akkoma/lib/pleroma/web/common_api/utils.ex
2019-06-05 17:55:00 +07:00

517 lines
14 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.CommonAPI.Utils do
alias Calendar.Strftime
alias Comeonin.Pbkdf2
alias Pleroma.Activity
alias Pleroma.Config
alias Pleroma.Formatter
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.ActivityPub.Visibility
alias Pleroma.Web.Endpoint
alias Pleroma.Web.MediaProxy
require Logger
# This is a hack for twidere.
def get_by_id_or_ap_id(id) do
activity =
Activity.get_by_id_with_object(id) || Activity.get_create_by_object_ap_id_with_object(id)
activity &&
if activity.data["type"] == "Create" do
activity
else
Activity.get_create_by_object_ap_id_with_object(activity.data["object"])
end
end
def get_replied_to_activity(""), do: nil
def get_replied_to_activity(id) when not is_nil(id) do
Activity.get_by_id(id)
end
def get_replied_to_activity(_), do: nil
def attachments_from_ids(data) do
if Map.has_key?(data, "descriptions") do
attachments_from_ids_descs(data["media_ids"], data["descriptions"])
else
attachments_from_ids_no_descs(data["media_ids"])
end
end
def attachments_from_ids_no_descs(ids) do
Enum.map(ids || [], fn media_id ->
Repo.get(Object, media_id).data
end)
end
def attachments_from_ids_descs(ids, descs_str) do
{_, descs} = Jason.decode(descs_str)
Enum.map(ids || [], fn media_id ->
Map.put(Repo.get(Object, media_id).data, "name", descs[media_id])
end)
end
@spec get_to_and_cc(User.t(), list(String.t()), Activity.t() | nil, String.t()) ::
{list(String.t()), list(String.t())}
def get_to_and_cc(user, mentioned_users, inReplyTo, "public") do
to = ["https://www.w3.org/ns/activitystreams#Public" | mentioned_users]
cc = [user.follower_address]
if inReplyTo do
{Enum.uniq([inReplyTo.data["actor"] | to]), cc}
else
{to, cc}
end
end
def get_to_and_cc(user, mentioned_users, inReplyTo, "unlisted") do
to = [user.follower_address | mentioned_users]
cc = ["https://www.w3.org/ns/activitystreams#Public"]
if inReplyTo do
{Enum.uniq([inReplyTo.data["actor"] | to]), cc}
else
{to, cc}
end
end
def get_to_and_cc(user, mentioned_users, inReplyTo, "private") do
{to, cc} = get_to_and_cc(user, mentioned_users, inReplyTo, "direct")
{[user.follower_address | to], cc}
end
def get_to_and_cc(_user, mentioned_users, inReplyTo, "direct") do
if inReplyTo do
{Enum.uniq([inReplyTo.data["actor"] | mentioned_users]), []}
else
{mentioned_users, []}
end
end
def get_to_and_cc(_user, _mentions, _inReplyTo, _), do: {[], []}
def get_addressed_users(_, to) when is_list(to) do
User.get_ap_ids_by_nicknames(to)
end
def get_addressed_users(mentioned_users, _), do: mentioned_users
def bcc_for_list(user, {:list, list_id}) do
list = Pleroma.List.get(list_id, user)
[list.ap_id]
end
def bcc_for_list(_, _), do: []
def make_poll_data(%{"poll" => %{"options" => options, "expires_in" => expires_in}} = data)
when is_list(options) do
%{max_expiration: max_expiration, min_expiration: min_expiration} =
limits = Pleroma.Config.get([:instance, :poll_limits])
# XXX: There is probably a cleaner way of doing this
try do
# In some cases mastofe sends out strings instead of integers
expires_in = if is_binary(expires_in), do: String.to_integer(expires_in), else: expires_in
if Enum.count(options) > limits.max_options do
raise ArgumentError, message: "Poll can't contain more than #{limits.max_options} options"
end
{poll, emoji} =
Enum.map_reduce(options, %{}, fn option, emoji ->
if String.length(option) > limits.max_option_chars do
raise ArgumentError,
message:
"Poll options cannot be longer than #{limits.max_option_chars} characters each"
end
{%{
"name" => option,
"type" => "Note",
"replies" => %{"type" => "Collection", "totalItems" => 0}
}, Map.merge(emoji, Formatter.get_emoji_map(option))}
end)
case expires_in do
expires_in when expires_in > max_expiration ->
raise ArgumentError, message: "Expiration date is too far in the future"
expires_in when expires_in < min_expiration ->
raise ArgumentError, message: "Expiration date is too soon"
_ ->
:noop
end
end_time =
NaiveDateTime.utc_now()
|> NaiveDateTime.add(expires_in)
|> NaiveDateTime.to_iso8601()
poll =
if Pleroma.Web.ControllerHelper.truthy_param?(data["poll"]["multiple"]) do
%{"type" => "Question", "anyOf" => poll, "closed" => end_time}
else
%{"type" => "Question", "oneOf" => poll, "closed" => end_time}
end
{poll, emoji}
rescue
e in ArgumentError -> e.message
end
end
def make_poll_data(%{"poll" => poll}) when is_map(poll) do
"Invalid poll"
end
def make_poll_data(_data) do
{%{}, %{}}
end
def make_content_html(
status,
attachments,
data,
visibility
) do
no_attachment_links =
data
|> Map.get("no_attachment_links", Config.get([:instance, :no_attachment_links]))
|> Kernel.in([true, "true"])
content_type = get_content_type(data["content_type"])
options =
if visibility == "direct" && Config.get([:instance, :safe_dm_mentions]) do
[safe_mention: true]
else
[]
end
status
|> format_input(content_type, options)
|> maybe_add_attachments(attachments, no_attachment_links)
|> maybe_add_nsfw_tag(data)
end
defp get_content_type(content_type) do
if Enum.member?(Config.get([:instance, :allowed_post_formats]), content_type) do
content_type
else
"text/plain"
end
end
defp maybe_add_nsfw_tag({text, mentions, tags}, %{"sensitive" => sensitive})
when sensitive in [true, "True", "true", "1"] do
{text, mentions, [{"#nsfw", "nsfw"} | tags]}
end
defp maybe_add_nsfw_tag(data, _), do: data
def make_context(%Activity{data: %{"context" => context}}), do: context
def make_context(_), do: Utils.generate_context_id()
def maybe_add_attachments(parsed, _attachments, true = _no_links), do: parsed
def maybe_add_attachments({text, mentions, tags}, attachments, _no_links) do
text = add_attachments(text, attachments)
{text, mentions, tags}
end
def add_attachments(text, attachments) do
attachment_text =
Enum.map(attachments, fn
%{"url" => [%{"href" => href} | _]} = attachment ->
name = attachment["name"] || URI.decode(Path.basename(href))
href = MediaProxy.url(href)
"<a href=\"#{href}\" class='attachment'>#{shortname(name)}</a>"
_ ->
""
end)
Enum.join([text | attachment_text], "<br>")
end
def format_input(text, format, options \\ [])
@doc """
Formatting text to plain text.
"""
def format_input(text, "text/plain", options) do
text
|> Formatter.html_escape("text/plain")
|> Formatter.linkify(options)
|> (fn {text, mentions, tags} ->
{String.replace(text, ~r/\r?\n/, "<br>"), mentions, tags}
end).()
end
@doc """
Formatting text as BBCode.
"""
def format_input(text, "text/bbcode", options) do
text
|> String.replace(~r/\r/, "")
|> Formatter.html_escape("text/plain")
|> BBCode.to_html()
|> (fn {:ok, html} -> html end).()
|> Formatter.linkify(options)
end
@doc """
Formatting text to html.
"""
def format_input(text, "text/html", options) do
text
|> Formatter.html_escape("text/html")
|> Formatter.linkify(options)
end
@doc """
Formatting text to markdown.
"""
def format_input(text, "text/markdown", options) do
text
|> Formatter.mentions_escape(options)
|> Earmark.as_html!()
|> Formatter.linkify(options)
|> Formatter.html_escape("text/html")
end
def make_note_data(
actor,
to,
context,
content_html,
attachments,
in_reply_to,
tags,
cw \\ nil,
cc \\ [],
sensitive \\ false,
merge \\ %{}
) do
object = %{
"type" => "Note",
"to" => to,
"cc" => cc,
"content" => content_html,
"summary" => cw,
"sensitive" => !Enum.member?(["false", "False", "0", false], sensitive),
"context" => context,
"attachment" => attachments,
"actor" => actor,
"tag" => tags |> Enum.map(fn {_, tag} -> tag end) |> Enum.uniq()
}
object =
with false <- is_nil(in_reply_to),
%Object{} = in_reply_to_object <- Object.normalize(in_reply_to) do
Map.put(object, "inReplyTo", in_reply_to_object.data["id"])
else
_ -> object
end
Map.merge(object, merge)
end
def format_naive_asctime(date) do
date |> DateTime.from_naive!("Etc/UTC") |> format_asctime
end
def format_asctime(date) do
Strftime.strftime!(date, "%a %b %d %H:%M:%S %z %Y")
end
def date_to_asctime(date) when is_binary(date) do
with {:ok, date, _offset} <- DateTime.from_iso8601(date) do
format_asctime(date)
else
_e ->
Logger.warn("Date #{date} in wrong format, must be ISO 8601")
""
end
end
def date_to_asctime(date) do
Logger.warn("Date #{date} in wrong format, must be ISO 8601")
""
end
def to_masto_date(%NaiveDateTime{} = date) do
date
|> NaiveDateTime.to_iso8601()
|> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
end
def to_masto_date(date) do
try do
date
|> NaiveDateTime.from_iso8601!()
|> NaiveDateTime.to_iso8601()
|> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
rescue
_e -> ""
end
end
defp shortname(name) do
if String.length(name) < 30 do
name
else
String.slice(name, 0..30) <> ""
end
end
def confirm_current_password(user, password) do
with %User{local: true} = db_user <- User.get_cached_by_id(user.id),
true <- Pbkdf2.checkpw(password, db_user.password_hash) do
{:ok, db_user}
else
_ -> {:error, "Invalid password."}
end
end
def emoji_from_profile(%{info: _info} = user) do
(Formatter.get_emoji(user.bio) ++ Formatter.get_emoji(user.name))
|> Enum.map(fn {shortcode, url, _} ->
%{
"type" => "Emoji",
"icon" => %{"type" => "Image", "url" => "#{Endpoint.url()}#{url}"},
"name" => ":#{shortcode}:"
}
end)
end
def maybe_notify_to_recipients(
recipients,
%Activity{data: %{"to" => to, "type" => _type}} = _activity
) do
recipients ++ to
end
def maybe_notify_mentioned_recipients(
recipients,
%Activity{data: %{"to" => _to, "type" => type} = data} = activity
)
when type == "Create" do
object = Object.normalize(activity)
object_data =
cond do
!is_nil(object) ->
object.data
is_map(data["object"]) ->
data["object"]
true ->
%{}
end
tagged_mentions = maybe_extract_mentions(object_data)
recipients ++ tagged_mentions
end
def maybe_notify_mentioned_recipients(recipients, _), do: recipients
def maybe_notify_subscribers(
recipients,
%Activity{data: %{"actor" => actor, "type" => type}} = activity
)
when type == "Create" do
with %User{} = user <- User.get_cached_by_ap_id(actor) do
subscriber_ids =
user
|> User.subscribers()
|> Enum.filter(&Visibility.visible_for_user?(activity, &1))
|> Enum.map(& &1.ap_id)
recipients ++ subscriber_ids
end
end
def maybe_notify_subscribers(recipients, _), do: recipients
def maybe_extract_mentions(%{"tag" => tag}) do
tag
|> Enum.filter(fn x -> is_map(x) end)
|> Enum.filter(fn x -> x["type"] == "Mention" end)
|> Enum.map(fn x -> x["href"] end)
end
def maybe_extract_mentions(_), do: []
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")}
else
{:error, "Comment must be up to #{max_size} characters"}
end
end
def get_report_statuses(%User{ap_id: actor}, %{"status_ids" => status_ids}) do
{:ok, Activity.all_by_actor_and_id(actor, status_ids)}
end
def get_report_statuses(_, _), do: {:ok, nil}
# DEPRECATED mostly, context objects are now created at insertion time.
def context_to_conversation_id(context) do
with %Object{id: id} <- Object.get_cached_by_ap_id(context) do
id
else
_e ->
changeset = Object.context_mapping(context)
case Repo.insert(changeset) do
{:ok, %{id: id}} ->
id
# This should be solved by an upsert, but it seems ecto
# has problems accessing the constraint inside the jsonb.
{:error, _} ->
Object.get_cached_by_ap_id(context).id
end
end
end
def conversation_id_to_context(id) do
with %Object{data: %{"id" => context}} <- Repo.get(Object, id) do
context
else
_e ->
{:error, "No such conversation"}
end
end
def make_answer_data(%User{ap_id: ap_id}, object, name) do
%{
"type" => "Answer",
"actor" => ap_id,
"cc" => [object.data["actor"]],
"to" => [],
"name" => name,
"inReplyTo" => object.data["id"]
}
end
end