Tag Archives: http

httptunnel

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What is it

It creates tunnels using http protocol. It is useful to bypass restrictive firewalls or proxies. It uses two techniques, the well known CONNECT technique as well as a BOSH-like implementation. It bypass most firewalls (as requests are valid HTTP requests)  and proxies in their most secure configurations.

How to run

To create a tunnel a user can run httptunnel_server at server where tunnelized service is started and httptunnel_client where the client of the service is used. The client must connect to port where httptunnel_client is started in order to use a tunnelized connection.

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httptunnel_client -port <local_port> -http_host <http_host> -http_port <http_port> [-proxy_host <proxy_host> -proxy_port <proxy_port>] [-proxy_user  <proxy_user> -proxy_pass <proxy_pass>]

port: where the httptunnel client will listen for tunnelled connections
http_host: the hostname or ip where httptunnel_tunnel is running
http_port: the port where httptunnel_tunnel is running
proxy_host: the proxy host in case of necessary
proxy_port: the proxy port in case of necessary
proxy_user:  the proxy username in case of proxy authentication
proxy_pass: the proxy password in case of proxy authentication

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httptunnel_server -http_port <http_port> -client_port <client_port> -client_host <client_host>

http_port: the port where httptunnel_server listens
client_port: the port where destination service is bound
client_host: the hostname or ip where destination service is running

Example: Tunnel a ssh connection

Configuration at host (server.com):

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httptunnel_server -http_port 80 -client_port 22 -client_host 127.0.0.1

Configuration at client:

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httptunnel_client -port 22 -http_host server.com -http_port 80 -proxy_host proxy.mynet.com -proxy_port 3128

– to start a ssh connection will run at client:

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ssh 127.0.0.1

which will start a tunneled ssh connection at server.com

Build

At this moment only windows compile system is provided (VS2008) but linux/unix
compile system will be available soon.

Windows

A solution ‘httptunnel.sln’ is provided.
Portable Components C++ library is a prerequisite.
It must be installed at same directory where httptunel is located in and it must be named as ‘poco’.
|
+ – httptunnel
+ – poco

Download

http://diggertunnel.sourceforge.net/

bashttp mini web server

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What is it

It’s a micro web server that features php and web service extension

Build

Dependencies: Poco c++ libraries

For linux:

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~/bashttp $ rm -rf build/
~/bashttp $ mkdir -p build/debug
~/bashttp $ cd build/debug/
~/bashttp $ cmake ../.. -DCMAKE_BUILD_TYPE=Debug
~/bashttp $ make

For windows use cmake-gui from http://www.cmake.org/.

How to run

To run it

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~/bashttp $ bashttp 8888 doc_root
bashttp listening on 127.0.0.1:8888

Where 8888 is the port and ‘doc_root’ is the document root directory

To stop it simply press ctr+c

Configuration and test files

miniwebserver-files

doc_root: document root directory

doc_root/index.html: html test page

doc_root/index.php: php test page

mime.conf: mime configuration. Must be in execution directory.

/etc/alternatives/php-cgi: php binary for linux

php.cgi.exe: php binary for windows. Must be in execution directory.

😈 Execute shell from browser 😈

Screenshot from 2014-04-19 07:08:56

Write a new web service

Example of service that would be called as ‘http://server/newservice’:

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class NewService : public MiniWebService
{
public:
    virtual void exec(const Poco::Net::HTTPServerRequest& request,
                        std::map<std::string, std::string> &query,
                        Poco::Net::HTTPServerResponse& response,
                        Poco::Net::StreamSocket& sock,
                        Poco::Net::HTTPServerSession& session)
    {
        std::ostream& ostr = response.send();
        ostr << "it works.";
        ostr.flush();
    }

    static std::string name() { return "newservice"; }
};

Where:

  • name() method returns the web service identifier as seen in url
  • exec(…) implements the web service.

Add it to server before start it

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std::shared_ptr svc(new NewService());
server.addService(NewService::name(), svc);

Download

download here.