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feat: support parse png icon from pe file #111

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08ca877
feat: support parse png icon from pe file
Feb 12, 2025
4e5376d
fix: support bip file
Feb 26, 2025
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5 changes: 4 additions & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,9 @@ go 1.15

require (
github.com/edsrzf/mmap-go v1.1.0
github.com/gabriel-vasile/mimetype v1.4.8
github.com/mat/besticon v3.12.0+incompatible
github.com/secDre4mer/pkcs7 v0.0.0-20240322103146-665324a4461d
golang.org/x/text v0.7.0
golang.org/x/image v0.24.0 // indirect
golang.org/x/text v0.22.0
)
54 changes: 52 additions & 2 deletions go.sum
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Original file line number Diff line number Diff line change
@@ -1,31 +1,81 @@
github.com/edsrzf/mmap-go v1.1.0 h1:6EUwBLQ/Mcr1EYLE4Tn1VdW1A4ckqCQWZBw8Hr0kjpQ=
github.com/edsrzf/mmap-go v1.1.0/go.mod h1:19H/e8pUPLicwkyNgOykDXkJ9F0MHE+Z52B8EIth78Q=
github.com/gabriel-vasile/mimetype v1.4.8 h1:FfZ3gj38NjllZIeJAmMhr+qKL8Wu+nOoI3GqacKw1NM=
github.com/gabriel-vasile/mimetype v1.4.8/go.mod h1:ByKUIKGjh1ODkGM1asKUbQZOLGrPjydw3hYPU2YU9t8=
github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/mat/besticon v3.12.0+incompatible h1:1KTD6wisfjfnX+fk9Kx/6VEZL+MAW1LhCkL9Q47H9Bg=
github.com/mat/besticon v3.12.0+incompatible/go.mod h1:mA1auQYHt6CW5e7L9HJLmqVQC8SzNk2gVwouO0AbiEU=
github.com/secDre4mer/pkcs7 v0.0.0-20240322103146-665324a4461d h1:RQqyEogx5J6wPdoxqL132b100j8KjcVHO1c0KLRoIhc=
github.com/secDre4mer/pkcs7 v0.0.0-20240322103146-665324a4461d/go.mod h1:PegD7EVqlN88z7TpCqH92hHP+GBpfomGCCnw1PFtNOA=
github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
golang.org/x/image v0.24.0 h1:AN7zRgVsbvmTfNyqIbbOraYL8mSwcKncEj8ofjgzcMQ=
golang.org/x/image v0.24.0/go.mod h1:4b/ITuLfqYq1hqZcjofwctIhi7sZh2WaCjvsBNjjya8=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f h1:v4INt8xihDGvnrfjMDVXGxw9wrfxYyCjk0KbXjhR55s=
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM=
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/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
159 changes: 159 additions & 0 deletions icon.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,159 @@
package pe

import (
"bytes"
"encoding/binary"
"errors"
"fmt"
"image"
_ "image/jpeg"
"image/png"

"github.com/gabriel-vasile/mimetype"
)

// ParseIconToPng 解析icon，并转换为png
func (pe *File) ParseIconToPng() ([]byte, error) {
iconDataList, err := pe.ParseIcon()
if err != nil {
return nil, err
}
var maxIconData []byte
for _, data := range iconDataList {
if mimetype.Detect(data).Is("image/png") {
return data, nil
}
if len(data) > len(maxIconData) {
maxIconData = data
}
}

// BIP file
if bytes.HasPrefix(maxIconData, []byte{0x28, 0x00, 0x00, 0x00}) {
return BIPToPNG(maxIconData)
}

img, _, err := image.Decode(bytes.NewReader(maxIconData))
if err != nil {
return nil, err
}
result := bytes.NewBuffer(nil)
err = png.Encode(result, img)
if err != nil {
return nil, err
}
return result.Bytes(), nil
}

func (pe *File) ParseIcon() ([][]byte, error) {
var iconEntry *ResourceDirectoryEntry
for _, e := range pe.Resources.Entries {
if e.ID != RTIcon {
continue
}
if len(e.Directory.Entries) == 0 {
return nil, errors.New("no entries found in resource directory")
}
iconEntry = &e
break
}
if iconEntry == nil {
return nil, errors.New("no icon found in resource directory")
}

iconDataList := make([][]byte, 0)

for _, iconItem := range iconEntry.Directory.Entries {
if len(iconItem.Directory.Entries) == 0 {
continue
}

iconData := &iconItem.Directory.Entries[0]

offset, size := pe.GetOffsetFromRva(iconData.Data.Struct.OffsetToData), iconData.Data.Struct.Size

b, err := pe.ReadBytesAtOffset(offset, size)
if err != nil {
return nil, err
}

iconDataList = append(iconDataList, b)
}
return iconDataList, nil
}

// BIP文件头结构
const (
headerSize = 40
magicNumberSize = 4
)

// BIPToPNG BIP转PNG处理函数
func BIPToPNG(bipData []byte) ([]byte, error) {
// 检查BIP文件头（示例中的magic number）
if !bytes.HasPrefix(bipData, []byte{0x28, 0x00, 0x00, 0x00}) {
return nil, fmt.Errorf("invalid bip file") // 或返回错误
}

// 解析宽高（小端序）
width := binary.LittleEndian.Uint32(bipData[magicNumberSize : magicNumberSize+4])
height := binary.LittleEndian.Uint32(bipData[magicNumberSize+4 : headerSize])

bipData = convertToRGBA(bipData, int(width), int(height))

// 创建RGBA图像
img := image.NewRGBA(image.Rect(0, 0, int(width), int(height)))
copy(img.Pix, bipData[headerSize:]) // 跳过文件头

// 计算裁剪区域（优先保留下半部分）
cropped := img.SubImage(image.Rect(
0,
int(width),
int(width),
0,
)).(*image.RGBA)

flipImageVertically(cropped)

buf := bytes.NewBuffer(nil)

err := png.Encode(buf, cropped)
if err != nil {
return nil, fmt.Errorf("fail to encode PNG image: %w", err)
}
return buf.Bytes(), nil
}

// 垂直翻转图像函数
func flipImageVertically(img *image.RGBA) {
height := img.Rect.Dy()
stride := img.Stride
pix := img.Pix

// 创建行缓冲区
lineBuffer := make([]byte, stride)

// 遍历上半部分图像
for y := 0; y < height/2; y++ {
// 计算上下行位置
top := y * stride
bottom := (height - 1 - y) * stride

// 交换两行像素
copy(lineBuffer, pix[top:top+stride]) // 暂存上行
copy(pix[top:top+stride], pix[bottom:bottom+stride]) // 下行复制到上行
copy(pix[bottom:bottom+stride], lineBuffer) // 缓冲区复制到下行
}
}

func convertToRGBA(data []byte, width, height int) []byte {
output := make([]byte, len(data))
for i := 0; i < len(data); i += 4 {
// BGR → RGB 转换
output[i] = data[i+2] // R
output[i+1] = data[i+1] // G
output[i+2] = data[i] // B
output[i+3] = data[i+3] // A
}
return output
}
58 changes: 58 additions & 0 deletions icon_test.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,58 @@
package pe

import (
"bytes"
"os"
"testing"
)

func Test_ParseIcon(t *testing.T) {
file, err := New(os.Getenv("PE_FILE"), &Options{})
if err != nil {
t.Errorf("open file failed, err %v", err)
return
}

defer func() {
_ = file.Close()
}()

err = file.Parse()
if err != nil {
t.Errorf("parse file failed, err %v", err)
return
}

data, err := file.ParseIconToPng()
if err != nil {
t.Errorf("parse file failed, err %v", err)
return
}

_ = os.WriteFile("test.png", data, 0644)
}

func TestBIPToPNGWithFile(t *testing.T) {
// 读取测试文件
bipData, err := os.ReadFile("temp.bip")
if err != nil {
t.Fatalf("fail to read bip file: %v", err)
}

// 验证BIP文件头
if !bytes.HasPrefix(bipData, []byte{0x28, 0x00, 0x00, 0x00}) {
t.Fatal("invalid bip header")
}

// 设置测试参数
const (
outputFile = "temp_test.png"
)

// 执行转换
if data, err := BIPToPNG(bipData); err != nil {
t.Fatalf("convert bip to png failed: %v", err)
} else {
_ = os.WriteFile(outputFile, data, 0644)
}
}