121 lines
3.1 KiB
Markdown
121 lines
3.1 KiB
Markdown
# go-clamav
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[](https://pkg.go.dev/github.com/ca110us/go-clamav?tab=doc)
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go-clamav 是 go 语言对 [libclamav](https://docs.clamav.net/manual/Development/libclamav.html) 的封装
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## 环境
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### Ubuntu
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```bash
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apt-get update && apt-get install -y \
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`# install tools` \
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gcc make pkg-config python3 python3-pip python3-pytest valgrind \
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`# install clamav dependencies` \
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check libbz2-dev libcurl4-openssl-dev libjson-c-dev libmilter-dev \
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libncurses5-dev libpcre2-dev libssl-dev libxml2-dev zlib1g-dev
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python3 -m pip install --user cmake / apt-get install cmake
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```
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从 clamav 官方下载源码 [downloads page](https://www.clamav.net/downloads)
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```bash
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tar xzf clamav-[ver].tar.gz
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cd clamav-[ver]
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mkdir build && cd build
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cmake ..
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cmake --build .
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ctest
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sudo cmake --build . --target install
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```
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其他 Linux 发行版参照 [clamav documentation](https://docs.clamav.net/manual/Installing/Installing-from-source-Unix.html)
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## 快速开始
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### 动态链接
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```bash
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$ cd example && cat main.go
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```
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```go
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package main
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import (
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"fmt"
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clamav "github.com/ca110us/go-clamav"
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)
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func main() {
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// new clamav instance
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c := new(clamav.Clamav)
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err := c.Init(clamav.SCAN_OPTIONS{
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General: 0,
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Parse: clamav.CL_SCAN_PARSE_ARCHIVE | clamav.CL_SCAN_PARSE_ELF,
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Heuristic: 0,
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Mail: 0,
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Dev: 0,
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})
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if err != nil {
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panic(err)
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}
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// free clamav memory
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defer c.Free()
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// load db
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signo, err := c.LoadDB("./db", uint(clamav.CL_DB_DIRECTORY))
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if err != nil {
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panic(err)
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}
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fmt.Println("db load succeed:", signo)
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// compile engine
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err = c.CompileEngine()
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if err != nil {
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panic(err)
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}
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c.EngineSetNum(clamav.CL_ENGINE_MAX_SCANSIZE, 1024*1024*40)
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c.EngineSetNum(clamav.CL_ENGINE_MAX_SCANTIME, 9000)
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// fmt.Println(c.EngineGetNum(clamav.CL_ENGINE_MAX_SCANSIZE))
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// scan
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scanned, virusName, ret := c.ScanFile("./test_file/nmap")
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fmt.Println(scanned, virusName, ret)
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}
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```
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```bash
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$ CGO_LDFLAGS="-L/usr/local/lib -lclamav" go run main.go
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db load succeed: 9263
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209 YARA.Unix_Packer_UpxDetail.UNOFFICIAL Virus(es) detected
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```
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如果找不到 `libclamav.so` 文件，尝试如下：
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```bash
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$ LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib CGO_LDFLAGS="-L/usr/local/lib -lclamav" go run main.go
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db load succeed: 9263
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209 YARA.Unix_Packer_UpxDetail.UNOFFICIAL Virus(es) detected
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```
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### 静态编译
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```bash
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$ sudo bash ./prepare.sh
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$ SRCDIR=$(pwd)
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$ export CGO_CFLAGS="-g -Wall -I${SRCDIR}/clamav-mussels-cookbook/mussels/install/include"
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$ export CGO_LDFLAGS="-L${SRCDIR}/clamav-mussels-cookbook/mussels/install/lib -lclamav_static -lbz2_static -lclammspack_static -lclamunrar_iface_static -lclamunrar_static -lcrypto -ljson-c -lpcre2-8 -lpcre2-posix -lssl -lxml2 -lz -lm -ldl -lstdc++"
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$ CGO_ENABLED=1 go build --ldflags '--extldflags "-static -fpic"' main.go
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```
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## 参考
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[mirtchovski/clamav](https://github.com/mirtchovski/clamav)
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*因为 `mirtchovski/clamav` 不再支持新版本 `clamav`，所以写了该项目*
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