+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.HTTP do
- use HTTPoison.Base
-
- def process_request_options(options) do
- config = Application.get_env(:pleroma, :http, [])
- proxy = Keyword.get(config, :proxy_url, nil)
- case proxy do
- nil -> options
- _ -> options ++ [proxy: proxy]
- end
+ @moduledoc """
+ Wrapper for `Tesla.request/2`.
+ """
+
+ alias Pleroma.HTTP.Connection
+ alias Pleroma.HTTP.Request
+ alias Pleroma.HTTP.RequestBuilder, as: Builder
+ alias Tesla.Client
+ alias Tesla.Env
+
+ require Logger
+
+ @type t :: __MODULE__
+
+ @doc """
+ Performs GET request.
+
+ See `Pleroma.HTTP.request/5`
+ """
+ @spec get(Request.url() | nil, Request.headers(), keyword()) ::
+ nil | {:ok, Env.t()} | {:error, any()}
+ def get(url, headers \\ [], options \\ [])
+ def get(nil, _, _), do: nil
+ def get(url, headers, options), do: request(:get, url, "", headers, options)
+
+ @doc """
+ Performs POST request.
+
+ See `Pleroma.HTTP.request/5`
+ """
+ @spec post(Request.url(), String.t(), Request.headers(), keyword()) ::
+ {:ok, Env.t()} | {:error, any()}
+ def post(url, body, headers \\ [], options \\ []),
+ do: request(:post, url, body, headers, options)
+
+ @doc """
+ Builds and performs http request.
+
+ # Arguments:
+ `method` - :get, :post, :put, :delete
+ `url` - full url
+ `body` - request body
+ `headers` - a keyworld list of headers, e.g. `[{"content-type", "text/plain"}]`
+ `options` - custom, per-request middleware or adapter options
+
+ # Returns:
+ `{:ok, %Tesla.Env{}}` or `{:error, error}`
+
+ """
+ @spec request(atom(), Request.url(), String.t(), Request.headers(), keyword()) ::
+ {:ok, Env.t()} | {:error, any()}
+ def request(method, url, body, headers, options) when is_binary(url) do
+ uri = URI.parse(url)
+ received_adapter_opts = Keyword.get(options, :adapter, [])
+ adapter_opts = Connection.options(uri, received_adapter_opts)
+ options = put_in(options[:adapter], adapter_opts)
+ params = Keyword.get(options, :params, [])
+ request = build_request(method, headers, options, url, body, params)
+
+ adapter = Application.get_env(:tesla, :adapter)
+ client = Tesla.client([Tesla.Middleware.FollowRedirects], adapter)
+
+ pid = Process.whereis(adapter_opts[:pool])
+
+ pool_alive? =
+ if adapter == Tesla.Adapter.Gun && pid do
+ Process.alive?(pid)
+ else
+ false
+ end
+
+ request_opts =
+ adapter_opts
+ |> Enum.into(%{})
+ |> Map.put(:env, Pleroma.Config.get([:env]))
+ |> Map.put(:pool_alive?, pool_alive?)
+
+ response = request(client, request, request_opts)
+
+ Connection.after_request(adapter_opts)
+
+ response
+ end
+
+ @spec request(Client.t(), keyword(), map()) :: {:ok, Env.t()} | {:error, any()}
+ def request(%Client{} = client, request, %{env: :test}), do: request(client, request)
+
+ def request(%Client{} = client, request, %{body_as: :chunks}), do: request(client, request)
+
+ def request(%Client{} = client, request, %{pool_alive?: false}), do: request(client, request)
+
+ def request(%Client{} = client, request, %{pool: pool, timeout: timeout}) do
+ :poolboy.transaction(
+ pool,
+ &Pleroma.Pool.Request.execute(&1, client, request, timeout),
+ timeout
+ )
end
+ @spec request(Client.t(), keyword()) :: {:ok, Env.t()} | {:error, any()}
+ def request(client, request), do: Tesla.request(client, request)
+
+ defp build_request(method, headers, options, url, body, params) do
+ Builder.new()
+ |> Builder.method(method)
+ |> Builder.headers(headers)
+ |> Builder.opts(options)
+ |> Builder.url(url)
+ |> Builder.add_param(:body, :body, body)
+ |> Builder.add_param(:query, :query, params)
+ |> Builder.convert_to_keyword()
+ end
end