Merge branch 'develop' into gun

[akkoma] / lib / pleroma / http / http.ex

diff --git a/lib/pleroma/http/http.ex b/lib/pleroma/http/http.ex
index c19bccf607872d98886c1489924b7a421e897c40..7b7c79b649532ef78413d5d51b40a34e172e80dd 100644 (file)
--- a/lib/pleroma/http/http.ex
+++ b/lib/pleroma/http/http.ex
@@ -1,36 +1,132 @@
+# 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
-  require HTTPoison
+  @moduledoc """
+    Wrapper for `Tesla.request/2`.
+  """
 
-  def request(method, url, body \\ "", headers \\ [], options \\ []) do
-    options =
-      process_request_options(options)
-      |> process_sni_options(url)
+  alias Pleroma.HTTP.Connection
+  alias Pleroma.HTTP.Request
+  alias Pleroma.HTTP.RequestBuilder, as: Builder
+  alias Tesla.Client
+  alias Tesla.Env
 
-    HTTPoison.request(method, url, body, headers, options)
-  end
+  require Logger
+
+  @type t :: __MODULE__
+
+  @doc """
+  Performs GET request.
 
-  defp process_sni_options(options, url) do
+  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)
-    host = uri.host |> to_charlist()
+    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)
 
-    case uri.scheme do
-      "https" -> options ++ [ssl: [server_name_indication: host]]
-      _ -> options
-    end
+    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
 
-  def process_request_options(options) do
-    config = Application.get_env(:pleroma, :http, [])
-    proxy = Keyword.get(config, :proxy_url, nil)
+  @spec request(Client.t(), keyword(), map()) :: {:ok, Env.t()} | {:error, any()}
+  def request(%Client{} = client, request, %{env: :test}), do: request_try(client, request)
 
-    case proxy do
-      nil -> options
-      _ -> options ++ [proxy: proxy]
-    end
+  def request(%Client{} = client, request, %{body_as: :chunks}) do
+    request_try(client, request)
   end
 
-  def get(url, headers \\ [], options \\ []), do: request(:get, url, "", headers, options)
+  def request(%Client{} = client, request, %{pool_alive?: false}) do
+    request_try(client, request)
+  end
 
-  def post(url, body, headers \\ [], options \\ []),
-    do: request(:post, url, body, headers, options)
+  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_try(Client.t(), keyword()) :: {:ok, Env.t()} | {:error, any()}
+  def request_try(client, request) do
+    try do
+      Tesla.request(client, request)
+    rescue
+      e ->
+        {:error, e}
+    catch
+      :exit, e ->
+        {:error, e}
+    end
+  end
+
+  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