+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 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/((?<=[^&])|\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.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
- @tag_regex ~r/\#\w+/u
def parse_tags(text, data \\ %{}) do
Regex.scan(@tag_regex, text)
- |> Enum.map(fn ["#" <> tag = full_tag] -> {full_tag, String.downcase(tag)} end)
+ |> Enum.map(fn ["#" <> tag = full_tag | _] -> {full_tag, String.downcase(tag)} end)
|> (fn map ->
if data["sensitive"] in [true, "True", "true", "1"],
do: [{"#nsfw", "nsfw"}] ++ map,
end).()
end
+ @doc "Parses mentions text and returns list {nickname, user}."
+ @spec parse_mentions(binary()) :: list({binary(), User.t()})
def parse_mentions(text) do
- # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
- regex =
- ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[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
- @finmoji [
- "a_trusted_friend",
- "alandislands",
- "association",
- "auroraborealis",
- "baby_in_a_box",
- "bear",
- "black_gold",
- "christmasparty",
- "crosscountryskiing",
- "cupofcoffee",
- "education",
- "fashionista_finns",
- "finnishlove",
- "flag",
- "forest",
- "four_seasons_of_bbq",
- "girlpower",
- "handshake",
- "happiness",
- "headbanger",
- "icebreaker",
- "iceman",
- "joulutorttu",
- "kaamos",
- "kalsarikannit_f",
- "kalsarikannit_m",
- "karjalanpiirakka",
- "kicksled",
- "kokko",
- "lavatanssit",
- "losthopes_f",
- "losthopes_m",
- "mattinykanen",
- "meanwhileinfinland",
- "moominmamma",
- "nordicfamily",
- "out_of_office",
- "peacemaker",
- "perkele",
- "pesapallo",
- "polarbear",
- "pusa_hispida_saimensis",
- "reindeer",
- "sami",
- "sauna_f",
- "sauna_m",
- "sauna_whisk",
- "sisu",
- "stuck",
- "suomimainittu",
- "superfood",
- "swan",
- "the_cap",
- "the_conductor",
- "the_king",
- "the_voice",
- "theoriginalsanta",
- "tomoffinland",
- "torillatavataan",
- "unbreakable",
- "waiting",
- "white_nights",
- "woollysocks"
- ]
-
- @finmoji_with_filenames Enum.map(@finmoji, fn finmoji ->
- {finmoji, "/finmoji/128px/#{finmoji}-128.png"}
- end)
-
- @emoji_from_file (with {:ok, default} <- File.read("config/emoji.txt") do
- custom =
- with {:ok, custom} <- File.read("config/custom_emoji.txt") do
- custom
- else
- _e -> ""
- end
-
- (default <> "\n" <> custom)
- |> String.trim()
- |> String.split(~r/\n+/)
- |> Enum.map(fn line ->
- [name, file] = String.split(line, ~r/,\s*/)
- {name, file}
- end)
- else
- _ -> []
- end)
-
- @emoji_from_globs (
- static_path = Path.join(:code.priv_dir(:pleroma), "static")
-
- globs =
- Application.get_env(:pleroma, :emoji, [])
- |> Keyword.get(:shortcode_globs, [])
-
- paths =
- Enum.map(globs, fn glob ->
- Path.join(static_path, glob)
- |> Path.wildcard()
- end)
- |> Enum.concat()
-
- Enum.map(paths, fn path ->
- shortcode = Path.basename(path, Path.extname(path))
- external_path = Path.join("/", Path.relative_to(path, static_path))
- {shortcode, external_path}
- end)
- )
-
- @emoji @finmoji_with_filenames ++ @emoji_from_globs ++ @emoji_from_file
-
- def emojify(text, emoji \\ @emoji)
+ def emojify(text) do
+ emojify(text, Emoji.get_all())
+ end
+
def emojify(text, nil), do: text
def emojify(text, emoji) do
end
def get_emoji(text) when is_binary(text) do
- Enum.filter(@emoji, fn {emoji, _} -> String.contains?(text, ":#{emoji}:") end)
+ Enum.filter(Emoji.get_all(), fn {emoji, _} -> String.contains?(text, ":#{emoji}:") end)
end
def get_emoji(_), do: []
- def get_custom_emoji() do
- @emoji
- end
-
@link_regex ~r/[0-9a-z+\-\.]+:[0-9a-z$-_.+!*'(),]+/ui
- # IANA got a list https://www.iana.org/assignments/uri-schemes/ but
- # Stuff like ipfs isn’t in it
- # There is very niche stuff
- @uri_schemes [
- "https://",
- "http://",
- "dat://",
- "dweb://",
- "gopher://",
- "ipfs://",
- "ipns://",
- "irc:",
- "ircs:",
- "magnet:",
- "mailto:",
- "mumble:",
- "ssb://",
- "xmpp:"
- ]
+ @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
- HtmlSanitizeEx.basic_html(text)
+ HTML.filter_tags(text)
end
def html_escape(text, "text/plain") 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
- additionnal_schemes =
- Application.get_env(:pleroma, :uri_schemes, [])
- |> Keyword.get(:additionnal_schemes, [])
-
links =
text
|> String.split([" ", "\t", "<br>"])
- |> Enum.filter(fn word -> String.starts_with?(word, @uri_schemes ++ additionnal_schemes) end)
+ |> 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)
subs =
subs ++
- Enum.map(mentions, fn {match, %User{ap_id: ap_id, info: info}, uuid} ->
- ap_id = info["source_data"]["url"] || ap_id
+ 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"]
+ else
+ ap_id
+ end
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}
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)
String.replace(result_text, uuid, replacement)
end)
end
+
+ def truncate(text, opts \\ []) do
+ max_length = opts[:max_length] || 200
+ omission = opts[:omission] || "..."
+
+ cond do
+ not String.valid?(text) ->
+ text
+
+ String.length(text) < max_length ->
+ text
+
+ true ->
+ length_with_omission = max_length - String.length(omission)
+
+ "#{String.slice(text, 0, length_with_omission)}#{omission}"
+ end
+ end
end
projects / akkoma / blobdiff