Merge remote-tracking branch 'remotes/upstream/develop' into 1260-rate-limited-auth...
[akkoma] / lib / pleroma / web / activity_pub / views / user_view.ex
index b3b02c4fba230a989288fc2deac55006ff8b65b9..9b39d1629144d0f5f130d271ed2c58862a236a95 100644 (file)
@@ -1,28 +1,94 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.UserView do
   use Pleroma.Web, :view
-  alias Pleroma.Web.Salmon
+
+  alias Pleroma.Keys
+  alias Pleroma.Repo
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.Endpoint
+  alias Pleroma.Web.Router.Helpers
 
-  def render("user.json", %{user: user}) do
-    {:ok, _, public_key} = Salmon.keys_from_pem(user.info["keys"])
-    public_key = :public_key.pem_entry_encode(:RSAPublicKey, public_key)
+  import Ecto.Query
+
+  def render("endpoints.json", %{user: %User{nickname: nil, local: true} = _user}) do
+    %{"sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox)}
+  end
+
+  def render("endpoints.json", %{user: %User{local: true} = _user}) do
+    %{
+      "oauthAuthorizationEndpoint" => Helpers.o_auth_url(Endpoint, :authorize),
+      "oauthRegistrationEndpoint" => Helpers.app_url(Endpoint, :create),
+      "oauthTokenEndpoint" => Helpers.o_auth_url(Endpoint, :token_exchange),
+      "sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox),
+      "uploadMedia" => Helpers.activity_pub_url(Endpoint, :upload_media)
+    }
+  end
+
+  def render("endpoints.json", _), do: %{}
+
+  def render("service.json", %{user: user}) do
+    {:ok, user} = User.ensure_keys_present(user)
+    {:ok, _, public_key} = Keys.keys_from_pem(user.keys)
+    public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
     public_key = :public_key.pem_encode([public_key])
+
+    endpoints = render("endpoints.json", %{user: user})
+
     %{
-      "@context" => [
-        "https://www.w3.org/ns/activitystreams",
-        "https://w3id.org/security/v1",
+      "id" => user.ap_id,
+      "type" => "Application",
+      "following" => "#{user.ap_id}/following",
+      "followers" => "#{user.ap_id}/followers",
+      "inbox" => "#{user.ap_id}/inbox",
+      "name" => "Pleroma",
+      "summary" =>
+        "An internal service actor for this Pleroma instance.  No user-serviceable parts inside.",
+      "url" => user.ap_id,
+      "manuallyApprovesFollowers" => false,
+      "publicKey" => %{
+        "id" => "#{user.ap_id}#main-key",
+        "owner" => user.ap_id,
+        "publicKeyPem" => public_key
+      },
+      "endpoints" => endpoints
+    }
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  # the instance itself is not a Person, but instead an Application
+  def render("user.json", %{user: %User{nickname: nil} = user}),
+    do: render("service.json", %{user: user})
+
+  def render("user.json", %{user: %User{nickname: "internal." <> _} = user}),
+    do: render("service.json", %{user: user}) |> Map.put("preferredUsername", user.nickname)
+
+  def render("user.json", %{user: user}) do
+    {:ok, user} = User.ensure_keys_present(user)
+    {:ok, _, public_key} = Keys.keys_from_pem(user.keys)
+    public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
+    public_key = :public_key.pem_encode([public_key])
+
+    endpoints = render("endpoints.json", %{user: user})
+
+    emoji_tags = Transmogrifier.take_emoji_tags(user)
+
+    fields =
+      user.info
+      |> User.Info.fields()
+      |> Enum.map(fn %{"name" => name, "value" => value} ->
         %{
-          "manuallyApprovesFollowers" => "as:manuallyApprovesFollowers",
-          "sensitive" => "as:sensitive",
-          "Hashtag" => "as:Hashtag",
-          "ostatus" => "http://ostatus.org#",
-          "atomUri" => "ostatus:atomUri",
-          "inReplyToAtomUri" => "ostatus:inReplyToAtomUri",
-          "conversation" => "ostatus:conversation",
-          "toot" => "http://joinmastodon.org/ns#",
-          "Emoji" => "toot:Emoji"
+          "name" => Pleroma.HTML.strip_tags(name),
+          "value" => Pleroma.HTML.filter_tags(value, Pleroma.HTML.Scrubber.LinksOnly)
         }
-      ],
+      end)
+      |> Enum.map(&Map.put(&1, "type", "PropertyValue"))
+
+    %{
       "id" => user.ap_id,
       "type" => "Person",
       "following" => "#{user.ap_id}/following",
@@ -33,19 +99,188 @@ defmodule Pleroma.Web.ActivityPub.UserView do
       "name" => user.name,
       "summary" => user.bio,
       "url" => user.ap_id,
-      "manuallyApprovesFollowers" => false,
+      "manuallyApprovesFollowers" => user.info.locked,
       "publicKey" => %{
         "id" => "#{user.ap_id}#main-key",
         "owner" => user.ap_id,
         "publicKeyPem" => public_key
       },
-      "endpoints" => %{
-        "sharedInbox" => "#{Pleroma.Web.Endpoint.url}/inbox"
-      },
-      "icon" => %{
-        "type" => "Image",
-        "url" => User.avatar_url(user)
-      }
+      "endpoints" => endpoints,
+      "attachment" => fields,
+      "tag" => (user.info.source_data["tag"] || []) ++ emoji_tags,
+      "discoverable" => user.info.discoverable
     }
+    |> Map.merge(maybe_make_image(&User.avatar_url/2, "icon", user))
+    |> Map.merge(maybe_make_image(&User.banner_url/2, "image", user))
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def render("following.json", %{user: user, page: page} = opts) do
+    showing_items = (opts[:for] && opts[:for] == user) || !user.info.hide_follows
+    showing_count = showing_items || !user.info.hide_follows_count
+
+    query = User.get_friends_query(user)
+    query = from(user in query, select: [:ap_id])
+    following = Repo.all(query)
+
+    total =
+      if showing_count do
+        length(following)
+      else
+        0
+      end
+
+    collection(following, "#{user.ap_id}/following", page, showing_items, total)
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def render("following.json", %{user: user} = opts) do
+    showing_items = (opts[:for] && opts[:for] == user) || !user.info.hide_follows
+    showing_count = showing_items || !user.info.hide_follows_count
+
+    query = User.get_friends_query(user)
+    query = from(user in query, select: [:ap_id])
+    following = Repo.all(query)
+
+    total =
+      if showing_count do
+        length(following)
+      else
+        0
+      end
+
+    %{
+      "id" => "#{user.ap_id}/following",
+      "type" => "OrderedCollection",
+      "totalItems" => total,
+      "first" =>
+        if showing_items do
+          collection(following, "#{user.ap_id}/following", 1, !user.info.hide_follows)
+        else
+          "#{user.ap_id}/following?page=1"
+        end
+    }
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def render("followers.json", %{user: user, page: page} = opts) do
+    showing_items = (opts[:for] && opts[:for] == user) || !user.info.hide_followers
+    showing_count = showing_items || !user.info.hide_followers_count
+
+    query = User.get_followers_query(user)
+    query = from(user in query, select: [:ap_id])
+    followers = Repo.all(query)
+
+    total =
+      if showing_count do
+        length(followers)
+      else
+        0
+      end
+
+    collection(followers, "#{user.ap_id}/followers", page, showing_items, total)
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def render("followers.json", %{user: user} = opts) do
+    showing_items = (opts[:for] && opts[:for] == user) || !user.info.hide_followers
+    showing_count = showing_items || !user.info.hide_followers_count
+
+    query = User.get_followers_query(user)
+    query = from(user in query, select: [:ap_id])
+    followers = Repo.all(query)
+
+    total =
+      if showing_count do
+        length(followers)
+      else
+        0
+      end
+
+    %{
+      "id" => "#{user.ap_id}/followers",
+      "type" => "OrderedCollection",
+      "totalItems" => total,
+      "first" =>
+        if showing_items do
+          collection(followers, "#{user.ap_id}/followers", 1, showing_items, total)
+        else
+          "#{user.ap_id}/followers?page=1"
+        end
+    }
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def render("activity_collection.json", %{iri: iri}) do
+    %{
+      "id" => iri,
+      "type" => "OrderedCollection",
+      "first" => "#{iri}?page=true"
+    }
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def render("activity_collection_page.json", %{activities: activities, iri: iri}) do
+    # this is sorted chronologically, so first activity is the newest (max)
+    {max_id, min_id, collection} =
+      if length(activities) > 0 do
+        {
+          Enum.at(activities, 0).id,
+          Enum.at(Enum.reverse(activities), 0).id,
+          Enum.map(activities, fn act ->
+            {:ok, data} = Transmogrifier.prepare_outgoing(act.data)
+            data
+          end)
+        }
+      else
+        {
+          0,
+          0,
+          []
+        }
+      end
+
+    %{
+      "id" => "#{iri}?max_id=#{max_id}&page=true",
+      "type" => "OrderedCollectionPage",
+      "partOf" => iri,
+      "orderedItems" => collection,
+      "next" => "#{iri}?max_id=#{min_id}&page=true"
+    }
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
+  def collection(collection, iri, page, show_items \\ true, total \\ nil) do
+    offset = (page - 1) * 10
+    items = Enum.slice(collection, offset, 10)
+    items = Enum.map(items, fn user -> user.ap_id end)
+    total = total || length(collection)
+
+    map = %{
+      "id" => "#{iri}?page=#{page}",
+      "type" => "OrderedCollectionPage",
+      "partOf" => iri,
+      "totalItems" => total,
+      "orderedItems" => if(show_items, do: items, else: [])
+    }
+
+    if offset < total do
+      Map.put(map, "next", "#{iri}?page=#{page + 1}")
+    else
+      map
+    end
+  end
+
+  defp maybe_make_image(func, key, user) do
+    if image = func.(user, no_default: true) do
+      %{
+        key => %{
+          "type" => "Image",
+          "url" => image
+        }
+      }
+    else
+      %{}
+    end
   end
 end