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extwitter
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Twitter client library for Elixir.
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lib/extwitter/proxy.ex
defmodule ExTwitter.Proxy do
@moduledoc """
Provide helper functions for proxy setting.
"""
@doc """
Initialize proxy settings based on defintion in config.exs.
"""
def initialize do
if proxy() != nil do
:httpc.set_options(get_proxy_option(proxy()))
end
end
@doc """
Get proxy settings for sending request based on definition in config.exs.
"""
def options do
if proxy() != nil do
get_auth_option(proxy())
else
[]
end
end
def get_proxy_option(proxy) do
if proxy[:server] != nil && proxy[:port] != nil do
server = String.to_charlist(proxy[:server])
port = parse_port(proxy[:port])
[{:proxy, {{server, port}, []}}]
else
[]
end
end
def get_auth_option(proxy) do
if proxy[:user] != nil && proxy[:password] != nil do
user = String.to_charlist(proxy[:user])
password = String.to_charlist(proxy[:password])
[{:proxy_auth, {user, password}}]
else
[]
end
end
defp proxy do
Application.get_env(:extwitter, :proxy, nil)
end
defp parse_port(port) when is_binary(port) do
case Integer.parse(port) do
{integer, _binary} ->
integer
:error ->
raise ExTwitter.Error,
message: "Failed to parse :port for proxy as integer (port: #{port})"
end
end
defp parse_port(port), do: port
end