akkoma/lib/pleroma/reverse_proxy/client/tesla.ex

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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.ReverseProxy.Client.Tesla do
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@behaviour Pleroma.ReverseProxy.Client
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@type headers() :: [{String.t(), String.t()}]
@type status() :: pos_integer()
@spec request(atom(), String.t(), headers(), String.t(), keyword()) ::
{:ok, status(), headers}
| {:ok, status(), headers, map()}
| {:error, atom() | String.t()}
| no_return()
@impl true
def request(method, url, headers, body, opts \\ []) do
check_adapter()
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opts = Keyword.put(opts, :body_as, :chunks)
with {:ok, response} <-
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Pleroma.HTTP.request(
method,
url,
body,
headers,
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opts
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) do
if is_map(response.body) and method != :head do
{:ok, response.status, response.headers, response.body}
else
{:ok, response.status, response.headers}
end
else
{:error, error} -> {:error, error}
end
end
@impl true
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@spec stream_body(map()) ::
{:ok, binary(), map()} | {:error, atom() | String.t()} | :done | no_return()
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def stream_body(%{pid: _pid, fin: true}) do
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:done
end
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 = check_adapter()
adapter.read_chunk(pid, stream, opts)
end
@impl true
@spec close(map) :: :ok | no_return()
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def close(%{pid: _pid}) do
:ok
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end
defp check_adapter do
adapter = Application.get_env(:tesla, :adapter)
adapter
end
end