Signed-off-by: arraykeys@gmail.com <arraykeys@gmail.com>

# Conflicts:
#	README.md

Signed-off-by: arraykeys@gmail.com <arraykeys@gmail.com>

.gitignore

@@ -0,0 +1,7 @@
+proxy
+*.exe
+*.exe~
+.*
+release-*
+proxy.crt
+proxy.key

CHANGELOG

@@ -0,0 +1,39 @@
+proxy更新日志
+
+v3.1
+1.优化了内网穿透功能,bridge,client和server只需要启动一个即可。  
+  server端启动的时候可以指定client端要暴露的一个或者多个端口。  
+2.修复了重复解析命令行参数的问题。  
+3.手册增加了微信接口本地开发的示例。  
+4.增加了配置文件使用说明.  
+
+v3.0
+1.此次更新不兼容2.x版本,重构了全部代码,架构更合理,利于功能模块的增加与维护。
+2.增加了代理死循环检查,增强了安全性。
+3.增加了反向代理模式(即:内网穿透),支持TCP和UDP两种协议,可以把任何局域网的机器A所在网络的任何端。
+  暴露到任何局域网的机器B的本地端口或暴露到任何公网VPS上。
+4.正向代理增加了UDP模式支持。
+
+
+v2.2
+1.增加了强制使用上级代理参数always.可以使所有流量都走上级代理。
+2.增加了定时检查网络是否正常,可以在本地网络不稳定的时候修复连接池状态,提升代理访问体验。
+3.http代理增加了对ipv6地址的支持。
+
+v2.1
+1.增加了http basic验证功能,可以对http代理协议设置basic验证,用户名和密码支持来自文件或者命令行。
+2.优化了域名检查方法，避免空连接的出现。
+3.修复了连接上级代理超时参数传递错误导致超时过大的问题。
+4.增加了连接池状态监测,如果上级代理或者网络出现问题,会及时重新初始化连接池,防止大量无效连接,降低浏览体验。
+5.增加了对系统kill信号的捕获,可以在收到系统kill信号之后执行清理释放连接的操作.避免出现大量CLOSE_WAIT。
+
+v2.0
+1.增加了连接池功能,大幅提高了通过上级代理访问的速度。
+2.HTTP代理模式,优化了请求URL的获取逻辑,可以支持:http,https,websocke。
+3.增加了TCP代理模式,支持是否加密通讯。
+4.优化了链接关闭逻辑,避免出现大量CLOSE_WAIT。
+5.增加了黑白名单机制,更自由快速的访问。
+6.优化了网站Block机制检测,判断更准确。
+
+v1.0
+1.始发版本,可以代理http,https。

LICENSE

@@ -0,0 +1,674 @@
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+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {one line to give the program's name and a brief idea of what it does.}
+    Copyright (C) {year}  {name of author}
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    {project}  Copyright (C) {year}  {fullname}
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.md

@@ -1,57 +1,349 @@
-# goproxy
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/logo.jpg?raw=true" width="200"/>  
-# 快速使用:  
+Proxy是golang实现的高性能http,https,websocket,tcp,udp代理服务器,支持正向代理和内网穿透.  
+  
+---  
+  
+[![stable](https://img.shields.io/badge/stable-stable-green.svg)](https://github.com/snail007/goproxy/) [![license](https://img.shields.io/github/license/snail007/goproxy.svg?style=plastic)]() [![download_count](https://img.shields.io/github/downloads/snail007/goproxy/total.svg?style=plastic)](https://github.com/snail007/goproxy/releases) [![download](https://img.shields.io/github/release/snail007/goproxy.svg?style=plastic)](https://github.com/snail007/goproxy/releases)  
+  
+### Features  
+- 链式代理,程序本身可以作为一级代理,如果设置了上级代理那么可以作为二级代理,乃至N级代理.  
+- 通讯加密,如果程序不是一级代理,而且上级代理也是本程序,那么可以加密和上级代理之间的通讯,采用底层tls高强度加密,安全无特征.  
+- 智能HTTP代理,会自动判断访问的网站是否屏蔽,如果被屏蔽那么就会使用上级代理(前提是配置了上级代理)访问网站;如果访问的网站没有被屏蔽,为了加速访问,代理会直接访问网站,不使用上级代理.  
+- 域名黑白名单，更加自由的控制网站的访问方式。  
+- 跨平台性,无论你是widows,linux,还是mac,甚至是树莓派,都可以很好的运行proxy.  
+- 多协议支持,支持HTTP,TCP,UDP,Websocket代理.  
+- 支持内网穿透,协议支持TCP和UDP.  
+  
+### Why need these?  
+- 当由于安全因素或者限制,我们不能顺畅的访问我们在其它地方的服务,我们可以通过多个相连的proxy节点建立起一个安全的隧道,顺畅的访问我们的服务.  
+- 微信接口本地开发,方便调试.  
+- 远程访问内网机器.  
+- 和小伙伴一起玩局域网游戏.  
+- 以前只能在局域网玩的,现在可以在任何地方玩.  
+- 替代圣剑内网通，显IP内网通，花生壳之类的工具.
+- ...  
+
+### 手册目录  
+本页是最新v3.1手册,其他版本手册请点击下面链接查看.  
+- [v3.0手册](https://github.com/snail007/goproxy/tree/v3.0)
+- [v2.x手册](https://github.com/snail007/goproxy/tree/v2.2)
+
+### Fast Start  
 提示:所有操作需要root权限.  
-
+**0.如果你的VPS是linux64位的系统,那么只需要执行下面一句,就可以完成自动安装和配置.**  
-0.如果你的VPS是linux64位的系统,那么只需要执行下面一句,就可以完成自动安装和配置.  
+```shell  
-#wget https://github.com/snail007/goproxy/blob/master/install_auto.sh -O - | sh  
+curl -L https://raw.githubusercontent.com/snail007/goproxy/master/install_auto.sh | bash  
-
+```  
-如果你的vps不是linux64位系统,请按照下面的半自动步骤安装:  
+安装完成,配置目录是/etc/proxy,更详细的使用方法参考下面的进一步了解.  
-1.登录你的VPS,下载守护进程monexec,选择合适你的版本,vps一般选择"linux_amd64.tar.gz"的即可.     
+如果安装失败或者你的vps不是linux64位系统,请按照下面的半自动步骤安装:  
-下载地址:https://github.com/reddec/monexec/releases   
+  
+**1.登录你的VPS,下载守护进程monexec,选择合适你的版本,vps一般选择"linux_amd64.tar.gz"的即可.**  
+下载地址:https://github.com/reddec/monexec/releases  
 比如下载到/root/proxy/  
 执行:  
-#mkdir /root/proxy/  
+```shell  
-#cd /root/proxy/  
+mkdir /root/proxy/  
-#wget https://github.com/reddec/monexec/releases/download/v0.1.1/monexec_0.1.1_linux_amd64.tar.gz   
+cd /root/proxy/  
-2.下载proxy  
+wget https://github.com/reddec/monexec/releases/download/v0.1.1/monexec_0.1.1_linux_amd64.tar.gz  
-下载地址:https://github.com/snail007/goproxy/releases
+```  
-#cd /root/proxy/  
+**2.下载proxy**  
-#wget https://github.com/snail007/goproxy/releases/download/v2.0/proxy-linux-amd64.tar.gz  
+下载地址:https://github.com/snail007/goproxy/releases  
-3.下载自动安装脚本
+```shell  
-#cd /root/proxy/
+cd /root/proxy/  
-#wget https://github.com/snail007/goproxy/blob/master/install.sh  
+wget https://github.com/snail007/goproxy/releases/download/v3.1/proxy-linux-amd64.tar.gz  
-#chmod +x install.sh
+```  
-#./install.sh
+**3.下载自动安装脚本**  
+```shell  
+cd /root/proxy/  
+wget https://raw.githubusercontent.com/snail007/goproxy/master/install.sh  
+chmod +x install.sh  
+./install.sh  
+```  
+  
+## 使用教程  
+  
+**提示**  
+接下来的教程,默认系统是linux,程序是proxy；所有操作需要root权限；  
+如果你的是windows,请使用windows版本的proxy.exe即可.  
+  
+**使用配置文件**  
+接下来的教程都是通过命令行参数介绍使用方法,也可以通过读取配置文件获取参数.  
+具体格式是通过@符号指定配置文件,例如:./proxy @configfile.txt  
+configfile.txt里面的格式是,第一行是子命令名称,第二行开始一行一个:参数的长格式=参数值,前后不能有空格和双引号.  
+参数的长格式都是--开头的,短格式参数都是-开头,如果你不知道某个短格式参数对应长格式参数,查看帮助命令即可.  
+比如configfile.txt内容如下:
+```shell
+http
+--local-type=tcp
+--local=:33080
+```
+### 0.生成加密通讯需要的证书文件  
+  
+http,tcp,udp代理过程会和上级通讯,为了安全我们采用加密通讯,当然可以选择不加密通信通讯,本教程所有和上级通讯都采用加密,需要证书文件.  
+在linux上并安装了openssl命令，可以直接通过下面的命令生成证书和key文件.  
+`./proxy keygen`  
+默认会在当前程序目录下面生成证书文件proxy.crt和key文件proxy.key。  
+  
+### 1.HTTP代理  
+**1.1.普通HTTP代理**  
+`./proxy http -t tcp -p "0.0.0.0:38080"`  
+  
+**1.2.普通二级HTTP代理**  
+使用本地端口8090,假设上级HTTP代理是`22.22.22.22:8080`  
+`./proxy http -t tcp -p "0.0.0.0:8090" -T tcp -P "22.22.22.22:8080" `  
+默认开启了连接池,如果为了网络情况很好,-L可以关闭连接池,0就是连接池大小,0为关闭.  
+`./proxy http -t tcp -p "0.0.0.0:8090" -T tcp -P "22.22.22.22:8080" -L 0`  
+我们还可以指定网站域名的黑白名单文件,一行一个域名,怕匹配规则是最右批评匹配,比如:baidu.com,匹配的是*.*.baidu.com,黑名单的域名域名直接走上级代理,白名单的域名不走上级代理.  
+`./proxy http -p "0.0.0.0:8090" -T tcp -P "22.22.22.22:8080"  -b blocked.txt -d direct.txt`  
+  
+**1.3.HTTP二级代理(加密)**  
+一级HTTP代理(VPS,IP:22.22.22.22)  
+`./proxy http -t tls -p ":38080" -C proxy.crt -K proxy.key`  
+  
+二级HTTP代理(本地Linux)  
+`./proxy http -t tcp -p ":8080" -T tls -P "22.22.22.22:38080" -C proxy.crt -K proxy.key`  
+那么访问本地的8080端口就是访问VPS上面的代理端口38080.  
+  
+二级HTTP代理(本地windows)  
+`./proxy.exe http -t tcp -p ":8080" -T tls -P "22.22.22.22:38080" -C proxy.crt -K proxy.key`  
+然后设置你的windos系统中，需要通过代理上网的程序的代理为http模式，地址为：127.0.0.1，端口为：8080,程序即可通过加密通道通过vps上网。  
+  
+**1.4.HTTP三级代理(加密)**  
+一级HTTP代理VPS_01,IP:22.22.22.22  
+`./proxy http -t tls -p ":38080" -C proxy.crt -K proxy.key`  
+二级HTTP代理VPS_02,IP:33.33.33.33  
+`./proxy http -t tls -p ":28080" -T tls -P "22.22.22.22:38080" -C proxy.crt -K proxy.key`  
+三级HTTP代理(本地)  
+`./proxy http -t tcp -p ":8080" -T tls -P "33.33.33.33:28080" -C proxy.crt -K proxy.key`  
+那么访问本地的8080端口就是访问一级HTTP代理上面的代理端口38080.  
+  
+**1.5.Basic认证**  
+对于代理HTTP协议我们可以basic进行Basic认证,认证的用户名和密码可以在命令行指定  
+`./proxy http -t tcp -p ":33080" -a "user1:pass1" -a "user2:pass2"`  
+多个用户,重复-a参数即可.  
+也可以放在文件中,格式是一行一个"用户名:密码",然后用-F指定.  
+`./proxy http -t tcp -p ":33080" -F auth-file.txt`  
+如果没有-a或-F参数,就是关闭Basic认证.  
+  
+**1.6.HTTP代理流量强制走上级HTTP代理**  
+默认情况下,proxy会智能判断一个网站域名是否无法访问,如果无法访问才走上级HTTP代理.通过--always可以使全部HTTP代理流量强制走上级HTTP代理.  
+`./proxy http --always -t tls -p ":28080" -T tls -P "22.22.22.22:38080" -C proxy.crt -K proxy.key`  
+  
+**1.7.查看帮助**  
+`./proxy help http`  
 
-# 进一步了解：  
+  
-1、作为普通一级代理。
+### 2.TCP代理  
-默认监听0.0.0.0:33080端口，可以使用-p修改端口，-i修改绑定ip。  
+  
-默认情况  
+**2.1.普通一级TCP代理**  
-./proxy  
+本地执行:  
-指定ip和端口  
+`./proxy tcp -p ":33080" -T tcp -P "192.168.22.33:22" -L 0`  
-./proxy  -i 192.168.1.100 -p 60080  
+那么访问本地33080端口就是访问192.168.22.33的22端口.  
+  
+**2.2.普通二级TCP代理**  
+VPS(IP:22.22.22.33)执行:  
+`./proxy tcp -p ":33080" -T tcp -P "127.0.0.1:8080" -L 0`  
+本地执行:  
+`./proxy tcp -p ":23080" -T tcp -P "22.22.22.33:33080"`  
+那么访问本地23080端口就是访问22.22.22.33的8080端口.  
+  
+**2.3.普通三级TCP代理**  
+一级TCP代理VPS_01,IP:22.22.22.22  
+`./proxy tcp -p ":38080" -T tcp -P "66.66.66.66:8080" -L 0`  
+二级TCP代理VPS_02,IP:33.33.33.33  
+`./proxy tcp -p ":28080" -T tcp -P "22.22.22.22:38080"`  
+三级TCP代理(本地)  
+`./proxy tcp -p ":8080" -T tcp -P "33.33.33.33:28080"`  
+那么访问本地8080端口就是通过加密TCP隧道访问66.66.66.66的8080端口.  
+  
+**2.4.加密二级TCP代理**  
+VPS(IP:22.22.22.33)执行:  
+`./proxy tcp --tls -p ":33080" -T tcp -P "127.0.0.1:8080" -L 0 -C proxy.crt -K proxy.key`  
+本地执行:  
+`./proxy tcp -p ":23080" -T tls -P "22.22.22.33:33080" -C proxy.crt -K proxy.key`  
+那么访问本地23080端口就是通过加密TCP隧道访问22.22.22.33的8080端口.  
+  
+**2.5.加密三级TCP代理**  
+一级TCP代理VPS_01,IP:22.22.22.22  
+`./proxy tcp --tls -p ":38080" -T tcp -P "66.66.66.66:8080" -C proxy.crt -K proxy.key`  
+二级TCP代理VPS_02,IP:33.33.33.33  
+`./proxy tcp --tls -p ":28080" -T tls -P "22.22.22.22:38080" -C proxy.crt -K proxy.key`  
+三级TCP代理(本地)  
+`./proxy tcp -p ":8080" -T tls -P "33.33.33.33:28080" -C proxy.crt -K proxy.key`  
+那么访问本地8080端口就是通过加密TCP隧道访问66.66.66.66的8080端口.  
+  
+**2.6.查看帮助**  
+`./proxy help tcp`  
+  
+### 3.UDP代理  
+  
+**3.1.普通一级UDP代理**  
+本地执行:  
+`./proxy udp -p ":5353" -T udp -P "8.8.8.8:53"`  
+那么访问本地UDP:5353端口就是访问8.8.8.8的UDP:53端口.  
+  
+**3.2.普通二级UDP代理**  
+VPS(IP:22.22.22.33)执行:  
+`./proxy tcp -p ":33080" -T udp -P "8.8.8.8:53"`  
+本地执行:  
+`./proxy udp -p ":5353" -T tcp -P "22.22.22.33:33080"`  
+那么访问本地UDP:5353端口就是通过TCP隧道,通过VPS访问8.8.8.8的UDP:53端口.  
+  
+**3.3.普通三级UDP代理**  
+一级TCP代理VPS_01,IP:22.22.22.22  
+`./proxy tcp -p ":38080" -T udp -P "8.8.8.8:53"`  
+二级TCP代理VPS_02,IP:33.33.33.33  
+`./proxy tcp -p ":28080" -T tcp -P "22.22.22.22:38080"`  
+三级TCP代理(本地)  
+`./proxy udp -p ":5353" -T tcp -P "33.33.33.33:28080"`  
+那么访问本地5353端口就是通过TCP隧道,通过VPS访问8.8.8.8的53端口.  
+  
+**3.4.加密二级UDP代理**  
+VPS(IP:22.22.22.33)执行:  
+`./proxy tcp --tls -p ":33080" -T udp -P "8.8.8.8:53" -C proxy.crt -K proxy.key`  
+本地执行:  
+`./proxy udp -p ":5353" -T tls -P "22.22.22.33:33080" -C proxy.crt -K proxy.key`  
+那么访问本地UDP:5353端口就是通过加密TCP隧道,通过VPS访问8.8.8.8的UDP:53端口.  
+  
+**3.5.加密三级UDP代理**  
+一级TCP代理VPS_01,IP:22.22.22.22  
+`./proxy tcp --tls -p ":38080" -T udp -P "8.8.8.8:53" -C proxy.crt -K proxy.key`  
+二级TCP代理VPS_02,IP:33.33.33.33  
+`./proxy tcp --tls -p ":28080" -T tls -P "22.22.22.22:38080" -C proxy.crt -K proxy.key`  
+三级TCP代理(本地)  
+`./proxy udp -p ":5353" -T tls -P "33.33.33.33:28080" -C proxy.crt -K proxy.key`  
+那么访问本地5353端口就是通过加密TCP隧道,通过VPS_01访问8.8.8.8的53端口.  
+  
+**3.6.查看帮助**  
+`./proxy help udp`  
+  
+### 4.内网穿透  
+**4.1、原理说明**  
+内网穿透,由三部分组成:client端,server端,bridge端；client和server主动连接bridge端进行桥接.  
+当用户访问server端,流程是:  
+1. server主动和bridge端建立连接；  
+1. 然后bridge端通知client端连接bridge端,并连接内网目标端口;  
+1. 然后绑定client端到bridge端和client端到内网端口的连接；  
+1. 然后bridge端把client过来的连接与server端过来的连接绑定；  
+1. 整个通道建立完成；  
+  
+**4.2、TCP普通用法**  
+背景:  
+- 公司机器A提供了web服务80端口  
+- 有VPS一个,公网IP:22.22.22.22  
+- 本用法典型案例就是微信接口本地开发    
 
-2、作为普通二级代理。  
+需求:  
-可以通过-P指定上级代理，格式是IP:端口  
+在家里能够通过访问VPS的28080端口访问到公司机器A的80端口  
-./proxy -P "192.168.1.100:60080" -p 33080 
+  
+步骤:  
+1. 在vps上执行  
+    `./proxy tbridge -p ":33080" -C proxy.crt -K proxy.key`  
+    `./proxy tserver -r ":28080@:80" -P "127.0.0.1:33080" -C proxy.crt -K proxy.key`  
+  
+1. 在公司机器A上面执行  
+    `./proxy tclient -C proxy.crt -K proxy.key`  
 
-3、作为加密一级代理。  
+1. 完成  
-加密模式的一级代理需要和加密的二级代理配合。  
+  
-加密模式需要证书和key文件，在linux上并安装了openssl命令，可以直接通过下面的命令生成证书和key文件。  
+**4.3、微信接口本地开发**  
-./proxy keygen  
+背景:  
-会在当前目录下面生成一个证书文件proxy.crt和key文件proxy.key。  
+- 自己的笔记本提供了nginx服务80端口  
-比如在你的vps上运行加密一级代理，使用参数-x即可，默认会使用程序相同目录下面的证书文件proxy.crt和key文件proxy.key。  
+- 有VPS一个,公网IP:22.22.22.22  
-./proxy -x   
-或者使用-c和-k指定证书和key文件,ip和端口。   
-./proxy -x -c "proxy.crt" -k "proxy.key" -p 58080  
 
-4、作为加密二级代理。  
+需求:  
-加密模式的二级代理需要和加密的一级代理配合。加密模式的二级代理和加密模式的一级代理要使用相同的证书和key文件。  
+在微信的开发帐号的网页回调接口配置里面填写地址:http://22.22.22.22/calback.php  
-默认会使用程序相同目录下面的证书文件proxy.crt和key文件proxy.key。    
+然后就可以访问到笔记本的80端口下面的calback.php,如果需要绑定域名,可以用自己的域名  
-比如在你的windows电脑上允许二级加密代理,需要-P指定上级代理，同时设置-Ps代表是加密的上级代理。   
+比如:wx-dev.xxx.com解析到22.22.22.22,然后在自己笔记本的nginx里  
-假设一级代理vps外网IP是：115.34.9.63。    
+配置域名wx-dev.xxx.com到具体的目录即可.  
-./proxy.exe -Ps -P "115.34.9.63:58080" -c "proxy.crt" -k "proxy.key"  -p 18080     
-然后设置你的windos系统中，需要通过代理上网的程序的代理为http模式，地址为：127.0.0.1，端口为：18080，    
-然后程序即可通过加密通道通过vps上网。   
 
-任何使用问题欢迎邮件交流：arraykeys@gmail.com   
+  
+步骤:  
+1. 在vps上执行,确保vps的80端口没被其它程序占用.  
+    `./proxy tbridge -p ":33080" -C proxy.crt -K proxy.key`  
+    `./proxy tserver -r ":80@:80" -P ":33080" -C proxy.crt -K proxy.key`  
+
+1. 在自己笔记本上面执行  
+    `./proxy tclient -C proxy.crt -K proxy.key`  
+
+1. 完成  
+  
+**4.4、UDP普通用法**  
+背景:  
+- 公司机器A提供了DNS解析服务,UDP:53端口  
+- 有VPS一个,公网IP:22.22.22.22  
+  
+需求:  
+在家里能够通过设置本地dns为22.22.22.22,使用公司机器A进行域名解析服务.  
+  
+步骤:  
+1. 在vps上执行  
+    `./proxy tbridge -p ":33080" -C proxy.crt -K proxy.key`  
+    `./proxy tserver --udp -r ":53@:53" -P "127.0.0.1:33080" -C proxy.crt -K proxy.key`  
+
+1. 在公司机器A上面执行  
+    `./proxy tclient --udp -P "22.22.22.22:33080" -C proxy.crt -K proxy.key`  
+
+1. 完成  
+  
+**4.5、高级用法一**  
+背景:  
+- 公司机器A提供了web服务80端口  
+- 有VPS一个,公网IP:22.22.22.22  
+  
+需求:  
+为了安全,不想在VPS上能够访问到公司机器A,在家里能够通过访问本机的28080端口,  
+通过加密隧道访问到公司机器A的80端口.  
+  
+步骤:  
+1. 在vps上执行  
+    `./proxy tbridge -p ":33080" -C proxy.crt -K proxy.key`  
+  
+1. 在公司机器A上面执行  
+    `./proxy tclient -P "22.22.22.22:33080" -C proxy.crt -K proxy.key`  
+  
+1. 在家里电脑上执行  
+    `./proxy tserver -r ":28080@:80" -P "22.22.22.22:33080" -C proxy.crt -K proxy.key`  
+  
+1. 完成  
+  
+**4.6、高级用法二**  
+提示:  
+如果同时有多个client连接到同一个bridge,需要指定不同的key,可以通过--k参数设定,--k可以是任意唯一字符串,
+只要在同一个bridge上唯一即可.  
+server连接到bridge的时候,如果同时有多个client连接到同一个bridge,需要使用--k参数选择client. 
+暴露多个端口重复-r参数即可.-r格式是:"本地IP:本地端口@clientHOST:client端口"  
+  
+背景:  
+- 公司机器A提供了web服务80端口,ftp服务21端口  
+- 有VPS一个,公网IP:22.22.22.22  
+  
+需求:  
+在家里能够通过访问VPS的28080端口访问到公司机器A的80端口  
+在家里能够通过访问VPS的29090端口访问到公司机器A的21端口  
+  
+步骤:  
+1. 在vps上执行  
+    `./proxy tbridge -p ":33080" -C proxy.crt -K proxy.key`  
+    `./proxy tserver -r ":28080@:80" -r ":29090@:21" --k test -P "127.0.0.1:33080" -C proxy.crt -K proxy.key`  
+
+1. 在公司机器A上面执行  
+    `./proxy tclient --k test -P "22.22.22.22:33080" -C proxy.crt -K proxy.key` 
+
+1. 完成  
+  
+**4.7.查看帮助**  
+`./proxy help tbridge`  
+`./proxy help tserver`  
+`./proxy help tserver`  
+  
+  
+### TODO  
+- socks5代理支持.  
+### License  
+Proxy is licensed under GPLv3 license.  
+### Contact  
+QQ交流群:189618940  
+  
+  
+  

auth-file

@@ -0,0 +1,3 @@
+#comment
+user3:pass3
+user4:pass4

config.go

@@ -0,0 +1,147 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"proxy/services"
+	"proxy/utils"
+
+	kingpin "gopkg.in/alecthomas/kingpin.v2"
+)
+
+var (
+	app     *kingpin.Application
+	service *services.ServiceItem
+)
+
+func initConfig() (err error) {
+	//keygen
+	if len(os.Args) > 1 {
+		if os.Args[1] == "keygen" {
+			utils.Keygen()
+			os.Exit(0)
+		}
+	}
+	args := services.Args{}
+	//define  args
+	tcpArgs := services.TCPArgs{}
+	httpArgs := services.HTTPArgs{}
+	tunnelServerArgs := services.TunnelServerArgs{}
+	tunnelClientArgs := services.TunnelClientArgs{}
+	tunnelBridgeArgs := services.TunnelBridgeArgs{}
+	udpArgs := services.UDPArgs{}
+
+	//build srvice args
+	app = kingpin.New("proxy", "happy with proxy")
+	app.Author("snail").Version(APP_VERSION)
+	args.Parent = app.Flag("parent", "parent address, such as: \"23.32.32.19:28008\"").Default("").Short('P').String()
+	certTLS := app.Flag("cert", "cert file for tls").Short('C').Default("proxy.crt").String()
+	keyTLS := app.Flag("key", "key file for tls").Short('K').Default("proxy.key").String()
+
+	//########http#########
+	http := app.Command("http", "proxy on http mode")
+	httpArgs.LocalType = http.Flag("local-type", "parent protocol type <tls|tcp>").Default("tcp").Short('t').Enum("tls", "tcp")
+	httpArgs.ParentType = http.Flag("parent-type", "parent protocol type <tls|tcp>").Short('T').Enum("tls", "tcp")
+	httpArgs.Always = http.Flag("always", "always use parent proxy").Default("false").Bool()
+	httpArgs.Timeout = http.Flag("timeout", "tcp timeout milliseconds when connect to real server or parent proxy").Default("2000").Int()
+	httpArgs.HTTPTimeout = http.Flag("http-timeout", "check domain if blocked , http request timeout milliseconds when connect to host").Default("3000").Int()
+	httpArgs.Interval = http.Flag("interval", "check domain if blocked every interval seconds").Default("10").Int()
+	httpArgs.Blocked = http.Flag("blocked", "blocked domain file , one domain each line").Default("blocked").Short('b').String()
+	httpArgs.Direct = http.Flag("direct", "direct domain file , one domain each line").Default("direct").Short('d').String()
+	httpArgs.AuthFile = http.Flag("auth-file", "http basic auth file,\"username:password\" each line in file").Short('F').String()
+	httpArgs.Auth = http.Flag("auth", "http basic auth username and password, mutiple user repeat -a ,such as: -a user1:pass1 -a user2:pass2").Short('a').Strings()
+	httpArgs.PoolSize = http.Flag("pool-size", "conn pool size , which connect to parent proxy, zero: means turn off pool").Short('L').Default("0").Int()
+	httpArgs.CheckParentInterval = http.Flag("check-parent-interval", "check if proxy is okay every interval seconds,zero: means no check").Short('I').Default("3").Int()
+	httpArgs.Local = http.Flag("local", "local ip:port to listen").Short('p').Default(":33080").String()
+
+	//########tcp#########
+	tcp := app.Command("tcp", "proxy on tcp mode")
+	tcpArgs.Timeout = tcp.Flag("timeout", "tcp timeout milliseconds when connect to real server or parent proxy").Short('t').Default("2000").Int()
+	tcpArgs.ParentType = tcp.Flag("parent-type", "parent protocol type <tls|tcp|udp>").Short('T').Enum("tls", "tcp", "udp")
+	tcpArgs.IsTLS = tcp.Flag("tls", "proxy on tls mode").Default("false").Bool()
+	tcpArgs.PoolSize = tcp.Flag("pool-size", "conn pool size , which connect to parent proxy, zero: means turn off pool").Short('L').Default("0").Int()
+	tcpArgs.CheckParentInterval = tcp.Flag("check-parent-interval", "check if proxy is okay every interval seconds,zero: means no check").Short('I').Default("3").Int()
+	tcpArgs.Local = tcp.Flag("local", "local ip:port to listen").Short('p').Default(":33080").String()
+
+	//########udp#########
+	udp := app.Command("udp", "proxy on udp mode")
+	udpArgs.Timeout = udp.Flag("timeout", "tcp timeout milliseconds when connect to parent proxy").Short('t').Default("2000").Int()
+	udpArgs.ParentType = udp.Flag("parent-type", "parent protocol type <tls|tcp|udp>").Short('T').Enum("tls", "tcp", "udp")
+	udpArgs.PoolSize = udp.Flag("pool-size", "conn pool size , which connect to parent proxy, zero: means turn off pool").Short('L').Default("0").Int()
+	udpArgs.CheckParentInterval = udp.Flag("check-parent-interval", "check if proxy is okay every interval seconds,zero: means no check").Short('I').Default("3").Int()
+	udpArgs.Local = udp.Flag("local", "local ip:port to listen").Short('p').Default(":33080").String()
+
+	//########tunnel-server#########
+	tunnelServer := app.Command("tserver", "proxy on tunnel server mode")
+	tunnelServerArgs.Timeout = tunnelServer.Flag("timeout", "tcp timeout with milliseconds").Short('t').Default("2000").Int()
+	tunnelServerArgs.IsUDP = tunnelServer.Flag("udp", "proxy on udp tunnel server mode").Default("false").Bool()
+	tunnelServerArgs.Key = tunnelServer.Flag("k", "client key").Default("default").String()
+	//tunnelServerArgs.Remote = tunnelServer.Flag("remote", "client's network host:port").Short('R').Default("").String()
+	//tunnelServerArgs.Local = tunnelServer.Flag("local", "local ip:port to listen").Short('p').Default(":33080").String()
+	tunnelServerArgs.Route = tunnelServer.Flag("route", "local route to client's network, such as :localip:localport@clienthost:clientport").Short('r').Default("").Strings()
+
+	//########tunnel-client#########
+	tunnelClient := app.Command("tclient", "proxy on tunnel client mode")
+	tunnelClientArgs.Timeout = tunnelClient.Flag("timeout", "tcp timeout with milliseconds").Short('t').Default("2000").Int()
+	tunnelClientArgs.Key = tunnelClient.Flag("k", "key same with server").Default("default").String()
+
+	//########tunnel-bridge#########
+	tunnelBridge := app.Command("tbridge", "proxy on tunnel bridge mode")
+	tunnelBridgeArgs.Timeout = tunnelBridge.Flag("timeout", "tcp timeout with milliseconds").Short('t').Default("2000").Int()
+	tunnelBridgeArgs.Local = tunnelBridge.Flag("local", "local ip:port to listen").Short('p').Default(":33080").String()
+
+	serviceName := kingpin.MustParse(app.Parse(os.Args[1:]))
+
+	if *certTLS != "" && *keyTLS != "" {
+		args.CertBytes, args.KeyBytes = tlsBytes(*certTLS, *keyTLS)
+	}
+
+	//common args
+	httpArgs.Args = args
+	tcpArgs.Args = args
+	udpArgs.Args = args
+	tunnelBridgeArgs.Args = args
+	tunnelClientArgs.Args = args
+	tunnelServerArgs.Args = args
+	poster()
+	//regist services and run service
+	services.Regist("http", services.NewHTTP(), httpArgs)
+	services.Regist("tcp", services.NewTCP(), tcpArgs)
+	services.Regist("udp", services.NewUDP(), udpArgs)
+	services.Regist("tserver", services.NewTunnelServerManager(), tunnelServerArgs)
+	services.Regist("tclient", services.NewTunnelClient(), tunnelClientArgs)
+	services.Regist("tbridge", services.NewTunnelBridge(), tunnelBridgeArgs)
+	service, err = services.Run(serviceName)
+	if err != nil {
+		log.Fatalf("run service [%s] fail, ERR:%s", service, err)
+	}
+	return
+}
+
+func poster() {
+	fmt.Printf(`
+		########  ########   #######  ##     ## ##    ## 
+		##     ## ##     ## ##     ##  ##   ##   ##  ##  
+		##     ## ##     ## ##     ##   ## ##     ####   
+		########  ########  ##     ##    ###       ##    
+		##        ##   ##   ##     ##   ## ##      ##    
+		##        ##    ##  ##     ##  ##   ##     ##    
+		##        ##     ##  #######  ##     ##    ##    
+		
+		v%s`+" by snail , blog : http://www.host900.com/\n\n", APP_VERSION)
+}
+func tlsBytes(cert, key string) (certBytes, keyBytes []byte) {
+	certBytes, err := ioutil.ReadFile(cert)
+	if err != nil {
+		log.Fatalf("err : %s", err)
+		return
+	}
+	keyBytes, err = ioutil.ReadFile(key)
+	if err != nil {
+		log.Fatalf("err : %s", err)
+		return
+	}
+	return
+}

direct

@@ -0,0 +1,456 @@
+07073.com
+10010.com
+100ye.com
+114la.com
+115.com
+120ask.com
+126.com
+126.net
+1616.net
+163.com
+17173.com
+1778.com
+178.com
+17u.com
+19lou.com
+1o26.com
+1ting.com
+21cn.com
+2345.com
+265.com
+265g.com
+28.com
+28tui.com
+2hua.com
+2mdn.net
+315che.com
+3366.com
+360buy.com
+360buyimg.com
+360doc.com
+36kr.com
+39.net
+3dmgame.com
+4399.com
+4738.com
+500wan.com
+51.com
+51.la
+5173.com
+51auto.com
+51buy.com
+51cto.com
+51fanli.com
+51job.com
+52kmh.com
+52pk.net
+52tlbb.com
+53kf.com
+55bbs.com
+55tuan.com
+56.com
+58.com
+591hx.com
+5d6d.net
+61.com
+70e.com
+777wyx.com
+778669.com
+7c.com
+7k7k.com
+88db.com
+91.com
+99bill.com
+a135.net
+abang.com
+abchina.com
+ad1111.com
+admin5.com
+adnxs.com
+adobe.com
+adroll.com
+ads8.com
+adsame.com
+adsonar.com
+adtechus.com
+aibang.com
+aifang.com
+aili.com
+aipai.com
+aizhan.com
+ali213.net
+alibaba.com
+alicdn.com
+aliexpress.com
+alimama.com
+alipay.com
+alipayobjects.com
+alisoft.com
+alivv.com
+aliyun.com
+allyes.com
+amazon.com
+anjuke.com
+anzhi.com
+aol.com
+apple.com
+arpg2.com
+atdmt.com
+b2b168.com
+babytree.com
+baidu.com
+baihe.com
+baixing.com
+bankcomm.com
+baomihua.com
+bdimg.com
+bdstatic.com
+bendibao.com
+betrad.com
+bilibili.tv
+bing.com
+bitauto.com
+blog.163.com
+blogchina.com
+blueidea.com
+bluekai.com
+booksky.org
+caixin.com
+ccb.com
+ccidnet.com
+cctv*.com
+china.com
+chinabyte.com
+chinahr.com
+chinanews.com
+chinaw3.com
+chinaz.com
+chuangelm.com
+ci123.com
+cmbchina.com
+cnbeta.com
+cnblogs.com
+cncn.com
+cnhubei.com
+cnki.net
+cnmo.com
+cnxad.com
+cnzz.com
+cocoren.com
+compete.com
+comsenz.com
+coo8.com
+cqnews.net
+crsky.com
+csdn.net
+ct10000.com
+ctrip.com
+dangdang.com
+daqi.com
+dayoo.com
+dbank.com
+ddmap.com
+dedecms.com
+dh818.com
+diandian.com
+dianping.com
+discuz.net
+doc88.com
+docin.com
+donews.com
+dospy.com
+douban.com
+douban.fm
+doubleclick.com
+doubleclick.net
+duba.net
+duote.com
+duowan.com
+dzwww.com
+eastday.com
+eastmoney.com
+ebay.com
+elong.com
+ename.net
+etao.com
+exam8.com
+eye.rs
+fantong.com
+fastcdn.com
+fblife.com
+fengniao.com
+fenzhi.com
+flickr.com
+fobshanghai.com
+ftuan.com
+funshion.com
+fx120.net
+game3737.com
+gamersky.com
+gamestlbb.com
+gamesville.com
+ganji.com
+gfan.com
+gongchang.com
+google-analytics.com
+gougou.com
+gtimg.com
+hao123.com
+haodf.com
+harrenmedianetwork.com
+hc360.com
+hefei.cc
+hf365.com
+hiapk.com
+hichina.com
+homeinns.com
+hotsales.net
+house365.com
+huaban.com
+huanqiu.com
+hudong.com
+hupu.com
+iask.com
+iciba.com
+icson.com
+ifeng.com
+iloveyouxi.com
+im286.com
+imanhua.com
+img.cctvpic.com
+imrworldwide.com
+invitemedia.com
+ip138.com
+ipinyou.com
+iqilu.com
+iqiyi.com
+irs01.com
+irs01.net
+it168.com
+iteye.com
+iyaya.com
+jb51.net
+jiathis.com
+jiayuan.com
+jing.fm
+jinti.com
+jqw.com
+jumei.com
+jxedt.com
+jysq.net
+kaixin001.com
+kandian.com
+kdnet.net
+kimiss.com
+ku6.com
+ku6cdn.com
+ku6img.com
+kuaidi100.com 
+kugou.com
+l99.com
+lady8844.com
+lafaso.com
+lashou.com
+legolas-media.com
+lehecai.com
+leho.com
+letv.com
+liebiao.com
+lietou.com
+linezing.com
+linkedin.com
+live.com
+longhoo.net
+lusongsong.com
+lxdns.com
+lycos.com 
+lygo.com 
+m18.com
+m1905.com
+made-in-china.com
+makepolo.com
+mangocity.com
+manzuo.com
+mapbar.com
+mathtag.com
+mediaplex.com
+mediav.com
+meilele.com
+meilishuo.com
+meishichina.com
+meituan.com
+meizu.com
+miaozhen.com
+microsoft.com
+miercn.com
+mlt01.com
+mmcdn.cn
+mmstat.com
+mnwan.com
+mogujie.com
+mookie1.com
+moonbasa.com
+mop.com
+mosso.com
+mplife.com
+msn.com
+mtime.com
+mumayi.com
+mydrivers.com
+net114.com
+netease.com
+newsmth.net
+nipic.com
+nowec.com
+nuomi.com
+oadz.com
+oeeee.com
+onetad.com
+onlinedown.net
+onlylady.com
+oschina.net
+otwan.com
+paipai.com
+paypal.com
+pchome.net
+pcpop.com
+pengyou.com
+php100.com
+phpwind.net
+pingan.com
+pixlr.com 
+pp.cc
+ppstream.com
+pptv.com
+ptlogin2.qq.com
+pubmatic.com
+q150.com
+qianlong.com
+qidian.com
+qingdaonews.com
+qire123.com
+qiushibaike.com
+qiyou.com
+qjy168.com
+qq.com
+qq937.com
+qstatic.com
+quantserve.com
+qunar.com
+rakuten.co.jp
+readnovel.com
+renren.com
+rtbidder.net
+scanscout.com
+scorecardresearch.com 
+sdo.com
+seowhy.com
+serving-sys.com 
+sf-express.com
+shangdu.com
+si.kz
+sina.com
+sinahk.net
+sinajs.com 
+smzdm.com
+snyu.com
+sodu.org
+sogou.com
+sohu.com
+soku.com
+sootoo.com
+soso.com
+soufun.com
+sourceforge.net
+staticsdo.com
+stockstar.com
+sttlbb.com
+suning.com
+szhome.com
+sznews.com
+tangdou.com
+tanx.com
+tao123.com
+taobao.com
+taobaocdn.com
+tbcdn.cn
+tdimg.com
+tenpay.com
+tgbus.com
+theplanet.com
+thethirdmedia.com
+tiancity.com
+tianji.com
+tiao8.info
+tiexue.net
+titan24.com
+tmall.com
+tom.com
+toocle.com
+tremormedia.com
+tuan800.com
+tudou.com
+tudouui.com
+tui18.com
+tuniu.com
+twcczhu.com
+u17.com
+ucjoy.com
+ulink.cc
+uniontoufang.com
+up2c.com
+uuu9.com
+uuzu.com
+vancl.com
+verycd.com
+vipshop.com
+vizu.com
+vjia.com
+weibo.com
+weiphone.com
+west263.com
+whlongda.com
+wrating.com 
+wumii.com
+xiami.com
+xiaomi.com
+xiazaiba.com
+xici.net
+xinhuanet.com
+xinnet.com
+xitek.com
+xiu.com
+xunlei.com
+xyxy.net
+yahoo.co.jp
+yahoo.com
+yaolan.com
+yesky.com
+yieldmanager.com
+yihaodian.com
+yingjiesheng.com
+yinyuetai.com
+yiqifa.com
+ykimg.com
+ynet.com
+yoka.com
+yolk7.com
+youboy.com
+youdao.com
+yougou.com
+youku.com
+youshang.com
+yupoo.com
+yxlady.com
+yyets.com
+zhaodao123.com
+zhaopin.com
+zhenai.com
+zhibo8.cc
+zhihu.com
+zhubajie.com
+zongheng.com
+zoosnet.net
+zqgame.com
+ztgame.com
+zx915.com

docs/faststart.md

@@ -0,0 +1,40 @@
+这里以vps centos 64位为例子  
+Linux 部分  
+1.Putty工具（或其他工具）  
+root登入  
+2.下载批量命令文件install_auto.sh（64位的话直接执行这个命令即可）    
+#curl -L https://raw.githubusercontent.com/snail007/goproxy/master/install_auto.sh | bash  
+注意  
+这里的install_auto.sh 源码可以下载修改proxy版本,保存后执行.  
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image001.png?raw=true"/>  
+3.修改/etc/proxy/proxy.toml配置文件   
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image002.png?raw=true"/>
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image003.png?raw=true"/>
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image004.png?raw=true"/>  
+#/usr/bin/proxyd status  
+如果未运行那么执行调试命令：/usr/bin/proxy   
+如果一切正常,可以使用proxyd命令管理proxy,执行 proxyd 可以查看用法.
+后台启动proxy: proxyd start
+4.下载证书加密文件/etc/proxy/proxy.crt和/etc/proxy/proxy.key到windows  
+Windows部分  
+5.https://github.com/snail007/goproxy/releases 下载对应windows版本   
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image005.jpg?raw=true"/>  
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image006.png?raw=true"/>  
+我的是d：盘  
+6.修改windows下的proxy.toml  vps服务ip和上面设置的端口哦  
+<img src="https://github.com/snail007/goproxy/blob/master/docs/images/image007.png?raw=true"/>  
+然后运行proxy.exe即可.  
+这时候浏览器代理服务器就是127.0.0.1:9501啦,完毕!  
+
+要隐藏windows命令用工具下载RunHiddenConsole.exe 写个bat文件都放proxy目录下就行
+Start.bat  
+
+@echo off  
+echo Starting  
+RunHiddenConsole D:/proxy/proxy.exe  
+
+Stop.bat  
+@echo off  
+echo Stopping  
+taskkill /F /IM proxy.exe > nul  
+exit  

install.sh

@@ -1,36 +1,26 @@
 #!/bin/bash
+set -e
+
 # install monexec
-tar zxvf monexec_*.tar.gz
+tar zxvf monexec_0.1.1_linux_amd64.tar.gz
-cd  monexec_*
+cd  monexec_0.1.1_linux_amd64
 cp monexec /usr/bin/
 chmod +x /usr/bin/monexec
-
+cd ..
 # #install proxy
-tar zxvf proxy-*.tar.gz
+tar zxvf proxy-linux-amd64.tar.gz
-cd  proxy-*
 cp proxy /usr/bin/
-cp proxyd /usr/bin/
 chmod +x /usr/bin/proxy
-chmod +x /usr/bin/proxyd
 if [ ! -e /etc/proxy ]; then
     mkdir /etc/proxy
-    cp proxy.toml /etc/proxy/
+    cp blocked /etc/proxy
+    cp direct  /etc/proxy
 fi
 
 if [ ! -e /etc/proxy/proxy.crt ]; then
     cd /etc/proxy/
     proxy keygen >/dev/null 2>&1 
 fi
-
+rm -rf /tmp/proxy
-if [ ! -e /etc/proxy/blocked ]; then
-    cd /etc/proxy/
-    cp blocked /etc/proxy/
-fi
-
-if [ ! -e /etc/proxy/direct ]; then
-    cd /etc/proxy/
-    cp direct /etc/proxy/
-fii
-
 echo "install done"
-proxyd
+proxy help

install_auto.sh

@@ -1,32 +1,33 @@
 #!/bin/bash
-
+set -e
-rm -rf /tmp/proxy
+if [ -e /tmp/proxy ]; then
+    rm -rf /tmp/proxy
+fi
 mkdir /tmp/proxy
 cd /tmp/proxy
 wget https://github.com/reddec/monexec/releases/download/v0.1.1/monexec_0.1.1_linux_amd64.tar.gz
-wget https://github.com/snail007/goproxy/blob/master/release-2.0/proxy-linux-amd64.tar.gz
+wget https://github.com/snail007/goproxy/releases/download/v3.1/proxy-linux-amd64.tar.gz
 
 # install monexec
-tar zxvf monexec_*.tar.gz
+tar zxvf monexec_0.1.1_linux_amd64.tar.gz
-cd  monexec_*
+cd  monexec_0.1.1_linux_amd64
 cp monexec /usr/bin/
 chmod +x /usr/bin/monexec
-
+cd ..
 # #install proxy
-tar zxvf proxy-*.tar.gz
+tar zxvf proxy-linux-amd64.tar.gz
-cd  proxy-*
 cp proxy /usr/bin/
-cp proxyd /usr/bin/
 chmod +x /usr/bin/proxy
-chmod +x /usr/bin/proxyd
 if [ ! -e /etc/proxy ]; then
     mkdir /etc/proxy
-    cp proxy.toml /etc/proxy/
+    cp blocked /etc/proxy
+    cp direct  /etc/proxy
 fi
 
 if [ ! -e /etc/proxy/proxy.crt ]; then
     cd /etc/proxy/
     proxy keygen >/dev/null 2>&1 
 fi
+rm -rf /tmp/proxy
 echo "install done"
-proxyd
+proxy help

keygen.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+openssl genrsa -out proxy.key 2048
+openssl req -new -key proxy.key -x509 -days 3650 -out proxy.crt -subj /C=CN/ST=BJ/O="Localhost Ltd"/CN=proxy

main.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/signal"
+	"proxy/services"
+	"syscall"
+)
+
+const APP_VERSION = "3.0"
+
+func main() {
+	err := initConfig()
+	if err != nil {
+		log.Fatalf("err : %s", err)
+	}
+	Clean(&service.S)
+}
+func Clean(s *services.Service) {
+	signalChan := make(chan os.Signal, 1)
+	cleanupDone := make(chan bool)
+	signal.Notify(signalChan,
+		os.Interrupt,
+		syscall.SIGHUP,
+		syscall.SIGINT,
+		syscall.SIGTERM,
+		syscall.SIGQUIT)
+	go func() {
+		for _ = range signalChan {
+			fmt.Println("\nReceived an interrupt, stopping services...")
+			(*s).Clean()
+			cleanupDone <- true
+		}
+	}()
+	<-cleanupDone
+}

release.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+VER="3.1"
+RELEASE="release-${VER}"
+rm -rf .cert
+mkdir .cert
+go build 
+cd .cert
+../proxy keygen
+cd ..
+rm -rf ${RELEASE}
+mkdir ${RELEASE}
+set CGO_ENABLED=0
+#linux
+GOOS=linux GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-linux-386.tar.gz" proxy direct blocked
+GOOS=linux GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-linux-amd64.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=arm GOARM=7 go build && tar zcfv "${RELEASE}/proxy-linux-arm.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=arm64 GOARM=7 go build && tar zcfv "${RELEASE}/proxy-linux-arm64.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=mips go build && tar zcfv "${RELEASE}/proxy-linux-mips.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=mips64 go build && tar zcfv "${RELEASE}/proxy-linux-mips64.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=mips64le go build && tar zcfv "${RELEASE}/proxy-linux-mips64le.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=mipsle go build && tar zcfv "${RELEASE}/proxy-linux-mipsle.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=ppc64 go build && tar zcfv "${RELEASE}/proxy-linux-ppc64.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=ppc64le go build && tar zcfv "${RELEASE}/proxy-linux-ppc64le.tar.gz" proxy direct blocked 
+GOOS=linux GOARCH=s390x go build && tar zcfv "${RELEASE}/proxy-linux-s390x.tar.gz" proxy direct blocked 
+#android
+GOOS=android GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-android-386.tar.gz" proxy direct blocked 
+GOOS=android GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-android-amd64.tar.gz" proxy direct blocked 
+GOOS=android GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-android-arm.tar.gz" proxy direct blocked 
+GOOS=android GOARCH=arm64 go build && tar zcfv "${RELEASE}/proxy-android-arm64.tar.gz" proxy direct blocked 
+#darwin
+GOOS=darwin GOARCH=386 go build go build && tar zcfv "${RELEASE}/proxy-darwin-386.tar.gz" proxy direct blocked 
+GOOS=darwin GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-darwin-amd64.tar.gz" proxy direct blocked 
+GOOS=darwin GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-darwin-arm.tar.gz" proxy direct blocked 
+GOOS=darwin GOARCH=arm64 go build && tar zcfv "${RELEASE}/proxy-darwin-arm64.tar.gz" proxy direct blocked 
+#dragonfly
+GOOS=dragonfly GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-dragonfly-amd64.tar.gz" proxy direct blocked 
+#freebsd
+GOOS=freebsd GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-freebsd-386.tar.gz" proxy direct blocked 
+GOOS=freebsd GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-freebsd-amd64.tar.gz" proxy direct blocked 
+GOOS=freebsd GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-freebsd-arm.tar.gz" proxy direct blocked 
+#nacl
+GOOS=nacl GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-nacl-386.tar.gz" proxy direct blocked 
+GOOS=nacl GOARCH=amd64p32 go build && tar zcfv "${RELEASE}/proxy-nacl-amd64p32.tar.gz" proxy direct blocked 
+GOOS=nacl GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-nacl-arm.tar.gz" proxy direct blocked 
+#netbsd
+GOOS=netbsd GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-netbsd-386.tar.gz" proxy direct blocked 
+GOOS=netbsd GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-netbsd-amd64.tar.gz" proxy direct blocked 
+GOOS=netbsd GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-netbsd-arm.tar.gz" proxy direct blocked 
+#openbsd
+GOOS=openbsd GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-openbsd-386.tar.gz" proxy direct blocked 
+GOOS=openbsd GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-openbsd-amd64.tar.gz" proxy direct blocked 
+GOOS=openbsd GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-openbsd-arm.tar.gz" proxy direct blocked 
+#plan9
+GOOS=plan9 GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-plan9-386.tar.gz" proxy direct blocked 
+GOOS=plan9 GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-plan9-amd64.tar.gz" proxy direct blocked 
+GOOS=plan9 GOARCH=arm go build && tar zcfv "${RELEASE}/proxy-plan9-arm.tar.gz" proxy direct blocked 
+#solaris
+GOOS=solaris GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-solaris-amd64.tar.gz" proxy direct blocked 
+#windows
+GOOS=windows GOARCH=386 go build && tar zcfv "${RELEASE}/proxy-windows-386.tar.gz" proxy.exe  direct blocked .cert/proxy.crt .cert/proxy.key
+GOOS=windows GOARCH=amd64 go build && tar zcfv "${RELEASE}/proxy-windows-amd64.tar.gz" proxy.exe  direct blocked .cert/proxy.crt .cert/proxy.key
+
+rm -rf proxy proxy.exe .cert

services/args.go

@@ -0,0 +1,80 @@
+package services
+
+// tcp := app.Command("tcp", "proxy on tcp mode")
+// t := tcp.Flag("tcp-timeout", "tcp timeout milliseconds when connect to real server or parent proxy").Default("2000").Int()
+
+const (
+	TYPE_TCP     = "tcp"
+	TYPE_UDP     = "udp"
+	TYPE_HTTP    = "http"
+	TYPE_TLS     = "tls"
+	CONN_CONTROL = uint8(1)
+	CONN_SERVER  = uint8(2)
+	CONN_CLIENT  = uint8(3)
+)
+
+type Args struct {
+	Parent    *string
+	CertBytes []byte
+	KeyBytes  []byte
+}
+type TunnelServerArgs struct {
+	Args
+	Local   *string
+	IsUDP   *bool
+	Key     *string
+	Remote  *string
+	Timeout *int
+	Route   *[]string
+}
+type TunnelClientArgs struct {
+	Args
+	Key     *string
+	Timeout *int
+}
+type TunnelBridgeArgs struct {
+	Args
+	Local   *string
+	Timeout *int
+}
+type TCPArgs struct {
+	Args
+	Local               *string
+	ParentType          *string
+	IsTLS               *bool
+	Timeout             *int
+	PoolSize            *int
+	CheckParentInterval *int
+}
+
+type HTTPArgs struct {
+	Args
+	Local               *string
+	Always              *bool
+	HTTPTimeout         *int
+	Interval            *int
+	Blocked             *string
+	Direct              *string
+	AuthFile            *string
+	Auth                *[]string
+	ParentType          *string
+	LocalType           *string
+	Timeout             *int
+	PoolSize            *int
+	CheckParentInterval *int
+}
+type UDPArgs struct {
+	Args
+	Local               *string
+	ParentType          *string
+	Timeout             *int
+	PoolSize            *int
+	CheckParentInterval *int
+}
+
+func (a *TCPArgs) Protocol() string {
+	if *a.IsTLS {
+		return "tls"
+	}
+	return "tcp"
+}

services/http.go

@@ -0,0 +1,219 @@
+package services
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"proxy/utils"
+	"runtime/debug"
+	"strconv"
+)
+
+type HTTP struct {
+	outPool   utils.OutPool
+	cfg       HTTPArgs
+	checker   utils.Checker
+	basicAuth utils.BasicAuth
+}
+
+func NewHTTP() Service {
+	return &HTTP{
+		outPool:   utils.OutPool{},
+		cfg:       HTTPArgs{},
+		checker:   utils.Checker{},
+		basicAuth: utils.BasicAuth{},
+	}
+}
+func (s *HTTP) InitService() {
+	s.InitBasicAuth()
+	if *s.cfg.Parent != "" {
+		s.checker = utils.NewChecker(*s.cfg.HTTPTimeout, int64(*s.cfg.Interval), *s.cfg.Blocked, *s.cfg.Direct)
+	}
+}
+func (s *HTTP) StopService() {
+	if s.outPool.Pool != nil {
+		s.outPool.Pool.ReleaseAll()
+	}
+}
+func (s *HTTP) Start(args interface{}) (err error) {
+	s.cfg = args.(HTTPArgs)
+	if *s.cfg.Parent != "" {
+		log.Printf("use %s parent %s", *s.cfg.ParentType, *s.cfg.Parent)
+		s.InitOutConnPool()
+	}
+
+	s.InitService()
+
+	host, port, _ := net.SplitHostPort(*s.cfg.Local)
+	p, _ := strconv.Atoi(port)
+	sc := utils.NewServerChannel(host, p)
+	if *s.cfg.LocalType == TYPE_TCP {
+		err = sc.ListenTCP(s.callback)
+	} else {
+		err = sc.ListenTls(s.cfg.CertBytes, s.cfg.KeyBytes, s.callback)
+	}
+	if err != nil {
+		return
+	}
+	log.Printf("%s http(s) proxy on %s", *s.cfg.LocalType, (*sc.Listener).Addr())
+	return
+}
+
+func (s *HTTP) Clean() {
+	s.StopService()
+}
+func (s *HTTP) callback(inConn net.Conn) {
+	defer func() {
+		if err := recover(); err != nil {
+			log.Printf("http(s) conn handler crashed with err : %s \nstack: %s", err, string(debug.Stack()))
+		}
+	}()
+	req, err := utils.NewHTTPRequest(&inConn, 4096, s.IsBasicAuth(), &s.basicAuth)
+	if err != nil {
+		if err != io.EOF {
+			log.Printf("decoder error , form %s, ERR:%s", err, inConn.RemoteAddr())
+		}
+		utils.CloseConn(&inConn)
+		return
+	}
+	address := req.Host
+
+	useProxy := true
+	if *s.cfg.Parent == "" {
+		useProxy = false
+	} else if *s.cfg.Always {
+		useProxy = true
+	} else {
+		if req.IsHTTPS() {
+			s.checker.Add(address, true, req.Method, "", nil)
+		} else {
+			s.checker.Add(address, false, req.Method, req.URL, req.HeadBuf)
+		}
+		//var n, m uint
+		useProxy, _, _ = s.checker.IsBlocked(req.Host)
+		//log.Printf("blocked ? : %v, %s , fail:%d ,success:%d", useProxy, address, n, m)
+	}
+	log.Printf("use proxy : %v, %s", useProxy, address)
+	//os.Exit(0)
+	err = s.OutToTCP(useProxy, address, &inConn, &req)
+	if err != nil {
+		if *s.cfg.Parent == "" {
+			log.Printf("connect to %s fail, ERR:%s", address, err)
+		} else {
+			log.Printf("connect to %s parent %s fail", *s.cfg.ParentType, *s.cfg.Parent)
+		}
+		utils.CloseConn(&inConn)
+	}
+}
+func (s *HTTP) OutToTCP(useProxy bool, address string, inConn *net.Conn, req *utils.HTTPRequest) (err error) {
+	inAddr := (*inConn).RemoteAddr().String()
+	inLocalAddr := (*inConn).LocalAddr().String()
+	//防止死循环
+	if s.IsDeadLoop(inLocalAddr, req.Host) {
+		utils.CloseConn(inConn)
+		err = fmt.Errorf("dead loop detected , %s", req.Host)
+		return
+	}
+	var outConn net.Conn
+	var _outConn interface{}
+	if useProxy {
+		_outConn, err = s.outPool.Pool.Get()
+		if err == nil {
+			outConn = _outConn.(net.Conn)
+		}
+	} else {
+		outConn, err = utils.ConnectHost(address, *s.cfg.Timeout)
+	}
+	if err != nil {
+		log.Printf("connect to %s , err:%s", *s.cfg.Parent, err)
+		utils.CloseConn(inConn)
+		return
+	}
+
+	outAddr := outConn.RemoteAddr().String()
+	outLocalAddr := outConn.LocalAddr().String()
+
+	if req.IsHTTPS() && !useProxy {
+		req.HTTPSReply()
+	} else {
+		outConn.Write(req.HeadBuf)
+	}
+	utils.IoBind((*inConn), outConn, func(err error) {
+		log.Printf("conn %s - %s - %s -%s released [%s]", inAddr, inLocalAddr, outLocalAddr, outAddr, req.Host)
+		utils.CloseConn(inConn)
+		utils.CloseConn(&outConn)
+	}, func(n int, d bool) {}, 0)
+	log.Printf("conn %s - %s - %s - %s connected [%s]", inAddr, inLocalAddr, outLocalAddr, outAddr, req.Host)
+	return
+}
+func (s *HTTP) OutToUDP(inConn *net.Conn) (err error) {
+	return
+}
+func (s *HTTP) InitOutConnPool() {
+	if *s.cfg.ParentType == TYPE_TLS || *s.cfg.ParentType == TYPE_TCP {
+		//dur int, isTLS bool, certBytes, keyBytes []byte,
+		//parent string, timeout int, InitialCap int, MaxCap int
+		s.outPool = utils.NewOutPool(
+			*s.cfg.CheckParentInterval,
+			*s.cfg.ParentType == TYPE_TLS,
+			s.cfg.CertBytes, s.cfg.KeyBytes,
+			*s.cfg.Parent,
+			*s.cfg.Timeout,
+			*s.cfg.PoolSize,
+			*s.cfg.PoolSize*2,
+		)
+	}
+}
+func (s *HTTP) InitBasicAuth() (err error) {
+	s.basicAuth = utils.NewBasicAuth()
+	if *s.cfg.AuthFile != "" {
+		var n = 0
+		n, err = s.basicAuth.AddFromFile(*s.cfg.AuthFile)
+		if err != nil {
+			err = fmt.Errorf("auth-file ERR:%s", err)
+			return
+		}
+		log.Printf("auth data added from file %d , total:%d", n, s.basicAuth.Total())
+	}
+	if len(*s.cfg.Auth) > 0 {
+		n := s.basicAuth.Add(*s.cfg.Auth)
+		log.Printf("auth data added %d, total:%d", n, s.basicAuth.Total())
+	}
+	return
+}
+func (s *HTTP) IsBasicAuth() bool {
+	return *s.cfg.AuthFile != "" || len(*s.cfg.Auth) > 0
+}
+func (s *HTTP) IsDeadLoop(inLocalAddr string, host string) bool {
+	inIP, inPort, err := net.SplitHostPort(inLocalAddr)
+	if err != nil {
+		return false
+	}
+	outDomain, outPort, err := net.SplitHostPort(host)
+	if err != nil {
+		return false
+	}
+	if inPort == outPort {
+		var outIPs []net.IP
+		outIPs, err = net.LookupIP(outDomain)
+		if err == nil {
+			for _, ip := range outIPs {
+				if ip.String() == inIP {
+					return true
+				}
+			}
+		}
+		interfaceIPs, err := utils.GetAllInterfaceAddr()
+		if err == nil {
+			for _, localIP := range interfaceIPs {
+				for _, outIP := range outIPs {
+					if localIP.Equal(outIP) {
+						return true
+					}
+				}
+			}
+		}
+	}
+	return false
+}

services/service.go

@@ -0,0 +1,52 @@
+package services
+
+import (
+	"fmt"
+	"log"
+	"runtime/debug"
+)
+
+type Service interface {
+	Start(args interface{}) (err error)
+	Clean()
+}
+type ServiceItem struct {
+	S    Service
+	Args interface{}
+	Name string
+}
+
+var servicesMap = map[string]*ServiceItem{}
+
+func Regist(name string, s Service, args interface{}) {
+	servicesMap[name] = &ServiceItem{
+		S:    s,
+		Args: args,
+		Name: name,
+	}
+}
+func Run(name string, args ...interface{}) (service *ServiceItem, err error) {
+	service, ok := servicesMap[name]
+	if ok {
+		go func() {
+			defer func() {
+				err := recover()
+				if err != nil {
+					log.Fatalf("%s servcie crashed, ERR: %s\ntrace:%s", name, err, string(debug.Stack()))
+				}
+			}()
+			if len(args) == 1 {
+				err = service.S.Start(args[0])
+			} else {
+				err = service.S.Start(service.Args)
+			}
+			if err != nil {
+				log.Fatalf("%s servcie fail, ERR: %s", name, err)
+			}
+		}()
+	}
+	if !ok {
+		err = fmt.Errorf("service %s not found", name)
+	}
+	return
+}

services/tcp.go

@@ -0,0 +1,171 @@
+package services
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"proxy/utils"
+	"runtime/debug"
+	"time"
+
+	"strconv"
+)
+
+type TCP struct {
+	outPool utils.OutPool
+	cfg     TCPArgs
+}
+
+func NewTCP() Service {
+	return &TCP{
+		outPool: utils.OutPool{},
+		cfg:     TCPArgs{},
+	}
+}
+func (s *TCP) InitService() {
+	s.InitOutConnPool()
+}
+func (s *TCP) StopService() {
+	if s.outPool.Pool != nil {
+		s.outPool.Pool.ReleaseAll()
+	}
+}
+func (s *TCP) Start(args interface{}) (err error) {
+	s.cfg = args.(TCPArgs)
+	if *s.cfg.Parent != "" {
+		log.Printf("use %s parent %s", *s.cfg.ParentType, *s.cfg.Parent)
+	} else {
+		log.Fatalf("parent required for %s %s", s.cfg.Protocol(), *s.cfg.Local)
+	}
+
+	s.InitService()
+
+	host, port, _ := net.SplitHostPort(*s.cfg.Local)
+	p, _ := strconv.Atoi(port)
+	sc := utils.NewServerChannel(host, p)
+	if !*s.cfg.IsTLS {
+		err = sc.ListenTCP(s.callback)
+	} else {
+		err = sc.ListenTls(s.cfg.CertBytes, s.cfg.KeyBytes, s.callback)
+	}
+	if err != nil {
+		return
+	}
+	log.Printf("%s proxy on %s", s.cfg.Protocol(), (*sc.Listener).Addr())
+	return
+}
+
+func (s *TCP) Clean() {
+	s.StopService()
+}
+func (s *TCP) callback(inConn net.Conn) {
+	defer func() {
+		if err := recover(); err != nil {
+			log.Printf("%s conn handler crashed with err : %s \nstack: %s", s.cfg.Protocol(), err, string(debug.Stack()))
+		}
+	}()
+	var err error
+	switch *s.cfg.ParentType {
+	case TYPE_TCP:
+		fallthrough
+	case TYPE_TLS:
+		err = s.OutToTCP(&inConn)
+	case TYPE_UDP:
+		err = s.OutToUDP(&inConn)
+	default:
+		err = fmt.Errorf("unkown parent type %s", *s.cfg.ParentType)
+	}
+	if err != nil {
+		log.Printf("connect to %s parent %s fail, ERR:%s", *s.cfg.ParentType, *s.cfg.Parent, err)
+		utils.CloseConn(&inConn)
+	}
+}
+func (s *TCP) OutToTCP(inConn *net.Conn) (err error) {
+	var outConn net.Conn
+	var _outConn interface{}
+	_outConn, err = s.outPool.Pool.Get()
+	if err == nil {
+		outConn = _outConn.(net.Conn)
+	}
+	if err != nil {
+		log.Printf("connect to %s , err:%s", *s.cfg.Parent, err)
+		utils.CloseConn(inConn)
+		return
+	}
+	inAddr := (*inConn).RemoteAddr().String()
+	inLocalAddr := (*inConn).LocalAddr().String()
+	outAddr := outConn.RemoteAddr().String()
+	outLocalAddr := outConn.LocalAddr().String()
+	utils.IoBind((*inConn), outConn, func(err error) {
+		log.Printf("conn %s - %s - %s -%s released", inAddr, inLocalAddr, outLocalAddr, outAddr)
+		utils.CloseConn(inConn)
+		utils.CloseConn(&outConn)
+	}, func(n int, d bool) {}, 0)
+	log.Printf("conn %s - %s - %s -%s connected", inAddr, inLocalAddr, outLocalAddr, outAddr)
+	return
+}
+func (s *TCP) OutToUDP(inConn *net.Conn) (err error) {
+	log.Printf("conn created , remote : %s ", (*inConn).RemoteAddr())
+	for {
+		srcAddr, body, err := utils.ReadUDPPacket(bufio.NewReader(*inConn))
+		if err == io.EOF || err == io.ErrUnexpectedEOF {
+			//log.Printf("connection %s released", srcAddr)
+			utils.CloseConn(inConn)
+			break
+		}
+		//log.Debugf("udp packet revecived:%s,%v", srcAddr, body)
+		dstAddr, err := net.ResolveUDPAddr("udp", *s.cfg.Parent)
+		if err != nil {
+			log.Printf("can't resolve address: %s", err)
+			utils.CloseConn(inConn)
+			break
+		}
+		clientSrcAddr := &net.UDPAddr{IP: net.IPv4zero, Port: 0}
+		conn, err := net.DialUDP("udp", clientSrcAddr, dstAddr)
+		if err != nil {
+			log.Printf("connect to udp %s fail,ERR:%s", dstAddr.String(), err)
+			continue
+		}
+		conn.SetDeadline(time.Now().Add(time.Millisecond * time.Duration(*s.cfg.Timeout)))
+		_, err = conn.Write(body)
+		if err != nil {
+			log.Printf("send udp packet to %s fail,ERR:%s", dstAddr.String(), err)
+			continue
+		}
+		//log.Debugf("send udp packet to %s success", dstAddr.String())
+		buf := make([]byte, 512)
+		len, _, err := conn.ReadFromUDP(buf)
+		if err != nil {
+			log.Printf("read udp response from %s fail ,ERR:%s", dstAddr.String(), err)
+			continue
+		}
+		respBody := buf[0:len]
+		//log.Debugf("revecived udp packet from %s , %v", dstAddr.String(), respBody)
+		_, err = (*inConn).Write(utils.UDPPacket(srcAddr, respBody))
+		if err != nil {
+			log.Printf("send udp response fail ,ERR:%s", err)
+			utils.CloseConn(inConn)
+			break
+		}
+		//log.Printf("send udp response success ,from:%s", dstAddr.String())
+	}
+	return
+
+}
+func (s *TCP) InitOutConnPool() {
+	if *s.cfg.ParentType == TYPE_TLS || *s.cfg.ParentType == TYPE_TCP {
+		//dur int, isTLS bool, certBytes, keyBytes []byte,
+		//parent string, timeout int, InitialCap int, MaxCap int
+		s.outPool = utils.NewOutPool(
+			*s.cfg.CheckParentInterval,
+			*s.cfg.ParentType == TYPE_TLS,
+			s.cfg.CertBytes, s.cfg.KeyBytes,
+			*s.cfg.Parent,
+			*s.cfg.Timeout,
+			*s.cfg.PoolSize,
+			*s.cfg.PoolSize*2,
+		)
+	}
+}

services/tunnel_bridge.go

@@ -0,0 +1,191 @@
+package services
+
+import (
+	"bufio"
+	"encoding/binary"
+	"log"
+	"net"
+	"proxy/utils"
+	"strconv"
+	"time"
+)
+
+type ServerConn struct {
+	ClientLocalAddr string //tcp:2.2.22:333@ID
+	Conn            *net.Conn
+	//Conn *utils.HeartbeatReadWriter
+}
+type TunnelBridge struct {
+	cfg                TunnelBridgeArgs
+	serverConns        utils.ConcurrentMap
+	clientControlConns utils.ConcurrentMap
+}
+
+func NewTunnelBridge() Service {
+	return &TunnelBridge{
+		cfg:                TunnelBridgeArgs{},
+		serverConns:        utils.NewConcurrentMap(),
+		clientControlConns: utils.NewConcurrentMap(),
+	}
+}
+
+func (s *TunnelBridge) InitService() {
+
+}
+func (s *TunnelBridge) Check() {
+	if s.cfg.CertBytes == nil || s.cfg.KeyBytes == nil {
+		log.Fatalf("cert and key file required")
+	}
+
+}
+func (s *TunnelBridge) StopService() {
+
+}
+func (s *TunnelBridge) Start(args interface{}) (err error) {
+	s.cfg = args.(TunnelBridgeArgs)
+	s.Check()
+	s.InitService()
+	host, port, _ := net.SplitHostPort(*s.cfg.Local)
+	p, _ := strconv.Atoi(port)
+	sc := utils.NewServerChannel(host, p)
+
+	err = sc.ListenTls(s.cfg.CertBytes, s.cfg.KeyBytes, func(inConn net.Conn) {
+		//log.Printf("connection from %s ", inConn.RemoteAddr())
+
+		reader := bufio.NewReader(inConn)
+		var connType uint8
+		err = binary.Read(reader, binary.LittleEndian, &connType)
+		if err != nil {
+			utils.CloseConn(&inConn)
+			return
+		}
+		//log.Printf("conn type %d", connType)
+
+		var key, clientLocalAddr, ID string
+		var connTypeStrMap = map[uint8]string{CONN_SERVER: "server", CONN_CLIENT: "client", CONN_CONTROL: "client"}
+		var keyLength uint16
+		err = binary.Read(reader, binary.LittleEndian, &keyLength)
+		if err != nil {
+			return
+		}
+
+		_key := make([]byte, keyLength)
+		n, err := reader.Read(_key)
+		if err != nil {
+			return
+		}
+		if n != int(keyLength) {
+			return
+		}
+		key = string(_key)
+		//log.Printf("conn key %s", key)
+
+		if connType != CONN_CONTROL {
+			var IDLength uint16
+			err = binary.Read(reader, binary.LittleEndian, &IDLength)
+			if err != nil {
+				return
+			}
+			_id := make([]byte, IDLength)
+			n, err := reader.Read(_id)
+			if err != nil {
+				return
+			}
+			if n != int(IDLength) {
+				return
+			}
+			ID = string(_id)
+
+			if connType == CONN_SERVER {
+				var addrLength uint16
+				err = binary.Read(reader, binary.LittleEndian, &addrLength)
+				if err != nil {
+					return
+				}
+				_addr := make([]byte, addrLength)
+				n, err = reader.Read(_addr)
+				if err != nil {
+					return
+				}
+				if n != int(addrLength) {
+					return
+				}
+				clientLocalAddr = string(_addr)
+			}
+		}
+		log.Printf("connection from %s , key: %s , id: %s", connTypeStrMap[connType], key, ID)
+
+		switch connType {
+		case CONN_SERVER:
+			// hb := utils.NewHeartbeatReadWriter(&inConn, 3, func(err error, hb *utils.HeartbeatReadWriter) {
+			// 	log.Printf("%s conn %s from server released", key, ID)
+			// 	s.serverConns.Remove(ID)
+			// })
+			addr := clientLocalAddr + "@" + ID
+			s.serverConns.Set(ID, ServerConn{
+				//Conn:            &hb,
+				Conn:            &inConn,
+				ClientLocalAddr: addr,
+			})
+			for {
+				item, ok := s.clientControlConns.Get(key)
+				if !ok {
+					log.Printf("client %s control conn not exists", key)
+					time.Sleep(time.Second * 3)
+					continue
+				}
+				_, err := (*item.(*net.Conn)).Write([]byte(addr))
+				if err != nil {
+					log.Printf("%s client control conn write signal fail, err: %s, retrying...", key, err)
+					time.Sleep(time.Second * 3)
+					continue
+				} else {
+					break
+				}
+			}
+		case CONN_CLIENT:
+			serverConnItem, ok := s.serverConns.Get(ID)
+			if !ok {
+				inConn.Close()
+				log.Printf("server conn %s exists", ID)
+				return
+			}
+			serverConn := serverConnItem.(ServerConn).Conn
+			// hw := utils.NewHeartbeatReadWriter(&inConn, 3, func(err error, hw *utils.HeartbeatReadWriter) {
+			// 	log.Printf("%s conn %s from client released", key, ID)
+			// 	hw.Close()
+			// })
+			utils.IoBind(*serverConn, inConn, func(err error) {
+				// utils.IoBind(serverConn, inConn, func(isSrcErr bool, err error) {
+				//serverConn.Close()
+				(*serverConn).Close()
+				utils.CloseConn(&inConn)
+				// hw.Close()
+				s.serverConns.Remove(ID)
+				log.Printf("conn %s released", ID)
+			}, func(i int, b bool) {}, 0)
+			log.Printf("conn %s created", ID)
+		case CONN_CONTROL:
+			if s.clientControlConns.Has(key) {
+				item, _ := s.clientControlConns.Get(key)
+				//(*item.(*utils.HeartbeatReadWriter)).Close()
+				(*item.(*net.Conn)).Close()
+			}
+			// hb := utils.NewHeartbeatReadWriter(&inConn, 3, func(err error, hb *utils.HeartbeatReadWriter) {
+			// 	log.Printf("client %s disconnected", key)
+			// 	s.clientControlConns.Remove(key)
+			// })
+			// s.clientControlConns.Set(key, &hb)
+			s.clientControlConns.Set(key, &inConn)
+			log.Printf("set client %s control conn", key)
+		}
+	})
+	if err != nil {
+		return
+	}
+	log.Printf("proxy on tunnel bridge mode %s", (*sc.Listener).Addr())
+	return
+}
+func (s *TunnelBridge) Clean() {
+	s.StopService()
+}

services/tunnel_client.go

@@ -0,0 +1,234 @@
+package services
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"proxy/utils"
+	"strings"
+	"time"
+)
+
+type TunnelClient struct {
+	cfg TunnelClientArgs
+}
+
+func NewTunnelClient() Service {
+	return &TunnelClient{
+		cfg: TunnelClientArgs{},
+	}
+}
+
+func (s *TunnelClient) InitService() {
+}
+func (s *TunnelClient) Check() {
+	if *s.cfg.Parent != "" {
+		log.Printf("use tls parent %s", *s.cfg.Parent)
+	} else {
+		log.Fatalf("parent required")
+	}
+	if s.cfg.CertBytes == nil || s.cfg.KeyBytes == nil {
+		log.Fatalf("cert and key file required")
+	}
+}
+func (s *TunnelClient) StopService() {
+}
+func (s *TunnelClient) Start(args interface{}) (err error) {
+	s.cfg = args.(TunnelClientArgs)
+	s.Check()
+	s.InitService()
+	log.Printf("proxy on tunnel client mode")
+	for {
+		ctrlConn, err := s.GetInConn(CONN_CONTROL, "")
+		if err != nil {
+			log.Printf("control connection err: %s", err)
+			time.Sleep(time.Second * 3)
+			utils.CloseConn(&ctrlConn)
+			continue
+		}
+		// rw := utils.NewHeartbeatReadWriter(&ctrlConn, 3, func(err error, hb *utils.HeartbeatReadWriter) {
+		// 	log.Printf("ctrlConn err %s", err)
+		// 	utils.CloseConn(&ctrlConn)
+		// })
+		for {
+			signal := make([]byte, 50)
+			// n, err := rw.Read(signal)
+			n, err := ctrlConn.Read(signal)
+			if err != nil {
+				utils.CloseConn(&ctrlConn)
+				log.Printf("read connection signal err: %s", err)
+				break
+			}
+			addr := string(signal[:n])
+			// log.Printf("n:%d addr:%s err:%s", n, addr, err)
+			// os.Exit(0)
+			log.Printf("signal revecived:%s", addr)
+			protocol := addr[:3]
+			atIndex := strings.Index(addr, "@")
+			ID := addr[atIndex+1:]
+			localAddr := addr[4:atIndex]
+			if protocol == "udp" {
+				go s.ServeUDP(localAddr, ID)
+			} else {
+				go s.ServeConn(localAddr, ID)
+			}
+		}
+	}
+}
+func (s *TunnelClient) Clean() {
+	s.StopService()
+}
+func (s *TunnelClient) GetInConn(typ uint8, ID string) (outConn net.Conn, err error) {
+	outConn, err = s.GetConn()
+	if err != nil {
+		err = fmt.Errorf("connection err: %s", err)
+		return
+	}
+	keyBytes := []byte(*s.cfg.Key)
+	keyLength := uint16(len(keyBytes))
+	pkg := new(bytes.Buffer)
+	binary.Write(pkg, binary.LittleEndian, typ)
+	binary.Write(pkg, binary.LittleEndian, keyLength)
+	binary.Write(pkg, binary.LittleEndian, keyBytes)
+	if ID != "" {
+		IDBytes := []byte(ID)
+		IDLength := uint16(len(IDBytes))
+		binary.Write(pkg, binary.LittleEndian, IDLength)
+		binary.Write(pkg, binary.LittleEndian, IDBytes)
+	}
+	_, err = outConn.Write(pkg.Bytes())
+	if err != nil {
+		err = fmt.Errorf("write connection data err: %s ,retrying...", err)
+		utils.CloseConn(&outConn)
+		return
+	}
+	return
+}
+func (s *TunnelClient) GetConn() (conn net.Conn, err error) {
+	var _conn tls.Conn
+	_conn, err = utils.TlsConnectHost(*s.cfg.Parent, *s.cfg.Timeout, s.cfg.CertBytes, s.cfg.KeyBytes)
+	if err == nil {
+		conn = net.Conn(&_conn)
+	}
+	return
+}
+func (s *TunnelClient) ServeUDP(localAddr, ID string) {
+	var inConn net.Conn
+	var err error
+	// for {
+	for {
+		inConn, err = s.GetInConn(CONN_CLIENT, ID)
+		if err != nil {
+			utils.CloseConn(&inConn)
+			log.Printf("connection err: %s, retrying...", err)
+			time.Sleep(time.Second * 3)
+			continue
+		} else {
+			break
+		}
+	}
+	log.Printf("conn %s created", ID)
+	// hw := utils.NewHeartbeatReadWriter(&inConn, 3, func(err error, hw *utils.HeartbeatReadWriter) {
+	// 	log.Printf("hw err %s", err)
+	// 	hw.Close()
+	// })
+	for {
+		// srcAddr, body, err := utils.ReadUDPPacket(&hw)
+		srcAddr, body, err := utils.ReadUDPPacket(inConn)
+		if err == io.EOF || err == io.ErrUnexpectedEOF {
+			log.Printf("connection %s released", ID)
+			utils.CloseConn(&inConn)
+			break
+		} else if err != nil {
+			log.Printf("udp packet revecived fail, err: %s", err)
+		} else {
+			log.Printf("udp packet revecived:%s,%v", srcAddr, body)
+			go s.processUDPPacket(&inConn, srcAddr, localAddr, body)
+		}
+
+	}
+	// }
+}
+func (s *TunnelClient) processUDPPacket(inConn *net.Conn, srcAddr, localAddr string, body []byte) {
+	dstAddr, err := net.ResolveUDPAddr("udp", localAddr)
+	if err != nil {
+		log.Printf("can't resolve address: %s", err)
+		utils.CloseConn(inConn)
+		return
+	}
+	clientSrcAddr := &net.UDPAddr{IP: net.IPv4zero, Port: 0}
+	conn, err := net.DialUDP("udp", clientSrcAddr, dstAddr)
+	if err != nil {
+		log.Printf("connect to udp %s fail,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	conn.SetDeadline(time.Now().Add(time.Millisecond * time.Duration(*s.cfg.Timeout)))
+	_, err = conn.Write(body)
+	if err != nil {
+		log.Printf("send udp packet to %s fail,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	//log.Printf("send udp packet to %s success", dstAddr.String())
+	buf := make([]byte, 1024)
+	length, _, err := conn.ReadFromUDP(buf)
+	if err != nil {
+		log.Printf("read udp response from %s fail ,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	respBody := buf[0:length]
+	log.Printf("revecived udp packet from %s , %v", dstAddr.String(), respBody)
+	bs := utils.UDPPacket(srcAddr, respBody)
+	_, err = (*inConn).Write(bs)
+	if err != nil {
+		log.Printf("send udp response fail ,ERR:%s", err)
+		utils.CloseConn(inConn)
+		return
+	}
+	log.Printf("send udp response success ,from:%s ,%d ,%v", dstAddr.String(), len(bs), bs)
+}
+func (s *TunnelClient) ServeConn(localAddr, ID string) {
+	var inConn, outConn net.Conn
+	var err error
+	for {
+		inConn, err = s.GetInConn(CONN_CLIENT, ID)
+		if err != nil {
+			utils.CloseConn(&inConn)
+			log.Printf("connection err: %s, retrying...", err)
+			time.Sleep(time.Second * 3)
+			continue
+		} else {
+			break
+		}
+	}
+
+	i := 0
+	for {
+		i++
+		outConn, err = utils.ConnectHost(localAddr, *s.cfg.Timeout)
+		if err == nil || i == 3 {
+			break
+		} else {
+			if i == 3 {
+				log.Printf("connect to %s err: %s, retrying...", localAddr, err)
+				time.Sleep(2 * time.Second)
+				continue
+			}
+		}
+	}
+	if err != nil {
+		utils.CloseConn(&inConn)
+		utils.CloseConn(&outConn)
+		log.Printf("build connection error, err: %s", err)
+		return
+	}
+	utils.IoBind(inConn, outConn, func(err error) {
+		log.Printf("conn %s released", ID)
+		utils.CloseConn(&inConn)
+		utils.CloseConn(&outConn)
+	}, func(i int, b bool) {}, 0)
+	log.Printf("conn %s created", ID)
+}

services/tunnel_server.go

@@ -0,0 +1,282 @@
+package services
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/binary"
+	"io"
+	"log"
+	"net"
+	"proxy/utils"
+	"runtime/debug"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type TunnelServer struct {
+	cfg    TunnelServerArgs
+	udpChn chan UDPItem
+	sc     utils.ServerChannel
+}
+
+type TunnelServerManager struct {
+	cfg    TunnelServerArgs
+	udpChn chan UDPItem
+	sc     utils.ServerChannel
+}
+
+func NewTunnelServerManager() Service {
+	return &TunnelServerManager{
+		cfg:    TunnelServerArgs{},
+		udpChn: make(chan UDPItem, 50000),
+	}
+}
+func (s *TunnelServerManager) Start(args interface{}) (err error) {
+	s.cfg = args.(TunnelServerArgs)
+	if *s.cfg.Parent != "" {
+		log.Printf("use tls parent %s", *s.cfg.Parent)
+	} else {
+		log.Fatalf("parent required")
+	}
+	//log.Printf("route:%v", *s.cfg.Route)
+	for _, info := range *s.cfg.Route {
+		_routeInfo := strings.Split(info, "@")
+		server := NewTunnelServer()
+		local := _routeInfo[0]
+		remote := _routeInfo[1]
+		err = server.Start(TunnelServerArgs{
+			Args:    s.cfg.Args,
+			Local:   &local,
+			IsUDP:   s.cfg.IsUDP,
+			Remote:  &remote,
+			Key:     s.cfg.Key,
+			Timeout: s.cfg.Timeout,
+		})
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+func (s *TunnelServerManager) Clean() {
+
+}
+func NewTunnelServer() Service {
+	return &TunnelServer{
+		cfg:    TunnelServerArgs{},
+		udpChn: make(chan UDPItem, 50000),
+	}
+}
+
+type UDPItem struct {
+	packet    *[]byte
+	localAddr *net.UDPAddr
+	srcAddr   *net.UDPAddr
+}
+
+func (s *TunnelServer) InitService() {
+	s.UDPConnDeamon()
+}
+func (s *TunnelServer) Check() {
+	if *s.cfg.Remote == "" {
+		log.Fatalf("remote required")
+	}
+	if s.cfg.CertBytes == nil || s.cfg.KeyBytes == nil {
+		log.Fatalf("cert and key file required")
+	}
+}
+func (s *TunnelServer) StopService() {
+}
+func (s *TunnelServer) Start(args interface{}) (err error) {
+	s.cfg = args.(TunnelServerArgs)
+	s.Check()
+	s.InitService()
+	host, port, _ := net.SplitHostPort(*s.cfg.Local)
+	p, _ := strconv.Atoi(port)
+	s.sc = utils.NewServerChannel(host, p)
+	if *s.cfg.IsUDP {
+		err = s.sc.ListenUDP(func(packet []byte, localAddr, srcAddr *net.UDPAddr) {
+			s.udpChn <- UDPItem{
+				packet:    &packet,
+				localAddr: localAddr,
+				srcAddr:   srcAddr,
+			}
+		})
+		if err != nil {
+			return
+		}
+		log.Printf("proxy on udp tunnel server mode %s", (*s.sc.UDPListener).LocalAddr())
+	} else {
+		err = s.sc.ListenTCP(func(inConn net.Conn) {
+			defer func() {
+				if err := recover(); err != nil {
+					log.Printf("tserver conn handler crashed with err : %s \nstack: %s", err, string(debug.Stack()))
+				}
+			}()
+			var outConn net.Conn
+			var ID string
+			for {
+				outConn, ID, err = s.GetOutConn("")
+				if err != nil {
+					utils.CloseConn(&outConn)
+					log.Printf("connect to %s fail, err: %s, retrying...", *s.cfg.Parent, err)
+					time.Sleep(time.Second * 3)
+					continue
+				} else {
+					break
+				}
+			}
+			// hb := utils.NewHeartbeatReadWriter(&outConn, 3, func(err error, hb *utils.HeartbeatReadWriter) {
+			// 	log.Printf("%s conn %s to bridge released", *s.cfg.Key, ID)
+			// 	hb.Close()
+			// })
+			// utils.IoBind(inConn, &hb, func(err error) {
+			utils.IoBind(inConn, outConn, func(err error) {
+				utils.CloseConn(&outConn)
+				utils.CloseConn(&inConn)
+				log.Printf("%s conn %s released", *s.cfg.Key, ID)
+			}, func(i int, b bool) {}, 0)
+
+			log.Printf("%s conn %s created", *s.cfg.Key, ID)
+		})
+		if err != nil {
+			return
+		}
+		log.Printf("proxy on tunnel server mode %s", (*s.sc.Listener).Addr())
+	}
+	return
+}
+func (s *TunnelServer) Clean() {
+	s.StopService()
+}
+func (s *TunnelServer) GetOutConn(id string) (outConn net.Conn, ID string, err error) {
+	outConn, err = s.GetConn()
+	if err != nil {
+		log.Printf("connection err: %s", err)
+		return
+	}
+	keyBytes := []byte(*s.cfg.Key)
+	keyLength := uint16(len(keyBytes))
+	ID = utils.Uniqueid()
+	IDBytes := []byte(ID)
+	if id != "" {
+		ID = id
+		IDBytes = []byte(id)
+	}
+	IDLength := uint16(len(IDBytes))
+	remoteAddr := []byte("tcp:" + *s.cfg.Remote)
+	if *s.cfg.IsUDP {
+		remoteAddr = []byte("udp:" + *s.cfg.Remote)
+	}
+	remoteAddrLength := uint16(len(remoteAddr))
+	pkg := new(bytes.Buffer)
+	binary.Write(pkg, binary.LittleEndian, CONN_SERVER)
+	binary.Write(pkg, binary.LittleEndian, keyLength)
+	binary.Write(pkg, binary.LittleEndian, keyBytes)
+	binary.Write(pkg, binary.LittleEndian, IDLength)
+	binary.Write(pkg, binary.LittleEndian, IDBytes)
+	binary.Write(pkg, binary.LittleEndian, remoteAddrLength)
+	binary.Write(pkg, binary.LittleEndian, remoteAddr)
+	_, err = outConn.Write(pkg.Bytes())
+	if err != nil {
+		log.Printf("write connection data err: %s ,retrying...", err)
+		utils.CloseConn(&outConn)
+		return
+	}
+	return
+}
+func (s *TunnelServer) GetConn() (conn net.Conn, err error) {
+	var _conn tls.Conn
+	_conn, err = utils.TlsConnectHost(*s.cfg.Parent, *s.cfg.Timeout, s.cfg.CertBytes, s.cfg.KeyBytes)
+	if err == nil {
+		conn = net.Conn(&_conn)
+	}
+	return
+}
+func (s *TunnelServer) UDPConnDeamon() {
+	go func() {
+		defer func() {
+			if err := recover(); err != nil {
+				log.Printf("udp conn deamon crashed with err : %s \nstack: %s", err, string(debug.Stack()))
+			}
+		}()
+		var outConn net.Conn
+		// var hb utils.HeartbeatReadWriter
+		var ID string
+		var cmdChn = make(chan bool, 1)
+
+		var err error
+		for {
+			item := <-s.udpChn
+		RETRY:
+			if outConn == nil {
+				for {
+					outConn, ID, err = s.GetOutConn("")
+					if err != nil {
+						cmdChn <- true
+						outConn = nil
+						utils.CloseConn(&outConn)
+						log.Printf("connect to %s fail, err: %s, retrying...", *s.cfg.Parent, err)
+						time.Sleep(time.Second * 3)
+						continue
+					} else {
+						// hb = utils.NewHeartbeatReadWriter(&outConn, 3, func(err error, hb *utils.HeartbeatReadWriter) {
+						// 	log.Printf("%s conn %s to bridge released", *s.cfg.Key, ID)
+						// 	hb.Close()
+						// })
+						// go func(outConn net.Conn, hb utils.HeartbeatReadWriter, ID string) {
+						go func(outConn net.Conn, ID string) {
+							go func() {
+								<-cmdChn
+								outConn.Close()
+							}()
+							for {
+								//srcAddrFromConn, body, err := utils.ReadUDPPacket(&hb)
+								srcAddrFromConn, body, err := utils.ReadUDPPacket(outConn)
+								if err == io.EOF || err == io.ErrUnexpectedEOF {
+									log.Printf("UDP deamon connection %s exited", ID)
+									break
+								}
+								if err != nil {
+									log.Printf("parse revecived udp packet fail, err: %s ,%v", err, body)
+									continue
+								}
+								//log.Printf("udp packet revecived over parent , local:%s", srcAddrFromConn)
+								_srcAddr := strings.Split(srcAddrFromConn, ":")
+								if len(_srcAddr) != 2 {
+									log.Printf("parse revecived udp packet fail, addr error : %s", srcAddrFromConn)
+									continue
+								}
+								port, _ := strconv.Atoi(_srcAddr[1])
+								dstAddr := &net.UDPAddr{IP: net.ParseIP(_srcAddr[0]), Port: port}
+								_, err = s.sc.UDPListener.WriteToUDP(body, dstAddr)
+								if err != nil {
+									log.Printf("udp response to local %s fail,ERR:%s", srcAddrFromConn, err)
+									continue
+								}
+								//log.Printf("udp response to local %s success , %v", srcAddrFromConn, body)
+							}
+							// }(outConn, hb, ID)
+						}(outConn, ID)
+						break
+					}
+				}
+			}
+			outConn.SetWriteDeadline(time.Now().Add(time.Second))
+			// _, err = hb.Write(utils.UDPPacket(item.srcAddr.String(), *item.packet))
+			_, err = outConn.Write(utils.UDPPacket(item.srcAddr.String(), *item.packet))
+			// writer := bufio.NewWriter(outConn)
+			// writer.Write(utils.UDPPacket(item.srcAddr.String(), *item.packet))
+			// err := writer.Flush()
+			outConn.SetWriteDeadline(time.Time{})
+			if err != nil {
+				utils.CloseConn(&outConn)
+				outConn = nil
+				log.Printf("write udp packet to %s fail ,flush err:%s ,retrying...", *s.cfg.Parent, err)
+				goto RETRY
+			}
+			//log.Printf("write packet %v", *item.packet)
+		}
+	}()
+}

services/udp.go

@@ -0,0 +1,211 @@
+package services
+
+import (
+	"bufio"
+	"fmt"
+	"hash/crc32"
+	"io"
+	"log"
+	"net"
+	"proxy/utils"
+	"runtime/debug"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type UDP struct {
+	p       utils.ConcurrentMap
+	outPool utils.OutPool
+	cfg     UDPArgs
+	sc      *utils.ServerChannel
+}
+
+func NewUDP() Service {
+	return &UDP{
+		outPool: utils.OutPool{},
+		p:       utils.NewConcurrentMap(),
+	}
+}
+func (s *UDP) InitService() {
+	if *s.cfg.ParentType != TYPE_UDP {
+		s.InitOutConnPool()
+	}
+}
+func (s *UDP) StopService() {
+	if s.outPool.Pool != nil {
+		s.outPool.Pool.ReleaseAll()
+	}
+}
+func (s *UDP) Start(args interface{}) (err error) {
+	s.cfg = args.(UDPArgs)
+	if *s.cfg.Parent != "" {
+		log.Printf("use %s parent %s", *s.cfg.ParentType, *s.cfg.Parent)
+	} else {
+		log.Fatalf("parent required for udp %s", *s.cfg.Local)
+	}
+
+	s.InitService()
+
+	host, port, _ := net.SplitHostPort(*s.cfg.Local)
+	p, _ := strconv.Atoi(port)
+	sc := utils.NewServerChannel(host, p)
+	s.sc = &sc
+	err = sc.ListenUDP(s.callback)
+	if err != nil {
+		return
+	}
+	log.Printf("udp proxy on %s", (*sc.UDPListener).LocalAddr())
+	return
+}
+
+func (s *UDP) Clean() {
+	s.StopService()
+}
+func (s *UDP) callback(packet []byte, localAddr, srcAddr *net.UDPAddr) {
+	defer func() {
+		if err := recover(); err != nil {
+			log.Printf("udp conn handler crashed with err : %s \nstack: %s", err, string(debug.Stack()))
+		}
+	}()
+	var err error
+	switch *s.cfg.ParentType {
+	case TYPE_TCP:
+		fallthrough
+	case TYPE_TLS:
+		err = s.OutToTCP(packet, localAddr, srcAddr)
+	case TYPE_UDP:
+		err = s.OutToUDP(packet, localAddr, srcAddr)
+	default:
+		err = fmt.Errorf("unkown parent type %s", *s.cfg.ParentType)
+	}
+	if err != nil {
+		log.Printf("connect to %s parent %s fail, ERR:%s", *s.cfg.ParentType, *s.cfg.Parent, err)
+	}
+}
+func (s *UDP) GetConn(connKey string) (conn net.Conn, isNew bool, err error) {
+	isNew = !s.p.Has(connKey)
+	var _conn interface{}
+	if isNew {
+		_conn, err = s.outPool.Pool.Get()
+		if err != nil {
+			return nil, false, err
+		}
+		s.p.Set(connKey, _conn)
+	} else {
+		_conn, _ = s.p.Get(connKey)
+	}
+	conn = _conn.(net.Conn)
+	return
+}
+func (s *UDP) OutToTCP(packet []byte, localAddr, srcAddr *net.UDPAddr) (err error) {
+	numLocal := crc32.ChecksumIEEE([]byte(localAddr.String()))
+	numSrc := crc32.ChecksumIEEE([]byte(srcAddr.String()))
+	mod := uint32(*s.cfg.PoolSize)
+	if mod == 0 {
+		mod = 10
+	}
+	connKey := uint64((numLocal/10)*10 + numSrc%mod)
+	conn, isNew, err := s.GetConn(fmt.Sprintf("%d", connKey))
+	if err != nil {
+		log.Printf("upd get conn to %s parent %s fail, ERR:%s", *s.cfg.ParentType, *s.cfg.Parent, err)
+		return
+	}
+	if isNew {
+		go func() {
+			defer func() {
+				if err := recover(); err != nil {
+					log.Printf("udp conn handler out to tcp crashed with err : %s \nstack: %s", err, string(debug.Stack()))
+				}
+			}()
+			log.Printf("conn %d created , local: %s", connKey, srcAddr.String())
+			for {
+				srcAddrFromConn, body, err := utils.ReadUDPPacket(bufio.NewReader(conn))
+				if err == io.EOF || err == io.ErrUnexpectedEOF {
+					//log.Printf("connection %d released", connKey)
+					s.p.Remove(fmt.Sprintf("%d", connKey))
+					break
+				}
+				if err != nil {
+					log.Printf("parse revecived udp packet fail, err: %s", err)
+					continue
+				}
+				//log.Printf("udp packet revecived over parent , local:%s", srcAddrFromConn)
+				_srcAddr := strings.Split(srcAddrFromConn, ":")
+				if len(_srcAddr) != 2 {
+					log.Printf("parse revecived udp packet fail, addr error : %s", srcAddrFromConn)
+					continue
+				}
+				port, _ := strconv.Atoi(_srcAddr[1])
+				dstAddr := &net.UDPAddr{IP: net.ParseIP(_srcAddr[0]), Port: port}
+				_, err = s.sc.UDPListener.WriteToUDP(body, dstAddr)
+				if err != nil {
+					log.Printf("udp response to local %s fail,ERR:%s", srcAddr, err)
+					continue
+				}
+				//log.Printf("udp response to local %s success", srcAddr)
+			}
+		}()
+	}
+	//log.Printf("select conn %d , local: %s", connKey, srcAddr.String())
+	writer := bufio.NewWriter(conn)
+	//fmt.Println(conn, writer)
+	writer.Write(utils.UDPPacket(srcAddr.String(), packet))
+	err = writer.Flush()
+	if err != nil {
+		log.Printf("write udp packet to %s fail ,flush err:%s", *s.cfg.Parent, err)
+		return
+	}
+	//log.Printf("write packet %v", packet)
+	return
+}
+func (s *UDP) OutToUDP(packet []byte, localAddr, srcAddr *net.UDPAddr) (err error) {
+	//log.Printf("udp packet revecived:%s,%v", srcAddr, packet)
+	dstAddr, err := net.ResolveUDPAddr("udp", *s.cfg.Parent)
+	if err != nil {
+		log.Printf("resolve udp addr %s fail  fail,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	clientSrcAddr := &net.UDPAddr{IP: net.IPv4zero, Port: 0}
+	conn, err := net.DialUDP("udp", clientSrcAddr, dstAddr)
+	if err != nil {
+		log.Printf("connect to udp %s fail,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	conn.SetDeadline(time.Now().Add(time.Millisecond * time.Duration(*s.cfg.Timeout)))
+	_, err = conn.Write(packet)
+	if err != nil {
+		log.Printf("send udp packet to %s fail,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	//log.Printf("send udp packet to %s success", dstAddr.String())
+	buf := make([]byte, 512)
+	len, _, err := conn.ReadFromUDP(buf)
+	if err != nil {
+		log.Printf("read udp response from %s fail ,ERR:%s", dstAddr.String(), err)
+		return
+	}
+	//log.Printf("revecived udp packet from %s , %v", dstAddr.String(), respBody)
+	_, err = s.sc.UDPListener.WriteToUDP(buf[0:len], srcAddr)
+	if err != nil {
+		log.Printf("send udp response to cluster fail ,ERR:%s", err)
+		return
+	}
+	//log.Printf("send udp response to cluster success ,from:%s", dstAddr.String())
+	return
+}
+func (s *UDP) InitOutConnPool() {
+	if *s.cfg.ParentType == TYPE_TLS || *s.cfg.ParentType == TYPE_TCP {
+		//dur int, isTLS bool, certBytes, keyBytes []byte,
+		//parent string, timeout int, InitialCap int, MaxCap int
+		s.outPool = utils.NewOutPool(
+			*s.cfg.CheckParentInterval,
+			*s.cfg.ParentType == TYPE_TLS,
+			s.cfg.CertBytes, s.cfg.KeyBytes,
+			*s.cfg.Parent,
+			*s.cfg.Timeout,
+			*s.cfg.PoolSize,
+			*s.cfg.PoolSize*2,
+		)
+	}
+}

utils/functions.go

@@ -0,0 +1,370 @@
+package utils
+
+import (
+	"bufio"
+	"bytes"
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"log"
+	"math/rand"
+	"net"
+	"net/http"
+	"os"
+	"os/exec"
+	"sync"
+
+	"runtime/debug"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func IoBind(dst io.ReadWriter, src io.ReadWriter, fn func(err error), cfn func(count int, isPositive bool), bytesPreSec float64) {
+	var one = &sync.Once{}
+	go func() {
+		defer func() {
+			if e := recover(); e != nil {
+				log.Printf("IoBind crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+			}
+		}()
+		var err error
+		if bytesPreSec > 0 {
+			newreader := NewReader(src)
+			newreader.SetRateLimit(bytesPreSec)
+			_, err = ioCopy(dst, newreader, func(c int) {
+				cfn(c, false)
+			})
+
+		} else {
+			_, err = ioCopy(dst, src, func(c int) {
+				cfn(c, false)
+			})
+		}
+		if err != nil {
+			one.Do(func() {
+				fn(err)
+			})
+		}
+	}()
+	go func() {
+		defer func() {
+			if e := recover(); e != nil {
+				log.Printf("IoBind crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+			}
+		}()
+		var err error
+		if bytesPreSec > 0 {
+			newReader := NewReader(dst)
+			newReader.SetRateLimit(bytesPreSec)
+			_, err = ioCopy(src, newReader, func(c int) {
+				cfn(c, true)
+			})
+		} else {
+			_, err = ioCopy(src, dst, func(c int) {
+				cfn(c, true)
+			})
+		}
+		if err != nil {
+			one.Do(func() {
+				fn(err)
+			})
+		}
+	}()
+}
+func ioCopy(dst io.Writer, src io.Reader, fn ...func(count int)) (written int64, err error) {
+	buf := make([]byte, 32*1024)
+	for {
+		nr, er := src.Read(buf)
+		if nr > 0 {
+			nw, ew := dst.Write(buf[0:nr])
+			if nw > 0 {
+				written += int64(nw)
+				if len(fn) == 1 {
+					fn[0](nw)
+				}
+			}
+			if ew != nil {
+				err = ew
+				break
+			}
+			if nr != nw {
+				err = io.ErrShortWrite
+				break
+			}
+		}
+		if er != nil {
+			err = er
+			break
+		}
+	}
+	return written, err
+}
+func TlsConnectHost(host string, timeout int, certBytes, keyBytes []byte) (conn tls.Conn, err error) {
+	h := strings.Split(host, ":")
+	port, _ := strconv.Atoi(h[1])
+	return TlsConnect(h[0], port, timeout, certBytes, keyBytes)
+}
+
+func TlsConnect(host string, port, timeout int, certBytes, keyBytes []byte) (conn tls.Conn, err error) {
+	conf, err := getRequestTlsConfig(certBytes, keyBytes)
+	if err != nil {
+		return
+	}
+	_conn, err := net.DialTimeout("tcp", fmt.Sprintf("%s:%d", host, port), time.Duration(timeout)*time.Millisecond)
+	if err != nil {
+		return
+	}
+	return *tls.Client(_conn, conf), err
+}
+func getRequestTlsConfig(certBytes, keyBytes []byte) (conf *tls.Config, err error) {
+	var cert tls.Certificate
+	cert, err = tls.X509KeyPair(certBytes, keyBytes)
+	if err != nil {
+		return
+	}
+	serverCertPool := x509.NewCertPool()
+	ok := serverCertPool.AppendCertsFromPEM(certBytes)
+	if !ok {
+		err = errors.New("failed to parse root certificate")
+	}
+	conf = &tls.Config{
+		RootCAs:            serverCertPool,
+		Certificates:       []tls.Certificate{cert},
+		ServerName:         "proxy",
+		InsecureSkipVerify: false,
+	}
+	return
+}
+
+func ConnectHost(hostAndPort string, timeout int) (conn net.Conn, err error) {
+	conn, err = net.DialTimeout("tcp", hostAndPort, time.Duration(timeout)*time.Millisecond)
+	return
+}
+func ListenTls(ip string, port int, certBytes, keyBytes []byte) (ln *net.Listener, err error) {
+	var cert tls.Certificate
+	cert, err = tls.X509KeyPair(certBytes, keyBytes)
+	if err != nil {
+		return
+	}
+	clientCertPool := x509.NewCertPool()
+	ok := clientCertPool.AppendCertsFromPEM(certBytes)
+	if !ok {
+		err = errors.New("failed to parse root certificate")
+	}
+	config := &tls.Config{
+		ClientCAs:    clientCertPool,
+		ServerName:   "proxy",
+		Certificates: []tls.Certificate{cert},
+		ClientAuth:   tls.RequireAndVerifyClientCert,
+	}
+	_ln, err := tls.Listen("tcp", fmt.Sprintf("%s:%d", ip, port), config)
+	if err == nil {
+		ln = &_ln
+	}
+	return
+}
+func PathExists(_path string) bool {
+	_, err := os.Stat(_path)
+	if err != nil && os.IsNotExist(err) {
+		return false
+	}
+	return true
+}
+func HTTPGet(URL string, timeout int) (err error) {
+	tr := &http.Transport{}
+	var resp *http.Response
+	var client *http.Client
+	defer func() {
+		if resp != nil && resp.Body != nil {
+			resp.Body.Close()
+		}
+		tr.CloseIdleConnections()
+	}()
+	client = &http.Client{Timeout: time.Millisecond * time.Duration(timeout), Transport: tr}
+	resp, err = client.Get(URL)
+	if err != nil {
+		return
+	}
+	return
+}
+
+func CloseConn(conn *net.Conn) {
+	if conn != nil && *conn != nil {
+		(*conn).SetDeadline(time.Now().Add(time.Millisecond))
+		(*conn).Close()
+	}
+}
+func Keygen() (err error) {
+	cmd := exec.Command("sh", "-c", "openssl genrsa -out proxy.key 2048")
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		log.Printf("err:%s", err)
+		return
+	}
+	fmt.Println(string(out))
+	cmd = exec.Command("sh", "-c", `openssl req -new -key proxy.key -x509 -days 3650 -out proxy.crt -subj /C=CN/ST=BJ/O="Localhost Ltd"/CN=proxy`)
+	out, err = cmd.CombinedOutput()
+	if err != nil {
+		log.Printf("err:%s", err)
+		return
+	}
+	fmt.Println(string(out))
+	return
+}
+func GetAllInterfaceAddr() ([]net.IP, error) {
+
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		return nil, err
+	}
+	addresses := []net.IP{}
+	for _, iface := range ifaces {
+
+		if iface.Flags&net.FlagUp == 0 {
+			continue // interface down
+		}
+		// if iface.Flags&net.FlagLoopback != 0 {
+		// 	continue // loopback interface
+		// }
+		addrs, err := iface.Addrs()
+		if err != nil {
+			continue
+		}
+
+		for _, addr := range addrs {
+			var ip net.IP
+			switch v := addr.(type) {
+			case *net.IPNet:
+				ip = v.IP
+			case *net.IPAddr:
+				ip = v.IP
+			}
+			// if ip == nil || ip.IsLoopback() {
+			// 	continue
+			// }
+			ip = ip.To4()
+			if ip == nil {
+				continue // not an ipv4 address
+			}
+			addresses = append(addresses, ip)
+		}
+	}
+	if len(addresses) == 0 {
+		return nil, fmt.Errorf("no address Found, net.InterfaceAddrs: %v", addresses)
+	}
+	//only need first
+	return addresses, nil
+}
+func UDPPacket(srcAddr string, packet []byte) []byte {
+	addrBytes := []byte(srcAddr)
+	addrLength := uint16(len(addrBytes))
+	bodyLength := uint16(len(packet))
+	//log.Printf("build packet : addr len %d, body len %d", addrLength, bodyLength)
+	pkg := new(bytes.Buffer)
+	binary.Write(pkg, binary.LittleEndian, addrLength)
+	binary.Write(pkg, binary.LittleEndian, addrBytes)
+	binary.Write(pkg, binary.LittleEndian, bodyLength)
+	binary.Write(pkg, binary.LittleEndian, packet)
+	return pkg.Bytes()
+}
+func ReadUDPPacket(_reader io.Reader) (srcAddr string, packet []byte, err error) {
+	reader := bufio.NewReader(_reader)
+	var addrLength uint16
+	var bodyLength uint16
+	err = binary.Read(reader, binary.LittleEndian, &addrLength)
+	if err != nil {
+		return
+	}
+	_srcAddr := make([]byte, addrLength)
+	n, err := reader.Read(_srcAddr)
+	if err != nil {
+		return
+	}
+	if n != int(addrLength) {
+		err = fmt.Errorf("n != int(addrLength), %d,%d", n, addrLength)
+		return
+	}
+	srcAddr = string(_srcAddr)
+
+	err = binary.Read(reader, binary.LittleEndian, &bodyLength)
+	if err != nil {
+
+		return
+	}
+	packet = make([]byte, bodyLength)
+	n, err = reader.Read(packet)
+	if err != nil {
+		return
+	}
+	if n != int(bodyLength) {
+		err = fmt.Errorf("n != int(bodyLength), %d,%d", n, bodyLength)
+		return
+	}
+	return
+}
+func Uniqueid() string {
+	var src = rand.NewSource(time.Now().UnixNano())
+	s := fmt.Sprintf("%d", src.Int63())
+	return s[len(s)-5:len(s)-1] + fmt.Sprintf("%d", uint64(time.Now().UnixNano()))[8:]
+}
+
+// type sockaddr struct {
+// 	family uint16
+// 	data   [14]byte
+// }
+
+// const SO_ORIGINAL_DST = 80
+
+// realServerAddress returns an intercepted connection's original destination.
+// func realServerAddress(conn *net.Conn) (string, error) {
+// 	tcpConn, ok := (*conn).(*net.TCPConn)
+// 	if !ok {
+// 		return "", errors.New("not a TCPConn")
+// 	}
+
+// 	file, err := tcpConn.File()
+// 	if err != nil {
+// 		return "", err
+// 	}
+
+// 	// To avoid potential problems from making the socket non-blocking.
+// 	tcpConn.Close()
+// 	*conn, err = net.FileConn(file)
+// 	if err != nil {
+// 		return "", err
+// 	}
+
+// 	defer file.Close()
+// 	fd := file.Fd()
+
+// 	var addr sockaddr
+// 	size := uint32(unsafe.Sizeof(addr))
+// 	err = getsockopt(int(fd), syscall.SOL_IP, SO_ORIGINAL_DST, uintptr(unsafe.Pointer(&addr)), &size)
+// 	if err != nil {
+// 		return "", err
+// 	}
+
+// 	var ip net.IP
+// 	switch addr.family {
+// 	case syscall.AF_INET:
+// 		ip = addr.data[2:6]
+// 	default:
+// 		return "", errors.New("unrecognized address family")
+// 	}
+
+// 	port := int(addr.data[0])<<8 + int(addr.data[1])
+
+// 	return net.JoinHostPort(ip.String(), strconv.Itoa(port)), nil
+// }
+
+// func getsockopt(s int, level int, name int, val uintptr, vallen *uint32) (err error) {
+// 	_, _, e1 := syscall.Syscall6(syscall.SYS_GETSOCKOPT, uintptr(s), uintptr(level), uintptr(name), uintptr(val), uintptr(unsafe.Pointer(vallen)), 0)
+// 	if e1 != 0 {
+// 		err = e1
+// 	}
+// 	return
+// }

utils/io-limiter.go

@@ -0,0 +1,97 @@
+package utils
+
+import (
+	"context"
+	"io"
+	"time"
+
+	"golang.org/x/time/rate"
+)
+
+const burstLimit = 1000 * 1000 * 1000
+
+type Reader struct {
+	r       io.Reader
+	limiter *rate.Limiter
+	ctx     context.Context
+}
+
+type Writer struct {
+	w       io.Writer
+	limiter *rate.Limiter
+	ctx     context.Context
+}
+
+// NewReader returns a reader that implements io.Reader with rate limiting.
+func NewReader(r io.Reader) *Reader {
+	return &Reader{
+		r:   r,
+		ctx: context.Background(),
+	}
+}
+
+// NewReaderWithContext returns a reader that implements io.Reader with rate limiting.
+func NewReaderWithContext(r io.Reader, ctx context.Context) *Reader {
+	return &Reader{
+		r:   r,
+		ctx: ctx,
+	}
+}
+
+// NewWriter returns a writer that implements io.Writer with rate limiting.
+func NewWriter(w io.Writer) *Writer {
+	return &Writer{
+		w:   w,
+		ctx: context.Background(),
+	}
+}
+
+// NewWriterWithContext returns a writer that implements io.Writer with rate limiting.
+func NewWriterWithContext(w io.Writer, ctx context.Context) *Writer {
+	return &Writer{
+		w:   w,
+		ctx: ctx,
+	}
+}
+
+// SetRateLimit sets rate limit (bytes/sec) to the reader.
+func (s *Reader) SetRateLimit(bytesPerSec float64) {
+	s.limiter = rate.NewLimiter(rate.Limit(bytesPerSec), burstLimit)
+	s.limiter.AllowN(time.Now(), burstLimit) // spend initial burst
+}
+
+// Read reads bytes into p.
+func (s *Reader) Read(p []byte) (int, error) {
+	if s.limiter == nil {
+		return s.r.Read(p)
+	}
+	n, err := s.r.Read(p)
+	if err != nil {
+		return n, err
+	}
+	if err := s.limiter.WaitN(s.ctx, n); err != nil {
+		return n, err
+	}
+	return n, nil
+}
+
+// SetRateLimit sets rate limit (bytes/sec) to the writer.
+func (s *Writer) SetRateLimit(bytesPerSec float64) {
+	s.limiter = rate.NewLimiter(rate.Limit(bytesPerSec), burstLimit)
+	s.limiter.AllowN(time.Now(), burstLimit) // spend initial burst
+}
+
+// Write writes bytes from p.
+func (s *Writer) Write(p []byte) (int, error) {
+	if s.limiter == nil {
+		return s.w.Write(p)
+	}
+	n, err := s.w.Write(p)
+	if err != nil {
+		return n, err
+	}
+	if err := s.limiter.WaitN(s.ctx, n); err != nil {
+		return n, err
+	}
+	return n, err
+}

utils/map.go

@@ -0,0 +1,315 @@
+package utils
+
+import (
+	"encoding/json"
+	"sync"
+)
+
+var SHARD_COUNT = 32
+
+// A "thread" safe map of type string:Anything.
+// To avoid lock bottlenecks this map is dived to several (SHARD_COUNT) map shards.
+type ConcurrentMap []*ConcurrentMapShared
+
+// A "thread" safe string to anything map.
+type ConcurrentMapShared struct {
+	items        map[string]interface{}
+	sync.RWMutex // Read Write mutex, guards access to internal map.
+}
+
+// Creates a new concurrent map.
+func NewConcurrentMap() ConcurrentMap {
+	m := make(ConcurrentMap, SHARD_COUNT)
+	for i := 0; i < SHARD_COUNT; i++ {
+		m[i] = &ConcurrentMapShared{items: make(map[string]interface{})}
+	}
+	return m
+}
+
+// Returns shard under given key
+func (m ConcurrentMap) GetShard(key string) *ConcurrentMapShared {
+	return m[uint(fnv32(key))%uint(SHARD_COUNT)]
+}
+
+func (m ConcurrentMap) MSet(data map[string]interface{}) {
+	for key, value := range data {
+		shard := m.GetShard(key)
+		shard.Lock()
+		shard.items[key] = value
+		shard.Unlock()
+	}
+}
+
+// Sets the given value under the specified key.
+func (m ConcurrentMap) Set(key string, value interface{}) {
+	// Get map shard.
+	shard := m.GetShard(key)
+	shard.Lock()
+	shard.items[key] = value
+	shard.Unlock()
+}
+
+// Callback to return new element to be inserted into the map
+// It is called while lock is held, therefore it MUST NOT
+// try to access other keys in same map, as it can lead to deadlock since
+// Go sync.RWLock is not reentrant
+type UpsertCb func(exist bool, valueInMap interface{}, newValue interface{}) interface{}
+
+// Insert or Update - updates existing element or inserts a new one using UpsertCb
+func (m ConcurrentMap) Upsert(key string, value interface{}, cb UpsertCb) (res interface{}) {
+	shard := m.GetShard(key)
+	shard.Lock()
+	v, ok := shard.items[key]
+	res = cb(ok, v, value)
+	shard.items[key] = res
+	shard.Unlock()
+	return res
+}
+
+// Sets the given value under the specified key if no value was associated with it.
+func (m ConcurrentMap) SetIfAbsent(key string, value interface{}) bool {
+	// Get map shard.
+	shard := m.GetShard(key)
+	shard.Lock()
+	_, ok := shard.items[key]
+	if !ok {
+		shard.items[key] = value
+	}
+	shard.Unlock()
+	return !ok
+}
+
+// Retrieves an element from map under given key.
+func (m ConcurrentMap) Get(key string) (interface{}, bool) {
+	// Get shard
+	shard := m.GetShard(key)
+	shard.RLock()
+	// Get item from shard.
+	val, ok := shard.items[key]
+	shard.RUnlock()
+	return val, ok
+}
+
+// Returns the number of elements within the map.
+func (m ConcurrentMap) Count() int {
+	count := 0
+	for i := 0; i < SHARD_COUNT; i++ {
+		shard := m[i]
+		shard.RLock()
+		count += len(shard.items)
+		shard.RUnlock()
+	}
+	return count
+}
+
+// Looks up an item under specified key
+func (m ConcurrentMap) Has(key string) bool {
+	// Get shard
+	shard := m.GetShard(key)
+	shard.RLock()
+	// See if element is within shard.
+	_, ok := shard.items[key]
+	shard.RUnlock()
+	return ok
+}
+
+// Removes an element from the map.
+func (m ConcurrentMap) Remove(key string) {
+	// Try to get shard.
+	shard := m.GetShard(key)
+	shard.Lock()
+	delete(shard.items, key)
+	shard.Unlock()
+}
+
+// Removes an element from the map and returns it
+func (m ConcurrentMap) Pop(key string) (v interface{}, exists bool) {
+	// Try to get shard.
+	shard := m.GetShard(key)
+	shard.Lock()
+	v, exists = shard.items[key]
+	delete(shard.items, key)
+	shard.Unlock()
+	return v, exists
+}
+
+// Checks if map is empty.
+func (m ConcurrentMap) IsEmpty() bool {
+	return m.Count() == 0
+}
+
+// Used by the Iter & IterBuffered functions to wrap two variables together over a channel,
+type Tuple struct {
+	Key string
+	Val interface{}
+}
+
+// Returns an iterator which could be used in a for range loop.
+//
+// Deprecated: using IterBuffered() will get a better performence
+func (m ConcurrentMap) Iter() <-chan Tuple {
+	chans := snapshot(m)
+	ch := make(chan Tuple)
+	go fanIn(chans, ch)
+	return ch
+}
+
+// Returns a buffered iterator which could be used in a for range loop.
+func (m ConcurrentMap) IterBuffered() <-chan Tuple {
+	chans := snapshot(m)
+	total := 0
+	for _, c := range chans {
+		total += cap(c)
+	}
+	ch := make(chan Tuple, total)
+	go fanIn(chans, ch)
+	return ch
+}
+
+// Returns a array of channels that contains elements in each shard,
+// which likely takes a snapshot of `m`.
+// It returns once the size of each buffered channel is determined,
+// before all the channels are populated using goroutines.
+func snapshot(m ConcurrentMap) (chans []chan Tuple) {
+	chans = make([]chan Tuple, SHARD_COUNT)
+	wg := sync.WaitGroup{}
+	wg.Add(SHARD_COUNT)
+	// Foreach shard.
+	for index, shard := range m {
+		go func(index int, shard *ConcurrentMapShared) {
+			// Foreach key, value pair.
+			shard.RLock()
+			chans[index] = make(chan Tuple, len(shard.items))
+			wg.Done()
+			for key, val := range shard.items {
+				chans[index] <- Tuple{key, val}
+			}
+			shard.RUnlock()
+			close(chans[index])
+		}(index, shard)
+	}
+	wg.Wait()
+	return chans
+}
+
+// fanIn reads elements from channels `chans` into channel `out`
+func fanIn(chans []chan Tuple, out chan Tuple) {
+	wg := sync.WaitGroup{}
+	wg.Add(len(chans))
+	for _, ch := range chans {
+		go func(ch chan Tuple) {
+			for t := range ch {
+				out <- t
+			}
+			wg.Done()
+		}(ch)
+	}
+	wg.Wait()
+	close(out)
+}
+
+// Returns all items as map[string]interface{}
+func (m ConcurrentMap) Items() map[string]interface{} {
+	tmp := make(map[string]interface{})
+
+	// Insert items to temporary map.
+	for item := range m.IterBuffered() {
+		tmp[item.Key] = item.Val
+	}
+
+	return tmp
+}
+
+// Iterator callback,called for every key,value found in
+// maps. RLock is held for all calls for a given shard
+// therefore callback sess consistent view of a shard,
+// but not across the shards
+type IterCb func(key string, v interface{})
+
+// Callback based iterator, cheapest way to read
+// all elements in a map.
+func (m ConcurrentMap) IterCb(fn IterCb) {
+	for idx := range m {
+		shard := (m)[idx]
+		shard.RLock()
+		for key, value := range shard.items {
+			fn(key, value)
+		}
+		shard.RUnlock()
+	}
+}
+
+// Return all keys as []string
+func (m ConcurrentMap) Keys() []string {
+	count := m.Count()
+	ch := make(chan string, count)
+	go func() {
+		// Foreach shard.
+		wg := sync.WaitGroup{}
+		wg.Add(SHARD_COUNT)
+		for _, shard := range m {
+			go func(shard *ConcurrentMapShared) {
+				// Foreach key, value pair.
+				shard.RLock()
+				for key := range shard.items {
+					ch <- key
+				}
+				shard.RUnlock()
+				wg.Done()
+			}(shard)
+		}
+		wg.Wait()
+		close(ch)
+	}()
+
+	// Generate keys
+	keys := make([]string, 0, count)
+	for k := range ch {
+		keys = append(keys, k)
+	}
+	return keys
+}
+
+//Reviles ConcurrentMap "private" variables to json marshal.
+func (m ConcurrentMap) MarshalJSON() ([]byte, error) {
+	// Create a temporary map, which will hold all item spread across shards.
+	tmp := make(map[string]interface{})
+
+	// Insert items to temporary map.
+	for item := range m.IterBuffered() {
+		tmp[item.Key] = item.Val
+	}
+	return json.Marshal(tmp)
+}
+
+func fnv32(key string) uint32 {
+	hash := uint32(2166136261)
+	const prime32 = uint32(16777619)
+	for i := 0; i < len(key); i++ {
+		hash *= prime32
+		hash ^= uint32(key[i])
+	}
+	return hash
+}
+
+// Concurrent map uses Interface{} as its value, therefor JSON Unmarshal
+// will probably won't know which to type to unmarshal into, in such case
+// we'll end up with a value of type map[string]interface{}, In most cases this isn't
+// out value type, this is why we've decided to remove this functionality.
+
+// func (m *ConcurrentMap) UnmarshalJSON(b []byte) (err error) {
+// 	// Reverse process of Marshal.
+
+// 	tmp := make(map[string]interface{})
+
+// 	// Unmarshal into a single map.
+// 	if err := json.Unmarshal(b, &tmp); err != nil {
+// 		return nil
+// 	}
+
+// 	// foreach key,value pair in temporary map insert into our concurrent map.
+// 	for key, val := range tmp {
+// 		m.Set(key, val)
+// 	}
+// 	return nil
+// }

utils/pool.go

@@ -0,0 +1,145 @@
+package utils
+
+import (
+	"log"
+	"sync"
+	"time"
+)
+
+//ConnPool to use
+type ConnPool interface {
+	Get() (conn interface{}, err error)
+	Put(conn interface{})
+	ReleaseAll()
+	Len() (length int)
+}
+type poolConfig struct {
+	Factory    func() (interface{}, error)
+	IsActive   func(interface{}) bool
+	Release    func(interface{})
+	InitialCap int
+	MaxCap     int
+}
+
+func NewConnPool(poolConfig poolConfig) (pool ConnPool, err error) {
+	p := netPool{
+		config: poolConfig,
+		conns:  make(chan interface{}, poolConfig.MaxCap),
+		lock:   &sync.Mutex{},
+	}
+	//log.Printf("pool MaxCap:%d", poolConfig.MaxCap)
+	if poolConfig.MaxCap > 0 {
+		err = p.initAutoFill(false)
+		if err == nil {
+			p.initAutoFill(true)
+		}
+	}
+	return &p, nil
+}
+
+type netPool struct {
+	conns  chan interface{}
+	lock   *sync.Mutex
+	config poolConfig
+}
+
+func (p *netPool) initAutoFill(async bool) (err error) {
+	var worker = func() (err error) {
+		for {
+			//log.Printf("pool fill: %v , len: %d", p.Len() <= p.config.InitialCap/2, p.Len())
+			if p.Len() <= p.config.InitialCap/2 {
+				p.lock.Lock()
+				errN := 0
+				for i := 0; i < p.config.InitialCap; i++ {
+					c, err := p.config.Factory()
+					if err != nil {
+						errN++
+						if async {
+							continue
+						} else {
+							p.lock.Unlock()
+							return err
+						}
+					}
+					select {
+					case p.conns <- c:
+					default:
+						p.config.Release(c)
+						break
+					}
+					if p.Len() >= p.config.InitialCap {
+						break
+					}
+				}
+				if errN > 0 {
+					log.Printf("fill conn pool fail , ERRN:%d", errN)
+				}
+				p.lock.Unlock()
+			}
+			if !async {
+				return
+			}
+			time.Sleep(time.Second * 2)
+		}
+	}
+	if async {
+		go worker()
+	} else {
+		err = worker()
+	}
+	return
+
+}
+
+func (p *netPool) Get() (conn interface{}, err error) {
+	// defer func() {
+	// 	log.Printf("pool len : %d", p.Len())
+	// }()
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	// for {
+	select {
+	case conn = <-p.conns:
+		if p.config.IsActive(conn) {
+			return
+		}
+		p.config.Release(conn)
+	default:
+		conn, err = p.config.Factory()
+		if err != nil {
+			return nil, err
+		}
+		return conn, nil
+	}
+	// }
+	return
+}
+
+func (p *netPool) Put(conn interface{}) {
+	if conn == nil {
+		return
+	}
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	if !p.config.IsActive(conn) {
+		p.config.Release(conn)
+	}
+	select {
+	case p.conns <- conn:
+	default:
+		p.config.Release(conn)
+	}
+}
+func (p *netPool) ReleaseAll() {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	close(p.conns)
+	for c := range p.conns {
+		p.config.Release(c)
+	}
+	p.conns = make(chan interface{}, p.config.InitialCap)
+
+}
+func (p *netPool) Len() (length int) {
+	return len(p.conns)
+}

utils/serve-channel.go

@@ -0,0 +1,126 @@
+package utils
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"runtime/debug"
+)
+
+type ServerChannel struct {
+	ip               string
+	port             int
+	Listener         *net.Listener
+	UDPListener      *net.UDPConn
+	errAcceptHandler func(err error)
+}
+
+func NewServerChannel(ip string, port int) ServerChannel {
+	return ServerChannel{
+		ip:   ip,
+		port: port,
+		errAcceptHandler: func(err error) {
+			fmt.Printf("accept error , ERR:%s", err)
+		},
+	}
+}
+func (sc *ServerChannel) SetErrAcceptHandler(fn func(err error)) {
+	sc.errAcceptHandler = fn
+}
+func (sc *ServerChannel) ListenTls(certBytes, keyBytes []byte, fn func(conn net.Conn)) (err error) {
+	sc.Listener, err = ListenTls(sc.ip, sc.port, certBytes, keyBytes)
+	if err == nil {
+		go func() {
+			defer func() {
+				if e := recover(); e != nil {
+					log.Printf("ListenTls crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+				}
+			}()
+			for {
+				var conn net.Conn
+				conn, err = (*sc.Listener).Accept()
+				if err == nil {
+					go func() {
+						defer func() {
+							if e := recover(); e != nil {
+								log.Printf("connection handler crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+							}
+						}()
+						fn(conn)
+					}()
+				} else {
+					sc.errAcceptHandler(err)
+					(*sc.Listener).Close()
+					break
+				}
+			}
+		}()
+	}
+	return
+}
+
+func (sc *ServerChannel) ListenTCP(fn func(conn net.Conn)) (err error) {
+	var l net.Listener
+	l, err = net.Listen("tcp", fmt.Sprintf("%s:%d", sc.ip, sc.port))
+	if err == nil {
+		sc.Listener = &l
+		go func() {
+			defer func() {
+				if e := recover(); e != nil {
+					log.Printf("ListenTCP crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+				}
+			}()
+			for {
+				var conn net.Conn
+				conn, err = (*sc.Listener).Accept()
+				if err == nil {
+					go func() {
+						defer func() {
+							if e := recover(); e != nil {
+								log.Printf("connection handler crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+							}
+						}()
+						fn(conn)
+					}()
+				} else {
+					sc.errAcceptHandler(err)
+					break
+				}
+			}
+		}()
+	}
+	return
+}
+func (sc *ServerChannel) ListenUDP(fn func(packet []byte, localAddr, srcAddr *net.UDPAddr)) (err error) {
+	addr := &net.UDPAddr{IP: net.ParseIP(sc.ip), Port: sc.port}
+	l, err := net.ListenUDP("udp", addr)
+	if err == nil {
+		sc.UDPListener = l
+		go func() {
+			defer func() {
+				if e := recover(); e != nil {
+					log.Printf("ListenUDP crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+				}
+			}()
+			for {
+				var buf = make([]byte, 2048)
+				n, srcAddr, err := (*sc.UDPListener).ReadFromUDP(buf)
+				if err == nil {
+					packet := buf[0:n]
+					go func() {
+						defer func() {
+							if e := recover(); e != nil {
+								log.Printf("udp data handler crashed , err : %s , \ntrace:%s", e, string(debug.Stack()))
+							}
+						}()
+						fn(packet, addr, srcAddr)
+					}()
+				} else {
+					sc.errAcceptHandler(err)
+					break
+				}
+			}
+		}()
+	}
+	return
+}

utils/structs.go

@@ -0,0 +1,614 @@
+package utils
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net"
+	"net/url"
+	"strings"
+	"sync"
+	"time"
+)
+
+type Checker struct {
+	data       ConcurrentMap
+	blockedMap ConcurrentMap
+	directMap  ConcurrentMap
+	interval   int64
+	timeout    int
+}
+type CheckerItem struct {
+	IsHTTPS      bool
+	Method       string
+	URL          string
+	Domain       string
+	Host         string
+	Data         []byte
+	SuccessCount uint
+	FailCount    uint
+}
+
+//NewChecker args:
+//timeout : tcp timeout milliseconds ,connect to host
+//interval: recheck domain interval seconds
+func NewChecker(timeout int, interval int64, blockedFile, directFile string) Checker {
+	ch := Checker{
+		data:     NewConcurrentMap(),
+		interval: interval,
+		timeout:  timeout,
+	}
+	ch.blockedMap = ch.loadMap(blockedFile)
+	ch.directMap = ch.loadMap(directFile)
+	if !ch.blockedMap.IsEmpty() {
+		log.Printf("blocked file loaded , domains : %d", ch.blockedMap.Count())
+	}
+	if !ch.directMap.IsEmpty() {
+		log.Printf("direct file loaded , domains : %d", ch.directMap.Count())
+	}
+	ch.start()
+	return ch
+}
+
+func (c *Checker) loadMap(f string) (dataMap ConcurrentMap) {
+	dataMap = NewConcurrentMap()
+	if PathExists(f) {
+		_contents, err := ioutil.ReadFile(f)
+		if err != nil {
+			log.Printf("load file err:%s", err)
+			return
+		}
+		for _, line := range strings.Split(string(_contents), "\n") {
+			line = strings.Trim(line, "\r \t")
+			if line != "" {
+				dataMap.Set(line, true)
+			}
+		}
+	}
+	return
+}
+func (c *Checker) start() {
+	go func() {
+		for {
+			for _, v := range c.data.Items() {
+				go func(item CheckerItem) {
+					if c.isNeedCheck(item) {
+						//log.Printf("check %s", item.Domain)
+						var conn net.Conn
+						var err error
+						if item.IsHTTPS {
+							conn, err = ConnectHost(item.Host, c.timeout)
+							if err == nil {
+								conn.SetDeadline(time.Now().Add(time.Millisecond))
+								conn.Close()
+							}
+						} else {
+							err = HTTPGet(item.URL, c.timeout)
+						}
+						if err != nil {
+							item.FailCount = item.FailCount + 1
+						} else {
+							item.SuccessCount = item.SuccessCount + 1
+						}
+						c.data.Set(item.Host, item)
+					}
+				}(v.(CheckerItem))
+			}
+			time.Sleep(time.Second * time.Duration(c.interval))
+		}
+	}()
+}
+func (c *Checker) isNeedCheck(item CheckerItem) bool {
+	var minCount uint = 5
+	if (item.SuccessCount >= minCount && item.SuccessCount > item.FailCount) ||
+		(item.FailCount >= minCount && item.SuccessCount > item.FailCount) ||
+		c.domainIsInMap(item.Host, false) ||
+		c.domainIsInMap(item.Host, true) {
+		return false
+	}
+	return true
+}
+func (c *Checker) IsBlocked(address string) (blocked bool, failN, successN uint) {
+	if c.domainIsInMap(address, true) {
+		//log.Printf("%s in blocked ? true", address)
+		return true, 0, 0
+	}
+	if c.domainIsInMap(address, false) {
+		//log.Printf("%s in direct ? true", address)
+		return false, 0, 0
+	}
+
+	_item, ok := c.data.Get(address)
+	if !ok {
+		//log.Printf("%s not in map, blocked true", address)
+		return true, 0, 0
+	}
+	item := _item.(CheckerItem)
+
+	return item.FailCount >= item.SuccessCount, item.FailCount, item.SuccessCount
+}
+func (c *Checker) domainIsInMap(address string, blockedMap bool) bool {
+	u, err := url.Parse("http://" + address)
+	if err != nil {
+		log.Printf("blocked check , url parse err:%s", err)
+		return true
+	}
+	domainSlice := strings.Split(u.Hostname(), ".")
+	if len(domainSlice) > 1 {
+		subSlice := domainSlice[:len(domainSlice)-1]
+		topDomain := strings.Join(domainSlice[len(domainSlice)-1:], ".")
+		checkDomain := topDomain
+		for i := len(subSlice) - 1; i >= 0; i-- {
+			checkDomain = subSlice[i] + "." + checkDomain
+			if !blockedMap && c.directMap.Has(checkDomain) {
+				return true
+			}
+			if blockedMap && c.blockedMap.Has(checkDomain) {
+				return true
+			}
+		}
+	}
+	return false
+}
+func (c *Checker) Add(address string, isHTTPS bool, method, URL string, data []byte) {
+	if c.domainIsInMap(address, false) || c.domainIsInMap(address, true) {
+		return
+	}
+	if !isHTTPS && strings.ToLower(method) != "get" {
+		return
+	}
+	var item CheckerItem
+	u := strings.Split(address, ":")
+	item = CheckerItem{
+		URL:     URL,
+		Domain:  u[0],
+		Host:    address,
+		Data:    data,
+		IsHTTPS: isHTTPS,
+		Method:  method,
+	}
+	c.data.SetIfAbsent(item.Host, item)
+}
+
+type BasicAuth struct {
+	data ConcurrentMap
+}
+
+func NewBasicAuth() BasicAuth {
+	return BasicAuth{
+		data: NewConcurrentMap(),
+	}
+}
+func (ba *BasicAuth) AddFromFile(file string) (n int, err error) {
+	_content, err := ioutil.ReadFile(file)
+	if err != nil {
+		return
+	}
+	userpassArr := strings.Split(strings.Replace(string(_content), "\r", "", -1), "\n")
+	for _, userpass := range userpassArr {
+		if strings.HasPrefix("#", userpass) {
+			continue
+		}
+		u := strings.Split(strings.Trim(userpass, " "), ":")
+		if len(u) == 2 {
+			ba.data.Set(u[0], u[1])
+			n++
+		}
+	}
+	return
+}
+
+func (ba *BasicAuth) Add(userpassArr []string) (n int) {
+	for _, userpass := range userpassArr {
+		u := strings.Split(userpass, ":")
+		if len(u) == 2 {
+			ba.data.Set(u[0], u[1])
+			n++
+		}
+	}
+	return
+}
+
+func (ba *BasicAuth) Check(userpass string) (ok bool) {
+	u := strings.Split(strings.Trim(userpass, " "), ":")
+	if len(u) == 2 {
+		if p, _ok := ba.data.Get(u[0]); _ok {
+			return p.(string) == u[1]
+		}
+	}
+	return
+}
+func (ba *BasicAuth) Total() (n int) {
+	n = ba.data.Count()
+	return
+}
+
+type HTTPRequest struct {
+	HeadBuf     []byte
+	conn        *net.Conn
+	Host        string
+	Method      string
+	URL         string
+	hostOrURL   string
+	isBasicAuth bool
+	basicAuth   *BasicAuth
+}
+
+func NewHTTPRequest(inConn *net.Conn, bufSize int, isBasicAuth bool, basicAuth *BasicAuth) (req HTTPRequest, err error) {
+	buf := make([]byte, bufSize)
+	len := 0
+	req = HTTPRequest{
+		conn: inConn,
+	}
+	len, err = (*inConn).Read(buf[:])
+	if err != nil {
+		if err != io.EOF {
+			err = fmt.Errorf("http decoder read err:%s", err)
+		}
+		CloseConn(inConn)
+		return
+	}
+	req.HeadBuf = buf[:len]
+	index := bytes.IndexByte(req.HeadBuf, '\n')
+	if index == -1 {
+		err = fmt.Errorf("http decoder data line err:%s", string(req.HeadBuf)[:50])
+		CloseConn(inConn)
+		return
+	}
+	fmt.Sscanf(string(req.HeadBuf[:index]), "%s%s", &req.Method, &req.hostOrURL)
+	if req.Method == "" || req.hostOrURL == "" {
+		err = fmt.Errorf("http decoder data err:%s", string(req.HeadBuf)[:50])
+		CloseConn(inConn)
+		return
+	}
+	req.Method = strings.ToUpper(req.Method)
+	req.isBasicAuth = isBasicAuth
+	req.basicAuth = basicAuth
+	log.Printf("%s:%s", req.Method, req.hostOrURL)
+
+	if req.IsHTTPS() {
+		err = req.HTTPS()
+	} else {
+		err = req.HTTP()
+	}
+	return
+}
+func (req *HTTPRequest) HTTP() (err error) {
+	if req.isBasicAuth {
+		err = req.BasicAuth()
+		if err != nil {
+			return
+		}
+	}
+	req.URL, err = req.getHTTPURL()
+	if err == nil {
+		u, _ := url.Parse(req.URL)
+		req.Host = u.Host
+		req.addPortIfNot()
+	}
+	return
+}
+func (req *HTTPRequest) HTTPS() (err error) {
+	req.Host = req.hostOrURL
+	req.addPortIfNot()
+	//_, err = fmt.Fprint(*req.conn, "HTTP/1.1 200 Connection established\r\n\r\n")
+	return
+}
+func (req *HTTPRequest) HTTPSReply() (err error) {
+	_, err = fmt.Fprint(*req.conn, "HTTP/1.1 200 Connection established\r\n\r\n")
+	return
+}
+func (req *HTTPRequest) IsHTTPS() bool {
+	return req.Method == "CONNECT"
+}
+
+func (req *HTTPRequest) BasicAuth() (err error) {
+
+	//log.Printf("request :%s", string(b[:n]))
+	authorization, err := req.getHeader("Authorization")
+	if err != nil {
+		fmt.Fprint((*req.conn), "HTTP/1.1 401 Unauthorized\r\nWWW-Authenticate: Basic realm=\"\"\r\n\r\nUnauthorized")
+		CloseConn(req.conn)
+		return
+	}
+	//log.Printf("Authorization:%s", authorization)
+	basic := strings.Fields(authorization)
+	if len(basic) != 2 {
+		err = fmt.Errorf("authorization data error,ERR:%s", authorization)
+		CloseConn(req.conn)
+		return
+	}
+	user, err := base64.StdEncoding.DecodeString(basic[1])
+	if err != nil {
+		err = fmt.Errorf("authorization data parse error,ERR:%s", err)
+		CloseConn(req.conn)
+		return
+	}
+	authOk := (*req.basicAuth).Check(string(user))
+	//log.Printf("auth %s,%v", string(user), authOk)
+	if !authOk {
+		fmt.Fprint((*req.conn), "HTTP/1.1 401 Unauthorized\r\n\r\nUnauthorized")
+		CloseConn(req.conn)
+		err = fmt.Errorf("basic auth fail")
+		return
+	}
+	return
+}
+func (req *HTTPRequest) getHTTPURL() (URL string, err error) {
+	if !strings.HasPrefix(req.hostOrURL, "/") {
+		return req.hostOrURL, nil
+	}
+	_host, err := req.getHeader("host")
+	if err != nil {
+		return
+	}
+	URL = fmt.Sprintf("http://%s%s", _host, req.hostOrURL)
+	return
+}
+func (req *HTTPRequest) getHeader(key string) (val string, err error) {
+	key = strings.ToUpper(key)
+	lines := strings.Split(string(req.HeadBuf), "\r\n")
+	for _, line := range lines {
+		line := strings.SplitN(strings.Trim(line, "\r\n "), ":", 2)
+		if len(line) == 2 {
+			k := strings.ToUpper(strings.Trim(line[0], " "))
+			v := strings.Trim(line[1], " ")
+			if key == k {
+				val = v
+				return
+			}
+		}
+	}
+	err = fmt.Errorf("can not find HOST header")
+	return
+}
+
+func (req *HTTPRequest) addPortIfNot() (newHost string) {
+	//newHost = req.Host
+	port := "80"
+	if req.IsHTTPS() {
+		port = "443"
+	}
+	if (!strings.HasPrefix(req.Host, "[") && strings.Index(req.Host, ":") == -1) || (strings.HasPrefix(req.Host, "[") && strings.HasSuffix(req.Host, "]")) {
+		//newHost = req.Host + ":" + port
+		//req.headBuf = []byte(strings.Replace(string(req.headBuf), req.Host, newHost, 1))
+		req.Host = req.Host + ":" + port
+	}
+	return
+}
+
+type OutPool struct {
+	Pool      ConnPool
+	dur       int
+	isTLS     bool
+	certBytes []byte
+	keyBytes  []byte
+	address   string
+	timeout   int
+}
+
+func NewOutPool(dur int, isTLS bool, certBytes, keyBytes []byte, address string, timeout int, InitialCap int, MaxCap int) (op OutPool) {
+	op = OutPool{
+		dur:       dur,
+		isTLS:     isTLS,
+		certBytes: certBytes,
+		keyBytes:  keyBytes,
+		address:   address,
+		timeout:   timeout,
+	}
+	var err error
+	op.Pool, err = NewConnPool(poolConfig{
+		IsActive: func(conn interface{}) bool { return true },
+		Release: func(conn interface{}) {
+			if conn != nil {
+				conn.(net.Conn).SetDeadline(time.Now().Add(time.Millisecond))
+				conn.(net.Conn).Close()
+				// log.Println("conn released")
+			}
+		},
+		InitialCap: InitialCap,
+		MaxCap:     MaxCap,
+		Factory: func() (conn interface{}, err error) {
+			conn, err = op.getConn()
+			return
+		},
+	})
+	if err != nil {
+		log.Fatalf("init conn pool fail ,%s", err)
+	} else {
+		if InitialCap > 0 {
+			log.Printf("init conn pool success")
+			op.initPoolDeamon()
+		} else {
+			log.Printf("conn pool closed")
+		}
+	}
+	return
+}
+func (op *OutPool) getConn() (conn interface{}, err error) {
+	if op.isTLS {
+		var _conn tls.Conn
+		_conn, err = TlsConnectHost(op.address, op.timeout, op.certBytes, op.keyBytes)
+		if err == nil {
+			conn = net.Conn(&_conn)
+		}
+	} else {
+		conn, err = ConnectHost(op.address, op.timeout)
+	}
+	return
+}
+
+func (op *OutPool) initPoolDeamon() {
+	go func() {
+		if op.dur <= 0 {
+			return
+		}
+		log.Printf("pool deamon started")
+		for {
+			time.Sleep(time.Second * time.Duration(op.dur))
+			conn, err := op.getConn()
+			if err != nil {
+				log.Printf("pool deamon err %s , release pool", err)
+				op.Pool.ReleaseAll()
+			} else {
+				conn.(net.Conn).SetDeadline(time.Now().Add(time.Millisecond))
+				conn.(net.Conn).Close()
+			}
+		}
+	}()
+}
+
+type HeartbeatData struct {
+	Data  []byte
+	N     int
+	Error error
+}
+type HeartbeatReadWriter struct {
+	conn *net.Conn
+	// rchn       chan HeartbeatData
+	l          *sync.Mutex
+	dur        int
+	errHandler func(err error, hb *HeartbeatReadWriter)
+	once       *sync.Once
+	datachn    chan byte
+	// rbuf       bytes.Buffer
+	// signal     chan bool
+	rerrchn chan error
+}
+
+func NewHeartbeatReadWriter(conn *net.Conn, dur int, fn func(err error, hb *HeartbeatReadWriter)) (hrw HeartbeatReadWriter) {
+	hrw = HeartbeatReadWriter{
+		conn: conn,
+		l:    &sync.Mutex{},
+		dur:  dur,
+		// rchn:       make(chan HeartbeatData, 10000),
+		// signal:     make(chan bool, 1),
+		errHandler: fn,
+		datachn:    make(chan byte, 4*1024),
+		once:       &sync.Once{},
+		rerrchn:    make(chan error, 1),
+		// rbuf:       bytes.Buffer{},
+	}
+	hrw.heartbeat()
+	hrw.reader()
+	return
+}
+
+func (rw *HeartbeatReadWriter) Close() {
+	CloseConn(rw.conn)
+}
+func (rw *HeartbeatReadWriter) reader() {
+	go func() {
+		//log.Printf("heartbeat read started")
+		for {
+			n, data, err := rw.read()
+			if n == -1 {
+				continue
+			}
+			//log.Printf("n:%d , data:%s ,err:%s", n, string(data), err)
+			if err == nil {
+				//fmt.Printf("write data %s\n", string(data))
+				for _, b := range data {
+					rw.datachn <- b
+				}
+			}
+			if err != nil {
+				//log.Printf("heartbeat reader err: %s", err)
+				select {
+				case rw.rerrchn <- err:
+				default:
+				}
+				rw.once.Do(func() {
+					rw.errHandler(err, rw)
+				})
+				break
+			}
+		}
+		//log.Printf("heartbeat read exited")
+	}()
+}
+func (rw *HeartbeatReadWriter) read() (n int, data []byte, err error) {
+	var typ uint8
+	err = binary.Read((*rw.conn), binary.LittleEndian, &typ)
+	if err != nil {
+		return
+	}
+	if typ == 0 {
+		// log.Printf("heartbeat revecived")
+		n = -1
+		return
+	}
+	var dataLength uint32
+	binary.Read((*rw.conn), binary.LittleEndian, &dataLength)
+	_data := make([]byte, dataLength)
+	// log.Printf("dataLength:%d , data:%s", dataLength, string(data))
+	n, err = (*rw.conn).Read(_data)
+	//log.Printf("n:%d , data:%s ,err:%s", n, string(data), err)
+	if err != nil {
+		return
+	}
+	if uint32(n) != dataLength {
+		err = fmt.Errorf("read short data body")
+		return
+	}
+	data = _data[:n]
+	return
+}
+func (rw *HeartbeatReadWriter) heartbeat() {
+	go func() {
+		//log.Printf("heartbeat started")
+		for {
+			if rw.conn == nil || *rw.conn == nil {
+				//log.Printf("heartbeat err: conn nil")
+				break
+			}
+			rw.l.Lock()
+			_, err := (*rw.conn).Write([]byte{0})
+			rw.l.Unlock()
+			if err != nil {
+				//log.Printf("heartbeat err: %s", err)
+				rw.once.Do(func() {
+					rw.errHandler(err, rw)
+				})
+				break
+			} else {
+				// log.Printf("heartbeat send ok")
+			}
+			time.Sleep(time.Second * time.Duration(rw.dur))
+		}
+		//log.Printf("heartbeat exited")
+	}()
+}
+func (rw *HeartbeatReadWriter) Read(p []byte) (n int, err error) {
+	data := make([]byte, cap(p))
+	for i := 0; i < cap(p); i++ {
+		data[i] = <-rw.datachn
+		n++
+		//fmt.Printf("read  %d %v\n", i, data[:n])
+		if len(rw.datachn) == 0 {
+			n = i + 1
+			copy(p, data[:n])
+			return
+		}
+	}
+	return
+}
+func (rw *HeartbeatReadWriter) Write(p []byte) (n int, err error) {
+	defer rw.l.Unlock()
+	rw.l.Lock()
+	pkg := new(bytes.Buffer)
+	binary.Write(pkg, binary.LittleEndian, uint8(1))
+	binary.Write(pkg, binary.LittleEndian, uint32(len(p)))
+	binary.Write(pkg, binary.LittleEndian, p)
+	bs := pkg.Bytes()
+	n, err = (*rw.conn).Write(bs)
+	if err == nil {
+		n = len(p)
+	}
+	return
+}