ejabberd: hack to build with newly-added assets deps for mod_invites

This should be optional, but instead Bootstrap + jQuery are added to as
dependency for building Ejabberd. jQuery is no longer a dependency of
Bootstrap so it should be gone. The docs allow you to opt out of
mod_invites or point to your own endpoint but the dependencies are now
mistakenly required. The script to get the dependencies fetches with
cURL which won’t run in the sandbox. Since SRIs are required for the
runtime, it also means we can _only_ use this specific version of
Bootstrap too.

Author: toastal

pkgs/by-name/ej/ejabberd/package.nix

@@ -18,6 +18,7 @@
   autoreconfHook,
   gawk,
   fetchFromGitHub,
+  fetchurl,
   fetchgit,
   beamPackages,
   nixosTests,
@@ -35,6 +36,7 @@
   withRedis ? false,
   withImagemagick ? false,
   imagemagick,
+  unzip,
 }:
 
 let
@@ -136,6 +138,21 @@ let
     "ezlib"
   ];
 
+  # Required now since the Makefile doesn’t make this an optional dependency
+  # despite every indication that it should be. Hopefully this is temporary.
+  # See: https://github.com/processone/ejabberd/issues/4554
+  invitePageDeps = {
+    # Ideally this could be removed too as jQuery isn’t Bootstrap 5.x requirement
+    # See: https://github.com/processone/ejabberd/issues/4555
+    jquery = fetchurl {
+      url = "https://code.jquery.com/jquery-4.0.0.min.js";
+      sha256 = "39a546ea9ad97f8bfaf5d3e0e8f8556adb415e470e59007ada9759dce472adaa";
+    };
+    bootstrap = fetchurl {
+      url = "https://github.com/twbs/bootstrap/releases/download/v5.3.8/bootstrap-5.3.8-dist.zip";
+      sha256 = "3258c873cbcb1e2d81f4374afea2ea6437d9eee9077041073fd81dd579c5ba6b";
+    };
+  };
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "ejabberd";
@@ -150,6 +167,7 @@ stdenv.mkDerivation (finalAttrs: {
         rebar3_hex
       ];
     })
+    unzip # invitePageDeps
   ];
 
   buildInputs = [
@@ -189,13 +207,22 @@ stdenv.mkDerivation (finalAttrs: {
   ]
   ++ lib.optional withSqlite "--with-sqlite3=${sqlite.dev}";
 
-  enableParallelBuilding = true;
+  # The derivation wants to execute 2 dl_invites_page_deps.sh in parallel
+  # causing unzip conflicts
+  enableParallelBuilding = false;
 
   postPatch = ''
     patchShebangs .
     mkdir -p _build/default/lib
     touch _build/default/lib/.got
     touch _build/default/lib/.built
+    # HACK: patching deps fetcher shell script to cp in our dependencies to
+    # circumvent cURL being called to fetch dependencies from the Makefile
+    # (which fails in the sandbox).
+    sed -i \
+      -e 's|curl .* $jquery .*|cp "${invitePageDeps.jquery}" "$jquery"|' \
+      -e 's|curl .* $bootstrap .*|cp "${invitePageDeps.bootstrap}" "$bootstrap"|' \
+      tools/dl_invites_page_deps.sh
   '';
 
   env.REBAR_IGNORE_DEPS = 1;