From 2e433e106f52d47f3bc9e533474b7e4d74389535 Mon Sep 17 00:00:00 2001
From: floatingghost <hannah@coffee-and-dreams.uk>
Date: Wed, 24 Aug 2022 14:36:33 +0000
Subject: [PATCH] generate-keys-at-registration-time (#181)

Reviewed-on: https://akkoma.dev/AkkomaGang/akkoma/pulls/181
---
 lib/mix/pleroma.ex            | 11 +++++++++-
 lib/mix/tasks/pleroma/user.ex | 39 +++++++++++++++++++++++++++++++++++
 lib/pleroma/user.ex           |  7 +++++++
 test/pleroma/user_test.exs    |  3 ++-
 4 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/lib/mix/pleroma.ex b/lib/mix/pleroma.ex
index f4a6bcf63..6431f0a1c 100644
--- a/lib/mix/pleroma.ex
+++ b/lib/mix/pleroma.ex
@@ -23,7 +23,15 @@ def start_pleroma do
     Pleroma.Config.Oban.warn()
     Pleroma.Application.limiters_setup()
     Application.put_env(:phoenix, :serve_endpoints, false, persistent: true)
-    Finch.start_link(name: MyFinch)
+
+    proxy_url = Pleroma.Config.get([:http, :proxy_url])
+    proxy = Pleroma.HTTP.AdapterHelper.format_proxy(proxy_url)
+
+    finch_config =
+      [:http, :adapter]
+      |> Pleroma.Config.get([])
+      |> Pleroma.HTTP.AdapterHelper.maybe_add_proxy_pool(proxy)
+      |> Keyword.put(:name, MyFinch)
 
     unless System.get_env("DEBUG") do
       Logger.remove_backend(:console)
@@ -45,6 +53,7 @@ def start_pleroma do
         Pleroma.Emoji,
         {Pleroma.Config.TransferTask, false},
         Pleroma.Web.Endpoint,
+        {Finch, finch_config},
         {Oban, oban_config},
         {Majic.Pool,
          [name: Pleroma.MajicPool, pool_size: Pleroma.Config.get([:majic_pool, :size], 2)]}
diff --git a/lib/mix/tasks/pleroma/user.ex b/lib/mix/tasks/pleroma/user.ex
index d2d416655..f420d68bb 100644
--- a/lib/mix/tasks/pleroma/user.ex
+++ b/lib/mix/tasks/pleroma/user.ex
@@ -258,6 +258,25 @@ def run(["untag", nickname | tags]) do
     end
   end
 
+  def run(["refetch_public_keys"]) do
+    start_pleroma()
+
+    Pleroma.User.Query.build(%{
+      external: true,
+      is_active: true
+    })
+    |> refetch_public_keys()
+  end
+
+  def run(["refetch_public_keys" | rest]) do
+    start_pleroma()
+
+    Pleroma.User.Query.build(%{
+      ap_id: rest
+    })
+    |> refetch_public_keys()
+  end
+
   def run(["invite" | rest]) do
     {options, [], []} =
       OptionParser.parse(rest,
@@ -519,6 +538,26 @@ def run(["fix_follow_state", local_user, remote_user]) do
     end
   end
 
+  defp refetch_public_keys(query) do
+    query
+    |> Pleroma.Repo.chunk_stream(50, :batches)
+    |> Stream.each(fn users ->
+      users
+      |> Enum.each(fn user ->
+        IO.puts("Re-Resolving: #{user.ap_id}")
+
+        with {:ok, user} <- Pleroma.User.fetch_by_ap_id(user.ap_id),
+             changeset <- Pleroma.User.update_changeset(user),
+             {:ok, _user} <- Pleroma.User.update_and_set_cache(changeset) do
+          :ok
+        else
+          error -> IO.puts("Could not resolve: #{user.ap_id}, #{inspect(error)}")
+        end
+      end)
+    end)
+    |> Stream.run()
+  end
+
   defp set_moderator(user, value) do
     {:ok, user} =
       user
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 2a1b5af94..4383f8f53 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -681,6 +681,7 @@ def register_changeset_ldap(struct, params = %{password: password})
     |> validate_exclusion(:nickname, Config.get([User, :restricted_nicknames]))
     |> validate_format(:nickname, local_nickname_regex())
     |> put_ap_id()
+    |> put_keys()
     |> unique_constraint(:ap_id)
     |> put_following_and_follower_and_featured_address()
   end
@@ -740,6 +741,7 @@ def register_changeset(struct, params \\ %{}, opts \\ []) do
     |> validate_length(:registration_reason, max: reason_limit)
     |> maybe_validate_required_email(opts[:external])
     |> put_password_hash
+    |> put_keys()
     |> put_ap_id()
     |> unique_constraint(:ap_id)
     |> put_following_and_follower_and_featured_address()
@@ -755,6 +757,11 @@ def maybe_validate_required_email(changeset, _) do
     end
   end
 
+  def put_keys(changeset) do
+    {:ok, pem} = Keys.generate_rsa_pem()
+    put_change(changeset, :keys, pem)
+  end
+
   def put_ap_id(changeset) do
     ap_id = ap_id(%User{nickname: get_field(changeset, :nickname)})
     put_change(changeset, :ap_id, ap_id)
diff --git a/test/pleroma/user_test.exs b/test/pleroma/user_test.exs
index 67136e95b..645622e43 100644
--- a/test/pleroma/user_test.exs
+++ b/test/pleroma/user_test.exs
@@ -620,13 +620,14 @@ test "it blocks blacklisted email domains" do
       assert changeset.valid?
     end
 
-    test "it sets the password_hash and ap_id" do
+    test "it sets the password_hash, ap_id and PEM key" do
       changeset = User.register_changeset(%User{}, @full_user_data)
 
       assert changeset.valid?
 
       assert is_binary(changeset.changes[:password_hash])
       assert changeset.changes[:ap_id] == User.ap_id(%User{nickname: @full_user_data.nickname})
+      assert is_binary(changeset.changes[:keys])
 
       assert changeset.changes.follower_address == "#{changeset.changes.ap_id}/followers"
     end