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