Add keys to instance_settings

lib/nulla/key_gen.ex

@@ -0,0 +1,16 @@
+defmodule Nulla.KeyGen do
+  def generate_keys do
+    rsa_key = :public_key.generate_key({:rsa, 2048, 65537})
+
+    {:RSAPrivateKey, :"two-prime", n, e, _d, _p, _q, _dp, _dq, _qi, _other} = rsa_key
+    public_key = {:RSAPublicKey, n, e}
+
+    private_entry = {:PrivateKeyInfo, :public_key.der_encode(:RSAPrivateKey, rsa_key), :not_encrypted}
+    public_entry  = {:SubjectPublicKeyInfo, :public_key.der_encode(:RSAPublicKey, public_key), :not_encrypted}
+
+    private_pem = :public_key.pem_encode([private_entry])
+    public_pem  = :public_key.pem_encode([public_entry])
+
+    {public_pem, private_pem}
+  end
+end

lib/nulla/models/instance_settings.ex

@@ -11,7 +11,7 @@ defmodule Nulla.Models.InstanceSettings do
     field :registration, :boolean, default: false
     field :max_characters, :integer, default: 5000
     field :max_upload_size, :integer, default: 50
-    field :offset, :integer, default: 100
+    field :api_offset, :integer, default: 100
     field :public_key, :string
     field :private_key, :string
   end
@@ -26,7 +26,7 @@ defmodule Nulla.Models.InstanceSettings do
       :registration,
       :max_characters,
       :max_upload_size,
-      :offset,
+      :api_offset,
       :public_key,
       :private_key
     ])
@@ -37,7 +37,7 @@ defmodule Nulla.Models.InstanceSettings do
       :registration,
       :max_characters,
       :max_upload_size,
-      :offset,
+      :api_offset,
       :public_key,
       :private_key
     ])

lib/nulla/utils.ex

@@ -28,7 +28,7 @@ defmodule Nulla.Utils do
 
       %User{id: user_id} ->
         instance_settings = InstanceSettings.get_instance_settings!()
-        per_page = instance_settings.offset
+        per_page = instance_settings.api_offset
         offset = (page - 1) * per_page
 
         query =
@@ -67,7 +67,7 @@ defmodule Nulla.Utils do
 
       %User{id: user_id} ->
         instance_settings = InstanceSettings.get_instance_settings!()
-        per_page = instance_settings.offset
+        per_page = instance_settings.api_offset
         offset = (page - 1) * per_page
 
         query =

priv/repo/migrations/20250527054942_create_instance_settings.exs

@@ -4,16 +4,42 @@ defmodule Nulla.Repo.Migrations.CreateInstanceSettings do
   def change do
     create table(:instance_settings) do
       add :name, :string, default: "Nulla", null: false
-      add :description, :string, default: "Freedom Social Network", null: false
+      add :description, :text, default: "Freedom Social Network", null: false
       add :domain, :string, default: "localhost", null: false
       add :registration, :boolean, default: false, null: false
       add :max_characters, :integer, default: 5000, null: false
       add :max_upload_size, :integer, default: 50, null: false
-      add :offset, :integer, default: 100, null: false
+      add :api_offset, :integer, default: 100, null: false
-      add :public_key, :string
+      add :public_key, :text
-      add :private_key, :string
+      add :private_key, :text
 
       timestamps()
     end
+
+    flush()
+
+    execute(fn ->
+      {public_key, private_key} = Nulla.KeyGen.generate_keys()
+      now = NaiveDateTime.utc_now() |> NaiveDateTime.truncate(:second)
+      domain =
+      Application.get_env(:nulla, NullaWeb.Endpoint, [])
+      |> Keyword.get(:url, [])
+      |> Keyword.get(:host, "localhost")
+      esc = fn str -> "'#{String.replace(str, "'", "''")}'" end
+      sql = """
+      INSERT INTO instance_settings (
+        name, description, domain, registration,
+        max_characters, max_upload_size, api_offset,
+        public_key, private_key, inserted_at, updated_at
+      ) VALUES (
+        'Nulla', 'Freedom Social Network', '#{domain}', false,
+        5000, 50, 100,
+        #{esc.(public_key)}, #{esc.(private_key)},
+        '#{now}', '#{now}'
+      )
+      """
+
+      Ecto.Adapters.SQL.query!(Nulla.Repo, sql, [])
+    end)
   end
 end

priv/repo/migrations/20250604083506_create_notes.exs

@@ -3,7 +3,7 @@ defmodule Nulla.Repo.Migrations.CreateNotes do
 
   def change do
     create table(:notes) do
-      add :content, :string
+      add :content, :text
       add :visibility, :string, default: "public"
       add :sensitive, :boolean, default: false
       add :language, :string