viber: wrap with bubblewrap to disable $HOME access

This reverts commit 3106fe565d.

flake.lock

@@ -89,11 +89,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1698873617,
-        "narHash": "sha256-FfGFcfbULwbK1vD+H0rslIOfmy4g8f2hXiPkQG3ZCTk=",
+        "lastModified": 1698250431,
+        "narHash": "sha256-qs2gTeH4wpnWPO6Oi6sOhp2IhG0i0DzcnrJxIY3/CP8=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "48b0a30202516e25d9885525fbb200a045f23f26",
+        "rev": "09587fbbc6a669f7725613e044c2577dc5d43ab5",
         "type": "github"
       },
       "original": {
@@ -125,11 +125,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1698611440,
-        "narHash": "sha256-jPjHjrerhYDy3q9+s5EAsuhyhuknNfowY6yt6pjn9pc=",
+        "lastModified": 1697723726,
+        "narHash": "sha256-SaTWPkI8a5xSHX/rrKzUe+/uVNy6zCGMXgoeMb7T9rg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0cbe9f69c234a7700596e943bfae7ef27a31b735",
+        "rev": "7c9cc5a6e5d38010801741ac830a3f8fd667a7a0",
         "type": "github"
       },
       "original": {
@@ -171,11 +171,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1698544399,
-        "narHash": "sha256-vhRmPyEyoPkrXF2iykBsWHA05MIaOSmMRLMF7Hul6+s=",
+        "lastModified": 1697929210,
+        "narHash": "sha256-RkQZif6QhswEwv7484mrKfIU8XmIWm+ED6llbr4IyxM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d87c5d8c41c9b3b39592563242f3a448b5cc4bc9",
+        "rev": "fb000224952bf7749a9e8b3779104ef7ea4465c8",
         "type": "github"
       },
       "original": {
@@ -273,11 +273,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1698929376,
-        "narHash": "sha256-TmROaV9W6HArdTUgxLN334Kw+CradxWHw1HYM/3H6xI=",
+        "lastModified": 1697943852,
+        "narHash": "sha256-DaBxUPaZhQ3yLCmAATshYB7qo7NwcMvSFWz9T3bjYYY=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "84d6b27dc71ac02422e192c35806d06915d2bf67",
+        "rev": "30a0ba4a20703b4bfe047fe5def1fc24978e322c",
         "type": "github"
       },
       "original": {

home/home_packages.nix

@@ -109,5 +109,6 @@
       inputs.nvim.packages.x86_64-linux.nvim
       (import ../packages/zapzap/default.nix {inherit pkgs;})
       (pkgs.callPackage ../packages/viber/default.nix {})
+      (pkgs.callPackage ../packages/bubblewrap/default.nix {})
     ];
 }

packages/bubblewrap/default.nix

@@ -0,0 +1,56 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  docbook_xsl,
+  libxslt,
+  meson,
+  ninja,
+  pkg-config,
+  bash-completion,
+  libcap,
+  libselinux,
+}:
+stdenv.mkDerivation rec {
+  pname = "bubblewrap";
+  version = "0.8.0";
+
+  src = fetchFromGitHub {
+    owner = "rhendric";
+    repo = "bubblewrap";
+    rev = "23ff0f875b3a0200c1796daa01173ecec7deaf88";
+    hash = "sha256-EWsuAGsShaHEmLi0jUHX2bFQZkinIOsRbgB7tZSfq8E=";
+  };
+
+  postPatch = ''
+    substituteInPlace tests/libtest.sh \
+      --replace "/var/tmp" "$TMPDIR"
+  '';
+
+  nativeBuildInputs = [
+    docbook_xsl
+    libxslt
+    meson
+    ninja
+    pkg-config
+  ];
+
+  buildInputs = [
+    bash-completion
+    libcap
+    libselinux
+  ];
+
+  # incompatible with Nix sandbox
+  doCheck = false;
+
+  meta = with lib; {
+    changelog = "https://github.com/containers/bubblewrap/releases/tag/${src.rev}";
+    description = "Unprivileged sandboxing tool";
+    homepage = "https://github.com/containers/bubblewrap";
+    license = licenses.lgpl2Plus;
+    maintainers = with maintainers; [dotlambda];
+    platforms = platforms.linux;
+    mainProgram = "bwrap";
+  };
+}

packages/viber/default.nix

@@ -3,6 +3,9 @@
   brotli,
   cups,
   curl,
+  bubblewrap,
+  bash,
+  writeShellScriptBin,
   dbus,
   dpkg,
   expat,
@@ -112,7 +115,16 @@ stdenv.mkDerivation {
     xorg.libxkbfile
   ];
 
-  installPhase = ''
+  installPhase = let
+    viberWrap = writeShellScriptBin "viberWrap" ''
+      ${bubblewrap}/bin/bwrap --bind / / \
+      --dev /dev \
+      --tmpfs $HOME \
+      --bind  $HOME/.ViberPC/ $HOME/.ViberPC \
+      --bind  $HOME/Downloads/ $HOME/Downloads \
+      $@
+    '';
+  in ''
     dpkg-deb -x $src $out
     mkdir -p $out/bin
 
@@ -130,7 +142,10 @@ stdenv.mkDerivation {
       --set QT_XKB_CONFIG_ROOT "${xorg.xkeyboardconfig}/share/X11/xkb" \
       --set QTCOMPOSE "${xorg.libX11.out}/share/X11/locale" \
       --set QML2_IMPORT_PATH "$out/opt/viber/qml"
-    ln -s $out/opt/viber/Viber $out/bin/viber
+
+    echo "#!${bash}/bin/bash" > $out/bin/viber
+    echo "${viberWrap}/bin/viberWrap $out/opt/viber/Viber" >> $out/bin/viber
+    chmod +x $out/bin/viber
 
     mv $out/usr/share $out/share
     rm -rf $out/usr
@@ -140,7 +155,6 @@ stdenv.mkDerivation {
       --replace /opt/viber/Viber $out/opt/viber/Viber \
       --replace /usr/share/ $out/share/
   '';
-
   dontStrip = true;
   dontPatchELF = true;