AutoLinker
This commit is contained in:
Egor
kaniini
parent
e9703a5326
commit
c3ac9424d2
10 changed files with 211 additions and 290 deletions
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@ -8,33 +8,51 @@ defmodule Pleroma.Formatter do
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alias Pleroma.User
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alias Pleroma.Web.MediaProxy
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@tag_regex ~r/((?<=[^&])|\A)(\#)(\w+)/u
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@markdown_characters_regex ~r/(`|\*|_|{|}|[|]|\(|\)|#|\+|-|\.|!)/
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@link_regex ~r{((?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~%:/?#[\]@!\$&'\(\)\*\+,;=.]+)|[0-9a-z+\-\.]+:[0-9a-z$-_.+!*'(),]+}ui
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# Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
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@mentions_regex ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
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@auto_linker_config hashtag: true,
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hashtag_handler: &Pleroma.Formatter.hashtag_handler/4,
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mention: true,
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mention_handler: &Pleroma.Formatter.mention_handler/4
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def parse_tags(text, data \\ %{}) do
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Regex.scan(@tag_regex, text)
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|> Enum.map(fn ["#" <> tag = full_tag | _] -> {full_tag, String.downcase(tag)} end)
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|> (fn map ->
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if data["sensitive"] in [true, "True", "true", "1"],
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do: [{"#nsfw", "nsfw"}] ++ map,
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else: map
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end).()
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def mention_handler("@" <> nickname, buffer, opts, acc) do
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case User.get_cached_by_nickname(nickname) do
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%User{id: id} = user ->
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ap_id = get_ap_id(user)
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nickname_text = get_nickname_text(nickname, opts) |> maybe_escape(opts)
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link =
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"<span class='h-card'><a data-user='#{id}' class='u-url mention' href='#{ap_id}'>@<span>#{
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nickname_text
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}</span></a></span>"
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{link, %{acc | mentions: MapSet.put(acc.mentions, {"@" <> nickname, user})}}
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_ ->
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{buffer, acc}
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end
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end
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@doc "Parses mentions text and returns list {nickname, user}."
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@spec parse_mentions(binary()) :: list({binary(), User.t()})
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def parse_mentions(text) do
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Regex.scan(@mentions_regex, text)
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|> List.flatten()
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|> Enum.uniq()
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|> Enum.map(fn nickname ->
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with nickname <- String.trim_leading(nickname, "@"),
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do: {"@" <> nickname, User.get_cached_by_nickname(nickname)}
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end)
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|> Enum.filter(fn {_match, user} -> user end)
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def hashtag_handler("#" <> tag = tag_text, _buffer, _opts, acc) do
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tag = String.downcase(tag)
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url = "#{Pleroma.Web.base_url()}/tag/#{tag}"
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link = "<a class='hashtag' data-tag='#{tag}' href='#{url}' rel='tag'>#{tag_text}</a>"
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{link, %{acc | tags: MapSet.put(acc.tags, {tag_text, tag})}}
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end
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@doc """
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Parses a text and replace plain text links with HTML. Returns a tuple with a result text, mentions, and hashtags.
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"""
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@spec linkify(String.t(), keyword()) ::
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{String.t(), [{String.t(), User.t()}], [{String.t(), String.t()}]}
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def linkify(text, options \\ []) do
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options = options ++ @auto_linker_config
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acc = %{mentions: MapSet.new(), tags: MapSet.new()}
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{text, %{mentions: mentions, tags: tags}} = AutoLinker.link_map(text, acc, options)
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{text, MapSet.to_list(mentions), MapSet.to_list(tags)}
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end
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def emojify(text) do
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@ -48,9 +66,7 @@ defmodule Pleroma.Formatter do
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emoji = HTML.strip_tags(emoji)
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file = HTML.strip_tags(file)
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String.replace(
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text,
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":#{emoji}:",
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html =
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if not strip do
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"<img height='32px' width='32px' alt='#{emoji}' title='#{emoji}' src='#{
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MediaProxy.url(file)
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@ -58,8 +74,8 @@ defmodule Pleroma.Formatter do
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else
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""
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end
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)
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|> HTML.filter_tags()
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String.replace(text, ":#{emoji}:", html) |> HTML.filter_tags()
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end)
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end
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@ -75,12 +91,6 @@ defmodule Pleroma.Formatter do
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def get_emoji(_), do: []
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@link_regex ~r/[0-9a-z+\-\.]+:[0-9a-z$-_.+!*'(),]+/ui
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@uri_schemes Application.get_env(:pleroma, :uri_schemes, [])
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@valid_schemes Keyword.get(@uri_schemes, :valid_schemes, [])
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# TODO: make it use something other than @link_regex
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def html_escape(text, "text/html") do
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HTML.filter_tags(text)
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end
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@ -94,112 +104,6 @@ defmodule Pleroma.Formatter do
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|> Enum.join("")
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end
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@doc """
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Escapes a special characters in mention names.
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"""
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@spec mentions_escape(String.t(), list({String.t(), any()})) :: String.t()
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def mentions_escape(text, mentions) do
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mentions
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|> Enum.reduce(text, fn {name, _}, acc ->
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escape_name = String.replace(name, @markdown_characters_regex, "\\\\\\1")
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String.replace(acc, name, escape_name)
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end)
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end
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@doc "changes scheme:... urls to html links"
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def add_links({subs, text}) do
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links =
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text
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|> String.split([" ", "\t", "<br>"])
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|> Enum.filter(fn word -> String.starts_with?(word, @valid_schemes) end)
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|> Enum.filter(fn word -> Regex.match?(@link_regex, word) end)
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|> Enum.map(fn url -> {Ecto.UUID.generate(), url} end)
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|> Enum.sort_by(fn {_, url} -> -String.length(url) end)
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uuid_text =
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links
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|> Enum.reduce(text, fn {uuid, url}, acc -> String.replace(acc, url, uuid) end)
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subs =
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subs ++
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Enum.map(links, fn {uuid, url} ->
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{uuid, "<a href=\"#{url}\">#{url}</a>"}
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end)
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{subs, uuid_text}
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end
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@doc "Adds the links to mentioned users"
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def add_user_links({subs, text}, mentions, options \\ []) do
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mentions =
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mentions
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|> Enum.sort_by(fn {name, _} -> -String.length(name) end)
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|> Enum.map(fn {name, user} -> {name, user, Ecto.UUID.generate()} end)
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uuid_text =
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mentions
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|> Enum.reduce(text, fn {match, _user, uuid}, text ->
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String.replace(text, match, uuid)
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end)
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subs =
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subs ++
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Enum.map(mentions, fn {match, %User{id: id, ap_id: ap_id, info: info}, uuid} ->
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ap_id =
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if is_binary(info.source_data["url"]) do
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info.source_data["url"]
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else
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ap_id
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end
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nickname =
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if options[:format] == :full do
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User.full_nickname(match)
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else
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User.local_nickname(match)
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end
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{uuid,
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"<span class='h-card'><a data-user='#{id}' class='u-url mention' href='#{ap_id}'>" <>
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"@<span>#{nickname}</span></a></span>"}
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end)
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{subs, uuid_text}
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end
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@doc "Adds the hashtag links"
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def add_hashtag_links({subs, text}, tags) do
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tags =
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tags
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|> Enum.sort_by(fn {name, _} -> -String.length(name) end)
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|> Enum.map(fn {name, short} -> {name, short, Ecto.UUID.generate()} end)
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uuid_text =
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tags
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|> Enum.reduce(text, fn {match, _short, uuid}, text ->
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String.replace(text, ~r/((?<=[^&])|(\A))#{match}/, uuid)
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end)
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subs =
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subs ++
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Enum.map(tags, fn {tag_text, tag, uuid} ->
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url =
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"<a class='hashtag' data-tag='#{tag}' href='#{Pleroma.Web.base_url()}/tag/#{tag}' rel='tag'>#{
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tag_text
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}</a>"
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{uuid, url}
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end)
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{subs, uuid_text}
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end
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def finalize({subs, text}) do
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Enum.reduce(subs, text, fn {uuid, replacement}, result_text ->
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String.replace(result_text, uuid, replacement)
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end)
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end
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def truncate(text, max_length \\ 200, omission \\ "...") do
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# Remove trailing whitespace
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text = Regex.replace(~r/([^ \t\r\n])([ \t]+$)/u, text, "\\g{1}")
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@ -211,4 +115,16 @@ defmodule Pleroma.Formatter do
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String.slice(text, 0, length_with_omission) <> omission
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end
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end
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defp get_ap_id(%User{info: %{source_data: %{"url" => url}}}) when is_binary(url), do: url
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defp get_ap_id(%User{ap_id: ap_id}), do: ap_id
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defp get_nickname_text(nickname, %{mentions_format: :full}), do: User.full_nickname(nickname)
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defp get_nickname_text(nickname, _), do: User.local_nickname(nickname)
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defp maybe_escape(str, %{mentions_escape: true}) do
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String.replace(str, @markdown_characters_regex, "\\\\\\1")
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end
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defp maybe_escape(str, _), do: str
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end
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@ -1193,9 +1193,6 @@ defmodule Pleroma.User do
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def parse_bio(bio, _user) when bio == "", do: bio
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def parse_bio(bio, user) do
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mentions = Formatter.parse_mentions(bio)
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tags = Formatter.parse_tags(bio)
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emoji =
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(user.info.source_data["tag"] || [])
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|> Enum.filter(fn %{"type" => t} -> t == "Emoji" end)
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@ -1204,7 +1201,8 @@ defmodule Pleroma.User do
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end)
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bio
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|> CommonUtils.format_input(mentions, tags, "text/plain", user_links: [format: :full])
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|> CommonUtils.format_input("text/plain", mentions_format: :full)
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|> elem(0)
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|> Formatter.emojify(emoji)
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end
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@ -82,40 +82,20 @@ defmodule Pleroma.Web.CommonAPI do
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def get_visibility(_), do: "public"
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defp get_content_type(content_type) do
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if Enum.member?(Pleroma.Config.get([:instance, :allowed_post_formats]), content_type) do
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content_type
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else
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"text/plain"
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end
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end
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def post(user, %{"status" => status} = data) do
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visibility = get_visibility(data)
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limit = Pleroma.Config.get([:instance, :limit])
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with status <- String.trim(status),
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attachments <- attachments_from_ids(data),
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mentions <- Formatter.parse_mentions(status),
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inReplyTo <- get_replied_to_activity(data["in_reply_to_status_id"]),
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{to, cc} <- to_for_user_and_mentions(user, mentions, inReplyTo, visibility),
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tags <- Formatter.parse_tags(status, data),
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content_html <-
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{content_html, mentions, tags} <-
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make_content_html(
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status,
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mentions,
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attachments,
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tags,
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get_content_type(data["content_type"]),
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Enum.member?(
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[true, "true"],
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Map.get(
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data,
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"no_attachment_links",
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Pleroma.Config.get([:instance, :no_attachment_links], false)
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)
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)
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data
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),
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{to, cc} <- to_for_user_and_mentions(user, mentions, inReplyTo, visibility),
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context <- make_context(inReplyTo),
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cw <- data["spoiler_text"],
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full_payload <- String.trim(status <> (data["spoiler_text"] || "")),
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@ -247,7 +227,7 @@ defmodule Pleroma.Web.CommonAPI do
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def report(user, data) do
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with {:account_id, %{"account_id" => account_id}} <- {:account_id, data},
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{:account, %User{} = account} <- {:account, User.get_by_id(account_id)},
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{:ok, content_html} <- make_report_content_html(data["comment"]),
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{:ok, {content_html, _, _}} <- make_report_content_html(data["comment"]),
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{:ok, statuses} <- get_report_statuses(account, data),
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{:ok, activity} <-
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ActivityPub.flag(%{
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@ -10,7 +10,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
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alias Pleroma.Object
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alias Pleroma.Repo
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alias Pleroma.User
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alias Pleroma.Web
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alias Pleroma.Config
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alias Pleroma.Web.Endpoint
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alias Pleroma.Web.MediaProxy
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alias Pleroma.Web.ActivityPub.Utils
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@ -100,24 +100,45 @@ defmodule Pleroma.Web.CommonAPI.Utils do
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def make_content_html(
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status,
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mentions,
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attachments,
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tags,
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content_type,
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no_attachment_links \\ false
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data
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) do
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no_attachment_links =
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data
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|> Map.get("no_attachment_links", Config.get([:instance, :no_attachment_links]))
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|> Kernel.in([true, "true"])
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content_type = get_content_type(data["content_type"])
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status
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|> format_input(mentions, tags, content_type)
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|> format_input(content_type)
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|> maybe_add_attachments(attachments, no_attachment_links)
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|> maybe_add_nsfw_tag(data)
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end
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defp get_content_type(content_type) do
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if Enum.member?(Config.get([:instance, :allowed_post_formats]), content_type) do
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content_type
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else
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"text/plain"
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end
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end
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defp maybe_add_nsfw_tag({text, mentions, tags}, %{"sensitive" => sensitive})
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when sensitive in [true, "True", "true", "1"] do
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{text, mentions, [{"#nsfw", "nsfw"} | tags]}
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end
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defp maybe_add_nsfw_tag(data, _), do: data
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def make_context(%Activity{data: %{"context" => context}}), do: context
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def make_context(_), do: Utils.generate_context_id()
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def maybe_add_attachments(text, _attachments, true = _no_links), do: text
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def maybe_add_attachments(parsed, _attachments, true = _no_links), do: parsed
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def maybe_add_attachments(text, attachments, _no_links) do
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add_attachments(text, attachments)
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def maybe_add_attachments({text, mentions, tags}, attachments, _no_links) do
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text = add_attachments(text, attachments)
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{text, mentions, tags}
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end
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def add_attachments(text, attachments) do
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@ -135,56 +156,39 @@ defmodule Pleroma.Web.CommonAPI.Utils do
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Enum.join([text | attachment_text], "<br>")
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end
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def format_input(text, mentions, tags, format, options \\ [])
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def format_input(text, format, options \\ [])
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@doc """
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Formatting text to plain text.
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"""
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def format_input(text, mentions, tags, "text/plain", options) do
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def format_input(text, "text/plain", options) do
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text
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|> Formatter.html_escape("text/plain")
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|> String.replace(~r/\r?\n/, "<br>")
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|> (&{[], &1}).()
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|> Formatter.add_links()
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|> Formatter.add_user_links(mentions, options[:user_links] || [])
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|> Formatter.add_hashtag_links(tags)
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|> Formatter.finalize()
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|> Formatter.linkify(options)
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|> (fn {text, mentions, tags} ->
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{String.replace(text, ~r/\r?\n/, "<br>"), mentions, tags}
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end).()
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end
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@doc """
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Formatting text to html.
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"""
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def format_input(text, mentions, _tags, "text/html", options) do
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def format_input(text, "text/html", options) do
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text
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|> Formatter.html_escape("text/html")
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|> (&{[], &1}).()
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|> Formatter.add_user_links(mentions, options[:user_links] || [])
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|> Formatter.finalize()
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|> Formatter.linkify(options)
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end
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@doc """
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Formatting text to markdown.
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"""
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def format_input(text, mentions, tags, "text/markdown", options) do
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def format_input(text, "text/markdown", options) do
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options = Keyword.put(options, :mentions_escape, true)
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text
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|> Formatter.mentions_escape(mentions)
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|> Earmark.as_html!()
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|> Formatter.html_escape("text/html")
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|> (&{[], &1}).()
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|> Formatter.add_user_links(mentions, options[:user_links] || [])
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|> Formatter.add_hashtag_links(tags)
|
||||
|> Formatter.finalize()
|
||||
end
|
||||
|
||||
def add_tag_links(text, tags) do
|
||||
tags =
|
||||
tags
|
||||
|> Enum.sort_by(fn {tag, _} -> -String.length(tag) end)
|
||||
|
||||
Enum.reduce(tags, text, fn {full, tag}, text ->
|
||||
url = "<a href='#{Web.base_url()}/tag/#{tag}' rel='tag'>##{tag}</a>"
|
||||
String.replace(text, full, url)
|
||||
end)
|
||||
|> Formatter.linkify(options)
|
||||
|> (fn {text, mentions, tags} -> {Earmark.as_html!(text), mentions, tags} end).()
|
||||
end
|
||||
|
||||
def make_note_data(
|
||||
|
|
@ -323,13 +327,13 @@ defmodule Pleroma.Web.CommonAPI.Utils do
|
|||
|
||||
def maybe_extract_mentions(_), do: []
|
||||
|
||||
def make_report_content_html(nil), do: {:ok, nil}
|
||||
def make_report_content_html(nil), do: {:ok, {nil, [], []}}
|
||||
|
||||
def make_report_content_html(comment) do
|
||||
max_size = Pleroma.Config.get([:instance, :max_report_comment_size], 1000)
|
||||
|
||||
if String.length(comment) <= max_size do
|
||||
{:ok, format_input(comment, [], [], "text/plain")}
|
||||
{:ok, format_input(comment, "text/plain")}
|
||||
else
|
||||
{:error, "Comment must be up to #{max_size} characters"}
|
||||
end
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue