KingIP

A proxy server that can handle multiple exit points.

How it works

When a user connects via the proxy to the destination server (ie. curl -x "http://user:pass@localhost:11700" https://httpbin.org/ip -L -v), the request traverses these services:

• Gateway decides to which region the request needs to be passed by the port the user connects to (ie. :11700 is "red" region in the example;
• Gateway then checks if it has any relay connections and creates new quic stream with the random relay it chooses;
• Relay gets a proxy request from the gateway and checks if it has any edge connections for a chosen region;
• Relay, if there are any edge connections from that region, creates a new quic strem with a chosen edge;
• Once a "tunnel" from gateway to relay to edge is established - an inbound and outbound data is passed around from user to destination;

How to run

To run, go to cmd/{gateway,relay,edge}folders and build 3 binaries.

Start these services with the default configuration:

./cmd/gateway/gateway --config ./cmd/gateway/config.yml
./cmd/relay/relay --config ./cmd/relay/config.yml
./cmd/edge/edge

After running gateway, relay and edge - connect to the gateway via http://user:pass@localhost:11700:

curl -x http://user:pass@localhost:11700 http://httpbin.org/ip -L -v

Docker Compose

After running docker compose up, user should be able to proxy requests through tree regions: red, green, blue and yellow.

# Red
curl -x http://user:pass@localhost:11700 http://httpbin.org/ip -L -v

# Green
curl -x http://user:pass@localhost:11070 http://httpbin.org/ip -L -v

# Blue
curl -x http://user:pass@localhost:11007 http://httpbin.org/ip -L -v

# Yellow
curl -x http://user:pass@localhost:11770 http://httpbin.org/ip -L -v

To connect to host network via the docker compose proxy use host.docker.internal instead of localhost in the curl request:

# Connects to localhost:8080 on host system
curl -x http://user:pass@localhost:11770 http://host.docker.internal:8080/test -L -v

"Curl" util

cmd/curl has ability to run multiple requests at once. After building it in cmd/curl directory:

# Usage of `curl`:
#       --parallel int       Number of parallel calls (default 11)
#       --proxy string       Proxy URL (default "http://user:pass@localhost:11700")
#       --timeout duration   Request timeout in seconds (default 10s)
#       --url string         Target URL to request (default "http://httpbin.org/ip")

./cmd/curl/curl -proxy http://user:pass@localhost:11700 -url http://httpbin.org/ip