akkoma/lib/pleroma/formatter.ex
William Pitcock 0ee29994a5 formatter: preserve case of hashtags
when generating hashtag links, we used the casefolded version that we use in
the link URLs, instead of the original version.

accordingly, adjust the formatter to use the original text for the links, while
keeping the casefolded version for the URLs.
2018-08-05 00:37:38 +00:00

260 lines
6.9 KiB
Elixir

defmodule Pleroma.Formatter do
alias Pleroma.User
alias Pleroma.Web.MediaProxy
@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, User.get_cached_by_nickname(match)}
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, nil), do: text
def emojify(text, emoji) do
Enum.reduce(emoji, text, fn {emoji, file}, text ->
emoji = HtmlSanitizeEx.strip_tags(emoji)
file = HtmlSanitizeEx.strip_tags(file)
String.replace(
text,
":#{emoji}:",
"<img height='32px' width='32px' alt='#{emoji}' title='#{emoji}' src='#{
MediaProxy.url(file)
}' />"
)
end)
end
def get_emoji(text) do
Enum.filter(@emoji, fn {emoji, _} -> String.contains?(text, ":#{emoji}:") end)
end
def get_custom_emoji() do
@emoji
end
@link_regex ~r/https?:\/\/[\w\.\/?=\-#\+%&@~'\(\):]+[\w\/]/u
def html_escape(text) 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 http:... links to html links"
def add_links({subs, text}) do
links =
Regex.scan(@link_regex, text)
|> 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} ->
{:safe, link} = Phoenix.HTML.Link.link(url, to: url)
link =
link
|> IO.iodata_to_binary()
{uuid, link}
end)
{subs, uuid_text}
end
@doc "Adds the links to mentioned users"
def add_user_links({subs, text}, mentions) do
mentions =
mentions
|> Enum.sort_by(fn {name, _} -> -String.length(name) end)
|> Enum.map(fn {name, user} -> {name, user, Ecto.UUID.generate()} end)
uuid_text =
mentions
|> Enum.reduce(text, fn {match, _user, uuid}, text ->
String.replace(text, match, uuid)
end)
subs =
subs ++
Enum.map(mentions, fn {match, %User{ap_id: ap_id, info: info}, uuid} ->
ap_id = info["source_data"]["url"] || ap_id
short_match = String.split(match, "@") |> tl() |> hd()
{uuid,
"<span><a class='mention' href='#{ap_id}'>@<span>#{short_match}</span></a></span>"}
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 = "<a href='#{Pleroma.Web.base_url()}/tag/#{tag}' rel='tag'>#{tag_text}</a>"
{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