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Extend Pleroma.Pagination to support offset-based pagination, use async/await to execute status and account search in parallel

This commit is contained in:
Eugenij 2019-07-11 13:55:31 +00:00 committed by kaniini
parent 4d382d1347
commit 4198c3ac39
8 changed files with 193 additions and 62 deletions
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1
CHANGELOG.md
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@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
- Metadata rendering errors resulting in the entire page being inaccessible
- Mastodon API: Handling of search timeouts (`/api/v1/search` and `/api/v2/search`)
- Mastodon API: Embedded relationships not being properly rendered in the Account entity of Status entity
- Mastodon API: Add `account_id`, `type`, `offset`, and `limit` to search API (`/api/v1/search` and `/api/v2/search`)
### Added
- MRF: Support for priming the mediaproxy cache (`Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`)

4
config/test.exs
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@ -65,7 +65,9 @@
total_user_limit: 3,
enabled: false
config :pleroma, :rate_limit, app_account_creation: {10_000, 5}
config :pleroma, :rate_limit,
search: [{1000, 30}, {1000, 30}],
app_account_creation: {10_000, 5}
config :pleroma, :http_security, report_uri: "https://endpoint.com"

2
lib/pleroma/activity.ex
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@ -344,5 +344,5 @@ def restrict_deactivated_users(query) do
)
end
defdelegate search(user, query), to: Pleroma.Activity.Search
defdelegate search(user, query, options \\ []), to: Pleroma.Activity.Search
end

21
lib/pleroma/activity/search.ex
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@ -5,14 +5,17 @@
defmodule Pleroma.Activity.Search do
alias Pleroma.Activity
alias Pleroma.Object.Fetcher
alias Pleroma.Repo
alias Pleroma.Pagination
alias Pleroma.User
alias Pleroma.Web.ActivityPub.Visibility
import Ecto.Query
def search(user, search_query) do
def search(user, search_query, options \\ []) do
index_type = if Pleroma.Config.get([:database, :rum_enabled]), do: :rum, else: :gin
limit = Enum.min([Keyword.get(options, :limit), 40])
offset = Keyword.get(options, :offset, 0)
author = Keyword.get(options, :author)
Activity
|> Activity.with_preloaded_object()
@ -20,15 +23,23 @@ def search(user, search_query) do
|> restrict_public()
|> query_with(index_type, search_query)
|> maybe_restrict_local(user)
|> Repo.all()
|> maybe_restrict_author(author)
|> Pagination.fetch_paginated(%{"offset" => offset, "limit" => limit}, :offset)
|> maybe_fetch(user, search_query)
end
def maybe_restrict_author(query, %User{} = author) do
from([a, o] in query,
where: a.actor == ^author.ap_id
)
end
def maybe_restrict_author(query, _), do: query
defp restrict_public(q) do
from([a, o] in q,
where: fragment("?->>'type' = 'Create'", a.data),
where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients,
limit: 40
where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients
)
end

29
lib/pleroma/pagination.ex
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@ -14,16 +14,28 @@ defmodule Pleroma.Pagination do
@default_limit 20
def fetch_paginated(query, params) do
def fetch_paginated(query, params, type \\ :keyset)
def fetch_paginated(query, params, :keyset) do
options = cast_params(params)
query
|> paginate(options)
|> paginate(options, :keyset)
|> Repo.all()
|> enforce_order(options)
end
def paginate(query, options) do
def fetch_paginated(query, params, :offset) do
options = cast_params(params)
query
|> paginate(options, :offset)
|> Repo.all()
end
def paginate(query, options, method \\ :keyset)
def paginate(query, options, :keyset) do
query
|> restrict(:min_id, options)
|> restrict(:since_id, options)
@ -32,11 +44,18 @@ def paginate(query, options) do
|> restrict(:limit, options)
end
def paginate(query, options, :offset) do
query
|> restrict(:offset, options)
|> restrict(:limit, options)
end
defp cast_params(params) do
param_types = %{
min_id: :string,
since_id: :string,
max_id: :string,
offset: :integer,
limit: :integer
}
@ -70,6 +89,10 @@ defp restrict(query, :order, _options) do
order_by(query, [u], fragment("? desc nulls last", u.id))
end
defp restrict(query, :offset, %{offset: offset}) do
offset(query, ^offset)
end
defp restrict(query, :limit, options) do
limit = Map.get(options, :limit, @default_limit)

8
lib/pleroma/user/search.ex
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@ -3,6 +3,7 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.User.Search do
alias Pleroma.Pagination
alias Pleroma.Repo
alias Pleroma.User
import Ecto.Query
@ -32,8 +33,7 @@ def search(query_string, opts \\ []) do
query_string
|> search_query(for_user, following)
|> paginate(result_limit, offset)
|> Repo.all()
|> Pagination.fetch_paginated(%{"offset" => offset, "limit" => result_limit}, :offset)
end)
results
@ -87,10 +87,6 @@ defp filter_blocked_domains(query, %User{info: %{domain_blocks: domain_blocks}})
defp filter_blocked_domains(query, _), do: query
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

116
lib/pleroma/web/mastodon_api/search_controller.ex
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@ -7,6 +7,7 @@ defmodule Pleroma.Web.MastodonAPI.SearchController do
alias Pleroma.Activity
alias Pleroma.Plugs.RateLimiter
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Web
alias Pleroma.Web.ControllerHelper
@ -16,43 +17,6 @@ defmodule Pleroma.Web.MastodonAPI.SearchController do
require Logger
plug(RateLimiter, :search when action in [:search, :search2, :account_search])
def search2(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
accounts = with_fallback(fn -> User.search(query, search_options(params, user)) end, [])
statuses = with_fallback(fn -> Activity.search(user, query) end, [])
tags_path = Web.base_url() <> "/tag/"
tags =
query
|> prepare_tags
|> 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 = with_fallback(fn -> User.search(query, search_options(params, user)) end)
statuses = with_fallback(fn -> Activity.search(user, query) end)
tags = prepare_tags(query)
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)
@ -60,12 +24,36 @@ def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) d
json(conn, res)
end
defp prepare_tags(query) do
query
|> String.split()
|> Enum.uniq()
|> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
|> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
def search2(conn, params), do: do_search(:v2, conn, params)
def search(conn, params), do: do_search(:v1, conn, params)
defp do_search(version, %{assigns: %{user: user}} = conn, %{"q" => query} = params) do
options = search_options(params, user)
timeout = Keyword.get(Repo.config(), :timeout, 15_000)
default_values = %{"statuses" => [], "accounts" => [], "hashtags" => []}
result =
default_values
|> Enum.map(fn {resource, default_value} ->
if params["type"] == nil or params["type"] == resource do
{resource, fn -> resource_search(version, resource, query, options) end}
else
{resource, fn -> default_value end}
end
end)
|> Task.async_stream(fn {resource, f} -> {resource, with_fallback(f)} end,
timeout: timeout,
on_timeout: :kill_task
)
|> Enum.reduce(default_values, fn
{:ok, {resource, result}}, acc ->
Map.put(acc, resource, result)
_error, acc ->
acc
end)
json(conn, result)
end
defp search_options(params, user) do
@ -74,8 +62,45 @@ defp search_options(params, user) do
following: params["following"] == "true",
limit: ControllerHelper.fetch_integer_param(params, "limit"),
offset: ControllerHelper.fetch_integer_param(params, "offset"),
type: params["type"],
author: get_author(params),
for_user: user
]
|> Enum.filter(&elem(&1, 1))
end
defp resource_search(_, "accounts", query, options) do
accounts = with_fallback(fn -> User.search(query, options) end)
AccountView.render("accounts.json", users: accounts, for: options[:for_user], as: :user)
end
defp resource_search(_, "statuses", query, options) do
statuses = with_fallback(fn -> Activity.search(options[:for_user], query, options) end)
StatusView.render("index.json", activities: statuses, for: options[:for_user], as: :activity)
end
defp resource_search(:v2, "hashtags", query, _options) do
tags_path = Web.base_url() <> "/tag/"
query
|> prepare_tags()
|> Enum.map(fn tag ->
tag = String.trim_leading(tag, "#")
%{name: tag, url: tags_path <> tag}
end)
end
defp resource_search(:v1, "hashtags", query, _options) do
query
|> prepare_tags()
|> Enum.map(fn tag -> String.trim_leading(tag, "#") end)
end
defp prepare_tags(query) do
query
|> String.split()
|> Enum.uniq()
|> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
end
defp with_fallback(f, fallback \\ []) do
@ -87,4 +112,9 @@ defp with_fallback(f, fallback \\ []) do
fallback
end
end
defp get_author(%{"account_id" => account_id}) when is_binary(account_id),
do: User.get_cached_by_id(account_id)
defp get_author(_params), do: nil
end

74
test/web/mastodon_api/search_controller_test.exs
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@ -22,7 +22,7 @@ defmodule Pleroma.Web.MastodonAPI.SearchControllerTest do
test "it returns empty result if user or status search return undefined error", %{conn: conn} do
with_mocks [
{Pleroma.User, [], [search: fn _q, _o -> raise "Oops" end]},
{Pleroma.Activity, [], [search: fn _u, _q -> raise "Oops" end]}
{Pleroma.Activity, [], [search: fn _u, _q, _o -> raise "Oops" end]}
] do
conn = get(conn, "/api/v2/search", %{"q" => "2hu"})
@ -51,7 +51,6 @@ test "search", %{conn: conn} do
conn = get(conn, "/api/v2/search", %{"q" => "2hu #private"})
assert results = json_response(conn, 200)
# IO.inspect results
[account | _] = results["accounts"]
assert account["id"] == to_string(user_three.id)
@ -98,7 +97,7 @@ test "account search", %{conn: conn} do
test "it returns empty result if user or status search return undefined error", %{conn: conn} do
with_mocks [
{Pleroma.User, [], [search: fn _q, _o -> raise "Oops" end]},
{Pleroma.Activity, [], [search: fn _u, _q -> raise "Oops" end]}
{Pleroma.Activity, [], [search: fn _u, _q, _o -> raise "Oops" end]}
] do
conn =
conn
@ -195,5 +194,74 @@ test "search doesn't fetch remote accounts if resolve is false", %{conn: conn} d
assert results = json_response(conn, 200)
assert [] == results["accounts"]
end
test "search with limit and offset", %{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, _activity1} = CommonAPI.post(user, %{"status" => "This is about 2hu"})
{:ok, _activity2} = CommonAPI.post(user, %{"status" => "This is also about 2hu"})
result =
conn
|> get("/api/v1/search", %{"q" => "2hu", "limit" => 1})
assert results = json_response(result, 200)
assert [%{"id" => activity_id1}] = results["statuses"]
assert [_] = results["accounts"]
results =
conn
|> get("/api/v1/search", %{"q" => "2hu", "limit" => 1, "offset" => 1})
|> json_response(200)
assert [%{"id" => activity_id2}] = results["statuses"]
assert [] = results["accounts"]
assert activity_id1 != activity_id2
end
test "search returns results only for the given type", %{conn: conn} do
user = insert(:user)
_user_two = insert(:user, %{nickname: "shp@heldscal.la", name: "I love 2hu"})
{:ok, _activity} = CommonAPI.post(user, %{"status" => "This is about 2hu"})
assert %{"statuses" => [_activity], "accounts" => [], "hashtags" => []} =
conn
|> get("/api/v1/search", %{"q" => "2hu", "type" => "statuses"})
|> json_response(200)
assert %{"statuses" => [], "accounts" => [_user_two], "hashtags" => []} =
conn
|> get("/api/v1/search", %{"q" => "2hu", "type" => "accounts"})
|> json_response(200)
end
test "search uses account_id to filter statuses by the author", %{conn: conn} do
user = insert(:user, %{nickname: "shp@shitposter.club"})
user_two = insert(:user, %{nickname: "shp@heldscal.la", name: "I love 2hu"})
{:ok, activity1} = CommonAPI.post(user, %{"status" => "This is about 2hu"})
{:ok, activity2} = CommonAPI.post(user_two, %{"status" => "This is also about 2hu"})
results =
conn
|> get("/api/v1/search", %{"q" => "2hu", "account_id" => user.id})
|> json_response(200)
assert [%{"id" => activity_id1}] = results["statuses"]
assert activity_id1 == activity1.id
assert [_] = results["accounts"]
results =
conn
|> get("/api/v1/search", %{"q" => "2hu", "account_id" => user_two.id})
|> json_response(200)
assert [%{"id" => activity_id2}] = results["statuses"]
assert activity_id2 == activity2.id
end
end
end