52 lines
1.5 KiB
Elixir
52 lines
1.5 KiB
Elixir
defmodule BasicSignupAllowlist do
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import FunCore.BasicSignupAllowlist
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@signup_allowlist_emails "SIGNUP_ALLOWLIST_EMAILS"
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@moduledoc """
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Checks if an email address is allowed based on the SIGNUP_ALLOWLIST_EMAILS env variable.
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"""
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@doc """
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Returns the name of the environment variable used for the signup allowlist.
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"""
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@spec signup_allowlist_emails() :: String.t()
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def signup_allowlist_emails, do: @signup_allowlist_emails
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@doc """
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Checks if an email address is allowed based on the SIGNUP_ALLOWLIST_EMAILS env variable.
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Rules:
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- Returns true if ALLOWED_EMAILS == "*" (all emails allowed)
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- Returns true if email matches any entry in the comma-separated list
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- Returns false if:
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* Environment variable doesn't exist
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* Environment variable is empty string
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* Email not found in allowlist
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## Examples
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iex> BasicSignupAllowlist.forbid_signup_with_any_email()
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iex> BasicSignupAllowlist.signup_allowed?("joe@example.com")
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false
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iex> BasicSignupAllowlist.allow_signup_with_all_emails()
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iex> BasicSignupAllowlist.signup_allowed?("joe@example.com")
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true
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"""
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@spec signup_allowed?(String.t()) :: boolean()
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def signup_allowed?(email) do
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env_value = System.get_env(@signup_allowlist_emails)
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signup_allowed_fun(env_value, email)
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end
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def allow_signup_with_all_emails() do
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System.put_env(signup_allowlist_emails(), "*")
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end
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def forbid_signup_with_any_email() do
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System.delete_env(signup_allowlist_emails())
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end
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end
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