Pleroma/lib/pleroma/web/common_api/utils.ex

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# 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
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alias Calendar.Strftime
alias Comeonin.Pbkdf2
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alias Pleroma.Activity
alias Pleroma.Config
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alias Pleroma.Formatter
alias Pleroma.Object
alias Pleroma.Repo
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alias Pleroma.User
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.Endpoint
alias Pleroma.Web.MediaProxy
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require Logger
# This is a hack for twidere.
def get_by_id_or_ap_id(id) do
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activity =
Activity.get_by_id_with_object(id) || Activity.get_create_by_object_ap_id_with_object(id)
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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
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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])
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end)
end
def to_for_user_and_mentions(user, mentions, inReplyTo, "public") do
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mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)
to = ["https://www.w3.org/ns/activitystreams#Public" | mentioned_users]
cc = [user.follower_address]
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if inReplyTo do
{Enum.uniq([inReplyTo.data["actor"] | to]), cc}
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else
{to, cc}
end
end
def to_for_user_and_mentions(user, mentions, inReplyTo, "unlisted") do
mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)
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 to_for_user_and_mentions(user, mentions, inReplyTo, "private") do
{to, cc} = to_for_user_and_mentions(user, mentions, inReplyTo, "direct")
{[user.follower_address | to], cc}
end
def to_for_user_and_mentions(_user, mentions, inReplyTo, "direct") do
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mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)
if inReplyTo do
{Enum.uniq([inReplyTo.data["actor"] | mentioned_users]), []}
else
{mentioned_users, []}
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end
end
def make_content_html(
status,
attachments,
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data,
visibility
) do
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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"])
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options =
if visibility == "direct" && Config.get([:instance, :safe_dm_mentions]) do
[safe_mention: true]
else
[]
end
status
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|> format_input(content_type, options)
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|> maybe_add_attachments(attachments, no_attachment_links)
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|> 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
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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
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def make_context(_), do: Utils.generate_context_id()
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def maybe_add_attachments(parsed, _attachments, true = _no_links), do: parsed
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def maybe_add_attachments({text, mentions, tags}, attachments, _no_links) do
text = add_attachments(text, attachments)
{text, mentions, tags}
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end
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def add_attachments(text, attachments) do
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attachment_text =
Enum.map(attachments, fn
%{"url" => [%{"href" => href} | _]} = attachment ->
name = attachment["name"] || URI.decode(Path.basename(href))
href = MediaProxy.url(href)
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"<a href=\"#{href}\" class='attachment'>#{shortname(name)}</a>"
_ ->
""
end)
Enum.join([text | attachment_text], "<br>")
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end
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def format_input(text, format, options \\ [])
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@doc """
Formatting text to plain text.
"""
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def format_input(text, "text/plain", options) do
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text
|> Formatter.html_escape("text/plain")
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|> Formatter.linkify(options)
|> (fn {text, mentions, tags} ->
{String.replace(text, ~r/\r?\n/, "<br>"), mentions, tags}
end).()
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end
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@doc """
Formatting text to html.
"""
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def format_input(text, "text/html", options) do
text
|> Formatter.html_escape("text/html")
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|> Formatter.linkify(options)
end
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@doc """
Formatting text to markdown.
"""
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def format_input(text, "text/markdown", options) do
options = Keyword.put(options, :mentions_escape, true)
text
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|> Formatter.linkify(options)
|> (fn {text, mentions, tags} -> {Earmark.as_html!(text), mentions, tags} end).()
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|> Formatter.html_escape("text/html")
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end
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def make_note_data(
actor,
to,
context,
content_html,
attachments,
inReplyTo,
tags,
cw \\ nil,
cc \\ []
) do
object = %{
"type" => "Note",
"to" => to,
"cc" => cc,
"content" => content_html,
"summary" => cw,
"context" => context,
"attachment" => attachments,
"actor" => actor,
"tag" => tags |> Enum.map(fn {_, tag} -> tag end) |> Enum.uniq()
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}
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if inReplyTo do
object
|> Map.put("inReplyTo", inReplyTo.data["object"]["id"])
|> Map.put("inReplyToStatusId", inReplyTo.id)
else
object
end
end
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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
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def date_to_asctime(date) when is_binary(date) do
with {:ok, date, _offset} <- DateTime.from_iso8601(date) do
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format_asctime(date)
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else
_e ->
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Logger.warn("Date #{date} in wrong format, must be ISO 8601")
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""
end
end
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def date_to_asctime(date) do
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Logger.warn("Date #{date} in wrong format, must be ISO 8601")
""
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end
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def to_masto_date(%NaiveDateTime{} = date) do
date
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|> NaiveDateTime.to_iso8601()
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|> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
end
def to_masto_date(date) do
try do
date
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|> NaiveDateTime.from_iso8601!()
|> NaiveDateTime.to_iso8601()
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|> String.replace(~r/(\.\d+)?$/, ".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
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def confirm_current_password(user, password) do
with %User{local: true} = db_user <- User.get_by_id(user.id),
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true <- Pbkdf2.checkpw(password, db_user.password_hash) do
{:ok, db_user}
else
_ -> {:error, "Invalid password."}
end
end
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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",
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"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_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: []
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def make_report_content_html(nil), do: {:ok, {nil, [], []}}
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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
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{:ok, format_input(comment, "text/plain")}
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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
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end