[#948] /api/v1/account_search added optional parameters (limit, offset, following)

lib/pleroma/user/search.ex

@@ -7,45 +7,69 @@ defmodule Pleroma.User.Search do
   alias Pleroma.User
   import Ecto.Query
 
-  def search(query, opts \\ []) do
+  @similarity_threshold 0.25
+  @limit 20
+
+  def search(query_string, opts \\ []) do
     resolve = Keyword.get(opts, :resolve, false)
+    following = Keyword.get(opts, :following, false)
+    result_limit = Keyword.get(opts, :limit, @limit)
+    offset = Keyword.get(opts, :offset, 0)
+
     for_user = Keyword.get(opts, :for_user)
 
     # Strip the beginning @ off if there is a query
-    query = String.trim_leading(query, "@")
+    query_string = String.trim_leading(query_string, "@")
 
-    maybe_resolve(resolve, for_user, query)
+    maybe_resolve(resolve, for_user, query_string)
 
     {:ok, results} =
       Repo.transaction(fn ->
-        Ecto.Adapters.SQL.query(Repo, "select set_limit(0.25)", [])
+        Ecto.Adapters.SQL.query(
+          Repo,
+          "select set_limit(#{@similarity_threshold})",
+          []
+        )
 
-        query
-        |> search_query(for_user)
+        query_string
+        |> search_query(for_user, following)
+        |> paginate(result_limit, offset)
         |> Repo.all()
       end)
 
     results
   end
 
-  defp search_query(query, for_user) do
-    query
-    |> union_query()
+  defp search_query(query_string, for_user, following) do
+    for_user
+    |> base_query(following)
+    |> search_subqueries(query_string)
+    |> union_subqueries
     |> distinct_query()
     |> boost_search_rank_query(for_user)
     |> subquery()
     |> order_by(desc: :search_rank)
-    |> limit(20)
     |> maybe_restrict_local(for_user)
   end
 
-  defp union_query(query) do
-    fts_subquery = fts_search_subquery(query)
-    trigram_subquery = trigram_search_subquery(query)
+  defp base_query(_user, false), do: User
+  defp base_query(user, true), do: User.get_followers_query(user)
 
+  defp paginate(query, limit, offset) do
+    from(q in query, limit: ^limit, offset: ^offset)
+  end
+
+  defp union_subqueries({fts_subquery, trigram_subquery}) do
     from(s in trigram_subquery, union_all: ^fts_subquery)
   end
 
+  defp search_subqueries(base_query, query_string) do
+    {
+      fts_search_subquery(base_query, query_string),
+      trigram_search_subquery(base_query, query_string)
+    }
+  end
+
   defp distinct_query(q) do
     from(s in subquery(q), order_by: s.search_type, distinct: s.id)
   end
@@ -102,7 +126,8 @@ defp boost_search_rank_query(query, for_user) do
     )
   end
 
-  defp fts_search_subquery(term, query \\ User) do
+  @spec fts_search_subquery(User.t() | Ecto.Query.t(), String.t()) :: Ecto.Query.t()
+  defp fts_search_subquery(query, term) do
     processed_query =
       term
       |> String.replace(~r/\W+/, " ")
@@ -144,9 +169,10 @@ defp fts_search_subquery(term, query \\ User) do
     |> User.restrict_deactivated()
   end
 
-  defp trigram_search_subquery(term) do
+  @spec trigram_search_subquery(User.t() | Ecto.Query.t(), String.t()) :: Ecto.Query.t()
+  defp trigram_search_subquery(query, term) do
     from(
-      u in User,
+      u in query,
       select_merge: %{
         # ^1 gives 'Postgrex expected a binary, got 1' for some weird reason
         search_type: fragment("?", 1),

lib/pleroma/web/controller_helper.ex

@@ -15,4 +15,22 @@ def json_response(conn, status, json) do
     |> put_status(status)
     |> json(json)
   end
+
+  @spec fetch_integer_param(map(), String.t(), integer() | nil) :: integer() | nil
+  def fetch_integer_param(params, name, default \\ nil) do
+    params
+    |> Map.get(name, default)
+    |> param_to_integer(default)
+  end
+
+  defp param_to_integer(val, _) when is_integer(val), do: val
+
+  defp param_to_integer(val, default) when is_binary(val) do
+    case Integer.parse(val) do
+      {res, _} -> res
+      _ -> default
+    end
+  end
+
+  defp param_to_integer(_, default), do: default
 end

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -1118,58 +1118,6 @@ def unsubscribe(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     end
   end
 
-  def search2(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
-    accounts = User.search(query, resolve: params["resolve"] == "true", for_user: user)
-    statuses = Activity.search(user, query)
-    tags_path = Web.base_url() <> "/tag/"
-
-    tags =
-      query
-      |> String.split()
-      |> Enum.uniq()
-      |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
-      |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
-      |> Enum.map(fn tag -> %{name: tag, url: tags_path <> tag} end)
-
-    res = %{
-      "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
-      "statuses" =>
-        StatusView.render("index.json", activities: statuses, for: user, as: :activity),
-      "hashtags" => tags
-    }
-
-    json(conn, res)
-  end
-
-  def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
-    accounts = User.search(query, resolve: params["resolve"] == "true", for_user: user)
-    statuses = Activity.search(user, query)
-
-    tags =
-      query
-      |> String.split()
-      |> Enum.uniq()
-      |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
-      |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
-
-    res = %{
-      "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
-      "statuses" =>
-        StatusView.render("index.json", activities: statuses, for: user, as: :activity),
-      "hashtags" => tags
-    }
-
-    json(conn, res)
-  end
-
-  def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
-    accounts = User.search(query, resolve: params["resolve"] == "true", for_user: user)
-
-    res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
-
-    json(conn, res)
-  end
-
   def favourites(%{assigns: %{user: user}} = conn, params) do
     params =
       params

lib/pleroma/web/mastodon_api/search_controller.ex

@@ -0,0 +1,79 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.MastodonAPI.SearchController do
+  use Pleroma.Web, :controller
+  alias Pleroma.Activity
+  alias Pleroma.User
+  alias Pleroma.Web
+  alias Pleroma.Web.MastodonAPI.AccountView
+  alias Pleroma.Web.MastodonAPI.StatusView
+
+  alias Pleroma.Web.ControllerHelper
+
+  require Logger
+
+  plug(Pleroma.Plugs.RateLimiter, :search when action in [:search, :search2, :account_search])
+
+  def search2(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
+    accounts = User.search(query, search_options(params, user))
+    statuses = Activity.search(user, query)
+    tags_path = Web.base_url() <> "/tag/"
+
+    tags =
+      query
+      |> String.split()
+      |> Enum.uniq()
+      |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
+      |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
+      |> Enum.map(fn tag -> %{name: tag, url: tags_path <> tag} end)
+
+    res = %{
+      "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
+      "statuses" =>
+        StatusView.render("index.json", activities: statuses, for: user, as: :activity),
+      "hashtags" => tags
+    }
+
+    json(conn, res)
+  end
+
+  def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
+    accounts = User.search(query, search_options(params, user))
+    statuses = Activity.search(user, query)
+
+    tags =
+      query
+      |> String.split()
+      |> Enum.uniq()
+      |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
+      |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
+
+    res = %{
+      "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
+      "statuses" =>
+        StatusView.render("index.json", activities: statuses, for: user, as: :activity),
+      "hashtags" => tags
+    }
+
+    json(conn, res)
+  end
+
+  def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
+    accounts = User.search(query, search_options(params, user))
+    res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
+
+    json(conn, res)
+  end
+
+  defp search_options(params, user) do
+    [
+      resolve: params["resolve"] == "true",
+      following: params["following"] == "true",
+      limit: ControllerHelper.fetch_integer_param(params, "limit"),
+      offset: ControllerHelper.fetch_integer_param(params, "offset"),
+      for_user: user
+    ]
+  end
+end

lib/pleroma/web/router.ex

@@ -412,7 +412,7 @@ defmodule Pleroma.Web.Router do
 
     get("/trends", MastodonAPIController, :empty_array)
 
-    get("/accounts/search", MastodonAPIController, :account_search)
+    get("/accounts/search", SearchController, :account_search)
 
     scope [] do
       pipe_through(:oauth_read_or_public)
@@ -431,7 +431,7 @@ defmodule Pleroma.Web.Router do
       get("/accounts/:id/following", MastodonAPIController, :following)
       get("/accounts/:id", MastodonAPIController, :user)
 
-      get("/search", MastodonAPIController, :search)
+      get("/search", SearchController, :search)
 
       get("/pleroma/accounts/:id/favourites", MastodonAPIController, :user_favourites)
     end
@@ -439,7 +439,7 @@ defmodule Pleroma.Web.Router do
 
   scope "/api/v2", Pleroma.Web.MastodonAPI do
     pipe_through([:api, :oauth_read_or_public])
-    get("/search", MastodonAPIController, :search2)
+    get("/search", SearchController, :search2)
   end
 
   scope "/api", Pleroma.Web do

test/user_test.exs

@@ -1011,6 +1011,18 @@ test "User.delete() plugs any possible zombie objects" do
   end
 
   describe "User.search" do
+    test "accepts limit parameter" do
+      Enum.each(0..4, &insert(:user, %{nickname: "john#{&1}"}))
+      assert length(User.search("john", limit: 3)) == 3
+      assert length(User.search("john")) == 5
+    end
+
+    test "accepts offset parameter" do
+      Enum.each(0..4, &insert(:user, %{nickname: "john#{&1}"}))
+      assert length(User.search("john", limit: 3)) == 3
+      assert length(User.search("john", limit: 3, offset: 3)) == 2
+    end
+
     test "finds a user by full or partial nickname" do
       user = insert(:user, %{nickname: "john"})
 
@@ -1077,6 +1089,24 @@ test "finds users, boosting ranks of friends and followers" do
                Enum.map(User.search("doe", resolve: false, for_user: u1), & &1.id) == []
     end
 
+    test "finds followers of user by partial name" do
+      u1 = insert(:user)
+      u2 = insert(:user, %{name: "Jimi"})
+      follower_jimi = insert(:user, %{name: "Jimi Hendrix"})
+      follower_lizz = insert(:user, %{name: "Lizz Wright"})
+      friend = insert(:user, %{name: "Jimi"})
+
+      {:ok, follower_jimi} = User.follow(follower_jimi, u1)
+      {:ok, _follower_lizz} = User.follow(follower_lizz, u2)
+      {:ok, u1} = User.follow(u1, friend)
+
+      assert Enum.map(User.search("jimi", following: true, for_user: u1), & &1.id) == [
+               follower_jimi.id
+             ]
+
+      assert User.search("lizz", following: true, for_user: u1) == []
+    end
+
     test "find local and remote users for authenticated users" do
       u1 = insert(:user, %{name: "lain"})
       u2 = insert(:user, %{name: "ebn", nickname: "lain@mastodon.social", local: false})

test/web/mastodon_api/mastodon_api_controller_test.exs

@@ -2134,116 +2134,6 @@ test "unimplemented follow_requests, blocks, domain blocks" do
     end)
   end
 
-  test "account search", %{conn: conn} do
-    user = insert(:user)
-    user_two = insert(:user, %{nickname: "shp@shitposter.club"})
-    user_three = insert(:user, %{nickname: "shp@heldscal.la", name: "I love 2hu"})
-
-    results =
-      conn
-      |> assign(:user, user)
-      |> get("/api/v1/accounts/search", %{"q" => "shp"})
-      |> json_response(200)
-
-    result_ids = for result <- results, do: result["acct"]
-
-    assert user_two.nickname in result_ids
-    assert user_three.nickname in result_ids
-
-    results =
-      conn
-      |> assign(:user, user)
-      |> get("/api/v1/accounts/search", %{"q" => "2hu"})
-      |> json_response(200)
-
-    result_ids = for result <- results, do: result["acct"]
-
-    assert user_three.nickname in result_ids
-  end
-
-  test "search", %{conn: conn} do
-    user = insert(:user)
-    user_two = insert(:user, %{nickname: "shp@shitposter.club"})
-    user_three = insert(:user, %{nickname: "shp@heldscal.la", name: "I love 2hu"})
-
-    {:ok, activity} = CommonAPI.post(user, %{"status" => "This is about 2hu"})
-
-    {:ok, _activity} =
-      CommonAPI.post(user, %{
-        "status" => "This is about 2hu, but private",
-        "visibility" => "private"
-      })
-
-    {:ok, _} = CommonAPI.post(user_two, %{"status" => "This isn't"})
-
-    conn =
-      conn
-      |> get("/api/v1/search", %{"q" => "2hu"})
-
-    assert results = json_response(conn, 200)
-
-    [account | _] = results["accounts"]
-    assert account["id"] == to_string(user_three.id)
-
-    assert results["hashtags"] == []
-
-    [status] = results["statuses"]
-    assert status["id"] == to_string(activity.id)
-  end
-
-  test "search fetches remote statuses", %{conn: conn} do
-    capture_log(fn ->
-      conn =
-        conn
-        |> get("/api/v1/search", %{"q" => "https://shitposter.club/notice/2827873"})
-
-      assert results = json_response(conn, 200)
-
-      [status] = results["statuses"]
-      assert status["uri"] == "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment"
-    end)
-  end
-
-  test "search doesn't show statuses that it shouldn't", %{conn: conn} do
-    {:ok, activity} =
-      CommonAPI.post(insert(:user), %{
-        "status" => "This is about 2hu, but private",
-        "visibility" => "private"
-      })
-
-    capture_log(fn ->
-      conn =
-        conn
-        |> get("/api/v1/search", %{"q" => Object.normalize(activity).data["id"]})
-
-      assert results = json_response(conn, 200)
-
-      [] = results["statuses"]
-    end)
-  end
-
-  test "search fetches remote accounts", %{conn: conn} do
-    user = insert(:user)
-
-    conn =
-      conn
-      |> assign(:user, user)
-      |> get("/api/v1/search", %{"q" => "shp@social.heldscal.la", "resolve" => "true"})
-
-    assert results = json_response(conn, 200)
-    [account] = results["accounts"]
-    assert account["acct"] == "shp@social.heldscal.la"
-  end
-
-  test "search doesn't fetch remote accounts if resolve is false", %{conn: conn} do
-    conn =
-      conn
-      |> get("/api/v1/search", %{"q" => "shp@social.heldscal.la", "resolve" => "false"})
-
-    assert results = json_response(conn, 200)
-    assert [] == results["accounts"]
-  end
-
   test "returns the favorites of a user", %{conn: conn} do
     user = insert(:user)
     other_user = insert(:user)

test/web/mastodon_api/search_controller_test.exs

@@ -0,0 +1,128 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.MastodonAPI.SearchControllerTest do
+  use Pleroma.Web.ConnCase
+
+  alias Pleroma.Object
+  alias Pleroma.Web.CommonAPI
+  import Pleroma.Factory
+  import ExUnit.CaptureLog
+  import Tesla.Mock
+
+  setup do
+    mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
+    :ok
+  end
+
+  test "account search", %{conn: conn} do
+    user = insert(:user)
+    user_two = insert(:user, %{nickname: "shp@shitposter.club"})
+    user_three = insert(:user, %{nickname: "shp@heldscal.la", name: "I love 2hu"})
+
+    results =
+      conn
+      |> assign(:user, user)
+      |> get("/api/v1/accounts/search", %{"q" => "shp"})
+      |> json_response(200)
+
+    result_ids = for result <- results, do: result["acct"]
+
+    assert user_two.nickname in result_ids
+    assert user_three.nickname in result_ids
+
+    results =
+      conn
+      |> assign(:user, user)
+      |> get("/api/v1/accounts/search", %{"q" => "2hu"})
+      |> json_response(200)
+
+    result_ids = for result <- results, do: result["acct"]
+
+    assert user_three.nickname in result_ids
+  end
+
+  test "search", %{conn: conn} do
+    user = insert(:user)
+    user_two = insert(:user, %{nickname: "shp@shitposter.club"})
+    user_three = insert(:user, %{nickname: "shp@heldscal.la", name: "I love 2hu"})
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "This is about 2hu"})
+
+    {:ok, _activity} =
+      CommonAPI.post(user, %{
+        "status" => "This is about 2hu, but private",
+        "visibility" => "private"
+      })
+
+    {:ok, _} = CommonAPI.post(user_two, %{"status" => "This isn't"})
+
+    conn =
+      conn
+      |> get("/api/v1/search", %{"q" => "2hu"})
+
+    assert results = json_response(conn, 200)
+
+    [account | _] = results["accounts"]
+    assert account["id"] == to_string(user_three.id)
+
+    assert results["hashtags"] == []
+
+    [status] = results["statuses"]
+    assert status["id"] == to_string(activity.id)
+  end
+
+  test "search fetches remote statuses", %{conn: conn} do
+    capture_log(fn ->
+      conn =
+        conn
+        |> get("/api/v1/search", %{"q" => "https://shitposter.club/notice/2827873"})
+
+      assert results = json_response(conn, 200)
+
+      [status] = results["statuses"]
+      assert status["uri"] == "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment"
+    end)
+  end
+
+  test "search doesn't show statuses that it shouldn't", %{conn: conn} do
+    {:ok, activity} =
+      CommonAPI.post(insert(:user), %{
+        "status" => "This is about 2hu, but private",
+        "visibility" => "private"
+      })
+
+    capture_log(fn ->
+      conn =
+        conn
+        |> get("/api/v1/search", %{"q" => Object.normalize(activity).data["id"]})
+
+      assert results = json_response(conn, 200)
+
+      [] = results["statuses"]
+    end)
+  end
+
+  test "search fetches remote accounts", %{conn: conn} do
+    user = insert(:user)
+
+    conn =
+      conn
+      |> assign(:user, user)
+      |> get("/api/v1/search", %{"q" => "shp@social.heldscal.la", "resolve" => "true"})
+
+    assert results = json_response(conn, 200)
+    [account] = results["accounts"]
+    assert account["acct"] == "shp@social.heldscal.la"
+  end
+
+  test "search doesn't fetch remote accounts if resolve is false", %{conn: conn} do
+    conn =
+      conn
+      |> get("/api/v1/search", %{"q" => "shp@social.heldscal.la", "resolve" => "false"})
+
+    assert results = json_response(conn, 200)
+    assert [] == results["accounts"]
+  end
+end