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Remote controlled frontend framework for Phoenix.
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lib/drab/coder/cipher.ex
defmodule Drab.Coder.Cipher do
@moduledoc false
@spec encode(term) :: Drab.Coder.return()
@doc """
Encrypt any term and encode it to Base64.
iex> {:ok, t} = Drab.Coder.Cipher.encode("test")
iex> t != "test"
true
"""
def encode(term) do
{:ok, Drab.Live.Crypto.encrypt(term)}
end
@spec encode!(term) :: String.t()
@doc """
Encrypt any term and encode it to Base64.
iex> Drab.Coder.Cipher.encode!("test") != "test"
true
"""
def encode!(term) do
Drab.Live.Crypto.encrypt(term)
end
@spec decode(String.t()) :: Drab.Coder.return()
@doc """
Decrypt and base-64 decode string. Returns term.
iex> {:ok, encoded} = Drab.Coder.Cipher.encode([1,2,3])
iex> Drab.Coder.Cipher.decode(encoded)
{:ok, [1,2,3]}
"""
def decode(string) do
case Drab.Live.Crypto.decrypt(string) do
:error -> {:error, "can't decrypt"}
decrypted -> {:ok, decrypted}
end
end
@spec decode!(String.t()) :: term
@doc """
Decrypt and base-64 decode string. Returns term.
iex> encoded = Drab.Coder.Cipher.encode!(%{a: 1})
iex> Drab.Coder.Cipher.decode!(encoded)
%{a: 1}
"""
def decode!(string) do
case Drab.Live.Crypto.decrypt(string) do
:error -> raise "can't decrypt"
decrypted -> decrypted
end
end
end