From 43001690415614d43d54d68b77c61b6f926cdf09 Mon Sep 17 00:00:00 2001
From: fatedier <fatedier@gmail.com>
Date: Wed, 10 Aug 2016 20:18:36 +0800
Subject: [PATCH] assets: optimize static files archetucture
---
Makefile | 1 +
assets/{static => css}/bootstrap.min.css | 6 --
assets/{static => css}/font-awesome.min.css | 0
assets/css/iconfont.css | 18 ++++
assets/{static => font}/iconfont.eot | Bin
assets/{static => font}/iconfont.svg | 0
assets/{static => font}/iconfont.ttf | Bin
assets/{static => font}/iconfont.woff | Bin
assets/index.html | 89 +++++++++-----------
assets/{static => js}/angular.min.js | 1 -
assets/{static => js}/bootstrap.min.js | 0
assets/{static => js}/echarts.min.js | 0
assets/{static => js}/jquery.min.js | 0
conf/frps.ini | 2 +
src/frp/models/server/config.go | 10 +++
src/frp/models/server/dashboard.go | 71 +++++++---------
src/frp/models/server/dashboard_api.go | 17 ++--
src/frp/models/server/dashboard_view.go | 35 ++++++++
src/frp/models/server/server.go | 8 +-
src/frp/utils/vhost/vhost.go | 1 -
20 files changed, 153 insertions(+), 106 deletions(-)
rename assets/{static => css}/bootstrap.min.css (99%)
rename assets/{static => css}/font-awesome.min.css (100%)
create mode 100644 assets/css/iconfont.css
rename assets/{static => font}/iconfont.eot (100%)
rename assets/{static => font}/iconfont.svg (100%)
rename assets/{static => font}/iconfont.ttf (100%)
rename assets/{static => font}/iconfont.woff (100%)
rename assets/{static => js}/angular.min.js (99%)
rename assets/{static => js}/bootstrap.min.js (100%)
rename assets/{static => js}/echarts.min.js (100%)
rename assets/{static => js}/jquery.min.js (100%)
create mode 100644 src/frp/models/server/dashboard_view.go
diff --git a/Makefile b/Makefile
index 21362383..366cd882 100644
--- a/Makefile
+++ b/Makefile
@@ -15,6 +15,7 @@ fmt:
frps:
go build -o bin/frps ./src/frp/cmd/frps
+ cp -rf ./assets ./bin
frpc:
go build -o bin/frpc ./src/frp/cmd/frpc
diff --git a/assets/static/bootstrap.min.css b/assets/css/bootstrap.min.css
similarity index 99%
rename from assets/static/bootstrap.min.css
rename to assets/css/bootstrap.min.css
index c2897e22..9b785e10 100644
--- a/assets/static/bootstrap.min.css
+++ b/assets/css/bootstrap.min.css
@@ -1,10 +1,4 @@
/*!
- * bootswatch v3.3.6
- * Homepage: http://bootswatch.com
- * Copyright 2012-2015 Thomas Park
- * Licensed under MIT
- * Based on Bootstrap
-*//*!
* Bootstrap v3.3.6 (http://getbootstrap.com)
* Copyright 2011-2015 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
diff --git a/assets/static/font-awesome.min.css b/assets/css/font-awesome.min.css
similarity index 100%
rename from assets/static/font-awesome.min.css
rename to assets/css/font-awesome.min.css
diff --git a/assets/css/iconfont.css b/assets/css/iconfont.css
new file mode 100644
index 00000000..f59c1186
--- /dev/null
+++ b/assets/css/iconfont.css
@@ -0,0 +1,18 @@
+
+@font-face {font-family: "iconfont";
+ src: url('/static/font/iconfont.eot'); /* IE9*/
+ src: url('/static/font/iconfont.eot#iefix') format('embedded-opentype'), /* IE6-IE8 */
+ url('/static/font/iconfont.woff') format('woff'), /* chrome, firefox */
+ url('/static/font/iconfont.ttf') format('truetype'), /* chrome, firefox, opera, Safari, Android, iOS 4.2+*/
+ url('/static/font/iconfont.svg#iconfont') format('svg'); /* iOS 4.1- */
+}
+
+.iconfont {
+ font-family:"iconfont" !important;
+ font-size:16px;
+ font-style:normal;
+ -webkit-font-smoothing: antialiased;
+ -webkit-text-stroke-width: 0.2px;
+ -moz-osx-font-smoothing: grayscale;
+}
+.icon-sort:before { content: "\e66d"; }
diff --git a/assets/static/iconfont.eot b/assets/font/iconfont.eot
similarity index 100%
rename from assets/static/iconfont.eot
rename to assets/font/iconfont.eot
diff --git a/assets/static/iconfont.svg b/assets/font/iconfont.svg
similarity index 100%
rename from assets/static/iconfont.svg
rename to assets/font/iconfont.svg
diff --git a/assets/static/iconfont.ttf b/assets/font/iconfont.ttf
similarity index 100%
rename from assets/static/iconfont.ttf
rename to assets/font/iconfont.ttf
diff --git a/assets/static/iconfont.woff b/assets/font/iconfont.woff
similarity index 100%
rename from assets/static/iconfont.woff
rename to assets/font/iconfont.woff
diff --git a/assets/index.html b/assets/index.html
index fe5b4dc5..f5bd7cd4 100644
--- a/assets/index.html
+++ b/assets/index.html
@@ -3,19 +3,14 @@
<head>
<title>frp</title>
- <link href="static/bootstrap.min.css" rel="stylesheet">
- <script src="static/jquery.min.js"></script>
- <script src="static/bootstrap.min.js"></script>
- <link href="static/iconfont.css" rel="stylesheet">
+ <link href="static/css/bootstrap.min.css" rel="stylesheet">
+ <link href="static/css/iconfont.css" rel="stylesheet">
+ <script src="static/js/jquery.min.js"></script>
+ <script src="static/js/bootstrap.min.js"></script>
</head>
<body>
- <div class="container-fluid">
- <!--div class="row">
- <div class="col-sm-12 text-center">
- <h1 class="logo">frp</h1>
- </div>
- </div-->
+ <div class="container-fluid" style="margin-top: 80px">
<div class="row">
<div class="col-md-5 col-sm-offset-1">
<div class="panel panel-default">
@@ -57,23 +52,23 @@
</div>
</div>
</div>
- <script src="static/angular.min.js"></script>
- <script type="text/javascript" src="static/echarts.min.js"></script>
+ <script src="static/js/angular.min.js"></script>
+ <script type="text/javascript" src="static/js/echarts.min.js"></script>
<script>
var alldata = new Array();
var index = null;
- <<< range .proxies >>>
- alldata["<<< .name >>>"] = {
- name: "<<< .name >>>",
- type: "<<< .type >>>",
- bind_addr: "<<< .bind_addr >>>",
- listen_port: "<<< .listen_port >>>",
- current_conns: <<< .current_conns >>> ,
- domains: [ <<< range.custom_domains >>> "<<< . >>>", <<< end >>> ],
- stat: "<<< .status >>>",
- use_encryption: "<<< .use_encryption >>>",
- use_gzip: "<<< .use_gzip >>>",
- privilege_mode: "<<< .privilege_mode >>>",
+ <<< range .>>>
+ alldata["<<< .Name >>>"] = {
+ name: "<<< .Name >>>",
+ type: "<<< .Type >>>",
+ bind_addr: "<<< .BindAddr >>>",
+ listen_port: "<<< .ListenPort >>>",
+ current_conns: <<< .CurrentConns >>> ,
+ domains: [ <<< range.CustomDomains >>> "<<< . >>>", <<< end >>> ],
+ stat: "<<< .Status >>>",
+ use_encryption: "<<< .UseEncryption >>>",
+ use_gzip: "<<< .UseGzip >>>",
+ privilege_mode: "<<< .PrivilegeMode >>>",
times: [],
ins: [],
outs: [],
@@ -93,7 +88,6 @@
var step = 1;
function reloadview() {
- console.log("in reloadview index:", index);
window.maxval = 0;
window.dw = " B";
window.step = 1;
@@ -154,12 +148,12 @@
},
series: [{
name: 'flow_in',
- type: 'line',
+ type: 'bar',
stack: '总量',
data: alldata[index].ins
}, {
name: 'flow_out',
- type: 'line',
+ type: 'bar',
stack: '总量',
data: alldata[index].outs
}]
@@ -196,7 +190,7 @@
},
series: [{
name: 'total_accept_conns',
- type: 'line',
+ type: 'bar',
stack: '总量',
data: alldata[index].conns
}]
@@ -244,34 +238,33 @@
{
var ttdy = new Date();
var today = ttdy.getFullYear() * 10000 + (1 + ttdy.getMonth()) * 100 + ttdy.getDate();
- for (var inx in newproxies.proxies) {
- console.log("now inx is ", inx);
- if (newproxies.proxies[inx].current_conns == undefined) {
- newproxies.proxies[inx].current_conns = 0;
- alldata[newproxies.proxies[inx].name].current_conns = 0;
+ for (var inx in newproxies) {
+ if (newproxies[inx].current_conns == undefined) {
+ newproxies[inx].current_conns = 0;
+ alldata[newproxies[inx].name].current_conns = 0;
}
- if (newproxies.proxies[inx].daily == undefined ) {
- newproxies.proxies[inx].daily = [];
+ if (newproxies[inx].daily == undefined ) {
+ newproxies[inx].daily = [];
}
- newproxies.proxies[inx].daily.sort(function (a, b) {
+ newproxies[inx].daily.sort(function (a, b) {
return a.time > b.time;
});
- for (var iinnx in newproxies.proxies[inx].daily) {
- alldata[newproxies.proxies[inx].name].times.push(newproxies.proxies[inx].daily[iinnx].time);
- alldata[newproxies.proxies[inx].name].ins.push(newproxies.proxies[inx].daily[iinnx].flow_in);
- alldata[newproxies.proxies[inx].name].outs.push(newproxies.proxies[inx].daily[iinnx].flow_out);
- alldata[newproxies.proxies[inx].name].conns.push(newproxies.proxies[inx].daily[iinnx].total_accept_conns);
+ for (var iinnx in newproxies[inx].daily) {
+ alldata[newproxies[inx].name].times.push(newproxies[inx].daily[iinnx].time);
+ alldata[newproxies[inx].name].ins.push(newproxies[inx].daily[iinnx].flow_in);
+ alldata[newproxies[inx].name].outs.push(newproxies[inx].daily[iinnx].flow_out);
+ alldata[newproxies[inx].name].conns.push(newproxies[inx].daily[iinnx].total_accept_conns);
}
- if (newproxies.proxies[inx].daily.length == 0 || newproxies.proxies[inx].daily[0].time != today) {
- alldata[newproxies.proxies[inx].name].times.push(today);
- alldata[newproxies.proxies[inx].name].ins.push(0);
- alldata[newproxies.proxies[inx].name].outs.push(0);
- alldata[newproxies.proxies[inx].name].conns.push(0);
- newproxies.proxies[inx].daily.push({
+ if (newproxies[inx].daily.length == 0 || newproxies[inx].daily[0].time != today) {
+ alldata[newproxies[inx].name].times.push(today);
+ alldata[newproxies[inx].name].ins.push(0);
+ alldata[newproxies[inx].name].outs.push(0);
+ alldata[newproxies[inx].name].conns.push(0);
+ newproxies[inx].daily.push({
time: today,
flow_in: 0,
flow_out: 0,
@@ -286,7 +279,7 @@
app.controller('myCtrl', function($scope) {
$scope.col = 'name';
$scope.desc = 0;
- $scope.proxies = newproxies.proxies;
+ $scope.proxies = newproxies;
});
$(".tab_info").hover(
diff --git a/assets/static/angular.min.js b/assets/js/angular.min.js
similarity index 99%
rename from assets/static/angular.min.js
rename to assets/js/angular.min.js
index bf50a288..4cbd7c33 100644
--- a/assets/static/angular.min.js
+++ b/assets/js/angular.min.js
@@ -315,4 +315,3 @@ y(e)||e.test(b)}}}}},Kc=function(){return{restrict:"A",require:"?ngModel",link:f
C.console&&console.log("WARNING: Tried to load angular more than once."):(je(),le(ca),ca.module("ngLocale",[],["$provide",function(a){function b(a){a+="";var b=a.indexOf(".");return-1==b?0:a.length-b-1}a.value("$locale",{DATETIME_FORMATS:{AMPMS:["AM","PM"],DAY:"Sunday Monday Tuesday Wednesday Thursday Friday Saturday".split(" "),ERANAMES:["Before Christ","Anno Domini"],ERAS:["BC","AD"],FIRSTDAYOFWEEK:6,MONTH:"January February March April May June July August September October November December".split(" "),
SHORTDAY:"Sun Mon Tue Wed Thu Fri Sat".split(" "),SHORTMONTH:"Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec".split(" "),STANDALONEMONTH:"January February March April May June July August September October November December".split(" "),WEEKENDRANGE:[5,6],fullDate:"EEEE, MMMM d, y",longDate:"MMMM d, y",medium:"MMM d, y h:mm:ss a",mediumDate:"MMM d, y",mediumTime:"h:mm:ss a","short":"M/d/yy h:mm a",shortDate:"M/d/yy",shortTime:"h:mm a"},NUMBER_FORMATS:{CURRENCY_SYM:"$",DECIMAL_SEP:".",GROUP_SEP:",",
PATTERNS:[{gSize:3,lgSize:3,maxFrac:3,minFrac:0,minInt:1,negPre:"-",negSuf:"",posPre:"",posSuf:""},{gSize:3,lgSize:3,maxFrac:2,minFrac:2,minInt:1,negPre:"-\u00a4",negSuf:"",posPre:"\u00a4",posSuf:""}]},id:"en-us",localeID:"en_US",pluralCat:function(a,c){var e=a|0,f=c;void 0===f&&(f=Math.min(b(a),3));Math.pow(10,f);return 1==e&&0==f?"one":"other"}})}]),F(C.document).ready(function(){fe(C.document,Bc)}))})(window);!window.angular.$$csp().noInlineStyle&&window.angular.element(document.head).prepend('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');
-//# sourceMappingURL=angular.min.js.map
diff --git a/assets/static/bootstrap.min.js b/assets/js/bootstrap.min.js
similarity index 100%
rename from assets/static/bootstrap.min.js
rename to assets/js/bootstrap.min.js
diff --git a/assets/static/echarts.min.js b/assets/js/echarts.min.js
similarity index 100%
rename from assets/static/echarts.min.js
rename to assets/js/echarts.min.js
diff --git a/assets/static/jquery.min.js b/assets/js/jquery.min.js
similarity index 100%
rename from assets/static/jquery.min.js
rename to assets/js/jquery.min.js
diff --git a/conf/frps.ini b/conf/frps.ini
index 95a10100..c124fb1f 100644
--- a/conf/frps.ini
+++ b/conf/frps.ini
@@ -7,6 +7,8 @@ vhost_http_port = 80
vhost_https_port = 443
# if you want to configure or reload frps by dashboard, dashboard_port must be set
dashboard_port = 7500
+# dashboard assets directory(only for debug mode)
+assets_dir = ./assets
# console or real logFile path like ./frps.log
log_file = ./frps.log
# debug, info, warn, error
diff --git a/src/frp/models/server/config.go b/src/frp/models/server/config.go
index 7de55bce..9ac11ae3 100644
--- a/src/frp/models/server/config.go
+++ b/src/frp/models/server/config.go
@@ -36,6 +36,7 @@ var (
VhostHttpPort int64 = 0 // if VhostHttpPort equals 0, don't listen a public port for http protocol
VhostHttpsPort int64 = 0 // if VhostHttpsPort equals 0, don't listen a public port for https protocol
DashboardPort int64 = 0 // if DashboardPort equals 0, dashboard is not available
+ AssetsDir string = ""
LogFile string = "console"
LogWay string = "console" // console or file
LogLevel string = "info"
@@ -118,6 +119,11 @@ func loadCommonConf(confFile string) error {
DashboardPort = 0
}
+ tmpStr, ok = conf.Get("common", "assets_dir")
+ if ok {
+ AssetsDir = tmpStr
+ }
+
tmpStr, ok = conf.Get("common", "log_file")
if ok {
LogFile = tmpStr
@@ -252,6 +258,8 @@ func loadProxyConf(confFile string) (proxyServers map[string]*ProxyServer, err e
}
} else if proxyServer.Type == "http" {
// for http
+ proxyServer.ListenPort = VhostHttpPort
+
domainStr, ok := section["custom_domains"]
if ok {
proxyServer.CustomDomains = strings.Split(domainStr, ",")
@@ -266,6 +274,8 @@ func loadProxyConf(confFile string) (proxyServers map[string]*ProxyServer, err e
}
} else if proxyServer.Type == "https" {
// for https
+ proxyServer.ListenPort = VhostHttpsPort
+
domainStr, ok := section["custom_domains"]
if ok {
proxyServer.CustomDomains = strings.Split(domainStr, ",")
diff --git a/src/frp/models/server/dashboard.go b/src/frp/models/server/dashboard.go
index 62e247af..8579337b 100644
--- a/src/frp/models/server/dashboard.go
+++ b/src/frp/models/server/dashboard.go
@@ -16,55 +16,42 @@ package server
import (
"fmt"
- "frp/models/metric"
- "html/template"
+ "net"
"net/http"
-
- "github.com/gin-gonic/gin"
+ "time"
)
-func index(w http.ResponseWriter, r *http.Request) {
- serinfo := metric.GetAllProxyMetrics()
- t := template.Must(template.New("index.html").Delims("<<<", ">>>").ParseFiles("index.html"))
-
- err := t.Execute(w, serinfo)
- if err != nil {
- fmt.Println(err.Error())
- }
-}
+var (
+ httpServerReadTimeout = 10 * time.Second
+ httpServerWriteTimeout = 10 * time.Second
+)
func RunDashboardServer(addr string, port int64) (err error) {
- defer func() {
- if r := recover(); r != nil {
- err = fmt.Errorf("%v", r)
- }
- }()
- gin.SetMode(gin.ReleaseMode)
- router := gin.New()
- //router.LoadHTMLGlob("assets/*")
- router.GET("/api/reload", apiReload)
- router.GET("/api/proxies", apiProxies)
- go router.Run(fmt.Sprintf("%s:%d", addr, port))
- return
-}
-
-func RunDashboardServer2(addr string, port int64) (err error) {
- defer func() {
- if r := recover(); r != nil {
- err = fmt.Errorf("%v", r)
- }
- }()
-
- http.HandleFunc("/", index)
-
- fs := http.FileServer(http.Dir("static"))
- http.Handle("/static/", http.StripPrefix("/static/", fs))
-
- newPort := fmt.Sprintf(":%d", port)
- err = http.ListenAndServe(newPort, nil)
+ // url router
+ mux := http.NewServeMux()
+ // api, see dashboard_api.go
+ mux.HandleFunc("/api/reload", apiReload)
+ mux.HandleFunc("/api/proxies", apiProxies)
+
+ // view see dashboard_view.go
+ mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./assets"))))
+ mux.HandleFunc("/", viewDashboard)
+
+ address := fmt.Sprintf("%s:%d", addr, port)
+ server := &http.Server{
+ Addr: address,
+ Handler: mux,
+ ReadTimeout: httpServerReadTimeout,
+ WriteTimeout: httpServerWriteTimeout,
+ }
+ if address == "" {
+ address = ":http"
+ }
+ ln, err := net.Listen("tcp", address)
if err != nil {
return err
}
- return nil
+ go server.Serve(ln)
+ return
}
diff --git a/src/frp/models/server/dashboard_api.go b/src/frp/models/server/dashboard_api.go
index 6a07a558..db21eb1a 100644
--- a/src/frp/models/server/dashboard_api.go
+++ b/src/frp/models/server/dashboard_api.go
@@ -17,8 +17,7 @@ package server
import (
"encoding/json"
"fmt"
-
- "github.com/gin-gonic/gin"
+ "net/http"
"frp/models/metric"
"frp/utils/log"
@@ -29,10 +28,10 @@ type GeneralResponse struct {
Msg string `json:"msg"`
}
-func apiReload(c *gin.Context) {
+func apiReload(w http.ResponseWriter, r *http.Request) {
+ var buf []byte
res := &GeneralResponse{}
defer func() {
- buf, _ := json.Marshal(res)
log.Info("Http response [/api/reload]: %s", string(buf))
}()
@@ -43,7 +42,9 @@ func apiReload(c *gin.Context) {
res.Msg = fmt.Sprintf("%v", err)
log.Error("frps reload error: %v", err)
}
- c.JSON(200, res)
+
+ buf, _ = json.Marshal(res)
+ w.Write(buf)
}
type ProxiesResponse struct {
@@ -52,7 +53,8 @@ type ProxiesResponse struct {
Proxies []*metric.ServerMetric `json:"proxies"`
}
-func apiProxies(c *gin.Context) {
+func apiProxies(w http.ResponseWriter, r *http.Request) {
+ var buf []byte
res := &ProxiesResponse{}
defer func() {
log.Info("Http response [/api/proxies]: code [%d]", res.Code)
@@ -60,5 +62,6 @@ func apiProxies(c *gin.Context) {
log.Info("Http request: [/api/proxies]")
res.Proxies = metric.GetAllProxyMetrics()
- c.JSON(200, res)
+ buf, _ = json.Marshal(res)
+ w.Write(buf)
}
diff --git a/src/frp/models/server/dashboard_view.go b/src/frp/models/server/dashboard_view.go
new file mode 100644
index 00000000..e1dd9404
--- /dev/null
+++ b/src/frp/models/server/dashboard_view.go
@@ -0,0 +1,35 @@
+// Copyright 2016 fatedier, fatedier@gmail.com
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package server
+
+import (
+ "html/template"
+ "net/http"
+ "path"
+
+ "frp/models/metric"
+ "frp/utils/log"
+)
+
+func viewDashboard(w http.ResponseWriter, r *http.Request) {
+ metrics := metric.GetAllProxyMetrics()
+ t := template.Must(template.New("index.html").Delims("<<<", ">>>").ParseFiles(path.Join(AssetsDir, "index.html")))
+
+ err := t.Execute(w, metrics)
+ if err != nil {
+ log.Warn("parse template file [index.html] error: %v", err)
+ http.Error(w, "parse template file error", http.StatusInternalServerError)
+ }
+}
diff --git a/src/frp/models/server/server.go b/src/frp/models/server/server.go
index 4a84dca5..5713cc19 100644
--- a/src/frp/models/server/server.go
+++ b/src/frp/models/server/server.go
@@ -63,7 +63,13 @@ func NewProxyServerFromCtlMsg(req *msg.ControlReq) (p *ProxyServer) {
p.PrivilegeMode = req.PrivilegeMode
p.PrivilegeToken = PrivilegeToken
p.BindAddr = BindAddr
- p.ListenPort = req.RemotePort
+ if p.Type == "tcp" {
+ p.ListenPort = req.RemotePort
+ } else if p.Type == "http" {
+ p.ListenPort = VhostHttpPort
+ } else if p.Type == "https" {
+ p.ListenPort = VhostHttpsPort
+ }
p.CustomDomains = req.CustomDomains
p.HostHeaderRewrite = req.HostHeaderRewrite
return
diff --git a/src/frp/utils/vhost/vhost.go b/src/frp/utils/vhost/vhost.go
index 18c6d5dd..7de2d101 100644
--- a/src/frp/utils/vhost/vhost.go
+++ b/src/frp/utils/vhost/vhost.go
@@ -131,7 +131,6 @@ func (l *Listener) Accept() (*conn.Conn, error) {
// if rewriteFunc is exist and rewriteHost is set
// rewrite http requests with a modified host header
if l.mux.rewriteFunc != nil && l.rewriteHost != "" {
- fmt.Printf("host rewrite: %s\n", l.rewriteHost)
sConn, err := l.mux.rewriteFunc(conn, l.rewriteHost)
if err != nil {
return nil, fmt.Errorf("http host header rewrite failed")