add basic profanity filter

Author: andyleclair

lib/live_fridge/fridge/word.ex

@@ -13,6 +13,10 @@ defmodule LiveFridge.Fridge.Word do
     change LiveFridge.Changes.SetColor, on: :create
   end
 
+  validations do
+    validate {LiveFridge.Validations.IsProfanity, []}, on: :create
+  end
+
   attributes do
     uuid_v7_primary_key :id
 

lib/live_fridge/validations/is_profanity.ex

@@ -0,0 +1,25 @@
+defmodule LiveFridge.Validations.IsProfanity do
+  use Ash.Resource.Validation
+
+  @impl true
+  def init(opts) do
+    {:ok, opts}
+  end
+
+  @impl true
+  def validate(changeset, _opts, _context) do
+    config = Expletive.configure(blacklist: Expletive.Blacklist.english())
+    word = Ash.Changeset.get_attribute(changeset, :word)
+
+    if Expletive.profane?(word, config) do
+      {:error, field: :word, message: "Nasty language, be nice!"}
+    else
+      :ok
+    end
+  end
+
+  @impl true
+  def atomic(changeset, opts, context) do
+    validate(changeset, opts, context)
+  end
+end

lib/live_fridge_web/live/fridge_live/index.ex

@@ -68,11 +68,11 @@ defmodule LiveFridgeWeb.FridgeLive.Index do
            new_word_form: new_form()
          )}
 
-      {:error, _changeset} ->
+      {:error, changeset} ->
         {:noreply,
          socket
          |> assign(new_word_form: new_form())
-         |> put_flash(:error, "Failed to add word")}
+         |> put_flash(:error, "Failed to add word: #{Enum.map_join(changeset.errors, ", ", &(&1.message))}")}
     end
   end
 

mix.exs

@@ -33,6 +33,7 @@ defmodule LiveFridge.MixProject do
   # Type `mix help deps` for examples and options.
   defp deps do
     [
+      {:expletive, "~> 0.1"},
       {:ash, "~> 3.0"},
       {:igniter, "~> 0.3"},
       {:phoenix, "~> 1.7.14"},

mix.lock

@@ -9,6 +9,7 @@
   "ecto_sql": {:hex, :ecto_sql, "3.12.1", "c0d0d60e85d9ff4631f12bafa454bc392ce8b9ec83531a412c12a0d415a3a4d0", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.12", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.7", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.19 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "aff5b958a899762c5f09028c847569f7dfb9cc9d63bdb8133bff8a5546de6bf5"},
   "esbuild": {:hex, :esbuild, "0.8.2", "5f379dfa383ef482b738e7771daf238b2d1cfb0222bef9d3b20d4c8f06c7a7ac", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "558a8a08ed78eb820efbfda1de196569d8bfa9b51e8371a1934fbb31345feda7"},
   "ets": {:hex, :ets, "0.9.0", "79c6a6c205436780486f72d84230c6cba2f8a9920456750ddd1e47389107d5fd", [:mix], [], "hexpm", "2861fdfb04bcaeff370f1a5904eec864f0a56dcfebe5921ea9aadf2a481c822b"},
+  "expletive": {:hex, :expletive, "0.1.5", "9e29db97aa83309b169870a1c08554a214561a04dc3cc38476141f3c62bd27b7", [:mix], [], "hexpm", "f07359b0b4b8cc39001a688d080373aa05d10ad294f0701b96d9169831ac22fd"},
   "expo": {:hex, :expo, "1.1.0", "f7b9ed7fb5745ebe1eeedf3d6f29226c5dd52897ac67c0f8af62a07e661e5c75", [:mix], [], "hexpm", "fbadf93f4700fb44c331362177bdca9eeb8097e8b0ef525c9cc501cb9917c960"},
   "file_system": {:hex, :file_system, "1.0.1", "79e8ceaddb0416f8b8cd02a0127bdbababe7bf4a23d2a395b983c1f8b3f73edd", [:mix], [], "hexpm", "4414d1f38863ddf9120720cd976fce5bdde8e91d8283353f0e31850fa89feb9e"},
   "finch": {:hex, :finch, "0.19.0", "c644641491ea854fc5c1bbaef36bfc764e3f08e7185e1f084e35e0672241b76d", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.6.2 or ~> 1.7", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 1.1", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "fc5324ce209125d1e2fa0fcd2634601c52a787aff1cd33ee833664a5af4ea2b6"},