#!/bin/bash

function git_secure_checkout() {
	if [ "$CHANGE_DIR" != "" ] ; then
		cd "$CHANGE_DIR"
	fi
	path="$1"
	commit="$2"
	cd "$path"
	output="$(git checkout "${commit}^{commit}" 2>&1)"
	if [ $? -ne 0 ] ; then
		echo "[!] Commit hash $commit is absent from submodules $path !"
		echo "$output"
		cleanup
		exit 4
	fi
}

function git_secure_clone() {
	cd /tmp/bunkerized-nginx
	repo="$1"
	commit="$2"
	folder="$(echo "$repo" | sed -E "s@https://github.com/.*/(.*)\.git@\1@")"
	output="$(git clone "$repo" 2>&1)"
	if [ $? -ne 0 ] ; then
		echo "[!] Error cloning $1"
		echo "$output"
		cleanup
		exit 2
	fi
	cd "$folder"
	output="$(git checkout "${commit}^{commit}" 2>&1)"
	if [ $? -ne 0 ] ; then
		echo "[!] Commit hash $commit is absent from repository $repo"
		echo "$output"
		cleanup
		exit 3
	fi
}

function secure_download() {
	cd /tmp/bunkerized-nginx
	link="$1"
	file="$2"
	hash="$3"
	output="$(wget -q -O "$file" "$link" 2>&1)"
	if [ $? -ne 0 ] ; then
		echo "[!] Error downloading $link"
		echo "$output"
		cleanup
		exit 5
	fi
	check="$(sha512sum "$file" | cut -d ' ' -f 1)"
	if [ "$check" != "$hash" ] ; then
		echo "[!] Wrong hash from file $link (expected $hash got $check)"
		cleanup
		exit 6
	fi
}

function do_and_check_cmd() {
	if [ "$CHANGE_DIR" != "" ] ; then
		cd "$CHANGE_DIR"
	fi
	output=$("$@" 2>&1)
	ret="$?"
	if [ $ret -ne 0 ] ; then
		echo "[!] Error from command : $*"
		echo "$output"
		cleanup
		exit $ret
	fi
	#echo $output
	return 0
}

function cleanup() {
	echo "[*] Cleaning /tmp/bunkerized-nginx"
	rm -rf /tmp/bunkerized-nginx
}

function get_sign_repo_key() {
	key="-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (GNU/Linux)

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Va3l3WuB+rgKjsQ=
=EWWI
-----END PGP PUBLIC KEY BLOCK-----"
	echo "$key"
}

function get_sign_repo_key_rsa() {
	key="-----BEGIN PUBLIC KEY-----
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bQIDAQAB
-----END PUBLIC KEY-----"
	echo "$key"
}

function get_sign_source_keys() {
	keys="-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.11 (FreeBSD)

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=Tavt
-----END PGP PUBLIC KEY BLOCK-----
-----BEGIN PGP PUBLIC KEY BLOCK-----

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-----END PGP PUBLIC KEY BLOCK-----
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.11 (FreeBSD)

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uSoWwZQzaEdG5VGgm/vAwPzO+Cbam3r+Hs7OieykAy8fv+B+qhHn8Vc/520iGvdO
IAKpxl6oZrkbNL/wozOOLZni7iWl30C43ujxPiGRlg/YotHmhlnMic85QKyakXCS
WXI/JQARAQABiQElBBgBAgAPBQJOROL5AhsMBQkJZgGAAAoJEKZP1bF62zmoGCwH
/2a6zlu4Jwmv21vuroaAzECV8gp1luBeagn23EgMMukYhkbwLtL/0twAHmZlkpzl
atfq/EH2PgOasl2biJixqp7o9V7Uw6PS5JoY+1IrLEurG+FU2TN/Ysp12al4Z0Hh
p4yBRSEikISO9gkeUThixDPX1PjCpx8G/ZYqk+8jRCcDgWsUc/WV3VGPht68oDd7
56/hfQYc/V3eJmm5WYLVGV7Q69tGtp6D09SpoeqCD2K77auEBRVJ4jaT4B2/EfSb
x6y7Dy4Oxm8TBOQ2EZw2vEixKxtEt86/oBtLUkqVockPq/Ek9AL+KzT6VR1xU+Cm
CoHAyoqJeb/xLBwuKWg0/4U=
=iFlP
-----END PGP PUBLIC KEY BLOCK-----"
	echo "$keys"
}

# Variables
NTASK=$(nproc)

# Check if we are root
if [ $(id -u) -ne 0 ] ; then
	echo "[!] Run me as root"
	exit 1
fi

# Detect OS
OS=""
if [ "$(grep Debian /etc/os-release)" != "" ] ; then
	OS="debian"
elif [ "$(grep Ubuntu /etc/os-release)" != "" ] ; then
	OS="ubuntu"
elif [ "$(grep CentOS /etc/os-release)" != "" ] ; then
	OS="centos"
elif [ "$(grep Fedora /etc/os-release)" != "" ] ; then
	OS="fedora"
elif [ "$(grep Alpine /etc/os-release)" != "" ] ; then
	OS="alpine"
fi
if [ "$OS" = "" ] ; then
	echo "[!] Unsupported Operating System"
	exit 1
fi

# Create /tmp/bunkerized-nginx
echo "[*] Prepare /tmp/bunkerized-nginx"
if [ -e "/tmp/bunkerized-nginx" ] ; then
	do_and_check_cmd rm -rf /tmp/bunkerized-nginx
fi
do_and_check_cmd mkdir /tmp/bunkerized-nginx

# Create /opt/bunkerized-nginx
echo "[*] Prepare /opt/bunkerized-nginx"
if [ -e "/opt/bunkerized-nginx" ] ; then
	do_and_check_cmd rm -rf /opt/bunkerized-nginx
fi
do_and_check_cmd mkdir -p /opt/bunkerized-nginx/deps

# Check nginx version
NGINX_VERSION="$(nginx -V 2>&1 | sed -rn 's~^nginx version: nginx/(.*)$~\1~p')"
# Add nginx official repo and install
if [ "$NGINX_VERSION" = "" ] ; then
	get_sign_repo_key > /tmp/bunkerized-nginx/nginx_signing.key
	if [ "$OS" = "debian" ] || [ "$OS" = "ubuntu" ] ; then
		echo "[*] Add nginx official repository"
		do_and_check_cmd cp /tmp/bunkerized-nginx/nginx_signing.key /etc/apt/trusted.gpg.d/nginx_signing.asc
		do_and_check_cmd apt update
		DEBIAN_FRONTEND=noninteractive do_and_check_cmd apt install -y gnupg2 ca-certificates lsb-release software-properties-common
		do_and_check_cmd add-apt-repository "deb http://nginx.org/packages/${OS} $(lsb_release -cs) nginx"
		do_and_check_cmd apt update
		echo "[*] Install nginx"
		DEBIAN_FRONTEND=noninteractive do_and_check_cmd apt install -y nginx
	elif [ "$OS" = "centos" ] ; then
		echo "[*] Add nginx official repository"
		do_and_check_cmd yum install -y yum-utils
		cp /tmp/bunkerized-nginx/nginx_signing.key /etc/pki/rpm-gpg/RPM-GPG-KEY-nginx
		do_and_check_cmd rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-nginx
		repo="[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/\$releasever/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-nginx
enabled=1
module_hotfixes=true"
		echo "$repo" > /etc/yum.repos.d/nginx.repo
		echo "[*] Install nginx"
		do_and_check_cmd yum install -y nginx
	elif [ "$OS" = "fedora" ] ; then
		echo "[*] Install nginx"
		do_and_check_cmd dnf install -y nginx
	elif [ "$OS" = "alpine" ] ; then
		echo "[*] Add nginx official repository"
		get_sign_repo_key_rsa > /etc/apk/keys/nginx_signing.rsa.pub
		echo "@nginx http://nginx.org/packages/alpine/v$(egrep -o '^[0-9]+\.[0-9]+' /etc/alpine-release)/main" >> /etc/apk/repositories
		echo "[*] Install nginx"
		do_and_check_cmd apk add nginx@nginx
	fi
	NGINX_VERSION="$(nginx -V 2>&1 | sed -rn 's~^nginx version: nginx/(.*)$~\1~p')"
fi
echo "[*] Detected nginx version ${NGINX_VERSION}"
if [ "$NGINX_VERSION" != "1.20.1" ] ; then
	echo "/!\\ Warning : we recommend you to use nginx v1.20.1, you should uninstall your nginx version and run this script again ! /!\\"
fi

# Install dependencies
echo "[*] Update packet list"
if [ "$OS" = "debian" ] || [ "$OS" = "ubuntu" ] ; then
	do_and_check_cmd apt update
fi
echo "[*] Install compilation dependencies"
if [ "$OS" = "debian" ] || [ "$OS" = "ubuntu" ] ; then
	DEBIAN_DEPS="git autoconf pkg-config libpcre++-dev automake libtool g++ make liblua5.1-0-dev libgd-dev lua5.1 libssl-dev wget libbrotli-dev gnupg"
	DEBIAN_FRONTEND=noninteractive do_and_check_cmd apt install -y $DEBIAN_DEPS
	do_and_check_cmd cp -r /usr/include/lua5.1/* /usr/include
elif [ "$OS" = "centos" ] ; then
	do_and_check_cmd yum install -y epel-release
	CENTOS_DEPS="git autoconf pkg-config pcre-devel automake libtool gcc-c++ make lua-devel gd-devel lua openssl-devel wget brotli-devel gnupg"
	do_and_check_cmd yum install -y $CENTOS_DEPS
elif [ "$OS" = "fedora" ] ; then
	FEDORA_DEPS="git autoconf pkg-config pcre-devel automake libtool gcc-c++ make lua-devel gd-devel lua openssl-devel wget brotli-devel gnupg libxslt-devel perl-ExtUtils-Embed gperftools-devel"
	do_and_check_cmd dnf install -y $FEDORA_DEPS
elif [ "$OS" = "alpine" ] ; then
	ALPINE_DEPS="git build autoconf libtool automake git geoip-dev yajl-dev g++ gcc curl-dev libxml2-dev pcre-dev make linux-headers musl-dev lua-dev gd-dev gnupg brotli-dev openssl-dev"
	do_and_check_cmd apk add --no-cache --virtual build $ALPINE_DEPS
fi

# Download, compile and install libmaxminddb
echo "[*] Download maxmind/libmaxminddb"
secure_download "https://github.com/maxmind/libmaxminddb/releases/download/1.6.0/libmaxminddb-1.6.0.tar.gz" "libmaxminddb-1.6.0.tar.gz" "9394e8dd959982d4ef5d15a928d32700722ed9d6c9988d9cc1bf2f4e67de0a53cc6987e90aaef3a6926c9ff36ac378f7a1fe47818fda4f5a3a22539210b2d004"
CHANGE_DIR="/tmp/bunkerized-nginx" do_and_check_cmd tar -xzf libmaxminddb-1.6.0.tar.gz
echo "[*] Compile and install libmaxminddb"
CHANGE_DIR="/tmp/bunkerized-nginx/libmaxminddb-1.6.0" do_and_check_cmd ./configure --prefix=/opt/bunkerized-nginx/deps
CHANGE_DIR="/tmp/bunkerized-nginx/libmaxminddb-1.6.0" do_and_check_cmd make -j $NTASK
CHANGE_DIR="/tmp/bunkerized-nginx/libmaxminddb-1.6.0" do_and_check_cmd make install

# Download, compile and install ModSecurity
echo "[*] Clone SpiderLabs/ModSecurity"
git_secure_clone https://github.com/SpiderLabs/ModSecurity.git bf881a4eda343d37629e39ede5e28b70dc4067c0
echo "[*] Compile and install ModSecurity"
# temp fix : Debian run it twice
cd /tmp/bunkerized-nginx/ModSecurity && ./build.sh > /dev/null 2>&1
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" do_and_check_cmd sh build.sh
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" do_and_check_cmd git submodule init
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" do_and_check_cmd git submodule update
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" git_secure_checkout bindings/python 47a6925df187f96e4593afab18dc92d5f22bd4d5
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" git_secure_checkout others/libinjection bf234eb2f385b969c4f803b35fda53cffdd93922
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" git_secure_checkout test/test-cases/secrules-language-tests d03f4c1e930440df46c1faa37d820a919704d9da
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" do_and_check_cmd ./configure --disable-doxygen-doc --disable-dependency-tracking --disable-examples --prefix=/opt/bunkerized-nginx/deps --with-maxmind=/opt/bunkerized-nginx/deps
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" do_and_check_cmd make -j $NTASK
CHANGE_DIR="/tmp/bunkerized-nginx/ModSecurity" do_and_check_cmd make install-strip

# Download and install OWASP Core Rule Set
echo "[*] Clone coreruleset/coreruleset"
git_secure_clone https://github.com/coreruleset/coreruleset.git 18703f1bc47e9c4ec4096853d5fb4e2a204a07a2
echo "[*] Install coreruleset"
do_and_check_cmd mkdir /opt/bunkerized-nginx/crs
do_and_check_cmd cp -r /tmp/bunkerized-nginx/coreruleset/rules/* /opt/bunkerized-nginx/crs
do_and_check_cmd cp /tmp/bunkerized-nginx/coreruleset/crs-setup.conf.example /opt/bunkerized-nginx/crs-setup.conf

# Download ModSecurity-nginx module
echo "[*] Clone SpiderLabs/ModSecurity-nginx"
git_secure_clone https://github.com/SpiderLabs/ModSecurity-nginx.git 2497e6ac654d0b117b9534aa735b757c6b11c84f

# Download headers more module
echo "[*] Clone openresty/headers-more-nginx-module"
git_secure_clone https://github.com/openresty/headers-more-nginx-module.git f85af9649b858e21b400a2150a4c7b8ebd36e921

# Download GeoIP moduke
echo "[*] Clone leev/ngx_http_geoip2_module"
git_secure_clone https://github.com/leev/ngx_http_geoip2_module.git 1cabd8a1f68ea3998f94e9f3504431970f848fbf
do_and_check_cmd sed -i '1s:^:ngx_feature_path=/opt/bunkerized-nginx/deps/include\n:' /tmp/bunkerized-nginx/ngx_http_geoip2_module/config
do_and_check_cmd sed -i 's:^ngx_feature_libs=.*$:ngx_feature_libs="-Wl,-rpath,/opt/bunkerized-nginx/deps/lib -L/opt/bunkerized-nginx/deps/lib -lmaxminddb":' /tmp/bunkerized-nginx/ngx_http_geoip2_module/config

# Download cookie flag module
echo "[*] Clone AirisX/nginx_cookie_flag_module"
git_secure_clone https://github.com/AirisX/nginx_cookie_flag_module.git c4ff449318474fbbb4ba5f40cb67ccd54dc595d4

# Download brotli module
echo "[*] Clone google/ngx_brotli"
git_secure_clone https://github.com/google/ngx_brotli.git 9aec15e2aa6feea2113119ba06460af70ab3ea62

# Download lua-nginx module
git_secure_clone https://github.com/openresty/lua-nginx-module.git 9007d673e28938f5dfa7720438991e22b794d225

# Download, compile and install luajit2
echo "[*] Clone openresty/luajit2"
git_secure_clone https://github.com/openresty/luajit2.git 5ff674c5d9b75d6018994dfac3ce38aab3b8db12
echo "[*] Compile luajit2"
CHANGE_DIR="/tmp/bunkerized-nginx/luajit2" do_and_check_cmd make -j $NTASK
echo "[*] Install luajit2"
CHANGE_DIR="/tmp/bunkerized-nginx/luajit2" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download and install lua-resty-core
echo "[*] Clone openresty/lua-resty-core"
git_secure_clone https://github.com/openresty/lua-resty-core.git 12f26310a35e45c37157420f7e1f395a0e36e457
echo "[*] Install lua-resty-core"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-core" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download and install lua-resty-lrucache
echo "[*] Clone openresty/lua-resty-lrucache"
git_secure_clone https://github.com/openresty/lua-resty-lrucache.git f20bb8ac9489ba87d90d78f929552c2eab153caa
echo "[*] Install lua-resty-lrucache"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-lrucache" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download and install lua-resty-dns
echo "[*] Clone openresty/lua-resty-dns"
git_secure_clone https://github.com/openresty/lua-resty-dns.git 869d2fbb009b6ada93a5a10cb93acd1cc12bd53f
echo "[*] Install lua-resty-dns"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-dns" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download and install lua-resty-session
echo "[*] Clone bungle/lua-resty-session"
git_secure_clone https://github.com/bungle/lua-resty-session.git 2cd1f8484fdd429505ac33abf7a44adda1f367bf
echo "[*] Install lua-resty-session"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/lua-resty-session/lib/resty/* /opt/bunkerized-nginx/deps/lib/lua/resty

# Download and install lua-resty-random
echo "[*] Clone bungle/lua-resty-random"
git_secure_clone https://github.com/bungle/lua-resty-random.git 17b604f7f7dd217557ca548fc1a9a0d373386480
echo "[*] Install lua-resty-random"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-random" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download and install lua-resty-string
echo "[*] Clone openresty/lua-resty-string"
git_secure_clone https://github.com/openresty/lua-resty-string.git 3624678ca1c7c32e2fb16c18b7511863e074d542
echo "[*] Install lua-resty-string"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-string" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download, compile and install lua-cjson
echo "[*] Clone openresty/lua-cjson"
git_secure_clone https://github.com/openresty/lua-cjson.git 0df488874f52a881d14b5876babaa780bb6200ee
echo "[*] Compile lua-cjson"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-cjson" do_and_check_cmd make -j $NTASK
echo "[*] Install lua-cjson"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-cjson" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps LUA_CMODULE_DIR=/opt/bunkerized-nginx/deps/lib/lua LUA_MODULE_DIR=/opt/bunkerized-nginx/deps/lib/lua install
CHANGE_DIR="/tmp/bunkerized-nginx/lua-cjson" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps LUA_CMODULE_DIR=/opt/bunkerized-nginx/deps/lib/lua LUA_MODULE_DIR=/opt/bunkerized-nginx/deps/lib/lua install-extra

# Download, compile and install lua-gd
echo "[*] Clone ittner/lua-gd"
git_secure_clone https://github.com/ittner/lua-gd.git 2ce8e478a8591afd71e607506bc8c64b161bbd30
echo "[*] Compile lua-gd"
if [ "$OS" = "centos" ] || [ "$OS" = "fedora" ] ; then
	CHANGE_DIR="/tmp/bunkerized-nginx/lua-gd" do_and_check_cmd make LUAPKG=lua LUABIN=lua -j $NTASK
else
	CHANGE_DIR="/tmp/bunkerized-nginx/lua-gd" do_and_check_cmd make -j $NTASK
fi
echo "[*] Install lua-gd"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-gd" do_and_check_cmd make INSTALL_PATH=/opt/bunkerized-nginx/deps/lib/lua install

# Download and install lua-resty-http
echo "[*] Clone ledgetech/lua-resty-http"
git_secure_clone https://github.com/ledgetech/lua-resty-http.git 9bf951dfe162dd9710a0e1f4525738d4902e9d20
echo "[*] Install lua-resty-http"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-http" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps install

# Download and install lualogging
echo "[*] Clone Neopallium/lualogging"
git_secure_clone https://github.com/lunarmodules/lualogging.git 5973188a1f8fc31abd98aceed2a4853986d779e9
echo "[*] Install lualogging"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/lualogging/src/* /opt/bunkerized-nginx/deps/lib/lua

# Download, compile and install luasocket
echo "[*] Clone diegonehab/luasocket"
git_secure_clone https://github.com/diegonehab/luasocket.git 5b18e475f38fcf28429b1cc4b17baee3b9793a62
echo "[*] Compile luasocket"
CHANGE_DIR="/tmp/bunkerized-nginx/luasocket" do_and_check_cmd make -j $NTASK
echo "[*] Install luasocket"
CHANGE_DIR="/tmp/bunkerized-nginx/luasocket" do_and_check_cmd make prefix=/opt/bunkerized-nginx/deps CDIR_linux=lib/lua LDIR_linux=lib/lua install

# Download, compile and install luasec
echo "[*] Clone brunoos/luasec"
git_secure_clone https://github.com/brunoos/luasec.git d5df31561751ec0d4098dfc09c92ece215a56a5a
echo "[*] Compile luasec"
CHANGE_DIR="/tmp/bunkerized-nginx/luasec" do_and_check_cmd make linux -j $NTASK
echo "[*] Install luasec"
CHANGE_DIR="/tmp/bunkerized-nginx/luasec" do_and_check_cmd make LUACPATH=/opt/bunkerized-nginx/deps/lib/lua LUAPATH=/opt/bunkerized-nginx/deps/lib/lua install

# Download and install lua-cs-bouncer
echo "[*] Clone crowdsecurity/lua-cs-bouncer"
git_secure_clone https://github.com/crowdsecurity/lua-cs-bouncer.git 3c235c813fc453dcf51a391bc9e9a36ca77958b0
echo "[*] Install lua-cs-bouncer"
if [ ! -d /opt/bunkerized-nginx/deps/lib/lua/crowdsec ] ; then
	do_and_check_cmd mkdir /opt/bunkerized-nginx/deps/lib/lua/crowdsec
fi
do_and_check_cmd cp -r /tmp/bunkerized-nginx/lua-cs-bouncer/lib/* /opt/bunkerized-nginx/deps/lib/lua/crowdsec
do_and_check_cmd sed -i 's/require "lrucache"/require "resty.lrucache"/' /opt/bunkerized-nginx/deps/lib/lua/crowdsec/CrowdSec.lua
do_and_check_cmd sed -i 's/require "config"/require "crowdsec.config"/' /opt/bunkerized-nginx/deps/lib/lua/crowdsec/CrowdSec.lua

# Download and install lua-resty-iputils
echo "[*] Clone hamishforbes/lua-resty-iputils"
git_secure_clone https://github.com/hamishforbes/lua-resty-iputils.git 3151d6485e830421266eee5c0f386c32c835dba4
echo "[*] Install lua-resty-iputils"
CHANGE_DIR="/tmp/bunkerized-nginx/lua-resty-iputils" do_and_check_cmd make PREFIX=/opt/bunkerized-nginx/deps LUA_LIB_DIR=/opt/bunkerized-nginx/deps/lib/lua install

# Download nginx and decompress sources
echo "[*] Download nginx-${NGINX_VERSION}.tar.gz"
do_and_check_cmd wget -O "/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}.tar.gz" "https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz"
do_and_check_cmd wget -O "/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}.tar.gz.asc" "https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz.asc"
get_sign_source_keys > /tmp/bunkerized-nginx/nginx.key
do_and_check_cmd gpg --import /tmp/bunkerized-nginx/nginx.key
check=$(gpg --verify /tmp/bunkerized-nginx/nginx-${NGINX_VERSION}.tar.gz.asc /tmp/bunkerized-nginx/nginx-${NGINX_VERSION}.tar.gz 2>&1 | grep "^gpg: Good signature from ")
if [ "$check" = "" ] ; then
	echo "[!] Wrong signature from nginx source !!!"
	cleanup
	exit 1
fi
CHANGE_DIR="/tmp/bunkerized-nginx" do_and_check_cmd tar -xvzf nginx-${NGINX_VERSION}.tar.gz

# Compile dynamic modules
echo "[*] Compile dynamic modules"
CONFARGS="$(nginx -V 2>&1 | sed -n -e 's/^.*arguments: //p')"
CONFARGS="${CONFARGS/-Os -fomit-frame-pointer -g/-Os}"
if [ "$OS" = "fedora" ] ; then
	CONFARGS="$(echo -n "$CONFARGS" | sed "s/--with-ld-opt='.*'//" | sed "s/--with-cc-opt='.*'//")"
fi
echo "\#!/bin/bash" > "/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}/configure-fix.sh"
echo "./configure $CONFARGS --add-dynamic-module=/tmp/bunkerized-nginx/ModSecurity-nginx --add-dynamic-module=/tmp/bunkerized-nginx/headers-more-nginx-module --add-dynamic-module=/tmp/bunkerized-nginx/ngx_http_geoip2_module --add-dynamic-module=/tmp/bunkerized-nginx/nginx_cookie_flag_module --add-dynamic-module=/tmp/bunkerized-nginx/lua-nginx-module --add-dynamic-module=/tmp/bunkerized-nginx/ngx_brotli" >> "/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}/configure-fix.sh"
do_and_check_cmd chmod +x "/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}/configure-fix.sh"
CHANGE_DIR="/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}" LUAJIT_LIB="/opt/bunkerized-nginx/deps/lib -Wl,-rpath,/opt/bunkerized-nginx/deps/lib" LUAJIT_INC="/opt/bunkerized-nginx/deps/include/luajit-2.1" MODSECURITY_LIB="/opt/bunkerized-nginx/deps/lib" MODSECURITY_INC="/opt/bunkerized-nginx/deps/include" do_and_check_cmd ./configure-fix.sh
CHANGE_DIR="/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}" do_and_check_cmd make -j $NTASK modules
# TODO : move modules to /opt/bunkerized-nginx/modules
if [ ! -d "/usr/lib/nginx/modules" ] ; then
	do_and_check_cmd mkdir -p /usr/lib/nginx/modules
fi
do_and_check_cmd chown -R root:root /usr/lib/nginx
do_and_check_cmd chmod -R 755 /usr/lib/nginx
CHANGE_DIR="/tmp/bunkerized-nginx/nginx-${NGINX_VERSION}" do_and_check_cmd cp ./objs/*.so /usr/lib/nginx/modules
do_and_check_cmd chmod 744 /usr/lib/nginx/modules/*

# Remove alpine build dependencies
if [ "$OS" = "alpine" ] ; then
	apk del build > /dev/null 2>&1
fi
cleanup
echo "[*] Dependencies for bunkerized-nginx successfully installed !"

# Install dependencies
echo "[*] Update packet list"
if [ "$OS" = "debian" ] || [ "$OS" = "ubuntu" ] ; then
	do_and_check_cmd apt update
fi
echo "[*] Install runtime dependencies"
if [ "$OS" = "debian" ] || [ "$OS" = "ubuntu" ] ; then
	DEBIAN_DEPS="git cron curl python3 python3-pip procps"
	DEBIAN_FRONTEND=noninteractive do_and_check_cmd apt install -y $DEBIAN_DEPS
elif [ "$OS" = "centos" ] ; then
	do_and_check_cmd yum install -y epel-release
	CENTOS_DEPS="git crontabs curl python3 python3-pip procps"
	do_and_check_cmd yum install -y $CENTOS_DEPS
elif [ "$OS" = "fedora" ] ; then
	FEDORA_DEPS="git crontabs curl python3 python3-pip procps nginx-mod-stream"
	do_and_check_cmd dnf install -y $FEDORA_DEPS
	# Temp fix
	do_and_check_cmd cp /usr/lib64/nginx/modules/ngx_stream_module.so /usr/lib/nginx/modules/ngx_stream_module.so
elif [ "$OS" = "alpine" ] ; then
	ALPINE_DEPS="certbot bash libmaxminddb libgcc lua yajl libstdc++ openssl py3-pip git"
	do_and_check_cmd apk add --no-cache $ALPINE_DEPS
fi

# Clone the repo
echo "[*] Clone bunkerity/bunkerized-nginx"
#CHANGE_DIR="/tmp" do_and_check_cmd git_secure_clone https://github.com/bunkerity/bunkerized-nginx.git 09a2a4f9e531b93684b0916a5146091a818501d3
# TODO : do a secure clone
CHANGE_DIR="/tmp" do_and_check_cmd git clone https://github.com/bunkerity/bunkerized-nginx.git
CHANGE_DIR="/tmp/bunkerized-nginx" do_and_check_cmd git checkout dev

# Install Python dependencies
echo "[*] Install python dependencies"
do_and_check_cmd pip3 install --upgrade pip
do_and_check_cmd pip3 install -r /tmp/bunkerized-nginx/gen/requirements.txt
if [ "$OS" != "alpine" ] ; then
	do_and_check_cmd pip3 install -r /tmp/bunkerized-nginx/ui/requirements.txt
fi
do_and_check_cmd pip3 install cryptography --upgrade

# Copy generator
echo "[*] Copy generator"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/gen /opt/bunkerized-nginx

# Copy entrypoint
echo "[*] Copy entrypoint"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/entrypoint /opt/bunkerized-nginx

# Copy configs
echo "[*] Copy configs"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/confs /opt/bunkerized-nginx

# Copy scripts
echo "[*] Copy scripts"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/scripts /opt/bunkerized-nginx

# Copy LUA
echo "[*] Copy LUA"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/lua /opt/bunkerized-nginx

# Copy antibot
echo "[*] Copy antibot"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/antibot /opt/bunkerized-nginx

# Copy defaults
echo "[*] Copy defaults"
do_and_check_cmd cp -r /tmp/bunkerized-nginx/defaults /opt/bunkerized-nginx

# Copy settings
echo "[*] Copy settings"
do_and_check_cmd cp /tmp/bunkerized-nginx/settings.json /opt/bunkerized-nginx

# Copy sample variables.env
echo "[*] Copy sample variables.env"
do_and_check_cmd cp /tmp/bunkerized-nginx/misc/variables.env /opt/bunkerized-nginx

# Copy UI
if [ "$OS" != "alpine" ] ; then
	echo "[*] Copy UI"
	do_and_check_cmd cp -r /tmp/bunkerized-nginx/ui /opt/bunkerized-nginx
	do_and_check_cmd cp /tmp/bunkerized-nginx/ui/bunkerized-nginx-ui.service /etc/systemd/system
fi

# Copy bunkerized-nginx
echo "[*] Copy bunkerized-nginx"
do_and_check_cmd cp /tmp/bunkerized-nginx/helpers/bunkerized-nginx /usr/local/bin

# Create nginx user
if [ "$(grep "nginx:" /etc/passwd)" = "" ] ; then
	echo "[*] Add nginx user"
	do_and_check_cmd useradd -d /opt/bunkerized-nginx -s /usr/sbin/nologin nginx
fi

# Create www folder
if [ ! -d "/opt/bunkerized-nginx/www" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/www folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/www
fi

# Create http-confs folder
if [ ! -d "/opt/bunkerized-nginx/http-confs" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/http-confs folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/http-confs
fi

# Create server-confs folder
if [ ! -d "/opt/bunkerized-nginx/server-confs" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/server-confs folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/server-confs
fi

# Create modsec-confs folder
if [ ! -d "/opt/bunkerized-nginx/modsec-confs" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/modsec-confs folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/modsec-confs
fi

# Create modsec-crs-confs folder
if [ ! -d "/opt/bunkerized-nginx/modsec-crs-confs" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/modsec-crs-confs folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/modsec-crs-confs
fi

# Create cache folder
if [ ! -d "/opt/bunkerized-nginx/cache" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/cache folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/cache
fi

# Create pre-server-confs folder
if [ ! -d "/opt/bunkerized-nginx/pre-server-confs" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/pre-server-confs folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/pre-server-confs
fi

# Create acme-challenge folder
if [ ! -d "/opt/bunkerized-nginx/acme-challenge" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/acme-challenge folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/acme-challenge
fi

# Create plugins folder
if [ ! -d "/opt/bunkerized-nginx/plugins" ] ; then
	echo "[*] Create /opt/bunkerized-nginx/plugins folder"
	do_and_check_cmd mkdir /opt/bunkerized-nginx/plugins
fi

# Set permissions for /opt/bunkerized-nginx
echo "[*] Set permissions on files and folders"
do_and_check_cmd chown -R root:nginx /opt/bunkerized-nginx
do_and_check_cmd find /opt/bunkerized-nginx -type f -exec chmod 0740 {} \;
do_and_check_cmd find /opt/bunkerized-nginx -type d -exec chmod 0750 {} \;
do_and_check_cmd chmod 770 /opt/bunkerized-nginx/cache
do_and_check_cmd chmod 770 /opt/bunkerized-nginx/acme-challenge
do_and_check_cmd chmod 750 /opt/bunkerized-nginx/scripts/*
do_and_check_cmd chmod 750 /opt/bunkerized-nginx/entrypoint/*
do_and_check_cmd chmod 750 /opt/bunkerized-nginx/gen/main.py
# Set permissions for /usr/local/bin/bunkerized-nginx
do_and_check_cmd chown root:root /usr/local/bin/bunkerized-nginx
do_and_check_cmd chmod 750 /usr/local/bin/bunkerized-nginx
# Set permissions for /opt
do_and_check_cmd chmod u+rx /opt
# Set permissions for /etc/nginx
do_and_check_cmd chown -R nginx:nginx /etc/nginx
do_and_check_cmd find /etc/nginx -type f -exec chmod 0774 {} \;
do_and_check_cmd find /etc/nginx -type d -exec chmod 0775 {} \;
# Set permissions for /etc/systemd/system/bunkerized-nginx-ui.service
if [ "$OS" != "alpine" ] ; then
	do_and_check_cmd chown root:root /etc/systemd/system/bunkerized-nginx-ui.service
	do_and_check_cmd chmod 744 /etc/systemd/system/bunkerized-nginx-ui.service
fi

# Prepare log files and folders
echo "[*] Prepare log files and folders"
if [ ! -e "/var/log/nginx" ] ; then
	do_and_check_cmd mkdir /var/log/nginx
fi
if [ ! -e "/var/log/nginx/access.log" ] ; then
	do_and_check_cmd touch /var/log/nginx/access.log
fi
if [ ! -e "/var/log/nginx/error.log" ] ; then
	do_and_check_cmd touch /var/log/nginx/error.log
fi
if [ ! -e "/var/log/nginx/modsec_audit.log" ] ; then
	do_and_check_cmd touch /var/log/nginx/modsec_audit.log
fi
if [ ! -e "/var/log/nginx/jobs.log" ] ; then
	do_and_check_cmd touch /var/log/nginx/jobs.log
fi
if [ ! -e "/var/log/nginx/ui.log" ] ; then
	do_and_check_cmd touch /var/log/nginx/ui.log
fi
do_and_check_cmd chown -R root:nginx /var/log/nginx
do_and_check_cmd chmod -R 770 /var/log/nginx/

# Prepare Let's Encrypt files and folders
echo "[*] Prepare Let's Encrypt files and folders"
if [ ! -e "/var/log/letsencrypt" ] ; then
	do_and_check_cmd mkdir /var/log/letsencrypt
fi
do_and_check_cmd chown root:nginx /var/log/letsencrypt
do_and_check_cmd chmod 770 /var/log/letsencrypt
if [ ! -e "/etc/letsencrypt" ] ; then
	do_and_check_cmd mkdir /etc/letsencrypt
fi
do_and_check_cmd chown root:nginx /etc/letsencrypt
do_and_check_cmd chmod 770 /etc/letsencrypt
if [ ! -e "/var/lib/letsencrypt" ] ; then
	do_and_check_cmd mkdir /var/lib/letsencrypt
fi
do_and_check_cmd chown root:nginx /var/lib/letsencrypt
do_and_check_cmd chmod 770 /var/lib/letsencrypt

# Install cron
echo "[*] Add jobs to crontab"
if [ "$OS" = "debian" ] || [ "$OS" = "ubuntu" ] ; then
	CRON_PATH="/var/spool/cron/crontabs/nginx"
elif [ "$OS" = "centos" ] || [ "$OS" = "fedora" ] ; then
	CRON_PATH="/var/spool/cron/nginx"
elif [ "$OS" = "alpine" ] ; then
	CRON_PATH="/etc/crontabs/nginx"
fi
do_and_check_cmd cp /tmp/bunkerized-nginx/misc/cron "$CRON_PATH"
do_and_check_cmd chown root:nginx "$CRON_PATH"
do_and_check_cmd chmod 740 "$CRON_PATH"

# Download abusers list
echo "[*] Download abusers list"
do_and_check_cmd /opt/bunkerized-nginx/scripts/abusers.sh

# Download TOR exit nodes list
echo "[*] Download TOR exit nodes list"
do_and_check_cmd /opt/bunkerized-nginx/scripts/exit-nodes.sh

# Download proxies list
echo "[*] Download proxies list"
do_and_check_cmd /opt/bunkerized-nginx/scripts/proxies.sh

# Download referrers list
echo "[*] Download referrers list"
do_and_check_cmd /opt/bunkerized-nginx/scripts/referrers.sh

# Download user agents list
echo "[*] Download user agents list"
do_and_check_cmd /opt/bunkerized-nginx/scripts/user-agents.sh

# Download geoip database
echo "[*] Download geoip DB"
do_and_check_cmd /opt/bunkerized-nginx/scripts/geoip.sh

# We're done
echo "[*] Remove temp files"
do_and_check_cmd rm -rf /tmp/bunkerized-nginx
echo "[*] bunkerized-nginx successfully installed !"