487 lines
14 KiB
Elixir
487 lines
14 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.MastodonAPI.StatusView do
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use Pleroma.Web, :view
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alias Pleroma.Activity
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alias Pleroma.HTML
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alias Pleroma.Object
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alias Pleroma.Repo
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alias Pleroma.User
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alias Pleroma.Web.CommonAPI
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alias Pleroma.Web.CommonAPI.Utils
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alias Pleroma.Web.MastodonAPI.AccountView
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alias Pleroma.Web.MastodonAPI.StatusView
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alias Pleroma.Web.MediaProxy
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import Pleroma.Web.ActivityPub.Visibility, only: [get_visibility: 1]
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# TODO: Add cached version.
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defp get_replied_to_activities(activities) do
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activities
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|> Enum.map(fn
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%{data: %{"type" => "Create", "object" => object}} ->
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object = Object.normalize(object)
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object.data["inReplyTo"] != "" && object.data["inReplyTo"]
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_ ->
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nil
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end)
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|> Enum.filter(& &1)
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|> Activity.create_by_object_ap_id()
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|> Repo.all()
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|> Enum.reduce(%{}, fn activity, acc ->
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object = Object.normalize(activity)
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Map.put(acc, object.data["id"], activity)
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end)
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end
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defp get_user(ap_id) do
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cond do
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user = User.get_cached_by_ap_id(ap_id) ->
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user
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user = User.get_by_guessed_nickname(ap_id) ->
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user
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true ->
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User.error_user(ap_id)
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end
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end
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defp get_context_id(%{data: %{"context_id" => context_id}}) when not is_nil(context_id),
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do: context_id
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defp get_context_id(%{data: %{"context" => context}}) when is_binary(context),
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do: Utils.context_to_conversation_id(context)
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defp get_context_id(_), do: nil
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defp reblogged?(activity, user) do
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object = Object.normalize(activity) || %{}
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present?(user && user.ap_id in (object.data["announcements"] || []))
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end
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def render("index.json", opts) do
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replied_to_activities = get_replied_to_activities(opts.activities)
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opts.activities
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|> safe_render_many(
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StatusView,
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"status.json",
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Map.put(opts, :replied_to_activities, replied_to_activities)
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)
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end
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def render(
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"status.json",
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%{activity: %{data: %{"type" => "Announce", "object" => _object}} = activity} = opts
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) do
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user = get_user(activity.data["actor"])
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created_at = Utils.to_masto_date(activity.data["published"])
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activity_object = Object.normalize(activity)
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reblogged_activity =
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Activity.create_by_object_ap_id(activity_object.data["id"])
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|> Activity.with_preloaded_bookmark(opts[:for])
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|> Repo.one()
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reblogged = render("status.json", Map.put(opts, :activity, reblogged_activity))
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favorited = opts[:for] && opts[:for].ap_id in (activity_object.data["likes"] || [])
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bookmarked = Activity.get_bookmark(reblogged_activity, opts[:for]) != nil
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mentions =
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activity.recipients
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|> Enum.map(fn ap_id -> User.get_cached_by_ap_id(ap_id) end)
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|> Enum.filter(& &1)
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|> Enum.map(fn user -> AccountView.render("mention.json", %{user: user}) end)
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%{
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id: to_string(activity.id),
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uri: activity_object.data["id"],
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url: activity_object.data["id"],
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account: AccountView.render("account.json", %{user: user}),
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in_reply_to_id: nil,
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in_reply_to_account_id: nil,
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reblog: reblogged,
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content: reblogged[:content] || "",
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created_at: created_at,
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reblogs_count: 0,
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replies_count: 0,
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favourites_count: 0,
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reblogged: reblogged?(reblogged_activity, opts[:for]),
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favourited: present?(favorited),
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bookmarked: present?(bookmarked),
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muted: false,
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pinned: pinned?(activity, user),
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sensitive: false,
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spoiler_text: "",
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visibility: "public",
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media_attachments: reblogged[:media_attachments] || [],
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mentions: mentions,
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tags: reblogged[:tags] || [],
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application: %{
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name: "Web",
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website: nil
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},
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language: nil,
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emojis: [],
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pleroma: %{
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local: activity.local
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}
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}
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end
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def render("status.json", %{activity: %{data: %{"object" => _object}} = activity} = opts) do
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object = Object.normalize(activity)
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user = get_user(activity.data["actor"])
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like_count = object.data["like_count"] || 0
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announcement_count = object.data["announcement_count"] || 0
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tags = object.data["tag"] || []
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sensitive = object.data["sensitive"] || Enum.member?(tags, "nsfw")
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mentions =
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activity.recipients
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|> Enum.map(fn ap_id -> User.get_cached_by_ap_id(ap_id) end)
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|> Enum.filter(& &1)
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|> Enum.map(fn user -> AccountView.render("mention.json", %{user: user}) end)
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favorited = opts[:for] && opts[:for].ap_id in (object.data["likes"] || [])
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bookmarked = Activity.get_bookmark(activity, opts[:for]) != nil
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thread_muted? =
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case activity.thread_muted? do
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thread_muted? when is_boolean(thread_muted?) -> thread_muted?
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nil -> CommonAPI.thread_muted?(user, activity)
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end
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attachment_data = object.data["attachment"] || []
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attachments = render_many(attachment_data, StatusView, "attachment.json", as: :attachment)
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created_at = Utils.to_masto_date(object.data["published"])
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reply_to = get_reply_to(activity, opts)
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reply_to_user = reply_to && get_user(reply_to.data["actor"])
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content =
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object
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|> render_content()
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content_html =
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content
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|> HTML.get_cached_scrubbed_html_for_activity(
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User.html_filter_policy(opts[:for]),
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activity,
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"mastoapi:content"
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)
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content_plaintext =
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content
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|> HTML.get_cached_stripped_html_for_activity(
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activity,
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"mastoapi:content"
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)
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summary = object.data["summary"] || ""
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summary_html =
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summary
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|> HTML.get_cached_scrubbed_html_for_activity(
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User.html_filter_policy(opts[:for]),
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activity,
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"mastoapi:summary"
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)
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summary_plaintext =
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summary
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|> HTML.get_cached_stripped_html_for_activity(
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activity,
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"mastoapi:summary"
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)
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card = render("card.json", Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity))
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url =
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if user.local do
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Pleroma.Web.Router.Helpers.o_status_url(Pleroma.Web.Endpoint, :notice, activity)
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else
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object.data["external_url"] || object.data["id"]
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end
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%{
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id: to_string(activity.id),
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uri: object.data["id"],
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url: url,
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account: AccountView.render("account.json", %{user: user}),
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in_reply_to_id: reply_to && to_string(reply_to.id),
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in_reply_to_account_id: reply_to_user && to_string(reply_to_user.id),
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reblog: nil,
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card: card,
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content: content_html,
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created_at: created_at,
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reblogs_count: announcement_count,
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replies_count: object.data["repliesCount"] || 0,
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favourites_count: like_count,
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reblogged: reblogged?(activity, opts[:for]),
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favourited: present?(favorited),
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bookmarked: present?(bookmarked),
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muted: thread_muted? || User.mutes?(opts[:for], user),
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pinned: pinned?(activity, user),
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sensitive: sensitive,
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spoiler_text: summary_html,
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visibility: get_visibility(object),
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media_attachments: attachments,
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poll: render("poll.json", %{object: object, for: opts[:for]}),
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mentions: mentions,
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tags: build_tags(tags),
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application: %{
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name: "Web",
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website: nil
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},
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language: nil,
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emojis: build_emojis(object.data["emoji"]),
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pleroma: %{
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local: activity.local,
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conversation_id: get_context_id(activity),
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in_reply_to_account_acct: reply_to_user && reply_to_user.nickname,
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content: %{"text/plain" => content_plaintext},
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spoiler_text: %{"text/plain" => summary_plaintext}
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}
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}
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end
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def render("status.json", _) do
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nil
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end
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def render("card.json", %{rich_media: rich_media, page_url: page_url}) do
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page_url_data = URI.parse(page_url)
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page_url_data =
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if rich_media[:url] != nil do
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URI.merge(page_url_data, URI.parse(rich_media[:url]))
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else
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page_url_data
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end
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page_url = page_url_data |> to_string
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image_url =
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if rich_media[:image] != nil do
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URI.merge(page_url_data, URI.parse(rich_media[:image]))
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|> to_string
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else
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nil
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end
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site_name = rich_media[:site_name] || page_url_data.host
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%{
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type: "link",
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provider_name: site_name,
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provider_url: page_url_data.scheme <> "://" <> page_url_data.host,
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url: page_url,
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image: image_url |> MediaProxy.url(),
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title: rich_media[:title] || "",
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description: rich_media[:description] || "",
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pleroma: %{
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opengraph: rich_media
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}
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}
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end
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def render("card.json", _) do
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nil
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end
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def render("attachment.json", %{attachment: attachment}) do
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[attachment_url | _] = attachment["url"]
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media_type = attachment_url["mediaType"] || attachment_url["mimeType"] || "image"
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href = attachment_url["href"] |> MediaProxy.url()
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type =
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cond do
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String.contains?(media_type, "image") -> "image"
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String.contains?(media_type, "video") -> "video"
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String.contains?(media_type, "audio") -> "audio"
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true -> "unknown"
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end
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<<hash_id::signed-32, _rest::binary>> = :crypto.hash(:md5, href)
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%{
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id: to_string(attachment["id"] || hash_id),
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url: href,
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remote_url: href,
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preview_url: href,
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text_url: href,
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type: type,
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description: attachment["name"],
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pleroma: %{mime_type: media_type}
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}
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end
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def render("poll.json", %{object: object} = opts) do
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{multiple, options} =
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case object.data do
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%{"anyOf" => options} when is_list(options) -> {true, options}
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%{"oneOf" => options} when is_list(options) -> {false, options}
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_ -> {nil, nil}
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end
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if options do
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end_time =
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(object.data["closed"] || object.data["endTime"])
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|> NaiveDateTime.from_iso8601!()
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expired =
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end_time
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|> NaiveDateTime.compare(NaiveDateTime.utc_now())
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|> case do
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:lt -> true
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_ -> false
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end
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voted =
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if opts[:for] do
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existing_votes =
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Pleroma.Web.ActivityPub.Utils.get_existing_votes(opts[:for].ap_id, object)
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existing_votes != [] or opts[:for].ap_id == object.data["actor"]
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else
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false
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end
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{options, votes_count} =
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Enum.map_reduce(options, 0, fn %{"name" => name} = option, count ->
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current_count = option["replies"]["totalItems"] || 0
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{%{
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title: HTML.strip_tags(name),
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votes_count: current_count
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}, current_count + count}
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end)
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%{
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# Mastodon uses separate ids for polls, but an object can't have
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# more than one poll embedded so object id is fine
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id: object.id,
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expires_at: Utils.to_masto_date(end_time),
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expired: expired,
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multiple: multiple,
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votes_count: votes_count,
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options: options,
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voted: voted,
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emojis: build_emojis(object.data["emoji"])
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}
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else
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nil
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end
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end
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def get_reply_to(activity, %{replied_to_activities: replied_to_activities}) do
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object = Object.normalize(activity)
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with nil <- replied_to_activities[object.data["inReplyTo"]] do
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# If user didn't participate in the thread
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Activity.get_in_reply_to_activity(activity)
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end
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end
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def get_reply_to(%{data: %{"object" => _object}} = activity, _) do
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object = Object.normalize(activity)
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if object.data["inReplyTo"] && object.data["inReplyTo"] != "" do
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Activity.get_create_by_object_ap_id(object.data["inReplyTo"])
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else
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nil
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end
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end
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def render_content(%{data: %{"type" => "Video"}} = object) do
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with name when not is_nil(name) and name != "" <- object.data["name"] do
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"<p><a href=\"#{object.data["id"]}\">#{name}</a></p>#{object.data["content"]}"
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else
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_ -> object.data["content"] || ""
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end
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end
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def render_content(%{data: %{"type" => object_type}} = object)
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when object_type in ["Article", "Page"] do
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with summary when not is_nil(summary) and summary != "" <- object.data["name"],
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url when is_bitstring(url) <- object.data["url"] do
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"<p><a href=\"#{url}\">#{summary}</a></p>#{object.data["content"]}"
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else
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_ -> object.data["content"] || ""
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end
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end
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def render_content(object), do: object.data["content"] || ""
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@doc """
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Builds a dictionary tags.
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## Examples
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iex> Pleroma.Web.MastodonAPI.StatusView.build_tags(["fediverse", "nextcloud"])
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[{"name": "fediverse", "url": "/tag/fediverse"},
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{"name": "nextcloud", "url": "/tag/nextcloud"}]
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"""
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@spec build_tags(list(any())) :: list(map())
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def build_tags(object_tags) when is_list(object_tags) do
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object_tags = for tag when is_binary(tag) <- object_tags, do: tag
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Enum.reduce(object_tags, [], fn tag, tags ->
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tags ++ [%{name: tag, url: "/tag/#{tag}"}]
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end)
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end
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def build_tags(_), do: []
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@doc """
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Builds list emojis.
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Arguments: `nil` or list tuple of name and url.
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Returns list emojis.
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## Examples
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iex> Pleroma.Web.MastodonAPI.StatusView.build_emojis([{"2hu", "corndog.png"}])
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[%{shortcode: "2hu", static_url: "corndog.png", url: "corndog.png", visible_in_picker: false}]
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"""
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@spec build_emojis(nil | list(tuple())) :: list(map())
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def build_emojis(nil), do: []
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def build_emojis(emojis) do
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emojis
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|> Enum.map(fn {name, url} ->
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name = HTML.strip_tags(name)
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url =
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url
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|> HTML.strip_tags()
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|> MediaProxy.url()
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%{shortcode: name, url: url, static_url: url, visible_in_picker: false}
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end)
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end
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defp present?(nil), do: false
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defp present?(false), do: false
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defp present?(_), do: true
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defp pinned?(%Activity{id: id}, %User{info: %{pinned_activities: pinned_activities}}),
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do: id in pinned_activities
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end
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