Floatingghost
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98 lines
2.8 KiB
Elixir
98 lines
2.8 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.RichMedia.Backfill do
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use Pleroma.Workers.WorkerHelper,
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queue: "rich_media_backfill",
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unique: [period: 300, states: Oban.Job.states(), keys: [:op, :url_hash]]
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alias Pleroma.Web.RichMedia.Card
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alias Pleroma.Web.RichMedia.Parser
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alias Pleroma.Web.RichMedia.Parser.TTL
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alias Pleroma.Workers.RichMediaExpirationWorker
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require Logger
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@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
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def start(%{url: url} = args) when is_binary(url) do
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url_hash = Card.url_to_hash(url)
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args =
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args
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|> Map.put(:url_hash, url_hash)
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__MODULE__.enqueue("rich_media_backfill", args)
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end
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def perform(%Oban.Job{args: %{"op" => "rich_media_backfill", "url" => url} = args})
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when is_binary(url) do
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run(args)
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end
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def run(%{"url" => url, "url_hash" => url_hash} = args) do
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case Parser.parse(url) do
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{:ok, fields} ->
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{:ok, card} = Card.create(url, fields)
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maybe_schedule_expiration(url, fields)
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if Map.has_key?(args, "activity_id") do
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stream_update(args)
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end
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warm_cache(url_hash, card)
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:ok
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{:error, {:invalid_metadata, fields}} ->
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Logger.debug("Rich media incomplete or invalid metadata for #{url}: #{inspect(fields)}")
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negative_cache(url_hash, :timer.minutes(30))
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{:error, :body_too_large} ->
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Logger.error("Rich media error for #{url}: :body_too_large")
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negative_cache(url_hash, :timer.minutes(30))
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{:error, {:content_type, type}} ->
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Logger.debug("Rich media error for #{url}: :content_type is #{type}")
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negative_cache(url_hash, :timer.minutes(30))
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e ->
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Logger.debug("Rich media error for #{url}: #{inspect(e)}")
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{:error, e}
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end
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end
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def run(e) do
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Logger.error("Rich media failure - invalid args: #{inspect(e)}")
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{:discard, :invalid}
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end
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defp maybe_schedule_expiration(url, fields) do
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case TTL.process(fields, url) do
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{:ok, ttl} when is_number(ttl) ->
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timestamp = DateTime.from_unix!(ttl)
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RichMediaExpirationWorker.new(%{"url" => url}, scheduled_at: timestamp)
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|> Oban.insert()
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_ ->
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:ok
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end
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end
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defp stream_update(%{"activity_id" => activity_id}) do
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Logger.info("Rich media backfill: streaming update for activity #{activity_id}")
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Pleroma.Activity.get_by_id(activity_id)
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|> Pleroma.Activity.normalize()
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|> Pleroma.Web.ActivityPub.ActivityPub.stream_out()
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end
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defp warm_cache(key, val), do: @cachex.put(:rich_media_cache, key, val)
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def negative_cache(key, ttl \\ :timer.minutes(30)) do
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@cachex.put(:rich_media_cache, key, nil, ttl: ttl)
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{:discard, :error}
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end
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end
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