nixpkgs/pkgs/applications/networking/expressvpn/default.nix
2022-06-11 17:10:33 +05:30

99 lines
2.5 KiB
Nix

{ autoPatchelfHook
, buildFHSUserEnv
, dpkg
, fetchurl
, inotify-tools
, lib
, stdenvNoCC
, sysctl
, writeScript
}:
let
pname = "expressvpn";
clientVersion = "3.25.0";
clientBuild = "13";
version = lib.strings.concatStringsSep "." [ clientVersion clientBuild ];
expressvpnBase = stdenvNoCC.mkDerivation {
inherit pname version;
src = fetchurl {
url = "https://www.expressvpn.works/clients/linux/expressvpn_${version}-1_amd64.deb";
hash = "sha256-lyDjG346FrgT7SZbsWET+Hexl9Un6mzMukfO2PwlInA=";
};
nativeBuildInputs = [ dpkg autoPatchelfHook ];
dontConfigure = true;
dontBuild = true;
unpackPhase = ''
runHook preUnpack
dpkg --fsys-tarfile $src | tar --extract
runHook postUnpack
'';
installPhase = ''
runHook preInstall
mv usr/ $out/
runHook postInstall
'';
};
expressvpndFHS = buildFHSUserEnv {
name = "expressvpnd";
# When connected, it directly creates/deletes resolv.conf to change the DNS entries.
# Since it's running in an FHS environment, it has no effect on actual resolv.conf.
# Hence, place a watcher that updates host resolv.conf when FHS resolv.conf changes.
runScript = writeScript "${pname}-wrapper" ''
cp /host/etc/resolv.conf /etc/resolv.conf;
while inotifywait /etc 2>/dev/null;
do
cp /etc/resolv.conf /host/etc/resolv.conf;
done &
expressvpnd --client-version ${clientVersion} --client-build ${clientBuild}
'';
# expressvpnd binary has hard-coded the path /sbin/sysctl hence below workaround.
extraBuildCommands = ''
chmod +w sbin
ln -s ${sysctl}/bin/sysctl sbin/sysctl
'';
# The expressvpnd binary also uses hard-coded paths to the other binaries and files
# it ships with, hence the FHS environment.
targetPkgs = pkgs: with pkgs; [
expressvpnBase
inotify-tools
iproute2
];
};
in
stdenvNoCC.mkDerivation {
inherit pname version;
dontUnpack = true;
dontConfigure = true;
dontBuild = true;
installPhase = ''
runHook preInstall
mkdir -p $out/bin $out/share
ln -s ${expressvpnBase}/bin/expressvpn $out/bin
ln -s ${expressvpndFHS}/bin/expressvpnd $out/bin
ln -s ${expressvpnBase}/share/{bash-completion,doc,man} $out/share/
runHook postInstall
'';
meta = with lib; {
description = "CLI client for ExpressVPN";
homepage = "https://www.expressvpn.com";
license = licenses.unfree;
platforms = [ "x86_64-linux" ];
maintainers = with maintainers; [ yureien ];
};
}