defmodule Mobilizon.Service.Formatter do alias Mobilizon.Actors.Actor alias Mobilizon.Actors @tag_regex ~r/\#\w+/u def parse_tags(text, data \\ %{}) do Regex.scan(@tag_regex, text) |> Enum.map(fn ["#" <> tag = full_tag] -> {full_tag, String.downcase(tag)} end) |> (fn map -> if data["sensitive"] in [true, "True", "true", "1"], do: [{"#nsfw", "nsfw"}] ++ map, else: map end).() end def parse_mentions(text) do # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address regex = ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u Regex.scan(regex, text) |> List.flatten() |> Enum.uniq() |> Enum.map(fn "@" <> match = full_match -> {full_match, Actors.get_actor_by_name(match)} end) |> Enum.filter(fn {_match, user} -> user end) end # def emojify(text) do # emojify(text, Emoji.get_all()) # end # def emojify(text, nil), do: text # def emojify(text, emoji) do # Enum.reduce(emoji, text, fn {emoji, file}, text -> # emoji = HTML.strip_tags(emoji) # file = HTML.strip_tags(file) # String.replace( # text, # ":#{emoji}:", # "#{emoji}" # ) # |> HTML.filter_tags() # end) # end # def get_emoji(text) when is_binary(text) do # Enum.filter(Emoji.get_all(), fn {emoji, _} -> String.contains?(text, ":#{emoji}:") end) # end # def get_emoji(_), do: [] @link_regex ~r/[0-9a-z+\-\.]+:[0-9a-z$-_.+!*'(),]+/ui @uri_schemes Application.get_env(:pleroma, :uri_schemes, []) @valid_schemes Keyword.get(@uri_schemes, :valid_schemes, []) # # TODO: make it use something other than @link_regex # def html_escape(text, "text/html") do # HTML.filter_tags(text) # end def html_escape(text, "text/plain") do Regex.split(@link_regex, text, include_captures: true) |> Enum.map_every(2, fn chunk -> {:safe, part} = Phoenix.HTML.html_escape(chunk) part end) |> Enum.join("") end @doc "changes scheme:... urls to html links" def add_links({subs, text}) do links = text |> String.split([" ", "\t", "
"]) |> Enum.filter(fn word -> String.starts_with?(word, @valid_schemes) end) |> Enum.filter(fn word -> Regex.match?(@link_regex, word) end) |> Enum.map(fn url -> {Ecto.UUID.generate(), url} end) |> Enum.sort_by(fn {_, url} -> -String.length(url) end) uuid_text = links |> Enum.reduce(text, fn {uuid, url}, acc -> String.replace(acc, url, uuid) end) subs = subs ++ Enum.map(links, fn {uuid, url} -> {uuid, "#{url}"} end) {subs, uuid_text} end @doc "Adds the links to mentioned actors" def add_actor_links({subs, text}, mentions) do mentions = mentions |> Enum.sort_by(fn {name, _} -> -String.length(name) end) |> Enum.map(fn {name, actor} -> {name, actor, Ecto.UUID.generate()} end) uuid_text = mentions |> Enum.reduce(text, fn {match, _actor, uuid}, text -> String.replace(text, match, uuid) end) subs = subs ++ Enum.map(mentions, fn {match, %Actor{id: id, url: url}, uuid} -> short_match = String.split(match, "@") |> tl() |> hd() {uuid, "@#{short_match}"} end) {subs, uuid_text} end @doc "Adds the hashtag links" def add_hashtag_links({subs, text}, tags) do tags = tags |> Enum.sort_by(fn {name, _} -> -String.length(name) end) |> Enum.map(fn {name, short} -> {name, short, Ecto.UUID.generate()} end) uuid_text = tags |> Enum.reduce(text, fn {match, _short, uuid}, text -> String.replace(text, match, uuid) end) subs = subs ++ Enum.map(tags, fn {tag_text, tag, uuid} -> url = "" {uuid, url} end) {subs, uuid_text} end def finalize({subs, text}) do Enum.reduce(subs, text, fn {uuid, replacement}, result_text -> String.replace(result_text, uuid, replacement) end) end end