# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Formatter do
- alias Pleroma.Emoji
alias Pleroma.HTML
alias Pleroma.User
- alias Pleroma.Web.MediaProxy
- @safe_mention_regex ~r/^(\s*(?<mentions>@.+?\s+)+)(?<rest>.*)/
+ @safe_mention_regex ~r/^(\s*(?<mentions>(@.+?\s+){1,})+)(?<rest>.*)/s
+ @link_regex ~r"((?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~%:/?#[\]@!\$&'\(\)\*\+,;=.]+)|[0-9a-z+\-\.]+:[0-9a-z$-_.+!*'(),]+"ui
@markdown_characters_regex ~r/(`|\*|_|{|}|[|]|\(|\)|#|\+|-|\.|!)/
- @link_regex ~r{((?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~%:/?#[\]@!\$&'\(\)\*\+,;=.]+)|[0-9a-z+\-\.]+:[0-9a-z$-_.+!*'(),]+}ui
- # credo:disable-for-previous-line Credo.Check.Readability.MaxLineLength
- @auto_linker_config hashtag: true,
- hashtag_handler: &Pleroma.Formatter.hashtag_handler/4,
- mention: true,
- mention_handler: &Pleroma.Formatter.mention_handler/4
+ defp linkify_opts do
+ Pleroma.Config.get(Pleroma.Formatter) ++
+ [
+ hashtag: true,
+ hashtag_handler: &Pleroma.Formatter.hashtag_handler/4,
+ mention: true,
+ mention_handler: &Pleroma.Formatter.mention_handler/4
+ ]
+ end
+
+ def escape_mention_handler("@" <> nickname = mention, buffer, _, _) do
+ case User.get_cached_by_nickname(nickname) do
+ %User{} ->
+ # escape markdown characters with `\\`
+ # (we don't want something like @user__name to be parsed by markdown)
+ String.replace(mention, @markdown_characters_regex, "\\\\\\1")
+
+ _ ->
+ buffer
+ end
+ end
def mention_handler("@" <> nickname, buffer, opts, acc) do
case User.get_cached_by_nickname(nickname) do
%User{id: id} = user ->
- ap_id = get_ap_id(user)
- nickname_text = get_nickname_text(nickname, opts) |> maybe_escape(opts)
+ user_url = user.uri || user.ap_id
+ nickname_text = get_nickname_text(nickname, opts)
link =
- "<span class='h-card'><a data-user='#{id}' class='u-url mention' href='#{ap_id}'>@<span>#{
- nickname_text
- }</span></a></span>"
+ Phoenix.HTML.Tag.content_tag(
+ :span,
+ Phoenix.HTML.Tag.content_tag(
+ :a,
+ ["@", Phoenix.HTML.Tag.content_tag(:span, nickname_text)],
+ "data-user": id,
+ class: "u-url mention",
+ href: user_url,
+ rel: "ugc"
+ ),
+ class: "h-card"
+ )
+ |> Phoenix.HTML.safe_to_string()
{link, %{acc | mentions: MapSet.put(acc.mentions, {"@" <> nickname, user})}}
def hashtag_handler("#" <> tag = tag_text, _buffer, _opts, acc) do
tag = String.downcase(tag)
url = "#{Pleroma.Web.base_url()}/tag/#{tag}"
- link = "<a class='hashtag' data-tag='#{tag}' href='#{url}' rel='tag'>#{tag_text}</a>"
+
+ link =
+ Phoenix.HTML.Tag.content_tag(:a, tag_text,
+ class: "hashtag",
+ "data-tag": tag,
+ href: url,
+ rel: "tag ugc"
+ )
+ |> Phoenix.HTML.safe_to_string()
{link, %{acc | tags: MapSet.put(acc.tags, {tag_text, tag})}}
end
@spec linkify(String.t(), keyword()) ::
{String.t(), [{String.t(), User.t()}], [{String.t(), String.t()}]}
def linkify(text, options \\ []) do
- options = options ++ @auto_linker_config
+ options = linkify_opts() ++ options
if options[:safe_mention] && Regex.named_captures(@safe_mention_regex, text) do
%{"mentions" => mentions, "rest" => rest} = Regex.named_captures(@safe_mention_regex, text)
acc = %{mentions: MapSet.new(), tags: MapSet.new()}
- {text_mentions, %{mentions: mentions}} = AutoLinker.link_map(mentions, acc, options)
- {text_rest, %{tags: tags}} = AutoLinker.link_map(rest, acc, options)
+ {text_mentions, %{mentions: mentions}} = Linkify.link_map(mentions, acc, options)
+ {text_rest, %{tags: tags}} = Linkify.link_map(rest, acc, options)
{text_mentions <> text_rest, MapSet.to_list(mentions), MapSet.to_list(tags)}
else
acc = %{mentions: MapSet.new(), tags: MapSet.new()}
- {text, %{mentions: mentions, tags: tags}} = AutoLinker.link_map(text, acc, options)
+ {text, %{mentions: mentions, tags: tags}} = Linkify.link_map(text, acc, options)
{text, MapSet.to_list(mentions), MapSet.to_list(tags)}
end
end
- def emojify(text) do
- emojify(text, Emoji.get_all())
- end
-
- def emojify(text, nil), do: text
-
- def emojify(text, emoji, strip \\ false) do
- Enum.reduce(emoji, text, fn emoji_data, text ->
- emoji = HTML.strip_tags(elem(emoji_data, 0))
- file = HTML.strip_tags(elem(emoji_data, 1))
-
- html =
- if not strip do
- "<img height='32px' width='32px' alt='#{emoji}' title='#{emoji}' src='#{
- MediaProxy.url(file)
- }' />"
- else
- ""
- end
-
- String.replace(text, ":#{emoji}:", html) |> HTML.filter_tags()
- end)
- end
-
- def demojify(text) do
- emojify(text, Emoji.get_all(), true)
- end
-
- def demojify(text, nil), do: text
+ @doc """
+ Escapes a special characters in mention names.
+ """
+ def mentions_escape(text, options \\ []) do
+ options =
+ Keyword.merge(options,
+ mention: true,
+ url: false,
+ mention_handler: &Pleroma.Formatter.escape_mention_handler/4
+ )
- def get_emoji(text) when is_binary(text) do
- Enum.filter(Emoji.get_all(), fn {emoji, _, _} -> String.contains?(text, ":#{emoji}:") end)
+ if options[:safe_mention] && Regex.named_captures(@safe_mention_regex, text) do
+ %{"mentions" => mentions, "rest" => rest} = Regex.named_captures(@safe_mention_regex, text)
+ Linkify.link(mentions, options) <> Linkify.link(rest, options)
+ else
+ Linkify.link(text, options)
+ end
end
- def get_emoji(_), do: []
-
def html_escape({text, mentions, hashtags}, type) do
{html_escape(text, type), mentions, hashtags}
end
end
end
- defp get_ap_id(%User{info: %{source_data: %{"url" => url}}}) when is_binary(url), do: url
- defp get_ap_id(%User{ap_id: ap_id}), do: ap_id
-
defp get_nickname_text(nickname, %{mentions_format: :full}), do: User.full_nickname(nickname)
defp get_nickname_text(nickname, _), do: User.local_nickname(nickname)
-
- defp maybe_escape(str, %{mentions_escape: true}) do
- String.replace(str, @markdown_characters_regex, "\\\\\\1")
- end
-
- defp maybe_escape(str, _), do: str
end
projects / akkoma / blobdiff