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package httpserver
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import (
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"b612.me/starcrypto"
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"b612.me/starlog"
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"b612.me/staros"
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"context"
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"encoding/base64"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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)
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var version = "2.0.0"
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type HttpServerCfgs func(cfg *HttpServerCfg)
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type HttpServerCfg struct {
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basicAuthUser string
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basicAuthPwd string
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envPath string
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uploadFolder string
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logpath string
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indexFile string
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cert string
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key string
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addr string
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port string
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protectAuthPage []string
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disableMIME bool
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ctx context.Context
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}
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type HttpServer struct {
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HttpServerCfg
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}
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func WithTLSCert(cert, key string) HttpServerCfgs {
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return func(cfg *HttpServerCfg) {
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cfg.key = key
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cfg.cert = cert
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}
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}
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func WithUploadFolder(path string) HttpServerCfgs {
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return func(cfg *HttpServerCfg) {
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cfg.uploadFolder = path
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}
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}
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func NewHttpServer(addr, port, path string, opts ...HttpServerCfgs) *HttpServer {
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var server = HttpServer{
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HttpServerCfg: HttpServerCfg{
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addr: addr,
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port: port,
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envPath: path,
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},
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}
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for _, opt := range opts {
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opt(&server.HttpServerCfg)
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}
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return &server
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}
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func (h *HttpServer) Run(ctx context.Context) error {
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h.ctx = ctx
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server := http.Server{
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Addr: h.addr + ":" + h.port,
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Handler: h,
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}
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go func() {
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select {
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case <-h.ctx.Done():
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ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
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defer cancel()
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server.Shutdown(ctx)
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}
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}()
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if h.logpath != "" {
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starlog.SetLogFile(h.logpath, starlog.Std, true)
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}
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netcards, err := net.Interfaces()
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if err == nil {
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for _, v := range netcards {
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if strings.Contains(v.Flags.String(), "up") {
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addrs, err := v.Addrs()
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if err == nil {
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var ips []string
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for _, ip := range addrs {
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ips = append(ips, ip.String())
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}
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starlog.Noticef("Name:%s IP:%s MAC:%s\n", v.Name, strings.Join(ips, ","), v.HardwareAddr)
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}
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}
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}
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}
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starlog.Infoln("Listening on " + h.addr + ":" + h.port)
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if h.cert == "" {
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if err := server.ListenAndServe(); err != http.ErrServerClosed {
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return err
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}
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return nil
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}
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if err := server.ListenAndServeTLS(h.cert, h.key); err != http.ErrServerClosed {
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return err
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}
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return nil
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}
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func (h *HttpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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h.Listen(w, r)
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}
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func (h *HttpServer) GiveBasicAuth(w http.ResponseWriter) {
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w.Header().Set("WWW-Authenticate", ` Basic realm="Please Enter Passwd"`)
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w.WriteHeader(401)
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w.Write([]byte(`
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<html>
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<head><title>401 Authorization Required</title></head>
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<body>
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<center><h1>401 Authorization Required</h1></center>
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<hr><center>B612 HTTP SERVER</center>
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</body>
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</html>`))
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}
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func (h *HttpServer) BasicAuth(log *starlog.StarLogger, w http.ResponseWriter, r *http.Request) bool {
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if h.basicAuthPwd != "" {
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if len(h.protectAuthPage) != 0 {
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for _, v := range h.protectAuthPage {
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if !(strings.Index(r.URL.Path, v) == 0 || strings.Contains(r.URL.RawQuery, v)) {
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return true
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} else {
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break
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}
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}
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}
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authHeader := strings.TrimSpace(r.Header.Get("Authorization"))
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if len(authHeader) == 0 {
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log.Noticeln("No Authed! Get Path is", r.URL.Path, r.RemoteAddr)
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h.GiveBasicAuth(w)
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return false
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} else {
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userAuth := base64.StdEncoding.EncodeToString([]byte(h.basicAuthUser + ":" + h.basicAuthPwd))
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authStr := strings.Split(authHeader, " ")
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if strings.TrimSpace(authStr[1]) != userAuth || strings.ToLower(strings.TrimSpace(authStr[0])) != "basic" {
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log.Noticeln("Auth Failed! Get Path is", r.URL.Path, r.RemoteAddr, "pwd enter is", authHeader)
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h.GiveBasicAuth(w)
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return false
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}
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log.Infof("Path %s Authoried by %s:%s\n", r.URL.Path, r.RemoteAddr, authHeader)
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}
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}
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return true
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}
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func (h *HttpServer) SetUpload(w http.ResponseWriter, r *http.Request, path string) bool {
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if h.uploadFolder != "" {
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if len(r.URL.Query()["upload"]) != 0 {
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w.Write([]byte(`<html><body><form id= "uploadForm" action= "/recv?upload=true" method= "post" enctype ="multipart/form-data">
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<h1 >B612 File Upload Page </h1>
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<p >上传文件： <input type ="file" name="victorique" /></p>
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<input type ="submit" value="上传"/>
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</form>
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<h2>Copyright@b612.me </h2></body></html>`))
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return true
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}
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}
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return false
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}
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func (h *HttpServer) Listen(w http.ResponseWriter, r *http.Request) {
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log := starlog.Std.NewFlag()
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w.Header().Set("X-Powered-By", "B612.ME")
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w.Header().Set("Server", "B612/"+version)
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if !h.BasicAuth(log, w, r) {
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return
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}
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path := r.URL.Path
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if h.uploadFolder != "" && path == "/recv" && len(r.URL.Query()["upload"]) != 0 {
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h.uploadFile(w, r)
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return
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}
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fullpath := filepath.Join(h.envPath, path)
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if path == "/" && h.indexFile != "" {
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if staros.Exists(filepath.Join(h.envPath, h.indexFile)) {
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fullpath = filepath.Join(h.envPath, h.indexFile)
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path = "/" + h.indexFile
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}
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}
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log.Noticef("Start Method:%s Path:%s IP:%s\n", r.Method, path, r.RemoteAddr)
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if h.SetUpload(w, r, path) {
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return
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}
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switch r.Method {
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case "OPTIONS", "HEAD":
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err := h.BuildHeader(w, r, fullpath)
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if err != nil {
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log.Warningf("Finished Method:%s Path:%s IP:%s Err:%v\n", r.Method, path, r.RemoteAddr, err)
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} else {
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log.Infof("Finished Method:%s Path:%s IP:%s\n", r.Method, path, r.RemoteAddr)
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}
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case "GET":
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err := h.BuildHeader(w, r, fullpath)
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if err != nil {
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log.Warningf("GET Header Build Failed Path:%s IP:%s Err:%v\n", path, r.RemoteAddr, err)
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}
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err = h.ResponseGet(log, w, r, fullpath)
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if err != nil {
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log.Warningf("Finished Method %s Path:%s IP:%s Err:%v\n", r.Method, path, r.RemoteAddr, err)
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return
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}
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log.Infof("Finished Method:%s Path:%s IP:%s\n", r.Method, path, r.RemoteAddr)
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default:
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log.Warningf("Invalid Method %s Path:%s IP:%s\n", r.Method, path, r.RemoteAddr)
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return
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}
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}
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func (h *HttpServer) CalcRange(r *http.Request) (int64, int64) {
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var rangeStart, rangeEnd int64
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rangeStart, rangeEnd = -1, -1
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for k, v := range r.Header {
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if strings.ToLower(k) == "range" {
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if strings.Contains(v[0], "bytes=") {
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v[0] = strings.Replace(v[0], "bytes=", "", -1)
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}
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data := strings.Split(v[0], "-")
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if len(data) == 0 {
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break
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}
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rangeStart, _ = strconv.ParseInt(data[0], 10, 64)
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if len(data) > 1 {
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rangeEnd, _ = strconv.ParseInt(data[1], 10, 64)
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}
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//w.WriteHeader(206) //206 支持断点续传
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break
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}
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}
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return rangeStart, rangeEnd
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}
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func (h *HttpServer) BuildHeader(w http.ResponseWriter, r *http.Request, fullpath string) error {
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if r.Method == "OPTIONS" {
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w.Header().Set("Allow", "OPTIONS,GET,HEAD")
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w.Header().Set("Content-Length", "0")
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}
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w.Header().Set("Date", strings.ReplaceAll(time.Now().UTC().Format("Mon, 2 Jan 2006 15:04:05 MST"), "UTC", "GMT"))
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if staros.IsFolder(fullpath) {
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return nil
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}
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mime := h.MIME(fullpath)
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if h.disableMIME || mime == "" {
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w.Header().Set("Content-Type", "application/download")
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w.Header().Set("Content-Disposition", "attachment;filename="+filepath.Base(fullpath))
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w.Header().Set("Content-Transfer-Encoding", "binary")
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} else {
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w.Header().Set("Content-Type", mime)
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}
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if staros.Exists(fullpath) {
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finfo, err := os.Stat(fullpath)
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if err != nil {
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w.WriteHeader(502)
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w.Write([]byte("Failed to Read " + fullpath + ",reason is " + err.Error()))
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return err
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}
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w.Header().Set("Accept-Ranges", "bytes")
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w.Header().Set("ETag", starcrypto.Md5Str([]byte(finfo.ModTime().String())))
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w.Header().Set("Last-Modified", strings.ReplaceAll(finfo.ModTime().UTC().Format("Mon, 2 Jan 2006 15:04:05 MST"), "UTC", "GMT"))
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if r.Method != "OPTIONS" {
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w.Header().Set("Content-Length", strconv.FormatInt(finfo.Size(), 10))
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start, end := h.CalcRange(r)
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if start != -1 {
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if end == -1 {
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w.Header().Set("Content-Range", `bytes `+strconv.FormatInt(start, 10)+"-"+strconv.FormatInt(finfo.Size(), 10)+"/"+strconv.FormatInt(finfo.Size(), 10))
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//w.Header().Set("Content-Length", strconv.FormatInt(fpinfo.Size()-rangeStart, 10))
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} else {
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|
|
w.Header().Set("Content-Range", `bytes `+strconv.FormatInt(start, 10)+"-"+strconv.FormatInt(end, 10)+"/"+strconv.FormatInt(finfo.Size(), 10))
|
|
|
|
|
|
//w.Header().Set("Content-Length", strconv.FormatInt(1+rangeEnd-rangeStart, 10))
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
return nil
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (h *HttpServer) ResponseGet(log *starlog.StarLogger, w http.ResponseWriter, r *http.Request, fullpath string) error {
|
|
|
|
|
|
if staros.IsFolder(fullpath) {
|
|
|
|
|
|
return h.getFolder(log, w, r, fullpath)
|
|
|
|
|
|
}
|
|
|
|
|
|
return h.getFile(log, w, r, fullpath)
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (h *HttpServer) getFolder(log *starlog.StarLogger, w http.ResponseWriter, r *http.Request, fullpath string) error {
|
|
|
|
|
|
dir, err := ioutil.ReadDir(fullpath)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
log.Errorf("Read Folder %s failed:%v\n", fullpath, err)
|
|
|
|
|
|
w.WriteHeader(403)
|
|
|
|
|
|
if r.Method == "HEAD" {
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
w.Write([]byte("<h1>Cannot Access!</h1>"))
|
|
|
|
|
|
}
|
|
|
|
|
|
if r.Method != "GET" {
|
|
|
|
|
|
return nil
|
|
|
|
|
|
}
|
|
|
|
|
|
w.Write([]byte("<html>\n<style>\np{margin: 2px auto}\n</style>\n<h1>B612 Http Server - " + version + "</h1>"))
|
|
|
|
|
|
if h.uploadFolder != "" {
|
|
|
|
|
|
w.Write([]byte("<a href=/b612?upload=true>Upload Web Page Is Openned!</a><br /><br />"))
|
|
|
|
|
|
}
|
|
|
|
|
|
w.Write([]byte("<hr /><pre>\n"))
|
|
|
|
|
|
if r.URL.Path != "/" {
|
|
|
|
|
|
w.Write([]byte(fmt.Sprintf("<p><a href='%s'>%s</a> %s</p>\n", r.URL.Path+"/..", "..", "上层文件夹")))
|
|
|
|
|
|
}
|
|
|
|
|
|
if r.URL.Path == "/" {
|
|
|
|
|
|
r.URL.Path = ""
|
|
|
|
|
|
} else if r.URL.Path[len(r.URL.Path)-1:] == "/" {
|
|
|
|
|
|
r.URL.Path = r.URL.Path[0 : len(r.URL.Path)-1]
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
for _, v := range dir {
|
|
|
|
|
|
if v.Name() != "." || v.Name() != ".." {
|
|
|
|
|
|
if !v.IsDir() {
|
|
|
|
|
|
w.Write([]byte(fmt.Sprintf("<p><a href='%s'>%s</a> %d %s</p>\n", r.URL.Path+"/"+v.Name(), v.Name(), int(v.Size()), v.ModTime().Format("2006-01-02 15:04:05"))))
|
|
|
|
|
|
} else {
|
|
|
|
|
|
w.Write([]byte(fmt.Sprintf("<p><a href='%s'>%s</a> %s %s</p>\n", r.URL.Path+"/"+v.Name(), v.Name(), "文件夹", v.ModTime().Format("2006-01-02 15:04:05"))))
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
w.Write([]byte("</pre>\n</html>"))
|
|
|
|
|
|
return nil
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (h *HttpServer) getFile(log *starlog.StarLogger, w http.ResponseWriter, r *http.Request, fullpath string) error {
|
|
|
|
|
|
if !staros.Exists(fullpath) {
|
|
|
|
|
|
w.WriteHeader(404)
|
|
|
|
|
|
return errors.New("File Not Found! 404 ERROR")
|
|
|
|
|
|
}
|
|
|
|
|
|
//starlog.Debugln(r.Header)
|
|
|
|
|
|
startRange, endRange := h.CalcRange(r)
|
|
|
|
|
|
fp, err := os.Open(fullpath)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
log.Errorf("Failed to open file %s,reason:%v\n", r.URL.Path, err)
|
|
|
|
|
|
w.WriteHeader(502)
|
|
|
|
|
|
w.Write([]byte("<h1>502 SERVER ERROR</h1>"))
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
defer fp.Close()
|
|
|
|
|
|
var transferData int
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if transferData != 0 {
|
|
|
|
|
|
var tani string
|
|
|
|
|
|
tani = fmt.Sprintf("%v Byte", transferData)
|
|
|
|
|
|
if f64 := float64(transferData) / 1024; f64 > 1 {
|
|
|
|
|
|
tani = fmt.Sprintf("%v KB", f64)
|
|
|
|
|
|
if f64 = float64(f64) / 1024; f64 > 1 {
|
|
|
|
|
|
tani = fmt.Sprintf("%v MB", f64)
|
|
|
|
|
|
if f64 = float64(f64) / 1024; f64 > 1 {
|
|
|
|
|
|
tani = fmt.Sprintf("%v GB", f64)
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
log.Infof("Tranfered File %s %d bytes (%s) to remote %v\n", r.URL.Path,
|
|
|
|
|
|
transferData, tani, r.RemoteAddr)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
if startRange == -1 {
|
|
|
|
|
|
w.WriteHeader(200)
|
|
|
|
|
|
for {
|
|
|
|
|
|
buf := make([]byte, 1048576)
|
|
|
|
|
|
n, err := fp.Read(buf)
|
|
|
|
|
|
if n != 0 {
|
|
|
|
|
|
ns, err := w.Write(buf[0:n])
|
|
|
|
|
|
transferData += ns
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
log.Errorf("Transfer File %s to Remote Failed:%v\n", fullpath, err)
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
if err == io.EOF {
|
|
|
|
|
|
break
|
|
|
|
|
|
}
|
|
|
|
|
|
log.Errorln("Read File %s Failed:%v\n", fullpath, err)
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
return nil
|
|
|
|
|
|
}
|
|
|
|
|
|
log.Debugf("206 transfer mode for %v %v\n", r.URL.Path, r.RemoteAddr)
|
|
|
|
|
|
w.WriteHeader(206)
|
|
|
|
|
|
fp.Seek(int64(startRange), 0)
|
|
|
|
|
|
count := startRange
|
|
|
|
|
|
for {
|
|
|
|
|
|
buf := make([]byte, 1048576)
|
|
|
|
|
|
n, err := fp.Read(buf)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
if err == io.EOF {
|
|
|
|
|
|
break
|
|
|
|
|
|
}
|
|
|
|
|
|
log.Errorf("Read File %s Failed:%v\n", r.URL.Path, err)
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
if endRange == -1 {
|
|
|
|
|
|
ns, err := w.Write(buf[0:n])
|
|
|
|
|
|
transferData += ns
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
log.Errorf("Transfer File %s to Remote Failed:%v\n", r.URL.Path, err)
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
} else {
|
|
|
|
|
|
if count > endRange {
|
|
|
|
|
|
break
|
|
|
|
|
|
}
|
|
|
|
|
|
writeNum := n
|
|
|
|
|
|
if count+int64(n) > endRange {
|
|
|
|
|
|
writeNum = int(endRange - count + 1)
|
|
|
|
|
|
}
|
|
|
|
|
|
ns, err := w.Write(buf[0:writeNum])
|
|
|
|
|
|
transferData += ns
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
log.Errorln("Transfer Error:", err)
|
|
|
|
|
|
return err
|
|
|
|
|
|
}
|
|
|
|
|
|
count += int64(n)
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
return nil
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (h *HttpServer) uploadFile(w http.ResponseWriter, r *http.Request) {
|
|
|
|
|
|
if r.Method != "POST" {
|
|
|
|
|
|
w.WriteHeader(200)
|
|
|
|
|
|
w.Write([]byte("USE POST METHOD!"))
|
|
|
|
|
|
return
|
|
|
|
|
|
}
|
|
|
|
|
|
r.ParseMultipartForm(10485760)
|
|
|
|
|
|
file, handler, err := r.FormFile("victorique")
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
starlog.Errorf("Parse File From Form Failed:%v\n", err)
|
|
|
|
|
|
w.WriteHeader(502)
|
|
|
|
|
|
w.Write([]byte(err.Error()))
|
|
|
|
|
|
return
|
|
|
|
|
|
}
|
|
|
|
|
|
defer file.Close()
|
|
|
|
|
|
starlog.Noticef("Uploading %s From %s\n", handler.Filename, r.RemoteAddr)
|
|
|
|
|
|
os.MkdirAll(filepath.Join(h.envPath, h.uploadFolder), 0755)
|
|
|
|
|
|
f, err := os.OpenFile(filepath.Join(h.uploadFolder, handler.Filename), os.O_WRONLY|os.O_CREATE, 0755)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
starlog.Errorf("Open Local File %s Form %v Failed:%v\n", handler.Filename, r.RemoteAddr, err)
|
|
|
|
|
|
return
|
|
|
|
|
|
}
|
|
|
|
|
|
defer f.Close()
|
|
|
|
|
|
_, err = io.Copy(f, file)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
starlog.Errorf("Write File %s Form %v Failed:%v\n", handler.Filename, r.RemoteAddr, err)
|
|
|
|
|
|
return
|
|
|
|
|
|
}
|
|
|
|
|
|
starlog.Infof("Write File %s Form %v Finished\n", handler.Filename, r.RemoteAddr)
|
|
|
|
|
|
fmt.Fprintf(w, `<html><body><p>%v</p><h2><a href="/b612?upload=true">Return To Web Page</a></h2></body></html>`, handler.Header)
|
|
|
|
|
|
}
|
