Add unsupported message for DSA keys, player and such

config/config.exs

@@ -1,11 +1,5 @@
 import Config
 
-config :chessh, Chessh.Repo,
-  database: "chessh",
-  username: "postgres",
-  password: "postgres",
-  hostname: "localhost"
-
 config :chessh, ecto_repos: [Chessh.Repo]
 
 config :esshd,

config/dev.exs

@@ -1 +1,7 @@
 import Config
+
+config :chessh, Chessh.Repo,
+  database: "chessh",
+  username: "postgres",
+  password: "postgres",
+  hostname: "localhost"

config/test.exs

@@ -4,6 +4,5 @@ config :chessh, Chessh.Repo,
   database: "chessh-test",
   username: "postgres",
   password: "postgres",
-  hostname: "localhost"
-
-config :chessh, ecto_repos: [Chessh.Repo]
+  hostname: "localhost",
+  pool: Ecto.Adapters.SQL.Sandbox

lib/chessh/schema/key.ex

@@ -0,0 +1,46 @@
+defmodule Chessh.Key do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "keys" do
+    field(:key, :string)
+    field(:name, :string)
+
+    belongs_to(:player, Chessh.Player)
+
+    timestamps()
+  end
+
+  def changeset(key, attrs) do
+    key
+    |> cast(update_encode_key(attrs, :key), [:key])
+    |> cast(attrs, [:name])
+    |> validate_required([:key, :name])
+    |> validate_format(:key, ~r/[\-\w\d]+ [^ ]+$/, message: "invalid ssh key")
+    |> validate_format(:key, ~r/^(?!ssh-dss).+/, message: "DSA keys are not supported")
+  end
+
+  defp update_encode_key(attrs, field) do
+    if Map.has_key?(attrs, field) do
+      Map.update!(attrs, field, &encode_key/1)
+    else
+      attrs
+    end
+  end
+
+  def encode_key(key) do
+    if is_tuple(key) do
+      case key do
+        {pub, [opts]} -> [{pub, [opts]}]
+        key -> [{key, [comment: '']}]
+      end
+      |> :ssh_file.encode(:openssh_key)
+    else
+      key
+    end
+    # Remove comment at end of key
+    |> String.replace(~r/ [^ ]+\@[^ ]+$/, "")
+    # Remove potential spaces / newline
+    |> String.trim()
+  end
+end

lib/chessh/schema/player.ex

@@ -9,6 +9,8 @@ defmodule Chessh.Player do
     field(:password, :string, virtual: true)
     field(:hashed_password, :string)
 
+    has_many(:keys, Chessh.Key)
+
     timestamps()
   end
 
@@ -52,7 +54,6 @@ defmodule Chessh.Player do
       message: "only letters, numbers, underscores, and hyphens allowed"
     )
     |> unique_constraint(:username)
-    |> lowercase(:username)
   end
 
   defp validate_password(changeset, opts) do
@@ -74,8 +75,4 @@ defmodule Chessh.Player do
       changeset
     end
   end
-
-  defp lowercase(changeset, field) do
-    Map.update!(changeset, field, &String.downcase/1)
-  end
 end

mix.exs

@@ -7,7 +7,9 @@ defmodule Chessh.MixProject do
       version: "0.1.0",
       elixir: "~> 1.14",
       start_permanent: Mix.env() == :prod,
-      deps: deps()
+      deps: deps(),
+      elixirc_paths: elixirc_paths(Mix.env()),
+      aliases: aliases()
     ]
   end
 
@@ -19,6 +21,9 @@ defmodule Chessh.MixProject do
     ]
   end
 
+  defp elixirc_paths(:test), do: ["lib", "test/support"]
+  defp elixirc_paths(_), do: ["lib"]
+
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
@@ -30,4 +35,10 @@ defmodule Chessh.MixProject do
       {:bcrypt_elixir, "~> 3.0"}
     ]
   end
+
+  defp aliases do
+    [
+      test: ["ecto.create --quiet", "ecto.migrate", "test"]
+    ]
+  end
 end

test/chessh_test.exs

@@ -1,4 +0,0 @@
-defmodule ChesshTest do
-  use ExUnit.Case
-  doctest Chessh
-end

test/schema/key_test.exs

@@ -0,0 +1,41 @@
+defmodule Chessh.Schema.KeyTest do
+  use Chessh.RepoCase
+  use ExUnit.Case
+  alias Chessh.Key
+
+  @valid_attrs %{
+    name: "Logan's Key",
+    key:
+      {{{:ECPoint,
+         <<159, 246, 44, 226, 70, 24, 71, 127, 118, 17, 96, 71, 18, 121, 48, 203, 244, 140, 156,
+           56, 179, 138, 64, 242, 169, 140, 109, 156, 174, 148, 222, 56>>},
+        {:namedCurve, {1, 3, 101, 112}}}, [comment: 'logan@yagami']}
+  }
+  @valid_key_attrs %{
+    name: "asdf key",
+    key:
+      "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBC7Mpf2QIL32MmKxcrXAoZM3l7/hBy+8d+WqTRMun+tC/XYNiXSIDuZv01an3D1d22fmSpZiprFQzjB4yEz23qw= logan@yagami"
+  }
+  @invalid_key_attrs %{
+    name: "An Invalid Key",
+    key: "AAAAC3NzaC1lZDI1NTE5AAAAIJ/2LOJGGEd/dhFgRxJ5MMv0jJw4s4pA8qmMbZyulN44"
+  }
+  @dsa_key_attrs %{
+    name: "A DSA Key",
+    key:
+      "ssh-dss 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"
+  }
+  @empty_attrs %{}
+
+  test "changeset with valid attributes" do
+    IO.puts(inspect(Key.changeset(%Key{}, @valid_attrs)))
+    assert Key.changeset(%Key{}, @valid_attrs).valid?
+    assert Key.changeset(%Key{}, @valid_key_attrs).valid?
+  end
+
+  test "changeset with invalid attributes" do
+    refute Key.changeset(%Key{}, @empty_attrs).valid?
+    refute Key.changeset(%Key{}, @invalid_key_attrs).valid?
+    refute Key.changeset(%Key{}, @dsa_key_attrs).valid?
+  end
+end

test/support/repo_case.ex

@@ -0,0 +1,25 @@
+defmodule Chessh.RepoCase do
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      alias Chessh.Repo
+
+      import Ecto
+      import Ecto.Query
+      import Chessh.RepoCase
+
+      # and any other stuff
+    end
+  end
+
+  setup tags do
+    :ok = Ecto.Adapters.SQL.Sandbox.checkout(Chessh.Repo)
+
+    unless tags[:async] do
+      Ecto.Adapters.SQL.Sandbox.mode(Chessh.Repo, {:shared, self()})
+    end
+
+    :ok
+  end
+end

test/test_helper.exs

@@ -1 +1,3 @@
 ExUnit.start()
+
+Ecto.Adapters.SQL.Sandbox.mode(Chessh.Repo, :manual)