macOS proxy settings from terminal

.proxy_helper

# Macos Proxy Helper (networksetup wraper)
# add this line to $HOME/.zshrc
# 
# source "$HOME/.proxy_helper"
#

# usage :
    # proxy <  | up | down > [-all || -http|-https|-socks|-ftp|-stream ]
    # proxy set <destination> <port> [-http|-https|-socks|-ftp|-stream || -all]'

if [[ "$(uname -sr)" =~ "Darwin*" ]] ;then

    proxy_read_otps(){
        proxies=()
        #   Additional options:
        #   [-getgopherproxy networkservice]
        #   [-setgopherproxy networkservice domain portnumber authenticated username password]
        #   [-setgopherproxystate networkservice on | off] 
        #   [-getproxybypassdomains networkservice]            
        #   [-setproxybypassdomains networkservice domain1 [domain2] [...]] 
        #   [-getpassiveftp networkservice]

        while [[ $# -gt 0 ]]; do
            key="$1"
            case "$key" in
                -https)
                    proxies+=("-setsecurewebproxy")
                    ;;
                -http)
                    proxies+=("-setwebproxy")
                    ;;
                -socks)
                    proxies+=("-setsocksfirewallproxy")
                    ;;
                -ftp)
                    proxies+=("-setftpproxy")
                    ;;
                -stream)
                    proxies+=("-setstreamingproxy")
                    ;;
                -all)
                    proxies=("-setsecurewebproxy" "-setwebproxy" "-setsocksfirewallproxy" "-setftpproxy" "-setstreamingproxy")
                    break
                    ;;
            esac
            shift
        done
        echo "${proxies[@]}"
    }

    proxy_set_fn(){
        if [ $# -le "3" ]; then
            echo '** Error: expected arguments: <service_name> <destination> <port> [-http|-https|-socks|-ftp|-stream || -all]' >&2
            return 1
        fi

        service="${1}"
        destination="${2}"
        port="${3}"

        proxies=( $( proxy_read_otps "$@" ) )

        if [ "${#proxies[@]}" -gt 0 ]; then
            for proxy in "${proxies[@]}"; do
            networksetup  "$proxy" "$service" "$destination" "$port"
            sleep 1
            done
            # activate
            original_args=("$@") #remove first 3 args
            proxy_service_fn up "${original_args[@]:3}"
        else
            echo '** Error: no proxy type' >&2
            return 1
        fi
    }

    proxy_service_fn(){
        st=""
        service="$(networksetup -listnetworkserviceorder | grep -B1 "$(route get default | awk '/interface/ {print $2}')" | awk -F'\\) ' '/\([0-9]+\)/ {print $2}')"
        if [ $# -le "0" ]; then
            proxies=( $( proxy_read_otps "-all" ) )
        else
            proxies=( $( proxy_read_otps "$@" ) )
        fi
        if [ "up" = "${1}" ]; then
            st="on"
        elif [ "down" = "${1}" ]; then
            st="off"
        elif [ "set" = "${1}" ]; then
            args=("$@") # remove "set"
            proxy_set_fn "$service" "${args[@]:1}"
            return
        fi
        if [ "${st}" ]; then 
            if [ "${#proxies[@]}" -gt 0 ]; then
                for proxy in "${proxies[@]}"; do
                   networksetup  "${proxy}state" "$service" "$st"
                done
            else
                echo '** Error: no proxy type' >&2
                return 1
            fi
        fi

        for proxy in "${proxies[@]}"; do
            echo "* $(echo  "$proxy" | sed -E 's/(-set|proxy)//g') $( networksetup $(echo  "$proxy" | sed s/set/get/) "$service" | head -n 1 )" 
        done
    }

    alias proxy="proxy_service_fn"    
fi

macOS proxy settings from terminal.md

macOS firewall settings

Set socks proxy

networksetup -setsocksfirewallproxy Wi-Fi 127.0.0.1 7070

Get current socks proxy settings and state

networksetup -getsocksfirewallproxy Wi-Fi

Enabled: Yes
Server: 127.0.0.1
Port: 7070
Authenticated Proxy Enabled: 0

Set socks proxy state (enable/disable)

networksetup -setsocksfirewallproxystate Wi-Fi on
networksetup -setsocksfirewallproxystate Wi-Fi off

proxy.sh

echo "Enabling proxy"

# Set macOS socks proxy to local proxy
networksetup -setsocksfirewallproxy Wi-Fi 127.0.0.1 7070
# enable macOS socks proxy
networksetup -setsocksfirewallproxystate Wi-Fi on
# create a local socks proxy to remote host
ssh -D 7070 -NCq [email protected]

# proxy stays open until termination
echo ""
echo "Disabling proxy"

# disable macOS socks proxy upon closing the connection
networksetup -setsocksfirewallproxystate Wi-Fi off