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87 lines
2.2 KiB
Elixir
87 lines
2.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.ReverseProxy.Client.Tesla do
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@behaviour Pleroma.ReverseProxy.Client
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alias Pleroma.Gun.ConnectionPool
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@type headers() :: [{String.t(), String.t()}]
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@type status() :: pos_integer()
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@spec request(atom(), String.t(), headers(), String.t(), keyword()) ::
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{:ok, status(), headers}
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| {:ok, status(), headers, map()}
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| {:error, atom() | String.t()}
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| no_return()
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@impl true
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def request(method, url, headers, body, opts \\ []) do
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check_adapter()
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opts = Keyword.put(opts, :body_as, :chunks)
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with {:ok, response} <-
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Pleroma.HTTP.request(
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method,
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url,
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body,
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headers,
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Keyword.put(opts, :adapter, opts)
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) do
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if is_map(response.body) and method != :head do
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{:ok, response.status, response.headers, response.body}
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else
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conn_pid = response.opts[:adapter][:conn]
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ConnectionPool.release_conn(conn_pid)
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{:ok, response.status, response.headers}
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end
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else
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{:error, error} -> {:error, error}
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end
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end
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@impl true
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@spec stream_body(map()) ::
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{: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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ConnectionPool.release_conn(pid)
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:done
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end
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def stream_body(client) do
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case read_chunk!(client) do
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{:fin, body} ->
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{:ok, body, Map.put(client, :fin, true)}
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{:nofin, part} ->
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{:ok, part, client}
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{:error, error} ->
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{:error, error}
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end
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end
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defp read_chunk!(%{pid: pid, stream: stream, opts: opts}) do
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adapter = check_adapter()
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adapter.read_chunk(pid, stream, opts)
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end
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@impl true
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@spec close(map) :: :ok | no_return()
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def close(%{pid: pid}) do
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ConnectionPool.release_conn(pid)
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end
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defp check_adapter do
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adapter = Application.get_env(:tesla, :adapter)
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unless adapter == Tesla.Adapter.Gun do
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raise "#{adapter} doesn't support reading body in chunks"
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end
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adapter
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end
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end
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