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index.go
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index.go
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package main
import (
"fmt"
"net/http"
"net/url"
"io/ioutil"
"io"
"strings"
"strconv"
"bytes"
"compress/gzip"
"database/sql"
"bufio"
"time"
"math/rand"
_ "github.com/go-sql-driver/mysql"
)
const zhost string = `https://v2ray.14065567.now.sh/`
func Handler(w http.ResponseWriter, r *http.Request) {
var (
realurl =``
realhost =``
uid = 0
)
switch r.URL.Path{
case `/manager/`:
db, err := sql.Open("mysql","zhujq:Juju1234@tcp(35.230.121.24:3316)/zeit")
if err != nil {
fmt.Fprintf(w, err.Error() )
return
}
defer db.Close()
err = db.Ping()
if err != nil {
fmt.Fprintf(w, err.Error() )
return
}
rows, err := db.Query("select * from visits where to_days(visitime) = to_days(now()) order by id desc;")
if err != nil {
fmt.Println(err.Error() )
return
}
defer rows.Close()
fmt.Fprintf(w,`%s`,`<html><head></head><body><table width="100%" border="1" align="center" font-size:9px color="#660066" style="word-break:break-all; word-wrap:break-all;"><tr><th width="2%">id</th><th width="10%">datetime</th><th idth="3%">Method</th><th width="20%">URL</th><th width="30%">Req_Head</th><th width="5%">RSP_STATUS</th><th width="25%">RSP_HEAD</th><th width="5%%">RSP_LENGTH</th></tr>`)
var (
visitid = 0
visitime =``
visitmethod =``
visiturl =``
visithead =``
rsp_status =``
rsp_head =``
rsp_length = 0
)
for rows.Next() {
if err = rows.Scan(&visitid,&visitime,&visitmethod,&visiturl,&visithead,&rsp_status,&rsp_head,&rsp_length); err != nil {
fmt.Println(err.Error() )
}
fmt.Fprintf(w,`<tr><td width="2%%">%d</td><td width="10%%">%s</td><td width="3%%">%s</td><td width="20%%">%s</td><td width="30%%">%s</td><td width="5%%">%s</td><td width="25%%">%s</td><td width="5%%">%d</td></tr>`,visitid,visitime,visitmethod,visiturl,visithead,rsp_status,rsp_head,rsp_length)
}
if err = rows.Err(); err != nil {
fmt.Println(err.Error() )
}
fmt.Fprintf(w,"%s","</table></body>")
return
case `/google/`: //google入口
realurl = zhost + `www.google.com/`
realhost = `www.google.com`
http.Redirect(w, r, realurl, 307)
return
case `/youtube/`: //youtube入口
realurl = zhost + `www.youtube.com/`
realhost = `www.youtube.com`
http.Redirect(w, r, realurl, 307)
return
case `/watch`: //youtube入口
// realurl = `https://www.youtube.com`+ r.URL.String()
// realhost = `www.youtube.com`
str := r.URL.String()
videoid := string([]byte(str)[ strings.LastIndex(str,`=`):])
realurl = `https://www.youtube.com/get_video_info?video_id` + videoid
realhost = `www.youtube.com`
case `/favicon.ico`:
realurl = `https://www.google.com/favicon.ico`
realhost = `www.google.com`
case `/search`:
realurl = `https://www.google.com`+ r.URL.String()
realhost = `www.google.com`
default: // 经google、youtube入口后重新返回的网址和直接带上的域名的处理，分离出真实主机名称
var str string
str = r.URL.String()
str = strings.TrimLeft(str,`/`)
realhost = string([]byte(str)[0:strings.Index(str,`/`)]) //去掉首位的/后截取host
if realhost == `signin` { //google的signin目录暂时无法带上accounts.google.com
realhost = `accounts.google.com`
str = realhost + `/` + str
}
if realhost ==`xjs` || realhost ==`logos` { //google的signin目录暂时无法带上www.google.com
realhost = `www.google.com`
str = realhost + `/` + str
}
if realhost == `youtubei` || realhost == `yts` || realhost == `results` { //youtube的youtubei yts results目录暂时无法带上www.youtube.com
realhost = `www.youtube.com`
str = realhost + `/` + str
}
if realhost == ``{
fmt.Fprintf(w, `Failed to handle RequestUrl:`+str+`\r\n`)
return
}
if r.URL.Scheme == ``{
r.URL.Scheme = `https`
}
realurl = r.URL.Scheme + `://` + str
}
if toredirect(realhost){ //判断如果是国内域名，则指示重定向
// fmt.Println(r.Method,` URL:`+url,` LocalRealHost:`,realhost)
http.Redirect(w, r, realurl, 307)
return
}
//url处理
if strings.Count(realurl,`//`) > 1{
n := strings.LastIndex(realurl,`//`)
realurl = string([]byte(realurl)[n:])
realurl = `https:` + realurl
}
client := &http.Client{}
req, err := http.NewRequest(r.Method, realurl, nil)
if err != nil {
panic(err)
}
req.Header = r.Header //删除请求头压缩选项，否则无法对返回的文本的链接内容进行处理,20190625 调用compress/gzip进行压缩和解压缩,且只用gzip
if strings.Contains(string(req.Header.Get(`Accept-Encoding`)),`gzip`){
req.Header.Set(`Accept-Encoding`,`gzip`)
}else {
req.Header.Del(`Accept-Encoding`)
}
strreferer := string(req.Header.Get("Referer")) //修改referer
if strings.Contains(strreferer,`v2ray.14065567.now.sh/`){
strreferer = strings.Replace(strreferer,`v2ray.14065567.now.sh/`,``,-1)
req.Header.Set(`Referer`,strreferer)
}
req.Header.Set(`Host`,realhost) // 设置请求头的真实host
strorigin := string(req.Header.Get("Origin"))
if strings.Contains(strorigin,`v2ray.14065567.now.sh`){ //设置head的origin
req.Header.Set(`Origin`,`https://`+ realhost + `/`)
}
//删除zeit添加的头域
req.Header.Del(`X-Forwarded-For`)
req.Header.Del(`X-Zeit-Co-Forwarded-For`)
req.Header.Del(`X-Real-Ip`)
req.Header.Del(`X-Now-Trace`)
req.Header.Del(`X-Forwarded-Host`)
req.Header.Del(`X-Now-Deployment-Url`)
req.Header.Del(`X-Forwarded-Proto`)
req.Header.Del(`X-Now-Id`)
req.Body = r.Body //加入POST时的Body
req.Form = r.Form
req.PostForm = r.PostForm
req.MultipartForm = r.MultipartForm
db, err := sql.Open("mysql","zhujq:Juju1234@tcp(35.230.121.24:3316)/zeit")
err = db.Ping()
if err != nil{
fmt.Println(err.Error() )
}
//读取或设置cookie中的uid,并根据访问URL设置req的cookies
localcookie, err := r.Cookie("raynowid")
if err == http.ErrNoCookie { //没有带cookie上来时重新分配一个，req时不带cookie
uid = RandomNumber()
req.Header.Del(`Cookie`)
}else{
uid, _ = strconv.Atoi(localcookie.Value) //根据uid和url cookie表的匹配关系设置req的cookie
req.Header.Del(`Cookie`)
rows, err := db.Query(`select name,value,domain,path from cookies where uid =`+ strconv.Itoa(uid)+`;`)
if err != nil {
fmt.Println(err.Error() )
}
defer rows.Close()
var (
cookiename = ``
cookievalue =``
cookiedomain =``
cookiepath =``
)
u, err := url.Parse(realurl)
for rows.Next() {
if err = rows.Scan(&cookiename,&cookievalue,&cookiedomain,&cookiepath); err != nil {
fmt.Println(err.Error() )
}else{
cookiedomain = strings.TrimPrefix(cookiedomain,`.`) //去掉首位的.
if strings.HasSuffix(u.Host,cookiedomain) && strings.HasPrefix(u.Path,cookiepath) {
req.AddCookie(&http.Cookie{
Name: cookiename,
Value: cookievalue,
})
}
}
}
if err = rows.Err(); err != nil {
fmt.Println(err.Error() )
}
}
fmt.Println(r.Method,` URL:`+realurl,` uid:`+strconv.Itoa(uid)) //记录访问记录
resp, err := client.Do(req)
if err != nil {
panic(err)
}
fmt.Println(`resp len,status,type,Enc:`,strconv.FormatInt(resp.ContentLength,10),resp.Status,resp.Header.Get(`content-type`),resp.Header.Get(`Content-Encoding`)) //记录访问记录
// s, _ := ioutil.ReadAll(r.Body)
// fmt.Println(`Request Body:`)
// fmt.Println(s)
resp.Header.Set(`Access-Control-Allow-Origin`,`*`) //跨域名可用，防止浏览器阻止
reqhead := ``
for k, _ := range r.Header {
reqhead += k
reqhead += `:`
reqhead += r.Header.Get(k)
reqhead += `<br>`
}
reqhead = strings.Replace(reqhead,`"`,`\"`,-1) //存入mysql时要把“转义
rsphead := ``
for k, _ := range resp.Header {
rsphead += k
rsphead += `:`
rsphead += resp.Header.Get(k)
rsphead += `<br>`
}
rsphead = strings.Replace(rsphead,`"`,`\"`,-1)
var insertsql = `insert into visits(method,url,head,rsp_status,rsp_head,rsp_legnth) values("` + r.Method +`","` + realurl +`","`+ reqhead +`","` + resp.Status +`","` + rsphead + `","` + strconv.FormatInt(resp.ContentLength,10)+`");`
// fmt.Println(insertsql)
_,err = db.Exec(insertsql)
if err != nil{
fmt.Println(err.Error() )
}
defer db.Close()
defer resp.Body.Close()
for k, _ := range resp.Header{
if k == `Set-Cookie`{ //对返回的cookie，存入数据库，不返回给浏览器
for _, v := range resp.Cookies() {
var insertsql = `insert into cookies(uid,name,value,domain,path) values("`+strconv.Itoa(uid) +`","` + v.Name +`","`+ v.Value +`","`+ v.Domain +`","`+ v.Path +`");`
_,err := db.Exec(insertsql)
if err != nil{
fmt.Println(err.Error() )
}
}
}else {
w.Header().Set(k,resp.Header.Get(k))
}
}
http.SetCookie(w, &http.Cookie{
Name: "raynowid",
Value: strconv.Itoa(uid),
Domain: "v2ray.14065567.now.sh",
Path: "/",
})
if strings.Contains(string(resp.Header.Get(`content-type`)),`text`) || strings.Contains(string(resp.Header.Get(`content-type`)),`json`){ //返回文本类型时的处理
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
panic(err)
}
if resp.StatusCode == 200 && strings.Contains(string(resp.Header.Get(`content-type`)),`text/html`){ //当返回200和html文本类型时进行链接处理
if len(body) == 0 {
fmt.Println(`resp is empty`)
return
}
if resp.Header.Get(`Content-Encoding`) == `gzip`{
body,err = gzipdecode(body)
if err != nil {
panic(err)
}
}
modifiedrsp := []byte{}
tomodifystr := ``
for _,v := range body {
if string(v) == `<` {
if len(tomodifystr) >0 {
tomodifystr = modifylink(tomodifystr,realhost)
for _,vv := range tomodifystr {
modifiedrsp = append(modifiedrsp,byte(vv))
}
tomodifystr = ``
}
tomodifystr += string(v)
}else if string(v) == `>` {
tomodifystr += string(v)
tomodifystr = modifylink(tomodifystr,realhost)
for _,vv := range tomodifystr {
modifiedrsp = append(modifiedrsp,byte(vv))
}
tomodifystr = ``
}else{
tomodifystr += string(v)
}
}
body = modifiedrsp
if resp.Header.Get("Content-Encoding") == "gzip" { //如果resp指示压缩，还需要对解开的处理后的内容重新压缩
body,err = gzipencode(body)
if err != nil {
panic(err)
}
}
}
if resp.StatusCode == 200 && (strings.Contains(string(resp.Header.Get(`content-type`)),`text/javascript`) || strings.Contains(string(resp.Header.Get(`content-type`)),`json`)){ //返回200的javascript和json处理
if resp.Header.Get(`Content-Encoding`) == `gzip`{
body,err = gzipdecode(body)
if err != nil {
panic(err)
}
}
reader := bytes.NewReader(body)
r := bufio.NewReader(reader)
modifiedrsp := []byte{}
tomodifystr := ``
for {
slice, err := r.ReadBytes('\n') // '\n'表示按行读取。 ','表示按英文逗号读取。
tomodifystr = string(slice)
tomodifystr = modifylink(tomodifystr,realhost)
for _,vv := range tomodifystr {
modifiedrsp = append(modifiedrsp,byte(vv))
}
if err == io.EOF { // 如果读取到文件末尾
break
}
}
body = modifiedrsp
if resp.Header.Get("Content-Encoding") == "gzip" { //如果resp指示压缩，还需要对解开的处理后的内容重新压缩
body,err = gzipencode(body)
if err != nil {
panic(err)
}
}
}
w.Write([]byte(body))
}else if strings.Contains(string(resp.Header.Get(`content-type`)),`application/x-www-form-urlencoded`) {
body, _ := ioutil.ReadAll(resp.Body)
/* if resp.Header.Get(`Content-Encoding`) == `gzip`{
body,err = gzipdecode(body)
if err != nil {
panic(err)
}
}
fmt.Println (len(body))
answer, err := url.ParseQuery(string(body))
if err != nil{
fmt.Println(err.Error() )
}
for k,v:= range answer {
fmt.Fprintf(w,"k=%s\r\n",k)
fmt.Fprintf(w,"v=%s\r\n",v[0])
}
*/
w.Write([]byte(body))
} else{ //返回非文本类型，用stream模式处理
reader := bufio.NewReader(resp.Body)
caches := make([]byte, 10240)
for {
_, err :=reader.Read(caches)
if err != nil {
if err == io.EOF {
break
}else{
panic(err)
}
}
w.Write(caches)
}
}
}
func modifylink(s string,realhost string) string{
if s == ""{
return s
}
tempstr := s
tempstr = strings.Replace(tempstr,`href="https://`, `href="` + zhost, -1) //先改https，否则会重复改
tempstr = strings.Replace(tempstr,`href= "https://`,`href="` + zhost,-1) //youtube上发现有href=空格情况
tempstr = strings.Replace(tempstr,`href="http://`,`href="` + zhost,-1)
tempstr = strings.Replace(tempstr,`href="//`,`href="` +zhost,-1) // href="// 后是绝对路径
tempstr = strings.Replace(tempstr,`href="/`,`href="` + zhost + realhost + "/",-1) // href="/ 后是相对路径
tempstr = strings.Replace(tempstr,`<a href="https://`,`<a href="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<a href="http://`,`<a href="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<a href="//`,`<a href="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<a href="/`,`<a href="` + zhost + realhost + "/",-1)
tempstr = strings.Replace(tempstr,`action="https://`,`action="` + zhost,-1)
tempstr = strings.Replace(tempstr,`action="http://`,`action="` + zhost,-1)
tempstr = strings.Replace(tempstr,`action="//`,`action="` + zhost,-1)
tempstr = strings.Replace(tempstr,`action="/`,`action="` + zhost + realhost + "/",-1)
tempstr = strings.Replace(tempstr,`location='/`,`location='` + zhost + realhost + "/",-1)
tempstr = strings.Replace(tempstr,`src="https://`,`src="` + zhost,-1)
tempstr = strings.Replace(tempstr,`src="http://`,`src="` + zhost,-1)
tempstr = strings.Replace(tempstr,`src="//`,`src="` + zhost,-1)
tempstr = strings.Replace(tempstr,`src="/`,`src="` +zhost + realhost+ "/",-1)
tempstr = strings.Replace(tempstr,`srcset="https://`,`srcset="` + zhost,-1)
tempstr = strings.Replace(tempstr,`srcset="http://`,`srcset="` + zhost,-1)
tempstr = strings.Replace(tempstr,`srcset="//`,`srcset="` + zhost,-1)
tempstr = strings.Replace(tempstr,`srcset="/`,`srcset="` + zhost + realhost+ "/",-1)
tempstr = strings.Replace(tempstr,`<meta content="https://`,`<meta content="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<meta content="http://`,`<meta content="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<meta content="//`,`<meta content="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<meta content="/`,`<meta content="` + zhost + realhost + "/",-1)
tempstr = strings.Replace(tempstr,`<iframe src="https://`,`<iframe src="` + zhost,-1)
tempstr = strings.Replace(tempstr,`<iframe src="http://`,`<iframe src="` + zhost,-1)
tempstr = strings.Replace(tempstr,`itemtype="https://`,`itemtype="` + zhost,-1)
tempstr = strings.Replace(tempstr,`itemtype="http://`,`itemtype="` + zhost,-1)
//script的url修正
tempstr = strings.Replace(tempstr,`url(https://`,`url(` + zhost, -1)
tempstr = strings.Replace(tempstr,`url('https://`,`url('` +zhost, -1)
tempstr = strings.Replace(tempstr,`url('//`,`url('` +zhost, -1)
tempstr = strings.Replace(tempstr,`url("//`,`url("` +zhost, -1)
temp := strings.Replace(tempstr,`url(//`,`url(` +zhost, -1)
if len(temp) != len(tempstr){
tempstr = temp
}else{
tempstr = strings.Replace(tempstr,`url(/`,`url(` +zhost + realhost + `/`, -1)
}
tempstr = strings.Replace(tempstr,`url=https://`,`url=` +zhost,-1)
tempstr = strings.Replace(tempstr,`s='/images`,`s='` +zhost + realhost + `/images`, -1)
tempstr = strings.Replace(tempstr,`http:\/\/`,`https:\/\/` +`v2ray.14065567.now.sh` + `\/`,-1)
tempstr = strings.Replace(tempstr,`https:\/\/`,`https:\/\/` +`v2ray.14065567.now.sh` + `\/`,-1)
tempstr = strings.Replace(tempstr,`"url":"https://`,`"url":"` +zhost ,-1)
tempstr = strings.Replace(tempstr,`"url":"/`,`"url":"` +zhost + realhost + `/`, -1)
tempstr = strings.Replace(tempstr,`='/`,`='` +zhost + realhost + `/`, -1)
tempstr = strings.Replace(tempstr,`value="https://`,`value="` + zhost,-1)
tempstr = strings.Replace(tempstr,`="//`,`="` +zhost , -1)
tempstr = strings.Replace(tempstr,`="/`,`="` +zhost + realhost + `/`, -1)
temp = strings.Replace(tempstr,`("//`,`("` +zhost, -1)
if len(temp) != len(tempstr){
tempstr = temp
}else{
tempstr = strings.Replace(tempstr,`("/`,`("` +zhost + realhost + `/`, -1)
}
tempstr = strings.Replace(tempstr,`v2ray.14065567.now.sh/v2ray.14065567.now.sh`,`v2ray.14065567.now.sh`, -1) //有可能重复修改
tempstr = strings.Replace(tempstr,`v2ray.14065567.now.sh/https://v2ray.14065567.now.sh`,`v2ray.14065567.now.sh`, -1)
tempstr = strings.Replace(tempstr,realhost + `//` + realhost ,realhost, -1)
return tempstr
}
func toredirect(s string) bool{
if strings.HasSuffix(s, ".cn"){
return true
}
localurls := []string{"baidu","taobao","sina","163.com","tmall","jd.com","sohu","qq.com","ifeng.com","qunae.com","toutiao.com","alipay.com","ctrip.com","weibo.com","zhihu","csdn.net","58.com","youku","iyiyi.com","bilibili"}
for _, localurl := range localurls {
if strings.Contains(s,localurl){
return true
}
}
return false
}
func gzipencode(in []byte) ([]byte, error) {
var (
buffer bytes.Buffer
out []byte
err error
)
writer := gzip.NewWriter(&buffer)
_, err = writer.Write(in)
if err != nil {
writer.Close()
return out, err
}
err = writer.Close()
if err != nil {
return out, err
}
return buffer.Bytes(), nil
}
func gzipdecode(in []byte) ([]byte, error) {
reader, err := gzip.NewReader(bytes.NewReader(in))
if err != nil {
var out []byte
return out, err
}
defer reader.Close()
return ioutil.ReadAll(reader)
}
func RandomNumber() int {
r := rand.New(rand.NewSource(time.Now().Unix()))
num := r.Intn(10000)
return num
}