55 lines
1.6 KiB
Elixir
55 lines
1.6 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.RelMe do
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@options [
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max_body: 2_000_000,
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receive_timeout: 2_000
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]
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if Pleroma.Config.get(:env) == :test do
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def parse(url) when is_binary(url), do: parse_url(url)
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else
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@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
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def parse(url) when is_binary(url) do
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@cachex.fetch!(:rel_me_cache, url, fn _ ->
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{:commit, parse_url(url)}
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end)
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rescue
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e -> {:error, "Cachex error: #{inspect(e)}"}
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end
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end
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def parse(_), do: {:error, "No URL provided"}
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defp parse_url(url) do
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with {:ok, %Tesla.Env{body: html, status: status}} when status in 200..299 <-
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Pleroma.HTTP.get(url, [], @options),
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{:ok, html_tree} <- Floki.parse_document(html),
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data <-
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Floki.attribute(html_tree, "link[rel~=me]", "href") ++
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Floki.attribute(html_tree, "a[rel~=me]", "href") do
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{:ok, data}
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end
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rescue
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e -> {:error, "Parsing error: #{inspect(e)}"}
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end
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def maybe_put_rel_me("http" <> _ = target_page, profile_urls) when is_list(profile_urls) do
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with {:parse, {:ok, rel_me_hrefs}} <- {:parse, parse(target_page)},
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{:link_match, true} <-
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{:link_match, Enum.any?(rel_me_hrefs, fn x -> x in profile_urls end)} do
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"me"
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else
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e -> {:error, {:could_not_verify, target_page, e}}
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end
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rescue
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e -> {:error, {:could_not_fetch, target_page, e}}
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end
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def maybe_put_rel_me(_, _) do
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{:error, :invalid_url}
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end
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end
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