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   def to_simple_form(activity, user, with_author \\ false)
  28   def to_simple_form(%{data: %{"object" => %{"type" => "Note"}}} = activity, user, with_author) do
  29     h = fn(str) -> [to_charlist(str)] end
  30
  31     updated_at = activity.data["published"]
  32     inserted_at = activity.data["published"]
  33
  34     attachments = Enum.map(activity.data["object"]["attachment"] || [], fn(attachment) ->
  35       url = hd(attachment["url"])
  36       {:link, [rel: 'enclosure', href: to_charlist(url["href"]), type: to_charlist(url["mediaType"])], []}
  37     end)
  38
  39     in_reply_to = get_in_reply_to(activity.data)
  40     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
  41     mentions = activity.data["to"] |> get_mentions
  42
  43     categories = (activity.data["object"]["tag"] || [])
  44     |> Enum.map(fn (tag) -> {:category, [term: to_charlist(tag)], []} end)
  45
  46     [
  47       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
  48       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/post']},
  49       {:id, h.(activity.data["object"]["id"])}, # For notes, federate the object id.
  50       {:title, ['New note by #{user.nickname}']},
  51       {:content, [type: 'html'], h.(activity.data["object"]["content"])},
  52       {:published, h.(inserted_at)},
  53       {:updated, h.(updated_at)},
  54       {:"ostatus:conversation", [], h.(activity.data["context"])},
  55       {:link, [href: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
  56       {:link, [type: ['application/atom+xml'], href: h.(activity.data["object"]["id"]), rel: 'self'], []}
  57     ] ++ categories ++ attachments ++ in_reply_to ++ author ++ mentions
  58   end
  59
  60   def to_simple_form(%{data: %{"type" => "Like"}} = activity, user, with_author) do
  61     h = fn(str) -> [to_charlist(str)] end
  62
  63     updated_at = activity.data["published"]
  64     inserted_at = activity.data["published"]
  65
  66     in_reply_to = get_in_reply_to(activity.data)
  67     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
  68     mentions = activity.data["to"] |> get_mentions
  69
  70     [
  71       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/favorite']},
  72       {:id, h.(activity.data["id"])},
  73       {:title, ['New favorite by #{user.nickname}']},
  74       {:content, [type: 'html'], ['#{user.nickname} favorited something']},
  75       {:published, h.(inserted_at)},
  76       {:updated, h.(updated_at)},
  77       {:"activity:object", [
  78         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
  79         {:id, h.(activity.data["object"])}, # For notes, federate the object id.
  80       ]},
  81       {:"ostatus:conversation", [], h.(activity.data["context"])},
  82       {:link, [href: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
  83       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
  84       {:"thr:in-reply-to", [ref: to_charlist(activity.data["object"])], []}
  85     ] ++ author ++ mentions
  86   end
  87
  88   def to_simple_form(%{data: %{"type" => "Announce"}} = activity, user, with_author) do
  89     h = fn(str) -> [to_charlist(str)] end
  90
  91     updated_at = activity.data["published"]
  92     inserted_at = activity.data["published"]
  93
  94     in_reply_to = get_in_reply_to(activity.data)
  95     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
  96
  97     retweeted_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
  98     retweeted_user = User.get_cached_by_ap_id(retweeted_activity.data["actor"])
  99
 100     retweeted_xml = to_simple_form(retweeted_activity, retweeted_user, true)
 101
 102     mentions = activity.data["to"] |> get_mentions
 103     [
 104       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 105       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/share']},
 106       {:id, h.(activity.data["id"])},
 107       {:title, ['#{user.nickname} repeated a notice']},
 108       {:content, [type: 'html'], ['RT #{retweeted_activity.data["object"]["content"]}']},
 109       {:published, h.(inserted_at)},
 110       {:updated, h.(updated_at)},
 111       {:"ostatus:conversation", [], h.(activity.data["context"])},
 112       {:link, [href: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
 113       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 114       {:"activity:object", retweeted_xml}
 115     ] ++ mentions ++ author
 116   end
 117
 118   def to_simple_form(%{data: %{"type" => "Follow"}} = activity, user, with_author) do
 119     h = fn(str) -> [to_charlist(str)] end
 120
 121     updated_at = activity.data["published"]
 122     inserted_at = activity.data["published"]
 123
 124     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 125
 126     mentions = (activity.data["to"] || []) |> get_mentions
 127     [
 128       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 129       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/follow']},
 130       {:id, h.(activity.data["id"])},
 131       {:title, ['#{user.nickname} started following #{activity.data["object"]}']},
 132       {:content, [type: 'html'], ['#{user.nickname} started following #{activity.data["object"]}']},
 133       {:published, h.(inserted_at)},
 134       {:updated, h.(updated_at)},
 135       {:"activity:object", [
 136         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
 137         {:id, h.(activity.data["object"])},
 138         {:uri, h.(activity.data["object"])},
 139       ]},
 140       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 141     ] ++ mentions ++ author
 142   end
 143
 144   # Only undos of follow for now. Will need to get redone once there are more
 145   def to_simple_form(%{data: %{"type" => "Undo"}} = activity, user, with_author) do
 146     h = fn(str) -> [to_charlist(str)] end
 147
 148     updated_at = activity.data["published"]
 149     inserted_at = activity.data["published"]
 150
 151     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 152     follow_activity = Activity.get_by_ap_id(activity.data["object"])
 153
 154     mentions = (activity.data["to"] || []) |> get_mentions
 155     [
 156       {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 157       {:"activity:verb", ['http://activitystrea.ms/schema/1.0/unfollow']},
 158       {:id, h.(activity.data["id"])},
 159       {:title, ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
 160       {:content, [type: 'html'], ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
 161       {:published, h.(inserted_at)},
 162       {:updated, h.(updated_at)},
 163       {:"activity:object", [
 164         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
 165         {:id, h.(follow_activity.data["object"])},
 166         {:uri, h.(follow_activity.data["object"])},
 167       ]},
 168       {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 169     ] ++ mentions ++ author
 170   end
 171
 172   def wrap_with_entry(simple_form) do
 173     [{
 174       :entry, [
 175         xmlns: 'http://www.w3.org/2005/Atom',
 176         "xmlns:thr": 'http://purl.org/syndication/thread/1.0',
 177         "xmlns:activity": 'http://activitystrea.ms/spec/1.0/',
 178         "xmlns:poco": 'http://portablecontacts.net/spec/1.0',
 179         "xmlns:ostatus": 'http://ostatus.org/schema/1.0'
 180       ], simple_form
 181     }]
 182   end
 183
 184   def to_simple_form(_, _, _), do: nil
 185 end