git.squeep.com Git - akkoma/blob - lib/pleroma/web/ostatus/activity_representer.ex

   1 defmodule Pleroma.Web.OStatus.ActivityRepresenter do
   2   alias Pleroma.{Activity, User, Object}
   3   alias Pleroma.Web.OStatus.UserRepresenter
   4   alias Pleroma.Formatter
   5   require Logger
   6
   7   defp get_href(id) do
   8     with %Object{data: %{ "external_url" => external_url } }<- Object.get_cached_by_ap_id(id) do
   9       external_url
  10     else
  11       _e -> id
  12     end
  13   end
  14
  15   defp get_in_reply_to(%{"object" => %{"inReplyTo" => in_reply_to}}) do
  16     [{:"thr:in-reply-to", [ref: to_charlist(in_reply_to), href: to_charlist(get_href(in_reply_to))], []}]
  17   end
  18
  19   defp get_in_reply_to(_), do: []
  20
  21   defp get_mentions(to) do
  22     Enum.map(to, fn (id) ->
  23       cond do
  24         # Special handling for the AP/Ostatus public collections
  25         "https://www.w3.org/ns/activitystreams#Public" == id ->
  26           {:link, [rel: "mentioned", "ostatus:object-type": "http://activitystrea.ms/schema/1.0/collection", href: "http://activityschema.org/collection/public"], []}
  27         # Ostatus doesn't handle follower collections, ignore these.
  28         Regex.match?(~r/^#{Pleroma.Web.base_url}.+followers$/, id) ->
  29           []
  30         true ->
  31           {:link, [rel: "mentioned", "ostatus:object-type": "http://activitystrea.ms/schema/1.0/person", href: id], []}
  32       end
  33     end)
  34   end
  35
  36   defp get_links(%{local: true, data: data}) do
  37     h = fn(str) -> [to_charlist(str)] end
  38     [
  39       {:link, [type: ['application/atom+xml'], href: h.(data["object"]["id"]), rel: 'self'], []},
  40       {:link, [type: ['text/html'], href: h.(data["object"]["id"]), rel: 'alternate'], []}
  41     ]
  42   end
  43
  44   defp get_links(%{local: false,
  45                    data: %{
  46                      "object" => %{
  47                        "external_url" => external_url
  48                      }
  49                    }}) do
  50
  51     h = fn(str) -> [to_charlist(str)] end
  52     [
  53       {:link, [type: ['text/html'], href: h.(external_url), rel: 'alternate'], []}
  54     ]
  55   end
  56
  57   defp get_links(_activity), do: []
  58
  59   defp get_emoji_links(content) do
  60     Enum.map(Formatter.get_emoji(content), fn({emoji, file}) ->
  61       {:link, [name: to_charlist(emoji), rel: 'emoji', href: to_charlist("#{Pleroma.Web.Endpoint.static_url}#{file}")], []}
  62     end)
  63   end
  64
  65   def to_simple_form(activity, user, with_author \\ false)
  66   def to_simple_form(%{data: %{"object" => %{"type" => "Note"}}} = activity, user, with_author) do
  67     h = fn(str) -> [to_charlist(str)] end
  68
  69     updated_at = activity.data["object"]["published"]
  70     inserted_at = activity.data["object"]["published"]
  71
  72     attachments = Enum.map(activity.data["object"]["attachment"] || [], fn(attachment) ->
  73       url = hd(attachment["url"])
  74       {:link, [rel: 'enclosure', href: to_charlist(url["href"]), type: to_charlist(url["mediaType"])], []}
  75     end)
  76
  77     in_reply_to = get_in_reply_to(activity.data)
  78     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
  79     mentions = activity.data["to"] |> get_mentions
  80
  81     categories = (activity.data["object"]["tag"] || [])
  82     |> Enum.map(fn (tag) -> {:category, [term: to_charlist(tag)], []} end)
  83
  84     emoji_links = get_emoji_links(activity.data["object"]["content"] || "")
  85
  86     [
  87       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
  88       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/post']},
  89       {:id, h.(activity.data["object"]["id"])}, # For notes, federate the object id.
  90       {:title, ['New note by #{user.nickname}']},
  91       {:content, [type: 'html'], h.(activity.data["object"]["content"] |> String.replace(~r/[\n\r]/, ""))},
  92       {:published, h.(inserted_at)},
  93       {:updated, h.(updated_at)},
  94       {:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
  95       {:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
  96     ] ++ get_links(activity) ++ categories ++ attachments ++ in_reply_to ++ author ++ mentions ++ emoji_links
  97   end
  98
  99   def to_simple_form(%{data: %{"type" => "Like"}} = activity, user, with_author) do
 100     h = fn(str) -> [to_charlist(str)] end
 101
 102     updated_at = activity.data["published"]
 103     inserted_at = activity.data["published"]
 104
 105     in_reply_to = get_in_reply_to(activity.data)
 106     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 107     mentions = activity.data["to"] |> get_mentions
 108
 109     [
 110       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/favorite']},
 111       {:id, h.(activity.data["id"])},
 112       {:title, ['New favorite by #{user.nickname}']},
 113       {:content, [type: 'html'], ['#{user.nickname} favorited something']},
 114       {:published, h.(inserted_at)},
 115       {:updated, h.(updated_at)},
 116       {:"activity:object", [
 117         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
 118         {:id, h.(activity.data["object"])}, # For notes, federate the object id.
 119       ]},
 120       {:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
 121       {:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
 122       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 123       {:"thr:in-reply-to", [ref: to_charlist(activity.data["object"])], []}
 124     ] ++ author ++ mentions
 125   end
 126
 127   def to_simple_form(%{data: %{"type" => "Announce"}} = activity, user, with_author) do
 128     h = fn(str) -> [to_charlist(str)] end
 129
 130     updated_at = activity.data["published"]
 131     inserted_at = activity.data["published"]
 132
 133     in_reply_to = get_in_reply_to(activity.data)
 134     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 135
 136     retweeted_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 137     retweeted_user = User.get_cached_by_ap_id(retweeted_activity.data["actor"])
 138
 139     retweeted_xml = to_simple_form(retweeted_activity, retweeted_user, true)
 140
 141     mentions = activity.data["to"] |> get_mentions
 142     [
 143       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 144       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/share']},
 145       {:id, h.(activity.data["id"])},
 146       {:title, ['#{user.nickname} repeated a notice']},
 147       {:content, [type: 'html'], ['RT #{retweeted_activity.data["object"]["content"]}']},
 148       {:published, h.(inserted_at)},
 149       {:updated, h.(updated_at)},
 150       {:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
 151       {:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
 152       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 153       {:"activity:object", retweeted_xml}
 154     ] ++ mentions ++ author
 155   end
 156
 157   def to_simple_form(%{data: %{"type" => "Follow"}} = activity, user, with_author) do
 158     h = fn(str) -> [to_charlist(str)] end
 159
 160     updated_at = activity.data["published"]
 161     inserted_at = activity.data["published"]
 162
 163     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 164
 165     mentions = (activity.data["to"] || []) |> get_mentions
 166     [
 167       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 168       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/follow']},
 169       {:id, h.(activity.data["id"])},
 170       {:title, ['#{user.nickname} started following #{activity.data["object"]}']},
 171       {:content, [type: 'html'], ['#{user.nickname} started following #{activity.data["object"]}']},
 172       {:published, h.(inserted_at)},
 173       {:updated, h.(updated_at)},
 174       {:"activity:object", [
 175         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
 176         {:id, h.(activity.data["object"])},
 177         {:uri, h.(activity.data["object"])},
 178       ]},
 179       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 180     ] ++ mentions ++ author
 181   end
 182
 183   # Only undos of follow for now. Will need to get redone once there are more
 184   def to_simple_form(%{data: %{"type" => "Undo"}} = activity, user, with_author) do
 185     h = fn(str) -> [to_charlist(str)] end
 186
 187     updated_at = activity.data["published"]
 188     inserted_at = activity.data["published"]
 189
 190     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 191     follow_activity = Activity.get_by_ap_id(activity.data["object"])
 192
 193     mentions = (activity.data["to"] || []) |> get_mentions
 194     [
 195       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 196       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/unfollow']},
 197       {:id, h.(activity.data["id"])},
 198       {:title, ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
 199       {:content, [type: 'html'], ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
 200       {:published, h.(inserted_at)},
 201       {:updated, h.(updated_at)},
 202       {:"activity:object", [
 203         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
 204         {:id, h.(follow_activity.data["object"])},
 205         {:uri, h.(follow_activity.data["object"])},
 206       ]},
 207       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 208     ] ++ mentions ++ author
 209   end
 210
 211   def to_simple_form(%{data: %{"type" => "Delete"}} = activity, user, with_author) do
 212     h = fn(str) -> [to_charlist(str)] end
 213
 214     updated_at = activity.data["published"]
 215     inserted_at = activity.data["published"]
 216
 217     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 218
 219     [
 220       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 221       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/delete']},
 222       {:id, h.(activity.data["object"])},
 223       {:title, ['An object was deleted']},
 224       {:content, [type: 'html'], ['An object was deleted']},
 225       {:published, h.(inserted_at)},
 226       {:updated, h.(updated_at)}
 227     ]  ++ author
 228   end
 229
 230   def wrap_with_entry(simple_form) do
 231     [{
 232       :entry, [
 233         xmlns: 'http://www.w3.org/2005/Atom',
 234         "xmlns:thr": 'http://purl.org/syndication/thread/1.0',
 235         "xmlns:activity": 'http://activitystrea.ms/spec/1.0/',
 236         "xmlns:poco": 'http://portablecontacts.net/spec/1.0',
 237         "xmlns:ostatus": 'http://ostatus.org/schema/1.0'
 238       ], simple_form
 239     }]
 240   end
 241
 242   def to_simple_form(_, _, _), do: nil
 243 end