services: web: rss: make configuration into a module

1 files changed, 71 insertions, 0 deletions

diff --git a/modules/rss-bridge.nix b/modules/rss-bridge.nix
new file mode 100644
index 0000000..c7aaf05
--- /dev/null
+++ b/modules/rss-bridge.nix
@@ -0,0 +1,71 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.services.rss-bridge;
+  rss-bridge = pkgs.rss-bridge.overrideAttrs (oldAttrs:
+    oldAttrs // {
+      installPhase = oldAttrs.installPhase + ''
+        pushd $out/bridges
+        ln -sf ${./ParisJazzClubBridge.php} ParisJazzClubBridge.php
+        ln -sf ${./MaisonDeLaRadioBridge.php} MaisonDeLaRadioBridge.php
+        ln -sf ${./FipAlbumsBridge.php} FipAlbumsBridge.php
+        ln -sf ${./WhatsOnMubiBridge.php} WhatsOnMubiBridge.php
+        popd
+      '' + lib.optionalString debug ''
+        touch $out/DEBUG
+      '';
+    });
+in {
+  options.services.rss-bridge = {
+    package = mkOption {
+      type = types.package;
+      description = "Which derivation to use.";
+      default = pkgs.rss-bridge;
+      defaultText = literalExample "pkgs.rss-bridge";
+    };
+    debug = mkEnableOption "debug mode";
+    extraBridges = mkOption {
+      type = types.listOf (types.submodule {
+        options = {
+          name = mkOption {
+            type = types.strMatching "[a-zA-Z0-9]*";
+            description = ''
+              The name of the bridge.
+              It need not include 'Bridge' at the end, unlike required in RSS-Bridge.
+            '';
+            example = "SomeAppWithANewsletter";
+          };
+          source = mkOption {
+            type = types.path;
+            description = ''
+              The path to a file whose contents is the PHP sourcecode of the bridge.
+              See also the RSS-Bridge documentation: https://rss-bridge.github.io/rss-bridge/Bridge_API/index.html.
+            '';
+          };
+        };
+      });
+      default = [ ];
+      description = ''
+        A list of additional bridges that aren't already included in RSS-Bridge.
+        These bridges are automatically whitelisted'';
+    };
+  };
+
+  config.services.rss-bridge.whitelist =
+    map (bridge: bridge.name) cfg.extraBridges;
+  config.services.nginx = mkIf (cfg.virtualHost != null) {
+    virtualHosts.${cfg.virtualHost}.root = mkIf (cfg.extraBridges != [ ])
+      (mkForce (pkgs.runCommand "rss-bridge" { } (''
+        mkdir -p $out/bridges
+        cp -r ${cfg.package}/* $out/
+        pushd $out/bridges 
+      '' + concatStringsSep "\n"
+        (map (bridge: ''ln -sf ${bridge.source} "${bridge.name}Bridge.php"'')
+          cfg.extraBridges) + ''
+            popd
+          '' + lib.optionalString cfg.debug ''
+            touch $out/DEBUG
+          '')));
+  };
+}