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Robust user authentication solution

Security advisory: This version has known vulnerabilities. View advisories
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pow lib pow phoenix html form_template.ex
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lib/pow/phoenix/html/form_template.ex 



defmodule Pow.Phoenix.HTML.FormTemplate do

  @moduledoc """

  Module that can build form templates for Phoenix.

  """

  @template EEx.compile_string """

  <%%= form_for @changeset, @action, fn f -> %>

    <%%= if @changeset.action do %>

      <div class="alert alert-danger">

        <p>Oops, something went wrong! Please check the errors below.</p>

      </div>

    <%% end %>

  <%= for {label, input, error} <- inputs, input do %>

    <%= label %>

    <%= input %>

    <%= error %>

  <% end %>

    <div>

      <%%= submit <%= inspect button_label %> %>

    </div>

  <%% end %>

  """



  @doc """

  Renders a form.



  ## Options



    * `:button_label` - the submit button label, defaults to "Submit"

  """

  @spec render(list(), Keyword.t()) :: Macro.t()

  def render(inputs, opts \\ []) do

    inputs       = for {type, key} <- inputs, do: input(type, key)

    button_label = Keyword.get(opts, :button_label, "Submit")



    unquote(@template)

  end



  @doc false

  @spec input(atom(), atom()) :: {binary(), binary(), binary()}

  defp input(:text, key) do

    {label(key), ~s(<%= text_input f, #{inspect_key(key)} %>), error(key)}

  end

  defp input(:password, key) do

    {label(key), ~s(<%= password_input f, #{inspect_key(key)} %>), error(key)}

  end



  defp label(key) do

    ~s(<%= label f, #{inspect_key(key)} %>)

  end



  defp error(key) do

    ~s(<%= error_tag f, #{inspect_key(key)} %>)

  end



  defp inspect_key({:changeset, :pow_user_id_field}), do: "@changeset.data.__struct__.pow_user_id_field()"

  defp inspect_key(key), do: inspect(key)

end