diff options
Diffstat (limited to 'lib/pleroma/formatter.ex')
| -rw-r--r-- | lib/pleroma/formatter.ex | 54 |
1 files changed, 39 insertions, 15 deletions
diff --git a/lib/pleroma/formatter.ex b/lib/pleroma/formatter.ex index 26bb17377..49a9913dc 100644 --- a/lib/pleroma/formatter.ex +++ b/lib/pleroma/formatter.ex @@ -1,13 +1,22 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + defmodule Pleroma.Formatter do alias Pleroma.User alias Pleroma.Web.MediaProxy alias Pleroma.HTML alias Pleroma.Emoji - @tag_regex ~r/\#\w+/u + @tag_regex ~r/((?<=[^&])|\A)(\#)(\w+)/u + @markdown_characters_regex ~r/(`|\*|_|{|}|[|]|\(|\)|#|\+|-|\.|!)/ + + # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address + @mentions_regex ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u + def parse_tags(text, data \\ %{}) do Regex.scan(@tag_regex, text) - |> Enum.map(fn ["#" <> tag = full_tag] -> {full_tag, String.downcase(tag)} end) + |> Enum.map(fn ["#" <> tag = full_tag | _] -> {full_tag, String.downcase(tag)} end) |> (fn map -> if data["sensitive"] in [true, "True", "true", "1"], do: [{"#nsfw", "nsfw"}] ++ map, @@ -15,16 +24,15 @@ defmodule Pleroma.Formatter do end).() end + @doc "Parses mentions text and returns list {nickname, user}." + @spec parse_mentions(binary()) :: list({binary(), User.t()}) def parse_mentions(text) do - # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address - regex = - ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[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) + Regex.scan(@mentions_regex, text) |> List.flatten() |> Enum.uniq() - |> Enum.map(fn "@" <> match = full_match -> - {full_match, User.get_cached_by_nickname(match)} + |> Enum.map(fn nickname -> + with nickname <- String.trim_leading(nickname, "@"), + do: {"@" <> nickname, User.get_cached_by_nickname(nickname)} end) |> Enum.filter(fn {_match, user} -> user end) end @@ -76,6 +84,18 @@ defmodule Pleroma.Formatter do |> Enum.join("") end + @doc """ + Escapes a special characters in mention names. + """ + @spec mentions_escape(String.t(), list({String.t(), any()})) :: String.t() + def mentions_escape(text, mentions) do + mentions + |> Enum.reduce(text, fn {name, _}, acc -> + escape_name = String.replace(name, @markdown_characters_regex, "\\\\\\1") + String.replace(acc, name, escape_name) + end) + end + @doc "changes scheme:... urls to html links" def add_links({subs, text}) do links = @@ -114,10 +134,10 @@ defmodule Pleroma.Formatter do subs = subs ++ - Enum.map(mentions, fn {match, %User{ap_id: ap_id, info: info}, uuid} -> + Enum.map(mentions, fn {match, %User{id: id, ap_id: ap_id, info: info}, uuid} -> ap_id = - if is_binary(info["source_data"]["url"]) do - info["source_data"]["url"] + if is_binary(info.source_data["url"]) do + info.source_data["url"] else ap_id end @@ -125,7 +145,7 @@ defmodule Pleroma.Formatter do short_match = String.split(match, "@") |> tl() |> hd() {uuid, - "<span><a class='mention' href='#{ap_id}'>@<span>#{short_match}</span></a></span>"} + "<span><a data-user='#{id}' class='mention' href='#{ap_id}'>@<span>#{short_match}</span></a></span>"} end) {subs, uuid_text} @@ -141,13 +161,17 @@ defmodule Pleroma.Formatter do uuid_text = tags |> Enum.reduce(text, fn {match, _short, uuid}, text -> - String.replace(text, match, uuid) + String.replace(text, ~r/((?<=[^&])|(\A))#{match}/, uuid) end) subs = subs ++ Enum.map(tags, fn {tag_text, tag, uuid} -> - url = "<a href='#{Pleroma.Web.base_url()}/tag/#{tag}' rel='tag'>#{tag_text}</a>" + url = + "<a data-tag='#{tag}' href='#{Pleroma.Web.base_url()}/tag/#{tag}' rel='tag'>#{ + tag_text + }</a>" + {uuid, url} end) |