}
+	return
+}
+
+// AsJSON 转换为JSON
+func (this *PartialRanges) AsJSON() ([]byte, error) {
+	return json.Marshal(this)
+}
+
+// WriteToFile 写入到文件中
+func (this *PartialRanges) WriteToFile(path string) error {
+	data, err := this.AsJSON()
+	if err != nil {
+		return errors.New("convert to json failed: " + err.Error())
+	}
+	return os.WriteFile(path, data, 0666)
+}
+
+// ReadFromFile 从文件中读取
+func (this *PartialRanges) ReadFromFile(path string) (*PartialRanges, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	return NewPartialRangesFromJSON(data)
+}
+
+func (this *PartialRanges) Max() int64 {
+	if len(this.Ranges) > 0 {
+		return this.Ranges[len(this.Ranges)-1][1]
+	}
+	return 0
+}
+
+func (this *PartialRanges) merge(index int) {
+	// forward
+	var lastIndex = index
+	for i := index; i >= 1; i-- {
+		var curr = this.Ranges[i]
+		var prev = this.Ranges[i-1]
+		var w1 = this.w(curr)
+		var w2 = this.w(prev)
+		if w1+w2 >= this.max(curr[1], prev[1])-this.min(curr[0], prev[0])-1 {
+			prev = [2]int64{this.min(curr[0], prev[0]), this.max(curr[1], prev[1])}
+			this.Ranges[i-1] = prev
+			this.Ranges = append(this.Ranges[:i], this.Ranges[i+1:]...)
+			lastIndex = i - 1
+		} else {
+			break
+		}
+	}
+
+	// backward
+	index = lastIndex
+	for index < len(this.Ranges)-1 {
+		var curr = this.Ranges[index]
+		var next = this.Ranges[index+1]
+		var w1 = this.w(curr)
+		var w2 = this.w(next)
+		if w1+w2 >= this.max(curr[1], next[1])-this.min(curr[0], next[0])-1 {
+			curr = [2]int64{this.min(curr[0], next[0]), this.max(curr[1], next[1])}
+			this.Ranges = append(this.Ranges[:index], this.Ranges[index+1:]...)
+			this.Ranges[index] = curr
+		} else {
+			break
+		}
+	}
+}
+
+func (this *PartialRanges) w(r [2]int64) int64 {
+	return r[1] - r[0]
+}
+
+func (this *PartialRanges) min(n1 int64, n2 int64) int64 {
+	if n1 <= n2 {
+		return n1
+	}
+	return n2
+}
+
+func (this *PartialRanges) max(n1 int64, n2 int64) int64 {
+	if n1 >= n2 {
+		return n1
+	}
+	return n2
+}

internal/caches/partial_ranges_test.go

@@ -0,0 +1,175 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/iwind/TeaGo/assert"
+	"github.com/iwind/TeaGo/logs"
+	"testing"
+)
+
+func TestNewPartialRanges(t *testing.T) {
+	var r = caches.NewPartialRanges()
+	r.Add(1, 100)
+	r.Add(50, 300)
+
+	r.Add(30, 80)
+	r.Add(30, 100)
+	r.Add(30, 400)
+	r.Add(1000, 10000)
+	r.Add(200, 1000)
+	r.Add(200, 10040)
+
+	logs.PrintAsJSON(r.Ranges, t)
+	t.Log("max:", r.Max())
+}
+
+func TestNewPartialRanges1(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var r = caches.NewPartialRanges()
+	r.Add(1, 100)
+	r.Add(1, 101)
+	r.Add(1, 102)
+	r.Add(2, 103)
+	r.Add(200, 300)
+	r.Add(1, 1000)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+	a.IsTrue(len(rs) == 1)
+	if len(rs) == 1 {
+		a.IsTrue(rs[0][0] == 1)
+		a.IsTrue(rs[0][1] == 1000)
+	}
+}
+
+func TestNewPartialRanges2(t *testing.T) {
+	// low -> high
+	var r = caches.NewPartialRanges()
+	r.Add(1, 100)
+	r.Add(1, 101)
+	r.Add(1, 102)
+	r.Add(2, 103)
+	r.Add(200, 300)
+	r.Add(301, 302)
+	r.Add(303, 304)
+	r.Add(250, 400)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+}
+
+func TestNewPartialRanges3(t *testing.T) {
+	// high -> low
+	var r = caches.NewPartialRanges()
+	r.Add(301, 302)
+	r.Add(303, 304)
+	r.Add(200, 300)
+	r.Add(250, 400)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+}
+
+func TestNewPartialRanges4(t *testing.T) {
+	// nearby
+	var r = caches.NewPartialRanges()
+	r.Add(301, 302)
+	r.Add(303, 304)
+	r.Add(305, 306)
+
+	r.Add(417, 417)
+	r.Add(410, 415)
+	r.Add(400, 409)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+	t.Log(r.Contains(400, 416))
+}
+
+func TestNewPartialRanges5(t *testing.T) {
+	var r = caches.NewPartialRanges()
+	for j := 0; j < 1000; j++ {
+		r.Add(int64(j), int64(j+100))
+	}
+	logs.PrintAsJSON(r.Ranges, t)
+}
+
+func TestNewPartialRanges_Nearest(t *testing.T) {
+	{
+		// nearby
+		var r = caches.NewPartialRanges()
+		r.Add(301, 400)
+		r.Add(401, 500)
+		r.Add(501, 600)
+
+		t.Log(r.Nearest(100, 200))
+		t.Log(r.Nearest(300, 350))
+		t.Log(r.Nearest(302, 350))
+	}
+
+	{
+		// nearby
+		var r = caches.NewPartialRanges()
+		r.Add(301, 400)
+		r.Add(450, 500)
+		r.Add(550, 600)
+
+		t.Log(r.Nearest(100, 200))
+		t.Log(r.Nearest(300, 350))
+		t.Log(r.Nearest(302, 350))
+		t.Log(r.Nearest(302, 440))
+		t.Log(r.Nearest(302, 1000))
+	}
+}
+
+func TestNewPartialRanges_Large_Range(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var largeSize int64 = 10000000000000
+	t.Log(largeSize/1024/1024/1024, "G")
+
+	var r = caches.NewPartialRanges()
+	r.Add(1, largeSize)
+	jsonData, err := r.AsJSON()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(string(jsonData))
+
+	r2, err := caches.NewPartialRangesFromJSON(jsonData)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	a.IsTrue(largeSize == r2.Ranges[0][1])
+}
+
+func TestNewPartialRanges_AsJSON(t *testing.T) {
+	var r = caches.NewPartialRanges()
+	for j := 0; j < 1000; j++ {
+		r.Add(int64(j), int64(j+100))
+	}
+	data, err := r.AsJSON()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(string(data))
+
+	r2, err := caches.NewPartialRangesFromJSON(data)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(r2.Ranges)
+}
+
+func BenchmarkNewPartialRanges(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		var r = caches.NewPartialRanges()
+		for j := 0; j < 1000; j++ {
+			r.Add(int64(j), int64(j+100))
+		}
+	}
+}

internal/caches/reader.go

@@ -1,5 +1,7 @@
 package caches
 
+import "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
+
 type ReaderFunc func(n int) (goNext bool, err error)
 
 type Reader interface {
@@ -36,6 +38,9 @@ type Reader interface {
 	// BodySize Body Size
 	BodySize() int64
 
+	// ContainsRange 是否包含某个区间内容
+	ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool)
+
 	// Close 关闭
 	Close() error
 }

internal/caches/reader_file.go

@@ -3,6 +3,7 @@ package caches
 import (
 	"encoding/binary"
 	"errors"
+	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
 	"github.com/iwind/TeaGo/types"
 	"io"
 	"os"
@@ -11,6 +12,12 @@ import (
 type FileReader struct {
 	fp *os.File
 
+	openFile      *OpenFile
+	openFileCache *OpenFileCache
+
+	meta   []byte
+	header []byte
+
 	expiresAt    int64
 	status       int
 	headerOffset int64
@@ -18,8 +25,7 @@ type FileReader struct {
 	bodySize     int64
 	bodyOffset   int64
 
-	bodyBufLen int
-	bodyBuf    []byte
+	isClosed bool
 }
 
 func NewFileReader(fp *os.File) *FileReader {
@@ -27,36 +33,51 @@ func NewFileReader(fp *os.File) *FileReader {
 }
 
 func (this *FileReader) Init() error {
+	return this.InitAutoDiscard(true)
+}
+
+func (this *FileReader) InitAutoDiscard(autoDiscard bool) error {
+	if this.openFile != nil {
+		this.meta = this.openFile.meta
+		this.header = this.openFile.header
+	}
+
 	isOk := false
 
-	defer func() {
-		if !isOk {
-			_ = this.discard()
-		}
-	}()
-
-	var buf = make([]byte, SizeMeta)
-	ok, err := this.readToBuff(this.fp, buf)
-	if err != nil {
-		return err
+	if autoDiscard {
+		defer func() {
+			if !isOk {
+				_ = this.discard()
+			}
+		}()
 	}
-	if !ok {
-		return ErrNotFound
+
+	var buf = this.meta
+	if len(buf) == 0 {
+		buf = make([]byte, SizeMeta)
+		ok, err := this.readToBuff(this.fp, buf)
+		if err != nil {
+			return err
+		}
+		if !ok {
+			return ErrNotFound
+		}
+		this.meta = buf
 	}
 
 	this.expiresAt = int64(binary.BigEndian.Uint32(buf[:SizeExpiresAt]))
 
-	status := types.Int(string(buf[SizeExpiresAt : SizeExpiresAt+SizeStatus]))
+	status := types.Int(string(buf[OffsetStatus : OffsetStatus+SizeStatus]))
 	if status < 100 || status > 999 {
 		return errors.New("invalid status")
 	}
 	this.status = status
 
 	// URL
-	urlLength := binary.BigEndian.Uint32(buf[SizeExpiresAt+SizeStatus : SizeExpiresAt+SizeStatus+SizeURLLength])
+	urlLength := binary.BigEndian.Uint32(buf[OffsetURLLength : OffsetURLLength+SizeURLLength])
 
 	// header
-	headerSize := int(binary.BigEndian.Uint32(buf[SizeExpiresAt+SizeStatus+SizeURLLength : SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength]))
+	headerSize := int(binary.BigEndian.Uint32(buf[OffsetHeaderLength : OffsetHeaderLength+SizeHeaderLength]))
 	if headerSize == 0 {
 		return nil
 	}
@@ -64,13 +85,28 @@ func (this *FileReader) Init() error {
 	this.headerOffset = int64(SizeMeta) + int64(urlLength)
 
 	// body
-	bodySize := int(binary.BigEndian.Uint64(buf[SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength : SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength+SizeBodyLength]))
+	this.bodyOffset = this.headerOffset + int64(headerSize)
+	bodySize := int(binary.BigEndian.Uint64(buf[OffsetBodyLength : OffsetBodyLength+SizeBodyLength]))
 	if bodySize == 0 {
 		isOk = true
 		return nil
 	}
 	this.bodySize = int64(bodySize)
-	this.bodyOffset = this.headerOffset + int64(headerSize)
+
+	// read header
+	if this.openFileCache != nil && len(this.header) == 0 {
+		if headerSize > 0 && headerSize <= 512 {
+			this.header = make([]byte, headerSize)
+			_, err := this.fp.Seek(this.headerOffset, io.SeekStart)
+			if err != nil {
+				return err
+			}
+			_, err = this.readToBuff(this.fp, this.header)
+			if err != nil {
+				return err
+			}
+		}
+	}
 
 	isOk = true
 
@@ -106,6 +142,22 @@ func (this *FileReader) BodySize() int64 {
 }
 
 func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
+	// 使用缓存
+	if len(this.header) > 0 && len(buf) >= len(this.header) {
+		copy(buf, this.header)
+		_, err := callback(len(this.header))
+		if err != nil {
+			return err
+		}
+
+		// 移动到Body位置
+		_, err = this.fp.Seek(this.bodyOffset, io.SeekStart)
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+
 	isOk := false
 
 	defer func() {
@@ -135,10 +187,6 @@ func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
 				}
 				headerSize -= n
 			} else {
-				if n > headerSize {
-					this.bodyBuf = buf[headerSize:]
-					this.bodyBufLen = n - headerSize
-				}
 				_, e := callback(headerSize)
 				if e != nil {
 					isOk = true
@@ -157,6 +205,12 @@ func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
 
 	isOk = true
 
+	// 移动到Body位置
+	_, err = this.fp.Seek(this.bodyOffset, io.SeekStart)
+	if err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -169,27 +223,7 @@ func (this *FileReader) ReadBody(buf []byte, callback ReaderFunc) error {
 		}
 	}()
 
-	offset := this.bodyOffset
-
-	// 直接返回从Header中剩余的
-	if this.bodyBufLen > 0 && len(buf) >= this.bodyBufLen {
-		offset += int64(this.bodyBufLen)
-
-		copy(buf, this.bodyBuf)
-		isOk = true
-
-		goNext, err := callback(this.bodyBufLen)
-		if err != nil {
-			return err
-		}
-		if !goNext {
-			return nil
-		}
-
-		if this.bodySize <= int64(this.bodyBufLen) {
-			return nil
-		}
-	}
+	var offset = this.bodyOffset
 
 	// 开始读Body部分
 	_, err := this.fp.Seek(offset, io.SeekStart)
@@ -223,32 +257,9 @@ func (this *FileReader) ReadBody(buf []byte, callback ReaderFunc) error {
 }
 
 func (this *FileReader) Read(buf []byte) (n int, err error) {
-	var isOk = false
-
-	defer func() {
-		if !isOk {
-			_ = this.discard()
-		}
-	}()
-
-	// 直接返回从Header中剩余的
-	if this.bodyBufLen > 0 && len(buf) >= this.bodyBufLen {
-		copy(buf, this.bodyBuf)
-		isOk = true
-		n = this.bodyBufLen
-
-		if this.bodySize <= int64(this.bodyBufLen) {
-			err = io.EOF
-			return
-		}
-
-		this.bodyBufLen = 0
-		return
-	}
-
 	n, err = this.fp.Read(buf)
-	if err == nil || err == io.EOF {
-		isOk = true
+	if err != nil && err != io.EOF {
+		_ = this.discard()
 	}
 	return
 }
@@ -322,7 +333,32 @@ func (this *FileReader) ReadBodyRange(buf []byte, start int64, end int64, callba
 	return nil
 }
 
+// ContainsRange 是否包含某些区间内容
+func (this *FileReader) ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool) {
+	return r, true
+}
+
+// FP 原始的文件句柄
+func (this *FileReader) FP() *os.File {
+	return this.fp
+}
+
 func (this *FileReader) Close() error {
+	if this.openFileCache != nil {
+		if this.isClosed {
+			return nil
+		}
+		this.isClosed = true
+
+		if this.openFile != nil {
+			this.openFileCache.Put(this.fp.Name(), this.openFile)
+		} else {
+			var cacheMeta = make([]byte, len(this.meta))
+			copy(cacheMeta, this.meta)
+			this.openFileCache.Put(this.fp.Name(), NewOpenFile(this.fp, cacheMeta, this.header, this.LastModified()))
+		}
+		return nil
+	}
 	return this.fp.Close()
 }
 
@@ -337,5 +373,13 @@ func (this *FileReader) readToBuff(fp *os.File, buf []byte) (ok bool, err error)
 
 func (this *FileReader) discard() error {
 	_ = this.fp.Close()
+	this.isClosed = true
+
+	// close open file cache
+	if this.openFileCache != nil {
+		this.openFileCache.Close(this.fp.Name())
+	}
+
+	// remove file
 	return os.Remove(this.fp.Name())
 }

internal/caches/reader_file_test.go

@@ -54,6 +54,30 @@ func TestFileReader(t *testing.T) {
 	}
 }
 
+func TestFileReader_ReadHeader(t *testing.T) {
+	var path = "/Users/WorkSpace/EdgeProject/EdgeCache/p43/12/6b/126bbed90fc80f2bdfb19558948b0d49.cache"
+	fp, err := os.Open(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = fp.Close()
+	}()
+	var reader = NewFileReader(fp)
+	err = reader.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	var buf = make([]byte, 16*1024)
+	err = reader.ReadHeader(buf, func(n int) (goNext bool, err error) {
+		t.Log("header:", string(buf[:n]))
+		return
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
 func TestFileReader_Range(t *testing.T) {
 	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,

internal/caches/reader_memory.go

@@ -2,6 +2,7 @@ package caches
 
 import (
 	"errors"
+	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
 	"io"
 )
 
@@ -24,7 +25,7 @@ func (this *MemoryReader) TypeName() string {
 }
 
 func (this *MemoryReader) ExpiresAt() int64 {
-	return this.item.ExpiredAt
+	return this.item.ExpiresAt
 }
 
 func (this *MemoryReader) Status() int {
@@ -197,6 +198,11 @@ func (this *MemoryReader) ReadBodyRange(buf []byte, start int64, end int64, call
 	return nil
 }
 
+// ContainsRange 是否包含某些区间内容
+func (this *MemoryReader) ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool) {
+	return r, true
+}
+
 func (this *MemoryReader) Close() error {
 	return nil
 }

internal/caches/reader_memory_test.go

@@ -4,7 +4,7 @@ import "testing"
 
 func TestMemoryReader_Header(t *testing.T) {
 	item := &MemoryItem{
-		ExpiredAt:   0,
+		ExpiresAt:   0,
 		HeaderValue: []byte("0123456789"),
 		BodyValue:   nil,
 		Status:      2000,
@@ -22,7 +22,7 @@ func TestMemoryReader_Header(t *testing.T) {
 
 func TestMemoryReader_Body(t *testing.T) {
 	item := &MemoryItem{
-		ExpiredAt:   0,
+		ExpiresAt:   0,
 		HeaderValue: nil,
 		BodyValue:   []byte("0123456789"),
 		Status:      2000,
@@ -40,7 +40,7 @@ func TestMemoryReader_Body(t *testing.T) {
 
 func TestMemoryReader_Body_Range(t *testing.T) {
 	item := &MemoryItem{
-		ExpiredAt:   0,
+		ExpiresAt:   0,
 		HeaderValue: nil,
 		BodyValue:   []byte("0123456789"),
 		Status:      2000,

internal/caches/reader_partial_file.go

@@ -0,0 +1,144 @@
+package caches
+
+import (
+	"encoding/binary"
+	"errors"
+	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"os"
+)
+
+type PartialFileReader struct {
+	*FileReader
+
+	ranges    *PartialRanges
+	rangePath string
+}
+
+func NewPartialFileReader(fp *os.File) *PartialFileReader {
+	return &PartialFileReader{
+		FileReader: NewFileReader(fp),
+		rangePath:  partialRangesFilePath(fp.Name()),
+	}
+}
+
+func (this *PartialFileReader) Init() error {
+	return this.InitAutoDiscard(true)
+}
+
+func (this *PartialFileReader) InitAutoDiscard(autoDiscard bool) error {
+	if this.openFile != nil {
+		this.meta = this.openFile.meta
+		this.header = this.openFile.header
+	}
+
+	isOk := false
+
+	if autoDiscard {
+		defer func() {
+			if !isOk {
+				_ = this.discard()
+			}
+		}()
+	}
+
+	// 读取Range
+	ranges, err := NewPartialRangesFromFile(this.rangePath)
+	if err != nil {
+		return errors.New("read ranges failed: " + err.Error())
+	}
+	this.ranges = ranges
+
+	var buf = this.meta
+	if len(buf) == 0 {
+		buf = make([]byte, SizeMeta)
+		ok, err := this.readToBuff(this.fp, buf)
+		if err != nil {
+			return err
+		}
+		if !ok {
+			return ErrNotFound
+		}
+		this.meta = buf
+	}
+
+	this.expiresAt = int64(binary.BigEndian.Uint32(buf[:SizeExpiresAt]))
+
+	status := types.Int(string(buf[SizeExpiresAt : SizeExpiresAt+SizeStatus]))
+	if status < 100 || status > 999 {
+		return errors.New("invalid status")
+	}
+	this.status = status
+
+	// URL
+	urlLength := binary.BigEndian.Uint32(buf[SizeExpiresAt+SizeStatus : SizeExpiresAt+SizeStatus+SizeURLLength])
+
+	// header
+	headerSize := int(binary.BigEndian.Uint32(buf[SizeExpiresAt+SizeStatus+SizeURLLength : SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength]))
+	if headerSize == 0 {
+		return nil
+	}
+	this.headerSize = headerSize
+	this.headerOffset = int64(SizeMeta) + int64(urlLength)
+
+	// body
+	this.bodyOffset = this.headerOffset + int64(headerSize)
+	bodySize := int(binary.BigEndian.Uint64(buf[SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength : SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength+SizeBodyLength]))
+	if bodySize == 0 {
+		isOk = true
+		return nil
+	}
+	this.bodySize = int64(bodySize)
+
+	// read header
+	if this.openFileCache != nil && len(this.header) == 0 {
+		if headerSize > 0 && headerSize <= 512 {
+			this.header = make([]byte, headerSize)
+			_, err := this.fp.Seek(this.headerOffset, io.SeekStart)
+			if err != nil {
+				return err
+			}
+			_, err = this.readToBuff(this.fp, this.header)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	isOk = true
+
+	return nil
+}
+
+// ContainsRange 是否包含某些区间内容
+// 这里的 r 是已经经过格式化的
+func (this *PartialFileReader) ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool) {
+	r2, ok = this.ranges.Nearest(r.Start(), r.End())
+	if ok && this.bodySize > 0 {
+		// 考虑可配置
+		var span int64 = 512 * 1024
+		if this.bodySize > 1<<30 {
+			span = 1 << 20
+		}
+
+		// 这里限制返回的最小缓存，防止因为返回的内容过小而导致请求过多
+		if r2.Length() < r.Length() && r2.Length() < span {
+			ok = false
+		}
+	}
+	return
+}
+
+// MaxLength 获取区间最大长度
+func (this *PartialFileReader) MaxLength() int64 {
+	if this.bodySize > 0 {
+		return this.bodySize
+	}
+	return this.ranges.Max() + 1
+}
+
+func (this *PartialFileReader) discard() error {
+	_ = os.Remove(this.rangePath)
+	return this.FileReader.discard()
+}

internal/caches/storage_file_test.go

@@ -8,7 +8,7 @@ import (
 	"github.com/iwind/TeaGo/Tea"
 	_ "github.com/iwind/TeaGo/bootstrap"
 	"github.com/iwind/TeaGo/logs"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"runtime"
 	"strconv"
@@ -62,7 +62,7 @@ func TestFileStorage_OpenWriter(t *testing.T) {
 
 	header := []byte("Header")
 	body := []byte("This is Body")
-	writer, err := storage.OpenWriter("my-key", time.Now().Unix()+86400, 200)
+	writer, err := storage.OpenWriter("my-key", time.Now().Unix()+86400, 200, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -87,6 +87,41 @@ func TestFileStorage_OpenWriter(t *testing.T) {
 	t.Log("ok")
 }
 
+func TestFileStorage_OpenWriter_Partial(t *testing.T) {
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
+		Id:   2,
+		IsOn: true,
+		Options: map[string]interface{}{
+			"dir": Tea.Root + "/caches",
+		},
+	})
+	err := storage.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	writer, err := storage.OpenWriter("my-key", time.Now().Unix()+86400, 200, -1, -1, true)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = writer.WriteHeader([]byte("Content-Type:text/html; charset=utf-8"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.WriteAt(0, []byte("Hello, World"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(writer)
+}
+
 func TestFileStorage_OpenWriter_HTTP(t *testing.T) {
 	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
@@ -104,7 +139,7 @@ func TestFileStorage_OpenWriter_HTTP(t *testing.T) {
 		t.Log(time.Since(now).Seconds()*1000, "ms")
 	}()
 
-	writer, err := storage.OpenWriter("my-http-response", time.Now().Unix()+86400, 200)
+	writer, err := storage.OpenWriter("my-http-response", time.Now().Unix()+86400, 200, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -117,7 +152,7 @@ func TestFileStorage_OpenWriter_HTTP(t *testing.T) {
 			"Last-Modified": []string{"Wed, 06 Jan 2021 10:03:29 GMT"},
 			"Server":        []string{"CDN-Server"},
 		},
-		Body: ioutil.NopCloser(bytes.NewBuffer([]byte("THIS IS HTTP BODY"))),
+		Body: io.NopCloser(bytes.NewBuffer([]byte("THIS IS HTTP BODY"))),
 	}
 
 	for k, v := range resp.Header {
@@ -177,10 +212,11 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 
-			writer, err := storage.OpenWriter("abc"+strconv.Itoa(i), time.Now().Unix()+3600, 200)
+			writer, err := storage.OpenWriter("abc"+strconv.Itoa(i), time.Now().Unix()+3600, 200, -1, -1, false)
 			if err != nil {
 				if err != ErrFileIsWriting {
-					t.Fatal(err)
+					t.Error(err)
+					return
 				}
 				return
 			}
@@ -188,7 +224,8 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 
 			_, err = writer.Write([]byte("Hello,World"))
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 
 			// 故意造成慢速写入
@@ -196,7 +233,8 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 
 			err = writer.Close()
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 		}(i)
 	}
@@ -229,10 +267,11 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 
-			writer, err := storage.OpenWriter("abc"+strconv.Itoa(0), time.Now().Unix()+3600, 200)
+			writer, err := storage.OpenWriter("abc"+strconv.Itoa(0), time.Now().Unix()+3600, 200, -1, -1, false)
 			if err != nil {
 				if err != ErrFileIsWriting {
-					t.Fatal(err)
+					t.Error(err)
+					return
 				}
 				return
 			}
@@ -241,7 +280,8 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 			t.Log("writing")
 			_, err = writer.Write([]byte("Hello,World"))
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 
 			// 故意造成慢速写入
@@ -249,7 +289,8 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 
 			err = writer.Close()
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 		}(i)
 	}
@@ -270,7 +311,7 @@ func TestFileStorage_Read(t *testing.T) {
 		t.Fatal(err)
 	}
 	now := time.Now()
-	reader, err := storage.OpenReader("my-key", false)
+	reader, err := storage.OpenReader("my-key", false, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -306,7 +347,7 @@ func TestFileStorage_Read_HTTP_Response(t *testing.T) {
 		t.Fatal(err)
 	}
 	now := time.Now()
-	reader, err := storage.OpenReader("my-http-response", false)
+	reader, err := storage.OpenReader("my-http-response", false, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -360,7 +401,7 @@ func TestFileStorage_Read_NotFound(t *testing.T) {
 	}
 	now := time.Now()
 	buf := make([]byte, 6)
-	reader, err := storage.OpenReader("my-key-10000", false)
+	reader, err := storage.OpenReader("my-key-10000", false, false)
 	if err != nil {
 		if err == ErrNotFound {
 			t.Log("cache not fund")
@@ -470,7 +511,7 @@ func TestFileStorage_Stop(t *testing.T) {
 }
 
 func TestFileStorage_DecodeFile(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
@@ -482,11 +523,12 @@ func TestFileStorage_DecodeFile(t *testing.T) {
 		t.Fatal(err)
 	}
 	_, path := storage.keyPath("my-key")
-	item, err := storage.decodeFile(path)
-	if err != nil {
-		t.Fatal(err)
-	}
-	logs.PrintAsJSON(item, t)
+	t.Log(path)
+}
+
+func TestFileStorage_RemoveCacheFile(t *testing.T) {
+	var storage = NewFileStorage(nil)
+	t.Log(storage.removeCacheFile("/Users/WorkSpace/EdgeProject/EdgeCache/p43/15/7e/157eba0dfc6dfb6fbbf20b1f9e584674.cache"))
 }
 
 func BenchmarkFileStorage_Read(b *testing.B) {
@@ -506,7 +548,7 @@ func BenchmarkFileStorage_Read(b *testing.B) {
 		b.Fatal(err)
 	}
 	for i := 0; i < b.N; i++ {
-		reader, err := storage.OpenReader("my-key", false)
+		reader, err := storage.OpenReader("my-key", false, false)
 		if err != nil {
 			b.Fatal(err)
 		}
@@ -522,8 +564,8 @@ func BenchmarkFileStorage_KeyPath(b *testing.B) {
 	runtime.GOMAXPROCS(1)
 
 	var storage = &FileStorage{
-		cacheConfig: &serverconfigs.HTTPFileCacheStorage{},
-		policy:      &serverconfigs.HTTPCachePolicy{Id: 1},
+		options: &serverconfigs.HTTPFileCacheStorage{},
+		policy:  &serverconfigs.HTTPCachePolicy{Id: 1},
 	}
 
 	for i := 0; i < b.N; i++ {

internal/caches/storage_interface.go

@@ -10,10 +10,14 @@ type StorageInterface interface {
 	Init() error
 
 	// OpenReader 读取缓存
-	OpenReader(key string, useStale bool) (reader Reader, err error)
+	OpenReader(key string, useStale bool, isPartial bool) (reader Reader, err error)
 
 	// OpenWriter 打开缓存写入器等待写入
-	OpenWriter(key string, expiredAt int64, status int) (Writer, error)
+	// size 和 maxSize 可能为-1
+	OpenWriter(key string, expiresAt int64, status int, size int64, maxSize int64, isPartial bool) (Writer, error)
+
+	// OpenFlushWriter 打开从其他媒介直接刷入的写入器
+	OpenFlushWriter(key string, expiresAt int64, status int) (Writer, error)
 
 	// Delete 删除某个键值对应的缓存
 	Delete(key string) error
@@ -31,6 +35,7 @@ type StorageInterface interface {
 	CleanAll() error
 
 	// Purge 批量删除缓存
+	// urlType 值为file|dir
 	Purge(keys []string, urlType string) error
 
 	// Stop 停止缓存策略
@@ -39,6 +44,18 @@ type StorageInterface interface {
 	// Policy 获取当前存储的Policy
 	Policy() *serverconfigs.HTTPCachePolicy
 
+	// UpdatePolicy 修改策略
+	UpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy)
+
+	// CanUpdatePolicy 检查策略是否可以更新
+	CanUpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) bool
+
 	// AddToList 将缓存添加到列表
 	AddToList(item *Item)
+
+	// IgnoreKey 忽略某个Key，即不缓存某个Key
+	IgnoreKey(key string)
+
+	// CanSendfile 是否支持Sendfile
+	CanSendfile() bool
 }

internal/caches/storage_memory.go

@@ -7,10 +7,13 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/trackers"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	setutils "github.com/TeaOSLab/EdgeNode/internal/utils/sets"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/sizes"
 	"github.com/TeaOSLab/EdgeNode/internal/zero"
 	"github.com/cespare/xxhash"
 	"github.com/iwind/TeaGo/rands"
 	"github.com/iwind/TeaGo/types"
+	"github.com/shirou/gopsutil/v3/load"
 	"math"
 	"runtime"
 	"strconv"
@@ -20,7 +23,7 @@ import (
 )
 
 type MemoryItem struct {
-	ExpiredAt   int64
+	ExpiresAt   int64
 	HeaderValue []byte
 	BodyValue   []byte
 	Status      int
@@ -29,7 +32,7 @@ type MemoryItem struct {
 }
 
 func (this *MemoryItem) IsExpired() bool {
-	return this.ExpiredAt < utils.UnixTime()
+	return this.ExpiresAt < utils.UnixTime()
 }
 
 type MemoryStorage struct {
@@ -40,31 +43,39 @@ type MemoryStorage struct {
 	locker *sync.RWMutex
 
 	valuesMap map[uint64]*MemoryItem // hash => item
-	dirtyChan chan string            // hash chan
+
+	dirtyChan      chan string // hash chan
+	dirtyQueueSize int
 
 	purgeTicker *utils.Ticker
 
 	totalSize     int64
 	writingKeyMap map[string]zero.Zero // key => bool
+
+	ignoreKeys *setutils.FixedSet
 }
 
 func NewMemoryStorage(policy *serverconfigs.HTTPCachePolicy, parentStorage StorageInterface) *MemoryStorage {
 	var dirtyChan chan string
+	var queueSize = policy.MemoryAutoFlushQueueSize
+
 	if parentStorage != nil {
-		var queueSize = policy.MemoryAutoFlushQueueSize
 		if queueSize <= 0 {
-			queueSize = 2048
+			queueSize = 2048 + int(policy.CapacityBytes()/sizes.G)*2048
 		}
+
 		dirtyChan = make(chan string, queueSize)
 	}
 	return &MemoryStorage{
-		parentStorage: parentStorage,
-		policy:        policy,
-		list:          NewMemoryList(),
-		locker:        &sync.RWMutex{},
-		valuesMap:     map[uint64]*MemoryItem{},
-		dirtyChan:     dirtyChan,
-		writingKeyMap: map[string]zero.Zero{},
+		parentStorage:  parentStorage,
+		policy:         policy,
+		list:           NewMemoryList(),
+		locker:         &sync.RWMutex{},
+		valuesMap:      map[uint64]*MemoryItem{},
+		dirtyChan:      dirtyChan,
+		dirtyQueueSize: queueSize,
+		writingKeyMap:  map[string]zero.Zero{},
+		ignoreKeys:     setutils.NewFixedSet(32768),
 	}
 }
 
@@ -79,33 +90,26 @@ func (this *MemoryStorage) Init() error {
 		atomic.AddInt64(&this.totalSize, -item.TotalSize())
 	})
 
-	var autoPurgeInterval = this.policy.MemoryAutoPurgeInterval
-	if autoPurgeInterval <= 0 {
-		autoPurgeInterval = 5
-	}
-
-	// 启动定时清理任务
-	this.purgeTicker = utils.NewTicker(time.Duration(autoPurgeInterval) * time.Second)
-	goman.New(func() {
-		for this.purgeTicker.Next() {
-			var tr = trackers.Begin("MEMORY_CACHE_STORAGE_PURGE_LOOP")
-			this.purgeLoop()
-			tr.End()
-		}
-	})
+	this.initPurgeTicker()
 
 	// 启动定时Flush memory to disk任务
-	goman.New(func() {
-		for hash := range this.dirtyChan {
-			this.flushItem(hash)
+	if this.parentStorage != nil {
+		// TODO 应该根据磁盘性能决定线程数
+		// TODO 线程数应该可以在缓存策略和节点中设定
+		var threads = runtime.NumCPU()
+
+		for i := 0; i < threads; i++ {
+			goman.New(func() {
+				this.startFlush()
+			})
 		}
-	})
+	}
 
 	return nil
 }
 
 // OpenReader 读取缓存
-func (this *MemoryStorage) OpenReader(key string, useStale bool) (Reader, error) {
+func (this *MemoryStorage) OpenReader(key string, useStale bool, isPartial bool) (Reader, error) {
 	hash := this.hash(key)
 
 	this.locker.RLock()
@@ -115,7 +119,7 @@ func (this *MemoryStorage) OpenReader(key string, useStale bool) (Reader, error)
 		return nil, ErrNotFound
 	}
 
-	if useStale || (item.ExpiredAt > utils.UnixTime()) {
+	if useStale || (item.ExpiresAt > utils.UnixTime()) {
 		reader := NewMemoryReader(item)
 		err := reader.Init()
 		if err != nil {
@@ -145,11 +149,32 @@ func (this *MemoryStorage) OpenReader(key string, useStale bool) (Reader, error)
 }
 
 // OpenWriter 打开缓存写入器等待写入
-func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int) (Writer, error) {
-	return this.openWriter(key, expiredAt, status, true)
+func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int, size int64, maxSize int64, isPartial bool) (Writer, error) {
+	if this.ignoreKeys.Has(key) {
+		return nil, ErrEntityTooLarge
+	}
+
+	// TODO 内存缓存暂时不支持分块内容存储
+	if isPartial {
+		return nil, ErrFileIsWriting
+	}
+	return this.openWriter(key, expiredAt, status, size, maxSize, true)
 }
 
-func (this *MemoryStorage) openWriter(key string, expiredAt int64, status int, isDirty bool) (Writer, error) {
+// OpenFlushWriter 打开从其他媒介直接刷入的写入器
+func (this *MemoryStorage) OpenFlushWriter(key string, expiresAt int64, status int) (Writer, error) {
+	return this.openWriter(key, expiresAt, status, -1, -1, true)
+}
+
+func (this *MemoryStorage) openWriter(key string, expiresAt int64, status int, size int64, maxSize int64, isDirty bool) (Writer, error) {
+	// 待写入队列是否已满
+	if isDirty &&
+		this.parentStorage != nil &&
+		this.dirtyQueueSize > 0 &&
+		len(this.dirtyChan) == this.dirtyQueueSize { // 缓存时间过长
+		return nil, ErrWritingQueueFull
+	}
+
 	this.locker.Lock()
 	defer this.locker.Unlock()
 
@@ -182,7 +207,10 @@ func (this *MemoryStorage) openWriter(key string, expiredAt int64, status int, i
 		return nil, NewCapacityError("write memory cache failed: too many keys in cache storage")
 	}
 	capacityBytes := this.memoryCapacityBytes()
-	if capacityBytes > 0 && capacityBytes <= this.totalSize {
+	if size < 0 {
+		size = 0
+	}
+	if capacityBytes > 0 && capacityBytes <= this.totalSize+size {
 		return nil, NewCapacityError("write memory cache failed: over memory size: " + strconv.FormatInt(capacityBytes, 10) + ", current size: " + strconv.FormatInt(this.totalSize, 10) + " bytes")
 	}
 
@@ -193,7 +221,7 @@ func (this *MemoryStorage) openWriter(key string, expiredAt int64, status int, i
 	}
 
 	isWriting = true
-	return NewMemoryWriter(this, key, expiredAt, status, isDirty, func() {
+	return NewMemoryWriter(this, key, expiresAt, status, isDirty, maxSize, func() {
 		this.locker.Lock()
 		delete(this.writingKeyMap, key)
 		this.locker.Unlock()
@@ -240,8 +268,10 @@ func (this *MemoryStorage) Purge(keys []string, urlType string) error {
 				return err
 			}
 		}
+		return nil
 	}
 
+	// URL
 	for _, key := range keys {
 		err := this.Delete(key)
 		if err != nil {
@@ -262,7 +292,7 @@ func (this *MemoryStorage) Stop() {
 		this.purgeTicker.Stop()
 	}
 
-	if this.parentStorage != nil && this.dirtyChan != nil {
+	if this.dirtyChan != nil {
 		close(this.dirtyChan)
 	}
 
@@ -270,6 +300,8 @@ func (this *MemoryStorage) Stop() {
 
 	this.locker.Unlock()
 
+	this.ignoreKeys.Reset()
+
 	// 回收内存
 	runtime.GC()
 
@@ -281,6 +313,26 @@ func (this *MemoryStorage) Policy() *serverconfigs.HTTPCachePolicy {
 	return this.policy
 }
 
+// UpdatePolicy 修改策略
+func (this *MemoryStorage) UpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) {
+	var oldPolicy = this.policy
+	this.policy = newPolicy
+
+	if oldPolicy.MemoryAutoPurgeInterval != newPolicy.MemoryAutoPurgeInterval {
+		this.initPurgeTicker()
+	}
+
+	// 如果是空的，则清空
+	if newPolicy.CapacityBytes() == 0 {
+		_ = this.CleanAll()
+	}
+}
+
+// CanUpdatePolicy 检查策略是否可以更新
+func (this *MemoryStorage) CanUpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) bool {
+	return true
+}
+
 // AddToList 将缓存添加到列表
 func (this *MemoryStorage) AddToList(item *Item) {
 	item.MetaSize = int64(len(item.Key)) + 128 /** 128是我们评估的数据结构的长度 **/
@@ -298,6 +350,16 @@ func (this *MemoryStorage) TotalMemorySize() int64 {
 	return atomic.LoadInt64(&this.totalSize)
 }
 
+// IgnoreKey 忽略某个Key，即不缓存某个Key
+func (this *MemoryStorage) IgnoreKey(key string) {
+	this.ignoreKeys.Push(key)
+}
+
+// CanSendfile 是否支持Sendfile
+func (this *MemoryStorage) CanSendfile() bool {
+	return false
+}
+
 // 计算Key Hash
 func (this *MemoryStorage) hash(key string) uint64 {
 	return xxhash.Sum64String(key)
@@ -366,7 +428,42 @@ func (this *MemoryStorage) purgeLoop() {
 	}
 }
 
-// Flush任务
+// 开始Flush任务
+func (this *MemoryStorage) startFlush() {
+	var statCount = 0
+	var writeDelayMS float64 = 0
+
+	for hash := range this.dirtyChan {
+		statCount++
+
+		if statCount == 100 {
+			statCount = 0
+
+			if protectingLoadWhenDump {
+				loadStat, err := load.Avg()
+				if err == nil && loadStat != nil {
+					if loadStat.Load1 > 10 {
+						writeDelayMS = 100
+					} else if loadStat.Load1 > 3 {
+						writeDelayMS = 50
+					} else if loadStat.Load1 > 2 {
+						writeDelayMS = 10
+					} else {
+						writeDelayMS = 0
+					}
+				}
+			}
+		}
+
+		this.flushItem(hash)
+
+		if writeDelayMS > 0 {
+			time.Sleep(time.Duration(writeDelayMS) * time.Millisecond)
+		}
+	}
+}
+
+// 单次Flush任务
 func (this *MemoryStorage) flushItem(key string) {
 	if this.parentStorage == nil {
 		return
@@ -384,7 +481,7 @@ func (this *MemoryStorage) flushItem(key string) {
 		return
 	}
 
-	writer, err := this.parentStorage.OpenWriter(key, item.ExpiredAt, item.Status)
+	writer, err := this.parentStorage.OpenFlushWriter(key, item.ExpiresAt, item.Status)
 	if err != nil {
 		if !CanIgnoreErr(err) {
 			remotelogs.Error("CACHE", "flush items failed: open writer failed: "+err.Error())
@@ -410,16 +507,20 @@ func (this *MemoryStorage) flushItem(key string) {
 	if err != nil {
 		_ = writer.Discard()
 		remotelogs.Error("CACHE", "flush items failed: close writer failed: "+err.Error())
+		return
 	}
 
 	this.parentStorage.AddToList(&Item{
 		Type:       writer.ItemType(),
 		Key:        key,
-		ExpiredAt:  item.ExpiredAt,
+		ExpiredAt:  item.ExpiresAt,
 		HeaderSize: writer.HeaderSize(),
 		BodySize:   writer.BodySize(),
 	})
 
+	// 从内存中移除
+	_ = this.Delete(key)
+
 	return
 }
 
@@ -446,3 +547,25 @@ func (this *MemoryStorage) deleteWithoutLocker(key string) error {
 	_ = this.list.Remove(fmt.Sprintf("%d", hash))
 	return nil
 }
+
+func (this *MemoryStorage) initPurgeTicker() {
+	var autoPurgeInterval = this.policy.MemoryAutoPurgeInterval
+	if autoPurgeInterval <= 0 {
+		autoPurgeInterval = 5
+	}
+
+	// 启动定时清理任务
+
+	if this.purgeTicker != nil {
+		this.purgeTicker.Stop()
+	}
+
+	this.purgeTicker = utils.NewTicker(time.Duration(autoPurgeInterval) * time.Second)
+	goman.New(func() {
+		for this.purgeTicker.Next() {
+			var tr = trackers.Begin("MEMORY_CACHE_STORAGE_PURGE_LOOP")
+			this.purgeLoop()
+			tr.End()
+		}
+	})
+}

internal/caches/storage_memory_test.go

@@ -8,6 +8,7 @@ import (
 	"runtime"
 	"runtime/debug"
 	"strconv"
+	"sync"
 	"testing"
 	"time"
 )
@@ -15,7 +16,7 @@ import (
 func TestMemoryStorage_OpenWriter(t *testing.T) {
 	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 
-	writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200)
+	writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -25,7 +26,7 @@ func TestMemoryStorage_OpenWriter(t *testing.T) {
 	t.Log(storage.valuesMap)
 
 	{
-		reader, err := storage.OpenReader("abc", false)
+		reader, err := storage.OpenReader("abc", false, false)
 		if err != nil {
 			if err == ErrNotFound {
 				t.Log("not found: abc")
@@ -52,7 +53,7 @@ func TestMemoryStorage_OpenWriter(t *testing.T) {
 	}
 
 	{
-		_, err := storage.OpenReader("abc 2", false)
+		_, err := storage.OpenReader("abc 2", false, false)
 		if err != nil {
 			if err == ErrNotFound {
 				t.Log("not found: abc2")
@@ -62,13 +63,13 @@ func TestMemoryStorage_OpenWriter(t *testing.T) {
 		}
 	}
 
-	writer, err = storage.OpenWriter("abc", time.Now().Unix()+60, 200)
+	writer, err = storage.OpenWriter("abc", time.Now().Unix()+60, 200, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
 	_, _ = writer.Write([]byte("Hello123"))
 	{
-		reader, err := storage.OpenReader("abc", false)
+		reader, err := storage.OpenReader("abc", false, false)
 		if err != nil {
 			if err == ErrNotFound {
 				t.Log("not found: abc")
@@ -97,13 +98,13 @@ func TestMemoryStorage_OpenReaderLock(t *testing.T) {
 			IsDone: true,
 		},
 	}
-	_, _ = storage.OpenReader("test", false)
+	_, _ = storage.OpenReader("test", false, false)
 }
 
 func TestMemoryStorage_Delete(t *testing.T) {
 	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	{
-		writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200)
+		writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -111,7 +112,7 @@ func TestMemoryStorage_Delete(t *testing.T) {
 		t.Log(len(storage.valuesMap))
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", time.Now().Unix()+60, 200)
+		writer, err := storage.OpenWriter("abc1", time.Now().Unix()+60, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -126,7 +127,7 @@ func TestMemoryStorage_Stat(t *testing.T) {
 	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	expiredAt := time.Now().Unix() + 60
 	{
-		writer, err := storage.OpenWriter("abc", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc", expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -139,7 +140,7 @@ func TestMemoryStorage_Stat(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -163,7 +164,7 @@ func TestMemoryStorage_CleanAll(t *testing.T) {
 	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	expiredAt := time.Now().Unix() + 60
 	{
-		writer, err := storage.OpenWriter("abc", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc", expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -175,7 +176,7 @@ func TestMemoryStorage_CleanAll(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -198,7 +199,7 @@ func TestMemoryStorage_Purge(t *testing.T) {
 	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	expiredAt := time.Now().Unix() + 60
 	{
-		writer, err := storage.OpenWriter("abc", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc", expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -210,7 +211,7 @@ func TestMemoryStorage_Purge(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -241,7 +242,7 @@ func TestMemoryStorage_Expire(t *testing.T) {
 	for i := 0; i < 1000; i++ {
 		expiredAt := time.Now().Unix() + int64(rands.Int(0, 60))
 		key := "abc" + strconv.Itoa(i)
-		writer, err := storage.OpenWriter(key, expiredAt, 200)
+		writer, err := storage.OpenWriter(key, expiredAt, 200, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -304,3 +305,30 @@ func TestMemoryStorage_Stop(t *testing.T) {
 
 	t.Log(len(m))
 }
+
+func BenchmarkValuesMap(b *testing.B) {
+	var m = map[uint64]*MemoryItem{}
+	var count = 1_000_000
+	for i := 0; i < count; i++ {
+		m[uint64(i)] = &MemoryItem{
+			ExpiresAt: time.Now().Unix(),
+		}
+	}
+	b.Log(len(m))
+
+	var locker = sync.Mutex{}
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			locker.Lock()
+			_, ok := m[uint64(rands.Int(0, 1_000_000))]
+			_ = ok
+			locker.Unlock()
+
+			locker.Lock()
+			delete(m, uint64(rands.Int(2, 1000000)))
+			locker.Unlock()
+		}
+	})
+}

internal/caches/utils_partial.go

@@ -0,0 +1,18 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import "strings"
+
+// 获取 ranges 文件路径
+func partialRangesFilePath(path string) string {
+	// ranges路径
+	var dotIndex = strings.LastIndex(path, ".")
+	var rangePath = ""
+	if dotIndex < 0 {
+		rangePath = path + "@ranges.cache"
+	} else {
+		rangePath = path[:dotIndex] + "@ranges" + path[dotIndex:]
+	}
+	return rangePath
+}

internal/caches/writer.go

@@ -8,6 +8,9 @@ type Writer interface {
 	// Write 写入Body数据
 	Write(data []byte) (n int, err error)
 
+	// WriteAt 在指定位置写入数据
+	WriteAt(offset int64, data []byte) error
+
 	// HeaderSize 写入的Header数据大小
 	HeaderSize() int64
 

internal/caches/writer_compression.go

@@ -1,76 +0,0 @@
-package caches
-
-import (
-	"github.com/TeaOSLab/EdgeNode/internal/compressions"
-)
-
-type compressionWriter struct {
-	rawWriter Writer
-	writer    compressions.Writer
-	key       string
-	expiredAt int64
-}
-
-func NewCompressionWriter(gw Writer, cpWriter compressions.Writer, key string, expiredAt int64) Writer {
-	return &compressionWriter{
-		rawWriter: gw,
-		writer:    cpWriter,
-		key:       key,
-		expiredAt: expiredAt,
-	}
-}
-
-func (this *compressionWriter) WriteHeader(data []byte) (n int, err error) {
-	return this.writer.Write(data)
-}
-
-// WriteHeaderLength 写入Header长度数据
-func (this *compressionWriter) WriteHeaderLength(headerLength int) error {
-	return nil
-}
-
-// WriteBodyLength 写入Body长度数据
-func (this *compressionWriter) WriteBodyLength(bodyLength int64) error {
-	return nil
-}
-
-func (this *compressionWriter) Write(data []byte) (n int, err error) {
-	return this.writer.Write(data)
-}
-
-func (this *compressionWriter) Close() error {
-	err := this.writer.Close()
-	if err != nil {
-		return err
-	}
-	return this.rawWriter.Close()
-}
-
-func (this *compressionWriter) Discard() error {
-	err := this.writer.Close()
-	if err != nil {
-		return err
-	}
-	return this.rawWriter.Discard()
-}
-
-func (this *compressionWriter) Key() string {
-	return this.key
-}
-
-func (this *compressionWriter) ExpiredAt() int64 {
-	return this.expiredAt
-}
-
-func (this *compressionWriter) HeaderSize() int64 {
-	return this.rawWriter.HeaderSize()
-}
-
-func (this *compressionWriter) BodySize() int64 {
-	return this.rawWriter.BodySize()
-}
-
-// ItemType 内容类型
-func (this *compressionWriter) ItemType() ItemType {
-	return this.rawWriter.ItemType()
-}

internal/caches/writer_file.go

@@ -2,6 +2,7 @@ package caches
 
 import (
 	"encoding/binary"
+	"errors"
 	"github.com/iwind/TeaGo/types"
 	"io"
 	"os"
@@ -10,20 +11,24 @@ import (
 )
 
 type FileWriter struct {
+	storage    StorageInterface
 	rawWriter  *os.File
 	key        string
 	headerSize int64
 	bodySize   int64
 	expiredAt  int64
+	maxSize    int64
 	endFunc    func()
 	once       sync.Once
 }
 
-func NewFileWriter(rawWriter *os.File, key string, expiredAt int64, endFunc func()) *FileWriter {
+func NewFileWriter(storage StorageInterface, rawWriter *os.File, key string, expiredAt int64, maxSize int64, endFunc func()) *FileWriter {
 	return &FileWriter{
+		storage:   storage,
 		key:       key,
 		rawWriter: rawWriter,
 		expiredAt: expiredAt,
+		maxSize:   maxSize,
 		endFunc:   endFunc,
 	}
 }
@@ -59,12 +64,28 @@ func (this *FileWriter) WriteHeaderLength(headerLength int) error {
 func (this *FileWriter) Write(data []byte) (n int, err error) {
 	n, err = this.rawWriter.Write(data)
 	this.bodySize += int64(n)
+
+	if this.maxSize > 0 && this.bodySize > this.maxSize {
+		err = ErrEntityTooLarge
+
+		if this.storage != nil {
+			this.storage.IgnoreKey(this.key)
+		}
+	}
+
 	if err != nil {
 		_ = this.Discard()
 	}
 	return
 }
 
+// WriteAt 在指定位置写入数据
+func (this *FileWriter) WriteAt(offset int64, data []byte) error {
+	_ = data
+	_ = offset
+	return errors.New("not supported")
+}
+
 // WriteBodyLength 写入Body长度数据
 func (this *FileWriter) WriteBodyLength(bodyLength int64) error {
 	bytes8 := make([]byte, 8)
@@ -106,8 +127,8 @@ func (this *FileWriter) Close() error {
 	err = this.rawWriter.Close()
 	if err != nil {
 		_ = os.Remove(path)
-	} else {
-		err = os.Rename(path, strings.Replace(path, ".tmp", "", 1))
+	} else if strings.HasSuffix(path, FileTmpSuffix) {
+		err = os.Rename(path, strings.Replace(path, FileTmpSuffix, "", 1))
 		if err != nil {
 			_ = os.Remove(path)
 		}

internal/caches/writer_memory.go

@@ -1,6 +1,7 @@
 package caches
 
 import (
+	"errors"
 	"github.com/cespare/xxhash"
 	"sync"
 	"time"
@@ -15,6 +16,7 @@ type MemoryWriter struct {
 	bodySize   int64
 	status     int
 	isDirty    bool
+	maxSize    int64
 
 	hash    uint64
 	item    *MemoryItem
@@ -22,18 +24,19 @@ type MemoryWriter struct {
 	once    sync.Once
 }
 
-func NewMemoryWriter(memoryStorage *MemoryStorage, key string, expiredAt int64, status int, isDirty bool, endFunc func()) *MemoryWriter {
+func NewMemoryWriter(memoryStorage *MemoryStorage, key string, expiredAt int64, status int, isDirty bool, maxSize int64, endFunc func()) *MemoryWriter {
 	w := &MemoryWriter{
 		storage:   memoryStorage,
 		key:       key,
 		expiredAt: expiredAt,
 		item: &MemoryItem{
-			ExpiredAt:  expiredAt,
+			ExpiresAt:  expiredAt,
 			ModifiedAt: time.Now().Unix(),
 			Status:     status,
 		},
 		status:  status,
 		isDirty: isDirty,
+		maxSize: maxSize,
 		endFunc: endFunc,
 	}
 	w.hash = w.calculateHash(key)
@@ -52,9 +55,24 @@ func (this *MemoryWriter) WriteHeader(data []byte) (n int, err error) {
 func (this *MemoryWriter) Write(data []byte) (n int, err error) {
 	this.bodySize += int64(len(data))
 	this.item.BodyValue = append(this.item.BodyValue, data...)
+
+	// 检查尺寸
+	if this.maxSize > 0 && this.bodySize > this.maxSize {
+		err = ErrEntityTooLarge
+		this.storage.IgnoreKey(this.key)
+		return len(data), err
+	}
+
 	return len(data), nil
 }
 
+// WriteAt 在指定位置写入数据
+func (this *MemoryWriter) WriteAt(offset int64, b []byte) error {
+	_ = b
+	_ = offset
+	return errors.New("not supported")
+}
+
 // HeaderSize 数据尺寸
 func (this *MemoryWriter) HeaderSize() int64 {
 	return this.headerSize

internal/caches/writer_partial_file.go

@@ -0,0 +1,224 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"encoding/binary"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"os"
+	"sync"
+)
+
+type PartialFileWriter struct {
+	rawWriter  *os.File
+	key        string
+	headerSize int64
+	bodySize   int64
+	expiredAt  int64
+	endFunc    func()
+	once       sync.Once
+
+	isNew      bool
+	isPartial  bool
+	bodyOffset int64
+
+	ranges    *PartialRanges
+	rangePath string
+}
+
+func NewPartialFileWriter(rawWriter *os.File, key string, expiredAt int64, isNew bool, isPartial bool, bodyOffset int64, ranges *PartialRanges, endFunc func()) *PartialFileWriter {
+	return &PartialFileWriter{
+		key:        key,
+		rawWriter:  rawWriter,
+		expiredAt:  expiredAt,
+		endFunc:    endFunc,
+		isNew:      isNew,
+		isPartial:  isPartial,
+		bodyOffset: bodyOffset,
+		ranges:     ranges,
+		rangePath:  partialRangesFilePath(rawWriter.Name()),
+	}
+}
+
+// WriteHeader 写入数据
+func (this *PartialFileWriter) WriteHeader(data []byte) (n int, err error) {
+	if !this.isNew {
+		return
+	}
+	n, err = this.rawWriter.Write(data)
+	this.headerSize += int64(n)
+	if err != nil {
+		_ = this.Discard()
+	}
+	return
+}
+
+func (this *PartialFileWriter) AppendHeader(data []byte) error {
+	_, err := this.rawWriter.Write(data)
+	if err != nil {
+		_ = this.Discard()
+	} else {
+		var c = len(data)
+		this.headerSize += int64(c)
+		err = this.WriteHeaderLength(int(this.headerSize))
+		if err != nil {
+			_ = this.Discard()
+		}
+	}
+	return err
+}
+
+// WriteHeaderLength 写入Header长度数据
+func (this *PartialFileWriter) WriteHeaderLength(headerLength int) error {
+	bytes4 := make([]byte, 4)
+	binary.BigEndian.PutUint32(bytes4, uint32(headerLength))
+	_, err := this.rawWriter.Seek(SizeExpiresAt+SizeStatus+SizeURLLength, io.SeekStart)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	_, err = this.rawWriter.Write(bytes4)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	return nil
+}
+
+// Write 写入数据
+func (this *PartialFileWriter) Write(data []byte) (n int, err error) {
+	n, err = this.rawWriter.Write(data)
+	this.bodySize += int64(n)
+	if err != nil {
+		_ = this.Discard()
+	}
+	return
+}
+
+// WriteAt 在指定位置写入数据
+func (this *PartialFileWriter) WriteAt(offset int64, data []byte) error {
+	var c = int64(len(data))
+	if c == 0 {
+		return nil
+	}
+	var end = offset + c - 1
+
+	// 是否已包含在内
+	if this.ranges.Contains(offset, end) {
+		return nil
+	}
+
+	if this.bodyOffset == 0 {
+		this.bodyOffset = SizeMeta + int64(len(this.key)) + this.headerSize
+	}
+	_, err := this.rawWriter.WriteAt(data, this.bodyOffset+offset)
+	if err != nil {
+		return err
+	}
+
+	this.ranges.Add(offset, end)
+
+	return nil
+}
+
+// SetBodyLength 设置内容总长度
+func (this *PartialFileWriter) SetBodyLength(bodyLength int64) {
+	this.bodySize = bodyLength
+}
+
+// WriteBodyLength 写入Body长度数据
+func (this *PartialFileWriter) WriteBodyLength(bodyLength int64) error {
+	bytes8 := make([]byte, 8)
+	binary.BigEndian.PutUint64(bytes8, uint64(bodyLength))
+	_, err := this.rawWriter.Seek(SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength, io.SeekStart)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	_, err = this.rawWriter.Write(bytes8)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	return nil
+}
+
+// Close 关闭
+func (this *PartialFileWriter) Close() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	err := this.ranges.WriteToFile(this.rangePath)
+	if err != nil {
+		return err
+	}
+
+	// 关闭当前writer
+	if this.isNew {
+		err = this.WriteHeaderLength(types.Int(this.headerSize))
+		if err != nil {
+			_ = this.rawWriter.Close()
+			this.remove()
+			return err
+		}
+		err = this.WriteBodyLength(this.bodySize)
+		if err != nil {
+			_ = this.rawWriter.Close()
+			this.remove()
+			return err
+		}
+	}
+
+	err = this.rawWriter.Close()
+	if err != nil {
+		this.remove()
+	}
+
+	return err
+}
+
+// Discard 丢弃
+func (this *PartialFileWriter) Discard() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	_ = this.rawWriter.Close()
+
+	_ = os.Remove(this.rangePath)
+
+	err := os.Remove(this.rawWriter.Name())
+	return err
+}
+
+func (this *PartialFileWriter) HeaderSize() int64 {
+	return this.headerSize
+}
+
+func (this *PartialFileWriter) BodySize() int64 {
+	return this.bodySize
+}
+
+func (this *PartialFileWriter) ExpiredAt() int64 {
+	return this.expiredAt
+}
+
+func (this *PartialFileWriter) Key() string {
+	return this.key
+}
+
+// ItemType 获取内容类型
+func (this *PartialFileWriter) ItemType() ItemType {
+	return ItemTypeFile
+}
+
+func (this *PartialFileWriter) IsNew() bool {
+	return this.isNew && len(this.ranges.Ranges) == 0
+}
+
+func (this *PartialFileWriter) remove() {
+	_ = os.Remove(this.rawWriter.Name())
+	_ = os.Remove(this.rangePath)
+}

internal/caches/writer_partial_file_test.go

@@ -0,0 +1,50 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/iwind/TeaGo/types"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestPartialFileWriter_Write(t *testing.T) {
+	var path = "/tmp/test_partial.cache"
+	_ = os.Remove(path)
+
+	var reader = func() {
+		data, err := os.ReadFile(path)
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log("["+types.String(len(data))+"]", string(data))
+	}
+
+	fp, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0666)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var ranges = caches.NewPartialRanges()
+	var writer = caches.NewPartialFileWriter(fp, "test", time.Now().Unix()+86500, true, true, 0, ranges, func() {
+		t.Log("end")
+	})
+	_, err = writer.WriteHeader([]byte("header"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// 移动位置
+	err = writer.WriteAt(100, []byte("HELLO"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	reader()
+}

internal/compressions/reader.go

@@ -2,7 +2,14 @@
 
 package compressions
 
+import "io"
+
 type Reader interface {
 	Read(p []byte) (n int, err error)
+	Reset(reader io.Reader) error
+	RawClose() error
 	Close() error
+
+	SetPool(pool *ReaderPool)
+	ResetFinish()
 }

internal/compressions/reader_base.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+type BaseReader struct {
+	pool *ReaderPool
+
+	isFinished bool
+}
+
+func (this *BaseReader) SetPool(pool *ReaderPool) {
+	this.pool = pool
+}
+
+func (this *BaseReader) Finish(obj Reader) error {
+	err := obj.RawClose()
+	if err == nil && this.pool != nil && !this.isFinished {
+		this.pool.Put(obj)
+	}
+	this.isFinished = true
+	return err
+}
+
+func (this *BaseReader) ResetFinish() {
+	this.isFinished = false
+}

internal/compressions/reader_brotli.go

@@ -9,10 +9,16 @@ import (
 )
 
 type BrotliReader struct {
+	BaseReader
+
 	reader *brotli.Reader
 }
 
 func NewBrotliReader(reader io.Reader) (Reader, error) {
+	return sharedBrotliReaderPool.Get(reader)
+}
+
+func newBrotliReader(reader io.Reader) (Reader, error) {
 	return &BrotliReader{reader: brotli.NewReader(reader)}, nil
 }
 
@@ -24,6 +30,14 @@ func (this *BrotliReader) Read(p []byte) (n int, err error) {
 	return
 }
 
-func (this *BrotliReader) Close() error {
+func (this *BrotliReader) Reset(reader io.Reader) error {
+	return this.reader.Reset(reader)
+}
+
+func (this *BrotliReader) RawClose() error {
 	return nil
 }
+
+func (this *BrotliReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_brotli_test.go

@@ -0,0 +1,51 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"io"
+	"testing"
+)
+
+func TestBrotliReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewBrotliReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}

internal/compressions/reader_deflate.go

@@ -8,10 +8,16 @@ import (
 )
 
 type DeflateReader struct {
+	BaseReader
+
 	reader io.ReadCloser
 }
 
 func NewDeflateReader(reader io.Reader) (Reader, error) {
+	return sharedDeflateReaderPool.Get(reader)
+}
+
+func newDeflateReader(reader io.Reader) (Reader, error) {
 	return &DeflateReader{reader: flate.NewReader(reader)}, nil
 }
 
@@ -19,6 +25,15 @@ func (this *DeflateReader) Read(p []byte) (n int, err error) {
 	return this.reader.Read(p)
 }
 
-func (this *DeflateReader) Close() error {
+func (this *DeflateReader) Reset(reader io.Reader) error {
+	this.reader = flate.NewReader(reader)
+	return nil
+}
+
+func (this *DeflateReader) RawClose() error {
 	return this.reader.Close()
 }
+
+func (this *DeflateReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_deflate_test.go

@@ -0,0 +1,51 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"io"
+	"testing"
+)
+
+func TestDeflateReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewDeflateWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewDeflateReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}

internal/compressions/reader_gzip.go

@@ -3,15 +3,21 @@
 package compressions
 
 import (
-	"compress/gzip"
+	"github.com/klauspost/compress/gzip"
 	"io"
 )
 
 type GzipReader struct {
+	BaseReader
+
 	reader *gzip.Reader
 }
 
 func NewGzipReader(reader io.Reader) (Reader, error) {
+	return sharedGzipReaderPool.Get(reader)
+}
+
+func newGzipReader(reader io.Reader) (Reader, error) {
 	r, err := gzip.NewReader(reader)
 	if err != nil {
 		return nil, err
@@ -25,6 +31,14 @@ func (this *GzipReader) Read(p []byte) (n int, err error) {
 	return this.reader.Read(p)
 }
 
-func (this *GzipReader) Close() error {
+func (this *GzipReader) Reset(reader io.Reader) error {
+	return this.reader.Reset(reader)
+}
+
+func (this *GzipReader) RawClose() error {
 	return this.reader.Close()
 }
+
+func (this *GzipReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_gzip_test.go

@@ -0,0 +1,106 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"strings"
+	"testing"
+)
+
+func TestGzipReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewGzipWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewGzipReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkGzipReader(b *testing.B) {
+	var randomData = func() []byte {
+		var b = strings.Builder{}
+		for i := 0; i < 1024; i++ {
+			b.WriteString(types.String(rands.Int64() % 10))
+		}
+		return []byte(b.String())
+	}
+
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewGzipWriter(buf, 5)
+	if err != nil {
+		b.Fatal(err)
+	}
+	_, err = writer.Write(randomData())
+	if err != nil {
+		b.Fatal(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		var newBytes = make([]byte, buf.Len())
+		copy(newBytes, buf.Bytes())
+		reader, err := compressions.NewGzipReader(bytes.NewReader(newBytes))
+		if err != nil {
+			b.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				_ = data[:n]
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				b.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}

internal/compressions/reader_pool.go

@@ -0,0 +1,56 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"io"
+)
+
+type ReaderPool struct {
+	c       chan Reader
+	newFunc func(reader io.Reader) (Reader, error)
+}
+
+func NewReaderPool(maxSize int, newFunc func(reader io.Reader) (Reader, error)) *ReaderPool {
+	if maxSize <= 0 {
+		maxSize = 1024
+	}
+
+	return &ReaderPool{
+		c:       make(chan Reader, maxSize),
+		newFunc: newFunc,
+	}
+}
+
+func (this *ReaderPool) Get(parentReader io.Reader) (Reader, error) {
+	select {
+	case reader := <-this.c:
+		err := reader.Reset(parentReader)
+		if err != nil {
+			// create new
+			reader, err = this.newFunc(parentReader)
+			if err != nil {
+				return nil, err
+			}
+			reader.SetPool(this)
+			return reader, nil
+		}
+		reader.ResetFinish()
+		return reader, nil
+	default:
+		// create new
+		reader, err := this.newFunc(parentReader)
+		if err != nil {
+			return nil, err
+		}
+		reader.SetPool(this)
+		return reader, nil
+	}
+}
+
+func (this *ReaderPool) Put(reader Reader) {
+	select {
+	case this.c <- reader:
+	default:
+	}
+}

internal/compressions/reader_pool_brotli.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedBrotliReaderPool *ReaderPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedBrotliReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newBrotliReader(reader)
+	})
+}

internal/compressions/reader_pool_deflate.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedDeflateReaderPool *ReaderPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedDeflateReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newDeflateReader(reader)
+	})
+}

internal/compressions/reader_pool_gzip.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedGzipReaderPool *ReaderPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedGzipReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newGzipReader(reader)
+	})
+}

internal/compressions/reader_pool_zstd.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedZSTDReaderPool *ReaderPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedZSTDReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newZSTDReader(reader)
+	})
+}

internal/compressions/reader_zstd.go

@@ -0,0 +1,45 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"github.com/klauspost/compress/zstd"
+	"io"
+)
+
+type ZSTDReader struct {
+	BaseReader
+
+	reader *zstd.Decoder
+}
+
+func NewZSTDReader(reader io.Reader) (Reader, error) {
+	return sharedZSTDReaderPool.Get(reader)
+}
+
+func newZSTDReader(reader io.Reader) (Reader, error) {
+	r, err := zstd.NewReader(reader)
+	if err != nil {
+		return nil, err
+	}
+	return &ZSTDReader{
+		reader: r,
+	}, nil
+}
+
+func (this *ZSTDReader) Read(p []byte) (n int, err error) {
+	return this.reader.Read(p)
+}
+
+func (this *ZSTDReader) Reset(reader io.Reader) error {
+	return this.reader.Reset(reader)
+}
+
+func (this *ZSTDReader) RawClose() error {
+	this.reader.Close()
+	return nil
+}
+
+func (this *ZSTDReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_zstd_test.go

@@ -0,0 +1,106 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"strings"
+	"testing"
+)
+
+func TestZSTDReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewZSTDWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewZSTDReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkZSTDReader(b *testing.B) {
+	var randomData = func() []byte {
+		var b = strings.Builder{}
+		for i := 0; i < 1024; i++ {
+			b.WriteString(types.String(rands.Int64() % 10))
+		}
+		return []byte(b.String())
+	}
+
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewZSTDWriter(buf, 5)
+	if err != nil {
+		b.Fatal(err)
+	}
+	_, err = writer.Write(randomData())
+	if err != nil {
+		b.Fatal(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		var newBytes = make([]byte, buf.Len())
+		copy(newBytes, buf.Bytes())
+		reader, err := compressions.NewZSTDReader(bytes.NewReader(newBytes))
+		if err != nil {
+			b.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				_ = data[:n]
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				b.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}

internal/compressions/utils.go

@@ -14,10 +14,21 @@ const (
 	ContentEncodingBr      ContentEncoding = "br"
 	ContentEncodingGzip    ContentEncoding = "gzip"
 	ContentEncodingDeflate ContentEncoding = "deflate"
+	ContentEncodingZSTD    ContentEncoding = "zstd"
 )
 
 var ErrNotSupportedContentEncoding = errors.New("not supported content encoding")
 
+// AllEncodings 当前支持的所有编码
+func AllEncodings() []ContentEncoding {
+	return []ContentEncoding{
+		ContentEncodingBr,
+		ContentEncodingGzip,
+		ContentEncodingZSTD,
+		ContentEncodingDeflate,
+	}
+}
+
 // NewReader 获取Reader
 func NewReader(reader io.Reader, contentEncoding ContentEncoding) (Reader, error) {
 	switch contentEncoding {
@@ -27,12 +38,13 @@ func NewReader(reader io.Reader, contentEncoding ContentEncoding) (Reader, error
 		return NewGzipReader(reader)
 	case ContentEncodingDeflate:
 		return NewDeflateReader(reader)
+	case ContentEncodingZSTD:
+		return NewZSTDReader(reader)
 	}
 	return nil, ErrNotSupportedContentEncoding
 }
 
 // NewWriter 获取Writer
-// TODO 考虑重用Writer
 func NewWriter(writer io.Writer, compressType serverconfigs.HTTPCompressionType, level int) (Writer, error) {
 	switch compressType {
 	case serverconfigs.HTTPCompressionTypeGzip:
@@ -41,6 +53,8 @@ func NewWriter(writer io.Writer, compressType serverconfigs.HTTPCompressionType,
 		return NewDeflateWriter(writer, level)
 	case serverconfigs.HTTPCompressionTypeBrotli:
 		return NewBrotliWriter(writer, level)
+	case serverconfigs.HTTPCompressionTypeZSTD:
+		return NewZSTDWriter(writer, level)
 	}
 	return nil, errors.New("invalid compression type '" + compressType + "'")
 }

internal/compressions/writer.go

@@ -2,9 +2,16 @@
 
 package compressions
 
+import "io"
+
 type Writer interface {
 	Write(p []byte) (int, error)
 	Flush() error
+	Reset(writer io.Writer)
+	RawClose() error
 	Close() error
 	Level() int
+
+	SetPool(pool *WriterPool)
+	ResetFinish()
 }

internal/compressions/writer_base.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+type BaseWriter struct {
+	pool *WriterPool
+
+	isFinished bool
+}
+
+func (this *BaseWriter) SetPool(pool *WriterPool) {
+	this.pool = pool
+}
+
+func (this *BaseWriter) Finish(obj Writer) error {
+	err := obj.RawClose()
+	if err == nil && this.pool != nil && !this.isFinished {
+		this.pool.Put(obj)
+	}
+	this.isFinished = true
+	return err
+}
+
+func (this *BaseWriter) ResetFinish() {
+	this.isFinished = false
+}

internal/compressions/writer_brotli.go

@@ -8,19 +8,28 @@ import (
 )
 
 type BrotliWriter struct {
+	BaseWriter
+
 	writer *brotli.Writer
 	level  int
 }
 
 func NewBrotliWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedBrotliWriterPool.Get(writer, level)
+}
+
+func newBrotliWriter(writer io.Writer, level int) (*BrotliWriter, error) {
 	if level <= 0 {
 		level = brotli.BestSpeed
 	} else if level > brotli.BestCompression {
 		level = brotli.BestCompression
 	}
 	return &BrotliWriter{
-		writer: brotli.NewWriterLevel(writer, level),
-		level:  level,
+		writer: brotli.NewWriterOptions(writer, brotli.WriterOptions{
+			Quality: level,
+			LGWin:   13, // TODO 在全局设置里可以设置此值
+		}),
+		level: level,
 	}, nil
 }
 
@@ -32,10 +41,18 @@ func (this *BrotliWriter) Flush() error {
 	return this.writer.Flush()
 }
 
-func (this *BrotliWriter) Close() error {
+func (this *BrotliWriter) Reset(newWriter io.Writer) {
+	this.writer.Reset(newWriter)
+}
+
+func (this *BrotliWriter) RawClose() error {
 	return this.writer.Close()
 }
 
+func (this *BrotliWriter) Close() error {
+	return this.Finish(this)
+}
+
 func (this *BrotliWriter) Level() int {
 	return this.level
 }

internal/compressions/writer_brotli_test.go

@@ -0,0 +1,152 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	stringutil "github.com/iwind/TeaGo/utils/string"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestBrotliWriter_LargeFile(t *testing.T) {
+	var data = []byte{}
+	for i := 0; i < 1024*1024; i++ {
+		data = append(data, stringutil.Rand(32)...)
+	}
+	t.Log(len(data)/1024/1024, "M")
+
+	var before = time.Now()
+	defer func() {
+		t.Log(time.Since(before).Seconds()*1000, "ms")
+	}()
+
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewBrotliWriter(buf, 5)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var offset = 0
+	var size = 4096
+	for offset < len(data) {
+		_, err = writer.Write(data[offset : offset+size])
+		if err != nil {
+			t.Fatal(err)
+		}
+		offset += size
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func BenchmarkBrotliWriter_Write(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}
+
+func BenchmarkBrotliWriter_Write_Parallel(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			var buf = &bytes.Buffer{}
+			writer, err := compressions.NewBrotliWriter(buf, 5)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			for j := 0; j < 100; j++ {
+				_, err = writer.Write(data)
+				if err != nil {
+					b.Fatal(err)
+				}
+
+				/**err = writer.Flush()
+				if err != nil {
+					b.Fatal(err)
+				}**/
+			}
+
+			_ = writer.Close()
+		}
+	})
+}
+
+func BenchmarkBrotliWriter_Write_Small(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 16))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}
+
+func BenchmarkBrotliWriter_Write_Large(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 4096))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}

internal/compressions/writer_deflate.go

@@ -8,11 +8,17 @@ import (
 )
 
 type DeflateWriter struct {
+	BaseWriter
+
 	writer *flate.Writer
 	level  int
 }
 
 func NewDeflateWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedDeflateWriterPool.Get(writer, level)
+}
+
+func newDeflateWriter(writer io.Writer, level int) (Writer, error) {
 	if level <= 0 {
 		level = flate.BestSpeed
 	} else if level > flate.BestCompression {
@@ -38,10 +44,18 @@ func (this *DeflateWriter) Flush() error {
 	return this.writer.Flush()
 }
 
-func (this *DeflateWriter) Close() error {
+func (this *DeflateWriter) Reset(writer io.Writer) {
+	this.writer.Reset(writer)
+}
+
+func (this *DeflateWriter) RawClose() error {
 	return this.writer.Close()
 }
 
+func (this *DeflateWriter) Close() error {
+	return this.Finish(this)
+}
+
 func (this *DeflateWriter) Level() int {
 	return this.level
 }

internal/compressions/writer_deflate_test.go

@@ -0,0 +1,36 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"strings"
+	"testing"
+)
+
+func BenchmarkDeflateWriter_Write(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewDeflateWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}

internal/compressions/writer_encoding.go

@@ -1,51 +0,0 @@
-// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
-
-package compressions
-
-import (
-	"bytes"
-	"io"
-)
-
-type EncodingWriter struct {
-	contentEncoding ContentEncoding
-	writer          Writer
-	buf             *bytes.Buffer
-}
-
-func NewEncodingWriter(contentEncoding ContentEncoding, writer Writer) (Writer, error) {
-	return &EncodingWriter{
-		contentEncoding: contentEncoding,
-		writer:          writer,
-		buf:             &bytes.Buffer{},
-	}, nil
-}
-
-func (this *EncodingWriter) Write(p []byte) (int, error) {
-	return this.buf.Write(p)
-}
-
-func (this *EncodingWriter) Flush() error {
-	return this.writer.Flush()
-}
-
-func (this *EncodingWriter) Close() error {
-	reader, err := NewReader(this.buf, this.contentEncoding)
-	if err != nil {
-		_ = this.writer.Close()
-		return err
-	}
-	_, err = io.Copy(this.writer, reader)
-	if err != nil {
-		_ = reader.Close()
-		_ = this.writer.Close()
-		return err
-	}
-
-	_ = reader.Close()
-	return this.writer.Close()
-}
-
-func (this *EncodingWriter) Level() int {
-	return this.writer.Level()
-}

internal/compressions/writer_encoding_test.go

@@ -1,47 +0,0 @@
-// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
-
-package compressions
-
-import (
-	"bytes"
-	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
-	"testing"
-)
-
-func TestNewEncodingWriter(t *testing.T) {
-	var buf = &bytes.Buffer{}
-
-	subWriter, err := NewWriter(buf, serverconfigs.HTTPCompressionTypeGzip, 5)
-	if err != nil {
-		t.Fatal(err)
-	}
-	writer, err := NewEncodingWriter(ContentEncodingGzip, subWriter)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	gzipBuf := &bytes.Buffer{}
-	gzipWriter, err := NewGzipWriter(gzipBuf, 5)
-	if err != nil {
-		t.Fatal(err)
-	}
-	_, err = gzipWriter.Write([]byte("Hello"))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	_, err = gzipWriter.Write([]byte("World"))
-	if err != nil {
-		t.Fatal(err)
-	}
-	_ = gzipWriter.Close()
-
-	_, err = writer.Write(gzipBuf.Bytes())
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	_ = writer.Close()
-
-	t.Log(buf.String())
-}

internal/compressions/writer_gzip.go

@@ -3,16 +3,22 @@
 package compressions
 
 import (
-	"compress/gzip"
+	"github.com/klauspost/compress/gzip"
 	"io"
 )
 
 type GzipWriter struct {
+	BaseWriter
+
 	writer *gzip.Writer
 	level  int
 }
 
 func NewGzipWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedGzipWriterPool.Get(writer, level)
+}
+
+func newGzipWriter(writer io.Writer, level int) (Writer, error) {
 	if level <= 0 {
 		level = gzip.BestSpeed
 	} else if level > gzip.BestCompression {
@@ -38,10 +44,18 @@ func (this *GzipWriter) Flush() error {
 	return this.writer.Flush()
 }
 
-func (this *GzipWriter) Close() error {
+func (this *GzipWriter) Reset(writer io.Writer) {
+	this.writer.Reset(writer)
+}
+
+func (this *GzipWriter) RawClose() error {
 	return this.writer.Close()
 }
 
+func (this *GzipWriter) Close() error {
+	return this.Finish(this)
+}
+
 func (this *GzipWriter) Level() int {
 	return this.level
 }

internal/compressions/writer_gzip_test.go

@@ -0,0 +1,64 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"strings"
+	"testing"
+)
+
+func BenchmarkGzipWriter_Write(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewGzipWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}
+
+func BenchmarkGzipWriter_Write_Parallel(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			var buf = &bytes.Buffer{}
+			writer, err := compressions.NewGzipWriter(buf, 5)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			for j := 0; j < 100; j++ {
+				_, err = writer.Write(data)
+				if err != nil {
+					b.Fatal(err)
+				}
+
+				/**err = writer.Flush()
+				if err != nil {
+					b.Fatal(err)
+				}**/
+			}
+
+			_ = writer.Close()
+		}
+	})
+}

internal/compressions/writer_pool.go

@@ -0,0 +1,61 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"io"
+)
+
+type WriterPool struct {
+	m       map[int]chan Writer // level => chan Writer
+	newFunc func(writer io.Writer, level int) (Writer, error)
+}
+
+func NewWriterPool(maxSize int, maxLevel int, newFunc func(writer io.Writer, level int) (Writer, error)) *WriterPool {
+	if maxSize <= 0 {
+		maxSize = 1024
+	}
+
+	var m = map[int]chan Writer{}
+	for i := 0; i <= maxLevel; i++ {
+		m[i] = make(chan Writer, maxSize)
+	}
+
+	return &WriterPool{
+		m:       m,
+		newFunc: newFunc,
+	}
+}
+
+func (this *WriterPool) Get(parentWriter io.Writer, level int) (Writer, error) {
+	c, ok := this.m[level]
+	if !ok {
+		c = this.m[0]
+	}
+
+	select {
+	case writer := <-c:
+		writer.Reset(parentWriter)
+		writer.ResetFinish()
+		return writer, nil
+	default:
+		writer, err := this.newFunc(parentWriter, level)
+		if err != nil {
+			return nil, err
+		}
+		writer.SetPool(this)
+		return writer, nil
+	}
+}
+
+func (this *WriterPool) Put(writer Writer) {
+	var level = writer.Level()
+	c, ok := this.m[level]
+	if !ok {
+		c = this.m[0]
+	}
+	select {
+	case c <- writer:
+	default:
+	}
+}

internal/compressions/writer_pool_brotli.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/andybalholm/brotli"
+	"io"
+)
+
+var sharedBrotliWriterPool *WriterPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedBrotliWriterPool = NewWriterPool(maxSize, brotli.BestCompression, func(writer io.Writer, level int) (Writer, error) {
+		return newBrotliWriter(writer, level)
+	})
+}

internal/compressions/writer_pool_deflate.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"compress/flate"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedDeflateWriterPool *WriterPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedDeflateWriterPool = NewWriterPool(maxSize, flate.BestCompression, func(writer io.Writer, level int) (Writer, error) {
+		return newDeflateWriter(writer, level)
+	})
+}

internal/compressions/writer_pool_gzip.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"compress/gzip"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedGzipWriterPool *WriterPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedGzipWriterPool = NewWriterPool(maxSize, gzip.BestCompression, func(writer io.Writer, level int) (Writer, error) {
+		return newGzipWriter(writer, level)
+	})
+}

internal/compressions/writer_pool_zstd.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/klauspost/compress/zstd"
+	"io"
+)
+
+var sharedZSTDWriterPool *WriterPool
+
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedZSTDWriterPool = NewWriterPool(maxSize, int(zstd.SpeedBestCompression), func(writer io.Writer, level int) (Writer, error) {
+		return newZSTDWriter(writer, level)
+	})
+}

internal/compressions/writer_zstd.go

@@ -0,0 +1,57 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"github.com/klauspost/compress/zstd"
+	"io"
+)
+
+type ZSTDWriter struct {
+	BaseWriter
+
+	writer *zstd.Encoder
+	level  int
+}
+
+func NewZSTDWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedZSTDWriterPool.Get(writer, level)
+}
+
+func newZSTDWriter(writer io.Writer, level int) (Writer, error) {
+	var zstdLevel = zstd.EncoderLevelFromZstd(level)
+
+	zstdWriter, err := zstd.NewWriter(writer, zstd.WithEncoderLevel(zstdLevel))
+	if err != nil {
+		return nil, err
+	}
+
+	return &ZSTDWriter{
+		writer: zstdWriter,
+		level:  level,
+	}, nil
+}
+
+func (this *ZSTDWriter) Write(p []byte) (int, error) {
+	return this.writer.Write(p)
+}
+
+func (this *ZSTDWriter) Flush() error {
+	return this.writer.Flush()
+}
+
+func (this *ZSTDWriter) Reset(writer io.Writer) {
+	this.writer.Reset(writer)
+}
+
+func (this *ZSTDWriter) RawClose() error {
+	return this.writer.Close()
+}
+
+func (this *ZSTDWriter) Close() error {
+	return this.Finish(this)
+}
+
+func (this *ZSTDWriter) Level() int {
+	return this.level
+}

internal/compressions/writer_zstd_test.go

@@ -0,0 +1,82 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"strings"
+	"testing"
+)
+
+func TestNewZSTDWriter(t *testing.T) {
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewZSTDWriter(buf, 10)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var originData = []byte(strings.Repeat("Hello", 1024))
+	_, err = writer.Write(originData)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("origin data:", len(originData), "result:", buf.Len())
+}
+
+func BenchmarkZSTDWriter_Write(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewZSTDWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}
+
+func BenchmarkZSTDWriter_Write_Parallel(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			var buf = &bytes.Buffer{}
+			writer, err := compressions.NewZSTDWriter(buf, 5)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			for j := 0; j < 100; j++ {
+				_, err = writer.Write(data)
+				if err != nil {
+					b.Fatal(err)
+				}
+
+				/**err = writer.Flush()
+				if err != nil {
+					b.Fatal(err)
+				}**/
+			}
+
+			_ = writer.Close()
+		}
+	})
+}

internal/configs/api_config.go

@@ -1,22 +1,23 @@
 package configs
 
 import (
-	"github.com/go-yaml/yaml"
 	"github.com/iwind/TeaGo/Tea"
-	"io/ioutil"
+	"gopkg.in/yaml.v3"
+	"os"
 )
 
-// 节点API配置
+// APIConfig 节点API配置
 type APIConfig struct {
 	RPC struct {
-		Endpoints []string `yaml:"endpoints"`
+		Endpoints     []string `yaml:"endpoints"`
+		DisableUpdate bool     `yaml:"disableUpdate"`
 	} `yaml:"rpc"`
 	NodeId string `yaml:"nodeId"`
 	Secret string `yaml:"secret"`
 }
 
 func LoadAPIConfig() (*APIConfig, error) {
-	data, err := ioutil.ReadFile(Tea.ConfigFile("api.yaml"))
+	data, err := os.ReadFile(Tea.ConfigFile("api.yaml"))
 	if err != nil {
 		return nil, err
 	}
@@ -30,12 +31,12 @@ func LoadAPIConfig() (*APIConfig, error) {
 	return config, nil
 }
 
-// 保存到文件
+// WriteFile 保存到文件
 func (this *APIConfig) WriteFile(path string) error {
 	data, err := yaml.Marshal(this)
 	if err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(path, data, 0666)
+	err = os.WriteFile(path, data, 0666)
 	return err
 }

internal/configs/api_config_test.go

@@ -1,11 +1,15 @@
-package configs
+package configs_test
 
-import "testing"
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/configs"
+	_ "github.com/iwind/TeaGo/bootstrap"
+	"testing"
+)
 
 func TestLoadAPIConfig(t *testing.T) {
-	config, err := LoadAPIConfig()
+	config, err := configs.LoadAPIConfig()
 	if err != nil {
 		t.Fatal(err)
 	}
-	t.Log(config)
+	t.Logf("%+v", config)
 }

internal/configs/cluster_config.go

@@ -1,10 +1,11 @@
 package configs
 
-// 集群配置
+// ClusterConfig 集群配置
 type ClusterConfig struct {
 	RPC struct {
-		Endpoints []string `yaml:"endpoints"`
+		Endpoints     []string `yaml:"endpoints"`
+		DisableUpdate bool     `yaml:"disableUpdate"`
 	} `yaml:"rpc"`
 	ClusterId string `yaml:"clusterId"`
-	Secret string `yaml:"secret"`
+	Secret    string `yaml:"secret"`
 }

internal/conns/map.go

@@ -0,0 +1,117 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package conns
+
+import (
+	"net"
+	"sync"
+)
+
+var SharedMap = NewMap()
+
+type Map struct {
+	m map[string]map[int]net.Conn // ip => { port => Conn }
+
+	locker sync.RWMutex
+}
+
+func NewMap() *Map {
+	return &Map{
+		m: map[string]map[int]net.Conn{},
+	}
+}
+
+func (this *Map) Add(conn net.Conn) {
+	if conn == nil {
+		return
+	}
+	tcpAddr, ok := conn.RemoteAddr().(*net.TCPAddr)
+	if !ok {
+		return
+	}
+
+	var ip = tcpAddr.IP.String()
+	var port = tcpAddr.Port
+
+	this.locker.Lock()
+	defer this.locker.Unlock()
+	connMap, ok := this.m[ip]
+	if !ok {
+		this.m[ip] = map[int]net.Conn{
+			port: conn,
+		}
+	} else {
+		connMap[port] = conn
+	}
+}
+
+func (this *Map) Remove(conn net.Conn) {
+	if conn == nil {
+		return
+	}
+	tcpAddr, ok := conn.RemoteAddr().(*net.TCPAddr)
+	if !ok {
+		return
+	}
+
+	var ip = tcpAddr.IP.String()
+	var port = tcpAddr.Port
+
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	connMap, ok := this.m[ip]
+	if !ok {
+		return
+	}
+	delete(connMap, port)
+
+	if len(connMap) == 0 {
+		delete(this.m, ip)
+	}
+}
+
+func (this *Map) CountIPConns(ip string) int {
+	this.locker.RLock()
+	var l = len(this.m[ip])
+	this.locker.RUnlock()
+	return l
+}
+
+func (this *Map) CloseIPConns(ip string) {
+	var conns = []net.Conn{}
+
+	this.locker.RLock()
+	connMap, ok := this.m[ip]
+
+	// 复制，防止在Close时产生并发冲突
+	if ok {
+		for _, conn := range connMap {
+			conns = append(conns, conn)
+		}
+	}
+
+	// 需要在Close之前结束，防止死循环
+	this.locker.RUnlock()
+
+	if ok {
+		for _, conn := range conns {
+			_ = conn.Close()
+		}
+
+		// 这里不需要从 m 中删除，因为关闭时会自然触发回调
+	}
+}
+
+func (this *Map) AllConns() []net.Conn {
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	var result = []net.Conn{}
+	for _, m := range this.m {
+		for _, conn := range m {
+			result = append(result, conn)
+		}
+	}
+	return result
+}

internal/const/build.go

@@ -1,5 +1,6 @@
 // Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
-// +build community
+//go:build !plus
+// +build !plus
 
 package teaconst
 

internal/const/build_plus.go

@@ -1,4 +1,5 @@
 // Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build plus
 // +build plus
 
 package teaconst

internal/const/const.go

@@ -1,7 +1,7 @@
 package teaconst
 
 const (
-	Version = "0.4.0"
+	Version = "0.5.2"
 
 	ProductName = "Edge Node"
 	ProcessName = "edge-node"
@@ -13,4 +13,6 @@ const (
 
 	// SystemdServiceName systemd
 	SystemdServiceName = "edge-node"
+
+	AccessLogSockName = "edge-node.accesslog.sock"
 )

internal/const/vars.go

@@ -2,6 +2,11 @@
 
 package teaconst
 
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
+	"os"
+)
+
 var (
 	// 流量统计
 
@@ -10,4 +15,12 @@ var (
 
 	NodeId       int64 = 0
 	NodeIdString       = ""
+	IsDaemon           = len(os.Args) > 1 && os.Args[1] == "daemon"
+
+	GlobalProductName = nodeconfigs.DefaultProductName
+
+	IsQuiting    = false // 是否正在退出
+	EnableDBStat = false // 是否开启本地数据库统计
+
+	DiskIsFast = false // 是否为高速硬盘
 )

internal/encrypt/method.go

@@ -1,12 +1,12 @@
 package encrypt
 
 type MethodInterface interface {
-	// 初始化
+	// Init 初始化
 	Init(key []byte, iv []byte) error
 
-	// 加密
+	// Encrypt 加密
 	Encrypt(src []byte) (dst []byte, err error)
 
-	// 解密
+	// Decrypt 解密
 	Decrypt(dst []byte) (src []byte, err error)
 }

internal/errors/error.go

@@ -2,6 +2,7 @@ package errors
 
 import (
 	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
 	"path/filepath"
 	"runtime"
 	"strconv"
@@ -15,7 +16,7 @@ type errorObj struct {
 }
 
 func (this *errorObj) Error() string {
-	s := this.err.Error() + "\n  " + this.file
+	s := this.err.Error() + "\n  " + utils.RemoveWorkspace(this.file)
 	if len(this.funcName) > 0 {
 		s += ":" + this.funcName + "()"
 	}
@@ -23,7 +24,7 @@ func (this *errorObj) Error() string {
 	return s
 }
 
-// 新错误
+// New 新错误
 func New(errText string) error {
 	ptr, file, line, ok := runtime.Caller(1)
 	funcName := ""
@@ -39,7 +40,7 @@ func New(errText string) error {
 	}
 }
 
-// 包装已有错误
+// Wrap 包装已有错误
 func Wrap(err error) error {
 	if err == nil {
 		return nil

internal/events/events.go

@@ -3,8 +3,10 @@ package events
 type Event = string
 
 const (
-	EventStart  Event = "start"  // start loading
-	EventLoaded Event = "loaded" // first load
-	EventQuit   Event = "quit"   // quit node gracefully
-	EventReload Event = "reload" // reload config
+	EventStart         Event = "start"         // start loading
+	EventLoaded        Event = "loaded"        // first load
+	EventQuit          Event = "quit"          // quit node gracefully
+	EventReload        Event = "reload"        // reload config
+	EventTerminated    Event = "terminated"    // process terminated
+	EventNFTablesReady Event = "nftablesReady" // nftables ready
 )

internal/events/utils.go

@@ -1,27 +1,80 @@
 package events
 
-import "sync"
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"sync"
+)
 
-var eventsMap = map[string][]func(){} // event => []callbacks
+type Callbacks = []func()
+
+var eventsMap = map[Event]map[interface{}]Callbacks{} // event => map[event key][]callback
 var locker = sync.Mutex{}
 
-// 增加事件回调
-func On(event string, callback func()) {
+var eventKeyId = 0
+
+func NewKey() interface{} {
+	locker.Lock()
+	defer locker.Unlock()
+	eventKeyId++
+	return eventKeyId
+}
+
+// On 增加事件回调
+func On(event Event, callback func()) {
+	OnKey(event, nil, callback)
+}
+
+// OnKey 使用Key增加事件回调
+func OnKey(event Event, key interface{}, callback func()) {
+	if key == nil {
+		key = NewKey()
+	}
+
 	locker.Lock()
 	defer locker.Unlock()
 
-	callbacks, _ := eventsMap[event]
-	callbacks = append(callbacks, callback)
-	eventsMap[event] = callbacks
+	m, ok := eventsMap[event]
+	if !ok {
+		m = map[interface{}]Callbacks{}
+		eventsMap[event] = m
+	}
+	m[key] = append(m[key], callback)
 }
 
-// 通知事件
-func Notify(event string) {
+// Remove 删除事件回调
+func Remove(key interface{}) {
+	if key == nil {
+		return
+	}
+
 	locker.Lock()
-	callbacks, _ := eventsMap[event]
+	for k, m := range eventsMap {
+		_, ok := m[key]
+		if ok {
+			delete(m, key)
+			eventsMap[k] = m
+		}
+	}
+	locker.Unlock()
+}
+
+// Notify 通知事件
+func Notify(event Event) {
+	// 特殊事件
+	switch event {
+	case EventQuit:
+		teaconst.IsQuiting = true
+	case EventTerminated:
+		teaconst.IsQuiting = true
+	}
+
+	locker.Lock()
+	m := eventsMap[event]
 	locker.Unlock()
 
-	for _, callback := range callbacks {
-		callback()
+	for _, callbacks := range m {
+		for _, callback := range callbacks {
+			callback()
+		}
 	}
 }

internal/events/utils_test.go

@@ -1,16 +1,33 @@
-package events
+package events_test
 
-import "testing"
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/events"
+	"testing"
+)
 
 func TestOn(t *testing.T) {
-	On("hello", func() {
+	type User struct {
+		name string
+	}
+	var u = &User{}
+	var u2 = &User{}
+
+	events.On("hello", func() {
 		t.Log("world")
 	})
-	On("hello", func() {
+	events.On("hello", func() {
 		t.Log("world2")
 	})
-	On("hello2", func() {
+	events.OnKey("hello", u, func() {
+		t.Log("world3")
+	})
+	events.OnKey("hello", u, func() {
+		t.Log("world4")
+	})
+	events.Remove(u)
+	events.Remove(u2)
+	events.OnKey("hello2", nil, func() {
 		t.Log("world2")
 	})
-	Notify("hello")
+	events.Notify("hello")
 }

internal/firewalls/ddos_protection.go

@@ -0,0 +1,557 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build linux
+// +build linux
+
+package firewalls
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/ddosconfigs"
+	"github.com/TeaOSLab/EdgeNode/internal/events"
+	"github.com/TeaOSLab/EdgeNode/internal/firewalls/nftables"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"github.com/iwind/TeaGo/lists"
+	"github.com/iwind/TeaGo/types"
+	stringutil "github.com/iwind/TeaGo/utils/string"
+	"net"
+	"os/exec"
+	"strings"
+)
+
+var SharedDDoSProtectionManager = NewDDoSProtectionManager()
+
+func init() {
+	events.On(events.EventReload, func() {
+		if nftablesInstance == nil {
+			return
+		}
+
+		nodeConfig, _ := nodeconfigs.SharedNodeConfig()
+		if nodeConfig != nil {
+			err := SharedDDoSProtectionManager.Apply(nodeConfig.DDoSProtection)
+			if err != nil {
+				remotelogs.Error("FIREWALL", "apply DDoS protection failed: "+err.Error())
+			}
+		}
+	})
+
+	events.On(events.EventNFTablesReady, func() {
+		nodeConfig, _ := nodeconfigs.SharedNodeConfig()
+		if nodeConfig != nil {
+			err := SharedDDoSProtectionManager.Apply(nodeConfig.DDoSProtection)
+			if err != nil {
+				remotelogs.Error("FIREWALL", "apply DDoS protection failed: "+err.Error())
+			}
+		}
+	})
+}
+
+// DDoSProtectionManager DDoS防护
+type DDoSProtectionManager struct {
+	nftPath string
+
+	lastAllowIPList []string
+	lastConfig      []byte
+}
+
+// NewDDoSProtectionManager 获取新对象
+func NewDDoSProtectionManager() *DDoSProtectionManager {
+	nftPath, _ := exec.LookPath("nft")
+
+	return &DDoSProtectionManager{
+		nftPath: nftPath,
+	}
+}
+
+// Apply 应用配置
+func (this *DDoSProtectionManager) Apply(config *ddosconfigs.ProtectionConfig) error {
+	// 同集群节点IP白名单
+	var allowIPListChanged = false
+	nodeConfig, _ := nodeconfigs.SharedNodeConfig()
+	if nodeConfig != nil {
+		var allowIPList = nodeConfig.AllowedIPs
+		if !utils.ContainsSameStrings(allowIPList, this.lastAllowIPList) {
+			allowIPListChanged = true
+			this.lastAllowIPList = allowIPList
+		}
+	}
+
+	// 对比配置
+	configJSON, err := json.Marshal(config)
+	if err != nil {
+		return errors.New("encode config to json failed: " + err.Error())
+	}
+	if !allowIPListChanged && bytes.Equal(this.lastConfig, configJSON) {
+		return nil
+	}
+	remotelogs.Println("FIREWALL", "change DDoS protection config")
+
+	if len(this.nftPath) == 0 {
+		return errors.New("can not find nft command")
+	}
+
+	if nftablesInstance == nil {
+		return errors.New("nftables instance should not be nil")
+	}
+
+	if config == nil {
+		// TCP
+		err := this.removeTCPRules()
+		if err != nil {
+			return err
+		}
+
+		// TODO other protocols
+
+		return nil
+	}
+
+	// TCP
+	if config.TCP == nil {
+		err := this.removeTCPRules()
+		if err != nil {
+			return err
+		}
+	} else {
+		// allow ip list
+		var allowIPList = []string{}
+		for _, ipConfig := range config.TCP.AllowIPList {
+			allowIPList = append(allowIPList, ipConfig.IP)
+		}
+		for _, ip := range this.lastAllowIPList {
+			if !lists.ContainsString(allowIPList, ip) {
+				allowIPList = append(allowIPList, ip)
+			}
+		}
+		err = this.updateAllowIPList(allowIPList)
+		if err != nil {
+			return err
+		}
+
+		// tcp
+		if config.TCP.IsOn {
+			err := this.addTCPRules(config.TCP)
+			if err != nil {
+				return err
+			}
+		} else {
+			err := this.removeTCPRules()
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	this.lastConfig = configJSON
+
+	return nil
+}
+
+// 添加TCP规则
+func (this *DDoSProtectionManager) addTCPRules(tcpConfig *ddosconfigs.TCPConfig) error {
+	// 检查nft版本不能小于0.9
+	if len(nftablesInstance.version) > 0 && stringutil.VersionCompare("0.9", nftablesInstance.version) > 0 {
+		return nil
+	}
+
+	var ports = []int32{}
+	for _, portConfig := range tcpConfig.Ports {
+		if !lists.ContainsInt32(ports, portConfig.Port) {
+			ports = append(ports, portConfig.Port)
+		}
+	}
+	if len(ports) == 0 {
+		ports = []int32{80, 443}
+	}
+
+	for _, filter := range nftablesFilters {
+		chain, oldRules, err := this.getRules(filter)
+		if err != nil {
+			return errors.New("get old rules failed: " + err.Error())
+		}
+
+		var protocol = filter.protocol()
+
+		// max connections
+		var maxConnections = tcpConfig.MaxConnections
+		if maxConnections <= 0 {
+			maxConnections = nodeconfigs.DefaultTCPMaxConnections
+			if maxConnections <= 0 {
+				maxConnections = 100000
+			}
+		}
+
+		// max connections per ip
+		var maxConnectionsPerIP = tcpConfig.MaxConnectionsPerIP
+		if maxConnectionsPerIP <= 0 {
+			maxConnectionsPerIP = nodeconfigs.DefaultTCPMaxConnectionsPerIP
+			if maxConnectionsPerIP <= 0 {
+				maxConnectionsPerIP = 100000
+			}
+		}
+
+		// new connections rate (minutely)
+		var newConnectionsMinutelyRate = tcpConfig.NewConnectionsMinutelyRate
+		if newConnectionsMinutelyRate <= 0 {
+			newConnectionsMinutelyRate = nodeconfigs.DefaultTCPNewConnectionsMinutelyRate
+			if newConnectionsMinutelyRate <= 0 {
+				newConnectionsMinutelyRate = 100000
+			}
+		}
+		var newConnectionsMinutelyRateBlockTimeout = tcpConfig.NewConnectionsMinutelyRateBlockTimeout
+		if newConnectionsMinutelyRateBlockTimeout < 0 {
+			newConnectionsMinutelyRateBlockTimeout = 0
+		}
+
+		// new connections rate (secondly)
+		var newConnectionsSecondlyRate = tcpConfig.NewConnectionsSecondlyRate
+		if newConnectionsSecondlyRate <= 0 {
+			newConnectionsSecondlyRate = nodeconfigs.DefaultTCPNewConnectionsSecondlyRate
+			if newConnectionsSecondlyRate <= 0 {
+				newConnectionsSecondlyRate = 10000
+			}
+		}
+		var newConnectionsSecondlyRateBlockTimeout = tcpConfig.NewConnectionsSecondlyRateBlockTimeout
+		if newConnectionsSecondlyRateBlockTimeout < 0 {
+			newConnectionsSecondlyRateBlockTimeout = 0
+		}
+
+		// 检查是否有变化
+		var hasChanges = false
+		for _, port := range ports {
+			if !this.existsRule(oldRules, []string{"tcp", types.String(port), "maxConnections", types.String(maxConnections)}) {
+				hasChanges = true
+				break
+			}
+			if !this.existsRule(oldRules, []string{"tcp", types.String(port), "maxConnectionsPerIP", types.String(maxConnectionsPerIP)}) {
+				hasChanges = true
+				break
+			}
+			if !this.existsRule(oldRules, []string{"tcp", types.String(port), "newConnectionsRate", types.String(newConnectionsMinutelyRate), types.String(newConnectionsMinutelyRateBlockTimeout)}) {
+				hasChanges = true
+				break
+			}
+			if !this.existsRule(oldRules, []string{"tcp", types.String(port), "newConnectionsSecondlyRate", types.String(newConnectionsSecondlyRate), types.String(newConnectionsSecondlyRateBlockTimeout)}) {
+				hasChanges = true
+				break
+			}
+		}
+
+		if !hasChanges {
+			// 检查是否有多余的端口
+			var oldPorts = this.getTCPPorts(oldRules)
+			if !this.eqPorts(ports, oldPorts) {
+				hasChanges = true
+			}
+		}
+
+		if !hasChanges {
+			return nil
+		}
+
+		// 先清空所有相关规则
+		err = this.removeOldTCPRules(chain, oldRules)
+		if err != nil {
+			return errors.New("delete old rules failed: " + err.Error())
+		}
+
+		// 添加新规则
+		for _, port := range ports {
+			if maxConnections > 0 {
+				var cmd = exec.Command(this.nftPath, "add", "rule", protocol, filter.Name, nftablesChainName, "tcp", "dport", types.String(port), "ct", "count", "over", types.String(maxConnections), "counter", "drop", "comment", this.encodeUserData([]string{"tcp", types.String(port), "maxConnections", types.String(maxConnections)}))
+				var stderr = &bytes.Buffer{}
+				cmd.Stderr = stderr
+				err := cmd.Run()
+				if err != nil {
+					return errors.New("add nftables rule '" + cmd.String() + "' failed: " + err.Error() + " (" + stderr.String() + ")")
+				}
+			}
+
+			// TODO 让用户选择是drop还是reject
+			if maxConnectionsPerIP > 0 {
+				var cmd = exec.Command(this.nftPath, "add", "rule", protocol, filter.Name, nftablesChainName, "tcp", "dport", types.String(port), "meter", "meter-"+protocol+"-"+types.String(port)+"-max-connections", "{ "+protocol+" saddr ct count over "+types.String(maxConnectionsPerIP)+" }", "counter", "drop", "comment", this.encodeUserData([]string{"tcp", types.String(port), "maxConnectionsPerIP", types.String(maxConnectionsPerIP)}))
+				var stderr = &bytes.Buffer{}
+				cmd.Stderr = stderr
+				err := cmd.Run()
+				if err != nil {
+					return errors.New("add nftables rule '" + cmd.String() + "' failed: " + err.Error() + " (" + stderr.String() + ")")
+				}
+			}
+
+			// 超过一定速率就drop或者加入黑名单（分钟）
+			// TODO 让用户选择是drop还是reject
+			if newConnectionsMinutelyRate > 0 {
+				if newConnectionsMinutelyRateBlockTimeout > 0 {
+					var cmd = exec.Command(this.nftPath, "add", "rule", protocol, filter.Name, nftablesChainName, "tcp", "dport", types.String(port), "ct", "state", "new", "meter", "meter-"+protocol+"-"+types.String(port)+"-new-connections-rate", "{ "+protocol+" saddr limit rate over "+types.String(newConnectionsMinutelyRate)+"/minute burst "+types.String(newConnectionsMinutelyRate+3)+" packets }", "add", "@deny_set", "{"+protocol+" saddr timeout "+types.String(newConnectionsMinutelyRateBlockTimeout)+"s}", "comment", this.encodeUserData([]string{"tcp", types.String(port), "newConnectionsRate", types.String(newConnectionsMinutelyRate), types.String(newConnectionsMinutelyRateBlockTimeout)}))
+					var stderr = &bytes.Buffer{}
+					cmd.Stderr = stderr
+					err := cmd.Run()
+					if err != nil {
+						return errors.New("add nftables rule '" + cmd.String() + "' failed: " + err.Error() + " (" + stderr.String() + ")")
+					}
+				} else {
+					var cmd = exec.Command(this.nftPath, "add", "rule", protocol, filter.Name, nftablesChainName, "tcp", "dport", types.String(port), "ct", "state", "new", "meter", "meter-"+protocol+"-"+types.String(port)+"-new-connections-rate", "{ "+protocol+" saddr limit rate over "+types.String(newConnectionsMinutelyRate)+"/minute burst "+types.String(newConnectionsMinutelyRate+3)+" packets }" /**"add", "@deny_set", "{"+protocol+" saddr}",**/, "counter", "drop", "comment", this.encodeUserData([]string{"tcp", types.String(port), "newConnectionsRate", "0"}))
+					var stderr = &bytes.Buffer{}
+					cmd.Stderr = stderr
+					err := cmd.Run()
+					if err != nil {
+						return errors.New("add nftables rule '" + cmd.String() + "' failed: " + err.Error() + " (" + stderr.String() + ")")
+					}
+				}
+			}
+
+			// 超过一定速率就drop或者加入黑名单（秒）
+			// TODO 让用户选择是drop还是reject
+			if newConnectionsSecondlyRate > 0 {
+				if newConnectionsSecondlyRateBlockTimeout > 0 {
+					var cmd = exec.Command(this.nftPath, "add", "rule", protocol, filter.Name, nftablesChainName, "tcp", "dport", types.String(port), "ct", "state", "new", "meter", "meter-"+protocol+"-"+types.String(port)+"-new-connections-secondly-rate", "{ "+protocol+" saddr limit rate over "+types.String(newConnectionsSecondlyRate)+"/second burst "+types.String(newConnectionsSecondlyRate+3)+" packets }", "add", "@deny_set", "{"+protocol+" saddr timeout "+types.String(newConnectionsSecondlyRateBlockTimeout)+"s}", "comment", this.encodeUserData([]string{"tcp", types.String(port), "newConnectionsSecondlyRate", types.String(newConnectionsSecondlyRate), types.String(newConnectionsSecondlyRateBlockTimeout)}))
+					var stderr = &bytes.Buffer{}
+					cmd.Stderr = stderr
+					err := cmd.Run()
+					if err != nil {
+						return errors.New("add nftables rule '" + cmd.String() + "' failed: " + err.Error() + " (" + stderr.String() + ")")
+					}
+				} else {
+					var cmd = exec.Command(this.nftPath, "add", "rule", protocol, filter.Name, nftablesChainName, "tcp", "dport", types.String(port), "ct", "state", "new", "meter", "meter-"+protocol+"-"+types.String(port)+"-new-connections-secondly-rate", "{ "+protocol+" saddr limit rate over "+types.String(newConnectionsSecondlyRate)+"/second burst "+types.String(newConnectionsSecondlyRate+3)+" packets }" /**"add", "@deny_set", "{"+protocol+" saddr}",**/, "counter", "drop", "comment", this.encodeUserData([]string{"tcp", types.String(port), "newConnectionsSecondlyRate", "0"}))
+					var stderr = &bytes.Buffer{}
+					cmd.Stderr = stderr
+					err := cmd.Run()
+					if err != nil {
+						return errors.New("add nftables rule '" + cmd.String() + "' failed: " + err.Error() + " (" + stderr.String() + ")")
+					}
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+// 删除TCP规则
+func (this *DDoSProtectionManager) removeTCPRules() error {
+	for _, filter := range nftablesFilters {
+		chain, rules, err := this.getRules(filter)
+
+		// TCP
+		err = this.removeOldTCPRules(chain, rules)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// 组合user data
+// 数据中不能包含字母、数字、下划线以外的数据
+func (this *DDoSProtectionManager) encodeUserData(attrs []string) string {
+	if attrs == nil {
+		return ""
+	}
+
+	return "ZZ" + strings.Join(attrs, "_") + "ZZ"
+}
+
+// 解码user data
+func (this *DDoSProtectionManager) decodeUserData(data []byte) []string {
+	if len(data) == 0 {
+		return nil
+	}
+
+	var dataCopy = make([]byte, len(data))
+	copy(dataCopy, data)
+
+	var separatorLen = 2
+	var index1 = bytes.Index(dataCopy, []byte{'Z', 'Z'})
+	if index1 < 0 {
+		return nil
+	}
+
+	dataCopy = dataCopy[index1+separatorLen:]
+	var index2 = bytes.LastIndex(dataCopy, []byte{'Z', 'Z'})
+	if index2 < 0 {
+		return nil
+	}
+
+	var s = string(dataCopy[:index2])
+	var pieces = strings.Split(s, "_")
+	for index, piece := range pieces {
+		pieces[index] = strings.TrimSpace(piece)
+	}
+	return pieces
+}
+
+// 清除规则
+func (this *DDoSProtectionManager) removeOldTCPRules(chain *nftables.Chain, rules []*nftables.Rule) error {
+	for _, rule := range rules {
+		var pieces = this.decodeUserData(rule.UserData())
+		if len(pieces) < 4 {
+			continue
+		}
+		if pieces[0] != "tcp" {
+			continue
+		}
+		switch pieces[2] {
+		case "maxConnections", "maxConnectionsPerIP", "newConnectionsRate", "newConnectionsSecondlyRate":
+			err := chain.DeleteRule(rule)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+// 根据参数检查规则是否存在
+func (this *DDoSProtectionManager) existsRule(rules []*nftables.Rule, attrs []string) (exists bool) {
+	if len(attrs) == 0 {
+		return false
+	}
+	for _, oldRule := range rules {
+		var pieces = this.decodeUserData(oldRule.UserData())
+		if len(attrs) != len(pieces) {
+			continue
+		}
+		var isSame = true
+		for index, piece := range pieces {
+			if strings.TrimSpace(piece) != attrs[index] {
+				isSame = false
+				break
+			}
+		}
+		if isSame {
+			return true
+		}
+	}
+	return false
+}
+
+// 获取规则中的端口号
+func (this *DDoSProtectionManager) getTCPPorts(rules []*nftables.Rule) []int32 {
+	var ports = []int32{}
+	for _, rule := range rules {
+		var pieces = this.decodeUserData(rule.UserData())
+		if len(pieces) != 4 {
+			continue
+		}
+		if pieces[0] != "tcp" {
+			continue
+		}
+		var port = types.Int32(pieces[1])
+		if port > 0 && !lists.ContainsInt32(ports, port) {
+			ports = append(ports, port)
+		}
+	}
+	return ports
+}
+
+// 检查端口是否一样
+func (this *DDoSProtectionManager) eqPorts(ports1 []int32, ports2 []int32) bool {
+	if len(ports1) != len(ports2) {
+		return false
+	}
+
+	var portMap = map[int32]bool{}
+	for _, port := range ports2 {
+		portMap[port] = true
+	}
+
+	for _, port := range ports1 {
+		_, ok := portMap[port]
+		if !ok {
+			return false
+		}
+	}
+	return true
+}
+
+// 查找Table
+func (this *DDoSProtectionManager) getTable(filter *nftablesTableDefinition) (*nftables.Table, error) {
+	var family nftables.TableFamily
+	if filter.IsIPv4 {
+		family = nftables.TableFamilyIPv4
+	} else if filter.IsIPv6 {
+		family = nftables.TableFamilyIPv6
+	} else {
+		return nil, errors.New("table '" + filter.Name + "' should be IPv4 or IPv6")
+	}
+	return nftablesInstance.conn.GetTable(filter.Name, family)
+}
+
+// 查找所有规则
+func (this *DDoSProtectionManager) getRules(filter *nftablesTableDefinition) (*nftables.Chain, []*nftables.Rule, error) {
+	table, err := this.getTable(filter)
+	if err != nil {
+		return nil, nil, errors.New("get table failed: " + err.Error())
+	}
+	chain, err := table.GetChain(nftablesChainName)
+	if err != nil {
+		return nil, nil, errors.New("get chain failed: " + err.Error())
+	}
+	rules, err := chain.GetRules()
+	return chain, rules, err
+}
+
+// 更新白名单
+func (this *DDoSProtectionManager) updateAllowIPList(allIPList []string) error {
+	if nftablesInstance == nil {
+		return nil
+	}
+
+	var allMap = map[string]zero.Zero{}
+	for _, ip := range allIPList {
+		allMap[ip] = zero.New()
+	}
+
+	for _, set := range []*nftables.Set{nftablesInstance.allowIPv4Set, nftablesInstance.allowIPv6Set} {
+		var isIPv4 = set == nftablesInstance.allowIPv4Set
+		var isIPv6 = !isIPv4
+
+		// 现有的
+		oldList, err := set.GetIPElements()
+		if err != nil {
+			return err
+		}
+		var oldMap = map[string]zero.Zero{} // ip=> zero
+		for _, ip := range oldList {
+			oldMap[ip] = zero.New()
+
+			if (utils.IsIPv4(ip) && isIPv4) || (utils.IsIPv6(ip) && isIPv6) {
+				_, ok := allMap[ip]
+				if !ok {
+					// 不存在则删除
+					err = set.DeleteIPElement(ip)
+					if err != nil {
+						return errors.New("delete ip element '" + ip + "' failed: " + err.Error())
+					}
+				}
+			}
+		}
+
+		// 新增的
+		for _, ip := range allIPList {
+			var ipObj = net.ParseIP(ip)
+			if ipObj == nil {
+				continue
+			}
+			if (utils.IsIPv4(ip) && isIPv4) || (utils.IsIPv6(ip) && isIPv6) {
+				_, ok := oldMap[ip]
+				if !ok {
+					// 不存在则添加
+					err = set.AddIPElement(ip, nil)
+					if err != nil {
+						return errors.New("add ip '" + ip + "' failed: " + err.Error())
+					}
+				}
+			}
+		}
+	}
+
+	return nil
+}

internal/firewalls/ddos_protection_others.go

@@ -0,0 +1,23 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build !linux
+// +build !linux
+
+package firewalls
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/ddosconfigs"
+)
+
+var SharedDDoSProtectionManager = NewDDoSProtectionManager()
+
+type DDoSProtectionManager struct {
+	nftPath string
+}
+
+func NewDDoSProtectionManager() *DDoSProtectionManager {
+	return &DDoSProtectionManager{}
+}
+
+func (this *DDoSProtectionManager) Apply(config *ddosconfigs.ProtectionConfig) error {
+	return nil
+}

internal/firewalls/firewall.go

@@ -0,0 +1,61 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package firewalls
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/events"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"runtime"
+	"sync"
+)
+
+var currentFirewall FirewallInterface
+var firewallLocker = &sync.Mutex{}
+
+// 初始化
+func init() {
+	events.On(events.EventLoaded, func() {
+		var firewall = Firewall()
+		if firewall.Name() != "mock" {
+			remotelogs.Println("FIREWALL", "found local firewall '"+firewall.Name()+"'")
+		}
+	})
+}
+
+// Firewall 查找当前系统中最适合的防火墙
+func Firewall() FirewallInterface {
+	firewallLocker.Lock()
+	defer firewallLocker.Unlock()
+	if currentFirewall != nil {
+		return currentFirewall
+	}
+
+	// nftables
+	if runtime.GOOS == "linux" {
+		nftables, err := NewNFTablesFirewall()
+		if err != nil {
+			remotelogs.Warn("FIREWALL", "'nftables' should be installed on the system to enhance security (init failed: "+err.Error()+")")
+		} else {
+			if nftables.IsReady() {
+				currentFirewall = nftables
+				events.Notify(events.EventNFTablesReady)
+				return nftables
+			} else {
+				remotelogs.Warn("FIREWALL", "'nftables' should be enabled on the system to enhance security")
+			}
+		}
+	}
+
+	// firewalld
+	if runtime.GOOS == "linux" {
+		var firewalld = NewFirewalld()
+		if firewalld.IsReady() {
+			currentFirewall = firewalld
+			return currentFirewall
+		}
+	}
+
+	// 至少返回一个
+	currentFirewall = NewMockFirewall()
+	return currentFirewall
+}

internal/firewalls/firewall_base.go

@@ -0,0 +1,47 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package firewalls
+
+import (
+	"github.com/iwind/TeaGo/types"
+	"strings"
+	"sync"
+	"time"
+)
+
+type BaseFirewall struct {
+	locker        sync.Mutex
+	latestIPTimes []string // [ip@time, ....]
+}
+
+// 检查是否在最近添加过
+func (this *BaseFirewall) checkLatestIP(ip string) bool {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	var expiredIndex = -1
+	for index, ipTime := range this.latestIPTimes {
+		var pieces = strings.Split(ipTime, "@")
+		var oldIP = pieces[0]
+		var oldTimestamp = pieces[1]
+		if types.Int64(oldTimestamp) < time.Now().Unix()-3 /** 3秒外表示过期 **/ {
+			expiredIndex = index
+			continue
+		}
+		if oldIP == ip {
+			return true
+		}
+	}
+
+	if expiredIndex > -1 {
+		this.latestIPTimes = this.latestIPTimes[expiredIndex+1:]
+	}
+
+	this.latestIPTimes = append(this.latestIPTimes, ip+"@"+types.String(time.Now().Unix()))
+	const maxLen = 128
+	if len(this.latestIPTimes) > maxLen {
+		this.latestIPTimes = this.latestIPTimes[1:]
+	}
+
+	return false
+}

internal/firewalls/firewall_firewalld.go

@@ -0,0 +1,224 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package firewalls
+
+import (
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/conns"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/iwind/TeaGo/types"
+	"os/exec"
+	"strings"
+)
+
+type firewalldCmd struct {
+	cmd    *exec.Cmd
+	denyIP string
+}
+
+type Firewalld struct {
+	BaseFirewall
+
+	isReady  bool
+	exe      string
+	cmdQueue chan *firewalldCmd
+}
+
+func NewFirewalld() *Firewalld {
+	var firewalld = &Firewalld{
+		cmdQueue: make(chan *firewalldCmd, 4096),
+	}
+
+	path, err := exec.LookPath("firewall-cmd")
+	if err == nil && len(path) > 0 {
+		var cmd = exec.Command(path, "--state")
+		err := cmd.Run()
+		if err == nil {
+			firewalld.exe = path
+			// TODO check firewalld status with 'firewall-cmd --state' (running or not running),
+			//      but we should recover the state when firewalld state changes, maybe check it every minutes
+
+			firewalld.isReady = true
+			firewalld.init()
+		}
+	}
+
+	return firewalld
+}
+
+func (this *Firewalld) init() {
+	goman.New(func() {
+		for c := range this.cmdQueue {
+			var cmd = c.cmd
+			err := cmd.Run()
+			if err != nil {
+				if strings.HasPrefix(err.Error(), "Warning:") {
+					continue
+				}
+				remotelogs.Warn("FIREWALL", "run command failed '"+cmd.String()+"': "+err.Error())
+			} else {
+				// 关闭连接
+				if len(c.denyIP) > 0 {
+					conns.SharedMap.CloseIPConns(c.denyIP)
+				}
+			}
+		}
+	})
+}
+
+// Name 名称
+func (this *Firewalld) Name() string {
+	return "firewalld"
+}
+
+func (this *Firewalld) IsReady() bool {
+	return this.isReady
+}
+
+// IsMock 是否为模拟
+func (this *Firewalld) IsMock() bool {
+	return false
+}
+
+func (this *Firewalld) AllowPort(port int, protocol string) error {
+	if !this.isReady {
+		return nil
+	}
+	var cmd = exec.Command(this.exe, "--add-port="+types.String(port)+"/"+protocol)
+	this.pushCmd(cmd, "")
+	return nil
+}
+
+func (this *Firewalld) AllowPortRangesPermanently(portRanges [][2]int, protocol string) error {
+	for _, portRange := range portRanges {
+		var port = this.PortRangeString(portRange, protocol)
+
+		{
+			var cmd = exec.Command(this.exe, "--add-port="+port, "--permanent")
+			this.pushCmd(cmd, "")
+		}
+
+		{
+			var cmd = exec.Command(this.exe, "--add-port="+port)
+			this.pushCmd(cmd, "")
+		}
+	}
+
+	return nil
+}
+
+func (this *Firewalld) RemovePort(port int, protocol string) error {
+	if !this.isReady {
+		return nil
+	}
+	var cmd = exec.Command(this.exe, "--remove-port="+types.String(port)+"/"+protocol)
+	this.pushCmd(cmd, "")
+	return nil
+}
+
+func (this *Firewalld) RemovePortRangePermanently(portRange [2]int, protocol string) error {
+	var port = this.PortRangeString(portRange, protocol)
+
+	{
+		var cmd = exec.Command(this.exe, "--remove-port="+port, "--permanent")
+		this.pushCmd(cmd, "")
+	}
+
+	{
+		var cmd = exec.Command(this.exe, "--remove-port="+port)
+		this.pushCmd(cmd, "")
+	}
+
+	return nil
+}
+
+func (this *Firewalld) PortRangeString(portRange [2]int, protocol string) string {
+	if portRange[0] == portRange[1] {
+		return types.String(portRange[0]) + "/" + protocol
+	} else {
+		return types.String(portRange[0]) + "-" + types.String(portRange[1]) + "/" + protocol
+	}
+}
+
+func (this *Firewalld) RejectSourceIP(ip string, timeoutSeconds int) error {
+	if !this.isReady {
+		return nil
+	}
+
+	// 避免短时间内重复添加
+	if this.checkLatestIP(ip) {
+		return nil
+	}
+
+	var family = "ipv4"
+	if strings.Contains(ip, ":") {
+		family = "ipv6"
+	}
+	var args = []string{"--add-rich-rule=rule family='" + family + "' source address='" + ip + "' reject"}
+	if timeoutSeconds > 0 {
+		args = append(args, "--timeout="+types.String(timeoutSeconds)+"s")
+	}
+	var cmd = exec.Command(this.exe, args...)
+	this.pushCmd(cmd, ip)
+	return nil
+}
+
+func (this *Firewalld) DropSourceIP(ip string, timeoutSeconds int, async bool) error {
+	if !this.isReady {
+		return nil
+	}
+
+	// 避免短时间内重复添加
+	if async && this.checkLatestIP(ip) {
+		return nil
+	}
+
+	var family = "ipv4"
+	if strings.Contains(ip, ":") {
+		family = "ipv6"
+	}
+	var args = []string{"--add-rich-rule=rule family='" + family + "' source address='" + ip + "' drop"}
+	if timeoutSeconds > 0 {
+		args = append(args, "--timeout="+types.String(timeoutSeconds)+"s")
+	}
+	var cmd = exec.Command(this.exe, args...)
+	if async {
+		this.pushCmd(cmd, ip)
+		return nil
+	}
+
+	// 关闭连接
+	defer conns.SharedMap.CloseIPConns(ip)
+
+	err := cmd.Run()
+	if err != nil {
+		return errors.New("run command failed '" + cmd.String() + "': " + err.Error())
+	}
+	return nil
+}
+
+func (this *Firewalld) RemoveSourceIP(ip string) error {
+	if !this.isReady {
+		return nil
+	}
+
+	var family = "ipv4"
+	if strings.Contains(ip, ":") {
+		family = "ipv6"
+	}
+	for _, action := range []string{"reject", "drop"} {
+		var args = []string{"--remove-rich-rule=rule family='" + family + "' source address='" + ip + "' " + action}
+		var cmd = exec.Command(this.exe, args...)
+		this.pushCmd(cmd, "")
+	}
+	return nil
+}
+
+func (this *Firewalld) pushCmd(cmd *exec.Cmd, denyIP string) {
+	select {
+	case this.cmdQueue <- &firewalldCmd{cmd: cmd, denyIP: denyIP}:
+	default:
+		// we discard the command
+	}
+}

internal/firewalls/firewall_interface.go

@@ -0,0 +1,33 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package firewalls
+
+// FirewallInterface 防火墙接口
+type FirewallInterface interface {
+	// Name 名称
+	Name() string
+
+	// IsReady 是否已准备被调用
+	IsReady() bool
+
+	// IsMock 是否为模拟
+	IsMock() bool
+
+	// AllowPort 允许端口
+	AllowPort(port int, protocol string) error
+
+	// RemovePort 删除端口
+	RemovePort(port int, protocol string) error
+
+	// RejectSourceIP 拒绝某个源IP连接
+	RejectSourceIP(ip string, timeoutSeconds int) error
+
+	// DropSourceIP 丢弃某个源IP数据
+	// ip 要封禁的IP
+	// timeoutSeconds 过期时间
+	// async 是否异步
+	DropSourceIP(ip string, timeoutSeconds int, async bool) error
+
+	// RemoveSourceIP 删除某个源IP
+	RemoveSourceIP(ip string) error
+}

internal/firewalls/firewall_mock.go

@@ -0,0 +1,60 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package firewalls
+
+// MockFirewall 模拟防火墙
+type MockFirewall struct {
+}
+
+func NewMockFirewall() *MockFirewall {
+	return &MockFirewall{}
+}
+
+// Name 名称
+func (this *MockFirewall) Name() string {
+	return "mock"
+}
+
+// IsReady 是否已准备被调用
+func (this *MockFirewall) IsReady() bool {
+	return true
+}
+
+// IsMock 是否为模拟
+func (this *MockFirewall) IsMock() bool {
+	return true
+}
+
+// AllowPort 允许端口
+func (this *MockFirewall) AllowPort(port int, protocol string) error {
+	_ = port
+	_ = protocol
+	return nil
+}
+
+// RemovePort 删除端口
+func (this *MockFirewall) RemovePort(port int, protocol string) error {
+	_ = port
+	_ = protocol
+	return nil
+}
+
+// RejectSourceIP 拒绝某个源IP连接
+func (this *MockFirewall) RejectSourceIP(ip string, timeoutSeconds int) error {
+	_ = ip
+	_ = timeoutSeconds
+	return nil
+}
+
+// DropSourceIP 丢弃某个源IP数据
+func (this *MockFirewall) DropSourceIP(ip string, timeoutSeconds int, async bool) error {
+	_ = ip
+	_ = timeoutSeconds
+	return nil
+}
+
+// RemoveSourceIP 删除某个源IP
+func (this *MockFirewall) RemoveSourceIP(ip string) error {
+	_ = ip
+	return nil
+}

internal/firewalls/firewall_nftables.go

@@ -0,0 +1,481 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build linux
+// +build linux
+
+package firewalls
+
+import (
+	"bytes"
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/conns"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/events"
+	"github.com/TeaOSLab/EdgeNode/internal/firewalls/nftables"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/iwind/TeaGo/types"
+	"net"
+	"os/exec"
+	"regexp"
+	"runtime"
+	"strings"
+	"time"
+)
+
+// check nft status, if being enabled we load it automatically
+func init() {
+	if teaconst.IsDaemon {
+		return
+	}
+
+	if runtime.GOOS == "linux" {
+		var ticker = time.NewTicker(3 * time.Minute)
+		goman.New(func() {
+			for range ticker.C {
+				// if already ready, we break
+				if nftablesIsReady {
+					ticker.Stop()
+					break
+				}
+				_, err := exec.LookPath("nft")
+				if err == nil {
+					nftablesFirewall, err := NewNFTablesFirewall()
+					if err != nil {
+						continue
+					}
+					currentFirewall = nftablesFirewall
+					remotelogs.Println("FIREWALL", "nftables is ready")
+
+					// fire event
+					if nftablesFirewall.IsReady() {
+						events.Notify(events.EventNFTablesReady)
+					}
+
+					ticker.Stop()
+					break
+				}
+			}
+		})
+	}
+}
+
+var nftablesInstance *NFTablesFirewall
+var nftablesIsReady = false
+var nftablesFilters = []*nftablesTableDefinition{
+	// we shorten the name for table name length restriction
+	{Name: "edge_dft_v4", IsIPv4: true},
+	{Name: "edge_dft_v6", IsIPv6: true},
+}
+var nftablesChainName = "input"
+
+type nftablesTableDefinition struct {
+	Name   string
+	IsIPv4 bool
+	IsIPv6 bool
+}
+
+func (this *nftablesTableDefinition) protocol() string {
+	if this.IsIPv6 {
+		return "ip6"
+	}
+	return "ip"
+}
+
+type blockIPItem struct {
+	action         string
+	ip             string
+	timeoutSeconds int
+}
+
+func NewNFTablesFirewall() (*NFTablesFirewall, error) {
+	var firewall = &NFTablesFirewall{
+		conn:        nftables.NewConn(),
+		dropIPQueue: make(chan *blockIPItem, 4096),
+	}
+	err := firewall.init()
+	if err != nil {
+		return nil, err
+	}
+
+	return firewall, nil
+}
+
+type NFTablesFirewall struct {
+	BaseFirewall
+
+	conn    *nftables.Conn
+	isReady bool
+	version string
+
+	allowIPv4Set *nftables.Set
+	allowIPv6Set *nftables.Set
+
+	denyIPv4Set *nftables.Set
+	denyIPv6Set *nftables.Set
+
+	firewalld *Firewalld
+
+	dropIPQueue chan *blockIPItem
+}
+
+func (this *NFTablesFirewall) init() error {
+	// check nft
+	nftPath, err := exec.LookPath("nft")
+	if err != nil {
+		return errors.New("nft not found")
+	}
+	this.version = this.readVersion(nftPath)
+
+	// table
+	for _, tableDef := range nftablesFilters {
+		var family nftables.TableFamily
+		if tableDef.IsIPv4 {
+			family = nftables.TableFamilyIPv4
+		} else if tableDef.IsIPv6 {
+			family = nftables.TableFamilyIPv6
+		} else {
+			return errors.New("invalid table family: " + types.String(tableDef))
+		}
+		table, err := this.conn.GetTable(tableDef.Name, family)
+		if err != nil {
+			if nftables.IsNotFound(err) {
+				if tableDef.IsIPv4 {
+					table, err = this.conn.AddIPv4Table(tableDef.Name)
+				} else if tableDef.IsIPv6 {
+					table, err = this.conn.AddIPv6Table(tableDef.Name)
+				}
+				if err != nil {
+					return errors.New("create table '" + tableDef.Name + "' failed: " + err.Error())
+				}
+			} else {
+				return errors.New("get table '" + tableDef.Name + "' failed: " + err.Error())
+			}
+		}
+		if table == nil {
+			return errors.New("can not create table '" + tableDef.Name + "'")
+		}
+
+		// chain
+		var chainName = nftablesChainName
+		chain, err := table.GetChain(chainName)
+		if err != nil {
+			if nftables.IsNotFound(err) {
+				chain, err = table.AddAcceptChain(chainName)
+				if err != nil {
+					return errors.New("create chain '" + chainName + "' failed: " + err.Error())
+				}
+			} else {
+				return errors.New("get chain '" + chainName + "' failed: " + err.Error())
+			}
+		}
+		if chain == nil {
+			return errors.New("can not create chain '" + chainName + "'")
+		}
+
+		// allow lo
+		var loRuleName = []byte("lo")
+		_, err = chain.GetRuleWithUserData(loRuleName)
+		if err != nil {
+			if nftables.IsNotFound(err) {
+				_, err = chain.AddAcceptInterfaceRule("lo", loRuleName)
+			}
+			if err != nil {
+				return errors.New("add 'lo' rule failed: " + err.Error())
+			}
+		}
+
+		// allow set
+		// "allow" should be always first
+		for _, setAction := range []string{"allow", "deny"} {
+			var setName = setAction + "_set"
+
+			set, err := table.GetSet(setName)
+			if err != nil {
+				if nftables.IsNotFound(err) {
+					var keyType nftables.SetDataType
+					if tableDef.IsIPv4 {
+						keyType = nftables.TypeIPAddr
+					} else if tableDef.IsIPv6 {
+						keyType = nftables.TypeIP6Addr
+					}
+					set, err = table.AddSet(setName, &nftables.SetOptions{
+						KeyType:    keyType,
+						HasTimeout: true,
+					})
+					if err != nil {
+						return errors.New("create set '" + setName + "' failed: " + err.Error())
+					}
+				} else {
+					return errors.New("get set '" + setName + "' failed: " + err.Error())
+				}
+			}
+			if set == nil {
+				return errors.New("can not create set '" + setName + "'")
+			}
+			if tableDef.IsIPv4 {
+				if setAction == "allow" {
+					this.allowIPv4Set = set
+				} else {
+					this.denyIPv4Set = set
+				}
+			} else if tableDef.IsIPv6 {
+				if setAction == "allow" {
+					this.allowIPv6Set = set
+				} else {
+					this.denyIPv6Set = set
+				}
+			}
+
+			// rule
+			var ruleName = []byte(setAction)
+			rule, err := chain.GetRuleWithUserData(ruleName)
+			if err != nil {
+				if nftables.IsNotFound(err) {
+					if tableDef.IsIPv4 {
+						if setAction == "allow" {
+							rule, err = chain.AddAcceptIPv4SetRule(setName, ruleName)
+						} else {
+							rule, err = chain.AddDropIPv4SetRule(setName, ruleName)
+						}
+					} else if tableDef.IsIPv6 {
+						if setAction == "allow" {
+							rule, err = chain.AddAcceptIPv6SetRule(setName, ruleName)
+						} else {
+							rule, err = chain.AddDropIPv6SetRule(setName, ruleName)
+						}
+					}
+					if err != nil {
+						return errors.New("add rule failed: " + err.Error())
+					}
+				} else {
+					return errors.New("get rule failed: " + err.Error())
+				}
+			}
+			if rule == nil {
+				return errors.New("can not create rule '" + string(ruleName) + "'")
+			}
+		}
+	}
+
+	this.isReady = true
+	nftablesIsReady = true
+	nftablesInstance = this
+
+	goman.New(func() {
+		for ipItem := range this.dropIPQueue {
+			switch ipItem.action {
+			case "drop":
+				err = this.DropSourceIP(ipItem.ip, ipItem.timeoutSeconds, false)
+				if err != nil {
+					remotelogs.Warn("NFTABLES", "drop ip '"+ipItem.ip+"' failed: "+err.Error())
+				}
+			}
+		}
+	})
+
+	// load firewalld
+	var firewalld = NewFirewalld()
+	if firewalld.IsReady() {
+		this.firewalld = firewalld
+	}
+
+	return nil
+}
+
+// Name 名称
+func (this *NFTablesFirewall) Name() string {
+	return "nftables"
+}
+
+// IsReady 是否已准备被调用
+func (this *NFTablesFirewall) IsReady() bool {
+	return this.isReady
+}
+
+// IsMock 是否为模拟
+func (this *NFTablesFirewall) IsMock() bool {
+	return false
+}
+
+// AllowPort 允许端口
+func (this *NFTablesFirewall) AllowPort(port int, protocol string) error {
+	if this.firewalld != nil {
+		return this.firewalld.AllowPort(port, protocol)
+	}
+	return nil
+}
+
+// RemovePort 删除端口
+func (this *NFTablesFirewall) RemovePort(port int, protocol string) error {
+	if this.firewalld != nil {
+		return this.firewalld.RemovePort(port, protocol)
+	}
+	return nil
+}
+
+// AllowSourceIP Allow把IP加入白名单
+func (this *NFTablesFirewall) AllowSourceIP(ip string) error {
+	var data = net.ParseIP(ip)
+	if data == nil {
+		return errors.New("invalid ip '" + ip + "'")
+	}
+
+	if strings.Contains(ip, ":") { // ipv6
+		if this.allowIPv6Set == nil {
+			return errors.New("ipv6 ip set is nil")
+		}
+		return this.allowIPv6Set.AddElement(data.To16(), nil)
+	}
+
+	// ipv4
+	if this.allowIPv4Set == nil {
+		return errors.New("ipv4 ip set is nil")
+	}
+	return this.allowIPv4Set.AddElement(data.To4(), nil)
+}
+
+// RejectSourceIP 拒绝某个源IP连接
+// we did not create set for drop ip, so we reuse DropSourceIP() method here
+func (this *NFTablesFirewall) RejectSourceIP(ip string, timeoutSeconds int) error {
+	return this.DropSourceIP(ip, timeoutSeconds, true)
+}
+
+// DropSourceIP 丢弃某个源IP数据
+func (this *NFTablesFirewall) DropSourceIP(ip string, timeoutSeconds int, async bool) error {
+	var data = net.ParseIP(ip)
+	if data == nil {
+		return errors.New("invalid ip '" + ip + "'")
+	}
+
+	// 尝试关闭连接
+	conns.SharedMap.CloseIPConns(ip)
+
+	// 避免短时间内重复添加
+	if async && this.checkLatestIP(ip) {
+		return nil
+	}
+
+	if async {
+		select {
+		case this.dropIPQueue <- &blockIPItem{
+			action:         "drop",
+			ip:             ip,
+			timeoutSeconds: timeoutSeconds,
+		}:
+		default:
+			return errors.New("drop ip queue is full")
+		}
+		return nil
+	}
+
+	// 再次尝试关闭连接
+	defer conns.SharedMap.CloseIPConns(ip)
+
+	if strings.Contains(ip, ":") { // ipv6
+		if this.denyIPv6Set == nil {
+			return errors.New("ipv6 ip set is nil")
+		}
+		return this.denyIPv6Set.AddElement(data.To16(), &nftables.ElementOptions{
+			Timeout: time.Duration(timeoutSeconds) * time.Second,
+		})
+	}
+
+	// ipv4
+	if this.denyIPv4Set == nil {
+		return errors.New("ipv4 ip set is nil")
+	}
+	return this.denyIPv4Set.AddElement(data.To4(), &nftables.ElementOptions{
+		Timeout: time.Duration(timeoutSeconds) * time.Second,
+	})
+}
+
+// RemoveSourceIP 删除某个源IP
+func (this *NFTablesFirewall) RemoveSourceIP(ip string) error {
+	var data = net.ParseIP(ip)
+	if data == nil {
+		return errors.New("invalid ip '" + ip + "'")
+	}
+
+	if strings.Contains(ip, ":") { // ipv6
+		if this.denyIPv6Set != nil {
+			err := this.denyIPv6Set.DeleteElement(data.To16())
+			if err != nil {
+				return err
+			}
+		}
+
+		if this.allowIPv6Set != nil {
+			err := this.allowIPv6Set.DeleteElement(data.To16())
+			if err != nil {
+				return err
+			}
+		}
+
+		return nil
+	}
+
+	// ipv4
+	if this.allowIPv4Set != nil {
+		err := this.denyIPv4Set.DeleteElement(data.To4())
+		if err != nil {
+			return err
+		}
+
+		err = this.allowIPv4Set.DeleteElement(data.To4())
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// 读取版本号
+func (this *NFTablesFirewall) readVersion(nftPath string) string {
+	var cmd = exec.Command(nftPath, "--version")
+	var output = &bytes.Buffer{}
+	cmd.Stdout = output
+	err := cmd.Run()
+	if err != nil {
+		return ""
+	}
+
+	var outputString = output.String()
+	var versionMatches = regexp.MustCompile(`nftables v([\d.]+)`).FindStringSubmatch(outputString)
+	if len(versionMatches) <= 1 {
+		return ""
+	}
+	return versionMatches[1]
+}
+
+// 检查是否在最近添加过
+func (this *NFTablesFirewall) existLatestIP(ip string) bool {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	var expiredIndex = -1
+	for index, ipTime := range this.latestIPTimes {
+		var pieces = strings.Split(ipTime, "@")
+		var oldIP = pieces[0]
+		var oldTimestamp = pieces[1]
+		if types.Int64(oldTimestamp) < time.Now().Unix()-3 /** 3秒外表示过期 **/ {
+			expiredIndex = index
+			continue
+		}
+		if oldIP == ip {
+			return true
+		}
+	}
+
+	if expiredIndex > -1 {
+		this.latestIPTimes = this.latestIPTimes[expiredIndex+1:]
+	}
+
+	this.latestIPTimes = append(this.latestIPTimes, ip+"@"+types.String(time.Now().Unix()))
+	const maxLen = 128
+	if len(this.latestIPTimes) > maxLen {
+		this.latestIPTimes = this.latestIPTimes[1:]
+	}
+
+	return false
+}