2 files changed, 31 insertions, 3 deletions

diff --git a/hel.nix b/hel.nix
index 74441e27..b9628a65 100644
--- a/hel.nix
+++ b/hel.nix
@@ -107,8 +107,8 @@
       nodeName = "hel";
       remoteNodes = ["isaac" "ymir"]; # legacy name for odin
       sshUser = {
-        openssh.authorizedKeys.keys = [ ''no-port-forwarding,no-X11-forwarding,no-agent-forwarding,command="/var/setuid-wrappers/uucico" ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEgtDHA7oDIaRwggGGznNaKZF68rFTziqefSCn1t9ZKe uucp@odin''
-                                        ''no-port-forwarding,no-X11-forwarding,no-agent-forwarding,command="/var/setuid-wrappers/uucico" ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFH1QWdgoC03nzW5GBuCl2pqASHeIXIYtE9IInHdaKcO uucp@ymir''
+        openssh.authorizedKeys.keys = [ ''no-port-forwarding,no-X11-forwarding,no-agent-forwarding,command="/var/setuid-wrappers/uucico" ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFH1QWdgoC03nzW5GBuCl2pqASHeIXIYtE9IInHdaKcO uucp@ymir''
+                                        ''no-port-forwarding,no-X11-forwarding,no-agent-forwarding,command="/var/setuid-wrappers/uucico" ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJhACtnt9+3j2ev4QVA2QBlPtblPnu7yol2njgfMlHtC uucp@odin''
                                       ];
       };
       sshConfig = ''
@@ -119,8 +119,14 @@
           Hostname ymir.niflheim.yggdrasil
           IdentityFile ~/.ssh/ymir
       '';
-      commandPath = [];
+      commandPath = [ "${pkgs.callPackage ./hel/recv-media.nix {}}/bin" ];
       defaultCommands = [];
+      protocols = {
+        isaac = "g";
+      };
+      commands = {
+        isaac = ["recv-media"];
+      };
     };
   };
 
diff --git a/hel/recv-media.nix b/hel/recv-media.nix
new file mode 100644
index 00000000..f85598f4
--- /dev/null
+++ b/hel/recv-media.nix
@@ -0,0 +1,22 @@
+{ stdenv, coreutils, ffmpeg-full writeScriptBin }:
+
+writeScriptBin "recv-media" ''
+  #!${stdenv.shell}
+
+  PATH=${ffmpeg-full}/bin:${coreutils}/bin
+
+  dir=/var/media
+  
+  file="''${dir}/.$(basename "$1")"
+  file2="''${dir}/.copy.$(basename "$1")"
+  nFile="''${dir}/$(basename "$1")"
+  cat > "''${file}"
+  if ! ffmpeg -v warning -i "''${file}" -c copy "''${file2}" 2>&1 </dev/null; then
+    echo "Download of ''${file} failed"
+    rm -f "''${nFile}" "''${file}" "''${file2}"
+    exit 1
+  else
+    rm -f "''${file}"
+    mv "''${file2}" "''${nFile}"
+  fi
+'';