#!/bin/bash

# Install PoshC2
echo ""
echo """
   __________            .__.     _________  ________
   \_______  \____  _____|  |__   \_   ___ \ \_____  \\\\
    |     ___/  _ \/  ___/  |  \  /    \  \/  /  ____/
    |    |   ( <_>)___  \|   Y  \ \     \____/       \\\\
    |____|   \____/____  >___|  /  \______  /\_______ \\\\
                       \/     \/          \/         \/
    ================= www.PoshC2.co.uk ================"""

echo ""
echo ""


if [[ $(id -u) -ne 0 ]]; then
    echo -e "[-] You must run this installer as root.\nQuitting!";
    exit 1;
fi

command -v curl >/dev/null 2>&1
if [ "$?" != "0" ]; then
    command -v apt >/dev/null 2>&1

    if [ "$?" == "0" ]; then
        echo "[+] Performing apt-get update"
        apt-get update
        echo ""
        echo "[+] Installing curl for downloading scripts"
        apt-get install -y curl
    else
        echo "[-] Curl not found and apt not found in order to install it, please install curl on your system and try again."
        exit 1
    fi
fi

# A POSIX variable
OPTIND=1         # Reset in case getopts has been used previously in the shell.

# Initialize our own variables:
GIT_BRANCH="master"

show_help(){
    echo "*** PoshC2 Install script for Docker ***"
    echo "Usage:"
    echo "./Install-for-Docker.sh -b <git branch>"
    echo ""
    echo "Default is the master branch"
}

while getopts "h?b:" opt; do
    case "$opt" in
    h|\?)
        show_help
        exit 0
        ;;
    b)  GIT_BRANCH="$OPTARG"
        ;;
    esac
done

echo "[+] Installing PoshC2 for Docker for branch \"$GIT_BRANCH\""
echo ""
echo ""
echo "[+] Installing scripts to /usr/local/bin"
rm -f /usr/local/bin/_posh-common
rm -f /usr/local/bin/fpc
rm -f /usr/local/bin/posh
rm -f /usr/local/bin/posh-server
rm -f /usr/local/bin/posh-config
rm -f /usr/local/bin/posh-log
rm -f /usr/local/bin/posh-service
rm -f /usr/local/bin/posh-stop-service
rm -f /usr/local/bin/posh-project
rm -f /usr/local/bin/posh-docker-clean
rm -f /usr/local/bin/posh-stop-server
rm -f /usr/local/bin/posh-docker-debug
rm -f /usr/local/bin/sharpsocks
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/_posh-common -o /usr/local/bin/_posh-common >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/fpc -o /usr/local/bin/fpc >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-docker -o /usr/local/bin/posh >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-docker-server -o /usr/local/bin/posh-server >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-config -o /usr/local/bin/posh-config >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-log -o /usr/local/bin/posh-log >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-service -o /usr/local/bin/posh-service >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-stop-service -o /usr/local/bin/posh-stop-service >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-project -o /usr/local/bin/posh-project >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-docker-clean -o /usr/local/bin/posh-docker-clean >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-docker-stop-server -o /usr/local/bin/posh-stop-server >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/posh-docker-debug -o /usr/local/bin/posh-docker-debug >/dev/null
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/sharpsocks-docker -o /usr/local/bin/sharpsocks >/dev/null
chmod +x /usr/local/bin/fpc
chmod +x /usr/local/bin/posh
chmod +x /usr/local/bin/posh-server
chmod +x /usr/local/bin/posh-config
chmod +x /usr/local/bin/posh-log
chmod +x /usr/local/bin/posh-service
chmod +x /usr/local/bin/posh-stop-service
chmod +x /usr/local/bin/posh-project
chmod +x /usr/local/bin/posh-docker-clean
chmod +x /usr/local/bin/posh-stop-server
chmod +x /usr/local/bin/posh-docker-debug
chmod +x /usr/local/bin/posh-docker-debug
chmod +x /usr/local/bin/sharpsocks

if [ "$(uname)" == "Darwin" ]; then
    IS_MAC=1
else
    IS_MAC=0
fi

if [ "$IS_MAC" = true ]; then
    POSH_PROJECTS_DIR="/private/var/poshc2"
else
    POSH_PROJECTS_DIR="/var/poshc2"
fi

mkdir -p "$POSH_PROJECTS_DIR"
curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/config-template.yml -o "$POSH_PROJECTS_DIR/config-template.yml" >/dev/null

if [ ! $IS_MAC ]; then
    curl https://raw.githubusercontent.com/nettitude/PoshC2/$GIT_BRANCH/resources/scripts/poshc2.service -o /lib/systemd/system/poshc2.service >/dev/null
fi

echo ""
echo "[+] Setup complete"
echo """
   __________            .__.     _________  ________
   \_______  \____  _____|  |__   \_   ___ \ \_____  \\\\
    |     ___/  _ \/  ___/  |  \  /    \  \/  /  ____/
    |    |   ( <_>)___  \|   Y  \ \     \____/       \\\\
    |____|   \____/____  >___|  /  \______  /\_______ \\\\
                       \/     \/          \/         \/
    ================= www.PoshC2.co.uk ================"""
echo ""
echo "Create a new project with: "
echo "# posh-project -n <project-name>"
echo ""
echo "Then edit the config file - run: "
echo "# posh-config"
echo ""
echo "Then run:"
echo "# posh-server <-- This will run the C2 server, which communicates with Implants and receives task output"
echo "# posh-stop-server <-- This will stop the server container"
echo "# posh <-- This will run the ImplantHandler, used to issue commands to the server and implants"
echo ""
echo "Other options:"
if [ ! $IS_MAC ]; then
    echo "posh-service <-- This will run the C2 server as a service instead of in the foreground"
    echo "posh-stop-service <-- This will stop the service"
fi
echo "posh-log <-- This will view the C2 log if the server is already running"
echo "Add the following to your .bashrc or .zshrc to be able to quickly switch to the PoshC2 project directory using posh-dir"
echo "
function posh-dir(){
    cd \`posh-project -g\`
}
"