From 2a83c0ba935355b4ada582315de68b456e727af7 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Thu, 7 Mar 2019 23:18:59 +0000
Subject: [PATCH] http: safely catch erlang exits and elixir errors from
 hackney (ref #672)

---
 lib/pleroma/http/http.ex | 41 ++++++++++++++++++++--------------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/lib/pleroma/http/http.ex b/lib/pleroma/http/http.ex
index 26214ef3f..c6d86b3d3 100644
--- a/lib/pleroma/http/http.ex
+++ b/lib/pleroma/http/http.ex
@@ -27,22 +27,29 @@ defmodule Pleroma.HTTP do
 
   """
   def request(method, url, body \\ "", headers \\ [], options \\ []) do
-    options =
-      process_request_options(options)
-      |> process_sni_options(url)
-      |> process_adapter_options()
+    try do
+      options =
+        process_request_options(options)
+        |> process_sni_options(url)
 
-    params = Keyword.get(options, :params, [])
+      params = Keyword.get(options, :params, [])
 
-    %{}
-    |> Builder.method(method)
-    |> Builder.headers(headers)
-    |> Builder.opts(options)
-    |> Builder.url(url)
-    |> Builder.add_param(:body, :body, body)
-    |> Builder.add_param(:query, :query, params)
-    |> Enum.into([])
-    |> (&Tesla.request(Connection.new(), &1)).()
+      %{}
+      |> Builder.method(method)
+      |> Builder.headers(headers)
+      |> Builder.opts(options)
+      |> Builder.url(url)
+      |> Builder.add_param(:body, :body, body)
+      |> Builder.add_param(:query, :query, params)
+      |> Enum.into([])
+      |> (&Tesla.request(Connection.new(), &1)).()
+    rescue
+      e ->
+        {:error, e}
+    catch
+      :exit, e ->
+        {:error, e}
+    end
   end
 
   defp process_sni_options(options, nil), do: options
@@ -57,12 +64,6 @@ defmodule Pleroma.HTTP do
     end
   end
 
-  def process_adapter_options(options) do
-    adapter_options = Pleroma.Config.get([:http, :adapter], [])
-
-    options ++ [adapter: adapter_options]
-  end
-
   def process_request_options(options) do
     config = Application.get_env(:pleroma, :http, [])
     proxy = Keyword.get(config, :proxy_url, nil)