l: add xdg-open settings

lass/2configs/baseX.nix

@@ -9,6 +9,7 @@ in {
     ./power-action.nix
     ./copyq.nix
     ./urxvt.nix
+    ./xdg-open.nix
     {
       hardware.pulseaudio = {
         enable = true;

lass/2configs/xdg-open.nix

@@ -0,0 +1,66 @@
+{ config, pkgs, lib, ... }: with import <stockholm/lib>; let
+
+  xdg-open-wrapper = pkgs.writeDashBin "xdg-open" ''
+    /run/wrappers/bin/sudo -u lass ${xdg-open} "$@"
+  '';
+
+  xdg-open = pkgs.writeBash "xdg-open" ''
+    set -e
+    FILE="$1"
+    mime=
+
+    case "$FILE" in
+      http://*|https://*)
+        mime=text/html
+        ;;
+      mailto:*)
+        mime=special/mailaddress
+        ;;
+      magnet:*)
+        mime=application/x-bittorrent
+        ;;
+      irc:*)
+        mime=x-scheme-handler/irc
+        ;;
+      *)
+        # it’s a file
+
+        # strip possible protocol
+        FILE=''${FILE#file://}
+        mime=''$(file -E --brief --mime-type "$FILE") \
+          || (echo "$mime" 1>&2; exit 1)
+          # ^ echo the error message of file
+        ;;
+    esac
+
+    case "$mime" in
+      special/mailaddress)
+        urxvtc --execute vim "$FILE" ;;
+      ${optionalString (hasAttr "browser" config.lass) ''
+      text/html)
+        ${config.lass.browser.select}/bin/browser-select "$FILE" ;;
+      text/xml)
+        ${config.lass.browser.select}/bin/browser-select "$FILE" ;;
+      ''}
+      text/*)
+        urxvtc --execute vim "$FILE" ;;
+      image/*)
+        sxiv "$FILE" ;;
+      application/x-bittorrent)
+        env DISPLAY=:0 transgui "$FILE" ;;
+      application/pdf)
+        zathura "$FILE" ;;
+      inode/directory)
+        sudo -u lass -i urxvtc --execute mc "$FILE" ;;
+      *)
+        # open dmenu and ask for program to open with
+        $(dmenu_path | dmenu) "$FILE";;
+    esac
+  '';
+in {
+  environment.systemPackages = [ xdg-open-wrapper ];
+
+  security.sudo.extraConfig = ''
+    cr ALL=(lass) NOPASSWD: ${xdg-open} *
+  '';
+}