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