使用Go语言写个简单的小Web工具:SWF文件去除Security限制工具
使用Go编写的一个简单的WebApp?，将提交上来的SWF中插入一个Security.allowDomain("*")代码。 --- 需要事先安装好swftools，并可通过命令行调用swfdump和swfcombine

项目地址：http://code.google.com/p/swfconserver/

package mainimport (    "fmt"    "net/http"    "io/ioutil"    "path"    "path/filepath"    "os"    "os/exec"    "strings"    "net/url"    "html/template"    "strconv")var __DIR__,_=filepath.Abs(".")var _,_=fmt.Println("Current Dir:"+__DIR__)var SecuritySWF=path.Join(__DIR__,"Security.swf")var indexHtml=path.Join(__DIR__,"index.html")var indexHtmlContent,_=ioutil.ReadFile(indexHtml)var postHtml=path.Join(__DIR__,"post.html")var postHtmlTpl=template.Must(template.ParseFiles(postHtml))type SwfInfo struct {    Filename string    Width string    Height string    Rate string    Frames string    Duration int    TempFilename string}func main() {    var port="8998"    fmt.Printf("Usage:%s [port]\n",os.Args[0])    if len(os.Args)>1 {        port=os.Args[1]    }    http.HandleFunc("/",indexView)    http.HandleFunc("/submit-swf/",submitView)    http.HandleFunc("/download-swf/",downloadView)    fmt.Printf("Serve on port %s.\n",port)    err:=http.ListenAndServe(":"+port,nil)    if err!=nil {        fmt.Println("ListenAndServe Error:",err);    }}func submitView(resp http.ResponseWriter,req *http.Request) {    resp.Header()["Content-Type"]=[]string{"text/html; charset=UTF-8"}    file,fileHeader,err:=req.FormFile("swf")    if err!=nil  {        fmt.Fprintf(resp,`<script>alert('请上传文件！\n%v');history.back();</script>`,err)        return    }    ct,ctok:=fileHeader.Header["Content-Type"]    if !ctok || ct[0]!="application/x-shockwave-flash"  {        fmt.Fprint(resp,`<script>alert('请上传有效的SWF文件！\n');history.back();</script>`)        return    }    tmpdir:=os.TempDir()    tmpfile,err:=ioutil.TempFile(tmpdir,"uploaded-swf-")    if err!=nil {        fmt.Fprint(resp,`创建Temp文件出错！<br />%v`,err)        return    }    filename:=fileHeader.Filename    tmpfilePath:=tmpfile.Name()    newFilePath:=tmpfilePath+"-generated.swf"    swfdata,_:=ioutil.ReadAll(file)    tmpfile.Write(swfdata)    width,height,rate,frames:=getSwfInfo(tmpfilePath)    cmd:=exec.Command("swfcombine","-a",SecuritySWF,tmpfilePath,"-X",width,                        "-Y",height,"-o",newFilePath)    cmd.Run()    tf:=path.Base(newFilePath)    iRate,_:=strconv.ParseFloat(rate,32)    iFrames,_:=strconv.ParseFloat(frames,32)    duration:=int(float32(iFrames/iRate)*1000)    swfinfo:=&SwfInfo{        Width:width,        Height:height,        Filename:filename,        Rate:rate,        Frames:frames,        TempFilename:tf,        Duration:duration,    }    postHtmlTpl.Execute(resp,swfinfo)}func downloadView(resp http.ResponseWriter,req *http.Request) {    tmpfilename:=path.Base(req.FormValue("tf"))    filename:=req.FormValue("filename")    tmpdir:=os.TempDir()    filePath:=path.Join(tmpdir,tmpfilename)    result,err:=ioutil.ReadFile(filePath)    if err!=nil {        resp.Header()["Content-Type"]=[]string{"text/html; charset=UTF-8"}        fmt.Fprintf(resp,`            <script>                alert("您要下载的SWF文件找不到，请重新提交SWF文件。\n%v");                window.close();                history.back();            </script>        `,err)        return    }    //os.Remove(filePath) //不删除了就    resp.Header()["Content-Type"]=[]string{"application/x-shockwave-flash"}    resp.Header()["Content-Disposition"]=[]string{"attachment; filename=Converted-"+url.QueryEscape(filename)}    resp.Write(result)}func getSwfInfo(swf string) (width,height,rate,frames string) {    cmd:=exec.Command("swfdump",                        "--width",                        "--height",                        "--rate",                        "--frames",                        swf)    outputb,_:=cmd.Output()    output:=strings.TrimSpace(string(outputb))    outa:=strings.Split(output," ")    if len(outa)==8 {        return outa[1],outa[3],outa[5],outa[7]    }    return "0","0","0","0"}func indexView(resp http.ResponseWriter,req *http.Request) {    resp.Header()["Content-Type"]=[]string{"text/html; charset=UTF-8"}    resp.Write(indexHtmlContent)}