avif support is almost complete

config.go

@@ -8,7 +8,7 @@ type Config struct {
 	Host         string   `json:"HOST"`
 	Port         string   `json:"PORT"`
 	ImgPath      string   `json:"IMG_PATH"`
-	Quality      string   `json:"QUALITY"`
+	Quality      float32  `json:"QUALITY,string"`
 	AllowedTypes []string `json:"ALLOWED_TYPES"`
 	ExhaustPath  string   `json:"EXHAUST_PATH"`
 }

encoder.go

@@ -4,28 +4,71 @@ import (
 	"bytes"
 	"errors"
 	"image"
-	"image/gif"
 	"image/jpeg"
 	"image/png"
 	"io/ioutil"
+	"os"
 	"path"
+	"path/filepath"
 	"strings"
 
 	log "github.com/sirupsen/logrus"
 
+	"github.com/Kagami/go-avif"
 	"github.com/chai2010/webp"
 	"golang.org/x/image/bmp"
 )
 
-func webpEncoder(p1, p2 string, quality float32) (err error) {
+func convertFilter(raw, avifPath, webpPath string, c chan int) {
-	// if convert fails, return error; success nil
+	// all absolute paths
-	log.Debugf("target: %s with quality of %f", path.Base(p1), quality)
-	var buf bytes.Buffer
-	var img image.Image
 
-	data, err := ioutil.ReadFile(p1)
+	if !imageExists(avifPath) {
+		convertImage(raw, avifPath, "avif")
+	}
+	if !imageExists(webpPath) {
+		convertImage(raw, webpPath, "webp")
+	}
+
+	if c != nil {
+		c <- 1
+	}
+}
+
+func convertImage(raw, optimized, itype string) {
+	// we don't have abc.jpg.png1582558990.webp
+	// delete the old pic and convert a new one.
+	// optimized: /home/webp_server/exhaust/path/to/tsuki.jpg.1582558990.webp
+	// we'll delete file starts with /home/webp_server/exhaust/path/to/tsuki.jpg.ts.itype
+
+	s := strings.Split(path.Base(optimized), ".")
+	pattern := path.Join(path.Dir(optimized), s[0]+"."+s[1]+".*."+s[len(s)-1])
+
+	matches, err := filepath.Glob(pattern)
 	if err != nil {
-		return
+		log.Error(err.Error())
+	} else {
+		for _, p := range matches {
+			_ = os.Remove(p)
+		}
+	}
+
+	//we need to create dir first
+	err = os.MkdirAll(path.Dir(optimized), 0755)
+	//q, _ := strconv.ParseFloat(config.Quality, 32)
+
+	switch itype {
+	case "webp":
+		webpEncoder(raw, optimized, config.Quality)
+	case "avif":
+		avifEncoder(raw, optimized, config.Quality)
+	}
+
+}
+
+func readRawImage(imgPath string) (img image.Image, err error) {
+	data, err := ioutil.ReadFile(imgPath)
+	if err != nil {
+		log.Errorln(err)
 	}
 
 	contentType := getFileContentType(data[:512])
@@ -35,28 +78,64 @@ func webpEncoder(p1, p2 string, quality float32) (err error) {
 		img, _ = png.Decode(bytes.NewReader(data))
 	} else if strings.Contains(contentType, "bmp") {
 		img, _ = bmp.Decode(bytes.NewReader(data))
-	} else if strings.Contains(contentType, "gif") {
-		// TODO: need to support animated webp
-		log.Warn("Gif support is not perfect!")
-		img, _ = gif.Decode(bytes.NewReader(data))
 	}
 
 	if img == nil {
-		msg := "image file " + path.Base(p1) + " is corrupted or not supported"
+		errinfo := "image file " + path.Base(imgPath) + " is corrupted or not supported"
-		log.Debug(msg)
+		log.Errorln(errinfo)
-		return errors.New(msg)
+		return nil, errors.New(errinfo)
 	}
 
-	if err = webp.Encode(&buf, img, &webp.Options{Lossless: false, Quality: quality}); err != nil {
+	return img, nil
-		log.Error(err)
+}
-		return
+
-	}
+func avifEncoder(p1, p2 string, quality float32) {
-	if err = ioutil.WriteFile(p2, buf.Bytes(), 0644); err != nil {
+	var img image.Image
-		log.Error(err)
+	dst, err := os.Create(p2)
-		return
+	if err != nil {
-	}
+		log.Fatalf("Can't create destination file: %v", err)
-
+	}
-	log.Info("Save to " + p2 + " ok!\n")
+	img, err = readRawImage(p1)
-
+	if err != nil {
-	return nil
+		return
+	}
+
+	var avifQuality = int((100 - quality) / 100 * avif.MaxQuality)
+	err = avif.Encode(dst, img, &avif.Options{Quality: avifQuality})
+	if err != nil {
+		log.Fatalf("Can't encode source image: %v", err)
+	}
+
+	convertLog("AVIF", p1, p2, quality)
+}
+
+func webpEncoder(p1, p2 string, quality float32) {
+	// if convert fails, return error; success nil
+	var buf bytes.Buffer
+	var img image.Image
+
+	img, err := readRawImage(p1)
+	if err != nil {
+		return
+	}
+
+	if err := webp.Encode(&buf, img, &webp.Options{Lossless: false, Quality: quality}); err != nil {
+		log.Error(err)
+		return
+	}
+
+	if err := ioutil.WriteFile(p2, buf.Bytes(), 0644); err != nil {
+		log.Error(err)
+		return
+	}
+
+	convertLog("WebP", p1, p2, quality)
+
+}
+
+func convertLog(itype, p1 string, p2 string, quality float32) {
+	oldf, _ := os.Stat(p1)
+	newf, _ := os.Stat(p2)
+	log.Infof("%s@%.2f%%: %s->%s %d->%d %.2f%% deflated", itype, quality,
+		p1, p2, oldf.Size(), newf.Size(), float32(newf.Size())/float32(oldf.Size())*100)
 }

go.mod

@@ -3,11 +3,15 @@ module webp_server_go
 go 1.15
 
 require (
+	github.com/Kagami/go-avif v0.1.0
 	github.com/chai2010/webp v1.1.0
 	github.com/gofiber/fiber/v2 v2.4.0
+	github.com/h2non/filetype v1.1.3
+	github.com/schollz/progressbar/v3 v3.8.3
 	github.com/sirupsen/logrus v1.6.0
 	github.com/staktrace/go-update v0.0.0-20210525161054-fc019945f9a2
 	github.com/stretchr/testify v1.3.0
+	github.com/valyala/fasthttp v1.18.0
 	golang.org/x/image v0.0.0-20200119044424-58c23975cae1
 )
 

go.sum

@@ -1,14 +1,28 @@
+github.com/Kagami/go-avif v0.1.0 h1:8GHAGLxCdFfhpd4Zg8j1EqO7rtcQNenxIDerC/uu68w=
+github.com/Kagami/go-avif v0.1.0/go.mod h1:OPmPqzNdQq3+sXm0HqaUJQ9W/4k+Elbc3RSfJUemDKA=
 github.com/andybalholm/brotli v1.0.0 h1:7UCwP93aiSfvWpapti8g88vVVGp2qqtGyePsSuDafo4=
 github.com/andybalholm/brotli v1.0.0/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/h2non/filetype v1.1.3 h1:FKkx9QbD7HR/zjK1Ia5XiBsq9zdLi5Kf3zGyFTAFkGg=
+github.com/h2non/filetype v1.1.3/go.mod h1:319b3zT68BvV+WRj7cwy856M2ehB3HqNOt6sy1HndBY=
+github.com/k0kubun/go-ansi v0.0.0-20180517002512-3bf9e2903213/go.mod h1:vNUNkEQ1e29fT/6vq2aBdFsgNPmy8qMdSay1npru+Sw=
 github.com/klauspost/compress v1.10.7 h1:7rix8v8GpI3ZBb0nSozFRgbtXKv+hOe+qfEpZqybrAg=
 github.com/klauspost/compress v1.10.7/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
+github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
+github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/schollz/progressbar/v3 v3.8.3 h1:FnLGl3ewlDUP+YdSwveXBaXs053Mem/du+wr7XSYKl8=
+github.com/schollz/progressbar/v3 v3.8.3/go.mod h1:pWnVCjSBZsT2X3nx9HfRdnCDrpbevliMeoEVhStwHko=
 github.com/sirupsen/logrus v1.6.0 h1:UBcNElsrwanuuMsnGSlYmtmgbb23qDR5dG+6X6Oo89I=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
 github.com/staktrace/go-update v0.0.0-20210525161054-fc019945f9a2 h1:kyTDvRL8TyTHOx0aK1PKMPVfkI7rCLDC1nrKF7SYOBc=
@@ -29,16 +43,26 @@ github.com/webp-sh/webp v1.2.0 h1:WiAR1M4Cz50Ehv0vP8VaBZwuTqBgLxcGMaBV23zLVDA=
 github.com/webp-sh/webp v1.2.0/go.mod h1:DWmBXPtpA/zfTgEgWxAlsER3B7nXFvDtCi1YY+K5N9w=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 h1:HWj/xjIHfjYU5nVXpTM0s39J9CbLn7Cc5a7IC5rwsMQ=
+golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/image v0.0.0-20200119044424-58c23975cae1 h1:5h3ngYt7+vXCDZCup/HkCQgW5XwmSvR/nA2JmJ0RErg=
 golang.org/x/image v0.0.0-20200119044424-58c23975cae1/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20201016165138-7b1cca2348c0/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201210223839-7e3030f88018 h1:XKi8B/gRBuTZN1vU9gFsLMm6zVz5FSCDzm8JYACnjy8=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201210223839-7e3030f88018/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210910150752-751e447fb3d0 h1:xrCZDmdtoloIiooiA9q0OQb9r8HejIHYoHGhGCe1pGg=
+golang.org/x/sys v0.0.0-20210910150752-751e447fb3d0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b h1:9zKuko04nR4gjZ4+DNjHqRlAJqbJETHwiNKDqTfOjfE=
+golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

helper.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"bytes"
 	"fmt"
+	"github.com/valyala/fasthttp"
 	"hash/crc32"
 	"io"
 	"io/ioutil"
@@ -11,26 +13,32 @@ import (
 	"path/filepath"
 	"strconv"
 
-	"strings"
+	"github.com/h2non/filetype"
-
 	log "github.com/sirupsen/logrus"
+	"strings"
 )
 
-func chanErr(ccc chan int) {
+func avifMatcher(buf []byte) bool {
-	if ccc != nil {
+	// 0000001C 66747970 6D696631 00000000 6D696631 61766966 6D696166 000000F4
-		ccc <- 1
+	return len(buf) > 1 && bytes.Equal(buf[:28], []byte{
-	}
+		0x0, 0x0, 0x0, 0x1c,
+		0x66, 0x74, 0x79, 0x70,
+		0x6d, 0x69, 0x66, 0x31,
+		0x0, 0x0, 0x0, 0x0,
+		0x6d, 0x69, 0x66, 0x31,
+		0x61, 0x76, 0x69, 0x66,
+		0x6d, 0x69, 0x61, 0x66,
+	})
 }
-
 func getFileContentType(buffer []byte) string {
-	// Use the net/http package's handy DectectContentType function. Always returns a valid
+	var avifType = filetype.NewType("avif", "image/avif")
-	// content-type by returning "application/octet-stream" if no others seemed to match.
+	filetype.AddMatcher(avifType, avifMatcher)
-	contentType := http.DetectContentType(buffer)
+	kind, _ := filetype.Match(buffer)
-	return contentType
+	return kind.MIME.Value
 }
 
-func fileCount(dir string) int {
+func fileCount(dir string) int64 {
-	count := 0
+	var count int64 = 0
 	_ = filepath.Walk(dir,
 		func(path string, info os.FileInfo, err error) error {
 			if err != nil {
@@ -106,22 +114,23 @@ func cleanProxyCache(cacheImagePath string) {
 	}
 }
 
-func genWebpAbs(RawImagePath string, ExhaustPath string, ImgFilename string, reqURI string) (string, string) {
+func genOptimizedAbs(rawImagePath string, exhaustPath string, imageName string, reqURI string) (string, string) {
 	// get file mod time
-	STAT, err := os.Stat(RawImagePath)
+	STAT, err := os.Stat(rawImagePath)
 	if err != nil {
 		log.Error(err.Error())
 		return "", ""
 	}
 	ModifiedTime := STAT.ModTime().Unix()
 	// webpFilename: abc.jpg.png -> abc.jpg.png.1582558990.webp
-	WebpFilename := fmt.Sprintf("%s.%d.webp", ImgFilename, ModifiedTime)
+	webpFilename := fmt.Sprintf("%s.%d.webp", imageName, ModifiedTime)
-	cwd, _ := os.Getwd()
+	avifFilename := fmt.Sprintf("%s.%d.avif", imageName, ModifiedTime)
 
 	// /home/webp_server/exhaust/path/to/tsuki.jpg.1582558990.webp
 	// Custom Exhaust: /path/to/exhaust/web_path/web_to/tsuki.jpg.1582558990.webp
-	WebpAbsolutePath := path.Clean(path.Join(ExhaustPath, path.Dir(reqURI), WebpFilename))
+	webpAbsolutePath := path.Clean(path.Join(exhaustPath, path.Dir(reqURI), webpFilename))
-	return cwd, WebpAbsolutePath
+	avifAbsolutePath := path.Clean(path.Join(exhaustPath, path.Dir(reqURI), avifFilename))
+	return avifAbsolutePath, webpAbsolutePath
 }
 
 func genEtag(ImgAbsPath string) string {
@@ -136,64 +145,60 @@ func genEtag(ImgAbsPath string) string {
 	return fmt.Sprintf(`W/"%d-%08X"`, len(data), crc)
 }
 
-func getCompressionRate(RawImagePath string, webpAbsPath string) string {
+func getCompressionRate(RawImagePath string, optimizedImg string) string {
 	originFileInfo, err := os.Stat(RawImagePath)
 	if err != nil {
 		log.Warnf("fail to get raw image %v", err)
 		return ""
 	}
-	webpFileInfo, err := os.Stat(webpAbsPath)
+	optimizedFileInfo, err := os.Stat(optimizedImg)
 	if err != nil {
 		log.Warnf("fail to get webp image %v", err)
 		return ""
 	}
-	compressionRate := float64(webpFileInfo.Size()) / float64(originFileInfo.Size())
+	compressionRate := float64(optimizedFileInfo.Size()) / float64(originFileInfo.Size())
-	log.Debugf("The compress rate is %d/%d=%.2f", originFileInfo.Size(), webpFileInfo.Size(), compressionRate)
+	log.Debugf("The compress rate is %d/%d=%.2f", originFileInfo.Size(), optimizedFileInfo.Size(), compressionRate)
 	return fmt.Sprintf(`%.2f`, compressionRate)
 }
 
-func goOrigin(header, ua string) bool {
+func guessSupportedFormat(header *fasthttp.RequestHeader) []string {
-	// We'll first check accept headers, if accept headers is false, we'll then go to UA part
+	var supported = map[string]bool{
-	if headerOrigin(header) && uaOrigin(ua) {
+		"raw":  true,
-		return true
+		"webp": false,
-	} else {
+		"avif": false}
-		return false
-	}
-}
 
-func uaOrigin(ua string) bool {
+	var ua = string(header.Peek("user-agent"))
-	// iOS 14 and iPadOS 14 supports webp, the identification token is iPhone OS 14_2_1 and CPU OS 14_2
+	var accept = strings.ToLower(string(header.Peek("accept")))
-	// for more information, please check test case
+	log.Debugf("%s\t%s\n", ua, accept)
-	if strings.Contains(ua, "iPhone OS 14") || strings.Contains(ua, "CPU OS 14") {
+
-		// this is iOS 14/iPadOS 14
+	if strings.Contains(accept, "image/webp") {
-		return false
+		supported["webp"] = true
-	} else if strings.Contains(ua, "Firefox") || strings.Contains(ua, "Chrome") {
+	}
-		// Chrome or firefox on macOS Windows
+	if strings.Contains(accept, "image/avif") {
+		supported["avif"] = true
+	}
+
+	// chrome on iOS will not send valid image accept header
+	if strings.Contains(ua, "iPhone OS 14") || strings.Contains(ua, "CPU OS 14") ||
+		strings.Contains(ua, "iPhone OS 15") || strings.Contains(ua, "CPU OS 15") {
+		supported["webp"] = true
 	} else if strings.Contains(ua, "Android") || strings.Contains(ua, "Linux") {
-		// on Android and Linux
+		supported["webp"] = true
-	} else if strings.Contains(ua, "FxiOS") || strings.Contains(ua, "CriOS") {
-		//firefox and Chrome on iOS
-		return true
-	} else {
-		return true
 	}
-	return false
+
+	var accepted []string
+	for k, v := range supported {
+		if v {
+			accepted = append(accepted, k)
+		}
+	}
+	return accepted
+
 }
 
-func headerOrigin(header string) bool {
+func chooseProxy(proxyRawSize string, optimizedAbs string) bool {
-	// Webkit is really weird especially on iOS, it doesn't even send out effective accept headers.
-	// Head to test case if you want to know more
-	if strings.Contains(header, "image/webp") {
-		return false
-	} else {
-		// go to origin
-		return true
-	}
-}
-
-func chooseProxy(proxyRawSize string, webpAbsPath string) bool {
 	var proxyRaw, _ = strconv.Atoi(proxyRawSize)
-	webp, _ := ioutil.ReadFile(webpAbsPath)
+	webp, _ := ioutil.ReadFile(optimizedAbs)
 	if len(webp) > proxyRaw {
 		return true
 	} else {
@@ -201,12 +206,16 @@ func chooseProxy(proxyRawSize string, webpAbsPath string) bool {
 	}
 }
 
-func chooseLocalSmallerFile(rawImageAbs, webpAbsPath string) string {
+func findSmallestFiles(files []string) string {
-	raw, _ := ioutil.ReadFile(rawImageAbs)
+	// walk files
-	webp, _ := ioutil.ReadFile(webpAbsPath)
+	var small int64
-	if len(webp) > len(raw) {
+	var final string
-		return rawImageAbs
+	for _, f := range files {
-	} else {
+		stat, _ := os.Stat(f)
-		return webpAbsPath
+		if stat.Size() < small || small == 0 {
+			small = stat.Size()
+			final = f
+		}
 	}
+	return final
 }

helper_test.go

@@ -43,7 +43,7 @@ func TestImageExists(t *testing.T) {
 }
 
 func TestGenWebpAbs(t *testing.T) {
-	cwd, cooked := genWebpAbs("./pics/webp_server.png", "/tmp",
+	cwd, cooked := genOptimizedAbs("./pics/webp_server.png", "/tmp",
 		"test", "a")
 	if !strings.Contains(cwd, "webp_server_go") {
 		t.Logf("Result: [%v], Expected: [%v]", cwd, "webp_server_go")

prefetch.go

@@ -2,49 +2,49 @@ package main
 
 import (
 	"fmt"
+	"github.com/schollz/progressbar/v3"
+	log "github.com/sirupsen/logrus"
 	"os"
 	"path"
 	"path/filepath"
-	"strconv"
 	"strings"
 	"time"
-
-	log "github.com/sirupsen/logrus"
 )
 
-func prefetchImages(confImgPath string, ExhaustPath string, QUALITY string) {
+func prefetchImages(confImgPath string, ExhaustPath string) {
-	var sTime = time.Now()
 	// maximum ongoing prefetch is depending on your core of CPU
+	var sTime = time.Now()
 	log.Infof("Prefetching using %d cores", jobs)
 	var finishChan = make(chan int, jobs)
 	for i := 0; i < jobs; i++ {
-		finishChan <- 0
+		finishChan <- 1
 	}
 
 	//prefetch, recursive through the dir
 	all := fileCount(confImgPath)
-	count := 0
+	var bar = progressbar.Default(all, "Prefetching...")
+	//count := 0
 	err := filepath.Walk(confImgPath,
 		func(picAbsPath string, info os.FileInfo, err error) error {
 			if err != nil {
 				return err
 			}
+			if info.IsDir() {
+				return nil
+			}
 			// RawImagePath string, ImgFilename string, reqURI string
 			proposedURI := strings.Replace(picAbsPath, confImgPath, "", 1)
-			_, p2 := genWebpAbs(picAbsPath, ExhaustPath, info.Name(), proposedURI)
+			avif, webp := genOptimizedAbs(picAbsPath, ExhaustPath, info.Name(), proposedURI)
-			q, _ := strconv.ParseFloat(QUALITY, 32)
+			_ = os.MkdirAll(path.Dir(avif), 0755)
-			_ = os.MkdirAll(path.Dir(p2), 0755)
+			go convertFilter(picAbsPath, avif, webp, finishChan)
-			go webpEncoder(picAbsPath, p2, float32(q))
+			_ = bar.Add(<-finishChan)
-			count += <-finishChan
-			//progress bar
-			_, _ = fmt.Fprintf(os.Stdout, "[Webp Server started] - convert in progress: %d/%d\r", count, all)
 			return nil
 		})
+
 	if err != nil {
-		log.Debug(err)
+		log.Errorln(err)
 	}
 	elapsed := time.Since(sTime)
-	_, _ = fmt.Fprintf(os.Stdout, "Prefetch completeY(^_^)Y\n\n")
+	_, _ = fmt.Fprintf(os.Stdout, "Prefetch completeY(^_^)Y in %s\n\n", elapsed)
-	_, _ = fmt.Fprintf(os.Stdout, "convert %d file in %s (^_^)Y\n\n", count, elapsed)
 
 }

router.go

@@ -5,12 +5,11 @@ import (
 	"fmt"
 	"github.com/gofiber/fiber/v2"
 	log "github.com/sirupsen/logrus"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"os"
 	"path"
-	"path/filepath"
-	"strconv"
 	"strings"
 )
 
@@ -24,14 +23,12 @@ func convert(c *fiber.Ctx) error {
 		rawImageAbs = path.Join(config.ImgPath, reqURI) // /home/xxx/mypic/123.jpg
 	}
 	var imgFilename = path.Base(reqURI) // pure filename, 123.jpg
-	var finalFile string                // We'll only need one c.sendFile()
+	log.Debugf("Incoming connection from %s %s", c.IP(), imgFilename)
-	var ua = c.Get("User-Agent")
-	var accept = c.Get("accept")
-	log.Debugf("Incoming connection from %s@%s with %s", ua, c.IP(), imgFilename)
 
-	needOrigin := goOrigin(accept, ua)
+	goodFormat := guessSupportedFormat(&c.Request().Header)
-	if needOrigin {
+
-		log.Debugf("A Safari/IE/whatever user has arrived...%s", ua)
+	// old browser only
+	if len(goodFormat) == 1 {
 		c.Set("ETag", genEtag(rawImageAbs))
 		if proxyMode {
 			localRemoteTmpPath := remoteRaw + reqURI
@@ -42,7 +39,6 @@ func convert(c *fiber.Ctx) error {
 		}
 	}
 
-	// check ext
 	var allowed = false
 	for _, ext := range config.AllowedTypes {
 		haystack := strings.ToLower(imgFilename)
@@ -81,45 +77,27 @@ func convert(c *fiber.Ctx) error {
 		return errors.New(msg)
 	}
 
-	_, webpAbsPath := genWebpAbs(rawImageAbs, config.ExhaustPath, imgFilename, reqURI)
+	// generate with timestamp to make sure files are update-to-date
+	avifAbs, webpAbs := genOptimizedAbs(rawImageAbs, config.ExhaustPath, imgFilename, reqURI)
+	convertFilter(rawImageAbs, avifAbs, webpAbs, nil)
 
-	if imageExists(webpAbsPath) {
+	var availableFiles = []string{rawImageAbs}
-		finalFile = webpAbsPath
+	for _, v := range goodFormat {
-	} else {
+		if "avif" == v {
-		// we don't have abc.jpg.png1582558990.webp
+			availableFiles = append(availableFiles, avifAbs)
-		// delete the old pic and convert a new one.
-		// /home/webp_server/exhaust/path/to/tsuki.jpg.1582558990.webp
-		destHalfFile := path.Clean(path.Join(webpAbsPath, path.Dir(reqURI), imgFilename))
-		matches, err := filepath.Glob(destHalfFile + "*")
-		if err != nil {
-			log.Error(err.Error())
-		} else {
-			// /home/webp_server/exhaust/path/to/tsuki.jpg.1582558100.webp <- older ones will be removed
-			// /home/webp_server/exhaust/path/to/tsuki.jpg.1582558990.webp <- keep the latest one
-			for _, p := range matches {
-				if strings.Compare(destHalfFile, p) != 0 {
-					_ = os.Remove(p)
-				}
-			}
 		}
-
+		if "webp" == v {
-		//for webp, we need to create dir first
+			availableFiles = append(availableFiles, webpAbs)
-		err = os.MkdirAll(path.Dir(webpAbsPath), 0755)
-		q, _ := strconv.ParseFloat(config.Quality, 32)
-		err = webpEncoder(rawImageAbs, webpAbsPath, float32(q))
-
-		if err != nil {
-			log.Error(err)
-			_ = c.SendStatus(400)
-			_ = c.Send([]byte("Bad file. " + err.Error()))
-			return err
 		}
-		finalFile = webpAbsPath
 	}
+
+	var finalFile string
+	finalFile = findSmallestFiles(availableFiles)
 	etag := genEtag(finalFile)
 	c.Set("ETag", etag)
-	c.Set("X-Compression-Rate", getCompressionRate(rawImageAbs, webpAbsPath))
+	c.Set("X-Compression-Rate", getCompressionRate(rawImageAbs, finalFile))
-	finalFile = chooseLocalSmallerFile(rawImageAbs, webpAbsPath)
+	buf, _ := ioutil.ReadFile(finalFile)
+	c.Set("content-type", getFileContentType(buf))
 	return c.SendFile(finalFile)
 
 }
@@ -141,12 +119,8 @@ func proxyHandler(c *fiber.Ctx, reqURI string) error {
 			cleanProxyCache(config.ExhaustPath + reqURI + "*")
 			localRawImagePath := remoteRaw + reqURI
 			_ = fetchRemoteImage(localRawImagePath, realRemoteAddr)
-			q, _ := strconv.ParseFloat(config.Quality, 32)
 			_ = os.MkdirAll(path.Dir(localEtagWebPPath), 0755)
-			err := webpEncoder(localRawImagePath, localEtagWebPPath, float32(q))
+			webpEncoder(localRawImagePath, localEtagWebPPath, config.Quality)
-			if err != nil {
-				log.Warning(err)
-			}
 			chooseProxy(remoteLength, localEtagWebPPath)
 			return c.SendFile(localEtagWebPPath)
 		}

webp-server.go

@@ -41,7 +41,7 @@ func deferInit() {
 		FullTimestamp:             true,
 		TimestampFormat:           "2006-01-02 15:04:05",
 		CallerPrettyfier: func(f *runtime.Frame) (string, string) {
-			return fmt.Sprintf("[%s()]", f.Function), ""
+			return fmt.Sprintf("[%d:%s()]", f.Line, f.Function), ""
 		},
 	}
 	log.SetFormatter(Formatter)
@@ -99,7 +99,7 @@ Develop by WebP Server team. https://github.com/webp-sh`, version)
 	switchProxyMode()
 
 	if prefetch {
-		go prefetchImages(config.ImgPath, config.ExhaustPath, config.Quality)
+		go prefetchImages(config.ImgPath, config.ExhaustPath)
 	}
 
 	app := fiber.New(fiber.Config{