Create an ad-hoc privoxy proxy

privoxy-proxy.command

#!/bin/bash

# activate debugging
#set -x	

# fail on any errors
set -e

INTERFACE=Wi-Fi 
HOST=localhost
PORT=8118
REMOTEHOSTS=( "proxy.01j.me:3128" )
SHELL_GLOBAL_PROFILE=/etc/zprofile



##################################
##### DO NOT EDIT BELOW HERE #####
##################################		

PRIVOXY_ALREADY_RUNNING=0
REMOTEHOST=${REMOTEHOSTS[$RANDOM % ${#REMOTEHOSTS[@]}]}
PRIVOXY_SERVICE_CHECK_OUTPUT=$(brew services list | (grep "privoxy\s*started" || echo ""))
[ -n "${PRIVOXY_SERVICE_CHECK_OUTPUT}" ] && PRIVOXY_ALREADY_RUNNING=1



# Ask for the administrator password upfront
sudo -v 


function disable_proxy() { 
    echo -n "$(tput setaf 136)" # orange
    echo "Disabling HTTP/HTTPS proxy..."
    sudo networksetup -setwebproxystate $INTERFACE off 
    sudo networksetup -setsecurewebproxystate $INTERFACE off 
    unset http_proxy && unset https_proxy
    sudo sed -i ':a;N;$!ba;s/export https\?_proxy=.*//g' $SHELL_GLOBAL_PROFILE
    sudo sed -i ':begin;$!N;$!N;s/\n\n$//;tbegin;P;D' $SHELL_GLOBAL_PROFILE # Remove double newlines from file
    echo -n "$(tput setaf 64)" #green 
    echo "HTTP/HTTPS proxy disabled."
    
    if [[ $PRIVOXY_ALREADY_RUNNING -eq 0 ]]; then
        echo -n "$(tput setaf 136)" # orange
        echo "Stopping Privoxy..."
        brew services stop privoxy 
        echo -n "$(tput setaf 64)" #green 
        echo "Stopped Privoxy."
    else
        echo -n "$(tput setaf 136)" # orange
        #echo "-- At Launch --"
        #echo "${PRIVOXY_SERVICE_CHECK_OUTPUT}"
        #echo "-- Now --"
        #brew services list | egrep "privoxy\s+started"
        echo "Privoxy was previously running so not stopping it."    
    fi
    
    echo -n "$(tput sgr0)" # color reset
    exit 0
}

#This function is used to cleanly exit any script. It does this displaying a
# given error message, and exiting with an error code.
function error_exit {
    echo -n "$(tput setaf 1)" # red
    echo "$@"
    echo -n "$(tput sgr0)" # color reset
    disable_proxy
    exit 1
}
#Trap the killer signals so that we can exit with a good message.
trap "error_exit 'Received signal SIGHUP'" SIGHUP
trap "error_exit 'Received signal SIGINT'" SIGINT
trap "error_exit 'Received signal SIGTERM'" SIGTERM
trap "error_exit 'Received signal SIGKILL'" SIGKILL
trap "error_exit 'Received signal ERR'" ERR

#Alias the function so that it will print a message with the following format:
#prog-name(@line#): message
#We have to explicitly allow aliases, we do this because they make calling the
#function much easier (see example).
shopt -s expand_aliases
alias die='error_exit "Error ${0}(@`echo $(( $LINENO - 1 ))`):"'

 # Let's roll
 

echo -n "$(tput setaf 136)" # orange
echo "Enabling HTTP proxy..."
sudo networksetup -setwebproxy $INTERFACE $HOST $PORT
sudo networksetup -setwebproxystate $INTERFACE on
echo "export http_proxy=$HOST:$PORT" | sudo tee -a $SHELL_GLOBAL_PROFILE
echo "Enabling HTTPS proxy..."
sudo networksetup -setsecurewebproxy $INTERFACE $HOST $PORT
sudo networksetup -setsecurewebproxystate $INTERFACE on
echo "export https_proxy=${REMOTEHOST%:*}:${REMOTEHOST#*:}" | sudo tee -a $SHELL_GLOBAL_PROFILE
echo -n "$(tput setaf 64)" # green
echo "HTTP/HTTPS proxy $HOST:$PORT enabled."


if [[ $PRIVOXY_ALREADY_RUNNING -eq 0 ]]; then
    echo -n "$(tput setaf 136)" # orange
    echo "Starting Privoxy..."
    brew services start privoxy 
    echo -n "$(tput setaf 64)" # green
    echo "Privoxy started."
else
    echo -n "$(tput setaf 136)" # orange
    echo "Existing Privoxy service is already running. We will not attempt to start it."
    #echo "${PRIVOXY_SERVICE_CHECK_OUTPUT}"
fi
echo -n "$(tput setaf 64)" # green
echo "Privoxy is running."


echo -n "$(tput sgr0)" # color reset 


# # Enable the SOCKS5 proxy 
# ssh-add -l || ssh-add
# ./socks5-tunneled-proxy.sh &
# 
# # Enable the Tor proxy &
# ./tor-proxy.sh

# Keep-alive: update existing `sudo` time stamp until finished
while read -n1; do 
    sleep 1
done 2>/dev/null # trap ctrl-c and call disable_proxy()

privoxy-proxy.template

#!/bin/bash

# activate debugging
#set -x	

# fail on any errors
set -e

INTERFACE=Wi-Fi 
HOST=localhost
PORT=8118
REMOTEHOSTS=( "host1:port" )
SHELL_GLOBAL_PROFILE=/etc/zprofile



##################################
##### DO NOT EDIT BELOW HERE #####
##################################		

PRIVOXY_ALREADY_RUNNING=0
REMOTEHOST=${REMOTEHOSTS[$RANDOM % ${#REMOTEHOSTS[@]}]}
PRIVOXY_SERVICE_CHECK_OUTPUT=$(brew services list | (grep "privoxy\s*started" || echo ""))
[ -n "${PRIVOXY_SERVICE_CHECK_OUTPUT}" ] && PRIVOXY_ALREADY_RUNNING=1



# Ask for the administrator password upfront
sudo -v 


function disable_proxy() { 
    echo -n "$(tput setaf 136)" # orange
    echo "Disabling HTTP/HTTPS proxy..."
    sudo networksetup -setwebproxystate $INTERFACE off 
    sudo networksetup -setsecurewebproxystate $INTERFACE off 
    unset http_proxy && unset https_proxy
    sudo sed -i ':a;N;$!ba;s/export https\?_proxy=.*//g' $SHELL_GLOBAL_PROFILE
    sudo sed -i ':begin;$!N;$!N;s/\n\n$//;tbegin;P;D' $SHELL_GLOBAL_PROFILE # Remove double newlines from file
    echo -n "$(tput setaf 64)" #green 
    echo "HTTP/HTTPS proxy disabled."
    
    if [[ $PRIVOXY_ALREADY_RUNNING -eq 0 ]]; then
        echo -n "$(tput setaf 136)" # orange
        echo "Stopping Privoxy..."
        brew services stop privoxy 
        echo -n "$(tput setaf 64)" #green 
        echo "Stopped Privoxy."
    else
        echo -n "$(tput setaf 136)" # orange
        #echo "-- At Launch --"
        #echo "${PRIVOXY_SERVICE_CHECK_OUTPUT}"
        #echo "-- Now --"
        #brew services list | egrep "privoxy\s+started"
        echo "Privoxy was previously running so not stopping it."    
    fi
    
    echo -n "$(tput sgr0)" # color reset
    exit 0
}

#This function is used to cleanly exit any script. It does this displaying a
# given error message, and exiting with an error code.
function error_exit {
    echo -n "$(tput setaf 1)" # red
    echo "$@"
    echo -n "$(tput sgr0)" # color reset
    disable_proxy
    exit 1
}
#Trap the killer signals so that we can exit with a good message.
trap "error_exit 'Received signal SIGHUP'" SIGHUP
trap "error_exit 'Received signal SIGINT'" SIGINT
trap "error_exit 'Received signal SIGTERM'" SIGTERM
trap "error_exit 'Received signal SIGKILL'" SIGKILL
trap "error_exit 'Received signal ERR'" ERR

#Alias the function so that it will print a message with the following format:
#prog-name(@line#): message
#We have to explicitly allow aliases, we do this because they make calling the
#function much easier (see example).
shopt -s expand_aliases
alias die='error_exit "Error ${0}(@`echo $(( $LINENO - 1 ))`):"'

 # Let's roll
 

echo -n "$(tput setaf 136)" # orange
echo "Enabling HTTP proxy..."
sudo networksetup -setwebproxy $INTERFACE $HOST $PORT
sudo networksetup -setwebproxystate $INTERFACE on
echo "export http_proxy=$HOST:$PORT" | sudo tee -a $SHELL_GLOBAL_PROFILE
echo "Enabling HTTPS proxy..."
sudo networksetup -setsecurewebproxy $INTERFACE $HOST $PORT
sudo networksetup -setsecurewebproxystate $INTERFACE on
echo "export https_proxy=${REMOTEHOST%:*}:${REMOTEHOST#*:}" | sudo tee -a $SHELL_GLOBAL_PROFILE
echo -n "$(tput setaf 64)" # green
echo "HTTP/HTTPS proxy $HOST:$PORT enabled."


if [[ $PRIVOXY_ALREADY_RUNNING -eq 0 ]]; then
    echo -n "$(tput setaf 136)" # orange
    echo "Starting Privoxy..."
    brew services start privoxy 
    echo -n "$(tput setaf 64)" # green
    echo "Privoxy started."
else
    echo -n "$(tput setaf 136)" # orange
    echo "Existing Privoxy service is already running. We will not attempt to start it."
    #echo "${PRIVOXY_SERVICE_CHECK_OUTPUT}"
fi
echo -n "$(tput setaf 64)" # green
echo "Privoxy is running."


echo -n "$(tput sgr0)" # color reset 


# # Enable the SOCKS5 proxy 
# ssh-add -l || ssh-add
# ./socks5-tunneled-proxy.sh &
# 
# # Enable the Tor proxy &
# ./tor-proxy.sh

# Keep-alive: update existing `sudo` time stamp until finished
while read -n1; do 
    sleep 1
done 2>/dev/null # trap ctrl-c and call disable_proxy()