Merge remote-tracking branch 'gum/master'

25 files changed, 285 insertions, 37 deletions

diff --git a/lass/1systems/blue/config.nix b/lass/1systems/blue/config.nix
index 43c80d52f..14f4971f7 100644
--- a/lass/1systems/blue/config.nix
+++ b/lass/1systems/blue/config.nix
@@ -9,19 +9,12 @@ with import <stockholm/lib>;
 
     <stockholm/lass/2configs/blue.nix>
     <stockholm/lass/2configs/syncthing.nix>
+    <stockholm/lass/2configs/sync/decsync.nix>
+    <stockholm/lass/2configs/sync/weechat.nix>
   ];
 
   krebs.build.host = config.krebs.hosts.blue;
 
-  krebs.syncthing.folders = [
-    { id = "contacts"; path = "/home/lass/contacts"; peers = [ "mors" "blue" "green" "phone" ]; }
-    { path = "/home/lass/.weechat"; peers = [ "blue" "green" "mors" ]; }
-  ];
-  lass.ensure-permissions = [
-    { folder = "/home/lass/contacts"; owner = "lass"; group = "syncthing"; }
-    { folder = "/home/lass/.weechat"; owner = "lass"; group = "syncthing"; }
-  ];
-
   environment.shellAliases = {
     deploy = pkgs.writeDash "deploy" ''
       set -eu
diff --git a/lass/1systems/daedalus/config.nix b/lass/1systems/daedalus/config.nix
index e28fbf2f8..6e3df12f0 100644
--- a/lass/1systems/daedalus/config.nix
+++ b/lass/1systems/daedalus/config.nix
@@ -27,6 +27,12 @@ with import <stockholm/lib>;
         enable = true;
         systemWide = true;
       };
+      programs.chromium = {
+        enable = true;
+        extensions = [
+          "cjpalhdlnbpafiamejdnhcphjbkeiagm" # ublock origin
+        ];
+      };
       environment.systemPackages = with pkgs; [
         pavucontrol
         #firefox
@@ -40,7 +46,7 @@ with import <stockholm/lib>;
         wine
         geeqie
         vlc
-        minecraft
+        zsnes
       ];
       nixpkgs.config.firefox.enableAdobeFlash = true;
       services.xserver.enable = true;
diff --git a/lass/1systems/green/config.nix b/lass/1systems/green/config.nix
index 6ae157e38..0b4b50ee4 100644
--- a/lass/1systems/green/config.nix
+++ b/lass/1systems/green/config.nix
@@ -8,20 +8,13 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/exim-retiolum.nix>
     <stockholm/lass/2configs/mail.nix>
 
-    #<stockholm/lass/2configs/blue.nix>
     <stockholm/lass/2configs/syncthing.nix>
+    <stockholm/lass/2configs/sync/decsync.nix>
+    <stockholm/lass/2configs/sync/weechat.nix>
   ];
 
   krebs.build.host = config.krebs.hosts.green;
 
-  krebs.syncthing.folders = [
-    { id = "contacts"; path = "/home/lass/contacts"; peers = [ "mors" "blue" "green" "phone" ]; }
-  ];
-  lass.ensure-permissions = [
-    { folder = "/home/lass/contacts"; owner = "lass"; group = "syncthing"; }
-  ];
-
-
   #networking.nameservers = [ "1.1.1.1" ];
 
   #time.timeZone = "Europe/Berlin";
diff --git a/lass/1systems/icarus/config.nix b/lass/1systems/icarus/config.nix
index 06b1e7366..d8c8699ae 100644
--- a/lass/1systems/icarus/config.nix
+++ b/lass/1systems/icarus/config.nix
@@ -20,6 +20,7 @@
     <stockholm/lass/2configs/syncthing.nix>
     <stockholm/lass/2configs/nfs-dl.nix>
     <stockholm/lass/2configs/prism-share.nix>
+    <stockholm/lass/2configs/ssh-cryptsetup.nix>
   ];
 
   krebs.build.host = config.krebs.hosts.icarus;
diff --git a/lass/1systems/iso.nix b/lass/1systems/iso.nix
index be064bed2..a814cc6b9 100644
--- a/lass/1systems/iso.nix
+++ b/lass/1systems/iso.nix
@@ -6,7 +6,6 @@ with import <stockholm/lib>;
     <nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix>
     <stockholm/krebs>
     <stockholm/lass/3modules>
-    <stockholm/lass/5pkgs>
     <stockholm/lass/2configs/mc.nix>
     <stockholm/lass/2configs/vim.nix>
     {
@@ -40,9 +39,10 @@ with import <stockholm/lib>;
       networking.hostName = "lass-iso";
     }
     {
+      nixpkgs.config.packageOverrides = import <stockholm/lass/5pkgs> pkgs;
       krebs.enable = true;
       krebs.build.user = config.krebs.users.lass;
-      krebs.build.host = config.krebs.hosts.iso;
+      krebs.build.host = {};
     }
     {
       nixpkgs.config.allowUnfree = true;
@@ -174,11 +174,13 @@ with import <stockholm/lib>;
           user = "lass";
         };
         windowManager.default = "xmonad";
-        windowManager.session = [{
+        windowManager.session = let
+          xmonad-lass = pkgs.callPackage <stockholm/lass/5pkgs/custom/xmonad-lass> { inherit config; };
+        in [{
           name = "xmonad";
           start = ''
             ${pkgs.xorg.xhost}/bin/xhost +LOCAL:
-            ${pkgs.xmonad-lass}/bin/xmonad &
+            ${xmonad-lass}/bin/xmonad &
             waitPID=$!
           '';
         }];
diff --git a/lass/1systems/littleT/config.nix b/lass/1systems/littleT/config.nix
index eee23ee60..d44e62053 100644
--- a/lass/1systems/littleT/config.nix
+++ b/lass/1systems/littleT/config.nix
@@ -8,6 +8,7 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/retiolum.nix>
     <stockholm/lass/2configs/blue-host.nix>
     <stockholm/lass/2configs/syncthing.nix>
+    <stockholm/lass/2configs/green-host.nix>
   ];
 
   networking.networkmanager.enable = true;
diff --git a/lass/1systems/morpheus/config.nix b/lass/1systems/morpheus/config.nix
index 0d82ba611..cab267d54 100644
--- a/lass/1systems/morpheus/config.nix
+++ b/lass/1systems/morpheus/config.nix
@@ -30,4 +30,12 @@ with import <stockholm/lib>;
       ];
     };
   };
+
+
+  services.xserver.desktopManager.default = "none";
+  services.xserver.displayManager.lightdm.autoLogin = {
+    enable = true;
+    user = "lass";
+    timeout = 5;
+  };
 }
diff --git a/lass/1systems/mors/config.nix b/lass/1systems/mors/config.nix
index 52bcc9e15..7e183f40f 100644
--- a/lass/1systems/mors/config.nix
+++ b/lass/1systems/mors/config.nix
@@ -26,6 +26,8 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/syncthing.nix>
     <stockholm/lass/2configs/otp-ssh.nix>
     <stockholm/lass/2configs/c-base.nix>
+    <stockholm/lass/2configs/sync/decsync.nix>
+    <stockholm/lass/2configs/sync/weechat.nix>
     <stockholm/lass/2configs/br.nix>
     <stockholm/lass/2configs/ableton.nix>
     <stockholm/lass/2configs/starcraft.nix>
@@ -41,8 +43,6 @@ with import <stockholm/lib>;
       krebs.iptables.tables.filter.INPUT.rules = [
         #risk of rain
         { predicate = "-p tcp --dport 11100"; target = "ACCEPT"; }
-        #chromecast
-        { predicate = "-p udp -m multiport --sports 32768:61000 -m multiport --dports 32768:61000"; target = "ACCEPT"; }
         #quake3
         { predicate = "-p tcp --dport 27950:27965"; target = "ACCEPT"; }
         { predicate = "-p udp --dport 27950:27965"; target = "ACCEPT"; }
@@ -50,14 +50,10 @@ with import <stockholm/lib>;
     }
     {
       krebs.syncthing.folders = [
-        { id = "contacts"; path = "/home/lass/contacts"; peers = [ "mors" "blue" "green" "phone" ]; }
-        { id = "the_playlist"; path = "/home/lass/tmp/the_playlist"; peers = [ "mors" "phone" ]; }
-        { path = "/home/lass/.weechat"; peers = [ "blue" "green" "mors" ]; }
+        { id = "the_playlist"; path = "/home/lass/tmp/the_playlist"; peers = [ "mors" "phone" "prism" ]; }
       ];
       lass.ensure-permissions = [
-        { folder = "/home/lass/contacts"; owner = "lass"; group = "syncthing"; }
         { folder = "/home/lass/tmp/the_playlist"; owner = "lass"; group = "syncthing"; }
-        { folder = "/home/lass/.weechat"; owner = "lass"; group = "syncthing"; }
       ];
     }
     {
@@ -94,6 +90,7 @@ with import <stockholm/lib>;
         pkgs.ovh-zone
         pkgs.bank
         pkgs.adb-sync
+        pkgs.transgui
       ];
     }
     {
@@ -137,6 +134,18 @@ with import <stockholm/lib>;
     (pkgs.writeDashBin "btc-kraken" ''
       ${pkgs.curl}/bin/curl -Ss  'https://api.kraken.com/0/public/Ticker?pair=BTCEUR' | ${pkgs.jq}/bin/jq '.result.XXBTZEUR.a[0]'
     '')
+    (pkgs.writeDashBin "krebsco.de" ''
+      TMPDIR=$(${pkgs.coreutils}/bin/mktemp -d)
+      ${pkgs.brain}/bin/brain show krebs-secrets/ovh-secrets.json > "$TMPDIR"/ovh-secrets.json
+      OVH_ZONE_CONFIG="$TMPDIR"/ovh-secrets.json ${pkgs.krebszones}/bin/krebszones import
+      ${pkgs.coreutils}/bin/rm -rf "$TMPDIR"
+    '')
+    (pkgs.writeDashBin "lassul.us" ''
+      TMPDIR=$(${pkgs.coreutils}/bin/mktemp -d)
+      ${pkgs.pass}/bin/pass show admin/ovh/api.config > "$TMPDIR"/ovh-secrets.json
+      OVH_ZONE_CONFIG="$TMPDIR"/ovh-secrets.json ${pkgs.ovh-zone}/bin/ovh-zone import /etc/zones/lassul.us lassul.us
+      ${pkgs.coreutils}/bin/rm -rf "$TMPDIR"
+    '')
   ];
 
   #TODO: fix this shit
diff --git a/lass/1systems/prism/config.nix b/lass/1systems/prism/config.nix
index b3b7ac0df..d7b0b701a 100644
--- a/lass/1systems/prism/config.nix
+++ b/lass/1systems/prism/config.nix
@@ -413,6 +413,42 @@ with import <stockholm/lib>;
         ];
       };
     }
+    { #macos mounting of yellow
+      krebs.iptables.tables.filter.INPUT.rules = [
+        { predicate = "-i wiregrill -p tcp --dport 139"; target = "ACCEPT"; }
+        { predicate = "-i wiregrill -p tcp --dport 445"; target = "ACCEPT"; }
+        { predicate = "-i wiregrill -p udp --dport 137"; target = "ACCEPT"; }
+        { predicate = "-i wiregrill -p udp --dport 138"; target = "ACCEPT"; }
+      ];
+      users.users.smbguest = {
+        name = "smbguest";
+        uid = config.ids.uids.smbguest;
+        description = "smb guest user";
+        home = "/home/share";
+        createHome = true;
+      };
+      services.samba = {
+        enable = true;
+        enableNmbd = true;
+        shares = {
+          download = {
+            path = "/var/download/finished";
+            "read only" = "yes";
+            browseable = "yes";
+            "guest ok" = "yes";
+          };
+        };
+        extraConfig = ''
+          guest account = smbguest
+          map to guest = bad user
+          # disable printing
+          load printers = no
+          printing = bsd
+          printcap name = /dev/null
+          disable spoolss = yes
+        '';
+      };
+    }
   ];
 
   krebs.build.host = config.krebs.hosts.prism;
diff --git a/lass/1systems/shodan/config.nix b/lass/1systems/shodan/config.nix
index 39c0791fc..5de87d790 100644
--- a/lass/1systems/shodan/config.nix
+++ b/lass/1systems/shodan/config.nix
@@ -15,6 +15,8 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/bitcoin.nix>
     <stockholm/lass/2configs/backup.nix>
     <stockholm/lass/2configs/blue-host.nix>
+    <stockholm/lass/2configs/green-host.nix>
+    <stockholm/lass/2configs/ssh-cryptsetup.nix>
   ];
 
   krebs.build.host = config.krebs.hosts.shodan;
diff --git a/lass/1systems/skynet/config.nix b/lass/1systems/skynet/config.nix
index 0bf3e6b4d..70787e514 100644
--- a/lass/1systems/skynet/config.nix
+++ b/lass/1systems/skynet/config.nix
@@ -8,6 +8,7 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/blue-host.nix>
     <stockholm/lass/2configs/power-action.nix>
     <stockholm/lass/2configs/syncthing.nix>
+    <stockholm/lass/2configs/green-host.nix>
     {
       services.xserver.enable = true;
       services.xserver.desktopManager.xfce.enable = true;
diff --git a/lass/1systems/yellow/config.nix b/lass/1systems/yellow/config.nix
index 8b3b2814f..cda0d0a33 100644
--- a/lass/1systems/yellow/config.nix
+++ b/lass/1systems/yellow/config.nix
@@ -31,6 +31,7 @@ with import <stockholm/lib>;
       download-dir = "/var/download/finished";
       incomplete-dir = "/var/download/incoming";
       incomplete-dir-enable = true;
+      message-level = 1;
       umask = "002";
       rpc-whitelist-enabled = false;
       rpc-host-whitelist-enabled = false;
diff --git a/lass/2configs/baseX.nix b/lass/2configs/baseX.nix
index 26d6622ae..5003d2279 100644
--- a/lass/2configs/baseX.nix
+++ b/lass/2configs/baseX.nix
@@ -9,6 +9,7 @@ in {
     ./power-action.nix
     ./copyq.nix
     ./urxvt.nix
+    ./xdg-open.nix
     {
       hardware.pulseaudio = {
         enable = true;
diff --git a/lass/2configs/exim-smarthost.nix b/lass/2configs/exim-smarthost.nix
index aec59261c..4216bd67a 100644
--- a/lass/2configs/exim-smarthost.nix
+++ b/lass/2configs/exim-smarthost.nix
@@ -100,6 +100,9 @@ with import <stockholm/lib>;
       { from = "box@lassul.us"; to = lass.mail; }
       { from = "paloalto@lassul.us"; to = lass.mail; }
       { from = "subtitles@lassul.us"; to = lass.mail; }
+      { from = "lobsters@lassul.us"; to = lass.mail; }
+      { from = "fysitech@lassul.us"; to = lass.mail; }
+      { from = "threema@lassul.us"; to = lass.mail; }
     ];
     system-aliases = [
       { from = "mailer-daemon"; to = "postmaster"; }
diff --git a/lass/2configs/green-host.nix b/lass/2configs/green-host.nix
new file mode 100644
index 000000000..860d7c113
--- /dev/null
+++ b/lass/2configs/green-host.nix
@@ -0,0 +1,83 @@
+{ config, lib, pkgs, ... }:
+with import <stockholm/lib>;
+
+{
+  imports = [
+    <stockholm/lass/2configs/container-networking.nix>
+    <stockholm/lass/2configs/syncthing.nix>
+    { #hack for already defined
+      systemd.services."container@green".reloadIfChanged = mkForce false;
+      systemd.services."container@green".preStart = ''
+        ${pkgs.mount}/bin/mount | ${pkgs.gnugrep}/bin/grep -q ' on /var/lib/containers/green '
+      '';
+      systemd.services."container@green".postStop = ''
+        set -x
+        ${pkgs.umount}/bin/umount /var/lib/containers/green
+        ls -la /dev/mapper/control
+        ${pkgs.devicemapper}/bin/dmsetup ls
+        ${pkgs.cryptsetup}/bin/cryptsetup -v luksClose /var/lib/sync-containers/green.img
+      '';
+    }
+  ];
+
+  lass.ensure-permissions = [
+    { folder = "/var/lib/sync-containers"; owner = "root"; group = "syncthing"; }
+  ];
+
+  krebs.syncthing.folders = [
+    { path = "/var/lib/sync-containers"; peers = [ "icarus" "skynet" "littleT" "shodan" ]; }
+  ];
+
+  system.activationScripts.containerPermissions = ''
+    mkdir -p /var/lib/containers
+    chmod 711 /var/lib/containers
+  '';
+
+  containers.green = {
+    config = { ... }: {
+      environment.systemPackages = [
+        pkgs.git
+        pkgs.rxvt_unicode.terminfo
+      ];
+      services.openssh.enable = true;
+      users.users.root.openssh.authorizedKeys.keys = [
+        config.krebs.users.lass.pubkey
+      ];
+    };
+    autoStart = false;
+    enableTun = true;
+    privateNetwork = true;
+    hostAddress = "10.233.2.15";
+    localAddress = "10.233.2.16";
+  };
+
+  environment.systemPackages = [
+    (pkgs.writeDashBin "start-green" ''
+      set -fu
+      CONTAINER='green'
+      IMAGE='/var/lib/sync-containers/green.img'
+
+      ${pkgs.cryptsetup}/bin/cryptsetup status "$CONTAINER" >/dev/null
+      if [ "$?" -ne 0 ]; then
+        ${pkgs.cryptsetup}/bin/cryptsetup luksOpen "$IMAGE" "$CONTAINER"
+      fi
+
+      mkdir -p /var/lib/containers/"$CONTAINER"
+
+      ${pkgs.mount}/bin/mount | grep -q " on /var/lib/containers/"$CONTAINER" "
+      if [ "$?" -ne 0 ]; then
+        ${pkgs.mount}/bin/mount -o sync /dev/mapper/"$CONTAINER" /var/lib/containers/"$CONTAINER"
+      fi
+
+      STATE=$(${pkgs.nixos-container}/bin/nixos-container status "$CONTAINER")
+      if [ "$STATE" = 'down' ]; then
+        ${pkgs.nixos-container}/bin/nixos-container start "$CONTAINER"
+      fi
+      ping -c1 green.r
+      if [ "$?" -ne 0 ]; then
+        ${pkgs.nixos-container}/bin/nixos-container run green -- nixos-rebuild -I /var/src switch
+      fi
+
+    '')
+  ];
+}
diff --git a/lass/2configs/mail.nix b/lass/2configs/mail.nix
index 0803846aa..6de111ba8 100644
--- a/lass/2configs/mail.nix
+++ b/lass/2configs/mail.nix
@@ -233,8 +233,4 @@ in {
     tag-new-mails
     tag-old-mails
   ];
-
-  nixpkgs.config.packageOverrides = opkgs: {
-    notmuch = (opkgs.notmuch.overrideAttrs (o: { doCheck = false; }));
-  };
 }
diff --git a/lass/2configs/prism-share.nix b/lass/2configs/prism-share.nix
index 70e616ec6..aa3eb541d 100644
--- a/lass/2configs/prism-share.nix
+++ b/lass/2configs/prism-share.nix
@@ -21,7 +21,7 @@ with import <stockholm/lib>;
     shares = {
       incoming = {
         path = "/mnt/prism";
-        "read only" = "no";
+        "read only" = "yes";
         browseable = "yes";
         "guest ok" = "yes";
       };
diff --git a/lass/2configs/radio.nix b/lass/2configs/radio.nix
index f88b2627b..d67d970f8 100644
--- a/lass/2configs/radio.nix
+++ b/lass/2configs/radio.nix
@@ -59,6 +59,9 @@ in {
     group = "radio";
     musicDirectory = "/home/radio/the_playlist/music";
     extraConfig = ''
+      log_level "default"
+      auto_update "yes"
+
       audio_output {
         type        "shout"
         encoding    "lame"
@@ -245,4 +248,10 @@ in {
       alias ${html};
     '';
   };
+  krebs.syncthing.folders = [
+    { id = "the_playlist"; path = "/home/radio/music/the_playlist"; peers = [ "mors" "phone" "prism" ]; }
+  ];
+  lass.ensure-permissions = [
+    { folder = "/home/radio/music/the_playlist"; owner = "radio"; group = "syncthing"; }
+  ];
 }
diff --git a/lass/2configs/ssh-cryptsetup.nix b/lass/2configs/ssh-cryptsetup.nix
new file mode 100644
index 000000000..c5e1c5928
--- /dev/null
+++ b/lass/2configs/ssh-cryptsetup.nix
@@ -0,0 +1,17 @@
+{ config, ... }:
+{
+  boot.initrd = {
+    network = {
+      enable = true;
+      ssh = {
+        enable = true;
+        authorizedKeys = with config.krebs.users; [
+          config.krebs.users.lass-mors.pubkey
+          config.krebs.users.lass-blue.pubkey
+          config.krebs.users.lass-shodan.pubkey
+          config.krebs.users.lass-icarus.pubkey
+        ];
+      };
+    };
+  };
+}
diff --git a/lass/2configs/sync/decsync.nix b/lass/2configs/sync/decsync.nix
new file mode 100644
index 000000000..94569c94d
--- /dev/null
+++ b/lass/2configs/sync/decsync.nix
@@ -0,0 +1,8 @@
+{
+  krebs.syncthing.folders = [
+    { id = "decsync"; path = "/home/lass/decsync"; peers = [ "mors" "blue" "green" "phone" ]; }
+  ];
+  lass.ensure-permissions = [
+    { folder = "/home/lass/decsync"; owner = "lass"; group = "syncthing"; }
+  ];
+}
diff --git a/lass/2configs/sync/weechat.nix b/lass/2configs/sync/weechat.nix
new file mode 100644
index 000000000..d10177b1d
--- /dev/null
+++ b/lass/2configs/sync/weechat.nix
@@ -0,0 +1,8 @@
+{
+  krebs.syncthing.folders = [
+    { path = "/home/lass/.weechat"; peers = [ "blue" "green" "mors" ]; }
+  ];
+  lass.ensure-permissions = [
+    { folder = "/home/lass/.weechat"; owner = "lass"; group = "syncthing"; }
+  ];
+}
diff --git a/lass/2configs/syncthing.nix b/lass/2configs/syncthing.nix
index d8b3c9f90..fc10b2cb4 100644
--- a/lass/2configs/syncthing.nix
+++ b/lass/2configs/syncthing.nix
@@ -16,7 +16,7 @@ with import <stockholm/lib>;
     key = toString <secrets/syncthing.key>;
     peers = mapAttrs (n: v: { id = v.syncthing.id; }) (filterAttrs (n: v: v.syncthing.id != null) config.krebs.hosts);
     folders = [
-      { path = "/home/lass/sync"; peers = [ "icarus" "mors" "skynet" "blue" "green" "littleT" "prism"]; }
+      { path = "/home/lass/sync"; peers = [ "icarus" "mors" "skynet" "blue" "green" "littleT" "prism" "shodan" ]; }
     ];
   };
 
diff --git a/lass/2configs/websites/domsen.nix b/lass/2configs/websites/domsen.nix
index 5bd5a7cac..2131c7c62 100644
--- a/lass/2configs/websites/domsen.nix
+++ b/lass/2configs/websites/domsen.nix
@@ -119,7 +119,7 @@ in {
     authenticators.PLAIN = ''
       driver = plaintext
       public_name = PLAIN
-      server_condition = ''${run{${config.lass.usershadow.path}/bin/verify_arg ${config.lass.usershadow.pattern} $auth2 $auth3}{yes}{no}}
+      server_condition = ''${run{/run/wrappers/bin/shadow_verify_arg ${config.lass.usershadow.pattern} $auth2 $auth3}{yes}{no}}
     '';
     authenticators.LOGIN = ''
       driver = plaintext
diff --git a/lass/2configs/xdg-open.nix b/lass/2configs/xdg-open.nix
new file mode 100644
index 000000000..824c36dc7
--- /dev/null
+++ b/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: ${xdg-open} *
+  '';
+}
diff --git a/lass/3modules/usershadow.nix b/lass/3modules/usershadow.nix
index d967a108a..51da2ec93 100644
--- a/lass/3modules/usershadow.nix
+++ b/lass/3modules/usershadow.nix
@@ -45,6 +45,10 @@
       source = "${usershadow}/bin/verify_pam";
       owner = "root";
     };
+    security.wrappers.shadow_verify_arg = {
+      source = "${usershadow}/bin/verify_arg";
+      owner = "root";
+    };
   };
 
   usershadow = let {