Pleroma/lib/pleroma/http/adapter_helper/gun.ex

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# Pleroma: A lightweight social networking server
# 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.HTTP.AdapterHelper.Gun do
@behaviour Pleroma.HTTP.AdapterHelper
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alias Pleroma.Config
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alias Pleroma.HTTP.AdapterHelper
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require Logger
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@defaults [
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connect_timeout: 5_000,
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domain_lookup_timeout: 5_000,
tls_handshake_timeout: 5_000,
retry: 1,
retry_timeout: 1000,
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await_up_timeout: 5_000
]
@type pool() :: :federation | :upload | :media | :default
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@spec options(keyword(), URI.t()) :: keyword()
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def options(incoming_opts \\ [], %URI{} = uri) do
proxy =
[:http, :proxy_url]
|> Config.get()
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|> AdapterHelper.format_proxy()
config_opts = Config.get([:http, :adapter], [])
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@defaults
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|> Keyword.merge(config_opts)
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|> add_scheme_opts(uri)
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|> AdapterHelper.maybe_add_proxy(proxy)
|> Keyword.merge(incoming_opts)
|> put_timeout()
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end
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defp add_scheme_opts(opts, %{scheme: "http"}), do: opts
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defp add_scheme_opts(opts, %{scheme: "https"}) do
Keyword.put(opts, :certificates_verification, true)
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end
defp put_timeout(opts) do
# this is the timeout to receive a message from Gun
Keyword.put_new(opts, :timeout, pool_timeout(opts[:pool]))
end
@spec pool_timeout(pool()) :: non_neg_integer()
def pool_timeout(pool) do
default = Config.get([:pools, :default, :timeout], 5_000)
Config.get([:pools, pool, :timeout], default)
end
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@prefix Pleroma.Gun.ConnectionPool
def limiter_setup do
wait = Config.get([:connections_pool, :connection_acquisition_wait])
retries = Config.get([:connections_pool, :connection_acquisition_retries])
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:pools
|> Config.get([])
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|> Enum.each(fn {name, opts} ->
max_running = Keyword.get(opts, :size, 50)
max_waiting = Keyword.get(opts, :max_waiting, 10)
result =
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ConcurrentLimiter.new(:"#{@prefix}.#{name}", max_running, max_waiting,
wait: wait,
max_retries: retries
)
case result do
:ok -> :ok
{:error, :existing} -> :ok
end
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end)
:ok
end
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end