更改为v0.4.2

internal/caches/open_file_pool_test.go

@@ -11,7 +11,7 @@ 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)))
+	t.Log(pool.Put(caches.NewOpenFile(nil, nil, []byte{})))
 	t.Log(pool.Get())
 	t.Log(pool.Get())
 }

internal/caches/partial_ranges.go

@@ -0,0 +1,143 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"encoding/json"
+)
+
+// PartialRanges 内容分区范围定义
+type PartialRanges struct {
+	ranges [][2]int64
+}
+
+// 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 = [][2]int64{}
+	err := json.Unmarshal(data, &rs)
+	if err != nil {
+		return nil, err
+	}
+	var r = NewPartialRanges()
+	r.ranges = rs
+	return r, nil
+}
+
+// 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)
+}
+
+// Ranges 获取所有范围
+func (this *PartialRanges) Ranges() [][2]int64 {
+	return this.ranges
+}
+
+// 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 true
+	}
+
+	// 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
+}
+
+// AsJSON 转换为JSON
+func (this *PartialRanges) AsJSON() ([]byte, error) {
+	return json.Marshal(this.ranges)
+}
+
+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 +1,124 @@
+// 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())
+}
+
+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_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_file.go

@@ -24,8 +24,7 @@ type FileReader struct {
 	bodySize     int64
 	bodyOffset   int64
 
-	bodyBufLen int
+	isClosed bool
-	bodyBuf    []byte
 }
 
 func NewFileReader(fp *os.File) *FileReader {
@@ -33,6 +32,10 @@ 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
@@ -40,11 +43,13 @@ func (this *FileReader) Init() error {
 
 	isOk := false
 
-	defer func() {
+	if autoDiscard {
-		if !isOk {
+		defer func() {
-			_ = this.discard()
+			if !isOk {
-		}
+				_ = this.discard()
-	}()
+			}
+		}()
+	}
 
 	var buf = this.meta
 	if len(buf) == 0 {
@@ -79,13 +84,13 @@ func (this *FileReader) Init() error {
 	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)
-	this.bodyOffset = this.headerOffset + int64(headerSize)
 
 	// read header
 	if this.openFileCache != nil && len(this.header) == 0 {
@@ -181,10 +186,6 @@ 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
@@ -203,6 +204,12 @@ 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
 }
 
@@ -215,27 +222,7 @@ func (this *FileReader) ReadBody(buf []byte, callback ReaderFunc) error {
 		}
 	}()
 
-	offset := this.bodyOffset
+	var 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
-		}
-	}
 
 	// 开始读Body部分
 	_, err := this.fp.Seek(offset, io.SeekStart)
@@ -269,32 +256,9 @@ 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 {
+	if err != nil && err != io.EOF {
-		isOk = true
+		_ = this.discard()
 	}
 	return
 }
@@ -370,6 +334,11 @@ func (this *FileReader) ReadBodyRange(buf []byte, start int64, end int64, callba
 
 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 {
@@ -391,5 +360,6 @@ func (this *FileReader) readToBuff(fp *os.File, buf []byte) (ok bool, err error)
 
 func (this *FileReader) discard() error {
 	_ = this.fp.Close()
+	this.isClosed = true
 	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/storage_file.go

@@ -325,10 +325,11 @@ func (this *FileStorage) openReader(key string, allowMemory bool, useStale bool)
 }
 
 // OpenWriter 打开缓存文件等待写入
-func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Writer, error) {
+func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int, size int64, isPartial bool) (Writer, error) {
 	// 先尝试内存缓存
-	if this.memoryStorage != nil {
+	// 我们限定仅小文件优先存在内存中
-		writer, err := this.memoryStorage.OpenWriter(key, expiredAt, status)
+	if !isPartial && this.memoryStorage != nil && size > 0 && size < 32*1024*1024 {
+		writer, err := this.memoryStorage.OpenWriter(key, expiredAt, status, size, false)
 		if err == nil {
 			return writer, nil
 		}
@@ -360,13 +361,13 @@ func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Wr
 	if this.policy.MaxKeys > 0 && count > this.policy.MaxKeys {
 		return nil, NewCapacityError("write file cache failed: too many keys in cache storage")
 	}
-	capacityBytes := this.diskCapacityBytes()
+	var capacityBytes = this.diskCapacityBytes()
 	if capacityBytes > 0 && capacityBytes <= this.totalSize {
 		return nil, NewCapacityError("write file cache failed: over disk size, current total size: " + strconv.FormatInt(this.totalSize, 10) + " bytes, capacity: " + strconv.FormatInt(capacityBytes, 10))
 	}
 
-	hash := stringutil.Md5(key)
+	var hash = stringutil.Md5(key)
-	dir := this.cacheConfig.Dir + "/p" + strconv.FormatInt(this.policy.Id, 10) + "/" + hash[:2] + "/" + hash[2:4]
+	var dir = this.cacheConfig.Dir + "/p" + strconv.FormatInt(this.policy.Id, 10) + "/" + hash[:2] + "/" + hash[2:4]
 	_, err = os.Stat(dir)
 	if err != nil {
 		if !os.IsNotExist(err) {
@@ -386,6 +387,9 @@ func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Wr
 		return nil, ErrFileIsWriting
 	}
 	var tmpPath = cachePath + ".tmp"
+	if isPartial {
+		tmpPath = cachePath
+	}
 
 	// 先删除
 	err = this.list.Remove(hash)
@@ -420,70 +424,96 @@ func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Wr
 		return nil, ErrFileIsWriting
 	}
 
-	err = writer.Truncate(0)
+	// 是否已经有内容
-	if err != nil {
+	var isNewCreated = true
-		return nil, err
+	var partialBodyOffset int64
-	}
+	if isPartial {
-
+		partialFP, err := os.OpenFile(tmpPath, os.O_RDONLY, 0444)
-	// 写入过期时间
+		if err == nil {
-	bytes4 := make([]byte, 4)
+			var partialReader = NewFileReader(partialFP)
-	{
+			err = partialReader.InitAutoDiscard(false)
-		binary.BigEndian.PutUint32(bytes4, uint32(expiredAt))
+			if err == nil && partialReader.bodyOffset > 0 {
-		_, err = writer.Write(bytes4)
+				isNewCreated = false
-		if err != nil {
+				partialBodyOffset = partialReader.bodyOffset
-			return nil, err
+			}
+			_ = partialReader.Close()
 		}
 	}
 
-	// 写入状态码
+	if isNewCreated {
-	if status > 999 || status < 100 {
+		err = writer.Truncate(0)
-		status = 200
-	}
-	_, err = writer.WriteString(strconv.Itoa(status))
-	if err != nil {
-		return nil, err
-	}
-
-	// 写入URL长度
-	{
-		binary.BigEndian.PutUint32(bytes4, uint32(len(key)))
-		_, err = writer.Write(bytes4)
 		if err != nil {
 			return nil, err
 		}
-	}
 
-	// 写入Header Length
+		// 写入过期时间
-	{
+		bytes4 := make([]byte, 4)
-		binary.BigEndian.PutUint32(bytes4, uint32(0))
+		{
-		_, err = writer.Write(bytes4)
+			binary.BigEndian.PutUint32(bytes4, uint32(expiredAt))
+			_, err = writer.Write(bytes4)
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		// 写入状态码
+		if status > 999 || status < 100 {
+			status = 200
+		}
+		_, err = writer.WriteString(strconv.Itoa(status))
 		if err != nil {
 			return nil, err
 		}
-	}
 
-	// 写入Body Length
+		// 写入URL长度
-	{
+		{
-		b := make([]byte, SizeBodyLength)
+			binary.BigEndian.PutUint32(bytes4, uint32(len(key)))
-		binary.BigEndian.PutUint64(b, uint64(0))
+			_, err = writer.Write(bytes4)
-		_, err = writer.Write(b)
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		// 写入Header Length
+		{
+			binary.BigEndian.PutUint32(bytes4, uint32(0))
+			_, err = writer.Write(bytes4)
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		// 写入Body Length
+		{
+			b := make([]byte, SizeBodyLength)
+			binary.BigEndian.PutUint64(b, uint64(0))
+			_, err = writer.Write(b)
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		// 写入URL
+		_, err = writer.WriteString(key)
 		if err != nil {
 			return nil, err
 		}
 	}
 
-	// 写入URL
-	_, err = writer.WriteString(key)
-	if err != nil {
-		return nil, err
-	}
-
 	isOk = true
-	return NewFileWriter(writer, key, expiredAt, func() {
+	if isPartial {
-		sharedWritingFileKeyLocker.Lock()
+		return NewPartialFileWriter(writer, key, expiredAt, isNewCreated, isPartial, partialBodyOffset, func() {
-		delete(sharedWritingFileKeyMap, key)
+			sharedWritingFileKeyLocker.Lock()
-		sharedWritingFileKeyLocker.Unlock()
+			delete(sharedWritingFileKeyMap, key)
-	}), nil
+			sharedWritingFileKeyLocker.Unlock()
+		}), nil
+	} else {
+		return NewFileWriter(writer, key, expiredAt, func() {
+			sharedWritingFileKeyLocker.Lock()
+			delete(sharedWritingFileKeyMap, key)
+			sharedWritingFileKeyLocker.Unlock()
+		}), nil
+	}
 }
 
 // AddToList 添加到List
@@ -904,7 +934,7 @@ func (this *FileStorage) hotLoop() {
 				continue
 			}
 
-			writer, err := this.memoryStorage.openWriter(item.Key, item.ExpiresAt, item.Status, false)
+			writer, err := this.memoryStorage.openWriter(item.Key, item.ExpiresAt, item.Status, reader.BodySize(), false)
 			if err != nil {
 				if !CanIgnoreErr(err) {
 					remotelogs.Error("CACHE", "transfer hot item failed: "+err.Error())
@@ -929,6 +959,9 @@ func (this *FileStorage) hotLoop() {
 
 			err = reader.ReadBody(buf, func(n int) (goNext bool, err error) {
 				_, err = writer.Write(buf[:n])
+				if err == nil {
+					goNext = true
+				}
 				return
 			})
 			if err != nil {

internal/caches/storage_file_test.go

@@ -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, 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, 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([]byte("Hello, World"), 0)
+	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, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -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, 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, 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)
 	}

internal/caches/storage_interface.go

@@ -13,7 +13,7 @@ type StorageInterface interface {
 	OpenReader(key string, useStale 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)
+	OpenWriter(key string, expiredAt int64, status int, size int64, isPartial bool) (Writer, error)
 
 	// Delete 删除某个键值对应的缓存
 	Delete(key string) error

internal/caches/storage_memory.go

@@ -145,11 +145,15 @@ 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) {
+func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int, size int64, isPartial bool) (Writer, error) {
-	return this.openWriter(key, expiredAt, status, true)
+	// 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, true)
 }
 
-func (this *MemoryStorage) openWriter(key string, expiredAt int64, status int, isDirty bool) (Writer, error) {
+func (this *MemoryStorage) openWriter(key string, expiredAt int64, status int, size int64, isDirty bool) (Writer, error) {
 	this.locker.Lock()
 	defer this.locker.Unlock()
 
@@ -182,7 +186,10 @@ 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")
 	}
 
@@ -384,7 +391,7 @@ func (this *MemoryStorage) flushItem(key string) {
 		return
 	}
 
-	writer, err := this.parentStorage.OpenWriter(key, item.ExpiredAt, item.Status)
+	writer, err := this.parentStorage.OpenWriter(key, item.ExpiredAt, item.Status, -1, false)
 	if err != nil {
 		if !CanIgnoreErr(err) {
 			remotelogs.Error("CACHE", "flush items failed: open writer failed: "+err.Error())

internal/caches/storage_memory_test.go

@@ -15,7 +15,7 @@ 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, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -62,7 +62,7 @@ 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, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -103,7 +103,7 @@ func TestMemoryStorage_OpenReaderLock(t *testing.T) {
 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, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -111,7 +111,7 @@ 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, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -126,7 +126,7 @@ 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, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -139,7 +139,7 @@ func TestMemoryStorage_Stat(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -163,7 +163,7 @@ 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, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -175,7 +175,7 @@ func TestMemoryStorage_CleanAll(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -198,7 +198,7 @@ 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, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -210,7 +210,7 @@ func TestMemoryStorage_Purge(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -241,7 +241,7 @@ 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, false)
 		if err != nil {
 			t.Fatal(err)
 		}

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(data []byte, offset int64) 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"
@@ -65,6 +66,13 @@ func (this *FileWriter) Write(data []byte) (n int, err error) {
 	return
 }
 
+// WriteAt 在指定位置写入数据
+func (this *FileWriter) WriteAt(data []byte, offset int64) 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)

internal/caches/writer_memory.go

@@ -1,6 +1,7 @@
 package caches
 
 import (
+	"errors"
 	"github.com/cespare/xxhash"
 	"sync"
 	"time"
@@ -55,6 +56,13 @@ func (this *MemoryWriter) Write(data []byte) (n int, err error) {
 	return len(data), nil
 }
 
+// WriteAt 在指定位置写入数据
+func (this *MemoryWriter) WriteAt(b []byte, offset int64) 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 +1,173 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"encoding/binary"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"os"
+	"strings"
+	"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
+}
+
+func NewPartialFileWriter(rawWriter *os.File, key string, expiredAt int64, isNew bool, isPartial bool, bodyOffset int64, endFunc func()) *PartialFileWriter {
+	return &PartialFileWriter{
+		key:        key,
+		rawWriter:  rawWriter,
+		expiredAt:  expiredAt,
+		endFunc:    endFunc,
+		isNew:      isNew,
+		isPartial:  isPartial,
+		bodyOffset: bodyOffset,
+	}
+}
+
+// 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
+}
+
+// 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(data []byte, offset int64) error {
+	if this.bodyOffset == 0 {
+		this.bodyOffset = SizeMeta + int64(len(this.key)) + this.headerSize
+	}
+	_, err := this.rawWriter.WriteAt(data, this.bodyOffset+offset)
+	return err
+}
+
+// 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()
+	})
+
+	var path = this.rawWriter.Name()
+
+	if this.isNew {
+		err := this.WriteHeaderLength(types.Int(this.headerSize))
+		if err != nil {
+			_ = this.rawWriter.Close()
+			_ = os.Remove(path)
+			return err
+		}
+		err = this.WriteBodyLength(this.bodySize)
+		if err != nil {
+			_ = this.rawWriter.Close()
+			_ = os.Remove(path)
+			return err
+		}
+	}
+
+	err := this.rawWriter.Close()
+	if err != nil {
+		_ = os.Remove(path)
+	} else if !this.isPartial {
+		err = os.Rename(path, strings.Replace(path, ".tmp", "", 1))
+		if err != nil {
+			_ = os.Remove(path)
+		}
+	}
+
+	return err
+}
+
+// Discard 丢弃
+func (this *PartialFileWriter) Discard() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	_ = this.rawWriter.Close()
+
+	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
+}

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"
+	"io/ioutil"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestPartialFileWriter_SeekOffset(t *testing.T) {
+	var path = "/tmp/test@partial.cache"
+	_ = os.Remove(path)
+
+	var reader = func() {
+		data, err := ioutil.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 writer = caches.NewPartialFileWriter(fp, "test", time.Now().Unix()+86500, true, true, 0, func() {
+		t.Log("end")
+	})
+	_, err = writer.WriteHeader([]byte("header"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// 移动位置
+	err = writer.WriteAt([]byte("HELLO"), 100)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	reader()
+}

internal/compressions/reader_gzip_test.go

@@ -0,0 +1,68 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"bytes"
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"io"
+	"os"
+	"testing"
+)
+
+func TestGzipReader(t *testing.T) {
+	fp, err := os.Open("/Users/WorkSpace/EdgeProject/EdgeCache/p43/36/7e/367e02720713fe05b66573a1d69b4f0a.cache")
+	if err != nil {
+		// not fatal
+		t.Log(err)
+		return
+	}
+	defer func() {
+		_ = fp.Close()
+	}()
+
+	var buf = make([]byte, 32*1024)
+	cacheReader := caches.NewFileReader(fp)
+	err = cacheReader.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	var headerBuf = []byte{}
+	err = cacheReader.ReadHeader(buf, func(n int) (goNext bool, err error) {
+		headerBuf = append(headerBuf, buf[:n]...)
+		for {
+			nIndex := bytes.Index(headerBuf, []byte{'\n'})
+			if nIndex >= 0 {
+				row := headerBuf[:nIndex]
+				spaceIndex := bytes.Index(row, []byte{':'})
+				if spaceIndex <= 0 {
+					return false, errors.New("invalid header '" + string(row) + "'")
+				}
+
+				headerBuf = headerBuf[nIndex+1:]
+			} else {
+				break
+			}
+		}
+		return true, nil
+	})
+
+	reader, err := NewGzipReader(cacheReader)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for {
+		n, err := reader.Read(buf)
+		if err != nil {
+			if err != io.EOF {
+				t.Fatal(err)
+			} else {
+				break
+			}
+		}
+		t.Log(string(buf[:n]))
+		_ = n
+	}
+}

internal/const/const.go

@@ -1,7 +1,7 @@
 package teaconst
 
 const (
-	Version = "0.4.0"
+	Version = "0.4.2"
 
 	ProductName = "Edge Node"
 	ProcessName = "edge-node"

internal/nodes/api_stream.go

@@ -182,7 +182,7 @@ func (this *APIStream) handleWriteCache(message *pb.NodeStreamMessage) error {
 	}
 
 	expiredAt := time.Now().Unix() + msg.LifeSeconds
-	writer, err := storage.OpenWriter(msg.Key, expiredAt, 200)
+	writer, err := storage.OpenWriter(msg.Key, expiredAt, 200, int64(len(msg.Value)), false)
 	if err != nil {
 		this.replyFail(message.RequestId, "prepare writing failed: "+err.Error())
 		return err
@@ -462,7 +462,7 @@ func (this *APIStream) handlePreheatCache(message *pb.NodeStreamMessage) error {
 			}
 
 			expiredAt := time.Now().Unix() + 8600
-			writer, err := storage.OpenWriter(key, expiredAt, 200) // TODO 可以设置缓存过期时间
+			writer, err := storage.OpenWriter(key, expiredAt, 200, resp.ContentLength, false) // TODO 可以设置缓存过期时间
 			if err != nil {
 				locker.Lock()
 				errorMessages = append(errorMessages, "open cache writer failed: "+key+": "+err.Error())

internal/nodes/http_request.go

@@ -315,12 +315,12 @@ func (this *HTTPRequest) doEnd() {
 	// TODO 增加Header统计，考虑从Conn中读取
 	if this.ReqServer != nil {
 		if this.isCached {
-			stats.SharedTrafficStatManager.Add(this.ReqServer.Id, this.ReqHost, this.writer.sentBodyBytes, this.writer.sentBodyBytes, 1, 1, 0, 0, this.ReqServer.ShouldCheckTrafficLimit(), this.ReqServer.PlanId())
+			stats.SharedTrafficStatManager.Add(this.ReqServer.Id, this.ReqHost, this.writer.SentBodyBytes(), this.writer.SentBodyBytes(), 1, 1, 0, 0, this.ReqServer.ShouldCheckTrafficLimit(), this.ReqServer.PlanId())
 		} else {
 			if this.isAttack {
-				stats.SharedTrafficStatManager.Add(this.ReqServer.Id, this.ReqHost, this.writer.sentBodyBytes, 0, 1, 0, 1, this.writer.sentBodyBytes, this.ReqServer.ShouldCheckTrafficLimit(), this.ReqServer.PlanId())
+				stats.SharedTrafficStatManager.Add(this.ReqServer.Id, this.ReqHost, this.writer.SentBodyBytes(), 0, 1, 0, 1, this.writer.SentBodyBytes(), this.ReqServer.ShouldCheckTrafficLimit(), this.ReqServer.PlanId())
 			} else {
-				stats.SharedTrafficStatManager.Add(this.ReqServer.Id, this.ReqHost, this.writer.sentBodyBytes, 0, 1, 0, 0, 0, this.ReqServer.ShouldCheckTrafficLimit(), this.ReqServer.PlanId())
+				stats.SharedTrafficStatManager.Add(this.ReqServer.Id, this.ReqHost, this.writer.SentBodyBytes(), 0, 1, 0, 0, 0, this.ReqServer.ShouldCheckTrafficLimit(), this.ReqServer.PlanId())
 			}
 		}
 	}

internal/nodes/http_request_cache.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
 	"github.com/TeaOSLab/EdgeNode/internal/caches"
-	"github.com/TeaOSLab/EdgeNode/internal/compressions"
 	"github.com/TeaOSLab/EdgeNode/internal/goman"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/rpc"
@@ -22,7 +21,7 @@ import (
 func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	this.cacheCanTryStale = false
 
-	cachePolicy := this.ReqServer.HTTPCachePolicy
+	var cachePolicy = this.ReqServer.HTTPCachePolicy
 	if cachePolicy == nil || !cachePolicy.IsOn {
 		return
 	}
@@ -162,11 +161,15 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	var err error
 
 	// 是否优先检查WebP
+	var isWebP = false
 	if this.web.WebP != nil &&
 		this.web.WebP.IsOn &&
 		this.web.WebP.MatchRequest(filepath.Ext(this.Path()), this.Format) &&
 		this.web.WebP.MatchAccept(this.requestHeader("Accept")) {
 		reader, _ = storage.OpenReader(key+webpSuffix, useStale)
+		if reader != nil {
+			isWebP = true
+		}
 	}
 
 	// 检查正常的文件
@@ -184,13 +187,16 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 			}
 
 			if !this.canIgnore(err) {
-				remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
+				remotelogs.Warn("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: open cache failed: "+err.Error())
 			}
 			return
 		}
 	}
+
 	defer func() {
-		_ = reader.Close()
+		if !this.writer.DelayRead() {
+			_ = reader.Close()
+		}
 	}()
 
 	if useStale {
@@ -231,7 +237,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	})
 	if err != nil {
 		if !this.canIgnore(err) {
-			remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
+			remotelogs.Warn("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: read header failed: "+err.Error())
 		}
 		return
 	}
@@ -246,6 +252,8 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 		} else {
 			this.writer.Header().Set("X-Cache", "HIT, "+refType+", "+reader.TypeName())
 		}
+	} else {
+		this.writer.Header().Del("X-Cache")
 	}
 	if this.web.Cache.AddAgeHeader {
 		this.writer.Header().Set("Age", age)
@@ -257,7 +265,11 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	var eTag = ""
 	var lastModifiedAt = reader.LastModified()
 	if lastModifiedAt > 0 {
-		eTag = "\"" + strconv.FormatInt(lastModifiedAt, 10) + "\""
+		if isWebP {
+			eTag = "\"" + strconv.FormatInt(lastModifiedAt, 10) + "_webp" + "\""
+		} else {
+			eTag = "\"" + strconv.FormatInt(lastModifiedAt, 10) + "\""
+		}
 		respHeader.Del("Etag")
 		respHeader["ETag"] = []string{eTag}
 	}
@@ -357,7 +369,6 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 			}
 		}
 
-		respHeader := this.writer.Header()
 		if len(rangeSet) == 1 {
 			respHeader.Set("Content-Range", "bytes "+strconv.FormatInt(rangeSet[0][0], 10)+"-"+strconv.FormatInt(rangeSet[0][1], 10)+"/"+strconv.FormatInt(reader.BodySize(), 10))
 			respHeader.Set("Content-Length", strconv.FormatInt(rangeSet[0][1]-rangeSet[0][0]+1, 10))
@@ -379,7 +390,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 					return true
 				}
 				if !this.canIgnore(err) {
-					remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
+					remotelogs.Warn("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: "+err.Error())
 				}
 				return
 			}
@@ -425,7 +436,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 				})
 				if err != nil {
 					if !this.canIgnore(err) {
-						remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
+						remotelogs.Warn("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: "+err.Error())
 					}
 					return true
 				}
@@ -439,25 +450,11 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 				return true
 			}
 		} else { // 没有Range
-			var body io.Reader = reader
+			var resp = &http.Response{Body: reader}
-			var contentEncoding = this.writer.Header().Get("Content-Encoding")
+			this.writer.Prepare(resp, reader.BodySize(), reader.Status(), false)
-			if len(contentEncoding) > 0 && !httpAcceptEncoding(this.RawReq.Header.Get("Accept-Encoding"), contentEncoding) {
-				decompressReader, err := compressions.NewReader(body, contentEncoding)
-				if err == nil {
-					body = decompressReader
-					defer func() {
-						_ = decompressReader.Close()
-					}()
-
-					this.writer.Header().Del("Content-Encoding")
-					this.writer.Header().Del("Content-Length")
-				}
-			}
-
-			this.writer.PrepareCompression(reader.BodySize())
 			this.writer.WriteHeader(reader.Status())
 
-			_, err = io.CopyBuffer(this.writer, body, buf)
+			_, err = io.CopyBuffer(this.writer, resp.Body, buf)
 			if err == io.EOF {
 				err = nil
 			}
@@ -465,7 +462,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 				this.varMapping["cache.status"] = "MISS"
 
 				if !this.canIgnore(err) {
-					remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
+					remotelogs.Warn("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: read body failed: "+err.Error())
 				}
 				return
 			}

internal/nodes/http_request_fastcgi.go

@@ -190,7 +190,7 @@ func (this *HTTPRequest) doFastcgi() (shouldStop bool) {
 	this.processResponseHeaders(resp.StatusCode)
 
 	// 准备
-	this.writer.Prepare(resp.ContentLength, resp.StatusCode)
+	this.writer.Prepare(resp, resp.ContentLength, resp.StatusCode, true)
 
 	// 设置响应代码
 	this.writer.WriteHeader(resp.StatusCode)

internal/nodes/http_request_host_redirect.go

@@ -73,6 +73,13 @@ func (this *HTTPRequest) doHostRedirect() (blocked bool) {
 				return false
 			}
 
+			if u.KeepArgs {
+				var qIndex = strings.Index(this.uri, "?")
+				if qIndex >= 0 {
+					afterURL += this.uri[qIndex:]
+				}
+			}
+
 			if u.Status <= 0 {
 				this.processResponseHeaders(http.StatusTemporaryRedirect)
 				http.Redirect(this.RawWriter, this.RawReq, afterURL, http.StatusTemporaryRedirect)
@@ -88,12 +95,20 @@ func (this *HTTPRequest) doHostRedirect() (blocked bool) {
 					return false
 				}
 
+				var afterURL = u.AfterURL
+				if u.KeepArgs {
+					var qIndex = strings.Index(this.uri, "?")
+					if qIndex >= 0 {
+						afterURL += this.uri[qIndex:]
+					}
+				}
+
 				if u.Status <= 0 {
 					this.processResponseHeaders(http.StatusTemporaryRedirect)
-					http.Redirect(this.RawWriter, this.RawReq, u.AfterURL, http.StatusTemporaryRedirect)
+					http.Redirect(this.RawWriter, this.RawReq, afterURL, http.StatusTemporaryRedirect)
 				} else {
 					this.processResponseHeaders(u.Status)
-					http.Redirect(this.RawWriter, this.RawReq, u.AfterURL, u.Status)
+					http.Redirect(this.RawWriter, this.RawReq, afterURL, u.Status)
 				}
 				return true
 			}

internal/nodes/http_request_page.go

@@ -61,11 +61,11 @@ func (this *HTTPRequest) doPage(status int) (shouldStop bool) {
 					if page.NewStatus > 0 {
 						// 自定义响应Headers
 						this.processResponseHeaders(page.NewStatus)
-						this.writer.Prepare(stat.Size(), page.NewStatus)
+						this.writer.Prepare(nil, stat.Size(), page.NewStatus, true)
 						this.writer.WriteHeader(page.NewStatus)
 					} else {
 						this.processResponseHeaders(status)
-						this.writer.Prepare(stat.Size(), status)
+						this.writer.Prepare(nil, stat.Size(), status, true)
 						this.writer.WriteHeader(status)
 					}
 					buf := utils.BytePool1k.Get()
@@ -100,11 +100,11 @@ func (this *HTTPRequest) doPage(status int) (shouldStop bool) {
 				if page.NewStatus > 0 {
 					// 自定义响应Headers
 					this.processResponseHeaders(page.NewStatus)
-					this.writer.Prepare(int64(len(content)), page.NewStatus)
+					this.writer.Prepare(nil, int64(len(content)), page.NewStatus, true)
 					this.writer.WriteHeader(page.NewStatus)
 				} else {
 					this.processResponseHeaders(status)
-					this.writer.Prepare(int64(len(content)), status)
+					this.writer.Prepare(nil, int64(len(content)), status, true)
 					this.writer.WriteHeader(status)
 				}
 

internal/nodes/http_request_reverse_proxy.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
-	"github.com/TeaOSLab/EdgeNode/internal/compressions"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
 	"io"
@@ -262,33 +261,15 @@ func (this *HTTPRequest) doReverseProxy() {
 		}
 	}
 
-	// 解压
-	if !resp.Uncompressed {
-		var contentEncoding = resp.Header.Get("Content-Encoding")
-		if len(contentEncoding) > 0 && !httpAcceptEncoding(this.RawReq.Header.Get("Accept-Encoding"), contentEncoding) {
-			reader, err := compressions.NewReader(resp.Body, contentEncoding)
-			if err == nil {
-				var body = resp.Body
-				defer func() {
-					_ = body.Close()
-				}()
-
-				resp.Body = reader
-				resp.Header.Del("Content-Encoding")
-				resp.Header.Del("Content-Length")
-			}
-		}
-	}
-
 	// 响应Header
 	this.writer.AddHeaders(resp.Header)
 	this.processResponseHeaders(resp.StatusCode)
 
 	// 是否需要刷新
-	shouldAutoFlush := this.reverseProxy.AutoFlush || this.RawReq.Header.Get("Accept") == "text/event-stream"
+	var shouldAutoFlush = this.reverseProxy.AutoFlush || this.RawReq.Header.Get("Accept") == "text/event-stream"
 
 	// 准备
-	delayHeaders := this.writer.Prepare(resp.ContentLength, resp.StatusCode)
+	var delayHeaders = this.writer.Prepare(resp, resp.ContentLength, resp.StatusCode, true)
 
 	// 设置响应代码
 	if !delayHeaders {

internal/nodes/http_request_root.go

@@ -302,7 +302,7 @@ func (this *HTTPRequest) doRoot() (isBreak bool) {
 		this.cacheRef = nil // 不支持缓存
 	}
 
-	this.writer.Prepare(fileSize, http.StatusOK)
+	this.writer.Prepare(nil, fileSize, http.StatusOK, true)
 
 	pool := this.bytePool(fileSize)
 	buf := pool.Get()

internal/nodes/http_request_url.go

@@ -54,9 +54,9 @@ func (this *HTTPRequest) doURL(method string, url string, host string, statusCod
 	}
 	this.writer.AddHeaders(resp.Header)
 	if statusCode <= 0 {
-		this.writer.Prepare(resp.ContentLength, resp.StatusCode)
+		this.writer.Prepare(resp, resp.ContentLength, resp.StatusCode, true)
 	} else {
-		this.writer.Prepare(resp.ContentLength, statusCode)
+		this.writer.Prepare(resp, resp.ContentLength, statusCode, true)
 	}
 
 	// 设置响应代码

internal/nodes/http_writer_rate.go

@@ -1,102 +0,0 @@
-// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
-
-package nodes
-
-import (
-	"bufio"
-	"github.com/iwind/TeaGo/types"
-	"net"
-	"net/http"
-	"time"
-)
-
-// HTTPRateWriter 限速写入
-type HTTPRateWriter struct {
-	parentWriter http.ResponseWriter
-
-	rateBytes int
-	lastBytes int
-	timeCost  time.Duration
-}
-
-func NewHTTPRateWriter(writer http.ResponseWriter, rateBytes int64) http.ResponseWriter {
-	return &HTTPRateWriter{
-		parentWriter: writer,
-		rateBytes:    types.Int(rateBytes),
-	}
-}
-
-func (this *HTTPRateWriter) Header() http.Header {
-	return this.parentWriter.Header()
-}
-
-func (this *HTTPRateWriter) Write(data []byte) (int, error) {
-	if len(data) == 0 {
-		return 0, nil
-	}
-
-	var left = this.rateBytes - this.lastBytes
-
-	if left <= 0 {
-		if this.timeCost > 0 && this.timeCost < 1*time.Second {
-			time.Sleep(1*time.Second - this.timeCost)
-		}
-
-		this.lastBytes = 0
-		this.timeCost = 0
-		return this.Write(data)
-	}
-
-	var n = len(data)
-
-	// n <= left
-	if n <= left {
-		this.lastBytes += n
-
-		var before = time.Now()
-		defer func() {
-			this.timeCost += time.Since(before)
-		}()
-		return this.parentWriter.Write(data)
-	}
-
-	// n > left
-	var before = time.Now()
-	result, err := this.parentWriter.Write(data[:left])
-	this.timeCost += time.Since(before)
-
-	if err != nil {
-		return result, err
-	}
-	this.lastBytes += left
-
-	return this.Write(data[left:])
-}
-
-func (this *HTTPRateWriter) WriteHeader(statusCode int) {
-	this.parentWriter.WriteHeader(statusCode)
-}
-
-// Hijack Hijack
-func (this *HTTPRateWriter) Hijack() (conn net.Conn, buf *bufio.ReadWriter, err error) {
-	if this.parentWriter == nil {
-		return
-	}
-	hijack, ok := this.parentWriter.(http.Hijacker)
-	if ok {
-		return hijack.Hijack()
-	}
-	return
-}
-
-// Flush Flush
-func (this *HTTPRateWriter) Flush() {
-	if this.parentWriter == nil {
-		return
-	}
-	flusher, ok := this.parentWriter.(http.Flusher)
-	if ok {
-		flusher.Flush()
-		return
-	}
-}

internal/nodes/node.go

@@ -56,13 +56,16 @@ type Node struct {
 	maxCPU     int32
 	maxThreads int
 	timezone   string
+
+	updatingServerMap map[int64]*serverconfigs.ServerConfig
 }
 
 func NewNode() *Node {
 	return &Node{
-		sock:       gosock.NewTmpSock(teaconst.ProcessName),
+		sock:              gosock.NewTmpSock(teaconst.ProcessName),
-		maxThreads: -1,
+		maxThreads:        -1,
-		maxCPU:     -1,
+		maxCPU:            -1,
+		updatingServerMap: map[int64]*serverconfigs.ServerConfig{},
 	}
 }
 
@@ -264,7 +267,7 @@ func (this *Node) loop() error {
 	defer tr.End()
 
 	// 检查api.yaml是否存在
-	apiConfigFile := Tea.ConfigFile("api.yaml")
+	var apiConfigFile = Tea.ConfigFile("api.yaml")
 	_, err := os.Stat(apiConfigFile)
 	if err != nil {
 		return nil
@@ -275,7 +278,7 @@ func (this *Node) loop() error {
 		return errors.New("create rpc client failed: " + err.Error())
 	}
 
-	nodeCtx := rpcClient.Context()
+	var nodeCtx = rpcClient.Context()
 	tasksResp, err := rpcClient.NodeTaskRPC().FindNodeTasks(nodeCtx, &pb.FindNodeTasksRequest{})
 	if err != nil {
 		return errors.New("read node tasks failed: " + err.Error())
@@ -295,11 +298,15 @@ func (this *Node) loop() error {
 				return err
 			}
 		case "configChanged":
-			if !task.IsPrimary {
+			if task.ServerId > 0 {
-				// 我们等等主节点配置准备完毕
+				err = this.syncServerConfig(task.ServerId)
-				time.Sleep(2 * time.Second)
+			} else {
+				if !task.IsPrimary {
+					// 我们等等主节点配置准备完毕
+					time.Sleep(2 * time.Second)
+				}
+				err = this.syncConfig(task.Version)
 			}
-			err := this.syncConfig(task.Version)
 			if err != nil {
 				_, err = rpcClient.NodeTaskRPC().ReportNodeTaskDone(nodeCtx, &pb.ReportNodeTaskDoneRequest{
 					NodeTaskId: task.Id,
@@ -316,6 +323,7 @@ func (this *Node) loop() error {
 			if err != nil {
 				return err
 			}
+
 		case "nodeVersionChanged":
 			goman.New(func() {
 				sharedUpgradeManager.Start()
@@ -419,22 +427,8 @@ func (this *Node) syncConfig(taskVersion int64) error {
 		remotelogs.Println("NODE", "loading config ...")
 	}
 
-	nodeconfigs.ResetNodeConfig(nodeConfig)
-	caches.SharedManager.MaxDiskCapacity = nodeConfig.MaxCacheDiskCapacity
-	caches.SharedManager.MaxMemoryCapacity = nodeConfig.MaxCacheMemoryCapacity
-	if len(nodeConfig.HTTPCachePolicies) > 0 {
-		caches.SharedManager.UpdatePolicies(nodeConfig.HTTPCachePolicies)
-	} else {
-		caches.SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{})
-	}
-
-	sharedWAFManager.UpdatePolicies(nodeConfig.FindAllFirewallPolicies())
-	iplibrary.SharedActionManager.UpdateActions(nodeConfig.FirewallActions)
-	sharedNodeConfig = nodeConfig
 	this.onReload(nodeConfig)
 
-	metrics.SharedManager.Update(nodeConfig.MetricItems)
-
 	// 发送事件
 	events.Notify(events.EventReload)
 
@@ -447,30 +441,96 @@ func (this *Node) syncConfig(taskVersion int64) error {
 	return nil
 }
 
+// 读取单个服务配置
+func (this *Node) syncServerConfig(serverId int64) error {
+	rpcClient, err := rpc.SharedRPC()
+	if err != nil {
+		return err
+	}
+	resp, err := rpcClient.ServerRPC().ComposeServerConfig(rpcClient.Context(), &pb.ComposeServerConfigRequest{ServerId: serverId})
+	if err != nil {
+		return err
+	}
+
+	this.locker.Lock()
+	defer this.locker.Unlock()
+	if len(resp.ServerConfigJSON) == 0 {
+		this.updatingServerMap[serverId] = nil
+	} else {
+		var config = &serverconfigs.ServerConfig{}
+		err = json.Unmarshal(resp.ServerConfigJSON, config)
+		if err != nil {
+			return err
+		}
+		this.updatingServerMap[serverId] = config
+	}
+	return nil
+}
+
 // 启动同步计时器
 func (this *Node) startSyncTimer() {
 	// TODO 这个时间间隔可以自行设置
-	ticker := time.NewTicker(60 * time.Second)
+	var taskTicker = time.NewTicker(60 * time.Second)
+	var serverChangeTicker = time.NewTicker(5 * time.Second)
+
 	events.OnKey(events.EventQuit, this, func() {
 		remotelogs.Println("NODE", "quit sync timer")
-		ticker.Stop()
+		taskTicker.Stop()
+		serverChangeTicker.Stop()
 	})
 	goman.New(func() {
 		for {
 			select {
-			case <-ticker.C:
+			case <-taskTicker.C: // 定期执行
 				err := this.loop()
 				if err != nil {
 					remotelogs.Error("NODE", "sync config error: "+err.Error())
 					continue
 				}
-			case <-nodeTaskNotify:
+			case <-serverChangeTicker.C: // 服务变化
+				this.locker.Lock()
+				if len(this.updatingServerMap) > 0 {
+					var updatingServerMap = this.updatingServerMap
+					this.updatingServerMap = map[int64]*serverconfigs.ServerConfig{}
+					newNodeConfig, err := nodeconfigs.CloneNodeConfig(sharedNodeConfig)
+					if err != nil {
+						remotelogs.Error("NODE", "apply server config error: "+err.Error())
+						continue
+					}
+					for serverId, serverConfig := range updatingServerMap {
+						if serverConfig != nil {
+							newNodeConfig.AddServer(serverConfig)
+						} else {
+							newNodeConfig.RemoveServer(serverId)
+						}
+					}
+
+					err, serverErrors := newNodeConfig.Init()
+					if err != nil {
+						remotelogs.Error("NODE", "apply server config error: "+err.Error())
+						continue
+					}
+					if len(serverErrors) > 0 {
+						for _, serverErr := range serverErrors {
+							remotelogs.ServerError(serverErr.Id, "NODE", serverErr.Message, nodeconfigs.NodeLogTypeServerConfigInitFailed, maps.Map{})
+						}
+					}
+
+					this.onReload(newNodeConfig)
+
+					err = sharedListenerManager.Start(newNodeConfig)
+					if err != nil {
+						remotelogs.Error("NODE", "apply server config error: "+err.Error())
+					}
+				}
+				this.locker.Unlock()
+			case <-nodeTaskNotify: // 有新的更新任务
 				err := this.loop()
 				if err != nil {
 					remotelogs.Error("NODE", "sync config error: "+err.Error())
 					continue
 				}
-			case <-nodeConfigChangedNotify:
+			case <-nodeConfigChangedNotify: // 节点变化通知
 				err := this.syncConfig(0)
 				if err != nil {
 					remotelogs.Error("NODE", "sync config error: "+err.Error())
@@ -701,6 +761,25 @@ func (this *Node) listenSock() error {
 
 // 重载配置调用
 func (this *Node) onReload(config *nodeconfigs.NodeConfig) {
+	nodeconfigs.ResetNodeConfig(config)
+	sharedNodeConfig = config
+
+	// 缓存策略
+	caches.SharedManager.MaxDiskCapacity = config.MaxCacheDiskCapacity
+	caches.SharedManager.MaxMemoryCapacity = config.MaxCacheMemoryCapacity
+	if len(config.HTTPCachePolicies) > 0 {
+		caches.SharedManager.UpdatePolicies(config.HTTPCachePolicies)
+	} else {
+		caches.SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{})
+	}
+
+	// WAF策略
+	sharedWAFManager.UpdatePolicies(config.FindAllFirewallPolicies())
+	iplibrary.SharedActionManager.UpdateActions(config.FirewallActions)
+
+	// 统计指标
+	metrics.SharedManager.Update(config.MetricItems)
+
 	// max cpu
 	if config.MaxCPU != this.maxCPU {
 		if config.MaxCPU > 0 && config.MaxCPU < int32(runtime.NumCPU()) {

internal/utils/readers/bytes_counter_reader.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package readers
+
+import "io"
+
+type BytesCounterReader struct {
+	rawReader io.Reader
+	count     int64
+}
+
+func NewBytesCounterReader(rawReader io.Reader) *BytesCounterReader {
+	return &BytesCounterReader{
+		rawReader: rawReader,
+	}
+}
+
+func (this *BytesCounterReader) Read(p []byte) (n int, err error) {
+	n, err = this.rawReader.Read(p)
+	this.count += int64(n)
+	return
+}
+
+func (this *BytesCounterReader) TotalBytes() int64 {
+	return this.count
+}

internal/utils/readers/filter_reader.go

@@ -0,0 +1,34 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package readers
+
+import "io"
+
+type FilterFunc = func(p []byte, err error) error
+
+type FilterReader struct {
+	rawReader io.Reader
+	filters   []FilterFunc
+}
+
+func NewFilterReader(rawReader io.Reader) *FilterReader {
+	return &FilterReader{
+		rawReader: rawReader,
+	}
+}
+
+func (this *FilterReader) Add(filter FilterFunc) {
+	this.filters = append(this.filters, filter)
+}
+
+func (this *FilterReader) Read(p []byte) (n int, err error) {
+	n, err = this.rawReader.Read(p)
+	for _, filter := range this.filters {
+		filterErr := filter(p[:n], err)
+		if filterErr != nil {
+			err = filterErr
+			return
+		}
+	}
+	return
+}

internal/utils/readers/filter_reader_test.go

@@ -0,0 +1,41 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package readers_test
+
+import (
+	"bytes"
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/readers"
+	"testing"
+)
+
+func TestNewFilterReader(t *testing.T) {
+	var reader = readers.NewFilterReader(bytes.NewBufferString("0123456789"))
+	reader.Add(func(p []byte, err error) error {
+		t.Log("filter1:", string(p), err)
+		return nil
+	})
+	reader.Add(func(p []byte, err error) error {
+		t.Log("filter2:", string(p), err)
+		if string(p) == "345" {
+			return errors.New("end")
+		}
+		return nil
+	})
+	reader.Add(func(p []byte, err error) error {
+		t.Log("filter3:", string(p), err)
+		return nil
+	})
+
+	var buf = make([]byte, 3)
+	for {
+		n, err := reader.Read(buf)
+		if n > 0 {
+			t.Log(string(buf[:n]))
+		}
+		if err != nil {
+			t.Log(err)
+			break
+		}
+	}
+}

internal/utils/readers/tee_reader.go

@@ -0,0 +1,52 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package readers
+
+import (
+	"io"
+)
+
+type TeeReader struct {
+	r io.Reader
+	w io.Writer
+
+	onFail func(err error)
+	onEOF  func()
+}
+
+func NewTeeReader(reader io.Reader, writer io.Writer) *TeeReader {
+	return &TeeReader{
+		r: reader,
+		w: writer,
+	}
+}
+
+func (this *TeeReader) Read(p []byte) (n int, err error) {
+	n, err = this.r.Read(p)
+	if n > 0 {
+		_, wErr := this.w.Write(p[:n])
+		if err == nil && wErr != nil {
+			err = wErr
+		}
+	}
+	if err != nil {
+		if err == io.EOF {
+			if this.onEOF != nil {
+				this.onEOF()
+			}
+		} else {
+			if this.onFail != nil {
+				this.onFail(err)
+			}
+		}
+	}
+	return
+}
+
+func (this *TeeReader) OnFail(onFail func(err error)) {
+	this.onFail = onFail
+}
+
+func (this *TeeReader) OnEOF(onEOF func()) {
+	this.onEOF = onEOF
+}

internal/utils/readers/tee_reader_closer.go

@@ -0,0 +1,58 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package readers
+
+import "io"
+
+type TeeReaderCloser struct {
+	r io.Reader
+	w io.Writer
+
+	onFail func(err error)
+	onEOF  func()
+}
+
+func NewTeeReaderCloser(reader io.Reader, writer io.Writer) *TeeReaderCloser {
+	return &TeeReaderCloser{
+		r: reader,
+		w: writer,
+	}
+}
+
+func (this *TeeReaderCloser) Read(p []byte) (n int, err error) {
+	n, err = this.r.Read(p)
+	if n > 0 {
+		_, wErr := this.w.Write(p[:n])
+		if err == nil && wErr != nil {
+			err = wErr
+		}
+	}
+	if err != nil {
+		if err == io.EOF {
+			if this.onEOF != nil {
+				this.onEOF()
+			}
+		} else {
+			if this.onFail != nil {
+				this.onFail(err)
+			}
+		}
+	}
+	return
+}
+
+func (this *TeeReaderCloser) Close() error {
+	r, ok := this.r.(io.Closer)
+	if ok {
+		return r.Close()
+	}
+	return nil
+}
+
+func (this *TeeReaderCloser) OnFail(onFail func(err error)) {
+	this.onFail = onFail
+}
+
+func (this *TeeReaderCloser) OnEOF(onEOF func()) {
+	this.onEOF = onEOF
+}

internal/utils/writers/bytes_counter_writer.go

@@ -0,0 +1,28 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package writers
+
+import "io"
+
+type BytesCounterWriter struct {
+	writer io.Writer
+	count  int64
+}
+
+func NewBytesCounterWriter(rawWriter io.Writer) *BytesCounterWriter {
+	return &BytesCounterWriter{writer: rawWriter}
+}
+
+func (this *BytesCounterWriter) Write(p []byte) (n int, err error) {
+	n, err = this.writer.Write(p)
+	this.count += int64(n)
+	return
+}
+
+func (this *BytesCounterWriter) Close() error {
+	return nil
+}
+
+func (this *BytesCounterWriter) TotalBytes() int64 {
+	return this.count
+}

internal/utils/writers/rate_limit_writer.go

@@ -0,0 +1,87 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package writers
+
+import (
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"time"
+)
+
+// RateLimitWriter 限速写入
+type RateLimitWriter struct {
+	rawWriter io.WriteCloser
+
+	rateBytes int
+
+	written int
+	before  time.Time
+}
+
+func NewRateLimitWriter(rawWriter io.WriteCloser, rateBytes int64) io.WriteCloser {
+	return &RateLimitWriter{
+		rawWriter: rawWriter,
+		rateBytes: types.Int(rateBytes),
+		before:    time.Now(),
+	}
+}
+
+func (this *RateLimitWriter) Write(p []byte) (n int, err error) {
+	if this.rateBytes <= 0 {
+		return this.write(p)
+	}
+
+	var size = len(p)
+	if size == 0 {
+		return 0, nil
+	}
+
+	if size <= this.rateBytes {
+		return this.write(p)
+	}
+
+	for {
+		size = len(p)
+
+		var limit = this.rateBytes
+		if limit > size {
+			limit = size
+		}
+		n1, wErr := this.write(p[:limit])
+		n += n1
+		if wErr != nil {
+			return n, wErr
+		}
+
+		if size > limit {
+			p = p[limit:]
+		} else {
+			break
+		}
+	}
+
+	return
+}
+
+func (this *RateLimitWriter) Close() error {
+	return this.rawWriter.Close()
+}
+
+func (this *RateLimitWriter) write(p []byte) (n int, err error) {
+	n, err = this.rawWriter.Write(p)
+
+	if err == nil {
+		this.written += n
+
+		if this.written >= this.rateBytes {
+			var duration = 1*time.Second - time.Now().Sub(this.before)
+			if duration > 0 {
+				time.Sleep(duration)
+			}
+			this.before = time.Now()
+			this.written = 0
+		}
+	}
+
+	return
+}

internal/utils/writers/rate_limit_writer_test.go

@@ -0,0 +1,41 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package writers
+
+import (
+	"sync"
+	"testing"
+	"time"
+)
+
+func TestSleep(t *testing.T) {
+	var count = 2000
+	var wg = sync.WaitGroup{}
+	wg.Add(count)
+	var before = time.Now()
+	for i := 0; i < count; i++ {
+		go func() {
+			defer wg.Done()
+			time.Sleep(1 * time.Second)
+		}()
+	}
+	wg.Wait()
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+}
+
+func TestTimeout(t *testing.T) {
+	var count = 2000
+	var wg = sync.WaitGroup{}
+	wg.Add(count)
+	var before = time.Now()
+	for i := 0; i < count; i++ {
+		go func() {
+			defer wg.Done()
+
+			var timeout = time.NewTimer(1 * time.Second)
+			<-timeout.C
+		}()
+	}
+	wg.Wait()
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+}

internal/utils/writers/tee_writer_closer.go

@@ -0,0 +1,51 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package writers
+
+import "io"
+
+type TeeWriterCloser struct {
+	primaryW   io.WriteCloser
+	secondaryW io.WriteCloser
+
+	onFail func(err error)
+}
+
+func NewTeeWriterCloser(primaryW io.WriteCloser, secondaryW io.WriteCloser) *TeeWriterCloser {
+	return &TeeWriterCloser{
+		primaryW:   primaryW,
+		secondaryW: secondaryW,
+	}
+}
+
+func (this *TeeWriterCloser) Write(p []byte) (n int, err error) {
+	{
+		n, err = this.primaryW.Write(p)
+
+		if err != nil {
+			if this.onFail != nil {
+				this.onFail(err)
+			}
+		}
+	}
+
+	{
+		_, err2 := this.secondaryW.Write(p)
+		if err2 != nil {
+			if this.onFail != nil {
+				this.onFail(err2)
+			}
+		}
+	}
+
+	return
+}
+
+func (this *TeeWriterCloser) Close() error {
+	// 这里不关闭secondary
+	return this.primaryW.Close()
+}
+
+func (this *TeeWriterCloser) OnFail(onFail func(err error)) {
+	this.onFail = onFail
+}

internal/waf/rule_group.go

@@ -1,7 +1,9 @@
 package waf
 
 import (
+	"errors"
 	"github.com/TeaOSLab/EdgeNode/internal/waf/requests"
+	"github.com/iwind/TeaGo/types"
 )
 
 // rule group
@@ -30,7 +32,7 @@ func (this *RuleGroup) Init(waf *WAF) error {
 		for _, set := range this.RuleSets {
 			err := set.Init(waf)
 			if err != nil {
-				return err
+				return errors.New("init set '" + types.String(set.Id) + "' failed: " + err.Error())
 			}
 		}
 	}

internal/waf/rule_set.go

@@ -1,12 +1,14 @@
 package waf
 
 import (
+	"errors"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/firewallconfigs"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
 	"github.com/TeaOSLab/EdgeNode/internal/waf/requests"
 	"github.com/iwind/TeaGo/lists"
 	"github.com/iwind/TeaGo/maps"
+	"github.com/iwind/TeaGo/types"
 	"net/http"
 	"sort"
 )
@@ -47,7 +49,7 @@ func (this *RuleSet) Init(waf *WAF) error {
 		for _, rule := range this.Rules {
 			err := rule.Init()
 			if err != nil {
-				return err
+				return errors.New("init rule '" + rule.Param + " " + rule.Operator + " " + types.String(rule.Value) + "' failed: " + err.Error())
 			}
 		}
 	}

internal/waf/waf.go

@@ -8,6 +8,7 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/waf/requests"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/files"
+	"github.com/iwind/TeaGo/types"
 	"gopkg.in/yaml.v3"
 	"io/ioutil"
 	"net/http"
@@ -89,7 +90,7 @@ func (this *WAF) Init() (resultErrors []error) {
 			err := group.Init(this)
 			if err != nil {
 				// 这里我们不阻止其他规则正常加入
-				resultErrors = append(resultErrors, err)
+				resultErrors = append(resultErrors, errors.New("init group '"+types.String(group.Id)+"' failed: "+err.Error()))
 			}
 		}
 	}