remove recurring-donations module

This module has failed to evaluate for quite some time.
We might bring it back someday with bolt12 and LNURL support.

README.md

@@ -75,7 +75,6 @@ NixOS modules ([src](modules/modules.nix))
   * [liquid](https://github.com/elementsproject/elements)
   * [JoinMarket](https://github.com/joinmarket-org/joinmarket-clientserver)
     * [JoinMarket Orderbook Watcher](https://github.com/JoinMarket-Org/joinmarket-clientserver/blob/master/docs/orderbook.md)
-  * [recurring-donations](modules/recurring-donations.nix): for periodic lightning payments
   * [bitcoin-core-hwi](https://github.com/bitcoin-core/HWI)
 * Helper
   * [netns-isolation](modules/netns-isolation.nix): isolates applications on the network-level via network namespaces

examples/configuration.nix

@@ -145,22 +145,6 @@
   #
   # Liquid can be controlled with command 'elements-cli'.
 
-  ### RECURRING-DONATIONS
-  # Set this to enable recurring donations. This is EXPERIMENTAL; it's
-  # not guaranteed that payments are succeeding or that you will notice payment
-  # failure.
-  # services.recurring-donations.enable = true;
-  # This automatically enables clightning.
-  #
-  # Specify the receivers of the donations. By default donations are every
-  # Monday at a randomized time. Check `journalctl -eu recurring-donations` or
-  # `lightning-cli listpayments` for successful lightning donations.
-  # services.recurring-donations.tallycoin = {
-  #   "<receiver name>" = <amount you wish to donate in sat>"
-  #   "<additional receiver name>" = <amount you wish to donate in sat>;
-  #   "djbooth007" = 1000;
-  # };
-
   ### Hardware wallets
   # Enable the following to allow using hardware wallets.
   # See https://github.com/bitcoin-core/HWI for more information.

modules/default.nix

@@ -8,7 +8,6 @@
   presets.secure-node = ./presets/secure-node.nix;
   rtl = ./rtl.nix;
   spark-wallet = ./spark-wallet.nix;
-  recurring-donations = ./recurring-donations.nix;
   lnd = ./lnd.nix;
   charge-lnd = ./charge-lnd.nix;
   joinmarket = ./joinmarket.nix;

modules/modules.nix

@@ -25,7 +25,6 @@
     ./joinmarket.nix
     ./joinmarket-ob-watcher.nix
     ./hardware-wallets.nix
-    ./recurring-donations.nix
 
     # Support features
     ./versioning.nix

modules/netns-isolation.nix

@@ -246,10 +246,6 @@ in {
         id = 17;
         # communicates with clightning over lightning-rpc socket
       };
-      recurring-donations = {
-        id = 20;
-        # communicates with clightning over lightning-rpc socket
-      };
       nginx = {
         id = 21;
       };

modules/presets/enable-tor.nix

@@ -19,7 +19,6 @@ in {
     # btcpayserver.enforceTor = true;
     nbxplorer.enforceTor = true;
     spark-wallet.enforceTor = true;
-    recurring-donations.enforceTor = true;
     lightning-pool.enforceTor = true;
     rtl.enforceTor = true;
   };

modules/recurring-donations.nix

@@ -1,107 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-let
-  options.services.recurring-donations = {
-    enable = mkEnableOption "recurring-donations";
-    tallycoin = mkOption {
-      type = types.attrs;
-      default = {};
-      description = ''
-        This option is used to specify tallycoin donation receivers using an
-        attribute set.  For example the following setting instructs the module
-        to repeatedly send 1000 satoshis to djbooth007.
-        {
-          "djbooth007" = 1000;
-        }
-      '';
-    };
-    interval = mkOption {
-      type = types.str;
-      default = "Mon *-*-* 00:00:00";
-      description = ''
-        Schedules the donations. Default is weekly on Mon 00:00:00. See `man
-        systemd.time` for further options.
-      '';
-    };
-    randomizedDelaySec = mkOption {
-      type = types.int;
-      default = 86400;
-      description = ''
-        Random delay to add to scheduled time for donation. Default is one day.
-      '';
-    };
-    enforceTor = nbLib.enforceTor;
-  };
-
-  cfg = config.services.recurring-donations;
-  nbLib = config.nix-bitcoin.lib;
-  recurring-donations-script = pkgs.writeScript "recurring-donations.sh" ''
-    LNCLI="${config.nix-bitcoin.pkgs.clightning}/bin/lightning-cli --lightning-dir=${config.services.clightning.dataDir}"
-    pay_tallycoin() {
-      NAME=$1
-      AMOUNT=$2
-      echo "Attempting to pay $AMOUNT sat to $NAME"
-      INVOICE=$(curl --socks5-hostname ${config.nix-bitcoin.torClientAddressWithPort} -d "satoshi_amount=$AMOUNT&payment_method=ln&id=$NAME&type=profile" -X POST https://api.tallyco.in/v1/payment/request/ | jq -r '.lightning_pay_request') 2> /dev/null
-      if [ -z "$INVOICE" ] || [ "$INVOICE" = "null" ]; then
-        echo "ERROR: did not get invoice from tallycoin"
-        return
-      fi
-      # Decode invoice and compare amount with requested amount
-      DECODED_AMOUNT=$($LNCLI decodepay "$INVOICE" | jq -r '.amount_msat' | head -c -8)
-      if [ -z "$DECODED_AMOUNT" ] || [ "$DECODED_AMOUNT" = "null" ]; then
-        echo "ERROR: did not get response from clightning"
-        return
-      fi
-      if [ $DECODED_AMOUNT -eq $AMOUNT ]; then
-        echo "Paying with invoice $INVOICE"
-        $LNCLI pay "$INVOICE"
-      else
-        echo "ERROR: requested amount and invoice amount do not match. $AMOUNT vs $DECODED_AMOUNT"
-        return
-      fi
-    }
-    ${ builtins.foldl'
-      (x: receiver: x +
-        ''
-        pay_tallycoin ${receiver} ${toString (builtins.getAttr receiver cfg.tallycoin)}
-        '')
-      ""
-      (builtins.attrNames cfg.tallycoin)
-    }
-  '';
-in {
-  inherit options;
-
-  config = mkIf cfg.enable {
-    services.clightning.enable = true;
-
-    systemd.services.recurring-donations = {
-      requires = [ "clightning.service" ];
-      after = [ "clightning.service" ];
-      path = with pkgs; [ nix-bitcoin.clightning curl jq ];
-      serviceConfig = nbLib.defaultHardening // {
-        ExecStart = "${pkgs.bash}/bin/bash ${recurring-donations-script}";
-        User = "recurring-donations";
-        Type = "oneshot";
-      } // nbLib.allowedIPAddresses cfg.enforceTor;
-    };
-    systemd.timers.recurring-donations = {
-      requires = [ "clightning.service" ];
-      after = [ "clightning.service" ];
-      timerConfig = {
-        Unit = "recurring-donations.service";
-        OnCalendar = cfg.interval;
-        RandomizedDelaySec = toString cfg.randomizedDelaySec;
-      };
-      wantedBy = [ "multi-user.target" ];
-    };
-
-    users.users.recurring-donations = {
-      isSystemUser = true;
-      group = "recurring-donations";
-      extraGroups = [ config.services.clightning.group ];
-    };
-    users.groups.recurring-donations = {};
-  };
-}