looking for source code for Android application VPN , Proxy,ssh

**Hi **
I am looking for source code for Android application.
The same work shall be done for the following programs
HTTP Injector , eProxy , Apk Custom , Hamer vpn , KPN Tunnel …
(VPN , Proxy,ssh)
Preferred to work on Android Studio

can any one help me ? please

contact me on waqar.abbas93 skype . Thanks