1 files changed, 60 insertions, 0 deletions
diff --git a/lib/pleroma/reverse_proxy/client/tesla.ex b/lib/pleroma/reverse_proxy/client/tesla.ex
new file mode 100644
index 000000000..fad577ec1
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+++ b/lib/pleroma/reverse_proxy/client/tesla.ex
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-onl
+
+defmodule Pleroma.ReverseProxy.Client.Tesla do
+  @behaviour Pleroma.ReverseProxy.Client
+
+  @adapters [Tesla.Adapter.Gun]
+
+  def request(method, url, headers, body, opts \\ []) do
+    adapter_opts =
+      Keyword.get(opts, :adapter, [])
+      |> Keyword.put(:body_as, :chunks)
+
+    with {:ok, response} <-
+           Pleroma.HTTP.request(
+             method,
+             url,
+             body,
+             headers,
+             Keyword.put(opts, :adapter, adapter_opts)
+           ) do
+      if is_map(response.body),
+        do: {:ok, response.status, response.headers, response.body},
+        else: {:ok, response.status, response.headers}
+    else
+      {:error, error} -> {:error, error}
+    end
+  end
+
+  def stream_body(%{fin: true}), do: :done
+
+  def stream_body(client) do
+    case read_chunk!(client) do
+      {:fin, body} -> {:ok, body, Map.put(client, :fin, true)}
+      {:nofin, part} -> {:ok, part, client}
+      {:error, error} -> {:error, error}
+    end
+  end
+
+  defp read_chunk!(%{pid: pid, stream: stream, opts: opts}) do
+    adapter = Application.get_env(:tesla, :adapter)
+
+    unless adapter in @adapters do
+      raise "#{adapter} doesn't support reading body in chunks"
+    end
+
+    adapter.read_chunk(pid, stream, opts)
+  end
+
+  def close(pid) do
+    adapter = Application.get_env(:tesla, :adapter)
+
+    unless adapter in @adapters do
+      raise "#{adapter} doesn't support closing connection"
+    end
+
+    adapter.close(pid)
+  end
+end