forked from AkkomaGang/akkoma
51 lines
1.7 KiB
Elixir
51 lines
1.7 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright _ 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.RichMedia.Helpers do
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alias Pleroma.Activity
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alias Pleroma.HTML
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alias Pleroma.Object
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alias Pleroma.Web.RichMedia.Parser
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@private_ip_regexp ~r/(127\.)|(10\.\d+\.\d+.\d+)|(192\.168\.)
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|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(localhost)/
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defp validate_page_url(page_url) when is_binary(page_url) do
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validate_tld = Application.get_env(:auto_linker, :opts)[:validate_tld]
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cond do
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Regex.match?(@private_ip_regexp, page_url) ->
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:error
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AutoLinker.Parser.url?(page_url, scheme: true, validate_tld: validate_tld) ->
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URI.parse(page_url) |> validate_page_url
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true ->
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:error
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end
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end
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defp validate_page_url(%URI{authority: nil}), do: :error
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defp validate_page_url(%URI{scheme: nil}), do: :error
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defp validate_page_url(%URI{}), do: :ok
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defp validate_page_url(_), do: :error
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def fetch_data_for_activity(%Activity{data: %{"type" => "Create"}} = activity) do
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with true <- Pleroma.Config.get([:rich_media, :enabled]),
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%Object{} = object <- Object.normalize(activity),
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false <- object.data["sensitive"] || false,
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{:ok, page_url} <- HTML.extract_first_external_url(object, object.data["content"]),
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:ok <- validate_page_url(page_url),
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{:ok, rich_media} <- Parser.parse(page_url) do
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%{page_url: page_url, rich_media: rich_media}
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else
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_ -> %{}
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end
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end
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def fetch_data_for_activity(_), do: %{}
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def perform(:fetch, %Activity{} = activity), do: fetch_data_for_activity(activity)
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end
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